{
  "id": "/mashhad/festivals/2010",
  "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": 2010,
  "tradition": "smarta",
  "method": "pac-rp@2026.1",
  "ruleset": "2026.3-draft",
  "rulings": [
    {
      "id": "/mashhad/festivals/2010/sankashta-chaturthi?on=2010-01-03",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26849,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-01-03T12:20:29+03:30",
          "utc": "2010-01-03T08:50:29Z",
          "ms": 1262508629179.3657
        },
        "end": {
          "local": "2010-01-04T09:13:56+03:30",
          "utc": "2010-01-04T05:43:56Z",
          "ms": 1262583835614.252
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-03T12:20:29+03:30",
          "utc": "2010-01-03T08:50:29Z",
          "ms": 1262508629179.3657
        },
        "end": {
          "local": "2010-01-04T09:13:56+03:30",
          "utc": "2010-01-04T05:43:56Z",
          "ms": 1262583835614.252
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-01-03",
          "window": {
            "start": {
              "local": "2010-01-03T19:47:58+03:30",
              "utc": "2010-01-03T16:17:58Z",
              "ms": 1262535477822.4983
            },
            "end": {
              "local": "2010-01-03T19:47:58+03:30",
              "utc": "2010-01-03T16:17:58Z",
              "ms": 1262535477822.4983
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-01-04",
          "window": {
            "start": {
              "local": "2010-01-04T20:59:46+03:30",
              "utc": "2010-01-04T17:29:46Z",
              "ms": 1262626186005.6802
            },
            "end": {
              "local": "2010-01-04T20:59:46+03:30",
              "utc": "2010-01-04T17:29:46Z",
              "ms": 1262626186005.6802
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 12:20 on Sun 3 Jan to 09:14 on Mon 4 Jan.",
          "fact": "2010-01-03T08:50:29Z → 2010-01-04T05:43:56Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:48 on the 3rd and 21:00 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 26849 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Sunday 3 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": "2010-01-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Sunday 3 January. Caturthī runs from 12:20 on Sun 3 Jan to 09:14 on Mon 4 Jan and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-01-03",
      "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/2010/ekadashi?on=2010-01-10",
      "festival": "ekadashi",
      "name": "Ṣaṭtilā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14558,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-01-10T01:46:08+03:30",
          "utc": "2010-01-09T22:16:08Z",
          "ms": 1263075367790.994
        },
        "end": {
          "local": "2010-01-11T02:40:47+03:30",
          "utc": "2010-01-10T23:10:47Z",
          "ms": 1263165047350.0078
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-10T01:46:08+03:30",
          "utc": "2010-01-09T22:16:08Z",
          "ms": 1263075367790.994
        },
        "end": {
          "local": "2010-01-11T02:40:47+03:30",
          "utc": "2010-01-10T23:10:47Z",
          "ms": 1263165047350.0078
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-01-10",
          "window": {
            "start": {
              "local": "2010-01-10T06:43:33+03:30",
              "utc": "2010-01-10T03:13:33Z",
              "ms": 1263093213347.068
            },
            "end": {
              "local": "2010-01-10T06:43:33+03:30",
              "utc": "2010-01-10T03:13:33Z",
              "ms": 1263093213347.068
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-01-11",
          "window": {
            "start": {
              "local": "2010-01-11T06:43:26+03:30",
              "utc": "2010-01-11T03:13:26Z",
              "ms": 1263179605522.4402
            },
            "end": {
              "local": "2010-01-11T06:43:26+03:30",
              "utc": "2010-01-11T03:13:26Z",
              "ms": 1263179605522.4402
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 01:46 on Sun 10 Jan to 02:41 on Mon 11 Jan.",
          "fact": "2010-01-09T22:16:08Z → 2010-01-10T23:10:47Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:44 on the 10th and 06:43 on the 11th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 10th and is not on the 11th.",
          "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 14558 s"
        },
        {
          "step": "ruling",
          "text": "Ṣaṭtilā Ekādaśī, Mashhad, 2010: Sunday 10 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": "2010-01-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ṣaṭtilā Ekādaśī 2010 falls on Sunday 10 January. Ekādaśī runs from 01:46 on Sun 10 Jan to 02:41 on Mon 11 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-01-10",
      "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/2010/pradosha-vrata?on=2010-01-12",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34678,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-01-12T04:06:36+03:30",
          "utc": "2010-01-12T00:36:36Z",
          "ms": 1263256595793.0981
        },
        "end": {
          "local": "2010-01-13T05:58:45+03:30",
          "utc": "2010-01-13T02:28:45Z",
          "ms": 1263349724720.7092
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-12T04:06:36+03:30",
          "utc": "2010-01-12T00:36:36Z",
          "ms": 1263256595793.0981
        },
        "end": {
          "local": "2010-01-13T05:58:45+03:30",
          "utc": "2010-01-13T02:28:45Z",
          "ms": 1263349724720.7092
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-01-11",
          "window": {
            "start": {
              "local": "2010-01-11T16:35:37+03:30",
              "utc": "2010-01-11T13:05:37Z",
              "ms": 1263215136767.7346
            },
            "end": {
              "local": "2010-01-11T18:28:38+03:30",
              "utc": "2010-01-11T14:58:38Z",
              "ms": 1263221917961.6995
            }
          },
          "covered_min": 0,
          "window_min": 113,
          "qualifies": false
        },
        {
          "local_date": "2010-01-12",
          "window": {
            "start": {
              "local": "2010-01-12T16:36:34+03:30",
              "utc": "2010-01-12T13:06:34Z",
              "ms": 1263301594134.2075
            },
            "end": {
              "local": "2010-01-12T18:29:26+03:30",
              "utc": "2010-01-12T14:59:26Z",
              "ms": 1263308366109.624
            }
          },
          "covered_min": 113,
          "window_min": 113,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 04:07 on Tue 12 Jan to 05:59 on Wed 13 Jan.",
          "fact": "2010-01-12T00:36:36Z → 2010-01-13T02:28:45Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:36–18:29 on the 11th, 16:37–18:29 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 0 of 113 minutes on the 11th and 113 of 113 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 34678 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Tuesday 12 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": "2010-01-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Tuesday 12 January. Trayodaśī runs from 04:07 on Tue 12 Jan to 05:59 on Wed 13 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-01-12",
      "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/2010/bhogi",
      "festival": "bhogi",
      "name": "Bhogi",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21621,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        },
        "end": {
          "local": "2010-02-12T23:37:57+03:30",
          "utc": "2010-02-12T20:07:57Z",
          "ms": 1266005277123.466
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        },
        "end": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "2010-01-14",
          "window": {
            "start": {
              "local": "2010-01-13T16:37:32+03:30",
              "utc": "2010-01-13T13:07:32Z",
              "ms": 1263388052262.24
            },
            "end": {
              "local": "2010-01-14T16:38:31+03:30",
              "utc": "2010-01-14T13:08:31Z",
              "ms": 1263474511098.2683
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "2010-01-15",
          "window": {
            "start": {
              "local": "2010-01-14T16:38:31+03:30",
              "utc": "2010-01-14T13:08:31Z",
              "ms": 1263474511098.2683
            },
            "end": {
              "local": "2010-01-15T16:39:31+03:30",
              "utc": "2010-01-15T13:09:31Z",
              "ms": 1263560970589.256
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "follows": {
        "festival": "pongal",
        "name": "Pongal",
        "local_date": "2010-01-14",
        "days": -1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 10:38 on Thu 14 Jan.",
          "fact": "2010-01-14T07:08:10Z · 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 16:39, and the day of the 15th ends at 16:40.",
          "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 21621 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, 2010: 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": "2010-01-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-13",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2010-01-13",
          "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": "2010-01-13",
          "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 2010 falls on Wednesday 13 January. It is kept the day before Pongal, which falls on Thursday 14 January. The Sun enters Makara at 10:38 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/2010/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/2010/shivaratri?on=2010-01-13",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21296,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-01-13T05:58:45+03:30",
          "utc": "2010-01-13T02:28:45Z",
          "ms": 1263349724720.7092
        },
        "end": {
          "local": "2010-01-14T08:12:06+03:30",
          "utc": "2010-01-14T04:42:06Z",
          "ms": 1263444126332.545
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-13T05:58:45+03:30",
          "utc": "2010-01-13T02:28:45Z",
          "ms": 1263349724720.7092
        },
        "end": {
          "local": "2010-01-14T08:12:06+03:30",
          "utc": "2010-01-14T04:42:06Z",
          "ms": 1263444126332.545
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-01-12",
          "window": {
            "start": {
              "local": "2010-01-12T23:15:49+03:30",
              "utc": "2010-01-12T19:45:49Z",
              "ms": 1263325549042.0195
            },
            "end": {
              "local": "2010-01-13T00:03:49+03:30",
              "utc": "2010-01-12T20:33:49Z",
              "ms": 1263328429042.0195
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-01-13",
          "window": {
            "start": {
              "local": "2010-01-13T23:16:11+03:30",
              "utc": "2010-01-13T19:46:11Z",
              "ms": 1263411971235.6702
            },
            "end": {
              "local": "2010-01-14T00:04:11+03:30",
              "utc": "2010-01-13T20:34:11Z",
              "ms": 1263414851235.6702
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 05:59 on Wed 13 Jan to 08:12 on Thu 14 Jan.",
          "fact": "2010-01-13T02:28:45Z → 2010-01-14T04:42:06Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:16–00:04 on the 12th, 23:16–00:04 on the 13th.",
          "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 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 night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 21296 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Wednesday 13 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": "2010-01-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Wednesday 13 January. Caturdaśī runs from 05:59 on Wed 13 Jan to 08:12 on Thu 14 Jan and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-01-13",
      "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/2010/pongal",
      "festival": "pongal",
      "name": "Pongal",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21621,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        },
        "end": {
          "local": "2010-02-12T23:37:57+03:30",
          "utc": "2010-02-12T20:07:57Z",
          "ms": 1266005277123.466
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        },
        "end": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "2010-01-14",
          "window": {
            "start": {
              "local": "2010-01-13T16:37:32+03:30",
              "utc": "2010-01-13T13:07:32Z",
              "ms": 1263388052262.24
            },
            "end": {
              "local": "2010-01-14T16:38:31+03:30",
              "utc": "2010-01-14T13:08:31Z",
              "ms": 1263474511098.2683
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "2010-01-15",
          "window": {
            "start": {
              "local": "2010-01-14T16:38:31+03:30",
              "utc": "2010-01-14T13:08:31Z",
              "ms": 1263474511098.2683
            },
            "end": {
              "local": "2010-01-15T16:39:31+03:30",
              "utc": "2010-01-15T13:09:31Z",
              "ms": 1263560970589.256
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 10:38 on Thu 14 Jan.",
          "fact": "2010-01-14T07:08:10Z · 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 16:39, and the day of the 15th ends at 16:40.",
          "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 21621 s"
        },
        {
          "step": "ruling",
          "text": "Pongal, Mashhad, 2010: 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": "2010-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2010-01-14",
          "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": "2010-01-14",
          "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 2010 falls on Thursday 14 January. The Sun enters Makara at 10:38 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/2010/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/2010/makara-sankranti",
      "festival": "makara-sankranti",
      "name": "Makara Saṅkrānti",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38290,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        },
        "end": {
          "local": "2010-02-12T23:37:57+03:30",
          "utc": "2010-02-12T20:07:57Z",
          "ms": 1266005277123.466
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        },
        "end": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        }
      },
      "kaala": "civil-day",
      "days": [
        {
          "local_date": "2010-01-13",
          "window": {
            "start": {
              "local": "2010-01-13T00:00:00+03:30",
              "utc": "2010-01-12T20:30:00Z",
              "ms": 1263328200000
            },
            "end": {
              "local": "2010-01-14T00:00:00+03:30",
              "utc": "2010-01-13T20:30:00Z",
              "ms": 1263414600000
            }
          },
          "covered_min": 0,
          "window_min": 1440,
          "qualifies": false
        },
        {
          "local_date": "2010-01-14",
          "window": {
            "start": {
              "local": "2010-01-14T00:00:00+03:30",
              "utc": "2010-01-13T20:30:00Z",
              "ms": 1263414600000
            },
            "end": {
              "local": "2010-01-15T00:00:00+03:30",
              "utc": "2010-01-14T20:30:00Z",
              "ms": 1263501000000
            }
          },
          "covered_min": 1,
          "window_min": 1440,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 10:38 on Thu 14 Jan.",
          "fact": "2010-01-14T07:08:10Z · 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 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from midnight → only-day · margin 38290 s"
        },
        {
          "step": "ruling",
          "text": "Makara Saṅkrānti, Mashhad, 2010: 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": "2010-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-14",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "sunrise-day",
          "local_date": "2010-01-14",
          "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": "2010-01-14",
          "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 2010 falls on Thursday 14 January. The Sun enters Makara at 10:38 on Thu 14 Jan, and the rule counts the day from midnight.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/yama-tarpana",
      "festival": "yama-tarpana",
      "name": "Yama Tarpaṇa",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-14",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 2659,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-01-13T05:58:45+03:30",
          "utc": "2010-01-13T02:28:45Z",
          "ms": 1263349724720.7092
        },
        "end": {
          "local": "2010-01-14T08:12:06+03:30",
          "utc": "2010-01-14T04:42:06Z",
          "ms": 1263444126332.545
        },
        "month": {
          "amanta": 9,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Pauṣa",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-13T05:58:45+03:30",
          "utc": "2010-01-13T02:28:45Z",
          "ms": 1263349724720.7092
        },
        "end": {
          "local": "2010-01-14T08:12:06+03:30",
          "utc": "2010-01-14T04:42:06Z",
          "ms": 1263444126332.545
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "2010-01-13",
          "window": {
            "start": {
              "local": "2010-01-13T04:50:12+03:30",
              "utc": "2010-01-13T01:20:12Z",
              "ms": 1263345611974.415
            },
            "end": {
              "local": "2010-01-13T06:43:04+03:30",
              "utc": "2010-01-13T03:13:04Z",
              "ms": 1263352383949.8315
            }
          },
          "covered_min": 44,
          "window_min": 113,
          "qualifies": true
        },
        {
          "local_date": "2010-01-14",
          "window": {
            "start": {
              "local": "2010-01-14T04:50:08+03:30",
              "utc": "2010-01-14T01:20:08Z",
              "ms": 1263432007816.1855
            },
            "end": {
              "local": "2010-01-14T06:42:50+03:30",
              "utc": "2010-01-14T03:12:50Z",
              "ms": 1263438770209.1003
            }
          },
          "covered_min": 113,
          "window_min": 113,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 05:59 on Wed 13 Jan to 08:12 on Thu 14 Jan.",
          "fact": "2010-01-13T02:28:45Z → 2010-01-14T04:42:06Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:50–06:43 on the 13th, 04:50–06:43 on the 14th.",
          "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 44 of 113 minutes on the 13th and 113 of 113 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Both dawns qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 2659 s"
        },
        {
          "step": "ruling",
          "text": "Yama Tarpaṇa, Mashhad, 2010: Thursday 14 January.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "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": "2010-01-14",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-14",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Yama Tarpaṇa 2010 falls on Thursday 14 January. Caturdaśī runs from 05:59 on Wed 13 Jan to 08:12 on Thu 14 Jan and covers all of aruṇodaya that dawn. It also reaches the previous dawn for 44 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/2010/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/2010/mattu-pongal",
      "festival": "mattu-pongal",
      "name": "Mattu Pongal",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21621,
      "anga": {
        "type": "sankranti",
        "index": 9,
        "key": "makara",
        "name": "Makara",
        "start": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        },
        "end": {
          "local": "2010-02-12T23:37:57+03:30",
          "utc": "2010-02-12T20:07:57Z",
          "ms": 1266005277123.466
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        },
        "end": {
          "local": "2010-01-14T10:38:10+03:30",
          "utc": "2010-01-14T07:08:10Z",
          "ms": 1263452889615.4846
        }
      },
      "kaala": "sunset-day",
      "days": [
        {
          "local_date": "2010-01-14",
          "window": {
            "start": {
              "local": "2010-01-13T16:37:32+03:30",
              "utc": "2010-01-13T13:07:32Z",
              "ms": 1263388052262.24
            },
            "end": {
              "local": "2010-01-14T16:38:31+03:30",
              "utc": "2010-01-14T13:08:31Z",
              "ms": 1263474511098.2683
            }
          },
          "covered_min": 1,
          "window_min": 1441,
          "qualifies": true
        },
        {
          "local_date": "2010-01-15",
          "window": {
            "start": {
              "local": "2010-01-14T16:38:31+03:30",
              "utc": "2010-01-14T13:08:31Z",
              "ms": 1263474511098.2683
            },
            "end": {
              "local": "2010-01-15T16:39:31+03:30",
              "utc": "2010-01-15T13:09:31Z",
              "ms": 1263560970589.256
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        }
      ],
      "follows": {
        "festival": "pongal",
        "name": "Pongal",
        "local_date": "2010-01-14",
        "days": 1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Makara at 10:38 on Thu 14 Jan.",
          "fact": "2010-01-14T07:08:10Z · 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 16:39, and the day of the 15th ends at 16:40.",
          "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 21621 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, 2010: 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": "2010-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-15",
          "confidence": "determinate"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2010-01-15",
          "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": "2010-01-15",
          "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 2010 falls on Friday 15 January. It is kept the day after Pongal, which falls on Thursday 14 January. The Sun enters Makara at 10:38 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/2010/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/2010/ganesha-jayanti",
      "festival": "ganesha-jayanti",
      "name": "Gaṇeśa Jayantī",
      "everyday": "Maghi Ganesh Jayanti",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23950,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-01-18T18:45:15+03:30",
          "utc": "2010-01-18T15:15:15Z",
          "ms": 1263827714517.8787
        },
        "end": {
          "local": "2010-01-19T21:14:44+03:30",
          "utc": "2010-01-19T17:44:44Z",
          "ms": 1263923083817.7295
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-18T18:45:15+03:30",
          "utc": "2010-01-18T15:15:15Z",
          "ms": 1263827714517.8787
        },
        "end": {
          "local": "2010-01-19T21:14:44+03:30",
          "utc": "2010-01-19T17:44:44Z",
          "ms": 1263923083817.7295
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-01-18",
          "window": {
            "start": {
              "local": "2010-01-18T11:18:04+03:30",
              "utc": "2010-01-18T07:48:04Z",
              "ms": 1263800884089.289
            },
            "end": {
              "local": "2010-01-18T12:06:04+03:30",
              "utc": "2010-01-18T08:36:04Z",
              "ms": 1263803764089.289
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-01-19",
          "window": {
            "start": {
              "local": "2010-01-19T11:18:23+03:30",
              "utc": "2010-01-19T07:48:23Z",
              "ms": 1263887303157.2495
            },
            "end": {
              "local": "2010-01-19T12:06:23+03:30",
              "utc": "2010-01-19T08:36:23Z",
              "ms": 1263890183157.2495
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 18:45 on Mon 18 Jan to 21:15 on Tue 19 Jan.",
          "fact": "2010-01-18T15:15:15Z → 2010-01-19T17:44:44Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:18–12:06 on the 18th, 11:18–12:06 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 23950 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Jayantī, Mashhad, 2010: Tuesday 19 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": "2010-01-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2010 falls on Tuesday 19 January. Caturthī runs from 18:45 on Mon 18 Jan to 21:15 on Tue 19 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/tila-chaturthi",
      "festival": "tila-chaturthi",
      "name": "Tila Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 653,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-01-18T18:45:15+03:30",
          "utc": "2010-01-18T15:15:15Z",
          "ms": 1263827714517.8787
        },
        "end": {
          "local": "2010-01-19T21:14:44+03:30",
          "utc": "2010-01-19T17:44:44Z",
          "ms": 1263923083817.7295
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-18T18:45:15+03:30",
          "utc": "2010-01-18T15:15:15Z",
          "ms": 1263827714517.8787
        },
        "end": {
          "local": "2010-01-19T21:14:44+03:30",
          "utc": "2010-01-19T17:44:44Z",
          "ms": 1263923083817.7295
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-01-18",
          "window": {
            "start": {
              "local": "2010-01-18T16:42:32+03:30",
              "utc": "2010-01-18T13:12:32Z",
              "ms": 1263820352473.5823
            },
            "end": {
              "local": "2010-01-18T18:34:22+03:30",
              "utc": "2010-01-18T15:04:22Z",
              "ms": 1263827061776.2195
            }
          },
          "covered_min": 0,
          "window_min": 112,
          "qualifies": false
        },
        {
          "local_date": "2010-01-19",
          "window": {
            "start": {
              "local": "2010-01-19T16:43:34+03:30",
              "utc": "2010-01-19T13:13:34Z",
              "ms": 1263906814071.1377
            },
            "end": {
              "local": "2010-01-19T18:35:12+03:30",
              "utc": "2010-01-19T15:05:12Z",
              "ms": 1263913511778.085
            }
          },
          "covered_min": 112,
          "window_min": 112,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 18:45 on Mon 18 Jan to 21:15 on Tue 19 Jan.",
          "fact": "2010-01-18T15:15:15Z → 2010-01-19T17:44:44Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:43–18:34 on the 18th, 16:44–18:35 on the 19th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during pradoṣa. It covers 0 of 112 minutes on the 18th and 112 of 112 on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 653 s"
        },
        {
          "step": "ruling",
          "text": "Tila Caturthī, Mashhad, 2010: Tuesday 19 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "tila-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-01-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-19",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Tila Caturthī 2010 falls on Tuesday 19 January. Caturthī runs from 18:45 on Mon 18 Jan to 21:15 on Tue 19 Jan and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/shri-panchami",
      "festival": "shri-panchami",
      "name": "Śrī Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32901,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2010-01-19T21:14:44+03:30",
          "utc": "2010-01-19T17:44:44Z",
          "ms": 1263923083817.7295
        },
        "end": {
          "local": "2010-01-20T23:24:09+03:30",
          "utc": "2010-01-20T19:54:09Z",
          "ms": 1264017249089.8948
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-19T21:14:44+03:30",
          "utc": "2010-01-19T17:44:44Z",
          "ms": 1263923083817.7295
        },
        "end": {
          "local": "2010-01-20T23:24:09+03:30",
          "utc": "2010-01-20T19:54:09Z",
          "ms": 1264017249089.8948
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-01-19",
          "window": {
            "start": {
              "local": "2010-01-19T11:18:23+03:30",
              "utc": "2010-01-19T07:48:23Z",
              "ms": 1263887303157.2495
            },
            "end": {
              "local": "2010-01-19T12:06:23+03:30",
              "utc": "2010-01-19T08:36:23Z",
              "ms": 1263890183157.2495
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-01-20",
          "window": {
            "start": {
              "local": "2010-01-20T11:18:41+03:30",
              "utc": "2010-01-20T07:48:41Z",
              "ms": 1263973721472.9292
            },
            "end": {
              "local": "2010-01-20T12:06:41+03:30",
              "utc": "2010-01-20T08:36:41Z",
              "ms": 1263976601472.9292
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 21:15 on Tue 19 Jan to 23:24 on Wed 20 Jan.",
          "fact": "2010-01-19T17:44:44Z → 2010-01-20T19:54:09Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:18–12:06 on the 19th, 11:19–12:07 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 32901 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Pañcamī, Mashhad, 2010: Wednesday 20 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": "2010-01-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śrī Pañcamī 2010 falls on Wednesday 20 January. Pañcamī runs from 21:15 on Tue 19 Jan to 23:24 on Wed 20 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vasanta-panchami",
      "festival": "vasanta-panchami",
      "name": "Vasanta Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32901,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2010-01-19T21:14:44+03:30",
          "utc": "2010-01-19T17:44:44Z",
          "ms": 1263923083817.7295
        },
        "end": {
          "local": "2010-01-20T23:24:09+03:30",
          "utc": "2010-01-20T19:54:09Z",
          "ms": 1264017249089.8948
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-19T21:14:44+03:30",
          "utc": "2010-01-19T17:44:44Z",
          "ms": 1263923083817.7295
        },
        "end": {
          "local": "2010-01-20T23:24:09+03:30",
          "utc": "2010-01-20T19:54:09Z",
          "ms": 1264017249089.8948
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-01-19",
          "window": {
            "start": {
              "local": "2010-01-19T11:18:23+03:30",
              "utc": "2010-01-19T07:48:23Z",
              "ms": 1263887303157.2495
            },
            "end": {
              "local": "2010-01-19T12:06:23+03:30",
              "utc": "2010-01-19T08:36:23Z",
              "ms": 1263890183157.2495
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-01-20",
          "window": {
            "start": {
              "local": "2010-01-20T11:18:41+03:30",
              "utc": "2010-01-20T07:48:41Z",
              "ms": 1263973721472.9292
            },
            "end": {
              "local": "2010-01-20T12:06:41+03:30",
              "utc": "2010-01-20T08:36:41Z",
              "ms": 1263976601472.9292
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 21:15 on Tue 19 Jan to 23:24 on Wed 20 Jan.",
          "fact": "2010-01-19T17:44:44Z → 2010-01-20T19:54:09Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:18–12:06 on the 19th, 11:19–12:07 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 32901 s"
        },
        {
          "step": "ruling",
          "text": "Vasanta Pañcamī, Mashhad, 2010: Wednesday 20 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": "2010-01-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vasanta Pañcamī 2010 falls on Wednesday 20 January. Pañcamī runs from 21:15 on Tue 19 Jan to 23:24 on Wed 20 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ratha-saptami",
      "festival": "ratha-saptami",
      "name": "Ratha Saptamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9635,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2010-01-22T01:04:31+03:30",
          "utc": "2010-01-21T21:34:31Z",
          "ms": 1264109670623.1892
        },
        "end": {
          "local": "2010-01-23T02:07:43+03:30",
          "utc": "2010-01-22T22:37:43Z",
          "ms": 1264199863405.837
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-22T01:04:31+03:30",
          "utc": "2010-01-21T21:34:31Z",
          "ms": 1264109670623.1892
        },
        "end": {
          "local": "2010-01-23T02:07:43+03:30",
          "utc": "2010-01-22T22:37:43Z",
          "ms": 1264199863405.837
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "2010-01-22",
          "window": {
            "start": {
              "local": "2010-01-22T04:48:37+03:30",
              "utc": "2010-01-22T01:18:37Z",
              "ms": 1264123116867.0767
            },
            "end": {
              "local": "2010-01-22T06:39:50+03:30",
              "utc": "2010-01-22T03:09:50Z",
              "ms": 1264129790472.5369
            }
          },
          "covered_min": 111,
          "window_min": 111,
          "qualifies": true
        },
        {
          "local_date": "2010-01-23",
          "window": {
            "start": {
              "local": "2010-01-23T04:48:18+03:30",
              "utc": "2010-01-23T01:18:18Z",
              "ms": 1264209498361.8638
            },
            "end": {
              "local": "2010-01-23T06:39:19+03:30",
              "utc": "2010-01-23T03:09:19Z",
              "ms": 1264216159478.5933
            }
          },
          "covered_min": 0,
          "window_min": 111,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 01:05 on Fri 22 Jan to 02:08 on Sat 23 Jan.",
          "fact": "2010-01-21T21:34:31Z → 2010-01-22T22:37:43Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:49–06:40 on the 22nd, 04:48–06:39 on the 23rd.",
          "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 111 of 111 minutes on the 22nd and 0 of 111 on the 23rd.",
          "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 9635 s"
        },
        {
          "step": "ruling",
          "text": "Ratha Saptamī, Mashhad, 2010: Friday 22 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": "2010-01-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ratha Saptamī 2010 falls on Friday 22 January. Saptamī runs from 01:05 on Fri 22 Jan to 02:08 on Sat 23 Jan and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-01-26",
      "festival": "ekadashi",
      "name": "Jayā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21020,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-01-26T00:47:16+03:30",
          "utc": "2010-01-25T21:17:16Z",
          "ms": 1264454236052.995
        },
        "end": {
          "local": "2010-01-26T22:49:21+03:30",
          "utc": "2010-01-26T19:19:21Z",
          "ms": 1264533560984.7366
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-26T00:47:16+03:30",
          "utc": "2010-01-25T21:17:16Z",
          "ms": 1264454236052.995
        },
        "end": {
          "local": "2010-01-26T22:49:21+03:30",
          "utc": "2010-01-26T19:19:21Z",
          "ms": 1264533560984.7366
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-01-26",
          "window": {
            "start": {
              "local": "2010-01-26T06:37:36+03:30",
              "utc": "2010-01-26T03:07:36Z",
              "ms": 1264475255577.139
            },
            "end": {
              "local": "2010-01-26T06:37:36+03:30",
              "utc": "2010-01-26T03:07:36Z",
              "ms": 1264475255577.139
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-01-27",
          "window": {
            "start": {
              "local": "2010-01-27T06:36:57+03:30",
              "utc": "2010-01-27T03:06:57Z",
              "ms": 1264561617384.1096
            },
            "end": {
              "local": "2010-01-27T06:36:57+03:30",
              "utc": "2010-01-27T03:06:57Z",
              "ms": 1264561617384.1096
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 00:47 on Tue 26 Jan to 22:49 on Tue 26 Jan.",
          "fact": "2010-01-25T21:17:16Z → 2010-01-26T19:19:21Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:38 on the 26th and 06:37 on the 27th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 21020 s"
        },
        {
          "step": "ruling",
          "text": "Jayā Ekādaśī, Mashhad, 2010: Tuesday 26 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": "2010-01-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Jayā Ekādaśī 2010 falls on Tuesday 26 January. Ekādaśī runs from 00:47 on Tue 26 Jan to 22:49 on Tue 26 Jan and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-01-26",
      "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/2010/bhishma-dvadashi",
      "festival": "bhishma-dvadashi",
      "name": "Bhīṣma Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29040,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2010-01-26T22:49:21+03:30",
          "utc": "2010-01-26T19:19:21Z",
          "ms": 1264533560984.7366
        },
        "end": {
          "local": "2010-01-27T20:12:28+03:30",
          "utc": "2010-01-27T16:42:28Z",
          "ms": 1264610547707.068
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-26T22:49:21+03:30",
          "utc": "2010-01-26T19:19:21Z",
          "ms": 1264533560984.7366
        },
        "end": {
          "local": "2010-01-27T20:12:28+03:30",
          "utc": "2010-01-27T16:42:28Z",
          "ms": 1264610547707.068
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-01-26",
          "window": {
            "start": {
              "local": "2010-01-26T11:20:15+03:30",
              "utc": "2010-01-26T07:50:15Z",
              "ms": 1264492214827.394
            },
            "end": {
              "local": "2010-01-26T12:08:15+03:30",
              "utc": "2010-01-26T08:38:15Z",
              "ms": 1264495094827.394
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-01-27",
          "window": {
            "start": {
              "local": "2010-01-27T11:20:28+03:30",
              "utc": "2010-01-27T07:50:28Z",
              "ms": 1264578627543.1174
            },
            "end": {
              "local": "2010-01-27T12:08:28+03:30",
              "utc": "2010-01-27T08:38:28Z",
              "ms": 1264581507543.1174
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 22:49 on Tue 26 Jan to 20:12 on Wed 27 Jan.",
          "fact": "2010-01-26T19:19:21Z → 2010-01-27T16:42:28Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:20–12:08 on the 26th, 11:20–12:08 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 0 of 48 minutes on the 26th and 48 of 48 on the 27th.",
          "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 29040 s"
        },
        {
          "step": "ruling",
          "text": "Bhīṣma Dvādaśī, Mashhad, 2010: Wednesday 27 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": "2010-01-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Bhīṣma Dvādaśī 2010 falls on Wednesday 27 January. Dvādaśī runs from 22:49 on Tue 26 Jan to 20:12 on Wed 27 Jan and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/pradosha-vrata?on=2010-01-28",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 652,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-01-27T20:12:28+03:30",
          "utc": "2010-01-27T16:42:28Z",
          "ms": 1264610547707.068
        },
        "end": {
          "local": "2010-01-28T17:03:53+03:30",
          "utc": "2010-01-28T13:33:53Z",
          "ms": 1264685633312.7666
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-27T20:12:28+03:30",
          "utc": "2010-01-27T16:42:28Z",
          "ms": 1264610547707.068
        },
        "end": {
          "local": "2010-01-28T17:03:53+03:30",
          "utc": "2010-01-28T13:33:53Z",
          "ms": 1264685633312.7666
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-01-27",
          "window": {
            "start": {
              "local": "2010-01-27T16:51:58+03:30",
              "utc": "2010-01-27T13:21:58Z",
              "ms": 1264598517702.1252
            },
            "end": {
              "local": "2010-01-27T18:41:52+03:30",
              "utc": "2010-01-27T15:11:52Z",
              "ms": 1264605112335.965
            }
          },
          "covered_min": 0,
          "window_min": 110,
          "qualifies": false
        },
        {
          "local_date": "2010-01-28",
          "window": {
            "start": {
              "local": "2010-01-28T16:53:01+03:30",
              "utc": "2010-01-28T13:23:01Z",
              "ms": 1264684981411.1255
            },
            "end": {
              "local": "2010-01-28T18:42:42+03:30",
              "utc": "2010-01-28T15:12:42Z",
              "ms": 1264691561999.1533
            }
          },
          "covered_min": 11,
          "window_min": 110,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 20:12 on Wed 27 Jan to 17:04 on Thu 28 Jan.",
          "fact": "2010-01-27T16:42:28Z → 2010-01-28T13:33:53Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:52–18:42 on the 27th, 16:53–18:43 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 0 of 110 minutes on the 27th and 11 of 110 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 652 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Thursday 28 January.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-01-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Thursday 28 January. Trayodaśī runs from 20:12 on Wed 27 Jan to 17:04 on Thu 28 Jan and covers 11 of 110 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-01-28",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/2010/maghi-purnima",
      "festival": "maghi-purnima",
      "name": "Māghī Pūrṇimā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-01-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5011,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-01-29T13:32:22+03:30",
          "utc": "2010-01-29T10:02:22Z",
          "ms": 1264759341766.654
        },
        "end": {
          "local": "2010-01-30T09:47:35+03:30",
          "utc": "2010-01-30T06:17:35Z",
          "ms": 1264832254905.018
        },
        "month": {
          "amanta": 10,
          "purnimanta": 10,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Māgha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-01-29T13:32:22+03:30",
          "utc": "2010-01-29T10:02:22Z",
          "ms": 1264759341766.654
        },
        "end": {
          "local": "2010-01-30T09:47:35+03:30",
          "utc": "2010-01-30T06:17:35Z",
          "ms": 1264832254905.018
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-01-29",
          "window": {
            "start": {
              "local": "2010-01-29T11:20:50+03:30",
              "utc": "2010-01-29T07:50:50Z",
              "ms": 1264751450498.5945
            },
            "end": {
              "local": "2010-01-29T12:08:50+03:30",
              "utc": "2010-01-29T08:38:50Z",
              "ms": 1264754330498.5945
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-01-30",
          "window": {
            "start": {
              "local": "2010-01-30T11:21:01+03:30",
              "utc": "2010-01-30T07:51:01Z",
              "ms": 1264837860740.2783
            },
            "end": {
              "local": "2010-01-30T12:09:01+03:30",
              "utc": "2010-01-30T08:39:01Z",
              "ms": 1264840740740.2783
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 13:32 on Fri 29 Jan to 09:48 on Sat 30 Jan.",
          "fact": "2010-01-29T10:02:22Z → 2010-01-30T06:17:35Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:21–12:09 on the 29th, 11:21–12:09 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 0 of 48 on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: paraviddha → second-day · margin 5011 s"
        },
        {
          "step": "ruling",
          "text": "Māghī Pūrṇimā, Mashhad, 2010: Saturday 30 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": "2010-01-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-01-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Māghī Pūrṇimā 2010 falls on Saturday 30 January. Pūrṇimā runs from 13:32 on Fri 29 Jan to 09:48 on Sat 30 Jan, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-02-01",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-02-01",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 3413,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-02-01T22:57:10+03:30",
          "utc": "2010-02-01T19:27:10Z",
          "ms": 1265052430222.252
        },
        "end": {
          "local": "2010-02-02T20:02:31+03:30",
          "utc": "2010-02-02T16:32:31Z",
          "ms": 1265128351192.955
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-02-01T22:57:10+03:30",
          "utc": "2010-02-01T19:27:10Z",
          "ms": 1265052430222.252
        },
        "end": {
          "local": "2010-02-02T20:02:31+03:30",
          "utc": "2010-02-02T16:32:31Z",
          "ms": 1265128351192.955
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-02-01",
          "window": {
            "start": {
              "local": "2010-02-01T19:48:29+03:30",
              "utc": "2010-02-01T16:18:29Z",
              "ms": 1265041109150.5916
            },
            "end": {
              "local": "2010-02-01T19:48:29+03:30",
              "utc": "2010-02-01T16:18:29Z",
              "ms": 1265041109150.5916
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-02-02",
          "window": {
            "start": {
              "local": "2010-02-02T20:59:24+03:30",
              "utc": "2010-02-02T17:29:24Z",
              "ms": 1265131763991.7266
            },
            "end": {
              "local": "2010-02-02T20:59:24+03:30",
              "utc": "2010-02-02T17:29:24Z",
              "ms": 1265131763991.7266
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 22:57 on Mon 1 Feb to 20:03 on Tue 2 Feb.",
          "fact": "2010-02-01T19:27:10Z → 2010-02-02T16:32:31Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:48 on the 1st and 20:59 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 not on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Neither moonrise qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 3413 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Monday 1 February.",
          "fact": "confidence: boundary (absent-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-02-01",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-02-01",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Monday 1 February. Caturthī runs from 22:57 on Mon 1 Feb to 20:03 on Tue 2 Feb, and is current at moonrise on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-02-01",
      "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/2010/ekadashi?on=2010-02-09",
      "festival": "ekadashi",
      "name": "Vijayā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-02-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38068,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-02-08T17:46:51+03:30",
          "utc": "2010-02-08T14:16:51Z",
          "ms": 1265638610902.6663
        },
        "end": {
          "local": "2010-02-09T19:50:46+03:30",
          "utc": "2010-02-09T16:20:46Z",
          "ms": 1265732446448.2964
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-02-08T17:46:51+03:30",
          "utc": "2010-02-08T14:16:51Z",
          "ms": 1265638610902.6663
        },
        "end": {
          "local": "2010-02-09T19:50:46+03:30",
          "utc": "2010-02-09T16:20:46Z",
          "ms": 1265732446448.2964
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-02-09",
          "window": {
            "start": {
              "local": "2010-02-09T06:26:14+03:30",
              "utc": "2010-02-09T02:56:14Z",
              "ms": 1265684173985.8384
            },
            "end": {
              "local": "2010-02-09T06:26:14+03:30",
              "utc": "2010-02-09T02:56:14Z",
              "ms": 1265684173985.8384
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-02-10",
          "window": {
            "start": {
              "local": "2010-02-10T06:25:14+03:30",
              "utc": "2010-02-10T02:55:14Z",
              "ms": 1265770514275.0103
            },
            "end": {
              "local": "2010-02-10T06:25:14+03:30",
              "utc": "2010-02-10T02:55:14Z",
              "ms": 1265770514275.0103
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 17:47 on Mon 8 Feb to 19:51 on Tue 9 Feb.",
          "fact": "2010-02-08T14:16:51Z → 2010-02-09T16:20:46Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:26 on the 9th and 06:25 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 38068 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Ekādaśī, Mashhad, 2010: Tuesday 9 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": "2010-02-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-02-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vijayā Ekādaśī 2010 falls on Tuesday 9 February. Ekādaśī runs from 17:47 on Mon 8 Feb to 19:51 on Tue 9 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-02-09",
      "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/2010/pradosha-vrata?on=2010-02-11",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-02-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12270,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-02-10T22:17:36+03:30",
          "utc": "2010-02-10T18:47:36Z",
          "ms": 1265827656345.7495
        },
        "end": {
          "local": "2010-02-12T00:57:21+03:30",
          "utc": "2010-02-11T21:27:21Z",
          "ms": 1265923641493.746
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-02-10T22:17:36+03:30",
          "utc": "2010-02-10T18:47:36Z",
          "ms": 1265827656345.7495
        },
        "end": {
          "local": "2010-02-12T00:57:21+03:30",
          "utc": "2010-02-11T21:27:21Z",
          "ms": 1265923641493.746
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-02-10",
          "window": {
            "start": {
              "local": "2010-02-10T17:06:46+03:30",
              "utc": "2010-02-10T13:36:46Z",
              "ms": 1265809006360.8022
            },
            "end": {
              "local": "2010-02-10T18:53:06+03:30",
              "utc": "2010-02-10T15:23:06Z",
              "ms": 1265815385947.0754
            }
          },
          "covered_min": 0,
          "window_min": 106,
          "qualifies": false
        },
        {
          "local_date": "2010-02-11",
          "window": {
            "start": {
              "local": "2010-02-11T17:07:49+03:30",
              "utc": "2010-02-11T13:37:49Z",
              "ms": 1265895468799.0032
            },
            "end": {
              "local": "2010-02-11T18:53:52+03:30",
              "utc": "2010-02-11T15:23:52Z",
              "ms": 1265901831754.416
            }
          },
          "covered_min": 106,
          "window_min": 106,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 22:18 on Wed 10 Feb to 00:57 on Fri 12 Feb.",
          "fact": "2010-02-10T18:47:36Z → 2010-02-11T21:27:21Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:07–18:53 on the 10th, 17:08–18:54 on the 11th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 106 minutes on the 10th and 106 of 106 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 12270 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Thursday 11 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": "2010-02-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-02-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Thursday 11 February. Trayodaśī runs from 22:18 on Wed 10 Feb to 00:57 on Fri 12 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-02-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/2010/maha-shivaratri",
      "festival": "maha-shivaratri",
      "name": "Mahāśivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-02-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2872,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-02-12T00:57:21+03:30",
          "utc": "2010-02-11T21:27:21Z",
          "ms": 1265923641493.746
        },
        "end": {
          "local": "2010-02-13T03:41:04+03:30",
          "utc": "2010-02-13T00:11:04Z",
          "ms": 1266019863851.1177
        },
        "month": {
          "amanta": 10,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Māgha",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-02-12T00:57:21+03:30",
          "utc": "2010-02-11T21:27:21Z",
          "ms": 1265923641493.746
        },
        "end": {
          "local": "2010-02-13T03:41:04+03:30",
          "utc": "2010-02-13T00:11:04Z",
          "ms": 1266019863851.1177
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-02-11",
          "window": {
            "start": {
              "local": "2010-02-11T23:21:30+03:30",
              "utc": "2010-02-11T19:51:30Z",
              "ms": 1265917889881.801
            },
            "end": {
              "local": "2010-02-12T00:09:30+03:30",
              "utc": "2010-02-11T20:39:30Z",
              "ms": 1265920769881.801
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-02-12",
          "window": {
            "start": {
              "local": "2010-02-12T23:21:29+03:30",
              "utc": "2010-02-12T19:51:29Z",
              "ms": 1266004289207.599
            },
            "end": {
              "local": "2010-02-13T00:09:29+03:30",
              "utc": "2010-02-12T20:39:29Z",
              "ms": 1266007169207.599
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 00:57 on Fri 12 Feb to 03:41 on Sat 13 Feb.",
          "fact": "2010-02-11T21:27:21Z → 2010-02-13T00:11:04Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:21–00:09 on the 11th, 23:21–00:09 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. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: disputed → only-day · margin 2872 s"
        },
        {
          "step": "ruling",
          "text": "Mahāśivarātri, Mashhad, 2010: Friday 12 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": "2010-02-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-02-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mahāśivarātri 2010 falls on Friday 12 February. Caturdaśī runs from 00:57 on Fri 12 Feb to 03:41 on Sat 13 Feb and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vinayaka-chaturthi?on=2010-02-18",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-02-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3437,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-02-17T13:07:07+03:30",
          "utc": "2010-02-17T09:37:07Z",
          "ms": 1266399426998.69
        },
        "end": {
          "local": "2010-02-18T14:42:29+03:30",
          "utc": "2010-02-18T11:12:29Z",
          "ms": 1266491548656.244
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-02-17T13:07:07+03:30",
          "utc": "2010-02-17T09:37:07Z",
          "ms": 1266399426998.69
        },
        "end": {
          "local": "2010-02-18T14:42:29+03:30",
          "utc": "2010-02-18T11:12:29Z",
          "ms": 1266491548656.244
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-02-17",
          "window": {
            "start": {
              "local": "2010-02-17T11:21:50+03:30",
              "utc": "2010-02-17T07:51:50Z",
              "ms": 1266393109552.087
            },
            "end": {
              "local": "2010-02-17T12:09:50+03:30",
              "utc": "2010-02-17T08:39:50Z",
              "ms": 1266395989552.087
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-02-18",
          "window": {
            "start": {
              "local": "2010-02-18T11:21:45+03:30",
              "utc": "2010-02-18T07:51:45Z",
              "ms": 1266479505094.2515
            },
            "end": {
              "local": "2010-02-18T12:09:45+03:30",
              "utc": "2010-02-18T08:39:45Z",
              "ms": 1266482385094.2515
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:07 on Wed 17 Feb to 14:42 on Thu 18 Feb.",
          "fact": "2010-02-17T09:37:07Z → 2010-02-18T11:12:29Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 17th, 11:22–12:10 on the 18th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 3437 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 2010: Thursday 18 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": "2010-02-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-02-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 2010 falls on Thursday 18 February. Caturthī runs from 13:07 on Wed 17 Feb to 14:42 on Thu 18 Feb and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/vinayaka-chaturthi?on=2010-02-18",
      "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/2010/ekadashi?on=2010-02-25",
      "festival": "ekadashi",
      "name": "Āmalakī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-02-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13848,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-02-24T12:31:51+03:30",
          "utc": "2010-02-24T09:01:51Z",
          "ms": 1267002111461.8315
        },
        "end": {
          "local": "2010-02-25T09:58:46+03:30",
          "utc": "2010-02-25T06:28:46Z",
          "ms": 1267079326434.4712
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-02-24T12:31:51+03:30",
          "utc": "2010-02-24T09:01:51Z",
          "ms": 1267002111461.8315
        },
        "end": {
          "local": "2010-02-25T09:58:46+03:30",
          "utc": "2010-02-25T06:28:46Z",
          "ms": 1267079326434.4712
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-02-24",
          "window": {
            "start": {
              "local": "2010-02-24T06:09:15+03:30",
              "utc": "2010-02-24T02:39:15Z",
              "ms": 1266979154959.3848
            },
            "end": {
              "local": "2010-02-24T06:09:15+03:30",
              "utc": "2010-02-24T02:39:15Z",
              "ms": 1266979154959.3848
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-02-25",
          "window": {
            "start": {
              "local": "2010-02-25T06:07:59+03:30",
              "utc": "2010-02-25T02:37:59Z",
              "ms": 1267065478859.2615
            },
            "end": {
              "local": "2010-02-25T06:07:59+03:30",
              "utc": "2010-02-25T02:37:59Z",
              "ms": 1267065478859.2615
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 12:32 on Wed 24 Feb to 09:59 on Thu 25 Feb.",
          "fact": "2010-02-24T09:01:51Z → 2010-02-25T06:28:46Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:09 on the 24th and 06:08 on the 25th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 24th and is on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 13848 s"
        },
        {
          "step": "ruling",
          "text": "Āmalakī Ekādaśī, Mashhad, 2010: Thursday 25 February.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ekadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 105",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day."
