{ "id": "/mashhad/festivals/1983", "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": 1983, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/mashhad/festivals/1983/sankashta-chaturthi?on=1983-01-02", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18836, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-01-02T04:14:01+03:30", "utc": "1983-01-02T00:44:01Z", "ms": 410316241047.50714 }, "end": { "local": "1983-01-03T01:12:31+03:30", "utc": "1983-01-02T21:42:31Z", "ms": 410391751418.09827 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-01-02T04:14:01+03:30", "utc": "1983-01-02T00:44:01Z", "ms": 410316241047.50714 }, "end": { "local": "1983-01-03T01:12:31+03:30", "utc": "1983-01-02T21:42:31Z", "ms": 410391751418.09827 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-01-01", "window": { "start": { "local": "1983-01-01T18:45:52+03:30", "utc": "1983-01-01T15:15:52Z", "ms": 410282152299.36304 }, "end": { "local": "1983-01-01T18:45:52+03:30", "utc": "1983-01-01T15:15:52Z", "ms": 410282152299.36304 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-01-02", "window": { "start": { "local": "1983-01-02T19:58:35+03:30", "utc": "1983-01-02T16:28:35Z", "ms": 410372915183.0747 }, "end": { "local": "1983-01-02T19:58:35+03:30", "utc": "1983-01-02T16:28:35Z", "ms": 410372915183.0747 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:14 on Sun 2 Jan to 01:13 on Mon 3 Jan.", "fact": "1983-01-02T00:44:01Z → 1983-01-02T21:42:31Z" }, { "step": "kaala", "text": "Moonrise is at 18:46 on the 1st and 19:59 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 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 18836 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Sunday 2 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": "1983-01-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-02", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Sunday 2 January. Caturthī runs from 04:14 on Sun 2 Jan to 01:13 on Mon 3 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-01-02", "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/1983/ekadashi?on=1983-01-09", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29202, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-01-08T20:55:46+03:30", "utc": "1983-01-08T17:25:46Z", "ms": 410894745586.6664 }, "end": { "local": "1983-01-09T22:36:59+03:30", "utc": "1983-01-09T19:06:59Z", "ms": 410987219442.37744 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-01-08T20:55:46+03:30", "utc": "1983-01-08T17:25:46Z", "ms": 410894745586.6664 }, "end": { "local": "1983-01-09T22:36:59+03:30", "utc": "1983-01-09T19:06:59Z", "ms": 410987219442.37744 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-01-09", "window": { "start": { "local": "1983-01-09T06:43:46+03:30", "utc": "1983-01-09T03:13:46Z", "ms": 410930026011.2488 }, "end": { "local": "1983-01-09T06:43:46+03:30", "utc": "1983-01-09T03:13:46Z", "ms": 410930026011.2488 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-01-10", "window": { "start": { "local": "1983-01-10T06:43:41+03:30", "utc": "1983-01-10T03:13:41Z", "ms": 411016421096.7218 }, "end": { "local": "1983-01-10T06:43:41+03:30", "utc": "1983-01-10T03:13:41Z", "ms": 411016421096.7218 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:56 on Sat 8 Jan to 22:37 on Sun 9 Jan.", "fact": "1983-01-08T17:25:46Z → 1983-01-09T19:06:59Z" }, { "step": "kaala", "text": "Sunrise is at 06:44 on the 9th and 06:44 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 29202 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Mashhad, 1983: Sunday 9 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": "1983-01-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-09", "confidence": "determinate" } ], "quote": "In Mashhad, Saphalā Ekādaśī 1983 falls on Sunday 9 January. Ekādaśī runs from 20:56 on Sat 8 Jan to 22:37 on Sun 9 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-01-09", "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/1983/pradosha-vrata?on=1983-01-11", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22698, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-01-11T00:45:51+03:30", "utc": "1983-01-10T21:15:51Z", "ms": 411081351437.88104 }, "end": { "local": "1983-01-12T03:14:07+03:30", "utc": "1983-01-11T23:44:07Z", "ms": 411176647484.76337 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-01-11T00:45:51+03:30", "utc": "1983-01-10T21:15:51Z", "ms": 411081351437.88104 }, "end": { "local": "1983-01-12T03:14:07+03:30", "utc": "1983-01-11T23:44:07Z", "ms": 411176647484.76337 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-01-10", "window": { "start": { "local": "1983-01-10T16:34:19+03:30", "utc": "1983-01-10T13:04:19Z", "ms": 411051859039.54376 }, "end": { "local": "1983-01-10T18:27:33+03:30", "utc": "1983-01-10T14:57:33Z", "ms": 411058653061.2001 } }, "covered_min": 0, "window_min": 113, "qualifies": false }, { "local_date": "1983-01-11", "window": { "start": { "local": "1983-01-11T16:35:15+03:30", "utc": "1983-01-11T13:05:15Z", "ms": 411138315233.7289 }, "end": { "local": "1983-01-11T18:28:21+03:30", "utc": "1983-01-11T14:58:21Z", "ms": 411145100579.4632 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:46 on Tue 11 Jan to 03:14 on Wed 12 Jan.", "fact": "1983-01-10T21:15:51Z → 1983-01-11T23:44:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:34–18:28 on the 10th, 16:35–18:28 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 113 minutes on the 10th and 113 of 113 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 22698 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Tuesday 11 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": "1983-01-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-11", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Tuesday 11 January. Trayodaśī runs from 00:46 on Tue 11 Jan to 03:14 on Wed 12 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-01-11", "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/1983/shivaratri?on=1983-01-12", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11447, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-01-12T03:14:07+03:30", "utc": "1983-01-11T23:44:07Z", "ms": 411176647484.76337 }, "end": { "local": "1983-01-13T05:53:50+03:30", "utc": "1983-01-13T02:23:50Z", "ms": 411272630252.8609 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-01-12T03:14:07+03:30", "utc": "1983-01-11T23:44:07Z", "ms": 411176647484.76337 }, "end": { "local": "1983-01-13T05:53:50+03:30", "utc": "1983-01-13T02:23:50Z", "ms": 411272630252.8609 } }, "kaala": "nishita", "days": [ { "local_date": "1983-01-11", "window": { "start": { "local": "1983-01-11T23:15:20+03:30", "utc": "1983-01-11T19:45:20Z", "ms": 411162320280.23254 }, "end": { "local": "1983-01-12T00:03:20+03:30", "utc": "1983-01-11T20:33:20Z", "ms": 411165200280.23254 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-01-12", "window": { "start": { "local": "1983-01-12T23:15:43+03:30", "utc": "1983-01-12T19:45:43Z", "ms": 411248743365.5141 }, "end": { "local": "1983-01-13T00:03:43+03:30", "utc": "1983-01-12T20:33:43Z", "ms": 411251623365.5141 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:14 on Wed 12 Jan to 05:54 on Thu 13 Jan.", "fact": "1983-01-11T23:44:07Z → 1983-01-13T02:23:50Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:15–00:03 on the 11th, 23:16–00:04 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 11447 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Wednesday 12 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": "1983-01-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-12", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Wednesday 12 January. Caturdaśī runs from 03:14 on Wed 12 Jan to 05:54 on Thu 13 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-01-12", "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/1983/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15447, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 }, "end": { "local": "1983-02-13T01:20:34+03:30", "utc": "1983-02-12T21:50:34Z", "ms": 413934633752.1754 } }, "span": { "of": "transit", "start": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 }, "end": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 } }, "kaala": "sunset-day", "days": [ { "local_date": "1983-01-14", "window": { "start": { "local": "1983-01-13T16:37:10+03:30", "utc": "1983-01-13T13:07:10Z", "ms": 411311230061.3919 }, "end": { "local": "1983-01-14T16:38:09+03:30", "utc": "1983-01-14T13:08:09Z", "ms": 411397688588.1619 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1983-01-15", "window": { "start": { "local": "1983-01-14T16:38:09+03:30", "utc": "1983-01-14T13:08:09Z", "ms": 411397688588.1619 }, "end": { "local": "1983-01-15T16:39:08+03:30", "utc": "1983-01-15T13:09:08Z", "ms": 411484147786.38873 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1983-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 12:21 on Fri 14 Jan.", "fact": "1983-01-14T08:50:42Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 16:38, and the day of the 15th ends at 16:39.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 15447 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Friday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Mashhad, 1983: Thursday 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": "1983-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1983-01-13", "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": "1983-01-13", "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 1983 falls on Thursday 13 January. It is kept the day before Pongal, which falls on Friday 14 January. The Sun enters Makara at 12:21 on Fri 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/1983/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/1983/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15447, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 }, "end": { "local": "1983-02-13T01:20:34+03:30", "utc": "1983-02-12T21:50:34Z", "ms": 413934633752.1754 } }, "span": { "of": "transit", "start": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 }, "end": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 } }, "kaala": "sunset-day", "days": [ { "local_date": "1983-01-14", "window": { "start": { "local": "1983-01-13T16:37:10+03:30", "utc": "1983-01-13T13:07:10Z", "ms": 411311230061.3919 }, "end": { "local": "1983-01-14T16:38:09+03:30", "utc": "1983-01-14T13:08:09Z", "ms": 411397688588.1619 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1983-01-15", "window": { "start": { "local": "1983-01-14T16:38:09+03:30", "utc": "1983-01-14T13:08:09Z", "ms": 411397688588.1619 }, "end": { "local": "1983-01-15T16:39:08+03:30", "utc": "1983-01-15T13:09:08Z", "ms": 411484147786.38873 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 12:21 on Fri 14 Jan.", "fact": "1983-01-14T08:50:42Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 16:38, and the day of the 15th ends at 16:39.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 15447 s" }, { "step": "ruling", "text": "Pongal, Mashhad, 1983: Friday 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": "1983-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1983-01-14", "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": "1983-01-14", "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 1983 falls on Friday 14 January. The Sun enters Makara at 12:21 on Fri 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/1983/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/1983/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 41958, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 }, "end": { "local": "1983-02-13T01:20:34+03:30", "utc": "1983-02-12T21:50:34Z", "ms": 413934633752.1754 } }, "span": { "of": "transit", "start": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 }, "end": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 } }, "kaala": "civil-day", "days": [ { "local_date": "1983-01-14", "window": { "start": { "local": "1983-01-14T00:00:00+03:30", "utc": "1983-01-13T20:30:00Z", "ms": 411337800000 }, "end": { "local": "1983-01-15T00:00:00+03:30", "utc": "1983-01-14T20:30:00Z", "ms": 411424200000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "1983-01-15", "window": { "start": { "local": "1983-01-15T00:00:00+03:30", "utc": "1983-01-14T20:30:00Z", "ms": 411424200000 }, "end": { "local": "1983-01-16T00:00:00+03:30", "utc": "1983-01-15T20:30:00Z", "ms": 411510600000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 12:21 on Fri 14 Jan.", "fact": "1983-01-14T08:50:42Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Mashhad.", "fact": "civil-day: midnight-to-midnight · Asia/Tehran" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 14th, not the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 41958 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Mashhad, 1983: Friday 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": "1983-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1983-01-14", "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": "1983-01-14", "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 1983 falls on Friday 14 January. The Sun enters Makara at 12:21 on Fri 14 Jan, and the rule counts the day from midnight.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15447, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 }, "end": { "local": "1983-02-13T01:20:34+03:30", "utc": "1983-02-12T21:50:34Z", "ms": 413934633752.1754 } }, "span": { "of": "transit", "start": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 }, "end": { "local": "1983-01-14T12:20:42+03:30", "utc": "1983-01-14T08:50:42Z", "ms": 411382241553.98114 } }, "kaala": "sunset-day", "days": [ { "local_date": "1983-01-14", "window": { "start": { "local": "1983-01-13T16:37:10+03:30", "utc": "1983-01-13T13:07:10Z", "ms": 411311230061.3919 }, "end": { "local": "1983-01-14T16:38:09+03:30", "utc": "1983-01-14T13:08:09Z", "ms": 411397688588.1619 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1983-01-15", "window": { "start": { "local": "1983-01-14T16:38:09+03:30", "utc": "1983-01-14T13:08:09Z", "ms": 411397688588.1619 }, "end": { "local": "1983-01-15T16:39:08+03:30", "utc": "1983-01-15T13:09:08Z", "ms": 411484147786.38873 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1983-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 12:21 on Fri 14 Jan.", "fact": "1983-01-14T08:50:42Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 16:38, and the day of the 15th ends at 16:39.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 15447 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Friday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Mashhad, 1983: Saturday 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": "1983-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1983-01-15", "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": "1983-01-15", "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 1983 falls on Saturday 15 January. It is kept the day after Pongal, which falls on Friday 14 January. The Sun enters Makara at 12:21 on Fri 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/1983/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/1983/vinayaka-chaturthi?on=1983-01-18", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14804, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-01-17T16:12:24+03:30", "utc": "1983-01-17T12:42:24Z", "ms": 411655344149.88025 }, "end": { "local": "1983-01-18T18:11:40+03:30", "utc": "1983-01-18T14:41:40Z", "ms": 411748899782.4871 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-01-17T16:12:24+03:30", "utc": "1983-01-17T12:42:24Z", "ms": 411655344149.88025 }, "end": { "local": "1983-01-18T18:11:40+03:30", "utc": "1983-01-18T14:41:40Z", "ms": 411748899782.4871 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-01-17", "window": { "start": { "local": "1983-01-17T11:17:40+03:30", "utc": "1983-01-17T07:47:40Z", "ms": 411637659667.14136 }, "end": { "local": "1983-01-17T12:05:40+03:30", "utc": "1983-01-17T08:35:40Z", "ms": 411640539667.14136 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-01-18", "window": { "start": { "local": "1983-01-18T11:18:00+03:30", "utc": "1983-01-18T07:48:00Z", "ms": 411724079781.7379 }, "end": { "local": "1983-01-18T12:06:00+03:30", "utc": "1983-01-18T08:36:00Z", "ms": 411726959781.7379 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:12 on Mon 17 Jan to 18:12 on Tue 18 Jan.", "fact": "1983-01-17T12:42:24Z → 1983-01-18T14:41:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:18–12:06 on the 17th, 11:18–12:06 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 14804 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Tuesday 18 January.", "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": "1983-01-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-18", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Tuesday 18 January. Caturthī runs from 16:12 on Mon 17 Jan to 18:12 on Tue 18 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-01-18", "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/1983/ekadashi?on=1983-01-25", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32466, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-01-24T18:02:35+03:30", "utc": "1983-01-24T14:32:35Z", "ms": 412266755119.08813 }, "end": { "local": "1983-01-25T15:39:38+03:30", "utc": "1983-01-25T12:09:38Z", "ms": 412344578457.7685 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-01-24T18:02:35+03:30", "utc": "1983-01-24T14:32:35Z", "ms": 412266755119.08813 }, "end": { "local": "1983-01-25T15:39:38+03:30", "utc": "1983-01-25T12:09:38Z", "ms": 412344578457.7685 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-01-24", "window": { "start": { "local": "1983-01-24T06:39:06+03:30", "utc": "1983-01-24T03:09:06Z", "ms": 412225746484.39185 }, "end": { "local": "1983-01-24T06:39:06+03:30", "utc": "1983-01-24T03:09:06Z", "ms": 412225746484.39185 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-01-25", "window": { "start": { "local": "1983-01-25T06:38:33+03:30", "utc": "1983-01-25T03:08:33Z", "ms": 412312112600.08685 }, "end": { "local": "1983-01-25T06:38:33+03:30", "utc": "1983-01-25T03:08:33Z", "ms": 412312112600.08685 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:03 on Mon 24 Jan to 15:40 on Tue 25 Jan.", "fact": "1983-01-24T14:32:35Z → 1983-01-25T12:09:38Z" }, { "step": "kaala", "text": "Sunrise is at 06:39 on the 24th and 06:39 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 32466 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Mashhad, 1983: Tuesday 25 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": "1983-01-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-25", "confidence": "determinate" } ], "quote": "In Mashhad, Putradā Ekādaśī 1983 falls on Tuesday 25 January. Ekādaśī runs from 18:03 on Mon 24 Jan to 15:40 on Tue 25 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-01-25", "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/1983/pradosha-vrata?on=1983-01-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14822, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-01-26T12:43:27+03:30", "utc": "1983-01-26T09:13:27Z", "ms": 412420406811.8454 }, "end": { "local": "1983-01-27T09:21:25+03:30", "utc": "1983-01-27T05:51:25Z", "ms": 412494685433.488 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-01-26T12:43:27+03:30", "utc": "1983-01-26T09:13:27Z", "ms": 412420406811.8454 }, "end": { "local": "1983-01-27T09:21:25+03:30", "utc": "1983-01-27T05:51:25Z", "ms": 412494685433.488 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-01-26", "window": { "start": { "local": "1983-01-26T16:50:29+03:30", "utc": "1983-01-26T13:20:29Z", "ms": 412435229167.99994 }, "end": { "local": "1983-01-26T18:40:44+03:30", "utc": "1983-01-26T15:10:44Z", "ms": 412441843872.9977 } }, "covered_min": 110, "window_min": 110, "qualifies": true }, { "local_date": "1983-01-27", "window": { "start": { "local": "1983-01-27T16:51:33+03:30", "utc": "1983-01-27T13:21:33Z", "ms": 412521692707.02826 }, "end": { "local": "1983-01-27T18:41:34+03:30", "utc": "1983-01-27T15:11:34Z", "ms": 412528293713.0987 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:43 on Wed 26 Jan to 09:21 on Thu 27 Jan.", "fact": "1983-01-26T09:13:27Z → 1983-01-27T05:51:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:50–18:41 on the 26th, 16:52–18:42 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 110 of 110 minutes on the 26th and 0 of 110 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14822 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Wednesday 26 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": "1983-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-26", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Wednesday 26 January. Trayodaśī runs from 12:43 on Wed 26 Jan to 09:21 on Thu 27 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-01-26", "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/1983/sankashta-chaturthi?on=1983-01-31", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15315, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-01-31T15:41:24+03:30", "utc": "1983-01-31T12:11:24Z", "ms": 412863084277.94354 }, "end": { "local": "1983-02-01T13:12:40+03:30", "utc": "1983-02-01T09:42:40Z", "ms": 412940560309.9897 }, "month": { "amanta": 9, "purnimanta": 11, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-01-31T15:41:24+03:30", "utc": "1983-01-31T12:11:24Z", "ms": 412863084277.94354 }, "end": { "local": "1983-02-01T13:12:40+03:30", "utc": "1983-02-01T09:42:40Z", "ms": 412940560309.9897 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-01-31", "window": { "start": { "local": "1983-01-31T19:56:39+03:30", "utc": "1983-01-31T16:26:39Z", "ms": 412878398882.4226 }, "end": { "local": "1983-01-31T19:56:39+03:30", "utc": "1983-01-31T16:26:39Z", "ms": 412878398882.4226 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-02-01", "window": { "start": { "local": "1983-02-01T21:04:53+03:30", "utc": "1983-02-01T17:34:53Z", "ms": 412968892687.89514 }, "end": { "local": "1983-02-01T21:04:53+03:30", "utc": "1983-02-01T17:34:53Z", "ms": 412968892687.89514 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:41 on Mon 31 Jan to 13:13 on Tue 1 Feb.", "fact": "1983-01-31T12:11:24Z → 1983-02-01T09:42:40Z" }, { "step": "kaala", "text": "Moonrise is at 19:57 on the 31st and 21:05 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 31st and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15315 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Monday 31 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": "1983-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-01-31", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Monday 31 January. Caturthī runs from 15:41 on Mon 31 Jan to 13:13 on Tue 1 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-01-31", "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/1983/ekadashi?on=1983-02-08", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30734, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-02-07T15:00:53+03:30", "utc": "1983-02-07T11:30:53Z", "ms": 413465452808.42755 }, "end": { "local": "1983-02-08T17:34:48+03:30", "utc": "1983-02-08T14:04:48Z", "ms": 413561087696.81573 }, "month": { "amanta": 9, "purnimanta": 11, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-02-07T15:00:53+03:30", "utc": "1983-02-07T11:30:53Z", "ms": 413465452808.42755 }, "end": { "local": "1983-02-08T17:34:48+03:30", "utc": "1983-02-08T14:04:48Z", "ms": 413561087696.81573 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-02-07", "window": { "start": { "local": "1983-02-07T06:28:39+03:30", "utc": "1983-02-07T02:58:39Z", "ms": 413434719036.4225 }, "end": { "local": "1983-02-07T06:28:39+03:30", "utc": "1983-02-07T02:58:39Z", "ms": 413434719036.4225 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-02-08", "window": { "start": { "local": "1983-02-08T06:27:43+03:30", "utc": "1983-02-08T02:57:43Z", "ms": 413521062659.3102 }, "end": { "local": "1983-02-08T06:27:43+03:30", "utc": "1983-02-08T02:57:43Z", "ms": 413521062659.3102 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:01 on Mon 7 Feb to 17:35 on Tue 8 Feb.", "fact": "1983-02-07T11:30:53Z → 1983-02-08T14:04:48Z" }, { "step": "kaala", "text": "Sunrise is at 06:29 on the 7th and 06:28 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 30734 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Mashhad, 1983: Tuesday 8 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": "1983-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-02-08", "confidence": "determinate" } ], "quote": "In Mashhad, Ṣaṭtilā Ekādaśī 1983 falls on Tuesday 8 February. Ekādaśī runs from 15:01 on Mon 7 Feb to 17:35 on Tue 8 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-02-08", "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/1983/pradosha-vrata?on=1983-02-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-02-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5280, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-02-09T20:20:03+03:30", "utc": "1983-02-09T16:50:03Z", "ms": 413657402744.9766 }, "end": { "local": "1983-02-10T23:05:12+03:30", "utc": "1983-02-10T19:35:12Z", "ms": 413753712243.6952 }, "month": { "amanta": 9, "purnimanta": 11, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-02-09T20:20:03+03:30", "utc": "1983-02-09T16:50:03Z", "ms": 413657402744.9766 }, "end": { "local": "1983-02-10T23:05:12+03:30", "utc": "1983-02-10T19:35:12Z", "ms": 413753712243.6952 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-02-09", "window": { "start": { "local": "1983-02-09T17:05:19+03:30", "utc": "1983-02-09T13:35:19Z", "ms": 413645718991.7196 }, "end": { "local": "1983-02-09T18:52:03+03:30", "utc": "1983-02-09T15:22:03Z", "ms": 413652122564.3837 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1983-02-10", "window": { "start": { "local": "1983-02-10T17:06:22+03:30", "utc": "1983-02-10T13:36:22Z", "ms": 413732181729.9705 }, "end": { "local": "1983-02-10T18:52:49+03:30", "utc": "1983-02-10T15:22:49Z", "ms": 413738568879.29315 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:20 on Wed 9 Feb to 23:05 on Thu 10 Feb.", "fact": "1983-02-09T16:50:03Z → 1983-02-10T19:35:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:05–18:52 on the 9th, 17:06–18:53 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 107 minutes on the 9th and 106 of 106 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 5280 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Thursday 10 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": "1983-02-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-02-10", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Thursday 10 February. Trayodaśī runs from 20:20 on Wed 9 Feb to 23:05 on Thu 10 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-02-10", "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/1983/shivaratri?on=1983-02-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-02-10", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 981, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-02-10T23:05:12+03:30", "utc": "1983-02-10T19:35:12Z", "ms": 413753712243.6952 }, "end": { "local": "1983-02-12T01:41:14+03:30", "utc": "1983-02-11T22:11:14Z", "ms": 413849473875.45844 }, "month": { "amanta": 9, "purnimanta": 11, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-02-10T23:05:12+03:30", "utc": "1983-02-10T19:35:12Z", "ms": 413753712243.6952 }, "end": { "local": "1983-02-12T01:41:14+03:30", "utc": "1983-02-11T22:11:14Z", "ms": 413849473875.45844 } }, "kaala": "nishita", "days": [ { "local_date": "1983-02-10", "window": { "start": { "local": "1983-02-10T23:21:34+03:30", "utc": "1983-02-10T19:51:34Z", "ms": 413754693539.9303 }, "end": { "local": "1983-02-11T00:09:34+03:30", "utc": "1983-02-10T20:39:34Z", "ms": 413757573539.9303 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-02-11", "window": { "start": { "local": "1983-02-11T23:21:34+03:30", "utc": "1983-02-11T19:51:34Z", "ms": 413841093929.5416 }, "end": { "local": "1983-02-12T00:09:34+03:30", "utc": "1983-02-11T20:39:34Z", "ms": 413843973929.5416 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:05 on Thu 10 Feb to 01:41 on Sat 12 Feb.", "fact": "1983-02-10T19:35:12Z → 1983-02-11T22:11:14Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:22–00:10 on the 10th, 23:22–00:10 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 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both nights qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 981 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Thursday 10 February.