{
  "id": "/mashhad/festivals/1999",
  "place": {
    "id": "124665",
    "slug": "mashhad",
    "name": "Mashhad",
    "region": "Razavi Khorasan, Iran",
    "country": "IR",
    "lat": 36.29807,
    "lon": 59.60567,
    "elevation_m": 980,
    "tz": "Asia/Tehran"
  },
  "year": 1999,
  "tradition": "smarta",
  "method": "pac-rp@2026.1",
  "ruleset": "2026.3-draft",
  "rulings": [
    {
      "id": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-01-05",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17521,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-01-05T01:17:41+03:30",
          "utc": "1999-01-04T21:47:41Z",
          "ms": 915486461346.6658
        },
        "end": {
          "local": "1999-01-06T01:01:46+03:30",
          "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": "1999-01-05T01:17:41+03:30",
          "utc": "1999-01-04T21:47:41Z",
          "ms": 915486461346.6658
        },
        "end": {
          "local": "1999-01-06T01:01:46+03:30",
          "utc": "1999-01-05T21:31:46Z",
          "ms": 915571905623.5778
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-01-04",
          "window": {
            "start": {
              "local": "1999-01-04T19:07:56+03:30",
              "utc": "1999-01-04T15:37:56Z",
              "ms": 915464276232.5919
            },
            "end": {
              "local": "1999-01-04T19:07:56+03:30",
              "utc": "1999-01-04T15:37:56Z",
              "ms": 915464276232.5919
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-01-05",
          "window": {
            "start": {
              "local": "1999-01-05T20:09:45+03:30",
              "utc": "1999-01-05T16:39:45Z",
              "ms": 915554384700.4539
            },
            "end": {
              "local": "1999-01-05T20:09:45+03:30",
              "utc": "1999-01-05T16:39:45Z",
              "ms": 915554384700.4539
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 01:18 on Tue 5 Jan to 01:02 on Wed 6 Jan.",
          "fact": "1999-01-04T21:47:41Z → 1999-01-05T21:31:46Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:08 on the 4th and 20:10 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 17521 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 1999: Tuesday 5 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": "1999-01-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Tuesday 5 January. Caturthī runs from 01:18 on Tue 5 Jan to 01:02 on Wed 6 Jan and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/sankashta-chaturthi?on=1999-01-05",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/bhogi",
      "festival": "bhogi",
      "name": "Bhogi",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5859,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-02-13T03:59:46+03:30",
          "utc": "1999-02-13T00:29:46Z",
          "ms": 918865785866.7513
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-13T16:37:13+03:30",
              "utc": "1999-01-13T13:07:13Z",
              "ms": 916232832694.0973
            },
            "end": {
              "local": "1999-01-14T16:38:11+03:30",
              "utc": "1999-01-14T13:08:11Z",
              "ms": 916319291260.8037
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-14T16:38:11+03:30",
              "utc": "1999-01-14T13:08:11Z",
              "ms": 916319291260.8037
            },
            "end": {
              "local": "1999-01-15T16:39:11+03:30",
              "utc": "1999-01-15T13:09:11Z",
              "ms": 916405750508.337
            }
          },
          "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 15:01 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 16:38, and the day of the 15th ends at 16:39.",
          "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 5859 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, Mashhad, 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 Mashhad, 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 15:01 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/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-01-13",
      "festival": "ekadashi",
      "name": "Ṣaṭtilā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19595,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-01-12T12:09:53+03:30",
          "utc": "1999-01-12T08:39:53Z",
          "ms": 916130393414.2554
        },
        "end": {
          "local": "1999-01-13T14:28:34+03:30",
          "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": "1999-01-12T12:09:53+03:30",
          "utc": "1999-01-12T08:39:53Z",
          "ms": 916130393414.2554
        },
        "end": {
          "local": "1999-01-13T14:28:34+03:30",
          "utc": "1999-01-13T10:58:34Z",
          "ms": 916225113996.1014
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-01-12",
          "window": {
            "start": {
              "local": "1999-01-12T06:43:19+03:30",
              "utc": "1999-01-12T03:13:19Z",
              "ms": 916110798910.2295
            },
            "end": {
              "local": "1999-01-12T06:43:19+03:30",
              "utc": "1999-01-12T03:13:19Z",
              "ms": 916110798910.2295
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-01-13",
          "window": {
            "start": {
              "local": "1999-01-13T06:43:08+03:30",
              "utc": "1999-01-13T03:13:08Z",
              "ms": 916197187793.0326
            },
            "end": {
              "local": "1999-01-13T06:43:08+03:30",
              "utc": "1999-01-13T03:13:08Z",
              "ms": 916197187793.0326
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 12:10 on Tue 12 Jan to 14:29 on Wed 13 Jan.",
          "fact": "1999-01-12T08:39:53Z → 1999-01-13T10:58:34Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:43 on the 12th and 06:43 on the 13th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 12th and is on the 13th.",
          "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 19595 s"
        },
        {
          "step": "ruling",
          "text": "Ṣaṭtilā Ekādaśī, Mashhad, 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": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ṣaṭtilā Ekādaśī 1999 falls on Wednesday 13 January. Ekādaśī runs from 12:10 on Tue 12 Jan to 14:29 on Wed 13 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pongal",
      "festival": "pongal",
      "name": "Pongal",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5859,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-02-13T03:59:46+03:30",
          "utc": "1999-02-13T00:29:46Z",
          "ms": 918865785866.7513
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-13T16:37:13+03:30",
              "utc": "1999-01-13T13:07:13Z",
              "ms": 916232832694.0973
            },
            "end": {
              "local": "1999-01-14T16:38:11+03:30",
              "utc": "1999-01-14T13:08:11Z",
              "ms": 916319291260.8037
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-14T16:38:11+03:30",
              "utc": "1999-01-14T13:08:11Z",
              "ms": 916319291260.8037
            },
            "end": {
              "local": "1999-01-15T16:39:11+03:30",
              "utc": "1999-01-15T13:09:11Z",
              "ms": 916405750508.337
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 15:01 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 16:38, and the day of the 15th ends at 16:39.",
          "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 5859 s"
        },
        {
          "step": "ruling",
          "text": "Pongal, Mashhad, 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 Mashhad, Pongal 1999 falls on Thursday 14 January. The Sun enters Makara at 15:01 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/mashhad/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": "/mashhad/festivals/1999/makara-sankranti",
      "festival": "makara-sankranti",
      "name": "Makara Saṅkrānti",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32368,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-02-13T03:59:46+03:30",
          "utc": "1999-02-13T00:29:46Z",
          "ms": 918865785866.7513
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        }
      },
      "kaala": "civil-day",
      "days": [
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-14T00:00:00+03:30",
              "utc": "1999-01-13T20:30:00Z",
              "ms": 916259400000
            },
            "end": {
              "local": "1999-01-15T00:00:00+03:30",
              "utc": "1999-01-14T20:30:00Z",
              "ms": 916345800000
            }
          },
          "covered_min": 1,
          "window_min": 1440,
          "qualifies": true
        },
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-15T00:00:00+03:30",
              "utc": "1999-01-14T20:30:00Z",
              "ms": 916345800000
            },
            "end": {
              "local": "1999-01-16T00:00:00+03:30",
              "utc": "1999-01-15T20:30:00Z",
              "ms": 916432200000
            }
          },
          "covered_min": 0,
          "window_min": 1440,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 15:01 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 Mashhad.",
          "fact": "civil-day: midnight-to-midnight · Asia/Tehran"
        },
        {
          "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 15th.",
          "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 32368 s"
        },
        {
          "step": "ruling",
          "text": "Makara Saṅkrānti, Mashhad, 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 Mashhad, Makara Saṅkrānti 1999 falls on Thursday 14 January. The Sun enters Makara at 15:01 on Thu 14 Jan, and the rule counts the day from midnight.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-01-14",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-14",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 821,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-01-14T16:24:30+03:30",
          "utc": "1999-01-14T12:54:30Z",
          "ms": 916318470473.242
        },
        "end": {
          "local": "1999-01-15T17:52:08+03:30",
          "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": "1999-01-14T16:24:30+03:30",
          "utc": "1999-01-14T12:54:30Z",
          "ms": 916318470473.242
        },
        "end": {
          "local": "1999-01-15T17:52:08+03:30",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-14T16:38:11+03:30",
              "utc": "1999-01-14T13:08:11Z",
              "ms": 916319291260.8037
            },
            "end": {
              "local": "1999-01-14T18:30:47+03:30",
              "utc": "1999-01-14T15:00:47Z",
              "ms": 916326047049.8271
            }
          },
          "covered_min": 113,
          "window_min": 113,
          "qualifies": true
        },
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-15T16:39:11+03:30",
              "utc": "1999-01-15T13:09:11Z",
              "ms": 916405750508.337
            },
            "end": {
              "local": "1999-01-15T18:31:36+03:30",
              "utc": "1999-01-15T15:01:36Z",
              "ms": 916412496133.1279
            }
          },
          "covered_min": 73,
          "window_min": 112,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 16:25 on Thu 14 Jan to 17:52 on Fri 15 Jan.",
          "fact": "1999-01-14T12:54:30Z → 1999-01-15T14:22:08Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:38–18:31 on the 14th, 16:39–18:32 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 113 of 113 minutes on the 14th and 73 of 112 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 821 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1999: Thursday 14 January.",
          "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": "1999-01-14",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-14",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Thursday 14 January. Trayodaśī runs from 16:25 on Thu 14 Jan to 17:52 on Fri 15 Jan and covers all of pradoṣa that evening. It also reaches the next evening for 73 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/mashhad/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": "/mashhad/festivals/1999/mattu-pongal",
      "festival": "mattu-pongal",
      "name": "Mattu Pongal",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5859,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-02-13T03:59:46+03:30",
          "utc": "1999-02-13T00:29:46Z",
          "ms": 918865785866.7513
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        },
        "end": {
          "local": "1999-01-14T15:00:32+03:30",
          "utc": "1999-01-14T11:30:32Z",
          "ms": 916313431871.9246
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "1999-01-14",
          "window": {
            "start": {
              "local": "1999-01-13T16:37:13+03:30",
              "utc": "1999-01-13T13:07:13Z",
              "ms": 916232832694.0973
            },
            "end": {
              "local": "1999-01-14T16:38:11+03:30",
              "utc": "1999-01-14T13:08:11Z",
              "ms": 916319291260.8037
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-14T16:38:11+03:30",
              "utc": "1999-01-14T13:08:11Z",
              "ms": 916319291260.8037
            },
            "end": {
              "local": "1999-01-15T16:39:11+03:30",
              "utc": "1999-01-15T13:09:11Z",
              "ms": 916405750508.337
            }
          },
          "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 15:01 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 16:38, and the day of the 15th ends at 16:39.",
          "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 5859 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, Mashhad, 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 Mashhad, 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 15:01 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/mashhad/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": "/mashhad/festivals/1999/shivaratri?on=1999-01-15",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16075,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-01-15T17:52:08+03:30",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        },
        "end": {
          "local": "1999-01-16T18:49:12+03:30",
          "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": "1999-01-15T17:52:08+03:30",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        },
        "end": {
          "local": "1999-01-16T18:49:12+03:30",
          "utc": "1999-01-16T15:19:12Z",
          "ms": 916499952170.6957
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-01-15",
          "window": {
            "start": {
              "local": "1999-01-15T23:16:47+03:30",
              "utc": "1999-01-15T19:46:47Z",
              "ms": 916429606601.3027
            },
            "end": {
              "local": "1999-01-16T00:04:47+03:30",
              "utc": "1999-01-15T20:34:47Z",
              "ms": 916432486601.3027
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-01-16",
          "window": {
            "start": {
              "local": "1999-01-16T23:17:07+03:30",
              "utc": "1999-01-16T19:47:07Z",
              "ms": 916516027077.0835
            },
            "end": {
              "local": "1999-01-17T00:05:07+03:30",
              "utc": "1999-01-16T20:35:07Z",
              "ms": 916518907077.0835
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 17:52 on Fri 15 Jan to 18:49 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: 23:17–00:05 on the 15th, 23:17–00:05 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 16075 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 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 Mashhad, Śivarātri 1999 falls on Friday 15 January. Caturdaśī runs from 17:52 on Fri 15 Jan to 18:49 on Sat 16 Jan and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/yama-tarpana",
      "festival": "yama-tarpana",
      "name": "Yama Tarpaṇa",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36036,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-01-15T17:52:08+03:30",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        },
        "end": {
          "local": "1999-01-16T18:49:12+03:30",
          "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": "1999-01-15T17:52:08+03:30",
          "utc": "1999-01-15T14:22:08Z",
          "ms": 916410127831.2638
        },
        "end": {
          "local": "1999-01-16T18:49:12+03:30",
          "utc": "1999-01-16T15:19:12Z",
          "ms": 916499952170.6957
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "1999-01-16",
          "window": {
            "start": {
              "local": "1999-01-16T04:49:57+03:30",
              "utc": "1999-01-16T01:19:57Z",
              "ms": 916449597069.4777
            },
            "end": {
              "local": "1999-01-16T06:42:23+03:30",
              "utc": "1999-01-16T03:12:23Z",
              "ms": 916456342694.2686
            }
          },
          "covered_min": 112,
          "window_min": 112,
          "qualifies": true
        },
        {
          "local_date": "1999-01-17",
          "window": {
            "start": {
              "local": "1999-01-17T04:49:49+03:30",
              "utc": "1999-01-17T01:19:49Z",
              "ms": 916535988651.4364
            },
            "end": {
              "local": "1999-01-17T06:42:04+03:30",
              "utc": "1999-01-17T03:12:04Z",
              "ms": 916542723769.3829
            }
          },
          "covered_min": 0,
          "window_min": 112,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 17:52 on Fri 15 Jan to 18:49 on Sat 16 Jan.",
          "fact": "1999-01-15T14:22:08Z → 1999-01-16T15:19:12Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:50–06:42 on the 16th, 04:50–06:42 on the 17th.",
          "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 112 of 112 minutes on the 16th and 0 of 112 on the 17th.",
          "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 36036 s"
        },
        {
          "step": "ruling",
          "text": "Yama Tarpaṇa, Mashhad, 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 Mashhad, Yama Tarpaṇa 1999 falls on Saturday 16 January. Caturdaśī runs from 17:52 on Fri 15 Jan to 18:49 on Sat 16 Jan and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/tila-chaturthi",
      "festival": "tila-chaturthi",
      "name": "Tila Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-20",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin",
        "tie-break-unstated"
      ],
      "boundary_margin_s": 253,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-01-20T17:58:35+03:30",
          "utc": "1999-01-20T14:28:35Z",
          "ms": 916842514500.3251
        },
        "end": {
          "local": "1999-01-21T16:49:30+03:30",
          "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": "1999-01-20T17:58:35+03:30",
          "utc": "1999-01-20T14:28:35Z",
          "ms": 916842514500.3251
        },
        "end": {
          "local": "1999-01-21T16:49:30+03:30",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-01-20",
          "window": {
            "start": {
              "local": "1999-01-20T16:44:15+03:30",
              "utc": "1999-01-20T13:14:15Z",
              "ms": 916838055151.0674
            },
            "end": {
              "local": "1999-01-20T18:35:45+03:30",
              "utc": "1999-01-20T15:05:45Z",
              "ms": 916844744979.3807
            }
          },
          "covered_min": 37,
          "window_min": 111,
          "qualifies": true
        },
        {
          "local_date": "1999-01-21",
          "window": {
            "start": {
              "local": "1999-01-21T16:45:17+03:30",
              "utc": "1999-01-21T13:15:17Z",
              "ms": 916924517407.0638
            },
            "end": {
              "local": "1999-01-21T18:36:35+03:30",
              "utc": "1999-01-21T15:06:35Z",
              "ms": 916931195138.9464
            }
          },
          "covered_min": 4,
          "window_min": 111,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:59 on Wed 20 Jan to 16:50 on Thu 21 Jan.",
          "fact": "1999-01-20T14:28:35Z → 1999-01-21T13:19:30Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:44–18:36 on the 20th, 16:45–18:37 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 37 of 111 minutes on the 20th and 4 of 111 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "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 253 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Tila Caturthī, Mashhad, 1999: Wednesday 20 January.",
          "fact": "confidence: boundary (margin, tie-break-unstated)"
        }
      ],
      "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": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-20",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Tila Caturthī 1999 falls on Wednesday 20 January. Caturthī runs from 17:59 on Wed 20 Jan to 16:50 on Thu 21 Jan and covers 37 of 111 minutes of pradoṣa that evening. It also reaches the next evening for 4 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 4 min 13 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ganesha-jayanti",
      "festival": "ganesha-jayanti",
      "name": "Gaṇeśa Jayantī",
      "everyday": "Maghi Ganesh Jayanti",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16957,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-01-20T17:58:35+03:30",
          "utc": "1999-01-20T14:28:35Z",
          "ms": 916842514500.3251
        },
        "end": {
          "local": "1999-01-21T16:49:30+03:30",
          "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": "1999-01-20T17:58:35+03:30",
          "utc": "1999-01-20T14:28:35Z",
          "ms": 916842514500.3251
        },
        "end": {
          "local": "1999-01-21T16:49:30+03:30",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-01-20",
          "window": {
            "start": {
              "local": "1999-01-20T11:18:35+03:30",
              "utc": "1999-01-20T07:48:35Z",
              "ms": 916818515299.5186
            },
            "end": {
              "local": "1999-01-20T12:06:35+03:30",
              "utc": "1999-01-20T08:36:35Z",
              "ms": 916821395299.5186
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-01-21",
          "window": {
            "start": {
              "local": "1999-01-21T11:18:53+03:30",
              "utc": "1999-01-21T07:48:53Z",
              "ms": 916904933135.2407
            },
            "end": {
              "local": "1999-01-21T12:06:53+03:30",
              "utc": "1999-01-21T08:36:53Z",
              "ms": 916907813135.2407
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:59 on Wed 20 Jan to 16:50 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: 11:19–12:07 on the 20th, 11:19–12:07 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 0 of 48 minutes on the 20th and 48 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 16957 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Jayantī, Mashhad, 1999: Thursday 21 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": "1999-01-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1999 falls on Thursday 21 January. Caturthī runs from 17:59 on Wed 20 Jan to 16:50 on Thu 21 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shri-panchami",
      "festival": "shri-panchami",
      "name": "Śrī Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11755,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-01-21T16:49:30+03:30",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        },
        "end": {
          "local": "1999-01-22T15:23:05+03:30",
          "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": "1999-01-21T16:49:30+03:30",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        },
        "end": {
          "local": "1999-01-22T15:23:05+03:30",
          "utc": "1999-01-22T11:53:05Z",
          "ms": 917005984732.313
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-01-21",
          "window": {
            "start": {
              "local": "1999-01-21T11:18:53+03:30",
              "utc": "1999-01-21T07:48:53Z",
              "ms": 916904933135.2407
            },
            "end": {
              "local": "1999-01-21T12:06:53+03:30",
              "utc": "1999-01-21T08:36:53Z",
              "ms": 916907813135.2407
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-01-22",
          "window": {
            "start": {
              "local": "1999-01-22T11:19:10+03:30",
              "utc": "1999-01-22T07:49:10Z",
              "ms": 916991350194.5713
            },
            "end": {
              "local": "1999-01-22T12:07:10+03:30",
              "utc": "1999-01-22T08:37:10Z",
              "ms": 916994230194.5713
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 16:50 on Thu 21 Jan to 15:23 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: 11:19–12:07 on the 21st, 11:19–12:07 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 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 11755 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Pañcamī, Mashhad, 1999: Friday 22 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": "1999-01-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śrī Pañcamī 1999 falls on Friday 22 January. Pañcamī runs from 16:50 on Thu 21 Jan to 15:23 on Fri 22 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vasanta-panchami",
      "festival": "vasanta-panchami",
      "name": "Vasanta Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11755,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-01-21T16:49:30+03:30",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        },
        "end": {
          "local": "1999-01-22T15:23:05+03:30",
          "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": "1999-01-21T16:49:30+03:30",
          "utc": "1999-01-21T13:19:30Z",
          "ms": 916924770222.6508
        },
        "end": {
          "local": "1999-01-22T15:23:05+03:30",
          "utc": "1999-01-22T11:53:05Z",
          "ms": 917005984732.313
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-01-21",
          "window": {
            "start": {
              "local": "1999-01-21T11:18:53+03:30",
              "utc": "1999-01-21T07:48:53Z",
              "ms": 916904933135.2407
            },
            "end": {
              "local": "1999-01-21T12:06:53+03:30",
              "utc": "1999-01-21T08:36:53Z",
              "ms": 916907813135.2407
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-01-22",
          "window": {
            "start": {
              "local": "1999-01-22T11:19:10+03:30",
              "utc": "1999-01-22T07:49:10Z",
              "ms": 916991350194.5713
            },
            "end": {
              "local": "1999-01-22T12:07:10+03:30",
              "utc": "1999-01-22T08:37:10Z",
              "ms": 916994230194.5713
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 16:50 on Thu 21 Jan to 15:23 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: 11:19–12:07 on the 21st, 11:19–12:07 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 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 11755 s"
        },
        {
          "step": "ruling",
          "text": "Vasanta Pañcamī, Mashhad, 1999: Friday 22 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": "1999-01-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vasanta Pañcamī 1999 falls on Friday 22 January. Pañcamī runs from 16:50 on Thu 21 Jan to 15:23 on Fri 22 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ratha-saptami",
      "festival": "ratha-saptami",
      "name": "Ratha Saptamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18464,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-01-23T13:41:27+03:30",
          "utc": "1999-01-23T10:11:27Z",
          "ms": 917086286631.6344
        },
        "end": {
          "local": "1999-01-24T11:46:42+03:30",
          "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": "1999-01-23T13:41:27+03:30",
          "utc": "1999-01-23T10:11:27Z",
          "ms": 917086286631.6344
        },
        "end": {
          "local": "1999-01-24T11:46:42+03:30",
          "utc": "1999-01-24T08:16:42Z",
          "ms": 917165801885.867
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "1999-01-23",
          "window": {
            "start": {
              "local": "1999-01-23T04:48:25+03:30",
              "utc": "1999-01-23T01:18:25Z",
              "ms": 917054304719.9896
            },
            "end": {
              "local": "1999-01-23T06:39:30+03:30",
              "utc": "1999-01-23T03:09:30Z",
              "ms": 917060970062.6096
            }
          },
          "covered_min": 0,
          "window_min": 111,
          "qualifies": false
        },
        {
          "local_date": "1999-01-24",
          "window": {
            "start": {
              "local": "1999-01-24T04:48:05+03:30",
              "utc": "1999-01-24T01:18:05Z",
              "ms": 917140685212.2188
            },
            "end": {
              "local": "1999-01-24T06:38:58+03:30",
              "utc": "1999-01-24T03:08:58Z",
              "ms": 917147337881.1992
            }
          },
          "covered_min": 111,
          "window_min": 111,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 13:41 on Sat 23 Jan to 11:47 on Sun 24 Jan.",
          "fact": "1999-01-23T10:11:27Z → 1999-01-24T08:16:42Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:48–06:40 on the 23rd, 04:48–06:39 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 0 of 111 minutes on the 23rd and 111 of 111 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 18464 s"
        },
        {
          "step": "ruling",
          "text": "Ratha Saptamī, Mashhad, 1999: Sunday 24 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": "1999-01-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ratha Saptamī 1999 falls on Sunday 24 January. Saptamī runs from 13:41 on Sat 23 Jan to 11:47 on Sun 24 Jan and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-01-27",
      "festival": "ekadashi",
      "name": "Jayā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5229,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-01-27T05:10:01+03:30",
          "utc": "1999-01-27T01:40:01Z",
          "ms": 917401201096.936
        },
        "end": {
          "local": "1999-01-28T02:52:23+03:30",
          "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": "1999-01-27T05:10:01+03:30",
          "utc": "1999-01-27T01:40:01Z",
          "ms": 917401201096.936
        },
        "end": {
          "local": "1999-01-28T02:52:23+03:30",
          "utc": "1999-01-27T23:22:23Z",
          "ms": 917479343143.4902
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-01-27",
          "window": {
            "start": {
              "local": "1999-01-27T06:37:10+03:30",
              "utc": "1999-01-27T03:07:10Z",
              "ms": 917406430469.5361
            },
            "end": {
              "local": "1999-01-27T06:37:10+03:30",
              "utc": "1999-01-27T03:07:10Z",
              "ms": 917406430469.5361
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-01-28",
          "window": {
            "start": {
              "local": "1999-01-28T06:36:31+03:30",
              "utc": "1999-01-28T03:06:31Z",
              "ms": 917492791127.461
            },
            "end": {
              "local": "1999-01-28T06:36:31+03:30",
              "utc": "1999-01-28T03:06:31Z",
              "ms": 917492791127.461
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 05:10 on Wed 27 Jan to 02:52 on Thu 28 Jan.",
          "fact": "1999-01-27T01:40:01Z → 1999-01-27T23:22:23Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:37 on the 27th and 06:37 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 5229 s"
        },
        {
          "step": "ruling",
          "text": "Jayā Ekādaśī, Mashhad, 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 Mashhad, Jayā Ekādaśī 1999 falls on Wednesday 27 January. Ekādaśī runs from 05:10 on Wed 27 Jan to 02:52 on Thu 28 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/bhishma-dvadashi",
      "festival": "bhishma-dvadashi",
      "name": "Bhīṣma Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30492,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-01-28T02:52:23+03:30",
          "utc": "1999-01-27T23:22:23Z",
          "ms": 917479343143.4902
        },
        "end": {
          "local": "1999-01-29T00:40:06+03:30",
          "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": "1999-01-28T02:52:23+03:30",
          "utc": "1999-01-27T23:22:23Z",
          "ms": 917479343143.4902
        },
        "end": {
          "local": "1999-01-29T00:40:06+03:30",
          "utc": "1999-01-28T21:10:06Z",
          "ms": 917557806293.7622
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-01-28",
          "window": {
            "start": {
              "local": "1999-01-28T11:20:36+03:30",
              "utc": "1999-01-28T07:50:36Z",
              "ms": 917509835600.9377
            },
            "end": {
              "local": "1999-01-28T12:08:36+03:30",
              "utc": "1999-01-28T08:38:36Z",
              "ms": 917512715600.9377
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-01-29",
          "window": {
            "start": {
              "local": "1999-01-29T11:20:47+03:30",
              "utc": "1999-01-29T07:50:47Z",
              "ms": 917596246950.242
            },
            "end": {
              "local": "1999-01-29T12:08:47+03:30",
              "utc": "1999-01-29T08:38:47Z",
              "ms": 917599126950.242
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 02:52 on Thu 28 Jan to 00:40 on Fri 29 Jan.",
          "fact": "1999-01-27T23:22:23Z → 1999-01-28T21:10:06Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 28th, 11:21–12:09 on the 29th.",
          "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 28th and 0 of 48 on the 29th.",
          "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 30492 s"
        },
        {
          "step": "ruling",
          "text": "Bhīṣma Dvādaśī, Mashhad, 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 Mashhad, Bhīṣma Dvādaśī 1999 falls on Thursday 28 January. Dvādaśī runs from 02:52 on Thu 28 Jan to 00:40 on Fri 29 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-01-29",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14151,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-01-29T00:40:06+03:30",
          "utc": "1999-01-28T21:10:06Z",
          "ms": 917557806293.7622
        },
        "end": {
          "local": "1999-01-29T22:39:06+03:30",
          "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": "1999-01-29T00:40:06+03:30",
          "utc": "1999-01-28T21:10:06Z",
          "ms": 917557806293.7622
        },
        "end": {
          "local": "1999-01-29T22:39:06+03:30",
          "utc": "1999-01-29T19:09:06Z",
          "ms": 917636946301.5599
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-01-28",
          "window": {
            "start": {
              "local": "1999-01-28T16:52:40+03:30",
              "utc": "1999-01-28T13:22:40Z",
              "ms": 917529760074.4143
            },
            "end": {
              "local": "1999-01-28T18:42:25+03:30",
              "utc": "1999-01-28T15:12:25Z",
              "ms": 917536345406.2522
            }
          },
          "covered_min": 0,
          "window_min": 110,
          "qualifies": false
        },
        {
          "local_date": "1999-01-29",
          "window": {
            "start": {
              "local": "1999-01-29T16:53:44+03:30",
              "utc": "1999-01-29T13:23:44Z",
              "ms": 917616223837.2856
            },
            "end": {
              "local": "1999-01-29T18:43:15+03:30",
              "utc": "1999-01-29T15:13:15Z",
              "ms": 917622794966.5831
            }
          },
          "covered_min": 110,
          "window_min": 110,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 00:40 on Fri 29 Jan to 22:39 on Fri 29 Jan.",
          "fact": "1999-01-28T21:10:06Z → 1999-01-29T19:09:06Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:53–18:42 on the 28th, 16:54–18:43 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 0 of 110 minutes on the 28th and 110 of 110 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 14151 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 1999: Friday 29 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": "1999-01-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-01-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 1999 falls on Friday 29 January. Trayodaśī runs from 00:40 on Fri 29 Jan to 22:39 on Fri 29 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/pradosha-vrata?on=1999-01-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/maghi-purnima",
      "festival": "maghi-purnima",
      "name": "Māghī Pūrṇimā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-01-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26843,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-01-30T20:55:45+03:30",
          "utc": "1999-01-30T17:25:45Z",
          "ms": 917717145336.0492
        },
        "end": {
          "local": "1999-01-31T19:36:30+03:30",
          "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": "1999-01-30T20:55:45+03:30",
          "utc": "1999-01-30T17:25:45Z",
          "ms": 917717145336.0492
        },
        "end": {
          "local": "1999-01-31T19:36:30+03:30",
          "utc": "1999-01-31T16:06:30Z",
          "ms": 917798790282.9618
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-01-30",
          "window": {
            "start": {
              "local": "1999-01-30T11:20:57+03:30",
              "utc": "1999-01-30T07:50:57Z",
              "ms": 917682657470.9929
            },
            "end": {
              "local": "1999-01-30T12:08:57+03:30",
              "utc": "1999-01-30T08:38:57Z",
              "ms": 917685537470.9929
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-01-31",
          "window": {
            "start": {
              "local": "1999-01-31T11:21:07+03:30",
              "utc": "1999-01-31T07:51:07Z",
              "ms": 917769067165.5665
            },
            "end": {
              "local": "1999-01-31T12:09:07+03:30",
              "utc": "1999-01-31T08:39:07Z",
              "ms": 917771947165.5665
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 20:56 on Sat 30 Jan to 19:37 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: 11:21–12:09 on the 30th, 11:21–12:09 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 48 of 48 on the 31st.",
          "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: paraviddha → only-day · margin 26843 s"
        },
        {
          "step": "ruling",
          "text": "Māghī Pūrṇimā, Mashhad, 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 Mashhad, Māghī Pūrṇimā 1999 falls on Sunday 31 January. Pūrṇimā runs from 20:56 on Sat 30 Jan to 19:37 on Sun 31 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-02-03",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-02-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2994,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-02-03T18:57:38+03:30",
          "utc": "1999-02-03T15:27:38Z",
          "ms": 918055658270.7778
        },
        "end": {
          "local": "1999-02-04T20:00:36+03:30",
          "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": "1999-02-03T18:57:38+03:30",
          "utc": "1999-02-03T15:27:38Z",
          "ms": 918055658270.7778
        },
        "end": {
          "local": "1999-02-04T20:00:36+03:30",
          "utc": "1999-02-04T16:30:36Z",
          "ms": 918145836019.393
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-02-03",
          "window": {
            "start": {
              "local": "1999-02-03T19:52:43+03:30",
              "utc": "1999-02-03T16:22:43Z",
              "ms": 918058963446.9131
            },
            "end": {
              "local": "1999-02-03T19:52:43+03:30",
              "utc": "1999-02-03T16:22:43Z",
              "ms": 918058963446.9131
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-02-04",
          "window": {
            "start": {
              "local": "1999-02-04T20:50:30+03:30",
              "utc": "1999-02-04T17:20:30Z",
              "ms": 918148829831.2806
            },
            "end": {
              "local": "1999-02-04T20:50:30+03:30",
              "utc": "1999-02-04T17:20:30Z",
              "ms": 918148829831.2806
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 18:58 on Wed 3 Feb to 20:01 on Thu 4 Feb.",
          "fact": "1999-02-03T15:27:38Z → 1999-02-04T16:30:36Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:53 on the 3rd and 20:50 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 2994 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 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 Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Wednesday 3 February. Caturthī runs from 18:58 on Wed 3 Feb to 20:01 on Thu 4 Feb and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-02-12",
      "festival": "ekadashi",
      "name": "Vijayā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-02-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9596,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-02-11T09:04:30+03:30",
          "utc": "1999-02-11T05:34:30Z",
          "ms": 918711269602.7188
        },
        "end": {
          "local": "1999-02-12T10:33:07+03:30",
          "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": "1999-02-11T09:04:30+03:30",
          "utc": "1999-02-11T05:34:30Z",
          "ms": 918711269602.7188
        },
        "end": {
          "local": "1999-02-12T10:33:07+03:30",
          "utc": "1999-02-12T07:03:07Z",
          "ms": 918802986978.417
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-02-11",
          "window": {
            "start": {
              "local": "1999-02-11T06:24:34+03:30",
              "utc": "1999-02-11T02:54:34Z",
              "ms": 918701673805.1404
            },
            "end": {
              "local": "1999-02-11T06:24:34+03:30",
              "utc": "1999-02-11T02:54:34Z",
              "ms": 918701673805.1404
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-02-12",
          "window": {
            "start": {
              "local": "1999-02-12T06:23:32+03:30",
              "utc": "1999-02-12T02:53:32Z",
              "ms": 918788011940.3044
            },
            "end": {
              "local": "1999-02-12T06:23:32+03:30",
              "utc": "1999-02-12T02:53:32Z",
              "ms": 918788011940.3044
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 09:04 on Thu 11 Feb to 10:33 on Fri 12 Feb.",
          "fact": "1999-02-11T05:34:30Z → 1999-02-12T07:03:07Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:25 on the 11th and 06:24 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 9596 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Ekādaśī, Mashhad, 1999: Friday 12 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": "1999-02-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-02-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vijayā Ekādaśī 1999 falls on Friday 12 February. Ekādaśī runs from 09:04 on Thu 11 Feb to 10:33 on Fri 12 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/ekadashi?on=1999-02-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/pradosha-vrata?on=1999-02-13",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-02-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20066,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-02-13T11:24:22+03:30",
          "utc": "1999-02-13T07:54:22Z",
          "ms": 918892461551.1909
        },
        "end": {
          "local": "1999-02-14T11:36:08+03:30",
          "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": "1999-02-13T11:24:22+03:30",
          "utc": "1999-02-13T07:54:22Z",
          "ms": 918892461551.1909
        },
        "end": {
          "local": "1999-02-14T11:36:08+03:30",
          "utc": "1999-02-14T08:06:08Z",
          "ms": 918979567571.5792
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-02-13",
          "window": {
            "start": {
              "local": "1999-02-13T17:09:32+03:30",
              "utc": "1999-02-13T13:39:32Z",
              "ms": 918913171707.9958
            },
            "end": {
              "local": "1999-02-13T18:55:07+03:30",
              "utc": "1999-02-13T15:25:07Z",
              "ms": 918919506745.7534
            }
          },
          "covered_min": 106,
          "window_min": 106,
          "qualifies": true
        },
        {
          "local_date": "1999-02-14",
          "window": {
            "start": {
              "local": "1999-02-14T17:10:33+03:30",
              "utc": "1999-02-14T13:40:33Z",
              "ms": 918999633427.7777
            },
            "end": {
              "local": "1999-02-14T18:55:51+03:30",
              "utc": "1999-02-14T15:25:51Z",
              "ms": 919005951499.6609
            }
          },
          "covered_min": 0,
          "window_min": 105,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 11:24 on Sat 13 Feb to 11:36 on Sun 14 Feb.",
          "fact": "1999-02-13T07:54:22Z → 1999-02-14T08:06:08Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:10–18:55 on the 13th, 17:11–18:56 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 106 of 106 minutes on the 13th and 0 of 105 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 20066 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 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 Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Saturday 13 February. Trayodaśī runs from 11:24 on Sat 13 Feb to 11:36 on Sun 14 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/maha-shivaratri",
      "festival": "maha-shivaratri",
      "name": "Mahāśivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-02-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 39613,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-02-14T11:36:08+03:30",
          "utc": "1999-02-14T08:06:08Z",
          "ms": 918979567571.5792
        },
        "end": {
          "local": "1999-02-15T11:09:39+03:30",
          "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": "1999-02-14T11:36:08+03:30",
          "utc": "1999-02-14T08:06:08Z",
          "ms": 918979567571.5792
        },
        "end": {
          "local": "1999-02-15T11:09:39+03:30",
          "utc": "1999-02-15T07:39:39Z",
          "ms": 919064379258.5859
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-02-13",
          "window": {
            "start": {
              "local": "1999-02-13T23:21:28+03:30",
              "utc": "1999-02-13T19:51:28Z",
              "ms": 918935488099.5867
            },
            "end": {
              "local": "1999-02-14T00:09:28+03:30",
              "utc": "1999-02-13T20:39:28Z",
              "ms": 918938368099.5867
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-02-14",
          "window": {
            "start": {
              "local": "1999-02-14T23:21:26+03:30",
              "utc": "1999-02-14T19:51:26Z",
              "ms": 919021886197.3396
            },
            "end": {
              "local": "1999-02-15T00:09:26+03:30",
              "utc": "1999-02-14T20:39:26Z",
              "ms": 919024766197.3396
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 11:36 on Sun 14 Feb to 11:10 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: 23:21–00:09 on the 13th, 23:21–00:09 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 39613 s"
        },
        {
          "step": "ruling",
          "text": "Mahāśivarātri, Mashhad, 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 Mashhad, Mahāśivarātri 1999 falls on Sunday 14 February. Caturdaśī runs from 11:36 on Sun 14 Feb to 11:10 on Mon 15 Feb and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-02-19",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-02-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24314,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-02-19T04:36:27+03:30",
          "utc": "1999-02-19T01:06:27Z",
          "ms": 919386387465.7258
        },
        "end": {
          "local": "1999-02-20T02:17:24+03:30",
          "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": "1999-02-19T04:36:27+03:30",
          "utc": "1999-02-19T01:06:27Z",
          "ms": 919386387465.7258
        },
        "end": {
          "local": "1999-02-20T02:17:24+03:30",
          "utc": "1999-02-19T22:47:24Z",
          "ms": 919464444177.5453
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-02-19",
          "window": {
            "start": {
              "local": "1999-02-19T11:21:42+03:30",
              "utc": "1999-02-19T07:51:42Z",
              "ms": 919410701553.2728
            },
            "end": {
              "local": "1999-02-19T12:09:42+03:30",
              "utc": "1999-02-19T08:39:42Z",
              "ms": 919413581553.2728
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-02-20",
          "window": {
            "start": {
              "local": "1999-02-20T11:21:36+03:30",
              "utc": "1999-02-20T07:51:36Z",
              "ms": 919497095955.9863
            },
            "end": {
              "local": "1999-02-20T12:09:36+03:30",
              "utc": "1999-02-20T08:39:36Z",
              "ms": 919499975955.9863
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 04:36 on Fri 19 Feb to 02:17 on Sat 20 Feb.",
          "fact": "1999-02-19T01:06:27Z → 1999-02-19T22:47:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 19th, 11:22–12:10 on the 20th.",
          "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 19th and 0 of 48 on the 20th.",
          "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 24314 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 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 Mashhad, Vināyaka Caturthī 1999 falls on Friday 19 February. Caturthī runs from 04:36 on Fri 19 Feb to 02:17 on Sat 20 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-02-26",
      "festival": "ekadashi",
      "name": "Āmalakī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-02-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22255,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-02-25T13:39:17+03:30",
          "utc": "1999-02-25T10:09:17Z",
          "ms": 919937356824.7375
        },
        "end": {
          "local": "1999-02-26T12:18:03+03:30",
          "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": "1999-02-25T13:39:17+03:30",
          "utc": "1999-02-25T10:09:17Z",
          "ms": 919937356824.7375
        },
        "end": {
          "local": "1999-02-26T12:18:03+03:30",
          "utc": "1999-02-26T08:48:03Z",
          "ms": 920018883017.463
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-02-25",
          "window": {
            "start": {
              "local": "1999-02-25T06:08:25+03:30",
              "utc": "1999-02-25T02:38:25Z",
              "ms": 919910304672.5171
            },
            "end": {
              "local": "1999-02-25T06:08:25+03:30",
              "utc": "1999-02-25T02:38:25Z",
              "ms": 919910304672.5171
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-02-26",
          "window": {
            "start": {
              "local": "1999-02-26T06:07:08+03:30",
              "utc": "1999-02-26T02:37:08Z",
              "ms": 919996628009.7864
            },
            "end": {
              "local": "1999-02-26T06:07:08+03:30",
              "utc": "1999-02-26T02:37:08Z",
              "ms": 919996628009.7864
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 13:39 on Thu 25 Feb to 12:18 on Fri 26 Feb.",