          }
        ],
        "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.",
        "kaala": "sunrise",
        "priority": "paraviddha",
        "when_absent": "tithi-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-02-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-02-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Āmalakī Ekādaśī 2010 falls on Thursday 25 February. Ekādaśī runs from 12:32 on Wed 24 Feb to 09:59 on Thu 25 Feb and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-02-25",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/2010/pradosha-vrata?on=2010-02-26",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-02-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30335,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-02-26T06:55:42+03:30",
          "utc": "2010-02-26T03:25:42Z",
          "ms": 1267154742470.98
        },
        "end": {
          "local": "2010-02-27T03:30:05+03:30",
          "utc": "2010-02-27T00:00:05Z",
          "ms": 1267228804739.567
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-02-26T06:55:42+03:30",
          "utc": "2010-02-26T03:25:42Z",
          "ms": 1267154742470.98
        },
        "end": {
          "local": "2010-02-27T03:30:05+03:30",
          "utc": "2010-02-27T00:00:05Z",
          "ms": 1267228804739.567
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-02-25",
          "window": {
            "start": {
              "local": "2010-02-25T17:21:51+03:30",
              "utc": "2010-02-25T13:51:51Z",
              "ms": 1267105911156.4878
            },
            "end": {
              "local": "2010-02-25T19:03:50+03:30",
              "utc": "2010-02-25T15:33:50Z",
              "ms": 1267112029924.9927
            }
          },
          "covered_min": 0,
          "window_min": 102,
          "qualifies": false
        },
        {
          "local_date": "2010-02-26",
          "window": {
            "start": {
              "local": "2010-02-26T17:22:49+03:30",
              "utc": "2010-02-26T13:52:49Z",
              "ms": 1267192368751.6794
            },
            "end": {
              "local": "2010-02-26T19:04:29+03:30",
              "utc": "2010-02-26T15:34:29Z",
              "ms": 1267198469474.9753
            }
          },
          "covered_min": 102,
          "window_min": 102,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 06:56 on Fri 26 Feb to 03:30 on Sat 27 Feb.",
          "fact": "2010-02-26T03:25:42Z → 2010-02-27T00:00:05Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:22–19:04 on the 25th, 17:23–19:04 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 0 of 102 minutes on the 25th and 102 of 102 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 30335 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Friday 26 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": "2010-02-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-02-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Friday 26 February. Trayodaśī runs from 06:56 on Fri 26 Feb to 03:30 on Sat 27 Feb and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-02-26",
      "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/2010/holika-dahana",
      "festival": "holika-dahana",
      "name": "Holikā Dahana",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-02-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9789,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-02-27T23:50:48+03:30",
          "utc": "2010-02-27T20:20:48Z",
          "ms": 1267302047875.0784
        },
        "end": {
          "local": "2010-02-28T20:07:52+03:30",
          "utc": "2010-02-28T16:37:52Z",
          "ms": 1267375072362.1133
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-02-27T23:50:48+03:30",
          "utc": "2010-02-27T20:20:48Z",
          "ms": 1267302047875.0784
        },
        "end": {
          "local": "2010-02-28T20:07:52+03:30",
          "utc": "2010-02-28T16:37:52Z",
          "ms": 1267375072362.1133
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2010-02-27",
          "window": {
            "start": {
              "local": "2010-02-27T15:08:06+03:30",
              "utc": "2010-02-27T11:38:06Z",
              "ms": 1267270685638.1736
            },
            "end": {
              "local": "2010-02-27T17:23:46+03:30",
              "utc": "2010-02-27T13:53:46Z",
              "ms": 1267278826003.6174
            }
          },
          "covered_min": 0,
          "window_min": 136,
          "qualifies": false
        },
        {
          "local_date": "2010-02-28",
          "window": {
            "start": {
              "local": "2010-02-28T15:08:35+03:30",
              "utc": "2010-02-28T11:38:35Z",
              "ms": 1267357115469.8672
            },
            "end": {
              "local": "2010-02-28T17:24:43+03:30",
              "utc": "2010-02-28T13:54:43Z",
              "ms": 1267365282921.8726
            }
          },
          "covered_min": 136,
          "window_min": 136,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 23:51 on Sat 27 Feb to 20:08 on Sun 28 Feb.",
          "fact": "2010-02-27T20:20:48Z → 2010-02-28T16:37:52Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:08–17:24 on the 27th, 15:09–17:25 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 0 of 136 minutes on the 27th and 136 of 136 on the 28th.",
          "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 9789 s"
        },
        {
          "step": "ruling",
          "text": "Holikā Dahana, Mashhad, 2010: Sunday 28 February.",
          "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": "2010-02-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-02-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Holikā Dahana 2010 falls on Sunday 28 February. Pūrṇimā runs from 23:51 on Sat 27 Feb to 20:08 on Sun 28 Feb and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/holi",
      "festival": "holi",
      "name": "Holī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 9789,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-02-27T23:50:48+03:30",
          "utc": "2010-02-27T20:20:48Z",
          "ms": 1267302047875.0784
        },
        "end": {
          "local": "2010-02-28T20:07:52+03:30",
          "utc": "2010-02-28T16:37:52Z",
          "ms": 1267375072362.1133
        },
        "month": {
          "amanta": 11,
          "purnimanta": 11,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Phālguna"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-02-27T23:50:48+03:30",
          "utc": "2010-02-27T20:20:48Z",
          "ms": 1267302047875.0784
        },
        "end": {
          "local": "2010-02-28T20:07:52+03:30",
          "utc": "2010-02-28T16:37:52Z",
          "ms": 1267375072362.1133
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2010-02-27",
          "window": {
            "start": {
              "local": "2010-02-27T15:08:06+03:30",
              "utc": "2010-02-27T11:38:06Z",
              "ms": 1267270685638.1736
            },
            "end": {
              "local": "2010-02-27T17:23:46+03:30",
              "utc": "2010-02-27T13:53:46Z",
              "ms": 1267278826003.6174
            }
          },
          "covered_min": 0,
          "window_min": 136,
          "qualifies": false
        },
        {
          "local_date": "2010-02-28",
          "window": {
            "start": {
              "local": "2010-02-28T15:08:35+03:30",
              "utc": "2010-02-28T11:38:35Z",
              "ms": 1267357115469.8672
            },
            "end": {
              "local": "2010-02-28T17:24:43+03:30",
              "utc": "2010-02-28T13:54:43Z",
              "ms": 1267365282921.8726
            }
          },
          "covered_min": 136,
          "window_min": 136,
          "qualifies": true
        }
      ],
      "follows": {
        "festival": "holika-dahana",
        "name": "Holikā Dahana",
        "local_date": "2010-02-28",
        "days": 1
      },
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 23:51 on Sat 27 Feb to 20:08 on Sun 28 Feb.",
          "fact": "2010-02-27T20:20:48Z → 2010-02-28T16:37:52Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:08–17:24 on the 27th, 15:09–17:25 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 0 of 136 minutes on the 27th and 136 of 136 on the 28th.",
          "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 9789 s"
        },
        {
          "step": "counted",
          "text": "Holī is kept the day after Holikā Dahana: Sunday 28 February is the day taken above.",
          "fact": "follows: holika-dahana + 1 d"
        },
        {
          "step": "ruling",
          "text": "Holī, Mashhad, 2010: Monday 1 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": "2010-03-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Holī 2010 falls on Monday 1 March. It is kept the day after Holikā Dahana, which falls on Sunday 28 February. Pūrṇimā runs from 23:51 on Sat 27 Feb to 20:08 on Sun 28 Feb and covers all of sāyāhna on the 28th.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vasantotsava",
      "festival": "vasantotsava",
      "name": "Vasantotsava",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35694,
      "anga": {
        "type": "tithi",
        "index": 15,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2010-02-28T20:07:52+03:30",
          "utc": "2010-02-28T16:37:52Z",
          "ms": 1267375072362.1133
        },
        "end": {
          "local": "2010-03-01T16:32:01+03:30",
          "utc": "2010-03-01T13:02:01Z",
          "ms": 1267448520937.1653
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-02-28T20:07:52+03:30",
          "utc": "2010-02-28T16:37:52Z",
          "ms": 1267375072362.1133
        },
        "end": {
          "local": "2010-03-01T16:32:01+03:30",
          "utc": "2010-03-01T13:02:01Z",
          "ms": 1267448520937.1653
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-03-01",
          "window": {
            "start": {
              "local": "2010-03-01T06:02:46+03:30",
              "utc": "2010-03-01T02:32:46Z",
              "ms": 1267410766410.9365
            },
            "end": {
              "local": "2010-03-01T06:02:46+03:30",
              "utc": "2010-03-01T02:32:46Z",
              "ms": 1267410766410.9365
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-03-02",
          "window": {
            "start": {
              "local": "2010-03-02T06:01:26+03:30",
              "utc": "2010-03-02T02:31:26Z",
              "ms": 1267497086457.9734
            },
            "end": {
              "local": "2010-03-02T06:01:26+03:30",
              "utc": "2010-03-02T02:31:26Z",
              "ms": 1267497086457.9734
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 20:08 on Sun 28 Feb to 16:32 on Mon 1 Mar.",
          "fact": "2010-02-28T16:37:52Z → 2010-03-01T13:02:01Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:03 on the 1st and 06:01 on the 2nd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be current at sunrise. It is on the 1st and is not on the 2nd.",
          "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 35694 s"
        },
        {
          "step": "ruling",
          "text": "Vasantotsava, Mashhad, 2010: Monday 1 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": "2010-03-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vasantotsava 2010 falls on Monday 1 March. Pratipadā runs from 20:08 on Sun 28 Feb to 16:32 on Mon 1 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-03-03",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37860,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-03-03T10:25:15+03:30",
          "utc": "2010-03-03T06:55:15Z",
          "ms": 1267599315053.32
        },
        "end": {
          "local": "2010-03-04T08:14:58+03:30",
          "utc": "2010-03-04T04:44:58Z",
          "ms": 1267677898005.3547
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-03T10:25:15+03:30",
          "utc": "2010-03-03T06:55:15Z",
          "ms": 1267599315053.32
        },
        "end": {
          "local": "2010-03-04T08:14:58+03:30",
          "utc": "2010-03-04T04:44:58Z",
          "ms": 1267677898005.3547
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-03-03",
          "window": {
            "start": {
              "local": "2010-03-03T20:56:15+03:30",
              "utc": "2010-03-03T17:26:15Z",
              "ms": 1267637174995.0793
            },
            "end": {
              "local": "2010-03-03T20:56:15+03:30",
              "utc": "2010-03-03T17:26:15Z",
              "ms": 1267637174995.0793
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-03-04",
          "window": {
            "start": {
              "local": "2010-03-04T22:05:30+03:30",
              "utc": "2010-03-04T18:35:30Z",
              "ms": 1267727730140.6821
            },
            "end": {
              "local": "2010-03-04T22:05:30+03:30",
              "utc": "2010-03-04T18:35:30Z",
              "ms": 1267727730140.6821
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 10:25 on Wed 3 Mar to 08:15 on Thu 4 Mar.",
          "fact": "2010-03-03T06:55:15Z → 2010-03-04T04:44:58Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:56 on the 3rd and 22:06 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 37860 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Wednesday 3 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": "2010-03-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Wednesday 3 March. Caturthī runs from 10:25 on Wed 3 Mar to 08:15 on Thu 4 Mar and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-03-03",
      "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/2010/shitalashtami",
      "festival": "shitalashtami",
      "name": "Śītalāṣṭamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12309,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2010-03-07T06:41:44+03:30",
          "utc": "2010-03-07T03:11:44Z",
          "ms": 1267931504055.6108
        },
        "end": {
          "local": "2010-03-08T07:53:32+03:30",
          "utc": "2010-03-08T04:23:32Z",
          "ms": 1268022212107.876
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-07T06:41:44+03:30",
          "utc": "2010-03-07T03:11:44Z",
          "ms": 1267931504055.6108
        },
        "end": {
          "local": "2010-03-08T07:53:32+03:30",
          "utc": "2010-03-08T04:23:32Z",
          "ms": 1268022212107.876
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-07",
          "window": {
            "start": {
              "local": "2010-03-07T11:18:55+03:30",
              "utc": "2010-03-07T07:48:55Z",
              "ms": 1267948135148.2485
            },
            "end": {
              "local": "2010-03-07T12:06:55+03:30",
              "utc": "2010-03-07T08:36:55Z",
              "ms": 1267951015148.2485
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-03-08",
          "window": {
            "start": {
              "local": "2010-03-08T11:18:41+03:30",
              "utc": "2010-03-08T07:48:41Z",
              "ms": 1268034520735.1538
            },
            "end": {
              "local": "2010-03-08T12:06:41+03:30",
              "utc": "2010-03-08T08:36:41Z",
              "ms": 1268037400735.1538
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 06:42 on Sun 7 Mar to 07:54 on Mon 8 Mar.",
          "fact": "2010-03-07T03:11:44Z → 2010-03-08T04:23:32Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 7th, 11:19–12:07 on the 8th.",
          "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 7th and 0 of 48 on the 8th.",
          "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 12309 s"
        },
        {
          "step": "ruling",
          "text": "Śītalāṣṭamī, Mashhad, 2010: Sunday 7 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": "2010-03-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śītalāṣṭamī 2010 falls on Sunday 7 March. Aṣṭamī runs from 06:42 on Sun 7 Mar to 07:54 on Mon 8 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-03-11",
      "festival": "ekadashi",
      "name": "Pāpamocanī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22850,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-03-10T12:11:16+03:30",
          "utc": "2010-03-10T08:41:16Z",
          "ms": 1268210475951.046
        },
        "end": {
          "local": "2010-03-11T14:51:49+03:30",
          "utc": "2010-03-11T11:21:49Z",
          "ms": 1268306508611.0908
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-10T12:11:16+03:30",
          "utc": "2010-03-10T08:41:16Z",
          "ms": 1268210475951.046
        },
        "end": {
          "local": "2010-03-11T14:51:49+03:30",
          "utc": "2010-03-11T11:21:49Z",
          "ms": 1268306508611.0908
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-03-10",
          "window": {
            "start": {
              "local": "2010-03-10T05:50:26+03:30",
              "utc": "2010-03-10T02:20:26Z",
              "ms": 1268187625588.2017
            },
            "end": {
              "local": "2010-03-10T05:50:26+03:30",
              "utc": "2010-03-10T02:20:26Z",
              "ms": 1268187625588.2017
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-03-11",
          "window": {
            "start": {
              "local": "2010-03-11T05:49:01+03:30",
              "utc": "2010-03-11T02:19:01Z",
              "ms": 1268273940806.1938
            },
            "end": {
              "local": "2010-03-11T05:49:01+03:30",
              "utc": "2010-03-11T02:19:01Z",
              "ms": 1268273940806.1938
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 12:11 on Wed 10 Mar to 14:52 on Thu 11 Mar.",
          "fact": "2010-03-10T08:41:16Z → 2010-03-11T11:21:49Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:50 on the 10th and 05:49 on the 11th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 10th and is on the 11th.",
          "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 22850 s"
        },
        {
          "step": "ruling",
          "text": "Pāpamocanī Ekādaśī, Mashhad, 2010: Thursday 11 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": "2010-03-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Pāpamocanī Ekādaśī 2010 falls on Thursday 11 March. Ekādaśī runs from 12:11 on Wed 10 Mar to 14:52 on Thu 11 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-03-11",
      "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/2010/pradosha-vrata?on=2010-03-12",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-12",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin",
        "tie-break-unstated"
      ],
      "boundary_margin_s": 6,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-03-12T17:35:38+03:30",
          "utc": "2010-03-12T14:05:38Z",
          "ms": 1268402737802.1655
        },
        "end": {
          "local": "2010-03-13T20:11:35+03:30",
          "utc": "2010-03-13T16:41:35Z",
          "ms": 1268498495220.6436
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-12T17:35:38+03:30",
          "utc": "2010-03-12T14:05:38Z",
          "ms": 1268402737802.1655
        },
        "end": {
          "local": "2010-03-13T20:11:35+03:30",
          "utc": "2010-03-13T16:41:35Z",
          "ms": 1268498495220.6436
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-03-12",
          "window": {
            "start": {
              "local": "2010-03-12T17:35:44+03:30",
              "utc": "2010-03-12T14:05:44Z",
              "ms": 1268402743698.725
            },
            "end": {
              "local": "2010-03-12T19:13:07+03:30",
              "utc": "2010-03-12T15:43:07Z",
              "ms": 1268408587222.5896
            }
          },
          "covered_min": 97,
          "window_min": 97,
          "qualifies": true
        },
        {
          "local_date": "2010-03-13",
          "window": {
            "start": {
              "local": "2010-03-13T17:36:37+03:30",
              "utc": "2010-03-13T14:06:37Z",
              "ms": 1268489197159.4036
            },
            "end": {
              "local": "2010-03-13T19:13:42+03:30",
              "utc": "2010-03-13T15:43:42Z",
              "ms": 1268495022110.1553
            }
          },
          "covered_min": 97,
          "window_min": 97,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 17:36 on Fri 12 Mar to 20:12 on Sat 13 Mar.",
          "fact": "2010-03-12T14:05:38Z → 2010-03-13T16:41:35Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:36–19:13 on the 12th, 17:37–19:14 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 97 of 97 minutes on the 12th and 97 of 97 on the 13th.",
          "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 6 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Friday 12 March.",
          "fact": "confidence: boundary (margin, tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "pradosha-vrata",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas."
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-03-13",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-12",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Friday 12 March. Trayodaśī runs from 17:36 on Fri 12 Mar to 20:12 on Sat 13 Mar and covers all of pradoṣa that evening. It also reaches the next evening for 97 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 06 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-03-12",
      "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/2010/shivaratri?on=2010-03-13",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2683,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-03-13T20:11:35+03:30",
          "utc": "2010-03-13T16:41:35Z",
          "ms": 1268498495220.6436
        },
        "end": {
          "local": "2010-03-14T22:31:41+03:30",
          "utc": "2010-03-14T19:01:41Z",
          "ms": 1268593300847.8884
        },
        "month": {
          "amanta": 11,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Phālguna",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-13T20:11:35+03:30",
          "utc": "2010-03-13T16:41:35Z",
          "ms": 1268498495220.6436
        },
        "end": {
          "local": "2010-03-14T22:31:41+03:30",
          "utc": "2010-03-14T19:01:41Z",
          "ms": 1268593300847.8884
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-03-13",
          "window": {
            "start": {
              "local": "2010-03-13T23:16:41+03:30",
              "utc": "2010-03-13T19:46:41Z",
              "ms": 1268509600724.7222
            },
            "end": {
              "local": "2010-03-14T00:04:41+03:30",
              "utc": "2010-03-13T20:34:41Z",
              "ms": 1268512480724.7222
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-03-14",
          "window": {
            "start": {
              "local": "2010-03-14T23:16:24+03:30",
              "utc": "2010-03-14T19:46:24Z",
              "ms": 1268595984282.0918
            },
            "end": {
              "local": "2010-03-15T00:04:24+03:30",
              "utc": "2010-03-14T20:34:24Z",
              "ms": 1268598864282.0918
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 20:12 on Sat 13 Mar to 22:32 on Sun 14 Mar.",
          "fact": "2010-03-13T16:41:35Z → 2010-03-14T19:01:41Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:17–00:05 on the 13th, 23:16–00:04 on the 14th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 2683 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Saturday 13 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": "2010-03-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Saturday 13 March. Caturdaśī runs from 20:12 on Sat 13 Mar to 22:32 on Sun 14 Mar and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-03-13",
      "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/2010/navaratra-arambha-caitra",
      "festival": "navaratra-arambha-caitra",
      "name": "Navarātrārambha (Caitra)",
      "everyday": "Chaitra Navratri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32927,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2010-03-16T00:31:05+03:30",
          "utc": "2010-03-15T21:01:05Z",
          "ms": 1268686865126.0544
        },
        "end": {
          "local": "2010-03-17T02:07:30+03:30",
          "utc": "2010-03-16T22:37:30Z",
          "ms": 1268779049720.0105
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-16T00:31:05+03:30",
          "utc": "2010-03-15T21:01:05Z",
          "ms": 1268686865126.0544
        },
        "end": {
          "local": "2010-03-17T02:07:30+03:30",
          "utc": "2010-03-16T22:37:30Z",
          "ms": 1268779049720.0105
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-16",
          "window": {
            "start": {
              "local": "2010-03-16T11:16:34+03:30",
              "utc": "2010-03-16T07:46:34Z",
              "ms": 1268725594021.9297
            },
            "end": {
              "local": "2010-03-16T12:04:34+03:30",
              "utc": "2010-03-16T08:34:34Z",
              "ms": 1268728474021.9297
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-03-17",
          "window": {
            "start": {
              "local": "2010-03-17T11:16:17+03:30",
              "utc": "2010-03-17T07:46:17Z",
              "ms": 1268811977026.3457
            },
            "end": {
              "local": "2010-03-17T12:04:17+03:30",
              "utc": "2010-03-17T08:34:17Z",
              "ms": 1268814857026.3457
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 00:31 on Tue 16 Mar to 02:07 on Wed 17 Mar.",
          "fact": "2010-03-15T21:01:05Z → 2010-03-16T22:37:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:17–12:05 on the 16th, 11:16–12:04 on the 17th.",
          "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 16th and 0 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 32927 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha (Caitra), Mashhad, 2010: Tuesday 16 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": "2010-03-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Navarātrārambha (Caitra) (Chaitra Navratri) 2010 falls on Tuesday 16 March. Pratipadā runs from 00:31 on Tue 16 Mar to 02:07 on Wed 17 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/gauri-tritiya",
      "festival": "gauri-tritiya",
      "name": "Gaurī Tṛtīyā",
      "everyday": "Gangaur",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25611,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2010-03-18T03:20:09+03:30",
          "utc": "2010-03-17T23:50:09Z",
          "ms": 1268869808890.5984
        },
        "end": {
          "local": "2010-03-19T04:08:51+03:30",
          "utc": "2010-03-19T00:38:51Z",
          "ms": 1268959131020.8936
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-18T03:20:09+03:30",
          "utc": "2010-03-17T23:50:09Z",
          "ms": 1268869808890.5984
        },
        "end": {
          "local": "2010-03-19T04:08:51+03:30",
          "utc": "2010-03-19T00:38:51Z",
          "ms": 1268959131020.8936
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-18",
          "window": {
            "start": {
              "local": "2010-03-18T11:16:00+03:30",
              "utc": "2010-03-18T07:46:00Z",
              "ms": 1268898359832.1099
            },
            "end": {
              "local": "2010-03-18T12:04:00+03:30",
              "utc": "2010-03-18T08:34:00Z",
              "ms": 1268901239832.1099
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-03-19",
          "window": {
            "start": {
              "local": "2010-03-19T11:15:42+03:30",
              "utc": "2010-03-19T07:45:42Z",
              "ms": 1268984742456.4976
            },
            "end": {
              "local": "2010-03-19T12:03:42+03:30",
              "utc": "2010-03-19T08:33:42Z",
              "ms": 1268987622456.4976
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 03:20 on Thu 18 Mar to 04:09 on Fri 19 Mar.",
          "fact": "2010-03-17T23:50:09Z → 2010-03-19T00:38:51Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:16–12:04 on the 18th, 11:16–12:04 on the 19th.",
          "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 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: unstated → only-day · margin 25611 s"
        },
        {
          "step": "ruling",
          "text": "Gaurī Tṛtīyā, Mashhad, 2010: Thursday 18 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": "2010-03-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Gaurī Tṛtīyā (Gangaur) 2010 falls on Thursday 18 March. Tṛtīyā runs from 03:20 on Thu 18 Mar to 04:09 on Fri 19 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/saubhagya-shayana-vrata",
      "festival": "saubhagya-shayana-vrata",
      "name": "Saubhāgya Śayana Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25611,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2010-03-18T03:20:09+03:30",
          "utc": "2010-03-17T23:50:09Z",
          "ms": 1268869808890.5984
        },
        "end": {
          "local": "2010-03-19T04:08:51+03:30",
          "utc": "2010-03-19T00:38:51Z",
          "ms": 1268959131020.8936
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-18T03:20:09+03:30",
          "utc": "2010-03-17T23:50:09Z",
          "ms": 1268869808890.5984
        },
        "end": {
          "local": "2010-03-19T04:08:51+03:30",
          "utc": "2010-03-19T00:38:51Z",
          "ms": 1268959131020.8936
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-18",
          "window": {
            "start": {
              "local": "2010-03-18T11:16:00+03:30",
              "utc": "2010-03-18T07:46:00Z",
              "ms": 1268898359832.1099
            },
            "end": {
              "local": "2010-03-18T12:04:00+03:30",
              "utc": "2010-03-18T08:34:00Z",
              "ms": 1268901239832.1099
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-03-19",
          "window": {
            "start": {
              "local": "2010-03-19T11:15:42+03:30",
              "utc": "2010-03-19T07:45:42Z",
              "ms": 1268984742456.4976
            },
            "end": {
              "local": "2010-03-19T12:03:42+03:30",
              "utc": "2010-03-19T08:33:42Z",
              "ms": 1268987622456.4976
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 03:20 on Thu 18 Mar to 04:09 on Fri 19 Mar.",
          "fact": "2010-03-17T23:50:09Z → 2010-03-19T00:38:51Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:16–12:04 on the 18th, 11:16–12:04 on the 19th.",
          "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 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 25611 s"
        },
        {
          "step": "ruling",
          "text": "Saubhāgya Śayana Vrata, Mashhad, 2010: Thursday 18 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": "2010-03-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saubhāgya Śayana Vrata 2010 falls on Thursday 18 March. Tṛtīyā runs from 03:20 on Thu 18 Mar to 04:09 on Fri 19 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vinayaka-chaturthi?on=2010-03-19",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24131,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-03-19T04:08:51+03:30",
          "utc": "2010-03-19T00:38:51Z",
          "ms": 1268959131020.8936
        },
        "end": {
          "local": "2010-03-20T04:33:14+03:30",
          "utc": "2010-03-20T01:03:14Z",
          "ms": 1269046993978.296
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-19T04:08:51+03:30",
          "utc": "2010-03-19T00:38:51Z",
          "ms": 1268959131020.8936
        },
        "end": {
          "local": "2010-03-20T04:33:14+03:30",
          "utc": "2010-03-20T01:03:14Z",
          "ms": 1269046993978.296
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-19",
          "window": {
            "start": {
              "local": "2010-03-19T11:15:42+03:30",
              "utc": "2010-03-19T07:45:42Z",
              "ms": 1268984742456.4976
            },
            "end": {
              "local": "2010-03-19T12:03:42+03:30",
              "utc": "2010-03-19T08:33:42Z",
              "ms": 1268987622456.4976
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-03-20",
          "window": {
            "start": {
              "local": "2010-03-20T11:15:25+03:30",
              "utc": "2010-03-20T07:45:25Z",
              "ms": 1269071124916.8806
            },
            "end": {
              "local": "2010-03-20T12:03:25+03:30",
              "utc": "2010-03-20T08:33:25Z",
              "ms": 1269074004916.8806
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 04:09 on Fri 19 Mar to 04:33 on Sat 20 Mar.",
          "fact": "2010-03-19T00:38:51Z → 2010-03-20T01:03:14Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:16–12:04 on the 19th, 11:15–12:03 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 24131 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 2010: Friday 19 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": "2010-03-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 2010 falls on Friday 19 March. Caturthī runs from 04:09 on Fri 19 Mar to 04:33 on Sat 20 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/vinayaka-chaturthi?on=2010-03-19",
      "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/2010/lakshmi-panchami",
      "festival": "lakshmi-panchami",
      "name": "Lakṣmī Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24131,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2010-03-20T04:33:14+03:30",
          "utc": "2010-03-20T01:03:14Z",
          "ms": 1269046993978.296
        },
        "end": {
          "local": "2010-03-21T04:32:22+03:30",
          "utc": "2010-03-21T01:02:22Z",
          "ms": 1269133342288.118
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-20T04:33:14+03:30",
          "utc": "2010-03-20T01:03:14Z",
          "ms": 1269046993978.296
        },
        "end": {
          "local": "2010-03-21T04:32:22+03:30",
          "utc": "2010-03-21T01:02:22Z",
          "ms": 1269133342288.118
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-20",
          "window": {
            "start": {
              "local": "2010-03-20T11:15:25+03:30",
              "utc": "2010-03-20T07:45:25Z",
              "ms": 1269071124916.8806
            },
            "end": {
              "local": "2010-03-20T12:03:25+03:30",
              "utc": "2010-03-20T08:33:25Z",
              "ms": 1269074004916.8806
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-03-21",
          "window": {
            "start": {
              "local": "2010-03-21T11:15:07+03:30",
              "utc": "2010-03-21T07:45:07Z",
              "ms": 1269157507230.8374
            },
            "end": {
              "local": "2010-03-21T12:03:07+03:30",
              "utc": "2010-03-21T08:33:07Z",
              "ms": 1269160387230.8374
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 04:33 on Sat 20 Mar to 04:32 on Sun 21 Mar.",
          "fact": "2010-03-20T01:03:14Z → 2010-03-21T01:02:22Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:15–12:03 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": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 24131 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pañcamī, Mashhad, 2010: Saturday 20 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": "2010-03-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Lakṣmī Pañcamī 2010 falls on Saturday 20 March. Pañcamī runs from 04:33 on Sat 20 Mar to 04:32 on Sun 21 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/bhavani-utpatti",
      "festival": "bhavani-utpatti",
      "name": "Bhavānī Utpatti",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29133,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2010-03-23T04:08:59+04:30",
          "utc": "2010-03-22T23:38:59Z",
          "ms": 1269301138537.5454
        },
        "end": {
          "local": "2010-03-24T02:43:45+04:30",
          "utc": "2010-03-23T22:13:45Z",
          "ms": 1269382425464.0813
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-23T04:08:59+04:30",
          "utc": "2010-03-22T23:38:59Z",
          "ms": 1269301138537.5454
        },
        "end": {
          "local": "2010-03-24T02:43:45+04:30",
          "utc": "2010-03-23T22:13:45Z",
          "ms": 1269382425464.0813
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-23",
          "window": {
            "start": {
              "local": "2010-03-23T12:14:31+04:30",
              "utc": "2010-03-23T07:44:31Z",
              "ms": 1269330271491.6462
            },
            "end": {
              "local": "2010-03-23T13:02:31+04:30",
              "utc": "2010-03-23T08:32:31Z",
              "ms": 1269333151491.6462
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-03-24",
          "window": {
            "start": {
              "local": "2010-03-24T12:14:13+04:30",
              "utc": "2010-03-24T07:44:13Z",
              "ms": 1269416653476.0024
            },
            "end": {
              "local": "2010-03-24T13:02:13+04:30",
              "utc": "2010-03-24T08:32:13Z",
              "ms": 1269419533476.0024
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 04:09 on Tue 23 Mar to 02:44 on Wed 24 Mar.",
          "fact": "2010-03-22T23:38:59Z → 2010-03-23T22:13:45Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 23rd, 12:14–13:02 on the 24th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 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. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 29133 s"
        },
        {
          "step": "ruling",
          "text": "Bhavānī Utpatti, Mashhad, 2010: Tuesday 23 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": "2010-03-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Bhavānī Utpatti 2010 falls on Tuesday 23 March. Aṣṭamī runs from 04:09 on Tue 23 Mar to 02:44 on Wed 24 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/rama-navami",
      "festival": "rama-navami",
      "name": "Rāma Navamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34228,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2010-03-24T02:43:45+04:30",
          "utc": "2010-03-23T22:13:45Z",
          "ms": 1269382425464.0813
        },
        "end": {
          "local": "2010-03-25T00:49:13+04:30",
          "utc": "2010-03-24T20:19:13Z",
          "ms": 1269461952901.8977
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-24T02:43:45+04:30",
          "utc": "2010-03-23T22:13:45Z",
          "ms": 1269382425464.0813
        },
        "end": {
          "local": "2010-03-25T00:49:13+04:30",
          "utc": "2010-03-24T20:19:13Z",
          "ms": 1269461952901.8977
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-24",
          "window": {
            "start": {
              "local": "2010-03-24T12:14:13+04:30",
              "utc": "2010-03-24T07:44:13Z",
              "ms": 1269416653476.0024
            },
            "end": {
              "local": "2010-03-24T13:02:13+04:30",
              "utc": "2010-03-24T08:32:13Z",
              "ms": 1269419533476.0024
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-03-25",
          "window": {
            "start": {
              "local": "2010-03-25T12:13:55+04:30",
              "utc": "2010-03-25T07:43:55Z",
              "ms": 1269503035389.3093
            },
            "end": {
              "local": "2010-03-25T13:01:55+04:30",
              "utc": "2010-03-25T08:31:55Z",
              "ms": 1269505915389.3093
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 02:44 on Wed 24 Mar to 00:49 on Thu 25 Mar.",
          "fact": "2010-03-23T22:13:45Z → 2010-03-24T20:19:13Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 24th, 12:14–13:02 on the 25th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during madhyāhna. It covers 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: unstated → only-day · margin 34228 s"
        },
        {
          "step": "ruling",
          "text": "Rāma Navamī, Mashhad, 2010: Wednesday 24 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": "2010-03-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Rāma Navamī 2010 falls on Wednesday 24 March. Navamī runs from 02:44 on Wed 24 Mar to 00:49 on Thu 25 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-03-26",
      "festival": "ekadashi",
      "name": "Kāmadā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28815,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-03-25T22:27:05+04:30",
          "utc": "2010-03-25T17:57:05Z",
          "ms": 1269539824755.748
        },
        "end": {
          "local": "2010-03-26T19:41:02+04:30",
          "utc": "2010-03-26T15:11:02Z",
          "ms": 1269616262225.5554
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-25T22:27:05+04:30",
          "utc": "2010-03-25T17:57:05Z",
          "ms": 1269539824755.748
        },
        "end": {
          "local": "2010-03-26T19:41:02+04:30",
          "utc": "2010-03-26T15:11:02Z",
          "ms": 1269616262225.5554
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-03-26",
          "window": {
            "start": {
              "local": "2010-03-26T06:27:19+04:30",
              "utc": "2010-03-26T01:57:19Z",
              "ms": 1269568639276.7515
            },
            "end": {
              "local": "2010-03-26T06:27:19+04:30",
              "utc": "2010-03-26T01:57:19Z",
              "ms": 1269568639276.7515
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-03-27",
          "window": {
            "start": {
              "local": "2010-03-27T06:25:52+04:30",
              "utc": "2010-03-27T01:55:52Z",
              "ms": 1269654951800.5945
            },
            "end": {
              "local": "2010-03-27T06:25:52+04:30",
              "utc": "2010-03-27T01:55:52Z",
              "ms": 1269654951800.5945
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 22:27 on Thu 25 Mar to 19:41 on Fri 26 Mar.",
          "fact": "2010-03-25T17:57:05Z → 2010-03-26T15:11:02Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:27 on the 26th and 06:26 on the 27th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 28815 s"
        },
        {
          "step": "ruling",
          "text": "Kāmadā Ekādaśī, Mashhad, 2010: Friday 26 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": "2010-03-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kāmadā Ekādaśī 2010 falls on Friday 26 March. Ekādaśī runs from 22:27 on Thu 25 Mar to 19:41 on Fri 26 Mar and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-03-26",
      "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/2010/pradosha-vrata?on=2010-03-27",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7922,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-03-27T16:36:45+04:30",
          "utc": "2010-03-27T12:06:45Z",
          "ms": 1269691604641.1833
        },
        "end": {
          "local": "2010-03-28T13:21:38+04:30",
          "utc": "2010-03-28T08:51:38Z",
          "ms": 1269766297668.9744
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-27T16:36:45+04:30",
          "utc": "2010-03-27T12:06:45Z",
          "ms": 1269691604641.1833
        },
        "end": {
          "local": "2010-03-28T13:21:38+04:30",
          "utc": "2010-03-28T08:51:38Z",
          "ms": 1269766297668.9744
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-03-27",
          "window": {
            "start": {
              "local": "2010-03-27T18:48:46+04:30",
              "utc": "2010-03-27T14:18:46Z",
              "ms": 1269699526375.1443
            },
            "end": {
              "local": "2010-03-27T20:21:31+04:30",
              "utc": "2010-03-27T15:51:31Z",
              "ms": 1269705091445.369
            }
          },
          "covered_min": 93,
          "window_min": 93,
          "qualifies": true
        },
        {
          "local_date": "2010-03-28",
          "window": {
            "start": {
              "local": "2010-03-28T18:49:37+04:30",
              "utc": "2010-03-28T14:19:37Z",
              "ms": 1269785977434.9998
            },
            "end": {
              "local": "2010-03-28T20:22:04+04:30",
              "utc": "2010-03-28T15:52:04Z",
              "ms": 1269791524058.5654
            }
          },
          "covered_min": 0,
          "window_min": 92,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 16:37 on Sat 27 Mar to 13:22 on Sun 28 Mar.",
          "fact": "2010-03-27T12:06:45Z → 2010-03-28T08:51:38Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:49–20:22 on the 27th, 18:50–20:22 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 93 of 93 minutes on the 27th and 0 of 92 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 7922 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Saturday 27 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": "2010-03-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Saturday 27 March. Trayodaśī runs from 16:37 on Sat 27 Mar to 13:22 on Sun 28 Mar and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-03-27",
      "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/2010/ananga-trayodashi",
      "festival": "ananga-trayodashi",
      "name": "Anaṅga Trayodaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1237,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-03-27T16:36:45+04:30",
          "utc": "2010-03-27T12:06:45Z",
          "ms": 1269691604641.1833
        },
        "end": {
          "local": "2010-03-28T13:21:38+04:30",
          "utc": "2010-03-28T08:51:38Z",
          "ms": 1269766297668.9744
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-27T16:36:45+04:30",
          "utc": "2010-03-27T12:06:45Z",
          "ms": 1269691604641.1833
        },
        "end": {
          "local": "2010-03-28T13:21:38+04:30",
          "utc": "2010-03-28T08:51:38Z",
          "ms": 1269766297668.9744
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-27",
          "window": {
            "start": {
              "local": "2010-03-27T12:13:19+04:30",
              "utc": "2010-03-27T07:43:19Z",
              "ms": 1269675799087.8694
            },
            "end": {
              "local": "2010-03-27T13:01:19+04:30",
              "utc": "2010-03-27T08:31:19Z",
              "ms": 1269678679087.8694
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-03-28",
          "window": {
            "start": {
              "local": "2010-03-28T12:13:01+04:30",
              "utc": "2010-03-28T07:43:01Z",
              "ms": 1269762180918.4146
            },
            "end": {
              "local": "2010-03-28T13:01:01+04:30",
              "utc": "2010-03-28T08:31:01Z",
              "ms": 1269765060918.4146
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 16:37 on Sat 27 Mar to 13:22 on Sun 28 Mar.",
          "fact": "2010-03-27T12:06:45Z → 2010-03-28T08:51:38Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 27th, 12:13–13:01 on the 28th.",
          "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 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: purvaviddha → only-day · margin 1237 s"
        },
        {
          "step": "ruling",
          "text": "Anaṅga Trayodaśī, Mashhad, 2010: Sunday 28 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": "2010-03-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Anaṅga Trayodaśī 2010 falls on Sunday 28 March. Trayodaśī runs from 16:37 on Sat 27 Mar to 13:22 on Sun 28 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vishnu-damanaka-chaturdashi",
      "festival": "vishnu-damanaka-chaturdashi",
      "name": "Viṣṇudamanaka Caturdaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1237,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-03-28T13:21:38+04:30",
          "utc": "2010-03-28T08:51:38Z",
          "ms": 1269766297668.9744
        },
        "end": {
          "local": "2010-03-29T10:04:33+04:30",
          "utc": "2010-03-29T05:34:33Z",
          "ms": 1269840873335.2534
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-28T13:21:38+04:30",
          "utc": "2010-03-28T08:51:38Z",
          "ms": 1269766297668.9744
        },
        "end": {
          "local": "2010-03-29T10:04:33+04:30",
          "utc": "2010-03-29T05:34:33Z",
          "ms": 1269840873335.2534
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-28",
          "window": {
            "start": {
              "local": "2010-03-28T12:13:01+04:30",
              "utc": "2010-03-28T07:43:01Z",
              "ms": 1269762180918.4146
            },
            "end": {
              "local": "2010-03-28T13:01:01+04:30",
              "utc": "2010-03-28T08:31:01Z",
              "ms": 1269765060918.4146
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-03-29",
          "window": {
            "start": {
              "local": "2010-03-29T12:12:43+04:30",
              "utc": "2010-03-29T07:42:43Z",
              "ms": 1269848562768.1707
            },
            "end": {
              "local": "2010-03-29T13:00:43+04:30",
              "utc": "2010-03-29T08:30:43Z",
              "ms": 1269851442768.1707
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 13:22 on Sun 28 Mar to 10:05 on Mon 29 Mar.",
          "fact": "2010-03-28T08:51:38Z → 2010-03-29T05:34:33Z"
        },
        {
          "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": "Caturdaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 0 of 48 on the 29th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: paraviddha → second-day · margin 1237 s"
        },
        {
          "step": "ruling",
          "text": "Viṣṇudamanaka Caturdaśī, Mashhad, 2010: Monday 29 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": "2010-03-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Viṣṇudamanaka Caturdaśī 2010 falls on Monday 29 March. Caturdaśī runs from 13:22 on Sun 28 Mar to 10:05 on Mon 29 Mar, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/chaitri-purnima",
      "festival": "chaitri-purnima",
      "name": "Caitrī Pūrṇimā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-03-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7689,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-03-29T10:04:33+04:30",
          "utc": "2010-03-29T05:34:33Z",
          "ms": 1269840873335.2534
        },
        "end": {
          "local": "2010-03-30T06:55:25+04:30",
          "utc": "2010-03-30T02:25:25Z",
          "ms": 1269915925007.3296
        },
        "month": {
          "amanta": 0,
          "purnimanta": 0,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Caitra"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-03-29T10:04:33+04:30",
          "utc": "2010-03-29T05:34:33Z",
          "ms": 1269840873335.2534
        },
        "end": {
          "local": "2010-03-30T06:55:25+04:30",
          "utc": "2010-03-30T02:25:25Z",
          "ms": 1269915925007.3296
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-03-29",
          "window": {
            "start": {
              "local": "2010-03-29T12:12:43+04:30",
              "utc": "2010-03-29T07:42:43Z",
              "ms": 1269848562768.1707
            },
            "end": {
              "local": "2010-03-29T13:00:43+04:30",
              "utc": "2010-03-29T08:30:43Z",
              "ms": 1269851442768.1707
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-03-30",
          "window": {
            "start": {
              "local": "2010-03-30T12:12:25+04:30",
              "utc": "2010-03-30T07:42:25Z",
              "ms": 1269934944661.497
            },
            "end": {
              "local": "2010-03-30T13:00:25+04:30",
              "utc": "2010-03-30T08:30:25Z",
              "ms": 1269937824661.497
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 10:05 on Mon 29 Mar to 06:55 on Tue 30 Mar.",
          "fact": "2010-03-29T05:34:33Z → 2010-03-30T02:25:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 29th, 12:12–13:00 on the 30th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 29th and 0 of 48 on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 7689 s"
        },
        {
          "step": "ruling",
          "text": "Caitrī Pūrṇimā, Mashhad, 2010: Monday 29 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": "2010-03-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-03-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Caitrī Pūrṇimā 2010 falls on Monday 29 March. Pūrṇimā runs from 10:05 on Mon 29 Mar to 06:55 on Tue 30 Mar and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-04-02",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-04-02",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 183,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-04-01T23:58:40+04:30",
          "utc": "2010-04-01T19:28:40Z",
          "ms": 1270150120413.6755
        },
        "end": {
          "local": "2010-04-02T23:00:41+04:30",
          "utc": "2010-04-02T18:30:41Z",
          "ms": 1270233041490.5837
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-04-01T23:58:40+04:30",
          "utc": "2010-04-01T19:28:40Z",
          "ms": 1270150120413.6755
        },
        "end": {
          "local": "2010-04-02T23:00:41+04:30",
          "utc": "2010-04-02T18:30:41Z",
          "ms": 1270233041490.5837
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-04-01",
          "window": {
            "start": {
              "local": "2010-04-01T21:51:36+04:30",
              "utc": "2010-04-01T17:21:36Z",
              "ms": 1270142495929.4084
            },
            "end": {
              "local": "2010-04-01T21:51:36+04:30",
              "utc": "2010-04-01T17:21:36Z",
              "ms": 1270142495929.4084
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-04-02",
          "window": {
            "start": {
              "local": "2010-04-02T22:57:38+04:30",
              "utc": "2010-04-02T18:27:38Z",
              "ms": 1270232858481.1174
            },
            "end": {
              "local": "2010-04-02T22:57:38+04:30",
              "utc": "2010-04-02T18:27:38Z",
              "ms": 1270232858481.1174
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 23:59 on Thu 1 Apr to 23:01 on Fri 2 Apr.",
          "fact": "2010-04-01T19:28:40Z → 2010-04-02T18:30:41Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:52 on the 1st and 22:58 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 183 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Friday 2 April.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2010-04-02",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-04-01",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Friday 2 April. Caturthī runs from 23:59 on Thu 1 Apr to 23:01 on Fri 2 Apr and is current at moonrise that day. It is 3 min 03 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-04-02",
      "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/2010/ekadashi?on=2010-04-10",
      "festival": "ekadashi",
      "name": "Varūthinī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-04-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8134,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-04-09T08:22:47+04:30",
          "utc": "2010-04-09T03:52:47Z",
          "ms": 1270785166701.5789
        },
        "end": {
          "local": "2010-04-10T10:54:16+04:30",
          "utc": "2010-04-10T06:24:16Z",
          "ms": 1270880656076.1257
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-04-09T08:22:47+04:30",
          "utc": "2010-04-09T03:52:47Z",
          "ms": 1270785166701.5789
        },
        "end": {
          "local": "2010-04-10T10:54:16+04:30",
          "utc": "2010-04-10T06:24:16Z",
          "ms": 1270880656076.1257
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-04-09",
          "window": {
            "start": {
              "local": "2010-04-09T06:07:13+04:30",
              "utc": "2010-04-09T01:37:13Z",
              "ms": 1270777033148.0037
            },
            "end": {
              "local": "2010-04-09T06:07:13+04:30",
              "utc": "2010-04-09T01:37:13Z",
              "ms": 1270777033148.0037
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-04-10",
          "window": {
            "start": {
              "local": "2010-04-10T06:05:50+04:30",
              "utc": "2010-04-10T01:35:50Z",
              "ms": 1270863349611.3787
            },
            "end": {
              "local": "2010-04-10T06:05:50+04:30",
              "utc": "2010-04-10T01:35:50Z",
              "ms": 1270863349611.3787
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 08:23 on Fri 9 Apr to 10:54 on Sat 10 Apr.",
          "fact": "2010-04-09T03:52:47Z → 2010-04-10T06:24:16Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:07 on the 9th and 06:06 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 8134 s"
        },
        {
          "step": "ruling",
          "text": "Varūthinī Ekādaśī, Mashhad, 2010: Saturday 10 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": "2010-04-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-04-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Varūthinī Ekādaśī 2010 falls on Saturday 10 April. Ekādaśī runs from 08:23 on Fri 9 Apr to 10:54 on Sat 10 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-04-10",
      "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/2010/pradosha-vrata?on=2010-04-11",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-04-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 14887,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-04-11T13:07:18+04:30",
          "utc": "2010-04-11T08:37:18Z",
          "ms": 1270975038358.5154
        },
        "end": {
          "local": "2010-04-12T14:54:15+04:30",
          "utc": "2010-04-12T10:24:15Z",
          "ms": 1271067855059.4844
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-04-11T13:07:18+04:30",
          "utc": "2010-04-11T08:37:18Z",
          "ms": 1270975038358.5154
        },
        "end": {
          "local": "2010-04-12T14:54:15+04:30",
          "utc": "2010-04-12T10:24:15Z",
          "ms": 1271067855059.4844
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-04-11",
          "window": {
            "start": {
              "local": "2010-04-11T19:01:31+04:30",
              "utc": "2010-04-11T14:31:31Z",
              "ms": 1270996291039.67
            },
            "end": {
              "local": "2010-04-11T20:29:43+04:30",
              "utc": "2010-04-11T15:59:43Z",
              "ms": 1271001583446.323
            }
          },
          "covered_min": 88,
          "window_min": 88,
          "qualifies": true
        },
        {
          "local_date": "2010-04-12",
          "window": {
            "start": {
              "local": "2010-04-12T19:02:22+04:30",
              "utc": "2010-04-12T14:32:22Z",
              "ms": 1271082742274.195
            },
            "end": {
              "local": "2010-04-12T20:30:17+04:30",
              "utc": "2010-04-12T16:00:17Z",
              "ms": 1271088016925.6587
            }
          },
          "covered_min": 0,
          "window_min": 88,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 13:07 on Sun 11 Apr to 14:54 on Mon 12 Apr.",
          "fact": "2010-04-11T08:37:18Z → 2010-04-12T10:24:15Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:02–20:30 on the 11th, 19:02–20:30 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 88 of 88 minutes on the 11th and 0 of 88 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 14887 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Sunday 11 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": "2010-04-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-04-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Sunday 11 April. Trayodaśī runs from 13:07 on Sun 11 Apr to 14:54 on Mon 12 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-04-11",
      "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/2010/shivaratri?on=2010-04-12",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-04-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28575,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-04-12T14:54:15+04:30",
          "utc": "2010-04-12T10:24:15Z",
          "ms": 1271067855059.4844
        },
        "end": {
          "local": "2010-04-13T16:11:32+04:30",
          "utc": "2010-04-13T11:41:32Z",
          "ms": 1271158892456.5408
        },
        "month": {
          "amanta": 0,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Caitra",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-04-12T14:54:15+04:30",
          "utc": "2010-04-12T10:24:15Z",
          "ms": 1271067855059.4844
        },
        "end": {
          "local": "2010-04-13T16:11:32+04:30",
          "utc": "2010-04-13T11:41:32Z",
          "ms": 1271158892456.5408
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-04-12",
          "window": {
            "start": {
              "local": "2010-04-13T00:08:02+04:30",
              "utc": "2010-04-12T19:38:02Z",
              "ms": 1271101082217.183
            },
            "end": {
              "local": "2010-04-13T00:56:02+04:30",
              "utc": "2010-04-12T20:26:02Z",
              "ms": 1271103962217.183
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-04-13",
          "window": {
            "start": {
              "local": "2010-04-14T00:07:47+04:30",
              "utc": "2010-04-13T19:37:47Z",
              "ms": 1271187467192.3296
            },
            "end": {
              "local": "2010-04-14T00:55:47+04:30",
              "utc": "2010-04-13T20:25:47Z",
              "ms": 1271190347192.3296
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 14:54 on Mon 12 Apr to 16:12 on Tue 13 Apr.",
          "fact": "2010-04-12T10:24:15Z → 2010-04-13T11:41:32Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:08–00:56 on the 12th, 00:08–00:56 on the 13th.",
          "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 12th and 0 of 48 on the 13th.",
          "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 28575 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Monday 12 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": "2010-04-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-04-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Monday 12 April. Caturdaśī runs from 14:54 on Mon 12 Apr to 16:12 on Tue 13 Apr and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-04-12",
