{
  "id": "/valencia/festivals/1999",
  "place": {
    "id": "3625549",
    "slug": "valencia",
    "name": "Valencia",
    "region": "Carabobo, Venezuela",
    "country": "VE",
    "lat": 10.16153,
    "lon": -68.00044,
    "elevation_m": 547,
    "tz": "America/Caracas"
  },
  "year": 1999,
  "tradition": "smarta",
  "method": "pac-rp@2026.1",
  "ruleset": "2026.3-draft",
  "rulings": [
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-01-04",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11762,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-01-04T17:47:41-04:00",
          "utc": "1999-01-04T21:47:41Z",
          "ms": 915486461346.6658
        },
        "end": {
          "local": "1999-01-05T17:31:46-04:00",
          "utc": "1999-01-05T21:31:46Z",
          "ms": 915571905623.5778
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-04T17:47:41-04:00",
          "utc": "1999-01-04T21:47:41Z",
          "ms": 915486461346.6658
        },
        "end": {
          "local": "1999-01-05T17:31:46-04:00",
          "utc": "1999-01-05T21:31:46Z",
          "ms": 915571905623.5778
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-01-04",
          "window": {
            "start": {
              "local": "1999-01-04T21:03:43-04:00",
              "utc": "1999-01-05T01:03:43Z",
              "ms": 915498223080.1559
            },
            "end": {
              "local": "1999-01-04T21:03:43-04:00",
              "utc": "1999-01-05T01:03:43Z",
              "ms": 915498223080.1559
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-01-05",
          "window": {
            "start": {
              "local": "1999-01-05T21:56:04-04:00",
              "utc": "1999-01-06T01:56:04Z",
              "ms": 915587763999.682
            },
            "end": {
              "local": "1999-01-05T21:56:04-04:00",
              "utc": "1999-01-06T01:56:04Z",
              "ms": 915587763999.682
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:48 on Mon 4 Jan to 17:32 on Tue 5 Jan.",
          "fact": "1999-01-04T21:47:41Z → 1999-01-05T21:31:46Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:04 on the 4th and 21:56 on the 5th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 4th and is not on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 11762 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Monday 4 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Monday 4 January. Caturthī runs from 17:48 on Mon 4 Jan to 17:32 on Tue 5 Jan and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-01-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/bhogi",
      "festival": "bhogi",
      "name": "Bhogi",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39477,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-02-12T20:29:46-04:00",
          "utc": "1999-02-13T00:29:46Z",
          "ms": 918865785866.7513
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-13T18:27:59-04:00",
              "utc": "1999-01-13T22:27:59Z",
              "ms": 916266478721.2913
            },
            "end": {
              "local": "1999-01-14T18:28:29-04:00",
              "utc": "1999-01-14T22:28:29Z",
              "ms": 916352909277.7758
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-14T18:28:29-04:00",
              "utc": "1999-01-14T22:28:29Z",
              "ms": 916352909277.7758
            },
            "end": {
              "local": "1999-01-15T18:28:59-04:00",
              "utc": "1999-01-15T22:28:59Z",
              "ms": 916439339496.74
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "follows": {
        "festival": "pongal",
        "name": "Pongal",
        "local_date": "1999-01-14",
        "days": -1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 07:31 on Thu 14 Jan.",
          "fact": "1999-01-14T11:30:32Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 18:28, and the day of the 15th ends at 18:29.",
          "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from sunset → only-day · margin 39477 s"
        },
        {
          "step": "counted",
          "text": "Bhogi is kept the day before Pongal: Thursday 14 January is the day taken above.",
          "fact": "follows: pongal − 1 d"
        },
        {
          "step": "ruling",
          "text": "Bhogi, Valencia, 1999: Wednesday 13 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "bhogi",
        "follows": {
          "festival": "pongal",
          "days": -1
        },
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)."
          },
          {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day."
          }
        ],
        "rashi": "Makara",
        "day_from": "sunset"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-13",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "1999-01-13",
          "statement": "Counted from midnight",
          "reference": {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "1999-01-13",
          "statement": "Counted from sunrise (the Orissa rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight."
          }
        }
      ],
      "quote": "In Valencia, Bhogi 1999 falls on Wednesday 13 January. It is kept the day before Pongal, which falls on Thursday 14 January. The Sun enters Makara at 07:31 on Thu 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.",
      "cite": "https://ahargana.org/valencia/festivals/1999/bhogi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-01-13",
      "festival": "ekadashi",
      "name": "Ṣaṭtilā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 316,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-01-12T04:39:53-04:00",
          "utc": "1999-01-12T08:39:53Z",
          "ms": 916130393414.2554
        },
        "end": {
          "local": "1999-01-13T06:58:34-04:00",
          "utc": "1999-01-13T10:58:34Z",
          "ms": 916225113996.1014
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-12T04:39:53-04:00",
          "utc": "1999-01-12T08:39:53Z",
          "ms": 916130393414.2554
        },
        "end": {
          "local": "1999-01-13T06:58:34-04:00",
          "utc": "1999-01-13T10:58:34Z",
          "ms": 916225113996.1014
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-01-12",
          "window": {
            "start": {
              "local": "1999-01-12T06:53:03-04:00",
              "utc": "1999-01-12T10:53:03Z",
              "ms": 916138383184.7413
            },
            "end": {
              "local": "1999-01-12T06:53:03-04:00",
              "utc": "1999-01-12T10:53:03Z",
              "ms": 916138383184.7413
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-01-13",
          "window": {
            "start": {
              "local": "1999-01-13T06:53:18-04:00",
              "utc": "1999-01-13T10:53:18Z",
              "ms": 916224798173.0991
            },
            "end": {
              "local": "1999-01-13T06:53:18-04:00",
              "utc": "1999-01-13T10:53:18Z",
              "ms": 916224798173.0991
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "paraviddha",
      "parana": {
        "local_date": "1999-01-14",
        "start": {
          "local": "1999-01-14T06:53:32-04:00",
          "utc": "1999-01-14T10:53:32Z",
          "ms": 916311212230.5973
        },
        "end": {
          "local": "1999-01-14T08:54:30-04:00",
          "utc": "1999-01-14T12:54:30Z",
          "ms": 916318470473.242
        },
        "basis": "pratah",
        "ends_with_dvadashi": true,
        "dvadashi_end": {
          "local": "1999-01-14T08:54:30-04:00",
          "utc": "1999-01-14T12:54:30Z",
          "ms": 916318470473.242
        },
        "hari_vasara_end": {
          "local": "1999-01-13T13:27:33-04:00",
          "utc": "1999-01-13T17:27:33Z",
          "ms": 916248453115.3866
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 04:40 on Tue 12 Jan to 06:59 on Wed 13 Jan.",
          "fact": "1999-01-12T08:39:53Z → 1999-01-13T10:58:34Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:53 on the 12th and 06:53 on the 13th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 12th and is on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Both sunrises qualify. Paraviddhā: the second is taken.",
          "fact": "priority: paraviddha → paraviddha · margin 316 s"
        },
        {
          "step": "ruling",
          "text": "Ṣaṭtilā Ekādaśī, Valencia, 1999: Wednesday 13 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-13",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Ṣaṭtilā Ekādaśī 1999 falls on Wednesday 13 January. Ekādaśī runs from 04:40 on Tue 12 Jan to 06:59 on Wed 13 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-01-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pongal",
      "festival": "pongal",
      "name": "Pongal",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39477,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-02-12T20:29:46-04:00",
          "utc": "1999-02-13T00:29:46Z",
          "ms": 918865785866.7513
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-13T18:27:59-04:00",
              "utc": "1999-01-13T22:27:59Z",
              "ms": 916266478721.2913
            },
            "end": {
              "local": "1999-01-14T18:28:29-04:00",
              "utc": "1999-01-14T22:28:29Z",
              "ms": 916352909277.7758
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-14T18:28:29-04:00",
              "utc": "1999-01-14T22:28:29Z",
              "ms": 916352909277.7758
            },
            "end": {
              "local": "1999-01-15T18:28:59-04:00",
              "utc": "1999-01-15T22:28:59Z",
              "ms": 916439339496.74
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 07:31 on Thu 14 Jan.",
          "fact": "1999-01-14T11:30:32Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 18:28, and the day of the 15th ends at 18:29.",
          "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from sunset → only-day · margin 39477 s"
        },
        {
          "step": "ruling",
          "text": "Pongal, Valencia, 1999: Thursday 14 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "pongal",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)."
          },
          {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day."
          }
        ],
        "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.",
        "rashi": "Makara",
        "day_from": "sunset"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "1999-01-14",
          "statement": "Counted from midnight",
          "reference": {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "1999-01-14",
          "statement": "Counted from sunrise (the Orissa rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight."
          }
        }
      ],
      "quote": "In Valencia, Pongal 1999 falls on Thursday 14 January. The Sun enters Makara at 07:31 on Thu 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pongal",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/makara-sankranti",
      "festival": "makara-sankranti",
      "name": "Makara Saṅkrānti",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27032,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-02-12T20:29:46-04:00",
          "utc": "1999-02-13T00:29:46Z",
          "ms": 918865785866.7513
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        }
      },
      "kaala": "civil-day",
      "days": [
        {
          "local_date": "1999-01-13",
          "window": {
            "start": {
              "local": "1999-01-13T00:00:00-04:00",
              "utc": "1999-01-13T04:00:00Z",
              "ms": 916200000000
            },
            "end": {
              "local": "1999-01-14T00:00:00-04:00",
              "utc": "1999-01-14T04:00:00Z",
              "ms": 916286400000
            }
          },
          "covered_min": 0,
          "window_min": 1440,
          "qualifies": false
        },
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-14T00:00:00-04:00",
              "utc": "1999-01-14T04:00:00Z",
              "ms": 916286400000
            },
            "end": {
              "local": "1999-01-15T00:00:00-04:00",
              "utc": "1999-01-15T04:00:00Z",
              "ms": 916372800000
            }
          },
          "covered_min": 1,
          "window_min": 1440,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 07:31 on Thu 14 Jan.",
          "fact": "1999-01-14T11:30:32Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day is counted from midnight to midnight, on the clock of Valencia.",
          "fact": "civil-day: midnight-to-midnight · America/Caracas"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 14th, not the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from midnight → only-day · margin 27032 s"
        },
        {
          "step": "ruling",
          "text": "Makara Saṅkrānti, Valencia, 1999: Thursday 14 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "makara-sankranti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)."
          },
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        ],
        "rashi": "Makara",
        "day_from": "midnight"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "1999-01-14",
          "statement": "Counted from sunrise (the Orissa rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunset-rule",
          "local_date": "1999-01-14",
          "statement": "Past sunset, the next day (the Tamil rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day."
          }
        }
      ],
      "quote": "In Valencia, Makara Saṅkrānti 1999 falls on Thursday 14 January. The Sun enters Makara at 07:31 on Thu 14 Jan, and the rule counts the day from midnight.",
      "cite": "https://ahargana.org/valencia/festivals/1999/makara-sankranti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-01-14",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29212,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-01-14T08:54:30-04:00",
          "utc": "1999-01-14T12:54:30Z",
          "ms": 916318470473.242
        },
        "end": {
          "local": "1999-01-15T10:22:08-04:00",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-14T08:54:30-04:00",
          "utc": "1999-01-14T12:54:30Z",
          "ms": 916318470473.242
        },
        "end": {
          "local": "1999-01-15T10:22:08-04:00",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-14T18:28:29-04:00",
              "utc": "1999-01-14T22:28:29Z",
              "ms": 916352909277.7758
            },
            "end": {
              "local": "1999-01-14T20:07:51-04:00",
              "utc": "1999-01-15T00:07:51Z",
              "ms": 916358871419.4722
            }
          },
          "covered_min": 99,
          "window_min": 99,
          "qualifies": true
        },
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-15T18:28:59-04:00",
              "utc": "1999-01-15T22:28:59Z",
              "ms": 916439339496.74
            },
            "end": {
              "local": "1999-01-15T20:08:19-04:00",
              "utc": "1999-01-16T00:08:19Z",
              "ms": 916445299228.7372
            }
          },
          "covered_min": 0,
          "window_min": 99,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 08:55 on Thu 14 Jan to 10:22 on Fri 15 Jan.",
          "fact": "1999-01-14T12:54:30Z → 1999-01-15T14:22:08Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:28–20:08 on the 14th, 18:29–20:08 on the 15th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 99 of 99 minutes on the 14th and 0 of 99 on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29212 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Thursday 14 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Thursday 14 January. Trayodaśī runs from 08:55 on Thu 14 Jan to 10:22 on Fri 15 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-01-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/mattu-pongal",
      "festival": "mattu-pongal",
      "name": "Mattu Pongal",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39477,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-02-12T20:29:46-04:00",
          "utc": "1999-02-13T00:29:46Z",
          "ms": 918865785866.7513
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-01-14T07:30:32-04:00",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-13T18:27:59-04:00",
              "utc": "1999-01-13T22:27:59Z",
              "ms": 916266478721.2913
            },
            "end": {
              "local": "1999-01-14T18:28:29-04:00",
              "utc": "1999-01-14T22:28:29Z",
              "ms": 916352909277.7758
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-14T18:28:29-04:00",
              "utc": "1999-01-14T22:28:29Z",
              "ms": 916352909277.7758
            },
            "end": {
              "local": "1999-01-15T18:28:59-04:00",
              "utc": "1999-01-15T22:28:59Z",
              "ms": 916439339496.74
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "follows": {
        "festival": "pongal",
        "name": "Pongal",
        "local_date": "1999-01-14",
        "days": 1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 07:31 on Thu 14 Jan.",
          "fact": "1999-01-14T11:30:32Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 18:28, and the day of the 15th ends at 18:29.",
          "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from sunset → only-day · margin 39477 s"
        },
        {
          "step": "counted",
          "text": "Mattu Pongal is kept the day after Pongal: Thursday 14 January is the day taken above.",
          "fact": "follows: pongal + 1 d"
        },
        {
          "step": "ruling",
          "text": "Mattu Pongal, Valencia, 1999: Friday 15 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "mattu-pongal",
        "follows": {
          "festival": "pongal",
          "days": 1
        },
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)."
          },
          {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day."
          }
        ],
        "rashi": "Makara",
        "day_from": "sunset"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "1999-01-15",
          "statement": "Counted from midnight",
          "reference": {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "1999-01-15",
          "statement": "Counted from sunrise (the Orissa rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight."
          }
        }
      ],
      "quote": "In Valencia, Mattu Pongal 1999 falls on Friday 15 January. It is kept the day after Pongal, which falls on Thursday 14 January. The Sun enters Makara at 07:31 on Thu 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.",
      "cite": "https://ahargana.org/valencia/festivals/1999/mattu-pongal",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-01-15",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33421,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-01-15T10:22:08-04:00",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        },
        "end": {
          "local": "1999-01-16T11:19:12-04:00",
          "utc": "1999-01-16T15:19:12Z",
          "ms": 916499952170.6957
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-15T10:22:08-04:00",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        },
        "end": {
          "local": "1999-01-16T11:19:12-04:00",
          "utc": "1999-01-16T15:19:12Z",
          "ms": 916499952170.6957
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-15T00:17:07-04:00",
              "utc": "1999-01-15T04:17:07Z",
              "ms": 916373827309.1375
            },
            "end": {
              "local": "1999-01-15T01:05:07-04:00",
              "utc": "1999-01-15T05:05:07Z",
              "ms": 916376707309.1375
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-16T00:17:28-04:00",
              "utc": "1999-01-16T04:17:28Z",
              "ms": 916460248491.7294
            },
            "end": {
              "local": "1999-01-16T01:05:28-04:00",
              "utc": "1999-01-16T05:05:28Z",
              "ms": 916463128491.7294
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 10:22 on Fri 15 Jan to 11:19 on Sat 16 Jan.",
          "fact": "1999-01-15T14:22:08Z → 1999-01-16T15:19:12Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:17–01:05 on the 14th, 00:17–01:05 on the 15th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 33421 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Friday 15 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Friday 15 January. Caturdaśī runs from 10:22 on Fri 15 Jan to 11:19 on Sat 16 Jan and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-01-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/yama-tarpana",
      "festival": "yama-tarpana",
      "name": "Yama Tarpaṇa",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12502,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-01-15T10:22:08-04:00",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        },
        "end": {
          "local": "1999-01-16T11:19:12-04:00",
          "utc": "1999-01-16T15:19:12Z",
          "ms": 916499952170.6957
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-15T10:22:08-04:00",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        },
        "end": {
          "local": "1999-01-16T11:19:12-04:00",
          "utc": "1999-01-16T15:19:12Z",
          "ms": 916499952170.6957
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-15T05:14:23-04:00",
              "utc": "1999-01-15T09:14:23Z",
              "ms": 916391663198.8029
            },
            "end": {
              "local": "1999-01-15T06:53:45-04:00",
              "utc": "1999-01-15T10:53:45Z",
              "ms": 916397625340.4993
            }
          },
          "covered_min": 0,
          "window_min": 99,
          "qualifies": false
        },
        {
          "local_date": "1999-01-16",
          "window": {
            "start": {
              "local": "1999-01-16T05:14:38-04:00",
              "utc": "1999-01-16T09:14:38Z",
              "ms": 916478077754.7216
            },
            "end": {
              "local": "1999-01-16T06:53:57-04:00",
              "utc": "1999-01-16T10:53:57Z",
              "ms": 916484037486.7188
            }
          },
          "covered_min": 99,
          "window_min": 99,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 10:22 on Fri 15 Jan to 11:19 on Sat 16 Jan.",
          "fact": "1999-01-15T14:22:08Z → 1999-01-16T15:19:12Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:14–06:54 on the 15th, 05:15–06:54 on the 16th.",
          "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 99 minutes on the 15th and 99 of 99 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one dawn qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 12502 s"
        },
        {
          "step": "ruling",
          "text": "Yama Tarpaṇa, Valencia, 1999: Saturday 16 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "yama-tarpana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)"
          }
        ],
        "kaala": "arunodaya",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Yama Tarpaṇa 1999 falls on Saturday 16 January. Caturdaśī runs from 10:22 on Fri 15 Jan to 11:19 on Sat 16 Jan and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/valencia/festivals/1999/yama-tarpana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ganesha-jayanti",
      "festival": "ganesha-jayanti",
      "name": "Gaṇeśa Jayantī",
      "everyday": "Maghi Ganesh Jayanti",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6626,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-01-20T10:28:35-04:00",
          "utc": "1999-01-20T14:28:35Z",
          "ms": 916842514500.3251
        },
        "end": {
          "local": "1999-01-21T09:19:30-04:00",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-20T10:28:35-04:00",
          "utc": "1999-01-20T14:28:35Z",
          "ms": 916842514500.3251
        },
        "end": {
          "local": "1999-01-21T09:19:30-04:00",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-01-20",
          "window": {
            "start": {
              "local": "1999-01-20T12:19:00-04:00",
              "utc": "1999-01-20T16:19:00Z",
              "ms": 916849140352.5907
            },
            "end": {
              "local": "1999-01-20T13:07:00-04:00",
              "utc": "1999-01-20T17:07:00Z",
              "ms": 916852020352.5907
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-01-21",
          "window": {
            "start": {
              "local": "1999-01-21T12:19:18-04:00",
              "utc": "1999-01-21T16:19:18Z",
              "ms": 916935557723.9232
            },
            "end": {
              "local": "1999-01-21T13:07:18-04:00",
              "utc": "1999-01-21T17:07:18Z",
              "ms": 916938437723.9232
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 10:29 on Wed 20 Jan to 09:20 on Thu 21 Jan.",
          "fact": "1999-01-20T14:28:35Z → 1999-01-21T13:19:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:19–13:07 on the 20th, 12:19–13:07 on the 21st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 6626 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Jayantī, Valencia, 1999: Wednesday 20 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ganesha-jayanti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1999 falls on Wednesday 20 January. Caturthī runs from 10:29 on Wed 20 Jan to 09:20 on Thu 21 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ganesha-jayanti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/tila-chaturthi",
      "festival": "tila-chaturthi",
      "name": "Tila Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28970,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-01-20T10:28:35-04:00",
          "utc": "1999-01-20T14:28:35Z",
          "ms": 916842514500.3251
        },
        "end": {
          "local": "1999-01-21T09:19:30-04:00",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-20T10:28:35-04:00",
          "utc": "1999-01-20T14:28:35Z",
          "ms": 916842514500.3251
        },
        "end": {
          "local": "1999-01-21T09:19:30-04:00",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-01-20",
          "window": {
            "start": {
              "local": "1999-01-20T18:31:25-04:00",
              "utc": "1999-01-20T22:31:25Z",
              "ms": 916871484566.3568
            },
            "end": {
              "local": "1999-01-20T20:10:31-04:00",
              "utc": "1999-01-21T00:10:31Z",
              "ms": 916877431057.9478
            }
          },
          "covered_min": 99,
          "window_min": 99,
          "qualifies": true
        },
        {
          "local_date": "1999-01-21",
          "window": {
            "start": {
              "local": "1999-01-21T18:31:52-04:00",
              "utc": "1999-01-21T22:31:52Z",
              "ms": 916957912194.5574
            },
            "end": {
              "local": "1999-01-21T20:10:56-04:00",
              "utc": "1999-01-22T00:10:56Z",
              "ms": 916963855812.2169
            }
          },
          "covered_min": 0,
          "window_min": 99,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 10:29 on Wed 20 Jan to 09:20 on Thu 21 Jan.",
          "fact": "1999-01-20T14:28:35Z → 1999-01-21T13:19:30Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:31–20:11 on the 20th, 18:32–20:11 on the 21st.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during pradoṣa. It covers 99 of 99 minutes on the 20th and 0 of 99 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 28970 s"
        },
        {
          "step": "ruling",
          "text": "Tila Caturthī, Valencia, 1999: Wednesday 20 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "tila-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Tila Caturthī 1999 falls on Wednesday 20 January. Caturthī runs from 10:29 on Wed 20 Jan to 09:20 on Thu 21 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/tila-chaturthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shri-panchami",
      "festival": "shri-panchami",
      "name": "Śrī Pañcamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10788,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-01-21T09:19:30-04:00",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        },
        "end": {
          "local": "1999-01-22T07:53:05-04:00",
          "utc": "1999-01-22T11:53:05Z",
          "ms": 917005984732.313
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-21T09:19:30-04:00",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        },
        "end": {
          "local": "1999-01-22T07:53:05-04:00",
          "utc": "1999-01-22T11:53:05Z",
          "ms": 917005984732.313
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-01-21",
          "window": {
            "start": {
              "local": "1999-01-21T12:19:18-04:00",
              "utc": "1999-01-21T16:19:18Z",
              "ms": 916935557723.9232
            },
            "end": {
              "local": "1999-01-21T13:07:18-04:00",
              "utc": "1999-01-21T17:07:18Z",
              "ms": 916938437723.9232
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-01-22",
          "window": {
            "start": {
              "local": "1999-01-22T12:19:34-04:00",
              "utc": "1999-01-22T16:19:34Z",
              "ms": 917021974316.8885
            },
            "end": {
              "local": "1999-01-22T13:07:34-04:00",
              "utc": "1999-01-22T17:07:34Z",
              "ms": 917024854316.8885
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 09:20 on Thu 21 Jan to 07:53 on Fri 22 Jan.",
          "fact": "1999-01-21T13:19:30Z → 1999-01-22T11:53:05Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:19–13:07 on the 21st, 12:20–13:08 on the 22nd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 10788 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Pañcamī, Valencia, 1999: Thursday 21 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shri-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śrī Pañcamī 1999 falls on Thursday 21 January. Pañcamī runs from 09:20 on Thu 21 Jan to 07:53 on Fri 22 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shri-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vasanta-panchami",
      "festival": "vasanta-panchami",
      "name": "Vasanta Pañcamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10788,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-01-21T09:19:30-04:00",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        },
        "end": {
          "local": "1999-01-22T07:53:05-04:00",
          "utc": "1999-01-22T11:53:05Z",
          "ms": 917005984732.313
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-21T09:19:30-04:00",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        },
        "end": {
          "local": "1999-01-22T07:53:05-04:00",
          "utc": "1999-01-22T11:53:05Z",
          "ms": 917005984732.313
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-01-21",
          "window": {
            "start": {
              "local": "1999-01-21T12:19:18-04:00",
              "utc": "1999-01-21T16:19:18Z",
              "ms": 916935557723.9232
            },
            "end": {
              "local": "1999-01-21T13:07:18-04:00",
              "utc": "1999-01-21T17:07:18Z",
              "ms": 916938437723.9232
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-01-22",
          "window": {
            "start": {
              "local": "1999-01-22T12:19:34-04:00",
              "utc": "1999-01-22T16:19:34Z",
              "ms": 917021974316.8885
            },
            "end": {
              "local": "1999-01-22T13:07:34-04:00",
              "utc": "1999-01-22T17:07:34Z",
              "ms": 917024854316.8885
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 09:20 on Thu 21 Jan to 07:53 on Fri 22 Jan.",
          "fact": "1999-01-21T13:19:30Z → 1999-01-22T11:53:05Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:19–13:07 on the 21st, 12:20–13:08 on the 22nd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 10788 s"
        },
        {
          "step": "ruling",
          "text": "Vasanta Pañcamī, Valencia, 1999: Thursday 21 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vasanta-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vasanta Pañcamī 1999 falls on Thursday 21 January. Pañcamī runs from 09:20 on Thu 21 Jan to 07:53 on Fri 22 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vasanta-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ratha-saptami",
      "festival": "ratha-saptami",
      "name": "Ratha Saptamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2608,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-01-23T06:11:27-04:00",
          "utc": "1999-01-23T10:11:27Z",
          "ms": 917086286631.6344
        },
        "end": {
          "local": "1999-01-24T04:16:42-04:00",
          "utc": "1999-01-24T08:16:42Z",
          "ms": 917165801885.867
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-23T06:11:27-04:00",
          "utc": "1999-01-23T10:11:27Z",
          "ms": 917086286631.6344
        },
        "end": {
          "local": "1999-01-24T04:16:42-04:00",
          "utc": "1999-01-24T08:16:42Z",
          "ms": 917165801885.867
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "1999-01-23",
          "window": {
            "start": {
              "local": "1999-01-23T05:15:54-04:00",
              "utc": "1999-01-23T09:15:54Z",
              "ms": 917082953679.7319
            },
            "end": {
              "local": "1999-01-23T06:54:54-04:00",
              "utc": "1999-01-23T10:54:54Z",
              "ms": 917088894352.4949
            }
          },
          "covered_min": 43,
          "window_min": 99,
          "qualifies": true
        },
        {
          "local_date": "1999-01-24",
          "window": {
            "start": {
              "local": "1999-01-24T05:16:01-04:00",
              "utc": "1999-01-24T09:16:01Z",
              "ms": 917169360665.6685
            },
            "end": {
              "local": "1999-01-24T06:54:58-04:00",
              "utc": "1999-01-24T10:54:58Z",
              "ms": 917175298324.4731
            }
          },
          "covered_min": 0,
          "window_min": 99,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 06:11 on Sat 23 Jan to 04:17 on Sun 24 Jan.",
          "fact": "1999-01-23T10:11:27Z → 1999-01-24T08:16:42Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:16–06:55 on the 23rd, 05:16–06:55 on the 24th.",
          "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during aruṇodaya. It covers 43 of 99 minutes on the 23rd and 0 of 99 on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one dawn qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 2608 s"
        },
        {
          "step": "ruling",
          "text": "Ratha Saptamī, Valencia, 1999: Saturday 23 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ratha-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]."
          }
        ],
        "kaala": "arunodaya",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Ratha Saptamī 1999 falls on Saturday 23 January. Saptamī runs from 06:11 on Sat 23 Jan to 04:17 on Sun 24 Jan and covers 43 of 99 minutes of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ratha-saptami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-01-27",
      "festival": "ekadashi",
      "name": "Jayā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33303,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-01-26T21:40:01-04:00",
          "utc": "1999-01-27T01:40:01Z",
          "ms": 917401201096.936
        },
        "end": {
          "local": "1999-01-27T19:22:23-04:00",
          "utc": "1999-01-27T23:22:23Z",
          "ms": 917479343143.4902
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-26T21:40:01-04:00",
          "utc": "1999-01-27T01:40:01Z",
          "ms": 917401201096.936
        },
        "end": {
          "local": "1999-01-27T19:22:23-04:00",
          "utc": "1999-01-27T23:22:23Z",
          "ms": 917479343143.4902
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-01-27",
          "window": {
            "start": {
              "local": "1999-01-27T06:55:04-04:00",
              "utc": "1999-01-27T10:55:04Z",
              "ms": 917434503901.3053
            },
            "end": {
              "local": "1999-01-27T06:55:04-04:00",
              "utc": "1999-01-27T10:55:04Z",
              "ms": 917434503901.3053
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-01-28",
          "window": {
            "start": {
              "local": "1999-01-28T06:55:04-04:00",
              "utc": "1999-01-28T10:55:04Z",
              "ms": 917520903652.6571
            },
            "end": {
              "local": "1999-01-28T06:55:04-04:00",
              "utc": "1999-01-28T10:55:04Z",
              "ms": 917520903652.6571
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-01-28",
        "start": {
          "local": "1999-01-28T06:55:04-04:00",
          "utc": "1999-01-28T10:55:04Z",
          "ms": 917520903652.6571
        },
        "end": {
          "local": "1999-01-28T09:15:01-04:00",
          "utc": "1999-01-28T13:15:01Z",
          "ms": 917529300963.0482
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-01-28T17:10:06-04:00",
          "utc": "1999-01-28T21:10:06Z",
          "ms": 917557806293.7622
        },
        "hari_vasara_end": {
          "local": "1999-01-28T00:49:19-04:00",
          "utc": "1999-01-28T04:49:19Z",
          "ms": 917498958931.0582
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 21:40 on Tue 26 Jan to 19:22 on Wed 27 Jan.",
          "fact": "1999-01-27T01:40:01Z → 1999-01-27T23:22:23Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:55 on the 27th and 06:55 on the 28th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 27th and is not on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 33303 s"
        },
        {
          "step": "ruling",
          "text": "Jayā Ekādaśī, Valencia, 1999: Wednesday 27 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Jayā Ekādaśī 1999 falls on Wednesday 27 January. Ekādaśī runs from 21:40 on Tue 26 Jan to 19:22 on Wed 27 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-01-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/bhishma-dvadashi",
      "festival": "bhishma-dvadashi",
      "name": "Bhīṣma Dvādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14469,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-01-27T19:22:23-04:00",
          "utc": "1999-01-27T23:22:23Z",
          "ms": 917479343143.4902
        },
        "end": {
          "local": "1999-01-28T17:10:06-04:00",
          "utc": "1999-01-28T21:10:06Z",
          "ms": 917557806293.7622
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-27T19:22:23-04:00",
          "utc": "1999-01-27T23:22:23Z",
          "ms": 917479343143.4902
        },
        "end": {
          "local": "1999-01-28T17:10:06-04:00",
          "utc": "1999-01-28T21:10:06Z",
          "ms": 917557806293.7622
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-01-27",
          "window": {
            "start": {
              "local": "1999-01-27T12:20:45-04:00",
              "utc": "1999-01-27T16:20:45Z",
              "ms": 917454045211.1605
            },
            "end": {
              "local": "1999-01-27T13:08:45-04:00",
              "utc": "1999-01-27T17:08:45Z",
              "ms": 917456925211.1605
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-01-28",
          "window": {
            "start": {
              "local": "1999-01-28T12:20:57-04:00",
              "utc": "1999-01-28T16:20:57Z",
              "ms": 917540456928.635
            },
            "end": {
              "local": "1999-01-28T13:08:57-04:00",
              "utc": "1999-01-28T17:08:57Z",
              "ms": 917543336928.635
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 19:22 on Wed 27 Jan to 17:10 on Thu 28 Jan.",
          "fact": "1999-01-27T23:22:23Z → 1999-01-28T21:10:06Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:21–13:09 on the 27th, 12:21–13:09 on the 28th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 14469 s"
        },
        {
          "step": "ruling",
          "text": "Bhīṣma Dvādaśī, Valencia, 1999: Thursday 28 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "bhishma-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Bhīṣma Dvādaśī 1999 falls on Thursday 28 January. Dvādaśī runs from 19:22 on Wed 27 Jan to 17:10 on Thu 28 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/bhishma-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-01-28",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5084,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-01-28T17:10:06-04:00",
          "utc": "1999-01-28T21:10:06Z",
          "ms": 917557806293.7622
        },
        "end": {
          "local": "1999-01-29T15:09:06-04:00",
          "utc": "1999-01-29T19:09:06Z",
          "ms": 917636946301.5599
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-28T17:10:06-04:00",
          "utc": "1999-01-28T21:10:06Z",
          "ms": 917557806293.7622
        },
        "end": {
          "local": "1999-01-29T15:09:06-04:00",
          "utc": "1999-01-29T19:09:06Z",
          "ms": 917636946301.5599
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-01-28",
          "window": {
            "start": {
              "local": "1999-01-28T18:34:50-04:00",
              "utc": "1999-01-28T22:34:50Z",
              "ms": 917562890204.6128
            },
            "end": {
              "local": "1999-01-28T20:13:32-04:00",
              "utc": "1999-01-29T00:13:32Z",
              "ms": 917568811825.0873
            }
          },
          "covered_min": 99,
          "window_min": 99,
          "qualifies": true
        },
        {
          "local_date": "1999-01-29",
          "window": {
            "start": {
              "local": "1999-01-29T18:35:13-04:00",
              "utc": "1999-01-29T22:35:13Z",
              "ms": 917649313282.0415
            },
            "end": {
              "local": "1999-01-29T20:13:52-04:00",
              "utc": "1999-01-30T00:13:52Z",
              "ms": 917655231514.4701
            }
          },
          "covered_min": 0,
          "window_min": 99,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 17:10 on Thu 28 Jan to 15:09 on Fri 29 Jan.",
          "fact": "1999-01-28T21:10:06Z → 1999-01-29T19:09:06Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:35–20:14 on the 28th, 18:35–20:14 on the 29th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 99 of 99 minutes on the 28th and 0 of 99 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 5084 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Thursday 28 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Thursday 28 January. Trayodaśī runs from 17:10 on Thu 28 Jan to 15:09 on Fri 29 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-01-28",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/maghi-purnima",
      "festival": "maghi-purnima",
      "name": "Māghī Pūrṇimā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-01-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 897,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-01-30T13:25:45-04:00",
          "utc": "1999-01-30T17:25:45Z",
          "ms": 917717145336.0492
        },
        "end": {
          "local": "1999-01-31T12:06:30-04:00",
          "utc": "1999-01-31T16:06:30Z",
          "ms": 917798790282.9618
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-01-30T13:25:45-04:00",
          "utc": "1999-01-30T17:25:45Z",
          "ms": 917717145336.0492
        },
        "end": {
          "local": "1999-01-31T12:06:30-04:00",
          "utc": "1999-01-31T16:06:30Z",
          "ms": 917798790282.9618
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-01-30",
          "window": {
            "start": {
              "local": "1999-01-30T12:21:18-04:00",
              "utc": "1999-01-30T16:21:18Z",
              "ms": 917713277886.9548
            },
            "end": {
              "local": "1999-01-30T13:09:18-04:00",
              "utc": "1999-01-30T17:09:18Z",
              "ms": 917716157886.9548
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-01-31",
          "window": {
            "start": {
              "local": "1999-01-31T12:21:27-04:00",
              "utc": "1999-01-31T16:21:27Z",
              "ms": 917799687131.9237
            },
            "end": {
              "local": "1999-01-31T13:09:27-04:00",
              "utc": "1999-01-31T17:09:27Z",
              "ms": 917802567131.9237
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 13:26 on Sat 30 Jan to 12:07 on Sun 31 Jan.",
          "fact": "1999-01-30T17:25:45Z → 1999-01-31T16:06:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:21–13:09 on the 30th, 12:21–13:09 on the 31st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 0 of 48 on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: paraviddha → second-day · margin 897 s"
        },
        {
          "step": "ruling",
          "text": "Māghī Pūrṇimā, Valencia, 1999: Sunday 31 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "maghi-purnima",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Maghi purnima (paraviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-01-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Māghī Pūrṇimā 1999 falls on Sunday 31 January. Pūrṇimā runs from 13:26 on Sat 30 Jan to 12:07 on Sun 31 Jan, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/maghi-purnima",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-02-03",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-02-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34830,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-02-03T11:27:38-04:00",
          "utc": "1999-02-03T15:27:38Z",
          "ms": 918055658270.7778
        },
        "end": {
          "local": "1999-02-04T12:30:36-04:00",
          "utc": "1999-02-04T16:30:36Z",
          "ms": 918145836019.393
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-02-03T11:27:38-04:00",
          "utc": "1999-02-03T15:27:38Z",
          "ms": 918055658270.7778
        },
        "end": {
          "local": "1999-02-04T12:30:36-04:00",
          "utc": "1999-02-04T16:30:36Z",
          "ms": 918145836019.393
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-02-03",
          "window": {
            "start": {
              "local": "1999-02-03T21:23:44-04:00",
              "utc": "1999-02-04T01:23:44Z",
              "ms": 918091423864.8431
            },
            "end": {
              "local": "1999-02-03T21:23:44-04:00",
              "utc": "1999-02-04T01:23:44Z",
              "ms": 918091423864.8431
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-02-04",
          "window": {
            "start": {
              "local": "1999-02-04T22:11:06-04:00",
              "utc": "1999-02-05T02:11:06Z",
              "ms": 918180665726.9398
            },
            "end": {
              "local": "1999-02-04T22:11:06-04:00",
              "utc": "1999-02-05T02:11:06Z",
              "ms": 918180665726.9398
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 11:28 on Wed 3 Feb to 12:31 on Thu 4 Feb.",
          "fact": "1999-02-03T15:27:38Z → 1999-02-04T16:30:36Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:24 on the 3rd and 22:11 on the 4th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 3rd and is not on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 34830 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Wednesday 3 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-02-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-02-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Wednesday 3 February. Caturthī runs from 11:28 on Wed 3 Feb to 12:31 on Thu 4 Feb and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-02-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-02-11",
      "festival": "ekadashi",
      "name": "Vijayā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-02-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13793,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-02-11T01:34:30-04:00",
          "utc": "1999-02-11T05:34:30Z",
          "ms": 918711269602.7188
        },
        "end": {
          "local": "1999-02-12T03:03:07-04:00",
          "utc": "1999-02-12T07:03:07Z",
          "ms": 918802986978.417
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-02-11T01:34:30-04:00",
          "utc": "1999-02-11T05:34:30Z",
          "ms": 918711269602.7188
        },
        "end": {
          "local": "1999-02-12T03:03:07-04:00",
          "utc": "1999-02-12T07:03:07Z",
          "ms": 918802986978.417
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-02-11",
          "window": {
            "start": {
              "local": "1999-02-11T06:53:15-04:00",
              "utc": "1999-02-11T10:53:15Z",
              "ms": 918730394799.847
            },
            "end": {
              "local": "1999-02-11T06:53:15-04:00",
              "utc": "1999-02-11T10:53:15Z",
              "ms": 918730394799.847
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-02-12",
          "window": {
            "start": {
              "local": "1999-02-12T06:53:00-04:00",
              "utc": "1999-02-12T10:53:00Z",
              "ms": 918816779947.9454
            },
            "end": {
              "local": "1999-02-12T06:53:00-04:00",
              "utc": "1999-02-12T10:53:00Z",
              "ms": 918816779947.9454
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-02-12",
        "start": {
          "local": "1999-02-12T13:56:55-04:00",
          "utc": "1999-02-12T17:56:55Z",
          "ms": 918842214957.3269
        },
        "end": {
          "local": "1999-02-12T16:18:13-04:00",
          "utc": "1999-02-12T20:18:13Z",
          "ms": 918850693293.7875
        },
        "basis": "aparahna",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-02-13T03:54:22-04:00",
          "utc": "1999-02-13T07:54:22Z",
          "ms": 918892461551.1909
        },
        "hari_vasara_end": {
          "local": "1999-02-12T09:15:56-04:00",
          "utc": "1999-02-12T13:15:56Z",
          "ms": 918825355621.6105
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 01:34 on Thu 11 Feb to 03:03 on Fri 12 Feb.",
          "fact": "1999-02-11T05:34:30Z → 1999-02-12T07:03:07Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:53 on the 11th and 06:53 on the 12th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 11th and is not on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 13793 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Ekādaśī, Valencia, 1999: Thursday 11 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-02-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-02-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vijayā Ekādaśī 1999 falls on Thursday 11 February. Ekādaśī runs from 01:34 on Thu 11 Feb to 03:03 on Fri 12 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-02-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-02-13",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-02-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27424,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-02-13T03:54:22-04:00",
          "utc": "1999-02-13T07:54:22Z",
          "ms": 918892461551.1909
        },
        "end": {
          "local": "1999-02-14T04:06:08-04:00",
          "utc": "1999-02-14T08:06:08Z",
          "ms": 918979567571.5792
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-02-13T03:54:22-04:00",
          "utc": "1999-02-13T07:54:22Z",
          "ms": 918892461551.1909
        },
        "end": {
          "local": "1999-02-14T04:06:08-04:00",
          "utc": "1999-02-14T08:06:08Z",
          "ms": 918979567571.5792
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-02-12",
          "window": {
            "start": {
              "local": "1999-02-12T18:39:32-04:00",
              "utc": "1999-02-12T22:39:32Z",
              "ms": 918859171630.2479
            },
            "end": {
              "local": "1999-02-12T20:17:17-04:00",
              "utc": "1999-02-13T00:17:17Z",
              "ms": 918865037308.6918
            }
          },
          "covered_min": 0,
          "window_min": 98,
          "qualifies": false
        },
        {
          "local_date": "1999-02-13",
          "window": {
            "start": {
              "local": "1999-02-13T18:39:45-04:00",
              "utc": "1999-02-13T22:39:45Z",
              "ms": 918945585463.6537
            },
            "end": {
              "local": "1999-02-13T20:17:27-04:00",
              "utc": "1999-02-14T00:17:27Z",
              "ms": 918951447084.9591
            }
          },
          "covered_min": 98,
          "window_min": 98,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 03:54 on Sat 13 Feb to 04:06 on Sun 14 Feb.",
          "fact": "1999-02-13T07:54:22Z → 1999-02-14T08:06:08Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:40–20:17 on the 12th, 18:40–20:17 on the 13th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 98 minutes on the 12th and 98 of 98 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 27424 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Saturday 13 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-02-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-02-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Saturday 13 February. Trayodaśī runs from 03:54 on Sat 13 Feb to 04:06 on Sun 14 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-02-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/maha-shivaratri",
      "festival": "maha-shivaratri",
      "name": "Mahāśivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-02-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8975,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-02-14T04:06:08-04:00",
          "utc": "1999-02-14T08:06:08Z",
          "ms": 918979567571.5792
        },
        "end": {
          "local": "1999-02-15T03:39:39-04:00",
          "utc": "1999-02-15T07:39:39Z",
          "ms": 919064379258.5859
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-02-14T04:06:08-04:00",
          "utc": "1999-02-14T08:06:08Z",
          "ms": 918979567571.5792
        },
        "end": {
          "local": "1999-02-15T03:39:39-04:00",
          "utc": "1999-02-15T07:39:39Z",
          "ms": 919064379258.5859
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-02-13",
          "window": {
            "start": {
              "local": "1999-02-14T00:22:07-04:00",
              "utc": "1999-02-14T04:22:07Z",
              "ms": 918966126543.5488
            },
            "end": {
              "local": "1999-02-14T01:10:07-04:00",
              "utc": "1999-02-14T05:10:07Z",
              "ms": 918969006543.5488
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-02-14",
          "window": {
            "start": {
              "local": "1999-02-15T00:22:04-04:00",
              "utc": "1999-02-15T04:22:04Z",
              "ms": 919052524432.3818
            },
            "end": {
              "local": "1999-02-15T01:10:04-04:00",
              "utc": "1999-02-15T05:10:04Z",
              "ms": 919055404432.3818
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 04:06 on Sun 14 Feb to 03:40 on Mon 15 Feb.",
          "fact": "1999-02-14T08:06:08Z → 1999-02-15T07:39:39Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:22–01:10 on the 13th, 00:22–01:10 on the 14th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: disputed → only-day · margin 8975 s"
        },
        {
          "step": "ruling",
          "text": "Mahāśivarātri, Valencia, 1999: Sunday 14 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "maha-shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day"
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "disputed",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-02-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-02-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Mahāśivarātri 1999 falls on Sunday 14 February. Caturdaśī runs from 04:06 on Sun 14 Feb to 03:40 on Mon 15 Feb and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/maha-shivaratri",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vinayaka-chaturthi?on=1999-02-19",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-02-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20250,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-02-18T21:06:27-04:00",
          "utc": "1999-02-19T01:06:27Z",
          "ms": 919386387465.7258
        },
        "end": {
          "local": "1999-02-19T18:47:24-04:00",
          "utc": "1999-02-19T22:47:24Z",
          "ms": 919464444177.5453
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-02-18T21:06:27-04:00",
          "utc": "1999-02-19T01:06:27Z",
          "ms": 919386387465.7258
        },
        "end": {
          "local": "1999-02-19T18:47:24-04:00",
          "utc": "1999-02-19T22:47:24Z",
          "ms": 919464444177.5453
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-02-18",
          "window": {
            "start": {
              "local": "1999-02-18T12:21:59-04:00",
              "utc": "1999-02-18T16:21:59Z",
              "ms": 919354919197.9822
            },
            "end": {
              "local": "1999-02-18T13:09:59-04:00",
              "utc": "1999-02-18T17:09:59Z",
              "ms": 919357799197.9822
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-02-19",
          "window": {
            "start": {
              "local": "1999-02-19T12:21:54-04:00",
              "utc": "1999-02-19T16:21:54Z",
              "ms": 919441313943.9124
            },
            "end": {
              "local": "1999-02-19T13:09:54-04:00",
              "utc": "1999-02-19T17:09:54Z",
              "ms": 919444193943.9124
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 21:06 on Thu 18 Feb to 18:47 on Fri 19 Feb.",
          "fact": "1999-02-19T01:06:27Z → 1999-02-19T22:47:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 18th, 12:22–13:10 on the 19th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 20250 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Valencia, 1999: Friday 19 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-02-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-02-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vināyaka Caturthī 1999 falls on Friday 19 February. Caturthī runs from 21:06 on Thu 18 Feb to 18:47 on Fri 19 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vinayaka-chaturthi?on=1999-02-19",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-02-25",
      "festival": "ekadashi",
      "name": "Āmalakī Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-02-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2355,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-02-25T06:09:17-04:00",
          "utc": "1999-02-25T10:09:17Z",
          "ms": 919937356824.7375
        },
        "end": {
          "local": "1999-02-26T04:48:03-04:00",
          "utc": "1999-02-26T08:48:03Z",
          "ms": 920018883017.463
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-02-25T06:09:17-04:00",
          "utc": "1999-02-25T10:09:17Z",
          "ms": 919937356824.7375
        },
        "end": {
          "local": "1999-02-26T04:48:03-04:00",
          "utc": "1999-02-26T08:48:03Z",
          "ms": 920018883017.463
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-02-25",
          "window": {
            "start": {
              "local": "1999-02-25T06:48:32-04:00",
              "utc": "1999-02-25T10:48:32Z",
              "ms": 919939711806.2357
            },
            "end": {
              "local": "1999-02-25T06:48:32-04:00",
              "utc": "1999-02-25T10:48:32Z",
              "ms": 919939711806.2357
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-02-26",
          "window": {
            "start": {
              "local": "1999-02-26T06:48:06-04:00",
              "utc": "1999-02-26T10:48:06Z",
              "ms": 920026085951.0342
            },
            "end": {
              "local": "1999-02-26T06:48:06-04:00",
              "utc": "1999-02-26T10:48:06Z",
              "ms": 920026085951.0342
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-02-26",
        "start": {
          "local": "1999-02-26T13:56:21-04:00",
          "utc": "1999-02-26T17:56:21Z",
          "ms": 920051781240.3589
        },
        "end": {
          "local": "1999-02-26T16:19:06-04:00",
          "utc": "1999-02-26T20:19:06Z",
          "ms": 920060346336.8004
        },
        "basis": "aparahna",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-02-27T03:46:07-04:00",
          "utc": "1999-02-27T07:46:07Z",
          "ms": 920101566525.6823
        },
        "hari_vasara_end": {
          "local": "1999-02-26T10:32:34-04:00",
          "utc": "1999-02-26T14:32:34Z",
          "ms": 920039553894.5178
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:09 on Thu 25 Feb to 04:48 on Fri 26 Feb.",
          "fact": "1999-02-25T10:09:17Z → 1999-02-26T08:48:03Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:49 on the 25th and 06:48 on the 26th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 25th and is not on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 2355 s"
        },
        {
          "step": "ruling",
          "text": "Āmalakī Ekādaśī, Valencia, 1999: Thursday 25 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-02-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-02-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Āmalakī Ekādaśī 1999 falls on Thursday 25 February. Ekādaśī runs from 06:09 on Thu 25 Feb to 04:48 on Fri 26 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-02-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-02-27",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-02-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24419,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-02-27T03:46:07-04:00",
          "utc": "1999-02-27T07:46:07Z",
          "ms": 920101566525.6823
        },
        "end": {
          "local": "1999-02-28T03:05:39-04:00",
          "utc": "1999-02-28T07:05:39Z",
          "ms": 920185538573.4523
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-02-27T03:46:07-04:00",
          "utc": "1999-02-27T07:46:07Z",
          "ms": 920101566525.6823
        },
        "end": {
          "local": "1999-02-28T03:05:39-04:00",
          "utc": "1999-02-28T07:05:39Z",
          "ms": 920185538573.4523
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-02-26",
          "window": {
            "start": {
              "local": "1999-02-26T18:41:51-04:00",
              "utc": "1999-02-26T22:41:51Z",
              "ms": 920068911433.242
            },
            "end": {
              "local": "1999-02-26T20:18:38-04:00",
              "utc": "1999-02-27T00:18:38Z",
              "ms": 920074717835.3811
            }
          },
          "covered_min": 0,
          "window_min": 97,
          "qualifies": false
        },
        {
          "local_date": "1999-02-27",
          "window": {
            "start": {
              "local": "1999-02-27T18:41:57-04:00",
              "utc": "1999-02-27T22:41:57Z",
              "ms": 920155317259.7545
            },
            "end": {
              "local": "1999-02-27T20:18:39-04:00",
              "utc": "1999-02-28T00:18:39Z",
              "ms": 920161119268.5132
            }
          },
          "covered_min": 97,
          "window_min": 97,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 03:46 on Sat 27 Feb to 03:06 on Sun 28 Feb.",
          "fact": "1999-02-27T07:46:07Z → 1999-02-28T07:05:39Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:42–20:19 on the 26th, 18:42–20:19 on the 27th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 97 minutes on the 26th and 97 of 97 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 24419 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Saturday 27 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-02-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-02-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Saturday 27 February. Trayodaśī runs from 03:46 on Sat 27 Feb to 03:06 on Sun 28 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-02-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/holika-dahana",
      "festival": "holika-dahana",
      "name": "Holikā Dahana",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29216,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-03-01T02:48:59-04:00",
          "utc": "1999-03-01T06:48:59Z",
          "ms": 920270938882.9066
        },
        "end": {
          "local": "1999-03-02T02:58:27-04:00",
          "utc": "1999-03-02T06:58:27Z",
          "ms": 920357907125.1583
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-01T02:48:59-04:00",
          "utc": "1999-03-01T06:48:59Z",
          "ms": 920270938882.9066
        },
        "end": {
          "local": "1999-03-02T02:58:27-04:00",
          "utc": "1999-03-02T06:58:27Z",
          "ms": 920357907125.1583
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1999-02-28",
          "window": {
            "start": {
              "local": "1999-02-28T16:19:05-04:00",
              "utc": "1999-02-28T20:19:05Z",
              "ms": 920233144547.3378
            },
            "end": {
              "local": "1999-02-28T18:42:03-04:00",
              "utc": "1999-02-28T22:42:03Z",
              "ms": 920241722602.8112
            }
          },
          "covered_min": 0,
          "window_min": 143,
          "qualifies": false
        },
        {
          "local_date": "1999-03-01",
          "window": {
            "start": {
              "local": "1999-03-01T16:19:03-04:00",
              "utc": "1999-03-01T20:19:03Z",
              "ms": 920319542905.4508
            },
            "end": {
              "local": "1999-03-01T18:42:07-04:00",
              "utc": "1999-03-01T22:42:07Z",
              "ms": 920328127480.6996
            }
          },
          "covered_min": 143,
          "window_min": 143,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 02:49 on Mon 1 Mar to 02:58 on Tue 2 Mar.",
          "fact": "1999-03-01T06:48:59Z → 1999-03-02T06:58:27Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:19–18:42 on the 28th, 16:19–18:42 on the 1st.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 143 minutes on the 28th and 143 of 143 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one late afternoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29216 s"
        },
        {
          "step": "ruling",
          "text": "Holikā Dahana, Valencia, 1999: Monday 1 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "holika-dahana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana."