          "fact": "1999-02-25T10:09:17Z → 1999-02-26T08:48:03Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:08 on the 25th and 06:07 on the 26th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 25th and is 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 22255 s"
        },
        {
          "step": "ruling",
          "text": "Āmalakī Ekādaśī, Mashhad, 1999: Friday 26 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": "1999-02-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-02-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Āmalakī Ekādaśī 1999 falls on Friday 26 February. Ekādaśī runs from 13:39 on Thu 25 Feb to 12:18 on Fri 26 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/ekadashi?on=1999-02-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/pradosha-vrata?on=1999-02-27",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-02-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22040,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-02-27T11:16:07+03:30",
          "utc": "1999-02-27T07:46:07Z",
          "ms": 920101566525.6823
        },
        "end": {
          "local": "1999-02-28T10:35:39+03:30",
          "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": "1999-02-27T11:16:07+03:30",
          "utc": "1999-02-27T07:46:07Z",
          "ms": 920101566525.6823
        },
        "end": {
          "local": "1999-02-28T10:35:39+03:30",
          "utc": "1999-02-28T07:05:39Z",
          "ms": 920185538573.4523
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-02-27",
          "window": {
            "start": {
              "local": "1999-02-27T17:23:26+03:30",
              "utc": "1999-02-27T13:53:26Z",
              "ms": 920123606466.9281
            },
            "end": {
              "local": "1999-02-27T19:04:55+03:30",
              "utc": "1999-02-27T15:34:55Z",
              "ms": 920129695239.6571
            }
          },
          "covered_min": 101,
          "window_min": 101,
          "qualifies": true
        },
        {
          "local_date": "1999-02-28",
          "window": {
            "start": {
              "local": "1999-02-28T17:24:24+03:30",
              "utc": "1999-02-28T13:54:24Z",
              "ms": 920210063506.3381
            },
            "end": {
              "local": "1999-02-28T19:05:34+03:30",
              "utc": "1999-02-28T15:35:34Z",
              "ms": 920216134138.503
            }
          },
          "covered_min": 0,
          "window_min": 101,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 11:16 on Sat 27 Feb to 10:36 on Sun 28 Feb.",
          "fact": "1999-02-27T07:46:07Z → 1999-02-28T07:05:39Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:23–19:05 on the 27th, 17:24–19:06 on the 28th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 101 of 101 minutes on the 27th and 0 of 101 on the 28th.",
          "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 22040 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 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 Mashhad, Śukla Pradoṣa Vrata 1999 falls on Saturday 27 February. Trayodaśī runs from 11:16 on Sat 27 Feb to 10:36 on Sun 28 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/holika-dahana",
      "festival": "holika-dahana",
      "name": "Holikā Dahana",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16857,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-03-01T10:18:59+03:30",
          "utc": "1999-03-01T06:48:59Z",
          "ms": 920270938882.9066
        },
        "end": {
          "local": "1999-03-02T10:28:27+03:30",
          "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": "1999-03-01T10:18:59+03:30",
          "utc": "1999-03-01T06:48:59Z",
          "ms": 920270938882.9066
        },
        "end": {
          "local": "1999-03-02T10:28:27+03:30",
          "utc": "1999-03-02T06:58:27Z",
          "ms": 920357907125.1583
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1999-03-01",
          "window": {
            "start": {
              "local": "1999-03-01T15:08:55+03:30",
              "utc": "1999-03-01T11:38:55Z",
              "ms": 920288334820.3066
            },
            "end": {
              "local": "1999-03-01T17:25:20+03:30",
              "utc": "1999-03-01T13:55:20Z",
              "ms": 920296520213.4895
            }
          },
          "covered_min": 136,
          "window_min": 136,
          "qualifies": true
        },
        {
          "local_date": "1999-03-02",
          "window": {
            "start": {
              "local": "1999-03-02T15:09:24+03:30",
              "utc": "1999-03-02T11:39:24Z",
              "ms": 920374763981.7517
            },
            "end": {
              "local": "1999-03-02T17:26:17+03:30",
              "utc": "1999-03-02T13:56:17Z",
              "ms": 920382976597.5967
            }
          },
          "covered_min": 0,
          "window_min": 137,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 10:19 on Mon 1 Mar to 10:28 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: 15:09–17:25 on the 1st, 15:09–17:26 on the 2nd.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 136 of 136 minutes on the 1st and 0 of 137 on the 2nd.",
          "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 16857 s"
        },
        {
          "step": "ruling",
          "text": "Holikā Dahana, Mashhad, 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 Mashhad, Holikā Dahana 1999 falls on Monday 1 March. Pūrṇimā runs from 10:19 on Mon 1 Mar to 10:28 on Tue 2 Mar and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/holi",
      "festival": "holi",
      "name": "Holī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16857,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-03-01T10:18:59+03:30",
          "utc": "1999-03-01T06:48:59Z",
          "ms": 920270938882.9066
        },
        "end": {
          "local": "1999-03-02T10:28:27+03:30",
          "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": "1999-03-01T10:18:59+03:30",
          "utc": "1999-03-01T06:48:59Z",
          "ms": 920270938882.9066
        },
        "end": {
          "local": "1999-03-02T10:28:27+03:30",
          "utc": "1999-03-02T06:58:27Z",
          "ms": 920357907125.1583
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1999-03-01",
          "window": {
            "start": {
              "local": "1999-03-01T15:08:55+03:30",
              "utc": "1999-03-01T11:38:55Z",
              "ms": 920288334820.3066
            },
            "end": {
              "local": "1999-03-01T17:25:20+03:30",
              "utc": "1999-03-01T13:55:20Z",
              "ms": 920296520213.4895
            }
          },
          "covered_min": 136,
          "window_min": 136,
          "qualifies": true
        },
        {
          "local_date": "1999-03-02",
          "window": {
            "start": {
              "local": "1999-03-02T15:09:24+03:30",
              "utc": "1999-03-02T11:39:24Z",
              "ms": 920374763981.7517
            },
            "end": {
              "local": "1999-03-02T17:26:17+03:30",
              "utc": "1999-03-02T13:56:17Z",
              "ms": 920382976597.5967
            }
          },
          "covered_min": 0,
          "window_min": 137,
          "qualifies": false
        }
      ],
      "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 10:19 on Mon 1 Mar to 10:28 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: 15:09–17:25 on the 1st, 15:09–17:26 on the 2nd.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 136 of 136 minutes on the 1st and 0 of 137 on the 2nd.",
          "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 16857 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, Mashhad, 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 Mashhad, Holī 1999 falls on Tuesday 2 March. It is kept the day after Holikā Dahana, which falls on Monday 1 March. Pūrṇimā runs from 10:19 on Mon 1 Mar to 10:28 on Tue 2 Mar and covers all of sāyāhna on the 1st.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vasantotsava",
      "festival": "vasantotsava",
      "name": "Vasantotsava",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15994,
      "anga": {
        "type": "tithi",
        "index": 15,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-03-02T10:28:27+03:30",
          "utc": "1999-03-02T06:58:27Z",
          "ms": 920357907125.1583
        },
        "end": {
          "local": "1999-03-03T11:06:01+03:30",
          "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": "1999-03-02T10:28:27+03:30",
          "utc": "1999-03-02T06:58:27Z",
          "ms": 920357907125.1583
        },
        "end": {
          "local": "1999-03-03T11:06:01+03:30",
          "utc": "1999-03-03T07:36:01Z",
          "ms": 920446561216.7366
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-03-02",
          "window": {
            "start": {
              "local": "1999-03-02T06:01:54+03:30",
              "utc": "1999-03-02T02:31:54Z",
              "ms": 920341913518.3721
            },
            "end": {
              "local": "1999-03-02T06:01:54+03:30",
              "utc": "1999-03-02T02:31:54Z",
              "ms": 920341913518.3721
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-03-03",
          "window": {
            "start": {
              "local": "1999-03-03T06:00:33+03:30",
              "utc": "1999-03-03T02:30:33Z",
              "ms": 920428233109.3253
            },
            "end": {
              "local": "1999-03-03T06:00:33+03:30",
              "utc": "1999-03-03T02:30:33Z",
              "ms": 920428233109.3253
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 10:28 on Tue 2 Mar to 11:06 on Wed 3 Mar.",
          "fact": "1999-03-02T06:58:27Z → 1999-03-03T07:36:01Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:02 on the 2nd and 06:01 on the 3rd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā 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: purvaviddha → only-day · margin 15994 s"
        },
        {
          "step": "ruling",
          "text": "Vasantotsava, Mashhad, 1999: Wednesday 3 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": "1999-03-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vasantotsava 1999 falls on Wednesday 3 March. Pratipadā runs from 10:28 on Tue 2 Mar to 11:06 on Wed 3 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-03-05",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20287,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-03-05T13:47:49+03:30",
          "utc": "1999-03-05T10:17:49Z",
          "ms": 920629069237.464
        },
        "end": {
          "local": "1999-03-06T15:48:11+03:30",
          "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": "1999-03-05T13:47:49+03:30",
          "utc": "1999-03-05T10:17:49Z",
          "ms": 920629069237.464
        },
        "end": {
          "local": "1999-03-06T15:48:11+03:30",
          "utc": "1999-03-06T12:18:11Z",
          "ms": 920722690977.1301
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-03-05",
          "window": {
            "start": {
              "local": "1999-03-05T20:30:59+03:30",
              "utc": "1999-03-05T17:00:59Z",
              "ms": 920653259298.8864
            },
            "end": {
              "local": "1999-03-05T20:30:59+03:30",
              "utc": "1999-03-05T17:00:59Z",
              "ms": 920653259298.8864
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-03-06",
          "window": {
            "start": {
              "local": "1999-03-06T21:26:18+03:30",
              "utc": "1999-03-06T17:56:18Z",
              "ms": 920742978475.7382
            },
            "end": {
              "local": "1999-03-06T21:26:18+03:30",
              "utc": "1999-03-06T17:56:18Z",
              "ms": 920742978475.7382
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:48 on Fri 5 Mar to 15:48 on Sat 6 Mar.",
          "fact": "1999-03-05T10:17:49Z → 1999-03-06T12:18:11Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:31 on the 5th and 21:26 on the 6th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 5th and is not on the 6th.",
          "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 20287 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 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 Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Friday 5 March. Caturthī runs from 13:48 on Fri 5 Mar to 15:48 on Sat 6 Mar and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shitalashtami",
      "festival": "shitalashtami",
      "name": "Śītalāṣṭamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36330,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-03-09T23:02:20+03:30",
          "utc": "1999-03-09T19:32:20Z",
          "ms": 921007940454.4563
        },
        "end": {
          "local": "1999-03-11T01:12:30+03:30",
          "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": "1999-03-09T23:02:20+03:30",
          "utc": "1999-03-09T19:32:20Z",
          "ms": 921007940454.4563
        },
        "end": {
          "local": "1999-03-11T01:12:30+03:30",
          "utc": "1999-03-10T21:42:30Z",
          "ms": 921102149791.701
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-10",
          "window": {
            "start": {
              "local": "1999-03-10T11:18:16+03:30",
              "utc": "1999-03-10T07:48:16Z",
              "ms": 921052095639.3223
            },
            "end": {
              "local": "1999-03-10T12:06:16+03:30",
              "utc": "1999-03-10T08:36:16Z",
              "ms": 921054975639.3223
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-03-11",
          "window": {
            "start": {
              "local": "1999-03-11T11:18:00+03:30",
              "utc": "1999-03-11T07:48:00Z",
              "ms": 921138480276.7412
            },
            "end": {
              "local": "1999-03-11T12:06:00+03:30",
              "utc": "1999-03-11T08:36:00Z",
              "ms": 921141360276.7412
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 23:02 on Tue 9 Mar to 01:12 on Thu 11 Mar.",
          "fact": "1999-03-09T19:32:20Z → 1999-03-10T21:42:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:18–12:06 on the 10th, 11:18–12:06 on the 11th.",
          "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 10th and 0 of 48 on the 11th.",
          "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 36330 s"
        },
        {
          "step": "ruling",
          "text": "Śītalāṣṭamī, Mashhad, 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 Mashhad, Śītalāṣṭamī 1999 falls on Wednesday 10 March. Aṣṭamī runs from 23:02 on Tue 9 Mar to 01:12 on Thu 11 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-03-13",
      "festival": "ekadashi",
      "name": "Pāpamocanī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5352,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-03-13T03:57:25+03:30",
          "utc": "1999-03-13T00:27:25Z",
          "ms": 921284844898.9974
        },
        "end": {
          "local": "1999-03-14T04:16:01+03:30",
          "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": "1999-03-13T03:57:25+03:30",
          "utc": "1999-03-13T00:27:25Z",
          "ms": 921284844898.9974
        },
        "end": {
          "local": "1999-03-14T04:16:01+03:30",
          "utc": "1999-03-14T00:46:01Z",
          "ms": 921372360879.093
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-03-13",
          "window": {
            "start": {
              "local": "1999-03-13T05:46:39+03:30",
              "utc": "1999-03-13T02:16:39Z",
              "ms": 921291398926.8198
            },
            "end": {
              "local": "1999-03-13T05:46:39+03:30",
              "utc": "1999-03-13T02:16:39Z",
              "ms": 921291398926.8198
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-03-14",
          "window": {
            "start": {
              "local": "1999-03-14T05:45:13+03:30",
              "utc": "1999-03-14T02:15:13Z",
              "ms": 921377713197.5983
            },
            "end": {
              "local": "1999-03-14T05:45:13+03:30",
              "utc": "1999-03-14T02:15:13Z",
              "ms": 921377713197.5983
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 03:57 on Sat 13 Mar to 04:16 on Sun 14 Mar.",
          "fact": "1999-03-13T00:27:25Z → 1999-03-14T00:46:01Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:47 on the 13th and 05:45 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 5352 s"
        },
        {
          "step": "ruling",
          "text": "Pāpamocanī Ekādaśī, Mashhad, 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 Mashhad, Pāpamocanī Ekādaśī 1999 falls on Saturday 13 March. Ekādaśī runs from 03:57 on Sat 13 Mar to 04:16 on Sun 14 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-03-15",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26436,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-03-15T03:48:00+03:30",
          "utc": "1999-03-15T00:18:00Z",
          "ms": 921457079700.3799
        },
        "end": {
          "local": "1999-03-16T02:35:15+03:30",
          "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": "1999-03-15T03:48:00+03:30",
          "utc": "1999-03-15T00:18:00Z",
          "ms": 921457079700.3799
        },
        "end": {
          "local": "1999-03-16T02:35:15+03:30",
          "utc": "1999-03-15T23:05:15Z",
          "ms": 921539115148.7944
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-03-14",
          "window": {
            "start": {
              "local": "1999-03-14T17:37:12+03:30",
              "utc": "1999-03-14T14:07:12Z",
              "ms": 921420431661.631
            },
            "end": {
              "local": "1999-03-14T19:14:04+03:30",
              "utc": "1999-03-14T15:44:04Z",
              "ms": 921426244395.9188
            }
          },
          "covered_min": 0,
          "window_min": 97,
          "qualifies": false
        },
        {
          "local_date": "1999-03-15",
          "window": {
            "start": {
              "local": "1999-03-15T17:38:05+03:30",
              "utc": "1999-03-15T14:08:05Z",
              "ms": 921506884743.645
            },
            "end": {
              "local": "1999-03-15T19:14:39+03:30",
              "utc": "1999-03-15T15:44:39Z",
              "ms": 921512678893.6199
            }
          },
          "covered_min": 97,
          "window_min": 97,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 03:48 on Mon 15 Mar to 02:35 on Tue 16 Mar.",
          "fact": "1999-03-15T00:18:00Z → 1999-03-15T23:05:15Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:37–19:14 on the 14th, 17:38–19:15 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 97 minutes on the 14th and 97 of 97 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 26436 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1999: Monday 15 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": "1999-03-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Monday 15 March. Trayodaśī runs from 03:48 on Mon 15 Mar to 02:35 on Tue 16 Mar and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shivaratri?on=1999-03-16",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2333,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-03-16T02:35:15+03:30",
          "utc": "1999-03-15T23:05:15Z",
          "ms": 921539115148.7944
        },
        "end": {
          "local": "1999-03-17T00:42:49+03:30",
          "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": "1999-03-16T02:35:15+03:30",
          "utc": "1999-03-15T23:05:15Z",
          "ms": 921539115148.7944
        },
        "end": {
          "local": "1999-03-17T00:42:49+03:30",
          "utc": "1999-03-16T21:12:49Z",
          "ms": 921618768685.7852
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-03-15",
          "window": {
            "start": {
              "local": "1999-03-15T23:16:13+03:30",
              "utc": "1999-03-15T19:46:13Z",
              "ms": 921527172806.0505
            },
            "end": {
              "local": "1999-03-16T00:04:13+03:30",
              "utc": "1999-03-15T20:34:13Z",
              "ms": 921530052806.0505
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-16",
          "window": {
            "start": {
              "local": "1999-03-16T23:15:56+03:30",
              "utc": "1999-03-16T19:45:56Z",
              "ms": 921613555977.8748
            },
            "end": {
              "local": "1999-03-17T00:03:56+03:30",
              "utc": "1999-03-16T20:33:56Z",
              "ms": 921616435977.8748
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 02:35 on Tue 16 Mar to 00:43 on Wed 17 Mar.",
          "fact": "1999-03-15T23:05:15Z → 1999-03-16T21:12:49Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:16–00:04 on the 15th, 23:16–00:04 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 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 night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 2333 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 1999: Tuesday 16 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": "1999-03-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 1999 falls on Tuesday 16 March. Caturdaśī runs from 02:35 on Tue 16 Mar to 00:43 on Wed 17 Mar and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/shivaratri?on=1999-03-16",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/navaratra-arambha-caitra",
      "festival": "navaratra-arambha-caitra",
      "name": "Navarātrārambha (Caitra)",
      "everyday": "Chaitra Navratri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26711,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-03-17T22:17:56+03:30",
          "utc": "1999-03-17T18:47:56Z",
          "ms": 921696475864.9741
        },
        "end": {
          "local": "1999-03-18T19:29:16+03:30",
          "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": "1999-03-17T22:17:56+03:30",
          "utc": "1999-03-17T18:47:56Z",
          "ms": 921696475864.9741
        },
        "end": {
          "local": "1999-03-18T19:29:16+03:30",
          "utc": "1999-03-18T15:59:16Z",
          "ms": 921772755895.3011
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-17",
          "window": {
            "start": {
              "local": "1999-03-17T11:16:22+03:30",
              "utc": "1999-03-17T07:46:22Z",
              "ms": 921656782328.1407
            },
            "end": {
              "local": "1999-03-17T12:04:22+03:30",
              "utc": "1999-03-17T08:34:22Z",
              "ms": 921659662328.1407
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-18",
          "window": {
            "start": {
              "local": "1999-03-18T11:16:05+03:30",
              "utc": "1999-03-18T07:46:05Z",
              "ms": 921743165205.9934
            },
            "end": {
              "local": "1999-03-18T12:04:05+03:30",
              "utc": "1999-03-18T08:34:05Z",
              "ms": 921746045205.9934
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 22:18 on Wed 17 Mar to 19:29 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: 11:16–12:04 on the 17th, 11:16–12:04 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 48 of 48 on the 18th.",
          "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 26711 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha (Caitra), Mashhad, 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 Mashhad, Navarātrārambha (Caitra) (Chaitra Navratri) 1999 falls on Thursday 18 March. Pratipadā runs from 22:18 on Wed 17 Mar to 19:29 on Thu 18 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/gauri-tritiya",
      "festival": "gauri-tritiya",
      "name": "Gaurī Tṛtīyā",
      "everyday": "Gangaur",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4471,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-03-19T16:26:09+03:30",
          "utc": "1999-03-19T12:56:09Z",
          "ms": 921848168998.649
        },
        "end": {
          "local": "1999-03-20T13:18:01+03:30",
          "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": "1999-03-19T16:26:09+03:30",
          "utc": "1999-03-19T12:56:09Z",
          "ms": 921848168998.649
        },
        "end": {
          "local": "1999-03-20T13:18:01+03:30",
          "utc": "1999-03-20T09:48:01Z",
          "ms": 921923281443.1925
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-19",
          "window": {
            "start": {
              "local": "1999-03-19T11:15:48+03:30",
              "utc": "1999-03-19T07:45:48Z",
              "ms": 921829547899.3417
            },
            "end": {
              "local": "1999-03-19T12:03:48+03:30",
              "utc": "1999-03-19T08:33:48Z",
              "ms": 921832427899.3417
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-20",
          "window": {
            "start": {
              "local": "1999-03-20T11:15:30+03:30",
              "utc": "1999-03-20T07:45:30Z",
              "ms": 921915930423.7815
            },
            "end": {
              "local": "1999-03-20T12:03:30+03:30",
              "utc": "1999-03-20T08:33:30Z",
              "ms": 921918810423.7815
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 16:26 on Fri 19 Mar to 13:18 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: 11:16–12:04 on the 19th, 11:16–12:04 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 0 of 48 minutes on the 19th and 48 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 4471 s"
        },
        {
          "step": "ruling",
          "text": "Gaurī Tṛtīyā, Mashhad, 1999: Saturday 20 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": "1999-03-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Gaurī Tṛtīyā (Gangaur) 1999 falls on Saturday 20 March. Tṛtīyā runs from 16:26 on Fri 19 Mar to 13:18 on Sat 20 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/saubhagya-shayana-vrata",
      "festival": "saubhagya-shayana-vrata",
      "name": "Saubhāgya Śayana Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4471,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-03-19T16:26:09+03:30",
          "utc": "1999-03-19T12:56:09Z",
          "ms": 921848168998.649
        },
        "end": {
          "local": "1999-03-20T13:18:01+03:30",
          "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": "1999-03-19T16:26:09+03:30",
          "utc": "1999-03-19T12:56:09Z",
          "ms": 921848168998.649
        },
        "end": {
          "local": "1999-03-20T13:18:01+03:30",
          "utc": "1999-03-20T09:48:01Z",
          "ms": 921923281443.1925
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-19",
          "window": {
            "start": {
              "local": "1999-03-19T11:15:48+03:30",
              "utc": "1999-03-19T07:45:48Z",
              "ms": 921829547899.3417
            },
            "end": {
              "local": "1999-03-19T12:03:48+03:30",
              "utc": "1999-03-19T08:33:48Z",
              "ms": 921832427899.3417
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-20",
          "window": {
            "start": {
              "local": "1999-03-20T11:15:30+03:30",
              "utc": "1999-03-20T07:45:30Z",
              "ms": 921915930423.7815
            },
            "end": {
              "local": "1999-03-20T12:03:30+03:30",
              "utc": "1999-03-20T08:33:30Z",
              "ms": 921918810423.7815
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 16:26 on Fri 19 Mar to 13:18 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: 11:16–12:04 on the 19th, 11:16–12:04 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 0 of 48 minutes on the 19th and 48 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 4471 s"
        },
        {
          "step": "ruling",
          "text": "Saubhāgya Śayana Vrata, Mashhad, 1999: Saturday 20 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": "1999-03-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saubhāgya Śayana Vrata 1999 falls on Saturday 20 March. Tṛtīyā runs from 16:26 on Fri 19 Mar to 13:18 on Sat 20 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/lakshmi-panchami",
      "festival": "lakshmi-panchami",
      "name": "Lakṣmī Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3677,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-03-21T10:13:56+03:30",
          "utc": "1999-03-21T06:43:56Z",
          "ms": 921998635977.4628
        },
        "end": {
          "local": "1999-03-22T08:22:05+04:30",
          "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": "1999-03-21T10:13:56+03:30",
          "utc": "1999-03-21T06:43:56Z",
          "ms": 921998635977.4628
        },
        "end": {
          "local": "1999-03-22T08:22:05+04:30",
          "utc": "1999-03-22T03:52:05Z",
          "ms": 922074725313.717
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-21",
          "window": {
            "start": {
              "local": "1999-03-21T11:15:13+03:30",
              "utc": "1999-03-21T07:45:13Z",
              "ms": 922002312795.3464
            },
            "end": {
              "local": "1999-03-21T12:03:13+03:30",
              "utc": "1999-03-21T08:33:13Z",
              "ms": 922005192795.3464
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-03-22",
          "window": {
            "start": {
              "local": "1999-03-22T12:14:55+04:30",
              "utc": "1999-03-22T07:44:55Z",
              "ms": 922088695030.8843
            },
            "end": {
              "local": "1999-03-22T13:02:55+04:30",
              "utc": "1999-03-22T08:32:55Z",
              "ms": 922091575030.8843
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 10:14 on Sun 21 Mar to 08:22 on Mon 22 Mar.",
          "fact": "1999-03-21T06:43:56Z → 1999-03-22T03:52:05Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 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 3677 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pañcamī, Mashhad, 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 Mashhad, Lakṣmī Pañcamī 1999 falls on Sunday 21 March. Pañcamī runs from 10:14 on Sun 21 Mar to 08:22 on Mon 22 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-03-21",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3677,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-03-20T13:18:01+03:30",
          "utc": "1999-03-20T09:48:01Z",
          "ms": 921923281443.1925
        },
        "end": {
          "local": "1999-03-21T10:13:56+03:30",
          "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": "1999-03-20T13:18:01+03:30",
          "utc": "1999-03-20T09:48:01Z",
          "ms": 921923281443.1925
        },
        "end": {
          "local": "1999-03-21T10:13:56+03:30",
          "utc": "1999-03-21T06:43:56Z",
          "ms": 921998635977.4628
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-20",
          "window": {
            "start": {
              "local": "1999-03-20T11:15:30+03:30",
              "utc": "1999-03-20T07:45:30Z",
              "ms": 921915930423.7815
            },
            "end": {
              "local": "1999-03-20T12:03:30+03:30",
              "utc": "1999-03-20T08:33:30Z",
              "ms": 921918810423.7815
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-21",
          "window": {
            "start": {
              "local": "1999-03-21T11:15:13+03:30",
              "utc": "1999-03-21T07:45:13Z",
              "ms": 922002312795.3464
            },
            "end": {
              "local": "1999-03-21T12:03:13+03:30",
              "utc": "1999-03-21T08:33:13Z",
              "ms": 922005192795.3464
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:18 on Sat 20 Mar to 10:14 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: 11:16–12:04 on the 20th, 11:15–12:03 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 0 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": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: unstated → second-day · margin 3677 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 1999: Sunday 21 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": "1999-03-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 1999 falls on Sunday 21 March. Caturthī runs from 13:18 on Sat 20 Mar to 10:14 on Sun 21 Mar, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-03-21",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/bhavani-utpatti",
      "festival": "bhavani-utpatti",
      "name": "Bhavānī Utpatti",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30774,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-03-24T03:41:26+04:30",
          "utc": "1999-03-23T23:11:26Z",
          "ms": 922230685559.8624
        },
        "end": {
          "local": "1999-03-25T02:01:31+04:30",
          "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": "1999-03-24T03:41:26+04:30",
          "utc": "1999-03-23T23:11:26Z",
          "ms": 922230685559.8624
        },
        "end": {
          "local": "1999-03-25T02:01:31+04:30",
          "utc": "1999-03-24T21:31:31Z",
          "ms": 922311091372.3479
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-24",
          "window": {
            "start": {
              "local": "1999-03-24T12:14:19+04:30",
              "utc": "1999-03-24T07:44:19Z",
              "ms": 922261459166.7087
            },
            "end": {
              "local": "1999-03-24T13:02:19+04:30",
              "utc": "1999-03-24T08:32:19Z",
              "ms": 922264339166.7087
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-03-25",
          "window": {
            "start": {
              "local": "1999-03-25T12:14:01+04:30",
              "utc": "1999-03-25T07:44:01Z",
              "ms": 922347841106.258
            },
            "end": {
              "local": "1999-03-25T13:02:01+04:30",
              "utc": "1999-03-25T08:32:01Z",
              "ms": 922350721106.258
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 03:41 on Wed 24 Mar to 02:02 on Thu 25 Mar.",
          "fact": "1999-03-23T23:11:26Z → 1999-03-24T21:31:31Z"
        },
        {
          "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": "Aṣṭamī 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: paraviddha → only-day · margin 30774 s"
        },
        {
          "step": "ruling",
          "text": "Bhavānī Utpatti, Mashhad, 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 Mashhad, Bhavānī Utpatti 1999 falls on Wednesday 24 March. Aṣṭamī runs from 03:41 on Wed 24 Mar to 02:02 on Thu 25 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/rama-navami",
      "festival": "rama-navami",
      "name": "Rāma Navamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36750,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1999-03-25T02:01:31+04:30",
          "utc": "1999-03-24T21:31:31Z",
          "ms": 922311091372.3479
        },
        "end": {
          "local": "1999-03-26T00:51:24+04:30",
          "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": "1999-03-25T02:01:31+04:30",
          "utc": "1999-03-24T21:31:31Z",
          "ms": 922311091372.3479
        },
        "end": {
          "local": "1999-03-26T00:51:24+04:30",
          "utc": "1999-03-25T20:21:24Z",
          "ms": 922393284325.9629
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-25",
          "window": {
            "start": {
              "local": "1999-03-25T12:14:01+04:30",
              "utc": "1999-03-25T07:44:01Z",
              "ms": 922347841106.258
            },
            "end": {
              "local": "1999-03-25T13:02:01+04:30",
              "utc": "1999-03-25T08:32:01Z",
              "ms": 922350721106.258
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-03-26",
          "window": {
            "start": {
              "local": "1999-03-26T12:13:43+04:30",
              "utc": "1999-03-26T07:43:43Z",
              "ms": 922434222988.1072
            },
            "end": {
              "local": "1999-03-26T13:01:43+04:30",
              "utc": "1999-03-26T08:31:43Z",
              "ms": 922437102988.1072
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 02:02 on Thu 25 Mar to 00:51 on Fri 26 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 25th, 12:14–13:02 on the 26th.",
          "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 25th and 0 of 48 on the 26th.",
          "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 36750 s"
        },
        {
          "step": "ruling",
          "text": "Rāma Navamī, Mashhad, 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 Mashhad, Rāma Navamī 1999 falls on Thursday 25 March. Navamī runs from 02:02 on Thu 25 Mar to 00:51 on Fri 26 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-03-27",
      "festival": "ekadashi",
      "name": "Kāmadā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22519,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-03-27T00:11:02+04:30",
          "utc": "1999-03-26T19:41:02Z",
          "ms": 922477262464.2339
        },
        "end": {
          "local": "1999-03-27T23:59:09+04:30",
          "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": "1999-03-27T00:11:02+04:30",
          "utc": "1999-03-26T19:41:02Z",
          "ms": 922477262464.2339
        },
        "end": {
          "local": "1999-03-27T23:59:09+04:30",
          "utc": "1999-03-27T19:29:09Z",
          "ms": 922562949335.0253
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-03-27",
          "window": {
            "start": {
              "local": "1999-03-27T06:26:21+04:30",
              "utc": "1999-03-27T01:56:21Z",
              "ms": 922499781293.3303
            },
            "end": {
              "local": "1999-03-27T06:26:21+04:30",
              "utc": "1999-03-27T01:56:21Z",
              "ms": 922499781293.3303
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-03-28",
          "window": {
            "start": {
              "local": "1999-03-28T06:24:54+04:30",
              "utc": "1999-03-28T01:54:54Z",
              "ms": 922586093857.6721
            },
            "end": {
              "local": "1999-03-28T06:24:54+04:30",
              "utc": "1999-03-28T01:54:54Z",
              "ms": 922586093857.6721
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 00:11 on Sat 27 Mar to 23:59 on Sat 27 Mar.",
          "fact": "1999-03-26T19:41:02Z → 1999-03-27T19:29:09Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:26 on the 27th and 06:25 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 22519 s"
        },
        {
          "step": "ruling",
          "text": "Kāmadā Ekādaśī, Mashhad, 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 Mashhad, Kāmadā Ekādaśī 1999 falls on Saturday 27 March. Ekādaśī runs from 00:11 on Sat 27 Mar to 23:59 on Sat 27 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ananga-trayodashi",
      "festival": "ananga-trayodashi",
      "name": "Anaṅga Trayodaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 40363,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-03-29T00:13:50+04:30",
          "utc": "1999-03-28T19:43:50Z",
          "ms": 922650229677.4553
        },
        "end": {
          "local": "1999-03-30T00:53:04+04:30",
          "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": "1999-03-29T00:13:50+04:30",
          "utc": "1999-03-28T19:43:50Z",
          "ms": 922650229677.4553
        },
        "end": {
          "local": "1999-03-30T00:53:04+04:30",
          "utc": "1999-03-29T20:23:04Z",
          "ms": 922738984108.3113
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-28",
          "window": {
            "start": {
              "local": "1999-03-28T12:13:07+04:30",
              "utc": "1999-03-28T07:43:07Z",
              "ms": 922606986666.9246
            },
            "end": {
              "local": "1999-03-28T13:01:07+04:30",
              "utc": "1999-03-28T08:31:07Z",
              "ms": 922609866666.9246
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-03-29",
          "window": {
            "start": {
              "local": "1999-03-29T12:12:49+04:30",
              "utc": "1999-03-29T07:42:49Z",
              "ms": 922693368509.2164
            },
            "end": {
              "local": "1999-03-29T13:00:49+04:30",
              "utc": "1999-03-29T08:30:49Z",
              "ms": 922696248509.2164
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 00:14 on Mon 29 Mar to 00:53 on Tue 30 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 40363 s"
        },
        {
          "step": "ruling",
          "text": "Anaṅga Trayodaśī, Mashhad, 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 Mashhad, Anaṅga Trayodaśī 1999 falls on Monday 29 March. Trayodaśī runs from 00:14 on Mon 29 Mar to 00:53 on Tue 30 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-03-29",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13917,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-03-29T00:13:50+04:30",
          "utc": "1999-03-28T19:43:50Z",
          "ms": 922650229677.4553
        },
        "end": {
          "local": "1999-03-30T00:53:04+04:30",
          "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": "1999-03-29T00:13:50+04:30",
          "utc": "1999-03-28T19:43:50Z",
          "ms": 922650229677.4553
        },
        "end": {
          "local": "1999-03-30T00:53:04+04:30",
          "utc": "1999-03-29T20:23:04Z",
          "ms": 922738984108.3113
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-03-28",
          "window": {
            "start": {
              "local": "1999-03-28T18:49:19+04:30",
              "utc": "1999-03-28T14:19:19Z",
              "ms": 922630759476.1769
            },
            "end": {
              "local": "1999-03-28T20:21:52+04:30",
              "utc": "1999-03-28T15:51:52Z",
              "ms": 922636312415.4181
            }
          },
          "covered_min": 0,
          "window_min": 93,
          "qualifies": false
        },
        {
          "local_date": "1999-03-29",
          "window": {
            "start": {
              "local": "1999-03-29T18:50:10+04:30",
              "utc": "1999-03-29T14:20:10Z",
              "ms": 922717210497.9473
            },
            "end": {
              "local": "1999-03-29T20:22:25+04:30",
              "utc": "1999-03-29T15:52:25Z",
              "ms": 922722745006.6873
            }
          },
          "covered_min": 92,
          "window_min": 92,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 00:14 on Mon 29 Mar to 00:53 on Tue 30 Mar.",
          "fact": "1999-03-28T19:43:50Z → 1999-03-29T20:23:04Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:49–20:22 on the 28th, 18:50–20:22 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 0 of 93 minutes on the 28th and 92 of 92 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 13917 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 1999: Monday 29 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": "1999-03-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-03-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 1999 falls on Monday 29 March. Trayodaśī runs from 00:14 on Mon 29 Mar to 00:53 on Tue 30 Mar and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/pradosha-vrata?on=1999-03-29",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/vishnu-damanaka-chaturdashi",
      "festival": "vishnu-damanaka-chaturdashi",
      "name": "Viṣṇudamanaka Caturdaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37020,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-03-30T00:53:04+04:30",
          "utc": "1999-03-29T20:23:04Z",
          "ms": 922738984108.3113
        },
        "end": {
          "local": "1999-03-31T01:55:12+04:30",
          "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": "1999-03-30T00:53:04+04:30",
          "utc": "1999-03-29T20:23:04Z",
          "ms": 922738984108.3113
        },
        "end": {
          "local": "1999-03-31T01:55:12+04:30",
          "utc": "1999-03-30T21:25:12Z",
          "ms": 922829111918.3032
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-30",
          "window": {
            "start": {
              "local": "1999-03-30T12:12:30+04:30",
              "utc": "1999-03-30T07:42:30Z",
              "ms": 922779750384.0685
            },
            "end": {
              "local": "1999-03-30T13:00:30+04:30",
              "utc": "1999-03-30T08:30:30Z",
              "ms": 922782630384.0685
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-03-31",
          "window": {
            "start": {
              "local": "1999-03-31T12:12:12+04:30",
              "utc": "1999-03-31T07:42:12Z",
              "ms": 922866132314.502
            },
            "end": {
              "local": "1999-03-31T13:00:12+04:30",
              "utc": "1999-03-31T08:30:12Z",
              "ms": 922869012314.502
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 00:53 on Tue 30 Mar to 01:55 on Wed 31 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 30th, 12:12–13:00 on the 31st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 30th and 0 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 37020 s"
        },
        {
          "step": "ruling",
          "text": "Viṣṇudamanaka Caturdaśī, Mashhad, 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 Mashhad, Viṣṇudamanaka Caturdaśī 1999 falls on Tuesday 30 March. Caturdaśī runs from 00:53 on Tue 30 Mar to 01:55 on Wed 31 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/chaitri-purnima",
      "festival": "chaitri-purnima",
      "name": "Caitrī Pūrṇimā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-03-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31980,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-03-31T01:55:12+04:30",
          "utc": "1999-03-30T21:25:12Z",
          "ms": 922829111918.3032
        },
        "end": {
          "local": "1999-04-01T03:18:54+04:30",
          "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": "1999-03-31T01:55:12+04:30",
          "utc": "1999-03-30T21:25:12Z",
          "ms": 922829111918.3032
        },
        "end": {
          "local": "1999-04-01T03:18:54+04:30",
          "utc": "1999-03-31T22:48:54Z",
          "ms": 922920534019.6964
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-03-31",
          "window": {
            "start": {
              "local": "1999-03-31T12:12:12+04:30",
              "utc": "1999-03-31T07:42:12Z",
              "ms": 922866132314.502
            },
            "end": {
              "local": "1999-03-31T13:00:12+04:30",
              "utc": "1999-03-31T08:30:12Z",
              "ms": 922869012314.502
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-04-01",
          "window": {
            "start": {
              "local": "1999-04-01T12:11:54+04:30",
              "utc": "1999-04-01T07:41:54Z",
              "ms": 922952514323.4622
            },
            "end": {
              "local": "1999-04-01T12:59:54+04:30",
              "utc": "1999-04-01T08:29:54Z",
              "ms": 922955394323.4622
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 01:55 on Wed 31 Mar to 03:19 on Thu 1 Apr.",
          "fact": "1999-03-30T21:25:12Z → 1999-03-31T22:48:54Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 31st, 12:12–13:00 on the 1st.",
          "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 31st and 0 of 48 on the 1st.",
          "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 31980 s"
        },
        {
          "step": "ruling",
          "text": "Caitrī Pūrṇimā, Mashhad, 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 Mashhad, Caitrī Pūrṇimā 1999 falls on Wednesday 31 March. Pūrṇimā runs from 01:55 on Wed 31 Mar to 03:19 on Thu 1 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-04-04",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 40322,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-04-04T09:22:40+04:30",
          "utc": "1999-04-04T04:52:40Z",
          "ms": 923201559955.4751
        },
        "end": {
          "local": "1999-04-05T11:49:31+04:30",
          "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": "1999-04-04T09:22:40+04:30",
          "utc": "1999-04-04T04:52:40Z",
          "ms": 923201559955.4751
        },
        "end": {
          "local": "1999-04-05T11:49:31+04:30",
          "utc": "1999-04-05T07:19:31Z",
          "ms": 923296771444.4219
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-04-04",
          "window": {
            "start": {
              "local": "1999-04-04T22:07:28+04:30",
              "utc": "1999-04-04T17:37:28Z",
              "ms": 923247447820.0695
            },
            "end": {
              "local": "1999-04-04T22:07:28+04:30",
              "utc": "1999-04-04T17:37:28Z",
              "ms": 923247447820.0695
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-04-05",
          "window": {
            "start": {
              "local": "1999-04-05T23:01:33+04:30",
              "utc": "1999-04-05T18:31:33Z",
              "ms": 923337093090.8123
            },
            "end": {
              "local": "1999-04-05T23:01:33+04:30",
              "utc": "1999-04-05T18:31:33Z",
              "ms": 923337093090.8123
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 09:23 on Sun 4 Apr to 11:50 on Mon 5 Apr.",
          "fact": "1999-04-04T04:52:40Z → 1999-04-05T07:19:31Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:07 on the 4th and 23:02 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 40322 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 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 Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Sunday 4 April. Caturthī runs from 09:23 on Sun 4 Apr to 11:50 on Mon 5 Apr and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-04-12",
      "festival": "ekadashi",
      "name": "Varūthinī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34264,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-04-11T20:32:28+04:30",
          "utc": "1999-04-11T16:02:28Z",
          "ms": 923846548103.4663
        },
        "end": {
          "local": "1999-04-12T19:34:56+04:30",
          "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": "1999-04-11T20:32:28+04:30",
          "utc": "1999-04-11T16:02:28Z",
          "ms": 923846548103.4663
        },
        "end": {
          "local": "1999-04-12T19:34:56+04:30",
          "utc": "1999-04-12T15:04:56Z",
          "ms": 923929496182.1204
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-04-12",
          "window": {
            "start": {
              "local": "1999-04-12T06:03:32+04:30",
              "utc": "1999-04-12T01:33:32Z",
              "ms": 923880811705.015
            },
            "end": {
              "local": "1999-04-12T06:03:32+04:30",
              "utc": "1999-04-12T01:33:32Z",
              "ms": 923880811705.015
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-04-13",
          "window": {
            "start": {
              "local": "1999-04-13T06:02:10+04:30",
              "utc": "1999-04-13T01:32:10Z",
              "ms": 923967129575.8666
            },
            "end": {
              "local": "1999-04-13T06:02:10+04:30",
              "utc": "1999-04-13T01:32:10Z",
              "ms": 923967129575.8666
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 20:32 on Sun 11 Apr to 19:35 on Mon 12 Apr.",
          "fact": "1999-04-11T16:02:28Z → 1999-04-12T15:04:56Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:04 on the 12th and 06:02 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 not on the 13th.",
          "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 34264 s"
        },
        {
          "step": "ruling",
          "text": "Varūthinī Ekādaśī, Mashhad, 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 Mashhad, Varūthinī Ekādaśī 1999 falls on Monday 12 April. Ekādaśī runs from 20:32 on Sun 11 Apr to 19:35 on Mon 12 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-04-13",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4423,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-04-13T17:49:12+04:30",