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-02-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-02-10", "confidence": "boundary" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Thursday 10 February. Caturdaśī runs from 23:05 on Thu 10 Feb to 01:41 on Sat 12 Feb and covers all of niśītha that night. It also reaches the next night for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-02-10", "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/1983/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-02-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10579, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-02-10T23:05:12+03:30", "utc": "1983-02-10T19:35:12Z", "ms": 413753712243.6952 }, "end": { "local": "1983-02-12T01:41:14+03:30", "utc": "1983-02-11T22:11:14Z", "ms": 413849473875.45844 }, "month": { "amanta": 9, "purnimanta": 11, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-02-10T23:05:12+03:30", "utc": "1983-02-10T19:35:12Z", "ms": 413753712243.6952 }, "end": { "local": "1983-02-12T01:41:14+03:30", "utc": "1983-02-11T22:11:14Z", "ms": 413849473875.45844 } }, "kaala": "arunodaya", "days": [ { "local_date": "1983-02-11", "window": { "start": { "local": "1983-02-11T04:38:18+03:30", "utc": "1983-02-11T01:08:18Z", "ms": 413773698200.56744 }, "end": { "local": "1983-02-11T06:24:45+03:30", "utc": "1983-02-11T02:54:45Z", "ms": 413780085349.8901 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1983-02-12", "window": { "start": { "local": "1983-02-12T04:37:33+03:30", "utc": "1983-02-12T01:07:33Z", "ms": 413860053034.7782 }, "end": { "local": "1983-02-12T06:23:44+03:30", "utc": "1983-02-12T02:53:44Z", "ms": 413866423618.50055 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:05 on Thu 10 Feb to 01:41 on Sat 12 Feb.", "fact": "1983-02-10T19:35:12Z → 1983-02-11T22:11:14Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:38–06:25 on the 11th, 04:38–06:24 on the 12th.", "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 106 of 106 minutes on the 11th and 0 of 106 on the 12th.", "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 10579 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Mashhad, 1983: Friday 11 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-02-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-02-11", "confidence": "determinate" } ], "quote": "In Mashhad, Yama Tarpaṇa 1983 falls on Friday 11 February. Caturdaśī runs from 23:05 on Thu 10 Feb to 01:41 on Sat 12 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vinayaka-chaturthi?on=1983-02-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5533, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-02-16T08:58:35+03:30", "utc": "1983-02-16T05:28:35Z", "ms": 414221315303.12946 }, "end": { "local": "1983-02-17T09:49:42+03:30", "utc": "1983-02-17T06:19:42Z", "ms": 414310782422.4143 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": true, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-02-16T08:58:35+03:30", "utc": "1983-02-16T05:28:35Z", "ms": 414221315303.12946 }, "end": { "local": "1983-02-17T09:49:42+03:30", "utc": "1983-02-17T06:19:42Z", "ms": 414310782422.4143 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-02-16", "window": { "start": { "local": "1983-02-16T11:21:59+03:30", "utc": "1983-02-16T07:51:59Z", "ms": 414229918554.95654 }, "end": { "local": "1983-02-16T12:09:59+03:30", "utc": "1983-02-16T08:39:59Z", "ms": 414232798554.95654 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-02-17", "window": { "start": { "local": "1983-02-17T11:21:55+03:30", "utc": "1983-02-17T07:51:55Z", "ms": 414316315073.81006 }, "end": { "local": "1983-02-17T12:09:55+03:30", "utc": "1983-02-17T08:39:55Z", "ms": 414319195073.81006 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:59 on Wed 16 Feb to 09:50 on Thu 17 Feb.", "fact": "1983-02-16T05:28:35Z → 1983-02-17T06:19:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 16th, 11:22–12:10 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5533 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Wednesday 16 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": "1983-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-02-16", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Wednesday 16 February. Caturthī runs from 08:59 on Wed 16 Feb to 09:50 on Thu 17 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-02-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1983/ekadashi?on=1983-02-23", "festival": "ekadashi", "name": "Śukla Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-02-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6293, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-02-23T04:26:14+03:30", "utc": "1983-02-23T00:56:14Z", "ms": 414809774418.90784 }, "end": { "local": "1983-02-24T01:43:44+03:30", "utc": "1983-02-23T22:13:44Z", "ms": 414886424406.47797 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": true, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-02-23T04:26:14+03:30", "utc": "1983-02-23T00:56:14Z", "ms": 414809774418.90784 }, "end": { "local": "1983-02-24T01:43:44+03:30", "utc": "1983-02-23T22:13:44Z", "ms": 414886424406.47797 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-02-23", "window": { "start": { "local": "1983-02-23T06:11:08+03:30", "utc": "1983-02-23T02:41:08Z", "ms": 414816067652.8747 }, "end": { "local": "1983-02-23T06:11:08+03:30", "utc": "1983-02-23T02:41:08Z", "ms": 414816067652.8747 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-02-24", "window": { "start": { "local": "1983-02-24T06:09:53+03:30", "utc": "1983-02-24T02:39:53Z", "ms": 414902392747.4777 }, "end": { "local": "1983-02-24T06:09:53+03:30", "utc": "1983-02-24T02:39:53Z", "ms": 414902392747.4777 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:26 on Wed 23 Feb to 01:44 on Thu 24 Feb.", "fact": "1983-02-23T00:56:14Z → 1983-02-23T22:13:44Z" }, { "step": "kaala", "text": "Sunrise is at 06:11 on the 23rd and 06:10 on the 24th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 23rd and is not on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6293 s" }, { "step": "ruling", "text": "Śukla Ekādaśī, Mashhad, 1983: Wednesday 23 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": "1983-02-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-02-23", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Ekādaśī 1983 falls on Wednesday 23 February. Ekādaśī runs from 04:26 on Wed 23 Feb to 01:44 on Thu 24 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-02-23", "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/1983/pradosha-vrata?on=1983-02-25", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-02-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 877, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-02-24T22:38:36+03:30", "utc": "1983-02-24T19:08:36Z", "ms": 414961716279.048 }, "end": { "local": "1983-02-25T19:18:12+03:30", "utc": "1983-02-25T15:48:12Z", "ms": 415036092013.19293 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": true, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-02-24T22:38:36+03:30", "utc": "1983-02-24T19:08:36Z", "ms": 414961716279.048 }, "end": { "local": "1983-02-25T19:18:12+03:30", "utc": "1983-02-25T15:48:12Z", "ms": 415036092013.19293 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-02-24", "window": { "start": { "local": "1983-02-24T17:20:30+03:30", "utc": "1983-02-24T13:50:30Z", "ms": 414942629561.4392 }, "end": { "local": "1983-02-24T19:02:55+03:30", "utc": "1983-02-24T15:32:55Z", "ms": 414948774547.5452 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "1983-02-25", "window": { "start": { "local": "1983-02-25T17:21:28+03:30", "utc": "1983-02-25T13:51:28Z", "ms": 415029087575.4998 }, "end": { "local": "1983-02-25T19:03:35+03:30", "utc": "1983-02-25T15:33:35Z", "ms": 415035214607.82263 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:39 on Thu 24 Feb to 19:18 on Fri 25 Feb.", "fact": "1983-02-24T19:08:36Z → 1983-02-25T15:48:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:20–19:03 on the 24th, 17:21–19:04 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 102 minutes on the 24th and 102 of 102 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 877 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Friday 25 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": "1983-02-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-02-25", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Friday 25 February. Trayodaśī runs from 22:39 on Thu 24 Feb to 19:18 on Fri 25 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-02-25", "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/1983/sankashta-chaturthi?on=1983-03-02", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21897, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-03-02T04:25:55+03:30", "utc": "1983-03-02T00:55:55Z", "ms": 415414554583.8803 }, "end": { "local": "1983-03-03T03:00:59+03:30", "utc": "1983-03-02T23:30:59Z", "ms": 415495858666.5352 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": true, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-03-02T04:25:55+03:30", "utc": "1983-03-02T00:55:55Z", "ms": 415414554583.8803 }, "end": { "local": "1983-03-03T03:00:59+03:30", "utc": "1983-03-02T23:30:59Z", "ms": 415495858666.5352 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-03-01", "window": { "start": { "local": "1983-03-01T19:49:52+03:30", "utc": "1983-03-01T16:19:52Z", "ms": 415383591675.3532 }, "end": { "local": "1983-03-01T19:49:52+03:30", "utc": "1983-03-01T16:19:52Z", "ms": 415383591675.3532 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-03-02", "window": { "start": { "local": "1983-03-02T20:56:01+03:30", "utc": "1983-03-02T17:26:01Z", "ms": 415473961192.71326 }, "end": { "local": "1983-03-02T20:56:01+03:30", "utc": "1983-03-02T17:26:01Z", "ms": 415473961192.71326 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:26 on Wed 2 Mar to 03:01 on Thu 3 Mar.", "fact": "1983-03-02T00:55:55Z → 1983-03-02T23:30:59Z" }, { "step": "kaala", "text": "Moonrise is at 19:50 on the 1st and 20:56 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 21897 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Wednesday 2 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": "1983-03-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-02", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Wednesday 2 March. Caturthī runs from 04:26 on Wed 2 Mar to 03:01 on Thu 3 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-03-02", "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/1983/ekadashi?on=1983-03-10", "festival": "ekadashi", "name": "Kṛṣṇa Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17948, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-03-09T10:51:39+03:30", "utc": "1983-03-09T07:21:39Z", "ms": 416042498871.4809 }, "end": { "local": "1983-03-10T13:33:58+03:30", "utc": "1983-03-10T10:03:58Z", "ms": 416138638349.8841 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": true, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-03-09T10:51:39+03:30", "utc": "1983-03-09T07:21:39Z", "ms": 416042498871.4809 }, "end": { "local": "1983-03-10T13:33:58+03:30", "utc": "1983-03-10T10:03:58Z", "ms": 416138638349.8841 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-03-09", "window": { "start": { "local": "1983-03-09T05:52:31+03:30", "utc": "1983-03-09T02:22:31Z", "ms": 416024551112.4962 }, "end": { "local": "1983-03-09T05:52:31+03:30", "utc": "1983-03-09T02:22:31Z", "ms": 416024551112.4962 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-03-10", "window": { "start": { "local": "1983-03-10T05:51:07+03:30", "utc": "1983-03-10T02:21:07Z", "ms": 416110866920.5277 }, "end": { "local": "1983-03-10T05:51:07+03:30", "utc": "1983-03-10T02:21:07Z", "ms": 416110866920.5277 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:52 on Wed 9 Mar to 13:34 on Thu 10 Mar.", "fact": "1983-03-09T07:21:39Z → 1983-03-10T10:03:58Z" }, { "step": "kaala", "text": "Sunrise is at 05:53 on the 9th and 05:51 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 17948 s" }, { "step": "ruling", "text": "Kṛṣṇa Ekādaśī, Mashhad, 1983: Thursday 10 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": "1983-03-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-10", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Ekādaśī 1983 falls on Thursday 10 March. Ekādaśī runs from 10:52 on Wed 9 Mar to 13:34 on Thu 10 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-03-10", "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/1983/pradosha-vrata?on=1983-03-11", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-11", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2356, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-03-11T16:04:47+03:30", "utc": "1983-03-11T12:34:47Z", "ms": 416234086693.9889 }, "end": { "local": "1983-03-12T18:14:38+03:30", "utc": "1983-03-12T14:44:38Z", "ms": 416328277680.0652 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": true, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-03-11T16:04:47+03:30", "utc": "1983-03-11T12:34:47Z", "ms": 416234086693.9889 }, "end": { "local": "1983-03-12T18:14:38+03:30", "utc": "1983-03-12T14:44:38Z", "ms": 416328277680.0652 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-03-11", "window": { "start": { "local": "1983-03-11T17:34:28+03:30", "utc": "1983-03-11T14:04:28Z", "ms": 416239467530.5582 }, "end": { "local": "1983-03-11T19:12:18+03:30", "utc": "1983-03-11T15:42:18Z", "ms": 416245338164.406 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "1983-03-12", "window": { "start": { "local": "1983-03-12T17:35:21+03:30", "utc": "1983-03-12T14:05:21Z", "ms": 416325921255.2657 }, "end": { "local": "1983-03-12T19:12:53+03:30", "utc": "1983-03-12T15:42:53Z", "ms": 416331773340.8571 } }, "covered_min": 39, "window_min": 98, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:05 on Fri 11 Mar to 18:15 on Sat 12 Mar.", "fact": "1983-03-11T12:34:47Z → 1983-03-12T14:44:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:34–19:12 on the 11th, 17:35–19:13 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 98 of 98 minutes on the 11th and 39 of 98 on the 12th.", "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 2356 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Friday 11 March.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-03-11", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-11", "confidence": "boundary" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Friday 11 March. Trayodaśī runs from 16:05 on Fri 11 Mar to 18:15 on Sat 12 Mar and covers all of pradoṣa that evening. It also reaches the next evening for 39 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-03-11", "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/1983/shivaratri?on=1983-03-12", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11923, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-03-12T18:14:38+03:30", "utc": "1983-03-12T14:44:38Z", "ms": 416328277680.0652 }, "end": { "local": "1983-03-13T19:58:08+03:30", "utc": "1983-03-13T16:28:08Z", "ms": 416420887853.2054 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": true, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-03-12T18:14:38+03:30", "utc": "1983-03-12T14:44:38Z", "ms": 416328277680.0652 }, "end": { "local": "1983-03-13T19:58:08+03:30", "utc": "1983-03-13T16:28:08Z", "ms": 416420887853.2054 } }, "kaala": "nishita", "days": [ { "local_date": "1983-03-12", "window": { "start": { "local": "1983-03-12T23:17:07+03:30", "utc": "1983-03-12T19:47:07Z", "ms": 416346426576.23346 }, "end": { "local": "1983-03-13T00:05:07+03:30", "utc": "1983-03-12T20:35:07Z", "ms": 416349306576.23346 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-03-13", "window": { "start": { "local": "1983-03-13T23:16:50+03:30", "utc": "1983-03-13T19:46:50Z", "ms": 416432810459.7338 }, "end": { "local": "1983-03-14T00:04:50+03:30", "utc": "1983-03-13T20:34:50Z", "ms": 416435690459.7338 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:15 on Sat 12 Mar to 19:58 on Sun 13 Mar.", "fact": "1983-03-12T14:44:38Z → 1983-03-13T16:28:08Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:17–00:05 on the 12th, 23:17–00:05 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 11923 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Saturday 12 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": "1983-03-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-12", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Saturday 12 March. Caturdaśī runs from 18:15 on Sat 12 Mar to 19:58 on Sun 13 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-03-12", "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/1983/vinayaka-chaturthi?on=1983-03-18", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35685, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-03-17T22:21:53+03:30", "utc": "1983-03-17T18:51:53Z", "ms": 416775113478.59094 }, "end": { "local": "1983-03-18T21:58:55+03:30", "utc": "1983-03-18T18:28:55Z", "ms": 416860134627.93414 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-03-17T22:21:53+03:30", "utc": "1983-03-17T18:51:53Z", "ms": 416775113478.59094 }, "end": { "local": "1983-03-18T21:58:55+03:30", "utc": "1983-03-18T18:28:55Z", "ms": 416860134627.93414 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-03-17", "window": { "start": { "local": "1983-03-17T11:16:27+03:30", "utc": "1983-03-17T07:46:27Z", "ms": 416735186890.39197 }, "end": { "local": "1983-03-17T12:04:27+03:30", "utc": "1983-03-17T08:34:27Z", "ms": 416738066890.39197 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-03-18", "window": { "start": { "local": "1983-03-18T11:16:10+03:30", "utc": "1983-03-18T07:46:10Z", "ms": 416821569704.1771 }, "end": { "local": "1983-03-18T12:04:10+03:30", "utc": "1983-03-18T08:34:10Z", "ms": 416824449704.1771 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:22 on Thu 17 Mar to 21:59 on Fri 18 Mar.", "fact": "1983-03-17T18:51:53Z → 1983-03-18T18:28:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:16–12:04 on the 17th, 11:16–12:04 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "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 35685 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Friday 18 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": "1983-03-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-18", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Friday 18 March. Caturthī runs from 22:22 on Thu 17 Mar to 21:59 on Fri 18 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-03-18", "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/1983/ekadashi?on=1983-03-25", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15585, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-03-24T12:28:36+03:30", "utc": "1983-03-24T08:58:36Z", "ms": 417344316330.10614 }, "end": { "local": "1983-03-25T09:49:13+03:30", "utc": "1983-03-25T06:19:13Z", "ms": 417421153107.66 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-03-24T12:28:36+03:30", "utc": "1983-03-24T08:58:36Z", "ms": 417344316330.10614 }, "end": { "local": "1983-03-25T09:49:13+03:30", "utc": "1983-03-25T06:19:13Z", "ms": 417421153107.66 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-03-24", "window": { "start": { "local": "1983-03-24T05:30:56+03:30", "utc": "1983-03-24T02:00:56Z", "ms": 417319256210.3896 }, "end": { "local": "1983-03-24T05:30:56+03:30", "utc": "1983-03-24T02:00:56Z", "ms": 417319256210.3896 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-03-25", "window": { "start": { "local": "1983-03-25T05:29:29+03:30", "utc": "1983-03-25T01:59:29Z", "ms": 417405568579.04395 }, "end": { "local": "1983-03-25T05:29:29+03:30", "utc": "1983-03-25T01:59:29Z", "ms": 417405568579.04395 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:29 on Thu 24 Mar to 09:49 on Fri 25 Mar.", "fact": "1983-03-24T08:58:36Z → 1983-03-25T06:19:13Z" }, { "step": "kaala", "text": "Sunrise is at 05:31 on the 24th and 05:29 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 15585 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Mashhad, 1983: Friday 25 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": "1983-03-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-25", "confidence": "determinate" } ], "quote": "In Mashhad, Āmalakī Ekādaśī 1983 falls on Friday 25 March. Ekādaśī runs from 12:29 on Thu 24 Mar to 09:49 on Fri 25 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-03-25", "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/1983/pradosha-vrata?on=1983-03-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31755, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-03-26T07:00:39+03:30", "utc": "1983-03-26T03:30:39Z", "ms": 417497439357.12585 }, "end": { "local": "1983-03-27T04:09:59+03:30", "utc": "1983-03-27T00:39:59Z", "ms": 417573599275.30396 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-03-26T07:00:39+03:30", "utc": "1983-03-26T03:30:39Z", "ms": 417497439357.12585 }, "end": { "local": "1983-03-27T04:09:59+03:30", "utc": "1983-03-27T00:39:59Z", "ms": 417573599275.30396 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-03-25", "window": { "start": { "local": "1983-03-25T17:46:41+03:30", "utc": "1983-03-25T14:16:41Z", "ms": 417449801291.4346 }, "end": { "local": "1983-03-25T19:20:12+03:30", "utc": "1983-03-25T15:50:12Z", "ms": 417455411913.1414 } }, "covered_min": 0, "window_min": 94, "qualifies": false }, { "local_date": "1983-03-26", "window": { "start": { "local": "1983-03-26T17:47:32+03:30", "utc": "1983-03-26T14:17:32Z", "ms": 417536252476.17456 }, "end": { "local": "1983-03-26T19:20:45+03:30", "utc": "1983-03-26T15:50:45Z", "ms": 417541844595.10114 } }, "covered_min": 93, "window_min": 93, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:01 on Sat 26 Mar to 04:10 on Sun 27 Mar.", "fact": "1983-03-26T03:30:39Z → 1983-03-27T00:39:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:47–19:20 on the 25th, 17:48–19:21 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 94 minutes on the 25th and 93 of 93 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 31755 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Saturday 26 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": "1983-03-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-26", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Saturday 26 March. Trayodaśī runs from 07:01 on Sat 26 Mar to 04:10 on Sun 27 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-03-26", "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/1983/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18445, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-03-28T01:25:35+03:30", "utc": "1983-03-27T21:55:35Z", "ms": 417650134967.7902 }, "end": { "local": "1983-03-28T22:56:40+03:30", "utc": "1983-03-28T19:26:40Z", "ms": 417727599521.2212 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-03-28T01:25:35+03:30", "utc": "1983-03-27T21:55:35Z", "ms": 417650134967.7902 }, "end": { "local": "1983-03-28T22:56:40+03:30", "utc": "1983-03-28T19:26:40Z", "ms": 417727599521.2212 } }, "kaala": "sayahna", "days": [ { "local_date": "1983-03-27", "window": { "start": { "local": "1983-03-27T15:20:02+03:30", "utc": "1983-03-27T11:50:02Z", "ms": 417613801521.4415 }, "end": { "local": "1983-03-27T17:48:24+03:30", "utc": "1983-03-27T14:18:24Z", "ms": 417622703559.7709 } }, "covered_min": 0, "window_min": 148, "qualifies": false }, { "local_date": "1983-03-28", "window": { "start": { "local": "1983-03-28T15:20:25+03:30", "utc": "1983-03-28T11:50:25Z", "ms": 417700224817.7771 }, "end": { "local": "1983-03-28T17:49:15+03:30", "utc": "1983-03-28T14:19:15Z", "ms": 417709154558.9932 } }, "covered_min": 149, "window_min": 149, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:26 on Mon 28 Mar to 22:57 on Mon 28 Mar.", "fact": "1983-03-27T21:55:35Z → 1983-03-28T19:26:40Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:20–17:48 on the 27th, 15:20–17:49 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 148 minutes on the 27th and 149 of 149 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 18445 s" }, { "step": "ruling", "text": "Holikā Dahana, Mashhad, 1983: Monday 28 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "holika-dahana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana." } ], "not_evaluated": "The hour the row gives for the rite (\"it should be observed on second half of purnima at night\") is not tested: sāyāhna alone settles the day.", "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-28", "confidence": "determinate" } ], "quote": "In Mashhad, Holikā Dahana 1983 falls on Monday 28 March. Pūrṇimā runs from 01:26 on Mon 28 Mar to 22:57 on Mon 28 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18445, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-03-28T01:25:35+03:30", "utc": "1983-03-27T21:55:35Z", "ms": 417650134967.7902 }, "end": { "local": "1983-03-28T22:56:40+03:30", "utc": "1983-03-28T19:26:40Z", "ms": 417727599521.2212 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1983-03-28T01:25:35+03:30", "utc": "1983-03-27T21:55:35Z", "ms": 417650134967.7902 }, "end": { "local": "1983-03-28T22:56:40+03:30", "utc": "1983-03-28T19:26:40Z", "ms": 417727599521.2212 } }, "kaala": "sayahna", "days": [ { "local_date": "1983-03-27", "window": { "start": { "local": "1983-03-27T15:20:02+03:30", "utc": "1983-03-27T11:50:02Z", "ms": 417613801521.4415 }, "end": { "local": "1983-03-27T17:48:24+03:30", "utc": "1983-03-27T14:18:24Z", "ms": 417622703559.7709 } }, "covered_min": 0, "window_min": 148, "qualifies": false }, { "local_date": "1983-03-28", "window": { "start": { "local": "1983-03-28T15:20:25+03:30", "utc": "1983-03-28T11:50:25Z", "ms": 417700224817.7771 }, "end": { "local": "1983-03-28T17:49:15+03:30", "utc": "1983-03-28T14:19:15Z", "ms": 417709154558.9932 } }, "covered_min": 149, "window_min": 149, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1983-03-28", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:26 on Mon 28 Mar to 22:57 on Mon 28 Mar.", "fact": "1983-03-27T21:55:35Z → 1983-03-28T19:26:40Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:20–17:48 on the 27th, 15:20–17:49 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 148 minutes on the 27th and 149 of 149 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 18445 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Monday 28 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Mashhad, 1983: Tuesday 29 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": "1983-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-29", "confidence": "determinate" } ], "quote": "In Mashhad, Holī 1983 falls on Tuesday 29 March. It is kept the day after Holikā Dahana, which falls on Monday 28 March. Pūrṇimā runs from 01:26 on Mon 28 Mar to 22:57 on Mon 28 Mar and covers all of sāyāhna on the 28th.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23219, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1983-03-28T22:56:40+03:30", "utc": "1983-03-28T19:26:40Z", "ms": 417727599521.2212 }, "end": { "local": "1983-03-29T20:52:42+03:30", "utc": "1983-03-29T17:22:42Z", "ms": 417806562258.42114 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-03-28T22:56:40+03:30", "utc": "1983-03-28T19:26:40Z", "ms": 417727599521.2212 }, "end": { "local": "1983-03-29T20:52:42+03:30", "utc": "1983-03-29T17:22:42Z", "ms": 417806562258.42114 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-03-29", "window": { "start": { "local": "1983-03-29T05:23:38+03:30", "utc": "1983-03-29T01:53:38Z", "ms": 417750818440.6677 }, "end": { "local": "1983-03-29T05:23:38+03:30", "utc": "1983-03-29T01:53:38Z", "ms": 417750818440.6677 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-03-30", "window": { "start": { "local": "1983-03-30T05:22:11+03:30", "utc": "1983-03-30T01:52:11Z", "ms": 417837131163.20056 }, "end": { "local": "1983-03-30T05:22:11+03:30", "utc": "1983-03-30T01:52:11Z", "ms": 417837131163.20056 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 22:57 on Mon 28 Mar to 20:53 on Tue 29 Mar.", "fact": "1983-03-28T19:26:40Z → 1983-03-29T17:22:42Z" }, { "step": "kaala", "text": "Sunrise is at 05:24 on the 29th and 05:22 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is on the 29th and is not on the 30th.", "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 23219 s" }, { "step": "ruling", "text": "Vasantotsava, Mashhad, 1983: Tuesday 29 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": "1983-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-29", "confidence": "determinate" } ], "quote": "In Mashhad, Vasantotsava 1983 falls on Tuesday 29 March. Pratipadā runs from 22:57 on Mon 28 Mar to 20:53 on Tue 29 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sankashta-chaturthi?on=1983-03-31", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7886, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-03-31T18:34:22+03:30", "utc": "1983-03-31T15:04:22Z", "ms": 417971061894.6674 }, "end": { "local": "1983-04-01T18:32:38+03:30", "utc": "1983-04-01T15:02:38Z", "ms": 418057358148.36884 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-03-31T18:34:22+03:30", "utc": "1983-03-31T15:04:22Z", "ms": 417971061894.6674 }, "end": { "local": "1983-04-01T18:32:38+03:30", "utc": "1983-04-01T15:02:38Z", "ms": 418057358148.36884 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-03-31", "window": { "start": { "local": "1983-03-31T20:45:48+03:30", "utc": "1983-03-31T17:15:48Z", "ms": 417978947614.5287 }, "end": { "local": "1983-03-31T20:45:48+03:30", "utc": "1983-03-31T17:15:48Z", "ms": 417978947614.5287 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-04-01", "window": { "start": { "local": "1983-04-01T21:48:59+03:30", "utc": "1983-04-01T18:18:59Z", "ms": 418069139308.1516 }, "end": { "local": "1983-04-01T21:48:59+03:30", "utc": "1983-04-01T18:18:59Z", "ms": 418069139308.1516 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:34 on Thu 31 Mar to 18:33 on Fri 1 Apr.", "fact": "1983-03-31T15:04:22Z → 1983-04-01T15:02:38Z" }, { "step": "kaala", "text": "Moonrise is at 20:46 on the 31st and 21:49 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 31st and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7886 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Thursday 31 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": "1983-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-03-31", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Thursday 31 March. Caturthī runs from 18:34 on Thu 31 Mar to 18:33 on Fri 1 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-03-31", "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/1983/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35152, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1983-04-04T22:55:42+03:30", "utc": "1983-04-04T19:25:42Z", "ms": 418332342194.6948 }, "end": { "local": "1983-04-06T01:24:37+03:30", "utc": "1983-04-05T21:54:37Z", "ms": 418427677212.8804 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-04T22:55:42+03:30", "utc": "1983-04-04T19:25:42Z", "ms": 418332342194.6948 }, "end": { "local": "1983-04-06T01:24:37+03:30", "utc": "1983-04-05T21:54:37Z", "ms": 418427677212.8804 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-05", "window": { "start": { "local": "1983-04-05T11:10:47+03:30", "utc": "1983-04-05T07:40:47Z", "ms": 418376446707.5432 }, "end": { "local": "1983-04-05T11:58:47+03:30", "utc": "1983-04-05T08:28:47Z", "ms": 418379326707.5432 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-04-06", "window": { "start": { "local": "1983-04-06T11:10:29+03:30", "utc": "1983-04-06T07:40:29Z", "ms": 418462829409.1616 }, "end": { "local": "1983-04-06T11:58:29+03:30", "utc": "1983-04-06T08:28:29Z", "ms": 418465709409.1616 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 22:56 on Mon 4 Apr to 01:25 on Wed 6 Apr.", "fact": "1983-04-04T19:25:42Z → 1983-04-05T21:54:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:11–11:59 on the 5th, 11:10–11:58 on the 6th.", "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 5th and 0 of 48 on the 6th.", "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 35152 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Mashhad, 1983: Tuesday 5 April.", "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": "1983-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-05", "confidence": "determinate" } ], "quote": "In Mashhad, Śītalāṣṭamī 1983 falls on Tuesday 5 April. Aṣṭamī runs from 22:56 on Mon 4 Apr to 01:25 on Wed 6 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-04-09", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4714, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-04-08T06:27:50+03:30", "utc": "1983-04-08T02:57:50Z", "ms": 418618670382.0187 }, "end": { "local": "1983-04-09T08:33:35+03:30", "utc": "1983-04-09T05:03:35Z", "ms": 418712615421.3427 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-08T06:27:50+03:30", "utc": "1983-04-08T02:57:50Z", "ms": 418618670382.0187 }, "end": { "local": "1983-04-09T08:33:35+03:30", "utc": "1983-04-09T05:03:35Z", "ms": 418712615421.3427 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-04-08", "window": { "start": { "local": "1983-04-08T05:09:17+03:30", "utc": "1983-04-08T01:39:17Z", "ms": 418613956801.73175 }, "end": { "local": "1983-04-08T05:09:17+03:30", "utc": "1983-04-08T01:39:17Z", "ms": 418613956801.73175 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-04-09", "window": { "start": { "local": "1983-04-09T05:07:53+03:30", "utc": "1983-04-09T01:37:53Z", "ms": 418700272542.86957 }, "end": { "local": "1983-04-09T05:07:53+03:30", "utc": "1983-04-09T01:37:53Z", "ms": 418700272542.86957 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:28 on Fri 8 Apr to 08:34 on Sat 9 Apr.", "fact": "1983-04-08T02:57:50Z → 1983-04-09T05:03:35Z" }, { "step": "kaala", "text": "Sunrise is at 05:09 on the 8th and 05:08 on the 9th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 8th and is on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4714 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Mashhad, 1983: Saturday 9 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": "1983-04-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-09", "confidence": "determinate" } ], "quote": "In Mashhad, Pāpamocanī Ekādaśī 1983 falls on Saturday 9 April. Ekādaśī runs from 06:28 on Fri 8 Apr to 08:34 on Sat 9 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-04-09", "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/1983/pradosha-vrata?on=1983-04-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24695, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-04-10T10:08:55+03:30", "utc": "1983-04-10T06:38:55Z", "ms": 418804735383.7817 }, "end": { "local": "1983-04-11T11:09:33+03:30", "utc": "1983-04-11T07:39:33Z", "ms": 418894772620.3251 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-10T10:08:55+03:30", "utc": "1983-04-10T06:38:55Z", "ms": 418804735383.7817 }, "end": { "local": "1983-04-11T11:09:33+03:30", "utc": "1983-04-11T07:39:33Z", "ms": 418894772620.3251 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-04-10", "window": { "start": { "local": "1983-04-10T18:00:16+03:30", "utc": "1983-04-10T14:30:16Z", "ms": 418833016126.05994 }, "end": { "local": "1983-04-10T19:28:55+03:30", "utc": "1983-04-10T15:58:55Z", "ms": 418838334700.9022 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "1983-04-11", "window": { "start": { "local": "1983-04-11T18:01:07+03:30", "utc": "1983-04-11T14:31:07Z", "ms": 