          }
        ],
        "not_evaluated": "The hour the row gives for the rite (\"it should be observed on second half of purnima at night\") is not tested: sāyāhna alone settles the day.",
        "kaala": "sayahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Holikā Dahana 1999 falls on Monday 1 March. Pūrṇimā runs from 02:49 on Mon 1 Mar to 02:58 on Tue 2 Mar and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/valencia/festivals/1999/holika-dahana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/holi",
      "festival": "holi",
      "name": "Holī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29216,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-03-01T02:48:59-04:00",
          "utc": "1999-03-01T06:48:59Z",
          "ms": 920270938882.9066
        },
        "end": {
          "local": "1999-03-02T02:58:27-04:00",
          "utc": "1999-03-02T06:58:27Z",
          "ms": 920357907125.1583
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-01T02:48:59-04:00",
          "utc": "1999-03-01T06:48:59Z",
          "ms": 920270938882.9066
        },
        "end": {
          "local": "1999-03-02T02:58:27-04:00",
          "utc": "1999-03-02T06:58:27Z",
          "ms": 920357907125.1583
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1999-02-28",
          "window": {
            "start": {
              "local": "1999-02-28T16:19:05-04:00",
              "utc": "1999-02-28T20:19:05Z",
              "ms": 920233144547.3378
            },
            "end": {
              "local": "1999-02-28T18:42:03-04:00",
              "utc": "1999-02-28T22:42:03Z",
              "ms": 920241722602.8112
            }
          },
          "covered_min": 0,
          "window_min": 143,
          "qualifies": false
        },
        {
          "local_date": "1999-03-01",
          "window": {
            "start": {
              "local": "1999-03-01T16:19:03-04:00",
              "utc": "1999-03-01T20:19:03Z",
              "ms": 920319542905.4508
            },
            "end": {
              "local": "1999-03-01T18:42:07-04:00",
              "utc": "1999-03-01T22:42:07Z",
              "ms": 920328127480.6996
            }
          },
          "covered_min": 143,
          "window_min": 143,
          "qualifies": true
        }
      ],
      "follows": {
        "festival": "holika-dahana",
        "name": "Holikā Dahana",
        "local_date": "1999-03-01",
        "days": 1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 02:49 on Mon 1 Mar to 02:58 on Tue 2 Mar.",
          "fact": "1999-03-01T06:48:59Z → 1999-03-02T06:58:27Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:19–18:42 on the 28th, 16:19–18:42 on the 1st.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 143 minutes on the 28th and 143 of 143 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one late afternoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29216 s"
        },
        {
          "step": "counted",
          "text": "Holī is kept the day after Holikā Dahana: Monday 1 March is the day taken above.",
          "fact": "follows: holika-dahana + 1 d"
        },
        {
          "step": "ruling",
          "text": "Holī, Valencia, 1999: Tuesday 2 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "holi",
        "follows": {
          "festival": "holika-dahana",
          "days": 1
        },
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana."
          }
        ],
        "kaala": "sayahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Holī 1999 falls on Tuesday 2 March. It is kept the day after Holikā Dahana, which falls on Monday 1 March. Pūrṇimā runs from 02:49 on Mon 1 Mar to 02:58 on Tue 2 Mar and covers all of sāyāhna on the 1st.",
      "cite": "https://ahargana.org/valencia/festivals/1999/holi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vasantotsava",
      "festival": "vasantotsava",
      "name": "Vasantotsava",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11386,
      "anga": {
        "type": "tithi",
        "index": 15,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-03-02T02:58:27-04:00",
          "utc": "1999-03-02T06:58:27Z",
          "ms": 920357907125.1583
        },
        "end": {
          "local": "1999-03-03T03:36:01-04:00",
          "utc": "1999-03-03T07:36:01Z",
          "ms": 920446561216.7366
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-02T02:58:27-04:00",
          "utc": "1999-03-02T06:58:27Z",
          "ms": 920357907125.1583
        },
        "end": {
          "local": "1999-03-03T03:36:01-04:00",
          "utc": "1999-03-03T07:36:01Z",
          "ms": 920446561216.7366
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-03-02",
          "window": {
            "start": {
              "local": "1999-03-02T06:46:16-04:00",
              "utc": "1999-03-02T10:46:16Z",
              "ms": 920371576311.5781
            },
            "end": {
              "local": "1999-03-02T06:46:16-04:00",
              "utc": "1999-03-02T10:46:16Z",
              "ms": 920371576311.5781
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-03-03",
          "window": {
            "start": {
              "local": "1999-03-03T06:45:47-04:00",
              "utc": "1999-03-03T10:45:47Z",
              "ms": 920457947472.1963
            },
            "end": {
              "local": "1999-03-03T06:45:47-04:00",
              "utc": "1999-03-03T10:45:47Z",
              "ms": 920457947472.1963
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 02:58 on Tue 2 Mar to 03:36 on Wed 3 Mar.",
          "fact": "1999-03-02T06:58:27Z → 1999-03-03T07:36:01Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:46 on the 2nd and 06:46 on the 3rd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be current at sunrise. It is on the 2nd and is not on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 11386 s"
        },
        {
          "step": "ruling",
          "text": "Vasantotsava, Valencia, 1999: Tuesday 2 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vasantotsava",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day)."
          }
        ],
        "kaala": "sunrise",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vasantotsava 1999 falls on Tuesday 2 March. Pratipadā runs from 02:58 on Tue 2 Mar to 03:36 on Wed 3 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vasantotsava",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-03-05",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34083,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-03-05T06:17:49-04:00",
          "utc": "1999-03-05T10:17:49Z",
          "ms": 920629069237.464
        },
        "end": {
          "local": "1999-03-06T08:18:11-04:00",
          "utc": "1999-03-06T12:18:11Z",
          "ms": 920722690977.1301
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-05T06:17:49-04:00",
          "utc": "1999-03-05T10:17:49Z",
          "ms": 920629069237.464
        },
        "end": {
          "local": "1999-03-06T08:18:11-04:00",
          "utc": "1999-03-06T12:18:11Z",
          "ms": 920722690977.1301
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-03-04",
          "window": {
            "start": {
              "local": "1999-03-04T20:49:46-04:00",
              "utc": "1999-03-05T00:49:46Z",
              "ms": 920594986170.5966
            },
            "end": {
              "local": "1999-03-04T20:49:46-04:00",
              "utc": "1999-03-05T00:49:46Z",
              "ms": 920594986170.5966
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-03-05",
          "window": {
            "start": {
              "local": "1999-03-05T21:36:03-04:00",
              "utc": "1999-03-06T01:36:03Z",
              "ms": 920684163262.0883
            },
            "end": {
              "local": "1999-03-05T21:36:03-04:00",
              "utc": "1999-03-06T01:36:03Z",
              "ms": 920684163262.0883
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:18 on Fri 5 Mar to 08:18 on Sat 6 Mar.",
          "fact": "1999-03-05T10:17:49Z → 1999-03-06T12:18:11Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:50 on the 4th and 21:36 on the 5th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 4th and is on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 34083 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Friday 5 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Friday 5 March. Caturthī runs from 06:18 on Fri 5 Mar to 08:18 on Sat 6 Mar and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-03-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shitalashtami",
      "festival": "shitalashtami",
      "name": "Śītalāṣṭamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8742,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-03-09T15:32:20-04:00",
          "utc": "1999-03-09T19:32:20Z",
          "ms": 921007940454.4563
        },
        "end": {
          "local": "1999-03-10T17:42:30-04:00",
          "utc": "1999-03-10T21:42:30Z",
          "ms": 921102149791.701
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-09T15:32:20-04:00",
          "utc": "1999-03-09T19:32:20Z",
          "ms": 921007940454.4563
        },
        "end": {
          "local": "1999-03-10T17:42:30-04:00",
          "utc": "1999-03-10T21:42:30Z",
          "ms": 921102149791.701
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-09",
          "window": {
            "start": {
              "local": "1999-03-09T12:18:38-04:00",
              "utc": "1999-03-09T16:18:38Z",
              "ms": 920996318185.5073
            },
            "end": {
              "local": "1999-03-09T13:06:38-04:00",
              "utc": "1999-03-09T17:06:38Z",
              "ms": 920999198185.5073
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-10",
          "window": {
            "start": {
              "local": "1999-03-10T12:18:23-04:00",
              "utc": "1999-03-10T16:18:23Z",
              "ms": 921082702965.0775
            },
            "end": {
              "local": "1999-03-10T13:06:23-04:00",
              "utc": "1999-03-10T17:06:23Z",
              "ms": 921085582965.0775
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 15:32 on Tue 9 Mar to 17:42 on Wed 10 Mar.",
          "fact": "1999-03-09T19:32:20Z → 1999-03-10T21:42:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:19–13:07 on the 9th, 12:18–13:06 on the 10th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 8742 s"
        },
        {
          "step": "ruling",
          "text": "Śītalāṣṭamī, Valencia, 1999: Wednesday 10 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shitalashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Sitalastami, (purvaviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śītalāṣṭamī 1999 falls on Wednesday 10 March. Aṣṭamī runs from 15:32 on Tue 9 Mar to 17:42 on Wed 10 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shitalashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-03-13",
      "festival": "ekadashi",
      "name": "Pāpamocanī Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35640,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-03-12T20:27:25-04:00",
          "utc": "1999-03-13T00:27:25Z",
          "ms": 921284844898.9974
        },
        "end": {
          "local": "1999-03-13T20:46:01-04:00",
          "utc": "1999-03-14T00:46:01Z",
          "ms": 921372360879.093
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-12T20:27:25-04:00",
          "utc": "1999-03-13T00:27:25Z",
          "ms": 921284844898.9974
        },
        "end": {
          "local": "1999-03-13T20:46:01-04:00",
          "utc": "1999-03-14T00:46:01Z",
          "ms": 921372360879.093
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-03-13",
          "window": {
            "start": {
              "local": "1999-03-13T06:40:34-04:00",
              "utc": "1999-03-13T10:40:34Z",
              "ms": 921321634451.0029
            },
            "end": {
              "local": "1999-03-13T06:40:34-04:00",
              "utc": "1999-03-13T10:40:34Z",
              "ms": 921321634451.0029
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-03-14",
          "window": {
            "start": {
              "local": "1999-03-14T06:40:01-04:00",
              "utc": "1999-03-14T10:40:01Z",
              "ms": 921408001206.1376
            },
            "end": {
              "local": "1999-03-14T06:40:01-04:00",
              "utc": "1999-03-14T10:40:01Z",
              "ms": 921408001206.1376
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-03-14",
        "start": {
          "local": "1999-03-14T06:40:01-04:00",
          "utc": "1999-03-14T10:40:01Z",
          "ms": 921408001206.1376
        },
        "end": {
          "local": "1999-03-14T09:04:32-04:00",
          "utc": "1999-03-14T13:04:32Z",
          "ms": 921416672365.6211
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-03-14T20:18:00-04:00",
          "utc": "1999-03-15T00:18:00Z",
          "ms": 921457079700.3799
        },
        "hari_vasara_end": {
          "local": "1999-03-14T02:39:01-04:00",
          "utc": "1999-03-14T06:39:01Z",
          "ms": 921393540584.4148
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 20:27 on Fri 12 Mar to 20:46 on Sat 13 Mar.",
          "fact": "1999-03-13T00:27:25Z → 1999-03-14T00:46:01Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:41 on the 13th and 06:40 on the 14th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 13th and is not on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 35640 s"
        },
        {
          "step": "ruling",
          "text": "Pāpamocanī Ekādaśī, Valencia, 1999: Saturday 13 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Pāpamocanī Ekādaśī 1999 falls on Saturday 13 March. Ekādaśī runs from 20:27 on Fri 12 Mar to 20:46 on Sat 13 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-03-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-03-15",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-15",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin",
        "tie-break-unstated"
      ],
      "boundary_margin_s": 12,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-03-14T20:18:00-04:00",
          "utc": "1999-03-15T00:18:00Z",
          "ms": 921457079700.3799
        },
        "end": {
          "local": "1999-03-15T19:05:15-04:00",
          "utc": "1999-03-15T23:05:15Z",
          "ms": 921539115148.7944
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-14T20:18:00-04:00",
          "utc": "1999-03-15T00:18:00Z",
          "ms": 921457079700.3799
        },
        "end": {
          "local": "1999-03-15T19:05:15-04:00",
          "utc": "1999-03-15T23:05:15Z",
          "ms": 921539115148.7944
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-03-14",
          "window": {
            "start": {
              "local": "1999-03-14T18:42:37-04:00",
              "utc": "1999-03-14T22:42:37Z",
              "ms": 921451357003.5554
            },
            "end": {
              "local": "1999-03-14T20:18:12-04:00",
              "utc": "1999-03-15T00:18:12Z",
              "ms": 921457091762.6871
            }
          },
          "covered_min": 0,
          "window_min": 96,
          "qualifies": true
        },
        {
          "local_date": "1999-03-15",
          "window": {
            "start": {
              "local": "1999-03-15T18:42:37-04:00",
              "utc": "1999-03-15T22:42:37Z",
              "ms": 921537757281.7703
            },
            "end": {
              "local": "1999-03-15T20:18:08-04:00",
              "utc": "1999-03-16T00:18:08Z",
              "ms": 921543487503.3936
            }
          },
          "covered_min": 23,
          "window_min": 96,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 20:18 on Sun 14 Mar to 19:05 on Mon 15 Mar.",
          "fact": "1999-03-15T00:18:00Z → 1999-03-15T23:05:15Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:18 on the 14th, 18:43–20:18 on the 15th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 96 minutes on the 14th and 23 of 96 on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 12 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Monday 15 March.",
          "fact": "confidence: boundary (margin, tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-15",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-14",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Monday 15 March. Trayodaśī runs from 20:18 on Sun 14 Mar to 19:05 on Mon 15 Mar and covers 23 of 96 minutes of pradoṣa that evening. It also reaches the previous evening for 0 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 0 min 12 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-03-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-03-15",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18690,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-03-15T19:05:15-04:00",
          "utc": "1999-03-15T23:05:15Z",
          "ms": 921539115148.7944
        },
        "end": {
          "local": "1999-03-16T17:12:49-04:00",
          "utc": "1999-03-16T21:12:49Z",
          "ms": 921618768685.7852
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-15T19:05:15-04:00",
          "utc": "1999-03-15T23:05:15Z",
          "ms": 921539115148.7944
        },
        "end": {
          "local": "1999-03-16T17:12:49-04:00",
          "utc": "1999-03-16T21:12:49Z",
          "ms": 921618768685.7852
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-03-15",
          "window": {
            "start": {
              "local": "1999-03-16T00:16:46-04:00",
              "utc": "1999-03-16T04:16:46Z",
              "ms": 921557805612.8577
            },
            "end": {
              "local": "1999-03-16T01:04:46-04:00",
              "utc": "1999-03-16T05:04:46Z",
              "ms": 921560685612.8577
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-03-16",
          "window": {
            "start": {
              "local": "1999-03-17T00:16:29-04:00",
              "utc": "1999-03-17T04:16:29Z",
              "ms": 921644188660.2722
            },
            "end": {
              "local": "1999-03-17T01:04:29-04:00",
              "utc": "1999-03-17T05:04:29Z",
              "ms": 921647068660.2722
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 19:05 on Mon 15 Mar to 17:13 on Tue 16 Mar.",
          "fact": "1999-03-15T23:05:15Z → 1999-03-16T21:12:49Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:17–01:05 on the 15th, 00:16–01:04 on the 16th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 18690 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Monday 15 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Monday 15 March. Caturdaśī runs from 19:05 on Mon 15 Mar to 17:13 on Tue 16 Mar and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-03-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/navaratra-arambha-caitra",
      "festival": "navaratra-arambha-caitra",
      "name": "Navarātrārambha (Caitra)",
      "everyday": "Chaitra Navratri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1015,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-03-17T14:47:56-04:00",
          "utc": "1999-03-17T18:47:56Z",
          "ms": 921696475864.9741
        },
        "end": {
          "local": "1999-03-18T11:59:16-04:00",
          "utc": "1999-03-18T15:59:16Z",
          "ms": 921772755895.3011
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-17T14:47:56-04:00",
          "utc": "1999-03-17T18:47:56Z",
          "ms": 921696475864.9741
        },
        "end": {
          "local": "1999-03-18T11:59:16-04:00",
          "utc": "1999-03-18T15:59:16Z",
          "ms": 921772755895.3011
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-17",
          "window": {
            "start": {
              "local": "1999-03-17T12:16:29-04:00",
              "utc": "1999-03-17T16:16:29Z",
              "ms": 921687388600.2683
            },
            "end": {
              "local": "1999-03-17T13:04:29-04:00",
              "utc": "1999-03-17T17:04:29Z",
              "ms": 921690268600.2683
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-18",
          "window": {
            "start": {
              "local": "1999-03-18T12:16:11-04:00",
              "utc": "1999-03-18T16:16:11Z",
              "ms": 921773771358.7112
            },
            "end": {
              "local": "1999-03-18T13:04:11-04:00",
              "utc": "1999-03-18T17:04:11Z",
              "ms": 921776651358.7112
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 14:48 on Wed 17 Mar to 11:59 on Thu 18 Mar.",
          "fact": "1999-03-17T18:47:56Z → 1999-03-18T15:59:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:16–13:04 on the 17th, 12:16–13:04 on the 18th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 0 of 48 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: paraviddha → second-day · margin 1015 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha (Caitra), Valencia, 1999: Thursday 18 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "navaratra-arambha-caitra",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Navaratrarambha (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Navarātrārambha (Caitra) (Chaitra Navratri) 1999 falls on Thursday 18 March. Pratipadā runs from 14:48 on Wed 17 Mar to 11:59 on Thu 18 Mar, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/navaratra-arambha-caitra",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/gauri-tritiya",
      "festival": "gauri-tritiya",
      "name": "Gaurī Tṛtīyā",
      "everyday": "Gangaur",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11985,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-03-19T08:56:09-04:00",
          "utc": "1999-03-19T12:56:09Z",
          "ms": 921848168998.649
        },
        "end": {
          "local": "1999-03-20T05:48:01-04:00",
          "utc": "1999-03-20T09:48:01Z",
          "ms": 921923281443.1925
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-19T08:56:09-04:00",
          "utc": "1999-03-19T12:56:09Z",
          "ms": 921848168998.649
        },
        "end": {
          "local": "1999-03-20T05:48:01-04:00",
          "utc": "1999-03-20T09:48:01Z",
          "ms": 921923281443.1925
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-19",
          "window": {
            "start": {
              "local": "1999-03-19T12:15:54-04:00",
              "utc": "1999-03-19T16:15:54Z",
              "ms": 921860153939.9899
            },
            "end": {
              "local": "1999-03-19T13:03:54-04:00",
              "utc": "1999-03-19T17:03:54Z",
              "ms": 921863033939.9899
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-03-20",
          "window": {
            "start": {
              "local": "1999-03-20T12:15:36-04:00",
              "utc": "1999-03-20T16:15:36Z",
              "ms": 921946536359.8413
            },
            "end": {
              "local": "1999-03-20T13:03:36-04:00",
              "utc": "1999-03-20T17:03:36Z",
              "ms": 921949416359.8413
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 08:56 on Fri 19 Mar to 05:48 on Sat 20 Mar.",
          "fact": "1999-03-19T12:56:09Z → 1999-03-20T09:48:01Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:16–13:04 on the 19th, 12:16–13:04 on the 20th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 11985 s"
        },
        {
          "step": "ruling",
          "text": "Gaurī Tṛtīyā, Valencia, 1999: Friday 19 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "gauri-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Gaurī Tṛtīyā (Gangaur) 1999 falls on Friday 19 March. Tṛtīyā runs from 08:56 on Fri 19 Mar to 05:48 on Sat 20 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/gauri-tritiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/saubhagya-shayana-vrata",
      "festival": "saubhagya-shayana-vrata",
      "name": "Saubhāgya Śayana Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11985,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-03-19T08:56:09-04:00",
          "utc": "1999-03-19T12:56:09Z",
          "ms": 921848168998.649
        },
        "end": {
          "local": "1999-03-20T05:48:01-04:00",
          "utc": "1999-03-20T09:48:01Z",
          "ms": 921923281443.1925
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-19T08:56:09-04:00",
          "utc": "1999-03-19T12:56:09Z",
          "ms": 921848168998.649
        },
        "end": {
          "local": "1999-03-20T05:48:01-04:00",
          "utc": "1999-03-20T09:48:01Z",
          "ms": 921923281443.1925
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-19",
          "window": {
            "start": {
              "local": "1999-03-19T12:15:54-04:00",
              "utc": "1999-03-19T16:15:54Z",
              "ms": 921860153939.9899
            },
            "end": {
              "local": "1999-03-19T13:03:54-04:00",
              "utc": "1999-03-19T17:03:54Z",
              "ms": 921863033939.9899
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-03-20",
          "window": {
            "start": {
              "local": "1999-03-20T12:15:36-04:00",
              "utc": "1999-03-20T16:15:36Z",
              "ms": 921946536359.8413
            },
            "end": {
              "local": "1999-03-20T13:03:36-04:00",
              "utc": "1999-03-20T17:03:36Z",
              "ms": 921949416359.8413
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 08:56 on Fri 19 Mar to 05:48 on Sat 20 Mar.",
          "fact": "1999-03-19T12:56:09Z → 1999-03-20T09:48:01Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:16–13:04 on the 19th, 12:16–13:04 on the 20th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 11985 s"
        },
        {
          "step": "ruling",
          "text": "Saubhāgya Śayana Vrata, Valencia, 1999: Friday 19 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "saubhagya-shayana-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saubhāgya Śayana Vrata 1999 falls on Friday 19 March. Tṛtīyā runs from 08:56 on Fri 19 Mar to 05:48 on Sat 20 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/saubhagya-shayana-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vinayaka-chaturthi?on=1999-03-20",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23255,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-03-20T05:48:01-04:00",
          "utc": "1999-03-20T09:48:01Z",
          "ms": 921923281443.1925
        },
        "end": {
          "local": "1999-03-21T02:43:56-04:00",
          "utc": "1999-03-21T06:43:56Z",
          "ms": 921998635977.4628
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-20T05:48:01-04:00",
          "utc": "1999-03-20T09:48:01Z",
          "ms": 921923281443.1925
        },
        "end": {
          "local": "1999-03-21T02:43:56-04:00",
          "utc": "1999-03-21T06:43:56Z",
          "ms": 921998635977.4628
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-20",
          "window": {
            "start": {
              "local": "1999-03-20T12:15:36-04:00",
              "utc": "1999-03-20T16:15:36Z",
              "ms": 921946536359.8413
            },
            "end": {
              "local": "1999-03-20T13:03:36-04:00",
              "utc": "1999-03-20T17:03:36Z",
              "ms": 921949416359.8413
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-03-21",
          "window": {
            "start": {
              "local": "1999-03-21T12:15:19-04:00",
              "utc": "1999-03-21T16:15:19Z",
              "ms": 922032918634.5906
            },
            "end": {
              "local": "1999-03-21T13:03:19-04:00",
              "utc": "1999-03-21T17:03:19Z",
              "ms": 922035798634.5906
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 05:48 on Sat 20 Mar to 02:44 on Sun 21 Mar.",
          "fact": "1999-03-20T09:48:01Z → 1999-03-21T06:43:56Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:16–13:04 on the 20th, 12:15–13:03 on the 21st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 23255 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Valencia, 1999: Saturday 20 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vināyaka Caturthī 1999 falls on Saturday 20 March. Caturthī runs from 05:48 on Sat 20 Mar to 02:44 on Sun 21 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vinayaka-chaturthi?on=1999-03-20",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/lakshmi-panchami",
      "festival": "lakshmi-panchami",
      "name": "Lakṣmī Pañcamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34283,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-03-21T02:43:56-04:00",
          "utc": "1999-03-21T06:43:56Z",
          "ms": 921998635977.4628
        },
        "end": {
          "local": "1999-03-21T23:52:05-04:00",
          "utc": "1999-03-22T03:52:05Z",
          "ms": 922074725313.717
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-21T02:43:56-04:00",
          "utc": "1999-03-21T06:43:56Z",
          "ms": 921998635977.4628
        },
        "end": {
          "local": "1999-03-21T23:52:05-04:00",
          "utc": "1999-03-22T03:52:05Z",
          "ms": 922074725313.717
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-21",
          "window": {
            "start": {
              "local": "1999-03-21T12:15:19-04:00",
              "utc": "1999-03-21T16:15:19Z",
              "ms": 922032918634.5906
            },
            "end": {
              "local": "1999-03-21T13:03:19-04:00",
              "utc": "1999-03-21T17:03:19Z",
              "ms": 922035798634.5906
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-03-22",
          "window": {
            "start": {
              "local": "1999-03-22T12:15:01-04:00",
              "utc": "1999-03-22T16:15:01Z",
              "ms": 922119300781.4767
            },
            "end": {
              "local": "1999-03-22T13:03:01-04:00",
              "utc": "1999-03-22T17:03:01Z",
              "ms": 922122180781.4767
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 02:44 on Sun 21 Mar to 23:52 on Sun 21 Mar.",
          "fact": "1999-03-21T06:43:56Z → 1999-03-22T03:52:05Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 21st, 12:15–13:03 on the 22nd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 34283 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pañcamī, Valencia, 1999: Sunday 21 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "lakshmi-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Lakṣmī Pañcamī 1999 falls on Sunday 21 March. Pañcamī runs from 02:44 on Sun 21 Mar to 23:52 on Sun 21 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/lakshmi-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/bhavani-utpatti",
      "festival": "bhavani-utpatti",
      "name": "Bhavānī Utpatti",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16147,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-03-23T19:11:26-04:00",
          "utc": "1999-03-23T23:11:26Z",
          "ms": 922230685559.8624
        },
        "end": {
          "local": "1999-03-24T17:31:31-04:00",
          "utc": "1999-03-24T21:31:31Z",
          "ms": 922311091372.3479
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-23T19:11:26-04:00",
          "utc": "1999-03-23T23:11:26Z",
          "ms": 922230685559.8624
        },
        "end": {
          "local": "1999-03-24T17:31:31-04:00",
          "utc": "1999-03-24T21:31:31Z",
          "ms": 922311091372.3479
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-23",
          "window": {
            "start": {
              "local": "1999-03-23T12:14:43-04:00",
              "utc": "1999-03-23T16:14:43Z",
              "ms": 922205682818.8394
            },
            "end": {
              "local": "1999-03-23T13:02:43-04:00",
              "utc": "1999-03-23T17:02:43Z",
              "ms": 922208562818.8394
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-24",
          "window": {
            "start": {
              "local": "1999-03-24T12:14:25-04:00",
              "utc": "1999-03-24T16:14:25Z",
              "ms": 922292064766.1509
            },
            "end": {
              "local": "1999-03-24T13:02:25-04:00",
              "utc": "1999-03-24T17:02:25Z",
              "ms": 922294944766.1509
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 19:11 on Tue 23 Mar to 17:32 on Wed 24 Mar.",
          "fact": "1999-03-23T23:11:26Z → 1999-03-24T21:31:31Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 23rd, 12:14–13:02 on the 24th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 16147 s"
        },
        {
          "step": "ruling",
          "text": "Bhavānī Utpatti, Valencia, 1999: Wednesday 24 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "bhavani-utpatti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 8 Annapurna puja (Beng.) (paraviddha), Bhavani-utpatti (paraviddha), Asokastami (Special when combined with naks. Punarvasu and Wednesday, after mid-day)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Bhavānī Utpatti 1999 falls on Wednesday 24 March. Aṣṭamī runs from 19:11 on Tue 23 Mar to 17:32 on Wed 24 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/bhavani-utpatti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/rama-navami",
      "festival": "rama-navami",
      "name": "Rāma Navamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11958,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1999-03-24T17:31:31-04:00",
          "utc": "1999-03-24T21:31:31Z",
          "ms": 922311091372.3479
        },
        "end": {
          "local": "1999-03-25T16:21:24-04:00",
          "utc": "1999-03-25T20:21:24Z",
          "ms": 922393284325.9629
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-24T17:31:31-04:00",
          "utc": "1999-03-24T21:31:31Z",
          "ms": 922311091372.3479
        },
        "end": {
          "local": "1999-03-25T16:21:24-04:00",
          "utc": "1999-03-25T20:21:24Z",
          "ms": 922393284325.9629
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-24",
          "window": {
            "start": {
              "local": "1999-03-24T12:14:25-04:00",
              "utc": "1999-03-24T16:14:25Z",
              "ms": 922292064766.1509
            },
            "end": {
              "local": "1999-03-24T13:02:25-04:00",
              "utc": "1999-03-24T17:02:25Z",
              "ms": 922294944766.1509
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-25",
          "window": {
            "start": {
              "local": "1999-03-25T12:14:07-04:00",
              "utc": "1999-03-25T16:14:07Z",
              "ms": 922378446643.9312
            },
            "end": {
              "local": "1999-03-25T13:02:07-04:00",
              "utc": "1999-03-25T17:02:07Z",
              "ms": 922381326643.9312
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 17:32 on Wed 24 Mar to 16:21 on Thu 25 Mar.",
          "fact": "1999-03-24T21:31:31Z → 1999-03-25T20:21:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 24th, 12:14–13:02 on the 25th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 24th and 48 of 48 on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 11958 s"
        },
        {
          "step": "ruling",
          "text": "Rāma Navamī, Valencia, 1999: Thursday 25 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rama-navami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 9 Ramanavami (madhyahnavyapini, special with Punarvasu naks.), Rama jayanti."
          }
        ],
        "not_evaluated": "The row calls the day special when it falls with Punarvasu nakṣatra; the nakṣatra is not tested.",
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Rāma Navamī 1999 falls on Thursday 25 March. Navamī runs from 17:32 on Wed 24 Mar to 16:21 on Thu 25 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/rama-navami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-03-27",
      "festival": "ekadashi",
      "name": "Kāmadā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32197,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-03-26T15:41:02-04:00",
          "utc": "1999-03-26T19:41:02Z",
          "ms": 922477262464.2339
        },
        "end": {
          "local": "1999-03-27T15:29:09-04:00",
          "utc": "1999-03-27T19:29:09Z",
          "ms": 922562949335.0253
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-26T15:41:02-04:00",
          "utc": "1999-03-26T19:41:02Z",
          "ms": 922477262464.2339
        },
        "end": {
          "local": "1999-03-27T15:29:09-04:00",
          "utc": "1999-03-27T19:29:09Z",
          "ms": 922562949335.0253
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-03-26",
          "window": {
            "start": {
              "local": "1999-03-26T06:33:07-04:00",
              "utc": "1999-03-26T10:33:07Z",
              "ms": 922444387228.1926
            },
            "end": {
              "local": "1999-03-26T06:33:07-04:00",
              "utc": "1999-03-26T10:33:07Z",
              "ms": 922444387228.1926
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-03-27",
          "window": {
            "start": {
              "local": "1999-03-27T06:32:32-04:00",
              "utc": "1999-03-27T10:32:32Z",
              "ms": 922530752095.9202
            },
            "end": {
              "local": "1999-03-27T06:32:32-04:00",
              "utc": "1999-03-27T10:32:32Z",
              "ms": 922530752095.9202
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-03-28",
        "start": {
          "local": "1999-03-28T06:31:57-04:00",
          "utc": "1999-03-28T10:31:57Z",
          "ms": 922617116973.857
        },
        "end": {
          "local": "1999-03-28T08:58:03-04:00",
          "utc": "1999-03-28T12:58:03Z",
          "ms": 922625883015.3047
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-03-28T15:43:50-04:00",
          "utc": "1999-03-28T19:43:50Z",
          "ms": 922650229677.4553
        },
        "hari_vasara_end": {
          "local": "1999-03-27T21:32:49-04:00",
          "utc": "1999-03-28T01:32:49Z",
          "ms": 922584769420.6328
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 15:41 on Fri 26 Mar to 15:29 on Sat 27 Mar.",
          "fact": "1999-03-26T19:41:02Z → 1999-03-27T19:29:09Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:33 on the 26th and 06:33 on the 27th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 26th and is on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 32197 s"
        },
        {
          "step": "ruling",
          "text": "Kāmadā Ekādaśī, Valencia, 1999: Saturday 27 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kāmadā Ekādaśī 1999 falls on Saturday 27 March. Ekādaśī runs from 15:41 on Fri 26 Mar to 15:29 on Sat 27 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-03-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-03-28",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8362,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-03-28T15:43:50-04:00",
          "utc": "1999-03-28T19:43:50Z",
          "ms": 922650229677.4553
        },
        "end": {
          "local": "1999-03-29T16:23:04-04:00",
          "utc": "1999-03-29T20:23:04Z",
          "ms": 922738984108.3113
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-28T15:43:50-04:00",
          "utc": "1999-03-28T19:43:50Z",
          "ms": 922650229677.4553
        },
        "end": {
          "local": "1999-03-29T16:23:04-04:00",
          "utc": "1999-03-29T20:23:04Z",
          "ms": 922738984108.3113
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-03-28",
          "window": {
            "start": {
              "local": "1999-03-28T18:42:27-04:00",
              "utc": "1999-03-28T22:42:27Z",
              "ms": 922660947181.0955
            },
            "end": {
              "local": "1999-03-28T20:16:58-04:00",
              "utc": "1999-03-29T00:16:58Z",
              "ms": 922666618475.2762
            }
          },
          "covered_min": 95,
          "window_min": 95,
          "qualifies": true
        },
        {
          "local_date": "1999-03-29",
          "window": {
            "start": {
              "local": "1999-03-29T18:42:26-04:00",
              "utc": "1999-03-29T22:42:26Z",
              "ms": 922747345907.0309
            },
            "end": {
              "local": "1999-03-29T20:16:53-04:00",
              "utc": "1999-03-30T00:16:53Z",
              "ms": 922753012701.0664
            }
          },
          "covered_min": 0,
          "window_min": 94,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 15:44 on Sun 28 Mar to 16:23 on Mon 29 Mar.",
          "fact": "1999-03-28T19:43:50Z → 1999-03-29T20:23:04Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:42–20:17 on the 28th, 18:42–20:17 on the 29th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 95 of 95 minutes on the 28th and 0 of 94 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 8362 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Sunday 28 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Sunday 28 March. Trayodaśī runs from 15:44 on Sun 28 Mar to 16:23 on Mon 29 Mar and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-03-28",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ananga-trayodashi",
      "festival": "ananga-trayodashi",
      "name": "Anaṅga Trayodaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9758,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-03-28T15:43:50-04:00",
          "utc": "1999-03-28T19:43:50Z",
          "ms": 922650229677.4553
        },
        "end": {
          "local": "1999-03-29T16:23:04-04:00",
          "utc": "1999-03-29T20:23:04Z",
          "ms": 922738984108.3113
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-28T15:43:50-04:00",
          "utc": "1999-03-28T19:43:50Z",
          "ms": 922650229677.4553
        },
        "end": {
          "local": "1999-03-29T16:23:04-04:00",
          "utc": "1999-03-29T20:23:04Z",
          "ms": 922738984108.3113
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-28",
          "window": {
            "start": {
              "local": "1999-03-28T12:13:12-04:00",
              "utc": "1999-03-28T16:13:12Z",
              "ms": 922637592077.4763
            },
            "end": {
              "local": "1999-03-28T13:01:12-04:00",
              "utc": "1999-03-28T17:01:12Z",
              "ms": 922640472077.4763
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-29",
          "window": {
            "start": {
              "local": "1999-03-29T12:12:54-04:00",
              "utc": "1999-03-29T16:12:54Z",
              "ms": 922723973897.2413
            },
            "end": {
              "local": "1999-03-29T13:00:54-04:00",
              "utc": "1999-03-29T17:00:54Z",
              "ms": 922726853897.2413
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 15:44 on Sun 28 Mar to 16:23 on Mon 29 Mar.",
          "fact": "1999-03-28T19:43:50Z → 1999-03-29T20:23:04Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 28th, 12:13–13:01 on the 29th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 9758 s"
        },
        {
          "step": "ruling",
          "text": "Anaṅga Trayodaśī, Valencia, 1999: Monday 29 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ananga-trayodashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 13 Ananga trayodasi (purvaviddha), Mahavira jayanti (Jain)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Anaṅga Trayodaśī 1999 falls on Monday 29 March. Trayodaśī runs from 15:44 on Sun 28 Mar to 16:23 on Mon 29 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ananga-trayodashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vishnu-damanaka-chaturdashi",
      "festival": "vishnu-damanaka-chaturdashi",
      "name": "Viṣṇudamanaka Caturdaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12130,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-03-29T16:23:04-04:00",
          "utc": "1999-03-29T20:23:04Z",
          "ms": 922738984108.3113
        },
        "end": {
          "local": "1999-03-30T17:25:12-04:00",
          "utc": "1999-03-30T21:25:12Z",
          "ms": 922829111918.3032
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-29T16:23:04-04:00",
          "utc": "1999-03-29T20:23:04Z",
          "ms": 922738984108.3113
        },
        "end": {
          "local": "1999-03-30T17:25:12-04:00",
          "utc": "1999-03-30T21:25:12Z",
          "ms": 922829111918.3032
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-29",
          "window": {
            "start": {
              "local": "1999-03-29T12:12:54-04:00",
              "utc": "1999-03-29T16:12:54Z",
              "ms": 922723973897.2413
            },
            "end": {
              "local": "1999-03-29T13:00:54-04:00",
              "utc": "1999-03-29T17:00:54Z",
              "ms": 922726853897.2413
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-30",
          "window": {
            "start": {
              "local": "1999-03-30T12:12:36-04:00",
              "utc": "1999-03-30T16:12:36Z",
              "ms": 922810355759.5829
            },
            "end": {
              "local": "1999-03-30T13:00:36-04:00",
              "utc": "1999-03-30T17:00:36Z",
              "ms": 922813235759.5829
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 16:23 on Mon 29 Mar to 17:25 on Tue 30 Mar.",
          "fact": "1999-03-29T20:23:04Z → 1999-03-30T21:25:12Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 29th, 12:13–13:01 on the 30th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 12130 s"
        },
        {
          "step": "ruling",
          "text": "Viṣṇudamanaka Caturdaśī, Valencia, 1999: Tuesday 30 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vishnu-damanaka-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 14 Madanabhanji, (Bengal & Orissa) (paraviddha), Sivadamanaka caturdasi, Visnudamanaka caturdasi (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Viṣṇudamanaka Caturdaśī 1999 falls on Tuesday 30 March. Caturdaśī runs from 16:23 on Mon 29 Mar to 17:25 on Tue 30 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vishnu-damanaka-chaturdashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/chaitri-purnima",
      "festival": "chaitri-purnima",
      "name": "Caitrī Pūrṇimā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-03-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15876,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-03-30T17:25:12-04:00",
          "utc": "1999-03-30T21:25:12Z",
          "ms": 922829111918.3032
        },
        "end": {
          "local": "1999-03-31T18:48:54-04:00",
          "utc": "1999-03-31T22:48:54Z",
          "ms": 922920534019.6964
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-03-30T17:25:12-04:00",
          "utc": "1999-03-30T21:25:12Z",
          "ms": 922829111918.3032
        },
        "end": {
          "local": "1999-03-31T18:48:54-04:00",
          "utc": "1999-03-31T22:48:54Z",
          "ms": 922920534019.6964
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-30",
          "window": {
            "start": {
              "local": "1999-03-30T12:12:36-04:00",
              "utc": "1999-03-30T16:12:36Z",
              "ms": 922810355759.5829
            },
            "end": {
              "local": "1999-03-30T13:00:36-04:00",
              "utc": "1999-03-30T17:00:36Z",
              "ms": 922813235759.5829
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-31",
          "window": {
            "start": {
              "local": "1999-03-31T12:12:18-04:00",
              "utc": "1999-03-31T16:12:18Z",
              "ms": 922896737687.5144
            },
            "end": {
              "local": "1999-03-31T13:00:18-04:00",
              "utc": "1999-03-31T17:00:18Z",
              "ms": 922899617687.5144
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 17:25 on Tue 30 Mar to 18:49 on Wed 31 Mar.",
          "fact": "1999-03-30T21:25:12Z → 1999-03-31T22:48:54Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 30th, 12:12–13:00 on the 31st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 48 of 48 on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 15876 s"
        },
        {
          "step": "ruling",
          "text": "Caitrī Pūrṇimā, Valencia, 1999: Wednesday 31 March.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "chaitri-purnima",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Caitri purnima (paraviddha), Hanumat jayanti, Oli ending (Jain)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-03-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Caitrī Pūrṇimā 1999 falls on Wednesday 31 March. Pūrṇimā runs from 17:25 on Tue 30 Mar to 18:49 on Wed 31 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/chaitri-purnima",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-04-04",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13768,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-04-04T00:52:40-04:00",
          "utc": "1999-04-04T04:52:40Z",
          "ms": 923201559955.4751
        },
        "end": {
          "local": "1999-04-05T03:19:31-04:00",
          "utc": "1999-04-05T07:19:31Z",
          "ms": 923296771444.4219
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-04T00:52:40-04:00",
          "utc": "1999-04-04T04:52:40Z",
          "ms": 923201559955.4751
        },
        "end": {
          "local": "1999-04-05T03:19:31-04:00",
          "utc": "1999-04-05T07:19:31Z",
          "ms": 923296771444.4219
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-04-03",
          "window": {
            "start": {
              "local": "1999-04-03T21:03:12-04:00",
              "utc": "1999-04-04T01:03:12Z",
              "ms": 923187791825.5715
            },
            "end": {
              "local": "1999-04-03T21:03:12-04:00",
              "utc": "1999-04-04T01:03:12Z",
              "ms": 923187791825.5715
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-04-04",
          "window": {
            "start": {
              "local": "1999-04-04T21:50:15-04:00",
              "utc": "1999-04-05T01:50:15Z",
              "ms": 923277015091.3368
            },
            "end": {
              "local": "1999-04-04T21:50:15-04:00",
              "utc": "1999-04-05T01:50:15Z",
              "ms": 923277015091.3368
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 00:53 on Sun 4 Apr to 03:20 on Mon 5 Apr.",
          "fact": "1999-04-04T04:52:40Z → 1999-04-05T07:19:31Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:03 on the 3rd and 21:50 on the 4th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 3rd and is on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 13768 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Sunday 4 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Sunday 4 April. Caturthī runs from 00:53 on Sun 4 Apr to 03:20 on Mon 5 Apr and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-04-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-04-12",
      "festival": "ekadashi",
      "name": "Varūthinī Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16888,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-04-11T12:02:28-04:00",
          "utc": "1999-04-11T16:02:28Z",
          "ms": 923846548103.4663
        },
        "end": {
          "local": "1999-04-12T11:04:56-04:00",
          "utc": "1999-04-12T15:04:56Z",
          "ms": 923929496182.1204
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-11T12:02:28-04:00",
          "utc": "1999-04-11T16:02:28Z",
          "ms": 923846548103.4663
        },
        "end": {
          "local": "1999-04-12T11:04:56-04:00",
          "utc": "1999-04-12T15:04:56Z",
          "ms": 923929496182.1204
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-04-11",
          "window": {
            "start": {
              "local": "1999-04-11T06:24:00-04:00",
              "utc": "1999-04-11T10:24:00Z",
              "ms": 923826240349.9948
            },
            "end": {
              "local": "1999-04-11T06:24:00-04:00",
              "utc": "1999-04-11T10:24:00Z",
              "ms": 923826240349.9948
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-04-12",
          "window": {
            "start": {
              "local": "1999-04-12T06:23:28-04:00",
              "utc": "1999-04-12T10:23:28Z",
              "ms": 923912608323.053
            },
            "end": {
              "local": "1999-04-12T06:23:28-04:00",
              "utc": "1999-04-12T10:23:28Z",
              "ms": 923912608323.053
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-04-13",
        "start": {
          "local": "1999-04-13T06:22:57-04:00",
          "utc": "1999-04-13T10:22:57Z",
          "ms": 923998976677.2262
        },
        "end": {
          "local": "1999-04-13T08:50:49-04:00",
          "utc": "1999-04-13T12:50:49Z",
          "ms": 924007849389.5491
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-04-13T09:19:12-04:00",
          "utc": "1999-04-13T13:19:12Z",
          "ms": 924009552400.8271
        },
        "hari_vasara_end": {
          "local": "1999-04-12T16:38:30-04:00",
          "utc": "1999-04-12T20:38:30Z",
          "ms": 923949510236.7971
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 12:02 on Sun 11 Apr to 11:05 on Mon 12 Apr.",
          "fact": "1999-04-11T16:02:28Z → 1999-04-12T15:04:56Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:24 on the 11th and 06:23 on the 12th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 11th and is on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 16888 s"
        },
        {
          "step": "ruling",
          "text": "Varūthinī Ekādaśī, Valencia, 1999: Monday 12 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Varūthinī Ekādaśī 1999 falls on Monday 12 April. Ekādaśī runs from 12:02 on Sun 11 Apr to 11:05 on Mon 12 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-04-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vaishakhi",
      "festival": "vaishakhi",
      "name": "Vaiśākhī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16559,
      "anga": {
        "type": "sankranti",
        "index": 0,
        "key": "mesha",
        "name": "Meṣa",
        "start": {
          "local": "1999-04-14T01:46:26-04:00",
          "utc": "1999-04-14T05:46:26Z",
          "ms": 924068786444.1335
        },
        "end": {
          "local": "1999-05-14T22:34:39-04:00",
          "utc": "1999-05-15T02:34:39Z",
          "ms": 926735679078.3916
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1999-04-14T01:46:26-04:00",
          "utc": "1999-04-14T05:46:26Z",
          "ms": 924068786444.1335
        },
        "end": {
          "local": "1999-04-14T01:46:26-04:00",
          "utc": "1999-04-14T05:46:26Z",
          "ms": 924068786444.1335
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "1999-04-13",
          "window": {
            "start": {
              "local": "1999-04-13T06:22:57-04:00",
              "utc": "1999-04-13T10:22:57Z",
              "ms": 923998976677.2262
            },
            "end": {
              "local": "1999-04-14T06:22:25-04:00",
              "utc": "1999-04-14T10:22:25Z",
              "ms": 924085345429.7174
            }
          },
          "covered_min": 1,
          "window_min": 1439,
          "qualifies": true
        },
        {
          "local_date": "1999-04-14",
          "window": {
            "start": {
              "local": "1999-04-14T06:22:25-04:00",
              "utc": "1999-04-14T10:22:25Z",
              "ms": 924085345429.7174
            },
            "end": {
              "local": "1999-04-15T06:21:55-04:00",
              "utc": "1999-04-15T10:21:55Z",
              "ms": 924171714596.4435
            }
          },
          "covered_min": 0,
          "window_min": 1439,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Meṣa at 01:46 on Wed 14 Apr.",
          "fact": "1999-04-14T05:46:26Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day runs from sunrise to the next sunrise: from 06:23 on the 13th, and from 06:22 on the 14th.",
          "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 13th, not the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from sunrise → only-day · margin 16559 s"
        },
        {
          "step": "ruling",
          "text": "Vaiśākhī, Valencia, 1999: Tuesday 13 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "solar",
        "id": "vaishakhi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)."