      "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/2010/vaishakhi",
      "festival": "vaishakhi",
      "name": "Vaiśākhī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-04-13",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 177,
      "anga": {
        "type": "sankranti",
        "index": 0,
        "key": "mesha",
        "name": "Meṣa",
        "start": {
          "local": "2010-04-14T05:57:24+04:30",
          "utc": "2010-04-14T01:27:24Z",
          "ms": 1271208444047.3445
        },
        "end": {
          "local": "2010-05-15T02:47:01+04:30",
          "utc": "2010-05-14T22:17:01Z",
          "ms": 1273875420956.6067
        }
      },
      "span": {
        "of": "transit",
        "start": {
          "local": "2010-04-14T05:57:24+04:30",
          "utc": "2010-04-14T01:27:24Z",
          "ms": 1271208444047.3445
        },
        "end": {
          "local": "2010-04-14T05:57:24+04:30",
          "utc": "2010-04-14T01:27:24Z",
          "ms": 1271208444047.3445
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "2010-04-13",
          "window": {
            "start": {
              "local": "2010-04-13T06:01:42+04:30",
              "utc": "2010-04-13T01:31:42Z",
              "ms": 1271122302160.1714
            },
            "end": {
              "local": "2010-04-14T06:00:21+04:30",
              "utc": "2010-04-14T01:30:21Z",
              "ms": 1271208620821.5378
            }
          },
          "covered_min": 1,
          "window_min": 1439,
          "qualifies": true
        },
        {
          "local_date": "2010-04-14",
          "window": {
            "start": {
              "local": "2010-04-14T06:00:21+04:30",
              "utc": "2010-04-14T01:30:21Z",
              "ms": 1271208620821.5378
            },
            "end": {
              "local": "2010-04-15T05:59:00+04:30",
              "utc": "2010-04-15T01:29:00Z",
              "ms": 1271294940100.4202
            }
          },
          "covered_min": 0,
          "window_min": 1439,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "The Sun enters Meṣa at 05:57 on Wed 14 Apr.",
          "fact": "2010-04-14T01:27:24Z · nirayana, lahiri-iae1985"
        },
        {
          "step": "kaala",
          "text": "The day runs from sunrise to the next sunrise: from 06:02 on the 13th, and from 06:00 on the 14th.",
          "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 13th, not the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106"
        },
        {
          "step": "tie_break",
          "text": "An instant falls in one day and no other. No tie-break is needed.",
          "fact": "day counted from sunrise → only-day · margin 177 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Vaiśākhī, Mashhad, 2010: Tuesday 13 April.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2010-04-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-04-13",
          "confidence": "boundary"
        },
        {
          "kind": "reckoning",
          "id": "civil-day",
          "local_date": "2010-04-14",
          "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": "2010-04-14",
          "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 2010 falls on Tuesday 13 April. The Sun enters Meṣa at 05:57 on Wed 14 Apr, and the rule counts the day from sunrise. Counted from midnight, or by the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 14 April. It is 2 min 57 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vinayaka-chaturthi?on=2010-04-18",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-04-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10893,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-04-17T16:44:33+04:30",
          "utc": "2010-04-17T12:14:33Z",
          "ms": 1271506473410.74
        },
        "end": {
          "local": "2010-04-18T15:56:50+04:30",
          "utc": "2010-04-18T11:26:50Z",
          "ms": 1271590009697.9697
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": true,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-04-17T16:44:33+04:30",
          "utc": "2010-04-17T12:14:33Z",
          "ms": 1271506473410.74
        },
        "end": {
          "local": "2010-04-18T15:56:50+04:30",
          "utc": "2010-04-18T11:26:50Z",
          "ms": 1271590009697.9697
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-04-17",
          "window": {
            "start": {
              "local": "2010-04-17T12:07:30+04:30",
              "utc": "2010-04-17T07:37:30Z",
              "ms": 1271489849920.7842
            },
            "end": {
              "local": "2010-04-17T12:55:30+04:30",
              "utc": "2010-04-17T08:25:30Z",
              "ms": 1271492729920.7842
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-04-18",
          "window": {
            "start": {
              "local": "2010-04-18T12:07:16+04:30",
              "utc": "2010-04-18T07:37:16Z",
              "ms": 1271576236327.3547
            },
            "end": {
              "local": "2010-04-18T12:55:16+04:30",
              "utc": "2010-04-18T08:25:16Z",
              "ms": 1271579116327.3547
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 16:45 on Sat 17 Apr to 15:57 on Sun 18 Apr.",
          "fact": "2010-04-17T12:14:33Z → 2010-04-18T11:26:50Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 17th, 12:07–12:55 on the 18th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 10893 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 2010: Sunday 18 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": "2010-04-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-04-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 2010 falls on Sunday 18 April. Caturthī runs from 16:45 on Sat 17 Apr to 15:57 on Sun 18 Apr and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/vinayaka-chaturthi?on=2010-04-18",
      "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/2010/ekadashi?on=2010-04-24",
      "festival": "ekadashi",
      "name": "Śukla Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-04-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2276,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-04-24T05:09:30+04:30",
          "utc": "2010-04-24T00:39:30Z",
          "ms": 1272069570056.9705
        },
        "end": {
          "local": "2010-04-25T02:33:59+04:30",
          "utc": "2010-04-24T22:03:59Z",
          "ms": 1272146638560.749
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": true,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-04-24T05:09:30+04:30",
          "utc": "2010-04-24T00:39:30Z",
          "ms": 1272069570056.9705
        },
        "end": {
          "local": "2010-04-25T02:33:59+04:30",
          "utc": "2010-04-24T22:03:59Z",
          "ms": 1272146638560.749
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-04-24",
          "window": {
            "start": {
              "local": "2010-04-24T05:47:26+04:30",
              "utc": "2010-04-24T01:17:26Z",
              "ms": 1272071845768.1467
            },
            "end": {
              "local": "2010-04-24T05:47:26+04:30",
              "utc": "2010-04-24T01:17:26Z",
              "ms": 1272071845768.1467
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-04-25",
          "window": {
            "start": {
              "local": "2010-04-25T05:46:13+04:30",
              "utc": "2010-04-25T01:16:13Z",
              "ms": 1272158172696.8396
            },
            "end": {
              "local": "2010-04-25T05:46:13+04:30",
              "utc": "2010-04-25T01:16:13Z",
              "ms": 1272158172696.8396
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 05:10 on Sat 24 Apr to 02:34 on Sun 25 Apr.",
          "fact": "2010-04-24T00:39:30Z → 2010-04-24T22:03:59Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:47 on the 24th and 05:46 on the 25th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 24th and is not on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 2276 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Ekādaśī, Mashhad, 2010: Saturday 24 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": "2010-04-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-04-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Ekādaśī 2010 falls on Saturday 24 April. Ekādaśī runs from 05:10 on Sat 24 Apr to 02:34 on Sun 25 Apr and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-04-24",
      "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/2010/pradosha-vrata?on=2010-04-26",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-04-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2419,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-04-25T23:54:43+04:30",
          "utc": "2010-04-25T19:24:43Z",
          "ms": 1272223483176.624
        },
        "end": {
          "local": "2010-04-26T21:18:38+04:30",
          "utc": "2010-04-26T16:48:38Z",
          "ms": 1272300517915.3
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": true,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-04-25T23:54:43+04:30",
          "utc": "2010-04-25T19:24:43Z",
          "ms": 1272223483176.624
        },
        "end": {
          "local": "2010-04-26T21:18:38+04:30",
          "utc": "2010-04-26T16:48:38Z",
          "ms": 1272300517915.3
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-04-25",
          "window": {
            "start": {
              "local": "2010-04-25T19:13:32+04:30",
              "utc": "2010-04-25T14:43:32Z",
              "ms": 1272206612051.7427
            },
            "end": {
              "local": "2010-04-25T20:37:44+04:30",
              "utc": "2010-04-25T16:07:44Z",
              "ms": 1272211663851.2192
            }
          },
          "covered_min": 0,
          "window_min": 84,
          "qualifies": false
        },
        {
          "local_date": "2010-04-26",
          "window": {
            "start": {
              "local": "2010-04-26T19:14:24+04:30",
              "utc": "2010-04-26T14:44:24Z",
              "ms": 1272293063704.4963
            },
            "end": {
              "local": "2010-04-26T20:38:19+04:30",
              "utc": "2010-04-26T16:08:19Z",
              "ms": 1272298099124.1418
            }
          },
          "covered_min": 84,
          "window_min": 84,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 23:55 on Sun 25 Apr to 21:19 on Mon 26 Apr.",
          "fact": "2010-04-25T19:24:43Z → 2010-04-26T16:48:38Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:14–20:38 on the 25th, 19:14–20:38 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 0 of 84 minutes on the 25th and 84 of 84 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 2419 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Monday 26 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": "2010-04-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-04-26",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Monday 26 April. Trayodaśī runs from 23:55 on Sun 25 Apr to 21:19 on Mon 26 Apr and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-04-26",
      "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/2010/sankashta-chaturthi?on=2010-05-01",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31664,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-05-01T13:51:30+04:30",
          "utc": "2010-05-01T09:21:30Z",
          "ms": 1272705690118.2253
        },
        "end": {
          "local": "2010-05-02T14:17:24+04:30",
          "utc": "2010-05-02T09:47:24Z",
          "ms": 1272793643796.0222
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": true,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-01T13:51:30+04:30",
          "utc": "2010-05-01T09:21:30Z",
          "ms": 1272705690118.2253
        },
        "end": {
          "local": "2010-05-02T14:17:24+04:30",
          "utc": "2010-05-02T09:47:24Z",
          "ms": 1272793643796.0222
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-05-01",
          "window": {
            "start": {
              "local": "2010-05-01T22:39:14+04:30",
              "utc": "2010-05-01T18:09:14Z",
              "ms": 1272737354348.5708
            },
            "end": {
              "local": "2010-05-01T22:39:14+04:30",
              "utc": "2010-05-01T18:09:14Z",
              "ms": 1272737354348.5708
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-05-02",
          "window": {
            "start": {
              "local": "2010-05-02T23:29:06+04:30",
              "utc": "2010-05-02T18:59:06Z",
              "ms": 1272826746160.1587
            },
            "end": {
              "local": "2010-05-02T23:29:06+04:30",
              "utc": "2010-05-02T18:59:06Z",
              "ms": 1272826746160.1587
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:52 on Sat 1 May to 14:17 on Sun 2 May.",
          "fact": "2010-05-01T09:21:30Z → 2010-05-02T09:47:24Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:39 on the 1st and 23:29 on the 2nd.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 31664 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Saturday 1 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": "2010-05-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Saturday 1 May. Caturthī runs from 13:52 on Sat 1 May to 14:17 on Sun 2 May and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-05-01",
      "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/2010/ekadashi?on=2010-05-09",
      "festival": "ekadashi",
      "name": "Kṛṣṇa Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3910,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-05-09T02:40:11+04:30",
          "utc": "2010-05-08T22:10:11Z",
          "ms": 1273356610508.3333
        },
        "end": {
          "local": "2010-05-10T04:24:55+04:30",
          "utc": "2010-05-09T23:54:55Z",
          "ms": 1273449295038.9011
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": true,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-09T02:40:11+04:30",
          "utc": "2010-05-08T22:10:11Z",
          "ms": 1273356610508.3333
        },
        "end": {
          "local": "2010-05-10T04:24:55+04:30",
          "utc": "2010-05-09T23:54:55Z",
          "ms": 1273449295038.9011
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-05-09",
          "window": {
            "start": {
              "local": "2010-05-09T05:31:01+04:30",
              "utc": "2010-05-09T01:01:01Z",
              "ms": 1273366860594.375
            },
            "end": {
              "local": "2010-05-09T05:31:01+04:30",
              "utc": "2010-05-09T01:01:01Z",
              "ms": 1273366860594.375
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-05-10",
          "window": {
            "start": {
              "local": "2010-05-10T05:30:05+04:30",
              "utc": "2010-05-10T01:00:05Z",
              "ms": 1273453204556.053
            },
            "end": {
              "local": "2010-05-10T05:30:05+04:30",
              "utc": "2010-05-10T01:00:05Z",
              "ms": 1273453204556.053
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 02:40 on Sun 9 May to 04:25 on Mon 10 May.",
          "fact": "2010-05-08T22:10:11Z → 2010-05-09T23:54:55Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:31 on the 9th and 05:30 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 3910 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Ekādaśī, Mashhad, 2010: Sunday 9 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": "2010-05-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Ekādaśī 2010 falls on Sunday 9 May. Ekādaśī runs from 02:40 on Sun 9 May to 04:25 on Mon 10 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-05-09",
      "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/2010/pradosha-vrata?on=2010-05-11",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31731,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-05-11T05:35:37+04:30",
          "utc": "2010-05-11T01:05:37Z",
          "ms": 1273539936854.2603
        },
        "end": {
          "local": "2010-05-12T06:09:41+04:30",
          "utc": "2010-05-12T01:39:41Z",
          "ms": 1273628380913.9702
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": true,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-11T05:35:37+04:30",
          "utc": "2010-05-11T01:05:37Z",
          "ms": 1273539936854.2603
        },
        "end": {
          "local": "2010-05-12T06:09:41+04:30",
          "utc": "2010-05-12T01:39:41Z",
          "ms": 1273628380913.9702
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-05-10",
          "window": {
            "start": {
              "local": "2010-05-10T19:26:23+04:30",
              "utc": "2010-05-10T14:56:23Z",
              "ms": 1273503383166.3801
            },
            "end": {
              "local": "2010-05-10T20:46:45+04:30",
              "utc": "2010-05-10T16:16:45Z",
              "ms": 1273508205394.4148
            }
          },
          "covered_min": 0,
          "window_min": 80,
          "qualifies": false
        },
        {
          "local_date": "2010-05-11",
          "window": {
            "start": {
              "local": "2010-05-11T19:27:14+04:30",
              "utc": "2010-05-11T14:57:14Z",
              "ms": 1273589833706.0005
            },
            "end": {
              "local": "2010-05-11T20:47:22+04:30",
              "utc": "2010-05-11T16:17:22Z",
              "ms": 1273594642089.0767
            }
          },
          "covered_min": 80,
          "window_min": 80,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 05:36 on Tue 11 May to 06:10 on Wed 12 May.",
          "fact": "2010-05-11T01:05:37Z → 2010-05-12T01:39:41Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:26–20:47 on the 10th, 19:27–20:47 on the 11th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 80 minutes on the 10th and 80 of 80 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 31731 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Tuesday 11 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": "2010-05-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Tuesday 11 May. Trayodaśī runs from 05:36 on Tue 11 May to 06:10 on Wed 12 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-05-11",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/2010/shivaratri?on=2010-05-12",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18982,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-05-12T06:09:41+04:30",
          "utc": "2010-05-12T01:39:41Z",
          "ms": 1273628380913.9702
        },
        "end": {
          "local": "2010-05-13T06:08:07+04:30",
          "utc": "2010-05-13T01:38:07Z",
          "ms": 1273714686831.325
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": true,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-12T06:09:41+04:30",
          "utc": "2010-05-12T01:39:41Z",
          "ms": 1273628380913.9702
        },
        "end": {
          "local": "2010-05-13T06:08:07+04:30",
          "utc": "2010-05-13T01:38:07Z",
          "ms": 1273714686831.325
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-05-11",
          "window": {
            "start": {
              "local": "2010-05-12T00:03:45+04:30",
              "utc": "2010-05-11T19:33:45Z",
              "ms": 1273606425142.5361
            },
            "end": {
              "local": "2010-05-12T00:51:45+04:30",
              "utc": "2010-05-11T20:21:45Z",
              "ms": 1273609305142.5361
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-05-12",
          "window": {
            "start": {
              "local": "2010-05-13T00:03:44+04:30",
              "utc": "2010-05-12T19:33:44Z",
              "ms": 1273692824349.8882
            },
            "end": {
              "local": "2010-05-13T00:51:44+04:30",
              "utc": "2010-05-12T20:21:44Z",
              "ms": 1273695704349.8882
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 06:10 on Wed 12 May to 06:08 on Thu 13 May.",
          "fact": "2010-05-12T01:39:41Z → 2010-05-13T01:38:07Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:04–00:52 on the 11th, 00:04–00:52 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 18982 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Wednesday 12 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": "2010-05-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Wednesday 12 May. Caturdaśī runs from 06:10 on Wed 12 May to 06:08 on Thu 13 May and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-05-12",
      "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/2010/akshaya-tritiya",
      "festival": "akshaya-tritiya",
      "name": "Akṣaya Tṛtīyā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8075,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2010-05-16T03:10:22+04:30",
          "utc": "2010-05-15T22:40:22Z",
          "ms": 1273963222177.2634
        },
        "end": {
          "local": "2010-05-17T01:30:28+04:30",
          "utc": "2010-05-16T21:00:28Z",
          "ms": 1274043627863.7012
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-16T03:10:22+04:30",
          "utc": "2010-05-15T22:40:22Z",
          "ms": 1273963222177.2634
        },
        "end": {
          "local": "2010-05-17T01:30:28+04:30",
          "utc": "2010-05-16T21:00:28Z",
          "ms": 1274043627863.7012
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "2010-05-16",
          "window": {
            "start": {
              "local": "2010-05-16T05:24:58+04:30",
              "utc": "2010-05-16T00:54:58Z",
              "ms": 1273971297621.3955
            },
            "end": {
              "local": "2010-05-16T10:07:06+04:30",
              "utc": "2010-05-16T05:37:06Z",
              "ms": 1273988225859.6287
            }
          },
          "covered_min": 282,
          "window_min": 282,
          "qualifies": true
        },
        {
          "local_date": "2010-05-17",
          "window": {
            "start": {
              "local": "2010-05-17T05:24:12+04:30",
              "utc": "2010-05-17T00:54:12Z",
              "ms": 1274057651533.9841
            },
            "end": {
              "local": "2010-05-17T10:06:51+04:30",
              "utc": "2010-05-17T05:36:51Z",
              "ms": 1274074611363.9065
            }
          },
          "covered_min": 0,
          "window_min": 283,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 03:10 on Sun 16 May to 01:30 on Mon 17 May.",
          "fact": "2010-05-15T22:40:22Z → 2010-05-16T21:00:28Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:25–10:07 on the 16th, 05:24–10:07 on the 17th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 282 of 282 minutes on the 16th and 0 of 283 on the 17th.",
          "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 8075 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Tṛtīyā, Mashhad, 2010: Sunday 16 May.",
          "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": "2010-05-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Akṣaya Tṛtīyā 2010 falls on Sunday 16 May. Tṛtīyā runs from 03:10 on Sun 16 May to 01:30 on Mon 17 May and covers all of pūrvāhṇa that forenoon.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/parashurama-jayanti",
      "festival": "parashurama-jayanti",
      "name": "Paraśurāma Jayantī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16803,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2010-05-16T03:10:22+04:30",
          "utc": "2010-05-15T22:40:22Z",
          "ms": 1273963222177.2634
        },
        "end": {
          "local": "2010-05-17T01:30:28+04:30",
          "utc": "2010-05-16T21:00:28Z",
          "ms": 1274043627863.7012
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-16T03:10:22+04:30",
          "utc": "2010-05-15T22:40:22Z",
          "ms": 1273963222177.2634
        },
        "end": {
          "local": "2010-05-17T01:30:28+04:30",
          "utc": "2010-05-16T21:00:28Z",
          "ms": 1274043627863.7012
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-05-15",
          "window": {
            "start": {
              "local": "2010-05-15T19:30:33+04:30",
              "utc": "2010-05-15T15:00:33Z",
              "ms": 1273935633257.2903
            },
            "end": {
              "local": "2010-05-15T20:49:49+04:30",
              "utc": "2010-05-15T16:19:49Z",
              "ms": 1273940388505.8376
            }
          },
          "covered_min": 0,
          "window_min": 79,
          "qualifies": false
        },
        {
          "local_date": "2010-05-16",
          "window": {
            "start": {
              "local": "2010-05-16T19:31:22+04:30",
              "utc": "2010-05-16T15:01:22Z",
              "ms": 1274022082336.0952
            },
            "end": {
              "local": "2010-05-16T20:50:25+04:30",
              "utc": "2010-05-16T16:20:25Z",
              "ms": 1274026824895.8137
            }
          },
          "covered_min": 79,
          "window_min": 79,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 03:10 on Sun 16 May to 01:30 on Mon 17 May.",
          "fact": "2010-05-15T22:40:22Z → 2010-05-16T21:00:28Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:31–20:50 on the 15th, 19:31–20:50 on the 16th.",
          "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 79 minutes on the 15th and 79 of 79 on the 16th.",
          "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 16803 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Jayantī, Mashhad, 2010: Sunday 16 May.",
          "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": "2010-05-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Paraśurāma Jayantī 2010 falls on Sunday 16 May. Tṛtīyā runs from 03:10 on Sun 16 May to 01:30 on Mon 17 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vinayaka-chaturthi?on=2010-05-17",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 38023,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-05-17T01:30:28+04:30",
          "utc": "2010-05-16T21:00:28Z",
          "ms": 1274043627863.7012
        },
        "end": {
          "local": "2010-05-17T23:38:05+04:30",
          "utc": "2010-05-17T19:08:05Z",
          "ms": 1274123285465.868
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-17T01:30:28+04:30",
          "utc": "2010-05-16T21:00:28Z",
          "ms": 1274043627863.7012
        },
        "end": {
          "local": "2010-05-17T23:38:05+04:30",
          "utc": "2010-05-17T19:08:05Z",
          "ms": 1274123285465.868
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-05-17",
          "window": {
            "start": {
              "local": "2010-05-17T12:04:11+04:30",
              "utc": "2010-05-17T07:34:11Z",
              "ms": 1274081651278.8677
            },
            "end": {
              "local": "2010-05-17T12:52:11+04:30",
              "utc": "2010-05-17T08:22:11Z",
              "ms": 1274084531278.8677
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-05-18",
          "window": {
            "start": {
              "local": "2010-05-18T12:04:13+04:30",
              "utc": "2010-05-18T07:34:13Z",
              "ms": 1274168053113.8237
            },
            "end": {
              "local": "2010-05-18T12:52:13+04:30",
              "utc": "2010-05-18T08:22:13Z",
              "ms": 1274170933113.8237
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 01:30 on Mon 17 May to 23:38 on Mon 17 May.",
          "fact": "2010-05-16T21:00:28Z → 2010-05-17T19:08:05Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 17th, 12:04–12:52 on the 18th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 38023 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 2010: Monday 17 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": "2010-05-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 2010 falls on Monday 17 May. Caturthī runs from 01:30 on Mon 17 May to 23:38 on Mon 17 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/vinayaka-chaturthi?on=2010-05-17",
      "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/2010/shankara-jayanti",
      "festival": "shankara-jayanti",
      "name": "Śaṅkara Jayantī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31479,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2010-05-17T23:38:05+04:30",
          "utc": "2010-05-17T19:08:05Z",
          "ms": 1274123285465.868
        },
        "end": {
          "local": "2010-05-18T21:36:52+04:30",
          "utc": "2010-05-18T17:06:52Z",
          "ms": 1274202412197.696
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-17T23:38:05+04:30",
          "utc": "2010-05-17T19:08:05Z",
          "ms": 1274123285465.868
        },
        "end": {
          "local": "2010-05-18T21:36:52+04:30",
          "utc": "2010-05-18T17:06:52Z",
          "ms": 1274202412197.696
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-05-17",
          "window": {
            "start": {
              "local": "2010-05-17T12:04:11+04:30",
              "utc": "2010-05-17T07:34:11Z",
              "ms": 1274081651278.8677
            },
            "end": {
              "local": "2010-05-17T12:52:11+04:30",
              "utc": "2010-05-17T08:22:11Z",
              "ms": 1274084531278.8677
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-05-18",
          "window": {
            "start": {
              "local": "2010-05-18T12:04:13+04:30",
              "utc": "2010-05-18T07:34:13Z",
              "ms": 1274168053113.8237
            },
            "end": {
              "local": "2010-05-18T12:52:13+04:30",
              "utc": "2010-05-18T08:22:13Z",
              "ms": 1274170933113.8237
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 23:38 on Mon 17 May to 21:37 on Tue 18 May.",
          "fact": "2010-05-17T19:08:05Z → 2010-05-18T17:06:52Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 17th, 12:04–12:52 on the 18th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pañcamī 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: unstated → only-day · margin 31479 s"
        },
        {
          "step": "ruling",
          "text": "Śaṅkara Jayantī, Mashhad, 2010: Tuesday 18 May.",
          "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": "2010-05-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śaṅkara Jayantī 2010 falls on Tuesday 18 May. Pañcamī runs from 23:38 on Mon 17 May to 21:37 on Tue 18 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/gangotpatti",
      "festival": "gangotpatti",
      "name": "Gaṅgotpatti",
      "everyday": "Ganga Saptami",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15989,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2010-05-19T19:29:40+04:30",
          "utc": "2010-05-19T14:59:40Z",
          "ms": 1274281179640.4375
        },
        "end": {
          "local": "2010-05-20T17:18:48+04:30",
          "utc": "2010-05-20T12:48:48Z",
          "ms": 1274359727737.9868
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-19T19:29:40+04:30",
          "utc": "2010-05-19T14:59:40Z",
          "ms": 1274281179640.4375
        },
        "end": {
          "local": "2010-05-20T17:18:48+04:30",
          "utc": "2010-05-20T12:48:48Z",
          "ms": 1274359727737.9868
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-05-19",
          "window": {
            "start": {
              "local": "2010-05-19T12:04:15+04:30",
              "utc": "2010-05-19T07:34:15Z",
              "ms": 1274254455474.6719
            },
            "end": {
              "local": "2010-05-19T12:52:15+04:30",
              "utc": "2010-05-19T08:22:15Z",
              "ms": 1274257335474.6719
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-05-20",
          "window": {
            "start": {
              "local": "2010-05-20T12:04:18+04:30",
              "utc": "2010-05-20T07:34:18Z",
              "ms": 1274340858352.7783
            },
            "end": {
              "local": "2010-05-20T12:52:18+04:30",
              "utc": "2010-05-20T08:22:18Z",
              "ms": 1274343738352.7783
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 19:30 on Wed 19 May to 17:19 on Thu 20 May.",
          "fact": "2010-05-19T14:59:40Z → 2010-05-20T12:48:48Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 19th, 12:04–12:52 on the 20th.",
          "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 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: purvaviddha → only-day · margin 15989 s"
        },
        {
          "step": "ruling",
          "text": "Gaṅgotpatti, Mashhad, 2010: Thursday 20 May.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "gangotpatti",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 102",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami."
          }
        ],
        "kaala": "madhyahna",
        "priority": "purvaviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-05-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Gaṅgotpatti (Ganga Saptami) 2010 falls on Thursday 20 May. Saptamī runs from 19:30 on Wed 19 May to 17:19 on Thu 20 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-05-24",
      "festival": "ekadashi",
      "name": "Mohinī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12438,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-05-23T10:47:10+04:30",
          "utc": "2010-05-23T06:17:10Z",
          "ms": 1274595430026.1885
        },
        "end": {
          "local": "2010-05-24T08:46:50+04:30",
          "utc": "2010-05-24T04:16:50Z",
          "ms": 1274674609620.0164
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-23T10:47:10+04:30",
          "utc": "2010-05-23T06:17:10Z",
          "ms": 1274595430026.1885
        },
        "end": {
          "local": "2010-05-24T08:46:50+04:30",
          "utc": "2010-05-24T04:16:50Z",
          "ms": 1274674609620.0164
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-05-23",
          "window": {
            "start": {
              "local": "2010-05-23T05:20:07+04:30",
              "utc": "2010-05-23T00:50:07Z",
              "ms": 1274575807024.2334
            },
            "end": {
              "local": "2010-05-23T05:20:07+04:30",
              "utc": "2010-05-23T00:50:07Z",
              "ms": 1274575807024.2334
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-05-24",
          "window": {
            "start": {
              "local": "2010-05-24T05:19:32+04:30",
              "utc": "2010-05-24T00:49:32Z",
              "ms": 1274662171769.0513
            },
            "end": {
              "local": "2010-05-24T05:19:32+04:30",
              "utc": "2010-05-24T00:49:32Z",
              "ms": 1274662171769.0513
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 10:47 on Sun 23 May to 08:47 on Mon 24 May.",
          "fact": "2010-05-23T06:17:10Z → 2010-05-24T04:16:50Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:20 on the 23rd and 05:20 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 12438 s"
        },
        {
          "step": "ruling",
          "text": "Mohinī Ekādaśī, Mashhad, 2010: Monday 24 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": "2010-05-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mohinī Ekādaśī 2010 falls on Monday 24 May. Ekādaśī runs from 10:47 on Sun 23 May to 08:47 on Mon 24 May and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-05-24",
      "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/2010/parashurama-dvadashi",
      "festival": "parashurama-dvadashi",
      "name": "Paraśurāma Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11865,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2010-05-24T08:46:50+04:30",
          "utc": "2010-05-24T04:16:50Z",
          "ms": 1274674609620.0164
        },
        "end": {
          "local": "2010-05-25T06:58:22+04:30",
          "utc": "2010-05-25T02:28:22Z",
          "ms": 1274754502049.2786
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-24T08:46:50+04:30",
          "utc": "2010-05-24T04:16:50Z",
          "ms": 1274674609620.0164
        },
        "end": {
          "local": "2010-05-25T06:58:22+04:30",
          "utc": "2010-05-25T02:28:22Z",
          "ms": 1274754502049.2786
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-05-24",
          "window": {
            "start": {
              "local": "2010-05-24T12:04:35+04:30",
              "utc": "2010-05-24T07:34:35Z",
              "ms": 1274686474882.6619
            },
            "end": {
              "local": "2010-05-24T12:52:35+04:30",
              "utc": "2010-05-24T08:22:35Z",
              "ms": 1274689354882.6619
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-05-25",
          "window": {
            "start": {
              "local": "2010-05-25T12:04:40+04:30",
              "utc": "2010-05-25T07:34:40Z",
              "ms": 1274772880234.2903
            },
            "end": {
              "local": "2010-05-25T12:52:40+04:30",
              "utc": "2010-05-25T08:22:40Z",
              "ms": 1274775760234.2903
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 08:47 on Mon 24 May to 06:58 on Tue 25 May.",
          "fact": "2010-05-24T04:16:50Z → 2010-05-25T02:28:22Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 24th, 12:05–12:53 on the 25th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 11865 s"
        },
        {
          "step": "ruling",
          "text": "Paraśurāma Dvādaśī, Mashhad, 2010: Monday 24 May.",
          "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": "2010-05-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Paraśurāma Dvādaśī 2010 falls on Monday 24 May. Dvādaśī runs from 08:47 on Mon 24 May to 06:58 on Tue 25 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/rukmini-dvadashi",
      "festival": "rukmini-dvadashi",
      "name": "Rukmiṇī Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11865,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2010-05-24T08:46:50+04:30",
          "utc": "2010-05-24T04:16:50Z",
          "ms": 1274674609620.0164
        },
        "end": {
          "local": "2010-05-25T06:58:22+04:30",
          "utc": "2010-05-25T02:28:22Z",
          "ms": 1274754502049.2786
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-24T08:46:50+04:30",
          "utc": "2010-05-24T04:16:50Z",
          "ms": 1274674609620.0164
        },
        "end": {
          "local": "2010-05-25T06:58:22+04:30",
          "utc": "2010-05-25T02:28:22Z",
          "ms": 1274754502049.2786
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-05-24",
          "window": {
            "start": {
              "local": "2010-05-24T12:04:35+04:30",
              "utc": "2010-05-24T07:34:35Z",
              "ms": 1274686474882.6619
            },
            "end": {
              "local": "2010-05-24T12:52:35+04:30",
              "utc": "2010-05-24T08:22:35Z",
              "ms": 1274689354882.6619
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-05-25",
          "window": {
            "start": {
              "local": "2010-05-25T12:04:40+04:30",
              "utc": "2010-05-25T07:34:40Z",
              "ms": 1274772880234.2903
            },
            "end": {
              "local": "2010-05-25T12:52:40+04:30",
              "utc": "2010-05-25T08:22:40Z",
              "ms": 1274775760234.2903
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 08:47 on Mon 24 May to 06:58 on Tue 25 May.",
          "fact": "2010-05-24T04:16:50Z → 2010-05-25T02:28:22Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 24th, 12:05–12:53 on the 25th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 11865 s"
        },
        {
          "step": "ruling",
          "text": "Rukmiṇī Dvādaśī, Mashhad, 2010: Monday 24 May.",
          "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": "2010-05-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Rukmiṇī Dvādaśī 2010 falls on Monday 24 May. Dvādaśī runs from 08:47 on Mon 24 May to 06:58 on Tue 25 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/pradosha-vrata?on=2010-05-25",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30674,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-05-25T06:58:22+04:30",
          "utc": "2010-05-25T02:28:22Z",
          "ms": 1274754502049.2786
        },
        "end": {
          "local": "2010-05-26T05:26:57+04:30",
          "utc": "2010-05-26T00:56:57Z",
          "ms": 1274835416822.3308
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-25T06:58:22+04:30",
          "utc": "2010-05-25T02:28:22Z",
          "ms": 1274754502049.2786
        },
        "end": {
          "local": "2010-05-26T05:26:57+04:30",
          "utc": "2010-05-26T00:56:57Z",
          "ms": 1274835416822.3308
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-05-24",
          "window": {
            "start": {
              "local": "2010-05-24T19:37:38+04:30",
              "utc": "2010-05-24T15:07:38Z",
              "ms": 1274713657996.2725
            },
            "end": {
              "local": "2010-05-24T20:55:09+04:30",
              "utc": "2010-05-24T16:25:09Z",
              "ms": 1274718308680.7256
            }
          },
          "covered_min": 0,
          "window_min": 78,
          "qualifies": false
        },
        {
          "local_date": "2010-05-25",
          "window": {
            "start": {
              "local": "2010-05-25T19:38:22+04:30",
              "utc": "2010-05-25T15:08:22Z",
              "ms": 1274800102338.91
            },
            "end": {
              "local": "2010-05-25T20:55:43+04:30",
              "utc": "2010-05-25T16:25:43Z",
              "ms": 1274804742843.389
            }
          },
          "covered_min": 77,
          "window_min": 77,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 06:58 on Tue 25 May to 05:27 on Wed 26 May.",
          "fact": "2010-05-25T02:28:22Z → 2010-05-26T00:56:57Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:38–20:55 on the 24th, 19:38–20:56 on the 25th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 78 minutes on the 24th and 77 of 77 on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 30674 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Tuesday 25 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": "2010-05-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Tuesday 25 May. Trayodaśī runs from 06:58 on Tue 25 May to 05:27 on Wed 26 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-05-25",
      "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/2010/nrisimha-chaturdashi",
      "festival": "nrisimha-chaturdashi",
      "name": "Nṛsiṃha Caturdaśī",
      "everyday": "Narasimha Jayanti",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26510,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-05-26T05:26:57+04:30",
          "utc": "2010-05-26T00:56:57Z",
          "ms": 1274835416822.3308
        },
        "end": {
          "local": "2010-05-27T04:18:07+04:30",
          "utc": "2010-05-26T23:48:07Z",
          "ms": 1274917686669.9463
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-26T05:26:57+04:30",
          "utc": "2010-05-26T00:56:57Z",
          "ms": 1274835416822.3308
        },
        "end": {
          "local": "2010-05-27T04:18:07+04:30",
          "utc": "2010-05-26T23:48:07Z",
          "ms": 1274917686669.9463
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-05-25",
          "window": {
            "start": {
              "local": "2010-05-25T19:38:22+04:30",
              "utc": "2010-05-25T15:08:22Z",
              "ms": 1274800102338.91
            },
            "end": {
              "local": "2010-05-25T20:55:43+04:30",
              "utc": "2010-05-25T16:25:43Z",
              "ms": 1274804742843.389
            }
          },
          "covered_min": 0,
          "window_min": 77,
          "qualifies": false
        },
        {
          "local_date": "2010-05-26",
          "window": {
            "start": {
              "local": "2010-05-26T19:39:06+04:30",
              "utc": "2010-05-26T15:09:06Z",
              "ms": 1274886545997.261
            },
            "end": {
              "local": "2010-05-26T20:56:17+04:30",
              "utc": "2010-05-26T16:26:17Z",
              "ms": 1274891176632.7585
            }
          },
          "covered_min": 77,
          "window_min": 77,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 05:27 on Wed 26 May to 04:18 on Thu 27 May.",
          "fact": "2010-05-26T00:56:57Z → 2010-05-26T23:48:07Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:38–20:56 on the 25th, 19:39–20:56 on the 26th.",
          "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 77 minutes on the 25th and 77 of 77 on the 26th.",
          "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 26510 s"
        },
        {
          "step": "ruling",
          "text": "Nṛsiṃha Caturdaśī, Mashhad, 2010: Wednesday 26 May.",
          "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": "2010-05-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2010 falls on Wednesday 26 May. Caturdaśī runs from 05:27 on Wed 26 May to 04:18 on Thu 27 May and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/buddha-purnima",
      "festival": "buddha-purnima",
      "name": "Buddha Pūrṇimā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28006,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-05-27T04:18:07+04:30",
          "utc": "2010-05-26T23:48:07Z",
          "ms": 1274917686669.9463
        },
        "end": {
          "local": "2010-05-28T03:37:19+04:30",
          "utc": "2010-05-27T23:07:19Z",
          "ms": 1275001638548.6196
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-27T04:18:07+04:30",
          "utc": "2010-05-26T23:48:07Z",
          "ms": 1274917686669.9463
        },
        "end": {
          "local": "2010-05-28T03:37:19+04:30",
          "utc": "2010-05-27T23:07:19Z",
          "ms": 1275001638548.6196
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-05-27",
          "window": {
            "start": {
              "local": "2010-05-27T12:04:52+04:30",
              "utc": "2010-05-27T07:34:52Z",
              "ms": 1274945692352.083
            },
            "end": {
              "local": "2010-05-27T12:52:52+04:30",
              "utc": "2010-05-27T08:22:52Z",
              "ms": 1274948572352.083
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-05-28",
          "window": {
            "start": {
              "local": "2010-05-28T12:04:59+04:30",
              "utc": "2010-05-28T07:34:59Z",
              "ms": 1275032099102.8682
            },
            "end": {
              "local": "2010-05-28T12:52:59+04:30",
              "utc": "2010-05-28T08:22:59Z",
              "ms": 1275034979102.8682
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 04:18 on Thu 27 May to 03:37 on Fri 28 May.",
          "fact": "2010-05-26T23:48:07Z → 2010-05-27T23:07:19Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 27th, 12:05–12:53 on the 28th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 28006 s"
        },
        {
          "step": "ruling",
          "text": "Buddha Pūrṇimā, Mashhad, 2010: Thursday 27 May.",
          "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": "2010-05-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Buddha Pūrṇimā 2010 falls on Thursday 27 May. Pūrṇimā runs from 04:18 on Thu 27 May to 03:37 on Fri 28 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sampat-gauri-vrata",
      "festival": "sampat-gauri-vrata",
      "name": "Sampat Gaurī Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28006,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-05-27T04:18:07+04:30",
          "utc": "2010-05-26T23:48:07Z",
          "ms": 1274917686669.9463
        },
        "end": {
          "local": "2010-05-28T03:37:19+04:30",
          "utc": "2010-05-27T23:07:19Z",
          "ms": 1275001638548.6196
        },
        "month": {
          "amanta": 1,
          "purnimanta": 1,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Vaiśākha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-27T04:18:07+04:30",
          "utc": "2010-05-26T23:48:07Z",
          "ms": 1274917686669.9463
        },
        "end": {
          "local": "2010-05-28T03:37:19+04:30",
          "utc": "2010-05-27T23:07:19Z",
          "ms": 1275001638548.6196
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-05-27",
          "window": {
            "start": {
              "local": "2010-05-27T12:04:52+04:30",
              "utc": "2010-05-27T07:34:52Z",
              "ms": 1274945692352.083
            },
            "end": {
              "local": "2010-05-27T12:52:52+04:30",
              "utc": "2010-05-27T08:22:52Z",
              "ms": 1274948572352.083
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-05-28",
          "window": {
            "start": {
              "local": "2010-05-28T12:04:59+04:30",
              "utc": "2010-05-28T07:34:59Z",
              "ms": 1275032099102.8682
            },
            "end": {
              "local": "2010-05-28T12:52:59+04:30",
              "utc": "2010-05-28T08:22:59Z",
              "ms": 1275034979102.8682
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 04:18 on Thu 27 May to 03:37 on Fri 28 May.",
          "fact": "2010-05-26T23:48:07Z → 2010-05-27T23:07:19Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 27th, 12:05–12:53 on the 28th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 28006 s"
        },
        {
          "step": "ruling",
          "text": "Sampat Gaurī Vrata, Mashhad, 2010: Thursday 27 May.",
          "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": "2010-05-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Sampat Gaurī Vrata 2010 falls on Thursday 27 May. Pūrṇimā runs from 04:18 on Thu 27 May to 03:37 on Fri 28 May and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-05-31",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-05-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24939,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-05-31T05:01:15+04:30",
          "utc": "2010-05-31T00:31:15Z",
          "ms": 1275265875428.9927
        },
        "end": {
          "local": "2010-06-01T06:39:18+04:30",
          "utc": "2010-06-01T02:09:18Z",
          "ms": 1275358158157.2856
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-05-31T05:01:15+04:30",
          "utc": "2010-05-31T00:31:15Z",
          "ms": 1275265875428.9927
        },
        "end": {
          "local": "2010-06-01T06:39:18+04:30",
          "utc": "2010-06-01T02:09:18Z",
          "ms": 1275358158157.2856
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-05-30",
          "window": {
            "start": {
              "local": "2010-05-30T22:05:36+04:30",
              "utc": "2010-05-30T17:35:36Z",
              "ms": 1275240936475.6072
            },
            "end": {
              "local": "2010-05-30T22:05:36+04:30",
              "utc": "2010-05-30T17:35:36Z",
              "ms": 1275240936475.6072
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-05-31",
          "window": {
            "start": {
              "local": "2010-05-31T22:44:30+04:30",
              "utc": "2010-05-31T18:14:30Z",
              "ms": 1275329670306.4658
            },
            "end": {
              "local": "2010-05-31T22:44:30+04:30",
              "utc": "2010-05-31T18:14:30Z",
              "ms": 1275329670306.4658
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 05:01 on Mon 31 May to 06:39 on Tue 1 Jun.",
          "fact": "2010-05-31T00:31:15Z → 2010-06-01T02:09:18Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 22:06 on the 30th and 22:45 on the 31st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 30th and is on the 31st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 24939 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Monday 31 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": "2010-05-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-05-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Monday 31 May. Caturthī runs from 05:01 on Mon 31 May to 06:39 on Tue 1 Jun and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-05-31",
      "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/2010/ekadashi?on=2010-06-08",
      "festival": "ekadashi",
      "name": "Aparā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34443,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-06-07T19:00:37+04:30",
          "utc": "2010-06-07T14:30:37Z",
          "ms": 1275921036519.1409
        },
        "end": {
          "local": "2010-06-08T19:39:54+04:30",
          "utc": "2010-06-08T15:09:54Z",
          "ms": 1276009793812.9226
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-07T19:00:37+04:30",
          "utc": "2010-06-07T14:30:37Z",
          "ms": 1275921036519.1409
        },
        "end": {
          "local": "2010-06-08T19:39:54+04:30",
          "utc": "2010-06-08T15:09:54Z",
          "ms": 1276009793812.9226
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-06-08",
          "window": {
            "start": {
              "local": "2010-06-08T05:14:04+04:30",
              "utc": "2010-06-08T00:44:04Z",
              "ms": 1275957844378.9734
            },
            "end": {
              "local": "2010-06-08T05:14:04+04:30",
              "utc": "2010-06-08T00:44:04Z",
              "ms": 1275957844378.9734
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-06-09",
          "window": {
            "start": {
              "local": "2010-06-09T05:13:56+04:30",
              "utc": "2010-06-09T00:43:56Z",
              "ms": 1276044236355.1553
            },
            "end": {
              "local": "2010-06-09T05:13:56+04:30",
              "utc": "2010-06-09T00:43:56Z",
              "ms": 1276044236355.1553
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 19:01 on Mon 7 Jun to 19:40 on Tue 8 Jun.",
          "fact": "2010-06-07T14:30:37Z → 2010-06-08T15:09:54Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:14 on the 8th and 05:14 on the 9th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 8th and is not on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 34443 s"
        },
        {
          "step": "ruling",
          "text": "Aparā Ekādaśī, Mashhad, 2010: Tuesday 8 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": "2010-06-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Aparā Ekādaśī 2010 falls on Tuesday 8 June. Ekādaśī runs from 19:01 on Mon 7 Jun to 19:40 on Tue 8 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-06-08",
      "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/2010/pradosha-vrata?on=2010-06-09",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 632,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-06-09T19:37:15+04:30",
          "utc": "2010-06-09T15:07:15Z",
          "ms": 1276096034796.4226
        },
        "end": {
          "local": "2010-06-10T18:54:06+04:30",
          "utc": "2010-06-10T14:24:06Z",
          "ms": 1276179845682.0078
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-09T19:37:15+04:30",
          "utc": "2010-06-09T15:07:15Z",
          "ms": 1276096034796.4226
        },
        "end": {
          "local": "2010-06-10T18:54:06+04:30",
          "utc": "2010-06-10T14:24:06Z",
          "ms": 1276179845682.0078
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-06-09",
          "window": {
            "start": {
              "local": "2010-06-09T19:47:47+04:30",
              "utc": "2010-06-09T15:17:47Z",
              "ms": 1276096666703.1316
            },
            "end": {
              "local": "2010-06-09T21:03:15+04:30",
              "utc": "2010-06-09T16:33:15Z",
              "ms": 1276101195150.211
            }
          },
          "covered_min": 75,
          "window_min": 75,
          "qualifies": true
        },
        {
          "local_date": "2010-06-10",
          "window": {
            "start": {
              "local": "2010-06-10T19:48:16+04:30",
              "utc": "2010-06-10T15:18:16Z",
              "ms": 1276183095991.6284
            },
            "end": {
              "local": "2010-06-10T21:03:40+04:30",
              "utc": "2010-06-10T16:33:40Z",
              "ms": 1276187619922.3071
            }
          },
          "covered_min": 0,
          "window_min": 75,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 19:37 on Wed 9 Jun to 18:54 on Thu 10 Jun.",
          "fact": "2010-06-09T15:07:15Z → 2010-06-10T14:24:06Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:48–21:03 on the 9th, 19:48–21:04 on the 10th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 75 of 75 minutes on the 9th and 0 of 75 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 632 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Wednesday 9 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": "2010-06-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Wednesday 9 June. Trayodaśī runs from 19:37 on Wed 9 Jun to 18:54 on Thu 10 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-06-09",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/2010/shivaratri?on=2010-06-10",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18775,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-06-10T18:54:06+04:30",
          "utc": "2010-06-10T14:24:06Z",
          "ms": 1276179845682.0078
        },
        "end": {
          "local": "2010-06-11T17:34:35+04:30",
          "utc": "2010-06-11T13:04:35Z",
          "ms": 1276261474587.2969
        },
        "month": {
          "amanta": 1,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Vaiśākha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-10T18:54:06+04:30",
          "utc": "2010-06-10T14:24:06Z",
          "ms": 1276179845682.0078
        },
        "end": {
          "local": "2010-06-11T17:34:35+04:30",
          "utc": "2010-06-11T13:04:35Z",
          "ms": 1276261474587.2969
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-06-10",
          "window": {
            "start": {
              "local": "2010-06-11T00:07:01+04:30",
              "utc": "2010-06-10T19:37:01Z",
              "ms": 1276198620731.6733
            },
            "end": {
              "local": "2010-06-11T00:55:01+04:30",
              "utc": "2010-06-10T20:25:01Z",
              "ms": 1276201500731.6733
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-06-11",
          "window": {
            "start": {
              "local": "2010-06-12T00:07:13+04:30",
              "utc": "2010-06-11T19:37:13Z",
              "ms": 1276285033307.5476
            },
            "end": {
              "local": "2010-06-12T00:55:13+04:30",
              "utc": "2010-06-11T20:25:13Z",
              "ms": 1276287913307.5476
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 18:54 on Thu 10 Jun to 17:35 on Fri 11 Jun.",
          "fact": "2010-06-10T14:24:06Z → 2010-06-11T13:04:35Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:07–00:55 on the 10th, 00:07–00:55 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 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 18775 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Thursday 10 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": "2010-06-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Thursday 10 June. Caturdaśī runs from 18:54 on Thu 10 Jun to 17:35 on Fri 11 Jun and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-06-10",
      "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/2010/rambha-tritiya",
      "festival": "rambha-tritiya",
      "name": "Rambhā Tṛtīyā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4029,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2010-06-14T11:00:42+04:30",
          "utc": "2010-06-14T06:30:42Z",
          "ms": 1276497041571.0664
        },
        "end": {
          "local": "2010-06-15T08:20:51+04:30",
          "utc": "2010-06-15T03:50:51Z",
          "ms": 1276573850562.517
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-14T11:00:42+04:30",
          "utc": "2010-06-14T06:30:42Z",
          "ms": 1276497041571.0664
        },
        "end": {
          "local": "2010-06-15T08:20:51+04:30",
          "utc": "2010-06-15T03:50:51Z",
          "ms": 1276573850562.517
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-06-14",
          "window": {
            "start": {
              "local": "2010-06-14T12:07:51+04:30",
              "utc": "2010-06-14T07:37:51Z",
              "ms": 1276501071044.815
            },
            "end": {
              "local": "2010-06-14T12:55:51+04:30",
              "utc": "2010-06-14T08:25:51Z",
              "ms": 1276503951044.815
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-06-15",
          "window": {
            "start": {
              "local": "2010-06-15T12:08:03+04:30",
              "utc": "2010-06-15T07:38:03Z",
              "ms": 1276587483424.976
            },
            "end": {
              "local": "2010-06-15T12:56:03+04:30",
              "utc": "2010-06-15T08:26:03Z",
              "ms": 1276590363424.976
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 11:01 on Mon 14 Jun to 08:21 on Tue 15 Jun.",
          "fact": "2010-06-14T06:30:42Z → 2010-06-15T03:50:51Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 14th, 12:08–12:56 on the 15th.",
          "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 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: purvaviddha → only-day · margin 4029 s"
        },
        {
          "step": "ruling",
          "text": "Rambhā Tṛtīyā, Mashhad, 2010: Monday 14 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": "2010-06-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-14",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Rambhā Tṛtīyā 2010 falls on Monday 14 June. Tṛtīyā runs from 11:01 on Mon 14 Jun to 08:21 on Tue 15 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vinayaka-chaturthi?on=2010-06-15",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13633,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-06-15T08:20:51+04:30",
          "utc": "2010-06-15T03:50:51Z",
          "ms": 1276573850562.517
        },
        "end": {
          "local": "2010-06-16T05:37:50+04:30",
          "utc": "2010-06-16T01:07:50Z",
          "ms": 1276650469984.2493