418919467217.566 }, "end": { "local": "1983-04-11T19:29:28+03:30", "utc": "1983-04-11T15:59:28Z", "ms": 418924767941.33093 } }, "covered_min": 0, "window_min": 88, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:09 on Sun 10 Apr to 11:10 on Mon 11 Apr.", "fact": "1983-04-10T06:38:55Z → 1983-04-11T07:39:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:00–19:29 on the 10th, 18:01–19:29 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 89 of 89 minutes on the 10th and 0 of 88 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 24695 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Sunday 10 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": "1983-04-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-10", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Sunday 10 April. Trayodaśī runs from 10:09 on Sun 10 Apr to 11:10 on Mon 11 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-04-10", "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/1983/shivaratri?on=1983-04-11", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40372, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-04-11T11:09:33+03:30", "utc": "1983-04-11T07:39:33Z", "ms": 418894772620.3251 }, "end": { "local": "1983-04-12T11:35:09+03:30", "utc": "1983-04-12T08:05:09Z", "ms": 418982708695.67126 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-11T11:09:33+03:30", "utc": "1983-04-11T07:39:33Z", "ms": 418894772620.3251 }, "end": { "local": "1983-04-12T11:35:09+03:30", "utc": "1983-04-12T08:05:09Z", "ms": 418982708695.67126 } }, "kaala": "nishita", "days": [ { "local_date": "1983-04-10", "window": { "start": { "local": "1983-04-10T23:08:41+03:30", "utc": "1983-04-10T19:38:41Z", "ms": 418851520781.71857 }, "end": { "local": "1983-04-10T23:56:41+03:30", "utc": "1983-04-10T20:26:41Z", "ms": 418854400781.71857 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-04-11", "window": { "start": { "local": "1983-04-11T23:08:25+03:30", "utc": "1983-04-11T19:38:25Z", "ms": 418937904931.6847 }, "end": { "local": "1983-04-11T23:56:25+03:30", "utc": "1983-04-11T20:26:25Z", "ms": 418940784931.6847 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:10 on Mon 11 Apr to 11:35 on Tue 12 Apr.", "fact": "1983-04-11T07:39:33Z → 1983-04-12T08:05:09Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:09–23:57 on the 10th, 23:08–23:56 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 40372 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Monday 11 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": "1983-04-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-11", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Monday 11 April. Caturdaśī runs from 11:10 on Mon 11 Apr to 11:35 on Tue 12 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-04-11", "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/1983/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 900, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1983-04-13T11:28:19+03:30", "utc": "1983-04-13T07:58:19Z", "ms": 419068698872.5424 }, "end": { "local": "1983-04-14T10:53:20+03:30", "utc": "1983-04-14T07:23:20Z", "ms": 419152999503.01605 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-13T11:28:19+03:30", "utc": "1983-04-13T07:58:19Z", "ms": 419068698872.5424 }, "end": { "local": "1983-04-14T10:53:20+03:30", "utc": "1983-04-14T07:23:20Z", "ms": 419152999503.01605 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-13", "window": { "start": { "local": "1983-04-13T11:08:35+03:30", "utc": "1983-04-13T07:38:35Z", "ms": 419067514974.36005 }, "end": { "local": "1983-04-13T11:56:35+03:30", "utc": "1983-04-13T08:26:35Z", "ms": 419070394974.36005 } }, "covered_min": 28, "window_min": 48, "qualifies": true }, { "local_date": "1983-04-14", "window": { "start": { "local": "1983-04-14T11:08:20+03:30", "utc": "1983-04-14T07:38:20Z", "ms": 419153899755.4558 }, "end": { "local": "1983-04-14T11:56:20+03:30", "utc": "1983-04-14T08:26:20Z", "ms": 419156779755.4558 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 11:28 on Wed 13 Apr to 10:53 on Thu 14 Apr.", "fact": "1983-04-13T07:58:19Z → 1983-04-14T07:23:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 13th, 11:08–11:56 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 28 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 900 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Mashhad, 1983: Wednesday 13 April.", "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": "1983-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-14", "confidence": "determinate" } ], "quote": "In Mashhad, Navarātrārambha (Caitra) (Chaitra Navratri) 1983 falls on Wednesday 13 April. Pratipadā runs from 11:28 on Wed 13 Apr to 10:53 on Thu 14 Apr and covers 28 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6328, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1983-04-14T06:46:27+03:30", "utc": "1983-04-14T03:16:27Z", "ms": 419138187094.316 }, "end": { "local": "1983-05-15T03:39:26+03:30", "utc": "1983-05-15T00:09:26Z", "ms": 421805365544.5818 } }, "span": { "of": "transit", "start": { "local": "1983-04-14T06:46:27+03:30", "utc": "1983-04-14T03:16:27Z", "ms": 419138187094.316 }, "end": { "local": "1983-04-14T06:46:27+03:30", "utc": "1983-04-14T03:16:27Z", "ms": 419138187094.316 } }, "kaala": "day", "days": [ { "local_date": "1983-04-13", "window": { "start": { "local": "1983-04-13T05:02:20+03:30", "utc": "1983-04-13T01:32:20Z", "ms": 419045540397.72327 }, "end": { "local": "1983-04-14T05:00:59+03:30", "utc": "1983-04-14T01:30:59Z", "ms": 419131858719.7264 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "1983-04-14", "window": { "start": { "local": "1983-04-14T05:00:59+03:30", "utc": "1983-04-14T01:30:59Z", "ms": 419131858719.7264 }, "end": { "local": "1983-04-15T04:59:38+03:30", "utc": "1983-04-15T01:29:38Z", "ms": 419218177638.1843 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 06:46 on Thu 14 Apr.", "fact": "1983-04-14T03:16:27Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:02 on the 13th, and from 05:01 on the 14th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 14th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 6328 s" }, { "step": "ruling", "text": "Vaiśākhī, Mashhad, 1983: Thursday 14 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1983-04-14", "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": "1983-04-14", "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 1983 falls on Thursday 14 April. The Sun enters Meṣa at 06:46 on Thu 14 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4381, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1983-04-15T09:55:04+03:30", "utc": "1983-04-15T06:25:04Z", "ms": 419235903713.274 }, "end": { "local": "1983-04-16T08:38:12+03:30", "utc": "1983-04-16T05:08:12Z", "ms": 419317692494.6725 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-15T09:55:04+03:30", "utc": "1983-04-15T06:25:04Z", "ms": 419235903713.274 }, "end": { "local": "1983-04-16T08:38:12+03:30", "utc": "1983-04-16T05:08:12Z", "ms": 419317692494.6725 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-15", "window": { "start": { "local": "1983-04-15T11:08:05+03:30", "utc": "1983-04-15T07:38:05Z", "ms": 419240284857.779 }, "end": { "local": "1983-04-15T11:56:05+03:30", "utc": "1983-04-15T08:26:05Z", "ms": 419243164857.779 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-04-16", "window": { "start": { "local": "1983-04-16T11:07:50+03:30", "utc": "1983-04-16T07:37:50Z", "ms": 419326670292.808 }, "end": { "local": "1983-04-16T11:55:50+03:30", "utc": "1983-04-16T08:25:50Z", "ms": 419329550292.808 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 09:55 on Fri 15 Apr to 08:38 on Sat 16 Apr.", "fact": "1983-04-15T06:25:04Z → 1983-04-16T05:08:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 15th, 11:08–11:56 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 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: unstated → only-day · margin 4381 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Mashhad, 1983: Friday 15 April.", "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": "1983-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-15", "confidence": "determinate" } ], "quote": "In Mashhad, Gaurī Tṛtīyā (Gangaur) 1983 falls on Friday 15 April. Tṛtīyā runs from 09:55 on Fri 15 Apr to 08:38 on Sat 16 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4381, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1983-04-15T09:55:04+03:30", "utc": "1983-04-15T06:25:04Z", "ms": 419235903713.274 }, "end": { "local": "1983-04-16T08:38:12+03:30", "utc": "1983-04-16T05:08:12Z", "ms": 419317692494.6725 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-15T09:55:04+03:30", "utc": "1983-04-15T06:25:04Z", "ms": 419235903713.274 }, "end": { "local": "1983-04-16T08:38:12+03:30", "utc": "1983-04-16T05:08:12Z", "ms": 419317692494.6725 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-15", "window": { "start": { "local": "1983-04-15T11:08:05+03:30", "utc": "1983-04-15T07:38:05Z", "ms": 419240284857.779 }, "end": { "local": "1983-04-15T11:56:05+03:30", "utc": "1983-04-15T08:26:05Z", "ms": 419243164857.779 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-04-16", "window": { "start": { "local": "1983-04-16T11:07:50+03:30", "utc": "1983-04-16T07:37:50Z", "ms": 419326670292.808 }, "end": { "local": "1983-04-16T11:55:50+03:30", "utc": "1983-04-16T08:25:50Z", "ms": 419329550292.808 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 09:55 on Fri 15 Apr to 08:38 on Sat 16 Apr.", "fact": "1983-04-15T06:25:04Z → 1983-04-16T05:08:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 15th, 11:08–11:56 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 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 4381 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Mashhad, 1983: Friday 15 April.", "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": "1983-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-15", "confidence": "determinate" } ], "quote": "In Mashhad, Saubhāgya Śayana Vrata 1983 falls on Friday 15 April. Tṛtīyā runs from 09:55 on Fri 15 Apr to 08:38 on Sat 16 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vinayaka-chaturthi?on=1983-04-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8978, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-04-16T08:38:12+03:30", "utc": "1983-04-16T05:08:12Z", "ms": 419317692494.6725 }, "end": { "local": "1983-04-17T07:06:44+03:30", "utc": "1983-04-17T03:36:44Z", "ms": 419398603510.6794 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-16T08:38:12+03:30", "utc": "1983-04-16T05:08:12Z", "ms": 419317692494.6725 }, "end": { "local": "1983-04-17T07:06:44+03:30", "utc": "1983-04-17T03:36:44Z", "ms": 419398603510.6794 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-16", "window": { "start": { "local": "1983-04-16T11:07:50+03:30", "utc": "1983-04-16T07:37:50Z", "ms": 419326670292.808 }, "end": { "local": "1983-04-16T11:55:50+03:30", "utc": "1983-04-16T08:25:50Z", "ms": 419329550292.808 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-04-17", "window": { "start": { "local": "1983-04-17T11:07:36+03:30", "utc": "1983-04-17T07:37:36Z", "ms": 419413056071.80707 }, "end": { "local": "1983-04-17T11:55:36+03:30", "utc": "1983-04-17T08:25:36Z", "ms": 419415936071.80707 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:38 on Sat 16 Apr to 07:07 on Sun 17 Apr.", "fact": "1983-04-16T05:08:12Z → 1983-04-17T03:36:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 16th, 11:08–11:56 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8978 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Saturday 16 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": "1983-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-16", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Saturday 16 April. Caturthī runs from 08:38 on Sat 16 Apr to 07:07 on Sun 17 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-04-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1983/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14453, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1983-04-17T07:06:44+03:30", "utc": "1983-04-17T03:36:44Z", "ms": 419398603510.6794 }, "end": { "local": "1983-04-18T05:23:38+03:30", "utc": "1983-04-18T01:53:38Z", "ms": 419478817806.08734 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-17T07:06:44+03:30", "utc": "1983-04-17T03:36:44Z", "ms": 419398603510.6794 }, "end": { "local": "1983-04-18T05:23:38+03:30", "utc": "1983-04-18T01:53:38Z", "ms": 419478817806.08734 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-17", "window": { "start": { "local": "1983-04-17T11:07:36+03:30", "utc": "1983-04-17T07:37:36Z", "ms": 419413056071.80707 }, "end": { "local": "1983-04-17T11:55:36+03:30", "utc": "1983-04-17T08:25:36Z", "ms": 419415936071.80707 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-04-18", "window": { "start": { "local": "1983-04-18T11:07:22+03:30", "utc": "1983-04-18T07:37:22Z", "ms": 419499442206.1019 }, "end": { "local": "1983-04-18T11:55:22+03:30", "utc": "1983-04-18T08:25:22Z", "ms": 419502322206.1019 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 07:07 on Sun 17 Apr to 05:24 on Mon 18 Apr.", "fact": "1983-04-17T03:36:44Z → 1983-04-18T01:53:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 17th, 11:07–11:55 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 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 14453 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Mashhad, 1983: Sunday 17 April.", "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": "1983-04-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-17", "confidence": "determinate" } ], "quote": "In Mashhad, Lakṣmī Pañcamī 1983 falls on Sunday 17 April. Pañcamī runs from 07:07 on Sun 17 Apr to 05:24 on Mon 18 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34583, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1983-04-20T01:30:33+03:30", "utc": "1983-04-19T22:00:33Z", "ms": 419637632906.10675 }, "end": { "local": "1983-04-20T23:23:31+03:30", "utc": "1983-04-20T19:53:31Z", "ms": 419716411001.49695 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-20T01:30:33+03:30", "utc": "1983-04-19T22:00:33Z", "ms": 419637632906.10675 }, "end": { "local": "1983-04-20T23:23:31+03:30", "utc": "1983-04-20T19:53:31Z", "ms": 419716411001.49695 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-20", "window": { "start": { "local": "1983-04-20T11:06:56+03:30", "utc": "1983-04-20T07:36:56Z", "ms": 419672215587.75684 }, "end": { "local": "1983-04-20T11:54:56+03:30", "utc": "1983-04-20T08:24:56Z", "ms": 419675095587.75684 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-04-21", "window": { "start": { "local": "1983-04-21T11:06:43+03:30", "utc": "1983-04-21T07:36:43Z", "ms": 419758602860.2355 }, "end": { "local": "1983-04-21T11:54:43+03:30", "utc": "1983-04-21T08:24:43Z", "ms": 419761482860.2355 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 01:31 on Wed 20 Apr to 23:24 on Wed 20 Apr.", "fact": "1983-04-19T22:00:33Z → 1983-04-20T19:53:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 20th, 11:07–11:55 on the 21st.", "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 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: paraviddha → only-day · margin 34583 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Mashhad, 1983: Wednesday 20 April.", "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": "1983-04-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-20", "confidence": "determinate" } ], "quote": "In Mashhad, Bhavānī Utpatti 1983 falls on Wednesday 20 April. Aṣṭamī runs from 01:31 on Wed 20 Apr to 23:24 on Wed 20 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33421, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1983-04-20T23:23:31+03:30", "utc": "1983-04-20T19:53:31Z", "ms": 419716411001.49695 }, "end": { "local": "1983-04-21T21:11:44+03:30", "utc": "1983-04-21T17:41:44Z", "ms": 419794904226.86224 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-20T23:23:31+03:30", "utc": "1983-04-20T19:53:31Z", "ms": 419716411001.49695 }, "end": { "local": "1983-04-21T21:11:44+03:30", "utc": "1983-04-21T17:41:44Z", "ms": 419794904226.86224 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-20", "window": { "start": { "local": "1983-04-20T11:06:56+03:30", "utc": "1983-04-20T07:36:56Z", "ms": 419672215587.75684 }, "end": { "local": "1983-04-20T11:54:56+03:30", "utc": "1983-04-20T08:24:56Z", "ms": 419675095587.75684 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-04-21", "window": { "start": { "local": "1983-04-21T11:06:43+03:30", "utc": "1983-04-21T07:36:43Z", "ms": 419758602860.2355 }, "end": { "local": "1983-04-21T11:54:43+03:30", "utc": "1983-04-21T08:24:43Z", "ms": 419761482860.2355 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 23:24 on Wed 20 Apr to 21:12 on Thu 21 Apr.", "fact": "1983-04-20T19:53:31Z → 1983-04-21T17:41:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 20th, 11:07–11:55 on the 21st.", "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 20th and 48 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: unstated → only-day · margin 33421 s" }, { "step": "ruling", "text": "Rāma Navamī, Mashhad, 1983: Thursday 21 April.", "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": "1983-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-21", "confidence": "determinate" } ], "quote": "In Mashhad, Rāma Navamī 1983 falls on Thursday 21 April. Navamī runs from 23:24 on Wed 20 Apr to 21:12 on Thu 21 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-04-23", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35486, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-04-22T18:57:47+03:30", "utc": "1983-04-22T15:27:47Z", "ms": 419873267296.908 }, "end": { "local": "1983-04-23T16:45:20+03:30", "utc": "1983-04-23T13:15:20Z", "ms": 419951720020.1371 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-22T18:57:47+03:30", "utc": "1983-04-22T15:27:47Z", "ms": 419873267296.908 }, "end": { "local": "1983-04-23T16:45:20+03:30", "utc": "1983-04-23T13:15:20Z", "ms": 419951720020.1371 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-04-23", "window": { "start": { "local": "1983-04-23T04:49:14+03:30", "utc": "1983-04-23T01:19:14Z", "ms": 419908753720.6563 }, "end": { "local": "1983-04-23T04:49:14+03:30", "utc": "1983-04-23T01:19:14Z", "ms": 419908753720.6563 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-04-24", "window": { "start": { "local": "1983-04-24T04:47:59+03:30", "utc": "1983-04-24T01:17:59Z", "ms": 419995079256.59235 }, "end": { "local": "1983-04-24T04:47:59+03:30", "utc": "1983-04-24T01:17:59Z", "ms": 419995079256.59235 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:58 on Fri 22 Apr to 16:45 on Sat 23 Apr.", "fact": "1983-04-22T15:27:47Z → 1983-04-23T13:15:20Z" }, { "step": "kaala", "text": "Sunrise is at 04:49 on the 23rd and 04:48 on the 24th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 23rd and is not on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35486 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Mashhad, 1983: Saturday 23 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": "1983-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-23", "confidence": "determinate" } ], "quote": "In Mashhad, Kāmadā Ekādaśī 1983 falls on Saturday 23 April. Ekādaśī runs from 18:58 on Fri 22 Apr to 16:45 on Sat 23 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-04-23", "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/1983/pradosha-vrata?on=1983-04-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12783, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-04-24T14:39:12+03:30", "utc": "1983-04-24T11:09:12Z", "ms": 420030552282.6971 }, "end": { "local": "1983-04-25T12:45:17+03:30", "utc": "1983-04-25T09:15:17Z", "ms": 420110116639.1535 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-24T14:39:12+03:30", "utc": "1983-04-24T11:09:12Z", "ms": 420030552282.6971 }, "end": { "local": "1983-04-25T12:45:17+03:30", "utc": "1983-04-25T09:15:17Z", "ms": 420110116639.1535 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-04-24", "window": { "start": { "local": "1983-04-24T18:12:15+03:30", "utc": "1983-04-24T14:42:15Z", "ms": 420043335083.38025 }, "end": { "local": "1983-04-24T19:36:51+03:30", "utc": "1983-04-24T16:06:51Z", "ms": 420048411162.6306 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "1983-04-25", "window": { "start": { "local": "1983-04-25T18:13:07+03:30", "utc": "1983-04-25T14:43:07Z", "ms": 420129786628.89624 }, "end": { "local": "1983-04-25T19:37:26+03:30", "utc": "1983-04-25T16:07:26Z", "ms": 420134846147.0963 } }, "covered_min": 0, "window_min": 84, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:39 on Sun 24 Apr to 12:45 on Mon 25 Apr.", "fact": "1983-04-24T11:09:12Z → 1983-04-25T09:15:17Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:12–19:37 on the 24th, 18:13–19:37 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 85 of 85 minutes on the 24th and 0 of 84 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 12783 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Sunday 24 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": "1983-04-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-24", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Sunday 24 April. Trayodaśī runs from 14:39 on Sun 24 Apr to 12:45 on Mon 25 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-04-24", "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/1983/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3080, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-04-24T14:39:12+03:30", "utc": "1983-04-24T11:09:12Z", "ms": 420030552282.6971 }, "end": { "local": "1983-04-25T12:45:17+03:30", "utc": "1983-04-25T09:15:17Z", "ms": 420110116639.1535 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-24T14:39:12+03:30", "utc": "1983-04-24T11:09:12Z", "ms": 420030552282.6971 }, "end": { "local": "1983-04-25T12:45:17+03:30", "utc": "1983-04-25T09:15:17Z", "ms": 420110116639.1535 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-24", "window": { "start": { "local": "1983-04-24T11:06:07+03:30", "utc": "1983-04-24T07:36:07Z", "ms": 420017767169.9863 }, "end": { "local": "1983-04-24T11:54:07+03:30", "utc": "1983-04-24T08:24:07Z", "ms": 420020647169.9863 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-04-25", "window": { "start": { "local": "1983-04-25T11:05:56+03:30", "utc": "1983-04-25T07:35:56Z", "ms": 420104156153.3272 }, "end": { "local": "1983-04-25T11:53:56+03:30", "utc": "1983-04-25T08:23:56Z", "ms": 420107036153.3272 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:39 on Sun 24 Apr to 12:45 on Mon 25 Apr.", "fact": "1983-04-24T11:09:12Z → 1983-04-25T09:15:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 24th, 11:06–11:54 on the 25th.", "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 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3080 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Mashhad, 1983: Monday 25 April.", "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": "1983-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-25", "confidence": "determinate" } ], "quote": "In Mashhad, Anaṅga Trayodaśī 1983 falls on Monday 25 April. Trayodaśī runs from 14:39 on Sun 24 Apr to 12:45 on Mon 25 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-26", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 264, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-04-25T12:45:17+03:30", "utc": "1983-04-25T09:15:17Z", "ms": 420110116639.1535 }, "end": { "local": "1983-04-26T11:10:09+03:30", "utc": "1983-04-26T07:40:09Z", "ms": 420190809216.64453 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-25T12:45:17+03:30", "utc": "1983-04-25T09:15:17Z", "ms": 420110116639.1535 }, "end": { "local": "1983-04-26T11:10:09+03:30", "utc": "1983-04-26T07:40:09Z", "ms": 420190809216.64453 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-25", "window": { "start": { "local": "1983-04-25T11:05:56+03:30", "utc": "1983-04-25T07:35:56Z", "ms": 420104156153.3272 }, "end": { "local": "1983-04-25T11:53:56+03:30", "utc": "1983-04-25T08:23:56Z", "ms": 420107036153.3272 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-04-26", "window": { "start": { "local": "1983-04-26T11:05:46+03:30", "utc": "1983-04-26T07:35:46Z", "ms": 420190545601.819 }, "end": { "local": "1983-04-26T11:53:46+03:30", "utc": "1983-04-26T08:23:46Z", "ms": 420193425601.819 } }, "covered_min": 4, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:45 on Mon 25 Apr to 11:10 on Tue 26 Apr.", "fact": "1983-04-25T09:15:17Z → 1983-04-26T07:40:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 25th, 11:06–11:54 on the 26th.", "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 25th and 4 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 264 s < 300 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Mashhad, 1983: Tuesday 26 April.", "fact": "confidence: boundary (margin)" } ], "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": "1983-04-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-26", "confidence": "determinate" } ], "quote": "In Mashhad, Viṣṇudamanaka Caturdaśī 1983 falls on Tuesday 26 April. Caturdaśī runs from 12:45 on Mon 25 Apr to 11:10 on Tue 26 Apr and covers 4 of 48 minutes of madhyāhna that midday. It is 4 min 24 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-26", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 264, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-04-26T11:10:09+03:30", "utc": "1983-04-26T07:40:09Z", "ms": 420190809216.64453 }, "end": { "local": "1983-04-27T10:00:40+03:30", "utc": "1983-04-27T06:30:40Z", "ms": 420273039533.2908 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1983-04-26T11:10:09+03:30", "utc": "1983-04-26T07:40:09Z", "ms": 420190809216.64453 }, "end": { "local": "1983-04-27T10:00:40+03:30", "utc": "1983-04-27T06:30:40Z", "ms": 420273039533.2908 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-04-26", "window": { "start": { "local": "1983-04-26T11:05:46+03:30", "utc": "1983-04-26T07:35:46Z", "ms": 420190545601.819 }, "end": { "local": "1983-04-26T11:53:46+03:30", "utc": "1983-04-26T08:23:46Z", "ms": 420193425601.819 } }, "covered_min": 44, "window_min": 48, "qualifies": true }, { "local_date": "1983-04-27", "window": { "start": { "local": "1983-04-27T11:05:36+03:30", "utc": "1983-04-27T07:35:36Z", "ms": 420276935530.10815 }, "end": { "local": "1983-04-27T11:53:36+03:30", "utc": "1983-04-27T08:23:36Z", "ms": 420279815530.10815 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 11:10 on Tue 26 Apr to 10:01 on Wed 27 Apr.", "fact": "1983-04-26T07:40:09Z → 1983-04-27T06:30:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:06–11:54 on the 26th, 11:06–11:54 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 44 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 264 s < 300 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Mashhad, 1983: Tuesday 26 April.", "fact": "confidence: boundary (margin)" } ], "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": "1983-04-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-26", "confidence": "determinate" } ], "quote": "In Mashhad, Caitrī Pūrṇimā 1983 falls on Tuesday 26 April. Pūrṇimā runs from 11:10 on Tue 26 Apr to 10:01 on Wed 27 Apr and covers 44 of 48 minutes of madhyāhna that midday. It is 4 min 24 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sankashta-chaturthi?on=1983-04-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40310, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-04-30T10:01:52+03:30", "utc": "1983-04-30T06:31:52Z", "ms": 420532311862.07294 }, "end": { "local": "1983-05-01T11:20:03+03:30", "utc": "1983-05-01T07:50:03Z", "ms": 420623402945.3984 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-04-30T10:01:52+03:30", "utc": "1983-04-30T06:31:52Z", "ms": 420532311862.07294 }, "end": { "local": "1983-05-01T11:20:03+03:30", "utc": "1983-05-01T07:50:03Z", "ms": 420623402945.3984 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-04-30", "window": { "start": { "local": "1983-04-30T21:35:38+03:30", "utc": "1983-04-30T18:05:38Z", "ms": 420573937652.3108 }, "end": { "local": "1983-04-30T21:35:38+03:30", "utc": "1983-04-30T18:05:38Z", "ms": 420573937652.3108 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-05-01", "window": { "start": { "local": "1983-05-01T22:31:53+03:30", "utc": "1983-05-01T19:01:53Z", "ms": 420663713226.1137 }, "end": { "local": "1983-05-01T22:31:53+03:30", "utc": "1983-05-01T19:01:53Z", "ms": 420663713226.1137 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:02 on Sat 30 Apr to 11:20 on Sun 1 May.", "fact": "1983-04-30T06:31:52Z → 1983-05-01T07:50:03Z" }, { "step": "kaala", "text": "Moonrise is at 21:36 on the 30th and 22:32 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 40310 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Saturday 30 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-04-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-04-30", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Saturday 30 April. Caturthī runs from 10:02 on Sat 30 Apr to 11:20 on Sun 1 May and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-04-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1983/ekadashi?on=1983-05-08", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11775, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-05-08T00:12:58+03:30", "utc": "1983-05-07T20:42:58Z", "ms": 421188178107.7748 }, "end": { "local": "1983-05-09T01:15:10+03:30", "utc": "1983-05-08T21:45:10Z", "ms": 421278310455.68396 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-08T00:12:58+03:30", "utc": "1983-05-07T20:42:58Z", "ms": 421188178107.7748 }, "end": { "local": "1983-05-09T01:15:10+03:30", "utc": "1983-05-08T21:45:10Z", "ms": 421278310455.68396 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-05-08", "window": { "start": { "local": "1983-05-08T04:32:24+03:30", "utc": "1983-05-08T01:02:24Z", "ms": 421203743605.53516 }, "end": { "local": "1983-05-08T04:32:24+03:30", "utc": "1983-05-08T01:02:24Z", "ms": 421203743605.53516 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-05-09", "window": { "start": { "local": "1983-05-09T04:31:26+03:30", "utc": "1983-05-09T01:01:26Z", "ms": 421290085574.56036 }, "end": { "local": "1983-05-09T04:31:26+03:30", "utc": "1983-05-09T01:01:26Z", "ms": 421290085574.56036 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:13 on Sun 8 May to 01:15 on Mon 9 May.", "fact": "1983-05-07T20:42:58Z → 1983-05-08T21:45:10Z" }, { "step": "kaala", "text": "Sunrise is at 04:32 on the 8th and 04:31 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 11775 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Mashhad, 1983: Sunday 8 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": "1983-05-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-08", "confidence": "determinate" } ], "quote": "In Mashhad, Varūthinī Ekādaśī 1983 falls on Sunday 8 May. Ekādaśī runs from 00:13 on Sun 8 May to 01:15 on Mon 9 May and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-05-08", "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/1983/pradosha-vrata?on=1983-05-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19879, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-05-10T01:36:37+03:30", "utc": "1983-05-09T22:06:37Z", "ms": 421365996886.31433 }, "end": { "local": "1983-05-11T01:17:45+03:30", "utc": "1983-05-10T21:47:45Z", "ms": 421451265281.4399 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-10T01:36:37+03:30", "utc": "1983-05-09T22:06:37Z", "ms": 421365996886.31433 }, "end": { "local": "1983-05-11T01:17:45+03:30", "utc": "1983-05-10T21:47:45Z", "ms": 421451265281.4399 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-05-09", "window": { "start": { "local": "1983-05-09T18:25:07+03:30", "utc": "1983-05-09T14:55:07Z", "ms": 421340106629.9232 }, "end": { "local": "1983-05-09T19:45:50+03:30", "utc": "1983-05-09T16:15:50Z", "ms": 421344949594.1544 