          "utc": "1999-04-13T13:19:12Z",
          "ms": 924009552400.8271
        },
        "end": {
          "local": "1999-04-14T15:20:59+04:30",
          "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": "1999-04-13T17:49:12+04:30",
          "utc": "1999-04-13T13:19:12Z",
          "ms": 924009552400.8271
        },
        "end": {
          "local": "1999-04-14T15:20:59+04:30",
          "utc": "1999-04-14T10:50:59Z",
          "ms": 924087059491.6364
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-04-13",
          "window": {
            "start": {
              "local": "1999-04-13T19:02:55+04:30",
              "utc": "1999-04-13T14:32:55Z",
              "ms": 924013974914.562
            },
            "end": {
              "local": "1999-04-13T20:30:38+04:30",
              "utc": "1999-04-13T16:00:38Z",
              "ms": 924019237996.7285
            }
          },
          "covered_min": 88,
          "window_min": 88,
          "qualifies": true
        },
        {
          "local_date": "1999-04-14",
          "window": {
            "start": {
              "local": "1999-04-14T19:03:46+04:30",
              "utc": "1999-04-14T14:33:46Z",
              "ms": 924100426216.1581
            },
            "end": {
              "local": "1999-04-14T20:31:12+04:30",
              "utc": "1999-04-14T16:01:12Z",
              "ms": 924105671666.8501
            }
          },
          "covered_min": 0,
          "window_min": 87,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 17:49 on Tue 13 Apr to 15:21 on Wed 14 Apr.",
          "fact": "1999-04-13T13:19:12Z → 1999-04-14T10:50:59Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:03–20:31 on the 13th, 19:04–20:31 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 88 of 88 minutes on the 13th and 0 of 87 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 4423 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 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 Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Tuesday 13 April. Trayodaśī runs from 17:49 on Tue 13 Apr to 15:21 on Wed 14 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vaishakhi",
      "festival": "vaishakhi",
      "name": "Vaiśākhī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15338,
      "anga": {
        "type": "sankranti",
        "index": 0,
        "key": "mesha",
        "name": "Meṣa",
        "start": {
          "local": "1999-04-14T10:16:26+04:30",
          "utc": "1999-04-14T05:46:26Z",
          "ms": 924068786444.1335
        },
        "end": {
          "local": "1999-05-15T07:04:39+04:30",
          "utc": "1999-05-15T02:34:39Z",
          "ms": 926735679078.3916
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "1999-04-14T10:16:26+04:30",
          "utc": "1999-04-14T05:46:26Z",
          "ms": 924068786444.1335
        },
        "end": {
          "local": "1999-04-14T10:16:26+04:30",
          "utc": "1999-04-14T05:46:26Z",
          "ms": 924068786444.1335
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "1999-04-13",
          "window": {
            "start": {
              "local": "1999-04-13T06:02:10+04:30",
              "utc": "1999-04-13T01:32:10Z",
              "ms": 923967129575.8666
            },
            "end": {
              "local": "1999-04-14T06:00:48+04:30",
              "utc": "1999-04-14T01:30:48Z",
              "ms": 924053448030.811
            }
          },
          "covered_min": 0,
          "window_min": 1439,
          "qualifies": false
        },
        {
          "local_date": "1999-04-14",
          "window": {
            "start": {
              "local": "1999-04-14T06:00:48+04:30",
              "utc": "1999-04-14T01:30:48Z",
              "ms": 924053448030.811
            },
            "end": {
              "local": "1999-04-15T05:59:27+04:30",
              "utc": "1999-04-15T01:29:27Z",
              "ms": 924139767096.3481
            }
          },
          "covered_min": 1,
          "window_min": 1439,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Meṣa at 10:16 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 06:02 on the 13th, and from 06:01 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 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 sunrise → only-day · margin 15338 s"
        },
        {
          "step": "ruling",
          "text": "Vaiśākhī, Mashhad, 1999: Wednesday 14 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": "1999-04-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-14",
          "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 Mashhad, Vaiśākhī 1999 falls on Wednesday 14 April. The Sun enters Meṣa at 10:16 on Wed 14 Apr, and the rule counts the day from sunrise.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shivaratri?on=1999-04-14",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31597,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-04-14T15:20:59+04:30",
          "utc": "1999-04-14T10:50:59Z",
          "ms": 924087059491.6364
        },
        "end": {
          "local": "1999-04-15T12:18:33+04:30",
          "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": "1999-04-14T15:20:59+04:30",
          "utc": "1999-04-14T10:50:59Z",
          "ms": 924087059491.6364
        },
        "end": {
          "local": "1999-04-15T12:18:33+04:30",
          "utc": "1999-04-15T07:48:33Z",
          "ms": 924162512668.9152
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-04-14",
          "window": {
            "start": {
              "local": "1999-04-15T00:07:37+04:30",
              "utc": "1999-04-14T19:37:37Z",
              "ms": 924118656656.2532
            },
            "end": {
              "local": "1999-04-15T00:55:37+04:30",
              "utc": "1999-04-14T20:25:37Z",
              "ms": 924121536656.2532
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-04-15",
          "window": {
            "start": {
              "local": "1999-04-16T00:07:22+04:30",
              "utc": "1999-04-15T19:37:22Z",
              "ms": 924205042188.4287
            },
            "end": {
              "local": "1999-04-16T00:55:22+04:30",
              "utc": "1999-04-15T20:25:22Z",
              "ms": 924207922188.4287
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 15:21 on Wed 14 Apr to 12:19 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 14th, 00:07–00:55 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 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 night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 31597 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 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 Mashhad, Śivarātri 1999 falls on Wednesday 14 April. Caturdaśī runs from 15:21 on Wed 14 Apr to 12:19 on Thu 15 Apr and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/akshaya-tritiya",
      "festival": "akshaya-tritiya",
      "name": "Akṣaya Tṛtīyā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15994,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-04-18T01:28:54+04:30",
          "utc": "1999-04-17T20:58:54Z",
          "ms": 924382734367.4559
        },
        "end": {
          "local": "1999-04-18T21:54:47+04:30",
          "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": "1999-04-18T01:28:54+04:30",
          "utc": "1999-04-17T20:58:54Z",
          "ms": 924382734367.4559
        },
        "end": {
          "local": "1999-04-18T21:54:47+04:30",
          "utc": "1999-04-18T17:24:47Z",
          "ms": 924456287304.1661
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "1999-04-18",
          "window": {
            "start": {
              "local": "1999-04-18T05:55:28+04:30",
              "utc": "1999-04-18T01:25:28Z",
              "ms": 924398728209.6152
            },
            "end": {
              "local": "1999-04-18T10:19:23+04:30",
              "utc": "1999-04-18T05:49:23Z",
              "ms": 924414562802.2391
            }
          },
          "covered_min": 264,
          "window_min": 264,
          "qualifies": true
        },
        {
          "local_date": "1999-04-19",
          "window": {
            "start": {
              "local": "1999-04-19T05:54:10+04:30",
              "utc": "1999-04-19T01:24:10Z",
              "ms": 924485049969.5431
            },
            "end": {
              "local": "1999-04-19T10:18:48+04:30",
              "utc": "1999-04-19T05:48:48Z",
              "ms": 924500927827.5043
            }
          },
          "covered_min": 0,
          "window_min": 265,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 01:29 on Sun 18 Apr to 21:55 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: 05:55–10:19 on the 18th, 05:54–10:19 on the 19th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 264 of 264 minutes on the 18th and 0 of 265 on the 19th.",
          "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 15994 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Tṛtīyā, Mashhad, 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 Mashhad, Akṣaya Tṛtīyā 1999 falls on Sunday 18 April. Tṛtīyā runs from 01:29 on Sun 18 Apr to 21:55 on Sun 18 Apr and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/parashurama-jayanti",
      "festival": "parashurama-jayanti",
      "name": "Paraśurāma Jayantī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4880,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-04-18T01:28:54+04:30",
          "utc": "1999-04-17T20:58:54Z",
          "ms": 924382734367.4559
        },
        "end": {
          "local": "1999-04-18T21:54:47+04:30",
          "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": "1999-04-18T01:28:54+04:30",
          "utc": "1999-04-17T20:58:54Z",
          "ms": 924382734367.4559
        },
        "end": {
          "local": "1999-04-18T21:54:47+04:30",
          "utc": "1999-04-18T17:24:47Z",
          "ms": 924456287304.1661
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-04-17",
          "window": {
            "start": {
              "local": "1999-04-17T19:06:20+04:30",
              "utc": "1999-04-17T14:36:20Z",
              "ms": 924359780470.2802
            },
            "end": {
              "local": "1999-04-17T20:32:54+04:30",
              "utc": "1999-04-17T16:02:54Z",
              "ms": 924364973502.1915
            }
          },
          "covered_min": 0,
          "window_min": 87,
          "qualifies": false
        },
        {
          "local_date": "1999-04-18",
          "window": {
            "start": {
              "local": "1999-04-18T19:07:12+04:30",
              "utc": "1999-04-18T14:37:12Z",
              "ms": 924446231987.487
            },
            "end": {
              "local": "1999-04-18T20:33:28+04:30",
              "utc": "1999-04-18T16:03:28Z",
              "ms": 924451407718.4279
            }
          },
          "covered_min": 86,
          "window_min": 86,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 01:29 on Sun 18 Apr to 21:55 on Sun 18 Apr.",
          "fact": "1999-04-17T20:58:54Z → 1999-04-18T17:24:47Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:06–20:33 on the 17th, 19:07–20:33 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 0 of 87 minutes on the 17th and 86 of 86 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 4880 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Jayantī, Mashhad, 1999: Sunday 18 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": "1999-04-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Paraśurāma Jayantī 1999 falls on Sunday 18 April. Tṛtīyā runs from 01:29 on Sun 18 Apr to 21:55 on Sun 18 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-04-19",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20652,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-04-18T21:54:47+04:30",
          "utc": "1999-04-18T17:24:47Z",
          "ms": 924456287304.1661
        },
        "end": {
          "local": "1999-04-19T18:39:18+04:30",
          "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": "1999-04-18T21:54:47+04:30",
          "utc": "1999-04-18T17:24:47Z",
          "ms": 924456287304.1661
        },
        "end": {
          "local": "1999-04-19T18:39:18+04:30",
          "utc": "1999-04-19T14:09:18Z",
          "ms": 924530958459.5343
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-18",
          "window": {
            "start": {
              "local": "1999-04-18T12:07:20+04:30",
              "utc": "1999-04-18T07:37:20Z",
              "ms": 924421040098.5511
            },
            "end": {
              "local": "1999-04-18T12:55:20+04:30",
              "utc": "1999-04-18T08:25:20Z",
              "ms": 924423920098.5511
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-04-19",
          "window": {
            "start": {
              "local": "1999-04-19T12:07:07+04:30",
              "utc": "1999-04-19T07:37:07Z",
              "ms": 924507426756.4849
            },
            "end": {
              "local": "1999-04-19T12:55:07+04:30",
              "utc": "1999-04-19T08:25:07Z",
              "ms": 924510306756.4849
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 21:55 on Sun 18 Apr to 18:39 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 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 20652 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 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": "1999-04-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 1999 falls on Monday 19 April. Caturthī runs from 21:55 on Sun 18 Apr to 18:39 on Mon 19 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shankara-jayanti",
      "festival": "shankara-jayanti",
      "name": "Śaṅkara Jayantī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10585,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-04-19T18:39:18+04:30",
          "utc": "1999-04-19T14:09:18Z",
          "ms": 924530958459.5343
        },
        "end": {
          "local": "1999-04-20T15:51:19+04:30",
          "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": "1999-04-19T18:39:18+04:30",
          "utc": "1999-04-19T14:09:18Z",
          "ms": 924530958459.5343
        },
        "end": {
          "local": "1999-04-20T15:51:19+04:30",
          "utc": "1999-04-20T11:21:19Z",
          "ms": 924607278703.6344
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-19",
          "window": {
            "start": {
              "local": "1999-04-19T12:07:07+04:30",
              "utc": "1999-04-19T07:37:07Z",
              "ms": 924507426756.4849
            },
            "end": {
              "local": "1999-04-19T12:55:07+04:30",
              "utc": "1999-04-19T08:25:07Z",
              "ms": 924510306756.4849
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-04-20",
          "window": {
            "start": {
              "local": "1999-04-20T12:06:54+04:30",
              "utc": "1999-04-20T07:36:54Z",
              "ms": 924593813799.1172
            },
            "end": {
              "local": "1999-04-20T12:54:54+04:30",
              "utc": "1999-04-20T08:24:54Z",
              "ms": 924596693799.1172
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 18:39 on Mon 19 Apr to 15:51 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 0 of 48 minutes on the 19th and 48 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 10585 s"
        },
        {
          "step": "ruling",
          "text": "Śaṅkara Jayantī, Mashhad, 1999: Tuesday 20 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": "1999-04-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śaṅkara Jayantī 1999 falls on Tuesday 20 April. Pañcamī runs from 18:39 on Mon 19 Apr to 15:51 on Tue 20 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/gangotpatti",
      "festival": "gangotpatti",
      "name": "Gaṅgotpatti",
      "everyday": "Ganga Saptami",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-22",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 186,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-04-21T13:37:48+04:30",
          "utc": "1999-04-21T09:07:48Z",
          "ms": 924685667952.3691
        },
        "end": {
          "local": "1999-04-22T12:03:23+04:30",
          "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": "1999-04-21T13:37:48+04:30",
          "utc": "1999-04-21T09:07:48Z",
          "ms": 924685667952.3691
        },
        "end": {
          "local": "1999-04-22T12:03:23+04:30",
          "utc": "1999-04-22T07:33:23Z",
          "ms": 924766403050.3668
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-21",
          "window": {
            "start": {
              "local": "1999-04-21T12:06:41+04:30",
              "utc": "1999-04-21T07:36:41Z",
              "ms": 924680201237.0022
            },
            "end": {
              "local": "1999-04-21T12:54:41+04:30",
              "utc": "1999-04-21T08:24:41Z",
              "ms": 924683081237.0022
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-04-22",
          "window": {
            "start": {
              "local": "1999-04-22T12:06:29+04:30",
              "utc": "1999-04-22T07:36:29Z",
              "ms": 924766589081.5823
            },
            "end": {
              "local": "1999-04-22T12:54:29+04:30",
              "utc": "1999-04-22T08:24:29Z",
              "ms": 924769469081.5823
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 13:38 on Wed 21 Apr to 12:03 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, 12:06–12:54 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 0 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": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: purvaviddha → second-day · margin 186 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Gaṅgotpatti, Mashhad, 1999: Thursday 22 April.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "1999-04-22",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Gaṅgotpatti (Ganga Saptami) 1999 falls on Thursday 22 April. Saptamī runs from 13:38 on Wed 21 Apr to 12:03 on Thu 22 Apr, and reaches madhyāhna on neither day. It is 3 min 06 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-04-26",
      "festival": "ekadashi",
      "name": "Mohinī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19981,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-04-25T11:19:38+04:30",
          "utc": "1999-04-25T06:49:38Z",
          "ms": 925022977945.3748
        },
        "end": {
          "local": "1999-04-26T12:14:26+04:30",
          "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": "1999-04-25T11:19:38+04:30",
          "utc": "1999-04-25T06:49:38Z",
          "ms": 925022977945.3748
        },
        "end": {
          "local": "1999-04-26T12:14:26+04:30",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-04-25",
          "window": {
            "start": {
              "local": "1999-04-25T05:46:37+04:30",
              "utc": "1999-04-25T01:16:37Z",
              "ms": 925002997006.5924
            },
            "end": {
              "local": "1999-04-25T05:46:37+04:30",
              "utc": "1999-04-25T01:16:37Z",
              "ms": 925002997006.5924
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-04-26",
          "window": {
            "start": {
              "local": "1999-04-26T05:45:25+04:30",
              "utc": "1999-04-26T01:15:25Z",
              "ms": 925089324533.8313
            },
            "end": {
              "local": "1999-04-26T05:45:25+04:30",
              "utc": "1999-04-26T01:15:25Z",
              "ms": 925089324533.8313
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 11:20 on Sun 25 Apr to 12:14 on Mon 26 Apr.",
          "fact": "1999-04-25T06:49:38Z → 1999-04-26T07:44:26Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:47 on the 25th and 05:45 on the 26th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 25th and is 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 19981 s"
        },
        {
          "step": "ruling",
          "text": "Mohinī Ekādaśī, Mashhad, 1999: Monday 26 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": "1999-04-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mohinī Ekādaśī 1999 falls on Monday 26 April. Ekādaśī runs from 11:20 on Sun 25 Apr to 12:14 on Mon 26 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/ekadashi?on=1999-04-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/parashurama-dvadashi",
      "festival": "parashurama-dvadashi",
      "name": "Paraśurāma Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 521,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-04-26T12:14:26+04:30",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        },
        "end": {
          "local": "1999-04-27T13:35:15+04:30",
          "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": "1999-04-26T12:14:26+04:30",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        },
        "end": {
          "local": "1999-04-27T13:35:15+04:30",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-26",
          "window": {
            "start": {
              "local": "1999-04-26T12:05:45+04:30",
              "utc": "1999-04-26T07:35:45Z",
              "ms": 925112144777.5093
            },
            "end": {
              "local": "1999-04-26T12:53:45+04:30",
              "utc": "1999-04-26T08:23:45Z",
              "ms": 925115024777.5093
            }
          },
          "covered_min": 39,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-04-27",
          "window": {
            "start": {
              "local": "1999-04-27T12:05:35+04:30",
              "utc": "1999-04-27T07:35:35Z",
              "ms": 925198534845.831
            },
            "end": {
              "local": "1999-04-27T12:53:35+04:30",
              "utc": "1999-04-27T08:23:35Z",
              "ms": 925201414845.831
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 12:14 on Mon 26 Apr to 13:35 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 39 of 48 minutes on the 26th and 48 of 48 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Pūrvaviddhā: the first is taken.",
          "fact": "priority: purvaviddha → purvaviddha · margin 521 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Dvādaśī, Mashhad, 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 Mashhad, Paraśurāma Dvādaśī 1999 falls on Monday 26 April. Dvādaśī runs from 12:14 on Mon 26 Apr to 13:35 on Tue 27 Apr and covers 39 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/rukmini-dvadashi",
      "festival": "rukmini-dvadashi",
      "name": "Rukmiṇī Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 521,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-04-26T12:14:26+04:30",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        },
        "end": {
          "local": "1999-04-27T13:35:15+04:30",
          "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": "1999-04-26T12:14:26+04:30",
          "utc": "1999-04-26T07:44:26Z",
          "ms": 925112666075.5696
        },
        "end": {
          "local": "1999-04-27T13:35:15+04:30",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-26",
          "window": {
            "start": {
              "local": "1999-04-26T12:05:45+04:30",
              "utc": "1999-04-26T07:35:45Z",
              "ms": 925112144777.5093
            },
            "end": {
              "local": "1999-04-26T12:53:45+04:30",
              "utc": "1999-04-26T08:23:45Z",
              "ms": 925115024777.5093
            }
          },
          "covered_min": 39,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-04-27",
          "window": {
            "start": {
              "local": "1999-04-27T12:05:35+04:30",
              "utc": "1999-04-27T07:35:35Z",
              "ms": 925198534845.831
            },
            "end": {
              "local": "1999-04-27T12:53:35+04:30",
              "utc": "1999-04-27T08:23:35Z",
              "ms": 925201414845.831
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 12:14 on Mon 26 Apr to 13:35 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 39 of 48 minutes on the 26th and 48 of 48 on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Pūrvaviddhā: the first is taken.",
          "fact": "priority: purvaviddha → purvaviddha · margin 521 s"
        },
        {
          "step": "ruling",
          "text": "Rukmiṇī Dvādaśī, Mashhad, 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 Mashhad, Rukmiṇī Dvādaśī 1999 falls on Monday 26 April. Dvādaśī runs from 12:14 on Mon 26 Apr to 13:35 on Tue 27 Apr and covers 39 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-04-27",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14343,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-04-27T13:35:15+04:30",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        },
        "end": {
          "local": "1999-04-28T15:16:45+04:30",
          "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": "1999-04-27T13:35:15+04:30",
          "utc": "1999-04-27T09:05:15Z",
          "ms": 925203915136.0061
        },
        "end": {
          "local": "1999-04-28T15:16:45+04:30",
          "utc": "1999-04-28T10:46:45Z",
          "ms": 925296405278.0532
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-04-27",
          "window": {
            "start": {
              "local": "1999-04-27T19:14:57+04:30",
              "utc": "1999-04-27T14:44:57Z",
              "ms": 925224296686.2207
            },
            "end": {
              "local": "1999-04-27T20:38:41+04:30",
              "utc": "1999-04-27T16:08:41Z",
              "ms": 925229321455.0155
            }
          },
          "covered_min": 84,
          "window_min": 84,
          "qualifies": true
        },
        {
          "local_date": "1999-04-28",
          "window": {
            "start": {
              "local": "1999-04-28T19:15:48+04:30",
              "utc": "1999-04-28T14:45:48Z",
              "ms": 925310748343.1628
            },
            "end": {
              "local": "1999-04-28T20:39:17+04:30",
              "utc": "1999-04-28T16:09:17Z",
              "ms": 925315756951.375
            }
          },
          "covered_min": 0,
          "window_min": 83,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 13:35 on Tue 27 Apr to 15:17 on Wed 28 Apr.",
          "fact": "1999-04-27T09:05:15Z → 1999-04-28T10:46:45Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:15–20:39 on the 27th, 19:16–20:39 on the 28th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 84 of 84 minutes on the 27th and 0 of 83 on the 28th.",
          "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 14343 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 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 Mashhad, Śukla Pradoṣa Vrata 1999 falls on Tuesday 27 April. Trayodaśī runs from 13:35 on Tue 27 Apr to 15:17 on Wed 28 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/nrisimha-chaturdashi",
      "festival": "nrisimha-chaturdashi",
      "name": "Nṛsiṃha Caturdaśī",
      "everyday": "Narasimha Jayanti",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7334,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-04-28T15:16:45+04:30",
          "utc": "1999-04-28T10:46:45Z",
          "ms": 925296405278.0532
        },
        "end": {
          "local": "1999-04-29T17:14:26+04:30",
          "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": "1999-04-28T15:16:45+04:30",
          "utc": "1999-04-28T10:46:45Z",
          "ms": 925296405278.0532
        },
        "end": {
          "local": "1999-04-29T17:14:26+04:30",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-04-28",
          "window": {
            "start": {
              "local": "1999-04-28T19:15:48+04:30",
              "utc": "1999-04-28T14:45:48Z",
              "ms": 925310748343.1628
            },
            "end": {
              "local": "1999-04-28T20:39:17+04:30",
              "utc": "1999-04-28T16:09:17Z",
              "ms": 925315756951.375
            }
          },
          "covered_min": 83,
          "window_min": 83,
          "qualifies": true
        },
        {
          "local_date": "1999-04-29",
          "window": {
            "start": {
              "local": "1999-04-29T19:16:40+04:30",
              "utc": "1999-04-29T14:46:40Z",
              "ms": 925397199986.0303
            },
            "end": {
              "local": "1999-04-29T20:39:53+04:30",
              "utc": "1999-04-29T16:09:53Z",
              "ms": 925402192573.7273
            }
          },
          "covered_min": 0,
          "window_min": 83,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 15:17 on Wed 28 Apr to 17:14 on Thu 29 Apr.",
          "fact": "1999-04-28T10:46:45Z → 1999-04-29T12:44:26Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:16–20:39 on the 28th, 19:17–20:40 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 83 of 83 minutes on the 28th and 0 of 83 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 7334 s"
        },
        {
          "step": "ruling",
          "text": "Nṛsiṃha Caturdaśī, Mashhad, 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 Mashhad, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1999 falls on Wednesday 28 April. Caturdaśī runs from 15:17 on Wed 28 Apr to 17:14 on Thu 29 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/buddha-purnima",
      "festival": "buddha-purnima",
      "name": "Buddha Pūrṇimā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15669,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-04-29T17:14:26+04:30",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        },
        "end": {
          "local": "1999-04-30T19:24:36+04:30",
          "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": "1999-04-29T17:14:26+04:30",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        },
        "end": {
          "local": "1999-04-30T19:24:36+04:30",
          "utc": "1999-04-30T14:54:36Z",
          "ms": 925484075789.7118
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-29",
          "window": {
            "start": {
              "local": "1999-04-29T12:05:16+04:30",
              "utc": "1999-04-29T07:35:16Z",
              "ms": 925371316445.3923
            },
            "end": {
              "local": "1999-04-29T12:53:16+04:30",
              "utc": "1999-04-29T08:23:16Z",
              "ms": 925374196445.3923
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-04-30",
          "window": {
            "start": {
              "local": "1999-04-30T12:05:08+04:30",
              "utc": "1999-04-30T07:35:08Z",
              "ms": 925457708000.8503
            },
            "end": {
              "local": "1999-04-30T12:53:08+04:30",
              "utc": "1999-04-30T08:23:08Z",
              "ms": 925460588000.8503
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 17:14 on Thu 29 Apr to 19:25 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 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: unstated → only-day · margin 15669 s"
        },
        {
          "step": "ruling",
          "text": "Buddha Pūrṇimā, Mashhad, 1999: Friday 30 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": "1999-04-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Buddha Pūrṇimā 1999 falls on Friday 30 April. Pūrṇimā runs from 17:14 on Thu 29 Apr to 19:25 on Fri 30 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sampat-gauri-vrata",
      "festival": "sampat-gauri-vrata",
      "name": "Sampat Gaurī Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-04-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15669,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-04-29T17:14:26+04:30",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        },
        "end": {
          "local": "1999-04-30T19:24:36+04:30",
          "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": "1999-04-29T17:14:26+04:30",
          "utc": "1999-04-29T12:44:26Z",
          "ms": 925389865707.7272
        },
        "end": {
          "local": "1999-04-30T19:24:36+04:30",
          "utc": "1999-04-30T14:54:36Z",
          "ms": 925484075789.7118
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-04-29",
          "window": {
            "start": {
              "local": "1999-04-29T12:05:16+04:30",
              "utc": "1999-04-29T07:35:16Z",
              "ms": 925371316445.3923
            },
            "end": {
              "local": "1999-04-29T12:53:16+04:30",
              "utc": "1999-04-29T08:23:16Z",
              "ms": 925374196445.3923
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-04-30",
          "window": {
            "start": {
              "local": "1999-04-30T12:05:08+04:30",
              "utc": "1999-04-30T07:35:08Z",
              "ms": 925457708000.8503
            },
            "end": {
              "local": "1999-04-30T12:53:08+04:30",
              "utc": "1999-04-30T08:23:08Z",
              "ms": 925460588000.8503
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 17:14 on Thu 29 Apr to 19:25 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 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 15669 s"
        },
        {
          "step": "ruling",
          "text": "Sampat Gaurī Vrata, Mashhad, 1999: Friday 30 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": "1999-04-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-04-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Sampat Gaurī Vrata 1999 falls on Friday 30 April. Pūrṇimā runs from 17:14 on Thu 29 Apr to 19:25 on Fri 30 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-05-04",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-05-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17079,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-05-04T02:34:11+04:30",
          "utc": "1999-05-03T22:04:11Z",
          "ms": 925769050729.3442
        },
        "end": {
          "local": "1999-05-05T04:53:20+04:30",
          "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": "1999-05-04T02:34:11+04:30",
          "utc": "1999-05-03T22:04:11Z",
          "ms": 925769050729.3442
        },
        "end": {
          "local": "1999-05-05T04:53:20+04:30",
          "utc": "1999-05-05T00:23:20Z",
          "ms": 925863799772.3925
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-05-03",
          "window": {
            "start": {
              "local": "1999-05-03T21:49:31+04:30",
              "utc": "1999-05-03T17:19:31Z",
              "ms": 925751971350.7678
            },
            "end": {
              "local": "1999-05-03T21:49:31+04:30",
              "utc": "1999-05-03T17:19:31Z",
              "ms": 925751971350.7678
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-05-04",
          "window": {
            "start": {
              "local": "1999-05-04T22:41:36+04:30",
              "utc": "1999-05-04T18:11:36Z",
              "ms": 925841496493.4097
            },
            "end": {
              "local": "1999-05-04T22:41:36+04:30",
              "utc": "1999-05-04T18:11:36Z",
              "ms": 925841496493.4097
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 02:34 on Tue 4 May to 04:53 on Wed 5 May.",
          "fact": "1999-05-03T22:04:11Z → 1999-05-05T00:23:20Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:50 on the 3rd and 22:42 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 17079 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 1999: Tuesday 4 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": "1999-05-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Tuesday 4 May. Caturthī runs from 02:34 on Tue 4 May to 04:53 on Wed 5 May and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/sankashta-chaturthi?on=1999-05-04",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/ekadashi?on=1999-05-12",
      "festival": "ekadashi",
      "name": "Aparā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-05-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2923,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-05-11T08:20:59+04:30",
          "utc": "1999-05-11T03:50:59Z",
          "ms": 926394658927.4991
        },
        "end": {
          "local": "1999-05-12T06:17:17+04:30",
          "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": "1999-05-11T08:20:59+04:30",
          "utc": "1999-05-11T03:50:59Z",
          "ms": 926394658927.4991
        },
        "end": {
          "local": "1999-05-12T06:17:17+04:30",
          "utc": "1999-05-12T01:47:17Z",
          "ms": 926473636772.6238
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-05-11",
          "window": {
            "start": {
              "local": "1999-05-11T05:29:28+04:30",
              "utc": "1999-05-11T00:59:28Z",
              "ms": 926384367677.3221
            },
            "end": {
              "local": "1999-05-11T05:29:28+04:30",
              "utc": "1999-05-11T00:59:28Z",
              "ms": 926384367677.3221
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-05-12",
          "window": {
            "start": {
              "local": "1999-05-12T05:28:34+04:30",
              "utc": "1999-05-12T00:58:34Z",
              "ms": 926470713882.9094
            },
            "end": {
              "local": "1999-05-12T05:28:34+04:30",
              "utc": "1999-05-12T00:58:34Z",
              "ms": 926470713882.9094
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 08:21 on Tue 11 May to 06:17 on Wed 12 May.",
          "fact": "1999-05-11T03:50:59Z → 1999-05-12T01:47:17Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:29 on the 11th and 05:29 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 2923 s"
        },
        {
          "step": "ruling",
          "text": "Aparā Ekādaśī, Mashhad, 1999: Wednesday 12 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": "1999-05-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Aparā Ekādaśī 1999 falls on Wednesday 12 May. Ekādaśī runs from 08:21 on Tue 11 May to 06:17 on Wed 12 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/ekadashi?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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-05-13",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-05-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12260,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-05-13T03:31:46+04:30",
          "utc": "1999-05-12T23:01:46Z",
          "ms": 926550105999.507
        },
        "end": {
          "local": "1999-05-14T00:12:42+04:30",
          "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": "1999-05-13T03:31:46+04:30",
          "utc": "1999-05-12T23:01:46Z",
          "ms": 926550105999.507
        },
        "end": {
          "local": "1999-05-14T00:12:42+04:30",
          "utc": "1999-05-13T19:42:42Z",
          "ms": 926624561785.8661
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-05-12",
          "window": {
            "start": {
              "local": "1999-05-12T19:27:45+04:30",
              "utc": "1999-05-12T14:57:45Z",
              "ms": 926521065203.3947
            },
            "end": {
              "local": "1999-05-12T20:47:45+04:30",
              "utc": "1999-05-12T16:17:45Z",
              "ms": 926525864707.8485
            }
          },
          "covered_min": 0,
          "window_min": 80,
          "qualifies": false
        },
        {
          "local_date": "1999-05-13",
          "window": {
            "start": {
              "local": "1999-05-13T19:28:35+04:30",
              "utc": "1999-05-13T14:58:35Z",
              "ms": 926607515319.6565
            },
            "end": {
              "local": "1999-05-13T20:48:21+04:30",
              "utc": "1999-05-13T16:18:21Z",
              "ms": 926612301345.0238
            }
          },
          "covered_min": 80,
          "window_min": 80,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 03:32 on Thu 13 May to 00:13 on Fri 14 May.",
          "fact": "1999-05-12T23:01:46Z → 1999-05-13T19:42:42Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:28–20:48 on the 12th, 19:29–20:48 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 80 minutes on the 12th and 80 of 80 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 12260 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1999: Thursday 13 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": "1999-05-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Thursday 13 May. Trayodaśī runs from 03:32 on Thu 13 May to 00:13 on Fri 14 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/pradosha-vrata?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": "/mashhad/festivals/1999/shivaratri?on=1999-05-13",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-05-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 539,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-05-14T00:12:42+04:30",
          "utc": "1999-05-13T19:42:42Z",
          "ms": 926624561785.8661
        },
        "end": {
          "local": "1999-05-14T20:30:05+04:30",
          "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": "1999-05-14T00:12:42+04:30",
          "utc": "1999-05-13T19:42:42Z",
          "ms": 926624561785.8661
        },
        "end": {
          "local": "1999-05-14T20:30:05+04:30",
          "utc": "1999-05-14T16:00:05Z",
          "ms": 926697605337.1274
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-05-13",
          "window": {
            "start": {
              "local": "1999-05-14T00:03:43+04:30",
              "utc": "1999-05-13T19:33:43Z",
              "ms": 926624022914.7839
            },
            "end": {
              "local": "1999-05-14T00:51:43+04:30",
              "utc": "1999-05-13T20:21:43Z",
              "ms": 926626902914.7839
            }
          },
          "covered_min": 39,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-05-14",
          "window": {
            "start": {
              "local": "1999-05-15T00:03:43+04:30",
              "utc": "1999-05-14T19:33:43Z",
              "ms": 926710423068.6254
            },
            "end": {
              "local": "1999-05-15T00:51:43+04:30",
              "utc": "1999-05-14T20:21:43Z",
              "ms": 926713303068.6254
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 00:13 on Fri 14 May to 20:30 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 39 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 539 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 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": "boundary"
        }
      ],
      "quote": "In Mashhad, Śivarātri 1999 falls on Thursday 13 May. Caturdaśī runs from 00:13 on Fri 14 May to 20:30 on Fri 14 May and covers 39 of 48 minutes of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-05-18",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-05-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23711,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-05-18T05:29:00+04:30",
          "utc": "1999-05-18T00:59:00Z",
          "ms": 926989139917.3752
        },
        "end": {
          "local": "1999-05-19T02:35:39+04:30",
          "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": "1999-05-18T05:29:00+04:30",
          "utc": "1999-05-18T00:59:00Z",
          "ms": 926989139917.3752
        },
        "end": {
          "local": "1999-05-19T02:35:39+04:30",
          "utc": "1999-05-18T22:05:39Z",
          "ms": 927065139394.7544
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-05-18",
          "window": {
            "start": {
              "local": "1999-05-18T12:04:11+04:30",
              "utc": "1999-05-18T07:34:11Z",
              "ms": 927012851167.5862
            },
            "end": {
              "local": "1999-05-18T12:52:11+04:30",
              "utc": "1999-05-18T08:22:11Z",
              "ms": 927015731167.5862
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-05-19",
          "window": {
            "start": {
              "local": "1999-05-19T12:04:13+04:30",
              "utc": "1999-05-19T07:34:13Z",
              "ms": 927099253351.0098
            },
            "end": {
              "local": "1999-05-19T12:52:13+04:30",
              "utc": "1999-05-19T08:22:13Z",
              "ms": 927102133351.0098
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 05:29 on Tue 18 May to 02:36 on Wed 19 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 18th, 12:04–12:52 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 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 23711 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 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 Mashhad, Vināyaka Caturthī 1999 falls on Tuesday 18 May. Caturthī runs from 05:29 on Tue 18 May to 02:36 on Wed 19 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-05-25",
      "festival": "ekadashi",
      "name": "Śukla Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-05-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11797,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-05-25T00:15:15+04:30",
          "utc": "1999-05-24T19:45:15Z",
          "ms": 927575115366.4723
        },
        "end": {
          "local": "1999-05-26T02:01:58+04:30",
          "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": "1999-05-25T00:15:15+04:30",
          "utc": "1999-05-24T19:45:15Z",
          "ms": 927575115366.4723
        },
        "end": {
          "local": "1999-05-26T02:01:58+04:30",
          "utc": "1999-05-25T21:31:58Z",
          "ms": 927667918480.4839
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-05-25",
          "window": {
            "start": {
              "local": "1999-05-25T05:19:09+04:30",
              "utc": "1999-05-25T00:49:09Z",
              "ms": 927593348515.2106
            },
            "end": {
              "local": "1999-05-25T05:19:09+04:30",
              "utc": "1999-05-25T00:49:09Z",
              "ms": 927593348515.2106
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-05-26",
          "window": {
            "start": {
              "local": "1999-05-26T05:18:36+04:30",
              "utc": "1999-05-26T00:48:36Z",
              "ms": 927679715947.6252
            },
            "end": {
              "local": "1999-05-26T05:18:36+04:30",
              "utc": "1999-05-26T00:48:36Z",
              "ms": 927679715947.6252
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 00:15 on Tue 25 May to 02:02 on Wed 26 May.",
          "fact": "1999-05-24T19:45:15Z → 1999-05-25T21:31:58Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:19 on the 25th and 05:19 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 11797 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Ekādaśī, Mashhad, 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 Mashhad, Śukla Ekādaśī 1999 falls on Tuesday 25 May. Ekādaśī runs from 00:15 on Tue 25 May to 02:02 on Wed 26 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-05-27",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-05-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25887,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-05-27T04:07:31+04:30",
          "utc": "1999-05-26T23:37:31Z",
          "ms": 927761850890.3539
        },
        "end": {
          "local": "1999-05-28T06:24:31+04:30",
          "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": "1999-05-27T04:07:31+04:30",
          "utc": "1999-05-26T23:37:31Z",
          "ms": 927761850890.3539
        },
        "end": {
          "local": "1999-05-28T06:24:31+04:30",
          "utc": "1999-05-28T01:54:31Z",
          "ms": 927856471358.544
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-05-26",
          "window": {
            "start": {
              "local": "1999-05-26T19:38:50+04:30",
              "utc": "1999-05-26T15:08:50Z",
              "ms": 927731329657.7584
            },
            "end": {
              "local": "1999-05-26T20:56:04+04:30",
              "utc": "1999-05-26T16:26:04Z",
              "ms": 927735963706.6464
            }
          },
          "covered_min": 0,
          "window_min": 77,
          "qualifies": false
        },
        {
          "local_date": "1999-05-27",
          "window": {
            "start": {
              "local": "1999-05-27T19:39:33+04:30",
              "utc": "1999-05-27T15:09:33Z",
              "ms": 927817772853.5162
            },
            "end": {
              "local": "1999-05-27T20:56:37+04:30",
              "utc": "1999-05-27T16:26:37Z",
              "ms": 927822397241.0332
            }
          },
          "covered_min": 77,
          "window_min": 77,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 04:08 on Thu 27 May to 06:25 on Fri 28 May.",
          "fact": "1999-05-26T23:37:31Z → 1999-05-28T01:54:31Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:39–20:56 on the 26th, 19:40–20:57 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 77 minutes on the 26th and 77 of 77 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 25887 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 1999: Thursday 27 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": "1999-05-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-05-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 1999 falls on Thursday 27 May. Trayodaśī runs from 04:08 on Thu 27 May to 06:25 on Fri 28 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-06-02",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13545,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-06-02T17:37:50+04:30",
          "utc": "1999-06-02T13:07:50Z",
          "ms": 928328870018.832
        },
        "end": {
          "local": "1999-06-03T19:16:08+04:30",
          "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": "1999-06-02T17:37:50+04:30",
          "utc": "1999-06-02T13:07:50Z",
          "ms": 928328870018.832
        },
        "end": {
          "local": "1999-06-03T19:16:08+04:30",
          "utc": "1999-06-03T14:46:08Z",
          "ms": 928421168329.2004
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-06-02",
          "window": {
            "start": {
              "local": "1999-06-02T22:17:07+04:30",
              "utc": "1999-06-02T17:47:07Z",
              "ms": 928345626640.2314
            },
            "end": {
              "local": "1999-06-02T22:17:07+04:30",
              "utc": "1999-06-02T17:47:07Z",
              "ms": 928345626640.2314
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-06-03",
          "window": {
            "start": {
              "local": "1999-06-03T23:01:54+04:30",
              "utc": "1999-06-03T18:31:54Z",
              "ms": 928434713518.5427
            },
            "end": {
              "local": "1999-06-03T23:01:54+04:30",
              "utc": "1999-06-03T18:31:54Z",
              "ms": 928434713518.5427
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 17:38 on Wed 2 Jun to 19:16 on Thu 3 Jun.",
          "fact": "1999-06-02T13:07:50Z → 1999-06-03T14:46:08Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:17 on the 2nd and 23:02 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 13545 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 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 Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Wednesday 2 June. Caturthī runs from 17:38 on Wed 2 Jun to 19:16 on Thu 3 Jun and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-06-10",
      "festival": "ekadashi",
      "name": "Kṛṣṇa Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31535,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-06-09T16:45:45+04:30",
          "utc": "1999-06-09T12:15:45Z",
          "ms": 928930544990.5703
        },
        "end": {
          "local": "1999-06-10T13:59:26+04:30",
          "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": "1999-06-09T16:45:45+04:30",
          "utc": "1999-06-09T12:15:45Z",
          "ms": 928930544990.5703
        },
        "end": {