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-15T08:20:51+04:30",
          "utc": "2010-06-15T03:50:51Z",
          "ms": 1276573850562.517
        },
        "end": {
          "local": "2010-06-16T05:37:50+04:30",
          "utc": "2010-06-16T01:07:50Z",
          "ms": 1276650469984.2493
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-06-15",
          "window": {
            "start": {
              "local": "2010-06-15T12:08:03+04:30",
              "utc": "2010-06-15T07:38:03Z",
              "ms": 1276587483424.976
            },
            "end": {
              "local": "2010-06-15T12:56:03+04:30",
              "utc": "2010-06-15T08:26:03Z",
              "ms": 1276590363424.976
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-06-16",
          "window": {
            "start": {
              "local": "2010-06-16T12:08:16+04:30",
              "utc": "2010-06-16T07:38:16Z",
              "ms": 1276673895899.8408
            },
            "end": {
              "local": "2010-06-16T12:56:16+04:30",
              "utc": "2010-06-16T08:26:16Z",
              "ms": 1276676775899.8408
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 08:21 on Tue 15 Jun to 05:38 on Wed 16 Jun.",
          "fact": "2010-06-15T03:50:51Z → 2010-06-16T01:07:50Z"
        },
        {
          "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": "Caturthī 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 13633 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 2010: Tuesday 15 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": "2010-06-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 2010 falls on Tuesday 15 June. Caturthī runs from 08:21 on Tue 15 Jun to 05:38 on Wed 16 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/vinayaka-chaturthi?on=2010-06-15",
      "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/2010/aranya-gauri-vrata",
      "festival": "aranya-gauri-vrata",
      "name": "Araṇya Gaurī Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33060,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2010-06-17T02:57:28+04:30",
          "utc": "2010-06-16T22:27:28Z",
          "ms": 1276727248424.5073
        },
        "end": {
          "local": "2010-06-18T00:24:49+04:30",
          "utc": "2010-06-17T19:54:49Z",
          "ms": 1276804489387.346
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-17T02:57:28+04:30",
          "utc": "2010-06-16T22:27:28Z",
          "ms": 1276727248424.5073
        },
        "end": {
          "local": "2010-06-18T00:24:49+04:30",
          "utc": "2010-06-17T19:54:49Z",
          "ms": 1276804489387.346
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-06-17",
          "window": {
            "start": {
              "local": "2010-06-17T12:08:28+04:30",
              "utc": "2010-06-17T07:38:28Z",
              "ms": 1276760308442.8005
            },
            "end": {
              "local": "2010-06-17T12:56:28+04:30",
              "utc": "2010-06-17T08:26:28Z",
              "ms": 1276763188442.8005
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-06-18",
          "window": {
            "start": {
              "local": "2010-06-18T12:08:41+04:30",
              "utc": "2010-06-18T07:38:41Z",
              "ms": 1276846721028.4648
            },
            "end": {
              "local": "2010-06-18T12:56:41+04:30",
              "utc": "2010-06-18T08:26:41Z",
              "ms": 1276849601028.4648
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 02:57 on Thu 17 Jun to 00:25 on Fri 18 Jun.",
          "fact": "2010-06-16T22:27:28Z → 2010-06-17T19:54:49Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 17th, 12:09–12:57 on the 18th.",
          "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 17th and 0 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 33060 s"
        },
        {
          "step": "ruling",
          "text": "Araṇya Gaurī Vrata, Mashhad, 2010: Thursday 17 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": "2010-06-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Araṇya Gaurī Vrata 2010 falls on Thursday 17 June. Ṣaṣṭhī runs from 02:57 on Thu 17 Jun to 00:25 on Fri 18 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/skanda-shashthi-jyaishtha",
      "festival": "skanda-shashthi-jyaishtha",
      "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33060,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2010-06-17T02:57:28+04:30",
          "utc": "2010-06-16T22:27:28Z",
          "ms": 1276727248424.5073
        },
        "end": {
          "local": "2010-06-18T00:24:49+04:30",
          "utc": "2010-06-17T19:54:49Z",
          "ms": 1276804489387.346
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-17T02:57:28+04:30",
          "utc": "2010-06-16T22:27:28Z",
          "ms": 1276727248424.5073
        },
        "end": {
          "local": "2010-06-18T00:24:49+04:30",
          "utc": "2010-06-17T19:54:49Z",
          "ms": 1276804489387.346
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-06-17",
          "window": {
            "start": {
              "local": "2010-06-17T12:08:28+04:30",
              "utc": "2010-06-17T07:38:28Z",
              "ms": 1276760308442.8005
            },
            "end": {
              "local": "2010-06-17T12:56:28+04:30",
              "utc": "2010-06-17T08:26:28Z",
              "ms": 1276763188442.8005
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-06-18",
          "window": {
            "start": {
              "local": "2010-06-18T12:08:41+04:30",
              "utc": "2010-06-18T07:38:41Z",
              "ms": 1276846721028.4648
            },
            "end": {
              "local": "2010-06-18T12:56:41+04:30",
              "utc": "2010-06-18T08:26:41Z",
              "ms": 1276849601028.4648
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 02:57 on Thu 17 Jun to 00:25 on Fri 18 Jun.",
          "fact": "2010-06-16T22:27:28Z → 2010-06-17T19:54:49Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 17th, 12:09–12:57 on the 18th.",
          "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 17th and 0 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: purvaviddha → only-day · margin 33060 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Mashhad, 2010: Thursday 17 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": "2010-06-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2010 falls on Thursday 17 June. Ṣaṣṭhī runs from 02:57 on Thu 17 Jun to 00:25 on Fri 18 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-06-22",
      "festival": "ekadashi",
      "name": "Nirjalā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37789,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-06-21T16:46:57+04:30",
          "utc": "2010-06-21T12:16:57Z",
          "ms": 1277122617374.8066
        },
        "end": {
          "local": "2010-06-22T15:44:32+04:30",
          "utc": "2010-06-22T11:14:32Z",
          "ms": 1277205272429.1592
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-21T16:46:57+04:30",
          "utc": "2010-06-21T12:16:57Z",
          "ms": 1277122617374.8066
        },
        "end": {
          "local": "2010-06-22T15:44:32+04:30",
          "utc": "2010-06-22T11:14:32Z",
          "ms": 1277205272429.1592
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-06-21",
          "window": {
            "start": {
              "local": "2010-06-21T05:14:30+04:30",
              "utc": "2010-06-21T00:44:30Z",
              "ms": 1277081070224.4233
            },
            "end": {
              "local": "2010-06-21T05:14:30+04:30",
              "utc": "2010-06-21T00:44:30Z",
              "ms": 1277081070224.4233
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-06-22",
          "window": {
            "start": {
              "local": "2010-06-22T05:14:43+04:30",
              "utc": "2010-06-22T00:44:43Z",
              "ms": 1277167483322.239
            },
            "end": {
              "local": "2010-06-22T05:14:43+04:30",
              "utc": "2010-06-22T00:44:43Z",
              "ms": 1277167483322.239
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 16:47 on Mon 21 Jun to 15:45 on Tue 22 Jun.",
          "fact": "2010-06-21T12:16:57Z → 2010-06-22T11:14:32Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:15 on the 21st and 05:15 on the 22nd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 21st and is on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 37789 s"
        },
        {
          "step": "ruling",
          "text": "Nirjalā Ekādaśī, Mashhad, 2010: Tuesday 22 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": "2010-06-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Nirjalā Ekādaśī 2010 falls on Tuesday 22 June. Ekādaśī runs from 16:47 on Mon 21 Jun to 15:45 on Tue 22 Jun and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-06-22",
      "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/2010/shri-rama-dvadashi",
      "festival": "shri-rama-dvadashi",
      "name": "Śrī Rāma Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7767,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2010-06-22T15:44:32+04:30",
          "utc": "2010-06-22T11:14:32Z",
          "ms": 1277205272429.1592
        },
        "end": {
          "local": "2010-06-23T15:07:11+04:30",
          "utc": "2010-06-23T10:37:11Z",
          "ms": 1277289431100.4424
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-22T15:44:32+04:30",
          "utc": "2010-06-22T11:14:32Z",
          "ms": 1277205272429.1592
        },
        "end": {
          "local": "2010-06-23T15:07:11+04:30",
          "utc": "2010-06-23T10:37:11Z",
          "ms": 1277289431100.4424
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-06-22",
          "window": {
            "start": {
              "local": "2010-06-22T12:09:31+04:30",
              "utc": "2010-06-22T07:39:31Z",
              "ms": 1277192371333.724
            },
            "end": {
              "local": "2010-06-22T12:57:31+04:30",
              "utc": "2010-06-22T08:27:31Z",
              "ms": 1277195251333.724
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-06-23",
          "window": {
            "start": {
              "local": "2010-06-23T12:09:44+04:30",
              "utc": "2010-06-23T07:39:44Z",
              "ms": 1277278783793.4531
            },
            "end": {
              "local": "2010-06-23T12:57:44+04:30",
              "utc": "2010-06-23T08:27:44Z",
              "ms": 1277281663793.4531
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 15:45 on Tue 22 Jun to 15:07 on Wed 23 Jun.",
          "fact": "2010-06-22T11:14:32Z → 2010-06-23T10:37:11Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 22nd, 12:10–12:58 on the 23rd.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 7767 s"
        },
        {
          "step": "ruling",
          "text": "Śrī Rāma Dvādaśī, Mashhad, 2010: Wednesday 23 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": "2010-06-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śrī Rāma Dvādaśī 2010 falls on Wednesday 23 June. Dvādaśī runs from 15:45 on Tue 22 Jun to 15:07 on Wed 23 Jun and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/pradosha-vrata?on=2010-06-23",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17119,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-06-23T15:07:11+04:30",
          "utc": "2010-06-23T10:37:11Z",
          "ms": 1277289431100.4424
        },
        "end": {
          "local": "2010-06-24T14:56:35+04:30",
          "utc": "2010-06-24T10:26:35Z",
          "ms": 1277375194695.8481
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-23T15:07:11+04:30",
          "utc": "2010-06-23T10:37:11Z",
          "ms": 1277289431100.4424
        },
        "end": {
          "local": "2010-06-24T14:56:35+04:30",
          "utc": "2010-06-24T10:26:35Z",
          "ms": 1277375194695.8481
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-06-23",
          "window": {
            "start": {
              "local": "2010-06-23T19:52:30+04:30",
              "utc": "2010-06-23T15:22:30Z",
              "ms": 1277306549684.5378
            },
            "end": {
              "local": "2010-06-23T21:07:32+04:30",
              "utc": "2010-06-23T16:37:32Z",
              "ms": 1277311051585.5469
            }
          },
          "covered_min": 75,
          "window_min": 75,
          "qualifies": true
        },
        {
          "local_date": "2010-06-24",
          "window": {
            "start": {
              "local": "2010-06-24T19:52:38+04:30",
              "utc": "2010-06-24T15:22:38Z",
              "ms": 1277392958390.3135
            },
            "end": {
              "local": "2010-06-24T21:07:41+04:30",
              "utc": "2010-06-24T16:37:41Z",
              "ms": 1277397461460.7004
            }
          },
          "covered_min": 0,
          "window_min": 75,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 15:07 on Wed 23 Jun to 14:57 on Thu 24 Jun.",
          "fact": "2010-06-23T10:37:11Z → 2010-06-24T10:26:35Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:52–21:08 on the 23rd, 19:53–21:08 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 75 of 75 minutes on the 23rd and 0 of 75 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 17119 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Wednesday 23 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": "2010-06-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Wednesday 23 June. Trayodaśī runs from 15:07 on Wed 23 Jun to 14:57 on Thu 24 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-06-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/2010/vata-savitri-vrata",
      "festival": "vata-savitri-vrata",
      "name": "Vaṭa Sāvitrī Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 13949,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-06-25T15:14:04+04:30",
          "utc": "2010-06-25T10:44:04Z",
          "ms": 1277462643812.401
        },
        "end": {
          "local": "2010-06-26T16:00:22+04:30",
          "utc": "2010-06-26T11:30:22Z",
          "ms": 1277551821669.238
        },
        "month": {
          "amanta": 2,
          "purnimanta": 2,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Jyeṣṭha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-25T15:14:04+04:30",
          "utc": "2010-06-25T10:44:04Z",
          "ms": 1277462643812.401
        },
        "end": {
          "local": "2010-06-26T16:00:22+04:30",
          "utc": "2010-06-26T11:30:22Z",
          "ms": 1277551821669.238
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-06-25",
          "window": {
            "start": {
              "local": "2010-06-25T19:52:45+04:30",
              "utc": "2010-06-25T15:22:45Z",
              "ms": 1277479365447.0725
            },
            "end": {
              "local": "2010-06-25T21:07:50+04:30",
              "utc": "2010-06-25T16:37:50Z",
              "ms": 1277483870095.0417
            }
          },
          "covered_min": 75,
          "window_min": 75,
          "qualifies": true
        },
        {
          "local_date": "2010-06-26",
          "window": {
            "start": {
              "local": "2010-06-26T19:52:51+04:30",
              "utc": "2010-06-26T15:22:51Z",
              "ms": 1277565770840.4824
            },
            "end": {
              "local": "2010-06-26T21:07:57+04:30",
              "utc": "2010-06-26T16:37:57Z",
              "ms": 1277570277472.869
            }
          },
          "covered_min": 0,
          "window_min": 75,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 15:14 on Fri 25 Jun to 16:00 on Sat 26 Jun.",
          "fact": "2010-06-25T10:44:04Z → 2010-06-26T11:30:22Z"
        },
        {
          "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": "Pūrṇimā must be present during pradoṣa. It covers 75 of 75 minutes on the 25th and 0 of 75 on the 26th.",
          "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 13949 s"
        },
        {
          "step": "ruling",
          "text": "Vaṭa Sāvitrī Vrata, Mashhad, 2010: Friday 25 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": "2010-06-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vaṭa Sāvitrī Vrata 2010 falls on Friday 25 June. Pūrṇimā runs from 15:14 on Fri 25 Jun to 16:00 on Sat 26 Jun and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-06-29",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-06-29",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 2867,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-06-29T21:00:12+04:30",
          "utc": "2010-06-29T16:30:12Z",
          "ms": 1277829012395.0383
        },
        "end": {
          "local": "2010-06-30T23:19:46+04:30",
          "utc": "2010-06-30T18:49:46Z",
          "ms": 1277923786437.0288
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-06-29T21:00:12+04:30",
          "utc": "2010-06-29T16:30:12Z",
          "ms": 1277829012395.0383
        },
        "end": {
          "local": "2010-06-30T23:19:46+04:30",
          "utc": "2010-06-30T18:49:46Z",
          "ms": 1277923786437.0288
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-06-29",
          "window": {
            "start": {
              "local": "2010-06-29T21:47:59+04:30",
              "utc": "2010-06-29T17:17:59Z",
              "ms": 1277831879294.99
            },
            "end": {
              "local": "2010-06-29T21:47:59+04:30",
              "utc": "2010-06-29T17:17:59Z",
              "ms": 1277831879294.99
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-06-30",
          "window": {
            "start": {
              "local": "2010-06-30T22:15:29+04:30",
              "utc": "2010-06-30T17:45:29Z",
              "ms": 1277919928907.32
            },
            "end": {
              "local": "2010-06-30T22:15:29+04:30",
              "utc": "2010-06-30T17:45:29Z",
              "ms": 1277919928907.32
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 21:00 on Tue 29 Jun to 23:20 on Wed 30 Jun.",
          "fact": "2010-06-29T16:30:12Z → 2010-06-30T18:49:46Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:48 on the 29th and 22:15 on the 30th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 29th and is on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Both moonrises qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
          "fact": "priority: unstated → greater-coverage · margin 2867 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Tuesday 29 June.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-06-29",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-06-29",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Tuesday 29 June. Caturthī runs from 21:00 on Tue 29 Jun to 23:20 on Wed 30 Jun and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-06-29",
      "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/2010/ekadashi?on=2010-07-08",
      "festival": "ekadashi",
      "name": "Yoginī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 11764,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-07-07T09:06:06+04:30",
          "utc": "2010-07-07T04:36:06Z",
          "ms": 1278477366199.688
        },
        "end": {
          "local": "2010-07-08T08:37:21+04:30",
          "utc": "2010-07-08T04:07:21Z",
          "ms": 1278562040891.7485
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-07T09:06:06+04:30",
          "utc": "2010-07-07T04:36:06Z",
          "ms": 1278477366199.688
        },
        "end": {
          "local": "2010-07-08T08:37:21+04:30",
          "utc": "2010-07-08T04:07:21Z",
          "ms": 1278562040891.7485
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-07-07",
          "window": {
            "start": {
              "local": "2010-07-07T05:20:44+04:30",
              "utc": "2010-07-07T00:50:44Z",
              "ms": 1278463843504.3354
            },
            "end": {
              "local": "2010-07-07T05:20:44+04:30",
              "utc": "2010-07-07T00:50:44Z",
              "ms": 1278463843504.3354
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-07-08",
          "window": {
            "start": {
              "local": "2010-07-08T05:21:17+04:30",
              "utc": "2010-07-08T00:51:17Z",
              "ms": 1278550277107.2566
            },
            "end": {
              "local": "2010-07-08T05:21:17+04:30",
              "utc": "2010-07-08T00:51:17Z",
              "ms": 1278550277107.2566
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 09:06 on Wed 7 Jul to 08:37 on Thu 8 Jul.",
          "fact": "2010-07-07T04:36:06Z → 2010-07-08T04:07:21Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:21 on the 7th and 05:21 on the 8th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 7th and is 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 11764 s"
        },
        {
          "step": "ruling",
          "text": "Yoginī Ekādaśī, Mashhad, 2010: Thursday 8 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": "2010-07-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Yoginī Ekādaśī 2010 falls on Thursday 8 July. Ekādaśī runs from 09:06 on Wed 7 Jul to 08:37 on Thu 8 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-07-08",
      "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/2010/pradosha-vrata?on=2010-07-09",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30215,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-07-09T07:24:20+04:30",
          "utc": "2010-07-09T02:54:20Z",
          "ms": 1278644060202.101
        },
        "end": {
          "local": "2010-07-10T05:31:08+04:30",
          "utc": "2010-07-10T01:01:08Z",
          "ms": 1278723668222.129
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-09T07:24:20+04:30",
          "utc": "2010-07-09T02:54:20Z",
          "ms": 1278644060202.101
        },
        "end": {
          "local": "2010-07-10T05:31:08+04:30",
          "utc": "2010-07-10T01:01:08Z",
          "ms": 1278723668222.129
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-07-08",
          "window": {
            "start": {
              "local": "2010-07-08T19:51:42+04:30",
              "utc": "2010-07-08T15:21:42Z",
              "ms": 1278602502081.808
            },
            "end": {
              "local": "2010-07-08T21:07:43+04:30",
              "utc": "2010-07-08T16:37:43Z",
              "ms": 1278607063365.8955
            }
          },
          "covered_min": 0,
          "window_min": 76,
          "qualifies": false
        },
        {
          "local_date": "2010-07-09",
          "window": {
            "start": {
              "local": "2010-07-09T19:51:25+04:30",
              "utc": "2010-07-09T15:21:25Z",
              "ms": 1278688885046.2449
            },
            "end": {
              "local": "2010-07-09T21:07:33+04:30",
              "utc": "2010-07-09T16:37:33Z",
              "ms": 1278693453343.9214
            }
          },
          "covered_min": 76,
          "window_min": 76,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 07:24 on Fri 9 Jul to 05:31 on Sat 10 Jul.",
          "fact": "2010-07-09T02:54:20Z → 2010-07-10T01:01:08Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:52–21:08 on the 8th, 19:51–21:08 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 76 minutes on the 8th and 76 of 76 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 30215 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Friday 9 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": "2010-07-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Friday 9 July. Trayodaśī runs from 07:24 on Fri 9 Jul to 05:31 on Sat 10 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-07-09",
      "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/2010/shivaratri?on=2010-07-10",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7373,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-07-10T05:31:08+04:30",
          "utc": "2010-07-10T01:01:08Z",
          "ms": 1278723668222.129
        },
        "end": {
          "local": "2010-07-11T03:03:58+04:30",
          "utc": "2010-07-10T22:33:58Z",
          "ms": 1278801237744.9854
        },
        "month": {
          "amanta": 2,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Jyeṣṭha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-10T05:31:08+04:30",
          "utc": "2010-07-10T01:01:08Z",
          "ms": 1278723668222.129
        },
        "end": {
          "local": "2010-07-11T03:03:58+04:30",
          "utc": "2010-07-10T22:33:58Z",
          "ms": 1278801237744.9854
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-07-09",
          "window": {
            "start": {
              "local": "2010-07-10T00:12:56+04:30",
              "utc": "2010-07-09T19:42:56Z",
              "ms": 1278704576162.532
            },
            "end": {
              "local": "2010-07-10T01:00:56+04:30",
              "utc": "2010-07-09T20:30:56Z",
              "ms": 1278707456162.532
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-07-10",
          "window": {
            "start": {
              "local": "2010-07-11T00:13:05+04:30",
              "utc": "2010-07-10T19:43:05Z",
              "ms": 1278790985012.649
            },
            "end": {
              "local": "2010-07-11T01:01:05+04:30",
              "utc": "2010-07-10T20:31:05Z",
              "ms": 1278793865012.649
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 05:31 on Sat 10 Jul to 03:04 on Sun 11 Jul.",
          "fact": "2010-07-10T01:01:08Z → 2010-07-10T22:33:58Z"
        },
        {
          "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 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7373 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Saturday 10 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": "2010-07-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Saturday 10 July. Caturdaśī runs from 05:31 on Sat 10 Jul to 03:04 on Sun 11 Jul and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-07-10",
      "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/2010/rathayatra",
      "festival": "rathayatra",
      "name": "Rathayātrā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16654,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2010-07-12T20:59:06+04:30",
          "utc": "2010-07-12T16:29:06Z",
          "ms": 1278952145840.5332
        },
        "end": {
          "local": "2010-07-13T17:38:43+04:30",
          "utc": "2010-07-13T13:08:43Z",
          "ms": 1279026522982.1816
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-12T20:59:06+04:30",
          "utc": "2010-07-12T16:29:06Z",
          "ms": 1278952145840.5332
        },
        "end": {
          "local": "2010-07-13T17:38:43+04:30",
          "utc": "2010-07-13T13:08:43Z",
          "ms": 1279026522982.1816
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-07-12",
          "window": {
            "start": {
              "local": "2010-07-12T12:13:02+04:30",
              "utc": "2010-07-12T07:43:02Z",
              "ms": 1278920582285.538
            },
            "end": {
              "local": "2010-07-12T13:01:02+04:30",
              "utc": "2010-07-12T08:31:02Z",
              "ms": 1278923462285.538
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-07-13",
          "window": {
            "start": {
              "local": "2010-07-13T12:13:09+04:30",
              "utc": "2010-07-13T07:43:09Z",
              "ms": 1279006989367.5693
            },
            "end": {
              "local": "2010-07-13T13:01:09+04:30",
              "utc": "2010-07-13T08:31:09Z",
              "ms": 1279009869367.5693
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 20:59 on Mon 12 Jul to 17:39 on Tue 13 Jul.",
          "fact": "2010-07-12T16:29:06Z → 2010-07-13T13:08:43Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 12th, 12:13–13:01 on the 13th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.",
          "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 16654 s"
        },
        {
          "step": "ruling",
          "text": "Rathayātrā, Mashhad, 2010: Tuesday 13 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": "2010-07-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Rathayātrā 2010 falls on Tuesday 13 July. Dvitīyā runs from 20:59 on Mon 12 Jul to 17:39 on Tue 13 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/skanda-panchami",
      "festival": "skanda-panchami",
      "name": "Skanda Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4054,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2010-07-15T11:05:48+04:30",
          "utc": "2010-07-15T06:35:48Z",
          "ms": 1279175747725.5112
        },
        "end": {
          "local": "2010-07-16T08:09:31+04:30",
          "utc": "2010-07-16T03:39:31Z",
          "ms": 1279251571365.5
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-15T11:05:48+04:30",
          "utc": "2010-07-15T06:35:48Z",
          "ms": 1279175747725.5112
        },
        "end": {
          "local": "2010-07-16T08:09:31+04:30",
          "utc": "2010-07-16T03:39:31Z",
          "ms": 1279251571365.5
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-07-15",
          "window": {
            "start": {
              "local": "2010-07-15T12:13:22+04:30",
              "utc": "2010-07-15T07:43:22Z",
              "ms": 1279179802079.8623
            },
            "end": {
              "local": "2010-07-15T13:01:22+04:30",
              "utc": "2010-07-15T08:31:22Z",
              "ms": 1279182682079.8623
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-07-16",
          "window": {
            "start": {
              "local": "2010-07-16T12:13:28+04:30",
              "utc": "2010-07-16T07:43:28Z",
              "ms": 1279266207674.7612
            },
            "end": {
              "local": "2010-07-16T13:01:28+04:30",
              "utc": "2010-07-16T08:31:28Z",
              "ms": 1279269087674.7612
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 11:06 on Thu 15 Jul to 08:10 on Fri 16 Jul.",
          "fact": "2010-07-15T06:35:48Z → 2010-07-16T03:39:31Z"
        },
        {
          "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": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 4054 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Pañcamī, Mashhad, 2010: Thursday 15 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": "2010-07-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Skanda Pañcamī 2010 falls on Thursday 15 July. Pañcamī runs from 11:06 on Thu 15 Jul to 08:10 on Fri 16 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vinayaka-chaturthi?on=2010-07-15",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4054,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-07-14T14:18:08+04:30",
          "utc": "2010-07-14T09:48:08Z",
          "ms": 1279100887641.1687
        },
        "end": {
          "local": "2010-07-15T11:05:48+04:30",
          "utc": "2010-07-15T06:35:48Z",
          "ms": 1279175747725.5112
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-14T14:18:08+04:30",
          "utc": "2010-07-14T09:48:08Z",
          "ms": 1279100887641.1687
        },
        "end": {
          "local": "2010-07-15T11:05:48+04:30",
          "utc": "2010-07-15T06:35:48Z",
          "ms": 1279175747725.5112
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-07-14",
          "window": {
            "start": {
              "local": "2010-07-14T12:13:16+04:30",
              "utc": "2010-07-14T07:43:16Z",
              "ms": 1279093395971.9038
            },
            "end": {
              "local": "2010-07-14T13:01:16+04:30",
              "utc": "2010-07-14T08:31:16Z",
              "ms": 1279096275971.9038
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-07-15",
          "window": {
            "start": {
              "local": "2010-07-15T12:13:22+04:30",
              "utc": "2010-07-15T07:43:22Z",
              "ms": 1279179802079.8623
            },
            "end": {
              "local": "2010-07-15T13:01:22+04:30",
              "utc": "2010-07-15T08:31:22Z",
              "ms": 1279182682079.8623
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 14:18 on Wed 14 Jul to 11:06 on Thu 15 Jul.",
          "fact": "2010-07-14T09:48:08Z → 2010-07-15T06:35:48Z"
        },
        {
          "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": "Caturthī must be present during madhyāhna. It covers 0 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": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: unstated → second-day · margin 4054 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 2010: Thursday 15 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": "2010-07-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 2010 falls on Thursday 15 July. Caturthī runs from 14:18 on Wed 14 Jul to 11:06 on Thu 15 Jul, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/vinayaka-chaturthi?on=2010-07-15",
      "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/2010/vivasvat-saptami",
      "festival": "vivasvat-saptami",
      "name": "Vivasvat Saptamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 23845,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2010-07-17T05:36:08+04:30",
          "utc": "2010-07-17T01:06:08Z",
          "ms": 1279328767574.0432
        },
        "end": {
          "local": "2010-07-18T03:31:07+04:30",
          "utc": "2010-07-17T23:01:07Z",
          "ms": 1279407666982.9812
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-17T05:36:08+04:30",
          "utc": "2010-07-17T01:06:08Z",
          "ms": 1279328767574.0432
        },
        "end": {
          "local": "2010-07-18T03:31:07+04:30",
          "utc": "2010-07-17T23:01:07Z",
          "ms": 1279407666982.9812
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-07-17",
          "window": {
            "start": {
              "local": "2010-07-17T12:13:33+04:30",
              "utc": "2010-07-17T07:43:33Z",
              "ms": 1279352612742.0789
            },
            "end": {
              "local": "2010-07-17T13:01:33+04:30",
              "utc": "2010-07-17T08:31:33Z",
              "ms": 1279355492742.0789
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-07-18",
          "window": {
            "start": {
              "local": "2010-07-18T12:13:37+04:30",
              "utc": "2010-07-18T07:43:37Z",
              "ms": 1279439017269.3782
            },
            "end": {
              "local": "2010-07-18T13:01:37+04:30",
              "utc": "2010-07-18T08:31:37Z",
              "ms": 1279441897269.3782
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 05:36 on Sat 17 Jul to 03:31 on Sun 18 Jul.",
          "fact": "2010-07-17T01:06:08Z → 2010-07-17T23:01:07Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 17th, 12:14–13:02 on the 18th.",
          "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 17th and 0 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: purvaviddha → only-day · margin 23845 s"
        },
        {
          "step": "ruling",
          "text": "Vivasvat Saptamī, Mashhad, 2010: Saturday 17 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": "2010-07-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vivasvat Saptamī 2010 falls on Saturday 17 July. Saptamī runs from 05:36 on Sat 17 Jul to 03:31 on Sun 18 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-07-21",
      "festival": "ekadashi",
      "name": "Hariśayanī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17006,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-07-21T00:36:50+04:30",
          "utc": "2010-07-20T20:06:50Z",
          "ms": 1279656409518.522
        },
        "end": {
          "local": "2010-07-22T00:47:08+04:30",
          "utc": "2010-07-21T20:17:08Z",
          "ms": 1279743427824.3044
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-21T00:36:50+04:30",
          "utc": "2010-07-20T20:06:50Z",
          "ms": 1279656409518.522
        },
        "end": {
          "local": "2010-07-22T00:47:08+04:30",
          "utc": "2010-07-21T20:17:08Z",
          "ms": 1279743427824.3044
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-07-21",
          "window": {
            "start": {
              "local": "2010-07-21T05:29:50+04:30",
              "utc": "2010-07-21T00:59:50Z",
              "ms": 1279673989803.4312
            },
            "end": {
              "local": "2010-07-21T05:29:50+04:30",
              "utc": "2010-07-21T00:59:50Z",
              "ms": 1279673989803.4312
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-07-22",
          "window": {
            "start": {
              "local": "2010-07-22T05:30:34+04:30",
              "utc": "2010-07-22T01:00:34Z",
              "ms": 1279760433679.811
            },
            "end": {
              "local": "2010-07-22T05:30:34+04:30",
              "utc": "2010-07-22T01:00:34Z",
              "ms": 1279760433679.811
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 00:37 on Wed 21 Jul to 00:47 on Thu 22 Jul.",
          "fact": "2010-07-20T20:06:50Z → 2010-07-21T20:17:08Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:30 on the 21st and 05:31 on the 22nd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 21st and is not on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 17006 s"
        },
        {
          "step": "ruling",
          "text": "Hariśayanī Ekādaśī, Mashhad, 2010: Wednesday 21 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": "2010-07-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Hariśayanī Ekādaśī 2010 falls on Wednesday 21 July. Ekādaśī runs from 00:37 on Wed 21 Jul to 00:47 on Thu 22 Jul and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-07-21",
      "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/2010/pradosha-vrata?on=2010-07-23",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-23",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15926,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-07-23T01:28:41+04:30",
          "utc": "2010-07-22T20:58:41Z",
          "ms": 1279832321192.0518
        },
        "end": {
          "local": "2010-07-24T02:38:16+04:30",
          "utc": "2010-07-23T22:08:16Z",
          "ms": 1279922896222.721
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-23T01:28:41+04:30",
          "utc": "2010-07-22T20:58:41Z",
          "ms": 1279832321192.0518
        },
        "end": {
          "local": "2010-07-24T02:38:16+04:30",
          "utc": "2010-07-23T22:08:16Z",
          "ms": 1279922896222.721
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-07-22",
          "window": {
            "start": {
              "local": "2010-07-22T19:45:06+04:30",
              "utc": "2010-07-22T15:15:06Z",
              "ms": 1279811705903.3733
            },
            "end": {
              "local": "2010-07-22T21:03:16+04:30",
              "utc": "2010-07-22T16:33:16Z",
              "ms": 1279816395518.5615
            }
          },
          "covered_min": 0,
          "window_min": 78,
          "qualifies": false
        },
        {
          "local_date": "2010-07-23",
          "window": {
            "start": {
              "local": "2010-07-23T19:44:25+04:30",
              "utc": "2010-07-23T15:14:25Z",
              "ms": 1279898064965.7397
            },
            "end": {
              "local": "2010-07-23T21:02:46+04:30",
              "utc": "2010-07-23T16:32:46Z",
              "ms": 1279902766008.585
            }
          },
          "covered_min": 78,
          "window_min": 78,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 01:29 on Fri 23 Jul to 02:38 on Sat 24 Jul.",
          "fact": "2010-07-22T20:58:41Z → 2010-07-23T22:08:16Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:45–21:03 on the 22nd, 19:44–21:03 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 0 of 78 minutes on the 22nd and 78 of 78 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 15926 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Friday 23 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": "2010-07-23",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-23",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Friday 23 July. Trayodaśī runs from 01:29 on Fri 23 Jul to 02:38 on Sat 24 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-07-23",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/2010/vyasa-puja",
      "festival": "vyasa-puja",
      "name": "Vyāsa Pūjā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1979,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-07-25T04:12:13+04:30",
          "utc": "2010-07-24T23:42:13Z",
          "ms": 1280014932542.799
        },
        "end": {
          "local": "2010-07-26T06:06:33+04:30",
          "utc": "2010-07-26T01:36:33Z",
          "ms": 1280108192816.7388
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-25T04:12:13+04:30",
          "utc": "2010-07-24T23:42:13Z",
          "ms": 1280014932542.799
        },
        "end": {
          "local": "2010-07-26T06:06:33+04:30",
          "utc": "2010-07-26T01:36:33Z",
          "ms": 1280108192816.7388
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "2010-07-25",
          "window": {
            "start": {
              "local": "2010-07-25T05:32:48+04:30",
              "utc": "2010-07-25T01:02:48Z",
              "ms": 1280019767961.6287
            },
            "end": {
              "local": "2010-07-25T08:22:50+04:30",
              "utc": "2010-07-25T03:52:50Z",
              "ms": 1280029970034.492
            }
          },
          "covered_min": 170,
          "window_min": 170,
          "qualifies": true
        },
        {
          "local_date": "2010-07-26",
          "window": {
            "start": {
              "local": "2010-07-26T05:33:34+04:30",
              "utc": "2010-07-26T01:03:34Z",
              "ms": 1280106213514.457
            },
            "end": {
              "local": "2010-07-26T08:23:17+04:30",
              "utc": "2010-07-26T03:53:17Z",
              "ms": 1280116397345.1707
            }
          },
          "covered_min": 33,
          "window_min": 170,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 04:12 on Sun 25 Jul to 06:07 on Mon 26 Jul.",
          "fact": "2010-07-24T23:42:13Z → 2010-07-26T01:36:33Z"
        },
        {
          "step": "kaala",
          "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:33–08:23 on the 25th, 05:34–08:23 on the 26th.",
          "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 170 of 170 minutes on the 25th and 33 of 170 on the 26th.",
          "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 1979 s"
        },
        {
          "step": "ruling",
          "text": "Vyāsa Pūjā, Mashhad, 2010: Sunday 25 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": "2010-07-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vyāsa Pūjā 2010 falls on Sunday 25 July. Pūrṇimā runs from 04:12 on Sun 25 Jul to 06:07 on Mon 26 Jul and covers all of the first three muhūrtas after sunrise that morning.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/guru-purnima",
      "festival": "guru-purnima",
      "name": "Guru Pūrṇimā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22040,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-07-25T04:12:13+04:30",
          "utc": "2010-07-24T23:42:13Z",
          "ms": 1280014932542.799
        },
        "end": {
          "local": "2010-07-26T06:06:33+04:30",
          "utc": "2010-07-26T01:36:33Z",
          "ms": 1280108192816.7388
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-25T04:12:13+04:30",
          "utc": "2010-07-24T23:42:13Z",
          "ms": 1280014932542.799
        },
        "end": {
          "local": "2010-07-26T06:06:33+04:30",
          "utc": "2010-07-26T01:36:33Z",
          "ms": 1280108192816.7388
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-07-25",
          "window": {
            "start": {
              "local": "2010-07-25T12:13:53+04:30",
              "utc": "2010-07-25T07:43:53Z",
              "ms": 1280043833143.7869
            },
            "end": {
              "local": "2010-07-25T13:01:53+04:30",
              "utc": "2010-07-25T08:31:53Z",
              "ms": 1280046713143.7869
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-07-26",
          "window": {
            "start": {
              "local": "2010-07-26T12:13:53+04:30",
              "utc": "2010-07-26T07:43:53Z",
              "ms": 1280130233091.2407
            },
            "end": {
              "local": "2010-07-26T13:01:53+04:30",
              "utc": "2010-07-26T08:31:53Z",
              "ms": 1280133113091.2407
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 04:12 on Sun 25 Jul to 06:07 on Mon 26 Jul.",
          "fact": "2010-07-24T23:42:13Z → 2010-07-26T01:36:33Z"
        },
        {
          "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": "Pūrṇimā 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: paraviddha → only-day · margin 22040 s"
        },
        {
          "step": "ruling",
          "text": "Guru Pūrṇimā, Mashhad, 2010: Sunday 25 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": "2010-07-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Guru Pūrṇimā 2010 falls on Sunday 25 July. Pūrṇimā runs from 04:12 on Sun 25 Jul to 06:07 on Mon 26 Jul and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/kokila-vrata",
      "festival": "kokila-vrata",
      "name": "Kokilā Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30510,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-07-25T04:12:13+04:30",
          "utc": "2010-07-24T23:42:13Z",
          "ms": 1280014932542.799
        },
        "end": {
          "local": "2010-07-26T06:06:33+04:30",
          "utc": "2010-07-26T01:36:33Z",
          "ms": 1280108192816.7388
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-25T04:12:13+04:30",
          "utc": "2010-07-24T23:42:13Z",
          "ms": 1280014932542.799
        },
        "end": {
          "local": "2010-07-26T06:06:33+04:30",
          "utc": "2010-07-26T01:36:33Z",
          "ms": 1280108192816.7388
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2010-07-24",
          "window": {
            "start": {
              "local": "2010-07-24T16:53:23+04:30",
              "utc": "2010-07-24T12:23:23Z",
              "ms": 1279974202503.5444
            },
            "end": {
              "local": "2010-07-24T19:43:42+04:30",
              "utc": "2010-07-24T15:13:42Z",
              "ms": 1279984422432.6606
            }
          },
          "covered_min": 0,
          "window_min": 170,
          "qualifies": false
        },
        {
          "local_date": "2010-07-25",
          "window": {
            "start": {
              "local": "2010-07-25T16:52:56+04:30",
              "utc": "2010-07-25T12:22:56Z",
              "ms": 1280060576253.0818
            },
            "end": {
              "local": "2010-07-25T19:42:58+04:30",
              "utc": "2010-07-25T15:12:58Z",
              "ms": 1280070778325.945
            }
          },
          "covered_min": 170,
          "window_min": 170,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 04:12 on Sun 25 Jul to 06:07 on Mon 26 Jul.",
          "fact": "2010-07-24T23:42:13Z → 2010-07-26T01:36:33Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:53–19:44 on the 24th, 16:53–19:43 on the 25th.",
          "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 170 minutes on the 24th and 170 of 170 on the 25th.",
          "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 30510 s"
        },
        {
          "step": "ruling",
          "text": "Kokilā Vrata, Mashhad, 2010: Sunday 25 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": "2010-07-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kokilā Vrata 2010 falls on Sunday 25 July. Pūrṇimā runs from 04:12 on Sun 25 Jul to 06:07 on Mon 26 Jul and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/shiva-shayanotsava",
      "festival": "shiva-shayanotsava",
      "name": "Śiva Śayanotsava",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-25",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25797,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-07-25T04:12:13+04:30",
          "utc": "2010-07-24T23:42:13Z",
          "ms": 1280014932542.799
        },
        "end": {
          "local": "2010-07-26T06:06:33+04:30",
          "utc": "2010-07-26T01:36:33Z",
          "ms": 1280108192816.7388
        },
        "month": {
          "amanta": 3,
          "purnimanta": 3,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Āṣāḍha"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-25T04:12:13+04:30",
          "utc": "2010-07-24T23:42:13Z",
          "ms": 1280014932542.799
        },
        "end": {
          "local": "2010-07-26T06:06:33+04:30",
          "utc": "2010-07-26T01:36:33Z",
          "ms": 1280108192816.7388
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-07-24",
          "window": {
            "start": {
              "local": "2010-07-24T19:43:42+04:30",
              "utc": "2010-07-24T15:13:42Z",
              "ms": 1279984422432.6606
            },
            "end": {
              "local": "2010-07-24T21:02:15+04:30",
              "utc": "2010-07-24T16:32:15Z",
              "ms": 1279989135169.8564
            }
          },
          "covered_min": 0,
          "window_min": 79,
          "qualifies": false
        },
        {
          "local_date": "2010-07-25",
          "window": {
            "start": {
              "local": "2010-07-25T19:42:58+04:30",
              "utc": "2010-07-25T15:12:58Z",
              "ms": 1280070778325.945
            },
            "end": {
              "local": "2010-07-25T21:01:43+04:30",
              "utc": "2010-07-25T16:31:43Z",
              "ms": 1280075503017.7466
            }
          },
          "covered_min": 79,
          "window_min": 79,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 04:12 on Sun 25 Jul to 06:07 on Mon 26 Jul.",
          "fact": "2010-07-24T23:42:13Z → 2010-07-26T01:36:33Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:44–21:02 on the 24th, 19:43–21:02 on the 25th.",
          "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 79 minutes on the 24th and 79 of 79 on the 25th.",
          "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 25797 s"
        },
        {
          "step": "ruling",
          "text": "Śiva Śayanotsava, Mashhad, 2010: Sunday 25 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": "2010-07-25",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-25",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śiva Śayanotsava 2010 falls on Sunday 25 July. Pūrṇimā runs from 04:12 on Sun 25 Jul to 06:07 on Mon 26 Jul and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ashunya-shayana-vrata-ashadha",
      "festival": "ashunya-shayana-vrata-ashadha",
      "name": "Aśūnya Śayana Vrata (Āṣāḍha)",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 36364,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2010-07-27T08:16:58+04:30",
          "utc": "2010-07-27T03:46:58Z",
          "ms": 1280202418072.174
        },
        "end": {
          "local": "2010-07-28T10:38:30+04:30",
          "utc": "2010-07-28T06:08:30Z",
          "ms": 1280297310275.5264
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-27T08:16:58+04:30",
          "utc": "2010-07-27T03:46:58Z",
          "ms": 1280202418072.174
        },
        "end": {
          "local": "2010-07-28T10:38:30+04:30",
          "utc": "2010-07-28T06:08:30Z",
          "ms": 1280297310275.5264
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-07-27",
          "window": {
            "start": {
              "local": "2010-07-27T20:18:26+04:30",
              "utc": "2010-07-27T15:48:26Z",
              "ms": 1280245705502.1082
            },
            "end": {
              "local": "2010-07-27T20:18:26+04:30",
              "utc": "2010-07-27T15:48:26Z",
              "ms": 1280245705502.1082
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-07-28",
          "window": {
            "start": {
              "local": "2010-07-28T20:44:34+04:30",
              "utc": "2010-07-28T16:14:34Z",
              "ms": 1280333674336.698
            },
            "end": {
              "local": "2010-07-28T20:44:34+04:30",
              "utc": "2010-07-28T16:14:34Z",
              "ms": 1280333674336.698
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 08:17 on Tue 27 Jul to 10:39 on Wed 28 Jul.",
          "fact": "2010-07-27T03:46:58Z → 2010-07-28T06:08:30Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:18 on the 27th and 20:45 on the 28th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā must be current at moonrise. It is on the 27th and is not on the 28th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 36364 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata (Āṣāḍha), Mashhad, 2010: Tuesday 27 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": "2010-07-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Aśūnya Śayana Vrata (Āṣāḍha) 2010 falls on Tuesday 27 July. Dvitīyā runs from 08:17 on Tue 27 Jul to 10:39 on Wed 28 Jul and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-07-29",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-07-29",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21880,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-07-29T13:05:09+04:30",
          "utc": "2010-07-29T08:35:09Z",
          "ms": 1280392509474.1497
        },
        "end": {
          "local": "2010-07-30T15:29:37+04:30",
          "utc": "2010-07-30T10:59:37Z",
          "ms": 1280487576814.8738
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-07-29T13:05:09+04:30",
          "utc": "2010-07-29T08:35:09Z",
          "ms": 1280392509474.1497
        },
        "end": {
          "local": "2010-07-30T15:29:37+04:30",
          "utc": "2010-07-30T10:59:37Z",
          "ms": 1280487576814.8738
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-07-29",
          "window": {
            "start": {
              "local": "2010-07-29T21:09:30+04:30",
              "utc": "2010-07-29T16:39:30Z",
              "ms": 1280421569559.9355
            },
            "end": {
              "local": "2010-07-29T21:09:30+04:30",
              "utc": "2010-07-29T16:39:30Z",
              "ms": 1280421569559.9355
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-07-30",
          "window": {
            "start": {
              "local": "2010-07-30T21:34:17+04:30",
              "utc": "2010-07-30T17:04:17Z",
              "ms": 1280509456701.1763
            },
            "end": {
              "local": "2010-07-30T21:34:17+04:30",
              "utc": "2010-07-30T17:04:17Z",
              "ms": 1280509456701.1763
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:05 on Thu 29 Jul to 15:30 on Fri 30 Jul.",
          "fact": "2010-07-29T08:35:09Z → 2010-07-30T10:59:37Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:09 on the 29th and 21:34 on the 30th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 29th and is not on the 30th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 21880 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Thursday 29 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": "2010-07-29",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-07-29",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Thursday 29 July. Caturthī runs from 13:05 on Thu 29 Jul to 15:30 on Fri 30 Jul and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-07-29",
      "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/2010/ekadashi?on=2010-08-06",
      "festival": "ekadashi",
      "name": "Kāmikā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31038,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-08-05T21:04:55+04:30",
          "utc": "2010-08-05T16:34:55Z",
          "ms": 1281026094550.3977
        },
        "end": {
          "local": "2010-08-06T19:34:55+04:30",
          "utc": "2010-08-06T15:04:55Z",
          "ms": 1281107094546.5408
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-05T21:04:55+04:30",
          "utc": "2010-08-05T16:34:55Z",
          "ms": 1281026094550.3977
        },
        "end": {
          "local": "2010-08-06T19:34:55+04:30",
          "utc": "2010-08-06T15:04:55Z",
          "ms": 1281107094546.5408
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-08-06",
          "window": {
            "start": {
              "local": "2010-08-06T05:42:13+04:30",
              "utc": "2010-08-06T01:12:13Z",
              "ms": 1281057132745.6562
            },
            "end": {
              "local": "2010-08-06T05:42:13+04:30",
              "utc": "2010-08-06T01:12:13Z",
              "ms": 1281057132745.6562
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-08-07",
          "window": {
            "start": {
              "local": "2010-08-07T05:43:01+04:30",
              "utc": "2010-08-07T01:13:01Z",
              "ms": 1281143581022.06
            },
            "end": {
              "local": "2010-08-07T05:43:01+04:30",
              "utc": "2010-08-07T01:13:01Z",
              "ms": 1281143581022.06
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 21:05 on Thu 5 Aug to 19:35 on Fri 6 Aug.",
          "fact": "2010-08-05T16:34:55Z → 2010-08-06T15:04:55Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:42 on the 6th and 05:43 on the 7th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 6th and is not on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 31038 s"
        },
        {
          "step": "ruling",
          "text": "Kāmikā Ekādaśī, Mashhad, 2010: Friday 6 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": "2010-08-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kāmikā Ekādaśī 2010 falls on Friday 6 August. Ekādaśī runs from 21:05 on Thu 5 Aug to 19:35 on Fri 6 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-08-06",
      "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/2010/pradosha-vrata?on=2010-08-07",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7731,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-08-07T17:22:22+04:30",
          "utc": "2010-08-07T12:52:22Z",
          "ms": 1281185541633.1787
        },
        "end": {
          "local": "2010-08-08T14:33:14+04:30",
          "utc": "2010-08-08T10:03:14Z",
          "ms": 1281261794269.9475
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-07T17:22:22+04:30",
          "utc": "2010-08-07T12:52:22Z",
          "ms": 1281185541633.1787
        },
        "end": {
          "local": "2010-08-08T14:33:14+04:30",
          "utc": "2010-08-08T10:03:14Z",
          "ms": 1281261794269.9475
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-08-07",
          "window": {
            "start": {
              "local": "2010-08-07T19:31:13+04:30",
              "utc": "2010-08-07T15:01:13Z",
              "ms": 1281193272615.265
            },
            "end": {
              "local": "2010-08-07T20:52:54+04:30",
              "utc": "2010-08-07T16:22:54Z",
              "ms": 1281198173517.6792
            }
          },
          "covered_min": 82,
          "window_min": 82,
          "qualifies": true
        },
        {
          "local_date": "2010-08-08",
          "window": {
            "start": {
              "local": "2010-08-08T19:30:09+04:30",
              "utc": "2010-08-08T15:00:09Z",
              "ms": 1281279609036.8337
            },
            "end": {
              "local": "2010-08-08T20:52:05+04:30",
              "utc": "2010-08-08T16:22:05Z",
              "ms": 1281284524872.8716
            }
          },
          "covered_min": 0,
          "window_min": 82,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 17:22 on Sat 7 Aug to 14:33 on Sun 8 Aug.",
          "fact": "2010-08-07T12:52:22Z → 2010-08-08T10:03:14Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:31–20:53 on the 7th, 19:30–20:52 on the 8th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 82 of 82 minutes on the 7th and 0 of 82 on the 8th.",
          "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 7731 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Saturday 7 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": "2010-08-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Saturday 7 August. Trayodaśī runs from 17:22 on Sat 7 Aug to 14:33 on Sun 8 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-08-07",
      "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/2010/shivaratri?on=2010-08-08",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34809,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-08-08T14:33:14+04:30",
          "utc": "2010-08-08T10:03:14Z",
          "ms": 1281261794269.9475
        },
        "end": {
          "local": "2010-08-09T11:15:26+04:30",
          "utc": "2010-08-09T06:45:26Z",
          "ms": 1281336325792.511
        },
        "month": {
          "amanta": 3,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Āṣāḍha",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-08T14:33:14+04:30",
          "utc": "2010-08-08T10:03:14Z",
          "ms": 1281261794269.9475
        },
        "end": {
          "local": "2010-08-09T11:15:26+04:30",
          "utc": "2010-08-09T06:45:26Z",
          "ms": 1281336325792.511
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-08-08",
          "window": {
            "start": {
              "local": "2010-08-09T00:13:23+04:30",
              "utc": "2010-08-08T19:43:23Z",
              "ms": 1281296603421.9758
            },
            "end": {
              "local": "2010-08-09T01:01:23+04:30",
              "utc": "2010-08-08T20:31:23Z",
              "ms": 1281299483421.9758
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-08-09",
          "window": {
            "start": {
              "local": "2010-08-10T00:13:15+04:30",
              "utc": "2010-08-09T19:43:15Z",
              "ms": 1281382995264.4346
            },
            "end": {
              "local": "2010-08-10T01:01:15+04:30",
              "utc": "2010-08-09T20:31:15Z",
              "ms": 1281385875264.4346
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 14:33 on Sun 8 Aug to 11:15 on Mon 9 Aug.",