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "1983-05-10", "window": { "start": { "local": "1983-05-10T18:25:57+03:30", "utc": "1983-05-10T14:55:57Z", "ms": 421426557425.81586 }, "end": { "local": "1983-05-10T19:46:26+03:30", "utc": "1983-05-10T16:16:26Z", "ms": 421431386234.3678 } }, "covered_min": 80, "window_min": 80, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:37 on Tue 10 May to 01:18 on Wed 11 May.", "fact": "1983-05-09T22:06:37Z → 1983-05-10T21:47:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:25–19:46 on the 9th, 18:26–19:46 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 81 minutes on the 9th and 80 of 80 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 19879 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Tuesday 10 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": "1983-05-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-10", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Tuesday 10 May. Trayodaśī runs from 01:37 on Tue 10 May to 01:18 on Wed 11 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-05-10", "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/1983/shivaratri?on=1983-05-11", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1822, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-05-11T01:17:45+03:30", "utc": "1983-05-10T21:47:45Z", "ms": 421451265281.4399 }, "end": { "local": "1983-05-12T00:22:05+03:30", "utc": "1983-05-11T20:52:05Z", "ms": 421534325484.73804 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-11T01:17:45+03:30", "utc": "1983-05-10T21:47:45Z", "ms": 421451265281.4399 }, "end": { "local": "1983-05-12T00:22:05+03:30", "utc": "1983-05-11T20:52:05Z", "ms": 421534325484.73804 } }, "kaala": "nishita", "days": [ { "local_date": "1983-05-10", "window": { "start": { "local": "1983-05-10T23:03:45+03:30", "utc": "1983-05-10T19:33:45Z", "ms": 421443225457.88574 }, "end": { "local": "1983-05-10T23:51:45+03:30", "utc": "1983-05-10T20:21:45Z", "ms": 421446105457.88574 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-05-11", "window": { "start": { "local": "1983-05-11T23:03:44+03:30", "utc": "1983-05-11T19:33:44Z", "ms": 421529623755.5137 }, "end": { "local": "1983-05-11T23:51:44+03:30", "utc": "1983-05-11T20:21:44Z", "ms": 421532503755.5137 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:18 on Wed 11 May to 00:22 on Thu 12 May.", "fact": "1983-05-10T21:47:45Z → 1983-05-11T20:52:05Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:04–23:52 on the 10th, 23:04–23:52 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1822 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Wednesday 11 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": "1983-05-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-11", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Wednesday 11 May. Caturdaśī runs from 01:18 on Wed 11 May to 00:22 on Thu 12 May and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-05-11", "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/1983/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1433, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1983-05-14T18:53:11+03:30", "utc": "1983-05-14T15:23:11Z", "ms": 421773791374.9548 }, "end": { "local": "1983-05-15T16:31:28+03:30", "utc": "1983-05-15T13:01:28Z", "ms": 421851687785.252 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-14T18:53:11+03:30", "utc": "1983-05-14T15:23:11Z", "ms": 421773791374.9548 }, "end": { "local": "1983-05-15T16:31:28+03:30", "utc": "1983-05-15T13:01:28Z", "ms": 421851687785.252 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-05-14", "window": { "start": { "local": "1983-05-14T18:29:18+03:30", "utc": "1983-05-14T14:59:18Z", "ms": 421772358394.8483 }, "end": { "local": "1983-05-14T19:48:53+03:30", "utc": "1983-05-14T16:18:53Z", "ms": 421777132721.8934 } }, "covered_min": 56, "window_min": 80, "qualifies": true }, { "local_date": "1983-05-15", "window": { "start": { "local": "1983-05-15T18:30:08+03:30", "utc": "1983-05-15T15:00:08Z", "ms": 421858807930.6259 }, "end": { "local": "1983-05-15T19:49:29+03:30", "utc": "1983-05-15T16:19:29Z", "ms": 421863569206.333 } }, "covered_min": 0, "window_min": 79, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 18:53 on Sat 14 May to 16:31 on Sun 15 May.", "fact": "1983-05-14T15:23:11Z → 1983-05-15T13:01:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:29–19:49 on the 14th, 18:30–19:49 on the 15th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 56 of 80 minutes on the 14th and 0 of 79 on the 15th.", "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 1433 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Mashhad, 1983: Saturday 14 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": "1983-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-14", "confidence": "determinate" } ], "quote": "In Mashhad, Paraśurāma Jayantī 1983 falls on Saturday 14 May. Tṛtīyā runs from 18:53 on Sat 14 May to 16:31 on Sun 15 May and covers 56 of 80 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26641, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1983-05-14T18:53:11+03:30", "utc": "1983-05-14T15:23:11Z", "ms": 421773791374.9548 }, "end": { "local": "1983-05-15T16:31:28+03:30", "utc": "1983-05-15T13:01:28Z", "ms": 421851687785.252 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-14T18:53:11+03:30", "utc": "1983-05-14T15:23:11Z", "ms": 421773791374.9548 }, "end": { "local": "1983-05-15T16:31:28+03:30", "utc": "1983-05-15T13:01:28Z", "ms": 421851687785.252 } }, "kaala": "purvahna", "days": [ { "local_date": "1983-05-14", "window": { "start": { "local": "1983-05-14T04:26:56+03:30", "utc": "1983-05-14T00:56:56Z", "ms": 421721815640.882 }, "end": { "local": "1983-05-14T09:07:43+03:30", "utc": "1983-05-14T05:37:43Z", "ms": 421738663225.5375 } }, "covered_min": 0, "window_min": 281, "qualifies": false }, { "local_date": "1983-05-15", "window": { "start": { "local": "1983-05-15T04:26:06+03:30", "utc": "1983-05-15T00:56:06Z", "ms": 421808165847.686 }, "end": { "local": "1983-05-15T09:07:27+03:30", "utc": "1983-05-15T05:37:27Z", "ms": 421825046541.99927 } }, "covered_min": 281, "window_min": 281, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 18:53 on Sat 14 May to 16:31 on Sun 15 May.", "fact": "1983-05-14T15:23:11Z → 1983-05-15T13:01:28Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 04:27–09:08 on the 14th, 04:26–09:07 on the 15th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 0 of 281 minutes on the 14th and 281 of 281 on the 15th.", "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 26641 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Mashhad, 1983: Sunday 15 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": "1983-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-15", "confidence": "determinate" } ], "quote": "In Mashhad, Akṣaya Tṛtīyā 1983 falls on Sunday 15 May. Tṛtīyā runs from 18:53 on Sat 14 May to 16:31 on Sun 15 May and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vinayaka-chaturthi?on=1983-05-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7905, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-05-15T16:31:28+03:30", "utc": "1983-05-15T13:01:28Z", "ms": 421851687785.252 }, "end": { "local": "1983-05-16T14:03:52+03:30", "utc": "1983-05-16T10:33:52Z", "ms": 421929231954.7927 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-15T16:31:28+03:30", "utc": "1983-05-15T13:01:28Z", "ms": 421851687785.252 }, "end": { "local": "1983-05-16T14:03:52+03:30", "utc": "1983-05-16T10:33:52Z", "ms": 421929231954.7927 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-05-15", "window": { "start": { "local": "1983-05-15T11:04:07+03:30", "utc": "1983-05-15T07:34:07Z", "ms": 421832046889.15594 }, "end": { "local": "1983-05-15T11:52:07+03:30", "utc": "1983-05-15T08:22:07Z", "ms": 421834926889.15594 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-05-16", "window": { "start": { "local": "1983-05-16T11:04:07+03:30", "utc": "1983-05-16T07:34:07Z", "ms": 421918447308.1161 }, "end": { "local": "1983-05-16T11:52:07+03:30", "utc": "1983-05-16T08:22:07Z", "ms": 421921327308.1161 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:31 on Sun 15 May to 14:04 on Mon 16 May.", "fact": "1983-05-15T13:01:28Z → 1983-05-16T10:33:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 15th, 11:04–11:52 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7905 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Monday 16 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": "1983-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-16", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Monday 16 May. Caturthī runs from 16:31 on Sun 15 May to 14:04 on Mon 16 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-05-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1983/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1001, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1983-05-16T14:03:52+03:30", "utc": "1983-05-16T10:33:52Z", "ms": 421929231954.7927 }, "end": { "local": "1983-05-17T11:35:27+03:30", "utc": "1983-05-17T08:05:27Z", "ms": 422006727020.2513 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-16T14:03:52+03:30", "utc": "1983-05-16T10:33:52Z", "ms": 421929231954.7927 }, "end": { "local": "1983-05-17T11:35:27+03:30", "utc": "1983-05-17T08:05:27Z", "ms": 422006727020.2513 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-05-16", "window": { "start": { "local": "1983-05-16T11:04:07+03:30", "utc": "1983-05-16T07:34:07Z", "ms": 421918447308.1161 }, "end": { "local": "1983-05-16T11:52:07+03:30", "utc": "1983-05-16T08:22:07Z", "ms": 421921327308.1161 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-05-17", "window": { "start": { "local": "1983-05-17T11:04:08+03:30", "utc": "1983-05-17T07:34:08Z", "ms": 422004848267.3009 }, "end": { "local": "1983-05-17T11:52:08+03:30", "utc": "1983-05-17T08:22:08Z", "ms": 422007728267.3009 } }, "covered_min": 31, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 14:04 on Mon 16 May to 11:35 on Tue 17 May.", "fact": "1983-05-16T10:33:52Z → 1983-05-17T08:05:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 16th, 11:04–11:52 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 31 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: unstated → only-day · margin 1001 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Mashhad, 1983: Tuesday 17 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": "1983-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-17", "confidence": "determinate" } ], "quote": "In Mashhad, Śaṅkara Jayantī 1983 falls on Tuesday 17 May. Pañcamī runs from 14:04 on Mon 16 May to 11:35 on Tue 17 May and covers 31 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6822, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1983-05-18T09:10:28+03:30", "utc": "1983-05-18T05:40:28Z", "ms": 422084427708.25476 }, "end": { "local": "1983-05-19T06:52:26+03:30", "utc": "1983-05-19T03:22:26Z", "ms": 422162545795.559 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-18T09:10:28+03:30", "utc": "1983-05-18T05:40:28Z", "ms": 422084427708.25476 }, "end": { "local": "1983-05-19T06:52:26+03:30", "utc": "1983-05-19T03:22:26Z", "ms": 422162545795.559 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-05-18", "window": { "start": { "local": "1983-05-18T11:04:10+03:30", "utc": "1983-05-18T07:34:10Z", "ms": 422091249759.52734 }, "end": { "local": "1983-05-18T11:52:10+03:30", "utc": "1983-05-18T08:22:10Z", "ms": 422094129759.52734 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-05-19", "window": { "start": { "local": "1983-05-19T11:04:12+03:30", "utc": "1983-05-19T07:34:12Z", "ms": 422177651778.1168 }, "end": { "local": "1983-05-19T11:52:12+03:30", "utc": "1983-05-19T08:22:12Z", "ms": 422180531778.1168 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 09:10 on Wed 18 May to 06:52 on Thu 19 May.", "fact": "1983-05-18T05:40:28Z → 1983-05-19T03:22:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 18th, 11:04–11:52 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6822 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Mashhad, 1983: Wednesday 18 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": "1983-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-18", "confidence": "determinate" } ], "quote": "In Mashhad, Gaṅgotpatti (Ganga Saptami) 1983 falls on Wednesday 18 May. Saptamī runs from 09:10 on Wed 18 May to 06:52 on Thu 19 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-05-22", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11534, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-05-22T01:08:45+03:30", "utc": "1983-05-21T21:38:45Z", "ms": 422401124546.37244 }, "end": { "local": "1983-05-22T23:46:35+03:30", "utc": "1983-05-22T20:16:35Z", "ms": 422482595154.3277 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-22T01:08:45+03:30", "utc": "1983-05-21T21:38:45Z", "ms": 422401124546.37244 }, "end": { "local": "1983-05-22T23:46:35+03:30", "utc": "1983-05-22T20:16:35Z", "ms": 422482595154.3277 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-05-22", "window": { "start": { "local": "1983-05-22T04:20:59+03:30", "utc": "1983-05-22T00:50:59Z", "ms": 422412658818.6345 }, "end": { "local": "1983-05-22T04:20:59+03:30", "utc": "1983-05-22T00:50:59Z", "ms": 422412658818.6345 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-05-23", "window": { "start": { "local": "1983-05-23T04:20:21+03:30", "utc": "1983-05-23T00:50:21Z", "ms": 422499021124.9392 }, "end": { "local": "1983-05-23T04:20:21+03:30", "utc": "1983-05-23T00:50:21Z", "ms": 422499021124.9392 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:09 on Sun 22 May to 23:47 on Sun 22 May.", "fact": "1983-05-21T21:38:45Z → 1983-05-22T20:16:35Z" }, { "step": "kaala", "text": "Sunrise is at 04:21 on the 22nd and 04:20 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 22nd and is not on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11534 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Mashhad, 1983: Sunday 22 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": "1983-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-22", "confidence": "determinate" } ], "quote": "In Mashhad, Mohinī Ekādaśī 1983 falls on Sunday 22 May. Ekādaśī runs from 01:09 on Sun 22 May to 23:47 on Sun 22 May and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-05-22", "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/1983/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39178, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1983-05-22T23:46:35+03:30", "utc": "1983-05-22T20:16:35Z", "ms": 422482595154.3277 }, "end": { "local": "1983-05-23T22:45:23+03:30", "utc": "1983-05-23T19:15:23Z", "ms": 422565323357.62915 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-22T23:46:35+03:30", "utc": "1983-05-22T20:16:35Z", "ms": 422482595154.3277 }, "end": { "local": "1983-05-23T22:45:23+03:30", "utc": "1983-05-23T19:15:23Z", "ms": 422565323357.62915 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-05-22", "window": { "start": { "local": "1983-05-22T11:04:21+03:30", "utc": "1983-05-22T07:34:21Z", "ms": 422436860933.15955 }, "end": { "local": "1983-05-22T11:52:21+03:30", "utc": "1983-05-22T08:22:21Z", "ms": 422439740933.15955 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-05-23", "window": { "start": { "local": "1983-05-23T11:04:25+03:30", "utc": "1983-05-23T07:34:25Z", "ms": 422523264999.9126 }, "end": { "local": "1983-05-23T11:52:25+03:30", "utc": "1983-05-23T08:22:25Z", "ms": 422526144999.9126 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 23:47 on Sun 22 May to 22:45 on Mon 23 May.", "fact": "1983-05-22T20:16:35Z → 1983-05-23T19:15:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 22nd, 11:04–11:52 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 39178 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Mashhad, 1983: Monday 23 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": "1983-05-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-23", "confidence": "determinate" } ], "quote": "In Mashhad, Paraśurāma Dvādaśī 1983 falls on Monday 23 May. Dvādaśī runs from 23:47 on Sun 22 May to 22:45 on Mon 23 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39178, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1983-05-22T23:46:35+03:30", "utc": "1983-05-22T20:16:35Z", "ms": 422482595154.3277 }, "end": { "local": "1983-05-23T22:45:23+03:30", "utc": "1983-05-23T19:15:23Z", "ms": 422565323357.62915 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-22T23:46:35+03:30", "utc": "1983-05-22T20:16:35Z", "ms": 422482595154.3277 }, "end": { "local": "1983-05-23T22:45:23+03:30", "utc": "1983-05-23T19:15:23Z", "ms": 422565323357.62915 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-05-22", "window": { "start": { "local": "1983-05-22T11:04:21+03:30", "utc": "1983-05-22T07:34:21Z", "ms": 422436860933.15955 }, "end": { "local": "1983-05-22T11:52:21+03:30", "utc": "1983-05-22T08:22:21Z", "ms": 422439740933.15955 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-05-23", "window": { "start": { "local": "1983-05-23T11:04:25+03:30", "utc": "1983-05-23T07:34:25Z", "ms": 422523264999.9126 }, "end": { "local": "1983-05-23T11:52:25+03:30", "utc": "1983-05-23T08:22:25Z", "ms": 422526144999.9126 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 23:47 on Sun 22 May to 22:45 on Mon 23 May.", "fact": "1983-05-22T20:16:35Z → 1983-05-23T19:15:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 22nd, 11:04–11:52 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 39178 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Mashhad, 1983: Monday 23 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": "1983-05-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-23", "confidence": "determinate" } ], "quote": "In Mashhad, Rukmiṇī Dvādaśī 1983 falls on Monday 23 May. Dvādaśī runs from 23:47 on Sun 22 May to 22:45 on Mon 23 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/pradosha-vrata?on=1983-05-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8005, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-05-23T22:45:23+03:30", "utc": "1983-05-23T19:15:23Z", "ms": 422565323357.62915 }, "end": { "local": "1983-05-24T22:08:15+03:30", "utc": "1983-05-24T18:38:15Z", "ms": 422649494721.8152 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-23T22:45:23+03:30", "utc": "1983-05-23T19:15:23Z", "ms": 422565323357.62915 }, "end": { "local": "1983-05-24T22:08:15+03:30", "utc": "1983-05-24T18:38:15Z", "ms": 422649494721.8152 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-05-23", "window": { "start": { "local": "1983-05-23T18:36:29+03:30", "utc": "1983-05-23T15:06:29Z", "ms": 422550388874.8859 }, "end": { "local": "1983-05-23T19:54:15+03:30", "utc": "1983-05-23T16:24:15Z", "ms": 422555055028.97614 } }, "covered_min": 0, "window_min": 78, "qualifies": false }, { "local_date": "1983-05-24", "window": { "start": { "local": "1983-05-24T18:37:14+03:30", "utc": "1983-05-24T15:07:14Z", "ms": 422636834099.8877 }, "end": { "local": "1983-05-24T19:54:50+03:30", "utc": "1983-05-24T16:24:50Z", "ms": 422641489626.9991 } }, "covered_min": 78, "window_min": 78, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:45 on Mon 23 May to 22:08 on Tue 24 May.", "fact": "1983-05-23T19:15:23Z → 1983-05-24T18:38:15Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:36–19:54 on the 23rd, 18:37–19:55 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 78 minutes on the 23rd and 78 of 78 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 8005 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Tuesday 24 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": "1983-05-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-24", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Tuesday 24 May. Trayodaśī runs from 22:45 on Mon 23 May to 22:08 on Tue 24 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-05-24", "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/1983/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7366, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-05-24T22:08:15+03:30", "utc": "1983-05-24T18:38:15Z", "ms": 422649494721.8152 }, "end": { "local": "1983-05-25T21:58:10+03:30", "utc": "1983-05-25T18:28:10Z", "ms": 422735289961.7467 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-24T22:08:15+03:30", "utc": "1983-05-24T18:38:15Z", "ms": 422649494721.8152 }, "end": { "local": "1983-05-25T21:58:10+03:30", "utc": "1983-05-25T18:28:10Z", "ms": 422735289961.7467 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-05-24", "window": { "start": { "local": "1983-05-24T18:37:14+03:30", "utc": "1983-05-24T15:07:14Z", "ms": 422636834099.8877 }, "end": { "local": "1983-05-24T19:54:50+03:30", "utc": "1983-05-24T16:24:50Z", "ms": 422641489626.9991 } }, "covered_min": 0, "window_min": 78, "qualifies": false }, { "local_date": "1983-05-25", "window": { "start": { "local": "1983-05-25T18:37:59+03:30", "utc": "1983-05-25T15:07:59Z", "ms": 422723278693.2235 }, "end": { "local": "1983-05-25T19:55:24+03:30", "utc": "1983-05-25T16:25:24Z", "ms": 422727923895.43494 } }, "covered_min": 77, "window_min": 77, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:08 on Tue 24 May to 21:58 on Wed 25 May.", "fact": "1983-05-24T18:38:15Z → 1983-05-25T18:28:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:37–19:55 on the 24th, 18:38–19:55 on the 25th.", "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 78 minutes on the 24th and 77 of 77 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: paraviddha → only-day · margin 7366 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Mashhad, 1983: Wednesday 25 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": "1983-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-25", "confidence": "determinate" } ], "quote": "In Mashhad, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1983 falls on Wednesday 25 May. Caturdaśī runs from 22:08 on Tue 24 May to 21:58 on Wed 25 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36335, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-05-25T21:58:10+03:30", "utc": "1983-05-25T18:28:10Z", "ms": 422735289961.7467 }, "end": { "local": "1983-05-26T22:17:41+03:30", "utc": "1983-05-26T18:47:41Z", "ms": 422822860595.19293 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-25T21:58:10+03:30", "utc": "1983-05-25T18:28:10Z", "ms": 422735289961.7467 }, "end": { "local": "1983-05-26T22:17:41+03:30", "utc": "1983-05-26T18:47:41Z", "ms": 422822860595.19293 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-05-25", "window": { "start": { "local": "1983-05-25T11:04:35+03:30", "utc": "1983-05-25T07:34:35Z", "ms": 422696074623.22327 }, "end": { "local": "1983-05-25T11:52:35+03:30", "utc": "1983-05-25T08:22:35Z", "ms": 422698954623.22327 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-05-26", "window": { "start": { "local": "1983-05-26T11:04:40+03:30", "utc": "1983-05-26T07:34:40Z", "ms": 422782480167.39453 }, "end": { "local": "1983-05-26T11:52:40+03:30", "utc": "1983-05-26T08:22:40Z", "ms": 422785360167.39453 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:58 on Wed 25 May to 22:18 on Thu 26 May.", "fact": "1983-05-25T18:28:10Z → 1983-05-26T18:47:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 25th, 11:05–11:53 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36335 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Mashhad, 1983: Thursday 26 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": "1983-05-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-26", "confidence": "determinate" } ], "quote": "In Mashhad, Buddha Pūrṇimā 1983 falls on Thursday 26 May. Pūrṇimā runs from 21:58 on Wed 25 May to 22:18 on Thu 26 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36335, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-05-25T21:58:10+03:30", "utc": "1983-05-25T18:28:10Z", "ms": 422735289961.7467 }, "end": { "local": "1983-05-26T22:17:41+03:30", "utc": "1983-05-26T18:47:41Z", "ms": 422822860595.19293 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-25T21:58:10+03:30", "utc": "1983-05-25T18:28:10Z", "ms": 422735289961.7467 }, "end": { "local": "1983-05-26T22:17:41+03:30", "utc": "1983-05-26T18:47:41Z", "ms": 422822860595.19293 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-05-25", "window": { "start": { "local": "1983-05-25T11:04:35+03:30", "utc": "1983-05-25T07:34:35Z", "ms": 422696074623.22327 }, "end": { "local": "1983-05-25T11:52:35+03:30", "utc": "1983-05-25T08:22:35Z", "ms": 422698954623.22327 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-05-26", "window": { "start": { "local": "1983-05-26T11:04:40+03:30", "utc": "1983-05-26T07:34:40Z", "ms": 422782480167.39453 }, "end": { "local": "1983-05-26T11:52:40+03:30", "utc": "1983-05-26T08:22:40Z", "ms": 422785360167.39453 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:58 on Wed 25 May to 22:18 on Thu 26 May.", "fact": "1983-05-25T18:28:10Z → 1983-05-26T18:47:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 25th, 11:05–11:53 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36335 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Mashhad, 1983: Thursday 26 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": "1983-05-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-26", "confidence": "determinate" } ], "quote": "In Mashhad, Sampat Gaurī Vrata 1983 falls on Thursday 26 May. Pūrṇimā runs from 21:58 on Wed 25 May to 22:18 on Thu 26 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sankashta-chaturthi?on=1983-05-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18206, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-05-30T02:18:54+03:30", "utc": "1983-05-29T22:48:54Z", "ms": 423096533854.10333 }, "end": { "local": "1983-05-31T04:30:28+03:30", "utc": "1983-05-31T01:00:28Z", "ms": 423190827766.83655 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-05-30T02:18:54+03:30", "utc": "1983-05-29T22:48:54Z", "ms": 423096533854.10333 }, "end": { "local": "1983-05-31T04:30:28+03:30", "utc": "1983-05-31T01:00:28Z", "ms": 423190827766.83655 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-05-29", "window": { "start": { "local": "1983-05-29T21:15:28+03:30", "utc": "1983-05-29T17:45:28Z", "ms": 423078327557.8535 }, "end": { "local": "1983-05-29T21:15:28+03:30", "utc": "1983-05-29T17:45:28Z", "ms": 423078327557.8535 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-05-30", "window": { "start": { "local": "1983-05-30T22:03:32+03:30", "utc": "1983-05-30T18:33:32Z", "ms": 423167611938.78217 }, "end": { "local": "1983-05-30T22:03:32+03:30", "utc": "1983-05-30T18:33:32Z", "ms": 423167611938.78217 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:19 on Mon 30 May to 04:30 on Tue 31 May.", "fact": "1983-05-29T22:48:54Z → 1983-05-31T01:00:28Z" }, { "step": "kaala", "text": "Moonrise is at 21:15 on the 29th and 22:04 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18206 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Monday 30 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": "1983-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-05-30", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Monday 30 May. Caturthī runs from 02:19 on Mon 30 May to 04:30 on Tue 31 May and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-05-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1983/ekadashi?on=1983-06-07", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39691, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-06-06T15:23:56+03:30", "utc": "1983-06-06T11:53:56Z", "ms": 423748436137.4776 }, "end": { "local": "1983-06-07T15:15:46+03:30", "utc": "1983-06-07T11:45:46Z", "ms": 423834346463.79596 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-06T15:23:56+03:30", "utc": "1983-06-06T11:53:56Z", "ms": 423748436137.4776 }, "end": { "local": "1983-06-07T15:15:46+03:30", "utc": "1983-06-07T11:45:46Z", "ms": 423834346463.79596 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-06-06", "window": { "start": { "local": "1983-06-06T04:14:28+03:30", "utc": "1983-06-06T00:44:28Z", "ms": 423708268001.2978 }, "end": { "local": "1983-06-06T04:14:28+03:30", "utc": "1983-06-06T00:44:28Z", "ms": 423708268001.2978 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-06-07", "window": { "start": { "local": "1983-06-07T04:14:16+03:30", "utc": "1983-06-07T00:44:16Z", "ms": 423794655655.78253 }, "end": { "local": "1983-06-07T04:14:16+03:30", "utc": "1983-06-07T00:44:16Z", "ms": 423794655655.78253 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:24 on Mon 6 Jun to 15:16 on Tue 7 Jun.", "fact": "1983-06-06T11:53:56Z → 1983-06-07T11:45:46Z" }, { "step": "kaala", "text": "Sunrise is at 04:14 on the 6th and 04:14 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 39691 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Mashhad, 1983: Tuesday 7 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": "1983-06-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-07", "confidence": "determinate" } ], "quote": "In Mashhad, Aparā Ekādaśī 1983 falls on Tuesday 7 June. Ekādaśī runs from 15:24 on Mon 6 Jun to 15:16 on Tue 7 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-06-07", "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/1983/pradosha-vrata?on=1983-06-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15810, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-06-08T14:23:28+03:30", "utc": "1983-06-08T10:53:28Z", "ms": 423917608192.5978 }, "end": { "local": "1983-06-09T12:50:34+03:30", "utc": "1983-06-09T09:20:34Z", "ms": 423998433725.9235 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-08T14:23:28+03:30", "utc": "1983-06-08T10:53:28Z", "ms": 423917608192.5978 }, "end": { "local": "1983-06-09T12:50:34+03:30", "utc": "1983-06-09T09:20:34Z", "ms": 423998433725.9235 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-06-08", "window": { "start": { "local": "1983-06-08T18:46:58+03:30", "utc": "1983-06-08T15:16:58Z", "ms": 423933418420.33185 }, "end": { "local": "1983-06-08T20:02:34+03:30", "utc": "1983-06-08T16:32:34Z", "ms": 423937954119.76294 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "1983-06-09", "window": { "start": { "local": "1983-06-09T18:47:30+03:30", "utc": "1983-06-09T15:17:30Z", "ms": 424019849503.18256 }, "end": { "local": "1983-06-09T20:03:00+03:30", "utc": "1983-06-09T16:33:00Z", "ms": 424024380103.91516 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:23 on Wed 8 Jun to 12:51 on Thu 9 Jun.", "fact": "1983-06-08T10:53:28Z → 1983-06-09T09:20:34Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:47–20:03 on the 8th, 18:47–20:03 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 76 of 76 minutes on the 8th and 0 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 15810 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Wednesday 8 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": "1983-06-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-08", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Wednesday 8 June. Trayodaśī runs from 14:23 on Wed 8 Jun to 12:51 on Thu 9 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-06-08", "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/1983/shivaratri?on=1983-06-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36966, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-06-09T12:50:34+03:30", "utc": "1983-06-09T09:20:34Z", "ms": 423998433725.9235 }, "end": { "local": "1983-06-10T10:42:50+03:30", "utc": "1983-06-10T07:12:50Z", "ms": 424077170175.9432 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-09T12:50:34+03:30", "utc": "1983-06-09T09:20:34Z", "ms": 423998433725.9235 }, "end": { "local": "1983-06-10T10:42:50+03:30", "utc": "1983-06-10T07:12:50Z", "ms": 424077170175.9432 } }, "kaala": "nishita", "days": [ { "local_date": "1983-06-09", "window": { "start": { "local": "1983-06-09T23:06:39+03:30", "utc": "1983-06-09T19:36:39Z", "ms": 424035399255.9297 }, "end": { "local": "1983-06-09T23:54:39+03:30", "utc": "1983-06-09T20:24:39Z", "ms": 424038279255.9297 