          },
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        ],
        "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.",
        "rashi": "Meṣa",
        "day_from": "sunrise"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-13",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "1999-04-14",
          "statement": "Counted from midnight",
          "reference": {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 106",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day."
          }
        },
        {
          "kind": "reckoning",
          "id": "sunset-rule",
          "local_date": "1999-04-14",
          "statement": "Past sunset, the next day (the Tamil rule)",
          "reference": {
            "text": "Calendar Reform Committee 1955, Rules of Samkranti",
            "locator": "p. 244",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day."
          }
        }
      ],
      "quote": "In Valencia, Vaiśākhī 1999 falls on Tuesday 13 April. The Sun enters Meṣa at 01:46 on Wed 14 Apr, and the rule counts the day from sunrise. Counted from midnight, or by the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 14 April.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vaishakhi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-04-13",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33788,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-04-13T09:19:12-04:00",
          "utc": "1999-04-13T13:19:12Z",
          "ms": 924009552400.8271
        },
        "end": {
          "local": "1999-04-14T06:50:59-04:00",
          "utc": "1999-04-14T10:50:59Z",
          "ms": 924087059491.6364
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-13T09:19:12-04:00",
          "utc": "1999-04-13T13:19:12Z",
          "ms": 924009552400.8271
        },
        "end": {
          "local": "1999-04-14T06:50:59-04:00",
          "utc": "1999-04-14T10:50:59Z",
          "ms": 924087059491.6364
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-04-13",
          "window": {
            "start": {
              "local": "1999-04-13T18:42:20-04:00",
              "utc": "1999-04-13T22:42:20Z",
              "ms": 924043340238.8407
            },
            "end": {
              "local": "1999-04-13T20:15:41-04:00",
              "utc": "1999-04-14T00:15:41Z",
              "ms": 924048940930.9576
            }
          },
          "covered_min": 93,
          "window_min": 93,
          "qualifies": true
        },
        {
          "local_date": "1999-04-14",
          "window": {
            "start": {
              "local": "1999-04-14T18:42:21-04:00",
              "utc": "1999-04-14T22:42:21Z",
              "ms": 924129741495.7435
            },
            "end": {
              "local": "1999-04-14T20:15:38-04:00",
              "utc": "1999-04-15T00:15:38Z",
              "ms": 924135337909.1702
            }
          },
          "covered_min": 0,
          "window_min": 93,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 09:19 on Tue 13 Apr to 06:51 on Wed 14 Apr.",
          "fact": "1999-04-13T13:19:12Z → 1999-04-14T10:50:59Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:42–20:16 on the 13th, 18:42–20:16 on the 14th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 93 of 93 minutes on the 13th and 0 of 93 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 33788 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Tuesday 13 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Tuesday 13 April. Trayodaśī runs from 09:19 on Tue 13 Apr to 06:51 on Wed 14 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-04-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-04-14",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10345,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-04-14T06:50:59-04:00",
          "utc": "1999-04-14T10:50:59Z",
          "ms": 924087059491.6364
        },
        "end": {
          "local": "1999-04-15T03:48:33-04:00",
          "utc": "1999-04-15T07:48:33Z",
          "ms": 924162512668.9152
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-14T06:50:59-04:00",
          "utc": "1999-04-14T10:50:59Z",
          "ms": 924087059491.6364
        },
        "end": {
          "local": "1999-04-15T03:48:33-04:00",
          "utc": "1999-04-15T07:48:33Z",
          "ms": 924162512668.9152
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-04-13",
          "window": {
            "start": {
              "local": "1999-04-14T00:08:23-04:00",
              "utc": "1999-04-14T04:08:23Z",
              "ms": 924062902834.279
            },
            "end": {
              "local": "1999-04-14T00:56:23-04:00",
              "utc": "1999-04-14T04:56:23Z",
              "ms": 924065782834.279
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-04-14",
          "window": {
            "start": {
              "local": "1999-04-15T00:08:08-04:00",
              "utc": "1999-04-15T04:08:08Z",
              "ms": 924149288046.0935
            },
            "end": {
              "local": "1999-04-15T00:56:08-04:00",
              "utc": "1999-04-15T04:56:08Z",
              "ms": 924152168046.0935
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 06:51 on Wed 14 Apr to 03:49 on Thu 15 Apr.",
          "fact": "1999-04-14T10:50:59Z → 1999-04-15T07:48:33Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:08–00:56 on the 13th, 00:08–00:56 on the 14th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 10345 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Wednesday 14 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Wednesday 14 April. Caturdaśī runs from 06:51 on Wed 14 Apr to 03:49 on Thu 15 Apr and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-04-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/parashurama-jayanti",
      "festival": "parashurama-jayanti",
      "name": "Paraśurāma Jayantī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6213,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-04-17T16:58:54-04:00",
          "utc": "1999-04-17T20:58:54Z",
          "ms": 924382734367.4559
        },
        "end": {
          "local": "1999-04-18T13:24:47-04:00",
          "utc": "1999-04-18T17:24:47Z",
          "ms": 924456287304.1661
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-17T16:58:54-04:00",
          "utc": "1999-04-17T20:58:54Z",
          "ms": 924382734367.4559
        },
        "end": {
          "local": "1999-04-18T13:24:47-04:00",
          "utc": "1999-04-18T17:24:47Z",
          "ms": 924456287304.1661
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-04-17",
          "window": {
            "start": {
              "local": "1999-04-17T18:42:27-04:00",
              "utc": "1999-04-17T22:42:27Z",
              "ms": 924388946925.8242
            },
            "end": {
              "local": "1999-04-17T20:15:31-04:00",
              "utc": "1999-04-18T00:15:31Z",
              "ms": 924394530632.4462
            }
          },
          "covered_min": 93,
          "window_min": 93,
          "qualifies": true
        },
        {
          "local_date": "1999-04-18",
          "window": {
            "start": {
              "local": "1999-04-18T18:42:29-04:00",
              "utc": "1999-04-18T22:42:29Z",
              "ms": 924475349308.1501
            },
            "end": {
              "local": "1999-04-18T20:15:29-04:00",
              "utc": "1999-04-19T00:15:29Z",
              "ms": 924480928825.7717
            }
          },
          "covered_min": 0,
          "window_min": 93,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 16:59 on Sat 17 Apr to 13:25 on Sun 18 Apr.",
          "fact": "1999-04-17T20:58:54Z → 1999-04-18T17:24:47Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:42–20:16 on the 17th, 18:42–20:15 on the 18th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during pradoṣa. It covers 93 of 93 minutes on the 17th and 0 of 93 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 6213 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Jayantī, Valencia, 1999: Saturday 17 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "parashurama-jayanti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)."
          }
        ],
        "kaala": "pradosha",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Paraśurāma Jayantī 1999 falls on Saturday 17 April. Tṛtīyā runs from 16:59 on Sat 17 Apr to 13:25 on Sun 18 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/parashurama-jayanti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/akshaya-tritiya",
      "festival": "akshaya-tritiya",
      "name": "Akṣaya Tṛtīyā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10621,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-04-17T16:58:54-04:00",
          "utc": "1999-04-17T20:58:54Z",
          "ms": 924382734367.4559
        },
        "end": {
          "local": "1999-04-18T13:24:47-04:00",
          "utc": "1999-04-18T17:24:47Z",
          "ms": 924456287304.1661
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-17T16:58:54-04:00",
          "utc": "1999-04-17T20:58:54Z",
          "ms": 924382734367.4559
        },
        "end": {
          "local": "1999-04-18T13:24:47-04:00",
          "utc": "1999-04-18T17:24:47Z",
          "ms": 924456287304.1661
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "1999-04-17",
          "window": {
            "start": {
              "local": "1999-04-17T06:20:54-04:00",
              "utc": "1999-04-17T10:20:54Z",
              "ms": 924344454230.6539
            },
            "end": {
              "local": "1999-04-17T10:28:05-04:00",
              "utc": "1999-04-17T14:28:05Z",
              "ms": 924359285129.0441
            }
          },
          "covered_min": 0,
          "window_min": 247,
          "qualifies": false
        },
        {
          "local_date": "1999-04-18",
          "window": {
            "start": {
              "local": "1999-04-18T06:20:25-04:00",
              "utc": "1999-04-18T10:20:25Z",
              "ms": 924430824725.489
            },
            "end": {
              "local": "1999-04-18T10:27:46-04:00",
              "utc": "1999-04-18T14:27:46Z",
              "ms": 924445666253.0427
            }
          },
          "covered_min": 247,
          "window_min": 247,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 16:59 on Sat 17 Apr to 13:25 on Sun 18 Apr.",
          "fact": "1999-04-17T20:58:54Z → 1999-04-18T17:24:47Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:21–10:28 on the 17th, 06:20–10:28 on the 18th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 0 of 247 minutes on the 17th and 247 of 247 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one forenoon qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 10621 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Tṛtīyā, Valencia, 1999: Sunday 18 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "akshaya-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)."
          }
        ],
        "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.",
        "kaala": "purvahna",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Akṣaya Tṛtīyā 1999 falls on Sunday 18 April. Tṛtīyā runs from 16:59 on Sat 17 Apr to 13:25 on Sun 18 Apr and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/valencia/festivals/1999/akshaya-tritiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shankara-jayanti",
      "festival": "shankara-jayanti",
      "name": "Śaṅkara Jayantī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7075,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-04-19T10:09:18-04:00",
          "utc": "1999-04-19T14:09:18Z",
          "ms": 924530958459.5343
        },
        "end": {
          "local": "1999-04-20T07:21:19-04:00",
          "utc": "1999-04-20T11:21:19Z",
          "ms": 924607278703.6344
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-19T10:09:18-04:00",
          "utc": "1999-04-19T14:09:18Z",
          "ms": 924530958459.5343
        },
        "end": {
          "local": "1999-04-20T07:21:19-04:00",
          "utc": "1999-04-20T11:21:19Z",
          "ms": 924607278703.6344
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-19",
          "window": {
            "start": {
              "local": "1999-04-19T12:07:14-04:00",
              "utc": "1999-04-19T16:07:14Z",
              "ms": 924538033837.916
            },
            "end": {
              "local": "1999-04-19T12:55:14-04:00",
              "utc": "1999-04-19T16:55:14Z",
              "ms": 924540913837.916
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-04-20",
          "window": {
            "start": {
              "local": "1999-04-20T12:07:01-04:00",
              "utc": "1999-04-20T16:07:01Z",
              "ms": 924624421051.6677
            },
            "end": {
              "local": "1999-04-20T12:55:01-04:00",
              "utc": "1999-04-20T16:55:01Z",
              "ms": 924627301051.6677
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 10:09 on Mon 19 Apr to 07:21 on Tue 20 Apr.",
          "fact": "1999-04-19T14:09:18Z → 1999-04-20T11:21:19Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 19th, 12:07–12:55 on the 20th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7075 s"
        },
        {
          "step": "ruling",
          "text": "Śaṅkara Jayantī, Valencia, 1999: Monday 19 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shankara-jayanti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Sankara jayanti."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śaṅkara Jayantī 1999 falls on Monday 19 April. Pañcamī runs from 10:09 on Mon 19 Apr to 07:21 on Tue 20 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shankara-jayanti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vinayaka-chaturthi?on=1999-04-19",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1760,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-04-18T13:24:47-04:00",
          "utc": "1999-04-18T17:24:47Z",
          "ms": 924456287304.1661
        },
        "end": {
          "local": "1999-04-19T10:09:18-04:00",
          "utc": "1999-04-19T14:09:18Z",
          "ms": 924530958459.5343
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-18T13:24:47-04:00",
          "utc": "1999-04-18T17:24:47Z",
          "ms": 924456287304.1661
        },
        "end": {
          "local": "1999-04-19T10:09:18-04:00",
          "utc": "1999-04-19T14:09:18Z",
          "ms": 924530958459.5343
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-18",
          "window": {
            "start": {
              "local": "1999-04-18T12:07:27-04:00",
              "utc": "1999-04-18T16:07:27Z",
              "ms": 924451647016.8196
            },
            "end": {
              "local": "1999-04-18T12:55:27-04:00",
              "utc": "1999-04-18T16:55:27Z",
              "ms": 924454527016.8196
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-04-19",
          "window": {
            "start": {
              "local": "1999-04-19T12:07:14-04:00",
              "utc": "1999-04-19T16:07:14Z",
              "ms": 924538033837.916
            },
            "end": {
              "local": "1999-04-19T12:55:14-04:00",
              "utc": "1999-04-19T16:55:14Z",
              "ms": 924540913837.916
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:25 on Sun 18 Apr to 10:09 on Mon 19 Apr.",
          "fact": "1999-04-18T17:24:47Z → 1999-04-19T14:09:18Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 18th, 12:07–12:55 on the 19th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 0 of 48 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: unstated → second-day · margin 1760 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Valencia, 1999: Monday 19 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vināyaka Caturthī 1999 falls on Monday 19 April. Caturthī runs from 13:25 on Sun 18 Apr to 10:09 on Mon 19 Apr, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vinayaka-chaturthi?on=1999-04-19",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/gangotpatti",
      "festival": "gangotpatti",
      "name": "Gaṅgotpatti",
      "everyday": "Ganga Saptami",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25141,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-04-21T05:07:48-04:00",
          "utc": "1999-04-21T09:07:48Z",
          "ms": 924685667952.3691
        },
        "end": {
          "local": "1999-04-22T03:33:23-04:00",
          "utc": "1999-04-22T07:33:23Z",
          "ms": 924766403050.3668
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-21T05:07:48-04:00",
          "utc": "1999-04-21T09:07:48Z",
          "ms": 924685667952.3691
        },
        "end": {
          "local": "1999-04-22T03:33:23-04:00",
          "utc": "1999-04-22T07:33:23Z",
          "ms": 924766403050.3668
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-21",
          "window": {
            "start": {
              "local": "1999-04-21T12:06:49-04:00",
              "utc": "1999-04-21T16:06:49Z",
              "ms": 924710808669.0447
            },
            "end": {
              "local": "1999-04-21T12:54:49-04:00",
              "utc": "1999-04-21T16:54:49Z",
              "ms": 924713688669.0447
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-04-22",
          "window": {
            "start": {
              "local": "1999-04-22T12:06:37-04:00",
              "utc": "1999-04-22T16:06:37Z",
              "ms": 924797196701.848
            },
            "end": {
              "local": "1999-04-22T12:54:37-04:00",
              "utc": "1999-04-22T16:54:37Z",
              "ms": 924800076701.848
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 05:08 on Wed 21 Apr to 03:33 on Thu 22 Apr.",
          "fact": "1999-04-21T09:07:48Z → 1999-04-22T07:33:23Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 21st, 12:07–12:55 on the 22nd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 25141 s"
        },
        {
          "step": "ruling",
          "text": "Gaṅgotpatti, Valencia, 1999: Wednesday 21 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "gangotpatti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Gaṅgotpatti (Ganga Saptami) 1999 falls on Wednesday 21 April. Saptamī runs from 05:08 on Wed 21 Apr to 03:33 on Thu 22 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/gangotpatti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-04-25",
      "festival": "ekadashi",
      "name": "Mohinī Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9141,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-04-25T02:49:38-04:00",
          "utc": "1999-04-25T06:49:38Z",
          "ms": 925022977945.3748
        },
        "end": {
          "local": "1999-04-26T03:44:26-04:00",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-25T02:49:38-04:00",
          "utc": "1999-04-25T06:49:38Z",
          "ms": 925022977945.3748
        },
        "end": {
          "local": "1999-04-26T03:44:26-04:00",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-04-25",
          "window": {
            "start": {
              "local": "1999-04-25T06:17:12-04:00",
              "utc": "1999-04-25T10:17:12Z",
              "ms": 925035432207.1729
            },
            "end": {
              "local": "1999-04-25T06:17:12-04:00",
              "utc": "1999-04-25T10:17:12Z",
              "ms": 925035432207.1729
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-04-26",
          "window": {
            "start": {
              "local": "1999-04-26T06:16:47-04:00",
              "utc": "1999-04-26T10:16:47Z",
              "ms": 925121806904.7378
            },
            "end": {
              "local": "1999-04-26T06:16:47-04:00",
              "utc": "1999-04-26T10:16:47Z",
              "ms": 925121806904.7378
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-04-26",
        "start": {
          "local": "1999-04-26T13:44:31-04:00",
          "utc": "1999-04-26T17:44:31Z",
          "ms": 925148670509.7314
        },
        "end": {
          "local": "1999-04-26T16:13:45-04:00",
          "utc": "1999-04-26T20:13:45Z",
          "ms": 925157625044.7292
        },
        "basis": "aparahna",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-04-27T05:05:15-04:00",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        },
        "hari_vasara_end": {
          "local": "1999-04-26T10:04:38-04:00",
          "utc": "1999-04-26T14:04:38Z",
          "ms": 925135478340.6787
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 02:50 on Sun 25 Apr to 03:44 on Mon 26 Apr.",
          "fact": "1999-04-25T06:49:38Z → 1999-04-26T07:44:26Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:17 on the 25th and 06:17 on the 26th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 25th and is not on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 9141 s"
        },
        {
          "step": "ruling",
          "text": "Mohinī Ekādaśī, Valencia, 1999: Sunday 25 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Mohinī Ekādaśī 1999 falls on Sunday 25 April. Ekādaśī runs from 02:50 on Sun 25 Apr to 03:44 on Mon 26 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-04-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/parashurama-dvadashi",
      "festival": "parashurama-dvadashi",
      "name": "Paraśurāma Dvādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25228,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-04-26T03:44:26-04:00",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        },
        "end": {
          "local": "1999-04-27T05:05:15-04:00",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-26T03:44:26-04:00",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        },
        "end": {
          "local": "1999-04-27T05:05:15-04:00",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-26",
          "window": {
            "start": {
              "local": "1999-04-26T12:05:53-04:00",
              "utc": "1999-04-26T16:05:53Z",
              "ms": 925142753242.2324
            },
            "end": {
              "local": "1999-04-26T12:53:53-04:00",
              "utc": "1999-04-26T16:53:53Z",
              "ms": 925145633242.2324
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-04-27",
          "window": {
            "start": {
              "local": "1999-04-27T12:05:44-04:00",
              "utc": "1999-04-27T16:05:44Z",
              "ms": 925229143545.0441
            },
            "end": {
              "local": "1999-04-27T12:53:44-04:00",
              "utc": "1999-04-27T16:53:44Z",
              "ms": 925232023545.0441
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 03:44 on Mon 26 Apr to 05:05 on Tue 27 Apr.",
          "fact": "1999-04-26T07:44:26Z → 1999-04-27T09:05:15Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 26th, 12:06–12:54 on the 27th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 25228 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Dvādaśī, Valencia, 1999: Monday 26 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "parashurama-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Paraśurāma Dvādaśī 1999 falls on Monday 26 April. Dvādaśī runs from 03:44 on Mon 26 Apr to 05:05 on Tue 27 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/parashurama-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/rukmini-dvadashi",
      "festival": "rukmini-dvadashi",
      "name": "Rukmiṇī Dvādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25228,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-04-26T03:44:26-04:00",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        },
        "end": {
          "local": "1999-04-27T05:05:15-04:00",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-26T03:44:26-04:00",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        },
        "end": {
          "local": "1999-04-27T05:05:15-04:00",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-26",
          "window": {
            "start": {
              "local": "1999-04-26T12:05:53-04:00",
              "utc": "1999-04-26T16:05:53Z",
              "ms": 925142753242.2324
            },
            "end": {
              "local": "1999-04-26T12:53:53-04:00",
              "utc": "1999-04-26T16:53:53Z",
              "ms": 925145633242.2324
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-04-27",
          "window": {
            "start": {
              "local": "1999-04-27T12:05:44-04:00",
              "utc": "1999-04-27T16:05:44Z",
              "ms": 925229143545.0441
            },
            "end": {
              "local": "1999-04-27T12:53:44-04:00",
              "utc": "1999-04-27T16:53:44Z",
              "ms": 925232023545.0441
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 03:44 on Mon 26 Apr to 05:05 on Tue 27 Apr.",
          "fact": "1999-04-26T07:44:26Z → 1999-04-27T09:05:15Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 26th, 12:06–12:54 on the 27th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 25228 s"
        },
        {
          "step": "ruling",
          "text": "Rukmiṇī Dvādaśī, Valencia, 1999: Monday 26 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rukmini-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Rukmiṇī Dvādaśī 1999 falls on Monday 26 April. Dvādaśī runs from 03:44 on Mon 26 Apr to 05:05 on Tue 27 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/rukmini-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-04-27",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31789,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-04-27T05:05:15-04:00",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        },
        "end": {
          "local": "1999-04-28T06:46:45-04:00",
          "utc": "1999-04-28T10:46:45Z",
          "ms": 925296405278.0532
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-27T05:05:15-04:00",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        },
        "end": {
          "local": "1999-04-28T06:46:45-04:00",
          "utc": "1999-04-28T10:46:45Z",
          "ms": 925296405278.0532
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-04-26",
          "window": {
            "start": {
              "local": "1999-04-26T18:43:00-04:00",
              "utc": "1999-04-26T22:43:00Z",
              "ms": 925166579579.7272
            },
            "end": {
              "local": "1999-04-26T20:15:27-04:00",
              "utc": "1999-04-27T00:15:27Z",
              "ms": 925172126596.3628
            }
          },
          "covered_min": 0,
          "window_min": 92,
          "qualifies": false
        },
        {
          "local_date": "1999-04-27",
          "window": {
            "start": {
              "local": "1999-04-27T18:43:05-04:00",
              "utc": "1999-04-27T22:43:05Z",
              "ms": 925252984885.5939
            },
            "end": {
              "local": "1999-04-27T20:15:28-04:00",
              "utc": "1999-04-28T00:15:28Z",
              "ms": 925258527984.0156
            }
          },
          "covered_min": 92,
          "window_min": 92,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 05:05 on Tue 27 Apr to 06:47 on Wed 28 Apr.",
          "fact": "1999-04-27T09:05:15Z → 1999-04-28T10:46:45Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:15 on the 26th, 18:43–20:15 on the 27th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 92 minutes on the 26th and 92 of 92 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 31789 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Tuesday 27 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Tuesday 27 April. Trayodaśī runs from 05:05 on Tue 27 Apr to 06:47 on Wed 28 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-04-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/nrisimha-chaturdashi",
      "festival": "nrisimha-chaturdashi",
      "name": "Nṛsiṃha Caturdaśī",
      "everyday": "Narasimha Jayanti",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35931,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-04-28T06:46:45-04:00",
          "utc": "1999-04-28T10:46:45Z",
          "ms": 925296405278.0532
        },
        "end": {
          "local": "1999-04-29T08:44:26-04:00",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-28T06:46:45-04:00",
          "utc": "1999-04-28T10:46:45Z",
          "ms": 925296405278.0532
        },
        "end": {
          "local": "1999-04-29T08:44:26-04:00",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-04-28",
          "window": {
            "start": {
              "local": "1999-04-28T18:43:11-04:00",
              "utc": "1999-04-28T22:43:11Z",
              "ms": 925339390557.7534
            },
            "end": {
              "local": "1999-04-28T20:15:30-04:00",
              "utc": "1999-04-29T00:15:30Z",
              "ms": 925344929773.988
            }
          },
          "covered_min": 92,
          "window_min": 92,
          "qualifies": true
        },
        {
          "local_date": "1999-04-29",
          "window": {
            "start": {
              "local": "1999-04-29T18:43:17-04:00",
              "utc": "1999-04-29T22:43:17Z",
              "ms": 925425796603.8582
            },
            "end": {
              "local": "1999-04-29T20:15:32-04:00",
              "utc": "1999-04-30T00:15:32Z",
              "ms": 925431331975.12
            }
          },
          "covered_min": 0,
          "window_min": 92,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 06:47 on Wed 28 Apr to 08:44 on Thu 29 Apr.",
          "fact": "1999-04-28T10:46:45Z → 1999-04-29T12:44:26Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:15 on the 28th, 18:43–20:16 on the 29th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during pradoṣa. It covers 92 of 92 minutes on the 28th and 0 of 92 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 35931 s"
        },
        {
          "step": "ruling",
          "text": "Nṛsiṃha Caturdaśī, Valencia, 1999: Wednesday 28 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "nrisimha-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 14 Nrsimha caturdasi (pradosa vyapini — if it occurs on two successive days, the second day is to be observed, special when combined with naksatra 'Svati', yoga 'Siddhi' and 'Saturday')."
          }
        ],
        "not_evaluated": "The row calls the day special with Svātī nakṣatra, Siddhi yoga and a Saturday; none is tested.",
        "kaala": "pradosha",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1999 falls on Wednesday 28 April. Caturdaśī runs from 06:47 on Wed 28 Apr to 08:44 on Thu 29 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/nrisimha-chaturdashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/buddha-purnima",
      "festival": "buddha-purnima",
      "name": "Buddha Pūrṇimā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4242,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-04-29T08:44:26-04:00",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        },
        "end": {
          "local": "1999-04-30T10:54:36-04:00",
          "utc": "1999-04-30T14:54:36Z",
          "ms": 925484075789.7118
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-29T08:44:26-04:00",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        },
        "end": {
          "local": "1999-04-30T10:54:36-04:00",
          "utc": "1999-04-30T14:54:36Z",
          "ms": 925484075789.7118
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-29",
          "window": {
            "start": {
              "local": "1999-04-29T12:05:26-04:00",
              "utc": "1999-04-29T16:05:26Z",
              "ms": 925401925641.6858
            },
            "end": {
              "local": "1999-04-29T12:53:26-04:00",
              "utc": "1999-04-29T16:53:26Z",
              "ms": 925404805641.6858
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-04-30",
          "window": {
            "start": {
              "local": "1999-04-30T12:05:17-04:00",
              "utc": "1999-04-30T16:05:17Z",
              "ms": 925488317459.6317
            },
            "end": {
              "local": "1999-04-30T12:53:17-04:00",
              "utc": "1999-04-30T16:53:17Z",
              "ms": 925491197459.6317
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 08:44 on Thu 29 Apr to 10:55 on Fri 30 Apr.",
          "fact": "1999-04-29T12:44:26Z → 1999-04-30T14:54:36Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 29th, 12:05–12:53 on the 30th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 29th and 0 of 48 on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 4242 s"
        },
        {
          "step": "ruling",
          "text": "Buddha Pūrṇimā, Valencia, 1999: Thursday 29 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "buddha-purnima",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Sampat gauri vrata (paraviddha), Phuladola (Bengal & Orissa) (paraviddha), Gandhesvari puja (Bengal) (purvaviddha), Buddha purnima, Vaisakhi purnima."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Buddha Pūrṇimā 1999 falls on Thursday 29 April. Pūrṇimā runs from 08:44 on Thu 29 Apr to 10:55 on Fri 30 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/buddha-purnima",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sampat-gauri-vrata",
      "festival": "sampat-gauri-vrata",
      "name": "Sampat Gaurī Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-04-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4242,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-04-29T08:44:26-04:00",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        },
        "end": {
          "local": "1999-04-30T10:54:36-04:00",
          "utc": "1999-04-30T14:54:36Z",
          "ms": 925484075789.7118
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-04-29T08:44:26-04:00",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        },
        "end": {
          "local": "1999-04-30T10:54:36-04:00",
          "utc": "1999-04-30T14:54:36Z",
          "ms": 925484075789.7118
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-29",
          "window": {
            "start": {
              "local": "1999-04-29T12:05:26-04:00",
              "utc": "1999-04-29T16:05:26Z",
              "ms": 925401925641.6858
            },
            "end": {
              "local": "1999-04-29T12:53:26-04:00",
              "utc": "1999-04-29T16:53:26Z",
              "ms": 925404805641.6858
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-04-30",
          "window": {
            "start": {
              "local": "1999-04-30T12:05:17-04:00",
              "utc": "1999-04-30T16:05:17Z",
              "ms": 925488317459.6317
            },
            "end": {
              "local": "1999-04-30T12:53:17-04:00",
              "utc": "1999-04-30T16:53:17Z",
              "ms": 925491197459.6317
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 08:44 on Thu 29 Apr to 10:55 on Fri 30 Apr.",
          "fact": "1999-04-29T12:44:26Z → 1999-04-30T14:54:36Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 29th, 12:05–12:53 on the 30th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 29th and 0 of 48 on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 4242 s"
        },
        {
          "step": "ruling",
          "text": "Sampat Gaurī Vrata, Valencia, 1999: Thursday 29 April.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sampat-gauri-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Sampat gauri vrata (paraviddha), Phuladola (Bengal & Orissa) (paraviddha), Gandhesvari puja (Bengal) (purvaviddha), Buddha purnima, Vaisakhi purnima."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-04-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Sampat Gaurī Vrata 1999 falls on Thursday 29 April. Pūrṇimā runs from 08:44 on Thu 29 Apr to 10:55 on Fri 30 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sampat-gauri-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-05-03",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-05-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6469,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-05-03T18:04:11-04:00",
          "utc": "1999-05-03T22:04:11Z",
          "ms": 925769050729.3442
        },
        "end": {
          "local": "1999-05-04T20:23:20-04:00",
          "utc": "1999-05-05T00:23:20Z",
          "ms": 925863799772.3925
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-05-03T18:04:11-04:00",
          "utc": "1999-05-03T22:04:11Z",
          "ms": 925769050729.3442
        },
        "end": {
          "local": "1999-05-04T20:23:20-04:00",
          "utc": "1999-05-05T00:23:20Z",
          "ms": 925863799772.3925
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-05-03",
          "window": {
            "start": {
              "local": "1999-05-03T21:22:21-04:00",
              "utc": "1999-05-04T01:22:21Z",
              "ms": 925780941040.5173
            },
            "end": {
              "local": "1999-05-03T21:22:21-04:00",
              "utc": "1999-05-04T01:22:21Z",
              "ms": 925780941040.5173
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-05-04",
          "window": {
            "start": {
              "local": "1999-05-04T22:11:09-04:00",
              "utc": "1999-05-05T02:11:09Z",
              "ms": 925870269065.4391
            },
            "end": {
              "local": "1999-05-04T22:11:09-04:00",
              "utc": "1999-05-05T02:11:09Z",
              "ms": 925870269065.4391
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 18:04 on Mon 3 May to 20:23 on Tue 4 May.",
          "fact": "1999-05-03T22:04:11Z → 1999-05-05T00:23:20Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:22 on the 3rd and 22:11 on the 4th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 3rd and is not on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 6469 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Monday 3 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-05-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Monday 3 May. Caturthī runs from 18:04 on Mon 3 May to 20:23 on Tue 4 May and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-05-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-05-11",
      "festival": "ekadashi",
      "name": "Aparā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-05-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22849,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-05-10T23:50:59-04:00",
          "utc": "1999-05-11T03:50:59Z",
          "ms": 926394658927.4991
        },
        "end": {
          "local": "1999-05-11T21:47:17-04:00",
          "utc": "1999-05-12T01:47:17Z",
          "ms": 926473636772.6238
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-05-10T23:50:59-04:00",
          "utc": "1999-05-11T03:50:59Z",
          "ms": 926394658927.4991
        },
        "end": {
          "local": "1999-05-11T21:47:17-04:00",
          "utc": "1999-05-12T01:47:17Z",
          "ms": 926473636772.6238
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-05-11",
          "window": {
            "start": {
              "local": "1999-05-11T06:11:48-04:00",
              "utc": "1999-05-11T10:11:48Z",
              "ms": 926417508363.699
            },
            "end": {
              "local": "1999-05-11T06:11:48-04:00",
              "utc": "1999-05-11T10:11:48Z",
              "ms": 926417508363.699
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-05-12",
          "window": {
            "start": {
              "local": "1999-05-12T06:11:34-04:00",
              "utc": "1999-05-12T10:11:34Z",
              "ms": 926503894441.594
            },
            "end": {
              "local": "1999-05-12T06:11:34-04:00",
              "utc": "1999-05-12T10:11:34Z",
              "ms": 926503894441.594
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-05-12",
        "start": {
          "local": "1999-05-12T06:11:34-04:00",
          "utc": "1999-05-12T10:11:34Z",
          "ms": 926503894441.594
        },
        "end": {
          "local": "1999-05-12T08:42:18-04:00",
          "utc": "1999-05-12T12:42:18Z",
          "ms": 926512937794.0366
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-05-12T19:01:46-04:00",
          "utc": "1999-05-12T23:01:46Z",
          "ms": 926550105999.507
        },
        "hari_vasara_end": {
          "local": "1999-05-12T03:05:54-04:00",
          "utc": "1999-05-12T07:05:54Z",
          "ms": 926492754079.3446
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 23:51 on Mon 10 May to 21:47 on Tue 11 May.",
          "fact": "1999-05-11T03:50:59Z → 1999-05-12T01:47:17Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:12 on the 11th and 06:12 on the 12th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 11th and is not on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 22849 s"
        },
        {
          "step": "ruling",
          "text": "Aparā Ekādaśī, Valencia, 1999: Tuesday 11 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-05-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Aparā Ekādaśī 1999 falls on Tuesday 11 May. Ekādaśī runs from 23:51 on Mon 10 May to 21:47 on Tue 11 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-05-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-05-12",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-05-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 995,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-05-12T19:01:46-04:00",
          "utc": "1999-05-12T23:01:46Z",
          "ms": 926550105999.507
        },
        "end": {
          "local": "1999-05-13T15:42:42-04:00",
          "utc": "1999-05-13T19:42:42Z",
          "ms": 926624561785.8661
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-05-12T19:01:46-04:00",
          "utc": "1999-05-12T23:01:46Z",
          "ms": 926550105999.507
        },
        "end": {
          "local": "1999-05-13T15:42:42-04:00",
          "utc": "1999-05-13T19:42:42Z",
          "ms": 926624561785.8661
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-05-12",
          "window": {
            "start": {
              "local": "1999-05-12T18:45:11-04:00",
              "utc": "1999-05-12T22:45:11Z",
              "ms": 926549111203.8073
            },
            "end": {
              "local": "1999-05-12T20:16:41-04:00",
              "utc": "1999-05-13T00:16:41Z",
              "ms": 926554600551.7045
            }
          },
          "covered_min": 75,
          "window_min": 91,
          "qualifies": true
        },
        {
          "local_date": "1999-05-13",
          "window": {
            "start": {
              "local": "1999-05-13T18:45:23-04:00",
              "utc": "1999-05-13T22:45:23Z",
              "ms": 926635522784.8392
            },
            "end": {
              "local": "1999-05-13T20:16:49-04:00",
              "utc": "1999-05-14T00:16:49Z",
              "ms": 926641008944.0685
            }
          },
          "covered_min": 0,
          "window_min": 91,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 19:02 on Wed 12 May to 15:43 on Thu 13 May.",
          "fact": "1999-05-12T23:01:46Z → 1999-05-13T19:42:42Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:45–20:17 on the 12th, 18:45–20:17 on the 13th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 75 of 91 minutes on the 12th and 0 of 91 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 995 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Wednesday 12 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-05-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Wednesday 12 May. Trayodaśī runs from 19:02 on Wed 12 May to 15:43 on Thu 13 May and covers 75 of 91 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-05-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-05-13",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-05-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30094,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-05-13T15:42:42-04:00",
          "utc": "1999-05-13T19:42:42Z",
          "ms": 926624561785.8661
        },
        "end": {
          "local": "1999-05-14T12:00:05-04:00",
          "utc": "1999-05-14T16:00:05Z",
          "ms": 926697605337.1274
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-05-13T15:42:42-04:00",
          "utc": "1999-05-13T19:42:42Z",
          "ms": 926624561785.8661
        },
        "end": {
          "local": "1999-05-14T12:00:05-04:00",
          "utc": "1999-05-14T16:00:05Z",
          "ms": 926697605337.1274
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-05-13",
          "window": {
            "start": {
              "local": "1999-05-14T00:04:16-04:00",
              "utc": "1999-05-14T04:04:16Z",
              "ms": 926654655881.9491
            },
            "end": {
              "local": "1999-05-14T00:52:16-04:00",
              "utc": "1999-05-14T04:52:16Z",
              "ms": 926657535881.9491
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-05-14",
          "window": {
            "start": {
              "local": "1999-05-15T00:04:16-04:00",
              "utc": "1999-05-15T04:04:16Z",
              "ms": 926741056084.7285
            },
            "end": {
              "local": "1999-05-15T00:52:16-04:00",
              "utc": "1999-05-15T04:52:16Z",
              "ms": 926743936084.7285
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 15:43 on Thu 13 May to 12:00 on Fri 14 May.",
          "fact": "1999-05-13T19:42:42Z → 1999-05-14T16:00:05Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:04–00:52 on the 13th, 00:04–00:52 on the 14th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 30094 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Thursday 13 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-05-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Thursday 13 May. Caturdaśī runs from 15:43 on Thu 13 May to 12:00 on Fri 14 May and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-05-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vinayaka-chaturthi?on=1999-05-18",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-05-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18793,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-05-17T20:59:00-04:00",
          "utc": "1999-05-18T00:59:00Z",
          "ms": 926989139917.3752
        },
        "end": {
          "local": "1999-05-18T18:05:39-04:00",
          "utc": "1999-05-18T22:05:39Z",
          "ms": 927065139394.7544
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": true,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-05-17T20:59:00-04:00",
          "utc": "1999-05-18T00:59:00Z",
          "ms": 926989139917.3752
        },
        "end": {
          "local": "1999-05-18T18:05:39-04:00",
          "utc": "1999-05-18T22:05:39Z",
          "ms": 927065139394.7544
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-05-17",
          "window": {
            "start": {
              "local": "1999-05-17T12:04:25-04:00",
              "utc": "1999-05-17T16:04:25Z",
              "ms": 926957064672.2932
            },
            "end": {
              "local": "1999-05-17T12:52:25-04:00",
              "utc": "1999-05-17T16:52:25Z",
              "ms": 926959944672.2932
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-05-18",
          "window": {
            "start": {
              "local": "1999-05-18T12:04:27-04:00",
              "utc": "1999-05-18T16:04:27Z",
              "ms": 927043466713.5793
            },
            "end": {
              "local": "1999-05-18T12:52:27-04:00",
              "utc": "1999-05-18T16:52:27Z",
              "ms": 927046346713.5793
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 20:59 on Mon 17 May to 18:06 on Tue 18 May.",
          "fact": "1999-05-18T00:59:00Z → 1999-05-18T22:05:39Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 17th, 12:04–12:52 on the 18th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 18793 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Valencia, 1999: Tuesday 18 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-05-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vināyaka Caturthī 1999 falls on Tuesday 18 May. Caturthī runs from 20:59 on Mon 17 May to 18:06 on Tue 18 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vinayaka-chaturthi?on=1999-05-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-05-25",
      "festival": "ekadashi",
      "name": "Śukla Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-05-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34527,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-05-24T15:45:15-04:00",
          "utc": "1999-05-24T19:45:15Z",
          "ms": 927575115366.4723
        },
        "end": {
          "local": "1999-05-25T17:31:58-04:00",
          "utc": "1999-05-25T21:31:58Z",
          "ms": 927667918480.4839
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": true,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-05-24T15:45:15-04:00",
          "utc": "1999-05-24T19:45:15Z",
          "ms": 927575115366.4723
        },
        "end": {
          "local": "1999-05-25T17:31:58-04:00",
          "utc": "1999-05-25T21:31:58Z",
          "ms": 927667918480.4839
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-05-24",
          "window": {
            "start": {
              "local": "1999-05-24T06:09:49-04:00",
              "utc": "1999-05-24T10:09:49Z",
              "ms": 927540588795.5627
            },
            "end": {
              "local": "1999-05-24T06:09:49-04:00",
              "utc": "1999-05-24T10:09:49Z",
              "ms": 927540588795.5627
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-05-25",
          "window": {
            "start": {
              "local": "1999-05-25T06:09:45-04:00",
              "utc": "1999-05-25T10:09:45Z",
              "ms": 927626985032.7272
            },
            "end": {
              "local": "1999-05-25T06:09:45-04:00",
              "utc": "1999-05-25T10:09:45Z",
              "ms": 927626985032.7272
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-05-26",
        "start": {
          "local": "1999-05-26T06:09:42-04:00",
          "utc": "1999-05-26T10:09:42Z",
          "ms": 927713382033.2501
        },
        "end": {
          "local": "1999-05-26T08:41:26-04:00",
          "utc": "1999-05-26T12:41:26Z",
          "ms": 927722485870.9313
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-05-26T19:37:31-04:00",
          "utc": "1999-05-26T23:37:31Z",
          "ms": 927761850890.3539
        },
        "hari_vasara_end": {
          "local": "1999-05-26T00:03:22-04:00",
          "utc": "1999-05-26T04:03:22Z",
          "ms": 927691401582.9514
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 15:45 on Mon 24 May to 17:32 on Tue 25 May.",
          "fact": "1999-05-24T19:45:15Z → 1999-05-25T21:31:58Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:10 on the 24th and 06:10 on the 25th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 24th and is on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 34527 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Ekādaśī, Valencia, 1999: Tuesday 25 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-05-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Ekādaśī 1999 falls on Tuesday 25 May. Ekādaśī runs from 15:45 on Mon 24 May to 17:32 on Tue 25 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-05-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-05-27",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-05-27",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 2501,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-05-26T19:37:31-04:00",
          "utc": "1999-05-26T23:37:31Z",
          "ms": 927761850890.3539
        },
        "end": {
          "local": "1999-05-27T21:54:31-04:00",
          "utc": "1999-05-28T01:54:31Z",
          "ms": 927856471358.544
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": true,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-05-26T19:37:31-04:00",
          "utc": "1999-05-26T23:37:31Z",
          "ms": 927761850890.3539
        },
        "end": {
          "local": "1999-05-27T21:54:31-04:00",
          "utc": "1999-05-28T01:54:31Z",
          "ms": 927856471358.544
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-05-26",
          "window": {
            "start": {
              "local": "1999-05-26T18:48:21-04:00",
              "utc": "1999-05-26T22:48:21Z",
              "ms": 927758901221.6556
            },
            "end": {
              "local": "1999-05-26T20:19:12-04:00",
              "utc": "1999-05-27T00:19:12Z",
              "ms": 927764351697.8978
            }
          },
          "covered_min": 42,
          "window_min": 91,
          "qualifies": true
        },
        {
          "local_date": "1999-05-27",
          "window": {
            "start": {
              "local": "1999-05-27T18:48:37-04:00",
              "utc": "1999-05-27T22:48:37Z",
              "ms": 927845316593.2998
            },
            "end": {
              "local": "1999-05-27T20:19:25-04:00",
              "utc": "1999-05-28T00:19:25Z",
              "ms": 927850764822.0736
            }
          },
          "covered_min": 91,
          "window_min": 91,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 19:38 on Wed 26 May to 21:55 on Thu 27 May.",
          "fact": "1999-05-26T23:37:31Z → 1999-05-28T01:54:31Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:48–20:19 on the 26th, 18:49–20:19 on the 27th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 42 of 91 minutes on the 26th and 91 of 91 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 2501 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Thursday 27 May.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-05-27",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-27",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Thursday 27 May. Trayodaśī runs from 19:38 on Wed 26 May to 21:55 on Thu 27 May and covers all of pradoṣa that evening. It also reaches the previous evening for 42 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-05-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-06-02",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 42474,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-06-02T09:07:50-04:00",
          "utc": "1999-06-02T13:07:50Z",
          "ms": 928328870018.832
        },
        "end": {
          "local": "1999-06-03T10:46:08-04:00",
          "utc": "1999-06-03T14:46:08Z",
          "ms": 928421168329.2004
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": true,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-02T09:07:50-04:00",
          "utc": "1999-06-02T13:07:50Z",
          "ms": 928328870018.832
        },
        "end": {
          "local": "1999-06-03T10:46:08-04:00",
          "utc": "1999-06-03T14:46:08Z",
          "ms": 928421168329.2004
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-06-02",
          "window": {
            "start": {
              "local": "1999-06-02T21:46:03-04:00",
              "utc": "1999-06-03T01:46:03Z",
              "ms": 928374362999.1394
            },
            "end": {
              "local": "1999-06-02T21:46:03-04:00",
              "utc": "1999-06-03T01:46:03Z",
              "ms": 928374362999.1394
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-06-03",
          "window": {
            "start": {
              "local": "1999-06-03T22:34:03-04:00",
              "utc": "1999-06-04T02:34:03Z",
              "ms": 928463642535.5034
            },
            "end": {
              "local": "1999-06-03T22:34:03-04:00",
              "utc": "1999-06-04T02:34:03Z",
              "ms": 928463642535.5034
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 09:08 on Wed 2 Jun to 10:46 on Thu 3 Jun.",
          "fact": "1999-06-02T13:07:50Z → 1999-06-03T14:46:08Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:46 on the 2nd and 22:34 on the 3rd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 2nd and is not on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 42474 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Wednesday 2 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Wednesday 2 June. Caturthī runs from 09:08 on Wed 2 Jun to 10:46 on Thu 3 Jun and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-06-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-06-09",
      "festival": "ekadashi",
      "name": "Kṛṣṇa Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2459,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-06-09T08:15:45-04:00",
          "utc": "1999-06-09T12:15:45Z",
          "ms": 928930544990.5703
        },
        "end": {
          "local": "1999-06-10T05:29:26-04:00",
          "utc": "1999-06-10T09:29:26Z",
          "ms": 929006965517.292
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": true,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-09T08:15:45-04:00",
          "utc": "1999-06-09T12:15:45Z",
          "ms": 928930544990.5703
        },
        "end": {
          "local": "1999-06-10T05:29:26-04:00",
          "utc": "1999-06-10T09:29:26Z",
          "ms": 929006965517.292
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-06-09",
          "window": {
            "start": {
              "local": "1999-06-09T06:10:17-04:00",
              "utc": "1999-06-09T10:10:17Z",
              "ms": 928923016785.4783
            },
            "end": {
              "local": "1999-06-09T06:10:17-04:00",
              "utc": "1999-06-09T10:10:17Z",
              "ms": 928923016785.4783
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-06-10",