          "fact": "2010-08-08T10:03:14Z → 2010-08-09T06:45:26Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:13–01:01 on the 8th, 00:13–01:01 on the 9th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 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. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 34809 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Sunday 8 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": "2010-08-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Sunday 8 August. Caturdaśī runs from 14:33 on Sun 8 Aug to 11:15 on Mon 9 Aug and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-08-08",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/2010/madhusrava-tritiya",
      "festival": "madhusrava-tritiya",
      "name": "Madhusravā Tṛtīyā",
      "everyday": "Hariyali Teej",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27061,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2010-08-12T00:05:44+04:30",
          "utc": "2010-08-11T19:35:44Z",
          "ms": 1281555344063.209
        },
        "end": {
          "local": "2010-08-12T20:31:24+04:30",
          "utc": "2010-08-12T16:01:24Z",
          "ms": 1281628884019.8755
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-12T00:05:44+04:30",
          "utc": "2010-08-11T19:35:44Z",
          "ms": 1281555344063.209
        },
        "end": {
          "local": "2010-08-12T20:31:24+04:30",
          "utc": "2010-08-12T16:01:24Z",
          "ms": 1281628884019.8755
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-08-11",
          "window": {
            "start": {
              "local": "2010-08-11T12:12:33+04:30",
              "utc": "2010-08-11T07:42:33Z",
              "ms": 1281512552973.0938
            },
            "end": {
              "local": "2010-08-11T13:00:33+04:30",
              "utc": "2010-08-11T08:30:33Z",
              "ms": 1281515432973.0938
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-08-12",
          "window": {
            "start": {
              "local": "2010-08-12T12:12:23+04:30",
              "utc": "2010-08-12T07:42:23Z",
              "ms": 1281598943093.684
            },
            "end": {
              "local": "2010-08-12T13:00:23+04:30",
              "utc": "2010-08-12T08:30:23Z",
              "ms": 1281601823093.684
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 00:06 on Thu 12 Aug to 20:31 on Thu 12 Aug.",
          "fact": "2010-08-11T19:35:44Z → 2010-08-12T16:01:24Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 11th, 12:12–13:00 on the 12th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 27061 s"
        },
        {
          "step": "ruling",
          "text": "Madhusravā Tṛtīyā, Mashhad, 2010: Thursday 12 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "madhusrava-tritiya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 3 Madhusrava (Gujerat) (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-08-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Madhusravā Tṛtīyā (Hariyali Teej) 2010 falls on Thursday 12 August. Tṛtīyā runs from 00:06 on Thu 12 Aug to 20:31 on Thu 12 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vinayaka-chaturthi?on=2010-08-13",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15490,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-08-12T20:31:24+04:30",
          "utc": "2010-08-12T16:01:24Z",
          "ms": 1281628884019.8755
        },
        "end": {
          "local": "2010-08-13T17:18:23+04:30",
          "utc": "2010-08-13T12:48:23Z",
          "ms": 1281703702612.7637
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-12T20:31:24+04:30",
          "utc": "2010-08-12T16:01:24Z",
          "ms": 1281628884019.8755
        },
        "end": {
          "local": "2010-08-13T17:18:23+04:30",
          "utc": "2010-08-13T12:48:23Z",
          "ms": 1281703702612.7637
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-08-12",
          "window": {
            "start": {
              "local": "2010-08-12T12:12:23+04:30",
              "utc": "2010-08-12T07:42:23Z",
              "ms": 1281598943093.684
            },
            "end": {
              "local": "2010-08-12T13:00:23+04:30",
              "utc": "2010-08-12T08:30:23Z",
              "ms": 1281601823093.684
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-08-13",
          "window": {
            "start": {
              "local": "2010-08-13T12:12:13+04:30",
              "utc": "2010-08-13T07:42:13Z",
              "ms": 1281685332651.3906
            },
            "end": {
              "local": "2010-08-13T13:00:13+04:30",
              "utc": "2010-08-13T08:30:13Z",
              "ms": 1281688212651.3906
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 20:31 on Thu 12 Aug to 17:18 on Fri 13 Aug.",
          "fact": "2010-08-12T16:01:24Z → 2010-08-13T12:48:23Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 12th, 12:12–13:00 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 15490 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 2010: Friday 13 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-08-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 2010 falls on Friday 13 August. Caturthī runs from 20:31 on Thu 12 Aug to 17:18 on Fri 13 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/vinayaka-chaturthi?on=2010-08-13",
      "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/2010/naga-panchami",
      "festival": "naga-panchami",
      "name": "Nāga Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5736,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2010-08-13T17:18:23+04:30",
          "utc": "2010-08-13T12:48:23Z",
          "ms": 1281703702612.7637
        },
        "end": {
          "local": "2010-08-14T14:35:37+04:30",
          "utc": "2010-08-14T10:05:37Z",
          "ms": 1281780337320.8494
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-13T17:18:23+04:30",
          "utc": "2010-08-13T12:48:23Z",
          "ms": 1281703702612.7637
        },
        "end": {
          "local": "2010-08-14T14:35:37+04:30",
          "utc": "2010-08-14T10:05:37Z",
          "ms": 1281780337320.8494
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-08-13",
          "window": {
            "start": {
              "local": "2010-08-13T12:12:13+04:30",
              "utc": "2010-08-13T07:42:13Z",
              "ms": 1281685332651.3906
            },
            "end": {
              "local": "2010-08-13T13:00:13+04:30",
              "utc": "2010-08-13T08:30:13Z",
              "ms": 1281688212651.3906
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-08-14",
          "window": {
            "start": {
              "local": "2010-08-14T12:12:02+04:30",
              "utc": "2010-08-14T07:42:02Z",
              "ms": 1281771721650.9536
            },
            "end": {
              "local": "2010-08-14T13:00:02+04:30",
              "utc": "2010-08-14T08:30:02Z",
              "ms": 1281774601650.9536
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 17:18 on Fri 13 Aug to 14:36 on Sat 14 Aug.",
          "fact": "2010-08-13T12:48:23Z → 2010-08-14T10:05:37Z"
        },
        {
          "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": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 5736 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī, Mashhad, 2010: Saturday 14 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": "2010-08-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Nāga Pañcamī 2010 falls on Saturday 14 August. Pañcamī runs from 17:18 on Fri 13 Aug to 14:36 on Sat 14 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-08-20",
      "festival": "ekadashi",
      "name": "Putradā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20038,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-08-19T11:26:39+04:30",
          "utc": "2010-08-19T06:56:39Z",
          "ms": 1282200999041.409
        },
        "end": {
          "local": "2010-08-20T12:49:16+04:30",
          "utc": "2010-08-20T08:19:16Z",
          "ms": 1282292356186.7668
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-19T11:26:39+04:30",
          "utc": "2010-08-19T06:56:39Z",
          "ms": 1282200999041.409
        },
        "end": {
          "local": "2010-08-20T12:49:16+04:30",
          "utc": "2010-08-20T08:19:16Z",
          "ms": 1282292356186.7668
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-08-19",
          "window": {
            "start": {
              "local": "2010-08-19T05:52:41+04:30",
              "utc": "2010-08-19T01:22:41Z",
              "ms": 1282180961258.9316
            },
            "end": {
              "local": "2010-08-19T05:52:41+04:30",
              "utc": "2010-08-19T01:22:41Z",
              "ms": 1282180961258.9316
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-08-20",
          "window": {
            "start": {
              "local": "2010-08-20T05:53:29+04:30",
              "utc": "2010-08-20T01:23:29Z",
              "ms": 1282267409240.8577
            },
            "end": {
              "local": "2010-08-20T05:53:29+04:30",
              "utc": "2010-08-20T01:23:29Z",
              "ms": 1282267409240.8577
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 11:27 on Thu 19 Aug to 12:49 on Fri 20 Aug.",
          "fact": "2010-08-19T06:56:39Z → 2010-08-20T08:19:16Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:53 on the 19th and 05:53 on the 20th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 19th and is 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 20038 s"
        },
        {
          "step": "ruling",
          "text": "Putradā Ekādaśī, Mashhad, 2010: Friday 20 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": "2010-08-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Putradā Ekādaśī 2010 falls on Friday 20 August. Ekādaśī runs from 11:27 on Thu 19 Aug to 12:49 on Fri 20 Aug and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-08-20",
      "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/2010/damodara-dvadashi",
      "festival": "damodara-dvadashi",
      "name": "Dāmodara Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 568,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2010-08-20T12:49:16+04:30",
          "utc": "2010-08-20T08:19:16Z",
          "ms": 1282292356186.7668
        },
        "end": {
          "local": "2010-08-21T14:38:52+04:30",
          "utc": "2010-08-21T10:08:52Z",
          "ms": 1282385332163.3428
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-20T12:49:16+04:30",
          "utc": "2010-08-20T08:19:16Z",
          "ms": 1282292356186.7668
        },
        "end": {
          "local": "2010-08-21T14:38:52+04:30",
          "utc": "2010-08-21T10:08:52Z",
          "ms": 1282385332163.3428
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-08-20",
          "window": {
            "start": {
              "local": "2010-08-20T12:10:44+04:30",
              "utc": "2010-08-20T07:40:44Z",
              "ms": 1282290044401.014
            },
            "end": {
              "local": "2010-08-20T12:58:44+04:30",
              "utc": "2010-08-20T08:28:44Z",
              "ms": 1282292924401.014
            }
          },
          "covered_min": 9,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-08-21",
          "window": {
            "start": {
              "local": "2010-08-21T12:10:30+04:30",
              "utc": "2010-08-21T07:40:30Z",
              "ms": 1282376429758.515
            },
            "end": {
              "local": "2010-08-21T12:58:30+04:30",
              "utc": "2010-08-21T08:28:30Z",
              "ms": 1282379309758.515
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 12:49 on Fri 20 Aug to 14:39 on Sat 21 Aug.",
          "fact": "2010-08-20T08:19:16Z → 2010-08-21T10:08:52Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:11–12:59 on the 20th, 12:10–12:58 on the 21st.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 9 of 48 minutes on the 20th and 48 of 48 on the 21st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Both middays qualify. Pūrvaviddhā: the first is taken.",
          "fact": "priority: purvaviddha → purvaviddha · margin 568 s"
        },
        {
          "step": "ruling",
          "text": "Dāmodara Dvādaśī, Mashhad, 2010: Friday 20 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": "2010-08-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Dāmodara Dvādaśī 2010 falls on Friday 20 August. Dvādaśī runs from 12:49 on Fri 20 Aug to 14:39 on Sat 21 Aug and covers 9 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/2010/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/2010/pradosha-vrata?on=2010-08-21",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8748,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-08-21T14:38:52+04:30",
          "utc": "2010-08-21T10:08:52Z",
          "ms": 1282385332163.3428
        },
        "end": {
          "local": "2010-08-22T16:47:37+04:30",
          "utc": "2010-08-22T12:17:37Z",
          "ms": 1282479456641.0132
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-21T14:38:52+04:30",
          "utc": "2010-08-21T10:08:52Z",
          "ms": 1282385332163.3428
        },
        "end": {
          "local": "2010-08-22T16:47:37+04:30",
          "utc": "2010-08-22T12:17:37Z",
          "ms": 1282479456641.0132
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-08-21",
          "window": {
            "start": {
              "local": "2010-08-21T19:14:42+04:30",
              "utc": "2010-08-21T14:44:42Z",
              "ms": 1282401882385.4421
            },
            "end": {
              "local": "2010-08-21T20:40:05+04:30",
              "utc": "2010-08-21T16:10:05Z",
              "ms": 1282407005391.4421
            }
          },
          "covered_min": 85,
          "window_min": 85,
          "qualifies": true
        },
        {
          "local_date": "2010-08-22",
          "window": {
            "start": {
              "local": "2010-08-22T19:13:24+04:30",
              "utc": "2010-08-22T14:43:24Z",
              "ms": 1282488204365.0747
            },
            "end": {
              "local": "2010-08-22T20:39:04+04:30",
              "utc": "2010-08-22T16:09:04Z",
              "ms": 1282493344134.806
            }
          },
          "covered_min": 0,
          "window_min": 86,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 14:39 on Sat 21 Aug to 16:48 on Sun 22 Aug.",
          "fact": "2010-08-21T10:08:52Z → 2010-08-22T12:17:37Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 19:15–20:40 on the 21st, 19:13–20:39 on the 22nd.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 85 of 85 minutes on the 21st and 0 of 86 on the 22nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 8748 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Saturday 21 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": "2010-08-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Saturday 21 August. Trayodaśī runs from 14:39 on Sat 21 Aug to 16:48 on Sun 22 Aug and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-08-21",
      "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/2010/raksha-bandhana",
      "festival": "raksha-bandhana",
      "name": "Rakṣā Bandhana",
      "everyday": "Rakhi",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8663,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-08-23T19:08:15+04:30",
          "utc": "2010-08-23T14:38:15Z",
          "ms": 1282574295110.82
        },
        "end": {
          "local": "2010-08-24T21:34:34+04:30",
          "utc": "2010-08-24T17:04:34Z",
          "ms": 1282669473985.6895
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "second-half",
        "start": {
          "local": "2010-08-24T08:21:03+04:30",
          "utc": "2010-08-24T03:51:03Z",
          "ms": 1282621862925.7817
        },
        "end": {
          "local": "2010-08-24T21:34:34+04:30",
          "utc": "2010-08-24T17:04:34Z",
          "ms": 1282669473985.6895
        }
      },
      "kaala": "day",
      "days": [
        {
          "local_date": "2010-08-23",
          "window": {
            "start": {
              "local": "2010-08-23T05:55:53+04:30",
              "utc": "2010-08-23T01:25:53Z",
              "ms": 1282526752638.0588
            },
            "end": {
              "local": "2010-08-24T05:56:40+04:30",
              "utc": "2010-08-24T01:26:40Z",
              "ms": 1282613200256.269
            }
          },
          "covered_min": 0,
          "window_min": 1441,
          "qualifies": false
        },
        {
          "local_date": "2010-08-24",
          "window": {
            "start": {
              "local": "2010-08-24T05:56:40+04:30",
              "utc": "2010-08-24T01:26:40Z",
              "ms": 1282613200256.269
            },
            "end": {
              "local": "2010-08-25T05:57:28+04:30",
              "utc": "2010-08-25T01:27:28Z",
              "ms": 1282699647787.9448
            }
          },
          "covered_min": 794,
          "window_min": 1441,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 19:08 on Mon 23 Aug to 21:35 on Tue 24 Aug. Its second half begins at 08:21 on Tue 24 Aug.",
          "fact": "2010-08-23T14:38:15Z → 2010-08-24T17:04:34Z · second half from 2010-08-24T03:51:03Z"
        },
        {
          "step": "kaala",
          "text": "The day runs from sunrise to the next sunrise: from 05:56 on the 23rd, and from 05:57 on the 24th.",
          "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "The second half of Pūrṇimā must be present during the day. It covers 0 of 1441 minutes on the 23rd and 794 of 1441 on the 24th.",
          "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 8663 s"
        },
        {
          "step": "ruling",
          "text": "Rakṣā Bandhana, Mashhad, 2010: Tuesday 24 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": "2010-08-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Rakṣā Bandhana (Rakhi) 2010 falls on Tuesday 24 August. The second half of Pūrṇimā runs from 08:21 on Tue 24 Aug to 21:35 on Tue 24 Aug and lies within that day, sunrise to sunrise.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/rishi-tarpana",
      "festival": "rishi-tarpana",
      "name": "Ṛṣi Tarpaṇa",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 22216,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-08-23T19:08:15+04:30",
          "utc": "2010-08-23T14:38:15Z",
          "ms": 1282574295110.82
        },
        "end": {
          "local": "2010-08-24T21:34:34+04:30",
          "utc": "2010-08-24T17:04:34Z",
          "ms": 1282669473985.6895
        },
        "month": {
          "amanta": 4,
          "purnimanta": 4,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Śrāvaṇa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-23T19:08:15+04:30",
          "utc": "2010-08-23T14:38:15Z",
          "ms": 1282574295110.82
        },
        "end": {
          "local": "2010-08-24T21:34:34+04:30",
          "utc": "2010-08-24T17:04:34Z",
          "ms": 1282669473985.6895
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-08-23",
          "window": {
            "start": {
              "local": "2010-08-23T12:09:59+04:30",
              "utc": "2010-08-23T07:39:59Z",
              "ms": 1282549199084.2925
            },
            "end": {
              "local": "2010-08-23T12:57:59+04:30",
              "utc": "2010-08-23T08:27:59Z",
              "ms": 1282552079084.2925
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-08-24",
          "window": {
            "start": {
              "local": "2010-08-24T12:09:43+04:30",
              "utc": "2010-08-24T07:39:43Z",
              "ms": 1282635583084.2834
            },
            "end": {
              "local": "2010-08-24T12:57:43+04:30",
              "utc": "2010-08-24T08:27:43Z",
              "ms": 1282638463084.2834
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 19:08 on Mon 23 Aug to 21:35 on Tue 24 Aug.",
          "fact": "2010-08-23T14:38:15Z → 2010-08-24T17:04:34Z"
        },
        {
          "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": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 22216 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Tarpaṇa, Mashhad, 2010: Tuesday 24 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": "2010-08-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ṛṣi Tarpaṇa 2010 falls on Tuesday 24 August. Pūrṇimā runs from 19:08 on Mon 23 Aug to 21:35 on Tue 24 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ashunya-shayana-vrata",
      "festival": "ashunya-shayana-vrata",
      "name": "Aśūnya Śayana Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17228,
      "anga": {
        "type": "tithi",
        "index": 16,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2010-08-26T00:01:15+04:30",
          "utc": "2010-08-25T19:31:15Z",
          "ms": 1282764675357.633
        },
        "end": {
          "local": "2010-08-27T02:23:29+04:30",
          "utc": "2010-08-26T21:53:29Z",
          "ms": 1282859609091.1628
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-26T00:01:15+04:30",
          "utc": "2010-08-25T19:31:15Z",
          "ms": 1282764675357.633
        },
        "end": {
          "local": "2010-08-27T02:23:29+04:30",
          "utc": "2010-08-26T21:53:29Z",
          "ms": 1282859609091.1628
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-08-25",
          "window": {
            "start": {
              "local": "2010-08-25T19:14:08+04:30",
              "utc": "2010-08-25T14:44:08Z",
              "ms": 1282747447826.7056
            },
            "end": {
              "local": "2010-08-25T19:14:08+04:30",
              "utc": "2010-08-25T14:44:08Z",
              "ms": 1282747447826.7056
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-08-26",
          "window": {
            "start": {
              "local": "2010-08-26T19:39:00+04:30",
              "utc": "2010-08-26T15:09:00Z",
              "ms": 1282835340480.2778
            },
            "end": {
              "local": "2010-08-26T19:39:00+04:30",
              "utc": "2010-08-26T15:09:00Z",
              "ms": 1282835340480.2778
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 00:01 on Thu 26 Aug to 02:23 on Fri 27 Aug.",
          "fact": "2010-08-25T19:31:15Z → 2010-08-26T21:53:29Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 19:14 on the 25th and 19:39 on the 26th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Dvitīyā 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. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 17228 s"
        },
        {
          "step": "ruling",
          "text": "Aśūnya Śayana Vrata, Mashhad, 2010: Thursday 26 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": "2010-08-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Aśūnya Śayana Vrata 2010 falls on Thursday 26 August. Dvitīyā runs from 00:01 on Thu 26 Aug to 02:23 on Fri 27 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/kajjali-tritiya",
      "festival": "kajjali-tritiya",
      "name": "Kajjalī Tṛtīyā",
      "everyday": "Kajari Teej",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-27",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 27139,
      "anga": {
        "type": "tithi",
        "index": 17,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2010-08-27T02:23:29+04:30",
          "utc": "2010-08-26T21:53:29Z",
          "ms": 1282859609091.1628
        },
        "end": {
          "local": "2010-08-28T04:36:16+04:30",
          "utc": "2010-08-28T00:06:16Z",
          "ms": 1282953976083.2979
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-27T02:23:29+04:30",
          "utc": "2010-08-26T21:53:29Z",
          "ms": 1282859609091.1628
        },
        "end": {
          "local": "2010-08-28T04:36:16+04:30",
          "utc": "2010-08-28T00:06:16Z",
          "ms": 1282953976083.2979
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-08-27",
          "window": {
            "start": {
              "local": "2010-08-27T12:08:53+04:30",
              "utc": "2010-08-27T07:38:53Z",
              "ms": 1282894732634.248
            },
            "end": {
              "local": "2010-08-27T12:56:53+04:30",
              "utc": "2010-08-27T08:26:53Z",
              "ms": 1282897612634.248
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-08-28",
          "window": {
            "start": {
              "local": "2010-08-28T12:08:35+04:30",
              "utc": "2010-08-28T07:38:35Z",
              "ms": 1282981115059.272
            },
            "end": {
              "local": "2010-08-28T12:56:35+04:30",
              "utc": "2010-08-28T08:26:35Z",
              "ms": 1282983995059.272
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 02:23 on Fri 27 Aug to 04:36 on Sat 28 Aug.",
          "fact": "2010-08-26T21:53:29Z → 2010-08-28T00:06:16Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 27th, 12:09–12:57 on the 28th.",
          "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 27th and 0 of 48 on the 28th.",
          "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 27139 s"
        },
        {
          "step": "ruling",
          "text": "Kajjalī Tṛtīyā, Mashhad, 2010: Friday 27 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": "2010-08-27",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-27",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kajjalī Tṛtīyā (Kajari Teej) 2010 falls on Friday 27 August. Tṛtīyā runs from 02:23 on Fri 27 Aug to 04:36 on Sat 28 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/bahula-chaturthi",
      "festival": "bahula-chaturthi",
      "name": "Bahulā Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34173,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-08-28T04:36:16+04:30",
          "utc": "2010-08-28T00:06:16Z",
          "ms": 1282953976083.2979
        },
        "end": {
          "local": "2010-08-29T06:33:58+04:30",
          "utc": "2010-08-29T02:03:58Z",
          "ms": 1283047438315.565
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-28T04:36:16+04:30",
          "utc": "2010-08-28T00:06:16Z",
          "ms": 1282953976083.2979
        },
        "end": {
          "local": "2010-08-29T06:33:58+04:30",
          "utc": "2010-08-29T02:03:58Z",
          "ms": 1283047438315.565
        }
      },
      "kaala": "sayahna",
      "days": [
        {
          "local_date": "2010-08-27",
          "window": {
            "start": {
              "local": "2010-08-27T16:29:11+04:30",
              "utc": "2010-08-27T11:59:11Z",
              "ms": 1282910350650.2937
            },
            "end": {
              "local": "2010-08-27T19:06:43+04:30",
              "utc": "2010-08-27T14:36:43Z",
              "ms": 1282919802660.991
            }
          },
          "covered_min": 0,
          "window_min": 158,
          "qualifies": false
        },
        {
          "local_date": "2010-08-28",
          "window": {
            "start": {
              "local": "2010-08-28T16:28:14+04:30",
              "utc": "2010-08-28T11:58:14Z",
              "ms": 1282996694151.8103
            },
            "end": {
              "local": "2010-08-28T19:05:20+04:30",
              "utc": "2010-08-28T14:35:20Z",
              "ms": 1283006120213.5024
            }
          },
          "covered_min": 157,
          "window_min": 157,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 04:36 on Sat 28 Aug to 06:34 on Sun 29 Aug.",
          "fact": "2010-08-28T00:06:16Z → 2010-08-29T02:03:58Z"
        },
        {
          "step": "kaala",
          "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:29–19:07 on the 27th, 16:28–19:05 on the 28th.",
          "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 158 minutes on the 27th and 157 of 157 on the 28th.",
          "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 34173 s"
        },
        {
          "step": "ruling",
          "text": "Bahulā Caturthī, Mashhad, 2010: Saturday 28 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": "2010-08-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Bahulā Caturthī 2010 falls on Saturday 28 August. Caturthī runs from 04:36 on Sat 28 Aug to 06:34 on Sun 29 Aug and covers all of sāyāhna that late afternoon.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-08-28",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-28",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 30709,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-08-28T04:36:16+04:30",
          "utc": "2010-08-28T00:06:16Z",
          "ms": 1282953976083.2979
        },
        "end": {
          "local": "2010-08-29T06:33:58+04:30",
          "utc": "2010-08-29T02:03:58Z",
          "ms": 1283047438315.565
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-28T04:36:16+04:30",
          "utc": "2010-08-28T00:06:16Z",
          "ms": 1282953976083.2979
        },
        "end": {
          "local": "2010-08-29T06:33:58+04:30",
          "utc": "2010-08-29T02:03:58Z",
          "ms": 1283047438315.565
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-08-27",
          "window": {
            "start": {
              "local": "2010-08-27T20:04:27+04:30",
              "utc": "2010-08-27T15:34:27Z",
              "ms": 1282923266998.2788
            },
            "end": {
              "local": "2010-08-27T20:04:27+04:30",
              "utc": "2010-08-27T15:34:27Z",
              "ms": 1282923266998.2788
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-08-28",
          "window": {
            "start": {
              "local": "2010-08-28T20:31:34+04:30",
              "utc": "2010-08-28T16:01:34Z",
              "ms": 1283011293537.4812
            },
            "end": {
              "local": "2010-08-28T20:31:34+04:30",
              "utc": "2010-08-28T16:01:34Z",
              "ms": 1283011293537.4812
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 04:36 on Sat 28 Aug to 06:34 on Sun 29 Aug.",
          "fact": "2010-08-28T00:06:16Z → 2010-08-29T02:03:58Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:04 on the 27th and 20:32 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 30709 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Saturday 28 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": "2010-08-28",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Saturday 28 August. Caturthī runs from 04:36 on Sat 28 Aug to 06:34 on Sun 29 Aug and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-08-28",
      "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/2010/hala-shashthi",
      "festival": "hala-shashthi",
      "name": "Hala Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10188,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2010-08-30T08:10:09+04:30",
          "utc": "2010-08-30T03:40:09Z",
          "ms": 1283139609305.0186
        },
        "end": {
          "local": "2010-08-31T09:17:53+04:30",
          "utc": "2010-08-31T04:47:53Z",
          "ms": 1283230072654.3657
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-30T08:10:09+04:30",
          "utc": "2010-08-30T03:40:09Z",
          "ms": 1283139609305.0186
        },
        "end": {
          "local": "2010-08-31T09:17:53+04:30",
          "utc": "2010-08-31T04:47:53Z",
          "ms": 1283230072654.3657
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-08-30",
          "window": {
            "start": {
              "local": "2010-08-30T12:07:59+04:30",
              "utc": "2010-08-30T07:37:59Z",
              "ms": 1283153878879.755
            },
            "end": {
              "local": "2010-08-30T12:55:59+04:30",
              "utc": "2010-08-30T08:25:59Z",
              "ms": 1283156758879.755
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-08-31",
          "window": {
            "start": {
              "local": "2010-08-31T12:07:40+04:30",
              "utc": "2010-08-31T07:37:40Z",
              "ms": 1283240260311.6672
            },
            "end": {
              "local": "2010-08-31T12:55:40+04:30",
              "utc": "2010-08-31T08:25:40Z",
              "ms": 1283243140311.6672
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 08:10 on Mon 30 Aug to 09:18 on Tue 31 Aug.",
          "fact": "2010-08-30T03:40:09Z → 2010-08-31T04:47:53Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 30th, 12:08–12:56 on the 31st.",
          "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 30th and 0 of 48 on the 31st.",
          "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 10188 s"
        },
        {
          "step": "ruling",
          "text": "Hala Ṣaṣṭhī, Mashhad, 2010: Monday 30 August.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "hala-shashthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 6 Hala sasthi (paraviddha)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-08-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Hala Ṣaṣṭhī 2010 falls on Monday 30 August. Ṣaṣṭhī runs from 08:10 on Mon 30 Aug to 09:18 on Tue 31 Aug and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/shitala-saptami",
      "festival": "shitala-saptami",
      "name": "Śītalā Saptamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-08-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8214,
      "anga": {
        "type": "tithi",
        "index": 21,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2010-08-31T09:17:53+04:30",
          "utc": "2010-08-31T04:47:53Z",
          "ms": 1283230072654.3657
        },
        "end": {
          "local": "2010-09-01T09:50:27+04:30",
          "utc": "2010-09-01T05:20:27Z",
          "ms": 1283318426968.3118
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-08-31T09:17:53+04:30",
          "utc": "2010-08-31T04:47:53Z",
          "ms": 1283230072654.3657
        },
        "end": {
          "local": "2010-09-01T09:50:27+04:30",
          "utc": "2010-09-01T05:20:27Z",
          "ms": 1283318426968.3118
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-08-31",
          "window": {
            "start": {
              "local": "2010-08-31T12:07:40+04:30",
              "utc": "2010-08-31T07:37:40Z",
              "ms": 1283240260311.6672
            },
            "end": {
              "local": "2010-08-31T12:55:40+04:30",
              "utc": "2010-08-31T08:25:40Z",
              "ms": 1283243140311.6672
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-09-01",
          "window": {
            "start": {
              "local": "2010-09-01T12:07:21+04:30",
              "utc": "2010-09-01T07:37:21Z",
              "ms": 1283326641449.0662
            },
            "end": {
              "local": "2010-09-01T12:55:21+04:30",
              "utc": "2010-09-01T08:25:21Z",
              "ms": 1283329521449.0662
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 09:18 on Tue 31 Aug to 09:50 on Wed 1 Sep.",
          "fact": "2010-08-31T04:47:53Z → 2010-09-01T05:20:27Z"
        },
        {
          "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": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 8214 s"
        },
        {
          "step": "ruling",
          "text": "Śītalā Saptamī, Mashhad, 2010: Tuesday 31 August.",
          "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": "2010-08-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-08-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śītalā Saptamī 2010 falls on Tuesday 31 August. Saptamī runs from 09:18 on Tue 31 Aug to 09:50 on Wed 1 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/janmashtami",
      "festival": "janmashtami",
      "name": "Janmāṣṭamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31600,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2010-09-01T09:50:27+04:30",
          "utc": "2010-09-01T05:20:27Z",
          "ms": 1283318426968.3118
        },
        "end": {
          "local": "2010-09-02T09:42:25+04:30",
          "utc": "2010-09-02T05:12:25Z",
          "ms": 1283404345226.717
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-01T09:50:27+04:30",
          "utc": "2010-09-01T05:20:27Z",
          "ms": 1283318426968.3118
        },
        "end": {
          "local": "2010-09-02T09:42:25+04:30",
          "utc": "2010-09-02T05:12:25Z",
          "ms": 1283404345226.717
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-08-31",
          "window": {
            "start": {
              "local": "2010-09-01T00:08:04+04:30",
              "utc": "2010-08-31T19:38:04Z",
              "ms": 1283283483843.593
            },
            "end": {
              "local": "2010-09-01T00:56:04+04:30",
              "utc": "2010-08-31T20:26:04Z",
              "ms": 1283286363843.593
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-09-01",
          "window": {
            "start": {
              "local": "2010-09-02T00:07:45+04:30",
              "utc": "2010-09-01T19:37:45Z",
              "ms": 1283369864959.5034
            },
            "end": {
              "local": "2010-09-02T00:55:45+04:30",
              "utc": "2010-09-01T20:25:45Z",
              "ms": 1283372744959.5034
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 09:50 on Wed 1 Sep to 09:42 on Thu 2 Sep.",
          "fact": "2010-09-01T05:20:27Z → 2010-09-02T05:12:25Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:08–00:56 on the 31st, 00:08–00:56 on the 1st.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during niśītha. It covers 0 of 48 minutes on the 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 night qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 31600 s"
        },
        {
          "step": "ruling",
          "text": "Janmāṣṭamī, Mashhad, 2010: Wednesday 1 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": "2010-09-01",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Janmāṣṭamī 2010 falls on Wednesday 1 September. Aṣṭamī runs from 09:50 on Wed 1 Sep to 09:42 on Thu 2 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-09-04",
      "festival": "ekadashi",
      "name": "Ajā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 4135,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-09-04T07:14:14+04:30",
          "utc": "2010-09-04T02:44:14Z",
          "ms": 1283568254256.8733
        },
        "end": {
          "local": "2010-09-05T04:56:04+04:30",
          "utc": "2010-09-05T00:26:04Z",
          "ms": 1283646364003.4998
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-04T07:14:14+04:30",
          "utc": "2010-09-04T02:44:14Z",
          "ms": 1283568254256.8733
        },
        "end": {
          "local": "2010-09-05T04:56:04+04:30",
          "utc": "2010-09-05T00:26:04Z",
          "ms": 1283646364003.4998
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-09-04",
          "window": {
            "start": {
              "local": "2010-09-04T06:05:19+04:30",
              "utc": "2010-09-04T01:35:19Z",
              "ms": 1283564119435.3992
            },
            "end": {
              "local": "2010-09-04T06:05:19+04:30",
              "utc": "2010-09-04T01:35:19Z",
              "ms": 1283564119435.3992
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-09-05",
          "window": {
            "start": {
              "local": "2010-09-05T06:06:06+04:30",
              "utc": "2010-09-05T01:36:06Z",
              "ms": 1283650566357.7986
            },
            "end": {
              "local": "2010-09-05T06:06:06+04:30",
              "utc": "2010-09-05T01:36:06Z",
              "ms": 1283650566357.7986
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 07:14 on Sat 4 Sep to 04:56 on Sun 5 Sep.",
          "fact": "2010-09-04T02:44:14Z → 2010-09-05T00:26:04Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:05 on the 4th and 06:06 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 not on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Neither sunrise qualifies. The day the tithi falls on is taken.",
          "fact": "priority: paraviddha → tithi-day · margin 4135 s"
        },
        {
          "step": "ruling",
          "text": "Ajā Ekādaśī, Mashhad, 2010: Saturday 4 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": "2010-09-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ajā Ekādaśī 2010 falls on Saturday 4 September. Ekādaśī runs from 07:14 on Sat 4 Sep to 04:56 on Sun 5 Sep, and is current at sunrise on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-09-04",
      "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/2010/pradosha-vrata?on=2010-09-06",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8078,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-09-06T02:01:13+04:30",
          "utc": "2010-09-05T21:31:13Z",
          "ms": 1283722273273.704
        },
        "end": {
          "local": "2010-09-06T22:37:12+04:30",
          "utc": "2010-09-06T18:07:12Z",
          "ms": 1283796432454.6216
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-06T02:01:13+04:30",
          "utc": "2010-09-05T21:31:13Z",
          "ms": 1283722273273.704
        },
        "end": {
          "local": "2010-09-06T22:37:12+04:30",
          "utc": "2010-09-06T18:07:12Z",
          "ms": 1283796432454.6216
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-09-05",
          "window": {
            "start": {
              "local": "2010-09-05T18:54:00+04:30",
              "utc": "2010-09-05T14:24:00Z",
              "ms": 1283696640456.503
            },
            "end": {
              "local": "2010-09-05T20:23:43+04:30",
              "utc": "2010-09-05T15:53:43Z",
              "ms": 1283702023496.3257
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        },
        {
          "local_date": "2010-09-06",
          "window": {
            "start": {
              "local": "2010-09-06T18:52:33+04:30",
              "utc": "2010-09-06T14:22:33Z",
              "ms": 1283782953408.4353
            },
            "end": {
              "local": "2010-09-06T20:22:34+04:30",
              "utc": "2010-09-06T15:52:34Z",
              "ms": 1283788354304.6538
            }
          },
          "covered_min": 90,
          "window_min": 90,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 02:01 on Mon 6 Sep to 22:37 on Mon 6 Sep.",
          "fact": "2010-09-05T21:31:13Z → 2010-09-06T18:07:12Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:54–20:24 on the 5th, 18:53–20:23 on the 6th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 90 minutes on the 5th and 90 of 90 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 8078 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Monday 6 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": "2010-09-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Monday 6 September. Trayodaśī runs from 02:01 on Mon 6 Sep to 22:37 on Mon 6 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-09-06",
      "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/2010/shivaratri?on=2010-09-06",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5334,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-09-06T22:37:12+04:30",
          "utc": "2010-09-06T18:07:12Z",
          "ms": 1283796432454.6216
        },
        "end": {
          "local": "2010-09-07T18:53:16+04:30",
          "utc": "2010-09-07T14:23:16Z",
          "ms": 1283869395886.99
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-06T22:37:12+04:30",
          "utc": "2010-09-06T18:07:12Z",
          "ms": 1283796432454.6216
        },
        "end": {
          "local": "2010-09-07T18:53:16+04:30",
          "utc": "2010-09-07T14:23:16Z",
          "ms": 1283869395886.99
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-09-06",
          "window": {
            "start": {
              "local": "2010-09-07T00:06:07+04:30",
              "utc": "2010-09-06T19:36:07Z",
              "ms": 1283801766769.255
            },
            "end": {
              "local": "2010-09-07T00:54:07+04:30",
              "utc": "2010-09-06T20:24:07Z",
              "ms": 1283804646769.255
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-09-07",
          "window": {
            "start": {
              "local": "2010-09-08T00:05:46+04:30",
              "utc": "2010-09-07T19:35:46Z",
              "ms": 1283888146488.0386
            },
            "end": {
              "local": "2010-09-08T00:53:46+04:30",
              "utc": "2010-09-07T20:23:46Z",
              "ms": 1283891026488.0386
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 22:37 on Mon 6 Sep to 18:53 on Tue 7 Sep.",
          "fact": "2010-09-06T18:07:12Z → 2010-09-07T14:23:16Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:06–00:54 on the 6th, 00:06–00:54 on the 7th.",
          "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one night qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 5334 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Monday 6 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": "2010-09-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Monday 6 September. Caturdaśī runs from 22:37 on Mon 6 Sep to 18:53 on Tue 7 Sep and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-09-06",
      "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/2010/aghora-chaturdashi",
      "festival": "aghora-chaturdashi",
      "name": "Aghora Caturdaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-07",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 130,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-09-06T22:37:12+04:30",
          "utc": "2010-09-06T18:07:12Z",
          "ms": 1283796432454.6216
        },
        "end": {
          "local": "2010-09-07T18:53:16+04:30",
          "utc": "2010-09-07T14:23:16Z",
          "ms": 1283869395886.99
        },
        "month": {
          "amanta": 4,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Śrāvaṇa",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-06T22:37:12+04:30",
          "utc": "2010-09-06T18:07:12Z",
          "ms": 1283796432454.6216
        },
        "end": {
          "local": "2010-09-07T18:53:16+04:30",
          "utc": "2010-09-07T14:23:16Z",
          "ms": 1283869395886.99
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-09-06",
          "window": {
            "start": {
              "local": "2010-09-06T18:52:33+04:30",
              "utc": "2010-09-06T14:22:33Z",
              "ms": 1283782953408.4353
            },
            "end": {
              "local": "2010-09-06T20:22:34+04:30",
              "utc": "2010-09-06T15:52:34Z",
              "ms": 1283788354304.6538
            }
          },
          "covered_min": 0,
          "window_min": 90,
          "qualifies": false
        },
        {
          "local_date": "2010-09-07",
          "window": {
            "start": {
              "local": "2010-09-07T18:51:06+04:30",
              "utc": "2010-09-07T14:21:06Z",
              "ms": 1283869265991.4924
            },
            "end": {
              "local": "2010-09-07T20:21:25+04:30",
              "utc": "2010-09-07T15:51:25Z",
              "ms": 1283874684790.5715
            }
          },
          "covered_min": 2,
          "window_min": 90,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 22:37 on Mon 6 Sep to 18:53 on Tue 7 Sep.",
          "fact": "2010-09-06T18:07:12Z → 2010-09-07T14:23:16Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:53–20:23 on the 6th, 18:51–20:21 on the 7th.",
          "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 6th and 2 of 90 on the 7th.",
          "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 130 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Aghora Caturdaśī, Mashhad, 2010: Tuesday 7 September.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2010-09-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-07",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Aghora Caturdaśī 2010 falls on Tuesday 7 September. Caturdaśī runs from 22:37 on Mon 6 Sep to 18:53 on Tue 7 Sep and covers 2 of 90 minutes of pradoṣa that evening. It is 2 min 10 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/rudra-vrata",
      "festival": "rudra-vrata",
      "name": "Rudra Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3401,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2010-09-08T14:59:49+04:30",
          "utc": "2010-09-08T10:29:49Z",
          "ms": 1283941789413.4004
        },
        "end": {
          "local": "2010-09-09T11:08:01+04:30",
          "utc": "2010-09-09T06:38:01Z",
          "ms": 1284014280753.887
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-08T14:59:49+04:30",
          "utc": "2010-09-08T10:29:49Z",
          "ms": 1283941789413.4004
        },
        "end": {
          "local": "2010-09-09T11:08:01+04:30",
          "utc": "2010-09-09T06:38:01Z",
          "ms": 1284014280753.887
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-09-08",
          "window": {
            "start": {
              "local": "2010-09-08T12:05:03+04:30",
              "utc": "2010-09-08T07:35:03Z",
              "ms": 1283931302607.7979
            },
            "end": {
              "local": "2010-09-08T12:53:03+04:30",
              "utc": "2010-09-08T08:23:03Z",
              "ms": 1283934182607.7979
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-09-09",
          "window": {
            "start": {
              "local": "2010-09-09T12:04:42+04:30",
              "utc": "2010-09-09T07:34:42Z",
              "ms": 1284017681986.26
            },
            "end": {
              "local": "2010-09-09T12:52:42+04:30",
              "utc": "2010-09-09T08:22:42Z",
              "ms": 1284020561986.26
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "second-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 15:00 on Wed 8 Sep to 11:08 on Thu 9 Sep.",
          "fact": "2010-09-08T10:29:49Z → 2010-09-09T06:38:01Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 8th, 12:05–12:53 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 0 of 48 minutes on the 8th and 0 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Neither midday qualifies. The rule takes the second day.",
          "fact": "priority: purvaviddha → second-day · margin 3401 s"
        },
        {
          "step": "ruling",
          "text": "Rudra Vrata, Mashhad, 2010: Thursday 9 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": "2010-09-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-09",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Rudra Vrata 2010 falls on Thursday 9 September. Pratipadā runs from 15:00 on Wed 8 Sep to 11:08 on Thu 9 Sep, and reaches madhyāhna on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/haritalika-vrata",
      "festival": "haritalika-vrata",
      "name": "Haritālikā Vrata",
      "everyday": "Hartalika Teej",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 16510,
      "anga": {
        "type": "tithi",
        "index": 2,
        "key": "tritiya",
        "name": "Tṛtīyā",
        "start": {
          "local": "2010-09-10T07:29:11+04:30",
          "utc": "2010-09-10T02:59:11Z",
          "ms": 1284087551301.7717
        },
        "end": {
          "local": "2010-09-11T04:14:26+04:30",
          "utc": "2010-09-10T23:44:26Z",
          "ms": 1284162265760.1814
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-10T07:29:11+04:30",
          "utc": "2010-09-10T02:59:11Z",
          "ms": 1284087551301.7717
        },
        "end": {
          "local": "2010-09-11T04:14:26+04:30",
          "utc": "2010-09-10T23:44:26Z",
          "ms": 1284162265760.1814
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-09-10",
          "window": {
            "start": {
              "local": "2010-09-10T12:04:21+04:30",
              "utc": "2010-09-10T07:34:21Z",
              "ms": 1284104061209.814
            },
            "end": {
              "local": "2010-09-10T12:52:21+04:30",
              "utc": "2010-09-10T08:22:21Z",
              "ms": 1284106941209.814
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-09-11",
          "window": {
            "start": {
              "local": "2010-09-11T12:04:00+04:30",
              "utc": "2010-09-11T07:34:00Z",
              "ms": 1284190440292.8198
            },
            "end": {
              "local": "2010-09-11T12:52:00+04:30",
              "utc": "2010-09-11T08:22:00Z",
              "ms": 1284193320292.8198
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Tṛtīyā runs from 07:29 on Fri 10 Sep to 04:14 on Sat 11 Sep.",
          "fact": "2010-09-10T02:59:11Z → 2010-09-10T23:44:26Z"
        },
        {
          "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": "Tṛtīyā 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: paraviddha → only-day · margin 16510 s"
        },
        {
          "step": "ruling",
          "text": "Haritālikā Vrata, Mashhad, 2010: Friday 10 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": "2010-09-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Haritālikā Vrata (Hartalika Teej) 2010 falls on Friday 10 September. Tṛtīyā runs from 07:29 on Fri 10 Sep to 04:14 on Sat 11 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ganesha-chaturthi",
      "festival": "ganesha-chaturthi",
      "name": "Gaṇeśa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28175,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-09-11T04:14:26+04:30",
          "utc": "2010-09-10T23:44:26Z",
          "ms": 1284162265760.1814
        },
        "end": {
          "local": "2010-09-12T01:33:55+04:30",
          "utc": "2010-09-11T21:03:55Z",
          "ms": 1284239035442.7502
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-11T04:14:26+04:30",
          "utc": "2010-09-10T23:44:26Z",
          "ms": 1284162265760.1814
        },
        "end": {
          "local": "2010-09-12T01:33:55+04:30",
          "utc": "2010-09-11T21:03:55Z",
          "ms": 1284239035442.7502
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-09-11",
          "window": {
            "start": {
              "local": "2010-09-11T12:04:00+04:30",
              "utc": "2010-09-11T07:34:00Z",
              "ms": 1284190440292.8198
            },
            "end": {
              "local": "2010-09-11T12:52:00+04:30",
              "utc": "2010-09-11T08:22:00Z",
              "ms": 1284193320292.8198
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-09-12",
          "window": {
            "start": {
              "local": "2010-09-12T12:03:39+04:30",
              "utc": "2010-09-12T07:33:39Z",
              "ms": 1284276819250.6484
            },
            "end": {
              "local": "2010-09-12T12:51:39+04:30",
              "utc": "2010-09-12T08:21:39Z",
              "ms": 1284279699250.6484
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 04:14 on Sat 11 Sep to 01:34 on Sun 12 Sep.",
          "fact": "2010-09-10T23:44:26Z → 2010-09-11T21:03:55Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 11th, 12:04–12:52 on the 12th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 28175 s"
        },
        {
          "step": "ruling",
          "text": "Gaṇeśa Caturthī, Mashhad, 2010: Saturday 11 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": "2010-09-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Gaṇeśa Caturthī 2010 falls on Saturday 11 September. Caturthī runs from 04:14 on Sat 11 Sep to 01:34 on Sun 12 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/rishi-panchami",
      "festival": "rishi-panchami",
      "name": "Ṛṣi Pañcamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 37784,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2010-09-12T01:33:55+04:30",
          "utc": "2010-09-11T21:03:55Z",
          "ms": 1284239035442.7502
        },
        "end": {
          "local": "2010-09-12T23:36:12+04:30",
          "utc": "2010-09-12T19:06:12Z",
          "ms": 1284318372443.6877
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-12T01:33:55+04:30",
          "utc": "2010-09-11T21:03:55Z",
          "ms": 1284239035442.7502
        },
        "end": {
          "local": "2010-09-12T23:36:12+04:30",
          "utc": "2010-09-12T19:06:12Z",
          "ms": 1284318372443.6877
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-09-12",
          "window": {
            "start": {
              "local": "2010-09-12T12:03:39+04:30",
              "utc": "2010-09-12T07:33:39Z",
              "ms": 1284276819250.6484
            },
            "end": {
              "local": "2010-09-12T12:51:39+04:30",
              "utc": "2010-09-12T08:21:39Z",
              "ms": 1284279699250.6484
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-09-13",
          "window": {
            "start": {
              "local": "2010-09-13T12:03:18+04:30",
              "utc": "2010-09-13T07:33:18Z",
              "ms": 1284363198099.9604
            },
            "end": {
              "local": "2010-09-13T12:51:18+04:30",
              "utc": "2010-09-13T08:21:18Z",
              "ms": 1284366078099.9604
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 01:34 on Sun 12 Sep to 23:36 on Sun 12 Sep.",
          "fact": "2010-09-11T21:03:55Z → 2010-09-12T19:06:12Z"
        },
        {
          "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": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: disputed → only-day · margin 37784 s"
        },
        {
          "step": "ruling",
          "text": "Ṛṣi Pañcamī, Mashhad, 2010: Sunday 12 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": "2010-09-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ṛṣi Pañcamī 2010 falls on Sunday 12 September. Pañcamī runs from 01:34 on Sun 12 Sep to 23:36 on Sun 12 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/surya-shashthi-bhadrapada",
      "festival": "surya-shashthi-bhadrapada",
      "name": "Sūrya Ṣaṣṭhī (Bhādrapada)",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 34558,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2010-09-12T23:36:12+04:30",
          "utc": "2010-09-12T19:06:12Z",
          "ms": 1284318372443.6877
        },
        "end": {
          "local": "2010-09-13T22:27:16+04:30",
          "utc": "2010-09-13T17:57:16Z",
          "ms": 1284400635871.3547
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-12T23:36:12+04:30",
          "utc": "2010-09-12T19:06:12Z",
          "ms": 1284318372443.6877
        },
        "end": {
          "local": "2010-09-13T22:27:16+04:30",
          "utc": "2010-09-13T17:57:16Z",
          "ms": 1284400635871.3547
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-09-12",
          "window": {
            "start": {
              "local": "2010-09-12T12:03:39+04:30",
              "utc": "2010-09-12T07:33:39Z",
              "ms": 1284276819250.6484
            },
            "end": {
              "local": "2010-09-12T12:51:39+04:30",
              "utc": "2010-09-12T08:21:39Z",
              "ms": 1284279699250.6484
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-09-13",
          "window": {
            "start": {
              "local": "2010-09-13T12:03:18+04:30",
              "utc": "2010-09-13T07:33:18Z",
              "ms": 1284363198099.9604
            },
            "end": {
              "local": "2010-09-13T12:51:18+04:30",
              "utc": "2010-09-13T08:21:18Z",
              "ms": 1284366078099.9604
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 23:36 on Sun 12 Sep to 22:27 on Mon 13 Sep.",
          "fact": "2010-09-12T19:06:12Z → 2010-09-13T17:57:16Z"
        },
        {
          "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": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 34558 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Mashhad, 2010: Monday 13 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": "2010-09-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Sūrya Ṣaṣṭhī (Bhādrapada) 2010 falls on Monday 13 September. Ṣaṣṭhī runs from 23:36 on Sun 12 Sep to 22:27 on Mon 13 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/muktabharana-vrata",
      "festival": "muktabharana-vrata",
      "name": "Muktābharaṇa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33521,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2010-09-13T22:27:16+04:30",
          "utc": "2010-09-13T17:57:16Z",
          "ms": 1284400635871.3547
        },
        "end": {
          "local": "2010-09-14T22:09:38+04:30",
          "utc": "2010-09-14T17:39:38Z",
          "ms": 1284485978075.7363
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-13T22:27:16+04:30",
          "utc": "2010-09-13T17:57:16Z",
          "ms": 1284400635871.3547
        },
        "end": {
          "local": "2010-09-14T22:09:38+04:30",
          "utc": "2010-09-14T17:39:38Z",
          "ms": 1284485978075.7363
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-09-13",
          "window": {
            "start": {
              "local": "2010-09-13T12:03:18+04:30",
              "utc": "2010-09-13T07:33:18Z",
              "ms": 1284363198099.9604
            },
            "end": {
              "local": "2010-09-13T12:51:18+04:30",
              "utc": "2010-09-13T08:21:18Z",
              "ms": 1284366078099.9604
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-09-14",
          "window": {
            "start": {
              "local": "2010-09-14T12:02:57+04:30",
              "utc": "2010-09-14T07:32:57Z",
              "ms": 1284449576858.4534
            },
            "end": {
              "local": "2010-09-14T12:50:57+04:30",
              "utc": "2010-09-14T08:20:57Z",
              "ms": 1284452456858.4534
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 22:27 on Mon 13 Sep to 22:10 on Tue 14 Sep.",
          "fact": "2010-09-13T17:57:16Z → 2010-09-14T17:39:38Z"
        },
        {
          "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": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 33521 s"
        },
        {
          "step": "ruling",
          "text": "Muktābharaṇa Vrata, Mashhad, 2010: Tuesday 14 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": "2010-09-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Muktābharaṇa Vrata 2010 falls on Tuesday 14 September. Saptamī runs from 22:27 on Mon 13 Sep to 22:10 on Tue 14 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/radhashtami",