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-06-10", "window": { "start": { "local": "1983-06-10T23:06:51+03:30", "utc": "1983-06-10T19:36:51Z", "ms": 424121811474.9904 }, "end": { "local": "1983-06-10T23:54:51+03:30", "utc": "1983-06-10T20:24:51Z", "ms": 424124691474.9904 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:51 on Thu 9 Jun to 10:43 on Fri 10 Jun.", "fact": "1983-06-09T09:20:34Z → 1983-06-10T07:12:50Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:07–23:55 on the 9th, 23:07–23:55 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36966 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Thursday 9 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": "1983-06-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-09", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Thursday 9 June. Caturdaśī runs from 12:51 on Thu 9 Jun to 10:43 on Fri 10 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-06-09", "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/1983/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32465, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1983-06-13T02:06:25+03:30", "utc": "1983-06-12T22:36:25Z", "ms": 424305385008.64374 }, "end": { "local": "1983-06-13T22:57:04+03:30", "utc": "1983-06-13T19:27:04Z", "ms": 424380423900.0072 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-13T02:06:25+03:30", "utc": "1983-06-12T22:36:25Z", "ms": 424305385008.64374 }, "end": { "local": "1983-06-13T22:57:04+03:30", "utc": "1983-06-13T19:27:04Z", "ms": 424380423900.0072 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-06-13", "window": { "start": { "local": "1983-06-13T11:07:30+03:30", "utc": "1983-06-13T07:37:30Z", "ms": 424337849596.43335 }, "end": { "local": "1983-06-13T11:55:30+03:30", "utc": "1983-06-13T08:25:30Z", "ms": 424340729596.43335 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-06-14", "window": { "start": { "local": "1983-06-14T11:07:42+03:30", "utc": "1983-06-14T07:37:42Z", "ms": 424424261741.3025 }, "end": { "local": "1983-06-14T11:55:42+03:30", "utc": "1983-06-14T08:25:42Z", "ms": 424427141741.3025 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 02:06 on Mon 13 Jun to 22:57 on Mon 13 Jun.", "fact": "1983-06-12T22:36:25Z → 1983-06-13T19:27:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 13th, 11:08–11:56 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 32465 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Mashhad, 1983: Monday 13 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": "1983-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-13", "confidence": "determinate" } ], "quote": "In Mashhad, Rambhā Tṛtīyā 1983 falls on Monday 13 June. Tṛtīyā runs from 02:06 on Mon 13 Jun to 22:57 on Mon 13 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vinayaka-chaturthi?on=1983-06-14", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28597, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-06-13T22:57:04+03:30", "utc": "1983-06-13T19:27:04Z", "ms": 424380423900.0072 }, "end": { "local": "1983-06-14T19:52:19+03:30", "utc": "1983-06-14T16:22:19Z", "ms": 424455739130.4157 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-13T22:57:04+03:30", "utc": "1983-06-13T19:27:04Z", "ms": 424380423900.0072 }, "end": { "local": "1983-06-14T19:52:19+03:30", "utc": "1983-06-14T16:22:19Z", "ms": 424455739130.4157 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-06-13", "window": { "start": { "local": "1983-06-13T11:07:30+03:30", "utc": "1983-06-13T07:37:30Z", "ms": 424337849596.43335 }, "end": { "local": "1983-06-13T11:55:30+03:30", "utc": "1983-06-13T08:25:30Z", "ms": 424340729596.43335 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-06-14", "window": { "start": { "local": "1983-06-14T11:07:42+03:30", "utc": "1983-06-14T07:37:42Z", "ms": 424424261741.3025 }, "end": { "local": "1983-06-14T11:55:42+03:30", "utc": "1983-06-14T08:25:42Z", "ms": 424427141741.3025 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:57 on Mon 13 Jun to 19:52 on Tue 14 Jun.", "fact": "1983-06-13T19:27:04Z → 1983-06-14T16:22:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:07–11:55 on the 13th, 11:08–11:56 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28597 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Tuesday 14 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": "1983-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-14", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Tuesday 14 June. Caturthī runs from 22:57 on Mon 13 Jun to 19:52 on Tue 14 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-06-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1983/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8881, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1983-06-15T16:59:16+03:30", "utc": "1983-06-15T13:29:16Z", "ms": 424531756126.87805 }, "end": { "local": "1983-06-16T14:24:07+03:30", "utc": "1983-06-16T10:54:07Z", "ms": 424608847170.43134 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-15T16:59:16+03:30", "utc": "1983-06-15T13:29:16Z", "ms": 424531756126.87805 }, "end": { "local": "1983-06-16T14:24:07+03:30", "utc": "1983-06-16T10:54:07Z", "ms": 424608847170.43134 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-06-15", "window": { "start": { "local": "1983-06-15T11:07:54+03:30", "utc": "1983-06-15T07:37:54Z", "ms": 424510674013.5453 }, "end": { "local": "1983-06-15T11:55:54+03:30", "utc": "1983-06-15T08:25:54Z", "ms": 424513554013.5453 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-06-16", "window": { "start": { "local": "1983-06-16T11:08:06+03:30", "utc": "1983-06-16T07:38:06Z", "ms": 424597086387.36926 }, "end": { "local": "1983-06-16T11:56:06+03:30", "utc": "1983-06-16T08:26:06Z", "ms": 424599966387.36926 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 16:59 on Wed 15 Jun to 14:24 on Thu 16 Jun.", "fact": "1983-06-15T13:29:16Z → 1983-06-16T10:54:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 15th, 11:08–11:56 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8881 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Mashhad, 1983: Thursday 16 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": "1983-06-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-16", "confidence": "determinate" } ], "quote": "In Mashhad, Araṇya Gaurī Vrata 1983 falls on Thursday 16 June. Ṣaṣṭhī runs from 16:59 on Wed 15 Jun to 14:24 on Thu 16 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8881, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1983-06-15T16:59:16+03:30", "utc": "1983-06-15T13:29:16Z", "ms": 424531756126.87805 }, "end": { "local": "1983-06-16T14:24:07+03:30", "utc": "1983-06-16T10:54:07Z", "ms": 424608847170.43134 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-15T16:59:16+03:30", "utc": "1983-06-15T13:29:16Z", "ms": 424531756126.87805 }, "end": { "local": "1983-06-16T14:24:07+03:30", "utc": "1983-06-16T10:54:07Z", "ms": 424608847170.43134 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-06-15", "window": { "start": { "local": "1983-06-15T11:07:54+03:30", "utc": "1983-06-15T07:37:54Z", "ms": 424510674013.5453 }, "end": { "local": "1983-06-15T11:55:54+03:30", "utc": "1983-06-15T08:25:54Z", "ms": 424513554013.5453 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-06-16", "window": { "start": { "local": "1983-06-16T11:08:06+03:30", "utc": "1983-06-16T07:38:06Z", "ms": 424597086387.36926 }, "end": { "local": "1983-06-16T11:56:06+03:30", "utc": "1983-06-16T08:26:06Z", "ms": 424599966387.36926 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 16:59 on Wed 15 Jun to 14:24 on Thu 16 Jun.", "fact": "1983-06-15T13:29:16Z → 1983-06-16T10:54:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 15th, 11:08–11:56 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8881 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Mashhad, 1983: Thursday 16 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": "1983-06-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-16", "confidence": "determinate" } ], "quote": "In Mashhad, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1983 falls on Thursday 16 June. Ṣaṣṭhī runs from 16:59 on Wed 15 Jun to 14:24 on Thu 16 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-06-21", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14270, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-06-20T08:26:07+03:30", "utc": "1983-06-20T04:56:07Z", "ms": 424932966741.8682 }, "end": { "local": "1983-06-21T08:12:10+03:30", "utc": "1983-06-21T04:42:10Z", "ms": 425018529781.9083 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-20T08:26:07+03:30", "utc": "1983-06-20T04:56:07Z", "ms": 424932966741.8682 }, "end": { "local": "1983-06-21T08:12:10+03:30", "utc": "1983-06-21T04:42:10Z", "ms": 425018529781.9083 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-06-20", "window": { "start": { "local": "1983-06-20T04:14:09+03:30", "utc": "1983-06-20T00:44:09Z", "ms": 424917849092.8451 }, "end": { "local": "1983-06-20T04:14:09+03:30", "utc": "1983-06-20T00:44:09Z", "ms": 424917849092.8451 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-06-21", "window": { "start": { "local": "1983-06-21T04:14:20+03:30", "utc": "1983-06-21T00:44:20Z", "ms": 425004259897.3036 }, "end": { "local": "1983-06-21T04:14:20+03:30", "utc": "1983-06-21T00:44:20Z", "ms": 425004259897.3036 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:26 on Mon 20 Jun to 08:12 on Tue 21 Jun.", "fact": "1983-06-20T04:56:07Z → 1983-06-21T04:42:10Z" }, { "step": "kaala", "text": "Sunrise is at 04:14 on the 20th and 04:14 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 20th and is on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14270 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Mashhad, 1983: Tuesday 21 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": "1983-06-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-21", "confidence": "determinate" } ], "quote": "In Mashhad, Nirjalā Ekādaśī 1983 falls on Tuesday 21 June. Ekādaśī runs from 08:26 on Mon 20 Jun to 08:12 on Tue 21 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-06-21", "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/1983/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9654, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1983-06-21T08:12:10+03:30", "utc": "1983-06-21T04:42:10Z", "ms": 425018529781.9083 }, "end": { "local": "1983-06-22T08:28:28+03:30", "utc": "1983-06-22T04:58:28Z", "ms": 425105907771.4103 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-21T08:12:10+03:30", "utc": "1983-06-21T04:42:10Z", "ms": 425018529781.9083 }, "end": { "local": "1983-06-22T08:28:28+03:30", "utc": "1983-06-22T04:58:28Z", "ms": 425105907771.4103 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-06-21", "window": { "start": { "local": "1983-06-21T11:09:09+03:30", "utc": "1983-06-21T07:39:09Z", "ms": 425029148963.1627 }, "end": { "local": "1983-06-21T11:57:09+03:30", "utc": "1983-06-21T08:27:09Z", "ms": 425032028963.1627 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-06-22", "window": { "start": { "local": "1983-06-22T11:09:21+03:30", "utc": "1983-06-22T07:39:21Z", "ms": 425115561469.29895 }, "end": { "local": "1983-06-22T11:57:21+03:30", "utc": "1983-06-22T08:27:21Z", "ms": 425118441469.29895 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 08:12 on Tue 21 Jun to 08:28 on Wed 22 Jun.", "fact": "1983-06-21T04:42:10Z → 1983-06-22T04:58:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 21st, 11:09–11:57 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 9654 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Mashhad, 1983: Tuesday 21 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": "1983-06-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-21", "confidence": "determinate" } ], "quote": "In Mashhad, Śrī Rāma Dvādaśī 1983 falls on Tuesday 21 June. Dvādaśī runs from 08:12 on Tue 21 Jun to 08:28 on Wed 22 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/pradosha-vrata?on=1983-06-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34727, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-06-22T08:28:28+03:30", "utc": "1983-06-22T04:58:28Z", "ms": 425105907771.4103 }, "end": { "local": "1983-06-23T09:13:35+03:30", "utc": "1983-06-23T05:43:35Z", "ms": 425195015071.92633 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-22T08:28:28+03:30", "utc": "1983-06-22T04:58:28Z", "ms": 425105907771.4103 }, "end": { "local": "1983-06-23T09:13:35+03:30", "utc": "1983-06-23T05:43:35Z", "ms": 425195015071.92633 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-06-22", "window": { "start": { "local": "1983-06-22T18:52:11+03:30", "utc": "1983-06-22T15:22:11Z", "ms": 425143330713.11414 }, "end": { "local": "1983-06-22T20:07:11+03:30", "utc": "1983-06-22T16:37:11Z", "ms": 425147831425.4858 } }, "covered_min": 75, "window_min": 75, "qualifies": true }, { "local_date": "1983-06-23", "window": { "start": { "local": "1983-06-23T18:52:22+03:30", "utc": "1983-06-23T15:22:22Z", "ms": 425229741794.23065 }, "end": { "local": "1983-06-23T20:07:23+03:30", "utc": "1983-06-23T16:37:23Z", "ms": 425234243070.49054 } }, "covered_min": 0, "window_min": 75, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:28 on Wed 22 Jun to 09:14 on Thu 23 Jun.", "fact": "1983-06-22T04:58:28Z → 1983-06-23T05:43:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:07 on the 22nd, 18:52–20:07 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 75 of 75 minutes on the 22nd and 0 of 75 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 34727 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Wednesday 22 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": "1983-06-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-22", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Wednesday 22 June. Trayodaśī runs from 08:28 on Wed 22 Jun to 09:14 on Thu 23 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-06-22", "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/1983/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24653, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-06-24T10:25:32+03:30", "utc": "1983-06-24T06:55:32Z", "ms": 425285732453.5276 }, "end": { "local": "1983-06-25T12:01:46+03:30", "utc": "1983-06-25T08:31:46Z", "ms": 425377906049.19684 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-24T10:25:32+03:30", "utc": "1983-06-24T06:55:32Z", "ms": 425285732453.5276 }, "end": { "local": "1983-06-25T12:01:46+03:30", "utc": "1983-06-25T08:31:46Z", "ms": 425377906049.19684 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-06-24", "window": { "start": { "local": "1983-06-24T18:52:31+03:30", "utc": "1983-06-24T15:22:31Z", "ms": 425316151255.4384 }, "end": { "local": "1983-06-24T20:07:34+03:30", "utc": "1983-06-24T16:37:34Z", "ms": 425320653505.7864 } }, "covered_min": 75, "window_min": 75, "qualifies": true }, { "local_date": "1983-06-25", "window": { "start": { "local": "1983-06-25T18:52:39+03:30", "utc": "1983-06-25T15:22:39Z", "ms": 425402559080.97864 }, "end": { "local": "1983-06-25T20:07:43+03:30", "utc": "1983-06-25T16:37:43Z", "ms": 425407062714.4916 } }, "covered_min": 0, "window_min": 75, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:26 on Fri 24 Jun to 12:02 on Sat 25 Jun.", "fact": "1983-06-24T06:55:32Z → 1983-06-25T08:31:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:53–20:08 on the 24th, 18:53–20:08 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 75 of 75 minutes on the 24th and 0 of 75 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: purvaviddha → only-day · margin 24653 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Mashhad, 1983: Friday 24 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": "1983-06-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-24", "confidence": "determinate" } ], "quote": "In Mashhad, Vaṭa Sāvitrī Vrata 1983 falls on Friday 24 June. Pūrṇimā runs from 10:26 on Fri 24 Jun to 12:02 on Sat 25 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sankashta-chaturthi?on=1983-06-28", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-06-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3136, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-06-28T18:36:45+03:30", "utc": "1983-06-28T15:06:45Z", "ms": 425660805055.1577 }, "end": { "local": "1983-06-29T21:03:51+03:30", "utc": "1983-06-29T17:33:51Z", "ms": 425756030962.79614 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-06-28T18:36:45+03:30", "utc": "1983-06-28T15:06:45Z", "ms": 425660805055.1577 }, "end": { "local": "1983-06-29T21:03:51+03:30", "utc": "1983-06-29T17:33:51Z", "ms": 425756030962.79614 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-06-28", "window": { "start": { "local": "1983-06-28T21:22:00+03:30", "utc": "1983-06-28T17:52:00Z", "ms": 425670720280.021 }, "end": { "local": "1983-06-28T21:22:00+03:30", "utc": "1983-06-28T17:52:00Z", "ms": 425670720280.021 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-06-29", "window": { "start": { "local": "1983-06-29T21:56:07+03:30", "utc": "1983-06-29T18:26:07Z", "ms": 425759166961.9567 }, "end": { "local": "1983-06-29T21:56:07+03:30", "utc": "1983-06-29T18:26:07Z", "ms": 425759166961.9567 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:37 on Tue 28 Jun to 21:04 on Wed 29 Jun.", "fact": "1983-06-28T15:06:45Z → 1983-06-29T17:33:51Z" }, { "step": "kaala", "text": "Moonrise is at 21:22 on the 28th and 21:56 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3136 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Tuesday 28 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-06-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-06-28", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Tuesday 28 June. Caturthī runs from 18:37 on Tue 28 Jun to 21:04 on Wed 29 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-06-28", "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/1983/ekadashi?on=1983-07-06", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1180, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-07-06T04:00:10+03:30", "utc": "1983-07-06T00:30:10Z", "ms": 426299410275.1524 }, "end": { "local": "1983-07-07T02:47:22+03:30", "utc": "1983-07-06T23:17:22Z", "ms": 426381441615.6186 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-06T04:00:10+03:30", "utc": "1983-07-06T00:30:10Z", "ms": 426299410275.1524 }, "end": { "local": "1983-07-07T02:47:22+03:30", "utc": "1983-07-06T23:17:22Z", "ms": 426381441615.6186 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-07-06", "window": { "start": { "local": "1983-07-06T04:19:50+03:30", "utc": "1983-07-06T00:49:50Z", "ms": 426300590059.1919 }, "end": { "local": "1983-07-06T04:19:50+03:30", "utc": "1983-07-06T00:49:50Z", "ms": 426300590059.1919 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-07-07", "window": { "start": { "local": "1983-07-07T04:20:22+03:30", "utc": "1983-07-07T00:50:22Z", "ms": 426387022121.3439 }, "end": { "local": "1983-07-07T04:20:22+03:30", "utc": "1983-07-07T00:50:22Z", "ms": 426387022121.3439 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:00 on Wed 6 Jul to 02:47 on Thu 7 Jul.", "fact": "1983-07-06T00:30:10Z → 1983-07-06T23:17:22Z" }, { "step": "kaala", "text": "Sunrise is at 04:20 on the 6th and 04:20 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 1180 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Mashhad, 1983: Wednesday 6 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": "1983-07-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-06", "confidence": "determinate" } ], "quote": "In Mashhad, Yoginī Ekādaśī 1983 falls on Wednesday 6 July. Ekādaśī runs from 04:00 on Wed 6 Jul to 02:47 on Thu 7 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-07-06", "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/1983/pradosha-vrata?on=1983-07-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7808, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-07-08T00:51:26+03:30", "utc": "1983-07-07T21:21:26Z", "ms": 426460885882.00507 }, "end": { "local": "1983-07-08T22:17:51+03:30", "utc": "1983-07-08T18:47:51Z", "ms": 426538071039.1298 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-08T00:51:26+03:30", "utc": "1983-07-07T21:21:26Z", "ms": 426460885882.00507 }, "end": { "local": "1983-07-08T22:17:51+03:30", "utc": "1983-07-08T18:47:51Z", "ms": 426538071039.1298 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-07-07", "window": { "start": { "local": "1983-07-07T18:52:00+03:30", "utc": "1983-07-07T15:22:00Z", "ms": 426439320083.248 }, "end": { "local": "1983-07-07T20:07:51+03:30", "utc": "1983-07-07T16:37:51Z", "ms": 426443871437.5337 } }, "covered_min": 0, "window_min": 76, "qualifies": false }, { "local_date": "1983-07-08", "window": { "start": { "local": "1983-07-08T18:51:46+03:30", "utc": "1983-07-08T15:21:46Z", "ms": 426525705679.39404 }, "end": { "local": "1983-07-08T20:07:44+03:30", "utc": "1983-07-08T16:37:44Z", "ms": 426530263505.56024 } }, "covered_min": 76, "window_min": 76, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:51 on Fri 8 Jul to 22:18 on Fri 8 Jul.", "fact": "1983-07-07T21:21:26Z → 1983-07-08T18:47:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:08 on the 7th, 18:52–20:08 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 0 of 76 minutes on the 7th and 76 of 76 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 7808 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Friday 8 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": "1983-07-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-08", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Friday 8 July. Trayodaśī runs from 00:51 on Fri 8 Jul to 22:18 on Fri 8 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-07-08", "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/1983/shivaratri?on=1983-07-08", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3286, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-07-08T22:17:51+03:30", "utc": "1983-07-08T18:47:51Z", "ms": 426538071039.1298 }, "end": { "local": "1983-07-09T19:13:59+03:30", "utc": "1983-07-09T15:43:59Z", "ms": 426613438825.506 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-08T22:17:51+03:30", "utc": "1983-07-08T18:47:51Z", "ms": 426538071039.1298 }, "end": { "local": "1983-07-09T19:13:59+03:30", "utc": "1983-07-09T15:43:59Z", "ms": 426613438825.506 } }, "kaala": "nishita", "days": [ { "local_date": "1983-07-08", "window": { "start": { "local": "1983-07-08T23:12:38+03:30", "utc": "1983-07-08T19:42:38Z", "ms": 426541357527.51733 }, "end": { "local": "1983-07-09T00:00:38+03:30", "utc": "1983-07-08T20:30:38Z", "ms": 426544237527.51733 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-07-09", "window": { "start": { "local": "1983-07-09T23:12:47+03:30", "utc": "1983-07-09T19:42:47Z", "ms": 426627767004.3616 }, "end": { "local": "1983-07-10T00:00:47+03:30", "utc": "1983-07-09T20:30:47Z", "ms": 426630647004.3616 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:18 on Fri 8 Jul to 19:14 on Sat 9 Jul.", "fact": "1983-07-08T18:47:51Z → 1983-07-09T15:43:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:13–00:01 on the 8th, 23:13–00:01 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 3286 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Friday 8 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": "1983-07-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-08", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Friday 8 July. Caturdaśī runs from 22:18 on Fri 8 Jul to 19:14 on Sat 9 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-07-08", "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/1983/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 601, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1983-07-11T12:10:47+03:30", "utc": "1983-07-11T08:40:47Z", "ms": 426760847328.4632 }, "end": { "local": "1983-07-12T08:30:43+03:30", "utc": "1983-07-12T05:00:43Z", "ms": 426834043127.4068 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-11T12:10:47+03:30", "utc": "1983-07-11T08:40:47Z", "ms": 426760847328.4632 }, "end": { "local": "1983-07-12T08:30:43+03:30", "utc": "1983-07-12T05:00:43Z", "ms": 426834043127.4068 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-07-11", "window": { "start": { "local": "1983-07-11T11:12:46+03:30", "utc": "1983-07-11T07:42:46Z", "ms": 426757366235.58966 }, "end": { "local": "1983-07-11T12:00:46+03:30", "utc": "1983-07-11T08:30:46Z", "ms": 426760246235.58966 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-07-12", "window": { "start": { "local": "1983-07-12T11:12:54+03:30", "utc": "1983-07-12T07:42:54Z", "ms": 426843773985.73047 }, "end": { "local": "1983-07-12T12:00:54+03:30", "utc": "1983-07-12T08:30:54Z", "ms": 426846653985.73047 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 12:11 on Mon 11 Jul to 08:31 on Tue 12 Jul.", "fact": "1983-07-11T08:40:47Z → 1983-07-12T05:00:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 11th, 11:13–12:01 on the 12th.", "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 11th and 0 of 48 on the 12th.", "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 601 s" }, { "step": "ruling", "text": "Rathayātrā, Mashhad, 1983: Tuesday 12 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": "1983-07-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-11", "confidence": "determinate" } ], "quote": "In Mashhad, Rathayātrā 1983 falls on Tuesday 12 July. Dvitīyā runs from 12:11 on Mon 11 Jul to 08:31 on Tue 12 Jul, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vinayaka-chaturthi?on=1983-07-13", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22497, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-07-13T04:58:04+03:30", "utc": "1983-07-13T01:28:04Z", "ms": 426907683911.3018 }, "end": { "local": "1983-07-14T01:42:14+03:30", "utc": "1983-07-13T22:12:14Z", "ms": 426982334262.96027 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-13T04:58:04+03:30", "utc": "1983-07-13T01:28:04Z", "ms": 426907683911.3018 }, "end": { "local": "1983-07-14T01:42:14+03:30", "utc": "1983-07-13T22:12:14Z", "ms": 426982334262.96027 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-07-13", "window": { "start": { "local": "1983-07-13T11:13:01+03:30", "utc": "1983-07-13T07:43:01Z", "ms": 426930181278.34094 }, "end": { "local": "1983-07-13T12:01:01+03:30", "utc": "1983-07-13T08:31:01Z", "ms": 426933061278.34094 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-07-14", "window": { "start": { "local": "1983-07-14T11:13:08+03:30", "utc": "1983-07-14T07:43:08Z", "ms": 427016588093.81525 }, "end": { "local": "1983-07-14T12:01:08+03:30", "utc": "1983-07-14T08:31:08Z", "ms": 427019468093.81525 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:58 on Wed 13 Jul to 01:42 on Thu 14 Jul.", "fact": "1983-07-13T01:28:04Z → 1983-07-13T22:12:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 13th, 11:13–12:01 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22497 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Wednesday 13 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": "1983-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-13", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Wednesday 13 July. Caturthī runs from 04:58 on Wed 13 Jul to 01:42 on Thu 14 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-07-13", "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/1983/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34254, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1983-07-14T01:42:14+03:30", "utc": "1983-07-13T22:12:14Z", "ms": 426982334262.96027 }, "end": { "local": "1983-07-14T22:51:50+03:30", "utc": "1983-07-14T19:21:50Z", "ms": 427058510242.0805 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-14T01:42:14+03:30", "utc": "1983-07-13T22:12:14Z", "ms": 426982334262.96027 }, "end": { "local": "1983-07-14T22:51:50+03:30", "utc": "1983-07-14T19:21:50Z", "ms": 427058510242.0805 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-07-14", "window": { "start": { "local": "1983-07-14T11:13:08+03:30", "utc": "1983-07-14T07:43:08Z", "ms": 427016588093.81525 }, "end": { "local": "1983-07-14T12:01:08+03:30", "utc": "1983-07-14T08:31:08Z", "ms": 427019468093.81525 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-07-15", "window": { "start": { "local": "1983-07-15T11:13:14+03:30", "utc": "1983-07-15T07:43:14Z", "ms": 427102994414.7893 }, "end": { "local": "1983-07-15T12:01:14+03:30", "utc": "1983-07-15T08:31:14Z", "ms": 427105874414.7893 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 01:42 on Thu 14 Jul to 22:52 on Thu 14 Jul.", "fact": "1983-07-13T22:12:14Z → 1983-07-14T19:21:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 14th, 11:13–12:01 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34254 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Mashhad, 1983: Thursday 14 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": "1983-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-14", "confidence": "determinate" } ], "quote": "In Mashhad, Skanda Pañcamī 1983 falls on Thursday 14 July. Pañcamī runs from 01:42 on Thu 14 Jul to 22:52 on Thu 14 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24803, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1983-07-15T20:34:10+03:30", "utc": "1983-07-15T17:04:10Z", "ms": 427136650255.9022 }, "end": { "local": "1983-07-16T18:54:44+03:30", "utc": "1983-07-16T15:24:44Z", "ms": 427217083600.2913 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-15T20:34:10+03:30", "utc": "1983-07-15T17:04:10Z", "ms": 427136650255.9022 }, "end": { "local": "1983-07-16T18:54:44+03:30", "utc": "1983-07-16T15:24:44Z", "ms": 427217083600.2913 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-07-15", "window": { "start": { "local": "1983-07-15T11:13:14+03:30", "utc": "1983-07-15T07:43:14Z", "ms": 427102994414.7893 }, "end": { "local": "1983-07-15T12:01:14+03:30", "utc": "1983-07-15T08:31:14Z", "ms": 427105874414.7893 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-07-16", "window": { "start": { "local": "1983-07-16T11:13:20+03:30", "utc": "1983-07-16T07:43:20Z", "ms": 427189400226.1697 }, "end": { "local": "1983-07-16T12:01:20+03:30", "utc": "1983-07-16T08:31:20Z", "ms": 427192280226.1697 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 20:34 on Fri 15 Jul to 18:55 on Sat 16 Jul.", "fact": "1983-07-15T17:04:10Z → 1983-07-16T15:24:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 15th, 11:13–12:01 on the 16th.", "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 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 24803 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Mashhad, 1983: Saturday 16 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": "1983-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-16", "confidence": "determinate" } ], "quote": "In Mashhad, Vivasvat Saptamī 1983 falls on Saturday 16 July. Saptamī runs from 20:34 on Fri 15 Jul to 18:55 on Sat 16 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-07-20", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33915, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-07-19T18:04:33+03:30", "utc": "1983-07-19T14:34:33Z", "ms": 427473272709.6069 }, "end": { "local": "1983-07-20T19:04:08+03:30", "utc": "1983-07-20T15:34:08Z", "ms": 427563247517.7855 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-19T18:04:33+03:30", "utc": "1983-07-19T14:34:33Z", "ms": 427473272709.6069 }, "end": { "local": "1983-07-20T19:04:08+03:30", "utc": "1983-07-20T15:34:08Z", "ms": 427563247517.7855 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-07-20", "window": { "start": { "local": "1983-07-20T04:28:40+03:30", "utc": "1983-07-20T00:58:40Z", "ms": 427510719868.07135 }, "end": { "local": "1983-07-20T04:28:40+03:30", "utc": "1983-07-20T00:58:40Z", "ms": 427510719868.07135 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-07-21", "window": { "start": { "local": "1983-07-21T04:29:23+03:30", "utc": "1983-07-21T00:59:23Z", "ms": 427597162988.3907 }, "end": { "local": "1983-07-21T04:29:23+03:30", "utc": "1983-07-21T00:59:23Z", "ms": 427597162988.3907 