          "window": {
            "start": {
              "local": "1999-06-10T06:10:24-04:00",
              "utc": "1999-06-10T10:10:24Z",
              "ms": 929009424351.3861
            },
            "end": {
              "local": "1999-06-10T06:10:24-04:00",
              "utc": "1999-06-10T10:10:24Z",
              "ms": 929009424351.3861
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "parana": {
        "local_date": "1999-06-10",
        "start": {
          "local": "1999-06-10T13:47:35-04:00",
          "utc": "1999-06-10T17:47:35Z",
          "ms": 929036854573.8036
        },
        "end": {
          "local": "1999-06-10T16:19:58-04:00",
          "utc": "1999-06-10T20:19:58Z",
          "ms": 929045997981.2761
        },
        "basis": "aparahna",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-06-11T02:13:27-04:00",
          "utc": "1999-06-11T06:13:27Z",
          "ms": 929081607428.5042
        },
        "hari_vasara_end": {
          "local": "1999-06-10T10:40:26-04:00",
          "utc": "1999-06-10T14:40:26Z",
          "ms": 929025625995.095
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 08:16 on Wed 9 Jun to 05:29 on Thu 10 Jun.",
          "fact": "1999-06-09T12:15:45Z → 1999-06-10T09:29:26Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:10 on the 9th and 06:10 on the 10th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 9th and is not on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Neither sunrise qualifies. The day the tithi falls on is taken.",
          "fact": "priority: paraviddha → tithi-day · margin 2459 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Ekādaśī, Valencia, 1999: Wednesday 9 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Ekādaśī 1999 falls on Wednesday 9 June. Ekādaśī runs from 08:16 on Wed 9 Jun to 05:29 on Thu 10 Jun, and is current at sunrise on neither day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-06-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-06-11",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8030,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-06-11T02:13:27-04:00",
          "utc": "1999-06-11T06:13:27Z",
          "ms": 929081607428.5042
        },
        "end": {
          "local": "1999-06-11T22:36:51-04:00",
          "utc": "1999-06-12T02:36:51Z",
          "ms": 929155011442.7278
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": true,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-11T02:13:27-04:00",
          "utc": "1999-06-11T06:13:27Z",
          "ms": 929081607428.5042
        },
        "end": {
          "local": "1999-06-11T22:36:51-04:00",
          "utc": "1999-06-12T02:36:51Z",
          "ms": 929155011442.7278
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-06-10",
          "window": {
            "start": {
              "local": "1999-06-10T18:52:21-04:00",
              "utc": "1999-06-10T22:52:21Z",
              "ms": 929055141388.7487
            },
            "end": {
              "local": "1999-06-10T20:22:47-04:00",
              "utc": "1999-06-11T00:22:47Z",
              "ms": 929060566872.0797
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        },
        {
          "local_date": "1999-06-11",
          "window": {
            "start": {
              "local": "1999-06-11T18:52:37-04:00",
              "utc": "1999-06-11T22:52:37Z",
              "ms": 929141557339.2439
            },
            "end": {
              "local": "1999-06-11T20:23:02-04:00",
              "utc": "1999-06-12T00:23:02Z",
              "ms": 929146981860.6355
            }
          },
          "covered_min": 90,
          "window_min": 90,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 02:13 on Fri 11 Jun to 22:37 on Fri 11 Jun.",
          "fact": "1999-06-11T06:13:27Z → 1999-06-12T02:36:51Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:23 on the 10th, 18:53–20:23 on the 11th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 90 minutes on the 10th and 90 of 90 on the 11th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 8030 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Friday 11 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Friday 11 June. Trayodaśī runs from 02:13 on Fri 11 Jun to 22:37 on Fri 11 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-06-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-06-11",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5448,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-06-11T22:36:51-04:00",
          "utc": "1999-06-12T02:36:51Z",
          "ms": 929155011442.7278
        },
        "end": {
          "local": "1999-06-12T18:49:45-04:00",
          "utc": "1999-06-12T22:49:45Z",
          "ms": 929227785212.3899
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": true,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-11T22:36:51-04:00",
          "utc": "1999-06-12T02:36:51Z",
          "ms": 929155011442.7278
        },
        "end": {
          "local": "1999-06-12T18:49:45-04:00",
          "utc": "1999-06-12T22:49:45Z",
          "ms": 929227785212.3899
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-06-11",
          "window": {
            "start": {
              "local": "1999-06-12T00:07:39-04:00",
              "utc": "1999-06-12T04:07:39Z",
              "ms": 929160459294.4622
            },
            "end": {
              "local": "1999-06-12T00:55:39-04:00",
              "utc": "1999-06-12T04:55:39Z",
              "ms": 929163339294.4622
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-06-12",
          "window": {
            "start": {
              "local": "1999-06-13T00:07:52-04:00",
              "utc": "1999-06-13T04:07:52Z",
              "ms": 929246871839.9574
            },
            "end": {
              "local": "1999-06-13T00:55:52-04:00",
              "utc": "1999-06-13T04:55:52Z",
              "ms": 929249751839.9574
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 22:37 on Fri 11 Jun to 18:50 on Sat 12 Jun.",
          "fact": "1999-06-12T02:36:51Z → 1999-06-12T22:49:45Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:08–00:56 on the 11th, 00:08–00:56 on the 12th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 5448 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Friday 11 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Friday 11 June. Caturdaśī runs from 22:37 on Fri 11 Jun to 18:50 on Sat 12 Jun and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-06-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/rambha-tritiya",
      "festival": "rambha-tritiya",
      "name": "Rambhā Tṛtīyā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14155,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-06-15T08:12:30-04:00",
          "utc": "1999-06-15T12:12:30Z",
          "ms": 929448749906.3755
        },
        "end": {
          "local": "1999-06-16T05:29:01-04:00",
          "utc": "1999-06-16T09:29:01Z",
          "ms": 929525341229.3845
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-15T08:12:30-04:00",
          "utc": "1999-06-15T12:12:30Z",
          "ms": 929448749906.3755
        },
        "end": {
          "local": "1999-06-16T05:29:01-04:00",
          "utc": "1999-06-16T09:29:01Z",
          "ms": 929525341229.3845
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-06-15",
          "window": {
            "start": {
              "local": "1999-06-15T12:08:25-04:00",
              "utc": "1999-06-15T16:08:25Z",
              "ms": 929462905018.9573
            },
            "end": {
              "local": "1999-06-15T12:56:25-04:00",
              "utc": "1999-06-15T16:56:25Z",
              "ms": 929465785018.9573
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-06-16",
          "window": {
            "start": {
              "local": "1999-06-16T12:08:38-04:00",
              "utc": "1999-06-16T16:08:38Z",
              "ms": 929549317866.541
            },
            "end": {
              "local": "1999-06-16T12:56:38-04:00",
              "utc": "1999-06-16T16:56:38Z",
              "ms": 929552197866.541
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 08:12 on Tue 15 Jun to 05:29 on Wed 16 Jun.",
          "fact": "1999-06-15T12:12:30Z → 1999-06-16T09:29:01Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 15th, 12:09–12:57 on the 16th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 14155 s"
        },
        {
          "step": "ruling",
          "text": "Rambhā Tṛtīyā, Valencia, 1999: Tuesday 15 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rambha-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Rambha trtiya (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Rambhā Tṛtīyā 1999 falls on Tuesday 15 June. Tṛtīyā runs from 08:12 on Tue 15 Jun to 05:29 on Wed 16 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/rambha-tritiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vinayaka-chaturthi?on=1999-06-16",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23977,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-06-16T05:29:01-04:00",
          "utc": "1999-06-16T09:29:01Z",
          "ms": 929525341229.3845
        },
        "end": {
          "local": "1999-06-17T03:24:33-04:00",
          "utc": "1999-06-17T07:24:33Z",
          "ms": 929604273488.098
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-16T05:29:01-04:00",
          "utc": "1999-06-16T09:29:01Z",
          "ms": 929525341229.3845
        },
        "end": {
          "local": "1999-06-17T03:24:33-04:00",
          "utc": "1999-06-17T07:24:33Z",
          "ms": 929604273488.098
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-06-16",
          "window": {
            "start": {
              "local": "1999-06-16T12:08:38-04:00",
              "utc": "1999-06-16T16:08:38Z",
              "ms": 929549317866.541
            },
            "end": {
              "local": "1999-06-16T12:56:38-04:00",
              "utc": "1999-06-16T16:56:38Z",
              "ms": 929552197866.541
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-06-17",
          "window": {
            "start": {
              "local": "1999-06-17T12:08:51-04:00",
              "utc": "1999-06-17T16:08:51Z",
              "ms": 929635730787.8484
            },
            "end": {
              "local": "1999-06-17T12:56:51-04:00",
              "utc": "1999-06-17T16:56:51Z",
              "ms": 929638610787.8484
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 05:29 on Wed 16 Jun to 03:25 on Thu 17 Jun.",
          "fact": "1999-06-16T09:29:01Z → 1999-06-17T07:24:33Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 16th, 12:09–12:57 on the 17th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 23977 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Valencia, 1999: Wednesday 16 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vināyaka Caturthī 1999 falls on Wednesday 16 June. Caturthī runs from 05:29 on Wed 16 Jun to 03:25 on Thu 17 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vinayaka-chaturthi?on=1999-06-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/aranya-gauri-vrata",
      "festival": "aranya-gauri-vrata",
      "name": "Araṇya Gaurī Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36247,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-06-18T02:04:57-04:00",
          "utc": "1999-06-18T06:04:57Z",
          "ms": 929685896740.0815
        },
        "end": {
          "local": "1999-06-19T01:33:07-04:00",
          "utc": "1999-06-19T05:33:07Z",
          "ms": 929770386701.6965
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-18T02:04:57-04:00",
          "utc": "1999-06-18T06:04:57Z",
          "ms": 929685896740.0815
        },
        "end": {
          "local": "1999-06-19T01:33:07-04:00",
          "utc": "1999-06-19T05:33:07Z",
          "ms": 929770386701.6965
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-06-18",
          "window": {
            "start": {
              "local": "1999-06-18T12:09:04-04:00",
              "utc": "1999-06-18T16:09:04Z",
              "ms": 929722143756.5981
            },
            "end": {
              "local": "1999-06-18T12:57:04-04:00",
              "utc": "1999-06-18T16:57:04Z",
              "ms": 929725023756.5981
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-06-19",
          "window": {
            "start": {
              "local": "1999-06-19T12:09:17-04:00",
              "utc": "1999-06-19T16:09:17Z",
              "ms": 929808556747.6616
            },
            "end": {
              "local": "1999-06-19T12:57:17-04:00",
              "utc": "1999-06-19T16:57:17Z",
              "ms": 929811436747.6616
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 02:05 on Fri 18 Jun to 01:33 on Sat 19 Jun.",
          "fact": "1999-06-18T06:04:57Z → 1999-06-19T05:33:07Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 18th, 12:09–12:57 on the 19th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 36247 s"
        },
        {
          "step": "ruling",
          "text": "Araṇya Gaurī Vrata, Valencia, 1999: Friday 18 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "aranya-gauri-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Araṇya Gaurī Vrata 1999 falls on Friday 18 June. Ṣaṣṭhī runs from 02:05 on Fri 18 Jun to 01:33 on Sat 19 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/aranya-gauri-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/skanda-shashthi-jyaishtha",
      "festival": "skanda-shashthi-jyaishtha",
      "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36247,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-06-18T02:04:57-04:00",
          "utc": "1999-06-18T06:04:57Z",
          "ms": 929685896740.0815
        },
        "end": {
          "local": "1999-06-19T01:33:07-04:00",
          "utc": "1999-06-19T05:33:07Z",
          "ms": 929770386701.6965
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-18T02:04:57-04:00",
          "utc": "1999-06-18T06:04:57Z",
          "ms": 929685896740.0815
        },
        "end": {
          "local": "1999-06-19T01:33:07-04:00",
          "utc": "1999-06-19T05:33:07Z",
          "ms": 929770386701.6965
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-06-18",
          "window": {
            "start": {
              "local": "1999-06-18T12:09:04-04:00",
              "utc": "1999-06-18T16:09:04Z",
              "ms": 929722143756.5981
            },
            "end": {
              "local": "1999-06-18T12:57:04-04:00",
              "utc": "1999-06-18T16:57:04Z",
              "ms": 929725023756.5981
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-06-19",
          "window": {
            "start": {
              "local": "1999-06-19T12:09:17-04:00",
              "utc": "1999-06-19T16:09:17Z",
              "ms": 929808556747.6616
            },
            "end": {
              "local": "1999-06-19T12:57:17-04:00",
              "utc": "1999-06-19T16:57:17Z",
              "ms": 929811436747.6616
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 02:05 on Fri 18 Jun to 01:33 on Sat 19 Jun.",
          "fact": "1999-06-18T06:04:57Z → 1999-06-19T05:33:07Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 18th, 12:09–12:57 on the 19th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 36247 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Valencia, 1999: Friday 18 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "skanda-shashthi-jyaishtha",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1999 falls on Friday 18 June. Ṣaṣṭhī runs from 02:05 on Fri 18 Jun to 01:33 on Sat 19 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/skanda-shashthi-jyaishtha",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-06-24",
      "festival": "ekadashi",
      "name": "Nirjalā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 578,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-06-23T06:22:26-04:00",
          "utc": "1999-06-23T10:22:26Z",
          "ms": 930133346341.8313
        },
        "end": {
          "local": "1999-06-24T08:39:28-04:00",
          "utc": "1999-06-24T12:39:28Z",
          "ms": 930227968071.9729
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-23T06:22:26-04:00",
          "utc": "1999-06-23T10:22:26Z",
          "ms": 930133346341.8313
        },
        "end": {
          "local": "1999-06-24T08:39:28-04:00",
          "utc": "1999-06-24T12:39:28Z",
          "ms": 930227968071.9729
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-06-23",
          "window": {
            "start": {
              "local": "1999-06-23T06:12:48-04:00",
              "utc": "1999-06-23T10:12:48Z",
              "ms": 930132767852.2397
            },
            "end": {
              "local": "1999-06-23T06:12:48-04:00",
              "utc": "1999-06-23T10:12:48Z",
              "ms": 930132767852.2397
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-06-24",
          "window": {
            "start": {
              "local": "1999-06-24T06:13:01-04:00",
              "utc": "1999-06-24T10:13:01Z",
              "ms": 930219181495.0027
            },
            "end": {
              "local": "1999-06-24T06:13:01-04:00",
              "utc": "1999-06-24T10:13:01Z",
              "ms": 930219181495.0027
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-06-25",
        "start": {
          "local": "1999-06-25T06:13:15-04:00",
          "utc": "1999-06-25T10:13:15Z",
          "ms": 930305595393.9224
        },
        "end": {
          "local": "1999-06-25T08:45:47-04:00",
          "utc": "1999-06-25T12:45:47Z",
          "ms": 930314746780.6326
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-06-25T11:02:55-04:00",
          "utc": "1999-06-25T15:02:55Z",
          "ms": 930322974830.4047
        },
        "hari_vasara_end": {
          "local": "1999-06-24T15:15:20-04:00",
          "utc": "1999-06-24T19:15:20Z",
          "ms": 930251719761.5808
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:22 on Wed 23 Jun to 08:39 on Thu 24 Jun.",
          "fact": "1999-06-23T10:22:26Z → 1999-06-24T12:39:28Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:13 on the 23rd and 06:13 on the 24th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 23rd and is on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 578 s"
        },
        {
          "step": "ruling",
          "text": "Nirjalā Ekādaśī, Valencia, 1999: Thursday 24 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Nirjalā Ekādaśī 1999 falls on Thursday 24 June. Ekādaśī runs from 06:22 on Wed 23 Jun to 08:39 on Thu 24 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-06-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shri-rama-dvadashi",
      "festival": "shri-rama-dvadashi",
      "name": "Śrī Rāma Dvādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4059,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-06-24T08:39:28-04:00",
          "utc": "1999-06-24T12:39:28Z",
          "ms": 930227968071.9729
        },
        "end": {
          "local": "1999-06-25T11:02:55-04:00",
          "utc": "1999-06-25T15:02:55Z",
          "ms": 930322974830.4047
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-24T08:39:28-04:00",
          "utc": "1999-06-24T12:39:28Z",
          "ms": 930227968071.9729
        },
        "end": {
          "local": "1999-06-25T11:02:55-04:00",
          "utc": "1999-06-25T15:02:55Z",
          "ms": 930322974830.4047
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-06-24",
          "window": {
            "start": {
              "local": "1999-06-24T12:10:21-04:00",
              "utc": "1999-06-24T16:10:21Z",
              "ms": 930240621218.4756
            },
            "end": {
              "local": "1999-06-24T12:58:21-04:00",
              "utc": "1999-06-24T16:58:21Z",
              "ms": 930243501218.4756
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-06-25",
          "window": {
            "start": {
              "local": "1999-06-25T12:10:34-04:00",
              "utc": "1999-06-25T16:10:34Z",
              "ms": 930327033860.6978
            },
            "end": {
              "local": "1999-06-25T12:58:34-04:00",
              "utc": "1999-06-25T16:58:34Z",
              "ms": 930329913860.6978
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 08:39 on Thu 24 Jun to 11:03 on Fri 25 Jun.",
          "fact": "1999-06-24T12:39:28Z → 1999-06-25T15:02:55Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 24th, 12:11–12:59 on the 25th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 4059 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Rāma Dvādaśī, Valencia, 1999: Thursday 24 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shri-rama-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śrī Rāma Dvādaśī 1999 falls on Thursday 24 June. Dvādaśī runs from 08:39 on Thu 24 Jun to 11:03 on Fri 25 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shri-rama-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-06-25",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19895,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-06-25T11:02:55-04:00",
          "utc": "1999-06-25T15:02:55Z",
          "ms": 930322974830.4047
        },
        "end": {
          "local": "1999-06-26T13:24:28-04:00",
          "utc": "1999-06-26T17:24:28Z",
          "ms": 930417868352.8892
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-25T11:02:55-04:00",
          "utc": "1999-06-25T15:02:55Z",
          "ms": 930322974830.4047
        },
        "end": {
          "local": "1999-06-26T13:24:28-04:00",
          "utc": "1999-06-26T17:24:28Z",
          "ms": 930417868352.8892
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-06-25",
          "window": {
            "start": {
              "local": "1999-06-25T18:55:52-04:00",
              "utc": "1999-06-25T22:55:52Z",
              "ms": 930351352327.4733
            },
            "end": {
              "local": "1999-06-25T20:26:13-04:00",
              "utc": "1999-06-26T00:26:13Z",
              "ms": 930356773287.4188
            }
          },
          "covered_min": 90,
          "window_min": 90,
          "qualifies": true
        },
        {
          "local_date": "1999-06-26",
          "window": {
            "start": {
              "local": "1999-06-26T18:56:03-04:00",
              "utc": "1999-06-26T22:56:03Z",
              "ms": 930437763212.2546
            },
            "end": {
              "local": "1999-06-26T20:26:25-04:00",
              "utc": "1999-06-27T00:26:25Z",
              "ms": 930443184633.6515
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 11:03 on Fri 25 Jun to 13:24 on Sat 26 Jun.",
          "fact": "1999-06-25T15:02:55Z → 1999-06-26T17:24:28Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:26 on the 25th, 18:56–20:26 on the 26th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 90 of 90 minutes on the 25th and 0 of 90 on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 19895 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Friday 25 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Friday 25 June. Trayodaśī runs from 11:03 on Fri 25 Jun to 13:24 on Sat 26 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-06-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vata-savitri-vrata",
      "festival": "vata-savitri-vrata",
      "name": "Vaṭa Sāvitrī Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-06-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4736,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-06-27T15:37:37-04:00",
          "utc": "1999-06-27T19:37:37Z",
          "ms": 930512257397.7489
        },
        "end": {
          "local": "1999-06-28T17:37:27-04:00",
          "utc": "1999-06-28T21:37:27Z",
          "ms": 930605846970.0487
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-06-27T15:37:37-04:00",
          "utc": "1999-06-27T19:37:37Z",
          "ms": 930512257397.7489
        },
        "end": {
          "local": "1999-06-28T17:37:27-04:00",
          "utc": "1999-06-28T21:37:27Z",
          "ms": 930605846970.0487
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-06-27",
          "window": {
            "start": {
              "local": "1999-06-27T18:56:14-04:00",
              "utc": "1999-06-27T22:56:14Z",
              "ms": 930524173577.702
            },
            "end": {
              "local": "1999-06-27T20:26:36-04:00",
              "utc": "1999-06-28T00:26:36Z",
              "ms": 930529595555.2708
            }
          },
          "covered_min": 90,
          "window_min": 90,
          "qualifies": true
        },
        {
          "local_date": "1999-06-28",
          "window": {
            "start": {
              "local": "1999-06-28T18:56:23-04:00",
              "utc": "1999-06-28T22:56:23Z",
              "ms": 930610583405.9559
            },
            "end": {
              "local": "1999-06-28T20:26:46-04:00",
              "utc": "1999-06-29T00:26:46Z",
              "ms": 930616006033.9718
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 15:38 on Sun 27 Jun to 17:37 on Mon 28 Jun.",
          "fact": "1999-06-27T19:37:37Z → 1999-06-28T21:37:27Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:27 on the 27th, 18:56–20:27 on the 28th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during pradoṣa. It covers 90 of 90 minutes on the 27th and 0 of 90 on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 4736 s"
        },
        {
          "step": "ruling",
          "text": "Vaṭa Sāvitrī Vrata, Valencia, 1999: Sunday 27 June.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vata-savitri-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Vata-savitri vrata (Deccan) (pradosavyapini, purvaviddha), Snanayatra (Bengal & Orissa) (paraviddha)."
          }
        ],
        "kaala": "pradosha",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-06-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vaṭa Sāvitrī Vrata 1999 falls on Sunday 27 June. Pūrṇimā runs from 15:38 on Sun 27 Jun to 17:37 on Mon 28 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vata-savitri-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-07-02",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 422,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-07-01T21:41:08-04:00",
          "utc": "1999-07-02T01:41:08Z",
          "ms": 930879668325.1185
        },
        "end": {
          "local": "1999-07-02T22:13:06-04:00",
          "utc": "1999-07-03T02:13:06Z",
          "ms": 930967986009.3954
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-01T21:41:08-04:00",
          "utc": "1999-07-02T01:41:08Z",
          "ms": 930879668325.1185
        },
        "end": {
          "local": "1999-07-02T22:13:06-04:00",
          "utc": "1999-07-03T02:13:06Z",
          "ms": 930967986009.3954
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-07-01",
          "window": {
            "start": {
              "local": "1999-07-01T21:19:40-04:00",
              "utc": "1999-07-02T01:19:40Z",
              "ms": 930878380306.1694
            },
            "end": {
              "local": "1999-07-01T21:19:40-04:00",
              "utc": "1999-07-02T01:19:40Z",
              "ms": 930878380306.1694
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-07-02",
          "window": {
            "start": {
              "local": "1999-07-02T22:06:04-04:00",
              "utc": "1999-07-03T02:06:04Z",
              "ms": 930967564036.2103
            },
            "end": {
              "local": "1999-07-02T22:06:04-04:00",
              "utc": "1999-07-03T02:06:04Z",
              "ms": 930967564036.2103
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 21:41 on Thu 1 Jul to 22:13 on Fri 2 Jul.",
          "fact": "1999-07-02T01:41:08Z → 1999-07-03T02:13:06Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:20 on the 1st and 22:06 on the 2nd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 1st and is on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 422 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Friday 2 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-02",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Friday 2 July. Caturthī runs from 21:41 on Thu 1 Jul to 22:13 on Fri 2 Jul and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-07-02",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-07-09",
      "festival": "ekadashi",
      "name": "Yoginī Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18229,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-07-08T14:18:50-04:00",
          "utc": "1999-07-08T18:18:50Z",
          "ms": 931457930167.8739
        },
        "end": {
          "local": "1999-07-09T11:20:34-04:00",
          "utc": "1999-07-09T15:20:34Z",
          "ms": 931533634146.4327
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-08T14:18:50-04:00",
          "utc": "1999-07-08T18:18:50Z",
          "ms": 931457930167.8739
        },
        "end": {
          "local": "1999-07-09T11:20:34-04:00",
          "utc": "1999-07-09T15:20:34Z",
          "ms": 931533634146.4327
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-07-08",
          "window": {
            "start": {
              "local": "1999-07-08T06:16:30-04:00",
              "utc": "1999-07-08T10:16:30Z",
              "ms": 931428989689.3359
            },
            "end": {
              "local": "1999-07-08T06:16:30-04:00",
              "utc": "1999-07-08T10:16:30Z",
              "ms": 931428989689.3359
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-07-09",
          "window": {
            "start": {
              "local": "1999-07-09T06:16:45-04:00",
              "utc": "1999-07-09T10:16:45Z",
              "ms": 931515404945.2974
            },
            "end": {
              "local": "1999-07-09T06:16:45-04:00",
              "utc": "1999-07-09T10:16:45Z",
              "ms": 931515404945.2974
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-07-10",
        "start": {
          "local": "1999-07-10T06:17:00-04:00",
          "utc": "1999-07-10T10:17:00Z",
          "ms": 931601820134.2423
        },
        "end": {
          "local": "1999-07-10T08:07:29-04:00",
          "utc": "1999-07-10T12:07:29Z",
          "ms": 931608449200.7272
        },
        "basis": "pratah",
        "ends_with_dvadashi": true,
        "dvadashi_end": {
          "local": "1999-07-10T08:07:29-04:00",
          "utc": "1999-07-10T12:07:29Z",
          "ms": 931608449200.7272
        },
        "hari_vasara_end": {
          "local": "1999-07-09T16:32:18-04:00",
          "utc": "1999-07-09T20:32:18Z",
          "ms": 931552337910.0063
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 14:19 on Thu 8 Jul to 11:21 on Fri 9 Jul.",
          "fact": "1999-07-08T18:18:50Z → 1999-07-09T15:20:34Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:16 on the 8th and 06:17 on the 9th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 8th and is on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 18229 s"
        },
        {
          "step": "ruling",
          "text": "Yoginī Ekādaśī, Valencia, 1999: Friday 9 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Yoginī Ekādaśī 1999 falls on Friday 9 July. Ekādaśī runs from 14:19 on Thu 8 Jul to 11:21 on Fri 9 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-07-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-07-10",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29973,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-07-10T08:07:29-04:00",
          "utc": "1999-07-10T12:07:29Z",
          "ms": 931608449200.7272
        },
        "end": {
          "local": "1999-07-11T04:47:45-04:00",
          "utc": "1999-07-11T08:47:45Z",
          "ms": 931682864642.701
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-10T08:07:29-04:00",
          "utc": "1999-07-10T12:07:29Z",
          "ms": 931608449200.7272
        },
        "end": {
          "local": "1999-07-11T04:47:45-04:00",
          "utc": "1999-07-11T08:47:45Z",
          "ms": 931682864642.701
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-07-09",
          "window": {
            "start": {
              "local": "1999-07-09T18:57:32-04:00",
              "utc": "1999-07-09T22:57:32Z",
              "ms": 931561051505.1864
            },
            "end": {
              "local": "1999-07-09T20:28:07-04:00",
              "utc": "1999-07-10T00:28:07Z",
              "ms": 931566487322.3938
            }
          },
          "covered_min": 0,
          "window_min": 91,
          "qualifies": false
        },
        {
          "local_date": "1999-07-10",
          "window": {
            "start": {
              "local": "1999-07-10T18:57:34-04:00",
              "utc": "1999-07-10T22:57:34Z",
              "ms": 931647453667.584
            },
            "end": {
              "local": "1999-07-10T20:28:11-04:00",
              "utc": "1999-07-11T00:28:11Z",
              "ms": 931652891209.3365
            }
          },
          "covered_min": 91,
          "window_min": 91,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 08:07 on Sat 10 Jul to 04:48 on Sun 11 Jul.",
          "fact": "1999-07-10T12:07:29Z → 1999-07-11T08:47:45Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:58–20:28 on the 9th, 18:58–20:28 on the 10th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 91 minutes on the 9th and 91 of 91 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29973 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Saturday 10 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Saturday 10 July. Trayodaśī runs from 08:07 on Sat 10 Jul to 04:48 on Sun 11 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-07-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-07-11",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1718,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-07-11T04:47:45-04:00",
          "utc": "1999-07-11T08:47:45Z",
          "ms": 931682864642.701
        },
        "end": {
          "local": "1999-07-12T01:30:11-04:00",
          "utc": "1999-07-12T05:30:11Z",
          "ms": 931757410981.5421
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-11T04:47:45-04:00",
          "utc": "1999-07-11T08:47:45Z",
          "ms": 931682864642.701
        },
        "end": {
          "local": "1999-07-12T01:30:11-04:00",
          "utc": "1999-07-12T05:30:11Z",
          "ms": 931757410981.5421
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-07-10",
          "window": {
            "start": {
              "local": "1999-07-11T00:13:24-04:00",
              "utc": "1999-07-11T04:13:24Z",
              "ms": 931666404449.1562
            },
            "end": {
              "local": "1999-07-11T01:01:24-04:00",
              "utc": "1999-07-11T05:01:24Z",
              "ms": 931669284449.1562
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-07-11",
          "window": {
            "start": {
              "local": "1999-07-12T00:13:33-04:00",
              "utc": "1999-07-12T04:13:33Z",
              "ms": 931752812649.8284
            },
            "end": {
              "local": "1999-07-12T01:01:33-04:00",
              "utc": "1999-07-12T05:01:33Z",
              "ms": 931755692649.8284
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 04:48 on Sun 11 Jul to 01:30 on Mon 12 Jul.",
          "fact": "1999-07-11T08:47:45Z → 1999-07-12T05:30:11Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:13–01:01 on the 10th, 00:14–01:02 on the 11th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 1718 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Sunday 11 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Sunday 11 July. Caturdaśī runs from 04:48 on Sun 11 Jul to 01:30 on Mon 12 Jul and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-07-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/rathayatra",
      "festival": "rathayatra",
      "name": "Rathayātrā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15560,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1999-07-13T19:38:06-04:00",
          "utc": "1999-07-13T23:38:06Z",
          "ms": 931909085922.7474
        },
        "end": {
          "local": "1999-07-14T17:21:07-04:00",
          "utc": "1999-07-14T21:21:07Z",
          "ms": 931987267449.5486
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-13T19:38:06-04:00",
          "utc": "1999-07-13T23:38:06Z",
          "ms": 931909085922.7474
        },
        "end": {
          "local": "1999-07-14T17:21:07-04:00",
          "utc": "1999-07-14T21:21:07Z",
          "ms": 931987267449.5486
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-07-13",
          "window": {
            "start": {
              "local": "1999-07-13T12:13:40-04:00",
              "utc": "1999-07-13T16:13:40Z",
              "ms": 931882420347.9355
            },
            "end": {
              "local": "1999-07-13T13:01:40-04:00",
              "utc": "1999-07-13T17:01:40Z",
              "ms": 931885300347.9355
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-07-14",
          "window": {
            "start": {
              "local": "1999-07-14T12:13:47-04:00",
              "utc": "1999-07-14T16:13:47Z",
              "ms": 931968827233.1907
            },
            "end": {
              "local": "1999-07-14T13:01:47-04:00",
              "utc": "1999-07-14T17:01:47Z",
              "ms": 931971707233.1907
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 19:38 on Tue 13 Jul to 17:21 on Wed 14 Jul.",
          "fact": "1999-07-13T23:38:06Z → 1999-07-14T21:21:07Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 13th, 12:14–13:02 on the 14th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 15560 s"
        },
        {
          "step": "ruling",
          "text": "Rathayātrā, Valencia, 1999: Wednesday 14 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rathayatra",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')"
          }
        ],
        "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.",
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Rathayātrā 1999 falls on Wednesday 14 July. Dvitīyā runs from 19:38 on Tue 13 Jul to 17:21 on Wed 14 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/rathayatra",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vinayaka-chaturthi?on=1999-07-16",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5976,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-07-15T15:40:25-04:00",
          "utc": "1999-07-15T19:40:25Z",
          "ms": 932067624957.8324
        },
        "end": {
          "local": "1999-07-16T14:41:35-04:00",
          "utc": "1999-07-16T18:41:35Z",
          "ms": 932150495268.8202
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-15T15:40:25-04:00",
          "utc": "1999-07-15T19:40:25Z",
          "ms": 932067624957.8324
        },
        "end": {
          "local": "1999-07-16T14:41:35-04:00",
          "utc": "1999-07-16T18:41:35Z",
          "ms": 932150495268.8202
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-07-15",
          "window": {
            "start": {
              "local": "1999-07-15T12:13:54-04:00",
              "utc": "1999-07-15T16:13:54Z",
              "ms": 932055233620.335
            },
            "end": {
              "local": "1999-07-15T13:01:54-04:00",
              "utc": "1999-07-15T17:01:54Z",
              "ms": 932058113620.335
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-07-16",
          "window": {
            "start": {
              "local": "1999-07-16T12:13:59-04:00",
              "utc": "1999-07-16T16:13:59Z",
              "ms": 932141639492.0538
            },
            "end": {
              "local": "1999-07-16T13:01:59-04:00",
              "utc": "1999-07-16T17:01:59Z",
              "ms": 932144519492.0538
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 15:40 on Thu 15 Jul to 14:42 on Fri 16 Jul.",
          "fact": "1999-07-15T19:40:25Z → 1999-07-16T18:41:35Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 15th, 12:14–13:02 on the 16th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 5976 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Valencia, 1999: Friday 16 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vināyaka Caturthī 1999 falls on Friday 16 July. Caturthī runs from 15:40 on Thu 15 Jul to 14:42 on Fri 16 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vinayaka-chaturthi?on=1999-07-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/skanda-panchami",
      "festival": "skanda-panchami",
      "name": "Skanda Pañcamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5139,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-07-16T14:41:35-04:00",
          "utc": "1999-07-16T18:41:35Z",
          "ms": 932150495268.8202
        },
        "end": {
          "local": "1999-07-17T14:27:44-04:00",
          "utc": "1999-07-17T18:27:44Z",
          "ms": 932236064231.186
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-16T14:41:35-04:00",
          "utc": "1999-07-16T18:41:35Z",
          "ms": 932150495268.8202
        },
        "end": {
          "local": "1999-07-17T14:27:44-04:00",
          "utc": "1999-07-17T18:27:44Z",
          "ms": 932236064231.186
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-07-16",
          "window": {
            "start": {
              "local": "1999-07-16T12:13:59-04:00",
              "utc": "1999-07-16T16:13:59Z",
              "ms": 932141639492.0538
            },
            "end": {
              "local": "1999-07-16T13:01:59-04:00",
              "utc": "1999-07-16T17:01:59Z",
              "ms": 932144519492.0538
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-07-17",
          "window": {
            "start": {
              "local": "1999-07-17T12:14:05-04:00",
              "utc": "1999-07-17T16:14:05Z",
              "ms": 932228044832.9468
            },
            "end": {
              "local": "1999-07-17T13:02:05-04:00",
              "utc": "1999-07-17T17:02:05Z",
              "ms": 932230924832.9468
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 14:42 on Fri 16 Jul to 14:28 on Sat 17 Jul.",
          "fact": "1999-07-16T18:41:35Z → 1999-07-17T18:27:44Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 16th, 12:14–13:02 on the 17th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 5139 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Pañcamī, Valencia, 1999: Saturday 17 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "skanda-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Skanda pancami (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Skanda Pañcamī 1999 falls on Saturday 17 July. Pañcamī runs from 14:42 on Fri 16 Jul to 14:28 on Sat 17 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/skanda-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vivasvat-saptami",
      "festival": "vivasvat-saptami",
      "name": "Vivasvat Saptamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6995,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-07-18T14:58:45-04:00",
          "utc": "1999-07-18T18:58:45Z",
          "ms": 932324325101.7043
        },
        "end": {
          "local": "1999-07-19T16:10:52-04:00",
          "utc": "1999-07-19T20:10:52Z",
          "ms": 932415052368.0023
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-18T14:58:45-04:00",
          "utc": "1999-07-18T18:58:45Z",
          "ms": 932324325101.7043
        },
        "end": {
          "local": "1999-07-19T16:10:52-04:00",
          "utc": "1999-07-19T20:10:52Z",
          "ms": 932415052368.0023
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-07-18",
          "window": {
            "start": {
              "local": "1999-07-18T12:14:10-04:00",
              "utc": "1999-07-18T16:14:10Z",
              "ms": 932314449629.4769
            },
            "end": {
              "local": "1999-07-18T13:02:10-04:00",
              "utc": "1999-07-18T17:02:10Z",
              "ms": 932317329629.4769
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-07-19",
          "window": {
            "start": {
              "local": "1999-07-19T12:14:14-04:00",
              "utc": "1999-07-19T16:14:14Z",
              "ms": 932400853869.8274
            },
            "end": {
              "local": "1999-07-19T13:02:14-04:00",
              "utc": "1999-07-19T17:02:14Z",
              "ms": 932403733869.8274
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 14:59 on Sun 18 Jul to 16:11 on Mon 19 Jul.",
          "fact": "1999-07-18T18:58:45Z → 1999-07-19T20:10:52Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 18th, 12:14–13:02 on the 19th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 6995 s"
        },
        {
          "step": "ruling",
          "text": "Vivasvat Saptamī, Valencia, 1999: Monday 19 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vivasvat-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Vivasvat saptami (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vivasvat Saptamī 1999 falls on Monday 19 July. Saptamī runs from 14:59 on Sun 18 Jul to 16:11 on Mon 19 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vivasvat-saptami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-07-23",
      "festival": "ekadashi",
      "name": "Hariśayanī Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19884,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-07-22T22:27:28-04:00",
          "utc": "1999-07-23T02:27:28Z",
          "ms": 932696848383.046
        },
        "end": {
          "local": "1999-07-24T00:48:49-04:00",
          "utc": "1999-07-24T04:48:49Z",
          "ms": 932791728561.9569
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-22T22:27:28-04:00",
          "utc": "1999-07-23T02:27:28Z",
          "ms": 932696848383.046
        },
        "end": {
          "local": "1999-07-24T00:48:49-04:00",
          "utc": "1999-07-24T04:48:49Z",
          "ms": 932791728561.9569
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-07-23",
          "window": {
            "start": {
              "local": "1999-07-23T06:20:01-04:00",
              "utc": "1999-07-23T10:20:01Z",
              "ms": 932725200516.1454
            },
            "end": {
              "local": "1999-07-23T06:20:01-04:00",
              "utc": "1999-07-23T10:20:01Z",
              "ms": 932725200516.1454
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-07-24",
          "window": {
            "start": {
              "local": "1999-07-24T06:20:12-04:00",
              "utc": "1999-07-24T10:20:12Z",
              "ms": 932811612399.9376
            },
            "end": {
              "local": "1999-07-24T06:20:12-04:00",
              "utc": "1999-07-24T10:20:12Z",
              "ms": 932811612399.9376
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-07-24",
        "start": {
          "local": "1999-07-24T07:21:35-04:00",
          "utc": "1999-07-24T11:21:35Z",
          "ms": 932815295182.3054
        },
        "end": {
          "local": "1999-07-24T08:51:30-04:00",
          "utc": "1999-07-24T12:51:30Z",
          "ms": 932820690007.2013
        },
        "basis": "hari-vasara",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-07-25T02:59:55-04:00",
          "utc": "1999-07-25T06:59:55Z",
          "ms": 932885995043.3507
        },
        "hari_vasara_end": {
          "local": "1999-07-24T07:21:35-04:00",
          "utc": "1999-07-24T11:21:35Z",
          "ms": 932815295182.3054
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 22:27 on Thu 22 Jul to 00:49 on Sat 24 Jul.",
          "fact": "1999-07-23T02:27:28Z → 1999-07-24T04:48:49Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:20 on the 23rd and 06:20 on the 24th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 23rd and is not on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 19884 s"
        },
        {
          "step": "ruling",
          "text": "Hariśayanī Ekādaśī, Valencia, 1999: Friday 23 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Hariśayanī Ekādaśī 1999 falls on Friday 23 July. Ekādaśī runs from 22:27 on Thu 22 Jul to 00:49 on Sat 24 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-07-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-07-25",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23525,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-07-25T02:59:55-04:00",
          "utc": "1999-07-25T06:59:55Z",
          "ms": 932885995043.3507
        },
        "end": {
          "local": "1999-07-26T04:52:49-04:00",
          "utc": "1999-07-26T08:52:49Z",
          "ms": 932979168870.4291
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-25T02:59:55-04:00",
          "utc": "1999-07-25T06:59:55Z",
          "ms": 932885995043.3507
        },
        "end": {
          "local": "1999-07-26T04:52:49-04:00",
          "utc": "1999-07-26T08:52:49Z",
          "ms": 932979168870.4291
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-07-24",
          "window": {
            "start": {
              "local": "1999-07-24T18:56:40-04:00",
              "utc": "1999-07-24T22:56:40Z",
              "ms": 932857000436.2562
            },
            "end": {
              "local": "1999-07-24T20:27:50-04:00",
              "utc": "1999-07-25T00:27:50Z",
              "ms": 932862470235.5062
            }
          },
          "covered_min": 0,
          "window_min": 91,
          "qualifies": false
        },
        {
          "local_date": "1999-07-25",
          "window": {
            "start": {
              "local": "1999-07-25T18:56:30-04:00",
              "utc": "1999-07-25T22:56:30Z",
              "ms": 932943390375.8115
            },
            "end": {
              "local": "1999-07-25T20:27:43-04:00",
              "utc": "1999-07-26T00:27:43Z",
              "ms": 932948863005.6532
            }
          },
          "covered_min": 91,
          "window_min": 91,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 03:00 on Sun 25 Jul to 04:53 on Mon 26 Jul.",
          "fact": "1999-07-25T06:59:55Z → 1999-07-26T08:52:49Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:57–20:28 on the 24th, 18:57–20:28 on the 25th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 91 minutes on the 24th and 91 of 91 on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 23525 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Sunday 25 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Sunday 25 July. Trayodaśī runs from 03:00 on Sun 25 Jul to 04:53 on Mon 26 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-07-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vyasa-puja",
      "festival": "vyasa-puja",
      "name": "Vyāsa Pūjā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-27",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin",
        "absent-unstated"
      ],
      "boundary_margin_s": 81,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-07-27T06:22:07-04:00",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T07:24:47-04:00",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-27T06:22:07-04:00",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T07:24:47-04:00",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "1999-07-27",
          "window": {
            "start": {
              "local": "1999-07-27T06:20:46-04:00",
              "utc": "1999-07-27T10:20:46Z",
              "ms": 933070845899.5358
            },
            "end": {
              "local": "1999-07-27T08:51:50-04:00",
              "utc": "1999-07-27T12:51:50Z",
              "ms": 933079910268.1248
            }
          },
          "covered_min": 150,
          "window_min": 151,
          "qualifies": false
        },
        {
          "local_date": "1999-07-28",
          "window": {
            "start": {
              "local": "1999-07-28T06:20:56-04:00",
              "utc": "1999-07-28T10:20:56Z",
              "ms": 933157256324.1902
            },
            "end": {
              "local": "1999-07-28T08:51:56-04:00",
              "utc": "1999-07-28T12:51:56Z",
              "ms": 933166316095.3292
            }
          },
          "covered_min": 64,
          "window_min": 151,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 06:22 on Tue 27 Jul to 07:25 on Wed 28 Jul.",
          "fact": "1999-07-27T10:22:07Z → 1999-07-28T11:24:47Z"
        },
        {
          "step": "kaala",
          "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:21–08:52 on the 27th, 06:21–08:52 on the 28th.",
          "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 150 of 151 minutes on the 27th and 64 of 151 on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Neither morning qualifies. The day the tithi falls on is taken.",
          "fact": "priority: paraviddha → tithi-day · margin 81 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Vyāsa Pūjā, Valencia, 1999: Tuesday 27 July.",
          "fact": "confidence: boundary (margin, absent-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vyasa-puja",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)."
          }
        ],
        "kaala": "udaya-3",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-27",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-27",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Vyāsa Pūjā 1999 falls on Tuesday 27 July. Pūrṇimā runs from 06:22 on Tue 27 Jul to 07:25 on Wed 28 Jul, and reaches the first three muhūrtas after sunrise on neither day. It is 1 min 21 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vyasa-puja",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/guru-purnima",
      "festival": "guru-purnima",
      "name": "Guru Pūrṇimā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17379,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-07-27T06:22:07-04:00",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T07:24:47-04:00",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-27T06:22:07-04:00",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T07:24:47-04:00",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-07-27",
          "window": {
            "start": {
              "local": "1999-07-27T12:14:27-04:00",
              "utc": "1999-07-27T16:14:27Z",
              "ms": 933092066821.0082
            },
            "end": {
              "local": "1999-07-27T13:02:27-04:00",
              "utc": "1999-07-27T17:02:27Z",
              "ms": 933094946821.0082
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-07-28",
          "window": {
            "start": {
              "local": "1999-07-28T12:14:26-04:00",
              "utc": "1999-07-28T16:14:26Z",
              "ms": 933178465752.0376
            },
            "end": {
              "local": "1999-07-28T13:02:26-04:00",
              "utc": "1999-07-28T17:02:26Z",
              "ms": 933181345752.0376
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 06:22 on Tue 27 Jul to 07:25 on Wed 28 Jul.",
          "fact": "1999-07-27T10:22:07Z → 1999-07-28T11:24:47Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 27th, 12:14–13:02 on the 28th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 17379 s"
        },
        {
          "step": "ruling",
          "text": "Guru Pūrṇimā, Valencia, 1999: Tuesday 27 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "guru-purnima",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Guru Pūrṇimā 1999 falls on Tuesday 27 July. Pūrṇimā runs from 06:22 on Tue 27 Jul to 07:25 on Wed 28 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/guru-purnima",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/kokila-vrata",
      "festival": "kokila-vrata",
      "name": "Kokilā Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32409,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-07-27T06:22:07-04:00",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T07:24:47-04:00",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-27T06:22:07-04:00",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T07:24:47-04:00",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1999-07-27",
          "window": {
            "start": {
              "local": "1999-07-27T16:25:03-04:00",
              "utc": "1999-07-27T20:25:03Z",
              "ms": 933107103373.8916
            },
            "end": {
              "local": "1999-07-27T18:56:08-04:00",
              "utc": "1999-07-27T22:56:08Z",
              "ms": 933116167742.4806
            }
          },
          "covered_min": 151,
          "window_min": 151,
          "qualifies": true
        },
        {
          "local_date": "1999-07-28",
          "window": {
            "start": {
              "local": "1999-07-28T16:24:55-04:00",
              "utc": "1999-07-28T20:24:55Z",
              "ms": 933193495408.7461
            },
            "end": {
              "local": "1999-07-28T18:55:55-04:00",
              "utc": "1999-07-28T22:55:55Z",
              "ms": 933202555179.8851
            }
          },
          "covered_min": 0,
          "window_min": 151,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 06:22 on Tue 27 Jul to 07:25 on Wed 28 Jul.",
          "fact": "1999-07-27T10:22:07Z → 1999-07-28T11:24:47Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:25–18:56 on the 27th, 16:25–18:56 on the 28th.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 151 of 151 minutes on the 27th and 0 of 151 on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one late afternoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 32409 s"
        },
        {
          "step": "ruling",
          "text": "Kokilā Vrata, Valencia, 1999: Tuesday 27 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "kokila-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)."