          "local": "1999-06-10T13:59:26+04:30",
          "utc": "1999-06-10T09:29:26Z",
          "ms": 929006965517.292
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-06-09",
          "window": {
            "start": {
              "local": "1999-06-09T05:13:58+04:30",
              "utc": "1999-06-09T00:43:58Z",
              "ms": 928889037665.1184
            },
            "end": {
              "local": "1999-06-09T05:13:58+04:30",
              "utc": "1999-06-09T00:43:58Z",
              "ms": 928889037665.1184
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-06-10",
          "window": {
            "start": {
              "local": "1999-06-10T05:13:51+04:30",
              "utc": "1999-06-10T00:43:51Z",
              "ms": 928975430733.5206
            },
            "end": {
              "local": "1999-06-10T05:13:51+04:30",
              "utc": "1999-06-10T00:43:51Z",
              "ms": 928975430733.5206
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 16:46 on Wed 9 Jun to 13:59 on Thu 10 Jun.",
          "fact": "1999-06-09T12:15:45Z → 1999-06-10T09:29:26Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:14 on the 9th and 05:14 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 on the 10th.",
          "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 31535 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Ekādaśī, Mashhad, 1999: Thursday 10 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": "1999-06-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Ekādaśī 1999 falls on Thursday 10 June. Ekādaśī runs from 16:46 on Wed 9 Jun to 13:59 on Thu 10 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/ekadashi?on=1999-06-10",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/pradosha-vrata?on=1999-06-11",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32705,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-06-11T10:43:27+04:30",
          "utc": "1999-06-11T06:13:27Z",
          "ms": 929081607428.5042
        },
        "end": {
          "local": "1999-06-12T07:06:51+04:30",
          "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": "1999-06-11T10:43:27+04:30",
          "utc": "1999-06-11T06:13:27Z",
          "ms": 929081607428.5042
        },
        "end": {
          "local": "1999-06-12T07:06:51+04:30",
          "utc": "1999-06-12T02:36:51Z",
          "ms": 929155011442.7278
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-06-11",
          "window": {
            "start": {
              "local": "1999-06-11T19:48:33+04:30",
              "utc": "1999-06-11T15:18:33Z",
              "ms": 929114312533.5997
            },
            "end": {
              "local": "1999-06-11T21:03:54+04:30",
              "utc": "1999-06-11T16:33:54Z",
              "ms": 929118833798.6755
            }
          },
          "covered_min": 75,
          "window_min": 75,
          "qualifies": true
        },
        {
          "local_date": "1999-06-12",
          "window": {
            "start": {
              "local": "1999-06-12T19:49:00+04:30",
              "utc": "1999-06-12T15:19:00Z",
              "ms": 929200739718.2086
            },
            "end": {
              "local": "1999-06-12T21:04:17+04:30",
              "utc": "1999-06-12T16:34:17Z",
              "ms": 929205257117.8259
            }
          },
          "covered_min": 0,
          "window_min": 75,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 10:43 on Fri 11 Jun to 07:07 on Sat 12 Jun.",
          "fact": "1999-06-11T06:13:27Z → 1999-06-12T02:36:51Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:49–21:04 on the 11th, 19:49–21:04 on the 12th.",
          "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 75 minutes on the 11th and 0 of 75 on the 12th.",
          "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 32705 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 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 Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Friday 11 June. Trayodaśī runs from 10:43 on Fri 11 Jun to 07:07 on Sat 12 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shivaratri?on=1999-06-12",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8665,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-06-12T07:06:51+04:30",
          "utc": "1999-06-12T02:36:51Z",
          "ms": 929155011442.7278
        },
        "end": {
          "local": "1999-06-13T03:19:45+04:30",
          "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": "1999-06-12T07:06:51+04:30",
          "utc": "1999-06-12T02:36:51Z",
          "ms": 929155011442.7278
        },
        "end": {
          "local": "1999-06-13T03:19:45+04:30",
          "utc": "1999-06-12T22:49:45Z",
          "ms": 929227785212.3899
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-06-11",
          "window": {
            "start": {
              "local": "1999-06-12T00:07:07+04:30",
              "utc": "1999-06-11T19:37:07Z",
              "ms": 929129827277.6339
            },
            "end": {
              "local": "1999-06-12T00:55:07+04:30",
              "utc": "1999-06-11T20:25:07Z",
              "ms": 929132707277.6339
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-06-12",
          "window": {
            "start": {
              "local": "1999-06-13T00:07:20+04:30",
              "utc": "1999-06-12T19:37:20Z",
              "ms": 929216239966.7734
            },
            "end": {
              "local": "1999-06-13T00:55:20+04:30",
              "utc": "1999-06-12T20:25:20Z",
              "ms": 929219119966.7734
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 07:07 on Sat 12 Jun to 03:20 on Sun 13 Jun.",
          "fact": "1999-06-12T02:36:51Z → 1999-06-12T22:49:45Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:07–00:55 on the 11th, 00:07–00:55 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 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 8665 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 1999: Saturday 12 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": "1999-06-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 1999 falls on Saturday 12 June. Caturdaśī runs from 07:07 on Sat 12 Jun to 03:20 on Sun 13 Jun and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/shivaratri?on=1999-06-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/rambha-tritiya",
      "festival": "rambha-tritiya",
      "name": "Rambhā Tṛtīyā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3771,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-06-15T16:42:30+04:30",
          "utc": "1999-06-15T12:12:30Z",
          "ms": 929448749906.3755
        },
        "end": {
          "local": "1999-06-16T13:59:01+04:30",
          "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": "1999-06-15T16:42:30+04:30",
          "utc": "1999-06-15T12:12:30Z",
          "ms": 929448749906.3755
        },
        "end": {
          "local": "1999-06-16T13:59:01+04:30",
          "utc": "1999-06-16T09:29:01Z",
          "ms": 929525341229.3845
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-06-15",
          "window": {
            "start": {
              "local": "1999-06-15T12:07:57+04:30",
              "utc": "1999-06-15T07:37:57Z",
              "ms": 929432277443.5437
            },
            "end": {
              "local": "1999-06-15T12:55:57+04:30",
              "utc": "1999-06-15T08:25:57Z",
              "ms": 929435157443.5437
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-06-16",
          "window": {
            "start": {
              "local": "1999-06-16T12:08:10+04:30",
              "utc": "1999-06-16T07:38:10Z",
              "ms": 929518689889.715
            },
            "end": {
              "local": "1999-06-16T12:56:10+04:30",
              "utc": "1999-06-16T08:26:10Z",
              "ms": 929521569889.715
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 16:42 on Tue 15 Jun to 13:59 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, 12:08–12:56 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 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. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 3771 s"
        },
        {
          "step": "ruling",
          "text": "Rambhā Tṛtīyā, Mashhad, 1999: Wednesday 16 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": "1999-06-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-16",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Rambhā Tṛtīyā 1999 falls on Wednesday 16 June. Tṛtīyā runs from 16:42 on Tue 15 Jun to 13:59 on Wed 16 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-06-17",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 829,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-06-16T13:59:01+04:30",
          "utc": "1999-06-16T09:29:01Z",
          "ms": 929525341229.3845
        },
        "end": {
          "local": "1999-06-17T11:54:33+04:30",
          "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": "1999-06-16T13:59:01+04:30",
          "utc": "1999-06-16T09:29:01Z",
          "ms": 929525341229.3845
        },
        "end": {
          "local": "1999-06-17T11:54:33+04:30",
          "utc": "1999-06-17T07:24:33Z",
          "ms": 929604273488.098
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-06-16",
          "window": {
            "start": {
              "local": "1999-06-16T12:08:10+04:30",
              "utc": "1999-06-16T07:38:10Z",
              "ms": 929518689889.715
            },
            "end": {
              "local": "1999-06-16T12:56:10+04:30",
              "utc": "1999-06-16T08:26:10Z",
              "ms": 929521569889.715
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-06-17",
          "window": {
            "start": {
              "local": "1999-06-17T12:08:22+04:30",
              "utc": "1999-06-17T07:38:22Z",
              "ms": 929605102416.9426
            },
            "end": {
              "local": "1999-06-17T12:56:22+04:30",
              "utc": "1999-06-17T08:26:22Z",
              "ms": 929607982416.9426
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:59 on Wed 16 Jun to 11:55 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: 12:08–12:56 on the 16th, 12:08–12:56 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 0 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": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: unstated → second-day · margin 829 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 1999: Thursday 17 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": "1999-06-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-17",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 1999 falls on Thursday 17 June. Caturthī runs from 13:59 on Wed 16 Jun to 11:55 on Thu 17 Jun, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-06-17",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/aranya-gauri-vrata",
      "festival": "aranya-gauri-vrata",
      "name": "Araṇya Gaurī Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5618,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-06-18T10:34:57+04:30",
          "utc": "1999-06-18T06:04:57Z",
          "ms": 929685896740.0815
        },
        "end": {
          "local": "1999-06-19T10:03:07+04:30",
          "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": "1999-06-18T10:34:57+04:30",
          "utc": "1999-06-18T06:04:57Z",
          "ms": 929685896740.0815
        },
        "end": {
          "local": "1999-06-19T10:03:07+04:30",
          "utc": "1999-06-19T05:33:07Z",
          "ms": 929770386701.6965
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-06-18",
          "window": {
            "start": {
              "local": "1999-06-18T12:08:35+04:30",
              "utc": "1999-06-18T07:38:35Z",
              "ms": 929691514998.9519
            },
            "end": {
              "local": "1999-06-18T12:56:35+04:30",
              "utc": "1999-06-18T08:26:35Z",
              "ms": 929694394998.9519
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-06-19",
          "window": {
            "start": {
              "local": "1999-06-19T12:08:48+04:30",
              "utc": "1999-06-19T07:38:48Z",
              "ms": 929777927610.6892
            },
            "end": {
              "local": "1999-06-19T12:56:48+04:30",
              "utc": "1999-06-19T08:26:48Z",
              "ms": 929780807610.6892
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 10:35 on Fri 18 Jun to 10:03 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 5618 s"
        },
        {
          "step": "ruling",
          "text": "Araṇya Gaurī Vrata, Mashhad, 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 Mashhad, Araṇya Gaurī Vrata 1999 falls on Friday 18 June. Ṣaṣṭhī runs from 10:35 on Fri 18 Jun to 10:03 on Sat 19 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/skanda-shashthi-jyaishtha",
      "festival": "skanda-shashthi-jyaishtha",
      "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5618,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-06-18T10:34:57+04:30",
          "utc": "1999-06-18T06:04:57Z",
          "ms": 929685896740.0815
        },
        "end": {
          "local": "1999-06-19T10:03:07+04:30",
          "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": "1999-06-18T10:34:57+04:30",
          "utc": "1999-06-18T06:04:57Z",
          "ms": 929685896740.0815
        },
        "end": {
          "local": "1999-06-19T10:03:07+04:30",
          "utc": "1999-06-19T05:33:07Z",
          "ms": 929770386701.6965
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-06-18",
          "window": {
            "start": {
              "local": "1999-06-18T12:08:35+04:30",
              "utc": "1999-06-18T07:38:35Z",
              "ms": 929691514998.9519
            },
            "end": {
              "local": "1999-06-18T12:56:35+04:30",
              "utc": "1999-06-18T08:26:35Z",
              "ms": 929694394998.9519
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-06-19",
          "window": {
            "start": {
              "local": "1999-06-19T12:08:48+04:30",
              "utc": "1999-06-19T07:38:48Z",
              "ms": 929777927610.6892
            },
            "end": {
              "local": "1999-06-19T12:56:48+04:30",
              "utc": "1999-06-19T08:26:48Z",
              "ms": 929780807610.6892
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 10:35 on Fri 18 Jun to 10:03 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 5618 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Mashhad, 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 Mashhad, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1999 falls on Friday 18 June. Ṣaṣṭhī runs from 10:35 on Fri 18 Jun to 10:03 on Sat 19 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-06-24",
      "festival": "ekadashi",
      "name": "Nirjalā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34655,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-06-23T14:52:26+04:30",
          "utc": "1999-06-23T10:22:26Z",
          "ms": 930133346341.8313
        },
        "end": {
          "local": "1999-06-24T17:09:28+04:30",
          "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": "1999-06-23T14:52:26+04:30",
          "utc": "1999-06-23T10:22:26Z",
          "ms": 930133346341.8313
        },
        "end": {
          "local": "1999-06-24T17:09:28+04:30",
          "utc": "1999-06-24T12:39:28Z",
          "ms": 930227968071.9729
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-06-23",
          "window": {
            "start": {
              "local": "1999-06-23T05:14:51+04:30",
              "utc": "1999-06-23T00:44:51Z",
              "ms": 930098691213.5319
            },
            "end": {
              "local": "1999-06-23T05:14:51+04:30",
              "utc": "1999-06-23T00:44:51Z",
              "ms": 930098691213.5319
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-06-24",
          "window": {
            "start": {
              "local": "1999-06-24T05:15:07+04:30",
              "utc": "1999-06-24T00:45:07Z",
              "ms": 930185106762.8229
            },
            "end": {
              "local": "1999-06-24T05:15:07+04:30",
              "utc": "1999-06-24T00:45:07Z",
              "ms": 930185106762.8229
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 14:52 on Wed 23 Jun to 17:09 on Thu 24 Jun.",
          "fact": "1999-06-23T10:22:26Z → 1999-06-24T12:39:28Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:15 on the 23rd and 05:15 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 34655 s"
        },
        {
          "step": "ruling",
          "text": "Nirjalā Ekādaśī, Mashhad, 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 Mashhad, Nirjalā Ekādaśī 1999 falls on Thursday 24 June. Ekādaśī runs from 14:52 on Wed 23 Jun to 17:09 on Thu 24 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shri-rama-dvadashi",
      "festival": "shri-rama-dvadashi",
      "name": "Śrī Rāma Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15098,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-06-24T17:09:28+04:30",
          "utc": "1999-06-24T12:39:28Z",
          "ms": 930227968071.9729
        },
        "end": {
          "local": "1999-06-25T19:32:55+04:30",
          "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": "1999-06-24T17:09:28+04:30",
          "utc": "1999-06-24T12:39:28Z",
          "ms": 930227968071.9729
        },
        "end": {
          "local": "1999-06-25T19:32:55+04:30",
          "utc": "1999-06-25T15:02:55Z",
          "ms": 930322974830.4047
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-06-24",
          "window": {
            "start": {
              "local": "1999-06-24T12:09:50+04:30",
              "utc": "1999-06-24T07:39:50Z",
              "ms": 930209990302.5547
            },
            "end": {
              "local": "1999-06-24T12:57:50+04:30",
              "utc": "1999-06-24T08:27:50Z",
              "ms": 930212870302.5547
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-06-25",
          "window": {
            "start": {
              "local": "1999-06-25T12:10:03+04:30",
              "utc": "1999-06-25T07:40:03Z",
              "ms": 930296402614.16
            },
            "end": {
              "local": "1999-06-25T12:58:03+04:30",
              "utc": "1999-06-25T08:28:03Z",
              "ms": 930299282614.16
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 17:09 on Thu 24 Jun to 19:33 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, 12:10–12:58 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 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: purvaviddha → only-day · margin 15098 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Rāma Dvādaśī, Mashhad, 1999: Friday 25 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": "1999-06-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śrī Rāma Dvādaśī 1999 falls on Friday 25 June. Dvādaśī runs from 17:09 on Thu 24 Jun to 19:33 on Fri 25 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-06-26",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-26",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 1187,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-06-25T19:32:55+04:30",
          "utc": "1999-06-25T15:02:55Z",
          "ms": 930322974830.4047
        },
        "end": {
          "local": "1999-06-26T21:54:28+04:30",
          "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": "1999-06-25T19:32:55+04:30",
          "utc": "1999-06-25T15:02:55Z",
          "ms": 930322974830.4047
        },
        "end": {
          "local": "1999-06-26T21:54:28+04:30",
          "utc": "1999-06-26T17:24:28Z",
          "ms": 930417868352.8892
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-06-25",
          "window": {
            "start": {
              "local": "1999-06-25T19:52:41+04:30",
              "utc": "1999-06-25T15:22:41Z",
              "ms": 930324161471.513
            },
            "end": {
              "local": "1999-06-25T21:07:46+04:30",
              "utc": "1999-06-25T16:37:46Z",
              "ms": 930328665564.633
            }
          },
          "covered_min": 75,
          "window_min": 75,
          "qualifies": true
        },
        {
          "local_date": "1999-06-26",
          "window": {
            "start": {
              "local": "1999-06-26T19:52:47+04:30",
              "utc": "1999-06-26T15:22:47Z",
              "ms": 930410567432.967
            },
            "end": {
              "local": "1999-06-26T21:07:53+04:30",
              "utc": "1999-06-26T16:37:53Z",
              "ms": 930415073372.0116
            }
          },
          "covered_min": 75,
          "window_min": 75,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 19:33 on Fri 25 Jun to 21:54 on Sat 26 Jun.",
          "fact": "1999-06-25T15:02:55Z → 1999-06-26T17:24:28Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:53–21:08 on the 25th, 19:53–21:08 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 75 of 75 minutes on the 25th and 75 of 75 on the 26th.",
          "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 1187 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 1999: Saturday 26 June.",
          "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": "1999-06-26",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-26",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 1999 falls on Saturday 26 June. Trayodaśī runs from 19:33 on Fri 25 Jun to 21:54 on Sat 26 Jun and covers all of pradoṣa that evening. It also reaches the previous evening for 75 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/mashhad/festivals/1999/pradosha-vrata?on=1999-06-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/vata-savitri-vrata",
      "festival": "vata-savitri-vrata",
      "name": "Vaṭa Sāvitrī Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-06-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10777,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-06-28T00:07:37+04:30",
          "utc": "1999-06-27T19:37:37Z",
          "ms": 930512257397.7489
        },
        "end": {
          "local": "1999-06-29T02:07:27+04:30",
          "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": "1999-06-28T00:07:37+04:30",
          "utc": "1999-06-27T19:37:37Z",
          "ms": 930512257397.7489
        },
        "end": {
          "local": "1999-06-29T02:07:27+04:30",
          "utc": "1999-06-28T21:37:27Z",
          "ms": 930605846970.0487
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-06-27",
          "window": {
            "start": {
              "local": "1999-06-27T19:52:52+04:30",
              "utc": "1999-06-27T15:22:52Z",
              "ms": 930496971713.1053
            },
            "end": {
              "local": "1999-06-27T21:08:00+04:30",
              "utc": "1999-06-27T16:38:00Z",
              "ms": 930501479904.3475
            }
          },
          "covered_min": 0,
          "window_min": 75,
          "qualifies": false
        },
        {
          "local_date": "1999-06-28",
          "window": {
            "start": {
              "local": "1999-06-28T19:52:54+04:30",
              "utc": "1999-06-28T15:22:54Z",
              "ms": 930583374300.0435
            },
            "end": {
              "local": "1999-06-28T21:08:05+04:30",
              "utc": "1999-06-28T16:38:05Z",
              "ms": 930587885147.6471
            }
          },
          "covered_min": 75,
          "window_min": 75,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 00:08 on Mon 28 Jun to 02:07 on Tue 29 Jun.",
          "fact": "1999-06-27T19:37:37Z → 1999-06-28T21:37:27Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:53–21:08 on the 27th, 19:53–21:08 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 0 of 75 minutes on the 27th and 75 of 75 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 10777 s"
        },
        {
          "step": "ruling",
          "text": "Vaṭa Sāvitrī Vrata, Mashhad, 1999: Monday 28 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": "1999-06-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-06-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vaṭa Sāvitrī Vrata 1999 falls on Monday 28 June. Pūrṇimā runs from 00:08 on Mon 28 Jun to 02:07 on Tue 29 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-07-02",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29966,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-07-02T06:11:08+04:30",
          "utc": "1999-07-02T01:41:08Z",
          "ms": 930879668325.1185
        },
        "end": {
          "local": "1999-07-03T06:43:06+04:30",
          "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": "1999-07-02T06:11:08+04:30",
          "utc": "1999-07-02T01:41:08Z",
          "ms": 930879668325.1185
        },
        "end": {
          "local": "1999-07-03T06:43:06+04:30",
          "utc": "1999-07-03T02:13:06Z",
          "ms": 930967986009.3954
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-07-01",
          "window": {
            "start": {
              "local": "1999-07-01T21:44:09+04:30",
              "utc": "1999-07-01T17:14:09Z",
              "ms": 930849248813.7725
            },
            "end": {
              "local": "1999-07-01T21:44:09+04:30",
              "utc": "1999-07-01T17:14:09Z",
              "ms": 930849248813.7725
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-07-02",
          "window": {
            "start": {
              "local": "1999-07-02T22:23:40+04:30",
              "utc": "1999-07-02T17:53:40Z",
              "ms": 930938020439.0603
            },
            "end": {
              "local": "1999-07-02T22:23:40+04:30",
              "utc": "1999-07-02T17:53:40Z",
              "ms": 930938020439.0603
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:11 on Fri 2 Jul to 06:43 on Sat 3 Jul.",
          "fact": "1999-07-02T01:41:08Z → 1999-07-03T02:13:06Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:44 on the 1st and 22:24 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 29966 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 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": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Friday 2 July. Caturthī runs from 06:11 on Fri 2 Jul to 06:43 on Sat 3 Jul and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-07-09",
      "festival": "ekadashi",
      "name": "Yoginī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23568,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-07-08T22:48:50+04:30",
          "utc": "1999-07-08T18:18:50Z",
          "ms": 931457930167.8739
        },
        "end": {
          "local": "1999-07-09T19:50:34+04:30",
          "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": "1999-07-08T22:48:50+04:30",
          "utc": "1999-07-08T18:18:50Z",
          "ms": 931457930167.8739
        },
        "end": {
          "local": "1999-07-09T19:50:34+04:30",
          "utc": "1999-07-09T15:20:34Z",
          "ms": 931533634146.4327
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-07-09",
          "window": {
            "start": {
              "local": "1999-07-09T05:21:38+04:30",
              "utc": "1999-07-09T00:51:38Z",
              "ms": 931481497776.6559
            },
            "end": {
              "local": "1999-07-09T05:21:38+04:30",
              "utc": "1999-07-09T00:51:38Z",
              "ms": 931481497776.6559
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-07-10",
          "window": {
            "start": {
              "local": "1999-07-10T05:22:13+04:30",
              "utc": "1999-07-10T00:52:13Z",
              "ms": 931567932969.0933
            },
            "end": {
              "local": "1999-07-10T05:22:13+04:30",
              "utc": "1999-07-10T00:52:13Z",
              "ms": 931567932969.0933
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 22:49 on Thu 8 Jul to 19:51 on Fri 9 Jul.",
          "fact": "1999-07-08T18:18:50Z → 1999-07-09T15:20:34Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:22 on the 9th and 05:22 on the 10th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is 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": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 23568 s"
        },
        {
          "step": "ruling",
          "text": "Yoginī Ekādaśī, Mashhad, 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 Mashhad, Yoginī Ekādaśī 1999 falls on Friday 9 July. Ekādaśī runs from 22:49 on Thu 8 Jul to 19:51 on Fri 9 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-07-10",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11622,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-07-10T16:37:29+04:30",
          "utc": "1999-07-10T12:07:29Z",
          "ms": 931608449200.7272
        },
        "end": {
          "local": "1999-07-11T13:17:45+04:30",
          "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": "1999-07-10T16:37:29+04:30",
          "utc": "1999-07-10T12:07:29Z",
          "ms": 931608449200.7272
        },
        "end": {
          "local": "1999-07-11T13:17:45+04:30",
          "utc": "1999-07-11T08:47:45Z",
          "ms": 931682864642.701
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-07-10",
          "window": {
            "start": {
              "local": "1999-07-10T19:51:11+04:30",
              "utc": "1999-07-10T15:21:11Z",
              "ms": 931620070806.5609
            },
            "end": {
              "local": "1999-07-10T21:07:24+04:30",
              "utc": "1999-07-10T16:37:24Z",
              "ms": 931624643912.2874
            }
          },
          "covered_min": 76,
          "window_min": 76,
          "qualifies": true
        },
        {
          "local_date": "1999-07-11",
          "window": {
            "start": {
              "local": "1999-07-11T19:50:51+04:30",
              "utc": "1999-07-11T15:20:51Z",
              "ms": 931706450881.9304
            },
            "end": {
              "local": "1999-07-11T21:07:12+04:30",
              "utc": "1999-07-11T16:37:12Z",
              "ms": 931711031581.0337
            }
          },
          "covered_min": 0,
          "window_min": 76,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 16:37 on Sat 10 Jul to 13:18 on Sun 11 Jul.",
          "fact": "1999-07-10T12:07:29Z → 1999-07-11T08:47:45Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:51–21:07 on the 10th, 19:51–21:07 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 76 of 76 minutes on the 10th and 0 of 76 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 11622 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 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 Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Saturday 10 July. Trayodaśī runs from 16:37 on Sat 10 Jul to 13:18 on Sun 11 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shivaratri?on=1999-07-11",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32342,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-07-11T13:17:45+04:30",
          "utc": "1999-07-11T08:47:45Z",
          "ms": 931682864642.701
        },
        "end": {
          "local": "1999-07-12T10:00:11+04:30",
          "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": "1999-07-11T13:17:45+04:30",
          "utc": "1999-07-11T08:47:45Z",
          "ms": 931682864642.701
        },
        "end": {
          "local": "1999-07-12T10:00:11+04:30",
          "utc": "1999-07-12T05:30:11Z",
          "ms": 931757410981.5421
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-07-10",
          "window": {
            "start": {
              "local": "1999-07-11T00:13:00+04:30",
              "utc": "1999-07-10T19:43:00Z",
              "ms": 931635779953.0349
            },
            "end": {
              "local": "1999-07-11T01:01:00+04:30",
              "utc": "1999-07-10T20:31:00Z",
              "ms": 931638659953.0349
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-07-11",
          "window": {
            "start": {
              "local": "1999-07-12T00:13:09+04:30",
              "utc": "1999-07-11T19:43:09Z",
              "ms": 931722188503.5677
            },
            "end": {
              "local": "1999-07-12T01:01:09+04:30",
              "utc": "1999-07-11T20:31:09Z",
              "ms": 931725068503.5677
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 13:18 on Sun 11 Jul to 10:00 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, 00:13–01:01 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 32342 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 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 Mashhad, Śivarātri 1999 falls on Sunday 11 July. Caturdaśī runs from 13:18 on Sun 11 Jul to 10:00 on Mon 12 Jul and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/rathayatra",
      "festival": "rathayatra",
      "name": "Rathayātrā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29106,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1999-07-14T04:08:06+04:30",
          "utc": "1999-07-13T23:38:06Z",
          "ms": 931909085922.7474
        },
        "end": {
          "local": "1999-07-15T01:51:07+04:30",
          "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": "1999-07-14T04:08:06+04:30",
          "utc": "1999-07-13T23:38:06Z",
          "ms": 931909085922.7474
        },
        "end": {
          "local": "1999-07-15T01:51:07+04:30",
          "utc": "1999-07-14T21:21:07Z",
          "ms": 931987267449.5486
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-07-14",
          "window": {
            "start": {
              "local": "1999-07-14T12:13:12+04:30",
              "utc": "1999-07-14T07:43:12Z",
              "ms": 931938191676.662
            },
            "end": {
              "local": "1999-07-14T13:01:12+04:30",
              "utc": "1999-07-14T08:31:12Z",
              "ms": 931941071676.662
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-07-15",
          "window": {
            "start": {
              "local": "1999-07-15T12:13:18+04:30",
              "utc": "1999-07-15T07:43:18Z",
              "ms": 932024597962.4648
            },
            "end": {
              "local": "1999-07-15T13:01:18+04:30",
              "utc": "1999-07-15T08:31:18Z",
              "ms": 932027477962.4648
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 04:08 on Wed 14 Jul to 01:51 on Thu 15 Jul.",
          "fact": "1999-07-13T23:38:06Z → 1999-07-14T21:21:07Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 14th, 12:13–13:01 on the 15th.",
          "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 14th and 0 of 48 on the 15th.",
          "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 29106 s"
        },
        {
          "step": "ruling",
          "text": "Rathayātrā, Mashhad, 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 Mashhad, Rathayātrā 1999 falls on Wednesday 14 July. Dvitīyā runs from 04:08 on Wed 14 Jul to 01:51 on Thu 15 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-07-16",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36612,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-07-16T00:10:25+04:30",
          "utc": "1999-07-15T19:40:25Z",
          "ms": 932067624957.8324
        },
        "end": {
          "local": "1999-07-16T23:11:35+04:30",
          "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": "1999-07-16T00:10:25+04:30",
          "utc": "1999-07-15T19:40:25Z",
          "ms": 932067624957.8324
        },
        "end": {
          "local": "1999-07-16T23:11:35+04:30",
          "utc": "1999-07-16T18:41:35Z",
          "ms": 932150495268.8202
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-07-15",
          "window": {
            "start": {
              "local": "1999-07-15T12:13:18+04:30",
              "utc": "1999-07-15T07:43:18Z",
              "ms": 932024597962.4648
            },
            "end": {
              "local": "1999-07-15T13:01:18+04:30",
              "utc": "1999-07-15T08:31:18Z",
              "ms": 932027477962.4648
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-07-16",
          "window": {
            "start": {
              "local": "1999-07-16T12:13:24+04:30",
              "utc": "1999-07-16T07:43:24Z",
              "ms": 932111003745.7513
            },
            "end": {
              "local": "1999-07-16T13:01:24+04:30",
              "utc": "1999-07-16T08:31:24Z",
              "ms": 932113883745.7513
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 00:10 on Fri 16 Jul to 23:12 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: 12:13–13:01 on the 15th, 12:13–13:01 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 36612 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 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 Mashhad, Vināyaka Caturthī 1999 falls on Friday 16 July. Caturthī runs from 00:10 on Fri 16 Jul to 23:12 on Fri 16 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/skanda-panchami",
      "festival": "skanda-panchami",
      "name": "Skanda Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35775,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-07-16T23:11:35+04:30",
          "utc": "1999-07-16T18:41:35Z",
          "ms": 932150495268.8202
        },
        "end": {
          "local": "1999-07-17T22:57:44+04:30",
          "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": "1999-07-16T23:11:35+04:30",
          "utc": "1999-07-16T18:41:35Z",
          "ms": 932150495268.8202
        },
        "end": {
          "local": "1999-07-17T22:57:44+04:30",
          "utc": "1999-07-17T18:27:44Z",
          "ms": 932236064231.186
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-07-16",
          "window": {
            "start": {
              "local": "1999-07-16T12:13:24+04:30",
              "utc": "1999-07-16T07:43:24Z",
              "ms": 932111003745.7513
            },
            "end": {
              "local": "1999-07-16T13:01:24+04:30",
              "utc": "1999-07-16T08:31:24Z",
              "ms": 932113883745.7513
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-07-17",
          "window": {
            "start": {
              "local": "1999-07-17T12:13:29+04:30",
              "utc": "1999-07-17T07:43:29Z",
              "ms": 932197409010.5736
            },
            "end": {
              "local": "1999-07-17T13:01:29+04:30",
              "utc": "1999-07-17T08:31:29Z",
              "ms": 932200289010.5736
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 23:12 on Fri 16 Jul to 22:58 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: 12:13–13:01 on the 16th, 12:13–13:01 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 35775 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Pañcamī, Mashhad, 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 Mashhad, Skanda Pañcamī 1999 falls on Saturday 17 July. Pañcamī runs from 23:12 on Fri 16 Jul to 22:58 on Sat 17 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vivasvat-saptami",
      "festival": "vivasvat-saptami",
      "name": "Vivasvat Saptamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37631,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-07-18T23:28:45+04:30",
          "utc": "1999-07-18T18:58:45Z",
          "ms": 932324325101.7043
        },
        "end": {
          "local": "1999-07-20T00:40:52+04:30",
          "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": "1999-07-18T23:28:45+04:30",
          "utc": "1999-07-18T18:58:45Z",
          "ms": 932324325101.7043
        },
        "end": {
          "local": "1999-07-20T00:40:52+04:30",
          "utc": "1999-07-19T20:10:52Z",
          "ms": 932415052368.0023
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-07-18",
          "window": {
            "start": {
              "local": "1999-07-18T12:13:34+04:30",
              "utc": "1999-07-18T07:43:34Z",
              "ms": 932283813742.8757
            },
            "end": {
              "local": "1999-07-18T13:01:34+04:30",
              "utc": "1999-07-18T08:31:34Z",
              "ms": 932286693742.8757
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-07-19",
          "window": {
            "start": {
              "local": "1999-07-19T12:13:38+04:30",
              "utc": "1999-07-19T07:43:38Z",
              "ms": 932370217930.3569
            },
            "end": {
              "local": "1999-07-19T13:01:38+04:30",
              "utc": "1999-07-19T08:31:38Z",
              "ms": 932373097930.3569
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 23:29 on Sun 18 Jul to 00:41 on Tue 20 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 37631 s"
        },
        {
          "step": "ruling",
          "text": "Vivasvat Saptamī, Mashhad, 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 Mashhad, Vivasvat Saptamī 1999 falls on Monday 19 July. Saptamī runs from 23:29 on Sun 18 Jul to 00:41 on Tue 20 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-07-24",
      "festival": "ekadashi",
      "name": "Hariśayanī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5188,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-07-23T06:57:28+04:30",
          "utc": "1999-07-23T02:27:28Z",
          "ms": 932696848383.046
        },
        "end": {
          "local": "1999-07-24T09:18:49+04:30",
          "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": "1999-07-23T06:57:28+04:30",
          "utc": "1999-07-23T02:27:28Z",
          "ms": 932696848383.046
        },
        "end": {
          "local": "1999-07-24T09:18:49+04:30",
          "utc": "1999-07-24T04:48:49Z",
          "ms": 932791728561.9569
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-07-23",
          "window": {
            "start": {
              "local": "1999-07-23T05:31:01+04:30",
              "utc": "1999-07-23T01:01:01Z",
              "ms": 932691660651.183
            },
            "end": {
              "local": "1999-07-23T05:31:01+04:30",
              "utc": "1999-07-23T01:01:01Z",
              "ms": 932691660651.183
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-07-24",
          "window": {
            "start": {
              "local": "1999-07-24T05:31:45+04:30",
              "utc": "1999-07-24T01:01:45Z",
              "ms": 932778105294.3453
            },
            "end": {
              "local": "1999-07-24T05:31:45+04:30",
              "utc": "1999-07-24T01:01:45Z",
              "ms": 932778105294.3453
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:57 on Fri 23 Jul to 09:19 on Sat 24 Jul.",
          "fact": "1999-07-23T02:27:28Z → 1999-07-24T04:48:49Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:31 on the 23rd and 05:32 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 5188 s"
        },
        {
          "step": "ruling",
          "text": "Hariśayanī Ekādaśī, Mashhad, 1999: Saturday 24 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": "1999-07-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Hariśayanī Ekādaśī 1999 falls on Saturday 24 July. Ekādaśī runs from 06:57 on Fri 23 Jul to 09:19 on Sat 24 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/ekadashi?on=1999-07-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/pradosha-vrata?on=1999-07-25",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22778,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-07-25T11:29:55+04:30",
          "utc": "1999-07-25T06:59:55Z",
          "ms": 932885995043.3507
        },
        "end": {
          "local": "1999-07-26T13:22:49+04:30",
          "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": "1999-07-25T11:29:55+04:30",
          "utc": "1999-07-25T06:59:55Z",
          "ms": 932885995043.3507
        },
        "end": {
          "local": "1999-07-26T13:22:49+04:30",
          "utc": "1999-07-26T08:52:49Z",
          "ms": 932979168870.4291
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-07-25",
          "window": {
            "start": {
              "local": "1999-07-25T19:43:12+04:30",
              "utc": "1999-07-25T15:13:12Z",
              "ms": 932915591872.7906
            },
            "end": {
              "local": "1999-07-25T21:01:52+04:30",
              "utc": "1999-07-25T16:31:52Z",
              "ms": 932920312394.0479
            }
          },
          "covered_min": 79,
          "window_min": 79,
          "qualifies": true
        },
        {
          "local_date": "1999-07-26",
          "window": {
            "start": {
              "local": "1999-07-26T19:42:27+04:30",
              "utc": "1999-07-26T15:12:27Z",
              "ms": 933001946736.1586
            },
            "end": {
              "local": "1999-07-26T21:01:19+04:30",
              "utc": "1999-07-26T16:31:19Z",
              "ms": 933006679380.7363
            }
          },
          "covered_min": 0,
          "window_min": 79,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 11:30 on Sun 25 Jul to 13:23 on Mon 26 Jul.",
          "fact": "1999-07-25T06:59:55Z → 1999-07-26T08:52:49Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:43–21:02 on the 25th, 19:42–21:01 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 79 of 79 minutes on the 25th and 0 of 79 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 22778 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 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 Mashhad, Śukla Pradoṣa Vrata 1999 falls on Sunday 25 July. Trayodaśī runs from 11:30 on Sun 25 Jul to 13:23 on Mon 26 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/kokila-vrata",
      "festival": "kokila-vrata",
      "name": "Kokilā Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3412,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-07-27T14:52:07+04:30",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T15:54:47+04:30",
          "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": "1999-07-27T14:52:07+04:30",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T15:54:47+04:30",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1999-07-27",
          "window": {
            "start": {
              "local": "1999-07-27T16:52:08+04:30",
              "utc": "1999-07-27T12:22:08Z",
              "ms": 933078128360.3097
            },
            "end": {
              "local": "1999-07-27T19:41:40+04:30",
              "utc": "1999-07-27T15:11:40Z",
              "ms": 933088300057.7643
            }
          },
          "covered_min": 170,
          "window_min": 170,
          "qualifies": true
        },
        {
          "local_date": "1999-07-28",
          "window": {
            "start": {
              "local": "1999-07-28T16:51:39+04:30",
              "utc": "1999-07-28T12:21:39Z",
              "ms": 933164499027.0779
            },
            "end": {
              "local": "1999-07-28T19:40:52+04:30",
              "utc": "1999-07-28T15:10:52Z",
              "ms": 933174651862.263
            }
          },
          "covered_min": 0,
          "window_min": 169,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 14:52 on Tue 27 Jul to 15:55 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: 16:52–19:42 on the 27th, 16:52–19:41 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 170 of 170 minutes on the 27th and 0 of 169 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 3412 s"
        },
        {
          "step": "ruling",
          "text": "Kokilā Vrata, Mashhad, 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 Mashhad, Kokilā Vrata 1999 falls on Tuesday 27 July. Pūrṇimā runs from 14:52 on Tue 27 Jul to 15:55 on Wed 28 Jul and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shiva-shayanotsava",
      "festival": "shiva-shayanotsava",
      "name": "Śiva Śayanotsava",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13565,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-07-27T14:52:07+04:30",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T15:54:47+04:30",
          "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": "1999-07-27T14:52:07+04:30",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T15:54:47+04:30",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-07-27",
          "window": {
            "start": {
              "local": "1999-07-27T19:41:40+04:30",
              "utc": "1999-07-27T15:11:40Z",
              "ms": 933088300057.7643
            },
            "end": {
              "local": "1999-07-27T21:00:45+04:30",
              "utc": "1999-07-27T16:30:45Z",
              "ms": 933093045074.9075
            }
          },
          "covered_min": 79,
          "window_min": 79,
          "qualifies": true
        },
        {
          "local_date": "1999-07-28",
          "window": {
            "start": {
              "local": "1999-07-28T19:40:52+04:30",
              "utc": "1999-07-28T15:10:52Z",
              "ms": 933174651862.263
            },
            "end": {
              "local": "1999-07-28T21:00:09+04:30",
              "utc": "1999-07-28T16:30:09Z",
              "ms": 933179409494.6355
            }
          },
          "covered_min": 0,
          "window_min": 79,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 14:52 on Tue 27 Jul to 15:55 on Wed 28 Jul.",
          "fact": "1999-07-27T10:22:07Z → 1999-07-28T11:24:47Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:42–21:01 on the 27th, 19:41–21:00 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 79 of 79 minutes on the 27th and 0 of 79 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: unstated → only-day · margin 13565 s"
        },
        {
          "step": "ruling",
          "text": "Śiva Śayanotsava, Mashhad, 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 Mashhad, Śiva Śayanotsava 1999 falls on Tuesday 27 July. Pūrṇimā runs from 14:52 on Tue 27 Jul to 15:55 on Wed 28 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vyasa-puja",
      "festival": "vyasa-puja",
      "name": "Vyāsa Pūjā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23313,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-07-27T14:52:07+04:30",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T15:54:47+04:30",
          "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": "1999-07-27T14:52:07+04:30",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T15:54:47+04:30",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "1999-07-27",
          "window": {
            "start": {
              "local": "1999-07-27T05:34:02+04:30",
              "utc": "1999-07-27T01:04:02Z",
              "ms": 933037441570.4913
            },
            "end": {
              "local": "1999-07-27T08:23:33+04:30",
              "utc": "1999-07-27T03:53:33Z",
              "ms": 933047613267.9459
            }
          },
          "covered_min": 0,
          "window_min": 170,
          "qualifies": false
        },
        {
          "local_date": "1999-07-28",
          "window": {
            "start": {
              "local": "1999-07-28T05:34:48+04:30",
              "utc": "1999-07-28T01:04:48Z",
              "ms": 933123887686.3378
            },
            "end": {
              "local": "1999-07-28T08:24:01+04:30",
              "utc": "1999-07-28T03:54:01Z",
              "ms": 933134040521.5228
            }
          },
          "covered_min": 169,
          "window_min": 169,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 14:52 on Tue 27 Jul to 15:55 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: 05:34–08:24 on the 27th, 05:35–08:24 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 0 of 170 minutes on the 27th and 169 of 169 on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one morning qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 23313 s"
        },
        {
          "step": "ruling",
          "text": "Vyāsa Pūjā, Mashhad, 1999: Wednesday 28 July.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "1999-07-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vyāsa Pūjā 1999 falls on Wednesday 28 July. Pūrṇimā runs from 14:52 on Tue 27 Jul to 15:55 on Wed 28 Jul and covers all of the first three muhūrtas after sunrise that morning.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/guru-purnima",