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:05 on Tue 19 Jul to 19:04 on Wed 20 Jul.", "fact": "1983-07-19T14:34:33Z → 1983-07-20T15:34:08Z" }, { "step": "kaala", "text": "Sunrise is at 04:29 on the 20th and 04:29 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 20th and is not on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33915 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Mashhad, 1983: Wednesday 20 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": "1983-07-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-20", "confidence": "determinate" } ], "quote": "In Mashhad, Hariśayanī Ekādaśī 1983 falls on Wednesday 20 July. Ekādaśī runs from 18:05 on Tue 19 Jul to 19:04 on Wed 20 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-07-20", "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/1983/pradosha-vrata?on=1983-07-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1783, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-07-21T20:33:35+03:30", "utc": "1983-07-21T17:03:35Z", "ms": 427655014989.45306 }, "end": { "local": "1983-07-22T22:26:26+03:30", "utc": "1983-07-22T18:56:26Z", "ms": 427748185572.82837 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-21T20:33:35+03:30", "utc": "1983-07-21T17:03:35Z", "ms": 427655014989.45306 }, "end": { "local": "1983-07-22T22:26:26+03:30", "utc": "1983-07-22T18:56:26Z", "ms": 427748185572.82837 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-07-21", "window": { "start": { "local": "1983-07-21T18:45:59+03:30", "utc": "1983-07-21T15:15:59Z", "ms": 427648559496.2629 }, "end": { "local": "1983-07-21T20:03:52+03:30", "utc": "1983-07-21T16:33:52Z", "ms": 427653232446.4082 } }, "covered_min": 0, "window_min": 78, "qualifies": false }, { "local_date": "1983-07-22", "window": { "start": { "local": "1983-07-22T18:45:21+03:30", "utc": "1983-07-22T15:15:21Z", "ms": 427734920935.1378 }, "end": { "local": "1983-07-22T20:03:25+03:30", "utc": "1983-07-22T16:33:25Z", "ms": 427739604909.0318 } }, "covered_min": 78, "window_min": 78, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:34 on Thu 21 Jul to 22:26 on Fri 22 Jul.", "fact": "1983-07-21T17:03:35Z → 1983-07-22T18:56:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:46–20:04 on the 21st, 18:45–20:03 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 78 minutes on the 21st and 78 of 78 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 1783 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Friday 22 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": "1983-07-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-22", "confidence": "boundary" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Friday 22 July. Trayodaśī runs from 20:34 on Thu 21 Jul to 22:26 on Fri 22 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-07-22", "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/1983/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5729, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-07-24T00:36:12+03:30", "utc": "1983-07-23T21:06:12Z", "ms": 427842371618.45123 }, "end": { "local": "1983-07-25T02:56:52+03:30", "utc": "1983-07-24T23:26:52Z", "ms": 427937211697.1647 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-24T00:36:12+03:30", "utc": "1983-07-23T21:06:12Z", "ms": 427842371618.45123 }, "end": { "local": "1983-07-25T02:56:52+03:30", "utc": "1983-07-24T23:26:52Z", "ms": 427937211697.1647 } }, "kaala": "udaya-3", "days": [ { "local_date": "1983-07-24", "window": { "start": { "local": "1983-07-24T04:31:35+03:30", "utc": "1983-07-24T01:01:35Z", "ms": 427856495309.84393 }, "end": { "local": "1983-07-24T07:22:04+03:30", "utc": "1983-07-24T03:52:04Z", "ms": 427866724041.3846 } }, "covered_min": 170, "window_min": 170, "qualifies": true }, { "local_date": "1983-07-25", "window": { "start": { "local": "1983-07-25T04:32:20+03:30", "utc": "1983-07-25T01:02:20Z", "ms": 427942940305.40515 }, "end": { "local": "1983-07-25T07:22:31+03:30", "utc": "1983-07-25T03:52:31Z", "ms": 427953151365.25214 } }, "covered_min": 0, "window_min": 170, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:36 on Sun 24 Jul to 02:57 on Mon 25 Jul.", "fact": "1983-07-23T21:06:12Z → 1983-07-24T23:26:52Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 04:32–07:22 on the 24th, 04:32–07:23 on the 25th.", "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 24th and 0 of 170 on the 25th.", "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 5729 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Mashhad, 1983: Sunday 24 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": "1983-07-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-24", "confidence": "determinate" } ], "quote": "In Mashhad, Vyāsa Pūjā 1983 falls on Sunday 24 July. Pūrṇimā runs from 00:36 on Sun 24 Jul to 02:57 on Mon 25 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29816, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-07-24T00:36:12+03:30", "utc": "1983-07-23T21:06:12Z", "ms": 427842371618.45123 }, "end": { "local": "1983-07-25T02:56:52+03:30", "utc": "1983-07-24T23:26:52Z", "ms": 427937211697.1647 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-24T00:36:12+03:30", "utc": "1983-07-23T21:06:12Z", "ms": 427842371618.45123 }, "end": { "local": "1983-07-25T02:56:52+03:30", "utc": "1983-07-24T23:26:52Z", "ms": 427937211697.1647 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-07-24", "window": { "start": { "local": "1983-07-24T11:13:47+03:30", "utc": "1983-07-24T07:43:47Z", "ms": 427880627138.69556 }, "end": { "local": "1983-07-24T12:01:47+03:30", "utc": "1983-07-24T08:31:47Z", "ms": 427883507138.69556 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-07-25", "window": { "start": { "local": "1983-07-25T11:13:48+03:30", "utc": "1983-07-25T07:43:48Z", "ms": 427967027955.0226 }, "end": { "local": "1983-07-25T12:01:48+03:30", "utc": "1983-07-25T08:31:48Z", "ms": 427969907955.0226 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:36 on Sun 24 Jul to 02:57 on Mon 25 Jul.", "fact": "1983-07-23T21:06:12Z → 1983-07-24T23:26:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 24th, 11:14–12:02 on the 25th.", "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 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29816 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Mashhad, 1983: Sunday 24 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": "1983-07-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-24", "confidence": "determinate" } ], "quote": "In Mashhad, Guru Pūrṇimā 1983 falls on Sunday 24 July. Pūrṇimā runs from 00:36 on Sun 24 Jul to 02:57 on Mon 25 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21091, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-07-24T00:36:12+03:30", "utc": "1983-07-23T21:06:12Z", "ms": 427842371618.45123 }, "end": { "local": "1983-07-25T02:56:52+03:30", "utc": "1983-07-24T23:26:52Z", "ms": 427937211697.1647 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-24T00:36:12+03:30", "utc": "1983-07-23T21:06:12Z", "ms": 427842371618.45123 }, "end": { "local": "1983-07-25T02:56:52+03:30", "utc": "1983-07-24T23:26:52Z", "ms": 427937211697.1647 } }, "kaala": "sayahna", "days": [ { "local_date": "1983-07-23", "window": { "start": { "local": "1983-07-23T15:53:55+03:30", "utc": "1983-07-23T12:23:55Z", "ms": 427811034749.2655 }, "end": { "local": "1983-07-23T18:44:41+03:30", "utc": "1983-07-23T15:14:41Z", "ms": 427821280751.7463 } }, "covered_min": 0, "window_min": 171, "qualifies": false }, { "local_date": "1983-07-24", "window": { "start": { "local": "1983-07-24T15:53:30+03:30", "utc": "1983-07-24T12:23:30Z", "ms": 427897410236.0066 }, "end": { "local": "1983-07-24T18:43:59+03:30", "utc": "1983-07-24T15:13:59Z", "ms": 427907638967.54724 } }, "covered_min": 170, "window_min": 170, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:36 on Sun 24 Jul to 02:57 on Mon 25 Jul.", "fact": "1983-07-23T21:06:12Z → 1983-07-24T23:26:52Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:54–18:45 on the 23rd, 15:54–18:44 on the 24th.", "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 171 minutes on the 23rd and 170 of 170 on the 24th.", "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 21091 s" }, { "step": "ruling", "text": "Kokilā Vrata, Mashhad, 1983: Sunday 24 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": "1983-07-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-24", "confidence": "determinate" } ], "quote": "In Mashhad, Kokilā Vrata 1983 falls on Sunday 24 July. Pūrṇimā runs from 00:36 on Sun 24 Jul to 02:57 on Mon 25 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16396, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-07-24T00:36:12+03:30", "utc": "1983-07-23T21:06:12Z", "ms": 427842371618.45123 }, "end": { "local": "1983-07-25T02:56:52+03:30", "utc": "1983-07-24T23:26:52Z", "ms": 427937211697.1647 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1983-07-24T00:36:12+03:30", "utc": "1983-07-23T21:06:12Z", "ms": 427842371618.45123 }, "end": { "local": "1983-07-25T02:56:52+03:30", "utc": "1983-07-24T23:26:52Z", "ms": 427937211697.1647 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-07-23", "window": { "start": { "local": "1983-07-23T18:44:41+03:30", "utc": "1983-07-23T15:14:41Z", "ms": 427821280751.7463 }, "end": { "local": "1983-07-23T20:02:56+03:30", "utc": "1983-07-23T16:32:56Z", "ms": 427825976026.1593 } }, "covered_min": 0, "window_min": 78, "qualifies": false }, { "local_date": "1983-07-24", "window": { "start": { "local": "1983-07-24T18:43:59+03:30", "utc": "1983-07-24T15:13:59Z", "ms": 427907638967.54724 }, "end": { "local": "1983-07-24T20:02:26+03:30", "utc": "1983-07-24T16:32:26Z", "ms": 427912345812.595 } }, "covered_min": 78, "window_min": 78, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:36 on Sun 24 Jul to 02:57 on Mon 25 Jul.", "fact": "1983-07-23T21:06:12Z → 1983-07-24T23:26:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:45–20:03 on the 23rd, 18:44–20:02 on the 24th.", "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 78 minutes on the 23rd and 78 of 78 on the 24th.", "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 16396 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Mashhad, 1983: Sunday 24 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": "1983-07-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-24", "confidence": "determinate" } ], "quote": "In Mashhad, Śiva Śayanotsava 1983 falls on Sunday 24 July. Pūrṇimā runs from 00:36 on Sun 24 Jul to 02:57 on Mon 25 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36071, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1983-07-26T05:22:51+03:30", "utc": "1983-07-26T01:52:51Z", "ms": 428032371447.7065 }, "end": { "local": "1983-07-27T07:48:45+03:30", "utc": "1983-07-27T04:18:45Z", "ms": 428127525149.3071 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-07-26T05:22:51+03:30", "utc": "1983-07-26T01:52:51Z", "ms": 428032371447.7065 }, "end": { "local": "1983-07-27T07:48:45+03:30", "utc": "1983-07-27T04:18:45Z", "ms": 428127525149.3071 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-07-25", "window": { "start": { "local": "1983-07-25T19:21:41+03:30", "utc": "1983-07-25T15:51:41Z", "ms": 427996300502.4088 }, "end": { "local": "1983-07-25T19:21:41+03:30", "utc": "1983-07-25T15:51:41Z", "ms": 427996300502.4088 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-07-26", "window": { "start": { "local": "1983-07-26T19:57:12+03:30", "utc": "1983-07-26T16:27:12Z", "ms": 428084832346.8753 }, "end": { "local": "1983-07-26T19:57:12+03:30", "utc": "1983-07-26T16:27:12Z", "ms": 428084832346.8753 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 05:23 on Tue 26 Jul to 07:49 on Wed 27 Jul.", "fact": "1983-07-26T01:52:51Z → 1983-07-27T04:18:45Z" }, { "step": "kaala", "text": "Moonrise is at 19:22 on the 25th and 19:57 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. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36071 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Mashhad, 1983: Tuesday 26 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": "1983-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-26", "confidence": "determinate" } ], "quote": "In Mashhad, Aśūnya Śayana Vrata (Āṣāḍha) 1983 falls on Tuesday 26 July. Dvitīyā runs from 05:23 on Tue 26 Jul to 07:49 on Wed 27 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sankashta-chaturthi?on=1983-07-28", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-07-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32845, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-07-28T10:08:49+03:30", "utc": "1983-07-28T06:38:49Z", "ms": 428222328621.0902 }, "end": { "local": "1983-07-29T12:16:37+03:30", "utc": "1983-07-29T08:46:37Z", "ms": 428316397020.4681 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-07-28T10:08:49+03:30", "utc": "1983-07-28T06:38:49Z", "ms": 428222328621.0902 }, "end": { "local": "1983-07-29T12:16:37+03:30", "utc": "1983-07-29T08:46:37Z", "ms": 428316397020.4681 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-07-28", "window": { "start": { "local": "1983-07-28T20:57:15+03:30", "utc": "1983-07-28T17:27:15Z", "ms": 428261235495.23376 }, "end": { "local": "1983-07-28T20:57:15+03:30", "utc": "1983-07-28T17:27:15Z", "ms": 428261235495.23376 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-07-29", "window": { "start": { "local": "1983-07-29T21:24:02+03:30", "utc": "1983-07-29T17:54:02Z", "ms": 428349242278.4591 }, "end": { "local": "1983-07-29T21:24:02+03:30", "utc": "1983-07-29T17:54:02Z", "ms": 428349242278.4591 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:09 on Thu 28 Jul to 12:17 on Fri 29 Jul.", "fact": "1983-07-28T06:38:49Z → 1983-07-29T08:46:37Z" }, { "step": "kaala", "text": "Moonrise is at 20:57 on the 28th and 21:24 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32845 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Thursday 28 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": "1983-07-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-07-28", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Thursday 28 July. Caturthī runs from 10:09 on Thu 28 Jul to 12:17 on Fri 29 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-07-28", "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/1983/ekadashi?on=1983-08-05", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27302, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-08-04T14:21:12+03:30", "utc": "1983-08-04T10:51:12Z", "ms": 428842272372.7695 }, "end": { "local": "1983-08-05T12:15:58+03:30", "utc": "1983-08-05T08:45:58Z", "ms": 428921157865.9705 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-08-04T14:21:12+03:30", "utc": "1983-08-04T10:51:12Z", "ms": 428842272372.7695 }, "end": { "local": "1983-08-05T12:15:58+03:30", "utc": "1983-08-05T08:45:58Z", "ms": 428921157865.9705 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-08-04", "window": { "start": { "local": "1983-08-04T04:40:08+03:30", "utc": "1983-08-04T01:10:08Z", "ms": 428807408007.954 }, "end": { "local": "1983-08-04T04:40:08+03:30", "utc": "1983-08-04T01:10:08Z", "ms": 428807408007.954 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-08-05", "window": { "start": { "local": "1983-08-05T04:40:56+03:30", "utc": "1983-08-05T01:10:56Z", "ms": 428893856034.4642 }, "end": { "local": "1983-08-05T04:40:56+03:30", "utc": "1983-08-05T01:10:56Z", "ms": 428893856034.4642 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:21 on Thu 4 Aug to 12:16 on Fri 5 Aug.", "fact": "1983-08-04T10:51:12Z → 1983-08-05T08:45:58Z" }, { "step": "kaala", "text": "Sunrise is at 04:40 on the 4th and 04:41 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 4th and is on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27302 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Mashhad, 1983: Friday 5 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": "1983-08-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-05", "confidence": "determinate" } ], "quote": "In Mashhad, Kāmikā Ekādaśī 1983 falls on Friday 5 August. Ekādaśī runs from 14:21 on Thu 4 Aug to 12:16 on Fri 5 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-08-05", "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/1983/pradosha-vrata?on=1983-08-06", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32425, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-08-06T09:32:15+03:30", "utc": "1983-08-06T06:02:15Z", "ms": 428997735472.06757 }, "end": { "local": "1983-08-07T06:17:01+03:30", "utc": "1983-08-07T02:47:01Z", "ms": 429072421232.3346 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-08-06T09:32:15+03:30", "utc": "1983-08-06T06:02:15Z", "ms": 428997735472.06757 }, "end": { "local": "1983-08-07T06:17:01+03:30", "utc": "1983-08-07T02:47:01Z", "ms": 429072421232.3346 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-08-06", "window": { "start": { "local": "1983-08-06T18:32:41+03:30", "utc": "1983-08-06T15:02:41Z", "ms": 429030160725.1529 }, "end": { "local": "1983-08-06T19:54:00+03:30", "utc": "1983-08-06T16:24:00Z", "ms": 429035039625.0089 } }, "covered_min": 81, "window_min": 81, "qualifies": true }, { "local_date": "1983-08-07", "window": { "start": { "local": "1983-08-07T18:31:39+03:30", "utc": "1983-08-07T15:01:39Z", "ms": 429116499014.8501 }, "end": { "local": "1983-08-07T19:53:13+03:30", "utc": "1983-08-07T16:23:13Z", "ms": 429121392591.3768 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:32 on Sat 6 Aug to 06:17 on Sun 7 Aug.", "fact": "1983-08-06T06:02:15Z → 1983-08-07T02:47:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:33–19:54 on the 6th, 18:32–19:53 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 81 of 81 minutes on the 6th and 0 of 82 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32425 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Saturday 6 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": "1983-08-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-06", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Saturday 6 August. Trayodaśī runs from 09:32 on Sat 6 Aug to 06:17 on Sun 7 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-08-06", "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/1983/shivaratri?on=1983-08-07", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9446, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-08-07T06:17:01+03:30", "utc": "1983-08-07T02:47:01Z", "ms": 429072421232.3346 }, "end": { "local": "1983-08-08T02:38:56+03:30", "utc": "1983-08-07T23:08:56Z", "ms": 429145736210.2618 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-08-07T06:17:01+03:30", "utc": "1983-08-07T02:47:01Z", "ms": 429072421232.3346 }, "end": { "local": "1983-08-08T02:38:56+03:30", "utc": "1983-08-07T23:08:56Z", "ms": 429145736210.2618 } }, "kaala": "nishita", "days": [ { "local_date": "1983-08-06", "window": { "start": { "local": "1983-08-06T23:13:37+03:30", "utc": "1983-08-06T19:43:37Z", "ms": 429047016599.61304 }, "end": { "local": "1983-08-07T00:01:37+03:30", "utc": "1983-08-06T20:31:37Z", "ms": 429049896599.61304 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-08-07", "window": { "start": { "local": "1983-08-07T23:13:30+03:30", "utc": "1983-08-07T19:43:30Z", "ms": 429133409926.8251 }, "end": { "local": "1983-08-08T00:01:30+03:30", "utc": "1983-08-07T20:31:30Z", "ms": 429136289926.8251 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:17 on Sun 7 Aug to 02:39 on Mon 8 Aug.", "fact": "1983-08-07T02:47:01Z → 1983-08-07T23:08:56Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:14–00:02 on the 6th, 23:13–00:01 on the 7th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9446 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Sunday 7 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": "1983-08-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-07", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Sunday 7 August. Caturdaśī runs from 06:17 on Sun 7 Aug to 02:39 on Mon 8 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-08-07", "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/1983/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 931, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1983-08-10T15:10:03+03:30", "utc": "1983-08-10T11:40:03Z", "ms": 429363603241.3513 }, "end": { "local": "1983-08-11T11:45:02+03:30", "utc": "1983-08-11T08:15:02Z", "ms": 429437702246.32336 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-08-10T15:10:03+03:30", "utc": "1983-08-10T11:40:03Z", "ms": 429363603241.3513 }, "end": { "local": "1983-08-11T11:45:02+03:30", "utc": "1983-08-11T08:15:02Z", "ms": 429437702246.32336 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-08-10", "window": { "start": { "local": "1983-08-10T11:12:42+03:30", "utc": "1983-08-10T07:42:42Z", "ms": 429349362124.7523 }, "end": { "local": "1983-08-10T12:00:42+03:30", "utc": "1983-08-10T08:30:42Z", "ms": 429352242124.7523 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-08-11", "window": { "start": { "local": "1983-08-11T11:12:33+03:30", "utc": "1983-08-11T07:42:33Z", "ms": 429435753093.948 }, "end": { "local": "1983-08-11T12:00:33+03:30", "utc": "1983-08-11T08:30:33Z", "ms": 429438633093.948 } }, "covered_min": 32, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 15:10 on Wed 10 Aug to 11:45 on Thu 11 Aug.", "fact": "1983-08-10T11:40:03Z → 1983-08-11T08:15:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 10th, 11:13–12:01 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 0 of 48 minutes on the 10th and 32 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 931 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Mashhad, 1983: Thursday 11 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": "1983-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-11", "confidence": "determinate" } ], "quote": "In Mashhad, Madhusravā Tṛtīyā (Hariyali Teej) 1983 falls on Thursday 11 August. Tṛtīyā runs from 15:10 on Wed 10 Aug to 11:45 on Thu 11 Aug and covers 32 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vinayaka-chaturthi?on=1983-08-11", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 931, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-08-11T11:45:02+03:30", "utc": "1983-08-11T08:15:02Z", "ms": 429437702246.32336 }, "end": { "local": "1983-08-12T08:49:46+03:30", "utc": "1983-08-12T05:19:46Z", "ms": 429513585524.12585 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-08-11T11:45:02+03:30", "utc": "1983-08-11T08:15:02Z", "ms": 429437702246.32336 }, "end": { "local": "1983-08-12T08:49:46+03:30", "utc": "1983-08-12T05:19:46Z", "ms": 429513585524.12585 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-08-11", "window": { "start": { "local": "1983-08-11T11:12:33+03:30", "utc": "1983-08-11T07:42:33Z", "ms": 429435753093.948 }, "end": { "local": "1983-08-11T12:00:33+03:30", "utc": "1983-08-11T08:30:33Z", "ms": 429438633093.948 } }, "covered_min": 16, "window_min": 48, "qualifies": true }, { "local_date": "1983-08-12", "window": { "start": { "local": "1983-08-12T11:12:23+03:30", "utc": "1983-08-12T07:42:23Z", "ms": 429522143486.9463 }, "end": { "local": "1983-08-12T12:00:23+03:30", "utc": "1983-08-12T08:30:23Z", "ms": 429525023486.9463 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:45 on Thu 11 Aug to 08:50 on Fri 12 Aug.", "fact": "1983-08-11T08:15:02Z → 1983-08-12T05:19:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 11th, 11:12–12:00 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 16 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 931 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Thursday 11 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": "1983-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-11", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Thursday 11 August. Caturthī runs from 11:45 on Thu 11 Aug to 08:50 on Fri 12 Aug and covers 16 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-08-11", "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/1983/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8558, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1983-08-12T08:49:46+03:30", "utc": "1983-08-12T05:19:46Z", "ms": 429513585524.12585 }, "end": { "local": "1983-08-13T06:33:04+03:30", "utc": "1983-08-13T03:03:04Z", "ms": 429591784175.3465 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-08-12T08:49:46+03:30", "utc": "1983-08-12T05:19:46Z", "ms": 429513585524.12585 }, "end": { "local": "1983-08-13T06:33:04+03:30", "utc": "1983-08-13T03:03:04Z", "ms": 429591784175.3465 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-08-12", "window": { "start": { "local": "1983-08-12T11:12:23+03:30", "utc": "1983-08-12T07:42:23Z", "ms": 429522143486.9463 }, "end": { "local": "1983-08-12T12:00:23+03:30", "utc": "1983-08-12T08:30:23Z", "ms": 429525023486.9463 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-08-13", "window": { "start": { "local": "1983-08-13T11:12:13+03:30", "utc": "1983-08-13T07:42:13Z", "ms": 429608533308.10675 }, "end": { "local": "1983-08-13T12:00:13+03:30", "utc": "1983-08-13T08:30:13Z", "ms": 429611413308.10675 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 08:50 on Fri 12 Aug to 06:33 on Sat 13 Aug.", "fact": "1983-08-12T05:19:46Z → 1983-08-13T03:03:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:12–12:00 on the 12th, 11:12–12:00 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: paraviddha → only-day · margin 8558 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Mashhad, 1983: Friday 12 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": "1983-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-12", "confidence": "determinate" } ], "quote": "In Mashhad, Nāga Pañcamī 1983 falls on Friday 12 August. Pañcamī runs from 08:50 on Fri 12 Aug to 06:33 on Sat 13 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-08-19", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7130, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-08-18T06:50:15+03:30", "utc": "1983-08-18T03:20:15Z", "ms": 430024814640.4862 }, "end": { "local": "1983-08-19T08:50:20+03:30", "utc": "1983-08-19T05:20:20Z", "ms": 430118420360.80035 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-08-18T06:50:15+03:30", "utc": "1983-08-18T03:20:15Z", "ms": 430024814640.4862 }, "end": { "local": "1983-08-19T08:50:20+03:30", "utc": "1983-08-19T05:20:20Z", "ms": 430118420360.80035 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-08-18", "window": { "start": { "local": "1983-08-18T04:51:25+03:30", "utc": "1983-08-18T01:21:25Z", "ms": 430017684828.4023 }, "end": { "local": "1983-08-18T04:51:25+03:30", "utc": "1983-08-18T01:21:25Z", "ms": 430017684828.4023 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-08-19", "window": { "start": { "local": "1983-08-19T04:52:13+03:30", "utc": "1983-08-19T01:22:13Z", "ms": 430104132949.7093 }, "end": { "local": "1983-08-19T04:52:13+03:30", "utc": "1983-08-19T01:22:13Z", "ms": 430104132949.7093 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:50 on Thu 18 Aug to 08:50 on Fri 19 Aug.", "fact": "1983-08-18T03:20:15Z → 1983-08-19T05:20:20Z" }, { "step": "kaala", "text": "Sunrise is at 04:51 on the 18th and 04:52 on the 19th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 18th and is on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7130 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Mashhad, 1983: Friday 19 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": "1983-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-19", "confidence": "determinate" } ], "quote": "In Mashhad, Putradā Ekādaśī 1983 falls on Friday 19 August. Ekādaśī runs from 06:50 on Thu 18 Aug to 08:50 on Fri 19 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-08-19", "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/1983/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-19", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 100, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1983-08-19T08:50:20+03:30", "utc": "1983-08-19T05:20:20Z", "ms": 430118420360.80035 }, "end": { "local": "1983-08-20T11:09:07+03:30", "utc": "1983-08-20T07:39:07Z", "ms": 430213147210.5383 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-08-19T08:50:20+03:30", "utc": "1983-08-19T05:20:20Z", "ms": 430118420360.80035 }, "end": { "local": "1983-08-20T11:09:07+03:30", "utc": "1983-08-20T07:39:07Z", "ms": 430213147210.5383 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-08-19", "window": { "start": { "local": "1983-08-19T11:11:01+03:30", "utc": "1983-08-19T07:41:01Z", "ms": 430126860685.0077 }, "end": { "local": "1983-08-19T11:59:01+03:30", "utc": "1983-08-19T08:29:01Z", "ms": 430129740685.0077 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-08-20", "window": { "start": { "local": "1983-08-20T11:10:47+03:30", "utc": "1983-08-20T07:40:47Z", "ms": 430213246759.7075 }, "end": { "local": "1983-08-20T11:58:47+03:30", "utc": "1983-08-20T08:28:47Z", "ms": 430216126759.7075 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 08:50 on Fri 19 Aug to 11:09 on Sat 20 Aug.", "fact": "1983-08-19T05:20:20Z → 1983-08-20T07:39:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:11–11:59 on the 19th, 11:11–11:59 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: purvaviddha → only-day · margin 100 s < 300 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Mashhad, 1983: Friday 19 August.", "fact": "confidence: boundary (margin)" } ], "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": "1983-08-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-19", "confidence": "determinate" } ], "quote": "In Mashhad, Dāmodara Dvādaśī 1983 falls on Friday 19 August. Dvādaśī runs from 08:50 on Fri 19 Aug to 11:09 on Sat 20 Aug and covers all of madhyāhna that midday. It is 1 min 40 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/pradosha-vrata?on=1983-08-20", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16701, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-08-20T11:09:07+03:30", "utc": "1983-08-20T07:39:07Z", "ms": 430213147210.5383 }, "end": { "local": "1983-08-21T13:36:55+03:30", "utc": "1983-08-21T10:06:55Z", "ms": 430308415038.91034 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-08-20T11:09:07+03:30", "utc": "1983-08-20T07:39:07Z", "ms": 430213147210.5383 }, "end": { "local": "1983-08-21T13:36:55+03:30", "utc": "1983-08-21T10:06:55Z", "ms": 430308415038.91034 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-08-20", "window": { "start": { "local": "1983-08-20T18:16:33+03:30", "utc": "1983-08-20T14:46:33Z", "ms": 430238792530.3654 }, "end": { "local": "1983-08-20T19:41:31+03:30", "utc": "1983-08-20T16:11:31Z", "ms": 430243890718.8346 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "1983-08-21", "window": { "start": { "local": "1983-08-21T18:15:16+03:30", "utc": "1983-08-21T14:45:16Z", "ms": 430325115754.96466 }, "end": { "local": "1983-08-21T19:40:31+03:30", "utc": "1983-08-21T16:10:31Z", "ms": 430330230562.7096 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:09 on Sat 20 Aug to 13:37 on Sun 21 Aug.", "fact": "1983-08-20T07:39:07Z → 1983-08-21T10:06:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:17–19:42 on the 20th, 18:15–19:41 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 85 of 85 minutes on the 20th and 0 of 85 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 16701 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Saturday 20 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": "1983-08-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-20", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Saturday 20 August. Trayodaśī runs from 11:09 on Sat 20 Aug to 13:37 on Sun 21 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-08-20", "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/1983/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1382, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-08-22T16:05:41+03:30", "utc": "1983-08-22T12:35:41Z", "ms": 430403740800.0254 }, "end": { "local": "1983-08-23T18:29:17+03:30", "utc": "1983-08-23T14:59:17Z", "ms": 430498756698.13367 