      "festival": "radhashtami",
      "name": "Rādhāṣṭamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33521,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2010-09-14T22:09:38+04:30",
          "utc": "2010-09-14T17:39:38Z",
          "ms": 1284485978075.7363
        },
        "end": {
          "local": "2010-09-15T22:41:46+04:30",
          "utc": "2010-09-15T18:11:46Z",
          "ms": 1284574306456.0571
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-14T22:09:38+04:30",
          "utc": "2010-09-14T17:39:38Z",
          "ms": 1284485978075.7363
        },
        "end": {
          "local": "2010-09-15T22:41:46+04:30",
          "utc": "2010-09-15T18:11:46Z",
          "ms": 1284574306456.0571
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-09-14",
          "window": {
            "start": {
              "local": "2010-09-14T12:02:57+04:30",
              "utc": "2010-09-14T07:32:57Z",
              "ms": 1284449576858.4534
            },
            "end": {
              "local": "2010-09-14T12:50:57+04:30",
              "utc": "2010-09-14T08:20:57Z",
              "ms": 1284452456858.4534
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-09-15",
          "window": {
            "start": {
              "local": "2010-09-15T12:02:36+04:30",
              "utc": "2010-09-15T07:32:36Z",
              "ms": 1284535955545.17
            },
            "end": {
              "local": "2010-09-15T12:50:36+04:30",
              "utc": "2010-09-15T08:20:36Z",
              "ms": 1284538835545.17
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 22:10 on Tue 14 Sep to 22:42 on Wed 15 Sep.",
          "fact": "2010-09-14T17:39:38Z → 2010-09-15T18:11:46Z"
        },
        {
          "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": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 33521 s"
        },
        {
          "step": "ruling",
          "text": "Rādhāṣṭamī, Mashhad, 2010: Wednesday 15 September.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "radhashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini)"
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-09-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Rādhāṣṭamī 2010 falls on Wednesday 15 September. Aṣṭamī runs from 22:10 on Tue 14 Sep to 22:42 on Wed 15 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-09-18",
      "festival": "ekadashi",
      "name": "Parivartanī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7953,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-09-18T01:49:14+04:30",
          "utc": "2010-09-17T21:19:14Z",
          "ms": 1284758354475.502
        },
        "end": {
          "local": "2010-09-19T04:04:29+04:30",
          "utc": "2010-09-18T23:34:29Z",
          "ms": 1284852868999.4685
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-18T01:49:14+04:30",
          "utc": "2010-09-17T21:19:14Z",
          "ms": 1284758354475.502
        },
        "end": {
          "local": "2010-09-19T04:04:29+04:30",
          "utc": "2010-09-18T23:34:29Z",
          "ms": 1284852868999.4685
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-09-18",
          "window": {
            "start": {
              "local": "2010-09-18T06:16:15+04:30",
              "utc": "2010-09-18T01:46:15Z",
              "ms": 1284774375333.77
            },
            "end": {
              "local": "2010-09-18T06:16:15+04:30",
              "utc": "2010-09-18T01:46:15Z",
              "ms": 1284774375333.77
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-09-19",
          "window": {
            "start": {
              "local": "2010-09-19T06:17:02+04:30",
              "utc": "2010-09-19T01:47:02Z",
              "ms": 1284860822330.9255
            },
            "end": {
              "local": "2010-09-19T06:17:02+04:30",
              "utc": "2010-09-19T01:47:02Z",
              "ms": 1284860822330.9255
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 01:49 on Sat 18 Sep to 04:04 on Sun 19 Sep.",
          "fact": "2010-09-17T21:19:14Z → 2010-09-18T23:34:29Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:16 on the 18th and 06:17 on the 19th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 18th and is not on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 7953 s"
        },
        {
          "step": "ruling",
          "text": "Parivartanī Ekādaśī, Mashhad, 2010: Saturday 18 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": "2010-09-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Parivartanī Ekādaśī 2010 falls on Saturday 18 September. Ekādaśī runs from 01:49 on Sat 18 Sep to 04:04 on Sun 19 Sep and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-09-18",
      "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/2010/vamana-jayanti",
      "festival": "vamana-jayanti",
      "name": "Vāmana Jayantī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19695,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2010-09-19T04:04:29+04:30",
          "utc": "2010-09-18T23:34:29Z",
          "ms": 1284852868999.4685
        },
        "end": {
          "local": "2010-09-20T06:32:34+04:30",
          "utc": "2010-09-20T02:02:34Z",
          "ms": 1284948154010.4517
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-19T04:04:29+04:30",
          "utc": "2010-09-18T23:34:29Z",
          "ms": 1284852868999.4685
        },
        "end": {
          "local": "2010-09-20T06:32:34+04:30",
          "utc": "2010-09-20T02:02:34Z",
          "ms": 1284948154010.4517
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-09-19",
          "window": {
            "start": {
              "local": "2010-09-19T12:01:10+04:30",
              "utc": "2010-09-19T07:31:10Z",
              "ms": 1284881469975.3857
            },
            "end": {
              "local": "2010-09-19T12:49:10+04:30",
              "utc": "2010-09-19T08:19:10Z",
              "ms": 1284884349975.3857
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-09-20",
          "window": {
            "start": {
              "local": "2010-09-20T12:00:49+04:30",
              "utc": "2010-09-20T07:30:49Z",
              "ms": 1284967848610.8337
            },
            "end": {
              "local": "2010-09-20T12:48:49+04:30",
              "utc": "2010-09-20T08:18:49Z",
              "ms": 1284970728610.8337
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 04:04 on Sun 19 Sep to 06:33 on Mon 20 Sep.",
          "fact": "2010-09-18T23:34:29Z → 2010-09-20T02:02:34Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:01–12:49 on the 19th, 12:01–12:49 on the 20th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 19695 s"
        },
        {
          "step": "ruling",
          "text": "Vāmana Jayantī, Mashhad, 2010: Sunday 19 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": "2010-09-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-19",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vāmana Jayantī 2010 falls on Sunday 19 September. Dvādaśī runs from 04:04 on Sun 19 Sep to 06:33 on Mon 20 Sep and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/pradosha-vrata?on=2010-09-20",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33996,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-09-20T06:32:34+04:30",
          "utc": "2010-09-20T02:02:34Z",
          "ms": 1284948154010.4517
        },
        "end": {
          "local": "2010-09-21T09:03:42+04:30",
          "utc": "2010-09-21T04:33:42Z",
          "ms": 1285043622293.7202
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-20T06:32:34+04:30",
          "utc": "2010-09-20T02:02:34Z",
          "ms": 1284948154010.4517
        },
        "end": {
          "local": "2010-09-21T09:03:42+04:30",
          "utc": "2010-09-21T04:33:42Z",
          "ms": 1285043622293.7202
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-09-20",
          "window": {
            "start": {
              "local": "2010-09-20T18:31:48+04:30",
              "utc": "2010-09-20T14:01:48Z",
              "ms": 1284991307815.4292
            },
            "end": {
              "local": "2010-09-20T20:06:02+04:30",
              "utc": "2010-09-20T15:36:02Z",
              "ms": 1284996962316.6533
            }
          },
          "covered_min": 94,
          "window_min": 94,
          "qualifies": true
        },
        {
          "local_date": "2010-09-21",
          "window": {
            "start": {
              "local": "2010-09-21T18:30:18+04:30",
              "utc": "2010-09-21T14:00:18Z",
              "ms": 1285077618028.9102
            },
            "end": {
              "local": "2010-09-21T20:04:51+04:30",
              "utc": "2010-09-21T15:34:51Z",
              "ms": 1285083290805.248
            }
          },
          "covered_min": 0,
          "window_min": 95,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 06:33 on Mon 20 Sep to 09:04 on Tue 21 Sep.",
          "fact": "2010-09-20T02:02:34Z → 2010-09-21T04:33:42Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 18:32–20:06 on the 20th, 18:30–20:05 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 94 of 94 minutes on the 20th and 0 of 95 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 33996 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Monday 20 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": "2010-09-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Monday 20 September. Trayodaśī runs from 06:33 on Mon 20 Sep to 09:04 on Tue 21 Sep and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-09-20",
      "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/2010/ananta-chaturdashi",
      "festival": "ananta-chaturdashi",
      "name": "Ananta Caturdaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-22",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1125,
      "anga": {
        "type": "tithi",
        "index": 13,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-09-21T09:03:42+04:30",
          "utc": "2010-09-21T04:33:42Z",
          "ms": 1285043622293.7202
        },
        "end": {
          "local": "2010-09-22T10:30:20+03:30",
          "utc": "2010-09-22T07:00:20Z",
          "ms": 1285138820402.0815
        },
        "month": {
          "amanta": 5,
          "purnimanta": 5,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Bhādrapada"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-21T09:03:42+04:30",
          "utc": "2010-09-21T04:33:42Z",
          "ms": 1285043622293.7202
        },
        "end": {
          "local": "2010-09-22T10:30:20+03:30",
          "utc": "2010-09-22T07:00:20Z",
          "ms": 1285138820402.0815
        }
      },
      "kaala": "udaya-3",
      "days": [
        {
          "local_date": "2010-09-21",
          "window": {
            "start": {
              "local": "2010-09-21T06:18:37+04:30",
              "utc": "2010-09-21T01:48:37Z",
              "ms": 1285033716574.61
            },
            "end": {
              "local": "2010-09-21T08:44:57+04:30",
              "utc": "2010-09-21T04:14:57Z",
              "ms": 1285042496865.4702
            }
          },
          "covered_min": 0,
          "window_min": 146,
          "qualifies": false
        },
        {
          "local_date": "2010-09-22",
          "window": {
            "start": {
              "local": "2010-09-22T05:19:24+03:30",
              "utc": "2010-09-22T01:49:24Z",
              "ms": 1285120163851.445
            },
            "end": {
              "local": "2010-09-22T07:45:17+03:30",
              "utc": "2010-09-22T04:15:17Z",
              "ms": 1285128916739.269
            }
          },
          "covered_min": 146,
          "window_min": 146,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 09:04 on Tue 21 Sep to 10:30 on Wed 22 Sep.",
          "fact": "2010-09-21T04:33:42Z → 2010-09-22T07:00:20Z"
        },
        {
          "step": "kaala",
          "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:19–08:45 on the 21st, 05:19–07:45 on the 22nd.",
          "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 21st and 146 of 146 on the 22nd.",
          "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 1125 s"
        },
        {
          "step": "ruling",
          "text": "Ananta Caturdaśī, Mashhad, 2010: Wednesday 22 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": "2010-09-22",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-22",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ananta Caturdaśī 2010 falls on Wednesday 22 September. Caturdaśī runs from 09:04 on Tue 21 Sep to 10:30 on Wed 22 Sep and covers all of the first three muhūrtas after sunrise that morning.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-09-26",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-26",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 68,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-09-26T18:07:45+03:30",
          "utc": "2010-09-26T14:37:45Z",
          "ms": 1285511864683.323
        },
        "end": {
          "local": "2010-09-27T19:15:18+03:30",
          "utc": "2010-09-27T15:45:18Z",
          "ms": 1285602317664.7566
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-26T18:07:45+03:30",
          "utc": "2010-09-26T14:37:45Z",
          "ms": 1285511864683.323
        },
        "end": {
          "local": "2010-09-27T19:15:18+03:30",
          "utc": "2010-09-27T15:45:18Z",
          "ms": 1285602317664.7566
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-09-26",
          "window": {
            "start": {
              "local": "2010-09-26T18:38:12+03:30",
              "utc": "2010-09-26T15:08:12Z",
              "ms": 1285513692340.946
            },
            "end": {
              "local": "2010-09-26T18:38:12+03:30",
              "utc": "2010-09-26T15:08:12Z",
              "ms": 1285513692340.946
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-09-27",
          "window": {
            "start": {
              "local": "2010-09-27T19:16:26+03:30",
              "utc": "2010-09-27T15:46:26Z",
              "ms": 1285602385946.9512
            },
            "end": {
              "local": "2010-09-27T19:16:26+03:30",
              "utc": "2010-09-27T15:46:26Z",
              "ms": 1285602385946.9512
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 18:08 on Sun 26 Sep to 19:15 on Mon 27 Sep.",
          "fact": "2010-09-26T14:37:45Z → 2010-09-27T15:45:18Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 18:38 on the 26th and 19:16 on the 27th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 26th and is not on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 68 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Sunday 26 September.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2010-09-26",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-26",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Sunday 26 September. Caturthī runs from 18:08 on Sun 26 Sep to 19:15 on Mon 27 Sep and is current at moonrise that day. It is 1 min 08 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-09-26",
      "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/2010/chandra-shashthi",
      "festival": "chandra-shashthi",
      "name": "Candra Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-28",
      "confidence": "boundary",
      "boundary_reasons": [
        "margin"
      ],
      "boundary_margin_s": 231,
      "anga": {
        "type": "tithi",
        "index": 20,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2010-09-28T19:57:14+03:30",
          "utc": "2010-09-28T16:27:14Z",
          "ms": 1285691234090.6582
        },
        "end": {
          "local": "2010-09-29T20:09:11+03:30",
          "utc": "2010-09-29T16:39:11Z",
          "ms": 1285778350659.409
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-28T19:57:14+03:30",
          "utc": "2010-09-28T16:27:14Z",
          "ms": 1285691234090.6582
        },
        "end": {
          "local": "2010-09-29T20:09:11+03:30",
          "utc": "2010-09-29T16:39:11Z",
          "ms": 1285778350659.409
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-09-28",
          "window": {
            "start": {
              "local": "2010-09-28T20:01:05+03:30",
              "utc": "2010-09-28T16:31:05Z",
              "ms": 1285691465463.1458
            },
            "end": {
              "local": "2010-09-28T20:01:05+03:30",
              "utc": "2010-09-28T16:31:05Z",
              "ms": 1285691465463.1458
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-09-29",
          "window": {
            "start": {
              "local": "2010-09-29T20:53:00+03:30",
              "utc": "2010-09-29T17:23:00Z",
              "ms": 1285780979987.4827
            },
            "end": {
              "local": "2010-09-29T20:53:00+03:30",
              "utc": "2010-09-29T17:23:00Z",
              "ms": 1285780979987.4827
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 19:57 on Tue 28 Sep to 20:09 on Wed 29 Sep.",
          "fact": "2010-09-28T16:27:14Z → 2010-09-29T16:39:11Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 20:01 on the 28th and 20:53 on the 29th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Ṣaṣṭhī must be current at moonrise. It is on the 28th and is not on the 29th.",
          "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 231 s < 300 s"
        },
        {
          "step": "ruling",
          "text": "Candra Ṣaṣṭhī, Mashhad, 2010: Tuesday 28 September.",
          "fact": "confidence: boundary (margin)"
        }
      ],
      "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": "2010-09-28",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-28",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Candra Ṣaṣṭhī 2010 falls on Tuesday 28 September. Ṣaṣṭhī runs from 19:57 on Tue 28 Sep to 20:09 on Wed 29 Sep and is current at moonrise that day. It is 3 min 51 s from a threshold: treat the date as contested.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/mahalakshmi-vrata-samapana",
      "festival": "mahalakshmi-vrata-samapana",
      "name": "Mahālakṣmī Vrata Samāpana",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-09-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7502,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2010-09-30T19:47:00+03:30",
          "utc": "2010-09-30T16:17:00Z",
          "ms": 1285863419988.418
        },
        "end": {
          "local": "2010-10-01T18:47:45+03:30",
          "utc": "2010-10-01T15:17:45Z",
          "ms": 1285946264582.359
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-30T19:47:00+03:30",
          "utc": "2010-09-30T16:17:00Z",
          "ms": 1285863419988.418
        },
        "end": {
          "local": "2010-10-01T18:47:45+03:30",
          "utc": "2010-10-01T15:17:45Z",
          "ms": 1285946264582.359
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-09-30",
          "window": {
            "start": {
              "local": "2010-09-30T21:52:02+03:30",
              "utc": "2010-09-30T18:22:02Z",
              "ms": 1285870922468.985
            },
            "end": {
              "local": "2010-09-30T21:52:02+03:30",
              "utc": "2010-09-30T18:22:02Z",
              "ms": 1285870922468.985
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-10-01",
          "window": {
            "start": {
              "local": "2010-10-01T22:56:59+03:30",
              "utc": "2010-10-01T19:26:59Z",
              "ms": 1285961218765.2515
            },
            "end": {
              "local": "2010-10-01T22:56:59+03:30",
              "utc": "2010-10-01T19:26:59Z",
              "ms": 1285961218765.2515
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 19:47 on Thu 30 Sep to 18:48 on Fri 1 Oct.",
          "fact": "2010-09-30T16:17:00Z → 2010-10-01T15:17:45Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:52 on the 30th and 22:57 on the 1st.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be current at moonrise. It is on the 30th and is not on the 1st.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 7502 s"
        },
        {
          "step": "ruling",
          "text": "Mahālakṣmī Vrata Samāpana, Mashhad, 2010: Thursday 30 September.",
          "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": "2010-09-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-09-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mahālakṣmī Vrata Samāpana 2010 falls on Thursday 30 September. Aṣṭamī runs from 19:47 on Thu 30 Sep to 18:48 on Fri 1 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/jitashtami",
      "festival": "jitashtami",
      "name": "Jitāṣṭamī",
      "everyday": "Jitiya",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 319,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2010-09-30T19:47:00+03:30",
          "utc": "2010-09-30T16:17:00Z",
          "ms": 1285863419988.418
        },
        "end": {
          "local": "2010-10-01T18:47:45+03:30",
          "utc": "2010-10-01T15:17:45Z",
          "ms": 1285946264582.359
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-09-30T19:47:00+03:30",
          "utc": "2010-09-30T16:17:00Z",
          "ms": 1285863419988.418
        },
        "end": {
          "local": "2010-10-01T18:47:45+03:30",
          "utc": "2010-10-01T15:17:45Z",
          "ms": 1285946264582.359
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-09-30",
          "window": {
            "start": {
              "local": "2010-09-30T17:16:56+03:30",
              "utc": "2010-09-30T13:46:56Z",
              "ms": 1285854415813.5798
            },
            "end": {
              "local": "2010-09-30T18:54:13+03:30",
              "utc": "2010-09-30T15:24:13Z",
              "ms": 1285860253283.9812
            }
          },
          "covered_min": 0,
          "window_min": 97,
          "qualifies": false
        },
        {
          "local_date": "2010-10-01",
          "window": {
            "start": {
              "local": "2010-10-01T17:15:28+03:30",
              "utc": "2010-10-01T13:45:28Z",
              "ms": 1285940727901.1248
            },
            "end": {
              "local": "2010-10-01T18:53:04+03:30",
              "utc": "2010-10-01T15:23:04Z",
              "ms": 1285946583655.7483
            }
          },
          "covered_min": 92,
          "window_min": 98,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 19:47 on Thu 30 Sep to 18:48 on Fri 1 Oct.",
          "fact": "2010-09-30T16:17:00Z → 2010-10-01T15:17:45Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:17–18:54 on the 30th, 17:15–18:53 on the 1st.",
          "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 30th and 92 of 98 on the 1st.",
          "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 319 s"
        },
        {
          "step": "ruling",
          "text": "Jitāṣṭamī, Mashhad, 2010: Friday 1 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "jitashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja"
          }
        ],
        "kaala": "pradosha",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-10-01",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-01",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Jitāṣṭamī (Jitiya) 2010 falls on Friday 1 October. Aṣṭamī runs from 19:47 on Thu 30 Sep to 18:48 on Fri 1 Oct and covers 92 of 98 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-10-04",
      "festival": "ekadashi",
      "name": "Indirā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24063,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-10-03T14:56:32+03:30",
          "utc": "2010-10-03T11:26:32Z",
          "ms": 1286105191737.463
        },
        "end": {
          "local": "2010-10-04T12:10:08+03:30",
          "utc": "2010-10-04T08:40:08Z",
          "ms": 1286181608143.26
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-03T14:56:32+03:30",
          "utc": "2010-10-03T11:26:32Z",
          "ms": 1286105191737.463
        },
        "end": {
          "local": "2010-10-04T12:10:08+03:30",
          "utc": "2010-10-04T08:40:08Z",
          "ms": 1286181608143.26
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-10-03",
          "window": {
            "start": {
              "local": "2010-10-03T05:28:16+03:30",
              "utc": "2010-10-03T01:58:16Z",
              "ms": 1286071095548.219
            },
            "end": {
              "local": "2010-10-03T05:28:16+03:30",
              "utc": "2010-10-03T01:58:16Z",
              "ms": 1286071095548.219
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-10-04",
          "window": {
            "start": {
              "local": "2010-10-04T05:29:05+03:30",
              "utc": "2010-10-04T01:59:05Z",
              "ms": 1286157545312.6934
            },
            "end": {
              "local": "2010-10-04T05:29:05+03:30",
              "utc": "2010-10-04T01:59:05Z",
              "ms": 1286157545312.6934
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 14:57 on Sun 3 Oct to 12:10 on Mon 4 Oct.",
          "fact": "2010-10-03T11:26:32Z → 2010-10-04T08:40:08Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:28 on the 3rd and 05:29 on the 4th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 3rd and is 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 24063 s"
        },
        {
          "step": "ruling",
          "text": "Indirā Ekādaśī, Mashhad, 2010: Monday 4 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": "2010-10-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Indirā Ekādaśī 2010 falls on Monday 4 October. Ekādaśī runs from 14:57 on Sun 3 Oct to 12:10 on Mon 4 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-10-04",
      "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/2010/pradosha-vrata?on=2010-10-05",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29519,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-10-05T08:57:41+03:30",
          "utc": "2010-10-05T05:27:41Z",
          "ms": 1286256460960.1482
        },
        "end": {
          "local": "2010-10-06T05:27:33+03:30",
          "utc": "2010-10-06T01:57:33Z",
          "ms": 1286330253100.814
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-05T08:57:41+03:30",
          "utc": "2010-10-05T05:27:41Z",
          "ms": 1286256460960.1482
        },
        "end": {
          "local": "2010-10-06T05:27:33+03:30",
          "utc": "2010-10-06T01:57:33Z",
          "ms": 1286330253100.814
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-10-05",
          "window": {
            "start": {
              "local": "2010-10-05T17:09:40+03:30",
              "utc": "2010-10-05T13:39:40Z",
              "ms": 1286285980146.9575
            },
            "end": {
              "local": "2010-10-05T18:48:29+03:30",
              "utc": "2010-10-05T15:18:29Z",
              "ms": 1286291908887.3992
            }
          },
          "covered_min": 99,
          "window_min": 99,
          "qualifies": true
        },
        {
          "local_date": "2010-10-06",
          "window": {
            "start": {
              "local": "2010-10-06T17:08:14+03:30",
              "utc": "2010-10-06T13:38:14Z",
              "ms": 1286372294328.8804
            },
            "end": {
              "local": "2010-10-06T18:47:21+03:30",
              "utc": "2010-10-06T15:17:21Z",
              "ms": 1286378241262.8184
            }
          },
          "covered_min": 0,
          "window_min": 99,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 08:58 on Tue 5 Oct to 05:28 on Wed 6 Oct.",
          "fact": "2010-10-05T05:27:41Z → 2010-10-06T01:57:33Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 17:10–18:48 on the 5th, 17:08–18:47 on the 6th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 99 of 99 minutes on the 5th and 0 of 99 on the 6th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29519 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Tuesday 5 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": "2010-10-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Tuesday 5 October. Trayodaśī runs from 08:58 on Tue 5 Oct to 05:28 on Wed 6 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-10-05",
      "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/2010/shivaratri?on=2010-10-06",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7539,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-10-06T05:27:33+03:30",
          "utc": "2010-10-06T01:57:33Z",
          "ms": 1286330253100.814
        },
        "end": {
          "local": "2010-10-07T01:49:34+03:30",
          "utc": "2010-10-06T22:19:34Z",
          "ms": 1286403573934.2725
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-06T05:27:33+03:30",
          "utc": "2010-10-06T01:57:33Z",
          "ms": 1286330253100.814
        },
        "end": {
          "local": "2010-10-07T01:49:34+03:30",
          "utc": "2010-10-06T22:19:34Z",
          "ms": 1286403573934.2725
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-10-05",
          "window": {
            "start": {
              "local": "2010-10-05T22:56:13+03:30",
              "utc": "2010-10-05T19:26:13Z",
              "ms": 1286306772923.6135
            },
            "end": {
              "local": "2010-10-05T23:44:13+03:30",
              "utc": "2010-10-05T20:14:13Z",
              "ms": 1286309652923.6135
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-10-06",
          "window": {
            "start": {
              "local": "2010-10-06T22:55:55+03:30",
              "utc": "2010-10-06T19:25:55Z",
              "ms": 1286393155331.148
            },
            "end": {
              "local": "2010-10-06T23:43:55+03:30",
              "utc": "2010-10-06T20:13:55Z",
              "ms": 1286396035331.148
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 05:28 on Wed 6 Oct to 01:50 on Thu 7 Oct.",
          "fact": "2010-10-06T01:57:33Z → 2010-10-06T22:19:34Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:56–23:44 on the 5th, 22:56–23:44 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 7539 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Wednesday 6 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": "2010-10-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Wednesday 6 October. Caturdaśī runs from 05:28 on Wed 6 Oct to 01:50 on Thu 7 Oct and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-10-06",
      "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/2010/mahalaya-amavasya",
      "festival": "mahalaya-amavasya",
      "name": "Mahālaya Amāvāsyā",
      "everyday": "Sarvapitṛ Amāvāsyā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26802,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "2010-10-07T01:49:34+03:30",
          "utc": "2010-10-06T22:19:34Z",
          "ms": 1286403573934.2725
        },
        "end": {
          "local": "2010-10-07T22:14:29+03:30",
          "utc": "2010-10-07T18:44:29Z",
          "ms": 1286477068669.71
        },
        "month": {
          "amanta": 5,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Bhādrapada",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-07T01:49:34+03:30",
          "utc": "2010-10-06T22:19:34Z",
          "ms": 1286403573934.2725
        },
        "end": {
          "local": "2010-10-07T22:14:29+03:30",
          "utc": "2010-10-07T18:44:29Z",
          "ms": 1286477068669.71
        }
      },
      "kaala": "aparahna",
      "days": [
        {
          "local_date": "2010-10-06",
          "window": {
            "start": {
              "local": "2010-10-06T12:29:15+03:30",
              "utc": "2010-10-06T08:59:15Z",
              "ms": 1286355554877.436
            },
            "end": {
              "local": "2010-10-06T14:48:45+03:30",
              "utc": "2010-10-06T11:18:45Z",
              "ms": 1286363924603.1582
            }
          },
          "covered_min": 0,
          "window_min": 139,
          "qualifies": false
        },
        {
          "local_date": "2010-10-07",
          "window": {
            "start": {
              "local": "2010-10-07T12:28:44+03:30",
              "utc": "2010-10-07T08:58:44Z",
              "ms": 1286441923941.9373
            },
            "end": {
              "local": "2010-10-07T14:47:46+03:30",
              "utc": "2010-10-07T11:17:46Z",
              "ms": 1286450266478.111
            }
          },
          "covered_min": 139,
          "window_min": 139,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 01:50 on Thu 7 Oct to 22:14 on Thu 7 Oct.",
          "fact": "2010-10-06T22:19:34Z → 2010-10-07T18:44:29Z"
        },
        {
          "step": "kaala",
          "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 12:29–14:49 on the 6th, 12:29–14:48 on the 7th.",
          "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Amāvasyā must be present during aparāhṇa. It covers 0 of 139 minutes on the 6th and 139 of 139 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103"
        },
        {
          "step": "tie_break",
          "text": "Only one afternoon qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 26802 s"
        },
        {
          "step": "ruling",
          "text": "Mahālaya Amāvāsyā, Mashhad, 2010: Thursday 7 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "mahalaya-amavasya",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 103",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 30 Mahalaya amavasya (aparahnavyapini)"
          }
        ],
        "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.",
        "kaala": "aparahna",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-10-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mahālaya Amāvāsyā 2010 falls on Thursday 7 October. Amāvasyā runs from 01:50 on Thu 7 Oct to 22:14 on Thu 7 Oct and covers all of aparāhṇa that afternoon.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/navaratra-arambha",
      "festival": "navaratra-arambha",
      "name": "Navarātrārambha",
      "everyday": "Navratri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-08",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25832,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2010-10-07T22:14:29+03:30",
          "utc": "2010-10-07T18:44:29Z",
          "ms": 1286477068669.71
        },
        "end": {
          "local": "2010-10-08T18:53:28+03:30",
          "utc": "2010-10-08T15:23:28Z",
          "ms": 1286551407614.9736
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-07T22:14:29+03:30",
          "utc": "2010-10-07T18:44:29Z",
          "ms": 1286477068669.71
        },
        "end": {
          "local": "2010-10-08T18:53:28+03:30",
          "utc": "2010-10-08T15:23:28Z",
          "ms": 1286551407614.9736
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-10-07",
          "window": {
            "start": {
              "local": "2010-10-07T10:55:13+03:30",
              "utc": "2010-10-07T07:25:13Z",
              "ms": 1286436312673.8503
            },
            "end": {
              "local": "2010-10-07T11:43:13+03:30",
              "utc": "2010-10-07T08:13:13Z",
              "ms": 1286439192673.8503
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-10-08",
          "window": {
            "start": {
              "local": "2010-10-08T10:54:56+03:30",
              "utc": "2010-10-08T07:24:56Z",
              "ms": 1286522695746.849
            },
            "end": {
              "local": "2010-10-08T11:42:56+03:30",
              "utc": "2010-10-08T08:12:56Z",
              "ms": 1286525575746.849
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 22:14 on Thu 7 Oct to 18:53 on Fri 8 Oct.",
          "fact": "2010-10-07T18:44:29Z → 2010-10-08T15:23:28Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:55–11:43 on the 7th, 10:55–11:43 on the 8th.",
          "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 7th and 48 of 48 on the 8th.",
          "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 25832 s"
        },
        {
          "step": "ruling",
          "text": "Navarātrārambha, Mashhad, 2010: Friday 8 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": "2010-10-08",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-08",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Navarātrārambha (Navratri) 2010 falls on Friday 8 October. Pratipadā runs from 22:14 on Thu 7 Oct to 18:53 on Fri 8 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vinayaka-chaturthi?on=2010-10-11",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1088,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-10-10T13:36:57+03:30",
          "utc": "2010-10-10T10:06:57Z",
          "ms": 1286705217241.0305
        },
        "end": {
          "local": "2010-10-11T12:00:15+03:30",
          "utc": "2010-10-11T08:30:15Z",
          "ms": 1286785815432.5054
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-10T13:36:57+03:30",
          "utc": "2010-10-10T10:06:57Z",
          "ms": 1286705217241.0305
        },
        "end": {
          "local": "2010-10-11T12:00:15+03:30",
          "utc": "2010-10-11T08:30:15Z",
          "ms": 1286785815432.5054
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-10-10",
          "window": {
            "start": {
              "local": "2010-10-10T10:54:23+03:30",
              "utc": "2010-10-10T07:24:23Z",
              "ms": 1286695463191.9941
            },
            "end": {
              "local": "2010-10-10T11:42:23+03:30",
              "utc": "2010-10-10T08:12:23Z",
              "ms": 1286698343191.9941
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-10-11",
          "window": {
            "start": {
              "local": "2010-10-11T10:54:08+03:30",
              "utc": "2010-10-11T07:24:08Z",
              "ms": 1286781847593.8223
            },
            "end": {
              "local": "2010-10-11T11:42:08+03:30",
              "utc": "2010-10-11T08:12:08Z",
              "ms": 1286784727593.8223
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 13:37 on Sun 10 Oct to 12:00 on Mon 11 Oct.",
          "fact": "2010-10-10T10:06:57Z → 2010-10-11T08:30:15Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:54–11:42 on the 10th, 10:54–11:42 on the 11th.",
          "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 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 midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 1088 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 2010: Monday 11 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": "2010-10-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 2010 falls on Monday 11 October. Caturthī runs from 13:37 on Sun 10 Oct to 12:00 on Mon 11 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/vinayaka-chaturthi?on=2010-10-11",
      "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/2010/durga-saptami",
      "festival": "durga-saptami",
      "name": "Durgā Saptamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17776,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2010-10-13T11:18:30+03:30",
          "utc": "2010-10-13T07:48:30Z",
          "ms": 1286956109770.3198
        },
        "end": {
          "local": "2010-10-14T12:13:21+03:30",
          "utc": "2010-10-14T08:43:21Z",
          "ms": 1287045800562.7073
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-13T11:18:30+03:30",
          "utc": "2010-10-13T07:48:30Z",
          "ms": 1286956109770.3198
        },
        "end": {
          "local": "2010-10-14T12:13:21+03:30",
          "utc": "2010-10-14T08:43:21Z",
          "ms": 1287045800562.7073
        }
      },
      "kaala": "udaya-1",
      "days": [
        {
          "local_date": "2010-10-13",
          "window": {
            "start": {
              "local": "2010-10-13T05:36:46+03:30",
              "utc": "2010-10-13T02:06:46Z",
              "ms": 1286935606466.2942
            },
            "end": {
              "local": "2010-10-13T06:22:13+03:30",
              "utc": "2010-10-13T02:52:13Z",
              "ms": 1286938333315.4526
            }
          },
          "covered_min": 0,
          "window_min": 45,
          "qualifies": false
        },
        {
          "local_date": "2010-10-14",
          "window": {
            "start": {
              "local": "2010-10-14T05:37:39+03:30",
              "utc": "2010-10-14T02:07:39Z",
              "ms": 1287022059236.6047
            },
            "end": {
              "local": "2010-10-14T06:22:57+03:30",
              "utc": "2010-10-14T02:52:57Z",
              "ms": 1287024777166.1292
            }
          },
          "covered_min": 45,
          "window_min": 45,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 11:18 on Wed 13 Oct to 12:13 on Thu 14 Oct.",
          "fact": "2010-10-13T07:48:30Z → 2010-10-14T08:43:21Z"
        },
        {
          "step": "kaala",
          "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:37–06:22 on the 13th, 05:38–06:23 on the 14th.",
          "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 0 of 45 minutes on the 13th and 45 of 45 on the 14th.",
          "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 17776 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Saptamī, Mashhad, 2010: Thursday 14 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": "2010-10-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Durgā Saptamī 2010 falls on Thursday 14 October. Saptamī runs from 11:18 on Wed 13 Oct to 12:13 on Thu 14 Oct and covers all of the first muhūrta after sunrise that morning.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/mahashtami",
      "festival": "mahashtami",
      "name": "Mahāṣṭamī",
      "everyday": "Durga Ashtami",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-15",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1917,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2010-10-14T12:13:21+03:30",
          "utc": "2010-10-14T08:43:21Z",
          "ms": 1287045800562.7073
        },
        "end": {
          "local": "2010-10-15T13:50:55+03:30",
          "utc": "2010-10-15T10:20:55Z",
          "ms": 1287138055063.0967
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-14T12:13:21+03:30",
          "utc": "2010-10-14T08:43:21Z",
          "ms": 1287045800562.7073
        },
        "end": {
          "local": "2010-10-15T13:50:55+03:30",
          "utc": "2010-10-15T10:20:55Z",
          "ms": 1287138055063.0967
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-10-14",
          "window": {
            "start": {
              "local": "2010-10-14T10:53:24+03:30",
              "utc": "2010-10-14T07:23:24Z",
              "ms": 1287041003708.0383
            },
            "end": {
              "local": "2010-10-14T11:41:24+03:30",
              "utc": "2010-10-14T08:11:24Z",
              "ms": 1287043883708.0383
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-10-15",
          "window": {
            "start": {
              "local": "2010-10-15T10:53:10+03:30",
              "utc": "2010-10-15T07:23:10Z",
              "ms": 1287127390106.1963
            },
            "end": {
              "local": "2010-10-15T11:41:10+03:30",
              "utc": "2010-10-15T08:11:10Z",
              "ms": 1287130270106.1963
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 12:13 on Thu 14 Oct to 13:51 on Fri 15 Oct.",
          "fact": "2010-10-14T08:43:21Z → 2010-10-15T10:20:55Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:53–11:41 on the 14th, 10:53–11:41 on the 15th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 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: paraviddha → only-day · margin 1917 s"
        },
        {
          "step": "ruling",
          "text": "Mahāṣṭamī, Mashhad, 2010: Friday 15 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": "2010-10-15",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-15",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mahāṣṭamī (Durga Ashtami) 2010 falls on Friday 15 October. Aṣṭamī runs from 12:13 on Thu 14 Oct to 13:51 on Fri 15 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vijaya-dashami",
      "festival": "vijaya-dashami",
      "name": "Vijayā Daśamī",
      "everyday": "Dussehra",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 3251,
      "anga": {
        "type": "tithi",
        "index": 9,
        "key": "dashami",
        "name": "Daśamī",
        "start": {
          "local": "2010-10-16T16:00:18+03:30",
          "utc": "2010-10-16T12:30:18Z",
          "ms": 1287232217791.0706
        },
        "end": {
          "local": "2010-10-17T18:28:18+03:30",
          "utc": "2010-10-17T14:58:18Z",
          "ms": 1287327498012.4202
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "conjunction",
        "start": {
          "local": "2010-10-16T16:00:18+03:30",
          "utc": "2010-10-16T12:30:18Z",
          "ms": 1287232217791.0706
        },
        "end": {
          "local": "2010-10-17T04:43:18+03:30",
          "utc": "2010-10-17T01:13:18Z",
          "ms": 1287277998065.761
        },
        "nakshatra": {
          "type": "nakshatra",
          "index": 21,
          "key": "shravana",
          "name": "Śravaṇa",
          "start": {
            "local": "2010-10-16T01:53:49+03:30",
            "utc": "2010-10-15T22:23:49Z",
            "ms": 1287181429252.6272
          },
          "end": {
            "local": "2010-10-17T04:43:18+03:30",
            "utc": "2010-10-17T01:13:18Z",
            "ms": 1287277998065.761
          }
        }
      },
      "kaala": "daytime",
      "days": [
        {
          "local_date": "2010-10-16",
          "window": {
            "start": {
              "local": "2010-10-16T05:39:26+03:30",
              "utc": "2010-10-16T02:09:26Z",
              "ms": 1287194965739.2173
            },
            "end": {
              "local": "2010-10-16T16:54:28+03:30",
              "utc": "2010-10-16T13:24:28Z",
              "ms": 1287235468355.8953
            }
          },
          "covered_min": 54,
          "window_min": 675,
          "qualifies": true
        },
        {
          "local_date": "2010-10-17",
          "window": {
            "start": {
              "local": "2010-10-17T05:40:19+03:30",
              "utc": "2010-10-17T02:10:19Z",
              "ms": 1287281419480.9717
            },
            "end": {
              "local": "2010-10-17T16:53:10+03:30",
              "utc": "2010-10-17T13:23:10Z",
              "ms": 1287321789619.9685
            }
          },
          "covered_min": 0,
          "window_min": 673,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Daśamī runs from 16:00 on Sat 16 Oct to 18:28 on Sun 17 Oct, and Śravaṇa from 01:54 on Sat 16 Oct to 04:43 on Sun 17 Oct. They are together from 16:00 on Sat 16 Oct to 04:43 on Sun 17 Oct.",
          "fact": "2010-10-16T12:30:18Z → 2010-10-17T01:13:18Z"
        },
        {
          "step": "kaala",
          "text": "The day time is sunrise to sunset: 05:39–16:54 on the 16th, 05:40–16:53 on the 17th.",
          "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 54 of 675 minutes on the 16th and 0 of 673 on the 17th.",
          "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 3251 s"
        },
        {
          "step": "ruling",
          "text": "Vijayā Daśamī, Mashhad, 2010: Saturday 16 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": "2010-10-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vijayā Daśamī (Dussehra) 2010 falls on Saturday 16 October. Daśamī runs from 16:00 on Sat 16 Oct to 18:28 on Sun 17 Oct and is with Śravaṇa in the day time that day, for 54 minutes.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/mahanavami",
      "festival": "mahanavami",
      "name": "Mahānavamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-16",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 7785,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2010-10-15T13:50:55+03:30",
          "utc": "2010-10-15T10:20:55Z",
          "ms": 1287138055063.0967
        },
        "end": {
          "local": "2010-10-16T16:00:18+03:30",
          "utc": "2010-10-16T12:30:18Z",
          "ms": 1287232217791.0706
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-15T13:50:55+03:30",
          "utc": "2010-10-15T10:20:55Z",
          "ms": 1287138055063.0967
        },
        "end": {
          "local": "2010-10-16T16:00:18+03:30",
          "utc": "2010-10-16T12:30:18Z",
          "ms": 1287232217791.0706
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-10-15",
          "window": {
            "start": {
              "local": "2010-10-15T10:53:10+03:30",
              "utc": "2010-10-15T07:23:10Z",
              "ms": 1287127390106.1963
            },
            "end": {
              "local": "2010-10-15T11:41:10+03:30",
              "utc": "2010-10-15T08:11:10Z",
              "ms": 1287130270106.1963
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-10-16",
          "window": {
            "start": {
              "local": "2010-10-16T10:52:57+03:30",
              "utc": "2010-10-16T07:22:57Z",
              "ms": 1287213777047.5562
            },
            "end": {
              "local": "2010-10-16T11:40:57+03:30",
              "utc": "2010-10-16T08:10:57Z",
              "ms": 1287216657047.5562
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 13:51 on Fri 15 Oct to 16:00 on Sat 16 Oct.",
          "fact": "2010-10-15T10:20:55Z → 2010-10-16T12:30:18Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:53–11:41 on the 15th, 10:53–11:41 on the 16th.",
          "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 7785 s"
        },
        {
          "step": "ruling",
          "text": "Mahānavamī, Mashhad, 2010: Saturday 16 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": "2010-10-16",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-16",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mahānavamī 2010 falls on Saturday 16 October. Navamī runs from 13:51 on Fri 15 Oct to 16:00 on Sat 16 Oct and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-10-18",
      "festival": "ekadashi",
      "name": "Pāśāṅkuśā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31229,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-10-17T18:28:18+03:30",
          "utc": "2010-10-17T14:58:18Z",
          "ms": 1287327498012.4202
        },
        "end": {
          "local": "2010-10-18T21:01:39+03:30",
          "utc": "2010-10-18T17:31:39Z",
          "ms": 1287423099445.7122
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-17T18:28:18+03:30",
          "utc": "2010-10-17T14:58:18Z",
          "ms": 1287327498012.4202
        },
        "end": {
          "local": "2010-10-18T21:01:39+03:30",
          "utc": "2010-10-18T17:31:39Z",
          "ms": 1287423099445.7122
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-10-18",
          "window": {
            "start": {
              "local": "2010-10-18T05:41:14+03:30",
              "utc": "2010-10-18T02:11:14Z",
              "ms": 1287367873555.9504
            },
            "end": {
              "local": "2010-10-18T05:41:14+03:30",
              "utc": "2010-10-18T02:11:14Z",
              "ms": 1287367873555.9504
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-10-19",
          "window": {
            "start": {
              "local": "2010-10-19T05:42:08+03:30",
              "utc": "2010-10-19T02:12:08Z",
              "ms": 1287454327968.6404
            },
            "end": {
              "local": "2010-10-19T05:42:08+03:30",
              "utc": "2010-10-19T02:12:08Z",
              "ms": 1287454327968.6404
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 18:28 on Sun 17 Oct to 21:02 on Mon 18 Oct.",
          "fact": "2010-10-17T14:58:18Z → 2010-10-18T17:31:39Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:41 on the 18th and 05:42 on the 19th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 18th and is not on the 19th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 31229 s"
        },
        {
          "step": "ruling",
          "text": "Pāśāṅkuśā Ekādaśī, Mashhad, 2010: Monday 18 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": "2010-10-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Pāśāṅkuśā Ekādaśī 2010 falls on Monday 18 October. Ekādaśī runs from 18:28 on Sun 17 Oct to 21:02 on Mon 18 Oct and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-10-18",
      "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/2010/pradosha-vrata?on=2010-10-20",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17723,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-10-19T23:28:57+03:30",
          "utc": "2010-10-19T19:58:57Z",
          "ms": 1287518337368.594
        },
        "end": {
          "local": "2010-10-21T01:41:49+03:30",
          "utc": "2010-10-20T22:11:49Z",
          "ms": 1287612709266.0176
        },
        "month": {
          "amanta": 6,
          "purnimanta": 6,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Āśvina"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-19T23:28:57+03:30",
          "utc": "2010-10-19T19:58:57Z",
          "ms": 1287518337368.594
        },
        "end": {
          "local": "2010-10-21T01:41:49+03:30",
          "utc": "2010-10-20T22:11:49Z",
          "ms": 1287612709266.0176
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-10-19",
          "window": {
            "start": {
              "local": "2010-10-19T16:50:35+03:30",
              "utc": "2010-10-19T13:20:35Z",
              "ms": 1287494434661.5505
            },
            "end": {
              "local": "2010-10-19T18:33:34+03:30",
              "utc": "2010-10-19T15:03:34Z",
              "ms": 1287500614403.1125
            }
          },
          "covered_min": 0,
          "window_min": 103,
          "qualifies": false
        },
        {
          "local_date": "2010-10-20",
          "window": {
            "start": {
              "local": "2010-10-20T16:49:19+03:30",
              "utc": "2010-10-20T13:19:19Z",
              "ms": 1287580758504.863
            },
            "end": {
              "local": "2010-10-20T18:32:36+03:30",
              "utc": "2010-10-20T15:02:36Z",
              "ms": 1287586955747.376
            }
          },
          "covered_min": 103,
          "window_min": 103,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 23:29 on Tue 19 Oct to 01:42 on Thu 21 Oct.",
          "fact": "2010-10-19T19:58:57Z → 2010-10-20T22:11:49Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:51–18:34 on the 19th, 16:49–18:33 on the 20th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 19th and 103 of 103 on the 20th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 17723 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Wednesday 20 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": "2010-10-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Wednesday 20 October. Trayodaśī runs from 23:29 on Tue 19 Oct to 01:42 on Thu 21 Oct and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-10-20",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/2010/karaka-chaturthi",
      "festival": "karaka-chaturthi",
      "name": "Karaka Caturthī",
      "everyday": "Karwa Chauth",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 41050,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-10-26T07:25:59+03:30",
          "utc": "2010-10-26T03:55:59Z",
          "ms": 1288065358708.6387
        },
        "end": {
          "local": "2010-10-27T07:27:24+03:30",
          "utc": "2010-10-27T03:57:24Z",
          "ms": 1288151844058.9644
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-26T07:25:59+03:30",
          "utc": "2010-10-26T03:55:59Z",
          "ms": 1288065358708.6387
        },
        "end": {
          "local": "2010-10-27T07:27:24+03:30",
          "utc": "2010-10-27T03:57:24Z",
          "ms": 1288151844058.9644
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-10-26",
          "window": {
            "start": {
              "local": "2010-10-26T18:50:09+03:30",
              "utc": "2010-10-26T15:20:09Z",
              "ms": 1288106408710.927
            },
            "end": {
              "local": "2010-10-26T18:50:09+03:30",
              "utc": "2010-10-26T15:20:09Z",
              "ms": 1288106408710.927
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-10-27",
          "window": {
            "start": {
              "local": "2010-10-27T19:47:04+03:30",
              "utc": "2010-10-27T16:17:04Z",
              "ms": 1288196223736.962
            },
            "end": {
              "local": "2010-10-27T19:47:04+03:30",
              "utc": "2010-10-27T16:17:04Z",
              "ms": 1288196223736.962
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 07:26 on Tue 26 Oct to 07:27 on Wed 27 Oct.",
          "fact": "2010-10-26T03:55:59Z → 2010-10-27T03:57:24Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 18:50 on the 26th and 19:47 on the 27th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 26th and is not on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 41050 s"
        },
        {
          "step": "ruling",
          "text": "Karaka Caturthī, Mashhad, 2010: Tuesday 26 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": "2010-10-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Karaka Caturthī (Karwa Chauth) 2010 falls on Tuesday 26 October. Caturthī runs from 07:26 on Tue 26 Oct to 07:27 on Wed 27 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-10-26",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-26",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 41050,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-10-26T07:25:59+03:30",
          "utc": "2010-10-26T03:55:59Z",
          "ms": 1288065358708.6387
        },
        "end": {
          "local": "2010-10-27T07:27:24+03:30",
          "utc": "2010-10-27T03:57:24Z",
          "ms": 1288151844058.9644
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-26T07:25:59+03:30",
          "utc": "2010-10-26T03:55:59Z",
          "ms": 1288065358708.6387
        },
        "end": {
          "local": "2010-10-27T07:27:24+03:30",
          "utc": "2010-10-27T03:57:24Z",
          "ms": 1288151844058.9644
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-10-26",
          "window": {
            "start": {
              "local": "2010-10-26T18:50:09+03:30",
              "utc": "2010-10-26T15:20:09Z",
              "ms": 1288106408710.927
            },
            "end": {
              "local": "2010-10-26T18:50:09+03:30",
              "utc": "2010-10-26T15:20:09Z",
              "ms": 1288106408710.927
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-10-27",
          "window": {
            "start": {
              "local": "2010-10-27T19:47:04+03:30",
              "utc": "2010-10-27T16:17:04Z",
              "ms": 1288196223736.962
            },
            "end": {
              "local": "2010-10-27T19:47:04+03:30",
              "utc": "2010-10-27T16:17:04Z",
              "ms": 1288196223736.962
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 07:26 on Tue 26 Oct to 07:27 on Wed 27 Oct.",
          "fact": "2010-10-26T03:55:59Z → 2010-10-27T03:57:24Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 18:50 on the 26th and 19:47 on the 27th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is on the 26th and is not on the 27th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 41050 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Tuesday 26 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": "2010-10-26",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-26",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Tuesday 26 October. Caturthī runs from 07:26 on Tue 26 Oct to 07:27 on Wed 27 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-10-26",
      "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/2010/ahoyi-ashtami",
      "festival": "ahoyi-ashtami",
      "name": "Ahoyī Aṣṭamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-10-30",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15473,
      "anga": {
        "type": "tithi",
        "index": 22,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2010-10-30T05:03:04+03:30",
          "utc": "2010-10-30T01:33:04Z",
          "ms": 1288402384304.7832
        },
        "end": {
          "local": "2010-10-31T03:22:01+03:30",
          "utc": "2010-10-30T23:52:01Z",
          "ms": 1288482720880.6707
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-10-30T05:03:04+03:30",
          "utc": "2010-10-30T01:33:04Z",
          "ms": 1288402384304.7832
        },
        "end": {
          "local": "2010-10-31T03:22:01+03:30",
          "utc": "2010-10-30T23:52:01Z",
          "ms": 1288482720880.6707
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-10-29",
          "window": {
            "start": {
              "local": "2010-10-29T21:55:55+03:30",
              "utc": "2010-10-29T18:25:55Z",
              "ms": 1288376755171.396
            },
            "end": {
              "local": "2010-10-29T21:55:55+03:30",
              "utc": "2010-10-29T18:25:55Z",
              "ms": 1288376755171.396
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-10-30",
          "window": {
            "start": {
              "local": "2010-10-30T23:04:08+03:30",
              "utc": "2010-10-30T19:34:08Z",
              "ms": 1288467247654.6782
            },
            "end": {
              "local": "2010-10-30T23:04:08+03:30",
              "utc": "2010-10-30T19:34:08Z",
              "ms": 1288467247654.6782
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 05:03 on Sat 30 Oct to 03:22 on Sun 31 Oct.",
          "fact": "2010-10-30T01:33:04Z → 2010-10-30T23:52:01Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 21:56 on the 29th and 23:04 on the 30th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Aṣṭamī 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one moonrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 15473 s"
        },
        {
          "step": "ruling",
          "text": "Ahoyī Aṣṭamī, Mashhad, 2010: Saturday 30 October.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "ahoyi-ashtami",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day."