      "festival": "guru-purnima",
      "name": "Guru Pūrṇimā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6616,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-07-27T14:52:07+04:30",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T15:54:47+04:30",
          "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": "1999-07-27T14:52:07+04:30",
          "utc": "1999-07-27T10:22:07Z",
          "ms": 933070926684.9521
        },
        "end": {
          "local": "1999-07-28T15:54:47+04:30",
          "utc": "1999-07-28T11:24:47Z",
          "ms": 933161086783.9481
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-07-27",
          "window": {
            "start": {
              "local": "1999-07-27T12:13:51+04:30",
              "utc": "1999-07-27T07:43:51Z",
              "ms": 933061430814.1278
            },
            "end": {
              "local": "1999-07-27T13:01:51+04:30",
              "utc": "1999-07-27T08:31:51Z",
              "ms": 933064310814.1278
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-07-28",
          "window": {
            "start": {
              "local": "1999-07-28T12:13:50+04:30",
              "utc": "1999-07-28T07:43:50Z",
              "ms": 933147829774.3003
            },
            "end": {
              "local": "1999-07-28T13:01:50+04:30",
              "utc": "1999-07-28T08:31:50Z",
              "ms": 933150709774.3003
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 14:52 on Tue 27 Jul to 15:55 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 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. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 6616 s"
        },
        {
          "step": "ruling",
          "text": "Guru Pūrṇimā, Mashhad, 1999: Wednesday 28 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": "1999-07-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-07-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Guru Pūrṇimā 1999 falls on Wednesday 28 July. Pūrṇimā runs from 14:52 on Tue 27 Jul to 15:55 on Wed 28 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ashunya-shayana-vrata-ashadha",
      "festival": "ashunya-shayana-vrata-ashadha",
      "name": "Aśūnya Śayana Vrata (Āṣāḍha)",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14044,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1999-07-29T16:29:38+04:30",
          "utc": "1999-07-29T11:59:38Z",
          "ms": 933249578290.1967
        },
        "end": {
          "local": "1999-07-30T16:36:46+04:30",
          "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": "1999-07-29T16:29:38+04:30",
          "utc": "1999-07-29T11:59:38Z",
          "ms": 933249578290.1967
        },
        "end": {
          "local": "1999-07-30T16:36:46+04:30",
          "utc": "1999-07-30T12:06:46Z",
          "ms": 933336406362.5083
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-07-29",
          "window": {
            "start": {
              "local": "1999-07-29T20:23:42+04:30",
              "utc": "1999-07-29T15:53:42Z",
              "ms": 933263622135.7009
            },
            "end": {
              "local": "1999-07-29T20:23:42+04:30",
              "utc": "1999-07-29T15:53:42Z",
              "ms": 933263622135.7009
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-07-30",
          "window": {
            "start": {
              "local": "1999-07-30T21:01:54+04:30",
              "utc": "1999-07-30T16:31:54Z",
              "ms": 933352314252.5187
            },
            "end": {
              "local": "1999-07-30T21:01:54+04:30",
              "utc": "1999-07-30T16:31:54Z",
              "ms": 933352314252.5187
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 16:30 on Thu 29 Jul to 16:37 on Fri 30 Jul.",
          "fact": "1999-07-29T11:59:38Z → 1999-07-30T12:06:46Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:24 on the 29th and 21:02 on the 30th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā 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. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 14044 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata (Āṣāḍha), Mashhad, 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 Mashhad, Aśūnya Śayana Vrata (Āṣāḍha) 1999 falls on Thursday 29 July. Dvitīyā runs from 16:30 on Thu 29 Jul to 16:37 on Fri 30 Jul and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-07-31",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-07-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19245,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-07-31T16:17:02+04:30",
          "utc": "1999-07-31T11:47:02Z",
          "ms": 933421622382.7141
        },
        "end": {
          "local": "1999-08-01T15:31:44+04:30",
          "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": "1999-07-31T16:17:02+04:30",
          "utc": "1999-07-31T11:47:02Z",
          "ms": 933421622382.7141
        },
        "end": {
          "local": "1999-08-01T15:31:44+04:30",
          "utc": "1999-08-01T11:01:44Z",
          "ms": 933505303586.014
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-07-31",
          "window": {
            "start": {
              "local": "1999-07-31T21:37:47+04:30",
              "utc": "1999-07-31T17:07:47Z",
              "ms": 933440866960.7811
            },
            "end": {
              "local": "1999-07-31T21:37:47+04:30",
              "utc": "1999-07-31T17:07:47Z",
              "ms": 933440866960.7811
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-08-01",
          "window": {
            "start": {
              "local": "1999-08-01T22:12:18+04:30",
              "utc": "1999-08-01T17:42:18Z",
              "ms": 933529338052.1891
            },
            "end": {
              "local": "1999-08-01T22:12:18+04:30",
              "utc": "1999-08-01T17:42:18Z",
              "ms": 933529338052.1891
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 16:17 on Sat 31 Jul to 15:32 on Sun 1 Aug.",
          "fact": "1999-07-31T11:47:02Z → 1999-08-01T11:01:44Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:38 on the 31st and 22:12 on the 1st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 31st and is not on the 1st.",
          "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 19245 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 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 Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Saturday 31 July. Caturthī runs from 16:17 on Sat 31 Jul to 15:32 on Sun 1 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-08-07",
      "festival": "ekadashi",
      "name": "Kāmikā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6582,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-08-07T03:53:00+04:30",
          "utc": "1999-08-06T23:23:00Z",
          "ms": 933981779689.2195
        },
        "end": {
          "local": "1999-08-08T01:13:45+04:30",
          "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": "1999-08-07T03:53:00+04:30",
          "utc": "1999-08-06T23:23:00Z",
          "ms": 933981779689.2195
        },
        "end": {
          "local": "1999-08-08T01:13:45+04:30",
          "utc": "1999-08-07T20:43:45Z",
          "ms": 934058625453.042
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-08-07",
          "window": {
            "start": {
              "local": "1999-08-07T05:42:42+04:30",
              "utc": "1999-08-07T01:12:42Z",
              "ms": 933988361973.1476
            },
            "end": {
              "local": "1999-08-07T05:42:42+04:30",
              "utc": "1999-08-07T01:12:42Z",
              "ms": 933988361973.1476
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-08-08",
          "window": {
            "start": {
              "local": "1999-08-08T05:43:30+04:30",
              "utc": "1999-08-08T01:13:30Z",
              "ms": 934074810267.8151
            },
            "end": {
              "local": "1999-08-08T05:43:30+04:30",
              "utc": "1999-08-08T01:13:30Z",
              "ms": 934074810267.8151
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 03:53 on Sat 7 Aug to 01:14 on Sun 8 Aug.",
          "fact": "1999-08-06T23:23:00Z → 1999-08-07T20:43:45Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:43 on the 7th and 05:44 on the 8th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 7th and is not on the 8th.",
          "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 6582 s"
        },
        {
          "step": "ruling",
          "text": "Kāmikā Ekādaśī, Mashhad, 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 Mashhad, Kāmikā Ekādaśī 1999 falls on Saturday 7 August. Ekādaśī runs from 03:53 on Sat 7 Aug to 01:14 on Sun 8 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-08-09",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1893,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-08-08T22:34:23+04:30",
          "utc": "1999-08-08T18:04:23Z",
          "ms": 934135463226.5918
        },
        "end": {
          "local": "1999-08-09T20:00:58+04:30",
          "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": "1999-08-08T22:34:23+04:30",
          "utc": "1999-08-08T18:04:23Z",
          "ms": 934135463226.5918
        },
        "end": {
          "local": "1999-08-09T20:00:58+04:30",
          "utc": "1999-08-09T15:30:58Z",
          "ms": 934212658141.7462
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-08-08",
          "window": {
            "start": {
              "local": "1999-08-08T19:30:29+04:30",
              "utc": "1999-08-08T15:00:29Z",
              "ms": 934124429083.0372
            },
            "end": {
              "local": "1999-08-08T20:52:20+04:30",
              "utc": "1999-08-08T16:22:20Z",
              "ms": 934129339690.2758
            }
          },
          "covered_min": 0,
          "window_min": 82,
          "qualifies": false
        },
        {
          "local_date": "1999-08-09",
          "window": {
            "start": {
              "local": "1999-08-09T19:29:25+04:30",
              "utc": "1999-08-09T14:59:25Z",
              "ms": 934210764729.0719
            },
            "end": {
              "local": "1999-08-09T20:51:30+04:30",
              "utc": "1999-08-09T16:21:30Z",
              "ms": 934215690373.211
            }
          },
          "covered_min": 32,
          "window_min": 82,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 22:34 on Sun 8 Aug to 20:01 on Mon 9 Aug.",
          "fact": "1999-08-08T18:04:23Z → 1999-08-09T15:30:58Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:30–20:52 on the 8th, 19:29–20:52 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 0 of 82 minutes on the 8th and 32 of 82 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 1893 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1999: Monday 9 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": "1999-08-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Monday 9 August. Trayodaśī runs from 22:34 on Sun 8 Aug to 20:01 on Mon 9 Aug and covers 32 of 82 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/pradosha-vrata?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": "/mashhad/festivals/1999/shivaratri?on=1999-08-09",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15138,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-08-09T20:00:58+04:30",
          "utc": "1999-08-09T15:30:58Z",
          "ms": 934212658141.7462
        },
        "end": {
          "local": "1999-08-10T17:40:04+04:30",
          "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": "1999-08-09T20:00:58+04:30",
          "utc": "1999-08-09T15:30:58Z",
          "ms": 934212658141.7462
        },
        "end": {
          "local": "1999-08-10T17:40:04+04:30",
          "utc": "1999-08-10T13:10:04Z",
          "ms": 934290604132.7664
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-08-09",
          "window": {
            "start": {
              "local": "1999-08-10T00:13:16+04:30",
              "utc": "1999-08-09T19:43:16Z",
              "ms": 934227795894.5938
            },
            "end": {
              "local": "1999-08-10T01:01:16+04:30",
              "utc": "1999-08-09T20:31:16Z",
              "ms": 934230675894.5938
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-08-10",
          "window": {
            "start": {
              "local": "1999-08-11T00:13:07+04:30",
              "utc": "1999-08-10T19:43:07Z",
              "ms": 934314187354.3516
            },
            "end": {
              "local": "1999-08-11T01:01:07+04:30",
              "utc": "1999-08-10T20:31:07Z",
              "ms": 934317067354.3516
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 20:01 on Mon 9 Aug to 17:40 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: 00:13–01:01 on the 9th, 00:13–01:01 on the 10th.",
          "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 9th and 0 of 48 on the 10th.",
          "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 15138 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 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 Mashhad, Śivarātri 1999 falls on Monday 9 August. Caturdaśī runs from 20:01 on Mon 9 Aug to 17:40 on Tue 10 Aug and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/madhusrava-tritiya",
      "festival": "madhusrava-tritiya",
      "name": "Madhusravā Tṛtīyā",
      "everyday": "Hariyali Teej",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-14",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 43,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-08-13T12:59:31+04:30",
          "utc": "1999-08-13T08:29:31Z",
          "ms": 934532971266.4155
        },
        "end": {
          "local": "1999-08-14T12:33:09+04:30",
          "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": "1999-08-13T12:59:31+04:30",
          "utc": "1999-08-13T08:29:31Z",
          "ms": 934532971266.4155
        },
        "end": {
          "local": "1999-08-14T12:33:09+04:30",
          "utc": "1999-08-14T08:03:09Z",
          "ms": 934617788568.7856
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-13",
          "window": {
            "start": {
              "local": "1999-08-13T12:12:14+04:30",
              "utc": "1999-08-13T07:42:14Z",
              "ms": 934530134086.9136
            },
            "end": {
              "local": "1999-08-13T13:00:14+04:30",
              "utc": "1999-08-13T08:30:14Z",
              "ms": 934533014086.9136
            }
          },
          "covered_min": 1,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-08-14",
          "window": {
            "start": {
              "local": "1999-08-14T12:12:03+04:30",
              "utc": "1999-08-14T07:42:03Z",
              "ms": 934616523292.5675
            },
            "end": {
              "local": "1999-08-14T13:00:03+04:30",
              "utc": "1999-08-14T08:30:03Z",
              "ms": 934619403292.5675
            }
          },
          "covered_min": 21,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "paraviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 13:00 on Fri 13 Aug to 12:33 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: 12:12–13:00 on the 13th, 12:12–13:00 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 1 of 48 minutes on the 13th and 21 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Paraviddhā: the second is taken.",
          "fact": "priority: paraviddha → paraviddha · margin 43 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Madhusravā Tṛtīyā, Mashhad, 1999: Saturday 14 August.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "1999-08-14",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Madhusravā Tṛtīyā (Hariyali Teej) 1999 falls on Saturday 14 August. Tṛtīyā runs from 13:00 on Fri 13 Aug to 12:33 on Sat 14 Aug and covers 21 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 1 minutes; by the rule the second midday is taken. It is 0 min 43 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-08-15",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-15",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 790,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-08-14T12:33:09+04:30",
          "utc": "1999-08-14T08:03:09Z",
          "ms": 934617788568.7856
        },
        "end": {
          "local": "1999-08-15T12:46:42+04:30",
          "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": "1999-08-14T12:33:09+04:30",
          "utc": "1999-08-14T08:03:09Z",
          "ms": 934617788568.7856
        },
        "end": {
          "local": "1999-08-15T12:46:42+04:30",
          "utc": "1999-08-15T08:16:42Z",
          "ms": 934705001948.566
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-14",
          "window": {
            "start": {
              "local": "1999-08-14T12:12:03+04:30",
              "utc": "1999-08-14T07:42:03Z",
              "ms": 934616523292.5675
            },
            "end": {
              "local": "1999-08-14T13:00:03+04:30",
              "utc": "1999-08-14T08:30:03Z",
              "ms": 934619403292.5675
            }
          },
          "covered_min": 27,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-08-15",
          "window": {
            "start": {
              "local": "1999-08-15T12:11:52+04:30",
              "utc": "1999-08-15T07:41:52Z",
              "ms": 934702911948.873
            },
            "end": {
              "local": "1999-08-15T12:59:52+04:30",
              "utc": "1999-08-15T08:29:52Z",
              "ms": 934705791948.873
            }
          },
          "covered_min": 35,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 12:33 on Sat 14 Aug to 12:47 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: 12:12–13:00 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 27 of 48 minutes on the 14th and 35 of 48 on the 15th.",
          "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 790 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 1999: Sunday 15 August.",
          "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": "1999-08-15",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-15",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 1999 falls on Sunday 15 August. Caturthī runs from 12:33 on Sat 14 Aug to 12:47 on Sun 15 Aug and covers 35 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 27 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/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-08-15",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/naga-panchami",
      "festival": "naga-panchami",
      "name": "Nāga Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 790,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-08-15T12:46:42+04:30",
          "utc": "1999-08-15T08:16:42Z",
          "ms": 934705001948.566
        },
        "end": {
          "local": "1999-08-16T13:40:15+04:30",
          "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": "1999-08-15T12:46:42+04:30",
          "utc": "1999-08-15T08:16:42Z",
          "ms": 934705001948.566
        },
        "end": {
          "local": "1999-08-16T13:40:15+04:30",
          "utc": "1999-08-16T09:10:15Z",
          "ms": 934794614857.0769
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-15",
          "window": {
            "start": {
              "local": "1999-08-15T12:11:52+04:30",
              "utc": "1999-08-15T07:41:52Z",
              "ms": 934702911948.873
            },
            "end": {
              "local": "1999-08-15T12:59:52+04:30",
              "utc": "1999-08-15T08:29:52Z",
              "ms": 934705791948.873
            }
          },
          "covered_min": 13,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-08-16",
          "window": {
            "start": {
              "local": "1999-08-16T12:11:40+04:30",
              "utc": "1999-08-16T07:41:40Z",
              "ms": 934789300062.6382
            },
            "end": {
              "local": "1999-08-16T12:59:40+04:30",
              "utc": "1999-08-16T08:29:40Z",
              "ms": 934792180062.6382
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "paraviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 12:47 on Sun 15 Aug to 13:40 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 13 of 48 minutes on the 15th and 48 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Paraviddhā: the second is taken.",
          "fact": "priority: paraviddha → paraviddha · margin 790 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī, Mashhad, 1999: Monday 16 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": "1999-08-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Nāga Pañcamī 1999 falls on Monday 16 August. Pañcamī runs from 12:47 on Sun 15 Aug to 13:40 on Mon 16 Aug and covers all of madhyāhna that midday. It also reaches the previous midday for 13 minutes; by the rule the second midday is taken.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-08-22",
      "festival": "ekadashi",
      "name": "Putradā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14053,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-08-22T00:05:47+04:30",
          "utc": "1999-08-21T19:35:47Z",
          "ms": 935264146951.3258
        },
        "end": {
          "local": "1999-08-23T02:01:21+04:30",
          "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": "1999-08-22T00:05:47+04:30",
          "utc": "1999-08-21T19:35:47Z",
          "ms": 935264146951.3258
        },
        "end": {
          "local": "1999-08-23T02:01:21+04:30",
          "utc": "1999-08-22T21:31:21Z",
          "ms": 935357481011.874
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-08-22",
          "window": {
            "start": {
              "local": "1999-08-22T05:54:46+04:30",
              "utc": "1999-08-22T01:24:46Z",
              "ms": 935285086147.9559
            },
            "end": {
              "local": "1999-08-22T05:54:46+04:30",
              "utc": "1999-08-22T01:24:46Z",
              "ms": 935285086147.9559
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-08-23",
          "window": {
            "start": {
              "local": "1999-08-23T05:55:34+04:30",
              "utc": "1999-08-23T01:25:34Z",
              "ms": 935371533915.9572
            },
            "end": {
              "local": "1999-08-23T05:55:34+04:30",
              "utc": "1999-08-23T01:25:34Z",
              "ms": 935371533915.9572
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 00:06 on Sun 22 Aug to 02:01 on Mon 23 Aug.",
          "fact": "1999-08-21T19:35:47Z → 1999-08-22T21:31:21Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:55 on the 22nd and 05:56 on the 23rd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 22nd and is not on the 23rd.",
          "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 14053 s"
        },
        {
          "step": "ruling",
          "text": "Putradā Ekādaśī, Mashhad, 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 Mashhad, Putradā Ekādaśī 1999 falls on Sunday 22 August. Ekādaśī runs from 00:06 on Sun 22 Aug to 02:01 on Mon 23 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/damodara-dvadashi",
      "festival": "damodara-dvadashi",
      "name": "Dāmodara Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31301,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-08-23T02:01:21+04:30",
          "utc": "1999-08-22T21:31:21Z",
          "ms": 935357481011.874
        },
        "end": {
          "local": "1999-08-24T03:28:06+04:30",
          "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": "1999-08-23T02:01:21+04:30",
          "utc": "1999-08-22T21:31:21Z",
          "ms": 935357481011.874
        },
        "end": {
          "local": "1999-08-24T03:28:06+04:30",
          "utc": "1999-08-23T22:58:06Z",
          "ms": 935449086012.9054
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-23",
          "window": {
            "start": {
              "local": "1999-08-23T12:10:02+04:30",
              "utc": "1999-08-23T07:40:02Z",
              "ms": 935394002491.8231
            },
            "end": {
              "local": "1999-08-23T12:58:02+04:30",
              "utc": "1999-08-23T08:28:02Z",
              "ms": 935396882491.8231
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-08-24",
          "window": {
            "start": {
              "local": "1999-08-24T12:09:47+04:30",
              "utc": "1999-08-24T07:39:47Z",
              "ms": 935480386649.3147
            },
            "end": {
              "local": "1999-08-24T12:57:47+04:30",
              "utc": "1999-08-24T08:27:47Z",
              "ms": 935483266649.3147
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 02:01 on Mon 23 Aug to 03:28 on Tue 24 Aug.",
          "fact": "1999-08-22T21:31:21Z → 1999-08-23T22:58:06Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 23rd, 12:10–12:58 on the 24th.",
          "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 23rd and 0 of 48 on the 24th.",
          "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 31301 s"
        },
        {
          "step": "ruling",
          "text": "Dāmodara Dvādaśī, Mashhad, 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 Mashhad, Dāmodara Dvādaśī 1999 falls on Monday 23 August. Dvādaśī runs from 02:01 on Mon 23 Aug to 03:28 on Tue 24 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-08-24",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24584,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-08-24T03:28:06+04:30",
          "utc": "1999-08-23T22:58:06Z",
          "ms": 935449086012.9054
        },
        "end": {
          "local": "1999-08-25T04:20:34+04:30",
          "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": "1999-08-24T03:28:06+04:30",
          "utc": "1999-08-23T22:58:06Z",
          "ms": 935449086012.9054
        },
        "end": {
          "local": "1999-08-25T04:20:34+04:30",
          "utc": "1999-08-24T23:50:34Z",
          "ms": 935538633591.6915
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-08-23",
          "window": {
            "start": {
              "local": "1999-08-23T19:12:31+04:30",
              "utc": "1999-08-23T14:42:31Z",
              "ms": 935419351067.6891
            },
            "end": {
              "local": "1999-08-23T20:38:22+04:30",
              "utc": "1999-08-23T16:08:22Z",
              "ms": 935424501803.5544
            }
          },
          "covered_min": 0,
          "window_min": 86,
          "qualifies": false
        },
        {
          "local_date": "1999-08-24",
          "window": {
            "start": {
              "local": "1999-08-24T19:11:12+04:30",
              "utc": "1999-08-24T14:41:12Z",
              "ms": 935505671711.9504
            },
            "end": {
              "local": "1999-08-24T20:37:19+04:30",
              "utc": "1999-08-24T16:07:19Z",
              "ms": 935510839371.8427
            }
          },
          "covered_min": 86,
          "window_min": 86,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 03:28 on Tue 24 Aug to 04:21 on Wed 25 Aug.",
          "fact": "1999-08-23T22:58:06Z → 1999-08-24T23:50:34Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:13–20:38 on the 23rd, 19:11–20:37 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 0 of 86 minutes on the 23rd and 86 of 86 on the 24th.",
          "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 24584 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 1999: Tuesday 24 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": "1999-08-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 1999 falls on Tuesday 24 August. Trayodaśī runs from 03:28 on Tue 24 Aug to 04:21 on Wed 25 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/pradosha-vrata?on=1999-08-24",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/raksha-bandhana",
      "festival": "raksha-bandhana",
      "name": "Rakṣā Bandhana",
      "everyday": "Rakhi",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6055,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-08-26T04:36:47+04:30",
          "utc": "1999-08-26T00:06:47Z",
          "ms": 935626007066.9425
        },
        "end": {
          "local": "1999-08-27T04:17:49+04:30",
          "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": "1999-08-26T16:31:32+04:30",
          "utc": "1999-08-26T12:01:32Z",
          "ms": 935668892262.2249
        },
        "end": {
          "local": "1999-08-27T04:17:49+04:30",
          "utc": "1999-08-26T23:47:49Z",
          "ms": 935711268854.7804
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "1999-08-26",
          "window": {
            "start": {
              "local": "1999-08-26T05:57:57+04:30",
              "utc": "1999-08-26T01:27:57Z",
              "ms": 935630876641.9834
            },
            "end": {
              "local": "1999-08-27T05:58:44+04:30",
              "utc": "1999-08-27T01:28:44Z",
              "ms": 935717324033.4434
            }
          },
          "covered_min": 706,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "1999-08-27",
          "window": {
            "start": {
              "local": "1999-08-27T05:58:44+04:30",
              "utc": "1999-08-27T01:28:44Z",
              "ms": 935717324033.4434
            },
            "end": {
              "local": "1999-08-28T05:59:31+04:30",
              "utc": "1999-08-28T01:29:31Z",
              "ms": 935803771341.2607
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 04:37 on Thu 26 Aug to 04:18 on Fri 27 Aug. Its second half begins at 16:32 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 05:58 on the 26th, and from 05:59 on the 27th.",
          "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 706 of 1441 minutes on the 26th and 0 of 1441 on the 27th.",
          "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 6055 s"
        },
        {
          "step": "ruling",
          "text": "Rakṣā Bandhana, Mashhad, 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 Mashhad, Rakṣā Bandhana (Rakhi) 1999 falls on Thursday 26 August. The second half of Pūrṇimā runs from 16:32 on Thu 26 Aug to 04:18 on Fri 27 Aug and lies within that day, sunrise to sunrise.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/rishi-tarpana",
      "festival": "rishi-tarpana",
      "name": "Ṛṣi Tarpaṇa",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27147,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-08-26T04:36:47+04:30",
          "utc": "1999-08-26T00:06:47Z",
          "ms": 935626007066.9425
        },
        "end": {
          "local": "1999-08-27T04:17:49+04:30",
          "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": "1999-08-26T04:36:47+04:30",
          "utc": "1999-08-26T00:06:47Z",
          "ms": 935626007066.9425
        },
        "end": {
          "local": "1999-08-27T04:17:49+04:30",
          "utc": "1999-08-26T23:47:49Z",
          "ms": 935711268854.7804
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-26",
          "window": {
            "start": {
              "local": "1999-08-26T12:09:14+04:30",
              "utc": "1999-08-26T07:39:14Z",
              "ms": 935653153686.583
            },
            "end": {
              "local": "1999-08-26T12:57:14+04:30",
              "utc": "1999-08-26T08:27:14Z",
              "ms": 935656033686.583
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-08-27",
          "window": {
            "start": {
              "local": "1999-08-27T12:08:57+04:30",
              "utc": "1999-08-27T07:38:57Z",
              "ms": 935739536601.5232
            },
            "end": {
              "local": "1999-08-27T12:56:57+04:30",
              "utc": "1999-08-27T08:26:57Z",
              "ms": 935742416601.5232
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 04:37 on Thu 26 Aug to 04:18 on Fri 27 Aug.",
          "fact": "1999-08-26T00:06:47Z → 1999-08-26T23:47:49Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 26th, 12:09–12:57 on the 27th.",
          "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 26th and 0 of 48 on the 27th.",
          "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 27147 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Tarpaṇa, Mashhad, 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 Mashhad, Ṛṣi Tarpaṇa 1999 falls on Thursday 26 August. Pūrṇimā runs from 04:37 on Thu 26 Aug to 04:18 on Fri 27 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ashunya-shayana-vrata",
      "festival": "ashunya-shayana-vrata",
      "name": "Aśūnya Śayana Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21353,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1999-08-28T03:26:54+04:30",
          "utc": "1999-08-27T22:56:54Z",
          "ms": 935794614065.3729
        },
        "end": {
          "local": "1999-08-29T02:08:43+04:30",
          "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": "1999-08-28T03:26:54+04:30",
          "utc": "1999-08-27T22:56:54Z",
          "ms": 935794614065.3729
        },
        "end": {
          "local": "1999-08-29T02:08:43+04:30",
          "utc": "1999-08-28T21:38:43Z",
          "ms": 935876322825.5887
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-08-27",
          "window": {
            "start": {
              "local": "1999-08-27T19:37:12+04:30",
              "utc": "1999-08-27T15:07:12Z",
              "ms": 935766431657.6692
            },
            "end": {
              "local": "1999-08-27T19:37:12+04:30",
              "utc": "1999-08-27T15:07:12Z",
              "ms": 935766431657.6692
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-08-28",
          "window": {
            "start": {
              "local": "1999-08-28T20:12:50+04:30",
              "utc": "1999-08-28T15:42:50Z",
              "ms": 935854969545.1733
            },
            "end": {
              "local": "1999-08-28T20:12:50+04:30",
              "utc": "1999-08-28T15:42:50Z",
              "ms": 935854969545.1733
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 03:27 on Sat 28 Aug to 02:09 on Sun 29 Aug.",
          "fact": "1999-08-27T22:56:54Z → 1999-08-28T21:38:43Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:37 on the 27th and 20:13 on the 28th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be current at moonrise. It is not on the 27th and is 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 21353 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata, Mashhad, 1999: Saturday 28 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": "1999-08-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Aśūnya Śayana Vrata 1999 falls on Saturday 28 August. Dvitīyā runs from 03:27 on Sat 28 Aug to 02:09 on Sun 29 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/kajjali-tritiya",
      "festival": "kajjali-tritiya",
      "name": "Kajjalī Tṛtīyā",
      "everyday": "Kajari Teej",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35978,
      "anga": {
        "type": "tithi",
        "index": 17,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-08-29T02:08:43+04:30",
          "utc": "1999-08-28T21:38:43Z",
          "ms": 935876322825.5887
        },
        "end": {
          "local": "1999-08-30T00:28:38+04:30",
          "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": "1999-08-29T02:08:43+04:30",
          "utc": "1999-08-28T21:38:43Z",
          "ms": 935876322825.5887
        },
        "end": {
          "local": "1999-08-30T00:28:38+04:30",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-29",
          "window": {
            "start": {
              "local": "1999-08-29T12:08:21+04:30",
              "utc": "1999-08-29T07:38:21Z",
              "ms": 935912301317.8186
            },
            "end": {
              "local": "1999-08-29T12:56:21+04:30",
              "utc": "1999-08-29T08:26:21Z",
              "ms": 935915181317.8186
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-08-30",
          "window": {
            "start": {
              "local": "1999-08-30T12:08:03+04:30",
              "utc": "1999-08-30T07:38:03Z",
              "ms": 935998683158.2859
            },
            "end": {
              "local": "1999-08-30T12:56:03+04:30",
              "utc": "1999-08-30T08:26:03Z",
              "ms": 936001563158.2859
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 02:09 on Sun 29 Aug to 00:29 on Mon 30 Aug.",
          "fact": "1999-08-28T21:38:43Z → 1999-08-29T19:58:38Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 29th, 12:08–12:56 on the 30th.",
          "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 29th and 0 of 48 on the 30th.",
          "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 35978 s"
        },
        {
          "step": "ruling",
          "text": "Kajjalī Tṛtīyā, Mashhad, 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 Mashhad, Kajjalī Tṛtīyā (Kajari Teej) 1999 falls on Sunday 29 August. Tṛtīyā runs from 02:09 on Sun 29 Aug to 00:29 on Mon 30 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/bahula-chaturthi",
      "festival": "bahula-chaturthi",
      "name": "Bahulā Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12552,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-08-30T00:28:38+04:30",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        },
        "end": {
          "local": "1999-08-30T22:32:13+04:30",
          "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": "1999-08-30T00:28:38+04:30",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        },
        "end": {
          "local": "1999-08-30T22:32:13+04:30",
          "utc": "1999-08-30T18:02:13Z",
          "ms": 936036133080.4462
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "1999-08-29",
          "window": {
            "start": {
              "local": "1999-08-29T16:27:35+04:30",
              "utc": "1999-08-29T11:57:35Z",
              "ms": 935927854965.0492
            },
            "end": {
              "local": "1999-08-29T19:04:24+04:30",
              "utc": "1999-08-29T14:34:24Z",
              "ms": 935937264063.2029
            }
          },
          "covered_min": 0,
          "window_min": 157,
          "qualifies": false
        },
        {
          "local_date": "1999-08-30",
          "window": {
            "start": {
              "local": "1999-08-30T16:26:38+04:30",
              "utc": "1999-08-30T11:56:38Z",
              "ms": 936014197612.3495
            },
            "end": {
              "local": "1999-08-30T19:03:01+04:30",
              "utc": "1999-08-30T14:33:01Z",
              "ms": 936023580581.7252
            }
          },
          "covered_min": 156,
          "window_min": 156,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 00:29 on Mon 30 Aug to 22:32 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: 16:28–19:04 on the 29th, 16:27–19:03 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 0 of 157 minutes on the 29th and 156 of 156 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 12552 s"
        },
        {
          "step": "ruling",
          "text": "Bahulā Caturthī, Mashhad, 1999: Monday 30 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": "1999-08-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Bahulā Caturthī 1999 falls on Monday 30 August. Caturthī runs from 00:29 on Mon 30 Aug to 22:32 on Mon 30 Aug and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-08-30",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-08-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4144,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-08-30T00:28:38+04:30",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        },
        "end": {
          "local": "1999-08-30T22:32:13+04:30",
          "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": "1999-08-30T00:28:38+04:30",
          "utc": "1999-08-29T19:58:38Z",
          "ms": 935956718298.5609
        },
        "end": {
          "local": "1999-08-30T22:32:13+04:30",
          "utc": "1999-08-30T18:02:13Z",
          "ms": 936036133080.4462
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-08-29",
          "window": {
            "start": {
              "local": "1999-08-29T20:47:46+04:30",
              "utc": "1999-08-29T16:17:46Z",
              "ms": 935943466046.5854
            },
            "end": {
              "local": "1999-08-29T20:47:46+04:30",
              "utc": "1999-08-29T16:17:46Z",
              "ms": 935943466046.5854
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-08-30",
          "window": {
            "start": {
              "local": "1999-08-30T21:23:09+04:30",
              "utc": "1999-08-30T16:53:09Z",
              "ms": 936031989099.7795
            },
            "end": {
              "local": "1999-08-30T21:23:09+04:30",
              "utc": "1999-08-30T16:53:09Z",
              "ms": 936031989099.7795
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 00:29 on Mon 30 Aug to 22:32 on Mon 30 Aug.",
          "fact": "1999-08-29T19:58:38Z → 1999-08-30T18:02:13Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:48 on the 29th and 21:23 on the 30th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 29th and is 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 4144 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 1999: Monday 30 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": "1999-08-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-08-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Monday 30 August. Caturthī runs from 00:29 on Mon 30 Aug to 22:32 on Mon 30 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/sankashta-chaturthi?on=1999-08-30",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/hala-shashthi",
      "festival": "hala-shashthi",
      "name": "Hala Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18932,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-08-31T20:24:44+04:30",
          "utc": "1999-08-31T15:54:44Z",
          "ms": 936114884406.217
        },
        "end": {
          "local": "1999-09-01T18:10:58+04:30",
          "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": "1999-08-31T20:24:44+04:30",
          "utc": "1999-08-31T15:54:44Z",
          "ms": 936114884406.217
        },
        "end": {
          "local": "1999-09-01T18:10:58+04:30",
          "utc": "1999-09-01T13:40:58Z",
          "ms": 936193257902.7037
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-08-31",
          "window": {
            "start": {
              "local": "1999-08-31T12:07:45+04:30",
              "utc": "1999-08-31T07:37:45Z",
              "ms": 936085064679.9703
            },
            "end": {
              "local": "1999-08-31T12:55:45+04:30",
              "utc": "1999-08-31T08:25:45Z",
              "ms": 936087944679.9703
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-09-01",
          "window": {
            "start": {
              "local": "1999-09-01T12:07:26+04:30",
              "utc": "1999-09-01T07:37:26Z",
              "ms": 936171445902.4025
            },
            "end": {
              "local": "1999-09-01T12:55:26+04:30",
              "utc": "1999-09-01T08:25:26Z",
              "ms": 936174325902.4025
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 20:25 on Tue 31 Aug to 18:11 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, 12:07–12:55 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 0 of 48 minutes on the 31st and 48 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 18932 s"
        },
        {
          "step": "ruling",
          "text": "Hala Ṣaṣṭhī, Mashhad, 1999: Wednesday 1 September.",
          "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": "1999-09-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Hala Ṣaṣṭhī 1999 falls on Wednesday 1 September. Ṣaṣṭhī runs from 20:25 on Tue 31 Aug to 18:11 on Wed 1 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/janmashtami",
      "festival": "janmashtami",
      "name": "Janmāṣṭamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29551,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-09-02T15:55:00+04:30",
          "utc": "1999-09-02T11:25:00Z",
          "ms": 936271499660.2216
        },
        "end": {
          "local": "1999-09-03T13:40:16+04:30",
          "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": "1999-09-02T15:55:00+04:30",
          "utc": "1999-09-02T11:25:00Z",
          "ms": 936271499660.2216
        },
        "end": {
          "local": "1999-09-03T13:40:16+04:30",
          "utc": "1999-09-03T09:10:16Z",
          "ms": 936349816428.8888
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-09-02",
          "window": {
            "start": {
              "local": "1999-09-03T00:07:30+04:30",
              "utc": "1999-09-02T19:37:30Z",
              "ms": 936301050328.241
            },
            "end": {
              "local": "1999-09-03T00:55:30+04:30",
              "utc": "1999-09-02T20:25:30Z",
              "ms": 936303930328.241
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-03",
          "window": {
            "start": {
              "local": "1999-09-04T00:07:11+04:30",
              "utc": "1999-09-03T19:37:11Z",
              "ms": 936387430992.1719
            },
            "end": {
              "local": "1999-09-04T00:55:11+04:30",
              "utc": "1999-09-03T20:25:11Z",
              "ms": 936390310992.1719
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 15:55 on Thu 2 Sep to 13:40 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 2nd, 00:07–00:55 on the 3rd.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during niśītha. It covers 48 of 48 minutes on the 2nd and 0 of 48 on the 3rd.",
          "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 29551 s"
        },
        {
          "step": "ruling",
          "text": "Janmāṣṭamī, Mashhad, 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 Mashhad, Janmāṣṭamī 1999 falls on Thursday 2 September. Aṣṭamī runs from 15:55 on Thu 2 Sep to 13:40 on Fri 3 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shitala-saptami",
      "festival": "shitala-saptami",
      "name": "Śītalā Saptamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10793,
      "anga": {
        "type": "tithi",
        "index": 21,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-09-01T18:10:58+04:30",
          "utc": "1999-09-01T13:40:58Z",
          "ms": 936193257902.7037
        },
        "end": {
          "local": "1999-09-02T15:55:00+04:30",
          "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": "1999-09-01T18:10:58+04:30",
          "utc": "1999-09-01T13:40:58Z",
          "ms": 936193257902.7037
        },
        "end": {
          "local": "1999-09-02T15:55:00+04:30",
          "utc": "1999-09-02T11:25:00Z",
          "ms": 936271499660.2216
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-01",
          "window": {
            "start": {
              "local": "1999-09-01T12:07:26+04:30",
              "utc": "1999-09-01T07:37:26Z",
              "ms": 936171445902.4025
            },
            "end": {
              "local": "1999-09-01T12:55:26+04:30",
              "utc": "1999-09-01T08:25:26Z",
              "ms": 936174325902.4025
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-09-02",
          "window": {
            "start": {
              "local": "1999-09-02T12:07:07+04:30",
              "utc": "1999-09-02T07:37:07Z",
              "ms": 936257826844.5515
            },
            "end": {
              "local": "1999-09-02T12:55:07+04:30",
              "utc": "1999-09-02T08:25:07Z",
              "ms": 936260706844.5515
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 18:11 on Wed 1 Sep to 15:55 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: 12:07–12:55 on the 1st, 12:07–12:55 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 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 midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 10793 s"
        },
        {
          "step": "ruling",
          "text": "Śītalā Saptamī, Mashhad, 1999: Thursday 2 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": "1999-09-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śītalā Saptamī 1999 falls on Thursday 2 September. Saptamī runs from 18:11 on Wed 1 Sep to 15:55 on Thu 2 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-09-06",
      "festival": "ekadashi",
      "name": "Ajā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5101,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-09-05T09:25:58+04:30",
          "utc": "1999-09-05T04:55:58Z",
          "ms": 936507357575.3002
        },
        "end": {
          "local": "1999-09-06T07:31:35+04:30",
          "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": "1999-09-05T09:25:58+04:30",
          "utc": "1999-09-05T04:55:58Z",
          "ms": 936507357575.3002
        },
        "end": {
          "local": "1999-09-06T07:31:35+04:30",
          "utc": "1999-09-06T03:01:35Z",
          "ms": 936586895346.2019
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-09-05",
          "window": {
            "start": {
              "local": "1999-09-05T06:05:48+04:30",
              "utc": "1999-09-05T01:35:48Z",
              "ms": 936495347702.681
            },
            "end": {
              "local": "1999-09-05T06:05:48+04:30",
              "utc": "1999-09-05T01:35:48Z",
              "ms": 936495347702.681
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-09-06",
          "window": {
            "start": {
              "local": "1999-09-06T06:06:35+04:30",
              "utc": "1999-09-06T01:36:35Z",
              "ms": 936581794587.8451
            },
            "end": {
              "local": "1999-09-06T06:06:35+04:30",
              "utc": "1999-09-06T01:36:35Z",
              "ms": 936581794587.8451
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 09:26 on Sun 5 Sep to 07:32 on Mon 6 Sep.",
          "fact": "1999-09-05T04:55:58Z → 1999-09-06T03:01:35Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:06 on the 5th and 06:07 on the 6th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 5th and is 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 5101 s"
        },
        {
          "step": "ruling",
          "text": "Ajā Ekādaśī, Mashhad, 1999: Monday 6 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": "1999-09-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ajā Ekādaśī 1999 falls on Monday 6 September. Ekādaśī runs from 09:26 on Sun 5 Sep to 07:32 on Mon 6 Sep and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/ekadashi?on=1999-09-06",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/pradosha-vrata?on=1999-09-07",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28869,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-09-07T05:49:28+04:30",
          "utc": "1999-09-07T01:19:28Z",
          "ms": 936667168306.8716
        },
        "end": {
          "local": "1999-09-08T04:22:55+04:30",
          "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": "1999-09-07T05:49:28+04:30",
          "utc": "1999-09-07T01:19:28Z",
          "ms": 936667168306.8716
        },
        "end": {
          "local": "1999-09-08T04:22:55+04:30",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-09-06",
          "window": {
            "start": {
              "local": "1999-09-06T18:53:02+04:30",
              "utc": "1999-09-06T14:23:02Z",
              "ms": 936627781729.7484
            },
            "end": {
              "local": "1999-09-06T20:22:56+04:30",
              "utc": "1999-09-06T15:52:56Z",
              "ms": 936633176359.5687
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        },
        {
          "local_date": "1999-09-07",
          "window": {
            "start": {