          }
        ],
        "kaala": "sayahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kokilā Vrata 1999 falls on Tuesday 27 July. Pūrṇimā runs from 06:22 on Tue 27 Jul to 07:25 on Wed 28 Jul and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/valencia/festivals/1999/kokila-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shiva-shayanotsava",
      "festival": "shiva-shayanotsava",
      "name": "Śiva Śayanotsava",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35672,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-07-27T06:22:07-04:00",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T07:24:47-04:00",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-27T06:22:07-04:00",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T07:24:47-04:00",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-07-26",
          "window": {
            "start": {
              "local": "1999-07-26T18:56:19-04:00",
              "utc": "1999-07-26T22:56:19Z",
              "ms": 933029779476.3523
            },
            "end": {
              "local": "1999-07-26T20:27:35-04:00",
              "utc": "1999-07-27T00:27:35Z",
              "ms": 933035254999.4435
            }
          },
          "covered_min": 0,
          "window_min": 91,
          "qualifies": false
        },
        {
          "local_date": "1999-07-27",
          "window": {
            "start": {
              "local": "1999-07-27T18:56:08-04:00",
              "utc": "1999-07-27T22:56:08Z",
              "ms": 933116167742.4806
            },
            "end": {
              "local": "1999-07-27T20:27:26-04:00",
              "utc": "1999-07-28T00:27:26Z",
              "ms": 933121646220.0419
            }
          },
          "covered_min": 91,
          "window_min": 91,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 06:22 on Tue 27 Jul to 07:25 on Wed 28 Jul.",
          "fact": "1999-07-27T10:22:07Z → 1999-07-28T11:24:47Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:28 on the 26th, 18:56–20:27 on the 27th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 91 minutes on the 26th and 91 of 91 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 35672 s"
        },
        {
          "step": "ruling",
          "text": "Śiva Śayanotsava, Valencia, 1999: Tuesday 27 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shiva-shayanotsava",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śiva Śayanotsava 1999 falls on Tuesday 27 July. Pūrṇimā runs from 06:22 on Tue 27 Jul to 07:25 on Wed 28 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shiva-shayanotsava",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ashunya-shayana-vrata-ashadha",
      "festival": "ashunya-shayana-vrata-ashadha",
      "name": "Aśūnya Śayana Vrata (Āṣāḍha)",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 43380,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1999-07-29T07:59:38-04:00",
          "utc": "1999-07-29T11:59:38Z",
          "ms": 933249578290.1967
        },
        "end": {
          "local": "1999-07-30T08:06:46-04:00",
          "utc": "1999-07-30T12:06:46Z",
          "ms": 933336406362.5083
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-29T07:59:38-04:00",
          "utc": "1999-07-29T11:59:38Z",
          "ms": 933249578290.1967
        },
        "end": {
          "local": "1999-07-30T08:06:46-04:00",
          "utc": "1999-07-30T12:06:46Z",
          "ms": 933336406362.5083
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-07-28",
          "window": {
            "start": {
              "local": "1999-07-28T19:16:15-04:00",
              "utc": "1999-07-28T23:16:15Z",
              "ms": 933203775216.9253
            },
            "end": {
              "local": "1999-07-28T19:16:15-04:00",
              "utc": "1999-07-28T23:16:15Z",
              "ms": 933203775216.9253
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-07-29",
          "window": {
            "start": {
              "local": "1999-07-29T20:03:47-04:00",
              "utc": "1999-07-30T00:03:47Z",
              "ms": 933293026599.3146
            },
            "end": {
              "local": "1999-07-29T20:03:47-04:00",
              "utc": "1999-07-30T00:03:47Z",
              "ms": 933293026599.3146
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 08:00 on Thu 29 Jul to 08:07 on Fri 30 Jul.",
          "fact": "1999-07-29T11:59:38Z → 1999-07-30T12:06:46Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:16 on the 28th and 20:04 on the 29th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be current at moonrise. It is not on the 28th and is on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 43380 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata (Āṣāḍha), Valencia, 1999: Thursday 29 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ashunya-shayana-vrata-ashadha",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 2 Asunya sayana vrata (candrodaya vyapini; purvahna vyapini and purvaviddha in Bengal)."
          }
        ],
        "not_evaluated": "In Bengal the row reads pūrvāhṇa and pūrvaviddha; that reading is not applied.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Aśūnya Śayana Vrata (Āṣāḍha) 1999 falls on Thursday 29 July. Dvitīyā runs from 08:00 on Thu 29 Jul to 08:07 on Fri 30 Jul and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ashunya-shayana-vrata-ashadha",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-07-31",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-07-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33975,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-07-31T07:47:02-04:00",
          "utc": "1999-07-31T11:47:02Z",
          "ms": 933421622382.7141
        },
        "end": {
          "local": "1999-08-01T07:01:44-04:00",
          "utc": "1999-08-01T11:01:44Z",
          "ms": 933505303586.014
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-07-31T07:47:02-04:00",
          "utc": "1999-07-31T11:47:02Z",
          "ms": 933421622382.7141
        },
        "end": {
          "local": "1999-08-01T07:01:44-04:00",
          "utc": "1999-08-01T11:01:44Z",
          "ms": 933505303586.014
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-07-30",
          "window": {
            "start": {
              "local": "1999-07-30T20:50:05-04:00",
              "utc": "1999-07-31T00:50:05Z",
              "ms": 933382205270.3728
            },
            "end": {
              "local": "1999-07-30T20:50:05-04:00",
              "utc": "1999-07-31T00:50:05Z",
              "ms": 933382205270.3728
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-07-31",
          "window": {
            "start": {
              "local": "1999-07-31T21:35:29-04:00",
              "utc": "1999-08-01T01:35:29Z",
              "ms": 933471329065.8477
            },
            "end": {
              "local": "1999-07-31T21:35:29-04:00",
              "utc": "1999-08-01T01:35:29Z",
              "ms": 933471329065.8477
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 07:47 on Sat 31 Jul to 07:02 on Sun 1 Aug.",
          "fact": "1999-07-31T11:47:02Z → 1999-08-01T11:01:44Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:50 on the 30th and 21:35 on the 31st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 30th and is on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 33975 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Saturday 31 July.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-07-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Saturday 31 July. Caturthī runs from 07:47 on Sat 31 Jul to 07:02 on Sun 1 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-07-31",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-08-07",
      "festival": "ekadashi",
      "name": "Kāmikā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37286,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-08-06T19:23:00-04:00",
          "utc": "1999-08-06T23:23:00Z",
          "ms": 933981779689.2195
        },
        "end": {
          "local": "1999-08-07T16:43:45-04:00",
          "utc": "1999-08-07T20:43:45Z",
          "ms": 934058625453.042
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-06T19:23:00-04:00",
          "utc": "1999-08-06T23:23:00Z",
          "ms": 933981779689.2195
        },
        "end": {
          "local": "1999-08-07T16:43:45-04:00",
          "utc": "1999-08-07T20:43:45Z",
          "ms": 934058625453.042
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-08-06",
          "window": {
            "start": {
              "local": "1999-08-06T06:22:13-04:00",
              "utc": "1999-08-06T10:22:13Z",
              "ms": 933934932697.6587
            },
            "end": {
              "local": "1999-08-06T06:22:13-04:00",
              "utc": "1999-08-06T10:22:13Z",
              "ms": 933934932697.6587
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-08-07",
          "window": {
            "start": {
              "local": "1999-08-07T06:22:19-04:00",
              "utc": "1999-08-07T10:22:19Z",
              "ms": 934021339204.7498
            },
            "end": {
              "local": "1999-08-07T06:22:19-04:00",
              "utc": "1999-08-07T10:22:19Z",
              "ms": 934021339204.7498
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-08-08",
        "start": {
          "local": "1999-08-08T06:22:25-04:00",
          "utc": "1999-08-08T10:22:25Z",
          "ms": 934107745306.2141
        },
        "end": {
          "local": "1999-08-08T08:52:29-04:00",
          "utc": "1999-08-08T12:52:29Z",
          "ms": 934116749162.0603
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-08-08T14:04:23-04:00",
          "utc": "1999-08-08T18:04:23Z",
          "ms": 934135463226.5918
        },
        "hari_vasara_end": {
          "local": "1999-08-07T22:03:55-04:00",
          "utc": "1999-08-08T02:03:55Z",
          "ms": 934077834896.4294
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 19:23 on Fri 6 Aug to 16:44 on Sat 7 Aug.",
          "fact": "1999-08-06T23:23:00Z → 1999-08-07T20:43:45Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:22 on the 6th and 06:22 on the 7th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 37286 s"
        },
        {
          "step": "ruling",
          "text": "Kāmikā Ekādaśī, Valencia, 1999: Saturday 7 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kāmikā Ekādaśī 1999 falls on Saturday 7 August. Ekādaśī runs from 19:23 on Fri 6 Aug to 16:44 on Sat 7 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-08-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-08-08",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17301,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-08-08T14:04:23-04:00",
          "utc": "1999-08-08T18:04:23Z",
          "ms": 934135463226.5918
        },
        "end": {
          "local": "1999-08-09T11:30:58-04:00",
          "utc": "1999-08-09T15:30:58Z",
          "ms": 934212658141.7462
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-08T14:04:23-04:00",
          "utc": "1999-08-08T18:04:23Z",
          "ms": 934135463226.5918
        },
        "end": {
          "local": "1999-08-09T11:30:58-04:00",
          "utc": "1999-08-09T15:30:58Z",
          "ms": 934212658141.7462
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-08-08",
          "window": {
            "start": {
              "local": "1999-08-08T18:52:45-04:00",
              "utc": "1999-08-08T22:52:45Z",
              "ms": 934152764585.4453
            },
            "end": {
              "local": "1999-08-08T20:24:43-04:00",
              "utc": "1999-08-09T00:24:43Z",
              "ms": 934158282773.7745
            }
          },
          "covered_min": 92,
          "window_min": 92,
          "qualifies": true
        },
        {
          "local_date": "1999-08-09",
          "window": {
            "start": {
              "local": "1999-08-09T18:52:23-04:00",
              "utc": "1999-08-09T22:52:23Z",
              "ms": 934239142712.9628
            },
            "end": {
              "local": "1999-08-09T20:24:25-04:00",
              "utc": "1999-08-10T00:24:25Z",
              "ms": 934244664521.3108
            }
          },
          "covered_min": 0,
          "window_min": 92,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 14:04 on Sun 8 Aug to 11:31 on Mon 9 Aug.",
          "fact": "1999-08-08T18:04:23Z → 1999-08-09T15:30:58Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:53–20:25 on the 8th, 18:52–20:24 on the 9th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 92 of 92 minutes on the 8th and 0 of 92 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 17301 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Sunday 8 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Sunday 8 August. Trayodaśī runs from 14:04 on Sun 8 Aug to 11:31 on Mon 9 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-08-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-08-09",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29315,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-08-09T11:30:58-04:00",
          "utc": "1999-08-09T15:30:58Z",
          "ms": 934212658141.7462
        },
        "end": {
          "local": "1999-08-10T09:10:04-04:00",
          "utc": "1999-08-10T13:10:04Z",
          "ms": 934290604132.7664
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-09T11:30:58-04:00",
          "utc": "1999-08-09T15:30:58Z",
          "ms": 934212658141.7462
        },
        "end": {
          "local": "1999-08-10T09:10:04-04:00",
          "utc": "1999-08-10T13:10:04Z",
          "ms": 934290604132.7664
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-08-08",
          "window": {
            "start": {
              "local": "1999-08-09T00:13:38-04:00",
              "utc": "1999-08-09T04:13:38Z",
              "ms": 934172017791.6799
            },
            "end": {
              "local": "1999-08-09T01:01:38-04:00",
              "utc": "1999-08-09T05:01:38Z",
              "ms": 934174897791.6799
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-08-09",
          "window": {
            "start": {
              "local": "1999-08-10T00:13:29-04:00",
              "utc": "1999-08-10T04:13:29Z",
              "ms": 934258409494.2676
            },
            "end": {
              "local": "1999-08-10T01:01:29-04:00",
              "utc": "1999-08-10T05:01:29Z",
              "ms": 934261289494.2676
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 11:31 on Mon 9 Aug to 09:10 on Tue 10 Aug.",
          "fact": "1999-08-09T15:30:58Z → 1999-08-10T13:10:04Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:14–01:02 on the 8th, 00:13–01:01 on the 9th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29315 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Monday 9 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Monday 9 August. Caturdaśī runs from 11:31 on Mon 9 Aug to 09:10 on Tue 10 Aug and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-08-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/madhusrava-tritiya",
      "festival": "madhusrava-tritiya",
      "name": "Madhusravā Tṛtīyā",
      "everyday": "Hariyali Teej",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27798,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-08-13T04:29:31-04:00",
          "utc": "1999-08-13T08:29:31Z",
          "ms": 934532971266.4155
        },
        "end": {
          "local": "1999-08-14T04:03:09-04:00",
          "utc": "1999-08-14T08:03:09Z",
          "ms": 934617788568.7856
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-13T04:29:31-04:00",
          "utc": "1999-08-13T08:29:31Z",
          "ms": 934532971266.4155
        },
        "end": {
          "local": "1999-08-14T04:03:09-04:00",
          "utc": "1999-08-14T08:03:09Z",
          "ms": 934617788568.7856
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-13",
          "window": {
            "start": {
              "local": "1999-08-13T12:12:49-04:00",
              "utc": "1999-08-13T16:12:49Z",
              "ms": 934560768813.336
            },
            "end": {
              "local": "1999-08-13T13:00:49-04:00",
              "utc": "1999-08-13T17:00:49Z",
              "ms": 934563648813.336
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-08-14",
          "window": {
            "start": {
              "local": "1999-08-14T12:12:38-04:00",
              "utc": "1999-08-14T16:12:38Z",
              "ms": 934647157896.8677
            },
            "end": {
              "local": "1999-08-14T13:00:38-04:00",
              "utc": "1999-08-14T17:00:38Z",
              "ms": 934650037896.8677
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 04:30 on Fri 13 Aug to 04:03 on Sat 14 Aug.",
          "fact": "1999-08-13T08:29:31Z → 1999-08-14T08:03:09Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 13th, 12:13–13:01 on the 14th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 27798 s"
        },
        {
          "step": "ruling",
          "text": "Madhusravā Tṛtīyā, Valencia, 1999: Friday 13 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "madhusrava-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Madhusrava (Gujerat) (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Madhusravā Tṛtīyā (Hariyali Teej) 1999 falls on Friday 13 August. Tṛtīyā runs from 04:30 on Fri 13 Aug to 04:03 on Sat 14 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/madhusrava-tritiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vinayaka-chaturthi?on=1999-08-14",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28544,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-08-14T04:03:09-04:00",
          "utc": "1999-08-14T08:03:09Z",
          "ms": 934617788568.7856
        },
        "end": {
          "local": "1999-08-15T04:16:42-04:00",
          "utc": "1999-08-15T08:16:42Z",
          "ms": 934705001948.566
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-14T04:03:09-04:00",
          "utc": "1999-08-14T08:03:09Z",
          "ms": 934617788568.7856
        },
        "end": {
          "local": "1999-08-15T04:16:42-04:00",
          "utc": "1999-08-15T08:16:42Z",
          "ms": 934705001948.566
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-14",
          "window": {
            "start": {
              "local": "1999-08-14T12:12:38-04:00",
              "utc": "1999-08-14T16:12:38Z",
              "ms": 934647157896.8677
            },
            "end": {
              "local": "1999-08-14T13:00:38-04:00",
              "utc": "1999-08-14T17:00:38Z",
              "ms": 934650037896.8677
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-08-15",
          "window": {
            "start": {
              "local": "1999-08-15T12:12:26-04:00",
              "utc": "1999-08-15T16:12:26Z",
              "ms": 934733546428.0413
            },
            "end": {
              "local": "1999-08-15T13:00:26-04:00",
              "utc": "1999-08-15T17:00:26Z",
              "ms": 934736426428.0413
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 04:03 on Sat 14 Aug to 04:17 on Sun 15 Aug.",
          "fact": "1999-08-14T08:03:09Z → 1999-08-15T08:16:42Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 14th, 12:12–13:00 on the 15th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 28544 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Valencia, 1999: Saturday 14 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vināyaka Caturthī 1999 falls on Saturday 14 August. Caturthī runs from 04:03 on Sat 14 Aug to 04:17 on Sun 15 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vinayaka-chaturthi?on=1999-08-14",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/naga-panchami",
      "festival": "naga-panchami",
      "name": "Nāga Pañcamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25320,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-08-15T04:16:42-04:00",
          "utc": "1999-08-15T08:16:42Z",
          "ms": 934705001948.566
        },
        "end": {
          "local": "1999-08-16T05:10:15-04:00",
          "utc": "1999-08-16T09:10:15Z",
          "ms": 934794614857.0769
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-15T04:16:42-04:00",
          "utc": "1999-08-15T08:16:42Z",
          "ms": 934705001948.566
        },
        "end": {
          "local": "1999-08-16T05:10:15-04:00",
          "utc": "1999-08-16T09:10:15Z",
          "ms": 934794614857.0769
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-15",
          "window": {
            "start": {
              "local": "1999-08-15T12:12:26-04:00",
              "utc": "1999-08-15T16:12:26Z",
              "ms": 934733546428.0413
            },
            "end": {
              "local": "1999-08-15T13:00:26-04:00",
              "utc": "1999-08-15T17:00:26Z",
              "ms": 934736426428.0413
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-08-16",
          "window": {
            "start": {
              "local": "1999-08-16T12:12:14-04:00",
              "utc": "1999-08-16T16:12:14Z",
              "ms": 934819934414.2843
            },
            "end": {
              "local": "1999-08-16T13:00:14-04:00",
              "utc": "1999-08-16T17:00:14Z",
              "ms": 934822814414.2843
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 04:17 on Sun 15 Aug to 05:10 on Mon 16 Aug.",
          "fact": "1999-08-15T08:16:42Z → 1999-08-16T09:10:15Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 15th, 12:12–13:00 on the 16th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 25320 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī, Valencia, 1999: Sunday 15 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "naga-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Naga pancami (paraviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Nāga Pañcamī 1999 falls on Sunday 15 August. Pañcamī runs from 04:17 on Sun 15 Aug to 05:10 on Mon 16 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/naga-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-08-22",
      "festival": "ekadashi",
      "name": "Putradā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33160,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-08-21T15:35:47-04:00",
          "utc": "1999-08-21T19:35:47Z",
          "ms": 935264146951.3258
        },
        "end": {
          "local": "1999-08-22T17:31:21-04:00",
          "utc": "1999-08-22T21:31:21Z",
          "ms": 935357481011.874
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-21T15:35:47-04:00",
          "utc": "1999-08-21T19:35:47Z",
          "ms": 935264146951.3258
        },
        "end": {
          "local": "1999-08-22T17:31:21-04:00",
          "utc": "1999-08-22T21:31:21Z",
          "ms": 935357481011.874
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-08-21",
          "window": {
            "start": {
              "local": "1999-08-21T06:23:07-04:00",
              "utc": "1999-08-21T10:23:07Z",
              "ms": 935230986691.841
            },
            "end": {
              "local": "1999-08-21T06:23:07-04:00",
              "utc": "1999-08-21T10:23:07Z",
              "ms": 935230986691.841
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-08-22",
          "window": {
            "start": {
              "local": "1999-08-22T06:23:07-04:00",
              "utc": "1999-08-22T10:23:07Z",
              "ms": 935317387034.2634
            },
            "end": {
              "local": "1999-08-22T06:23:07-04:00",
              "utc": "1999-08-22T10:23:07Z",
              "ms": 935317387034.2634
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-08-23",
        "start": {
          "local": "1999-08-23T06:23:07-04:00",
          "utc": "1999-08-23T10:23:07Z",
          "ms": 935403787006.324
        },
        "end": {
          "local": "1999-08-23T08:51:43-04:00",
          "utc": "1999-08-23T12:51:43Z",
          "ms": 935412702575.6409
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-08-23T18:58:06-04:00",
          "utc": "1999-08-23T22:58:06Z",
          "ms": 935449086012.9054
        },
        "hari_vasara_end": {
          "local": "1999-08-22T23:53:02-04:00",
          "utc": "1999-08-23T03:53:02Z",
          "ms": 935380382262.1318
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 15:36 on Sat 21 Aug to 17:31 on Sun 22 Aug.",
          "fact": "1999-08-21T19:35:47Z → 1999-08-22T21:31:21Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:23 on the 21st and 06:23 on the 22nd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 21st and is on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 33160 s"
        },
        {
          "step": "ruling",
          "text": "Putradā Ekādaśī, Valencia, 1999: Sunday 22 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Putradā Ekādaśī 1999 falls on Sunday 22 August. Ekādaśī runs from 15:36 on Sat 21 Aug to 17:31 on Sun 22 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-08-22",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/damodara-dvadashi",
      "festival": "damodara-dvadashi",
      "name": "Dāmodara Dvādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16350,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-08-22T17:31:21-04:00",
          "utc": "1999-08-22T21:31:21Z",
          "ms": 935357481011.874
        },
        "end": {
          "local": "1999-08-23T18:58:06-04:00",
          "utc": "1999-08-23T22:58:06Z",
          "ms": 935449086012.9054
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-22T17:31:21-04:00",
          "utc": "1999-08-22T21:31:21Z",
          "ms": 935357481011.874
        },
        "end": {
          "local": "1999-08-23T18:58:06-04:00",
          "utc": "1999-08-23T22:58:06Z",
          "ms": 935449086012.9054
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-22",
          "window": {
            "start": {
              "local": "1999-08-22T12:10:51-04:00",
              "utc": "1999-08-22T16:10:51Z",
              "ms": 935338251453.5876
            },
            "end": {
              "local": "1999-08-22T12:58:51-04:00",
              "utc": "1999-08-22T16:58:51Z",
              "ms": 935341131453.5876
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-08-23",
          "window": {
            "start": {
              "local": "1999-08-23T12:10:36-04:00",
              "utc": "1999-08-23T16:10:36Z",
              "ms": 935424635929.6161
            },
            "end": {
              "local": "1999-08-23T12:58:36-04:00",
              "utc": "1999-08-23T16:58:36Z",
              "ms": 935427515929.6161
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 17:31 on Sun 22 Aug to 18:58 on Mon 23 Aug.",
          "fact": "1999-08-22T21:31:21Z → 1999-08-23T22:58:06Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:11–12:59 on the 22nd, 12:11–12:59 on the 23rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 16350 s"
        },
        {
          "step": "ruling",
          "text": "Dāmodara Dvādaśī, Valencia, 1999: Monday 23 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "damodara-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Buddha dvadasi, Damodara dvadasi (purvaviddha), Visnu-pavitraropana."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Dāmodara Dvādaśī 1999 falls on Monday 23 August. Dvādaśī runs from 17:31 on Sun 22 Aug to 18:58 on Mon 23 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/damodara-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-08-23",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-23",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 721,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-08-23T18:58:06-04:00",
          "utc": "1999-08-23T22:58:06Z",
          "ms": 935449086012.9054
        },
        "end": {
          "local": "1999-08-24T19:50:34-04:00",
          "utc": "1999-08-24T23:50:34Z",
          "ms": 935538633591.6915
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-23T18:58:06-04:00",
          "utc": "1999-08-23T22:58:06Z",
          "ms": 935449086012.9054
        },
        "end": {
          "local": "1999-08-24T19:50:34-04:00",
          "utc": "1999-08-24T23:50:34Z",
          "ms": 935538633591.6915
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-08-23",
          "window": {
            "start": {
              "local": "1999-08-23T18:46:05-04:00",
              "utc": "1999-08-23T22:46:05Z",
              "ms": 935448364852.9082
            },
            "end": {
              "local": "1999-08-23T20:19:01-04:00",
              "utc": "1999-08-24T00:19:01Z",
              "ms": 935453941088.4639
            }
          },
          "covered_min": 81,
          "window_min": 93,
          "qualifies": true
        },
        {
          "local_date": "1999-08-24",
          "window": {
            "start": {
              "local": "1999-08-24T18:45:33-04:00",
              "utc": "1999-08-24T22:45:33Z",
              "ms": 935534733299.6011
            },
            "end": {
              "local": "1999-08-24T20:18:34-04:00",
              "utc": "1999-08-25T00:18:34Z",
              "ms": 935540313644.5438
            }
          },
          "covered_min": 65,
          "window_min": 93,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 18:58 on Mon 23 Aug to 19:51 on Tue 24 Aug.",
          "fact": "1999-08-23T22:58:06Z → 1999-08-24T23:50:34Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:46–20:19 on the 23rd, 18:46–20:19 on the 24th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 81 of 93 minutes on the 23rd and 65 of 93 on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 721 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Monday 23 August.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-23",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-23",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Monday 23 August. Trayodaśī runs from 18:58 on Mon 23 Aug to 19:51 on Tue 24 Aug and covers 81 of 93 minutes of pradoṣa that evening. It also reaches the next evening for 65 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-08-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/raksha-bandhana",
      "festival": "raksha-bandhana",
      "name": "Rakṣā Bandhana",
      "everyday": "Rakhi",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5907,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-08-25T20:06:47-04:00",
          "utc": "1999-08-26T00:06:47Z",
          "ms": 935626007066.9425
        },
        "end": {
          "local": "1999-08-26T19:47:49-04:00",
          "utc": "1999-08-26T23:47:49Z",
          "ms": 935711268854.7804
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "second-half",
        "start": {
          "local": "1999-08-26T08:01:32-04:00",
          "utc": "1999-08-26T12:01:32Z",
          "ms": 935668892262.2249
        },
        "end": {
          "local": "1999-08-26T19:47:49-04:00",
          "utc": "1999-08-26T23:47:49Z",
          "ms": 935711268854.7804
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "1999-08-25",
          "window": {
            "start": {
              "local": "1999-08-25T06:23:06-04:00",
              "utc": "1999-08-25T10:23:06Z",
              "ms": 935576585886.6719
            },
            "end": {
              "local": "1999-08-26T06:23:05-04:00",
              "utc": "1999-08-26T10:23:05Z",
              "ms": 935662984821.3616
            }
          },
          "covered_min": 0,
          "window_min": 1440,
          "qualifies": false
        },
        {
          "local_date": "1999-08-26",
          "window": {
            "start": {
              "local": "1999-08-26T06:23:05-04:00",
              "utc": "1999-08-26T10:23:05Z",
              "ms": 935662984821.3616
            },
            "end": {
              "local": "1999-08-27T06:23:03-04:00",
              "utc": "1999-08-27T10:23:03Z",
              "ms": 935749383438.5917
            }
          },
          "covered_min": 706,
          "window_min": 1440,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 20:07 on Wed 25 Aug to 19:48 on Thu 26 Aug. Its second half begins at 08:02 on Thu 26 Aug.",
          "fact": "1999-08-26T00:06:47Z → 1999-08-26T23:47:49Z · second half from 1999-08-26T12:01:32Z"
        },
        {
          "step": "kaala",
          "text": "The day runs from sunrise to the next sunrise: from 06:23 on the 25th, and from 06:23 on the 26th.",
          "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The second half of Pūrṇimā must be present during the day. It covers 0 of 1440 minutes on the 25th and 706 of 1440 on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one day qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 5907 s"
        },
        {
          "step": "ruling",
          "text": "Rakṣā Bandhana, Valencia, 1999: Thursday 26 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "raksha-bandhana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana"
          }
        ],
        "kaala": "day",
        "priority": "unstated",
        "when_absent": "unstated",
        "half": "second"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Rakṣā Bandhana (Rakhi) 1999 falls on Thursday 26 August. The second half of Pūrṇimā runs from 08:02 on Thu 26 Aug to 19:48 on Thu 26 Aug and lies within that day, sunrise to sunrise.",
      "cite": "https://ahargana.org/valencia/festivals/1999/raksha-bandhana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/rishi-tarpana",
      "festival": "rishi-tarpana",
      "name": "Ṛṣi Tarpaṇa",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24602,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-08-25T20:06:47-04:00",
          "utc": "1999-08-26T00:06:47Z",
          "ms": 935626007066.9425
        },
        "end": {
          "local": "1999-08-26T19:47:49-04:00",
          "utc": "1999-08-26T23:47:49Z",
          "ms": 935711268854.7804
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-25T20:06:47-04:00",
          "utc": "1999-08-26T00:06:47Z",
          "ms": 935626007066.9425
        },
        "end": {
          "local": "1999-08-26T19:47:49-04:00",
          "utc": "1999-08-26T23:47:49Z",
          "ms": 935711268854.7804
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-25",
          "window": {
            "start": {
              "local": "1999-08-25T12:10:04-04:00",
              "utc": "1999-08-25T16:10:04Z",
              "ms": 935597403560.2219
            },
            "end": {
              "local": "1999-08-25T12:58:04-04:00",
              "utc": "1999-08-25T16:58:04Z",
              "ms": 935600283560.2219
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-08-26",
          "window": {
            "start": {
              "local": "1999-08-26T12:09:47-04:00",
              "utc": "1999-08-26T16:09:47Z",
              "ms": 935683786749.1658
            },
            "end": {
              "local": "1999-08-26T12:57:47-04:00",
              "utc": "1999-08-26T16:57:47Z",
              "ms": 935686666749.1658
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 20:07 on Wed 25 Aug to 19:48 on Thu 26 Aug.",
          "fact": "1999-08-26T00:06:47Z → 1999-08-26T23:47:49Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 25th, 12:10–12:58 on the 26th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 24602 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Tarpaṇa, Valencia, 1999: Thursday 26 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rishi-tarpana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana"
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Ṛṣi Tarpaṇa 1999 falls on Thursday 26 August. Pūrṇimā runs from 20:07 on Wed 25 Aug to 19:48 on Thu 26 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/rishi-tarpana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ashunya-shayana-vrata",
      "festival": "ashunya-shayana-vrata",
      "name": "Aśūnya Śayana Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2084,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1999-08-27T18:56:54-04:00",
          "utc": "1999-08-27T22:56:54Z",
          "ms": 935794614065.3729
        },
        "end": {
          "local": "1999-08-28T17:38:43-04:00",
          "utc": "1999-08-28T21:38:43Z",
          "ms": 935876322825.5887
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-27T18:56:54-04:00",
          "utc": "1999-08-27T22:56:54Z",
          "ms": 935794614065.3729
        },
        "end": {
          "local": "1999-08-28T17:38:43-04:00",
          "utc": "1999-08-28T21:38:43Z",
          "ms": 935876322825.5887
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-08-27",
          "window": {
            "start": {
              "local": "1999-08-27T19:31:38-04:00",
              "utc": "1999-08-27T23:31:38Z",
              "ms": 935796697733.5531
            },
            "end": {
              "local": "1999-08-27T19:31:38-04:00",
              "utc": "1999-08-27T23:31:38Z",
              "ms": 935796697733.5531
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-08-28",
          "window": {
            "start": {
              "local": "1999-08-28T20:17:43-04:00",
              "utc": "1999-08-29T00:17:43Z",
              "ms": 935885863335.9763
            },
            "end": {
              "local": "1999-08-28T20:17:43-04:00",
              "utc": "1999-08-29T00:17:43Z",
              "ms": 935885863335.9763
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 18:57 on Fri 27 Aug to 17:39 on Sat 28 Aug.",
          "fact": "1999-08-27T22:56:54Z → 1999-08-28T21:38:43Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:32 on the 27th and 20:18 on the 28th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be current at moonrise. It is on the 27th and is not on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 2084 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata, Valencia, 1999: Friday 27 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ashunya-shayana-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 2 Asunyasayana vrata (Dvitiya current at moonrise; if occurs on two successive days, it is to be observed on the second day)."
          }
        ],
        "kaala": "moonrise",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Aśūnya Śayana Vrata 1999 falls on Friday 27 August. Dvitīyā runs from 18:57 on Fri 27 Aug to 17:39 on Sat 28 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ashunya-shayana-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/kajjali-tritiya",
      "festival": "kajjali-tritiya",
      "name": "Kajjalī Tṛtīyā",
      "everyday": "Kajari Teej",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10904,
      "anga": {
        "type": "tithi",
        "index": 17,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-08-28T17:38:43-04:00",
          "utc": "1999-08-28T21:38:43Z",
          "ms": 935876322825.5887
        },
        "end": {
          "local": "1999-08-29T15:58:38-04:00",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-28T17:38:43-04:00",
          "utc": "1999-08-28T21:38:43Z",
          "ms": 935876322825.5887
        },
        "end": {
          "local": "1999-08-29T15:58:38-04:00",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-28",
          "window": {
            "start": {
              "local": "1999-08-28T12:09:12-04:00",
              "utc": "1999-08-28T16:09:12Z",
              "ms": 935856551966.7566
            },
            "end": {
              "local": "1999-08-28T12:57:12-04:00",
              "utc": "1999-08-28T16:57:12Z",
              "ms": 935859431966.7566
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-08-29",
          "window": {
            "start": {
              "local": "1999-08-29T12:08:54-04:00",
              "utc": "1999-08-29T16:08:54Z",
              "ms": 935942934034.2002
            },
            "end": {
              "local": "1999-08-29T12:56:54-04:00",
              "utc": "1999-08-29T16:56:54Z",
              "ms": 935945814034.2002
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 17:39 on Sat 28 Aug to 15:59 on Sun 29 Aug.",
          "fact": "1999-08-28T21:38:43Z → 1999-08-29T19:58:38Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 28th, 12:09–12:57 on the 29th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 10904 s"
        },
        {
          "step": "ruling",
          "text": "Kajjalī Tṛtīyā, Valencia, 1999: Sunday 29 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "kajjali-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 3 Kajjali trtiya, (paraviddha), Angaveta trtiya (Orissa)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kajjalī Tṛtīyā (Kajari Teej) 1999 falls on Sunday 29 August. Tṛtīyā runs from 17:39 on Sat 28 Aug to 15:59 on Sun 29 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/kajjali-tritiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/bahula-chaturthi",
      "festival": "bahula-chaturthi",
      "name": "Bahulā Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 972,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-08-29T15:58:38-04:00",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        },
        "end": {
          "local": "1999-08-30T14:02:13-04:00",
          "utc": "1999-08-30T18:02:13Z",
          "ms": 936036133080.4462
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-29T15:58:38-04:00",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        },
        "end": {
          "local": "1999-08-30T14:02:13-04:00",
          "utc": "1999-08-30T18:02:13Z",
          "ms": 936036133080.4462
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1999-08-29",
          "window": {
            "start": {
              "local": "1999-08-29T16:14:51-04:00",
              "utc": "1999-08-29T20:14:51Z",
              "ms": 935957690584.7819
            },
            "end": {
              "local": "1999-08-29T18:42:48-04:00",
              "utc": "1999-08-29T22:42:48Z",
              "ms": 935966568285.1697
            }
          },
          "covered_min": 148,
          "window_min": 148,
          "qualifies": true
        },
        {
          "local_date": "1999-08-30",
          "window": {
            "start": {
              "local": "1999-08-30T16:14:23-04:00",
              "utc": "1999-08-30T20:14:23Z",
              "ms": 936044062701.2013
            },
            "end": {
              "local": "1999-08-30T18:42:14-04:00",
              "utc": "1999-08-30T22:42:14Z",
              "ms": 936052933990.5319
            }
          },
          "covered_min": 0,
          "window_min": 148,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 15:59 on Sun 29 Aug to 14:02 on Mon 30 Aug.",
          "fact": "1999-08-29T19:58:38Z → 1999-08-30T18:02:13Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:15–18:43 on the 29th, 16:14–18:42 on the 30th.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during sāyāhna. It covers 148 of 148 minutes on the 29th and 0 of 148 on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one late afternoon qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 972 s"
        },
        {
          "step": "ruling",
          "text": "Bahulā Caturthī, Valencia, 1999: Sunday 29 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "bahula-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day)."
          }
        ],
        "kaala": "sayahna",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Bahulā Caturthī 1999 falls on Sunday 29 August. Caturthī runs from 15:59 on Sun 29 Aug to 14:02 on Mon 30 Aug and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/valencia/festivals/1999/bahula-chaturthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-08-29",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18317,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-08-29T15:58:38-04:00",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        },
        "end": {
          "local": "1999-08-30T14:02:13-04:00",
          "utc": "1999-08-30T18:02:13Z",
          "ms": 936036133080.4462
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-29T15:58:38-04:00",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        },
        "end": {
          "local": "1999-08-30T14:02:13-04:00",
          "utc": "1999-08-30T18:02:13Z",
          "ms": 936036133080.4462
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-08-29",
          "window": {
            "start": {
              "local": "1999-08-29T21:03:55-04:00",
              "utc": "1999-08-30T01:03:55Z",
              "ms": 935975035364.6526
            },
            "end": {
              "local": "1999-08-29T21:03:55-04:00",
              "utc": "1999-08-30T01:03:55Z",
              "ms": 935975035364.6526
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-08-30",
          "window": {
            "start": {
              "local": "1999-08-30T21:50:59-04:00",
              "utc": "1999-08-31T01:50:59Z",
              "ms": 936064259086.4276
            },
            "end": {
              "local": "1999-08-30T21:50:59-04:00",
              "utc": "1999-08-31T01:50:59Z",
              "ms": 936064259086.4276
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 15:59 on Sun 29 Aug to 14:02 on Mon 30 Aug.",
          "fact": "1999-08-29T19:58:38Z → 1999-08-30T18:02:13Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:04 on the 29th and 21:51 on the 30th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 29th and is not on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 18317 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Sunday 29 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Sunday 29 August. Caturthī runs from 15:59 on Sun 29 Aug to 14:02 on Mon 30 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-08-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/hala-shashthi",
      "festival": "hala-shashthi",
      "name": "Hala Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-08-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 813,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-08-31T11:54:44-04:00",
          "utc": "1999-08-31T15:54:44Z",
          "ms": 936114884406.217
        },
        "end": {
          "local": "1999-09-01T09:40:58-04:00",
          "utc": "1999-09-01T13:40:58Z",
          "ms": 936193257902.7037
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-08-31T11:54:44-04:00",
          "utc": "1999-08-31T15:54:44Z",
          "ms": 936114884406.217
        },
        "end": {
          "local": "1999-09-01T09:40:58-04:00",
          "utc": "1999-09-01T13:40:58Z",
          "ms": 936193257902.7037
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-31",
          "window": {
            "start": {
              "local": "1999-08-31T12:08:17-04:00",
              "utc": "1999-08-31T16:08:17Z",
              "ms": 936115697185.5322
            },
            "end": {
              "local": "1999-08-31T12:56:17-04:00",
              "utc": "1999-08-31T16:56:17Z",
              "ms": 936118577185.5322
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-01",
          "window": {
            "start": {
              "local": "1999-09-01T12:07:58-04:00",
              "utc": "1999-09-01T16:07:58Z",
              "ms": 936202078308.6172
            },
            "end": {
              "local": "1999-09-01T12:55:58-04:00",
              "utc": "1999-09-01T16:55:58Z",
              "ms": 936204958308.6172
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 11:55 on Tue 31 Aug to 09:41 on Wed 1 Sep.",
          "fact": "1999-08-31T15:54:44Z → 1999-09-01T13:40:58Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 31st, 12:08–12:56 on the 1st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 813 s"
        },
        {
          "step": "ruling",
          "text": "Hala Ṣaṣṭhī, Valencia, 1999: Tuesday 31 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "hala-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 6 Hala sasthi (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-08-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Hala Ṣaṣṭhī 1999 falls on Tuesday 31 August. Ṣaṣṭhī runs from 11:55 on Tue 31 Aug to 09:41 on Wed 1 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/hala-shashthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shitala-saptami",
      "festival": "shitala-saptami",
      "name": "Śītalā Saptamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8820,
      "anga": {
        "type": "tithi",
        "index": 21,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-09-01T09:40:58-04:00",
          "utc": "1999-09-01T13:40:58Z",
          "ms": 936193257902.7037
        },
        "end": {
          "local": "1999-09-02T07:25:00-04:00",
          "utc": "1999-09-02T11:25:00Z",
          "ms": 936271499660.2216
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-01T09:40:58-04:00",
          "utc": "1999-09-01T13:40:58Z",
          "ms": 936193257902.7037
        },
        "end": {
          "local": "1999-09-02T07:25:00-04:00",
          "utc": "1999-09-02T11:25:00Z",
          "ms": 936271499660.2216
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-01",
          "window": {
            "start": {
              "local": "1999-09-01T12:07:58-04:00",
              "utc": "1999-09-01T16:07:58Z",
              "ms": 936202078308.6172
            },
            "end": {
              "local": "1999-09-01T12:55:58-04:00",
              "utc": "1999-09-01T16:55:58Z",
              "ms": 936204958308.6172
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-02",
          "window": {
            "start": {
              "local": "1999-09-02T12:07:39-04:00",
              "utc": "1999-09-02T16:07:39Z",
              "ms": 936288459155.0908
            },
            "end": {
              "local": "1999-09-02T12:55:39-04:00",
              "utc": "1999-09-02T16:55:39Z",
              "ms": 936291339155.0908
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 09:41 on Wed 1 Sep to 07:25 on Thu 2 Sep.",
          "fact": "1999-09-01T13:40:58Z → 1999-09-02T11:25:00Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 1st, 12:08–12:56 on the 2nd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 1st and 0 of 48 on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 8820 s"
        },
        {
          "step": "ruling",
          "text": "Śītalā Saptamī, Valencia, 1999: Wednesday 1 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shitala-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 7 Sitala saptami (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śītalā Saptamī 1999 falls on Wednesday 1 September. Saptamī runs from 09:41 on Wed 1 Sep to 07:25 on Thu 2 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shitala-saptami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/janmashtami",
      "festival": "janmashtami",
      "name": "Janmāṣṭamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15279,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-09-02T07:25:00-04:00",
          "utc": "1999-09-02T11:25:00Z",
          "ms": 936271499660.2216
        },
        "end": {
          "local": "1999-09-03T05:10:16-04:00",
          "utc": "1999-09-03T09:10:16Z",
          "ms": 936349816428.8888
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-02T07:25:00-04:00",
          "utc": "1999-09-02T11:25:00Z",
          "ms": 936271499660.2216
        },
        "end": {
          "local": "1999-09-03T05:10:16-04:00",
          "utc": "1999-09-03T09:10:16Z",
          "ms": 936349816428.8888
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-09-01",
          "window": {
            "start": {
              "local": "1999-09-02T00:07:57-04:00",
              "utc": "1999-09-02T04:07:57Z",
              "ms": 936245276835.0204
            },
            "end": {
              "local": "1999-09-02T00:55:57-04:00",
              "utc": "1999-09-02T04:55:57Z",
              "ms": 936248156835.0204
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-09-02",
          "window": {
            "start": {
              "local": "1999-09-03T00:07:38-04:00",
              "utc": "1999-09-03T04:07:38Z",
              "ms": 936331657578.9216
            },
            "end": {
              "local": "1999-09-03T00:55:38-04:00",
              "utc": "1999-09-03T04:55:38Z",
              "ms": 936334537578.9216
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 07:25 on Thu 2 Sep to 05:10 on Fri 3 Sep.",
          "fact": "1999-09-02T11:25:00Z → 1999-09-03T09:10:16Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:08–00:56 on the 1st, 00:08–00:56 on the 2nd.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during niśītha. It covers 0 of 48 minutes on the 1st and 48 of 48 on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 15279 s"
        },
        {
          "step": "ruling",
          "text": "Janmāṣṭamī, Valencia, 1999: Thursday 2 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "janmashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami."