          }
        ],
        "kaala": "moonrise",
        "priority": "paraviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-10-30",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-10-30",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ahoyī Aṣṭamī 2010 falls on Saturday 30 October. Aṣṭamī runs from 05:03 on Sat 30 Oct to 03:22 on Sun 31 Oct and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-11-02",
      "festival": "ekadashi",
      "name": "Ramā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-02",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 25781,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-11-01T22:45:45+03:30",
          "utc": "2010-11-01T19:15:45Z",
          "ms": 1288638944819.67
        },
        "end": {
          "local": "2010-11-02T19:58:23+03:30",
          "utc": "2010-11-02T16:28:23Z",
          "ms": 1288715302647.885
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-01T22:45:45+03:30",
          "utc": "2010-11-01T19:15:45Z",
          "ms": 1288638944819.67
        },
        "end": {
          "local": "2010-11-02T19:58:23+03:30",
          "utc": "2010-11-02T16:28:23Z",
          "ms": 1288715302647.885
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-11-02",
          "window": {
            "start": {
              "local": "2010-11-02T05:55:26+03:30",
              "utc": "2010-11-02T02:25:26Z",
              "ms": 1288664726302.4268
            },
            "end": {
              "local": "2010-11-02T05:55:26+03:30",
              "utc": "2010-11-02T02:25:26Z",
              "ms": 1288664726302.4268
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        },
        {
          "local_date": "2010-11-03",
          "window": {
            "start": {
              "local": "2010-11-03T05:56:26+03:30",
              "utc": "2010-11-03T02:26:26Z",
              "ms": 1288751185805.224
            },
            "end": {
              "local": "2010-11-03T05:56:26+03:30",
              "utc": "2010-11-03T02:26:26Z",
              "ms": 1288751185805.224
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 22:46 on Mon 1 Nov to 19:58 on Tue 2 Nov.",
          "fact": "2010-11-01T19:15:45Z → 2010-11-02T16:28:23Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 05:55 on the 2nd and 05:56 on the 3rd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is on the 2nd and is not on the 3rd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Only one sunrise qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 25781 s"
        },
        {
          "step": "ruling",
          "text": "Ramā Ekādaśī, Mashhad, 2010: Tuesday 2 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": "2010-11-02",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-02",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Ramā Ekādaśī 2010 falls on Tuesday 2 November. Ekādaśī runs from 22:46 on Mon 1 Nov to 19:58 on Tue 2 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-11-02",
      "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/2010/govatsa-dvadashi",
      "festival": "govatsa-dvadashi",
      "name": "Govatsa Dvādaśī",
      "everyday": "Vasu Baras",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1581,
      "anga": {
        "type": "tithi",
        "index": 26,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2010-11-02T19:58:23+03:30",
          "utc": "2010-11-02T16:28:23Z",
          "ms": 1288715302647.885
        },
        "end": {
          "local": "2010-11-03T16:59:46+03:30",
          "utc": "2010-11-03T13:29:46Z",
          "ms": 1288790986242.6177
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-02T19:58:23+03:30",
          "utc": "2010-11-02T16:28:23Z",
          "ms": 1288715302647.885
        },
        "end": {
          "local": "2010-11-03T16:59:46+03:30",
          "utc": "2010-11-03T13:29:46Z",
          "ms": 1288790986242.6177
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-11-02",
          "window": {
            "start": {
              "local": "2010-11-02T16:34:25+03:30",
              "utc": "2010-11-02T13:04:25Z",
              "ms": 1288703065318.8457
            },
            "end": {
              "local": "2010-11-02T18:21:21+03:30",
              "utc": "2010-11-02T14:51:21Z",
              "ms": 1288709481383.696
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        },
        {
          "local_date": "2010-11-03",
          "window": {
            "start": {
              "local": "2010-11-03T16:33:25+03:30",
              "utc": "2010-11-03T13:03:25Z",
              "ms": 1288789405270.8018
            },
            "end": {
              "local": "2010-11-03T18:20:37+03:30",
              "utc": "2010-11-03T14:50:37Z",
              "ms": 1288795837311.6824
            }
          },
          "covered_min": 26,
          "window_min": 107,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 19:58 on Tue 2 Nov to 17:00 on Wed 3 Nov.",
          "fact": "2010-11-02T16:28:23Z → 2010-11-03T13:29:46Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:34–18:21 on the 2nd, 16:33–18:21 on the 3rd.",
          "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 2nd and 26 of 107 on the 3rd.",
          "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 1581 s"
        },
        {
          "step": "ruling",
          "text": "Govatsa Dvādaśī, Mashhad, 2010: Wednesday 3 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "govatsa-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day."
          }
        ],
        "kaala": "pradosha",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-11-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Govatsa Dvādaśī (Vasu Baras) 2010 falls on Wednesday 3 November. Dvādaśī runs from 19:58 on Tue 2 Nov to 17:00 on Wed 3 Nov and covers 26 of 107 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/yama-dipadana",
      "festival": "yama-dipadana",
      "name": "Yama Dīpadāna",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1581,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-11-03T16:59:46+03:30",
          "utc": "2010-11-03T13:29:46Z",
          "ms": 1288790986242.6177
        },
        "end": {
          "local": "2010-11-04T13:57:59+03:30",
          "utc": "2010-11-04T10:27:59Z",
          "ms": 1288866479398.8604
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-03T16:59:46+03:30",
          "utc": "2010-11-03T13:29:46Z",
          "ms": 1288790986242.6177
        },
        "end": {
          "local": "2010-11-04T13:57:59+03:30",
          "utc": "2010-11-04T10:27:59Z",
          "ms": 1288866479398.8604
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-11-03",
          "window": {
            "start": {
              "local": "2010-11-03T16:33:25+03:30",
              "utc": "2010-11-03T13:03:25Z",
              "ms": 1288789405270.8018
            },
            "end": {
              "local": "2010-11-03T18:20:37+03:30",
              "utc": "2010-11-03T14:50:37Z",
              "ms": 1288795837311.6824
            }
          },
          "covered_min": 81,
          "window_min": 107,
          "qualifies": true
        },
        {
          "local_date": "2010-11-04",
          "window": {
            "start": {
              "local": "2010-11-04T16:32:27+03:30",
              "utc": "2010-11-04T13:02:27Z",
              "ms": 1288875746621.7722
            },
            "end": {
              "local": "2010-11-04T18:19:54+03:30",
              "utc": "2010-11-04T14:49:54Z",
              "ms": 1288882194485.2126
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 17:00 on Wed 3 Nov to 13:58 on Thu 4 Nov.",
          "fact": "2010-11-03T13:29:46Z → 2010-11-04T10:27:59Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:33–18:21 on the 3rd, 16:32–18:20 on the 4th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 81 of 107 minutes on the 3rd and 0 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: unstated → only-day · margin 1581 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dīpadāna, Mashhad, 2010: Wednesday 3 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": "2010-11-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Yama Dīpadāna 2010 falls on Wednesday 3 November. Trayodaśī runs from 17:00 on Wed 3 Nov to 13:58 on Thu 4 Nov and covers 81 of 107 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/pradosha-vrata?on=2010-11-03",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 1581,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-11-03T16:59:46+03:30",
          "utc": "2010-11-03T13:29:46Z",
          "ms": 1288790986242.6177
        },
        "end": {
          "local": "2010-11-04T13:57:59+03:30",
          "utc": "2010-11-04T10:27:59Z",
          "ms": 1288866479398.8604
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-03T16:59:46+03:30",
          "utc": "2010-11-03T13:29:46Z",
          "ms": 1288790986242.6177
        },
        "end": {
          "local": "2010-11-04T13:57:59+03:30",
          "utc": "2010-11-04T10:27:59Z",
          "ms": 1288866479398.8604
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-11-03",
          "window": {
            "start": {
              "local": "2010-11-03T16:33:25+03:30",
              "utc": "2010-11-03T13:03:25Z",
              "ms": 1288789405270.8018
            },
            "end": {
              "local": "2010-11-03T18:20:37+03:30",
              "utc": "2010-11-03T14:50:37Z",
              "ms": 1288795837311.6824
            }
          },
          "covered_min": 81,
          "window_min": 107,
          "qualifies": true
        },
        {
          "local_date": "2010-11-04",
          "window": {
            "start": {
              "local": "2010-11-04T16:32:27+03:30",
              "utc": "2010-11-04T13:02:27Z",
              "ms": 1288875746621.7722
            },
            "end": {
              "local": "2010-11-04T18:19:54+03:30",
              "utc": "2010-11-04T14:49:54Z",
              "ms": 1288882194485.2126
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 17:00 on Wed 3 Nov to 13:58 on Thu 4 Nov.",
          "fact": "2010-11-03T13:29:46Z → 2010-11-04T10:27:59Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:33–18:21 on the 3rd, 16:32–18:20 on the 4th.",
          "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Trayodaśī must be present during pradoṣa. It covers 81 of 107 minutes on the 3rd and 0 of 107 on the 4th.",
          "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 1581 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Wednesday 3 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": "2010-11-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Wednesday 3 November. Trayodaśī runs from 17:00 on Wed 3 Nov to 13:58 on Thu 4 Nov and covers 81 of 107 minutes of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-11-03",
      "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/2010/shivaratri?on=2010-11-04",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-04",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32007,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-11-04T13:57:59+03:30",
          "utc": "2010-11-04T10:27:59Z",
          "ms": 1288866479398.8604
        },
        "end": {
          "local": "2010-11-05T11:02:07+03:30",
          "utc": "2010-11-05T07:32:07Z",
          "ms": 1288942327137.3142
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-04T13:57:59+03:30",
          "utc": "2010-11-04T10:27:59Z",
          "ms": 1288866479398.8604
        },
        "end": {
          "local": "2010-11-05T11:02:07+03:30",
          "utc": "2010-11-05T07:32:07Z",
          "ms": 1288942327137.3142
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-11-04",
          "window": {
            "start": {
              "local": "2010-11-04T22:51:26+03:30",
              "utc": "2010-11-04T19:21:26Z",
              "ms": 1288898486109.6738
            },
            "end": {
              "local": "2010-11-04T23:39:26+03:30",
              "utc": "2010-11-04T20:09:26Z",
              "ms": 1288901366109.6738
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-11-05",
          "window": {
            "start": {
              "local": "2010-11-05T22:51:28+03:30",
              "utc": "2010-11-05T19:21:28Z",
              "ms": 1288984887620.7769
            },
            "end": {
              "local": "2010-11-05T23:39:28+03:30",
              "utc": "2010-11-05T20:09:28Z",
              "ms": 1288987767620.7769
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 13:58 on Thu 4 Nov to 11:02 on Fri 5 Nov.",
          "fact": "2010-11-04T10:27:59Z → 2010-11-05T07:32:07Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:51–23:39 on the 4th, 22:51–23:39 on the 5th.",
          "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 4th and 0 of 48 on the 5th.",
          "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 32007 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Thursday 4 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": "2010-11-04",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-04",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Thursday 4 November. Caturdaśī runs from 13:58 on Thu 4 Nov to 11:02 on Fri 5 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-11-04",
      "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/2010/naraka-chaturdashi",
      "festival": "naraka-chaturdashi",
      "name": "Naraka Caturdaśī",
      "everyday": "Choti Diwali",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 18222,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-11-04T13:57:59+03:30",
          "utc": "2010-11-04T10:27:59Z",
          "ms": 1288866479398.8604
        },
        "end": {
          "local": "2010-11-05T11:02:07+03:30",
          "utc": "2010-11-05T07:32:07Z",
          "ms": 1288942327137.3142
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-04T13:57:59+03:30",
          "utc": "2010-11-04T10:27:59Z",
          "ms": 1288866479398.8604
        },
        "end": {
          "local": "2010-11-05T11:02:07+03:30",
          "utc": "2010-11-05T07:32:07Z",
          "ms": 1288942327137.3142
        }
      },
      "kaala": "arunodaya",
      "days": [
        {
          "local_date": "2010-11-04",
          "window": {
            "start": {
              "local": "2010-11-04T04:10:14+03:30",
              "utc": "2010-11-04T00:40:14Z",
              "ms": 1288831213536.5256
            },
            "end": {
              "local": "2010-11-04T05:57:26+03:30",
              "utc": "2010-11-04T02:27:26Z",
              "ms": 1288837645577.4062
            }
          },
          "covered_min": 0,
          "window_min": 107,
          "qualifies": false
        },
        {
          "local_date": "2010-11-05",
          "window": {
            "start": {
              "local": "2010-11-05T04:10:58+03:30",
              "utc": "2010-11-05T00:40:58Z",
              "ms": 1288917657734.1348
            },
            "end": {
              "local": "2010-11-05T05:58:26+03:30",
              "utc": "2010-11-05T02:28:26Z",
              "ms": 1288924105597.5752
            }
          },
          "covered_min": 107,
          "window_min": 107,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 13:58 on Thu 4 Nov to 11:02 on Fri 5 Nov.",
          "fact": "2010-11-04T10:27:59Z → 2010-11-05T07:32:07Z"
        },
        {
          "step": "kaala",
          "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:10–05:57 on the 4th, 04:11–05:58 on the 5th.",
          "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 107 minutes on the 4th and 107 of 107 on the 5th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one dawn qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 18222 s"
        },
        {
          "step": "ruling",
          "text": "Naraka Caturdaśī, Mashhad, 2010: Friday 5 November.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "naraka-chaturdashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)"
          }
        ],
        "kaala": "arunodaya",
        "priority": "purvaviddha",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-11-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Naraka Caturdaśī (Choti Diwali) 2010 falls on Friday 5 November. Caturdaśī runs from 13:58 on Thu 4 Nov to 11:02 on Fri 5 Nov and covers all of aruṇodaya that dawn.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/diwali-lakshmi-puja",
      "festival": "diwali-lakshmi-puja",
      "name": "Lakṣmī Pūjā",
      "everyday": "Diwali",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 19762,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "2010-11-05T11:02:07+03:30",
          "utc": "2010-11-05T07:32:07Z",
          "ms": 1288942327137.3142
        },
        "end": {
          "local": "2010-11-06T08:21:47+03:30",
          "utc": "2010-11-06T04:51:47Z",
          "ms": 1289019106832.308
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-05T11:02:07+03:30",
          "utc": "2010-11-05T07:32:07Z",
          "ms": 1288942327137.3142
        },
        "end": {
          "local": "2010-11-06T08:21:47+03:30",
          "utc": "2010-11-06T04:51:47Z",
          "ms": 1289019106832.308
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-11-05",
          "window": {
            "start": {
              "local": "2010-11-05T16:31:29+03:30",
              "utc": "2010-11-05T13:01:29Z",
              "ms": 1288962089399.4316
            },
            "end": {
              "local": "2010-11-05T18:19:13+03:30",
              "utc": "2010-11-05T14:49:13Z",
              "ms": 1288968552925.1238
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        },
        {
          "local_date": "2010-11-06",
          "window": {
            "start": {
              "local": "2010-11-06T16:30:34+03:30",
              "utc": "2010-11-06T13:00:34Z",
              "ms": 1289048433630.5417
            },
            "end": {
              "local": "2010-11-06T18:18:33+03:30",
              "utc": "2010-11-06T14:48:33Z",
              "ms": 1289054912651.2124
            }
          },
          "covered_min": 0,
          "window_min": 108,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 11:02 on Fri 5 Nov to 08:22 on Sat 6 Nov.",
          "fact": "2010-11-05T07:32:07Z → 2010-11-06T04:51:47Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:31–18:19 on the 5th, 16:31–18:19 on the 6th.",
          "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 5th and 0 of 108 on the 6th.",
          "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 19762 s"
        },
        {
          "step": "ruling",
          "text": "Lakṣmī Pūjā, Mashhad, 2010: Friday 5 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": "2010-11-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Lakṣmī Pūjā (Diwali) 2010 falls on Friday 5 November. Amāvasyā runs from 11:02 on Fri 5 Nov to 08:22 on Sat 6 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/kali-puja",
      "festival": "kali-puja",
      "name": "Kālī Pūjā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-05",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31339,
      "anga": {
        "type": "tithi",
        "index": 29,
        "key": "amavasya",
        "name": "Amāvasyā",
        "start": {
          "local": "2010-11-05T11:02:07+03:30",
          "utc": "2010-11-05T07:32:07Z",
          "ms": 1288942327137.3142
        },
        "end": {
          "local": "2010-11-06T08:21:47+03:30",
          "utc": "2010-11-06T04:51:47Z",
          "ms": 1289019106832.308
        },
        "month": {
          "amanta": 6,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Āśvina",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-05T11:02:07+03:30",
          "utc": "2010-11-05T07:32:07Z",
          "ms": 1288942327137.3142
        },
        "end": {
          "local": "2010-11-06T08:21:47+03:30",
          "utc": "2010-11-06T04:51:47Z",
          "ms": 1289019106832.308
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-11-04",
          "window": {
            "start": {
              "local": "2010-11-04T22:51:26+03:30",
              "utc": "2010-11-04T19:21:26Z",
              "ms": 1288898486109.6738
            },
            "end": {
              "local": "2010-11-04T23:39:26+03:30",
              "utc": "2010-11-04T20:09:26Z",
              "ms": 1288901366109.6738
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-11-05",
          "window": {
            "start": {
              "local": "2010-11-05T22:51:28+03:30",
              "utc": "2010-11-05T19:21:28Z",
              "ms": 1288984887620.7769
            },
            "end": {
              "local": "2010-11-05T23:39:28+03:30",
              "utc": "2010-11-05T20:09:28Z",
              "ms": 1288987767620.7769
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Amāvasyā runs from 11:02 on Fri 5 Nov to 08:22 on Sat 6 Nov.",
          "fact": "2010-11-05T07:32:07Z → 2010-11-06T04:51:47Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:51–23:39 on the 4th, 22:51–23:39 on the 5th.",
          "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 4th and 48 of 48 on the 5th.",
          "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 31339 s"
        },
        {
          "step": "ruling",
          "text": "Kālī Pūjā, Mashhad, 2010: Friday 5 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": "2010-11-05",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-05",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kālī Pūjā 2010 falls on Friday 5 November. Amāvasyā runs from 11:02 on Fri 5 Nov to 08:22 on Sat 6 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/govardhana-puja",
      "festival": "govardhana-puja",
      "name": "Govardhana Pūjā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 8953,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2010-11-06T08:21:47+03:30",
          "utc": "2010-11-06T04:51:47Z",
          "ms": 1289019106832.308
        },
        "end": {
          "local": "2010-11-07T06:06:35+03:30",
          "utc": "2010-11-07T02:36:35Z",
          "ms": 1289097394642.3289
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-06T08:21:47+03:30",
          "utc": "2010-11-06T04:51:47Z",
          "ms": 1289019106832.308
        },
        "end": {
          "local": "2010-11-07T06:06:35+03:30",
          "utc": "2010-11-07T02:36:35Z",
          "ms": 1289097394642.3289
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-11-06",
          "window": {
            "start": {
              "local": "2010-11-06T10:51:00+03:30",
              "utc": "2010-11-06T07:21:00Z",
              "ms": 1289028059736.332
            },
            "end": {
              "local": "2010-11-06T11:39:00+03:30",
              "utc": "2010-11-06T08:09:00Z",
              "ms": 1289030939736.332
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-11-07",
          "window": {
            "start": {
              "local": "2010-11-07T10:51:03+03:30",
              "utc": "2010-11-07T07:21:03Z",
              "ms": 1289114462813.5332
            },
            "end": {
              "local": "2010-11-07T11:39:03+03:30",
              "utc": "2010-11-07T08:09:03Z",
              "ms": 1289117342813.5332
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 08:22 on Sat 6 Nov to 06:07 on Sun 7 Nov.",
          "fact": "2010-11-06T04:51:47Z → 2010-11-07T02:36:35Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 6th, 10:51–11:39 on the 7th.",
          "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 6th and 0 of 48 on the 7th.",
          "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 8953 s"
        },
        {
          "step": "ruling",
          "text": "Govardhana Pūjā, Mashhad, 2010: Saturday 6 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": "2010-11-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Govardhana Pūjā 2010 falls on Saturday 6 November. Pratipadā runs from 08:22 on Sat 6 Nov to 06:07 on Sun 7 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/bali-puja",
      "festival": "bali-puja",
      "name": "Bali Pūjā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-06",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29327,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2010-11-06T08:21:47+03:30",
          "utc": "2010-11-06T04:51:47Z",
          "ms": 1289019106832.308
        },
        "end": {
          "local": "2010-11-07T06:06:35+03:30",
          "utc": "2010-11-07T02:36:35Z",
          "ms": 1289097394642.3289
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-06T08:21:47+03:30",
          "utc": "2010-11-06T04:51:47Z",
          "ms": 1289019106832.308
        },
        "end": {
          "local": "2010-11-07T06:06:35+03:30",
          "utc": "2010-11-07T02:36:35Z",
          "ms": 1289097394642.3289
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-11-06",
          "window": {
            "start": {
              "local": "2010-11-06T16:30:34+03:30",
              "utc": "2010-11-06T13:00:34Z",
              "ms": 1289048433630.5417
            },
            "end": {
              "local": "2010-11-06T18:18:33+03:30",
              "utc": "2010-11-06T14:48:33Z",
              "ms": 1289054912651.2124
            }
          },
          "covered_min": 108,
          "window_min": 108,
          "qualifies": true
        },
        {
          "local_date": "2010-11-07",
          "window": {
            "start": {
              "local": "2010-11-07T16:29:39+03:30",
              "utc": "2010-11-07T12:59:39Z",
              "ms": 1289134779341.4944
            },
            "end": {
              "local": "2010-11-07T18:17:54+03:30",
              "utc": "2010-11-07T14:47:54Z",
              "ms": 1289141273682.7668
            }
          },
          "covered_min": 0,
          "window_min": 108,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 08:22 on Sat 6 Nov to 06:07 on Sun 7 Nov.",
          "fact": "2010-11-06T04:51:47Z → 2010-11-07T02:36:35Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:31–18:19 on the 6th, 16:30–18:18 on the 7th.",
          "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 6th and 0 of 108 on the 7th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 29327 s"
        },
        {
          "step": "ruling",
          "text": "Bali Pūjā, Mashhad, 2010: Saturday 6 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": "2010-11-06",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-06",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Bali Pūjā 2010 falls on Saturday 6 November. Pratipadā runs from 08:22 on Sat 6 Nov to 06:07 on Sun 7 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/dyuta-pratipad",
      "festival": "dyuta-pratipad",
      "name": "Dyūta Pratipad",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-06",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 368,
      "anga": {
        "type": "tithi",
        "index": 0,
        "key": "pratipada",
        "name": "Pratipadā",
        "start": {
          "local": "2010-11-06T08:21:47+03:30",
          "utc": "2010-11-06T04:51:47Z",
          "ms": 1289019106832.308
        },
        "end": {
          "local": "2010-11-07T06:06:35+03:30",
          "utc": "2010-11-07T02:36:35Z",
          "ms": 1289097394642.3289
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-06T08:21:47+03:30",
          "utc": "2010-11-06T04:51:47Z",
          "ms": 1289019106832.308
        },
        "end": {
          "local": "2010-11-07T06:06:35+03:30",
          "utc": "2010-11-07T02:36:35Z",
          "ms": 1289097394642.3289
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "2010-11-06",
          "window": {
            "start": {
              "local": "2010-11-06T05:59:26+03:30",
              "utc": "2010-11-06T02:29:26Z",
              "ms": 1289010565842.1223
            },
            "end": {
              "local": "2010-11-06T09:29:48+03:30",
              "utc": "2010-11-06T05:59:48Z",
              "ms": 1289023188438.2622
            }
          },
          "covered_min": 68,
          "window_min": 210,
          "qualifies": true
        },
        {
          "local_date": "2010-11-07",
          "window": {
            "start": {
              "local": "2010-11-07T06:00:26+03:30",
              "utc": "2010-11-07T02:30:26Z",
              "ms": 1289097026285.5723
            },
            "end": {
              "local": "2010-11-07T09:30:11+03:30",
              "utc": "2010-11-07T06:00:11Z",
              "ms": 1289109610637.5464
            }
          },
          "covered_min": 6,
          "window_min": 210,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Pratipadā runs from 08:22 on Sat 6 Nov to 06:07 on Sun 7 Nov.",
          "fact": "2010-11-06T04:51:47Z → 2010-11-07T02:36:35Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:59–09:30 on the 6th, 06:00–09:30 on the 7th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Pratipadā must be present during pūrvāhṇa. It covers 68 of 210 minutes on the 6th and 6 of 210 on the 7th.",
          "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 368 s"
        },
        {
          "step": "ruling",
          "text": "Dyūta Pratipad, Mashhad, 2010: Saturday 6 November.",
          "fact": "confidence: boundary (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": "2010-11-06",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-06",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Dyūta Pratipad 2010 falls on Saturday 6 November. Pratipadā runs from 08:22 on Sat 6 Nov to 06:07 on Sun 7 Nov and covers 68 of 210 minutes of pūrvāhṇa that forenoon. It also reaches the next forenoon for 6 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/2010/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/2010/yama-dvitiya",
      "festival": "yama-dvitiya",
      "name": "Yama Dvitīyā",
      "everyday": "Bhai Dooj",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-07",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 17068,
      "anga": {
        "type": "tithi",
        "index": 1,
        "key": "dvitiya",
        "name": "Dvitīyā",
        "start": {
          "local": "2010-11-07T06:06:35+03:30",
          "utc": "2010-11-07T02:36:35Z",
          "ms": 1289097394642.3289
        },
        "end": {
          "local": "2010-11-08T04:25:25+03:30",
          "utc": "2010-11-08T00:55:25Z",
          "ms": 1289177724872.2424
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-07T06:06:35+03:30",
          "utc": "2010-11-07T02:36:35Z",
          "ms": 1289097394642.3289
        },
        "end": {
          "local": "2010-11-08T04:25:25+03:30",
          "utc": "2010-11-08T00:55:25Z",
          "ms": 1289177724872.2424
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-11-07",
          "window": {
            "start": {
              "local": "2010-11-07T10:51:03+03:30",
              "utc": "2010-11-07T07:21:03Z",
              "ms": 1289114462813.5332
            },
            "end": {
              "local": "2010-11-07T11:39:03+03:30",
              "utc": "2010-11-07T08:09:03Z",
              "ms": 1289117342813.5332
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-11-08",
          "window": {
            "start": {
              "local": "2010-11-08T10:51:07+03:30",
              "utc": "2010-11-08T07:21:07Z",
              "ms": 1289200866729.907
            },
            "end": {
              "local": "2010-11-08T11:39:07+03:30",
              "utc": "2010-11-08T08:09:07Z",
              "ms": 1289203746729.907
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvitīyā runs from 06:07 on Sun 7 Nov to 04:25 on Mon 8 Nov.",
          "fact": "2010-11-07T02:36:35Z → 2010-11-08T00:55:25Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 7th, 10:51–11:39 on the 8th.",
          "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 7th and 0 of 48 on the 8th.",
          "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 17068 s"
        },
        {
          "step": "ruling",
          "text": "Yama Dvitīyā, Mashhad, 2010: Sunday 7 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": "2010-11-07",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-07",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Yama Dvitīyā (Bhai Dooj) 2010 falls on Sunday 7 November. Dvitīyā runs from 06:07 on Sun 7 Nov to 04:25 on Mon 8 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/naga-chaturthi",
      "festival": "naga-chaturthi",
      "name": "Nāga Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26732,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-11-09T03:25:40+03:30",
          "utc": "2010-11-08T23:55:40Z",
          "ms": 1289260539949.2466
        },
        "end": {
          "local": "2010-11-10T03:12:11+03:30",
          "utc": "2010-11-09T23:42:11Z",
          "ms": 1289346131395.8179
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-09T03:25:40+03:30",
          "utc": "2010-11-08T23:55:40Z",
          "ms": 1289260539949.2466
        },
        "end": {
          "local": "2010-11-10T03:12:11+03:30",
          "utc": "2010-11-09T23:42:11Z",
          "ms": 1289346131395.8179
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-11-09",
          "window": {
            "start": {
              "local": "2010-11-09T10:51:11+03:30",
              "utc": "2010-11-09T07:21:11Z",
              "ms": 1289287271484.9658
            },
            "end": {
              "local": "2010-11-09T11:39:11+03:30",
              "utc": "2010-11-09T08:09:11Z",
              "ms": 1289290151484.9658
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-11-10",
          "window": {
            "start": {
              "local": "2010-11-10T10:51:17+03:30",
              "utc": "2010-11-10T07:21:17Z",
              "ms": 1289373677078.1504
            },
            "end": {
              "local": "2010-11-10T11:39:17+03:30",
              "utc": "2010-11-10T08:09:17Z",
              "ms": 1289376557078.1504
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 03:26 on Tue 9 Nov to 03:12 on Wed 10 Nov.",
          "fact": "2010-11-08T23:55:40Z → 2010-11-09T23:42:11Z"
        },
        {
          "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": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 26732 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Caturthī, Mashhad, 2010: Tuesday 9 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": "2010-11-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Nāga Caturthī 2010 falls on Tuesday 9 November. Caturthī runs from 03:26 on Tue 9 Nov to 03:12 on Wed 10 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/vinayaka-chaturthi?on=2010-11-09",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26732,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-11-09T03:25:40+03:30",
          "utc": "2010-11-08T23:55:40Z",
          "ms": 1289260539949.2466
        },
        "end": {
          "local": "2010-11-10T03:12:11+03:30",
          "utc": "2010-11-09T23:42:11Z",
          "ms": 1289346131395.8179
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-09T03:25:40+03:30",
          "utc": "2010-11-08T23:55:40Z",
          "ms": 1289260539949.2466
        },
        "end": {
          "local": "2010-11-10T03:12:11+03:30",
          "utc": "2010-11-09T23:42:11Z",
          "ms": 1289346131395.8179
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-11-09",
          "window": {
            "start": {
              "local": "2010-11-09T10:51:11+03:30",
              "utc": "2010-11-09T07:21:11Z",
              "ms": 1289287271484.9658
            },
            "end": {
              "local": "2010-11-09T11:39:11+03:30",
              "utc": "2010-11-09T08:09:11Z",
              "ms": 1289290151484.9658
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-11-10",
          "window": {
            "start": {
              "local": "2010-11-10T10:51:17+03:30",
              "utc": "2010-11-10T07:21:17Z",
              "ms": 1289373677078.1504
            },
            "end": {
              "local": "2010-11-10T11:39:17+03:30",
              "utc": "2010-11-10T08:09:17Z",
              "ms": 1289376557078.1504
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 03:26 on Tue 9 Nov to 03:12 on Wed 10 Nov.",
          "fact": "2010-11-08T23:55:40Z → 2010-11-09T23:42:11Z"
        },
        {
          "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": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 26732 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 2010: Tuesday 9 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": "2010-11-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 2010 falls on Tuesday 9 November. Caturthī runs from 03:26 on Tue 9 Nov to 03:12 on Wed 10 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/vinayaka-chaturthi?on=2010-11-09",
      "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/2010/surya-shashthi",
      "festival": "surya-shashthi",
      "name": "Sūrya Ṣaṣṭhī",
      "everyday": "Chhath",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 20793,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2010-11-11T03:46:18+03:30",
          "utc": "2010-11-11T00:16:18Z",
          "ms": 1289434578203.1702
        },
        "end": {
          "local": "2010-11-12T05:04:58+03:30",
          "utc": "2010-11-12T01:34:58Z",
          "ms": 1289525697529.3757
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-11T03:46:18+03:30",
          "utc": "2010-11-11T00:16:18Z",
          "ms": 1289434578203.1702
        },
        "end": {
          "local": "2010-11-12T05:04:58+03:30",
          "utc": "2010-11-12T01:34:58Z",
          "ms": 1289525697529.3757
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-11-11",
          "window": {
            "start": {
              "local": "2010-11-11T10:51:24+03:30",
              "utc": "2010-11-11T07:21:24Z",
              "ms": 1289460083508.8848
            },
            "end": {
              "local": "2010-11-11T11:39:24+03:30",
              "utc": "2010-11-11T08:09:24Z",
              "ms": 1289462963508.8848
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-11-12",
          "window": {
            "start": {
              "local": "2010-11-12T10:51:31+03:30",
              "utc": "2010-11-12T07:21:31Z",
              "ms": 1289546490776.5151
            },
            "end": {
              "local": "2010-11-12T11:39:31+03:30",
              "utc": "2010-11-12T08:09:31Z",
              "ms": 1289549370776.5151
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 03:46 on Thu 11 Nov to 05:05 on Fri 12 Nov.",
          "fact": "2010-11-11T00:16:18Z → 2010-11-12T01:34:58Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 11th, 10:52–11:40 on the 12th.",
          "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 11th and 0 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 20793 s"
        },
        {
          "step": "ruling",
          "text": "Sūrya Ṣaṣṭhī, Mashhad, 2010: Thursday 11 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": "2010-11-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Sūrya Ṣaṣṭhī (Chhath) 2010 falls on Thursday 11 November. Ṣaṣṭhī runs from 03:46 on Thu 11 Nov to 05:05 on Fri 12 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/gopashtami",
      "festival": "gopashtami",
      "name": "Gopāṣṭamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-13",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 5431,
      "anga": {
        "type": "tithi",
        "index": 7,
        "key": "ashtami",
        "name": "Aṣṭamī",
        "start": {
          "local": "2010-11-13T07:00:30+03:30",
          "utc": "2010-11-13T03:30:30Z",
          "ms": 1289619029563.961
        },
        "end": {
          "local": "2010-11-14T09:21:16+03:30",
          "utc": "2010-11-14T05:51:16Z",
          "ms": 1289713876378.1582
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-13T07:00:30+03:30",
          "utc": "2010-11-13T03:30:30Z",
          "ms": 1289619029563.961
        },
        "end": {
          "local": "2010-11-14T09:21:16+03:30",
          "utc": "2010-11-14T05:51:16Z",
          "ms": 1289713876378.1582
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-11-13",
          "window": {
            "start": {
              "local": "2010-11-13T10:51:39+03:30",
              "utc": "2010-11-13T07:21:39Z",
              "ms": 1289632898880.19
            },
            "end": {
              "local": "2010-11-13T11:39:39+03:30",
              "utc": "2010-11-13T08:09:39Z",
              "ms": 1289635778880.19
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-11-14",
          "window": {
            "start": {
              "local": "2010-11-14T10:51:48+03:30",
              "utc": "2010-11-14T07:21:48Z",
              "ms": 1289719307818.729
            },
            "end": {
              "local": "2010-11-14T11:39:48+03:30",
              "utc": "2010-11-14T08:09:48Z",
              "ms": 1289722187818.729
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Aṣṭamī runs from 07:00 on Sat 13 Nov to 09:21 on Sun 14 Nov.",
          "fact": "2010-11-13T03:30:30Z → 2010-11-14T05:51:16Z"
        },
        {
          "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": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 5431 s"
        },
        {
          "step": "ruling",
          "text": "Gopāṣṭamī, Mashhad, 2010: Saturday 13 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": "2010-11-13",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-13",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Gopāṣṭamī 2010 falls on Saturday 13 November. Aṣṭamī runs from 07:00 on Sat 13 Nov to 09:21 on Sun 14 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/durga-navami",
      "festival": "durga-navami",
      "name": "Durgā Navamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-14",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 801,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2010-11-14T09:21:16+03:30",
          "utc": "2010-11-14T05:51:16Z",
          "ms": 1289713876378.1582
        },
        "end": {
          "local": "2010-11-15T11:53:18+03:30",
          "utc": "2010-11-15T08:23:18Z",
          "ms": 1289809398237.9736
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-14T09:21:16+03:30",
          "utc": "2010-11-14T05:51:16Z",
          "ms": 1289713876378.1582
        },
        "end": {
          "local": "2010-11-15T11:53:18+03:30",
          "utc": "2010-11-15T08:23:18Z",
          "ms": 1289809398237.9736
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-11-14",
          "window": {
            "start": {
              "local": "2010-11-14T10:51:48+03:30",
              "utc": "2010-11-14T07:21:48Z",
              "ms": 1289719307818.729
            },
            "end": {
              "local": "2010-11-14T11:39:48+03:30",
              "utc": "2010-11-14T08:09:48Z",
              "ms": 1289722187818.729
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-11-15",
          "window": {
            "start": {
              "local": "2010-11-15T10:51:58+03:30",
              "utc": "2010-11-15T07:21:58Z",
              "ms": 1289805717590.516
            },
            "end": {
              "local": "2010-11-15T11:39:58+03:30",
              "utc": "2010-11-15T08:09:58Z",
              "ms": 1289808597590.516
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "purvaviddha",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 09:21 on Sun 14 Nov to 11:53 on Mon 15 Nov.",
          "fact": "2010-11-14T05:51:16Z → 2010-11-15T08:23:18Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:52–11:40 on the 14th, 10:52–11:40 on the 15th.",
          "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 14th and 48 of 48 on the 15th.",
          "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 801 s"
        },
        {
          "step": "ruling",
          "text": "Durgā Navamī, Mashhad, 2010: Sunday 14 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": "2010-11-14",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-14",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Durgā Navamī 2010 falls on Sunday 14 November. Navamī runs from 09:21 on Sun 14 Nov to 11:53 on Mon 15 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/2010/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/2010/akshaya-navami",
      "festival": "akshaya-navami",
      "name": "Akṣaya Navamī",
      "everyday": "Amla Navami",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-15",
      "confidence": "boundary",
      "boundary_reasons": [
        "tie-break-unstated"
      ],
      "boundary_margin_s": 706,
      "anga": {
        "type": "tithi",
        "index": 8,
        "key": "navami",
        "name": "Navamī",
        "start": {
          "local": "2010-11-14T09:21:16+03:30",
          "utc": "2010-11-14T05:51:16Z",
          "ms": 1289713876378.1582
        },
        "end": {
          "local": "2010-11-15T11:53:18+03:30",
          "utc": "2010-11-15T08:23:18Z",
          "ms": 1289809398237.9736
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-14T09:21:16+03:30",
          "utc": "2010-11-14T05:51:16Z",
          "ms": 1289713876378.1582
        },
        "end": {
          "local": "2010-11-15T11:53:18+03:30",
          "utc": "2010-11-15T08:23:18Z",
          "ms": 1289809398237.9736
        }
      },
      "kaala": "purvahna",
      "days": [
        {
          "local_date": "2010-11-14",
          "window": {
            "start": {
              "local": "2010-11-14T06:07:33+03:30",
              "utc": "2010-11-14T02:37:33Z",
              "ms": 1289702252618.191
            },
            "end": {
              "local": "2010-11-14T09:33:03+03:30",
              "utc": "2010-11-14T06:03:03Z",
              "ms": 1289714582751.883
            }
          },
          "covered_min": 12,
          "window_min": 206,
          "qualifies": true
        },
        {
          "local_date": "2010-11-15",
          "window": {
            "start": {
              "local": "2010-11-15T06:08:34+03:30",
              "utc": "2010-11-15T02:38:34Z",
              "ms": 1289788713635.9365
            },
            "end": {
              "local": "2010-11-15T09:33:30+03:30",
              "utc": "2010-11-15T06:03:30Z",
              "ms": 1289801009605.6562
            }
          },
          "covered_min": 205,
          "window_min": 205,
          "qualifies": true
        }
      ],
      "decided_by": "greater-coverage",
      "explanation": [
        {
          "step": "anga",
          "text": "Navamī runs from 09:21 on Sun 14 Nov to 11:53 on Mon 15 Nov.",
          "fact": "2010-11-14T05:51:16Z → 2010-11-15T08:23:18Z"
        },
        {
          "step": "kaala",
          "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:08–09:33 on the 14th, 06:09–09:33 on the 15th.",
          "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Navamī must be present during pūrvāhṇa. It covers 12 of 206 minutes on the 14th and 205 of 205 on the 15th.",
          "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 706 s"
        },
        {
          "step": "ruling",
          "text": "Akṣaya Navamī, Mashhad, 2010: Monday 15 November.",
          "fact": "confidence: boundary (tie-break-unstated)"
        }
      ],
      "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": "2010-11-15",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-15",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Akṣaya Navamī (Amla Navami) 2010 falls on Monday 15 November. Navamī runs from 09:21 on Sun 14 Nov to 11:53 on Mon 15 Nov and covers all of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 12 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/2010/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/2010/ekadashi?on=2010-11-17",
      "festival": "ekadashi",
      "name": "Prabodhinī Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 29571,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-11-16T14:22:25+03:30",
          "utc": "2010-11-16T10:52:25Z",
          "ms": 1289904745270.1174
        },
        "end": {
          "local": "2010-11-17T16:36:24+03:30",
          "utc": "2010-11-17T13:06:24Z",
          "ms": 1289999184039.628
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-16T14:22:25+03:30",
          "utc": "2010-11-16T10:52:25Z",
          "ms": 1289904745270.1174
        },
        "end": {
          "local": "2010-11-17T16:36:24+03:30",
          "utc": "2010-11-17T13:06:24Z",
          "ms": 1289999184039.628
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-11-16",
          "window": {
            "start": {
              "local": "2010-11-16T06:09:35+03:30",
              "utc": "2010-11-16T02:39:35Z",
              "ms": 1289875174590.5464
            },
            "end": {
              "local": "2010-11-16T06:09:35+03:30",
              "utc": "2010-11-16T02:39:35Z",
              "ms": 1289875174590.5464
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-11-17",
          "window": {
            "start": {
              "local": "2010-11-17T06:10:35+03:30",
              "utc": "2010-11-17T02:40:35Z",
              "ms": 1289961635450.6484
            },
            "end": {
              "local": "2010-11-17T06:10:35+03:30",
              "utc": "2010-11-17T02:40:35Z",
              "ms": 1289961635450.6484
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 14:22 on Tue 16 Nov to 16:36 on Wed 17 Nov.",
          "fact": "2010-11-16T10:52:25Z → 2010-11-17T13:06:24Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:10 on the 16th and 06:11 on the 17th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 16th and is on the 17th.",
          "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 29571 s"
        },
        {
          "step": "ruling",
          "text": "Prabodhinī Ekādaśī, Mashhad, 2010: Wednesday 17 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": "2010-11-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Prabodhinī Ekādaśī 2010 falls on Wednesday 17 November. Ekādaśī runs from 14:22 on Tue 16 Nov to 16:36 on Wed 17 Nov and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-11-17",
      "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/2010/pradosha-vrata?on=2010-11-19",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-19",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 845,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-11-18T18:26:22+03:30",
          "utc": "2010-11-18T14:56:22Z",
          "ms": 1290092181768.2622
        },
        "end": {
          "local": "2010-11-19T19:47:13+03:30",
          "utc": "2010-11-19T16:17:13Z",
          "ms": 1290183432732.6123
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-18T18:26:22+03:30",
          "utc": "2010-11-18T14:56:22Z",
          "ms": 1290092181768.2622
        },
        "end": {
          "local": "2010-11-19T19:47:13+03:30",
          "utc": "2010-11-19T16:17:13Z",
          "ms": 1290183432732.6123
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-11-18",