              "local": "1999-09-07T18:51:34+04:30",
              "utc": "1999-09-07T14:21:34Z",
              "ms": 936714094453.6346
            },
            "end": {
              "local": "1999-09-07T20:21:47+04:30",
              "utc": "1999-09-07T15:51:47Z",
              "ms": 936719506966.8293
            }
          },
          "covered_min": 90,
          "window_min": 90,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 05:49 on Tue 7 Sep to 04:23 on Wed 8 Sep.",
          "fact": "1999-09-07T01:19:28Z → 1999-09-07T23:52:55Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:53–20:23 on the 6th, 18:52–20:22 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 90 minutes on the 6th and 90 of 90 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 28869 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 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 Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Tuesday 7 September. Trayodaśī runs from 05:49 on Tue 7 Sep to 04:23 on Wed 8 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/aghora-chaturdashi",
      "festival": "aghora-chaturdashi",
      "name": "Aghora Caturdaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24910,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-09-08T04:22:55+04:30",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        },
        "end": {
          "local": "1999-09-09T03:15:47+04:30",
          "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": "1999-09-08T04:22:55+04:30",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        },
        "end": {
          "local": "1999-09-09T03:15:47+04:30",
          "utc": "1999-09-08T22:45:47Z",
          "ms": 936830746835.1794
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-09-07",
          "window": {
            "start": {
              "local": "1999-09-07T18:51:34+04:30",
              "utc": "1999-09-07T14:21:34Z",
              "ms": 936714094453.6346
            },
            "end": {
              "local": "1999-09-07T20:21:47+04:30",
              "utc": "1999-09-07T15:51:47Z",
              "ms": 936719506966.8293
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        },
        {
          "local_date": "1999-09-08",
          "window": {
            "start": {
              "local": "1999-09-08T18:50:07+04:30",
              "utc": "1999-09-08T14:20:07Z",
              "ms": 936800406825.909
            },
            "end": {
              "local": "1999-09-08T20:20:37+04:30",
              "utc": "1999-09-08T15:50:37Z",
              "ms": 936805837267.6222
            }
          },
          "covered_min": 91,
          "window_min": 91,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 04:23 on Wed 8 Sep to 03:16 on Thu 9 Sep.",
          "fact": "1999-09-07T23:52:55Z → 1999-09-08T22:45:47Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:22 on the 7th, 18:50–20:21 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 0 of 90 minutes on the 7th and 91 of 91 on the 8th.",
          "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 24910 s"
        },
        {
          "step": "ruling",
          "text": "Aghora Caturdaśī, Mashhad, 1999: Wednesday 8 September.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "1999-09-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Aghora Caturdaśī 1999 falls on Wednesday 8 September. Caturdaśī runs from 04:23 on Wed 8 Sep to 03:16 on Thu 9 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shivaratri?on=1999-09-08",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8536,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-09-08T04:22:55+04:30",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        },
        "end": {
          "local": "1999-09-09T03:15:47+04:30",
          "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": "1999-09-08T04:22:55+04:30",
          "utc": "1999-09-07T23:52:55Z",
          "ms": 936748375484.997
        },
        "end": {
          "local": "1999-09-09T03:15:47+04:30",
          "utc": "1999-09-08T22:45:47Z",
          "ms": 936830746835.1794
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-09-07",
          "window": {
            "start": {
              "local": "1999-09-08T00:05:51+04:30",
              "utc": "1999-09-07T19:35:51Z",
              "ms": 936732951378.1147
            },
            "end": {
              "local": "1999-09-08T00:53:51+04:30",
              "utc": "1999-09-07T20:23:51Z",
              "ms": 936735831378.1147
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-09-08",
          "window": {
            "start": {
              "local": "1999-09-09T00:05:31+04:30",
              "utc": "1999-09-08T19:35:31Z",
              "ms": 936819330982.3331
            },
            "end": {
              "local": "1999-09-09T00:53:31+04:30",
              "utc": "1999-09-08T20:23:31Z",
              "ms": 936822210982.3331
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 04:23 on Wed 8 Sep to 03:16 on Thu 9 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 0 of 48 minutes on the 7th and 48 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 8536 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 1999: Wednesday 8 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": "1999-09-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 1999 falls on Wednesday 8 September. Caturdaśī runs from 04:23 on Wed 8 Sep to 03:16 on Thu 9 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/shivaratri?on=1999-09-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/rudra-vrata",
      "festival": "rudra-vrata",
      "name": "Rudra Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34331,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-09-10T02:32:15+04:30",
          "utc": "1999-09-09T22:02:15Z",
          "ms": 936914535349.9851
        },
        "end": {
          "local": "1999-09-11T02:16:35+04:30",
          "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": "1999-09-10T02:32:15+04:30",
          "utc": "1999-09-09T22:02:15Z",
          "ms": 936914535349.9851
        },
        "end": {
          "local": "1999-09-11T02:16:35+04:30",
          "utc": "1999-09-10T21:46:35Z",
          "ms": 936999995480.404
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-10",
          "window": {
            "start": {
              "local": "1999-09-10T12:04:26+04:30",
              "utc": "1999-09-10T07:34:26Z",
              "ms": 936948866290.9656
            },
            "end": {
              "local": "1999-09-10T12:52:26+04:30",
              "utc": "1999-09-10T08:22:26Z",
              "ms": 936951746290.9656
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-11",
          "window": {
            "start": {
              "local": "1999-09-11T12:04:05+04:30",
              "utc": "1999-09-11T07:34:05Z",
              "ms": 937035245436.207
            },
            "end": {
              "local": "1999-09-11T12:52:05+04:30",
              "utc": "1999-09-11T08:22:05Z",
              "ms": 937038125436.207
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 02:32 on Fri 10 Sep to 02:17 on Sat 11 Sep.",
          "fact": "1999-09-09T22:02:15Z → 1999-09-10T21:46:35Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 10th, 12:04–12:52 on the 11th.",
          "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 10th and 0 of 48 on the 11th.",
          "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 34331 s"
        },
        {
          "step": "ruling",
          "text": "Rudra Vrata, Mashhad, 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 Mashhad, Rudra Vrata 1999 falls on Friday 10 September. Pratipadā runs from 02:32 on Fri 10 Sep to 02:17 on Sat 11 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/haritalika-vrata",
      "festival": "haritalika-vrata",
      "name": "Haritālikā Vrata",
      "everyday": "Hartalika Teej",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31280,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "1999-09-12T02:32:27+04:30",
          "utc": "1999-09-11T22:02:27Z",
          "ms": 937087346745.8887
        },
        "end": {
          "local": "1999-09-13T03:22:03+04:30",
          "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": "1999-09-12T02:32:27+04:30",
          "utc": "1999-09-11T22:02:27Z",
          "ms": 937087346745.8887
        },
        "end": {
          "local": "1999-09-13T03:22:03+04:30",
          "utc": "1999-09-12T22:52:03Z",
          "ms": 937176723492.0656
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-12",
          "window": {
            "start": {
              "local": "1999-09-12T12:03:44+04:30",
              "utc": "1999-09-12T07:33:44Z",
              "ms": 937121624456.3875
            },
            "end": {
              "local": "1999-09-12T12:51:44+04:30",
              "utc": "1999-09-12T08:21:44Z",
              "ms": 937124504456.3875
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-13",
          "window": {
            "start": {
              "local": "1999-09-13T12:03:23+04:30",
              "utc": "1999-09-13T07:33:23Z",
              "ms": 937208003367.6709
            },
            "end": {
              "local": "1999-09-13T12:51:23+04:30",
              "utc": "1999-09-13T08:21:23Z",
              "ms": 937210883367.6709
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 02:32 on Sun 12 Sep to 03:22 on Mon 13 Sep.",
          "fact": "1999-09-11T22:02:27Z → 1999-09-12T22:52:03Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 12th, 12:03–12:51 on the 13th.",
          "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 12th and 0 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: paraviddha → only-day · margin 31280 s"
        },
        {
          "step": "ruling",
          "text": "Haritālikā Vrata, Mashhad, 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 Mashhad, Haritālikā Vrata (Hartalika Teej) 1999 falls on Sunday 12 September. Tṛtīyā runs from 02:32 on Sun 12 Sep to 03:22 on Mon 13 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ganesha-chaturthi",
      "festival": "ganesha-chaturthi",
      "name": "Gaṇeśa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26266,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-09-13T03:22:03+04:30",
          "utc": "1999-09-12T22:52:03Z",
          "ms": 937176723492.0656
        },
        "end": {
          "local": "1999-09-14T04:45:16+04:30",
          "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": "1999-09-13T03:22:03+04:30",
          "utc": "1999-09-12T22:52:03Z",
          "ms": 937176723492.0656
        },
        "end": {
          "local": "1999-09-14T04:45:16+04:30",
          "utc": "1999-09-14T00:15:16Z",
          "ms": 937268115837.0543
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-13",
          "window": {
            "start": {
              "local": "1999-09-13T12:03:23+04:30",
              "utc": "1999-09-13T07:33:23Z",
              "ms": 937208003367.6709
            },
            "end": {
              "local": "1999-09-13T12:51:23+04:30",
              "utc": "1999-09-13T08:21:23Z",
              "ms": 937210883367.6709
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-14",
          "window": {
            "start": {
              "local": "1999-09-14T12:03:02+04:30",
              "utc": "1999-09-14T07:33:02Z",
              "ms": 937294382186.8958
            },
            "end": {
              "local": "1999-09-14T12:51:02+04:30",
              "utc": "1999-09-14T08:21:02Z",
              "ms": 937297262186.8958
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 03:22 on Mon 13 Sep to 04:45 on Tue 14 Sep.",
          "fact": "1999-09-12T22:52:03Z → 1999-09-14T00:15:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 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": "Caturthī 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: purvaviddha → only-day · margin 26266 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Caturthī, Mashhad, 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 Mashhad, Gaṇeśa Caturthī 1999 falls on Monday 13 September. Caturthī runs from 03:22 on Mon 13 Sep to 04:45 on Tue 14 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/rishi-panchami",
      "festival": "rishi-panchami",
      "name": "Ṛṣi Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19447,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-09-14T04:45:16+04:30",
          "utc": "1999-09-14T00:15:16Z",
          "ms": 937268115837.0543
        },
        "end": {
          "local": "1999-09-15T06:38:33+04:30",
          "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": "1999-09-14T04:45:16+04:30",
          "utc": "1999-09-14T00:15:16Z",
          "ms": 937268115837.0543
        },
        "end": {
          "local": "1999-09-15T06:38:33+04:30",
          "utc": "1999-09-15T02:08:33Z",
          "ms": 937361313448.3031
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-14",
          "window": {
            "start": {
              "local": "1999-09-14T12:03:02+04:30",
              "utc": "1999-09-14T07:33:02Z",
              "ms": 937294382186.8958
            },
            "end": {
              "local": "1999-09-14T12:51:02+04:30",
              "utc": "1999-09-14T08:21:02Z",
              "ms": 937297262186.8958
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-15",
          "window": {
            "start": {
              "local": "1999-09-15T12:02:41+04:30",
              "utc": "1999-09-15T07:32:41Z",
              "ms": 937380760931.8391
            },
            "end": {
              "local": "1999-09-15T12:50:41+04:30",
              "utc": "1999-09-15T08:20:41Z",
              "ms": 937383640931.8391
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 04:45 on Tue 14 Sep to 06:39 on Wed 15 Sep.",
          "fact": "1999-09-14T00:15:16Z → 1999-09-15T02:08:33Z"
        },
        {
          "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": "Pañcamī 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. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: disputed → only-day · margin 19447 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Pañcamī, Mashhad, 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 Mashhad, Ṛṣi Pañcamī 1999 falls on Tuesday 14 September. Pañcamī runs from 04:45 on Tue 14 Sep to 06:39 on Wed 15 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/surya-shashthi-bhadrapada",
      "festival": "surya-shashthi-bhadrapada",
      "name": "Sūrya Ṣaṣṭhī (Bhādrapada)",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11268,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-09-15T06:38:33+04:30",
          "utc": "1999-09-15T02:08:33Z",
          "ms": 937361313448.3031
        },
        "end": {
          "local": "1999-09-16T08:54:31+04:30",
          "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": "1999-09-15T06:38:33+04:30",
          "utc": "1999-09-15T02:08:33Z",
          "ms": 937361313448.3031
        },
        "end": {
          "local": "1999-09-16T08:54:31+04:30",
          "utc": "1999-09-16T04:24:31Z",
          "ms": 937455871216.7715
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-15",
          "window": {
            "start": {
              "local": "1999-09-15T12:02:41+04:30",
              "utc": "1999-09-15T07:32:41Z",
              "ms": 937380760931.8391
            },
            "end": {
              "local": "1999-09-15T12:50:41+04:30",
              "utc": "1999-09-15T08:20:41Z",
              "ms": 937383640931.8391
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-16",
          "window": {
            "start": {
              "local": "1999-09-16T12:02:20+04:30",
              "utc": "1999-09-16T07:32:20Z",
              "ms": 937467139619.9518
            },
            "end": {
              "local": "1999-09-16T12:50:20+04:30",
              "utc": "1999-09-16T08:20:20Z",
              "ms": 937470019619.9518
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 06:39 on Wed 15 Sep to 08:55 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: 12:03–12:51 on the 15th, 12:02–12:50 on the 16th.",
          "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 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 11268 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Mashhad, 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 Mashhad, Sūrya Ṣaṣṭhī (Bhādrapada) 1999 falls on Wednesday 15 September. Ṣaṣṭhī runs from 06:39 on Wed 15 Sep to 08:55 on Thu 16 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/muktabharana-vrata",
      "festival": "muktabharana-vrata",
      "name": "Muktābharaṇa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2399,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-09-16T08:54:31+04:30",
          "utc": "1999-09-16T04:24:31Z",
          "ms": 937455871216.7715
        },
        "end": {
          "local": "1999-09-17T11:21:59+04:30",
          "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": "1999-09-16T08:54:31+04:30",
          "utc": "1999-09-16T04:24:31Z",
          "ms": 937455871216.7715
        },
        "end": {
          "local": "1999-09-17T11:21:59+04:30",
          "utc": "1999-09-17T06:51:59Z",
          "ms": 937551118890.301
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-16",
          "window": {
            "start": {
              "local": "1999-09-16T12:02:20+04:30",
              "utc": "1999-09-16T07:32:20Z",
              "ms": 937467139619.9518
            },
            "end": {
              "local": "1999-09-16T12:50:20+04:30",
              "utc": "1999-09-16T08:20:20Z",
              "ms": 937470019619.9518
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-17",
          "window": {
            "start": {
              "local": "1999-09-17T12:01:58+04:30",
              "utc": "1999-09-17T07:31:58Z",
              "ms": 937553518270.8008
            },
            "end": {
              "local": "1999-09-17T12:49:58+04:30",
              "utc": "1999-09-17T08:19:58Z",
              "ms": 937556398270.8008
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 08:55 on Thu 16 Sep to 11:22 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: 12:02–12:50 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 2399 s"
        },
        {
          "step": "ruling",
          "text": "Muktābharaṇa Vrata, Mashhad, 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 Mashhad, Muktābharaṇa Vrata 1999 falls on Thursday 16 September. Saptamī runs from 08:55 on Thu 16 Sep to 11:22 on Fri 17 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/radhashtami",
      "festival": "radhashtami",
      "name": "Rādhāṣṭamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-17",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 2399,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-09-17T11:21:59+04:30",
          "utc": "1999-09-17T06:51:59Z",
          "ms": 937551118890.301
        },
        "end": {
          "local": "1999-09-18T13:47:08+04:30",
          "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": "1999-09-17T11:21:59+04:30",
          "utc": "1999-09-17T06:51:59Z",
          "ms": 937551118890.301
        },
        "end": {
          "local": "1999-09-18T13:47:08+04:30",
          "utc": "1999-09-18T09:17:08Z",
          "ms": 937646228346.1394
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-17",
          "window": {
            "start": {
              "local": "1999-09-17T12:01:58+04:30",
              "utc": "1999-09-17T07:31:58Z",
              "ms": 937553518270.8008
            },
            "end": {
              "local": "1999-09-17T12:49:58+04:30",
              "utc": "1999-09-17T08:19:58Z",
              "ms": 937556398270.8008
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-09-18",
          "window": {
            "start": {
              "local": "1999-09-18T12:01:37+04:30",
              "utc": "1999-09-18T07:31:37Z",
              "ms": 937639896903.531
            },
            "end": {
              "local": "1999-09-18T12:49:37+04:30",
              "utc": "1999-09-18T08:19:37Z",
              "ms": 937642776903.531
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 11:22 on Fri 17 Sep to 13:47 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 48 of 48 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "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 2399 s"
        },
        {
          "step": "ruling",
          "text": "Rādhāṣṭamī, Mashhad, 1999: Friday 17 September.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "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": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-18",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Rādhāṣṭamī 1999 falls on Friday 17 September. Aṣṭamī runs from 11:22 on Fri 17 Sep to 13:47 on Sat 18 Sep and covers all of madhyāhna that midday. It also reaches the next midday for 48 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/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-09-21",
      "festival": "ekadashi",
      "name": "Parivartanī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 40601,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-09-20T17:34:12+04:30",
          "utc": "1999-09-20T13:04:12Z",
          "ms": 937832651757.0348
        },
        "end": {
          "local": "1999-09-21T18:33:43+04:30",
          "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": "1999-09-20T17:34:12+04:30",
          "utc": "1999-09-20T13:04:12Z",
          "ms": 937832651757.0348
        },
        "end": {
          "local": "1999-09-21T18:33:43+04:30",
          "utc": "1999-09-21T14:03:43Z",
          "ms": 937922622799.6349
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-09-20",
          "window": {
            "start": {
              "local": "1999-09-20T06:17:31+04:30",
              "utc": "1999-09-20T01:47:31Z",
              "ms": 937792051072.2983
            },
            "end": {
              "local": "1999-09-20T06:17:31+04:30",
              "utc": "1999-09-20T01:47:31Z",
              "ms": 937792051072.2983
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-09-21",
          "window": {
            "start": {
              "local": "1999-09-21T06:18:18+04:30",
              "utc": "1999-09-21T01:48:18Z",
              "ms": 937878498259.8258
            },
            "end": {
              "local": "1999-09-21T06:18:18+04:30",
              "utc": "1999-09-21T01:48:18Z",
              "ms": 937878498259.8258
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 17:34 on Mon 20 Sep to 18:34 on Tue 21 Sep.",
          "fact": "1999-09-20T13:04:12Z → 1999-09-21T14:03:43Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:18 on the 20th and 06:18 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 40601 s"
        },
        {
          "step": "ruling",
          "text": "Parivartanī Ekādaśī, Mashhad, 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 Mashhad, Parivartanī Ekādaśī 1999 falls on Tuesday 21 September. Ekādaśī runs from 17:34 on Mon 20 Sep to 18:34 on Tue 21 Sep and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vamana-jayanti",
      "festival": "vamana-jayanti",
      "name": "Vāmana Jayantī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20710,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-09-21T18:33:43+04:30",
          "utc": "1999-09-21T14:03:43Z",
          "ms": 937922622799.6349
        },
        "end": {
          "local": "1999-09-22T17:49:00+03:30",
          "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": "1999-09-21T18:33:43+04:30",
          "utc": "1999-09-21T14:03:43Z",
          "ms": 937922622799.6349
        },
        "end": {
          "local": "1999-09-22T17:49:00+03:30",
          "utc": "1999-09-22T14:19:00Z",
          "ms": 938009939862.2031
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-09-21",
          "window": {
            "start": {
              "local": "1999-09-21T12:00:33+04:30",
              "utc": "1999-09-21T07:30:33Z",
              "ms": 937899032895.5391
            },
            "end": {
              "local": "1999-09-21T12:48:33+04:30",
              "utc": "1999-09-21T08:18:33Z",
              "ms": 937901912895.5391
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-09-22",
          "window": {
            "start": {
              "local": "1999-09-22T11:00:12+03:30",
              "utc": "1999-09-22T07:30:12Z",
              "ms": 937985411661.3999
            },
            "end": {
              "local": "1999-09-22T11:48:12+03:30",
              "utc": "1999-09-22T08:18:12Z",
              "ms": 937988291661.3999
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 18:34 on Tue 21 Sep to 17:49 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, 11:00–11:48 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 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. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 20710 s"
        },
        {
          "step": "ruling",
          "text": "Vāmana Jayantī, Mashhad, 1999: Wednesday 22 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": "1999-09-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vāmana Jayantī 1999 falls on Wednesday 22 September. Dvādaśī runs from 18:34 on Tue 21 Sep to 17:49 on Wed 22 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-09-22",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 503,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-09-22T17:49:00+03:30",
          "utc": "1999-09-22T14:19:00Z",
          "ms": 938009939862.2031
        },
        "end": {
          "local": "1999-09-23T17:19:25+03:30",
          "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": "1999-09-22T17:49:00+03:30",
          "utc": "1999-09-22T14:19:00Z",
          "ms": 938009939862.2031
        },
        "end": {
          "local": "1999-09-23T17:19:25+03:30",
          "utc": "1999-09-23T13:49:25Z",
          "ms": 938094565134.7363
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-09-22",
          "window": {
            "start": {
              "local": "1999-09-22T17:29:18+03:30",
              "utc": "1999-09-22T13:59:18Z",
              "ms": 938008757779.8928
            },
            "end": {
              "local": "1999-09-22T19:04:02+03:30",
              "utc": "1999-09-22T15:34:02Z",
              "ms": 938014442467.3274
            }
          },
          "covered_min": 75,
          "window_min": 95,
          "qualifies": true
        },
        {
          "local_date": "1999-09-23",
          "window": {
            "start": {
              "local": "1999-09-23T17:27:48+03:30",
              "utc": "1999-09-23T13:57:48Z",
              "ms": 938095068094.7708
            },
            "end": {
              "local": "1999-09-23T19:02:51+03:30",
              "utc": "1999-09-23T15:32:51Z",
              "ms": 938100771075.9052
            }
          },
          "covered_min": 0,
          "window_min": 95,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 17:49 on Wed 22 Sep to 17:19 on Thu 23 Sep.",
          "fact": "1999-09-22T14:19:00Z → 1999-09-23T13:49:25Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:29–19:04 on the 22nd, 17:28–19:03 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 75 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 503 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 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": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 1999 falls on Wednesday 22 September. Trayodaśī runs from 17:49 on Wed 22 Sep to 17:19 on Thu 23 Sep and covers 75 of 95 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ananta-chaturdashi",
      "festival": "ananta-chaturdashi",
      "name": "Ananta Caturdaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30140,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-09-23T17:19:25+03:30",
          "utc": "1999-09-23T13:49:25Z",
          "ms": 938094565134.7363
        },
        "end": {
          "local": "1999-09-24T16:08:08+03:30",
          "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": "1999-09-23T17:19:25+03:30",
          "utc": "1999-09-23T13:49:25Z",
          "ms": 938094565134.7363
        },
        "end": {
          "local": "1999-09-24T16:08:08+03:30",
          "utc": "1999-09-24T12:38:08Z",
          "ms": 938176687579.8534
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "1999-09-23",
          "window": {
            "start": {
              "local": "1999-09-23T05:19:53+03:30",
              "utc": "1999-09-23T01:49:53Z",
              "ms": 938051392935.652
            },
            "end": {
              "local": "1999-09-23T07:45:28+03:30",
              "utc": "1999-09-23T04:15:28Z",
              "ms": 938060127967.4757
            }
          },
          "covered_min": 0,
          "window_min": 146,
          "qualifies": false
        },
        {
          "local_date": "1999-09-24",
          "window": {
            "start": {
              "local": "1999-09-24T05:20:40+03:30",
              "utc": "1999-09-24T01:50:40Z",
              "ms": 938137840453.2783
            },
            "end": {
              "local": "1999-09-24T07:45:48+03:30",
              "utc": "1999-09-24T04:15:48Z",
              "ms": 938146548064.0952
            }
          },
          "covered_min": 145,
          "window_min": 145,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 17:19 on Thu 23 Sep to 16:08 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: 05:20–07:45 on the 23rd, 05:21–07:46 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 146 minutes on the 23rd and 145 of 145 on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one morning qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 30140 s"
        },
        {
          "step": "ruling",
          "text": "Ananta Caturdaśī, Mashhad, 1999: Friday 24 September.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "1999-09-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ananta Caturdaśī 1999 falls on Friday 24 September. Caturdaśī runs from 17:19 on Thu 23 Sep to 16:08 on Fri 24 Sep and covers all of the first three muhūrtas after sunrise that morning.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-09-28",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30063,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-09-28T06:46:29+03:30",
          "utc": "1999-09-28T03:16:29Z",
          "ms": 938488589203.7693
        },
        "end": {
          "local": "1999-09-29T03:59:14+03:30",
          "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": "1999-09-28T06:46:29+03:30",
          "utc": "1999-09-28T03:16:29Z",
          "ms": 938488589203.7693
        },
        "end": {
          "local": "1999-09-29T03:59:14+03:30",
          "utc": "1999-09-29T00:29:14Z",
          "ms": 938564953903.9341
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-09-27",
          "window": {
            "start": {
              "local": "1999-09-27T18:58:19+03:30",
              "utc": "1999-09-27T15:28:19Z",
              "ms": 938446098673.8052
            },
            "end": {
              "local": "1999-09-27T18:58:19+03:30",
              "utc": "1999-09-27T15:28:19Z",
              "ms": 938446098673.8052
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-09-28",
          "window": {
            "start": {
              "local": "1999-09-28T19:38:11+03:30",
              "utc": "1999-09-28T16:08:11Z",
              "ms": 938534890709.9291
            },
            "end": {
              "local": "1999-09-28T19:38:11+03:30",
              "utc": "1999-09-28T16:08:11Z",
              "ms": 938534890709.9291
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:46 on Tue 28 Sep to 03:59 on Wed 29 Sep.",
          "fact": "1999-09-28T03:16:29Z → 1999-09-29T00:29:14Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 18:58 on the 27th and 19:38 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 on the 28th.",
          "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 30063 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 1999: Tuesday 28 September.",
          "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": "1999-09-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Tuesday 28 September. Caturthī runs from 06:46 on Tue 28 Sep to 03:59 on Wed 29 Sep and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/sankashta-chaturthi?on=1999-09-28",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/chandra-shashthi",
      "festival": "chandra-shashthi",
      "name": "Candra Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-09-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5784,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-09-30T01:17:14+03:30",
          "utc": "1999-09-29T21:47:14Z",
          "ms": 938641633778.2814
        },
        "end": {
          "local": "1999-09-30T22:46:40+03:30",
          "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": "1999-09-30T01:17:14+03:30",
          "utc": "1999-09-29T21:47:14Z",
          "ms": 938641633778.2814
        },
        "end": {
          "local": "1999-09-30T22:46:40+03:30",
          "utc": "1999-09-30T19:16:40Z",
          "ms": 938718999618.5751
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-09-29",
          "window": {
            "start": {
              "local": "1999-09-29T20:21:51+03:30",
              "utc": "1999-09-29T16:51:51Z",
              "ms": 938623911135.397
            },
            "end": {
              "local": "1999-09-29T20:21:51+03:30",
              "utc": "1999-09-29T16:51:51Z",
              "ms": 938623911135.397
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-09-30",
          "window": {
            "start": {
              "local": "1999-09-30T21:10:16+03:30",
              "utc": "1999-09-30T17:40:16Z",
              "ms": 938713215808.9434
            },
            "end": {
              "local": "1999-09-30T21:10:16+03:30",
              "utc": "1999-09-30T17:40:16Z",
              "ms": 938713215808.9434
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 01:17 on Thu 30 Sep to 22:47 on Thu 30 Sep.",
          "fact": "1999-09-29T21:47:14Z → 1999-09-30T19:16:40Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:22 on the 29th and 21:10 on the 30th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 29th and is 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 5784 s"
        },
        {
          "step": "ruling",
          "text": "Candra Ṣaṣṭhī, Mashhad, 1999: Thursday 30 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": "1999-09-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-09-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Candra Ṣaṣṭhī 1999 falls on Thursday 30 September. Ṣaṣṭhī runs from 01:17 on Thu 30 Sep to 22:47 on Thu 30 Sep and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/mahalakshmi-vrata-samapana",
      "festival": "mahalakshmi-vrata-samapana",
      "name": "Mahālakṣmī Vrata Samāpana",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5495,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-10-01T20:32:10+03:30",
          "utc": "1999-10-01T17:02:10Z",
          "ms": 938797330243.3048
        },
        "end": {
          "local": "1999-10-02T18:36:48+03:30",
          "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": "1999-10-01T20:32:10+03:30",
          "utc": "1999-10-01T17:02:10Z",
          "ms": 938797330243.3048
        },
        "end": {
          "local": "1999-10-02T18:36:48+03:30",
          "utc": "1999-10-02T15:06:48Z",
          "ms": 938876807912.8059
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-10-01",
          "window": {
            "start": {
              "local": "1999-10-01T22:03:45+03:30",
              "utc": "1999-10-01T18:33:45Z",
              "ms": 938802825419.8674
            },
            "end": {
              "local": "1999-10-01T22:03:45+03:30",
              "utc": "1999-10-01T18:33:45Z",
              "ms": 938802825419.8674
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-10-02",
          "window": {
            "start": {
              "local": "1999-10-02T23:01:49+03:30",
              "utc": "1999-10-02T19:31:49Z",
              "ms": 938892709156.2579
            },
            "end": {
              "local": "1999-10-02T23:01:49+03:30",
              "utc": "1999-10-02T19:31:49Z",
              "ms": 938892709156.2579
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 20:32 on Fri 1 Oct to 18:37 on Sat 2 Oct.",
          "fact": "1999-10-01T17:02:10Z → 1999-10-02T15:06:48Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:04 on the 1st and 23:02 on the 2nd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be current at moonrise. It is on the 1st and is not on the 2nd.",
          "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 5495 s"
        },
        {
          "step": "ruling",
          "text": "Mahālakṣmī Vrata Samāpana, Mashhad, 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 Mashhad, Mahālakṣmī Vrata Samāpana 1999 falls on Friday 1 October. Aṣṭamī runs from 20:32 on Fri 1 Oct to 18:37 on Sat 2 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/jitashtami",
      "festival": "jitashtami",
      "name": "Jitāṣṭamī",
      "everyday": "Jitiya",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 929,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-10-01T20:32:10+03:30",
          "utc": "1999-10-01T17:02:10Z",
          "ms": 938797330243.3048
        },
        "end": {
          "local": "1999-10-02T18:36:48+03:30",
          "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": "1999-10-01T20:32:10+03:30",
          "utc": "1999-10-01T17:02:10Z",
          "ms": 938797330243.3048
        },
        "end": {
          "local": "1999-10-02T18:36:48+03:30",
          "utc": "1999-10-02T15:06:48Z",
          "ms": 938876807912.8059
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-10-01",
          "window": {
            "start": {
              "local": "1999-10-01T17:15:57+03:30",
              "utc": "1999-10-01T13:45:57Z",
              "ms": 938785556814.2772
            },
            "end": {
              "local": "1999-10-01T18:53:26+03:30",
              "utc": "1999-10-01T15:23:26Z",
              "ms": 938791406190.9297
            }
          },
          "covered_min": 0,
          "window_min": 97,
          "qualifies": false
        },
        {
          "local_date": "1999-10-02",
          "window": {
            "start": {
              "local": "1999-10-02T17:14:29+03:30",
              "utc": "1999-10-02T13:44:29Z",
              "ms": 938871869154.8844
            },
            "end": {
              "local": "1999-10-02T18:52:17+03:30",
              "utc": "1999-10-02T15:22:17Z",
              "ms": 938877736805.2386
            }
          },
          "covered_min": 82,
          "window_min": 98,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 20:32 on Fri 1 Oct to 18:37 on Sat 2 Oct.",
          "fact": "1999-10-01T17:02:10Z → 1999-10-02T15:06:48Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:16–18:53 on the 1st, 17:14–18:52 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 0 of 97 minutes on the 1st and 82 of 98 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 929 s"
        },
        {
          "step": "ruling",
          "text": "Jitāṣṭamī, Mashhad, 1999: Saturday 2 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": "1999-10-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Jitāṣṭamī (Jitiya) 1999 falls on Saturday 2 October. Aṣṭamī runs from 20:32 on Fri 1 Oct to 18:37 on Sat 2 Oct and covers 82 of 98 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-10-05",
      "festival": "ekadashi",
      "name": "Indirā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33993,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-10-04T15:48:36+03:30",
          "utc": "1999-10-04T12:18:36Z",
          "ms": 939039515682.7743
        },
        "end": {
          "local": "1999-10-05T14:56:09+03:30",
          "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": "1999-10-04T15:48:36+03:30",
          "utc": "1999-10-04T12:18:36Z",
          "ms": 939039515682.7743
        },
        "end": {
          "local": "1999-10-05T14:56:09+03:30",
          "utc": "1999-10-05T11:26:09Z",
          "ms": 939122769405.0093
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-10-04",
          "window": {
            "start": {
              "local": "1999-10-04T05:28:46+03:30",
              "utc": "1999-10-04T01:58:46Z",
              "ms": 939002326201.6929
            },
            "end": {
              "local": "1999-10-04T05:28:46+03:30",
              "utc": "1999-10-04T01:58:46Z",
              "ms": 939002326201.6929
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-10-05",
          "window": {
            "start": {
              "local": "1999-10-05T05:29:36+03:30",
              "utc": "1999-10-05T01:59:36Z",
              "ms": 939088776154.6791
            },
            "end": {
              "local": "1999-10-05T05:29:36+03:30",
              "utc": "1999-10-05T01:59:36Z",
              "ms": 939088776154.6791
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 15:49 on Mon 4 Oct to 14:56 on Tue 5 Oct.",
          "fact": "1999-10-04T12:18:36Z → 1999-10-05T11:26:09Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:29 on the 4th and 05:30 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 33993 s"
        },
        {
          "step": "ruling",
          "text": "Indirā Ekādaśī, Mashhad, 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 Mashhad, Indirā Ekādaśī 1999 falls on Tuesday 5 October. Ekādaśī runs from 15:49 on Mon 4 Oct to 14:56 on Tue 5 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-10-06",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9838,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-10-06T14:24:45+03:30",
          "utc": "1999-10-06T10:54:45Z",
          "ms": 939207284762.6168
        },
        "end": {
          "local": "1999-10-07T14:14:48+03:30",
          "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": "1999-10-06T14:24:45+03:30",
          "utc": "1999-10-06T10:54:45Z",
          "ms": 939207284762.6168
        },
        "end": {
          "local": "1999-10-07T14:14:48+03:30",
          "utc": "1999-10-07T10:44:48Z",
          "ms": 939293088011.4509
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-10-06",
          "window": {
            "start": {
              "local": "1999-10-06T17:08:43+03:30",
              "utc": "1999-10-06T13:38:43Z",
              "ms": 939217122604.9922
            },
            "end": {
              "local": "1999-10-06T18:47:43+03:30",
              "utc": "1999-10-06T15:17:43Z",
              "ms": 939223063182.8335
            }
          },
          "covered_min": 99,
          "window_min": 99,
          "qualifies": true
        },
        {
          "local_date": "1999-10-07",
          "window": {
            "start": {
              "local": "1999-10-07T17:07:17+03:30",
              "utc": "1999-10-07T13:37:17Z",
              "ms": 939303437130.6144
            },
            "end": {
              "local": "1999-10-07T18:46:36+03:30",
              "utc": "1999-10-07T15:16:36Z",
              "ms": 939309395884.0054
            }
          },
          "covered_min": 0,
          "window_min": 99,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 14:25 on Wed 6 Oct to 14:15 on Thu 7 Oct.",
          "fact": "1999-10-06T10:54:45Z → 1999-10-07T10:44:48Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:09–18:48 on the 6th, 17:07–18:47 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 99 of 99 minutes on the 6th and 0 of 99 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 9838 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 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 Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Wednesday 6 October. Trayodaśī runs from 14:25 on Wed 6 Oct to 14:15 on Thu 7 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shivaratri?on=1999-10-07",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30478,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-10-07T14:14:48+03:30",
          "utc": "1999-10-07T10:44:48Z",
          "ms": 939293088011.4509
        },
        "end": {
          "local": "1999-10-08T14:27:27+03:30",
          "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": "1999-10-07T14:14:48+03:30",
          "utc": "1999-10-07T10:44:48Z",
          "ms": 939293088011.4509
        },
        "end": {
          "local": "1999-10-08T14:27:27+03:30",
          "utc": "1999-10-08T10:57:27Z",
          "ms": 939380247368.4288
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-10-07",
          "window": {
            "start": {
              "local": "1999-10-07T22:55:42+03:30",
              "utc": "1999-10-07T19:25:42Z",
              "ms": 939324342455.8303
            },
            "end": {
              "local": "1999-10-07T23:43:42+03:30",
              "utc": "1999-10-07T20:13:42Z",
              "ms": 939327222455.8303
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-10-08",
          "window": {
            "start": {
              "local": "1999-10-08T22:55:26+03:30",
              "utc": "1999-10-08T19:25:26Z",
              "ms": 939410725553.2178
            },
            "end": {
              "local": "1999-10-08T23:43:26+03:30",
              "utc": "1999-10-08T20:13:26Z",
              "ms": 939413605553.2178
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 14:15 on Thu 7 Oct to 14:27 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: 22:56–23:44 on the 7th, 22:55–23:43 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 30478 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 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 Mashhad, Śivarātri 1999 falls on Thursday 7 October. Caturdaśī runs from 14:15 on Thu 7 Oct to 14:27 on Fri 8 Oct and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/mahalaya-amavasya",
      "festival": "mahalaya-amavasya",
      "name": "Mahālaya Amāvāsyā",
      "everyday": "Sarvapitṛ Amāvāsyā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-09",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 1095,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "1999-10-08T14:27:27+03:30",
          "utc": "1999-10-08T10:57:27Z",
          "ms": 939380247368.4288
        },
        "end": {
          "local": "1999-10-09T15:04:25+03:30",
          "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": "1999-10-08T14:27:27+03:30",
          "utc": "1999-10-08T10:57:27Z",
          "ms": 939380247368.4288
        },
        "end": {
          "local": "1999-10-09T15:04:25+03:30",
          "utc": "1999-10-09T11:34:25Z",
          "ms": 939468864513.4558
        }
      },
      "kaala": "aparahna",
      "days": [
        {
          "local_date": "1999-10-08",
          "window": {
            "start": {
              "local": "1999-10-08T12:28:22+03:30",
              "utc": "1999-10-08T08:58:22Z",
              "ms": 939373102418.479
            },
            "end": {
              "local": "1999-10-08T14:47:07+03:30",
              "utc": "1999-10-08T11:17:07Z",
              "ms": 939381427297.6233
            }
          },
          "covered_min": 20,
          "window_min": 139,
          "qualifies": true
        },
        {
          "local_date": "1999-10-09",
          "window": {
            "start": {
              "local": "1999-10-09T12:27:52+03:30",
              "utc": "1999-10-09T08:57:52Z",
              "ms": 939459472234.4634
            },
            "end": {
              "local": "1999-10-09T14:46:10+03:30",
              "utc": "1999-10-09T11:16:10Z",
              "ms": 939467770002.7284
            }
          },
          "covered_min": 138,
          "window_min": 138,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 14:27 on Fri 8 Oct to 15:04 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: 12:28–14:47 on the 8th, 12:28–14:46 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 20 of 139 minutes on the 8th and 138 of 138 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Both afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 1095 s"
        },
        {
          "step": "ruling",
          "text": "Mahālaya Amāvāsyā, Mashhad, 1999: Saturday 9 October.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "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": "1999-10-09",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-09",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Mahālaya Amāvāsyā 1999 falls on Saturday 9 October. Amāvasyā runs from 14:27 on Fri 8 Oct to 15:04 on Sat 9 Oct and covers all of aparāhṇa that afternoon. It also reaches the previous afternoon for 20 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/mashhad/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": "/mashhad/festivals/1999/navaratra-arambha",
      "festival": "navaratra-arambha",
      "name": "Navarātrārambha",
      "everyday": "Navratri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12101,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-10-09T15:04:25+03:30",
          "utc": "1999-10-09T11:34:25Z",
          "ms": 939468864513.4558
        },
        "end": {
          "local": "1999-10-10T16:07:24+03:30",
          "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": "1999-10-09T15:04:25+03:30",
          "utc": "1999-10-09T11:34:25Z",
          "ms": 939468864513.4558
        },
        "end": {
          "local": "1999-10-10T16:07:24+03:30",
          "utc": "1999-10-10T12:37:24Z",
          "ms": 939559043734.6267
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-10-09",
          "window": {
            "start": {
              "local": "1999-10-09T10:54:43+03:30",
              "utc": "1999-10-09T07:24:43Z",
              "ms": 939453883350.3308
            },
            "end": {
              "local": "1999-10-09T11:42:43+03:30",
              "utc": "1999-10-09T08:12:43Z",
              "ms": 939456763350.3308
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-10-10",
          "window": {
            "start": {
              "local": "1999-10-10T10:54:27+03:30",
              "utc": "1999-10-10T07:24:27Z",
              "ms": 939540267164.8773
            },
            "end": {
              "local": "1999-10-10T11:42:27+03:30",
              "utc": "1999-10-10T08:12:27Z",
              "ms": 939543147164.8773
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 15:04 on Sat 9 Oct to 16:07 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: 10:55–11:43 on the 9th, 10:54–11:42 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 12101 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha, Mashhad, 1999: Sunday 10 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": "1999-10-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Navarātrārambha (Navratri) 1999 falls on Sunday 10 October. Pratipadā runs from 15:04 on Sat 9 Oct to 16:07 on Sun 10 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-10-13",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28284,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-10-12T19:33:20+03:30",
          "utc": "1999-10-12T16:03:20Z",
          "ms": 939744200281.941
        },
        "end": {
          "local": "1999-10-13T21:51:28+03:30",
          "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": "1999-10-12T19:33:20+03:30",
          "utc": "1999-10-12T16:03:20Z",
          "ms": 939744200281.941
        },
        "end": {
          "local": "1999-10-13T21:51:28+03:30",
          "utc": "1999-10-13T18:21:28Z",
          "ms": 939838888335.9285
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-10-12",
          "window": {
            "start": {
              "local": "1999-10-12T10:53:56+03:30",
              "utc": "1999-10-12T07:23:56Z",
              "ms": 939713036186.9167