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1983-08-23T05:18:26+03:30", "utc": "1983-08-23T01:48:26Z", "ms": 430451306282.7146 }, "end": { "local": "1983-08-23T18:29:17+03:30", "utc": "1983-08-23T14:59:17Z", "ms": 430498756698.13367 } }, "kaala": "day", "days": [ { "local_date": "1983-08-22", "window": { "start": { "local": "1983-08-22T04:54:37+03:30", "utc": "1983-08-22T01:24:37Z", "ms": 430363476813.05176 }, "end": { "local": "1983-08-23T04:55:25+03:30", "utc": "1983-08-23T01:25:25Z", "ms": 430449924596.683 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1983-08-23", "window": { "start": { "local": "1983-08-23T04:55:25+03:30", "utc": "1983-08-23T01:25:25Z", "ms": 430449924596.683 }, "end": { "local": "1983-08-24T04:56:12+03:30", "utc": "1983-08-24T01:26:12Z", "ms": 430536372296.09985 } }, "covered_min": 791, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:06 on Mon 22 Aug to 18:29 on Tue 23 Aug. Its second half begins at 05:18 on Tue 23 Aug.", "fact": "1983-08-22T12:35:41Z → 1983-08-23T14:59:17Z · second half from 1983-08-23T01:48:26Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 04:55 on the 22nd, and from 04:55 on the 23rd.", "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 22nd and 791 of 1441 on the 23rd.", "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 1382 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Mashhad, 1983: Tuesday 23 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": "1983-08-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-23", "confidence": "determinate" } ], "quote": "In Mashhad, Rakṣā Bandhana (Rakhi) 1983 falls on Tuesday 23 August. The second half of Pūrṇimā runs from 05:18 on Tue 23 Aug to 18:29 on Tue 23 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14843, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-08-22T16:05:41+03:30", "utc": "1983-08-22T12:35:41Z", "ms": 430403740800.0254 }, "end": { "local": "1983-08-23T18:29:17+03:30", "utc": "1983-08-23T14:59:17Z", "ms": 430498756698.13367 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1983-08-22T16:05:41+03:30", "utc": "1983-08-22T12:35:41Z", "ms": 430403740800.0254 }, "end": { "local": "1983-08-23T18:29:17+03:30", "utc": "1983-08-23T14:59:17Z", "ms": 430498756698.13367 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-08-22", "window": { "start": { "local": "1983-08-22T11:10:17+03:30", "utc": "1983-08-22T07:40:17Z", "ms": 430386017469.16846 }, "end": { "local": "1983-08-22T11:58:17+03:30", "utc": "1983-08-22T08:28:17Z", "ms": 430388897469.16846 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-08-23", "window": { "start": { "local": "1983-08-23T11:10:02+03:30", "utc": "1983-08-23T07:40:02Z", "ms": 430472402134.57654 }, "end": { "local": "1983-08-23T11:58:02+03:30", "utc": "1983-08-23T08:28:02Z", "ms": 430475282134.57654 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:06 on Mon 22 Aug to 18:29 on Tue 23 Aug.", "fact": "1983-08-22T12:35:41Z → 1983-08-23T14:59:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:10–11:58 on the 22nd, 11:10–11:58 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14843 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Mashhad, 1983: Tuesday 23 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": "1983-08-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-23", "confidence": "determinate" } ], "quote": "In Mashhad, Ṛṣi Tarpaṇa 1983 falls on Tuesday 23 August. Pūrṇimā runs from 16:06 on Mon 22 Aug to 18:29 on Tue 23 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6160, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1983-08-24T20:43:11+03:30", "utc": "1983-08-24T17:13:11Z", "ms": 430593191445.99756 }, "end": { "local": "1983-08-25T22:43:49+03:30", "utc": "1983-08-25T19:13:49Z", "ms": 430686828944.4108 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-08-24T20:43:11+03:30", "utc": "1983-08-24T17:13:11Z", "ms": 430593191445.99756 }, "end": { "local": "1983-08-25T22:43:49+03:30", "utc": "1983-08-25T19:13:49Z", "ms": 430686828944.4108 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-08-24", "window": { "start": { "local": "1983-08-24T19:00:31+03:30", "utc": "1983-08-24T15:30:31Z", "ms": 430587031409.1064 }, "end": { "local": "1983-08-24T19:00:31+03:30", "utc": "1983-08-24T15:30:31Z", "ms": 430587031409.1064 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-08-25", "window": { "start": { "local": "1983-08-25T19:27:42+03:30", "utc": "1983-08-25T15:57:42Z", "ms": 430675061730.61743 }, "end": { "local": "1983-08-25T19:27:42+03:30", "utc": "1983-08-25T15:57:42Z", "ms": 430675061730.61743 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 20:43 on Wed 24 Aug to 22:44 on Thu 25 Aug.", "fact": "1983-08-24T17:13:11Z → 1983-08-25T19:13:49Z" }, { "step": "kaala", "text": "Moonrise is at 19:01 on the 24th and 19:28 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 24th and is on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6160 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Mashhad, 1983: Thursday 25 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": "1983-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-25", "confidence": "determinate" } ], "quote": "In Mashhad, Aśūnya Śayana Vrata 1983 falls on Thursday 25 August. Dvitīyā runs from 20:43 on Wed 24 Aug to 22:44 on Thu 25 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38475, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1983-08-25T22:43:49+03:30", "utc": "1983-08-25T19:13:49Z", "ms": 430686828944.4108 }, "end": { "local": "1983-08-27T00:27:42+03:30", "utc": "1983-08-26T20:57:42Z", "ms": 430779461925.6496 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-08-25T22:43:49+03:30", "utc": "1983-08-25T19:13:49Z", "ms": 430686828944.4108 }, "end": { "local": "1983-08-27T00:27:42+03:30", "utc": "1983-08-26T20:57:42Z", "ms": 430779461925.6496 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-08-26", "window": { "start": { "local": "1983-08-26T11:09:14+03:30", "utc": "1983-08-26T07:39:14Z", "ms": 430731553569.03674 }, "end": { "local": "1983-08-26T11:57:14+03:30", "utc": "1983-08-26T08:27:14Z", "ms": 430734433569.03674 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-08-27", "window": { "start": { "local": "1983-08-27T11:08:57+03:30", "utc": "1983-08-27T07:38:57Z", "ms": 430817936583.4238 }, "end": { "local": "1983-08-27T11:56:57+03:30", "utc": "1983-08-27T08:26:57Z", "ms": 430820816583.4238 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 22:44 on Thu 25 Aug to 00:28 on Sat 27 Aug.", "fact": "1983-08-25T19:13:49Z → 1983-08-26T20:57:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 26th, 11:09–11:57 on the 27th.", "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 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 38475 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Mashhad, 1983: Friday 26 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": "1983-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-26", "confidence": "determinate" } ], "quote": "In Mashhad, Kajjalī Tṛtīyā (Kajari Teej) 1983 falls on Friday 26 August. Tṛtīyā runs from 22:44 on Thu 25 Aug to 00:28 on Sat 27 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22742, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-08-27T00:27:42+03:30", "utc": "1983-08-26T20:57:42Z", "ms": 430779461925.6496 }, "end": { "local": "1983-08-28T01:50:57+03:30", "utc": "1983-08-27T22:20:57Z", "ms": 430870856559.5163 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-08-27T00:27:42+03:30", "utc": "1983-08-26T20:57:42Z", "ms": 430779461925.6496 }, "end": { "local": "1983-08-28T01:50:57+03:30", "utc": "1983-08-27T22:20:57Z", "ms": 430870856559.5163 } }, "kaala": "sayahna", "days": [ { "local_date": "1983-08-26", "window": { "start": { "local": "1983-08-26T15:30:29+03:30", "utc": "1983-08-26T12:00:29Z", "ms": 430747229238.75226 }, "end": { "local": "1983-08-26T18:08:40+03:30", "utc": "1983-08-26T14:38:40Z", "ms": 430756719685.22925 } }, "covered_min": 0, "window_min": 158, "qualifies": false }, { "local_date": "1983-08-27", "window": { "start": { "local": "1983-08-27T15:29:34+03:30", "utc": "1983-08-27T11:59:34Z", "ms": 430833573582.8634 }, "end": { "local": "1983-08-27T18:07:18+03:30", "utc": "1983-08-27T14:37:18Z", "ms": 430843038249.15643 } }, "covered_min": 158, "window_min": 158, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:28 on Sat 27 Aug to 01:51 on Sun 28 Aug.", "fact": "1983-08-26T20:57:42Z → 1983-08-27T22:20:57Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:30–18:09 on the 26th, 15:30–18:07 on the 27th.", "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 26th and 158 of 158 on the 27th.", "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 22742 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Mashhad, 1983: Saturday 27 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": "1983-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-27", "confidence": "determinate" } ], "quote": "In Mashhad, Bahulā Caturthī 1983 falls on Saturday 27 August. Caturthī runs from 00:28 on Sat 27 Aug to 01:51 on Sun 28 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sankashta-chaturthi?on=1983-08-27", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16433, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-08-27T00:27:42+03:30", "utc": "1983-08-26T20:57:42Z", "ms": 430779461925.6496 }, "end": { "local": "1983-08-28T01:50:57+03:30", "utc": "1983-08-27T22:20:57Z", "ms": 430870856559.5163 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-08-27T00:27:42+03:30", "utc": "1983-08-26T20:57:42Z", "ms": 430779461925.6496 }, "end": { "local": "1983-08-28T01:50:57+03:30", "utc": "1983-08-27T22:20:57Z", "ms": 430870856559.5163 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-08-26", "window": { "start": { "local": "1983-08-26T19:53:48+03:30", "utc": "1983-08-26T16:23:48Z", "ms": 430763028441.42706 }, "end": { "local": "1983-08-26T19:53:48+03:30", "utc": "1983-08-26T16:23:48Z", "ms": 430763028441.42706 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-08-27", "window": { "start": { "local": "1983-08-27T20:19:57+03:30", "utc": "1983-08-27T16:49:57Z", "ms": 430850997404.3581 }, "end": { "local": "1983-08-27T20:19:57+03:30", "utc": "1983-08-27T16:49:57Z", "ms": 430850997404.3581 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:28 on Sat 27 Aug to 01:51 on Sun 28 Aug.", "fact": "1983-08-26T20:57:42Z → 1983-08-27T22:20:57Z" }, { "step": "kaala", "text": "Moonrise is at 19:54 on the 26th and 20:20 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 26th and is on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16433 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Saturday 27 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": "1983-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-27", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Saturday 27 August. Caturthī runs from 00:28 on Sat 27 Aug to 01:51 on Sun 28 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-08-27", "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/1983/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28269, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1983-08-29T02:49:00+03:30", "utc": "1983-08-28T23:19:00Z", "ms": 430960739764.90625 }, "end": { "local": "1983-08-30T03:16:54+03:30", "utc": "1983-08-29T23:46:54Z", "ms": 431048814406.4212 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-08-29T02:49:00+03:30", "utc": "1983-08-28T23:19:00Z", "ms": 430960739764.90625 }, "end": { "local": "1983-08-30T03:16:54+03:30", "utc": "1983-08-29T23:46:54Z", "ms": 431048814406.4212 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-08-29", "window": { "start": { "local": "1983-08-29T11:08:22+03:30", "utc": "1983-08-29T07:38:22Z", "ms": 430990701521.7151 }, "end": { "local": "1983-08-29T11:56:22+03:30", "utc": "1983-08-29T08:26:22Z", "ms": 430993581521.7151 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-08-30", "window": { "start": { "local": "1983-08-30T11:08:03+03:30", "utc": "1983-08-30T07:38:03Z", "ms": 431077083481.0494 }, "end": { "local": "1983-08-30T11:56:03+03:30", "utc": "1983-08-30T08:26:03Z", "ms": 431079963481.0494 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 02:49 on Mon 29 Aug to 03:17 on Tue 30 Aug.", "fact": "1983-08-28T23:19:00Z → 1983-08-29T23:46:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 29th, 11:08–11:56 on the 30th.", "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 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28269 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Mashhad, 1983: Monday 29 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": "1983-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-29", "confidence": "determinate" } ], "quote": "In Mashhad, Hala Ṣaṣṭhī 1983 falls on Monday 29 August. Ṣaṣṭhī runs from 02:49 on Mon 29 Aug to 03:17 on Tue 30 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28269, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1983-08-30T03:16:54+03:30", "utc": "1983-08-29T23:46:54Z", "ms": 431048814406.4212 }, "end": { "local": "1983-08-31T03:09:59+03:30", "utc": "1983-08-30T23:39:59Z", "ms": 431134798970.0406 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-08-30T03:16:54+03:30", "utc": "1983-08-29T23:46:54Z", "ms": 431048814406.4212 }, "end": { "local": "1983-08-31T03:09:59+03:30", "utc": "1983-08-30T23:39:59Z", "ms": 431134798970.0406 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-08-30", "window": { "start": { "local": "1983-08-30T11:08:03+03:30", "utc": "1983-08-30T07:38:03Z", "ms": 431077083481.0494 }, "end": { "local": "1983-08-30T11:56:03+03:30", "utc": "1983-08-30T08:26:03Z", "ms": 431079963481.0494 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-08-31", "window": { "start": { "local": "1983-08-31T11:07:45+03:30", "utc": "1983-08-31T07:37:45Z", "ms": 431163465123.96295 }, "end": { "local": "1983-08-31T11:55:45+03:30", "utc": "1983-08-31T08:25:45Z", "ms": 431166345123.96295 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 03:17 on Tue 30 Aug to 03:10 on Wed 31 Aug.", "fact": "1983-08-29T23:46:54Z → 1983-08-30T23:39:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:08–11:56 on the 30th, 11:08–11:56 on the 31st.", "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 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: purvaviddha → only-day · margin 28269 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Mashhad, 1983: Tuesday 30 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": "1983-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-30", "confidence": "determinate" } ], "quote": "In Mashhad, Śītalā Saptamī 1983 falls on Tuesday 30 August. Saptamī runs from 03:17 on Tue 30 Aug to 03:10 on Wed 31 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8911, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1983-08-31T03:09:59+03:30", "utc": "1983-08-30T23:39:59Z", "ms": 431134798970.0406 }, "end": { "local": "1983-09-01T02:24:40+03:30", "utc": "1983-08-31T22:54:40Z", "ms": 431218479920.1056 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-08-31T03:09:59+03:30", "utc": "1983-08-30T23:39:59Z", "ms": 431134798970.0406 }, "end": { "local": "1983-09-01T02:24:40+03:30", "utc": "1983-08-31T22:54:40Z", "ms": 431218479920.1056 } }, "kaala": "nishita", "days": [ { "local_date": "1983-08-30", "window": { "start": { "local": "1983-08-30T23:08:27+03:30", "utc": "1983-08-30T19:38:27Z", "ms": 431120307090.631 }, "end": { "local": "1983-08-30T23:56:27+03:30", "utc": "1983-08-30T20:26:27Z", "ms": 431123187090.631 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-08-31", "window": { "start": { "local": "1983-08-31T23:08:09+03:30", "utc": "1983-08-31T19:38:09Z", "ms": 431206688709.57764 }, "end": { "local": "1983-08-31T23:56:09+03:30", "utc": "1983-08-31T20:26:09Z", "ms": 431209568709.57764 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 03:10 on Wed 31 Aug to 02:25 on Thu 1 Sep.", "fact": "1983-08-30T23:39:59Z → 1983-08-31T22:54:40Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:08–23:56 on the 30th, 23:08–23:56 on the 31st.", "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 30th and 48 of 48 on the 31st.", "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 8911 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Mashhad, 1983: Wednesday 31 August.", "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": "1983-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-08-31", "confidence": "determinate" } ], "quote": "In Mashhad, Janmāṣṭamī 1983 falls on Wednesday 31 August. Aṣṭamī runs from 03:10 on Wed 31 Aug to 02:25 on Thu 1 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-09-03", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22152, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-09-02T22:54:54+03:30", "utc": "1983-09-02T19:24:54Z", "ms": 431378693526.0222 }, "end": { "local": "1983-09-03T20:14:49+03:30", "utc": "1983-09-03T16:44:49Z", "ms": 431455488832.2825 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-02T22:54:54+03:30", "utc": "1983-09-02T19:24:54Z", "ms": 431378693526.0222 }, "end": { "local": "1983-09-03T20:14:49+03:30", "utc": "1983-09-03T16:44:49Z", "ms": 431455488832.2825 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-09-03", "window": { "start": { "local": "1983-09-03T05:04:06+03:30", "utc": "1983-09-03T01:34:06Z", "ms": 431400845524.02167 }, "end": { "local": "1983-09-03T05:04:06+03:30", "utc": "1983-09-03T01:34:06Z", "ms": 431400845524.02167 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-09-04", "window": { "start": { "local": "1983-09-04T05:04:53+03:30", "utc": "1983-09-04T01:34:53Z", "ms": 431487292576.62866 }, "end": { "local": "1983-09-04T05:04:53+03:30", "utc": "1983-09-04T01:34:53Z", "ms": 431487292576.62866 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:55 on Fri 2 Sep to 20:15 on Sat 3 Sep.", "fact": "1983-09-02T19:24:54Z → 1983-09-03T16:44:49Z" }, { "step": "kaala", "text": "Sunrise is at 05:04 on the 3rd and 05:05 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22152 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Mashhad, 1983: Saturday 3 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": "1983-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-03", "confidence": "determinate" } ], "quote": "In Mashhad, Ajā Ekādaśī 1983 falls on Saturday 3 September. Ekādaśī runs from 22:55 on Fri 2 Sep to 20:15 on Sat 3 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-09-03", "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/1983/pradosha-vrata?on=1983-09-04", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3061, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-09-04T17:05:04+03:30", "utc": "1983-09-04T13:35:04Z", "ms": 431530503687.1932 }, "end": { "local": "1983-09-05T13:33:38+03:30", "utc": "1983-09-05T10:03:38Z", "ms": 431604217771.27826 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-04T17:05:04+03:30", "utc": "1983-09-04T13:35:04Z", "ms": 431530503687.1932 }, "end": { "local": "1983-09-05T13:33:38+03:30", "utc": "1983-09-05T10:03:38Z", "ms": 431604217771.27826 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-09-04", "window": { "start": { "local": "1983-09-04T17:56:05+03:30", "utc": "1983-09-04T14:26:05Z", "ms": 431533565157.5951 }, "end": { "local": "1983-09-04T19:25:22+03:30", "utc": "1983-09-04T15:55:22Z", "ms": 431538921749.23834 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "1983-09-05", "window": { "start": { "local": "1983-09-05T17:54:39+03:30", "utc": "1983-09-05T14:24:39Z", "ms": 431619878750.7567 }, "end": { "local": "1983-09-05T19:24:13+03:30", "utc": "1983-09-05T15:54:13Z", "ms": 431625253128.0131 } }, "covered_min": 0, "window_min": 90, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:05 on Sun 4 Sep to 13:34 on Mon 5 Sep.", "fact": "1983-09-04T13:35:04Z → 1983-09-05T10:03:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:56–19:25 on the 4th, 17:55–19:24 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 89 of 89 minutes on the 4th and 0 of 90 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3061 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Sunday 4 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": "1983-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-04", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Sunday 4 September. Trayodaśī runs from 17:05 on Sun 4 Sep to 13:34 on Mon 5 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-09-04", "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/1983/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15661, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-09-05T13:33:38+03:30", "utc": "1983-09-05T10:03:38Z", "ms": 431604217771.27826 }, "end": { "local": "1983-09-06T09:50:04+03:30", "utc": "1983-09-06T06:20:04Z", "ms": 431677203847.4173 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-05T13:33:38+03:30", "utc": "1983-09-05T10:03:38Z", "ms": 431604217771.27826 }, "end": { "local": "1983-09-06T09:50:04+03:30", "utc": "1983-09-06T06:20:04Z", "ms": 431677203847.4173 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-09-05", "window": { "start": { "local": "1983-09-05T17:54:39+03:30", "utc": "1983-09-05T14:24:39Z", "ms": 431619878750.7567 }, "end": { "local": "1983-09-05T19:24:13+03:30", "utc": "1983-09-05T15:54:13Z", "ms": 431625253128.0131 } }, "covered_min": 90, "window_min": 90, "qualifies": true }, { "local_date": "1983-09-06", "window": { "start": { "local": "1983-09-06T17:53:12+03:30", "utc": "1983-09-06T14:23:12Z", "ms": 431706191928.3288 }, "end": { "local": "1983-09-06T19:23:04+03:30", "utc": "1983-09-06T15:53:04Z", "ms": 431711584142.3459 } }, "covered_min": 0, "window_min": 90, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:34 on Mon 5 Sep to 09:50 on Tue 6 Sep.", "fact": "1983-09-05T10:03:38Z → 1983-09-06T06:20:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:55–19:24 on the 5th, 17:53–19:23 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 90 of 90 minutes on the 5th and 0 of 90 on the 6th.", "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 15661 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Mashhad, 1983: Monday 5 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-05", "confidence": "determinate" } ], "quote": "In Mashhad, Aghora Caturdaśī 1983 falls on Monday 5 September. Caturdaśī runs from 13:34 on Mon 5 Sep to 09:50 on Tue 6 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/shivaratri?on=1983-09-05", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34375, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-09-05T13:33:38+03:30", "utc": "1983-09-05T10:03:38Z", "ms": 431604217771.27826 }, "end": { "local": "1983-09-06T09:50:04+03:30", "utc": "1983-09-06T06:20:04Z", "ms": 431677203847.4173 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-05T13:33:38+03:30", "utc": "1983-09-05T10:03:38Z", "ms": 431604217771.27826 }, "end": { "local": "1983-09-06T09:50:04+03:30", "utc": "1983-09-06T06:20:04Z", "ms": 431677203847.4173 } }, "kaala": "nishita", "days": [ { "local_date": "1983-09-05", "window": { "start": { "local": "1983-09-05T23:06:33+03:30", "utc": "1983-09-05T19:36:33Z", "ms": 431638592665.46814 }, "end": { "local": "1983-09-05T23:54:33+03:30", "utc": "1983-09-05T20:24:33Z", "ms": 431641472665.46814 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-09-06", "window": { "start": { "local": "1983-09-06T23:06:13+03:30", "utc": "1983-09-06T19:36:13Z", "ms": 431724972730.89294 }, "end": { "local": "1983-09-06T23:54:13+03:30", "utc": "1983-09-06T20:24:13Z", "ms": 431727852730.89294 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:34 on Mon 5 Sep to 09:50 on Tue 6 Sep.", "fact": "1983-09-05T10:03:38Z → 1983-09-06T06:20:04Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:07–23:55 on the 5th, 23:06–23:54 on the 6th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34375 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Monday 5 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": "1983-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-05", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Monday 5 September. Caturdaśī runs from 13:34 on Mon 5 Sep to 09:50 on Tue 6 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-09-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1983/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18031, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1983-09-07T06:04:58+03:30", "utc": "1983-09-07T02:34:58Z", "ms": 431750097794.84454 }, "end": { "local": "1983-09-08T02:29:29+03:30", "utc": "1983-09-07T22:59:29Z", "ms": 431823569263.96436 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-07T06:04:58+03:30", "utc": "1983-09-07T02:34:58Z", "ms": 431750097794.84454 }, "end": { "local": "1983-09-08T02:29:29+03:30", "utc": "1983-09-07T22:59:29Z", "ms": 431823569263.96436 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-09-07", "window": { "start": { "local": "1983-09-07T11:05:29+03:30", "utc": "1983-09-07T07:35:29Z", "ms": 431768129124.1512 }, "end": { "local": "1983-09-07T11:53:29+03:30", "utc": "1983-09-07T08:23:29Z", "ms": 431771009124.1512 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-09-08", "window": { "start": { "local": "1983-09-08T11:05:09+03:30", "utc": "1983-09-08T07:35:09Z", "ms": 431854508795.44794 }, "end": { "local": "1983-09-08T11:53:09+03:30", "utc": "1983-09-08T08:23:09Z", "ms": 431857388795.44794 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 06:05 on Wed 7 Sep to 02:29 on Thu 8 Sep.", "fact": "1983-09-07T02:34:58Z → 1983-09-07T22:59:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 7th, 11:05–11:53 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 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 18031 s" }, { "step": "ruling", "text": "Rudra Vrata, Mashhad, 1983: Wednesday 7 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": "1983-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-07", "confidence": "determinate" } ], "quote": "In Mashhad, Rudra Vrata 1983 falls on Wednesday 7 September. Pratipadā runs from 06:05 on Wed 7 Sep to 02:29 on Thu 8 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31134, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1983-09-08T23:14:51+03:30", "utc": "1983-09-08T19:44:51Z", "ms": 431898290884.42316 }, "end": { "local": "1983-09-09T20:31:42+03:30", "utc": "1983-09-09T17:01:42Z", "ms": 431974902123.7895 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-08T23:14:51+03:30", "utc": "1983-09-08T19:44:51Z", "ms": 431898290884.42316 }, "end": { "local": "1983-09-09T20:31:42+03:30", "utc": "1983-09-09T17:01:42Z", "ms": 431974902123.7895 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-09-08", "window": { "start": { "local": "1983-09-08T11:05:09+03:30", "utc": "1983-09-08T07:35:09Z", "ms": 431854508795.44794 }, "end": { "local": "1983-09-08T11:53:09+03:30", "utc": "1983-09-08T08:23:09Z", "ms": 431857388795.44794 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-09-09", "window": { "start": { "local": "1983-09-09T11:04:48+03:30", "utc": "1983-09-09T07:34:48Z", "ms": 431940888281.7311 }, "end": { "local": "1983-09-09T11:52:48+03:30", "utc": "1983-09-09T08:22:48Z", "ms": 431943768281.7311 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 23:15 on Thu 8 Sep to 20:32 on Fri 9 Sep.", "fact": "1983-09-08T19:44:51Z → 1983-09-09T17:01:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 8th, 11:05–11:53 on the 9th.", "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 8th and 48 of 48 on the 9th.", "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 31134 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Mashhad, 1983: Friday 9 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": "1983-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-09", "confidence": "determinate" } ], "quote": "In Mashhad, Haritālikā Vrata (Hartalika Teej) 1983 falls on Friday 9 September. Tṛtīyā runs from 23:15 on Thu 8 Sep to 20:32 on Fri 9 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23816, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-09-09T20:31:42+03:30", "utc": "1983-09-09T17:01:42Z", "ms": 431974902123.7895 }, "end": { "local": "1983-09-10T18:29:24+03:30", "utc": "1983-09-10T14:59:24Z", "ms": 432053963907.0355 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-09T20:31:42+03:30", "utc": "1983-09-09T17:01:42Z", "ms": 431974902123.7895 }, "end": { "local": "1983-09-10T18:29:24+03:30", "utc": "1983-09-10T14:59:24Z", "ms": 432053963907.0355 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-09-09", "window": { "start": { "local": "1983-09-09T11:04:48+03:30", "utc": "1983-09-09T07:34:48Z", "ms": 431940888281.7311 }, "end": { "local": "1983-09-09T11:52:48+03:30", "utc": "1983-09-09T08:22:48Z", "ms": 431943768281.7311 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-09-10", "window": { "start": { "local": "1983-09-10T11:04:28+03:30", "utc": "1983-09-10T07:34:28Z", "ms": 432027267597.643 }, "end": { "local": "1983-09-10T11:52:28+03:30", "utc": "1983-09-10T08:22:28Z", "ms": 432030147597.643 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:32 on Fri 9 Sep to 18:29 on Sat 10 Sep.", "fact": "1983-09-09T17:01:42Z → 1983-09-10T14:59:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 9th, 11:04–11:52 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 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 23816 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Mashhad, 1983: Saturday 10 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": "1983-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-10", "confidence": "determinate" } ], "quote": "In Mashhad, Gaṇeśa Caturthī 1983 falls on Saturday 10 September. Caturthī runs from 20:32 on Fri 9 Sep to 18:29 on Sat 10 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19376, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1983-09-10T18:29:24+03:30", "utc": "1983-09-10T14:59:24Z", "ms": 432053963907.0355 }, "end": { "local": "1983-09-11T17:15:03+03:30", "utc": "1983-09-11T13:45:03Z", "ms": 432135902707.82214 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-10T18:29:24+03:30", "utc": "1983-09-10T14:59:24Z", "ms": 432053963907.0355 }, "end": { "local": "1983-09-11T17:15:03+03:30", "utc": "1983-09-11T13:45:03Z", "ms": 432135902707.82214 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-09-10", "window": { "start": { "local": "1983-09-10T11:04:28+03:30", "utc": "1983-09-10T07:34:28Z", "ms": 432027267597.643 }, "end": { "local": "1983-09-10T11:52:28+03:30", "utc": "1983-09-10T08:22:28Z", "ms": 432030147597.643 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-09-11", "window": { "start": { "local": "1983-09-11T11:04:07+03:30", "utc": "1983-09-11T07:34:07Z", "ms": 432113646759.0553 }, "end": { "local": "1983-09-11T11:52:07+03:30", "utc": "1983-09-11T08:22:07Z", "ms": 432116526759.0553 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 18:29 on Sat 10 Sep to 17:15 on Sun 11 Sep.", "fact": "1983-09-10T14:59:24Z → 1983-09-11T13:45:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 10th, 11:04–11:52 on the 11th.", "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 10th and 48 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: disputed → only-day · margin 19376 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Mashhad, 1983: Sunday 11 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": "1983-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-11", "confidence": "determinate" } ], "quote": "In Mashhad, Ṛṣi Pañcamī 1983 falls on Sunday 11 September. Pañcamī runs from 18:29 on Sat 10 Sep to 17:15 on Sun 11 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18043, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1983-09-11T17:15:03+03:30", "utc": "1983-09-11T13:45:03Z", "ms": 432135902707.82214 }, "end": { "local": "1983-09-12T16:52:29+03:30", "utc": "1983-09-12T13:22:29Z", "ms": 432220948744.0847 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-11T17:15:03+03:30", "utc": "1983-09-11T13:45:03Z", "ms": 432135902707.82214 }, "end": { "local": "1983-09-12T16:52:29+03:30", "utc": "1983-09-12T13:22:29Z", "ms": 