          "window": {
            "start": {
              "local": "2010-11-18T16:21:28+03:30",
              "utc": "2010-11-18T12:51:28Z",
              "ms": 1290084687579.09
            },
            "end": {
              "local": "2010-11-18T18:12:17+03:30",
              "utc": "2010-11-18T14:42:17Z",
              "ms": 1290091336802.7273
            }
          },
          "covered_min": 0,
          "window_min": 111,
          "qualifies": false
        },
        {
          "local_date": "2010-11-19",
          "window": {
            "start": {
              "local": "2010-11-19T16:20:53+03:30",
              "utc": "2010-11-19T12:50:53Z",
              "ms": 1290171053162.452
            },
            "end": {
              "local": "2010-11-19T18:11:55+03:30",
              "utc": "2010-11-19T14:41:55Z",
              "ms": 1290177715025.4363
            }
          },
          "covered_min": 111,
          "window_min": 111,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 18:26 on Thu 18 Nov to 19:47 on Fri 19 Nov.",
          "fact": "2010-11-18T14:56:22Z → 2010-11-19T16:17:13Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:21–18:12 on the 18th, 16:21–18:12 on the 19th.",
          "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 18th and 111 of 111 on the 19th.",
          "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 845 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Friday 19 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": "2010-11-19",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-19",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Friday 19 November. Trayodaśī runs from 18:26 on Thu 18 Nov to 19:47 on Fri 19 Nov and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-11-19",
      "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/2010/rasayatra",
      "festival": "rasayatra",
      "name": "Rāsayātrā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 6983,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-11-20T20:37:15+03:30",
          "utc": "2010-11-20T17:07:15Z",
          "ms": 1290272835280.084
        },
        "end": {
          "local": "2010-11-21T20:57:20+03:30",
          "utc": "2010-11-21T17:27:20Z",
          "ms": 1290360440409.8506
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-20T20:37:15+03:30",
          "utc": "2010-11-20T17:07:15Z",
          "ms": 1290272835280.084
        },
        "end": {
          "local": "2010-11-21T20:57:20+03:30",
          "utc": "2010-11-21T17:27:20Z",
          "ms": 1290360440409.8506
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-11-20",
          "window": {
            "start": {
              "local": "2010-11-20T22:53:29+03:30",
              "utc": "2010-11-20T19:23:29Z",
              "ms": 1290281008929.3481
            },
            "end": {
              "local": "2010-11-20T23:41:29+03:30",
              "utc": "2010-11-20T20:11:29Z",
              "ms": 1290283888929.3481
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-11-21",
          "window": {
            "start": {
              "local": "2010-11-21T22:53:44+03:30",
              "utc": "2010-11-21T19:23:44Z",
              "ms": 1290367423504.498
            },
            "end": {
              "local": "2010-11-21T23:41:44+03:30",
              "utc": "2010-11-21T20:11:44Z",
              "ms": 1290370303504.498
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 20:37 on Sat 20 Nov to 20:57 on Sun 21 Nov.",
          "fact": "2010-11-20T17:07:15Z → 2010-11-21T17:27:20Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:53–23:41 on the 20th, 22:54–23:42 on the 21st.",
          "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 20th and 0 of 48 on the 21st.",
          "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 6983 s"
        },
        {
          "step": "ruling",
          "text": "Rāsayātrā, Mashhad, 2010: Saturday 20 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": "2010-11-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Rāsayātrā 2010 falls on Saturday 20 November. Pūrṇimā runs from 20:37 on Sat 20 Nov to 20:57 on Sun 21 Nov and covers all of niśītha that night.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/kartiki-purnima",
      "festival": "kartiki-purnima",
      "name": "Kārtikī Pūrṇimā",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-21",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 32176,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-11-20T20:37:15+03:30",
          "utc": "2010-11-20T17:07:15Z",
          "ms": 1290272835280.084
        },
        "end": {
          "local": "2010-11-21T20:57:20+03:30",
          "utc": "2010-11-21T17:27:20Z",
          "ms": 1290360440409.8506
        },
        "month": {
          "amanta": 7,
          "purnimanta": 7,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Kārtika"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-20T20:37:15+03:30",
          "utc": "2010-11-20T17:07:15Z",
          "ms": 1290272835280.084
        },
        "end": {
          "local": "2010-11-21T20:57:20+03:30",
          "utc": "2010-11-21T17:27:20Z",
          "ms": 1290360440409.8506
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-11-20",
          "window": {
            "start": {
              "local": "2010-11-20T10:52:59+03:30",
              "utc": "2010-11-20T07:22:59Z",
              "ms": 1290237778854.5347
            },
            "end": {
              "local": "2010-11-20T11:40:59+03:30",
              "utc": "2010-11-20T08:10:59Z",
              "ms": 1290240658854.5347
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-11-21",
          "window": {
            "start": {
              "local": "2010-11-21T10:53:14+03:30",
              "utc": "2010-11-21T07:23:14Z",
              "ms": 1290324193561.815
            },
            "end": {
              "local": "2010-11-21T11:41:14+03:30",
              "utc": "2010-11-21T08:11:14Z",
              "ms": 1290327073561.815
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 20:37 on Sat 20 Nov to 20:57 on Sun 21 Nov.",
          "fact": "2010-11-20T17:07:15Z → 2010-11-21T17:27:20Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:53–11:41 on the 20th, 10:53–11:41 on the 21st.",
          "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 20th and 48 of 48 on the 21st.",
          "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 32176 s"
        },
        {
          "step": "ruling",
          "text": "Kārtikī Pūrṇimā, Mashhad, 2010: Sunday 21 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": "2010-11-21",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-21",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kārtikī Pūrṇimā 2010 falls on Sunday 21 November. Pūrṇimā runs from 20:37 on Sat 20 Nov to 20:57 on Sun 21 Nov and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-11-24",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-11-24",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 2529,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-11-24T19:24:43+03:30",
          "utc": "2010-11-24T15:54:43Z",
          "ms": 1290614082789.904
        },
        "end": {
          "local": "2010-11-25T18:12:55+03:30",
          "utc": "2010-11-25T14:42:55Z",
          "ms": 1290696175080.769
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-11-24T19:24:43+03:30",
          "utc": "2010-11-24T15:54:43Z",
          "ms": 1290614082789.904
        },
        "end": {
          "local": "2010-11-25T18:12:55+03:30",
          "utc": "2010-11-25T14:42:55Z",
          "ms": 1290696175080.769
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-11-24",
          "window": {
            "start": {
              "local": "2010-11-24T18:42:34+03:30",
              "utc": "2010-11-24T15:12:34Z",
              "ms": 1290611553745.158
            },
            "end": {
              "local": "2010-11-24T18:42:34+03:30",
              "utc": "2010-11-24T15:12:34Z",
              "ms": 1290611553745.158
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-11-25",
          "window": {
            "start": {
              "local": "2010-11-25T19:48:45+03:30",
              "utc": "2010-11-25T16:18:45Z",
              "ms": 1290701925155.2717
            },
            "end": {
              "local": "2010-11-25T19:48:45+03:30",
              "utc": "2010-11-25T16:18:45Z",
              "ms": 1290701925155.2717
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 19:25 on Wed 24 Nov to 18:13 on Thu 25 Nov.",
          "fact": "2010-11-24T15:54:43Z → 2010-11-25T14:42:55Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 18:43 on the 24th and 19:49 on the 25th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 24th and is not on the 25th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Neither moonrise qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 2529 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Wednesday 24 November.",
          "fact": "confidence: boundary (absent-unstated)"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "sankashta-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.",
        "kaala": "moonrise",
        "priority": "unstated",
        "when_absent": "unstated"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-11-24",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-11-24",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Wednesday 24 November. Caturthī runs from 19:25 on Wed 24 Nov to 18:13 on Thu 25 Nov, and is current at moonrise on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-11-24",
      "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/2010/ekadashi?on=2010-12-01",
      "festival": "ekadashi",
      "name": "Utpannā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-01",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 513,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-12-01T06:32:50+03:30",
          "utc": "2010-12-01T03:02:50Z",
          "ms": 1291172570351.3833
        },
        "end": {
          "local": "2010-12-02T04:15:54+03:30",
          "utc": "2010-12-02T00:45:54Z",
          "ms": 1291250753924.098
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-01T06:32:50+03:30",
          "utc": "2010-12-01T03:02:50Z",
          "ms": 1291172570351.3833
        },
        "end": {
          "local": "2010-12-02T04:15:54+03:30",
          "utc": "2010-12-02T00:45:54Z",
          "ms": 1291250753924.098
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-12-01",
          "window": {
            "start": {
              "local": "2010-12-01T06:24:18+03:30",
              "utc": "2010-12-01T02:54:18Z",
              "ms": 1291172057755.9685
            },
            "end": {
              "local": "2010-12-01T06:24:18+03:30",
              "utc": "2010-12-01T02:54:18Z",
              "ms": 1291172057755.9685
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-12-02",
          "window": {
            "start": {
              "local": "2010-12-02T06:25:13+03:30",
              "utc": "2010-12-02T02:55:13Z",
              "ms": 1291258512745.6755
            },
            "end": {
              "local": "2010-12-02T06:25:13+03:30",
              "utc": "2010-12-02T02:55:13Z",
              "ms": 1291258512745.6755
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 06:33 on Wed 1 Dec to 04:16 on Thu 2 Dec.",
          "fact": "2010-12-01T03:02:50Z → 2010-12-02T00:45:54Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:24 on the 1st and 06:25 on the 2nd.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 1st and is not on the 2nd.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105"
        },
        {
          "step": "tie_break",
          "text": "Neither sunrise qualifies. The day the tithi falls on is taken.",
          "fact": "priority: paraviddha → tithi-day · margin 513 s"
        },
        {
          "step": "ruling",
          "text": "Utpannā Ekādaśī, Mashhad, 2010: Wednesday 1 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": "2010-12-01",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-01",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Utpannā Ekādaśī 2010 falls on Wednesday 1 December. Ekādaśī runs from 06:33 on Wed 1 Dec to 04:16 on Thu 2 Dec, and is current at sunrise on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-12-01",
      "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/2010/pradosha-vrata?on=2010-12-03",
      "festival": "pradosha-vrata",
      "name": "Kṛṣṇa Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-03",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 21289,
      "anga": {
        "type": "tithi",
        "index": 27,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-12-03T02:04:25+03:30",
          "utc": "2010-12-02T22:34:25Z",
          "ms": 1291329264816.8154
        },
        "end": {
          "local": "2010-12-04T00:04:29+03:30",
          "utc": "2010-12-03T20:34:29Z",
          "ms": 1291408468728.1726
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-03T02:04:25+03:30",
          "utc": "2010-12-02T22:34:25Z",
          "ms": 1291329264816.8154
        },
        "end": {
          "local": "2010-12-04T00:04:29+03:30",
          "utc": "2010-12-03T20:34:29Z",
          "ms": 1291408468728.1726
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-12-02",
          "window": {
            "start": {
              "local": "2010-12-02T16:16:20+03:30",
              "utc": "2010-12-02T12:46:20Z",
              "ms": 1291293980259.5896
            },
            "end": {
              "local": "2010-12-02T18:09:38+03:30",
              "utc": "2010-12-02T14:39:38Z",
              "ms": 1291300778489.5862
            }
          },
          "covered_min": 0,
          "window_min": 113,
          "qualifies": false
        },
        {
          "local_date": "2010-12-03",
          "window": {
            "start": {
              "local": "2010-12-03T16:16:13+03:30",
              "utc": "2010-12-03T12:46:13Z",
              "ms": 1291380373295.3704
            },
            "end": {
              "local": "2010-12-03T18:09:40+03:30",
              "utc": "2010-12-03T14:39:40Z",
              "ms": 1291387179578.5293
            }
          },
          "covered_min": 113,
          "window_min": 113,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 02:04 on Fri 3 Dec to 00:04 on Sat 4 Dec.",
          "fact": "2010-12-02T22:34:25Z → 2010-12-03T20:34:29Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:16–18:10 on the 2nd, 16:16–18:10 on the 3rd.",
          "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 113 minutes on the 2nd and 113 of 113 on the 3rd.",
          "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 21289 s"
        },
        {
          "step": "ruling",
          "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 2010: Friday 3 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": "2010-12-03",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-03",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 2010 falls on Friday 3 December. Trayodaśī runs from 02:04 on Fri 3 Dec to 00:04 on Sat 4 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-12-03",
      "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/2010/shivaratri?on=2010-12-03",
      "festival": "shivaratri",
      "name": "Śivarātri",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-03",
      "confidence": "boundary",
      "boundary_reasons": [
        "absent-unstated"
      ],
      "boundary_margin_s": 1132,
      "anga": {
        "type": "tithi",
        "index": 28,
        "key": "chaturdashi",
        "name": "Caturdaśī",
        "start": {
          "local": "2010-12-04T00:04:29+03:30",
          "utc": "2010-12-03T20:34:29Z",
          "ms": 1291408468728.1726
        },
        "end": {
          "local": "2010-12-04T22:22:41+03:30",
          "utc": "2010-12-04T18:52:41Z",
          "ms": 1291488761071.9202
        },
        "month": {
          "amanta": 7,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Kārtika",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-04T00:04:29+03:30",
          "utc": "2010-12-03T20:34:29Z",
          "ms": 1291408468728.1726
        },
        "end": {
          "local": "2010-12-04T22:22:41+03:30",
          "utc": "2010-12-04T18:52:41Z",
          "ms": 1291488761071.9202
        }
      },
      "kaala": "nishita",
      "days": [
        {
          "local_date": "2010-12-03",
          "window": {
            "start": {
              "local": "2010-12-03T22:57:37+03:30",
              "utc": "2010-12-03T19:27:37Z",
              "ms": 1291404456857.2158
            },
            "end": {
              "local": "2010-12-03T23:45:37+03:30",
              "utc": "2010-12-03T20:15:37Z",
              "ms": 1291407336857.2158
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-12-04",
          "window": {
            "start": {
              "local": "2010-12-04T22:58:01+03:30",
              "utc": "2010-12-04T19:28:01Z",
              "ms": 1291490880684.2087
            },
            "end": {
              "local": "2010-12-04T23:46:01+03:30",
              "utc": "2010-12-04T20:16:01Z",
              "ms": 1291493760684.2087
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "tithi-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturdaśī runs from 00:04 on Sat 4 Dec to 22:23 on Sat 4 Dec.",
          "fact": "2010-12-03T20:34:29Z → 2010-12-04T18:52:41Z"
        },
        {
          "step": "kaala",
          "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:58–23:46 on the 3rd, 22:58–23:46 on the 4th.",
          "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 3rd and 0 of 48 on the 4th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Neither night qualifies. The day the tithi falls on is taken.",
          "fact": "priority: unstated → tithi-day · margin 1132 s"
        },
        {
          "step": "ruling",
          "text": "Śivarātri, Mashhad, 2010: Friday 3 December.",
          "fact": "confidence: boundary (absent-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": "2010-12-03",
          "confidence": "boundary"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-03",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Śivarātri 2010 falls on Friday 3 December. Caturdaśī runs from 00:04 on Sat 4 Dec to 22:23 on Sat 4 Dec, and reaches niśītha on neither day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/shivaratri?on=2010-12-03",
      "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/2010/vinayaka-chaturthi?on=2010-12-09",
      "festival": "vinayaka-chaturthi",
      "name": "Vināyaka Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-09",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 31908,
      "anga": {
        "type": "tithi",
        "index": 3,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-12-08T20:39:05+03:30",
          "utc": "2010-12-08T17:09:05Z",
          "ms": 1291828145413.6665
        },
        "end": {
          "local": "2010-12-09T21:47:30+03:30",
          "utc": "2010-12-09T18:17:30Z",
          "ms": 1291918650481.3572
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-08T20:39:05+03:30",
          "utc": "2010-12-08T17:09:05Z",
          "ms": 1291828145413.6665
        },
        "end": {
          "local": "2010-12-09T21:47:30+03:30",
          "utc": "2010-12-09T18:17:30Z",
          "ms": 1291918650481.3572
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-12-08",
          "window": {
            "start": {
              "local": "2010-12-08T10:59:17+03:30",
              "utc": "2010-12-08T07:29:17Z",
              "ms": 1291793357017.621
            },
            "end": {
              "local": "2010-12-08T11:47:17+03:30",
              "utc": "2010-12-08T08:17:17Z",
              "ms": 1291796237017.621
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-12-09",
          "window": {
            "start": {
              "local": "2010-12-09T10:59:44+03:30",
              "utc": "2010-12-09T07:29:44Z",
              "ms": 1291879783916.0723
            },
            "end": {
              "local": "2010-12-09T11:47:44+03:30",
              "utc": "2010-12-09T08:17:44Z",
              "ms": 1291882663916.0723
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 20:39 on Wed 8 Dec to 21:48 on Thu 9 Dec.",
          "fact": "2010-12-08T17:09:05Z → 2010-12-09T18:17:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:59–11:47 on the 8th, 11:00–11:48 on the 9th.",
          "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 8th and 48 of 48 on the 9th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 31908 s"
        },
        {
          "step": "ruling",
          "text": "Vināyaka Caturthī, Mashhad, 2010: Thursday 9 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "vinayaka-chaturthi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 108",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday."
          }
        ],
        "kaala": "madhyahna",
        "priority": "unstated",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-12-09",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-09",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Vināyaka Caturthī 2010 falls on Thursday 9 December. Caturthī runs from 20:39 on Wed 8 Dec to 21:48 on Thu 9 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/vinayaka-chaturthi?on=2010-12-09",
      "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/2010/naga-panchami-margashirsha",
      "festival": "naga-panchami-margashirsha",
      "name": "Nāga Pañcamī (Mārgaśīrṣa)",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-10",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 35987,
      "anga": {
        "type": "tithi",
        "index": 4,
        "key": "panchami",
        "name": "Pañcamī",
        "start": {
          "local": "2010-12-09T21:47:30+03:30",
          "utc": "2010-12-09T18:17:30Z",
          "ms": 1291918650481.3572
        },
        "end": {
          "local": "2010-12-10T23:31:33+03:30",
          "utc": "2010-12-10T20:01:33Z",
          "ms": 1292011292608.517
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-09T21:47:30+03:30",
          "utc": "2010-12-09T18:17:30Z",
          "ms": 1291918650481.3572
        },
        "end": {
          "local": "2010-12-10T23:31:33+03:30",
          "utc": "2010-12-10T20:01:33Z",
          "ms": 1292011292608.517
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-12-09",
          "window": {
            "start": {
              "local": "2010-12-09T10:59:44+03:30",
              "utc": "2010-12-09T07:29:44Z",
              "ms": 1291879783916.0723
            },
            "end": {
              "local": "2010-12-09T11:47:44+03:30",
              "utc": "2010-12-09T08:17:44Z",
              "ms": 1291882663916.0723
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-12-10",
          "window": {
            "start": {
              "local": "2010-12-10T11:00:11+03:30",
              "utc": "2010-12-10T07:30:11Z",
              "ms": 1291966211248.5447
            },
            "end": {
              "local": "2010-12-10T11:48:11+03:30",
              "utc": "2010-12-10T08:18:11Z",
              "ms": 1291969091248.5447
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pañcamī runs from 21:48 on Thu 9 Dec to 23:32 on Fri 10 Dec.",
          "fact": "2010-12-09T18:17:30Z → 2010-12-10T20:01:33Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:00–11:48 on the 9th, 11:00–11:48 on the 10th.",
          "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 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 35987 s"
        },
        {
          "step": "ruling",
          "text": "Nāga Pañcamī (Mārgaśīrṣa), Mashhad, 2010: Friday 10 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": "2010-12-10",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-10",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Nāga Pañcamī (Mārgaśīrṣa) 2010 falls on Friday 10 December. Pañcamī runs from 21:48 on Thu 9 Dec to 23:32 on Fri 10 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/champa-shashthi",
      "festival": "champa-shashthi",
      "name": "Campā Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33453,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2010-12-10T23:31:33+03:30",
          "utc": "2010-12-10T20:01:33Z",
          "ms": 1292011292608.517
        },
        "end": {
          "local": "2010-12-12T01:43:34+03:30",
          "utc": "2010-12-11T22:13:34Z",
          "ms": 1292105614108.9421
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-10T23:31:33+03:30",
          "utc": "2010-12-10T20:01:33Z",
          "ms": 1292011292608.517
        },
        "end": {
          "local": "2010-12-12T01:43:34+03:30",
          "utc": "2010-12-11T22:13:34Z",
          "ms": 1292105614108.9421
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-12-11",
          "window": {
            "start": {
              "local": "2010-12-11T11:00:39+03:30",
              "utc": "2010-12-11T07:30:39Z",
              "ms": 1292052638983.3608
            },
            "end": {
              "local": "2010-12-11T11:48:39+03:30",
              "utc": "2010-12-11T08:18:39Z",
              "ms": 1292055518983.3608
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-12-12",
          "window": {
            "start": {
              "local": "2010-12-12T11:01:07+03:30",
              "utc": "2010-12-12T07:31:07Z",
              "ms": 1292139067088.7046
            },
            "end": {
              "local": "2010-12-12T11:49:07+03:30",
              "utc": "2010-12-12T08:19:07Z",
              "ms": 1292141947088.7046
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 23:32 on Fri 10 Dec to 01:44 on Sun 12 Dec.",
          "fact": "2010-12-10T20:01:33Z → 2010-12-11T22:13:34Z"
        },
        {
          "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": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: paraviddha → only-day · margin 33453 s"
        },
        {
          "step": "ruling",
          "text": "Campā Ṣaṣṭhī, Mashhad, 2010: Saturday 11 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": "2010-12-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Campā Ṣaṣṭhī 2010 falls on Saturday 11 December. Ṣaṣṭhī runs from 23:32 on Fri 10 Dec to 01:44 on Sun 12 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/skanda-shashthi",
      "festival": "skanda-shashthi",
      "name": "Skanda Ṣaṣṭhī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-11",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 33453,
      "anga": {
        "type": "tithi",
        "index": 5,
        "key": "shashthi",
        "name": "Ṣaṣṭhī",
        "start": {
          "local": "2010-12-10T23:31:33+03:30",
          "utc": "2010-12-10T20:01:33Z",
          "ms": 1292011292608.517
        },
        "end": {
          "local": "2010-12-12T01:43:34+03:30",
          "utc": "2010-12-11T22:13:34Z",
          "ms": 1292105614108.9421
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-10T23:31:33+03:30",
          "utc": "2010-12-10T20:01:33Z",
          "ms": 1292011292608.517
        },
        "end": {
          "local": "2010-12-12T01:43:34+03:30",
          "utc": "2010-12-11T22:13:34Z",
          "ms": 1292105614108.9421
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-12-11",
          "window": {
            "start": {
              "local": "2010-12-11T11:00:39+03:30",
              "utc": "2010-12-11T07:30:39Z",
              "ms": 1292052638983.3608
            },
            "end": {
              "local": "2010-12-11T11:48:39+03:30",
              "utc": "2010-12-11T08:18:39Z",
              "ms": 1292055518983.3608
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-12-12",
          "window": {
            "start": {
              "local": "2010-12-12T11:01:07+03:30",
              "utc": "2010-12-12T07:31:07Z",
              "ms": 1292139067088.7046
            },
            "end": {
              "local": "2010-12-12T11:49:07+03:30",
              "utc": "2010-12-12T08:19:07Z",
              "ms": 1292141947088.7046
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ṣaṣṭhī runs from 23:32 on Fri 10 Dec to 01:44 on Sun 12 Dec.",
          "fact": "2010-12-10T20:01:33Z → 2010-12-11T22:13:34Z"
        },
        {
          "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": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 33453 s"
        },
        {
          "step": "ruling",
          "text": "Skanda Ṣaṣṭhī, Mashhad, 2010: Saturday 11 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": "2010-12-11",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-11",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Skanda Ṣaṣṭhī 2010 falls on Saturday 11 December. Ṣaṣṭhī runs from 23:32 on Fri 10 Dec to 01:44 on Sun 12 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/mitra-saptami",
      "festival": "mitra-saptami",
      "name": "Mitra Saptamī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-12",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 24557,
      "anga": {
        "type": "tithi",
        "index": 6,
        "key": "saptami",
        "name": "Saptamī",
        "start": {
          "local": "2010-12-12T01:43:34+03:30",
          "utc": "2010-12-11T22:13:34Z",
          "ms": 1292105614108.9421
        },
        "end": {
          "local": "2010-12-13T04:12:18+03:30",
          "utc": "2010-12-13T00:42:18Z",
          "ms": 1292200938087.313
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-12T01:43:34+03:30",
          "utc": "2010-12-11T22:13:34Z",
          "ms": 1292105614108.9421
        },
        "end": {
          "local": "2010-12-13T04:12:18+03:30",
          "utc": "2010-12-13T00:42:18Z",
          "ms": 1292200938087.313
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-12-12",
          "window": {
            "start": {
              "local": "2010-12-12T11:01:07+03:30",
              "utc": "2010-12-12T07:31:07Z",
              "ms": 1292139067088.7046
            },
            "end": {
              "local": "2010-12-12T11:49:07+03:30",
              "utc": "2010-12-12T08:19:07Z",
              "ms": 1292141947088.7046
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        },
        {
          "local_date": "2010-12-13",
          "window": {
            "start": {
              "local": "2010-12-13T11:01:36+03:30",
              "utc": "2010-12-13T07:31:36Z",
              "ms": 1292225495532.829
            },
            "end": {
              "local": "2010-12-13T11:49:36+03:30",
              "utc": "2010-12-13T08:19:36Z",
              "ms": 1292228375532.829
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Saptamī runs from 01:44 on Sun 12 Dec to 04:12 on Mon 13 Dec.",
          "fact": "2010-12-11T22:13:34Z → 2010-12-13T00:42:18Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:01–11:49 on the 12th, 11:02–11:50 on the 13th.",
          "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 12th and 0 of 48 on the 13th.",
          "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one midday qualifies. No tie-break is needed.",
          "fact": "priority: purvaviddha → only-day · margin 24557 s"
        },
        {
          "step": "ruling",
          "text": "Mitra Saptamī, Mashhad, 2010: Sunday 12 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": "2010-12-12",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-12",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mitra Saptamī 2010 falls on Sunday 12 December. Saptamī runs from 01:44 on Sun 12 Dec to 04:12 on Mon 13 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/ekadashi?on=2010-12-17",
      "festival": "ekadashi",
      "name": "Mokṣadā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-17",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 15936,
      "anga": {
        "type": "tithi",
        "index": 10,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-12-16T11:01:56+03:30",
          "utc": "2010-12-16T07:31:56Z",
          "ms": 1292484715750.3574
        },
        "end": {
          "local": "2010-12-17T12:26:16+03:30",
          "utc": "2010-12-17T08:56:16Z",
          "ms": 1292576175969.7046
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-16T11:01:56+03:30",
          "utc": "2010-12-16T07:31:56Z",
          "ms": 1292484715750.3574
        },
        "end": {
          "local": "2010-12-17T12:26:16+03:30",
          "utc": "2010-12-17T08:56:16Z",
          "ms": 1292576175969.7046
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-12-16",
          "window": {
            "start": {
              "local": "2010-12-16T06:36:19+03:30",
              "utc": "2010-12-16T03:06:19Z",
              "ms": 1292468779313.0442
            },
            "end": {
              "local": "2010-12-16T06:36:19+03:30",
              "utc": "2010-12-16T03:06:19Z",
              "ms": 1292468779313.0442
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-12-17",
          "window": {
            "start": {
              "local": "2010-12-17T06:36:58+03:30",
              "utc": "2010-12-17T03:06:58Z",
              "ms": 1292555217505.0742
            },
            "end": {
              "local": "2010-12-17T06:36:58+03:30",
              "utc": "2010-12-17T03:06:58Z",
              "ms": 1292555217505.0742
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 11:02 on Thu 16 Dec to 12:26 on Fri 17 Dec.",
          "fact": "2010-12-16T07:31:56Z → 2010-12-17T08:56:16Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:36 on the 16th and 06:37 on the 17th.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 16th and is on the 17th.",
          "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 15936 s"
        },
        {
          "step": "ruling",
          "text": "Mokṣadā Ekādaśī, Mashhad, 2010: Friday 17 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": "2010-12-17",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-17",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Mokṣadā Ekādaśī 2010 falls on Friday 17 December. Ekādaśī runs from 11:02 on Thu 16 Dec to 12:26 on Fri 17 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-12-17",
      "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/2010/akhanda-dvadashi",
      "festival": "akhanda-dvadashi",
      "name": "Akhaṇḍa Dvādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 2084,
      "anga": {
        "type": "tithi",
        "index": 11,
        "key": "dvadashi",
        "name": "Dvādaśī",
        "start": {
          "local": "2010-12-17T12:26:16+03:30",
          "utc": "2010-12-17T08:56:16Z",
          "ms": 1292576175969.7046
        },
        "end": {
          "local": "2010-12-18T13:12:30+03:30",
          "utc": "2010-12-18T09:42:30Z",
          "ms": 1292665349622.315
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-17T12:26:16+03:30",
          "utc": "2010-12-17T08:56:16Z",
          "ms": 1292576175969.7046
        },
        "end": {
          "local": "2010-12-18T13:12:30+03:30",
          "utc": "2010-12-18T09:42:30Z",
          "ms": 1292665349622.315
        }
      },
      "kaala": "madhyahna",
      "days": [
        {
          "local_date": "2010-12-17",
          "window": {
            "start": {
              "local": "2010-12-17T11:03:32+03:30",
              "utc": "2010-12-17T07:33:32Z",
              "ms": 1292571212060.3838
            },
            "end": {
              "local": "2010-12-17T11:51:32+03:30",
              "utc": "2010-12-17T08:21:32Z",
              "ms": 1292574092060.3838
            }
          },
          "covered_min": 0,
          "window_min": 48,
          "qualifies": false
        },
        {
          "local_date": "2010-12-18",
          "window": {
            "start": {
              "local": "2010-12-18T11:04:02+03:30",
              "utc": "2010-12-18T07:34:02Z",
              "ms": 1292657641721.4468
            },
            "end": {
              "local": "2010-12-18T11:52:02+03:30",
              "utc": "2010-12-18T08:22:02Z",
              "ms": 1292660521721.4468
            }
          },
          "covered_min": 48,
          "window_min": 48,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Dvādaśī runs from 12:26 on Fri 17 Dec to 13:12 on Sat 18 Dec.",
          "fact": "2010-12-17T08:56:16Z → 2010-12-18T09:42:30Z"
        },
        {
          "step": "kaala",
          "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 17th, 11:04–11:52 on the 18th.",
          "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 17th and 48 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 2084 s"
        },
        {
          "step": "ruling",
          "text": "Akhaṇḍa Dvādaśī, Mashhad, 2010: Saturday 18 December.",
          "fact": "confidence: determinate"
        }
      ],
      "rule": {
        "kind": "lunar",
        "id": "akhanda-dvadashi",
        "references": [
          {
            "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
            "locator": "p. 104",
            "url": "https://archive.org/details/calendar_reform_comittee_report",
            "quote": "S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa)."
          }
        ],
        "kaala": "madhyahna",
        "priority": "paraviddha",
        "when_absent": "second-day"
      },
      "alternatives": [
        {
          "kind": "profile",
          "profile": "classical@2026.1",
          "local_date": "2010-12-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-18",
          "confidence": "boundary"
        }
      ],
      "quote": "In Mashhad, Akhaṇḍa Dvādaśī 2010 falls on Saturday 18 December. Dvādaśī runs from 12:26 on Fri 17 Dec to 13:12 on Sat 18 Dec and covers all of madhyāhna that midday.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/pradosha-vrata?on=2010-12-18",
      "festival": "pradosha-vrata",
      "name": "Śukla Pradoṣa Vrata",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-18",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 10783,
      "anga": {
        "type": "tithi",
        "index": 12,
        "key": "trayodashi",
        "name": "Trayodaśī",
        "start": {
          "local": "2010-12-18T13:12:30+03:30",
          "utc": "2010-12-18T09:42:30Z",
          "ms": 1292665349622.315
        },
        "end": {
          "local": "2010-12-19T13:19:11+03:30",
          "utc": "2010-12-19T09:49:11Z",
          "ms": 1292752151204.0146
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-18T13:12:30+03:30",
          "utc": "2010-12-18T09:42:30Z",
          "ms": 1292665349622.315
        },
        "end": {
          "local": "2010-12-19T13:19:11+03:30",
          "utc": "2010-12-19T09:49:11Z",
          "ms": 1292752151204.0146
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-12-18",
          "window": {
            "start": {
              "local": "2010-12-18T16:18:29+03:30",
              "utc": "2010-12-18T12:48:29Z",
              "ms": 1292676509244.424
            },
            "end": {
              "local": "2010-12-18T18:13:07+03:30",
              "utc": "2010-12-18T14:43:07Z",
              "ms": 1292683386592.489
            }
          },
          "covered_min": 115,
          "window_min": 115,
          "qualifies": true
        },
        {
          "local_date": "2010-12-19",
          "window": {
            "start": {
              "local": "2010-12-19T16:18:54+03:30",
              "utc": "2010-12-19T12:48:54Z",
              "ms": 1292762933708.1487
            },
            "end": {
              "local": "2010-12-19T18:13:32+03:30",
              "utc": "2010-12-19T14:43:32Z",
              "ms": 1292769812272.1335
            }
          },
          "covered_min": 0,
          "window_min": 115,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Trayodaśī runs from 13:12 on Sat 18 Dec to 13:19 on Sun 19 Dec.",
          "fact": "2010-12-18T09:42:30Z → 2010-12-19T09:49:11Z"
        },
        {
          "step": "kaala",
          "text": "Pradoṣa is 2 muhūrtas after sunset: 16:18–18:13 on the 18th, 16:19–18:14 on the 19th.",
          "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 18th and 0 of 115 on the 19th.",
          "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 10783 s"
        },
        {
          "step": "ruling",
          "text": "Śukla Pradoṣa Vrata, Mashhad, 2010: Saturday 18 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": "2010-12-18",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-18",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Śukla Pradoṣa Vrata 2010 falls on Saturday 18 December. Trayodaśī runs from 13:12 on Sat 18 Dec to 13:19 on Sun 19 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/pradosha-vrata?on=2010-12-18",
      "method": "pac-rp@2026.1",
      "engine": {
        "version": "0.1.0",
        "ruleset": "2026.3-draft",
        "kernel": "de440-1900-2100",
        "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
        "tzdata": "2026f"
      }
    },
    {
      "id": "/mashhad/festivals/2010/dattatreyotpatti",
      "festival": "dattatreyotpatti",
      "name": "Dattātreyotpatti",
      "everyday": "Datta Jayanti",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-20",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 12672,
      "anga": {
        "type": "tithi",
        "index": 14,
        "key": "purnima",
        "name": "Pūrṇimā",
        "start": {
          "local": "2010-12-20T12:48:08+03:30",
          "utc": "2010-12-20T09:18:08Z",
          "ms": 1292836688108.4814
        },
        "end": {
          "local": "2010-12-21T11:43:27+03:30",
          "utc": "2010-12-21T08:13:27Z",
          "ms": 1292919207486.289
        },
        "month": {
          "amanta": 8,
          "purnimanta": 8,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Mārgaśīrṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-20T12:48:08+03:30",
          "utc": "2010-12-20T09:18:08Z",
          "ms": 1292836688108.4814
        },
        "end": {
          "local": "2010-12-21T11:43:27+03:30",
          "utc": "2010-12-21T08:13:27Z",
          "ms": 1292919207486.289
        }
      },
      "kaala": "pradosha",
      "days": [
        {
          "local_date": "2010-12-20",
          "window": {
            "start": {
              "local": "2010-12-20T16:19:20+03:30",
              "utc": "2010-12-20T12:49:20Z",
              "ms": 1292849359981.9094
            },
            "end": {
              "local": "2010-12-20T18:13:59+03:30",
              "utc": "2010-12-20T14:43:59Z",
              "ms": 1292856239306.1018
            }
          },
          "covered_min": 115,
          "window_min": 115,
          "qualifies": true
        },
        {
          "local_date": "2010-12-21",
          "window": {
            "start": {
              "local": "2010-12-21T16:19:48+03:30",
              "utc": "2010-12-21T12:49:48Z",
              "ms": 1292935788039.7708
            },
            "end": {
              "local": "2010-12-21T18:14:28+03:30",
              "utc": "2010-12-21T14:44:28Z",
              "ms": 1292942667667.5437
            }
          },
          "covered_min": 0,
          "window_min": 115,
          "qualifies": false
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Pūrṇimā runs from 12:48 on Mon 20 Dec to 11:43 on Tue 21 Dec.",
          "fact": "2010-12-20T09:18:08Z → 2010-12-21T08:13:27Z"
        },
        {
          "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": "Pūrṇimā 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. 104"
        },
        {
          "step": "tie_break",
          "text": "Only one evening qualifies. No tie-break is needed.",
          "fact": "priority: unstated → only-day · margin 12672 s"
        },
        {
          "step": "ruling",
          "text": "Dattātreyotpatti, Mashhad, 2010: Monday 20 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": "2010-12-20",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-20",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Dattātreyotpatti (Datta Jayanti) 2010 falls on Monday 20 December. Pūrṇimā runs from 12:48 on Mon 20 Dec to 11:43 on Tue 21 Dec and covers all of pradoṣa that evening.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/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/2010/sankashta-chaturthi?on=2010-12-24",
      "festival": "sankashta-chaturthi",
      "name": "Saṅkaṣṭa Caturthī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-24",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 28357,
      "anga": {
        "type": "tithi",
        "index": 18,
        "key": "chaturthi",
        "name": "Caturthī",
        "start": {
          "local": "2010-12-24T06:06:34+03:30",
          "utc": "2010-12-24T02:36:34Z",
          "ms": 1293158193831.6582
        },
        "end": {
          "local": "2010-12-25T03:47:51+03:30",
          "utc": "2010-12-25T00:17:51Z",
          "ms": 1293236271465.4802
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-24T06:06:34+03:30",
          "utc": "2010-12-24T02:36:34Z",
          "ms": 1293158193831.6582
        },
        "end": {
          "local": "2010-12-25T03:47:51+03:30",
          "utc": "2010-12-25T00:17:51Z",
          "ms": 1293236271465.4802
        }
      },
      "kaala": "moonrise",
      "days": [
        {
          "local_date": "2010-12-23",
          "window": {
            "start": {
              "local": "2010-12-23T18:45:03+03:30",
              "utc": "2010-12-23T15:15:03Z",
              "ms": 1293117303043.9912
            },
            "end": {
              "local": "2010-12-23T18:45:03+03:30",
              "utc": "2010-12-23T15:15:03Z",
              "ms": 1293117303043.9912
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-12-24",
          "window": {
            "start": {
              "local": "2010-12-24T19:55:14+03:30",
              "utc": "2010-12-24T16:25:14Z",
              "ms": 1293207914264.7979
            },
            "end": {
              "local": "2010-12-24T19:55:14+03:30",
              "utc": "2010-12-24T16:25:14Z",
              "ms": 1293207914264.7979
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Caturthī runs from 06:07 on Fri 24 Dec to 03:48 on Sat 25 Dec.",
          "fact": "2010-12-24T02:36:34Z → 2010-12-25T00:17:51Z"
        },
        {
          "step": "kaala",
          "text": "Moonrise is at 18:45 on the 23rd and 19:55 on the 24th.",
          "fact": "moonrise: disc centre, 31′"
        },
        {
          "step": "rule",
          "text": "Caturthī must be current at moonrise. It is not on the 23rd and is on the 24th.",
          "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 28357 s"
        },
        {
          "step": "ruling",
          "text": "Saṅkaṣṭa Caturthī, Mashhad, 2010: Friday 24 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": "2010-12-24",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-24",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saṅkaṣṭa Caturthī 2010 falls on Friday 24 December. Caturthī runs from 06:07 on Fri 24 Dec to 03:48 on Sat 25 Dec and is current at moonrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/sankashta-chaturthi?on=2010-12-24",
      "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/2010/ekadashi?on=2010-12-31",
      "festival": "ekadashi",
      "name": "Saphalā Ekādaśī",
      "tradition": "smarta",
      "place": "124665",
      "year": 2010,
      "local_date": "2010-12-31",
      "confidence": "determinate",
      "boundary_reasons": [],
      "boundary_margin_s": 26358,
      "anga": {
        "type": "tithi",
        "index": 25,
        "key": "ekadashi",
        "name": "Ekādaśī",
        "start": {
          "local": "2010-12-30T15:20:35+03:30",
          "utc": "2010-12-30T11:50:35Z",
          "ms": 1293709834680.5312
        },
        "end": {
          "local": "2010-12-31T14:02:18+03:30",
          "utc": "2010-12-31T10:32:18Z",
          "ms": 1293791537897.1084
        },
        "month": {
          "amanta": 8,
          "purnimanta": 9,
          "adhika": false,
          "amanta_name": "Mārgaśīrṣa",
          "purnimanta_name": "Pauṣa"
        }
      },
      "span": {
        "of": "tithi",
        "start": {
          "local": "2010-12-30T15:20:35+03:30",
          "utc": "2010-12-30T11:50:35Z",
          "ms": 1293709834680.5312
        },
        "end": {
          "local": "2010-12-31T14:02:18+03:30",
          "utc": "2010-12-31T10:32:18Z",
          "ms": 1293791537897.1084
        }
      },
      "kaala": "sunrise",
      "days": [
        {
          "local_date": "2010-12-30",
          "window": {
            "start": {
              "local": "2010-12-30T06:42:45+03:30",
              "utc": "2010-12-30T03:12:45Z",
              "ms": 1293678765361.8748
            },
            "end": {
              "local": "2010-12-30T06:42:45+03:30",
              "utc": "2010-12-30T03:12:45Z",
              "ms": 1293678765361.8748
            }
          },
          "covered_min": 0,
          "window_min": 0,
          "qualifies": false
        },
        {
          "local_date": "2010-12-31",
          "window": {
            "start": {
              "local": "2010-12-31T06:43:00+03:30",
              "utc": "2010-12-31T03:13:00Z",
              "ms": 1293765179665.8855
            },
            "end": {
              "local": "2010-12-31T06:43:00+03:30",
              "utc": "2010-12-31T03:13:00Z",
              "ms": 1293765179665.8855
            }
          },
          "covered_min": 1,
          "window_min": 0,
          "qualifies": true
        }
      ],
      "decided_by": "only-day",
      "explanation": [
        {
          "step": "anga",
          "text": "Ekādaśī runs from 15:21 on Thu 30 Dec to 14:02 on Fri 31 Dec.",
          "fact": "2010-12-30T11:50:35Z → 2010-12-31T10:32:18Z"
        },
        {
          "step": "kaala",
          "text": "Sunrise is at 06:43 on the 30th and 06:43 on the 31st.",
          "fact": "sunrise: upper limb, 31′ + 16′"
        },
        {
          "step": "rule",
          "text": "Ekādaśī must be current at sunrise. It is not on the 30th and is on the 31st.",
          "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 26358 s"
        },
        {
          "step": "ruling",
          "text": "Saphalā Ekādaśī, Mashhad, 2010: Friday 31 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": "2010-12-31",
          "confidence": "determinate"
        },
        {
          "kind": "profile",
          "profile": "compat-drikpanchang@2026.1",
          "local_date": "2010-12-31",
          "confidence": "determinate"
        }
      ],
      "quote": "In Mashhad, Saphalā Ekādaśī 2010 falls on Friday 31 December. Ekādaśī runs from 15:21 on Thu 30 Dec to 14:02 on Fri 31 Dec and is current at sunrise that day.",
      "cite": "https://ahargana.org/mashhad/festivals/2010/ekadashi?on=2010-12-31",
      "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"
  }
}