            },
            "end": {
              "local": "1999-10-12T11:41:56+03:30",
              "utc": "1999-10-12T08:11:56Z",
              "ms": 939715916186.9167
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-10-13",
          "window": {
            "start": {
              "local": "1999-10-13T10:53:41+03:30",
              "utc": "1999-10-13T07:23:41Z",
              "ms": 939799421426.4152
            },
            "end": {
              "local": "1999-10-13T11:41:41+03:30",
              "utc": "1999-10-13T08:11:41Z",
              "ms": 939802301426.4152
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 19:33 on Tue 12 Oct to 21:51 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: 10:54–11:42 on the 12th, 10:54–11:42 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 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 28284 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 1999: Wednesday 13 October.",
          "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": "1999-10-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 1999 falls on Wednesday 13 October. Caturthī runs from 19:33 on Tue 12 Oct to 21:51 on Wed 13 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/durga-saptami",
      "festival": "durga-saptami",
      "name": "Durgā Saptamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 862,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-10-16T03:00:13+03:30",
          "utc": "1999-10-15T23:30:13Z",
          "ms": 940030212658.481
        },
        "end": {
          "local": "1999-10-17T05:25:38+03:30",
          "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": "1999-10-16T03:00:13+03:30",
          "utc": "1999-10-15T23:30:13Z",
          "ms": 940030212658.481
        },
        "end": {
          "local": "1999-10-17T05:25:38+03:30",
          "utc": "1999-10-17T01:55:38Z",
          "ms": 940125337643.5698
        }
      },
      "kaala": "udaya-1",
      "days": [
        {
          "local_date": "1999-10-16",
          "window": {
            "start": {
              "local": "1999-10-16T05:39:06+03:30",
              "utc": "1999-10-16T02:09:06Z",
              "ms": 940039745843.0085
            },
            "end": {
              "local": "1999-10-16T06:24:09+03:30",
              "utc": "1999-10-16T02:54:09Z",
              "ms": 940042449097.7509
            }
          },
          "covered_min": 45,
          "window_min": 45,
          "qualifies": true
        },
        {
          "local_date": "1999-10-17",
          "window": {
            "start": {
              "local": "1999-10-17T05:40:00+03:30",
              "utc": "1999-10-17T02:10:00Z",
              "ms": 940126199560.073
            },
            "end": {
              "local": "1999-10-17T06:24:54+03:30",
              "utc": "1999-10-17T02:54:54Z",
              "ms": 940128893968.1107
            }
          },
          "covered_min": 0,
          "window_min": 45,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 03:00 on Sat 16 Oct to 05:26 on Sun 17 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: 05:39–06:24 on the 16th, 05:40–06:25 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 45 of 45 minutes on the 16th and 0 of 45 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 862 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Saptamī, Mashhad, 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 Mashhad, Durgā Saptamī 1999 falls on Saturday 16 October. Saptamī runs from 03:00 on Sat 16 Oct to 05:26 on Sun 17 Oct and covers all of the first muhūrta after sunrise that morning.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/mahashtami",
      "festival": "mahashtami",
      "name": "Mahāṣṭamī",
      "everyday": "Durga Ashtami",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12406,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-10-17T05:25:38+03:30",
          "utc": "1999-10-17T01:55:38Z",
          "ms": 940125337643.5698
        },
        "end": {
          "local": "1999-10-18T07:25:49+03:30",
          "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": "1999-10-17T05:25:38+03:30",
          "utc": "1999-10-17T01:55:38Z",
          "ms": 940125337643.5698
        },
        "end": {
          "local": "1999-10-18T07:25:49+03:30",
          "utc": "1999-10-18T03:55:49Z",
          "ms": 940218949433.5112
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-10-17",
          "window": {
            "start": {
              "local": "1999-10-17T10:52:48+03:30",
              "utc": "1999-10-17T07:22:48Z",
              "ms": 940144967620.3562
            },
            "end": {
              "local": "1999-10-17T11:40:48+03:30",
              "utc": "1999-10-17T08:10:48Z",
              "ms": 940147847620.3562
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-10-18",
          "window": {
            "start": {
              "local": "1999-10-18T10:52:36+03:30",
              "utc": "1999-10-18T07:22:36Z",
              "ms": 940231355560.3904
            },
            "end": {
              "local": "1999-10-18T11:40:36+03:30",
              "utc": "1999-10-18T08:10:36Z",
              "ms": 940234235560.3904
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 05:26 on Sun 17 Oct to 07:26 on Mon 18 Oct.",
          "fact": "1999-10-17T01:55:38Z → 1999-10-18T03:55:49Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:53–11:41 on the 17th, 10:53–11:41 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 12406 s"
        },
        {
          "step": "ruling",
          "text": "Mahāṣṭamī, Mashhad, 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 Mashhad, Mahāṣṭamī (Durga Ashtami) 1999 falls on Sunday 17 October. Aṣṭamī runs from 05:26 on Sun 17 Oct to 07:26 on Mon 18 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/mahanavami",
      "festival": "mahanavami",
      "name": "Mahānavamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7469,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1999-10-18T07:25:49+03:30",
          "utc": "1999-10-18T03:55:49Z",
          "ms": 940218949433.5112
        },
        "end": {
          "local": "1999-10-19T08:47:55+03:30",
          "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": "1999-10-18T07:25:49+03:30",
          "utc": "1999-10-18T03:55:49Z",
          "ms": 940218949433.5112
        },
        "end": {
          "local": "1999-10-19T08:47:55+03:30",
          "utc": "1999-10-19T05:17:55Z",
          "ms": 940310274795.9543
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-10-18",
          "window": {
            "start": {
              "local": "1999-10-18T10:52:36+03:30",
              "utc": "1999-10-18T07:22:36Z",
              "ms": 940231355560.3904
            },
            "end": {
              "local": "1999-10-18T11:40:36+03:30",
              "utc": "1999-10-18T08:10:36Z",
              "ms": 940234235560.3904
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-10-19",
          "window": {
            "start": {
              "local": "1999-10-19T10:52:24+03:30",
              "utc": "1999-10-19T07:22:24Z",
              "ms": 940317744090.5468
            },
            "end": {
              "local": "1999-10-19T11:40:24+03:30",
              "utc": "1999-10-19T08:10:24Z",
              "ms": 940320624090.5468
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 07:26 on Mon 18 Oct to 08:48 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: 10:53–11:41 on the 18th, 10:52–11:40 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 7469 s"
        },
        {
          "step": "ruling",
          "text": "Mahānavamī, Mashhad, 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 Mashhad, Mahānavamī 1999 falls on Monday 18 October. Navamī runs from 07:26 on Mon 18 Oct to 08:48 on Tue 19 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vijaya-dashami",
      "festival": "vijaya-dashami",
      "name": "Vijayā Daśamī",
      "everyday": "Dussehra",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2831,
      "anga": {
        "type": "tithi",
        "index": 9,
        "key": "dashami",
        "name": "Daśamī",
        "start": {
          "local": "1999-10-19T08:47:55+03:30",
          "utc": "1999-10-19T05:17:55Z",
          "ms": 940310274795.9543
        },
        "end": {
          "local": "1999-10-20T09:22:46+03:30",
          "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": "1999-10-19T08:47:55+03:30",
          "utc": "1999-10-19T05:17:55Z",
          "ms": 940310274795.9543
        },
        "end": {
          "local": "1999-10-19T16:03:49+03:30",
          "utc": "1999-10-19T12:33:49Z",
          "ms": 940336428863.3788
        },
        "nakshatra": {
          "type": "nakshatra",
          "index": 21,
          "key": "shravana",
          "name": "Śravaṇa",
          "start": {
            "local": "1999-10-18T14:20:25+03:30",
            "utc": "1999-10-18T10:50:25Z",
            "ms": 940243825395.3796
          },
          "end": {
            "local": "1999-10-19T16:03:49+03:30",
            "utc": "1999-10-19T12:33:49Z",
            "ms": 940336428863.3788
          }
        }
      },
      "kaala": "daytime",
      "days": [
        {
          "local_date": "1999-10-19",
          "window": {
            "start": {
              "local": "1999-10-19T05:41:48+03:30",
              "utc": "1999-10-19T02:11:48Z",
              "ms": 940299107990.6107
            },
            "end": {
              "local": "1999-10-19T16:51:00+03:30",
              "utc": "1999-10-19T13:21:00Z",
              "ms": 940339260190.4828
            }
          },
          "covered_min": 436,
          "window_min": 669,
          "qualifies": true
        },
        {
          "local_date": "1999-10-20",
          "window": {
            "start": {
              "local": "1999-10-20T05:42:43+03:30",
              "utc": "1999-10-20T02:12:43Z",
              "ms": 940385562707.0961
            },
            "end": {
              "local": "1999-10-20T16:49:44+03:30",
              "utc": "1999-10-20T13:19:44Z",
              "ms": 940425583748.7803
            }
          },
          "covered_min": 0,
          "window_min": 667,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Daśamī runs from 08:48 on Tue 19 Oct to 09:23 on Wed 20 Oct, and Śravaṇa from 14:20 on Mon 18 Oct to 16:04 on Tue 19 Oct. They are together from 08:48 on Tue 19 Oct to 16:04 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: 05:42–16:51 on the 19th, 05:43–16:50 on the 20th.",
          "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 436 of 669 minutes on the 19th and 0 of 667 on the 20th.",
          "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 2831 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Daśamī, Mashhad, 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 Mashhad, Vijayā Daśamī (Dussehra) 1999 falls on Tuesday 19 October. Daśamī runs from 08:48 on Tue 19 Oct to 09:23 on Wed 20 Oct and is with Śravaṇa in the day time that day, for 436 minutes.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-10-21",
      "festival": "ekadashi",
      "name": "Pāśāṅkuśā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12151,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-10-20T09:22:46+03:30",
          "utc": "1999-10-20T05:52:46Z",
          "ms": 940398766478.6859
        },
        "end": {
          "local": "1999-10-21T09:06:09+03:30",
          "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": "1999-10-20T09:22:46+03:30",
          "utc": "1999-10-20T05:52:46Z",
          "ms": 940398766478.6859
        },
        "end": {
          "local": "1999-10-21T09:06:09+03:30",
          "utc": "1999-10-21T05:36:09Z",
          "ms": 940484168784.1503
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-10-20",
          "window": {
            "start": {
              "local": "1999-10-20T05:42:43+03:30",
              "utc": "1999-10-20T02:12:43Z",
              "ms": 940385562707.0961
            },
            "end": {
              "local": "1999-10-20T05:42:43+03:30",
              "utc": "1999-10-20T02:12:43Z",
              "ms": 940385562707.0961
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-10-21",
          "window": {
            "start": {
              "local": "1999-10-21T05:43:38+03:30",
              "utc": "1999-10-21T02:13:38Z",
              "ms": 940472017759.7306
            },
            "end": {
              "local": "1999-10-21T05:43:38+03:30",
              "utc": "1999-10-21T02:13:38Z",
              "ms": 940472017759.7306
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 09:23 on Wed 20 Oct to 09:06 on Thu 21 Oct.",
          "fact": "1999-10-20T05:52:46Z → 1999-10-21T05:36:09Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:43 on the 20th and 05:44 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 12151 s"
        },
        {
          "step": "ruling",
          "text": "Pāśāṅkuśā Ekādaśī, Mashhad, 1999: Thursday 21 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": "1999-10-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Pāśāṅkuśā Ekādaśī 1999 falls on Thursday 21 October. Ekādaśī runs from 09:23 on Wed 20 Oct to 09:06 on Thu 21 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/ekadashi?on=1999-10-21",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/pradosha-vrata?on=1999-10-22",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31715,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-10-22T07:58:39+03:30",
          "utc": "1999-10-22T04:28:39Z",
          "ms": 940566518906.453
        },
        "end": {
          "local": "1999-10-23T06:05:02+03:30",
          "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": "1999-10-22T07:58:39+03:30",
          "utc": "1999-10-22T04:28:39Z",
          "ms": 940566518906.453
        },
        "end": {
          "local": "1999-10-23T06:05:02+03:30",
          "utc": "1999-10-23T02:35:02Z",
          "ms": 940646101542.4484
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-10-22",
          "window": {
            "start": {
              "local": "1999-10-22T16:47:14+03:30",
              "utc": "1999-10-22T13:17:14Z",
              "ms": 940598233639.1355
            },
            "end": {
              "local": "1999-10-22T18:31:00+03:30",
              "utc": "1999-10-22T15:01:00Z",
              "ms": 940604459671.3861
            }
          },
          "covered_min": 104,
          "window_min": 104,
          "qualifies": true
        },
        {
          "local_date": "1999-10-23",
          "window": {
            "start": {
              "local": "1999-10-23T16:46:00+03:30",
              "utc": "1999-10-23T13:16:00Z",
              "ms": 940684560039.8663
            },
            "end": {
              "local": "1999-10-23T18:30:03+03:30",
              "utc": "1999-10-23T15:00:03Z",
              "ms": 940690803361.8336
            }
          },
          "covered_min": 0,
          "window_min": 104,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 07:59 on Fri 22 Oct to 06:05 on Sat 23 Oct.",
          "fact": "1999-10-22T04:28:39Z → 1999-10-23T02:35:02Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:47–18:31 on the 22nd, 16:46–18:30 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 104 of 104 minutes on the 22nd and 0 of 104 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 31715 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 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 Mashhad, Śukla Pradoṣa Vrata 1999 falls on Friday 22 October. Trayodaśī runs from 07:59 on Fri 22 Oct to 06:05 on Sat 23 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/karaka-chaturthi",
      "festival": "karaka-chaturthi",
      "name": "Karaka Caturthī",
      "everyday": "Karwa Chauth",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16632,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-10-27T14:25:16+03:30",
          "utc": "1999-10-27T10:55:16Z",
          "ms": 941021715964.3398
        },
        "end": {
          "local": "1999-10-28T11:15:35+03:30",
          "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": "1999-10-27T14:25:16+03:30",
          "utc": "1999-10-27T10:55:16Z",
          "ms": 941021715964.3398
        },
        "end": {
          "local": "1999-10-28T11:15:35+03:30",
          "utc": "1999-10-28T07:45:35Z",
          "ms": 941096734535.0026
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-10-27",
          "window": {
            "start": {
              "local": "1999-10-27T19:02:28+03:30",
              "utc": "1999-10-27T15:32:28Z",
              "ms": 941038347540.298
            },
            "end": {
              "local": "1999-10-27T19:02:28+03:30",
              "utc": "1999-10-27T15:32:28Z",
              "ms": 941038347540.298
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-10-28",
          "window": {
            "start": {
              "local": "1999-10-28T19:55:52+03:30",
              "utc": "1999-10-28T16:25:52Z",
              "ms": 941127951799.6725
            },
            "end": {
              "local": "1999-10-28T19:55:52+03:30",
              "utc": "1999-10-28T16:25:52Z",
              "ms": 941127951799.6725
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 14:25 on Wed 27 Oct to 11:16 on Thu 28 Oct.",
          "fact": "1999-10-27T10:55:16Z → 1999-10-28T07:45:35Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:02 on the 27th and 19:56 on the 28th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 16632 s"
        },
        {
          "step": "ruling",
          "text": "Karaka Caturthī, Mashhad, 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 Mashhad, Karaka Caturthī (Karwa Chauth) 1999 falls on Wednesday 27 October. Caturthī runs from 14:25 on Wed 27 Oct to 11:16 on Thu 28 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-10-27",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16632,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-10-27T14:25:16+03:30",
          "utc": "1999-10-27T10:55:16Z",
          "ms": 941021715964.3398
        },
        "end": {
          "local": "1999-10-28T11:15:35+03:30",
          "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": "1999-10-27T14:25:16+03:30",
          "utc": "1999-10-27T10:55:16Z",
          "ms": 941021715964.3398
        },
        "end": {
          "local": "1999-10-28T11:15:35+03:30",
          "utc": "1999-10-28T07:45:35Z",
          "ms": 941096734535.0026
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-10-27",
          "window": {
            "start": {
              "local": "1999-10-27T19:02:28+03:30",
              "utc": "1999-10-27T15:32:28Z",
              "ms": 941038347540.298
            },
            "end": {
              "local": "1999-10-27T19:02:28+03:30",
              "utc": "1999-10-27T15:32:28Z",
              "ms": 941038347540.298
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-10-28",
          "window": {
            "start": {
              "local": "1999-10-28T19:55:52+03:30",
              "utc": "1999-10-28T16:25:52Z",
              "ms": 941127951799.6725
            },
            "end": {
              "local": "1999-10-28T19:55:52+03:30",
              "utc": "1999-10-28T16:25:52Z",
              "ms": 941127951799.6725
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 14:25 on Wed 27 Oct to 11:16 on Thu 28 Oct.",
          "fact": "1999-10-27T10:55:16Z → 1999-10-28T07:45:35Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:02 on the 27th and 19:56 on the 28th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 16632 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 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 Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Wednesday 27 October. Caturthī runs from 14:25 on Wed 27 Oct to 11:16 on Thu 28 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ahoyi-ashtami",
      "festival": "ahoyi-ashtami",
      "name": "Ahoyī Aṣṭamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-10-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14424,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-10-31T04:15:57+03:30",
          "utc": "1999-10-31T00:45:57Z",
          "ms": 941330756631.3022
        },
        "end": {
          "local": "1999-11-01T02:59:38+03:30",
          "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": "1999-10-31T04:15:57+03:30",
          "utc": "1999-10-31T00:45:57Z",
          "ms": 941330756631.3022
        },
        "end": {
          "local": "1999-11-01T02:59:38+03:30",
          "utc": "1999-10-31T23:29:38Z",
          "ms": 941412578025.0114
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-10-30",
          "window": {
            "start": {
              "local": "1999-10-30T21:55:58+03:30",
              "utc": "1999-10-30T18:25:58Z",
              "ms": 941307957884.8002
            },
            "end": {
              "local": "1999-10-30T21:55:58+03:30",
              "utc": "1999-10-30T18:25:58Z",
              "ms": 941307957884.8002
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-10-31",
          "window": {
            "start": {
              "local": "1999-10-31T22:59:14+03:30",
              "utc": "1999-10-31T19:29:14Z",
              "ms": 941398154474.7626
            },
            "end": {
              "local": "1999-10-31T22:59:14+03:30",
              "utc": "1999-10-31T19:29:14Z",
              "ms": 941398154474.7626
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 04:16 on Sun 31 Oct to 03:00 on Mon 1 Nov.",
          "fact": "1999-10-31T00:45:57Z → 1999-10-31T23:29:38Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:56 on the 30th and 22:59 on the 31st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 14424 s"
        },
        {
          "step": "ruling",
          "text": "Ahoyī Aṣṭamī, Mashhad, 1999: Sunday 31 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": "1999-10-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-10-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ahoyī Aṣṭamī 1999 falls on Sunday 31 October. Aṣṭamī runs from 04:16 on Sun 31 Oct to 03:00 on Mon 1 Nov and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-11-03",
      "festival": "ekadashi",
      "name": "Ramā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12967,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-11-03T02:04:29+03:30",
          "utc": "1999-11-02T22:34:29Z",
          "ms": 941582069113.5674
        },
        "end": {
          "local": "1999-11-04T02:20:57+03:30",
          "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": "1999-11-03T02:04:29+03:30",
          "utc": "1999-11-02T22:34:29Z",
          "ms": 941582069113.5674
        },
        "end": {
          "local": "1999-11-04T02:20:57+03:30",
          "utc": "1999-11-03T22:50:57Z",
          "ms": 941669457030.5865
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-11-03",
          "window": {
            "start": {
              "local": "1999-11-03T05:56:05+03:30",
              "utc": "1999-11-03T02:26:05Z",
              "ms": 941595964570.1592
            },
            "end": {
              "local": "1999-11-03T05:56:05+03:30",
              "utc": "1999-11-03T02:26:05Z",
              "ms": 941595964570.1592
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-11-04",
          "window": {
            "start": {
              "local": "1999-11-04T05:57:04+03:30",
              "utc": "1999-11-04T02:27:04Z",
              "ms": 941682424271.6515
            },
            "end": {
              "local": "1999-11-04T05:57:04+03:30",
              "utc": "1999-11-04T02:27:04Z",
              "ms": 941682424271.6515
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 02:04 on Wed 3 Nov to 02:21 on Thu 4 Nov.",
          "fact": "1999-11-02T22:34:29Z → 1999-11-03T22:50:57Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:56 on the 3rd and 05:57 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 12967 s"
        },
        {
          "step": "ruling",
          "text": "Ramā Ekādaśī, Mashhad, 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 Mashhad, Ramā Ekādaśī 1999 falls on Wednesday 3 November. Ekādaśī runs from 02:04 on Wed 3 Nov to 02:21 on Thu 4 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/govatsa-dvadashi",
      "festival": "govatsa-dvadashi",
      "name": "Govatsa Dvādaśī",
      "everyday": "Vasu Baras",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28805,
      "anga": {
        "type": "tithi",
        "index": 26,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-11-04T02:20:57+03:30",
          "utc": "1999-11-03T22:50:57Z",
          "ms": 941669457030.5865
        },
        "end": {
          "local": "1999-11-05T03:03:00+03:30",
          "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": "1999-11-04T02:20:57+03:30",
          "utc": "1999-11-03T22:50:57Z",
          "ms": 941669457030.5865
        },
        "end": {
          "local": "1999-11-05T03:03:00+03:30",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-03",
          "window": {
            "start": {
              "local": "1999-11-03T16:33:45+03:30",
              "utc": "1999-11-03T13:03:45Z",
              "ms": 941634225290.4036
            },
            "end": {
              "local": "1999-11-03T18:20:52+03:30",
              "utc": "1999-11-03T14:50:52Z",
              "ms": 941640651821.2366
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        },
        {
          "local_date": "1999-11-04",
          "window": {
            "start": {
              "local": "1999-11-04T16:32:46+03:30",
              "utc": "1999-11-04T13:02:46Z",
              "ms": 941720566175.6194
            },
            "end": {
              "local": "1999-11-04T18:20:09+03:30",
              "utc": "1999-11-04T14:50:09Z",
              "ms": 941727008583.0945
            }
          },
          "covered_min": 107,
          "window_min": 107,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 02:21 on Thu 4 Nov to 03:03 on Fri 5 Nov.",
          "fact": "1999-11-03T22:50:57Z → 1999-11-04T23:33:00Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:34–18:21 on the 3rd, 16:33–18:20 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 0 of 107 minutes on the 3rd and 107 of 107 on the 4th.",
          "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: purvaviddha → only-day · margin 28805 s"
        },
        {
          "step": "ruling",
          "text": "Govatsa Dvādaśī, Mashhad, 1999: Thursday 4 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": "1999-11-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Govatsa Dvādaśī (Vasu Baras) 1999 falls on Thursday 4 November. Dvādaśī runs from 02:21 on Thu 4 Nov to 03:03 on Fri 5 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/yama-dipadana",
      "festival": "yama-dipadana",
      "name": "Yama Dīpadāna",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31371,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-11-05T03:03:00+03:30",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        },
        "end": {
          "local": "1999-11-06T04:08:18+03:30",
          "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": "1999-11-05T03:03:00+03:30",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        },
        "end": {
          "local": "1999-11-06T04:08:18+03:30",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-04",
          "window": {
            "start": {
              "local": "1999-11-04T16:32:46+03:30",
              "utc": "1999-11-04T13:02:46Z",
              "ms": 941720566175.6194
            },
            "end": {
              "local": "1999-11-04T18:20:09+03:30",
              "utc": "1999-11-04T14:50:09Z",
              "ms": 941727008583.0945
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        },
        {
          "local_date": "1999-11-05",
          "window": {
            "start": {
              "local": "1999-11-05T16:31:48+03:30",
              "utc": "1999-11-05T13:01:48Z",
              "ms": 941806908476.1625
            },
            "end": {
              "local": "1999-11-05T18:19:27+03:30",
              "utc": "1999-11-05T14:49:27Z",
              "ms": 941813366603.2261
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 03:03 on Fri 5 Nov to 04:08 on Sat 6 Nov.",
          "fact": "1999-11-04T23:33:00Z → 1999-11-06T00:38:18Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:33–18:20 on the 4th, 16:32–18:19 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 0 of 107 minutes on the 4th and 108 of 108 on the 5th.",
          "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 31371 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dīpadāna, Mashhad, 1999: Friday 5 November.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Yama Dīpadāna 1999 falls on Friday 5 November. Trayodaśī runs from 03:03 on Fri 5 Nov to 04:08 on Sat 6 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-11-05",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31371,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-11-05T03:03:00+03:30",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        },
        "end": {
          "local": "1999-11-06T04:08:18+03:30",
          "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": "1999-11-05T03:03:00+03:30",
          "utc": "1999-11-04T23:33:00Z",
          "ms": 941758379631.2184
        },
        "end": {
          "local": "1999-11-06T04:08:18+03:30",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-04",
          "window": {
            "start": {
              "local": "1999-11-04T16:32:46+03:30",
              "utc": "1999-11-04T13:02:46Z",
              "ms": 941720566175.6194
            },
            "end": {
              "local": "1999-11-04T18:20:09+03:30",
              "utc": "1999-11-04T14:50:09Z",
              "ms": 941727008583.0945
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        },
        {
          "local_date": "1999-11-05",
          "window": {
            "start": {
              "local": "1999-11-05T16:31:48+03:30",
              "utc": "1999-11-05T13:01:48Z",
              "ms": 941806908476.1625
            },
            "end": {
              "local": "1999-11-05T18:19:27+03:30",
              "utc": "1999-11-05T14:49:27Z",
              "ms": 941813366603.2261
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 03:03 on Fri 5 Nov to 04:08 on Sat 6 Nov.",
          "fact": "1999-11-04T23:33:00Z → 1999-11-06T00:38:18Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:33–18:20 on the 4th, 16:32–18:19 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 0 of 107 minutes on the 4th and 108 of 108 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 31371 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1999: Friday 5 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": "1999-11-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Friday 5 November. Trayodaśī runs from 03:03 on Fri 5 Nov to 04:08 on Sat 6 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/naraka-chaturdashi",
      "festival": "naraka-chaturdashi",
      "name": "Naraka Caturdaśī",
      "everyday": "Choti Diwali",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-06",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 188,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-11-06T04:08:18+03:30",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        },
        "end": {
          "local": "1999-11-07T05:35:20+03:30",
          "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": "1999-11-06T04:08:18+03:30",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        },
        "end": {
          "local": "1999-11-07T05:35:20+03:30",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "1999-11-06",
          "window": {
            "start": {
              "local": "1999-11-06T04:11:26+03:30",
              "utc": "1999-11-06T00:41:26Z",
              "ms": 941848886302.0757
            },
            "end": {
              "local": "1999-11-06T05:59:04+03:30",
              "utc": "1999-11-06T02:29:04Z",
              "ms": 941855344429.1393
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        },
        {
          "local_date": "1999-11-07",
          "window": {
            "start": {
              "local": "1999-11-07T04:12:11+03:30",
              "utc": "1999-11-07T00:42:11Z",
              "ms": 941935331158.4862
            },
            "end": {
              "local": "1999-11-07T06:00:05+03:30",
              "utc": "1999-11-07T02:30:05Z",
              "ms": 941941804841.1997
            }
          },
          "covered_min": 83,
          "window_min": 108,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 04:08 on Sat 6 Nov to 05:35 on Sun 7 Nov.",
          "fact": "1999-11-06T00:38:18Z → 1999-11-07T02:05:20Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:11–05:59 on the 6th, 04:12–06:00 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 108 of 108 minutes on the 6th and 83 of 108 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Both dawns qualify. Pūrvaviddhā: the first is taken.",
          "fact": "priority: purvaviddha → purvaviddha · margin 188 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Naraka Caturdaśī, Mashhad, 1999: Saturday 6 November.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "boundary"
        }
      ],
      "quote": "In Mashhad, Naraka Caturdaśī (Choti Diwali) 1999 falls on Saturday 6 November. Caturdaśī runs from 04:08 on Sat 6 Nov to 05:35 on Sun 7 Nov and covers all of aruṇodaya that dawn. It also reaches the next dawn for 83 minutes; by the rule the first dawn is taken. It is 3 min 08 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/shivaratri?on=1999-11-06",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16132,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-11-06T04:08:18+03:30",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        },
        "end": {
          "local": "1999-11-07T05:35:20+03:30",
          "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": "1999-11-06T04:08:18+03:30",
          "utc": "1999-11-06T00:38:18Z",
          "ms": 941848698189.9823
        },
        "end": {
          "local": "1999-11-07T05:35:20+03:30",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-11-05",
          "window": {
            "start": {
              "local": "1999-11-05T22:51:26+03:30",
              "utc": "1999-11-05T19:21:26Z",
              "ms": 941829686452.6509
            },
            "end": {
              "local": "1999-11-05T23:39:26+03:30",
              "utc": "1999-11-05T20:09:26Z",
              "ms": 941832566452.6509
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-11-06",
          "window": {
            "start": {
              "local": "1999-11-06T22:51:29+03:30",
              "utc": "1999-11-06T19:21:29Z",
              "ms": 941916088531.0239
            },
            "end": {
              "local": "1999-11-06T23:39:29+03:30",
              "utc": "1999-11-06T20:09:29Z",
              "ms": 941918968531.0239
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 04:08 on Sat 6 Nov to 05:35 on Sun 7 Nov.",
          "fact": "1999-11-06T00:38:18Z → 1999-11-07T02:05:20Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:51–23:39 on the 5th, 22:51–23:39 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 0 of 48 minutes on the 5th and 48 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 16132 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 1999: Saturday 6 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": "1999-11-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 1999 falls on Saturday 6 November. Caturdaśī runs from 04:08 on Sat 6 Nov to 05:35 on Sun 7 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/shivaratri?on=1999-11-06",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/diwali-lakshmi-puja",
      "festival": "diwali-lakshmi-puja",
      "name": "Lakṣmī Pūjā",
      "everyday": "Diwali",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32763,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "1999-11-07T05:35:20+03:30",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        },
        "end": {
          "local": "1999-11-08T07:23:01+03:30",
          "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": "1999-11-07T05:35:20+03:30",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        },
        "end": {
          "local": "1999-11-08T07:23:01+03:30",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-07",
          "window": {
            "start": {
              "local": "1999-11-07T16:29:57+03:30",
              "utc": "1999-11-07T12:59:57Z",
              "ms": 941979597438.0566
            },
            "end": {
              "local": "1999-11-07T18:18:07+03:30",
              "utc": "1999-11-07T14:48:07Z",
              "ms": 941986086505.4387
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        },
        {
          "local_date": "1999-11-08",
          "window": {
            "start": {
              "local": "1999-11-08T16:29:04+03:30",
              "utc": "1999-11-08T12:59:04Z",
              "ms": 942065944155.8274
            },
            "end": {
              "local": "1999-11-08T18:17:28+03:30",
              "utc": "1999-11-08T14:47:28Z",
              "ms": 942072448429.6947
            }
          },
          "covered_min": 0,
          "window_min": 108,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 05:35 on Sun 7 Nov to 07:23 on Mon 8 Nov.",
          "fact": "1999-11-07T02:05:20Z → 1999-11-08T03:53:01Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:30–18:18 on the 7th, 16:29–18:17 on the 8th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during pradoṣa. It covers 108 of 108 minutes on the 7th and 0 of 108 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 32763 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pūjā, Mashhad, 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 Mashhad, Lakṣmī Pūjā (Diwali) 1999 falls on Sunday 7 November. Amāvasyā runs from 05:35 on Sun 7 Nov to 07:23 on Mon 8 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/kali-puja",
      "festival": "kali-puja",
      "name": "Kālī Pūjā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21351,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "1999-11-07T05:35:20+03:30",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        },
        "end": {
          "local": "1999-11-08T07:23:01+03:30",
          "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": "1999-11-07T05:35:20+03:30",
          "utc": "1999-11-07T02:05:20Z",
          "ms": 941940319608.4644
        },
        "end": {
          "local": "1999-11-08T07:23:01+03:30",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-11-06",
          "window": {
            "start": {
              "local": "1999-11-06T22:51:29+03:30",
              "utc": "1999-11-06T19:21:29Z",
              "ms": 941916088531.0239
            },
            "end": {
              "local": "1999-11-06T23:39:29+03:30",
              "utc": "1999-11-06T20:09:29Z",
              "ms": 941918968531.0239
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-11-07",
          "window": {
            "start": {
              "local": "1999-11-07T22:51:31+03:30",
              "utc": "1999-11-07T19:21:31Z",
              "ms": 942002491440.7393
            },
            "end": {
              "local": "1999-11-07T23:39:31+03:30",
              "utc": "1999-11-07T20:09:31Z",
              "ms": 942005371440.7393
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 05:35 on Sun 7 Nov to 07:23 on Mon 8 Nov.",
          "fact": "1999-11-07T02:05:20Z → 1999-11-08T03:53:01Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:51–23:39 on the 6th, 22:52–23:40 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 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 21351 s"
        },
        {
          "step": "ruling",
          "text": "Kālī Pūjā, Mashhad, 1999: Sunday 7 November.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "1999-11-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kālī Pūjā 1999 falls on Sunday 7 November. Amāvasyā runs from 05:35 on Sun 7 Nov to 07:23 on Mon 8 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/govardhana-puja",
      "festival": "govardhana-puja",
      "name": "Govardhana Pūjā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4859,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-11-08T07:23:01+03:30",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T09:30:10+03:30",
          "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": "1999-11-08T07:23:01+03:30",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T09:30:10+03:30",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-08",
          "window": {
            "start": {
              "local": "1999-11-08T10:51:05+03:30",
              "utc": "1999-11-08T07:21:05Z",
              "ms": 942045664799.6248
            },
            "end": {
              "local": "1999-11-08T11:39:05+03:30",
              "utc": "1999-11-08T08:09:05Z",
              "ms": 942048544799.6248
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-09",
          "window": {
            "start": {
              "local": "1999-11-09T10:51:09+03:30",
              "utc": "1999-11-09T07:21:09Z",
              "ms": 942132069305.8844
            },
            "end": {
              "local": "1999-11-09T11:39:09+03:30",
              "utc": "1999-11-09T08:09:09Z",
              "ms": 942134949305.8844
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 07:23 on Mon 8 Nov to 09:30 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: 10:51–11:39 on the 8th, 10:51–11:39 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 4859 s"
        },
        {
          "step": "ruling",
          "text": "Govardhana Pūjā, Mashhad, 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 Mashhad, Govardhana Pūjā 1999 falls on Monday 8 November. Pratipadā runs from 07:23 on Mon 8 Nov to 09:30 on Tue 9 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/bali-puja",
      "festival": "bali-puja",
      "name": "Bali Pūjā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25082,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-11-08T07:23:01+03:30",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T09:30:10+03:30",
          "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": "1999-11-08T07:23:01+03:30",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T09:30:10+03:30",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-08",
          "window": {
            "start": {
              "local": "1999-11-08T16:29:04+03:30",
              "utc": "1999-11-08T12:59:04Z",
              "ms": 942065944155.8274
            },
            "end": {
              "local": "1999-11-08T18:17:28+03:30",
              "utc": "1999-11-08T14:47:28Z",
              "ms": 942072448429.6947
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        },
        {
          "local_date": "1999-11-09",
          "window": {
            "start": {
              "local": "1999-11-09T16:28:12+03:30",
              "utc": "1999-11-09T12:58:12Z",
              "ms": 942152292401.9365
            },
            "end": {
              "local": "1999-11-09T18:16:52+03:30",
              "utc": "1999-11-09T14:46:52Z",
              "ms": 942158811696.7485
            }
          },
          "covered_min": 0,
          "window_min": 109,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 07:23 on Mon 8 Nov to 09:30 on Tue 9 Nov.",
          "fact": "1999-11-08T03:53:01Z → 1999-11-09T06:00:10Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:29–18:17 on the 8th, 16:28–18:17 on the 9th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during pradoṣa. It covers 108 of 108 minutes on the 8th and 0 of 109 on the 9th.",
          "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 25082 s"
        },
        {
          "step": "ruling",
          "text": "Bali Pūjā, Mashhad, 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 Mashhad, Bali Pūjā 1999 falls on Monday 8 November. Pratipadā runs from 07:23 on Mon 8 Nov to 09:30 on Tue 9 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/yama-dvitiya",
      "festival": "yama-dvitiya",
      "name": "Yama Dvitīyā",
      "everyday": "Bhai Dooj",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 909,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "1999-11-09T09:30:10+03:30",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        },
        "end": {
          "local": "1999-11-10T11:54:24+03:30",
          "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": "1999-11-09T09:30:10+03:30",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        },
        "end": {
          "local": "1999-11-10T11:54:24+03:30",
          "utc": "1999-11-10T08:24:24Z",
          "ms": 942222263684.9908
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-09",
          "window": {
            "start": {
              "local": "1999-11-09T10:51:09+03:30",
              "utc": "1999-11-09T07:21:09Z",
              "ms": 942132069305.8844
            },
            "end": {
              "local": "1999-11-09T11:39:09+03:30",
              "utc": "1999-11-09T08:09:09Z",
              "ms": 942134949305.8844
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-10",
          "window": {
            "start": {
              "local": "1999-11-10T10:51:15+03:30",
              "utc": "1999-11-10T07:21:15Z",
              "ms": 942218474658.4845
            },
            "end": {
              "local": "1999-11-10T11:39:15+03:30",
              "utc": "1999-11-10T08:09:15Z",
              "ms": 942221354658.4845
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 09:30 on Tue 9 Nov to 11:54 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: 10:51–11:39 on the 9th, 10:51–11:39 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 48 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Pūrvaviddhā: the first is taken.",
          "fact": "priority: purvaviddha → purvaviddha · margin 909 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dvitīyā, Mashhad, 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 Mashhad, Yama Dvitīyā (Bhai Dooj) 1999 falls on Tuesday 9 November. Dvitīyā runs from 09:30 on Tue 9 Nov to 11:54 on Wed 10 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/dyuta-pratipad",
      "festival": "dyuta-pratipad",
      "name": "Dyūta Pratipad",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-09",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin",
        "tie-break-unstated"
      ],
      "boundary_margin_s": 38,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "1999-11-08T07:23:01+03:30",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T09:30:10+03:30",
          "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": "1999-11-08T07:23:01+03:30",
          "utc": "1999-11-08T03:53:01Z",
          "ms": 942033181286.4562
        },
        "end": {
          "local": "1999-11-09T09:30:10+03:30",
          "utc": "1999-11-09T06:00:10Z",
          "ms": 942127210046.2234
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "1999-11-08",
          "window": {
            "start": {
              "local": "1999-11-08T06:01:05+03:30",
              "utc": "1999-11-08T02:31:05Z",
              "ms": 942028265443.422
            },
            "end": {
              "local": "1999-11-08T09:30:25+03:30",
              "utc": "1999-11-08T06:00:25Z",
              "ms": 942040825014.2238
            }
          },
          "covered_min": 127,
          "window_min": 209,
          "qualifies": true
        },
        {
          "local_date": "1999-11-09",
          "window": {
            "start": {
              "local": "1999-11-09T06:02:06+03:30",
              "utc": "1999-11-09T02:32:06Z",
              "ms": 942114726209.8323
            },
            "end": {
              "local": "1999-11-09T09:30:48+03:30",
              "utc": "1999-11-09T06:00:48Z",
              "ms": 942127248273.8671
            }
          },
          "covered_min": 208,
          "window_min": 209,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 07:23 on Mon 8 Nov to 09:30 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: 06:01–09:30 on the 8th, 06:02–09:31 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 127 of 209 minutes on the 8th and 208 of 209 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Both forenoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 38 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Dyūta Pratipad, Mashhad, 1999: Tuesday 9 November.",
          "fact": "confidence: boundary (margin, tie-break-unstated)"
        }
      ],
      "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": "1999-11-09",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-09",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Dyūta Pratipad 1999 falls on Tuesday 9 November. Pratipadā runs from 07:23 on Mon 8 Nov to 09:30 on Tue 9 Nov and covers 208 of 209 minutes of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 127 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 38 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/naga-chaturthi",
      "festival": "naga-chaturthi",
      "name": "Nāga Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10309,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-11-11T14:31:09+03:30",
          "utc": "1999-11-11T11:01:09Z",
          "ms": 942318069475.48
        },
        "end": {
          "local": "1999-11-12T17:12:59+03:30",
          "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": "1999-11-11T14:31:09+03:30",
          "utc": "1999-11-11T11:01:09Z",
          "ms": 942318069475.48
        },
        "end": {
          "local": "1999-11-12T17:12:59+03:30",
          "utc": "1999-11-12T13:42:59Z",
          "ms": 942414179445.1904
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-11",
          "window": {
            "start": {
              "local": "1999-11-11T10:51:21+03:30",
              "utc": "1999-11-11T07:21:21Z",
              "ms": 942304880856.7366
            },
            "end": {
              "local": "1999-11-11T11:39:21+03:30",
              "utc": "1999-11-11T08:09:21Z",
              "ms": 942307760856.7366
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-11-12",
          "window": {
            "start": {
              "local": "1999-11-12T10:51:28+03:30",
              "utc": "1999-11-12T07:21:28Z",
              "ms": 942391287899.2278
            },
            "end": {
              "local": "1999-11-12T11:39:28+03:30",
              "utc": "1999-11-12T08:09:28Z",
              "ms": 942394167899.2278
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 14:31 on Thu 11 Nov to 17:13 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: 10:51–11:39 on the 11th, 10:51–11:39 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 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 10309 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Caturthī, Mashhad, 1999: Friday 12 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": "1999-11-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Nāga Caturthī 1999 falls on Friday 12 November. Caturthī runs from 14:31 on Thu 11 Nov to 17:13 on Fri 12 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-11-12",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10309,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-11-11T14:31:09+03:30",
          "utc": "1999-11-11T11:01:09Z",
          "ms": 942318069475.48
        },
        "end": {
          "local": "1999-11-12T17:12:59+03:30",
          "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": "1999-11-11T14:31:09+03:30",
          "utc": "1999-11-11T11:01:09Z",
          "ms": 942318069475.48
        },
        "end": {
          "local": "1999-11-12T17:12:59+03:30",
          "utc": "1999-11-12T13:42:59Z",