          }
        ],
        "not_evaluated": "The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.",
        "kaala": "nishita",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Janmāṣṭamī 1999 falls on Thursday 2 September. Aṣṭamī runs from 07:25 on Thu 2 Sep to 05:10 on Fri 3 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/janmashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-09-05",
      "festival": "ekadashi",
      "name": "Ajā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19602,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-09-05T00:55:58-04:00",
          "utc": "1999-09-05T04:55:58Z",
          "ms": 936507357575.3002
        },
        "end": {
          "local": "1999-09-05T23:01:35-04:00",
          "utc": "1999-09-06T03:01:35Z",
          "ms": 936586895346.2019
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-05T00:55:58-04:00",
          "utc": "1999-09-05T04:55:58Z",
          "ms": 936507357575.3002
        },
        "end": {
          "local": "1999-09-05T23:01:35-04:00",
          "utc": "1999-09-06T03:01:35Z",
          "ms": 936586895346.2019
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-09-05",
          "window": {
            "start": {
              "local": "1999-09-05T06:22:39-04:00",
              "utc": "1999-09-05T10:22:39Z",
              "ms": 936526959360.442
            },
            "end": {
              "local": "1999-09-05T06:22:39-04:00",
              "utc": "1999-09-05T10:22:39Z",
              "ms": 936526959360.442
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-09-06",
          "window": {
            "start": {
              "local": "1999-09-06T06:22:36-04:00",
              "utc": "1999-09-06T10:22:36Z",
              "ms": 936613355672.9185
            },
            "end": {
              "local": "1999-09-06T06:22:36-04:00",
              "utc": "1999-09-06T10:22:36Z",
              "ms": 936613355672.9185
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-09-06",
        "start": {
          "local": "1999-09-06T06:22:36-04:00",
          "utc": "1999-09-06T10:22:36Z",
          "ms": 936613355672.9185
        },
        "end": {
          "local": "1999-09-06T08:49:41-04:00",
          "utc": "1999-09-06T12:49:41Z",
          "ms": 936622181450.9427
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-09-06T21:19:28-04:00",
          "utc": "1999-09-07T01:19:28Z",
          "ms": 936667168306.8716
        },
        "hari_vasara_end": {
          "local": "1999-09-06T04:36:04-04:00",
          "utc": "1999-09-06T08:36:04Z",
          "ms": 936606963586.3694
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 00:56 on Sun 5 Sep to 23:02 on Sun 5 Sep.",
          "fact": "1999-09-05T04:55:58Z → 1999-09-06T03:01:35Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:23 on the 5th and 06:23 on the 6th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 5th and is not on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 19602 s"
        },
        {
          "step": "ruling",
          "text": "Ajā Ekādaśī, Valencia, 1999: Sunday 5 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Ajā Ekādaśī 1999 falls on Sunday 5 September. Ekādaśī runs from 00:56 on Sun 5 Sep to 23:02 on Sun 5 Sep and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-09-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/aghora-chaturdashi",
      "festival": "aghora-chaturdashi",
      "name": "Aghora Caturdaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-07",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 536,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-09-07T19:52:55-04:00",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        },
        "end": {
          "local": "1999-09-08T18:45:47-04:00",
          "utc": "1999-09-08T22:45:47Z",
          "ms": 936830746835.1794
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-07T19:52:55-04:00",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        },
        "end": {
          "local": "1999-09-08T18:45:47-04:00",
          "utc": "1999-09-08T22:45:47Z",
          "ms": 936830746835.1794
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-09-07",
          "window": {
            "start": {
              "local": "1999-09-07T18:37:28-04:00",
              "utc": "1999-09-07T22:37:28Z",
              "ms": 936743847832.0011
            },
            "end": {
              "local": "1999-09-07T20:11:28-04:00",
              "utc": "1999-09-08T00:11:28Z",
              "ms": 936749487833.9487
            }
          },
          "covered_min": 19,
          "window_min": 94,
          "qualifies": true
        },
        {
          "local_date": "1999-09-08",
          "window": {
            "start": {
              "local": "1999-09-08T18:36:51-04:00",
              "utc": "1999-09-08T22:36:51Z",
              "ms": 936830210880.9666
            },
            "end": {
              "local": "1999-09-08T20:10:55-04:00",
              "utc": "1999-09-09T00:10:55Z",
              "ms": 936835855260.9025
            }
          },
          "covered_min": 9,
          "window_min": 94,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 19:53 on Tue 7 Sep to 18:46 on Wed 8 Sep.",
          "fact": "1999-09-07T23:52:55Z → 1999-09-08T22:45:47Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:37–20:11 on the 7th, 18:37–20:11 on the 8th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during pradoṣa. It covers 19 of 94 minutes on the 7th and 9 of 94 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 536 s"
        },
        {
          "step": "ruling",
          "text": "Aghora Caturdaśī, Valencia, 1999: Tuesday 7 September.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "aghora-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 14 Aghora caturdasi (pradosa vyapini)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-07",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-07",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Aghora Caturdaśī 1999 falls on Tuesday 7 September. Caturdaśī runs from 19:53 on Tue 7 Sep to 18:46 on Wed 8 Sep and covers 19 of 94 minutes of pradoṣa that evening. It also reaches the next evening for 9 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/valencia/festivals/1999/aghora-chaturdashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-09-07",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1112,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-09-06T21:19:28-04:00",
          "utc": "1999-09-07T01:19:28Z",
          "ms": 936667168306.8716
        },
        "end": {
          "local": "1999-09-07T19:52:55-04:00",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-06T21:19:28-04:00",
          "utc": "1999-09-07T01:19:28Z",
          "ms": 936667168306.8716
        },
        "end": {
          "local": "1999-09-07T19:52:55-04:00",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-09-06",
          "window": {
            "start": {
              "local": "1999-09-06T18:38:05-04:00",
              "utc": "1999-09-06T22:38:05Z",
              "ms": 936657484563.0397
            },
            "end": {
              "local": "1999-09-06T20:12:00-04:00",
              "utc": "1999-09-07T00:12:00Z",
              "ms": 936663120198.7932
            }
          },
          "covered_min": 0,
          "window_min": 94,
          "qualifies": false
        },
        {
          "local_date": "1999-09-07",
          "window": {
            "start": {
              "local": "1999-09-07T18:37:28-04:00",
              "utc": "1999-09-07T22:37:28Z",
              "ms": 936743847832.0011
            },
            "end": {
              "local": "1999-09-07T20:11:28-04:00",
              "utc": "1999-09-08T00:11:28Z",
              "ms": 936749487833.9487
            }
          },
          "covered_min": 75,
          "window_min": 94,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 21:19 on Mon 6 Sep to 19:53 on Tue 7 Sep.",
          "fact": "1999-09-07T01:19:28Z → 1999-09-07T23:52:55Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:38–20:12 on the 6th, 18:37–20:11 on the 7th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 94 minutes on the 6th and 75 of 94 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 1112 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Tuesday 7 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Tuesday 7 September. Trayodaśī runs from 21:19 on Mon 6 Sep to 19:53 on Tue 7 Sep and covers 75 of 94 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-09-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-09-07",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15182,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-09-07T19:52:55-04:00",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        },
        "end": {
          "local": "1999-09-08T18:45:47-04:00",
          "utc": "1999-09-08T22:45:47Z",
          "ms": 936830746835.1794
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-07T19:52:55-04:00",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        },
        "end": {
          "local": "1999-09-08T18:45:47-04:00",
          "utc": "1999-09-08T22:45:47Z",
          "ms": 936830746835.1794
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-09-07",
          "window": {
            "start": {
              "local": "1999-09-08T00:05:58-04:00",
              "utc": "1999-09-08T04:05:58Z",
              "ms": 936763557839.3046
            },
            "end": {
              "local": "1999-09-08T00:53:58-04:00",
              "utc": "1999-09-08T04:53:58Z",
              "ms": 936766437839.3046
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-08",
          "window": {
            "start": {
              "local": "1999-09-09T00:05:37-04:00",
              "utc": "1999-09-09T04:05:37Z",
              "ms": 936849937305.7263
            },
            "end": {
              "local": "1999-09-09T00:53:37-04:00",
              "utc": "1999-09-09T04:53:37Z",
              "ms": 936852817305.7263
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 19:53 on Tue 7 Sep to 18:46 on Wed 8 Sep.",
          "fact": "1999-09-07T23:52:55Z → 1999-09-08T22:45:47Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:06–00:54 on the 7th, 00:06–00:54 on the 8th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 7th and 0 of 48 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 15182 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Tuesday 7 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Tuesday 7 September. Caturdaśī runs from 19:53 on Tue 7 Sep to 18:46 on Wed 8 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-09-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/rudra-vrata",
      "festival": "rudra-vrata",
      "name": "Rudra Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17618,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-09-09T18:02:15-04:00",
          "utc": "1999-09-09T22:02:15Z",
          "ms": 936914535349.9851
        },
        "end": {
          "local": "1999-09-10T17:46:35-04:00",
          "utc": "1999-09-10T21:46:35Z",
          "ms": 936999995480.404
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-09T18:02:15-04:00",
          "utc": "1999-09-09T22:02:15Z",
          "ms": 936914535349.9851
        },
        "end": {
          "local": "1999-09-10T17:46:35-04:00",
          "utc": "1999-09-10T21:46:35Z",
          "ms": 936999995480.404
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-09",
          "window": {
            "start": {
              "local": "1999-09-09T12:05:19-04:00",
              "utc": "1999-09-09T16:05:19Z",
              "ms": 936893118728.929
            },
            "end": {
              "local": "1999-09-09T12:53:19-04:00",
              "utc": "1999-09-09T16:53:19Z",
              "ms": 936895998728.929
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-09-10",
          "window": {
            "start": {
              "local": "1999-09-10T12:04:58-04:00",
              "utc": "1999-09-10T16:04:58Z",
              "ms": 936979497941.6486
            },
            "end": {
              "local": "1999-09-10T12:52:58-04:00",
              "utc": "1999-09-10T16:52:58Z",
              "ms": 936982377941.6486
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 18:02 on Thu 9 Sep to 17:47 on Fri 10 Sep.",
          "fact": "1999-09-09T22:02:15Z → 1999-09-10T21:46:35Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 9th, 12:05–12:53 on the 10th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 17618 s"
        },
        {
          "step": "ruling",
          "text": "Rudra Vrata, Valencia, 1999: Friday 10 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rudra-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Rudra vrata (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Rudra Vrata 1999 falls on Friday 10 September. Pratipadā runs from 18:02 on Thu 9 Sep to 17:47 on Fri 10 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/rudra-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/haritalika-vrata",
      "festival": "haritalika-vrata",
      "name": "Haritālikā Vrata",
      "everyday": "Hartalika Teej",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18590,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-09-11T18:02:27-04:00",
          "utc": "1999-09-11T22:02:27Z",
          "ms": 937087346745.8887
        },
        "end": {
          "local": "1999-09-12T18:52:03-04:00",
          "utc": "1999-09-12T22:52:03Z",
          "ms": 937176723492.0656
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-11T18:02:27-04:00",
          "utc": "1999-09-11T22:02:27Z",
          "ms": 937087346745.8887
        },
        "end": {
          "local": "1999-09-12T18:52:03-04:00",
          "utc": "1999-09-12T22:52:03Z",
          "ms": 937176723492.0656
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-11",
          "window": {
            "start": {
              "local": "1999-09-11T12:04:37-04:00",
              "utc": "1999-09-11T16:04:37Z",
              "ms": 937065877017.0496
            },
            "end": {
              "local": "1999-09-11T12:52:37-04:00",
              "utc": "1999-09-11T16:52:37Z",
              "ms": 937068757017.0496
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-09-12",
          "window": {
            "start": {
              "local": "1999-09-12T12:04:16-04:00",
              "utc": "1999-09-12T16:04:16Z",
              "ms": 937152255970.863
            },
            "end": {
              "local": "1999-09-12T12:52:16-04:00",
              "utc": "1999-09-12T16:52:16Z",
              "ms": 937155135970.863
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 18:02 on Sat 11 Sep to 18:52 on Sun 12 Sep.",
          "fact": "1999-09-11T22:02:27Z → 1999-09-12T22:52:03Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 11th, 12:04–12:52 on the 12th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 18590 s"
        },
        {
          "step": "ruling",
          "text": "Haritālikā Vrata, Valencia, 1999: Sunday 12 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "haritalika-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Haritalika vrata (paraviddha), Gauri vrata (Orissa), Gauri (Mysore)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Haritālikā Vrata (Hartalika Teej) 1999 falls on Sunday 12 September. Tṛtīyā runs from 18:02 on Sat 11 Sep to 18:52 on Sun 12 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/haritalika-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ganesha-chaturthi",
      "festival": "ganesha-chaturthi",
      "name": "Gaṇeśa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21588,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-09-12T18:52:03-04:00",
          "utc": "1999-09-12T22:52:03Z",
          "ms": 937176723492.0656
        },
        "end": {
          "local": "1999-09-13T20:15:16-04:00",
          "utc": "1999-09-14T00:15:16Z",
          "ms": 937268115837.0543
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-12T18:52:03-04:00",
          "utc": "1999-09-12T22:52:03Z",
          "ms": 937176723492.0656
        },
        "end": {
          "local": "1999-09-13T20:15:16-04:00",
          "utc": "1999-09-14T00:15:16Z",
          "ms": 937268115837.0543
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-12",
          "window": {
            "start": {
              "local": "1999-09-12T12:04:16-04:00",
              "utc": "1999-09-12T16:04:16Z",
              "ms": 937152255970.863
            },
            "end": {
              "local": "1999-09-12T12:52:16-04:00",
              "utc": "1999-09-12T16:52:16Z",
              "ms": 937155135970.863
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-09-13",
          "window": {
            "start": {
              "local": "1999-09-13T12:03:55-04:00",
              "utc": "1999-09-13T16:03:55Z",
              "ms": 937238634819.5238
            },
            "end": {
              "local": "1999-09-13T12:51:55-04:00",
              "utc": "1999-09-13T16:51:55Z",
              "ms": 937241514819.5238
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 18:52 on Sun 12 Sep to 20:15 on Mon 13 Sep.",
          "fact": "1999-09-12T22:52:03Z → 1999-09-14T00:15:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 12th, 12:04–12:52 on the 13th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 21588 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Caturthī, Valencia, 1999: Monday 13 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ganesha-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Gaṇeśa Caturthī 1999 falls on Monday 13 September. Caturthī runs from 18:52 on Sun 12 Sep to 20:15 on Mon 13 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ganesha-chaturthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/rishi-panchami",
      "festival": "rishi-panchami",
      "name": "Ṛṣi Pañcamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26601,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-09-13T20:15:16-04:00",
          "utc": "1999-09-14T00:15:16Z",
          "ms": 937268115837.0543
        },
        "end": {
          "local": "1999-09-14T22:08:33-04:00",
          "utc": "1999-09-15T02:08:33Z",
          "ms": 937361313448.3031
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-13T20:15:16-04:00",
          "utc": "1999-09-14T00:15:16Z",
          "ms": 937268115837.0543
        },
        "end": {
          "local": "1999-09-14T22:08:33-04:00",
          "utc": "1999-09-15T02:08:33Z",
          "ms": 937361313448.3031
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-13",
          "window": {
            "start": {
              "local": "1999-09-13T12:03:55-04:00",
              "utc": "1999-09-13T16:03:55Z",
              "ms": 937238634819.5238
            },
            "end": {
              "local": "1999-09-13T12:51:55-04:00",
              "utc": "1999-09-13T16:51:55Z",
              "ms": 937241514819.5238
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-09-14",
          "window": {
            "start": {
              "local": "1999-09-14T12:03:34-04:00",
              "utc": "1999-09-14T16:03:34Z",
              "ms": 937325013580.1833
            },
            "end": {
              "local": "1999-09-14T12:51:34-04:00",
              "utc": "1999-09-14T16:51:34Z",
              "ms": 937327893580.1833
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 20:15 on Mon 13 Sep to 22:09 on Tue 14 Sep.",
          "fact": "1999-09-14T00:15:16Z → 1999-09-15T02:08:33Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 13th, 12:04–12:52 on the 14th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: disputed → only-day · margin 26601 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Pañcamī, Valencia, 1999: Tuesday 14 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rishi-panchami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Rsi pancami (madhyahnavyapini) — If occurs on two successive days, it is to be observed according to Madhava on the 1st day and according to Hemadri and Divodasa on the 2nd day"
          }
        ],
        "kaala": "madhyahna",
        "priority": "disputed",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Ṛṣi Pañcamī 1999 falls on Tuesday 14 September. Pañcamī runs from 20:15 on Mon 13 Sep to 22:09 on Tue 14 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/rishi-panchami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/surya-shashthi-bhadrapada",
      "festival": "surya-shashthi-bhadrapada",
      "name": "Sūrya Ṣaṣṭhī (Bhādrapada)",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33420,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-09-14T22:08:33-04:00",
          "utc": "1999-09-15T02:08:33Z",
          "ms": 937361313448.3031
        },
        "end": {
          "local": "1999-09-16T00:24:31-04:00",
          "utc": "1999-09-16T04:24:31Z",
          "ms": 937455871216.7715
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-14T22:08:33-04:00",
          "utc": "1999-09-15T02:08:33Z",
          "ms": 937361313448.3031
        },
        "end": {
          "local": "1999-09-16T00:24:31-04:00",
          "utc": "1999-09-16T04:24:31Z",
          "ms": 937455871216.7715
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-14",
          "window": {
            "start": {
              "local": "1999-09-14T12:03:34-04:00",
              "utc": "1999-09-14T16:03:34Z",
              "ms": 937325013580.1833
            },
            "end": {
              "local": "1999-09-14T12:51:34-04:00",
              "utc": "1999-09-14T16:51:34Z",
              "ms": 937327893580.1833
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-09-15",
          "window": {
            "start": {
              "local": "1999-09-15T12:03:12-04:00",
              "utc": "1999-09-15T16:03:12Z",
              "ms": 937411392270.682
            },
            "end": {
              "local": "1999-09-15T12:51:12-04:00",
              "utc": "1999-09-15T16:51:12Z",
              "ms": 937414272270.682
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 22:09 on Tue 14 Sep to 00:25 on Thu 16 Sep.",
          "fact": "1999-09-15T02:08:33Z → 1999-09-16T04:24:31Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 14th, 12:03–12:51 on the 15th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 33420 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Valencia, 1999: Wednesday 15 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "surya-shashthi-bhadrapada",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Surya sasthi (paraviddha), Lolarka sasthi"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Sūrya Ṣaṣṭhī (Bhādrapada) 1999 falls on Wednesday 15 September. Ṣaṣṭhī runs from 22:09 on Tue 14 Sep to 00:25 on Thu 16 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/surya-shashthi-bhadrapada",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/muktabharana-vrata",
      "festival": "muktabharana-vrata",
      "name": "Muktābharaṇa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33031,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-09-16T00:24:31-04:00",
          "utc": "1999-09-16T04:24:31Z",
          "ms": 937455871216.7715
        },
        "end": {
          "local": "1999-09-17T02:51:59-04:00",
          "utc": "1999-09-17T06:51:59Z",
          "ms": 937551118890.301
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-16T00:24:31-04:00",
          "utc": "1999-09-16T04:24:31Z",
          "ms": 937455871216.7715
        },
        "end": {
          "local": "1999-09-17T02:51:59-04:00",
          "utc": "1999-09-17T06:51:59Z",
          "ms": 937551118890.301
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-16",
          "window": {
            "start": {
              "local": "1999-09-16T12:02:51-04:00",
              "utc": "1999-09-16T16:02:51Z",
              "ms": 937497770909.5037
            },
            "end": {
              "local": "1999-09-16T12:50:51-04:00",
              "utc": "1999-09-16T16:50:51Z",
              "ms": 937500650909.5037
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-17",
          "window": {
            "start": {
              "local": "1999-09-17T12:02:30-04:00",
              "utc": "1999-09-17T16:02:30Z",
              "ms": 937584149515.7305
            },
            "end": {
              "local": "1999-09-17T12:50:30-04:00",
              "utc": "1999-09-17T16:50:30Z",
              "ms": 937587029515.7305
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 00:25 on Thu 16 Sep to 02:52 on Fri 17 Sep.",
          "fact": "1999-09-16T04:24:31Z → 1999-09-17T06:51:59Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 16th, 12:02–12:50 on the 17th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 33031 s"
        },
        {
          "step": "ruling",
          "text": "Muktābharaṇa Vrata, Valencia, 1999: Thursday 16 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "muktabharana-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Muktabharana vrata (purvaviddha), Lalita saptami (Bengal & Orissa)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Muktābharaṇa Vrata 1999 falls on Thursday 16 September. Saptamī runs from 00:25 on Thu 16 Sep to 02:52 on Fri 17 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/muktabharana-vrata",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/radhashtami",
      "festival": "radhashtami",
      "name": "Rādhāṣṭamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24300,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-09-17T02:51:59-04:00",
          "utc": "1999-09-17T06:51:59Z",
          "ms": 937551118890.301
        },
        "end": {
          "local": "1999-09-18T05:17:08-04:00",
          "utc": "1999-09-18T09:17:08Z",
          "ms": 937646228346.1394
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-17T02:51:59-04:00",
          "utc": "1999-09-17T06:51:59Z",
          "ms": 937551118890.301
        },
        "end": {
          "local": "1999-09-18T05:17:08-04:00",
          "utc": "1999-09-18T09:17:08Z",
          "ms": 937646228346.1394
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-17",
          "window": {
            "start": {
              "local": "1999-09-17T12:02:30-04:00",
              "utc": "1999-09-17T16:02:30Z",
              "ms": 937584149515.7305
            },
            "end": {
              "local": "1999-09-17T12:50:30-04:00",
              "utc": "1999-09-17T16:50:30Z",
              "ms": 937587029515.7305
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-18",
          "window": {
            "start": {
              "local": "1999-09-18T12:02:08-04:00",
              "utc": "1999-09-18T16:02:08Z",
              "ms": 937670528109.0143
            },
            "end": {
              "local": "1999-09-18T12:50:08-04:00",
              "utc": "1999-09-18T16:50:08Z",
              "ms": 937673408109.0143
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 02:52 on Fri 17 Sep to 05:17 on Sat 18 Sep.",
          "fact": "1999-09-17T06:51:59Z → 1999-09-18T09:17:08Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 17th, 12:02–12:50 on the 18th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 24300 s"
        },
        {
          "step": "ruling",
          "text": "Rādhāṣṭamī, Valencia, 1999: Friday 17 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "radhashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Rādhāṣṭamī 1999 falls on Friday 17 September. Aṣṭamī runs from 02:52 on Fri 17 Sep to 05:17 on Sat 18 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/radhashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-09-21",
      "festival": "ekadashi",
      "name": "Parivartanī Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9758,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-09-20T09:04:12-04:00",
          "utc": "1999-09-20T13:04:12Z",
          "ms": 937832651757.0348
        },
        "end": {
          "local": "1999-09-21T10:03:43-04:00",
          "utc": "1999-09-21T14:03:43Z",
          "ms": 937922622799.6349
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-20T09:04:12-04:00",
          "utc": "1999-09-20T13:04:12Z",
          "ms": 937832651757.0348
        },
        "end": {
          "local": "1999-09-21T10:03:43-04:00",
          "utc": "1999-09-21T14:03:43Z",
          "ms": 937922622799.6349
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-09-20",
          "window": {
            "start": {
              "local": "1999-09-20T06:21:34-04:00",
              "utc": "1999-09-20T10:21:34Z",
              "ms": 937822893528.6727
            },
            "end": {
              "local": "1999-09-20T06:21:34-04:00",
              "utc": "1999-09-20T10:21:34Z",
              "ms": 937822893528.6727
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-09-21",
          "window": {
            "start": {
              "local": "1999-09-21T06:21:29-04:00",
              "utc": "1999-09-21T10:21:29Z",
              "ms": 937909288920.0684
            },
            "end": {
              "local": "1999-09-21T06:21:29-04:00",
              "utc": "1999-09-21T10:21:29Z",
              "ms": 937909288920.0684
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-09-22",
        "start": {
          "local": "1999-09-22T06:21:24-04:00",
          "utc": "1999-09-22T10:21:24Z",
          "ms": 937995684381.1942
        },
        "end": {
          "local": "1999-09-22T08:46:44-04:00",
          "utc": "1999-09-22T12:46:44Z",
          "ms": 938004403735.2455
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-09-22T10:19:00-04:00",
          "utc": "1999-09-22T14:19:00Z",
          "ms": 938009939862.2031
        },
        "hari_vasara_end": {
          "local": "1999-09-21T16:07:32-04:00",
          "utc": "1999-09-21T20:07:32Z",
          "ms": 937944452065.277
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 09:04 on Mon 20 Sep to 10:04 on Tue 21 Sep.",
          "fact": "1999-09-20T13:04:12Z → 1999-09-21T14:03:43Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:22 on the 20th and 06:21 on the 21st.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 20th and is on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 9758 s"
        },
        {
          "step": "ruling",
          "text": "Parivartanī Ekādaśī, Valencia, 1999: Tuesday 21 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Parivartanī Ekādaśī 1999 falls on Tuesday 21 September. Ekādaśī runs from 09:04 on Mon 20 Sep to 10:04 on Tue 21 Sep and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-09-21",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vamana-jayanti",
      "festival": "vamana-jayanti",
      "name": "Vāmana Jayantī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6103,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-09-21T10:03:43-04:00",
          "utc": "1999-09-21T14:03:43Z",
          "ms": 937922622799.6349
        },
        "end": {
          "local": "1999-09-22T10:19:00-04:00",
          "utc": "1999-09-22T14:19:00Z",
          "ms": 938009939862.2031
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-21T10:03:43-04:00",
          "utc": "1999-09-21T14:03:43Z",
          "ms": 937922622799.6349
        },
        "end": {
          "local": "1999-09-22T10:19:00-04:00",
          "utc": "1999-09-22T14:19:00Z",
          "ms": 938009939862.2031
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-21",
          "window": {
            "start": {
              "local": "1999-09-21T12:01:04-04:00",
              "utc": "1999-09-21T16:01:04Z",
              "ms": 937929664016.4143
            },
            "end": {
              "local": "1999-09-21T12:49:04-04:00",
              "utc": "1999-09-21T16:49:04Z",
              "ms": 937932544016.4143
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-22",
          "window": {
            "start": {
              "local": "1999-09-22T12:00:43-04:00",
              "utc": "1999-09-22T16:00:43Z",
              "ms": 938016042766.3223
            },
            "end": {
              "local": "1999-09-22T12:48:43-04:00",
              "utc": "1999-09-22T16:48:43Z",
              "ms": 938018922766.3223
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 10:04 on Tue 21 Sep to 10:19 on Wed 22 Sep.",
          "fact": "1999-09-21T14:03:43Z → 1999-09-22T14:19:00Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:01–12:49 on the 21st, 12:01–12:49 on the 22nd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 6103 s"
        },
        {
          "step": "ruling",
          "text": "Vāmana Jayantī, Valencia, 1999: Tuesday 21 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vamana-jayanti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Visnuparivartanotsava, Sakrotthana (in any of the naksatras U. Asadha, Sravana & Dhanistha), Kalki dvadasi, Sravana dvadasi (when combined with naksatra Sravana), Vamana jayanti (madhyahna vyapini)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vāmana Jayantī 1999 falls on Tuesday 21 September. Dvādaśī runs from 10:04 on Tue 21 Sep to 10:19 on Wed 22 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vamana-jayanti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-09-22",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29341,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-09-22T10:19:00-04:00",
          "utc": "1999-09-22T14:19:00Z",
          "ms": 938009939862.2031
        },
        "end": {
          "local": "1999-09-23T09:49:25-04:00",
          "utc": "1999-09-23T13:49:25Z",
          "ms": 938094565134.7363
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-22T10:19:00-04:00",
          "utc": "1999-09-22T14:19:00Z",
          "ms": 938009939862.2031
        },
        "end": {
          "local": "1999-09-23T09:49:25-04:00",
          "utc": "1999-09-23T13:49:25Z",
          "ms": 938094565134.7363
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-09-22",
          "window": {
            "start": {
              "local": "1999-09-22T18:28:01-04:00",
              "utc": "1999-09-22T22:28:01Z",
              "ms": 938039281151.4503
            },
            "end": {
              "local": "1999-09-22T20:03:08-04:00",
              "utc": "1999-09-23T00:03:08Z",
              "ms": 938044987655.5762
            }
          },
          "covered_min": 95,
          "window_min": 95,
          "qualifies": true
        },
        {
          "local_date": "1999-09-23",
          "window": {
            "start": {
              "local": "1999-09-23T18:27:23-04:00",
              "utc": "1999-09-23T22:27:23Z",
              "ms": 938125643289.4519
            },
            "end": {
              "local": "1999-09-23T20:02:34-04:00",
              "utc": "1999-09-24T00:02:34Z",
              "ms": 938131354263.5092
            }
          },
          "covered_min": 0,
          "window_min": 95,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 10:19 on Wed 22 Sep to 09:49 on Thu 23 Sep.",
          "fact": "1999-09-22T14:19:00Z → 1999-09-23T13:49:25Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:28–20:03 on the 22nd, 18:27–20:03 on the 23rd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 95 of 95 minutes on the 22nd and 0 of 95 on the 23rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29341 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Wednesday 22 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Wednesday 22 September. Trayodaśī runs from 10:19 on Wed 22 Sep to 09:49 on Thu 23 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-09-22",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ananta-chaturdashi",
      "festival": "ananta-chaturdashi",
      "name": "Ananta Caturdaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-23",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 494,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-09-23T09:49:25-04:00",
          "utc": "1999-09-23T13:49:25Z",
          "ms": 938094565134.7363
        },
        "end": {
          "local": "1999-09-24T08:38:08-04:00",
          "utc": "1999-09-24T12:38:08Z",
          "ms": 938176687579.8534
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-23T09:49:25-04:00",
          "utc": "1999-09-23T13:49:25Z",
          "ms": 938094565134.7363
        },
        "end": {
          "local": "1999-09-24T08:38:08-04:00",
          "utc": "1999-09-24T12:38:08Z",
          "ms": 938176687579.8534
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "1999-09-23",
          "window": {
            "start": {
              "local": "1999-09-23T06:21:20-04:00",
              "utc": "1999-09-23T10:21:20Z",
              "ms": 938082079932.3938
            },
            "end": {
              "local": "1999-09-23T08:46:33-04:00",
              "utc": "1999-09-23T12:46:33Z",
              "ms": 938090792603.8054
            }
          },
          "covered_min": 0,
          "window_min": 145,
          "qualifies": false
        },
        {
          "local_date": "1999-09-24",
          "window": {
            "start": {
              "local": "1999-09-24T06:21:16-04:00",
              "utc": "1999-09-24T10:21:16Z",
              "ms": 938168475594.8817
            },
            "end": {
              "local": "1999-09-24T08:46:22-04:00",
              "utc": "1999-09-24T12:46:22Z",
              "ms": 938177181586.449
            }
          },
          "covered_min": 137,
          "window_min": 145,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 09:49 on Thu 23 Sep to 08:38 on Fri 24 Sep.",
          "fact": "1999-09-23T13:49:25Z → 1999-09-24T12:38:08Z"
        },
        {
          "step": "kaala",
          "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:21–08:47 on the 23rd, 06:21–08:46 on the 24th.",
          "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must hold through the first three muhūrtas after sunrise. It covers 0 of 145 minutes on the 23rd and 137 of 145 on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Neither morning qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 494 s"
        },
        {
          "step": "ruling",
          "text": "Ananta Caturdaśī, Valencia, 1999: Thursday 23 September.",
          "fact": "confidence: boundary (absent-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ananta-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 14 Ananta caturdasi (covering three muhurtas from sunrise, but one muhurta in Bengal)."
          }
        ],
        "not_evaluated": "In Bengal the row asks for one muhūrta from sunrise; that reading is not applied.",
        "kaala": "udaya-3",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-23",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-23",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Ananta Caturdaśī 1999 falls on Thursday 23 September. Caturdaśī runs from 09:49 on Thu 23 Sep to 08:38 on Fri 24 Sep, and reaches the first three muhūrtas after sunrise on neither day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ananta-chaturdashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-09-27",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-27",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 3399,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-09-27T23:16:29-04:00",
          "utc": "1999-09-28T03:16:29Z",
          "ms": 938488589203.7693
        },
        "end": {
          "local": "1999-09-28T20:29:14-04:00",
          "utc": "1999-09-29T00:29:14Z",
          "ms": 938564953903.9341
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-27T23:16:29-04:00",
          "utc": "1999-09-28T03:16:29Z",
          "ms": 938488589203.7693
        },
        "end": {
          "local": "1999-09-28T20:29:14-04:00",
          "utc": "1999-09-29T00:29:14Z",
          "ms": 938564953903.9341
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-09-27",
          "window": {
            "start": {
              "local": "1999-09-27T20:34:20-04:00",
              "utc": "1999-09-28T00:34:20Z",
              "ms": 938478859518.5408
            },
            "end": {
              "local": "1999-09-27T20:34:20-04:00",
              "utc": "1999-09-28T00:34:20Z",
              "ms": 938478859518.5408
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-09-28",
          "window": {
            "start": {
              "local": "1999-09-28T21:25:53-04:00",
              "utc": "1999-09-29T01:25:53Z",
              "ms": 938568352779.6569
            },
            "end": {
              "local": "1999-09-28T21:25:53-04:00",
              "utc": "1999-09-29T01:25:53Z",
              "ms": 938568352779.6569
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 23:16 on Mon 27 Sep to 20:29 on Tue 28 Sep.",
          "fact": "1999-09-28T03:16:29Z → 1999-09-29T00:29:14Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:34 on the 27th and 21:26 on the 28th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 27th and is not on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Neither moonrise qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 3399 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Monday 27 September.",
          "fact": "confidence: boundary (absent-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-27",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-27",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Monday 27 September. Caturthī runs from 23:16 on Mon 27 Sep to 20:29 on Tue 28 Sep, and is current at moonrise on neither day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-09-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/chandra-shashthi",
      "festival": "chandra-shashthi",
      "name": "Candra Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-09-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16358,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-09-29T17:47:14-04:00",
          "utc": "1999-09-29T21:47:14Z",
          "ms": 938641633778.2814
        },
        "end": {
          "local": "1999-09-30T15:16:40-04:00",
          "utc": "1999-09-30T19:16:40Z",
          "ms": 938718999618.5751
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-09-29T17:47:14-04:00",
          "utc": "1999-09-29T21:47:14Z",
          "ms": 938641633778.2814
        },
        "end": {
          "local": "1999-09-30T15:16:40-04:00",
          "utc": "1999-09-30T19:16:40Z",
          "ms": 938718999618.5751
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-09-29",
          "window": {
            "start": {
              "local": "1999-09-29T22:19:51-04:00",
              "utc": "1999-09-30T02:19:51Z",
              "ms": 938657991280.9933
            },
            "end": {
              "local": "1999-09-29T22:19:51-04:00",
              "utc": "1999-09-30T02:19:51Z",
              "ms": 938657991280.9933
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-09-30",
          "window": {
            "start": {
              "local": "1999-09-30T23:16:04-04:00",
              "utc": "1999-10-01T03:16:04Z",
              "ms": 938747764146.2069
            },
            "end": {
              "local": "1999-09-30T23:16:04-04:00",
              "utc": "1999-10-01T03:16:04Z",
              "ms": 938747764146.2069
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 17:47 on Wed 29 Sep to 15:17 on Thu 30 Sep.",
          "fact": "1999-09-29T21:47:14Z → 1999-09-30T19:16:40Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:20 on the 29th and 23:16 on the 30th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be current at moonrise. It is on the 29th and is not on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 16358 s"
        },
        {
          "step": "ruling",
          "text": "Candra Ṣaṣṭhī, Valencia, 1999: Wednesday 29 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "chandra-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)."
          }
        ],
        "kaala": "moonrise",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-09-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Candra Ṣaṣṭhī 1999 falls on Wednesday 29 September. Ṣaṣṭhī runs from 17:47 on Wed 29 Sep to 15:17 on Thu 30 Sep and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/chandra-shashthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/jitashtami",
      "festival": "jitashtami",
      "name": "Jitāṣṭamī",
      "everyday": "Jitiya",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19217,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-10-01T13:02:10-04:00",
          "utc": "1999-10-01T17:02:10Z",
          "ms": 938797330243.3048
        },
        "end": {
          "local": "1999-10-02T11:06:48-04:00",
          "utc": "1999-10-02T15:06:48Z",
          "ms": 938876807912.8059
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-01T13:02:10-04:00",
          "utc": "1999-10-01T17:02:10Z",
          "ms": 938797330243.3048
        },
        "end": {
          "local": "1999-10-02T11:06:48-04:00",
          "utc": "1999-10-02T15:06:48Z",
          "ms": 938876807912.8059
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-10-01",
          "window": {
            "start": {
              "local": "1999-10-01T18:22:27-04:00",
              "utc": "1999-10-01T22:22:27Z",
              "ms": 938816547164.5151
            },
            "end": {
              "local": "1999-10-01T19:58:14-04:00",
              "utc": "1999-10-01T23:58:14Z",
              "ms": 938822293887.335
            }
          },
          "covered_min": 96,
          "window_min": 96,
          "qualifies": true
        },
        {
          "local_date": "1999-10-02",
          "window": {
            "start": {
              "local": "1999-10-02T18:21:51-04:00",
              "utc": "1999-10-02T22:21:51Z",
              "ms": 938902911387.769
            },
            "end": {
              "local": "1999-10-02T19:57:43-04:00",
              "utc": "1999-10-02T23:57:43Z",
              "ms": 938908662568.026
            }
          },
          "covered_min": 0,
          "window_min": 96,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 13:02 on Fri 1 Oct to 11:07 on Sat 2 Oct.",
          "fact": "1999-10-01T17:02:10Z → 1999-10-02T15:06:48Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:22–19:58 on the 1st, 18:22–19:58 on the 2nd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during pradoṣa. It covers 96 of 96 minutes on the 1st and 0 of 96 on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 19217 s"
        },
        {
          "step": "ruling",
          "text": "Jitāṣṭamī, Valencia, 1999: Friday 1 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "jitashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja"
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Jitāṣṭamī (Jitiya) 1999 falls on Friday 1 October. Aṣṭamī runs from 13:02 on Fri 1 Oct to 11:07 on Sat 2 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/jitashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/mahalakshmi-vrata-samapana",
      "festival": "mahalakshmi-vrata-samapana",
      "name": "Mahālakṣmī Vrata Samāpana",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39180,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-10-01T13:02:10-04:00",
          "utc": "1999-10-01T17:02:10Z",
          "ms": 938797330243.3048
        },
        "end": {
          "local": "1999-10-02T11:06:48-04:00",
          "utc": "1999-10-02T15:06:48Z",
          "ms": 938876807912.8059
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-01T13:02:10-04:00",
          "utc": "1999-10-01T17:02:10Z",
          "ms": 938797330243.3048
        },
        "end": {
          "local": "1999-10-02T11:06:48-04:00",
          "utc": "1999-10-02T15:06:48Z",
          "ms": 938876807912.8059
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-09-30",
          "window": {
            "start": {
              "local": "1999-09-30T23:16:04-04:00",
              "utc": "1999-10-01T03:16:04Z",
              "ms": 938747764146.2069
            },
            "end": {
              "local": "1999-09-30T23:16:04-04:00",
              "utc": "1999-10-01T03:16:04Z",
              "ms": 938747764146.2069
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-10-01",
          "window": {
            "start": {
              "local": "1999-10-02T00:13:47-04:00",
              "utc": "1999-10-02T04:13:47Z",
              "ms": 938837627498.9182
            },
            "end": {
              "local": "1999-10-02T00:13:47-04:00",
              "utc": "1999-10-02T04:13:47Z",
              "ms": 938837627498.9182
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 13:02 on Fri 1 Oct to 11:07 on Sat 2 Oct.",
          "fact": "1999-10-01T17:02:10Z → 1999-10-02T15:06:48Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 23:16 on the 30th and 00:14 on the 1st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be current at moonrise. It is not on the 30th and is on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 39180 s"
        },
        {
          "step": "ruling",
          "text": "Mahālakṣmī Vrata Samāpana, Valencia, 1999: Friday 1 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mahalakshmi-vrata-samapana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja"
          }
        ],
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Mahālakṣmī Vrata Samāpana 1999 falls on Friday 1 October. Aṣṭamī runs from 13:02 on Fri 1 Oct to 11:07 on Sat 2 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/mahalakshmi-vrata-samapana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-10-05",
      "festival": "ekadashi",
      "name": "Indirā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3928,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-10-04T08:18:36-04:00",
          "utc": "1999-10-04T12:18:36Z",
          "ms": 939039515682.7743
        },
        "end": {
          "local": "1999-10-05T07:26:09-04:00",
          "utc": "1999-10-05T11:26:09Z",
          "ms": 939122769405.0093
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-04T08:18:36-04:00",
          "utc": "1999-10-04T12:18:36Z",
          "ms": 939039515682.7743
        },
        "end": {
          "local": "1999-10-05T07:26:09-04:00",
          "utc": "1999-10-05T11:26:09Z",
          "ms": 939122769405.0093
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-10-04",
          "window": {
            "start": {
              "local": "1999-10-04T06:20:43-04:00",
              "utc": "1999-10-04T10:20:43Z",
              "ms": 939032443211.5511
            },
            "end": {
              "local": "1999-10-04T06:20:43-04:00",
              "utc": "1999-10-04T10:20:43Z",
              "ms": 939032443211.5511
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-10-05",
          "window": {
            "start": {
              "local": "1999-10-05T06:20:42-04:00",
              "utc": "1999-10-05T10:20:42Z",
              "ms": 939118841516.4347
            },
            "end": {
              "local": "1999-10-05T06:20:42-04:00",
              "utc": "1999-10-05T10:20:42Z",
              "ms": 939118841516.4347
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-10-06",
        "start": {
          "local": "1999-10-06T06:20:40-04:00",
          "utc": "1999-10-06T10:20:40Z",
          "ms": 939205240168.706
        },
        "end": {
          "local": "1999-10-06T06:54:45-04:00",
          "utc": "1999-10-06T10:54:45Z",
          "ms": 939207284762.6168
        },
        "basis": "pratah",
        "ends_with_dvadashi": true,
        "dvadashi_end": {
          "local": "1999-10-06T06:54:45-04:00",
          "utc": "1999-10-06T10:54:45Z",
          "ms": 939207284762.6168
        },
        "hari_vasara_end": {
          "local": "1999-10-05T13:18:18-04:00",
          "utc": "1999-10-05T17:18:18Z",
          "ms": 939143898244.4111
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 08:19 on Mon 4 Oct to 07:26 on Tue 5 Oct.",
          "fact": "1999-10-04T12:18:36Z → 1999-10-05T11:26:09Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:21 on the 4th and 06:21 on the 5th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 4th and is on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 3928 s"
        },
        {
          "step": "ruling",
          "text": "Indirā Ekādaśī, Valencia, 1999: Tuesday 5 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Indirā Ekādaśī 1999 falls on Tuesday 5 October. Ekādaśī runs from 08:19 on Mon 4 Oct to 07:26 on Tue 5 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-10-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-10-06",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38947,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-10-06T06:54:45-04:00",
          "utc": "1999-10-06T10:54:45Z",
          "ms": 939207284762.6168
        },
        "end": {
          "local": "1999-10-07T06:44:48-04:00",
          "utc": "1999-10-07T10:44:48Z",
          "ms": 939293088011.4509
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-06T06:54:45-04:00",
          "utc": "1999-10-06T10:54:45Z",
          "ms": 939207284762.6168
        },
        "end": {
          "local": "1999-10-07T06:44:48-04:00",
          "utc": "1999-10-07T10:44:48Z",
          "ms": 939293088011.4509
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-10-05",
          "window": {
            "start": {
              "local": "1999-10-05T18:20:06-04:00",
              "utc": "1999-10-05T22:20:06Z",
              "ms": 939162006274.7339
            },
            "end": {
              "local": "1999-10-05T19:56:11-04:00",
              "utc": "1999-10-05T23:56:11Z",
              "ms": 939167770793.9302
            }
          },
          "covered_min": 0,
          "window_min": 96,
          "qualifies": false
        },
        {
          "local_date": "1999-10-06",
          "window": {
            "start": {
              "local": "1999-10-06T18:19:32-04:00",
              "utc": "1999-10-06T22:19:32Z",
              "ms": 939248372044.924
            },
            "end": {
              "local": "1999-10-06T19:55:41-04:00",
              "utc": "1999-10-06T23:55:41Z",
              "ms": 939254140996.541
            }
          },
          "covered_min": 96,
          "window_min": 96,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 06:55 on Wed 6 Oct to 06:45 on Thu 7 Oct.",
          "fact": "1999-10-06T10:54:45Z → 1999-10-07T10:44:48Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:20–19:56 on the 5th, 18:20–19:56 on the 6th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 96 minutes on the 5th and 96 of 96 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 38947 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Wednesday 6 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Wednesday 6 October. Trayodaśī runs from 06:55 on Wed 6 Oct to 06:45 on Thu 7 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-10-06",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-10-07",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21642,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-10-07T06:44:48-04:00",
          "utc": "1999-10-07T10:44:48Z",
          "ms": 939293088011.4509
        },
        "end": {
          "local": "1999-10-08T06:57:27-04:00",
          "utc": "1999-10-08T10:57:27Z",
          "ms": 939380247368.4288
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-07T06:44:48-04:00",
          "utc": "1999-10-07T10:44:48Z",
          "ms": 939293088011.4509
        },
        "end": {
          "local": "1999-10-08T06:57:27-04:00",
          "utc": "1999-10-08T10:57:27Z",
          "ms": 939380247368.4288
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-10-06",
          "window": {
            "start": {
              "local": "1999-10-06T23:56:06-04:00",
              "utc": "1999-10-07T03:56:06Z",
              "ms": 939268565613.4882
            },
            "end": {
              "local": "1999-10-07T00:44:06-04:00",
              "utc": "1999-10-07T04:44:06Z",
              "ms": 939271445613.4882
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-10-07",
          "window": {
            "start": {
              "local": "1999-10-07T23:55:48-04:00",
              "utc": "1999-10-08T03:55:48Z",
              "ms": 939354948410.7976
            },
            "end": {
              "local": "1999-10-08T00:43:48-04:00",
              "utc": "1999-10-08T04:43:48Z",
              "ms": 939357828410.7976
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 06:45 on Thu 7 Oct to 06:57 on Fri 8 Oct.",
          "fact": "1999-10-07T10:44:48Z → 1999-10-08T10:57:27Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:56–00:44 on the 6th, 23:56–00:44 on the 7th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 6th and 48 of 48 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 21642 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Thursday 7 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Thursday 7 October. Caturdaśī runs from 06:45 on Thu 7 Oct to 06:57 on Fri 8 Oct and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-10-07",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/mahalaya-amavasya",
      "festival": "mahalaya-amavasya",
      "name": "Mahālaya Amāvāsyā",
      "everyday": "Sarvapitṛ Amāvāsyā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21394,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "1999-10-08T06:57:27-04:00",
          "utc": "1999-10-08T10:57:27Z",
          "ms": 939380247368.4288
        },
        "end": {
          "local": "1999-10-09T07:34:25-04:00",
          "utc": "1999-10-09T11:34:25Z",
          "ms": 939468864513.4558
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-08T06:57:27-04:00",
          "utc": "1999-10-08T10:57:27Z",
          "ms": 939380247368.4288
        },
        "end": {
          "local": "1999-10-09T07:34:25-04:00",
          "utc": "1999-10-09T11:34:25Z",
          "ms": 939468864513.4558
        }
      },
      "kaala": "aparahna",
      "days": [
        {
          "local_date": "1999-10-08",
          "window": {
            "start": {
              "local": "1999-10-08T13:31:18-04:00",
              "utc": "1999-10-08T17:31:18Z",
              "ms": 939403878376.8309
            },
            "end": {
              "local": "1999-10-08T15:54:52-04:00",
              "utc": "1999-10-08T19:54:52Z",
              "ms": 939412491645.8876
            }
          },
          "covered_min": 144,
          "window_min": 144,
          "qualifies": true
        },
        {
          "local_date": "1999-10-09",
          "window": {
            "start": {
              "local": "1999-10-09T13:30:59-04:00",
              "utc": "1999-10-09T17:30:59Z",
              "ms": 939490258569.5485
            },
            "end": {
              "local": "1999-10-09T15:54:25-04:00",
              "utc": "1999-10-09T19:54:25Z",
              "ms": 939498865311.272
            }
          },
          "covered_min": 0,
          "window_min": 143,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 06:57 on Fri 8 Oct to 07:34 on Sat 9 Oct.",
          "fact": "1999-10-08T10:57:27Z → 1999-10-09T11:34:25Z"
        },
        {
          "step": "kaala",
          "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:31–15:55 on the 8th, 13:31–15:54 on the 9th.",
          "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during aparāhṇa. It covers 144 of 144 minutes on the 8th and 0 of 143 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one afternoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 21394 s"
        },
        {
          "step": "ruling",
          "text": "Mahālaya Amāvāsyā, Valencia, 1999: Friday 8 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mahalaya-amavasya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 30 Mahalaya amavasya (aparahnavyapini)"
          }
        ],
        "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.",
        "kaala": "aparahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Mahālaya Amāvāsyā 1999 falls on Friday 8 October. Amāvasyā runs from 06:57 on Fri 8 Oct to 07:34 on Sat 9 Oct and covers all of aparāhṇa that afternoon.",
      "cite": "https://ahargana.org/valencia/festivals/1999/mahalaya-amavasya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/navaratra-arambha",
      "festival": "navaratra-arambha",
      "name": "Navarātrārambha",
      "everyday": "Navratri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11855,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-10-09T07:34:25-04:00",
          "utc": "1999-10-09T11:34:25Z",
          "ms": 939468864513.4558
        },
        "end": {
          "local": "1999-10-10T08:37:24-04:00",
          "utc": "1999-10-10T12:37:24Z",
          "ms": 939559043734.6267
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-09T07:34:25-04:00",
          "utc": "1999-10-09T11:34:25Z",
          "ms": 939468864513.4558
        },
        "end": {
          "local": "1999-10-10T08:37:24-04:00",
          "utc": "1999-10-10T12:37:24Z",
          "ms": 939559043734.6267
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-10-09",
          "window": {
            "start": {
              "local": "1999-10-09T11:55:15-04:00",
              "utc": "1999-10-09T15:55:15Z",
              "ms": 939484515198.6868
            },
            "end": {
              "local": "1999-10-09T12:43:15-04:00",
              "utc": "1999-10-09T16:43:15Z",
              "ms": 939487395198.6868
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-10-10",
          "window": {
            "start": {
              "local": "1999-10-10T11:54:59-04:00",
              "utc": "1999-10-10T15:54:59Z",
              "ms": 939570899101.9912
            },
            "end": {
              "local": "1999-10-10T12:42:59-04:00",
              "utc": "1999-10-10T16:42:59Z",
              "ms": 939573779101.9912
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 07:34 on Sat 9 Oct to 08:37 on Sun 10 Oct.",
          "fact": "1999-10-09T11:34:25Z → 1999-10-10T12:37:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 9th, 11:55–12:43 on the 10th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 11855 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha, Valencia, 1999: Saturday 9 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "navaratra-arambha",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Navaratrarambha (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Navarātrārambha (Navratri) 1999 falls on Saturday 9 October. Pratipadā runs from 07:34 on Sat 9 Oct to 08:37 on Sun 10 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/navaratra-arambha",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vinayaka-chaturthi?on=1999-10-13",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-13",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 532,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-10-12T12:03:20-04:00",
          "utc": "1999-10-12T16:03:20Z",
          "ms": 939744200281.941
        },
        "end": {
          "local": "1999-10-13T14:21:28-04:00",
          "utc": "1999-10-13T18:21:28Z",
          "ms": 939838888335.9285
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-12T12:03:20-04:00",
          "utc": "1999-10-12T16:03:20Z",
          "ms": 939744200281.941
        },
        "end": {
          "local": "1999-10-13T14:21:28-04:00",
          "utc": "1999-10-13T18:21:28Z",
          "ms": 939838888335.9285
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-10-12",
          "window": {
            "start": {
              "local": "1999-10-12T11:54:28-04:00",
              "utc": "1999-10-12T15:54:28Z",
              "ms": 939743668312.8811
            },
            "end": {
              "local": "1999-10-12T12:42:28-04:00",
              "utc": "1999-10-12T16:42:28Z",
              "ms": 939746548312.8811
            }
          },
          "covered_min": 39,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-10-13",
          "window": {
            "start": {
              "local": "1999-10-13T11:54:14-04:00",
              "utc": "1999-10-13T15:54:14Z",
              "ms": 939830053652.4875
            },
            "end": {
              "local": "1999-10-13T12:42:14-04:00",
              "utc": "1999-10-13T16:42:14Z",
              "ms": 939832933652.4875
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 12:03 on Tue 12 Oct to 14:21 on Wed 13 Oct.",
          "fact": "1999-10-12T16:03:20Z → 1999-10-13T18:21:28Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 12th, 11:54–12:42 on the 13th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 39 of 48 minutes on the 12th and 48 of 48 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 532 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Valencia, 1999: Wednesday 13 October.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-13",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-13",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Vināyaka Caturthī 1999 falls on Wednesday 13 October. Caturthī runs from 12:03 on Tue 12 Oct to 14:21 on Wed 13 Oct and covers all of madhyāhna that midday. It also reaches the previous midday for 39 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vinayaka-chaturthi?on=1999-10-13",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/durga-saptami",
      "festival": "durga-saptami",
      "name": "Durgā Saptamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30314,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-10-15T19:30:13-04:00",
          "utc": "1999-10-15T23:30:13Z",
          "ms": 940030212658.481
        },
        "end": {
          "local": "1999-10-16T21:55:38-04:00",
          "utc": "1999-10-17T01:55:38Z",
          "ms": 940125337643.5698
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-15T19:30:13-04:00",
          "utc": "1999-10-15T23:30:13Z",
          "ms": 940030212658.481
        },
        "end": {
          "local": "1999-10-16T21:55:38-04:00",
          "utc": "1999-10-17T01:55:38Z",
          "ms": 940125337643.5698
        }
      },
      "kaala": "udaya-1",
      "days": [
        {
          "local_date": "1999-10-16",
          "window": {
            "start": {
              "local": "1999-10-16T06:20:49-04:00",
              "utc": "1999-10-16T10:20:49Z",
              "ms": 940069248665.2969
            },
            "end": {
              "local": "1999-10-16T07:08:23-04:00",
              "utc": "1999-10-16T11:08:23Z",
              "ms": 940072102550.3074
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-10-17",
          "window": {
            "start": {
              "local": "1999-10-17T06:20:52-04:00",
              "utc": "1999-10-17T10:20:52Z",
              "ms": 940155651991.3695
            },
            "end": {
              "local": "1999-10-17T07:08:24-04:00",
              "utc": "1999-10-17T11:08:24Z",
              "ms": 940158503763.8632
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 19:30 on Fri 15 Oct to 21:56 on Sat 16 Oct.",
          "fact": "1999-10-15T23:30:13Z → 1999-10-17T01:55:38Z"
        },
        {
          "step": "kaala",
          "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:21–07:08 on the 16th, 06:21–07:08 on the 17th.",
          "fact": "udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must hold through the first muhūrta after sunrise. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one morning qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 30314 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Saptamī, Valencia, 1999: Saturday 16 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "durga-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Durga saptami (paraviddha) — covering one muhurta from sunrise"
          }
        ],
        "kaala": "udaya-1",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Durgā Saptamī 1999 falls on Saturday 16 October. Saptamī runs from 19:30 on Fri 15 Oct to 21:56 on Sat 16 Oct and covers all of the first muhūrta after sunrise that morning.",
      "cite": "https://ahargana.org/valencia/festivals/1999/durga-saptami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/mahashtami",
      "festival": "mahashtami",
      "name": "Mahāṣṭamī",
      "everyday": "Durga Ashtami",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33245,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-10-16T21:55:38-04:00",
          "utc": "1999-10-17T01:55:38Z",
          "ms": 940125337643.5698
        },
        "end": {
          "local": "1999-10-17T23:55:49-04:00",
          "utc": "1999-10-18T03:55:49Z",
          "ms": 940218949433.5112
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-16T21:55:38-04:00",
          "utc": "1999-10-17T01:55:38Z",
          "ms": 940125337643.5698
        },
        "end": {
          "local": "1999-10-17T23:55:49-04:00",
          "utc": "1999-10-18T03:55:49Z",
          "ms": 940218949433.5112
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-10-16",
          "window": {
            "start": {
              "local": "1999-10-16T11:53:33-04:00",
              "utc": "1999-10-16T15:53:33Z",
              "ms": 940089212802.8757
            },
            "end": {
              "local": "1999-10-16T12:41:33-04:00",
              "utc": "1999-10-16T16:41:33Z",
              "ms": 940092092802.8757
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-10-17",
          "window": {
            "start": {
              "local": "1999-10-17T11:53:20-04:00",
              "utc": "1999-10-17T15:53:20Z",
              "ms": 940175600285.0721
            },
            "end": {
              "local": "1999-10-17T12:41:20-04:00",
              "utc": "1999-10-17T16:41:20Z",
              "ms": 940178480285.0721
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 21:56 on Sat 16 Oct to 23:56 on Sun 17 Oct.",
          "fact": "1999-10-17T01:55:38Z → 1999-10-18T03:55:49Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 16th, 11:53–12:41 on the 17th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 33245 s"
        },
        {
          "step": "ruling",
          "text": "Mahāṣṭamī, Valencia, 1999: Sunday 17 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mahashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 8 Mahastami (paraviddha)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Mahāṣṭamī (Durga Ashtami) 1999 falls on Sunday 17 October. Aṣṭamī runs from 21:56 on Sat 16 Oct to 23:56 on Sun 17 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/mahashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/mahanavami",
      "festival": "mahanavami",
      "name": "Mahānavamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38102,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1999-10-17T23:55:49-04:00",
          "utc": "1999-10-18T03:55:49Z",
          "ms": 940218949433.5112
        },
        "end": {
          "local": "1999-10-19T01:17:55-04:00",
          "utc": "1999-10-19T05:17:55Z",
          "ms": 940310274795.9543
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-17T23:55:49-04:00",
          "utc": "1999-10-18T03:55:49Z",
          "ms": 940218949433.5112
        },
        "end": {
          "local": "1999-10-19T01:17:55-04:00",
          "utc": "1999-10-19T05:17:55Z",
          "ms": 940310274795.9543
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-10-18",
          "window": {
            "start": {
              "local": "1999-10-18T11:53:08-04:00",
              "utc": "1999-10-18T15:53:08Z",
              "ms": 940261988344.3967
            },
            "end": {
              "local": "1999-10-18T12:41:08-04:00",
              "utc": "1999-10-18T16:41:08Z",
              "ms": 940264868344.3967
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-10-19",
          "window": {
            "start": {
              "local": "1999-10-19T11:52:57-04:00",
              "utc": "1999-10-19T15:52:57Z",
              "ms": 940348376997.7747
            },
            "end": {
              "local": "1999-10-19T12:40:57-04:00",
              "utc": "1999-10-19T16:40:57Z",
              "ms": 940351256997.7747
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 23:56 on Sun 17 Oct to 01:18 on Tue 19 Oct.",
          "fact": "1999-10-18T03:55:49Z → 1999-10-19T05:17:55Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 18th, 11:53–12:41 on the 19th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 38102 s"
        },
        {
          "step": "ruling",
          "text": "Mahānavamī, Valencia, 1999: Monday 18 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mahanavami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 9 Mahanavami (purvaviddha) (In Bengal it is observed as paraviddha covering one muhurta from sunrise)."