          "ms": 942414179445.1904
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-11",
          "window": {
            "start": {
              "local": "1999-11-11T10:51:21+03:30",
              "utc": "1999-11-11T07:21:21Z",
              "ms": 942304880856.7366
            },
            "end": {
              "local": "1999-11-11T11:39:21+03:30",
              "utc": "1999-11-11T08:09:21Z",
              "ms": 942307760856.7366
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-11-12",
          "window": {
            "start": {
              "local": "1999-11-12T10:51:28+03:30",
              "utc": "1999-11-12T07:21:28Z",
              "ms": 942391287899.2278
            },
            "end": {
              "local": "1999-11-12T11:39:28+03:30",
              "utc": "1999-11-12T08:09:28Z",
              "ms": 942394167899.2278
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 14:31 on Thu 11 Nov to 17:13 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: 10:51–11:39 on the 11th, 10:51–11:39 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 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 10309 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 1999: Friday 12 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": "1999-11-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 1999 falls on Friday 12 November. Caturthī runs from 14:31 on Thu 11 Nov to 17:13 on Fri 12 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-11-12",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/surya-shashthi",
      "festival": "surya-shashthi",
      "name": "Sūrya Ṣaṣṭhī",
      "everyday": "Chhath",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29389,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-11-13T19:49:25+03:30",
          "utc": "1999-11-13T16:19:25Z",
          "ms": 942509964832.8601
        },
        "end": {
          "local": "1999-11-14T22:07:46+03:30",
          "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": "1999-11-13T19:49:25+03:30",
          "utc": "1999-11-13T16:19:25Z",
          "ms": 942509964832.8601
        },
        "end": {
          "local": "1999-11-14T22:07:46+03:30",
          "utc": "1999-11-14T18:37:46Z",
          "ms": 942604665956.1405
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-13",
          "window": {
            "start": {
              "local": "1999-11-13T10:51:36+03:30",
              "utc": "1999-11-13T07:21:36Z",
              "ms": 942477695783.8505
            },
            "end": {
              "local": "1999-11-13T11:39:36+03:30",
              "utc": "1999-11-13T08:09:36Z",
              "ms": 942480575783.8505
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-11-14",
          "window": {
            "start": {
              "local": "1999-11-14T10:51:45+03:30",
              "utc": "1999-11-14T07:21:45Z",
              "ms": 942564104507.8252
            },
            "end": {
              "local": "1999-11-14T11:39:45+03:30",
              "utc": "1999-11-14T08:09:45Z",
              "ms": 942566984507.8252
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 19:49 on Sat 13 Nov to 22:08 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: 10:52–11:40 on the 13th, 10:52–11:40 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 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29389 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī, Mashhad, 1999: Sunday 14 November.",
          "fact": "confidence: determinate"
        }
      ],
      "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": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Sūrya Ṣaṣṭhī (Chhath) 1999 falls on Sunday 14 November. Ṣaṣṭhī runs from 19:49 on Sat 13 Nov to 22:08 on Sun 14 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/gopashtami",
      "festival": "gopashtami",
      "name": "Gopāṣṭamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35570,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "1999-11-15T23:54:55+03:30",
          "utc": "1999-11-15T20:24:55Z",
          "ms": 942697495126.7529
        },
        "end": {
          "local": "1999-11-17T00:59:25+03:30",
          "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": "1999-11-15T23:54:55+03:30",
          "utc": "1999-11-15T20:24:55Z",
          "ms": 942697495126.7529
        },
        "end": {
          "local": "1999-11-17T00:59:25+03:30",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-16",
          "window": {
            "start": {
              "local": "1999-11-16T10:52:04+03:30",
              "utc": "1999-11-16T07:22:04Z",
              "ms": 942736924459.5483
            },
            "end": {
              "local": "1999-11-16T11:40:04+03:30",
              "utc": "1999-11-16T08:10:04Z",
              "ms": 942739804459.5483
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-17",
          "window": {
            "start": {
              "local": "1999-11-17T10:52:16+03:30",
              "utc": "1999-11-17T07:22:16Z",
              "ms": 942823335678.7444
            },
            "end": {
              "local": "1999-11-17T11:40:16+03:30",
              "utc": "1999-11-17T08:10:16Z",
              "ms": 942826215678.7444
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 23:55 on Mon 15 Nov to 00:59 on Wed 17 Nov.",
          "fact": "1999-11-15T20:24:55Z → 1999-11-16T21:29:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 16th, 10:52–11:40 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 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 midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 35570 s"
        },
        {
          "step": "ruling",
          "text": "Gopāṣṭamī, Mashhad, 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 Mashhad, Gopāṣṭamī 1999 falls on Tuesday 16 November. Aṣṭamī runs from 23:55 on Mon 15 Nov to 00:59 on Wed 17 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/akshaya-navami",
      "festival": "akshaya-navami",
      "name": "Akṣaya Navamī",
      "everyday": "Amla Navami",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17872,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1999-11-17T00:59:25+03:30",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        },
        "end": {
          "local": "1999-11-18T01:13:24+03:30",
          "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": "1999-11-17T00:59:25+03:30",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        },
        "end": {
          "local": "1999-11-18T01:13:24+03:30",
          "utc": "1999-11-17T21:43:24Z",
          "ms": 942875003819.5128
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "1999-11-17",
          "window": {
            "start": {
              "local": "1999-11-17T06:10:15+03:30",
              "utc": "1999-11-17T02:40:15Z",
              "ms": 942806414704.5444
            },
            "end": {
              "local": "1999-11-17T09:34:15+03:30",
              "utc": "1999-11-17T06:04:15Z",
              "ms": 942818655354.011
            }
          },
          "covered_min": 204,
          "window_min": 204,
          "qualifies": true
        },
        {
          "local_date": "1999-11-18",
          "window": {
            "start": {
              "local": "1999-11-18T06:11:16+03:30",
              "utc": "1999-11-18T02:41:16Z",
              "ms": 942892875572.8816
            },
            "end": {
              "local": "1999-11-18T09:34:44+03:30",
              "utc": "1999-11-18T06:04:44Z",
              "ms": 942905083671.218
            }
          },
          "covered_min": 0,
          "window_min": 203,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 00:59 on Wed 17 Nov to 01:13 on Thu 18 Nov.",
          "fact": "1999-11-16T21:29:25Z → 1999-11-17T21:43:24Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:10–09:34 on the 17th, 06:11–09:35 on the 18th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during pūrvāhṇa. It covers 204 of 204 minutes on the 17th and 0 of 203 on the 18th.",
          "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 17872 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Navamī, Mashhad, 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 Mashhad, Akṣaya Navamī (Amla Navami) 1999 falls on Wednesday 17 November. Navamī runs from 00:59 on Wed 17 Nov to 01:13 on Thu 18 Nov and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/durga-navami",
      "festival": "durga-navami",
      "name": "Durgā Navamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34744,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "1999-11-17T00:59:25+03:30",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        },
        "end": {
          "local": "1999-11-18T01:13:24+03:30",
          "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": "1999-11-17T00:59:25+03:30",
          "utc": "1999-11-16T21:29:25Z",
          "ms": 942787765471.1362
        },
        "end": {
          "local": "1999-11-18T01:13:24+03:30",
          "utc": "1999-11-17T21:43:24Z",
          "ms": 942875003819.5128
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-17",
          "window": {
            "start": {
              "local": "1999-11-17T10:52:16+03:30",
              "utc": "1999-11-17T07:22:16Z",
              "ms": 942823335678.7444
            },
            "end": {
              "local": "1999-11-17T11:40:16+03:30",
              "utc": "1999-11-17T08:10:16Z",
              "ms": 942826215678.7444
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-18",
          "window": {
            "start": {
              "local": "1999-11-18T10:52:28+03:30",
              "utc": "1999-11-18T07:22:28Z",
              "ms": 942909747720.3862
            },
            "end": {
              "local": "1999-11-18T11:40:28+03:30",
              "utc": "1999-11-18T08:10:28Z",
              "ms": 942912627720.3862
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 00:59 on Wed 17 Nov to 01:13 on Thu 18 Nov.",
          "fact": "1999-11-16T21:29:25Z → 1999-11-17T21:43:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 17th, 10:52–11:40 on the 18th.",
          "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 17th and 0 of 48 on the 18th.",
          "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 34744 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Navamī, Mashhad, 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 Mashhad, Durgā Navamī 1999 falls on Wednesday 17 November. Navamī runs from 00:59 on Wed 17 Nov to 01:13 on Thu 18 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-11-19",
      "festival": "ekadashi",
      "name": "Prabodhinī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20323,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-11-19T00:33:34+03:30",
          "utc": "1999-11-18T21:03:34Z",
          "ms": 942959013584.2727
        },
        "end": {
          "local": "1999-11-19T23:01:18+03:30",
          "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": "1999-11-19T00:33:34+03:30",
          "utc": "1999-11-18T21:03:34Z",
          "ms": 942959013584.2727
        },
        "end": {
          "local": "1999-11-19T23:01:18+03:30",
          "utc": "1999-11-19T19:31:18Z",
          "ms": 943039878340.3079
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-11-19",
          "window": {
            "start": {
              "local": "1999-11-19T06:12:16+03:30",
              "utc": "1999-11-19T02:42:16Z",
              "ms": 942979336282.1257
            },
            "end": {
              "local": "1999-11-19T06:12:16+03:30",
              "utc": "1999-11-19T02:42:16Z",
              "ms": 942979336282.1257
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-11-20",
          "window": {
            "start": {
              "local": "1999-11-20T06:13:17+03:30",
              "utc": "1999-11-20T02:43:17Z",
              "ms": 943065796796.5677
            },
            "end": {
              "local": "1999-11-20T06:13:17+03:30",
              "utc": "1999-11-20T02:43:17Z",
              "ms": 943065796796.5677
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 00:34 on Fri 19 Nov to 23:01 on Fri 19 Nov.",
          "fact": "1999-11-18T21:03:34Z → 1999-11-19T19:31:18Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:12 on the 19th and 06:13 on the 20th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 19th and is not on the 20th.",
          "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 20323 s"
        },
        {
          "step": "ruling",
          "text": "Prabodhinī Ekādaśī, Mashhad, 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 Mashhad, Prabodhinī Ekādaśī 1999 falls on Friday 19 November. Ekādaśī runs from 00:34 on Fri 19 Nov to 23:01 on Fri 19 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-11-21",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1643,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-11-20T20:42:01+03:30",
          "utc": "1999-11-20T17:12:01Z",
          "ms": 943117920527.8296
        },
        "end": {
          "local": "1999-11-21T17:43:59+03:30",
          "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": "1999-11-20T20:42:01+03:30",
          "utc": "1999-11-20T17:12:01Z",
          "ms": 943117920527.8296
        },
        "end": {
          "local": "1999-11-21T17:43:59+03:30",
          "utc": "1999-11-21T14:13:59Z",
          "ms": 943193639308.5997
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-11-20",
          "window": {
            "start": {
              "local": "1999-11-20T16:20:32+03:30",
              "utc": "1999-11-20T12:50:32Z",
              "ms": 943102231703.925
            },
            "end": {
              "local": "1999-11-20T18:11:42+03:30",
              "utc": "1999-11-20T14:41:42Z",
              "ms": 943108901754.1876
            }
          },
          "covered_min": 0,
          "window_min": 111,
          "qualifies": false
        },
        {
          "local_date": "1999-11-21",
          "window": {
            "start": {
              "local": "1999-11-21T16:20:00+03:30",
              "utc": "1999-11-21T12:50:00Z",
              "ms": 943188600375.141
            },
            "end": {
              "local": "1999-11-21T18:11:23+03:30",
              "utc": "1999-11-21T14:41:23Z",
              "ms": 943195282605.164
            }
          },
          "covered_min": 84,
          "window_min": 111,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 20:42 on Sat 20 Nov to 17:44 on Sun 21 Nov.",
          "fact": "1999-11-20T17:12:01Z → 1999-11-21T14:13:59Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:21–18:12 on the 20th, 16:20–18:11 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 0 of 111 minutes on the 20th and 84 of 111 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 1643 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 1999: Sunday 21 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": "1999-11-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 1999 falls on Sunday 21 November. Trayodaśī runs from 20:42 on Sat 20 Nov to 17:44 on Sun 21 Nov and covers 84 of 111 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/pradosha-vrata?on=1999-11-21",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/rasayatra",
      "festival": "rasayatra",
      "name": "Rāsayātrā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30986,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-11-22T14:17:28+03:30",
          "utc": "1999-11-22T10:47:28Z",
          "ms": 943267647657.0056
        },
        "end": {
          "local": "1999-11-23T10:33:39+03:30",
          "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": "1999-11-22T14:17:28+03:30",
          "utc": "1999-11-22T10:47:28Z",
          "ms": 943267647657.0056
        },
        "end": {
          "local": "1999-11-23T10:33:39+03:30",
          "utc": "1999-11-23T07:03:39Z",
          "ms": 943340619209.6326
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-11-22",
          "window": {
            "start": {
              "local": "1999-11-22T22:53:54+03:30",
              "utc": "1999-11-22T19:23:54Z",
              "ms": 943298633867.4714
            },
            "end": {
              "local": "1999-11-22T23:41:54+03:30",
              "utc": "1999-11-22T20:11:54Z",
              "ms": 943301513867.4714
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-11-23",
          "window": {
            "start": {
              "local": "1999-11-23T22:54:10+03:30",
              "utc": "1999-11-23T19:24:10Z",
              "ms": 943385049776.2032
            },
            "end": {
              "local": "1999-11-23T23:42:10+03:30",
              "utc": "1999-11-23T20:12:10Z",
              "ms": 943387929776.2032
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 14:17 on Mon 22 Nov to 10:34 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: 22:54–23:42 on the 22nd, 22:54–23:42 on the 23rd.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during niśītha. 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 night qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 30986 s"
        },
        {
          "step": "ruling",
          "text": "Rāsayātrā, Mashhad, 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 Mashhad, Rāsayātrā 1999 falls on Monday 22 November. Pūrṇimā runs from 14:17 on Mon 22 Nov to 10:34 on Tue 23 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/kartiki-purnima",
      "festival": "kartiki-purnima",
      "name": "Kārtikī Pūrṇimā",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1201,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-11-22T14:17:28+03:30",
          "utc": "1999-11-22T10:47:28Z",
          "ms": 943267647657.0056
        },
        "end": {
          "local": "1999-11-23T10:33:39+03:30",
          "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": "1999-11-22T14:17:28+03:30",
          "utc": "1999-11-22T10:47:28Z",
          "ms": 943267647657.0056
        },
        "end": {
          "local": "1999-11-23T10:33:39+03:30",
          "utc": "1999-11-23T07:03:39Z",
          "ms": 943340619209.6326
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-11-22",
          "window": {
            "start": {
              "local": "1999-11-22T10:53:24+03:30",
              "utc": "1999-11-22T07:23:24Z",
              "ms": 943255404007.4609
            },
            "end": {
              "local": "1999-11-22T11:41:24+03:30",
              "utc": "1999-11-22T08:11:24Z",
              "ms": 943258284007.4609
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-11-23",
          "window": {
            "start": {
              "local": "1999-11-23T10:53:40+03:30",
              "utc": "1999-11-23T07:23:40Z",
              "ms": 943341820083.2822
            },
            "end": {
              "local": "1999-11-23T11:41:40+03:30",
              "utc": "1999-11-23T08:11:40Z",
              "ms": 943344700083.2822
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 14:17 on Mon 22 Nov to 10:34 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: 10:53–11:41 on the 22nd, 10:54–11:42 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 0 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": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: unstated → second-day · margin 1201 s"
        },
        {
          "step": "ruling",
          "text": "Kārtikī Pūrṇimā, Mashhad, 1999: Tuesday 23 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": "1999-11-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kārtikī Pūrṇimā 1999 falls on Tuesday 23 November. Pūrṇimā runs from 14:17 on Mon 22 Nov to 10:34 on Tue 23 Nov, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-11-26",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-11-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2909,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-11-25T23:32:28+03:30",
          "utc": "1999-11-25T20:02:28Z",
          "ms": 943560148368.871
        },
        "end": {
          "local": "1999-11-26T20:30:29+03:30",
          "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": "1999-11-25T23:32:28+03:30",
          "utc": "1999-11-25T20:02:28Z",
          "ms": 943560148368.871
        },
        "end": {
          "local": "1999-11-26T20:30:29+03:30",
          "utc": "1999-11-26T17:00:29Z",
          "ms": 943635629346.655
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-11-25",
          "window": {
            "start": {
              "local": "1999-11-25T18:38:58+03:30",
              "utc": "1999-11-25T15:08:58Z",
              "ms": 943542538347.2009
            },
            "end": {
              "local": "1999-11-25T18:38:58+03:30",
              "utc": "1999-11-25T15:08:58Z",
              "ms": 943542538347.2009
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-11-26",
          "window": {
            "start": {
              "local": "1999-11-26T19:42:01+03:30",
              "utc": "1999-11-26T16:12:01Z",
              "ms": 943632720552.043
            },
            "end": {
              "local": "1999-11-26T19:42:01+03:30",
              "utc": "1999-11-26T16:12:01Z",
              "ms": 943632720552.043
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 23:32 on Thu 25 Nov to 20:30 on Fri 26 Nov.",
          "fact": "1999-11-25T20:02:28Z → 1999-11-26T17:00:29Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 18:39 on the 25th and 19:42 on the 26th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 25th and is 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 2909 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 1999: Friday 26 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": "1999-11-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-11-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Friday 26 November. Caturthī runs from 23:32 on Thu 25 Nov to 20:30 on Fri 26 Nov and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/sankashta-chaturthi?on=1999-11-26",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/ekadashi?on=1999-12-03",
      "festival": "ekadashi",
      "name": "Utpannā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33902,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-12-02T15:49:57+03:30",
          "utc": "1999-12-02T12:19:57Z",
          "ms": 944137196775.0719
        },
        "end": {
          "local": "1999-12-03T17:12:41+03:30",
          "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": "1999-12-02T15:49:57+03:30",
          "utc": "1999-12-02T12:19:57Z",
          "ms": 944137196775.0719
        },
        "end": {
          "local": "1999-12-03T17:12:41+03:30",
          "utc": "1999-12-03T13:42:41Z",
          "ms": 944228560957.4375
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-12-02",
          "window": {
            "start": {
              "local": "1999-12-02T06:24:55+03:30",
              "utc": "1999-12-02T02:54:55Z",
              "ms": 944103294509.5165
            },
            "end": {
              "local": "1999-12-02T06:24:55+03:30",
              "utc": "1999-12-02T02:54:55Z",
              "ms": 944103294509.5165
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-12-03",
          "window": {
            "start": {
              "local": "1999-12-03T06:25:49+03:30",
              "utc": "1999-12-03T02:55:49Z",
              "ms": 944189749019.6166
            },
            "end": {
              "local": "1999-12-03T06:25:49+03:30",
              "utc": "1999-12-03T02:55:49Z",
              "ms": 944189749019.6166
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 15:50 on Thu 2 Dec to 17:13 on Fri 3 Dec.",
          "fact": "1999-12-02T12:19:57Z → 1999-12-03T13:42:41Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:25 on the 2nd and 06:26 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 33902 s"
        },
        {
          "step": "ruling",
          "text": "Utpannā Ekādaśī, Mashhad, 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 Mashhad, Utpannā Ekādaśī 1999 falls on Friday 3 December. Ekādaśī runs from 15:50 on Thu 2 Dec to 17:13 on Fri 3 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-12-05",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3032,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-12-04T19:00:14+03:30",
          "utc": "1999-12-04T15:30:14Z",
          "ms": 944321413831.3835
        },
        "end": {
          "local": "1999-12-05T21:07:16+03:30",
          "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": "1999-12-04T19:00:14+03:30",
          "utc": "1999-12-04T15:30:14Z",
          "ms": 944321413831.3835
        },
        "end": {
          "local": "1999-12-05T21:07:16+03:30",
          "utc": "1999-12-05T17:37:16Z",
          "ms": 944415435655.6576
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-12-04",
          "window": {
            "start": {
              "local": "1999-12-04T16:16:10+03:30",
              "utc": "1999-12-04T12:46:10Z",
              "ms": 944311570421.1501
            },
            "end": {
              "local": "1999-12-04T18:09:42+03:30",
              "utc": "1999-12-04T14:39:42Z",
              "ms": 944318381783.3397
            }
          },
          "covered_min": 0,
          "window_min": 114,
          "qualifies": false
        },
        {
          "local_date": "1999-12-05",
          "window": {
            "start": {
              "local": "1999-12-05T16:16:07+03:30",
              "utc": "1999-12-05T12:46:07Z",
              "ms": 944397966849.2352
            },
            "end": {
              "local": "1999-12-05T18:09:46+03:30",
              "utc": "1999-12-05T14:39:46Z",
              "ms": 944404785621.2859
            }
          },
          "covered_min": 114,
          "window_min": 114,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 19:00 on Sat 4 Dec to 21:07 on Sun 5 Dec.",
          "fact": "1999-12-04T15:30:14Z → 1999-12-05T17:37:16Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:16–18:10 on the 4th, 16:16–18:10 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 0 of 114 minutes on the 4th and 114 of 114 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 3032 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1999: Sunday 5 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": "1999-12-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-05",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1999 falls on Sunday 5 December. Trayodaśī runs from 19:00 on Sat 4 Dec to 21:07 on Sun 5 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/pradosha-vrata?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": "/mashhad/festivals/1999/shivaratri?on=1999-12-05",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-05",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 1055,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "1999-12-05T21:07:16+03:30",
          "utc": "1999-12-05T17:37:16Z",
          "ms": 944415435655.6576
        },
        "end": {
          "local": "1999-12-06T23:29:07+03:30",
          "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": "1999-12-05T21:07:16+03:30",
          "utc": "1999-12-05T17:37:16Z",
          "ms": 944415435655.6576
        },
        "end": {
          "local": "1999-12-06T23:29:07+03:30",
          "utc": "1999-12-06T19:59:07Z",
          "ms": 944510347415.0117
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "1999-12-05",
          "window": {
            "start": {
              "local": "1999-12-05T22:58:17+03:30",
              "utc": "1999-12-05T19:28:17Z",
              "ms": 944422097244.4253
            },
            "end": {
              "local": "1999-12-05T23:46:17+03:30",
              "utc": "1999-12-05T20:16:17Z",
              "ms": 944424977244.4253
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-12-06",
          "window": {
            "start": {
              "local": "1999-12-06T22:58:42+03:30",
              "utc": "1999-12-06T19:28:42Z",
              "ms": 944508522007.7972
            },
            "end": {
              "local": "1999-12-06T23:46:42+03:30",
              "utc": "1999-12-06T20:16:42Z",
              "ms": 944511402007.7972
            }
          },
          "covered_min": 30,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 21:07 on Sun 5 Dec to 23:29 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: 22:58–23:46 on the 5th, 22:59–23:47 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 30 of 48 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "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 1055 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 1999: Sunday 5 December.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "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": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-05",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Śivarātri 1999 falls on Sunday 5 December. Caturdaśī runs from 21:07 on Sun 5 Dec to 23:29 on Mon 6 Dec and covers all of niśītha that night. It also reaches the next night for 30 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/mashhad/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": "/mashhad/festivals/1999/vinayaka-chaturthi?on=1999-12-11",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-11",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 1550,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-12-11T09:54:32+03:30",
          "utc": "1999-12-11T06:24:32Z",
          "ms": 944893472130.4781
        },
        "end": {
          "local": "1999-12-12T12:14:48+03:30",
          "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": "1999-12-11T09:54:32+03:30",
          "utc": "1999-12-11T06:24:32Z",
          "ms": 944893472130.4781
        },
        "end": {
          "local": "1999-12-12T12:14:48+03:30",
          "utc": "1999-12-12T08:44:48Z",
          "ms": 944988287857.9584
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-11",
          "window": {
            "start": {
              "local": "1999-12-11T11:00:30+03:30",
              "utc": "1999-12-11T07:30:30Z",
              "ms": 944897430226.55
            },
            "end": {
              "local": "1999-12-11T11:48:30+03:30",
              "utc": "1999-12-11T08:18:30Z",
              "ms": 944900310226.55
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-12-12",
          "window": {
            "start": {
              "local": "1999-12-12T11:00:58+03:30",
              "utc": "1999-12-12T07:30:58Z",
              "ms": 944983858268.4934
            },
            "end": {
              "local": "1999-12-12T11:48:58+03:30",
              "utc": "1999-12-12T08:18:58Z",
              "ms": 944986738268.4934
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 09:55 on Sat 11 Dec to 12:15 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: 11:01–11:49 on the 11th, 11:01–11:49 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 48 of 48 on the 12th.",
          "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 1550 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 1999: Saturday 11 December.",
          "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": "1999-12-11",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-11",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 1999 falls on Saturday 11 December. Caturthī runs from 09:55 on Sat 11 Dec to 12:15 on Sun 12 Dec and covers all of madhyāhna that midday. It also reaches the next midday for 48 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/mashhad/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": "/mashhad/festivals/1999/naga-panchami-margashirsha",
      "festival": "naga-panchami-margashirsha",
      "name": "Nāga Pañcamī (Mārgaśīrṣa)",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1550,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "1999-12-12T12:14:48+03:30",
          "utc": "1999-12-12T08:44:48Z",
          "ms": 944988287857.9584
        },
        "end": {
          "local": "1999-12-13T14:11:31+03:30",
          "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": "1999-12-12T12:14:48+03:30",
          "utc": "1999-12-12T08:44:48Z",
          "ms": 944988287857.9584
        },
        "end": {
          "local": "1999-12-13T14:11:31+03:30",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-12",
          "window": {
            "start": {
              "local": "1999-12-12T11:00:58+03:30",
              "utc": "1999-12-12T07:30:58Z",
              "ms": 944983858268.4934
            },
            "end": {
              "local": "1999-12-12T11:48:58+03:30",
              "utc": "1999-12-12T08:18:58Z",
              "ms": 944986738268.4934
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-12-13",
          "window": {
            "start": {
              "local": "1999-12-13T11:01:27+03:30",
              "utc": "1999-12-13T07:31:27Z",
              "ms": 945070286663.8585
            },
            "end": {
              "local": "1999-12-13T11:49:27+03:30",
              "utc": "1999-12-13T08:19:27Z",
              "ms": 945073166663.8585
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 12:15 on Sun 12 Dec to 14:12 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: 11:01–11:49 on the 12th, 11:01–11:49 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 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 1550 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī (Mārgaśīrṣa), Mashhad, 1999: Monday 13 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": "1999-12-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Nāga Pañcamī (Mārgaśīrṣa) 1999 falls on Monday 13 December. Pañcamī runs from 12:15 on Sun 12 Dec to 14:12 on Mon 13 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/champa-shashthi",
      "festival": "champa-shashthi",
      "name": "Campā Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8524,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-12-13T14:11:31+03:30",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        },
        "end": {
          "local": "1999-12-14T15:35:00+03:30",
          "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": "1999-12-13T14:11:31+03:30",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        },
        "end": {
          "local": "1999-12-14T15:35:00+03:30",
          "utc": "1999-12-14T12:05:00Z",
          "ms": 945173099780.6598
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-13",
          "window": {
            "start": {
              "local": "1999-12-13T11:01:27+03:30",
              "utc": "1999-12-13T07:31:27Z",
              "ms": 945070286663.8585
            },
            "end": {
              "local": "1999-12-13T11:49:27+03:30",
              "utc": "1999-12-13T08:19:27Z",
              "ms": 945073166663.8585
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-12-14",
          "window": {
            "start": {
              "local": "1999-12-14T11:01:55+03:30",
              "utc": "1999-12-14T07:31:55Z",
              "ms": 945156715378.6848
            },
            "end": {
              "local": "1999-12-14T11:49:55+03:30",
              "utc": "1999-12-14T08:19:55Z",
              "ms": 945159595378.6848
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 14:12 on Mon 13 Dec to 15:35 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: 11:01–11:49 on the 13th, 11:02–11:50 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 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 8524 s"
        },
        {
          "step": "ruling",
          "text": "Campā Ṣaṣṭhī, Mashhad, 1999: Tuesday 14 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": "1999-12-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Campā Ṣaṣṭhī 1999 falls on Tuesday 14 December. Ṣaṣṭhī runs from 14:12 on Mon 13 Dec to 15:35 on Tue 14 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/skanda-shashthi",
      "festival": "skanda-shashthi",
      "name": "Skanda Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8524,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "1999-12-13T14:11:31+03:30",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        },
        "end": {
          "local": "1999-12-14T15:35:00+03:30",
          "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": "1999-12-13T14:11:31+03:30",
          "utc": "1999-12-13T10:41:31Z",
          "ms": 945081690842.669
        },
        "end": {
          "local": "1999-12-14T15:35:00+03:30",
          "utc": "1999-12-14T12:05:00Z",
          "ms": 945173099780.6598
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-13",
          "window": {
            "start": {
              "local": "1999-12-13T11:01:27+03:30",
              "utc": "1999-12-13T07:31:27Z",
              "ms": 945070286663.8585
            },
            "end": {
              "local": "1999-12-13T11:49:27+03:30",
              "utc": "1999-12-13T08:19:27Z",
              "ms": 945073166663.8585
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-12-14",
          "window": {
            "start": {
              "local": "1999-12-14T11:01:55+03:30",
              "utc": "1999-12-14T07:31:55Z",
              "ms": 945156715378.6848
            },
            "end": {
              "local": "1999-12-14T11:49:55+03:30",
              "utc": "1999-12-14T08:19:55Z",
              "ms": 945159595378.6848
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 14:12 on Mon 13 Dec to 15:35 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: 11:01–11:49 on the 13th, 11:02–11:50 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 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 8524 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī, Mashhad, 1999: Tuesday 14 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": "1999-12-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Skanda Ṣaṣṭhī 1999 falls on Tuesday 14 December. Ṣaṣṭhī runs from 14:12 on Mon 13 Dec to 15:35 on Tue 14 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/mitra-saptami",
      "festival": "mitra-saptami",
      "name": "Mitra Saptamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13504,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "1999-12-14T15:35:00+03:30",
          "utc": "1999-12-14T12:05:00Z",
          "ms": 945173099780.6598
        },
        "end": {
          "local": "1999-12-15T16:16:52+03:30",
          "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": "1999-12-14T15:35:00+03:30",
          "utc": "1999-12-14T12:05:00Z",
          "ms": 945173099780.6598
        },
        "end": {
          "local": "1999-12-15T16:16:52+03:30",
          "utc": "1999-12-15T12:46:52Z",
          "ms": 945262011773.3474
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-14",
          "window": {
            "start": {
              "local": "1999-12-14T11:01:55+03:30",
              "utc": "1999-12-14T07:31:55Z",
              "ms": 945156715378.6848
            },
            "end": {
              "local": "1999-12-14T11:49:55+03:30",
              "utc": "1999-12-14T08:19:55Z",
              "ms": 945159595378.6848
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "1999-12-15",
          "window": {
            "start": {
              "local": "1999-12-15T11:02:24+03:30",
              "utc": "1999-12-15T07:32:24Z",
              "ms": 945243144378.8723
            },
            "end": {
              "local": "1999-12-15T11:50:24+03:30",
              "utc": "1999-12-15T08:20:24Z",
              "ms": 945246024378.8723
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 15:35 on Tue 14 Dec to 16:17 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: 11:02–11:50 on the 14th, 11:02–11:50 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 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 13504 s"
        },
        {
          "step": "ruling",
          "text": "Mitra Saptamī, Mashhad, 1999: Wednesday 15 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": "1999-12-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mitra Saptamī 1999 falls on Wednesday 15 December. Saptamī runs from 15:35 on Tue 14 Dec to 16:17 on Wed 15 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/ekadashi?on=1999-12-19",
      "festival": "ekadashi",
      "name": "Mokṣadā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16141,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "1999-12-18T13:33:18+03:30",
          "utc": "1999-12-18T10:03:18Z",
          "ms": 945511397659.9443
        },
        "end": {
          "local": "1999-12-19T11:07:00+03:30",
          "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": "1999-12-18T13:33:18+03:30",
          "utc": "1999-12-18T10:03:18Z",
          "ms": 945511397659.9443
        },
        "end": {
          "local": "1999-12-19T11:07:00+03:30",
          "utc": "1999-12-19T07:37:00Z",
          "ms": 945589019757.2195
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "1999-12-18",
          "window": {
            "start": {
              "local": "1999-12-18T06:37:23+03:30",
              "utc": "1999-12-18T03:07:23Z",
              "ms": 945486443062.3165
            },
            "end": {
              "local": "1999-12-18T06:37:23+03:30",
              "utc": "1999-12-18T03:07:23Z",
              "ms": 945486443062.3165
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "1999-12-19",
          "window": {
            "start": {
              "local": "1999-12-19T06:37:59+03:30",
              "utc": "1999-12-19T03:07:59Z",
              "ms": 945572878780.4557
            },
            "end": {
              "local": "1999-12-19T06:37:59+03:30",
              "utc": "1999-12-19T03:07:59Z",
              "ms": 945572878780.4557
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 13:33 on Sat 18 Dec to 11:07 on Sun 19 Dec.",
          "fact": "1999-12-18T10:03:18Z → 1999-12-19T07:37:00Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:37 on the 18th and 06:38 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 16141 s"
        },
        {
          "step": "ruling",
          "text": "Mokṣadā Ekādaśī, Mashhad, 1999: Sunday 19 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": "1999-12-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mokṣadā Ekādaśī 1999 falls on Sunday 19 December. Ekādaśī runs from 13:33 on Sat 18 Dec to 11:07 on Sun 19 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/1999/ekadashi?on=1999-12-19",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/1999/akhanda-dvadashi",
      "festival": "akhanda-dvadashi",
      "name": "Akhaṇḍa Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-19",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 157,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "1999-12-19T11:07:00+03:30",
          "utc": "1999-12-19T07:37:00Z",
          "ms": 945589019757.2195
        },
        "end": {
          "local": "1999-12-20T08:04:54+03:30",
          "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": "1999-12-19T11:07:00+03:30",
          "utc": "1999-12-19T07:37:00Z",
          "ms": 945589019757.2195
        },
        "end": {
          "local": "1999-12-20T08:04:54+03:30",
          "utc": "1999-12-20T04:34:54Z",
          "ms": 945664494255.1166
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "1999-12-19",
          "window": {
            "start": {
              "local": "1999-12-19T11:04:23+03:30",
              "utc": "1999-12-19T07:34:23Z",
              "ms": 945588862557.8977
            },
            "end": {
              "local": "1999-12-19T11:52:23+03:30",
              "utc": "1999-12-19T08:22:23Z",
              "ms": 945591742557.8977
            }
          },
          "covered_min": 45,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "1999-12-20",
          "window": {
            "start": {
              "local": "1999-12-20T11:04:52+03:30",
              "utc": "1999-12-20T07:34:52Z",
              "ms": 945675292483.4756
            },
            "end": {
              "local": "1999-12-20T11:52:52+03:30",
              "utc": "1999-12-20T08:22:52Z",
              "ms": 945678172483.4756
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 11:07 on Sun 19 Dec to 08:05 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: 11:04–11:52 on the 19th, 11:05–11:53 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 45 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 157 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Akhaṇḍa Dvādaśī, Mashhad, 1999: Sunday 19 December.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Akhaṇḍa Dvādaśī 1999 falls on Sunday 19 December. Dvādaśī runs from 11:07 on Sun 19 Dec to 08:05 on Mon 20 Dec and covers 45 of 48 minutes of madhyāhna that midday. It is 2 min 37 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/pradosha-vrata?on=1999-12-20",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29658,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "1999-12-20T08:04:54+03:30",
          "utc": "1999-12-20T04:34:54Z",
          "ms": 945664494255.1166
        },
        "end": {
          "local": "1999-12-21T04:36:16+03:30",
          "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": "1999-12-20T08:04:54+03:30",
          "utc": "1999-12-20T04:34:54Z",
          "ms": 945664494255.1166
        },
        "end": {
          "local": "1999-12-21T04:36:16+03:30",
          "utc": "1999-12-21T01:06:16Z",
          "ms": 945738376123.7671
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-12-20",
          "window": {
            "start": {
              "local": "1999-12-20T16:19:12+03:30",
              "utc": "1999-12-20T12:49:12Z",
              "ms": 945694152042.824
            },
            "end": {
              "local": "1999-12-20T18:13:51+03:30",
              "utc": "1999-12-20T14:43:51Z",
              "ms": 945701031164.9767
            }
          },
          "covered_min": 115,
          "window_min": 115,
          "qualifies": true
        },
        {
          "local_date": "1999-12-21",
          "window": {
            "start": {
              "local": "1999-12-21T16:19:40+03:30",
              "utc": "1999-12-21T12:49:40Z",
              "ms": 945780579539.2317
            },
            "end": {
              "local": "1999-12-21T18:14:19+03:30",
              "utc": "1999-12-21T14:44:19Z",
              "ms": 945787459114.4604
            }
          },
          "covered_min": 0,
          "window_min": 115,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 08:05 on Mon 20 Dec to 04:36 on Tue 21 Dec.",
          "fact": "1999-12-20T04:34:54Z → 1999-12-21T01:06:16Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:19–18:14 on the 20th, 16:20–18:14 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 115 of 115 minutes on the 20th and 0 of 115 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 29658 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 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 Mashhad, Śukla Pradoṣa Vrata 1999 falls on Monday 20 December. Trayodaśī runs from 08:05 on Mon 20 Dec to 04:36 on Tue 21 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/dattatreyotpatti",
      "festival": "dattatreyotpatti",
      "name": "Dattātreyotpatti",
      "everyday": "Datta Jayanti",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9990,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "1999-12-22T00:51:26+03:30",
          "utc": "1999-12-21T21:21:26Z",
          "ms": 945811286495.2871
        },
        "end": {
          "local": "1999-12-22T21:01:18+03:30",
          "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": "1999-12-22T00:51:26+03:30",
          "utc": "1999-12-21T21:21:26Z",
          "ms": 945811286495.2871
        },
        "end": {
          "local": "1999-12-22T21:01:18+03:30",
          "utc": "1999-12-22T17:31:18Z",
          "ms": 945883878038.1244
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "1999-12-21",
          "window": {
            "start": {
              "local": "1999-12-21T16:19:40+03:30",
              "utc": "1999-12-21T12:49:40Z",
              "ms": 945780579539.2317
            },
            "end": {
              "local": "1999-12-21T18:14:19+03:30",
              "utc": "1999-12-21T14:44:19Z",
              "ms": 945787459114.4604
            }
          },
          "covered_min": 0,
          "window_min": 115,
          "qualifies": false
        },
        {
          "local_date": "1999-12-22",
          "window": {
            "start": {
              "local": "1999-12-22T16:20:09+03:30",
              "utc": "1999-12-22T12:50:09Z",
              "ms": 945867008797.3242
            },
            "end": {
              "local": "1999-12-22T18:14:48+03:30",
              "utc": "1999-12-22T14:44:48Z",
              "ms": 945873888368.1152
            }
          },
          "covered_min": 115,
          "window_min": 115,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 00:51 on Wed 22 Dec to 21:01 on Wed 22 Dec.",
          "fact": "1999-12-21T21:21:26Z → 1999-12-22T17:31:18Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:20–18:14 on the 21st, 16:20–18:15 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 0 of 115 minutes on the 21st and 115 of 115 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 9990 s"
        },
        {
          "step": "ruling",
          "text": "Dattātreyotpatti, Mashhad, 1999: Wednesday 22 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": "1999-12-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "1999-12-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Dattātreyotpatti (Datta Jayanti) 1999 falls on Wednesday 22 December. Pūrṇimā runs from 00:51 on Wed 22 Dec to 21:01 on Wed 22 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/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": "/mashhad/festivals/1999/sankashta-chaturthi?on=1999-12-25",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 1999,
      "local_date": "1999-12-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31677,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "1999-12-25T10:46:23+03:30",
          "utc": "1999-12-25T07:16:23Z",
          "ms": 946106182799.5834
        },
        "end": {
          "local": "1999-12-26T08:19:02+03:30",
          "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": "1999-12-25T10:46:23+03:30",
          "utc": "1999-12-25T07:16:23Z",
          "ms": 946106182799.5834
        },
        "end": {
          "local": "1999-12-26T08:19:02+03:30",
          "utc": "1999-12-26T04:49:02Z",
          "ms": 946183741763.595
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "1999-12-25",
          "window": {
            "start": {
              "local": "1999-12-25T19:34:20+03:30",
              "utc": "1999-12-25T16:04:20Z",
              "ms": 946137860065.8325
            },
            "end": {
              "local": "1999-12-25T19:34:20+03:30",
              "utc": "1999-12-25T16:04:20Z",
              "ms": 946137860065.8325
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "1999-12-26",
          "window": {
            "start": {
              "local": "1999-12-26T20:41:46+03:30",
              "utc": "1999-12-26T17:11:46Z",
              "ms": 946228305796.2516
            },
            "end": {
              "local": "1999-12-26T20:41:46+03:30",
              "utc": "1999-12-26T17:11:46Z",
              "ms": 946228305796.2516
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 10:46 on Sat 25 Dec to 08:19 on Sun 26 Dec.",
          "fact": "1999-12-25T07:16:23Z → 1999-12-26T04:49:02Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:34 on the 25th and 20:42 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 31677 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 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 Mashhad, Saṅkaṣṭa Caturthī 1999 falls on Saturday 25 December. Caturthī runs from 10:46 on Sat 25 Dec to 08:19 on Sun 26 Dec and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/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"
  }
}