          }
        ],
        "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.",
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Mahānavamī 1999 falls on Monday 18 October. Navamī runs from 23:56 on Sun 17 Oct to 01:18 on Tue 19 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/mahanavami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vijaya-dashami",
      "festival": "vijaya-dashami",
      "name": "Vijayā Daśamī",
      "everyday": "Dussehra",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7969,
      "anga": {
        "type": "tithi",
        "index": 9,
        "key": "dashami",
        "name": "Daśamī",
        "start": {
          "local": "1999-10-19T01:17:55-04:00",
          "utc": "1999-10-19T05:17:55Z",
          "ms": 940310274795.9543
        },
        "end": {
          "local": "1999-10-20T01:52:46-04:00",
          "utc": "1999-10-20T05:52:46Z",
          "ms": 940398766478.6859
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "conjunction",
        "start": {
          "local": "1999-10-19T01:17:55-04:00",
          "utc": "1999-10-19T05:17:55Z",
          "ms": 940310274795.9543
        },
        "end": {
          "local": "1999-10-19T08:33:49-04:00",
          "utc": "1999-10-19T12:33:49Z",
          "ms": 940336428863.3788
        },
        "nakshatra": {
          "type": "nakshatra",
          "index": 21,
          "key": "shravana",
          "name": "Śravaṇa",
          "start": {
            "local": "1999-10-18T06:50:25-04:00",
            "utc": "1999-10-18T10:50:25Z",
            "ms": 940243825395.3796
          },
          "end": {
            "local": "1999-10-19T08:33:49-04:00",
            "utc": "1999-10-19T12:33:49Z",
            "ms": 940336428863.3788
          }
        }
      },
      "kaala": "daytime",
      "days": [
        {
          "local_date": "1999-10-18",
          "window": {
            "start": {
              "local": "1999-10-18T06:20:56-04:00",
              "utc": "1999-10-18T10:20:56Z",
              "ms": 940242055818.7307
            },
            "end": {
              "local": "1999-10-18T18:13:21-04:00",
              "utc": "1999-10-18T22:13:21Z",
              "ms": 940284800870.0626
            }
          },
          "covered_min": 0,
          "window_min": 712,
          "qualifies": false
        },
        {
          "local_date": "1999-10-19",
          "window": {
            "start": {
              "local": "1999-10-19T06:21:00-04:00",
              "utc": "1999-10-19T10:21:00Z",
              "ms": 940328460160.3733
            },
            "end": {
              "local": "1999-10-19T18:12:54-04:00",
              "utc": "1999-10-19T22:12:54Z",
              "ms": 940371173835.1761
            }
          },
          "covered_min": 133,
          "window_min": 712,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Daśamī runs from 01:18 on Tue 19 Oct to 01:53 on Wed 20 Oct, and Śravaṇa from 06:50 on Mon 18 Oct to 08:34 on Tue 19 Oct. They are together from 01:18 on Tue 19 Oct to 08:34 on Tue 19 Oct.",
          "fact": "1999-10-19T05:17:55Z → 1999-10-19T12:33:49Z"
        },
        {
          "step": "kaala",
          "text": "The day time is sunrise to sunset: 06:21–18:13 on the 18th, 06:21–18:13 on the 19th.",
          "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 712 minutes on the 18th and 133 of 712 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one day qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7969 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Daśamī, Valencia, 1999: Tuesday 19 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vijaya-dashami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 10 Vijaya dasami (In Bengal it is observed as paraviddha, covering one muhurta from sunrise. In other places, if it touches Sravana naksatra in the day time it is observed on that day), Sarasvati visarjana (to be observed in naksatra Sravana), Dasahara."
          }
        ],
        "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.",
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day",
        "conjunction": {
          "nakshatra": "Śravaṇa",
          "kaala": "daytime"
        }
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vijayā Daśamī (Dussehra) 1999 falls on Tuesday 19 October. Daśamī runs from 01:18 on Tue 19 Oct to 01:53 on Wed 20 Oct and is with Śravaṇa in the day time that day, for 133 minutes.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vijaya-dashami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-10-20",
      "festival": "ekadashi",
      "name": "Pāśāṅkuśā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16099,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-10-20T01:52:46-04:00",
          "utc": "1999-10-20T05:52:46Z",
          "ms": 940398766478.6859
        },
        "end": {
          "local": "1999-10-21T01:36:09-04:00",
          "utc": "1999-10-21T05:36:09Z",
          "ms": 940484168784.1503
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-20T01:52:46-04:00",
          "utc": "1999-10-20T05:52:46Z",
          "ms": 940398766478.6859
        },
        "end": {
          "local": "1999-10-21T01:36:09-04:00",
          "utc": "1999-10-21T05:36:09Z",
          "ms": 940484168784.1503
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-10-20",
          "window": {
            "start": {
              "local": "1999-10-20T06:21:05-04:00",
              "utc": "1999-10-20T10:21:05Z",
              "ms": 940414865029.5011
            },
            "end": {
              "local": "1999-10-20T06:21:05-04:00",
              "utc": "1999-10-20T10:21:05Z",
              "ms": 940414865029.5011
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-10-21",
          "window": {
            "start": {
              "local": "1999-10-21T06:21:10-04:00",
              "utc": "1999-10-21T10:21:10Z",
              "ms": 940501270439.656
            },
            "end": {
              "local": "1999-10-21T06:21:10-04:00",
              "utc": "1999-10-21T10:21:10Z",
              "ms": 940501270439.656
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-10-21",
        "start": {
          "local": "1999-10-21T07:19:16-04:00",
          "utc": "1999-10-21T11:19:16Z",
          "ms": 940504756314.726
        },
        "end": {
          "local": "1999-10-21T08:43:21-04:00",
          "utc": "1999-10-21T12:43:21Z",
          "ms": 940509800726.1732
        },
        "basis": "hari-vasara",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-10-22T00:28:39-04:00",
          "utc": "1999-10-22T04:28:39Z",
          "ms": 940566518906.453
        },
        "hari_vasara_end": {
          "local": "1999-10-21T07:19:16-04:00",
          "utc": "1999-10-21T11:19:16Z",
          "ms": 940504756314.726
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 01:53 on Wed 20 Oct to 01:36 on Thu 21 Oct.",
          "fact": "1999-10-20T05:52:46Z → 1999-10-21T05:36:09Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:21 on the 20th and 06:21 on the 21st.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 20th and is not on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 16099 s"
        },
        {
          "step": "ruling",
          "text": "Pāśāṅkuśā Ekādaśī, Valencia, 1999: Wednesday 20 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Pāśāṅkuśā Ekādaśī 1999 falls on Wednesday 20 October. Ekādaśī runs from 01:53 on Wed 20 Oct to 01:36 on Thu 21 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-10-20",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-10-22",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9966,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-10-22T00:28:39-04:00",
          "utc": "1999-10-22T04:28:39Z",
          "ms": 940566518906.453
        },
        "end": {
          "local": "1999-10-22T22:35:02-04:00",
          "utc": "1999-10-23T02:35:02Z",
          "ms": 940646101542.4484
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-22T00:28:39-04:00",
          "utc": "1999-10-22T04:28:39Z",
          "ms": 940566518906.453
        },
        "end": {
          "local": "1999-10-22T22:35:02-04:00",
          "utc": "1999-10-23T02:35:02Z",
          "ms": 940646101542.4484
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-10-21",
          "window": {
            "start": {
              "local": "1999-10-21T18:12:02-04:00",
              "utc": "1999-10-21T22:12:02Z",
              "ms": 940543921872.2421
            },
            "end": {
              "local": "1999-10-21T19:49:16-04:00",
              "utc": "1999-10-21T23:49:16Z",
              "ms": 940549755809.9233
            }
          },
          "covered_min": 0,
          "window_min": 97,
          "qualifies": false
        },
        {
          "local_date": "1999-10-22",
          "window": {
            "start": {
              "local": "1999-10-22T18:11:37-04:00",
              "utc": "1999-10-22T22:11:37Z",
              "ms": 940630296988.0977
            },
            "end": {
              "local": "1999-10-22T19:48:55-04:00",
              "utc": "1999-10-22T23:48:55Z",
              "ms": 940636135114.9717
            }
          },
          "covered_min": 97,
          "window_min": 97,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 00:29 on Fri 22 Oct to 22:35 on Fri 22 Oct.",
          "fact": "1999-10-22T04:28:39Z → 1999-10-23T02:35:02Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:12–19:49 on the 21st, 18:12–19:49 on the 22nd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 97 minutes on the 21st and 97 of 97 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 9966 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Friday 22 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Friday 22 October. Trayodaśī runs from 00:29 on Fri 22 Oct to 22:35 on Fri 22 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-10-22",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/karaka-chaturthi",
      "festival": "karaka-chaturthi",
      "name": "Karaka Caturthī",
      "everyday": "Karwa Chauth",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23920,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-10-27T06:55:16-04:00",
          "utc": "1999-10-27T10:55:16Z",
          "ms": 941021715964.3398
        },
        "end": {
          "local": "1999-10-28T03:45:35-04:00",
          "utc": "1999-10-28T07:45:35Z",
          "ms": 941096734535.0026
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-27T06:55:16-04:00",
          "utc": "1999-10-27T10:55:16Z",
          "ms": 941021715964.3398
        },
        "end": {
          "local": "1999-10-28T03:45:35-04:00",
          "utc": "1999-10-28T07:45:35Z",
          "ms": 941096734535.0026
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-10-26",
          "window": {
            "start": {
              "local": "1999-10-26T20:09:26-04:00",
              "utc": "1999-10-27T00:09:26Z",
              "ms": 940982965827.6704
            },
            "end": {
              "local": "1999-10-26T20:09:26-04:00",
              "utc": "1999-10-27T00:09:26Z",
              "ms": 940982965827.6704
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-10-27",
          "window": {
            "start": {
              "local": "1999-10-27T21:06:55-04:00",
              "utc": "1999-10-28T01:06:55Z",
              "ms": 941072814609.8473
            },
            "end": {
              "local": "1999-10-27T21:06:55-04:00",
              "utc": "1999-10-28T01:06:55Z",
              "ms": 941072814609.8473
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:55 on Wed 27 Oct to 03:46 on Thu 28 Oct.",
          "fact": "1999-10-27T10:55:16Z → 1999-10-28T07:45:35Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:09 on the 26th and 21:07 on the 27th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 26th and is on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 23920 s"
        },
        {
          "step": "ruling",
          "text": "Karaka Caturthī, Valencia, 1999: Wednesday 27 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "karaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 4 Karaka caturthi (current at moon-rise, if occurs on two successive days, it is to be observed on the first day)"
          }
        ],
        "kaala": "moonrise",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Karaka Caturthī (Karwa Chauth) 1999 falls on Wednesday 27 October. Caturthī runs from 06:55 on Wed 27 Oct to 03:46 on Thu 28 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/karaka-chaturthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-10-27",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23920,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-10-27T06:55:16-04:00",
          "utc": "1999-10-27T10:55:16Z",
          "ms": 941021715964.3398
        },
        "end": {
          "local": "1999-10-28T03:45:35-04:00",
          "utc": "1999-10-28T07:45:35Z",
          "ms": 941096734535.0026
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-27T06:55:16-04:00",
          "utc": "1999-10-27T10:55:16Z",
          "ms": 941021715964.3398
        },
        "end": {
          "local": "1999-10-28T03:45:35-04:00",
          "utc": "1999-10-28T07:45:35Z",
          "ms": 941096734535.0026
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-10-26",
          "window": {
            "start": {
              "local": "1999-10-26T20:09:26-04:00",
              "utc": "1999-10-27T00:09:26Z",
              "ms": 940982965827.6704
            },
            "end": {
              "local": "1999-10-26T20:09:26-04:00",
              "utc": "1999-10-27T00:09:26Z",
              "ms": 940982965827.6704
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-10-27",
          "window": {
            "start": {
              "local": "1999-10-27T21:06:55-04:00",
              "utc": "1999-10-28T01:06:55Z",
              "ms": 941072814609.8473
            },
            "end": {
              "local": "1999-10-27T21:06:55-04:00",
              "utc": "1999-10-28T01:06:55Z",
              "ms": 941072814609.8473
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:55 on Wed 27 Oct to 03:46 on Thu 28 Oct.",
          "fact": "1999-10-27T10:55:16Z → 1999-10-28T07:45:35Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:09 on the 26th and 21:07 on the 27th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 26th and is on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 23920 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Wednesday 27 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Wednesday 27 October. Caturthī runs from 06:55 on Wed 27 Oct to 03:46 on Thu 28 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-10-27",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ahoyi-ashtami",
      "festival": "ahoyi-ashtami",
      "name": "Ahoyī Aṣṭamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-10-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11921,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-10-30T20:45:57-04:00",
          "utc": "1999-10-31T00:45:57Z",
          "ms": 941330756631.3022
        },
        "end": {
          "local": "1999-10-31T19:29:38-04:00",
          "utc": "1999-10-31T23:29:38Z",
          "ms": 941412578025.0114
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-10-30T20:45:57-04:00",
          "utc": "1999-10-31T00:45:57Z",
          "ms": 941330756631.3022
        },
        "end": {
          "local": "1999-10-31T19:29:38-04:00",
          "utc": "1999-10-31T23:29:38Z",
          "ms": 941412578025.0114
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-10-30",
          "window": {
            "start": {
              "local": "1999-10-31T00:04:38-04:00",
              "utc": "1999-10-31T04:04:38Z",
              "ms": 941342677733.7574
            },
            "end": {
              "local": "1999-10-31T00:04:38-04:00",
              "utc": "1999-10-31T04:04:38Z",
              "ms": 941342677733.7574
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-10-31",
          "window": {
            "start": {
              "local": "1999-11-01T01:01:09-04:00",
              "utc": "1999-11-01T05:01:09Z",
              "ms": 941432468758.8606
            },
            "end": {
              "local": "1999-11-01T01:01:09-04:00",
              "utc": "1999-11-01T05:01:09Z",
              "ms": 941432468758.8606
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 20:46 on Sat 30 Oct to 19:30 on Sun 31 Oct.",
          "fact": "1999-10-31T00:45:57Z → 1999-10-31T23:29:38Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 00:05 on the 30th and 01:01 on the 31st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be current at moonrise. It is on the 30th and is not on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 11921 s"
        },
        {
          "step": "ruling",
          "text": "Ahoyī Aṣṭamī, Valencia, 1999: Saturday 30 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ahoyi-ashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day."
          }
        ],
        "kaala": "moonrise",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-10-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Ahoyī Aṣṭamī 1999 falls on Saturday 30 October. Aṣṭamī runs from 20:46 on Sat 30 Oct to 19:30 on Sun 31 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ahoyi-ashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-11-03",
      "festival": "ekadashi",
      "name": "Ramā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 41554,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-11-02T18:34:29-04:00",
          "utc": "1999-11-02T22:34:29Z",
          "ms": 941582069113.5674
        },
        "end": {
          "local": "1999-11-03T18:50:57-04:00",
          "utc": "1999-11-03T22:50:57Z",
          "ms": 941669457030.5865
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-02T18:34:29-04:00",
          "utc": "1999-11-02T22:34:29Z",
          "ms": 941582069113.5674
        },
        "end": {
          "local": "1999-11-03T18:50:57-04:00",
          "utc": "1999-11-03T22:50:57Z",
          "ms": 941669457030.5865
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-11-03",
          "window": {
            "start": {
              "local": "1999-11-03T06:23:16-04:00",
              "utc": "1999-11-03T10:23:16Z",
              "ms": 941624596306.0942
            },
            "end": {
              "local": "1999-11-03T06:23:16-04:00",
              "utc": "1999-11-03T10:23:16Z",
              "ms": 941624596306.0942
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-11-04",
          "window": {
            "start": {
              "local": "1999-11-04T06:23:31-04:00",
              "utc": "1999-11-04T10:23:31Z",
              "ms": 941711010617.3596
            },
            "end": {
              "local": "1999-11-04T06:23:31-04:00",
              "utc": "1999-11-04T10:23:31Z",
              "ms": 941711010617.3596
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-11-04",
        "start": {
          "local": "1999-11-04T06:23:31-04:00",
          "utc": "1999-11-04T10:23:31Z",
          "ms": 941711010617.3596
        },
        "end": {
          "local": "1999-11-04T08:44:19-04:00",
          "utc": "1999-11-04T12:44:19Z",
          "ms": 941719458615.7511
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-11-04T19:33:00-04:00",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        },
        "hari_vasara_end": {
          "local": "1999-11-04T01:01:28-04:00",
          "utc": "1999-11-04T05:01:28Z",
          "ms": 941691687680.7445
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 18:34 on Tue 2 Nov to 18:51 on Wed 3 Nov.",
          "fact": "1999-11-02T22:34:29Z → 1999-11-03T22:50:57Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:23 on the 3rd and 06:24 on the 4th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 3rd and is not on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 41554 s"
        },
        {
          "step": "ruling",
          "text": "Ramā Ekādaśī, Valencia, 1999: Wednesday 3 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Ramā Ekādaśī 1999 falls on Wednesday 3 November. Ekādaśī runs from 18:34 on Tue 2 Nov to 18:51 on Wed 3 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-11-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/govatsa-dvadashi",
      "festival": "govatsa-dvadashi",
      "name": "Govatsa Dvādaśī",
      "everyday": "Vasu Baras",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 761,
      "anga": {
        "type": "tithi",
        "index": 26,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-11-03T18:50:57-04:00",
          "utc": "1999-11-03T22:50:57Z",
          "ms": 941669457030.5865
        },
        "end": {
          "local": "1999-11-04T19:33:00-04:00",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-03T18:50:57-04:00",
          "utc": "1999-11-03T22:50:57Z",
          "ms": 941669457030.5865
        },
        "end": {
          "local": "1999-11-04T19:33:00-04:00",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-03",
          "window": {
            "start": {
              "local": "1999-11-03T18:07:44-04:00",
              "utc": "1999-11-03T22:07:44Z",
              "ms": 941666863998.3538
            },
            "end": {
              "local": "1999-11-03T19:45:50-04:00",
              "utc": "1999-11-03T23:45:50Z",
              "ms": 941672750214.2212
            }
          },
          "covered_min": 55,
          "window_min": 98,
          "qualifies": true
        },
        {
          "local_date": "1999-11-04",
          "window": {
            "start": {
              "local": "1999-11-04T18:07:31-04:00",
              "utc": "1999-11-04T22:07:31Z",
              "ms": 941753250609.317
            },
            "end": {
              "local": "1999-11-04T19:45:41-04:00",
              "utc": "1999-11-04T23:45:41Z",
              "ms": 941759140609.3541
            }
          },
          "covered_min": 85,
          "window_min": 98,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 18:51 on Wed 3 Nov to 19:33 on Thu 4 Nov.",
          "fact": "1999-11-03T22:50:57Z → 1999-11-04T23:33:00Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:08–19:46 on the 3rd, 18:08–19:46 on the 4th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during pradoṣa. It covers 55 of 98 minutes on the 3rd and 85 of 98 on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Both evenings qualify. Pūrvaviddhā: the first is taken.",
          "fact": "priority: purvaviddha → purvaviddha · margin 761 s"
        },
        {
          "step": "ruling",
          "text": "Govatsa Dvādaśī, Valencia, 1999: Wednesday 3 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "govatsa-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day."
          }
        ],
        "kaala": "pradosha",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Govatsa Dvādaśī (Vasu Baras) 1999 falls on Wednesday 3 November. Dvādaśī runs from 18:51 on Wed 3 Nov to 19:33 on Thu 4 Nov and covers 55 of 98 minutes of pradoṣa that evening. It also reaches the next evening for 85 minutes; by the rule the first evening is taken.",
      "cite": "https://ahargana.org/valencia/festivals/1999/govatsa-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/yama-dipadana",
      "festival": "yama-dipadana",
      "name": "Yama Dīpadāna",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-05",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 761,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-11-04T19:33:00-04:00",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        },
        "end": {
          "local": "1999-11-05T20:38:18-04:00",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-04T19:33:00-04:00",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        },
        "end": {
          "local": "1999-11-05T20:38:18-04:00",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-04",
          "window": {
            "start": {
              "local": "1999-11-04T18:07:31-04:00",
              "utc": "1999-11-04T22:07:31Z",
              "ms": 941753250609.317
            },
            "end": {
              "local": "1999-11-04T19:45:41-04:00",
              "utc": "1999-11-04T23:45:41Z",
              "ms": 941759140609.3541
            }
          },
          "covered_min": 13,
          "window_min": 98,
          "qualifies": true
        },
        {
          "local_date": "1999-11-05",
          "window": {
            "start": {
              "local": "1999-11-05T18:07:18-04:00",
              "utc": "1999-11-05T22:07:18Z",
              "ms": 941839638210.1273
            },
            "end": {
              "local": "1999-11-05T19:45:32-04:00",
              "utc": "1999-11-05T23:45:32Z",
              "ms": 941845531952.8702
            }
          },
          "covered_min": 98,
          "window_min": 98,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 19:33 on Thu 4 Nov to 20:38 on Fri 5 Nov.",
          "fact": "1999-11-04T23:33:00Z → 1999-11-06T00:38:18Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:08–19:46 on the 4th, 18:07–19:46 on the 5th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 13 of 98 minutes on the 4th and 98 of 98 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 761 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dīpadāna, Valencia, 1999: Friday 5 November.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "yama-dipadana",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 13 Yama dipadana (pradosa)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-05",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-05",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Yama Dīpadāna 1999 falls on Friday 5 November. Trayodaśī runs from 19:33 on Thu 4 Nov to 20:38 on Fri 5 Nov and covers all of pradoṣa that evening. It also reaches the previous evening for 13 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/valencia/festivals/1999/yama-dipadana",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-11-05",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-05",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 761,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-11-04T19:33:00-04:00",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        },
        "end": {
          "local": "1999-11-05T20:38:18-04:00",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-04T19:33:00-04:00",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        },
        "end": {
          "local": "1999-11-05T20:38:18-04:00",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-04",
          "window": {
            "start": {
              "local": "1999-11-04T18:07:31-04:00",
              "utc": "1999-11-04T22:07:31Z",
              "ms": 941753250609.317
            },
            "end": {
              "local": "1999-11-04T19:45:41-04:00",
              "utc": "1999-11-04T23:45:41Z",
              "ms": 941759140609.3541
            }
          },
          "covered_min": 13,
          "window_min": 98,
          "qualifies": true
        },
        {
          "local_date": "1999-11-05",
          "window": {
            "start": {
              "local": "1999-11-05T18:07:18-04:00",
              "utc": "1999-11-05T22:07:18Z",
              "ms": 941839638210.1273
            },
            "end": {
              "local": "1999-11-05T19:45:32-04:00",
              "utc": "1999-11-05T23:45:32Z",
              "ms": 941845531952.8702
            }
          },
          "covered_min": 98,
          "window_min": 98,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 19:33 on Thu 4 Nov to 20:38 on Fri 5 Nov.",
          "fact": "1999-11-04T23:33:00Z → 1999-11-06T00:38:18Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:08–19:46 on the 4th, 18:07–19:46 on the 5th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 13 of 98 minutes on the 4th and 98 of 98 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 761 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Friday 5 November.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-05",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-05",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Friday 5 November. Trayodaśī runs from 19:33 on Thu 4 Nov to 20:38 on Fri 5 Nov and covers all of pradoṣa that evening. It also reaches the previous evening for 13 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-11-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-11-05",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6383,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-11-05T20:38:18-04:00",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        },
        "end": {
          "local": "1999-11-06T22:05:20-04:00",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-05T20:38:18-04:00",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        },
        "end": {
          "local": "1999-11-06T22:05:20-04:00",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-11-05",
          "window": {
            "start": {
              "local": "1999-11-05T23:51:40-04:00",
              "utc": "1999-11-06T03:51:40Z",
              "ms": 941860299745.4133
            },
            "end": {
              "local": "1999-11-06T00:39:40-04:00",
              "utc": "1999-11-06T04:39:40Z",
              "ms": 941863179745.4133
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-06",
          "window": {
            "start": {
              "local": "1999-11-06T23:51:42-04:00",
              "utc": "1999-11-07T03:51:42Z",
              "ms": 941946702218.5481
            },
            "end": {
              "local": "1999-11-07T00:39:42-04:00",
              "utc": "1999-11-07T04:39:42Z",
              "ms": 941949582218.5481
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 20:38 on Fri 5 Nov to 22:05 on Sat 6 Nov.",
          "fact": "1999-11-06T00:38:18Z → 1999-11-07T02:05:20Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:52–00:40 on the 5th, 23:52–00:40 on the 6th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 6383 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Friday 5 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Friday 5 November. Caturdaśī runs from 20:38 on Fri 5 Nov to 22:05 on Sat 6 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-11-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/naraka-chaturdashi",
      "festival": "naraka-chaturdashi",
      "name": "Naraka Caturdaśī",
      "everyday": "Choti Diwali",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24041,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-11-05T20:38:18-04:00",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        },
        "end": {
          "local": "1999-11-06T22:05:20-04:00",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-05T20:38:18-04:00",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        },
        "end": {
          "local": "1999-11-06T22:05:20-04:00",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "1999-11-06",
          "window": {
            "start": {
              "local": "1999-11-06T04:45:48-04:00",
              "utc": "1999-11-06T08:45:48Z",
              "ms": 941877947537.9563
            },
            "end": {
              "local": "1999-11-06T06:24:01-04:00",
              "utc": "1999-11-06T10:24:01Z",
              "ms": 941883841280.6992
            }
          },
          "covered_min": 98,
          "window_min": 98,
          "qualifies": true
        },
        {
          "local_date": "1999-11-07",
          "window": {
            "start": {
              "local": "1999-11-07T04:46:00-04:00",
              "utc": "1999-11-07T08:46:00Z",
              "ms": 941964360185.0363
            },
            "end": {
              "local": "1999-11-07T06:24:18-04:00",
              "utc": "1999-11-07T10:24:18Z",
              "ms": 941970257627.3955
            }
          },
          "covered_min": 0,
          "window_min": 98,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 20:38 on Fri 5 Nov to 22:05 on Sat 6 Nov.",
          "fact": "1999-11-06T00:38:18Z → 1999-11-07T02:05:20Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:46–06:24 on the 6th, 04:46–06:24 on the 7th.",
          "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during aruṇodaya. It covers 98 of 98 minutes on the 6th and 0 of 98 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one dawn qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 24041 s"
        },
        {
          "step": "ruling",
          "text": "Naraka Caturdaśī, Valencia, 1999: Saturday 6 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "naraka-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)"
          }
        ],
        "kaala": "arunodaya",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Naraka Caturdaśī (Choti Diwali) 1999 falls on Saturday 6 November. Caturdaśī runs from 20:38 on Fri 5 Nov to 22:05 on Sat 6 Nov and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/valencia/festivals/1999/naraka-chaturdashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/kali-puja",
      "festival": "kali-puja",
      "name": "Kālī Pūjā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-06",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin",
        "tie-break-unstated"
      ],
      "boundary_margin_s": 76,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "1999-11-06T22:05:20-04:00",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        },
        "end": {
          "local": "1999-11-07T23:53:01-04:00",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-06T22:05:20-04:00",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        },
        "end": {
          "local": "1999-11-07T23:53:01-04:00",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-11-06",
          "window": {
            "start": {
              "local": "1999-11-06T23:51:42-04:00",
              "utc": "1999-11-07T03:51:42Z",
              "ms": 941946702218.5481
            },
            "end": {
              "local": "1999-11-07T00:39:42-04:00",
              "utc": "1999-11-07T04:39:42Z",
              "ms": 941949582218.5481
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-07",
          "window": {
            "start": {
              "local": "1999-11-07T23:51:46-04:00",
              "utc": "1999-11-08T03:51:46Z",
              "ms": 942033105530.686
            },
            "end": {
              "local": "1999-11-08T00:39:46-04:00",
              "utc": "1999-11-08T04:39:46Z",
              "ms": 942035985530.686
            }
          },
          "covered_min": 1,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 22:05 on Sat 6 Nov to 23:53 on Sun 7 Nov.",
          "fact": "1999-11-07T02:05:20Z → 1999-11-08T03:53:01Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:52–00:40 on the 6th, 23:52–00:40 on the 7th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 6th and 1 of 48 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Both nights qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 76 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Kālī Pūjā, Valencia, 1999: Saturday 6 November.",
          "fact": "confidence: boundary (margin, tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "kali-puja",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)"
          }
        ],
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-06",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-06",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Kālī Pūjā 1999 falls on Saturday 6 November. Amāvasyā runs from 22:05 on Sat 6 Nov to 23:53 on Sun 7 Nov and covers all of niśītha that night. It also reaches the next night for 1 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 1 min 16 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/valencia/festivals/1999/kali-puja",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/diwali-lakshmi-puja",
      "festival": "diwali-lakshmi-puja",
      "name": "Lakṣmī Pūjā",
      "everyday": "Diwali",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8395,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "1999-11-06T22:05:20-04:00",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        },
        "end": {
          "local": "1999-11-07T23:53:01-04:00",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-06T22:05:20-04:00",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        },
        "end": {
          "local": "1999-11-07T23:53:01-04:00",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-06",
          "window": {
            "start": {
              "local": "1999-11-06T18:07:07-04:00",
              "utc": "1999-11-06T22:07:07Z",
              "ms": 941926026809.7007
            },
            "end": {
              "local": "1999-11-06T19:45:24-04:00",
              "utc": "1999-11-06T23:45:24Z",
              "ms": 941931924252.0599
            }
          },
          "covered_min": 0,
          "window_min": 98,
          "qualifies": false
        },
        {
          "local_date": "1999-11-07",
          "window": {
            "start": {
              "local": "1999-11-07T18:06:56-04:00",
              "utc": "1999-11-07T22:06:56Z",
              "ms": 942012416416.0465
            },
            "end": {
              "local": "1999-11-07T19:45:18-04:00",
              "utc": "1999-11-07T23:45:18Z",
              "ms": 942018317513.2837
            }
          },
          "covered_min": 98,
          "window_min": 98,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 22:05 on Sat 6 Nov to 23:53 on Sun 7 Nov.",
          "fact": "1999-11-07T02:05:20Z → 1999-11-08T03:53:01Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:45 on the 6th, 18:07–19:45 on the 7th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during pradoṣa. It covers 0 of 98 minutes on the 6th and 98 of 98 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 8395 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pūjā, Valencia, 1999: Sunday 7 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "diwali-lakshmi-puja",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)"
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Lakṣmī Pūjā (Diwali) 1999 falls on Sunday 7 November. Amāvasyā runs from 22:05 on Sat 6 Nov to 23:53 on Sun 7 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/diwali-lakshmi-puja",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/govardhana-puja",
      "festival": "govardhana-puja",
      "name": "Govardhana Pūjā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35495,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-11-07T23:53:01-04:00",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T02:00:10-04:00",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-07T23:53:01-04:00",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T02:00:10-04:00",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-08",
          "window": {
            "start": {
              "local": "1999-11-08T11:51:41-04:00",
              "utc": "1999-11-08T15:51:41Z",
              "ms": 942076300840.8414
            },
            "end": {
              "local": "1999-11-08T12:39:41-04:00",
              "utc": "1999-11-08T16:39:41Z",
              "ms": 942079180840.8414
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-09",
          "window": {
            "start": {
              "local": "1999-11-09T11:51:46-04:00",
              "utc": "1999-11-09T15:51:46Z",
              "ms": 942162705503.1116
            },
            "end": {
              "local": "1999-11-09T12:39:46-04:00",
              "utc": "1999-11-09T16:39:46Z",
              "ms": 942165585503.1116
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 23:53 on Sun 7 Nov to 02:00 on Tue 9 Nov.",
          "fact": "1999-11-08T03:53:01Z → 1999-11-09T06:00:10Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 8th, 11:52–12:40 on the 9th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 35495 s"
        },
        {
          "step": "ruling",
          "text": "Govardhana Pūjā, Valencia, 1999: Monday 8 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "govardhana-puja",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Govardhana Pūjā 1999 falls on Monday 8 November. Pratipadā runs from 23:53 on Sun 7 Nov to 02:00 on Tue 9 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/govardhana-puja",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/bali-puja",
      "festival": "bali-puja",
      "name": "Bali Pūjā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14864,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-11-07T23:53:01-04:00",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T02:00:10-04:00",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-07T23:53:01-04:00",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T02:00:10-04:00",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-07",
          "window": {
            "start": {
              "local": "1999-11-07T18:06:56-04:00",
              "utc": "1999-11-07T22:06:56Z",
              "ms": 942012416416.0465
            },
            "end": {
              "local": "1999-11-07T19:45:18-04:00",
              "utc": "1999-11-07T23:45:18Z",
              "ms": 942018317513.2837
            }
          },
          "covered_min": 0,
          "window_min": 98,
          "qualifies": false
        },
        {
          "local_date": "1999-11-08",
          "window": {
            "start": {
              "local": "1999-11-08T18:06:47-04:00",
              "utc": "1999-11-08T22:06:47Z",
              "ms": 942098807036.3572
            },
            "end": {
              "local": "1999-11-08T19:45:12-04:00",
              "utc": "1999-11-08T23:45:12Z",
              "ms": 942104711742.0613
            }
          },
          "covered_min": 98,
          "window_min": 98,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 23:53 on Sun 7 Nov to 02:00 on Tue 9 Nov.",
          "fact": "1999-11-08T03:53:01Z → 1999-11-09T06:00:10Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:45 on the 7th, 18:07–19:45 on the 8th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during pradoṣa. It covers 0 of 98 minutes on the 7th and 98 of 98 on the 8th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 14864 s"
        },
        {
          "step": "ruling",
          "text": "Bali Pūjā, Valencia, 1999: Monday 8 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "bali-puja",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Bali Pūjā 1999 falls on Monday 8 November. Pratipadā runs from 23:53 on Sun 7 Nov to 02:00 on Tue 9 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/bali-puja",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/dyuta-pratipad",
      "festival": "dyuta-pratipad",
      "name": "Dyūta Pratipad",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15882,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-11-07T23:53:01-04:00",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T02:00:10-04:00",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-07T23:53:01-04:00",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T02:00:10-04:00",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "1999-11-08",
          "window": {
            "start": {
              "local": "1999-11-08T06:24:35-04:00",
              "utc": "1999-11-08T10:24:35Z",
              "ms": 942056674645.3257
            },
            "end": {
              "local": "1999-11-08T10:18:39-04:00",
              "utc": "1999-11-08T14:18:39Z",
              "ms": 942070718775.6696
            }
          },
          "covered_min": 234,
          "window_min": 234,
          "qualifies": true
        },
        {
          "local_date": "1999-11-09",
          "window": {
            "start": {
              "local": "1999-11-09T06:24:52-04:00",
              "utc": "1999-11-09T10:24:52Z",
              "ms": 942143092329.1376
            },
            "end": {
              "local": "1999-11-09T10:18:48-04:00",
              "utc": "1999-11-09T14:18:48Z",
              "ms": 942157127778.4536
            }
          },
          "covered_min": 0,
          "window_min": 234,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 23:53 on Sun 7 Nov to 02:00 on Tue 9 Nov.",
          "fact": "1999-11-08T03:53:01Z → 1999-11-09T06:00:10Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:25–10:19 on the 8th, 06:25–10:19 on the 9th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during pūrvāhṇa. It covers 234 of 234 minutes on the 8th and 0 of 234 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one forenoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 15882 s"
        },
        {
          "step": "ruling",
          "text": "Dyūta Pratipad, Valencia, 1999: Monday 8 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "dyuta-pratipad",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)."
          }
        ],
        "kaala": "purvahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Dyūta Pratipad 1999 falls on Monday 8 November. Pratipadā runs from 23:53 on Sun 7 Nov to 02:00 on Tue 9 Nov and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/valencia/festivals/1999/dyuta-pratipad",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/yama-dvitiya",
      "festival": "yama-dvitiya",
      "name": "Yama Dvitīyā",
      "everyday": "Bhai Dooj",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26847,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1999-11-09T02:00:10-04:00",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        },
        "end": {
          "local": "1999-11-10T04:24:24-04:00",
          "utc": "1999-11-10T08:24:24Z",
          "ms": 942222263684.9908
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-09T02:00:10-04:00",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        },
        "end": {
          "local": "1999-11-10T04:24:24-04:00",
          "utc": "1999-11-10T08:24:24Z",
          "ms": 942222263684.9908
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-09",
          "window": {
            "start": {
              "local": "1999-11-09T11:51:46-04:00",
              "utc": "1999-11-09T15:51:46Z",
              "ms": 942162705503.1116
            },
            "end": {
              "local": "1999-11-09T12:39:46-04:00",
              "utc": "1999-11-09T16:39:46Z",
              "ms": 942165585503.1116
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-10",
          "window": {
            "start": {
              "local": "1999-11-10T11:51:51-04:00",
              "utc": "1999-11-10T15:51:51Z",
              "ms": 942249111008.286
            },
            "end": {
              "local": "1999-11-10T12:39:51-04:00",
              "utc": "1999-11-10T16:39:51Z",
              "ms": 942251991008.286
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 02:00 on Tue 9 Nov to 04:24 on Wed 10 Nov.",
          "fact": "1999-11-09T06:00:10Z → 1999-11-10T08:24:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 9th, 11:52–12:40 on the 10th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 26847 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dvitīyā, Valencia, 1999: Tuesday 9 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "yama-dvitiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 2 Bhratrdvitiya, Yamadvitiya (madhyahna, purvaviddha), Masyadhara (Dwat) puja (Bihar)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Yama Dvitīyā (Bhai Dooj) 1999 falls on Tuesday 9 November. Dvitīyā runs from 02:00 on Tue 9 Nov to 04:24 on Wed 10 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/yama-dvitiya",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/naga-chaturthi",
      "festival": "naga-chaturthi",
      "name": "Nāga Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7745,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-11-11T07:01:09-04:00",
          "utc": "1999-11-11T11:01:09Z",
          "ms": 942318069475.48
        },
        "end": {
          "local": "1999-11-12T09:42:59-04:00",
          "utc": "1999-11-12T13:42:59Z",
          "ms": 942414179445.1904
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-11T07:01:09-04:00",
          "utc": "1999-11-11T11:01:09Z",
          "ms": 942318069475.48
        },
        "end": {
          "local": "1999-11-12T09:42:59-04:00",
          "utc": "1999-11-12T13:42:59Z",
          "ms": 942414179445.1904
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-11",
          "window": {
            "start": {
              "local": "1999-11-11T11:51:57-04:00",
              "utc": "1999-11-11T15:51:57Z",
              "ms": 942335517355.3755
            },
            "end": {
              "local": "1999-11-11T12:39:57-04:00",
              "utc": "1999-11-11T16:39:57Z",
              "ms": 942338397355.3755
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-12",
          "window": {
            "start": {
              "local": "1999-11-12T11:52:05-04:00",
              "utc": "1999-11-12T15:52:05Z",
              "ms": 942421924542.6838
            },
            "end": {
              "local": "1999-11-12T12:40:05-04:00",
              "utc": "1999-11-12T16:40:05Z",
              "ms": 942424804542.6838
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 07:01 on Thu 11 Nov to 09:43 on Fri 12 Nov.",
          "fact": "1999-11-11T11:01:09Z → 1999-11-12T13:42:59Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 11th, 11:52–12:40 on the 12th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 7745 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Caturthī, Valencia, 1999: Thursday 11 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "naga-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Nāga Caturthī 1999 falls on Thursday 11 November. Caturthī runs from 07:01 on Thu 11 Nov to 09:43 on Fri 12 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/naga-chaturthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vinayaka-chaturthi?on=1999-11-11",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7745,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-11-11T07:01:09-04:00",
          "utc": "1999-11-11T11:01:09Z",
          "ms": 942318069475.48
        },
        "end": {
          "local": "1999-11-12T09:42:59-04:00",
          "utc": "1999-11-12T13:42:59Z",
          "ms": 942414179445.1904
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-11T07:01:09-04:00",
          "utc": "1999-11-11T11:01:09Z",
          "ms": 942318069475.48
        },
        "end": {
          "local": "1999-11-12T09:42:59-04:00",
          "utc": "1999-11-12T13:42:59Z",
          "ms": 942414179445.1904
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-11",
          "window": {
            "start": {
              "local": "1999-11-11T11:51:57-04:00",
              "utc": "1999-11-11T15:51:57Z",
              "ms": 942335517355.3755
            },
            "end": {
              "local": "1999-11-11T12:39:57-04:00",
              "utc": "1999-11-11T16:39:57Z",
              "ms": 942338397355.3755
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-12",
          "window": {
            "start": {
              "local": "1999-11-12T11:52:05-04:00",
              "utc": "1999-11-12T15:52:05Z",
              "ms": 942421924542.6838
            },
            "end": {
              "local": "1999-11-12T12:40:05-04:00",
              "utc": "1999-11-12T16:40:05Z",
              "ms": 942424804542.6838
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 07:01 on Thu 11 Nov to 09:43 on Fri 12 Nov.",
          "fact": "1999-11-11T11:01:09Z → 1999-11-12T13:42:59Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 11th, 11:52–12:40 on the 12th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7745 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Valencia, 1999: Thursday 11 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vināyaka Caturthī 1999 falls on Thursday 11 November. Caturthī runs from 07:01 on Thu 11 Nov to 09:43 on Fri 12 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vinayaka-chaturthi?on=1999-11-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/surya-shashthi",
      "festival": "surya-shashthi",
      "name": "Sūrya Ṣaṣṭhī",
      "everyday": "Chhath",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-14",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 1248,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-11-13T12:19:25-04:00",
          "utc": "1999-11-13T16:19:25Z",
          "ms": 942509964832.8601
        },
        "end": {
          "local": "1999-11-14T14:37:46-04:00",
          "utc": "1999-11-14T18:37:46Z",
          "ms": 942604665956.1405
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-13T12:19:25-04:00",
          "utc": "1999-11-13T16:19:25Z",
          "ms": 942509964832.8601
        },
        "end": {
          "local": "1999-11-14T14:37:46-04:00",
          "utc": "1999-11-14T18:37:46Z",
          "ms": 942604665956.1405
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-13",
          "window": {
            "start": {
              "local": "1999-11-13T11:52:13-04:00",
              "utc": "1999-11-13T15:52:13Z",
              "ms": 942508332567.8334
            },
            "end": {
              "local": "1999-11-13T12:40:13-04:00",
              "utc": "1999-11-13T16:40:13Z",
              "ms": 942511212567.8334
            }
          },
          "covered_min": 21,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-14",
          "window": {
            "start": {
              "local": "1999-11-14T11:52:21-04:00",
              "utc": "1999-11-14T15:52:21Z",
              "ms": 942594741427.7916
            },
            "end": {
              "local": "1999-11-14T12:40:21-04:00",
              "utc": "1999-11-14T16:40:21Z",
              "ms": 942597621427.7916
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 12:19 on Sat 13 Nov to 14:38 on Sun 14 Nov.",
          "fact": "1999-11-13T16:19:25Z → 1999-11-14T18:37:46Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 13th, 11:52–12:40 on the 14th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 21 of 48 minutes on the 13th and 48 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 1248 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī, Valencia, 1999: Sunday 14 November.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "surya-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-14",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-14",
          "confidence": "boundary"
        }
      ],
      "quote": "In Valencia, Sūrya Ṣaṣṭhī (Chhath) 1999 falls on Sunday 14 November. Ṣaṣṭhī runs from 12:19 on Sat 13 Nov to 14:38 on Sun 14 Nov and covers all of madhyāhna that midday. It also reaches the previous midday for 21 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.",
      "cite": "https://ahargana.org/valencia/festivals/1999/surya-shashthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/gopashtami",
      "festival": "gopashtami",
      "name": "Gopāṣṭamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13464,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-11-15T16:24:55-04:00",
          "utc": "1999-11-15T20:24:55Z",
          "ms": 942697495126.7529
        },
        "end": {
          "local": "1999-11-16T17:29:25-04:00",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-15T16:24:55-04:00",
          "utc": "1999-11-15T20:24:55Z",
          "ms": 942697495126.7529
        },
        "end": {
          "local": "1999-11-16T17:29:25-04:00",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-15",
          "window": {
            "start": {
              "local": "1999-11-15T11:52:31-04:00",
              "utc": "1999-11-15T15:52:31Z",
              "ms": 942681151118.9071
            },
            "end": {
              "local": "1999-11-15T12:40:31-04:00",
              "utc": "1999-11-15T16:40:31Z",
              "ms": 942684031118.9071
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-11-16",
          "window": {
            "start": {
              "local": "1999-11-16T11:52:42-04:00",
              "utc": "1999-11-16T15:52:42Z",
              "ms": 942767561636.9663
            },
            "end": {
              "local": "1999-11-16T12:40:42-04:00",
              "utc": "1999-11-16T16:40:42Z",
              "ms": 942770441636.9663
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 16:25 on Mon 15 Nov to 17:29 on Tue 16 Nov.",
          "fact": "1999-11-15T20:24:55Z → 1999-11-16T21:29:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 15th, 11:53–12:41 on the 16th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 13464 s"
        },
        {
          "step": "ruling",
          "text": "Gopāṣṭamī, Valencia, 1999: Tuesday 16 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "gopashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 8 Gopastami, Gosthastami."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Gopāṣṭamī 1999 falls on Tuesday 16 November. Aṣṭamī runs from 16:25 on Mon 15 Nov to 17:29 on Tue 16 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/gopashtami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/akshaya-navami",
      "festival": "akshaya-navami",
      "name": "Akṣaya Navamī",
      "everyday": "Amla Navami",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25753,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1999-11-16T17:29:25-04:00",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        },
        "end": {
          "local": "1999-11-17T17:43:24-04:00",
          "utc": "1999-11-17T21:43:24Z",
          "ms": 942875003819.5128
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-16T17:29:25-04:00",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        },
        "end": {
          "local": "1999-11-17T17:43:24-04:00",
          "utc": "1999-11-17T21:43:24Z",
          "ms": 942875003819.5128
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "1999-11-16",
          "window": {
            "start": {
              "local": "1999-11-16T06:27:14-04:00",
              "utc": "1999-11-16T10:27:14Z",
              "ms": 942748034133.4292
            },
            "end": {
              "local": "1999-11-16T10:20:12-04:00",
              "utc": "1999-11-16T14:20:12Z",
              "ms": 942762012469.1206
            }
          },
          "covered_min": 0,
          "window_min": 233,
          "qualifies": false
        },
        {
          "local_date": "1999-11-17",
          "window": {
            "start": {
              "local": "1999-11-17T06:27:37-04:00",
              "utc": "1999-11-17T10:27:37Z",
              "ms": 942834456853.398
            },
            "end": {
              "local": "1999-11-17T10:20:28-04:00",
              "utc": "1999-11-17T14:20:28Z",
              "ms": 942848427602.6587
            }
          },
          "covered_min": 233,
          "window_min": 233,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 17:29 on Tue 16 Nov to 17:43 on Wed 17 Nov.",
          "fact": "1999-11-16T21:29:25Z → 1999-11-17T21:43:24Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:27–10:20 on the 16th, 06:28–10:20 on the 17th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during pūrvāhṇa. It covers 0 of 233 minutes on the 16th and 233 of 233 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one forenoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 25753 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Navamī, Valencia, 1999: Wednesday 17 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "akshaya-navami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata."
          }
        ],
        "kaala": "purvahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Akṣaya Navamī (Amla Navami) 1999 falls on Wednesday 17 November. Navamī runs from 17:29 on Tue 16 Nov to 17:43 on Wed 17 Nov and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/valencia/festivals/1999/akshaya-navami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/durga-navami",
      "festival": "durga-navami",
      "name": "Durgā Navamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17324,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1999-11-16T17:29:25-04:00",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        },
        "end": {
          "local": "1999-11-17T17:43:24-04:00",
          "utc": "1999-11-17T21:43:24Z",
          "ms": 942875003819.5128
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-16T17:29:25-04:00",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        },
        "end": {
          "local": "1999-11-17T17:43:24-04:00",
          "utc": "1999-11-17T21:43:24Z",
          "ms": 942875003819.5128
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-16",
          "window": {
            "start": {
              "local": "1999-11-16T11:52:42-04:00",
              "utc": "1999-11-16T15:52:42Z",
              "ms": 942767561636.9663
            },
            "end": {
              "local": "1999-11-16T12:40:42-04:00",
              "utc": "1999-11-16T16:40:42Z",
              "ms": 942770441636.9663
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-11-17",
          "window": {
            "start": {
              "local": "1999-11-17T11:52:53-04:00",
              "utc": "1999-11-17T15:52:53Z",
              "ms": 942853972977.2891
            },
            "end": {
              "local": "1999-11-17T12:40:53-04:00",
              "utc": "1999-11-17T16:40:53Z",
              "ms": 942856852977.2891
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 17:29 on Tue 16 Nov to 17:43 on Wed 17 Nov.",
          "fact": "1999-11-16T21:29:25Z → 1999-11-17T21:43:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 16th, 11:53–12:41 on the 17th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 17324 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Navamī, Valencia, 1999: Wednesday 17 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "durga-navami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Durgā Navamī 1999 falls on Wednesday 17 November. Navamī runs from 17:29 on Tue 16 Nov to 17:43 on Wed 17 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/durga-navami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-11-19",
      "festival": "ekadashi",
      "name": "Prabodhinī Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32574,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-11-18T17:03:34-04:00",
          "utc": "1999-11-18T21:03:34Z",
          "ms": 942959013584.2727
        },
        "end": {
          "local": "1999-11-19T15:31:18-04:00",
          "utc": "1999-11-19T19:31:18Z",
          "ms": 943039878340.3079
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-18T17:03:34-04:00",
          "utc": "1999-11-18T21:03:34Z",
          "ms": 942959013584.2727
        },
        "end": {
          "local": "1999-11-19T15:31:18-04:00",
          "utc": "1999-11-19T19:31:18Z",
          "ms": 943039878340.3079
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-11-18",
          "window": {
            "start": {
              "local": "1999-11-18T06:28:00-04:00",
              "utc": "1999-11-18T10:28:00Z",
              "ms": 942920880156.4613
            },
            "end": {
              "local": "1999-11-18T06:28:00-04:00",
              "utc": "1999-11-18T10:28:00Z",
              "ms": 942920880156.4613
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-11-19",
          "window": {
            "start": {
              "local": "1999-11-19T06:28:24-04:00",
              "utc": "1999-11-19T10:28:24Z",
              "ms": 943007304030.93
            },
            "end": {
              "local": "1999-11-19T06:28:24-04:00",
              "utc": "1999-11-19T10:28:24Z",
              "ms": 943007304030.93
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-11-20",
        "start": {
          "local": "1999-11-20T06:28:48-04:00",
          "utc": "1999-11-20T10:28:48Z",
          "ms": 943093728465.1737
        },
        "end": {
          "local": "1999-11-20T08:48:18-04:00",
          "utc": "1999-11-20T12:48:18Z",
          "ms": 943102097831.5597
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-11-20T13:12:01-04:00",
          "utc": "1999-11-20T17:12:01Z",
          "ms": 943117920527.8296
        },
        "hari_vasara_end": {
          "local": "1999-11-19T20:56:29-04:00",
          "utc": "1999-11-20T00:56:29Z",
          "ms": 943059388887.1882
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 17:04 on Thu 18 Nov to 15:31 on Fri 19 Nov.",
          "fact": "1999-11-18T21:03:34Z → 1999-11-19T19:31:18Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:28 on the 18th and 06:28 on the 19th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 18th and is on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 32574 s"
        },
        {
          "step": "ruling",
          "text": "Prabodhinī Ekādaśī, Valencia, 1999: Friday 19 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Prabodhinī Ekādaśī 1999 falls on Friday 19 November. Ekādaśī runs from 17:04 on Thu 18 Nov to 15:31 on Fri 19 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-11-19",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-11-20",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17655,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-11-20T13:12:01-04:00",
          "utc": "1999-11-20T17:12:01Z",
          "ms": 943117920527.8296
        },
        "end": {
          "local": "1999-11-21T10:13:59-04:00",
          "utc": "1999-11-21T14:13:59Z",
          "ms": 943193639308.5997
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-20T13:12:01-04:00",
          "utc": "1999-11-20T17:12:01Z",
          "ms": 943117920527.8296
        },
        "end": {
          "local": "1999-11-21T10:13:59-04:00",
          "utc": "1999-11-21T14:13:59Z",
          "ms": 943193639308.5997
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-20",
          "window": {
            "start": {
              "local": "1999-11-20T18:06:15-04:00",
              "utc": "1999-11-20T22:06:15Z",
              "ms": 943135575297.1036
            },
            "end": {
              "local": "1999-11-20T19:45:19-04:00",
              "utc": "1999-11-20T23:45:19Z",
              "ms": 943141519050.5244
            }
          },
          "covered_min": 99,
          "window_min": 99,
          "qualifies": true
        },
        {
          "local_date": "1999-11-21",
          "window": {
            "start": {
              "local": "1999-11-21T18:06:19-04:00",
              "utc": "1999-11-21T22:06:19Z",
              "ms": 943221979471.3931
            },
            "end": {
              "local": "1999-11-21T19:45:26-04:00",
              "utc": "1999-11-21T23:45:26Z",
              "ms": 943227926070.863
            }
          },
          "covered_min": 0,
          "window_min": 99,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 13:12 on Sat 20 Nov to 10:14 on Sun 21 Nov.",
          "fact": "1999-11-20T17:12:01Z → 1999-11-21T14:13:59Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:06–19:45 on the 20th, 18:06–19:45 on the 21st.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 99 of 99 minutes on the 20th and 0 of 99 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 17655 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Saturday 20 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Saturday 20 November. Trayodaśī runs from 13:12 on Sat 20 Nov to 10:14 on Sun 21 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-11-20",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/kartiki-purnima",
      "festival": "kartiki-purnima",
      "name": "Kārtikī Pūrṇimā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18394,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-11-22T06:47:28-04:00",
          "utc": "1999-11-22T10:47:28Z",
          "ms": 943267647657.0056
        },
        "end": {
          "local": "1999-11-23T03:03:39-04:00",
          "utc": "1999-11-23T07:03:39Z",
          "ms": 943340619209.6326
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-22T06:47:28-04:00",
          "utc": "1999-11-22T10:47:28Z",
          "ms": 943267647657.0056
        },
        "end": {
          "local": "1999-11-23T03:03:39-04:00",
          "utc": "1999-11-23T07:03:39Z",
          "ms": 943340619209.6326
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-22",
          "window": {
            "start": {
              "local": "1999-11-22T11:54:02-04:00",
              "utc": "1999-11-22T15:54:02Z",
              "ms": 943286041834.77
            },
            "end": {
              "local": "1999-11-22T12:42:02-04:00",
              "utc": "1999-11-22T16:42:02Z",
              "ms": 943288921834.77
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-23",
          "window": {
            "start": {
              "local": "1999-11-23T11:54:18-04:00",
              "utc": "1999-11-23T15:54:18Z",
              "ms": 943372458001.3228
            },
            "end": {
              "local": "1999-11-23T12:42:18-04:00",
              "utc": "1999-11-23T16:42:18Z",
              "ms": 943375338001.3228
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 06:47 on Mon 22 Nov to 03:04 on Tue 23 Nov.",
          "fact": "1999-11-22T10:47:28Z → 1999-11-23T07:03:39Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 22nd, 11:54–12:42 on the 23rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 18394 s"
        },
        {
          "step": "ruling",
          "text": "Kārtikī Pūrṇimā, Valencia, 1999: Monday 22 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "kartiki-purnima",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kārtikī Pūrṇimā 1999 falls on Monday 22 November. Pūrṇimā runs from 06:47 on Mon 22 Nov to 03:04 on Tue 23 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/kartiki-purnima",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/rasayatra",
      "festival": "rasayatra",
      "name": "Rāsayātrā",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8484,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-11-22T06:47:28-04:00",
          "utc": "1999-11-22T10:47:28Z",
          "ms": 943267647657.0056
        },
        "end": {
          "local": "1999-11-23T03:03:39-04:00",
          "utc": "1999-11-23T07:03:39Z",
          "ms": 943340619209.6326
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-22T06:47:28-04:00",
          "utc": "1999-11-22T10:47:28Z",
          "ms": 943267647657.0056
        },
        "end": {
          "local": "1999-11-23T03:03:39-04:00",
          "utc": "1999-11-23T07:03:39Z",
          "ms": 943340619209.6326
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-11-21",
          "window": {
            "start": {
              "local": "1999-11-21T23:53:59-04:00",
              "utc": "1999-11-22T03:53:59Z",
              "ms": 943242839219.4054
            },
            "end": {
              "local": "1999-11-22T00:41:59-04:00",
              "utc": "1999-11-22T04:41:59Z",
              "ms": 943245719219.4054
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-11-22",
          "window": {
            "start": {
              "local": "1999-11-22T23:54:15-04:00",
              "utc": "1999-11-23T03:54:15Z",
              "ms": 943329254857.449
            },
            "end": {
              "local": "1999-11-23T00:42:15-04:00",
              "utc": "1999-11-23T04:42:15Z",
              "ms": 943332134857.449
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 06:47 on Mon 22 Nov to 03:04 on Tue 23 Nov.",
          "fact": "1999-11-22T10:47:28Z → 1999-11-23T07:03:39Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:54–00:42 on the 21st, 23:54–00:42 on the 22nd.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during niśītha. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 8484 s"
        },
        {
          "step": "ruling",
          "text": "Rāsayātrā, Valencia, 1999: Monday 22 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "rasayatra",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima."
          }
        ],
        "kaala": "nishita",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Rāsayātrā 1999 falls on Monday 22 November. Pūrṇimā runs from 06:47 on Mon 22 Nov to 03:04 on Tue 23 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/rasayatra",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-11-25",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-11-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17384,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-11-25T16:02:28-04:00",
          "utc": "1999-11-25T20:02:28Z",
          "ms": 943560148368.871
        },
        "end": {
          "local": "1999-11-26T13:00:29-04:00",
          "utc": "1999-11-26T17:00:29Z",
          "ms": 943635629346.655
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-11-25T16:02:28-04:00",
          "utc": "1999-11-25T20:02:28Z",
          "ms": 943560148368.871
        },
        "end": {
          "local": "1999-11-26T13:00:29-04:00",
          "utc": "1999-11-26T17:00:29Z",
          "ms": 943635629346.655
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-11-25",
          "window": {
            "start": {
              "local": "1999-11-25T20:52:12-04:00",
              "utc": "1999-11-26T00:52:12Z",
              "ms": 943577532250.5083
            },
            "end": {
              "local": "1999-11-25T20:52:12-04:00",
              "utc": "1999-11-26T00:52:12Z",
              "ms": 943577532250.5083
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-11-26",
          "window": {
            "start": {
              "local": "1999-11-26T21:54:02-04:00",
              "utc": "1999-11-27T01:54:02Z",
              "ms": 943667642399.8333
            },
            "end": {
              "local": "1999-11-26T21:54:02-04:00",
              "utc": "1999-11-27T01:54:02Z",
              "ms": 943667642399.8333
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 16:02 on Thu 25 Nov to 13:00 on Fri 26 Nov.",
          "fact": "1999-11-25T20:02:28Z → 1999-11-26T17:00:29Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:52 on the 25th and 21:54 on the 26th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 25th and is not on the 26th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 17384 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Thursday 25 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-11-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Thursday 25 November. Caturthī runs from 16:02 on Thu 25 Nov to 13:00 on Fri 26 Nov and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-11-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-12-03",
      "festival": "ekadashi",
      "name": "Utpannā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6336,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-12-02T08:19:57-04:00",
          "utc": "1999-12-02T12:19:57Z",
          "ms": 944137196775.0719
        },
        "end": {
          "local": "1999-12-03T09:42:41-04:00",
          "utc": "1999-12-03T13:42:41Z",
          "ms": 944228560957.4375
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-02T08:19:57-04:00",
          "utc": "1999-12-02T12:19:57Z",
          "ms": 944137196775.0719
        },
        "end": {
          "local": "1999-12-03T09:42:41-04:00",
          "utc": "1999-12-03T13:42:41Z",
          "ms": 944228560957.4375
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-12-02",
          "window": {
            "start": {
              "local": "1999-12-02T06:34:21-04:00",
              "utc": "1999-12-02T10:34:21Z",
              "ms": 944130860529.6733
            },
            "end": {
              "local": "1999-12-02T06:34:21-04:00",
              "utc": "1999-12-02T10:34:21Z",
              "ms": 944130860529.6733
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-12-03",
          "window": {
            "start": {
              "local": "1999-12-03T06:34:51-04:00",
              "utc": "1999-12-03T10:34:51Z",
              "ms": 944217290872.1754
            },
            "end": {
              "local": "1999-12-03T06:34:51-04:00",
              "utc": "1999-12-03T10:34:51Z",
              "ms": 944217290872.1754
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-12-04",
        "start": {
          "local": "1999-12-04T06:35:22-04:00",
          "utc": "1999-12-04T10:35:22Z",
          "ms": 944303721505.1985
        },
        "end": {
          "local": "1999-12-04T08:54:03-04:00",
          "utc": "1999-12-04T12:54:03Z",
          "ms": 944312042899.3375
        },
        "basis": "pratah",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-12-04T11:30:14-04:00",
          "utc": "1999-12-04T15:30:14Z",
          "ms": 944321413831.3835
        },
        "hari_vasara_end": {
          "local": "1999-12-03T16:09:34-04:00",
          "utc": "1999-12-03T20:09:34Z",
          "ms": 944251774175.9241
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 08:20 on Thu 2 Dec to 09:43 on Fri 3 Dec.",
          "fact": "1999-12-02T12:19:57Z → 1999-12-03T13:42:41Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:34 on the 2nd and 06:35 on the 3rd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 2nd and is on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 6336 s"
        },
        {
          "step": "ruling",
          "text": "Utpannā Ekādaśī, Valencia, 1999: Friday 3 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Utpannā Ekādaśī 1999 falls on Friday 3 December. Ekādaśī runs from 08:20 on Thu 2 Dec to 09:43 on Fri 3 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-12-03",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-12-04",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16311,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-12-04T11:30:14-04:00",
          "utc": "1999-12-04T15:30:14Z",
          "ms": 944321413831.3835
        },
        "end": {
          "local": "1999-12-05T13:37:16-04:00",
          "utc": "1999-12-05T17:37:16Z",
          "ms": 944415435655.6576
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-04T11:30:14-04:00",
          "utc": "1999-12-04T15:30:14Z",
          "ms": 944321413831.3835
        },
        "end": {
          "local": "1999-12-05T13:37:16-04:00",
          "utc": "1999-12-05T17:37:16Z",
          "ms": 944415435655.6576
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-12-04",
          "window": {
            "start": {
              "local": "1999-12-04T18:08:48-04:00",
              "utc": "1999-12-04T22:08:48Z",
              "ms": 944345328475.8934
            },
            "end": {
              "local": "1999-12-04T19:48:25-04:00",
              "utc": "1999-12-04T23:48:25Z",
              "ms": 944351304998.6968
            }
          },
          "covered_min": 100,
          "window_min": 100,
          "qualifies": true
        },
        {
          "local_date": "1999-12-05",
          "window": {
            "start": {
              "local": "1999-12-05T18:09:07-04:00",
              "utc": "1999-12-05T22:09:07Z",
              "ms": 944431746864.9913
            },
            "end": {
              "local": "1999-12-05T19:48:45-04:00",
              "utc": "1999-12-05T23:48:45Z",
              "ms": 944437725084.9075
            }
          },
          "covered_min": 0,
          "window_min": 100,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 11:30 on Sat 4 Dec to 13:37 on Sun 5 Dec.",
          "fact": "1999-12-04T15:30:14Z → 1999-12-05T17:37:16Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:09–19:48 on the 4th, 18:09–19:49 on the 5th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 100 of 100 minutes on the 4th and 0 of 100 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 16311 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Valencia, 1999: Saturday 4 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Kṛṣṇa Pradoṣa Vrata 1999 falls on Saturday 4 December. Trayodaśī runs from 11:30 on Sat 4 Dec to 13:37 on Sun 5 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-12-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/shivaratri?on=1999-12-05",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28803,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-12-05T13:37:16-04:00",
          "utc": "1999-12-05T17:37:16Z",
          "ms": 944415435655.6576
        },
        "end": {
          "local": "1999-12-06T15:59:07-04:00",
          "utc": "1999-12-06T19:59:07Z",
          "ms": 944510347415.0117
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-05T13:37:16-04:00",
          "utc": "1999-12-05T17:37:16Z",
          "ms": 944415435655.6576
        },
        "end": {
          "local": "1999-12-06T15:59:07-04:00",
          "utc": "1999-12-06T19:59:07Z",
          "ms": 944510347415.0117
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-12-05",
          "window": {
            "start": {
              "local": "1999-12-05T23:58:45-04:00",
              "utc": "1999-12-06T03:58:45Z",
              "ms": 944452725189.6768
            },
            "end": {
              "local": "1999-12-06T00:46:45-04:00",
              "utc": "1999-12-06T04:46:45Z",
              "ms": 944455605189.6768
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-12-06",
          "window": {
            "start": {
              "local": "1999-12-06T23:59:10-04:00",
              "utc": "1999-12-07T03:59:10Z",
              "ms": 944539150488.3218
            },
            "end": {
              "local": "1999-12-07T00:47:10-04:00",
              "utc": "1999-12-07T04:47:10Z",
              "ms": 944542030488.3218
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 13:37 on Sun 5 Dec to 15:59 on Mon 6 Dec.",
          "fact": "1999-12-05T17:37:16Z → 1999-12-06T19:59:07Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:59–00:47 on the 5th, 23:59–00:47 on the 6th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 28803 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Valencia, 1999: Sunday 5 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "shivaratri",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)."
          }
        ],
        "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.",
        "kaala": "nishita",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śivarātri 1999 falls on Sunday 5 December. Caturdaśī runs from 13:37 on Sun 5 Dec to 15:59 on Mon 6 Dec and covers all of niśītha that night.",
      "cite": "https://ahargana.org/valencia/festivals/1999/shivaratri?on=1999-12-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/vinayaka-chaturthi?on=1999-12-11",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26208,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-12-11T02:24:32-04:00",
          "utc": "1999-12-11T06:24:32Z",
          "ms": 944893472130.4781
        },
        "end": {
          "local": "1999-12-12T04:44:48-04:00",
          "utc": "1999-12-12T08:44:48Z",
          "ms": 944988287857.9584
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-11T02:24:32-04:00",
          "utc": "1999-12-11T06:24:32Z",
          "ms": 944893472130.4781
        },
        "end": {
          "local": "1999-12-12T04:44:48-04:00",
          "utc": "1999-12-12T08:44:48Z",
          "ms": 944988287857.9584
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-11",
          "window": {
            "start": {
              "local": "1999-12-11T12:01:08-04:00",
              "utc": "1999-12-11T16:01:08Z",
              "ms": 944928068223.2748
            },
            "end": {
              "local": "1999-12-11T12:49:08-04:00",
              "utc": "1999-12-11T16:49:08Z",
              "ms": 944930948223.2748
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-12-12",
          "window": {
            "start": {
              "local": "1999-12-12T12:01:36-04:00",
              "utc": "1999-12-12T16:01:36Z",
              "ms": 945014496152.4963
            },
            "end": {
              "local": "1999-12-12T12:49:36-04:00",
              "utc": "1999-12-12T16:49:36Z",
              "ms": 945017376152.4963
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 02:25 on Sat 11 Dec to 04:45 on Sun 12 Dec.",
          "fact": "1999-12-11T06:24:32Z → 1999-12-12T08:44:48Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:01–12:49 on the 11th, 12:02–12:50 on the 12th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 26208 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Valencia, 1999: Saturday 11 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Vināyaka Caturthī 1999 falls on Saturday 11 December. Caturthī runs from 02:25 on Sat 11 Dec to 04:45 on Sun 12 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/vinayaka-chaturthi?on=1999-12-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/naga-panchami-margashirsha",
      "festival": "naga-panchami-margashirsha",
      "name": "Nāga Pañcamī (Mārgaśīrṣa)",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19234,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-12-12T04:44:48-04:00",
          "utc": "1999-12-12T08:44:48Z",
          "ms": 944988287857.9584
        },
        "end": {
          "local": "1999-12-13T06:41:31-04:00",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-12T04:44:48-04:00",
          "utc": "1999-12-12T08:44:48Z",
          "ms": 944988287857.9584
        },
        "end": {
          "local": "1999-12-13T06:41:31-04:00",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-12",
          "window": {
            "start": {
              "local": "1999-12-12T12:01:36-04:00",
              "utc": "1999-12-12T16:01:36Z",
              "ms": 945014496152.4963
            },
            "end": {
              "local": "1999-12-12T12:49:36-04:00",
              "utc": "1999-12-12T16:49:36Z",
              "ms": 945017376152.4963
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-12-13",
          "window": {
            "start": {
              "local": "1999-12-13T12:02:04-04:00",
              "utc": "1999-12-13T16:02:04Z",
              "ms": 945100924421.4099
            },
            "end": {
              "local": "1999-12-13T12:50:04-04:00",
              "utc": "1999-12-13T16:50:04Z",
              "ms": 945103804421.4099
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 04:45 on Sun 12 Dec to 06:42 on Mon 13 Dec.",
          "fact": "1999-12-12T08:44:48Z → 1999-12-13T10:41:31Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 12th, 12:02–12:50 on the 13th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 19234 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī (Mārgaśīrṣa), Valencia, 1999: Sunday 12 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "naga-panchami-margashirsha",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 5 Naga pancami (2nd) (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Nāga Pañcamī (Mārgaśīrṣa) 1999 falls on Sunday 12 December. Pañcamī runs from 04:45 on Sun 12 Dec to 06:42 on Mon 13 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/naga-panchami-margashirsha",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/champa-shashthi",
      "festival": "champa-shashthi",
      "name": "Campā Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14253,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-12-13T06:41:31-04:00",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        },
        "end": {
          "local": "1999-12-14T08:05:00-04:00",
          "utc": "1999-12-14T12:05:00Z",
          "ms": 945173099780.6598
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-13T06:41:31-04:00",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        },
        "end": {
          "local": "1999-12-14T08:05:00-04:00",
          "utc": "1999-12-14T12:05:00Z",
          "ms": 945173099780.6598
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-13",
          "window": {
            "start": {
              "local": "1999-12-13T12:02:04-04:00",
              "utc": "1999-12-13T16:02:04Z",
              "ms": 945100924421.4099
            },
            "end": {
              "local": "1999-12-13T12:50:04-04:00",
              "utc": "1999-12-13T16:50:04Z",
              "ms": 945103804421.4099
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-12-14",
          "window": {
            "start": {
              "local": "1999-12-14T12:02:33-04:00",
              "utc": "1999-12-14T16:02:33Z",
              "ms": 945187352996.1415
            },
            "end": {
              "local": "1999-12-14T12:50:33-04:00",
              "utc": "1999-12-14T16:50:33Z",
              "ms": 945190232996.1415
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 06:42 on Mon 13 Dec to 08:05 on Tue 14 Dec.",
          "fact": "1999-12-13T10:41:31Z → 1999-12-14T12:05:00Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 13th, 12:03–12:51 on the 14th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 14253 s"
        },
        {
          "step": "ruling",
          "text": "Campā Ṣaṣṭhī, Valencia, 1999: Monday 13 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "champa-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi"
          }
        ],
        "not_evaluated": "The row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.",
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Campā Ṣaṣṭhī 1999 falls on Monday 13 December. Ṣaṣṭhī runs from 06:42 on Mon 13 Dec to 08:05 on Tue 14 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/champa-shashthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/skanda-shashthi",
      "festival": "skanda-shashthi",
      "name": "Skanda Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14253,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-12-13T06:41:31-04:00",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        },
        "end": {
          "local": "1999-12-14T08:05:00-04:00",
          "utc": "1999-12-14T12:05:00Z",
          "ms": 945173099780.6598
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-13T06:41:31-04:00",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        },
        "end": {
          "local": "1999-12-14T08:05:00-04:00",
          "utc": "1999-12-14T12:05:00Z",
          "ms": 945173099780.6598
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-13",
          "window": {
            "start": {
              "local": "1999-12-13T12:02:04-04:00",
              "utc": "1999-12-13T16:02:04Z",
              "ms": 945100924421.4099
            },
            "end": {
              "local": "1999-12-13T12:50:04-04:00",
              "utc": "1999-12-13T16:50:04Z",
              "ms": 945103804421.4099
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-12-14",
          "window": {
            "start": {
              "local": "1999-12-14T12:02:33-04:00",
              "utc": "1999-12-14T16:02:33Z",
              "ms": 945187352996.1415
            },
            "end": {
              "local": "1999-12-14T12:50:33-04:00",
              "utc": "1999-12-14T16:50:33Z",
              "ms": 945190232996.1415
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 06:42 on Mon 13 Dec to 08:05 on Tue 14 Dec.",
          "fact": "1999-12-13T10:41:31Z → 1999-12-14T12:05:00Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 13th, 12:03–12:51 on the 14th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 14253 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī, Valencia, 1999: Monday 13 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "skanda-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi"
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Skanda Ṣaṣṭhī 1999 falls on Monday 13 December. Ṣaṣṭhī runs from 06:42 on Mon 13 Dec to 08:05 on Tue 14 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/skanda-shashthi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/mitra-saptami",
      "festival": "mitra-saptami",
      "name": "Mitra Saptamī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11770,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-12-14T08:05:00-04:00",
          "utc": "1999-12-14T12:05:00Z",
          "ms": 945173099780.6598
        },
        "end": {
          "local": "1999-12-15T08:46:52-04:00",
          "utc": "1999-12-15T12:46:52Z",
          "ms": 945262011773.3474
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-14T08:05:00-04:00",
          "utc": "1999-12-14T12:05:00Z",
          "ms": 945173099780.6598
        },
        "end": {
          "local": "1999-12-15T08:46:52-04:00",
          "utc": "1999-12-15T12:46:52Z",
          "ms": 945262011773.3474
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-14",
          "window": {
            "start": {
              "local": "1999-12-14T12:02:33-04:00",
              "utc": "1999-12-14T16:02:33Z",
              "ms": 945187352996.1415
            },
            "end": {
              "local": "1999-12-14T12:50:33-04:00",
              "utc": "1999-12-14T16:50:33Z",
              "ms": 945190232996.1415
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-12-15",
          "window": {
            "start": {
              "local": "1999-12-15T12:03:02-04:00",
              "utc": "1999-12-15T16:03:02Z",
              "ms": 945273781842.7512
            },
            "end": {
              "local": "1999-12-15T12:51:02-04:00",
              "utc": "1999-12-15T16:51:02Z",
              "ms": 945276661842.7512
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 08:05 on Tue 14 Dec to 08:47 on Wed 15 Dec.",
          "fact": "1999-12-14T12:05:00Z → 1999-12-15T12:46:52Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 14th, 12:03–12:51 on the 15th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 11770 s"
        },
        {
          "step": "ruling",
          "text": "Mitra Saptamī, Valencia, 1999: Tuesday 14 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mitra-saptami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Mitra saptami (purvaviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Mitra Saptamī 1999 falls on Tuesday 14 December. Saptamī runs from 08:05 on Tue 14 Dec to 08:47 on Wed 15 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/mitra-saptami",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/ekadashi?on=1999-12-18",
      "festival": "ekadashi",
      "name": "Mokṣadā Ekādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2364,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-12-18T06:03:18-04:00",
          "utc": "1999-12-18T10:03:18Z",
          "ms": 945511397659.9443
        },
        "end": {
          "local": "1999-12-19T03:37:00-04:00",
          "utc": "1999-12-19T07:37:00Z",
          "ms": 945589019757.2195
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-18T06:03:18-04:00",
          "utc": "1999-12-18T10:03:18Z",
          "ms": 945511397659.9443
        },
        "end": {
          "local": "1999-12-19T03:37:00-04:00",
          "utc": "1999-12-19T07:37:00Z",
          "ms": 945589019757.2195
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-12-18",
          "window": {
            "start": {
              "local": "1999-12-18T06:42:42-04:00",
              "utc": "1999-12-18T10:42:42Z",
              "ms": 945513761570.1152
            },
            "end": {
              "local": "1999-12-18T06:42:42-04:00",
              "utc": "1999-12-18T10:42:42Z",
              "ms": 945513761570.1152
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-12-19",
          "window": {
            "start": {
              "local": "1999-12-19T06:43:12-04:00",
              "utc": "1999-12-19T10:43:12Z",
              "ms": 945600192359.669
            },
            "end": {
              "local": "1999-12-19T06:43:12-04:00",
              "utc": "1999-12-19T10:43:12Z",
              "ms": 945600192359.669
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "parana": {
        "local_date": "1999-12-19",
        "start": {
          "local": "1999-12-19T08:51:28-04:00",
          "utc": "1999-12-19T12:51:28Z",
          "ms": 945607888381.6937
        },
        "end": {
          "local": "1999-12-19T09:01:31-04:00",
          "utc": "1999-12-19T13:01:31Z",
          "ms": 945608491127.4688
        },
        "basis": "hari-vasara",
        "ends_with_dvadashi": false,
        "dvadashi_end": {
          "local": "1999-12-20T00:34:54-04:00",
          "utc": "1999-12-20T04:34:54Z",
          "ms": 945664494255.1166
        },
        "hari_vasara_end": {
          "local": "1999-12-19T08:51:28-04:00",
          "utc": "1999-12-19T12:51:28Z",
          "ms": 945607888381.6937
        }
      },
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:03 on Sat 18 Dec to 03:37 on Sun 19 Dec.",
          "fact": "1999-12-18T10:03:18Z → 1999-12-19T07:37:00Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:43 on the 18th and 06:43 on the 19th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 18th and is not on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 2364 s"
        },
        {
          "step": "ruling",
          "text": "Mokṣadā Ekādaśī, Valencia, 1999: Saturday 18 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Mokṣadā Ekādaśī 1999 falls on Saturday 18 December. Ekādaśī runs from 06:03 on Sat 18 Dec to 03:37 on Sun 19 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/ekadashi?on=1999-12-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/akhanda-dvadashi",
      "festival": "akhanda-dvadashi",
      "name": "Akhaṇḍa Dvādaśī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30480,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-12-19T03:37:00-04:00",
          "utc": "1999-12-19T07:37:00Z",
          "ms": 945589019757.2195
        },
        "end": {
          "local": "1999-12-20T00:34:54-04:00",
          "utc": "1999-12-20T04:34:54Z",
          "ms": 945664494255.1166
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-19T03:37:00-04:00",
          "utc": "1999-12-19T07:37:00Z",
          "ms": 945589019757.2195
        },
        "end": {
          "local": "1999-12-20T00:34:54-04:00",
          "utc": "1999-12-20T04:34:54Z",
          "ms": 945664494255.1166
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-19",
          "window": {
            "start": {
              "local": "1999-12-19T12:04:59-04:00",
              "utc": "1999-12-19T16:04:59Z",
              "ms": 945619499279.1685
            },
            "end": {
              "local": "1999-12-19T12:52:59-04:00",
              "utc": "1999-12-19T16:52:59Z",
              "ms": 945622379279.1685
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-12-20",
          "window": {
            "start": {
              "local": "1999-12-20T12:05:29-04:00",
              "utc": "1999-12-20T16:05:29Z",
              "ms": 945705928989.5166
            },
            "end": {
              "local": "1999-12-20T12:53:29-04:00",
              "utc": "1999-12-20T16:53:29Z",
              "ms": 945708808989.5166
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 03:37 on Sun 19 Dec to 00:35 on Mon 20 Dec.",
          "fact": "1999-12-19T07:37:00Z → 1999-12-20T04:34:54Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 19th, 12:05–12:53 on the 20th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 30480 s"
        },
        {
          "step": "ruling",
          "text": "Akhaṇḍa Dvādaśī, Valencia, 1999: Sunday 19 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "akhanda-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Akhaṇḍa Dvādaśī 1999 falls on Sunday 19 December. Dvādaśī runs from 03:37 on Sun 19 Dec to 00:35 on Mon 20 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/valencia/festivals/1999/akhanda-dvadashi",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/pradosha-vrata?on=1999-12-20",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4269,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-12-20T00:34:54-04:00",
          "utc": "1999-12-20T04:34:54Z",
          "ms": 945664494255.1166
        },
        "end": {
          "local": "1999-12-20T21:06:16-04:00",
          "utc": "1999-12-21T01:06:16Z",
          "ms": 945738376123.7671
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-20T00:34:54-04:00",
          "utc": "1999-12-20T04:34:54Z",
          "ms": 945664494255.1166
        },
        "end": {
          "local": "1999-12-20T21:06:16-04:00",
          "utc": "1999-12-21T01:06:16Z",
          "ms": 945738376123.7671
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-12-19",
          "window": {
            "start": {
              "local": "1999-12-19T18:14:46-04:00",
              "utc": "1999-12-19T22:14:46Z",
              "ms": 945641686198.6678
            },
            "end": {
              "local": "1999-12-19T19:54:38-04:00",
              "utc": "1999-12-19T23:54:38Z",
              "ms": 945647677755.7765
            }
          },
          "covered_min": 0,
          "window_min": 100,
          "qualifies": false
        },
        {
          "local_date": "1999-12-20",
          "window": {
            "start": {
              "local": "1999-12-20T18:15:15-04:00",
              "utc": "1999-12-20T22:15:15Z",
              "ms": 945728115102.0507
            },
            "end": {
              "local": "1999-12-20T19:55:07-04:00",
              "utc": "1999-12-20T23:55:07Z",
              "ms": 945734106833.9667
            }
          },
          "covered_min": 100,
          "window_min": 100,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 00:35 on Mon 20 Dec to 21:06 on Mon 20 Dec.",
          "fact": "1999-12-20T04:34:54Z → 1999-12-21T01:06:16Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:15–19:55 on the 19th, 18:15–19:55 on the 20th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 100 minutes on the 19th and 100 of 100 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 4269 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Valencia, 1999: Monday 20 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Śukla Pradoṣa Vrata 1999 falls on Monday 20 December. Trayodaśī runs from 00:35 on Mon 20 Dec to 21:06 on Mon 20 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/pradosha-vrata?on=1999-12-20",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/dattatreyotpatti",
      "festival": "dattatreyotpatti",
      "name": "Dattātreyotpatti",
      "everyday": "Datta Jayanti",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3258,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-12-21T17:21:26-04:00",
          "utc": "1999-12-21T21:21:26Z",
          "ms": 945811286495.2871
        },
        "end": {
          "local": "1999-12-22T13:31:18-04:00",
          "utc": "1999-12-22T17:31:18Z",
          "ms": 945883878038.1244
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-21T17:21:26-04:00",
          "utc": "1999-12-21T21:21:26Z",
          "ms": 945811286495.2871
        },
        "end": {
          "local": "1999-12-22T13:31:18-04:00",
          "utc": "1999-12-22T17:31:18Z",
          "ms": 945883878038.1244
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-12-21",
          "window": {
            "start": {
              "local": "1999-12-21T18:15:44-04:00",
              "utc": "1999-12-21T22:15:44Z",
              "ms": 945814544467.008
            },
            "end": {
              "local": "1999-12-21T19:55:36-04:00",
              "utc": "1999-12-21T23:55:36Z",
              "ms": 945820536267.8856
            }
          },
          "covered_min": 100,
          "window_min": 100,
          "qualifies": true
        },
        {
          "local_date": "1999-12-22",
          "window": {
            "start": {
              "local": "1999-12-22T18:16:14-04:00",
              "utc": "1999-12-22T22:16:14Z",
              "ms": 945900974264.993
            },
            "end": {
              "local": "1999-12-22T19:56:06-04:00",
              "utc": "1999-12-22T23:56:06Z",
              "ms": 945906966028.9829
            }
          },
          "covered_min": 0,
          "window_min": 100,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 17:21 on Tue 21 Dec to 13:31 on Wed 22 Dec.",
          "fact": "1999-12-21T21:21:26Z → 1999-12-22T17:31:18Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:16–19:56 on the 21st, 18:16–19:56 on the 22nd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during pradoṣa. It covers 100 of 100 minutes on the 21st and 0 of 100 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 3258 s"
        },
        {
          "step": "ruling",
          "text": "Dattātreyotpatti, Valencia, 1999: Tuesday 21 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "dattatreyotpatti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 15 Dattatreyotpatti (pradosa)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Dattātreyotpatti (Datta Jayanti) 1999 falls on Tuesday 21 December. Pūrṇimā runs from 17:21 on Tue 21 Dec to 13:31 on Wed 22 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/valencia/festivals/1999/dattatreyotpatti",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/valencia/festivals/1999/sankashta-chaturthi?on=1999-12-25",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "3625549",
      "year": 1999,
      "local_date": "1999-12-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11498,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-12-25T03:16:23-04:00",
          "utc": "1999-12-25T07:16:23Z",
          "ms": 946106182799.5834
        },
        "end": {
          "local": "1999-12-26T00:49:02-04:00",
          "utc": "1999-12-26T04:49:02Z",
          "ms": 946183741763.595
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "1999-12-25T03:16:23-04:00",
          "utc": "1999-12-25T07:16:23Z",
          "ms": 946106182799.5834
        },
        "end": {
          "local": "1999-12-26T00:49:02-04:00",
          "utc": "1999-12-26T04:49:02Z",
          "ms": 946183741763.595
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-12-24",
          "window": {
            "start": {
              "local": "1999-12-24T20:36:53-04:00",
              "utc": "1999-12-25T00:36:53Z",
              "ms": 946082213488.8971
            },
            "end": {
              "local": "1999-12-24T20:36:53-04:00",
              "utc": "1999-12-25T00:36:53Z",
              "ms": 946082213488.8971
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-12-25",
          "window": {
            "start": {
              "local": "1999-12-25T21:37:23-04:00",
              "utc": "1999-12-26T01:37:23Z",
              "ms": 946172243491.696
            },
            "end": {
              "local": "1999-12-25T21:37:23-04:00",
              "utc": "1999-12-26T01:37:23Z",
              "ms": 946172243491.696
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 03:16 on Sat 25 Dec to 00:49 on Sun 26 Dec.",
          "fact": "1999-12-25T07:16:23Z → 1999-12-26T04:49:02Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:37 on the 24th and 21:37 on the 25th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 24th and is on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 11498 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Valencia, 1999: Saturday 25 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "1999-12-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Valencia, Saṅkaṣṭa Caturthī 1999 falls on Saturday 25 December. Caturthī runs from 03:16 on Sat 25 Dec to 00:49 on Sun 26 Dec and is current at moonrise that day.",
      "cite": "https://ahargana.org/valencia/festivals/1999/sankashta-chaturthi?on=1999-12-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    }
  ],
  "engine": {
    "version": "0.1.0",
    "ruleset": "2026.3-draft",
    "kernel": "de440-1900-2100",
    "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
    "tzdata": "2026f"
  }
}