432220948744.0847 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-09-11", "window": { "start": { "local": "1983-09-11T11:04:07+03:30", "utc": "1983-09-11T07:34:07Z", "ms": 432113646759.0553 }, "end": { "local": "1983-09-11T11:52:07+03:30", "utc": "1983-09-11T08:22:07Z", "ms": 432116526759.0553 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-09-12", "window": { "start": { "local": "1983-09-12T11:03:46+03:30", "utc": "1983-09-12T07:33:46Z", "ms": 432200025783.0376 }, "end": { "local": "1983-09-12T11:51:46+03:30", "utc": "1983-09-12T08:21:46Z", "ms": 432202905783.0376 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 17:15 on Sun 11 Sep to 16:52 on Mon 12 Sep.", "fact": "1983-09-11T13:45:03Z → 1983-09-12T13:22:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 11th, 11:04–11:52 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 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 18043 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Mashhad, 1983: Monday 12 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": "1983-09-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-12", "confidence": "determinate" } ], "quote": "In Mashhad, Sūrya Ṣaṣṭhī (Bhādrapada) 1983 falls on Monday 12 September. Ṣaṣṭhī runs from 17:15 on Sun 11 Sep to 16:52 on Mon 12 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18043, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1983-09-12T16:52:29+03:30", "utc": "1983-09-12T13:22:29Z", "ms": 432220948744.0847 }, "end": { "local": "1983-09-13T17:21:22+03:30", "utc": "1983-09-13T13:51:22Z", "ms": 432309081618.66455 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-12T16:52:29+03:30", "utc": "1983-09-12T13:22:29Z", "ms": 432220948744.0847 }, "end": { "local": "1983-09-13T17:21:22+03:30", "utc": "1983-09-13T13:51:22Z", "ms": 432309081618.66455 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-09-12", "window": { "start": { "local": "1983-09-12T11:03:46+03:30", "utc": "1983-09-12T07:33:46Z", "ms": 432200025783.0376 }, "end": { "local": "1983-09-12T11:51:46+03:30", "utc": "1983-09-12T08:21:46Z", "ms": 432202905783.0376 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-09-13", "window": { "start": { "local": "1983-09-13T11:03:25+03:30", "utc": "1983-09-13T07:33:25Z", "ms": 432286404687.81006 }, "end": { "local": "1983-09-13T11:51:25+03:30", "utc": "1983-09-13T08:21:25Z", "ms": 432289284687.81006 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 16:52 on Mon 12 Sep to 17:21 on Tue 13 Sep.", "fact": "1983-09-12T13:22:29Z → 1983-09-13T13:51:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 12th, 11:03–11:51 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 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 18043 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Mashhad, 1983: Tuesday 13 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": "1983-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-13", "confidence": "determinate" } ], "quote": "In Mashhad, Muktābharaṇa Vrata 1983 falls on Tuesday 13 September. Saptamī runs from 16:52 on Mon 12 Sep to 17:21 on Tue 13 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19797, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1983-09-13T17:21:22+03:30", "utc": "1983-09-13T13:51:22Z", "ms": 432309081618.66455 }, "end": { "local": "1983-09-14T18:36:45+03:30", "utc": "1983-09-14T15:06:45Z", "ms": 432400004537.82623 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-13T17:21:22+03:30", "utc": "1983-09-13T13:51:22Z", "ms": 432309081618.66455 }, "end": { "local": "1983-09-14T18:36:45+03:30", "utc": "1983-09-14T15:06:45Z", "ms": 432400004537.82623 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-09-13", "window": { "start": { "local": "1983-09-13T11:03:25+03:30", "utc": "1983-09-13T07:33:25Z", "ms": 432286404687.81006 }, "end": { "local": "1983-09-13T11:51:25+03:30", "utc": "1983-09-13T08:21:25Z", "ms": 432289284687.81006 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-09-14", "window": { "start": { "local": "1983-09-14T11:03:03+03:30", "utc": "1983-09-14T07:33:03Z", "ms": 432372783492.5326 }, "end": { "local": "1983-09-14T11:51:03+03:30", "utc": "1983-09-14T08:21:03Z", "ms": 432375663492.5326 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:21 on Tue 13 Sep to 18:37 on Wed 14 Sep.", "fact": "1983-09-13T13:51:22Z → 1983-09-14T15:06:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:03–11:51 on the 13th, 11:03–11:51 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 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: unstated → only-day · margin 19797 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Mashhad, 1983: Wednesday 14 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": "1983-09-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-14", "confidence": "determinate" } ], "quote": "In Mashhad, Rādhāṣṭamī 1983 falls on Wednesday 14 September. Aṣṭamī runs from 17:21 on Tue 13 Sep to 18:37 on Wed 14 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-09-17", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14276, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-09-16T22:47:30+03:30", "utc": "1983-09-16T19:17:30Z", "ms": 432587849633.0959 }, "end": { "local": "1983-09-18T01:17:53+03:30", "utc": "1983-09-17T21:47:53Z", "ms": 432683272820.3975 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-16T22:47:30+03:30", "utc": "1983-09-16T19:17:30Z", "ms": 432587849633.0959 }, "end": { "local": "1983-09-18T01:17:53+03:30", "utc": "1983-09-17T21:47:53Z", "ms": 432683272820.3975 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-09-17", "window": { "start": { "local": "1983-09-17T05:15:02+03:30", "utc": "1983-09-17T01:45:02Z", "ms": 432611102165.5944 }, "end": { "local": "1983-09-17T05:15:02+03:30", "utc": "1983-09-17T01:45:02Z", "ms": 432611102165.5944 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-09-18", "window": { "start": { "local": "1983-09-18T05:15:49+03:30", "utc": "1983-09-18T01:45:49Z", "ms": 432697549114.56976 }, "end": { "local": "1983-09-18T05:15:49+03:30", "utc": "1983-09-18T01:45:49Z", "ms": 432697549114.56976 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:47 on Fri 16 Sep to 01:18 on Sun 18 Sep.", "fact": "1983-09-16T19:17:30Z → 1983-09-17T21:47:53Z" }, { "step": "kaala", "text": "Sunrise is at 05:15 on the 17th and 05:16 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 17th and is not on the 18th.", "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 14276 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Mashhad, 1983: Saturday 17 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": "1983-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-17", "confidence": "determinate" } ], "quote": "In Mashhad, Parivartanī Ekādaśī 1983 falls on Saturday 17 September. Ekādaśī runs from 22:47 on Fri 16 Sep to 01:18 on Sun 18 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-09-17", "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/1983/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25950, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1983-09-18T01:17:53+03:30", "utc": "1983-09-17T21:47:53Z", "ms": 432683272820.3975 }, "end": { "local": "1983-09-19T03:48:47+03:30", "utc": "1983-09-19T00:18:47Z", "ms": 432778726850.19135 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-18T01:17:53+03:30", "utc": "1983-09-17T21:47:53Z", "ms": 432683272820.3975 }, "end": { "local": "1983-09-19T03:48:47+03:30", "utc": "1983-09-19T00:18:47Z", "ms": 432778726850.19135 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-09-18", "window": { "start": { "local": "1983-09-18T11:01:38+03:30", "utc": "1983-09-18T07:31:38Z", "ms": 432718298118.8468 }, "end": { "local": "1983-09-18T11:49:38+03:30", "utc": "1983-09-18T08:19:38Z", "ms": 432721178118.8468 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-09-19", "window": { "start": { "local": "1983-09-19T11:01:17+03:30", "utc": "1983-09-19T07:31:17Z", "ms": 432804676734.1858 }, "end": { "local": "1983-09-19T11:49:17+03:30", "utc": "1983-09-19T08:19:17Z", "ms": 432807556734.1858 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 01:18 on Sun 18 Sep to 03:49 on Mon 19 Sep.", "fact": "1983-09-17T21:47:53Z → 1983-09-19T00:18:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:02–11:50 on the 18th, 11:01–11:49 on the 19th.", "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 18th and 0 of 48 on the 19th.", "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 25950 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Mashhad, 1983: Sunday 18 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": "1983-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-18", "confidence": "determinate" } ], "quote": "In Mashhad, Vāmana Jayantī 1983 falls on Sunday 18 September. Dvādaśī runs from 01:18 on Sun 18 Sep to 03:49 on Mon 19 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/pradosha-vrata?on=1983-09-19", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31191, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-09-19T03:48:47+03:30", "utc": "1983-09-19T00:18:47Z", "ms": 432778726850.19135 }, "end": { "local": "1983-09-20T06:10:52+03:30", "utc": "1983-09-20T02:40:52Z", "ms": 432873651941.4936 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-19T03:48:47+03:30", "utc": "1983-09-19T00:18:47Z", "ms": 432778726850.19135 }, "end": { "local": "1983-09-20T06:10:52+03:30", "utc": "1983-09-20T02:40:52Z", "ms": 432873651941.4936 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-09-18", "window": { "start": { "local": "1983-09-18T17:35:27+03:30", "utc": "1983-09-18T14:05:27Z", "ms": 432741927123.12384 }, "end": { "local": "1983-09-18T19:08:56+03:30", "utc": "1983-09-18T15:38:56Z", "ms": 432747536323.46295 } }, "covered_min": 0, "window_min": 93, "qualifies": false }, { "local_date": "1983-09-19", "window": { "start": { "local": "1983-09-19T17:33:57+03:30", "utc": "1983-09-19T14:03:57Z", "ms": 432828237342.7046 }, "end": { "local": "1983-09-19T19:07:45+03:30", "utc": "1983-09-19T15:37:45Z", "ms": 432833864792.1155 } }, "covered_min": 94, "window_min": 94, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:49 on Mon 19 Sep to 06:11 on Tue 20 Sep.", "fact": "1983-09-19T00:18:47Z → 1983-09-20T02:40:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:35–19:09 on the 18th, 17:34–19:08 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 93 minutes on the 18th and 94 of 94 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 31191 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Monday 19 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": "1983-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-19", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Monday 19 September. Trayodaśī runs from 03:49 on Mon 19 Sep to 06:11 on Tue 20 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-09-19", "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/1983/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1987, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-09-20T06:10:52+03:30", "utc": "1983-09-20T02:40:52Z", "ms": 432873651941.4936 }, "end": { "local": "1983-09-21T08:17:50+03:30", "utc": "1983-09-21T04:47:50Z", "ms": 432967670475.08875 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1983-09-20T06:10:52+03:30", "utc": "1983-09-20T02:40:52Z", "ms": 432873651941.4936 }, "end": { "local": "1983-09-21T08:17:50+03:30", "utc": "1983-09-21T04:47:50Z", "ms": 432967670475.08875 } }, "kaala": "udaya-3", "days": [ { "local_date": "1983-09-20", "window": { "start": { "local": "1983-09-20T05:17:23+03:30", "utc": "1983-09-20T01:47:23Z", "ms": 432870443213.28613 }, "end": { "local": "1983-09-20T07:44:24+03:30", "utc": "1983-09-20T04:14:24Z", "ms": 432879264078.9226 } }, "covered_min": 94, "window_min": 147, "qualifies": false }, { "local_date": "1983-09-21", "window": { "start": { "local": "1983-09-21T05:18:10+03:30", "utc": "1983-09-21T01:48:10Z", "ms": 432956890392.475 }, "end": { "local": "1983-09-21T07:44:44+03:30", "utc": "1983-09-21T04:14:44Z", "ms": 432965683863.994 } }, "covered_min": 147, "window_min": 147, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:11 on Tue 20 Sep to 08:18 on Wed 21 Sep.", "fact": "1983-09-20T02:40:52Z → 1983-09-21T04:47:50Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:17–07:44 on the 20th, 05:18–07:45 on the 21st.", "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 94 of 147 minutes on the 20th and 147 of 147 on the 21st.", "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 1987 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Mashhad, 1983: Wednesday 21 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": "1983-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-21", "confidence": "determinate" } ], "quote": "In Mashhad, Ananta Caturdaśī 1983 falls on Wednesday 21 September. Caturdaśī runs from 06:11 on Tue 20 Sep to 08:18 on Wed 21 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sankashta-chaturthi?on=1983-09-25", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21201, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-09-25T13:26:13+03:30", "utc": "1983-09-25T09:56:13Z", "ms": 433331773087.7416 }, "end": { "local": "1983-09-26T13:48:24+03:30", "utc": "1983-09-26T10:18:24Z", "ms": 433419503559.66223 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-09-25T13:26:13+03:30", "utc": "1983-09-25T09:56:13Z", "ms": 433331773087.7416 }, "end": { "local": "1983-09-26T13:48:24+03:30", "utc": "1983-09-26T10:18:24Z", "ms": 433419503559.66223 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-09-25", "window": { "start": { "local": "1983-09-25T19:19:34+03:30", "utc": "1983-09-25T15:49:34Z", "ms": 433352973671.57947 }, "end": { "local": "1983-09-25T19:19:34+03:30", "utc": "1983-09-25T15:49:34Z", "ms": 433352973671.57947 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-09-26", "window": { "start": { "local": "1983-09-26T19:52:00+03:30", "utc": "1983-09-26T16:22:00Z", "ms": 433441319506.8475 }, "end": { "local": "1983-09-26T19:52:00+03:30", "utc": "1983-09-26T16:22:00Z", "ms": 433441319506.8475 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:26 on Sun 25 Sep to 13:48 on Mon 26 Sep.", "fact": "1983-09-25T09:56:13Z → 1983-09-26T10:18:24Z" }, { "step": "kaala", "text": "Moonrise is at 19:20 on the 25th and 19:52 on the 26th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 25th and is not on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21201 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Sunday 25 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-25", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Sunday 25 September. Caturthī runs from 13:26 on Sun 25 Sep to 13:48 on Mon 26 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-09-25", "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/1983/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24232, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1983-09-27T13:45:40+03:30", "utc": "1983-09-27T10:15:40Z", "ms": 433505739588.6756 }, "end": { "local": "1983-09-28T13:15:41+03:30", "utc": "1983-09-28T09:45:41Z", "ms": 433590341495.6047 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-09-27T13:45:40+03:30", "utc": "1983-09-27T10:15:40Z", "ms": 433505739588.6756 }, "end": { "local": "1983-09-28T13:15:41+03:30", "utc": "1983-09-28T09:45:41Z", "ms": 433590341495.6047 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-09-27", "window": { "start": { "local": "1983-09-27T20:29:31+03:30", "utc": "1983-09-27T16:59:31Z", "ms": 433529971204.1632 }, "end": { "local": "1983-09-27T20:29:31+03:30", "utc": "1983-09-27T16:59:31Z", "ms": 433529971204.1632 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-09-28", "window": { "start": { "local": "1983-09-28T21:13:51+03:30", "utc": "1983-09-28T17:43:51Z", "ms": 433619030732.13654 }, "end": { "local": "1983-09-28T21:13:51+03:30", "utc": "1983-09-28T17:43:51Z", "ms": 433619030732.13654 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 13:46 on Tue 27 Sep to 13:16 on Wed 28 Sep.", "fact": "1983-09-27T10:15:40Z → 1983-09-28T09:45:41Z" }, { "step": "kaala", "text": "Moonrise is at 20:30 on the 27th and 21:14 on the 28th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is on the 27th and is not on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 24232 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Mashhad, 1983: Tuesday 27 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chandra-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-27", "confidence": "determinate" } ], "quote": "In Mashhad, Candra Ṣaṣṭhī 1983 falls on Tuesday 27 September. Ṣaṣṭhī runs from 13:46 on Tue 27 Sep to 13:16 on Wed 28 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18162, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1983-09-29T12:16:21+03:30", "utc": "1983-09-29T08:46:21Z", "ms": 433673181140.45905 }, "end": { "local": "1983-09-30T10:46:27+03:30", "utc": "1983-09-30T07:16:27Z", "ms": 433754186656.73047 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-09-29T12:16:21+03:30", "utc": "1983-09-29T08:46:21Z", "ms": 433673181140.45905 }, "end": { "local": "1983-09-30T10:46:27+03:30", "utc": "1983-09-30T07:16:27Z", "ms": 433754186656.73047 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-09-29", "window": { "start": { "local": "1983-09-29T17:19:03+03:30", "utc": "1983-09-29T13:49:03Z", "ms": 433691343459.6967 }, "end": { "local": "1983-09-29T18:55:54+03:30", "utc": "1983-09-29T15:25:54Z", "ms": 433697153901.0714 } }, "covered_min": 97, "window_min": 97, "qualifies": true }, { "local_date": "1983-09-30", "window": { "start": { "local": "1983-09-30T17:17:35+03:30", "utc": "1983-09-30T13:47:35Z", "ms": 433777655137.49133 }, "end": { "local": "1983-09-30T18:54:44+03:30", "utc": "1983-09-30T15:24:44Z", "ms": 433783483883.83795 } }, "covered_min": 0, "window_min": 97, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:16 on Thu 29 Sep to 10:46 on Fri 30 Sep.", "fact": "1983-09-29T08:46:21Z → 1983-09-30T07:16:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:19–18:56 on the 29th, 17:18–18:55 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 97 of 97 minutes on the 29th and 0 of 97 on the 30th.", "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 18162 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Mashhad, 1983: Thursday 29 September.", "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": "1983-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-29", "confidence": "determinate" } ], "quote": "In Mashhad, Jitāṣṭamī (Jitiya) 1983 falls on Thursday 29 September. Aṣṭamī runs from 12:16 on Thu 29 Sep to 10:46 on Fri 30 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35397, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1983-09-29T12:16:21+03:30", "utc": "1983-09-29T08:46:21Z", "ms": 433673181140.45905 }, "end": { "local": "1983-09-30T10:46:27+03:30", "utc": "1983-09-30T07:16:27Z", "ms": 433754186656.73047 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-09-29T12:16:21+03:30", "utc": "1983-09-29T08:46:21Z", "ms": 433673181140.45905 }, "end": { "local": "1983-09-30T10:46:27+03:30", "utc": "1983-09-30T07:16:27Z", "ms": 433754186656.73047 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-09-29", "window": { "start": { "local": "1983-09-29T22:06:18+03:30", "utc": "1983-09-29T18:36:18Z", "ms": 433708578083.0034 }, "end": { "local": "1983-09-29T22:06:18+03:30", "utc": "1983-09-29T18:36:18Z", "ms": 433708578083.0034 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-09-30", "window": { "start": { "local": "1983-09-30T23:07:07+03:30", "utc": "1983-09-30T19:37:07Z", "ms": 433798626930.1836 }, "end": { "local": "1983-09-30T23:07:07+03:30", "utc": "1983-09-30T19:37:07Z", "ms": 433798626930.1836 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:16 on Thu 29 Sep to 10:46 on Fri 30 Sep.", "fact": "1983-09-29T08:46:21Z → 1983-09-30T07:16:27Z" }, { "step": "kaala", "text": "Moonrise is at 22:06 on the 29th and 23:07 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35397 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Mashhad, 1983: Thursday 29 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": "1983-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-09-29", "confidence": "determinate" } ], "quote": "In Mashhad, Mahālakṣmī Vrata Samāpana 1983 falls on Thursday 29 September. Aṣṭamī runs from 12:16 on Thu 29 Sep to 10:46 on Fri 30 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-10-02", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3095, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-10-02T06:18:35+03:30", "utc": "1983-10-02T02:48:35Z", "ms": 433910914998.21936 }, "end": { "local": "1983-10-03T03:27:39+03:30", "utc": "1983-10-02T23:57:39Z", "ms": 433987058679.3556 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-02T06:18:35+03:30", "utc": "1983-10-02T02:48:35Z", "ms": 433910914998.21936 }, "end": { "local": "1983-10-03T03:27:39+03:30", "utc": "1983-10-02T23:57:39Z", "ms": 433987058679.3556 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-10-02", "window": { "start": { "local": "1983-10-02T05:27:00+03:30", "utc": "1983-10-02T01:57:00Z", "ms": 433907819954.5979 }, "end": { "local": "1983-10-02T05:27:00+03:30", "utc": "1983-10-02T01:57:00Z", "ms": 433907819954.5979 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-10-03", "window": { "start": { "local": "1983-10-03T05:27:49+03:30", "utc": "1983-10-03T01:57:49Z", "ms": 433994269436.8656 }, "end": { "local": "1983-10-03T05:27:49+03:30", "utc": "1983-10-03T01:57:49Z", "ms": 433994269436.8656 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:19 on Sun 2 Oct to 03:28 on Mon 3 Oct.", "fact": "1983-10-02T02:48:35Z → 1983-10-02T23:57:39Z" }, { "step": "kaala", "text": "Sunrise is at 05:27 on the 2nd and 05:28 on the 3rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 2nd and is not on the 3rd.", "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 3095 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Mashhad, 1983: Sunday 2 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": "1983-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-02", "confidence": "determinate" } ], "quote": "In Mashhad, Indirā Ekādaśī 1983 falls on Sunday 2 October. Ekādaśī runs from 06:19 on Sun 2 Oct to 03:28 on Mon 3 Oct, and is current at sunrise on neither day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-10-02", "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/1983/pradosha-vrata?on=1983-10-04", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8046, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-10-04T00:20:07+03:30", "utc": "1983-10-03T20:50:07Z", "ms": 434062207222.1639 }, "end": { "local": "1983-10-04T21:04:13+03:30", "utc": "1983-10-04T17:34:13Z", "ms": 434136852908.2408 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-04T00:20:07+03:30", "utc": "1983-10-03T20:50:07Z", "ms": 434062207222.1639 }, "end": { "local": "1983-10-04T21:04:13+03:30", "utc": "1983-10-04T17:34:13Z", "ms": 434136852908.2408 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-10-03", "window": { "start": { "local": "1983-10-03T17:13:12+03:30", "utc": "1983-10-03T13:43:12Z", "ms": 434036592176.55756 }, "end": { "local": "1983-10-03T18:51:16+03:30", "utc": "1983-10-03T15:21:16Z", "ms": 434042475778.2168 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "1983-10-04", "window": { "start": { "local": "1983-10-04T17:11:45+03:30", "utc": "1983-10-04T13:41:45Z", "ms": 434122905286.01184 }, "end": { "local": "1983-10-04T18:50:07+03:30", "utc": "1983-10-04T15:20:07Z", "ms": 434128807143.4417 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:20 on Tue 4 Oct to 21:04 on Tue 4 Oct.", "fact": "1983-10-03T20:50:07Z → 1983-10-04T17:34:13Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:13–18:51 on the 3rd, 17:12–18:50 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 0 of 98 minutes on the 3rd and 98 of 98 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 8046 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Tuesday 4 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": "1983-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-04", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Tuesday 4 October. Trayodaśī runs from 00:20 on Tue 4 Oct to 21:04 on Tue 4 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-10-04", "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/1983/shivaratri?on=1983-10-04", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6744, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-10-04T21:04:13+03:30", "utc": "1983-10-04T17:34:13Z", "ms": 434136852908.2408 }, "end": { "local": "1983-10-05T17:49:21+03:30", "utc": "1983-10-05T14:19:21Z", "ms": 434211560622.9649 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-04T21:04:13+03:30", "utc": "1983-10-04T17:34:13Z", "ms": 434136852908.2408 }, "end": { "local": "1983-10-05T17:49:21+03:30", "utc": "1983-10-05T14:19:21Z", "ms": 434211560622.9649 } }, "kaala": "nishita", "days": [ { "local_date": "1983-10-04", "window": { "start": { "local": "1983-10-04T22:56:37+03:30", "utc": "1983-10-04T19:26:37Z", "ms": 434143597251.3739 }, "end": { "local": "1983-10-04T23:44:37+03:30", "utc": "1983-10-04T20:14:37Z", "ms": 434146477251.3739 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-10-05", "window": { "start": { "local": "1983-10-05T22:56:19+03:30", "utc": "1983-10-05T19:26:19Z", "ms": 434229979173.6492 }, "end": { "local": "1983-10-05T23:44:19+03:30", "utc": "1983-10-05T20:14:19Z", "ms": 434232859173.6492 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:04 on Tue 4 Oct to 17:49 on Wed 5 Oct.", "fact": "1983-10-04T17:34:13Z → 1983-10-05T14:19:21Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:57–23:45 on the 4th, 22:56–23:44 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 6744 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Tuesday 4 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": "1983-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-04", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Tuesday 4 October. Caturdaśī runs from 21:04 on Tue 4 Oct to 17:49 on Wed 5 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-10-04", "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/1983/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-06", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 211, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1983-10-05T17:49:21+03:30", "utc": "1983-10-05T14:19:21Z", "ms": 434211560622.9649 }, "end": { "local": "1983-10-06T14:45:39+03:30", "utc": "1983-10-06T11:15:39Z", "ms": 434286938748.07806 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-05T17:49:21+03:30", "utc": "1983-10-05T14:19:21Z", "ms": 434211560622.9649 }, "end": { "local": "1983-10-06T14:45:39+03:30", "utc": "1983-10-06T11:15:39Z", "ms": 434286938748.07806 } }, "kaala": "aparahna", "days": [ { "local_date": "1983-10-05", "window": { "start": { "local": "1983-10-05T12:29:59+03:30", "utc": "1983-10-05T08:59:59Z", "ms": 434192398980.24725 }, "end": { "local": "1983-10-05T14:50:09+03:30", "utc": "1983-10-05T11:20:09Z", "ms": 434200808901.41766 } }, "covered_min": 0, "window_min": 140, "qualifies": false }, { "local_date": "1983-10-06", "window": { "start": { "local": "1983-10-06T12:29:27+03:30", "utc": "1983-10-06T08:59:27Z", "ms": 434278767497.618 }, "end": { "local": "1983-10-06T14:49:10+03:30", "utc": "1983-10-06T11:19:10Z", "ms": 434287150155.2539 } }, "covered_min": 136, "window_min": 140, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 17:49 on Wed 5 Oct to 14:46 on Thu 6 Oct.", "fact": "1983-10-05T14:19:21Z → 1983-10-06T11:15:39Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 12:30–14:50 on the 5th, 12:29–14:49 on the 6th.", "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 140 minutes on the 5th and 136 of 140 on the 6th.", "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 211 s < 300 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Mashhad, 1983: Thursday 6 October.", "fact": "confidence: boundary (margin)" } ], "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": "1983-10-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-06", "confidence": "boundary" } ], "quote": "In Mashhad, Mahālaya Amāvāsyā 1983 falls on Thursday 6 October. Amāvasyā runs from 17:49 on Wed 5 Oct to 14:46 on Thu 6 Oct and covers 136 of 140 minutes of aparāhṇa that afternoon. It is 3 min 31 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1208, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1983-10-06T14:45:39+03:30", "utc": "1983-10-06T11:15:39Z", "ms": 434286938748.07806 }, "end": { "local": "1983-10-07T12:03:27+03:30", "utc": "1983-10-07T08:33:27Z", "ms": 434363606662.78345 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-06T14:45:39+03:30", "utc": "1983-10-06T11:15:39Z", "ms": 434286938748.07806 }, "end": { "local": "1983-10-07T12:03:27+03:30", "utc": "1983-10-07T08:33:27Z", "ms": 434363606662.78345 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-10-06", "window": { "start": { "local": "1983-10-06T10:55:36+03:30", "utc": "1983-10-06T07:25:36Z", "ms": 434273136168.80005 }, "end": { "local": "1983-10-06T11:43:36+03:30", "utc": "1983-10-06T08:13:36Z", "ms": 434276016168.80005 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-10-07", "window": { "start": { "local": "1983-10-07T10:55:19+03:30", "utc": "1983-10-07T07:25:19Z", "ms": 434359518700.1848 }, "end": { "local": "1983-10-07T11:43:19+03:30", "utc": "1983-10-07T08:13:19Z", "ms": 434362398700.1848 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 14:46 on Thu 6 Oct to 12:03 on Fri 7 Oct.", "fact": "1983-10-06T11:15:39Z → 1983-10-07T08:33:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:56–11:44 on the 6th, 10:55–11:43 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 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1208 s" }, { "step": "ruling", "text": "Navarātrārambha, Mashhad, 1983: Friday 7 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": "1983-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-07", "confidence": "determinate" } ], "quote": "In Mashhad, Navarātrārambha (Navratri) 1983 falls on Friday 7 October. Pratipadā runs from 14:46 on Thu 6 Oct to 12:03 on Fri 7 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vinayaka-chaturthi?on=1983-10-09", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9180, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-10-09T08:21:45+03:30", "utc": "1983-10-09T04:51:45Z", "ms": 434523104502.5022 }, "end": { "local": "1983-10-10T07:37:15+03:30", "utc": "1983-10-10T04:07:15Z", "ms": 434606835229.27966 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-09T08:21:45+03:30", "utc": "1983-10-09T04:51:45Z", "ms": 434523104502.5022 }, "end": { "local": "1983-10-10T07:37:15+03:30", "utc": "1983-10-10T04:07:15Z", "ms": 434606835229.27966 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-10-09", "window": { "start": { "local": "1983-10-09T10:54:45+03:30", "utc": "1983-10-09T07:24:45Z", "ms": 434532284971.29645 }, "end": { "local": "1983-10-09T11:42:45+03:30", "utc": "1983-10-09T08:12:45Z", "ms": 434535164971.29645 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-10-10", "window": { "start": { "local": "1983-10-10T10:54:29+03:30", "utc": "1983-10-10T07:24:29Z", "ms": 434618668742.9558 }, "end": { "local": "1983-10-10T11:42:29+03:30", "utc": "1983-10-10T08:12:29Z", "ms": 434621548742.9558 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:22 on Sun 9 Oct to 07:37 on Mon 10 Oct.", "fact": "1983-10-09T04:51:45Z → 1983-10-10T04:07:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:55–11:43 on the 9th, 10:54–11:42 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "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 9180 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Sunday 9 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": "1983-10-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-09", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Sunday 9 October. Caturthī runs from 08:22 on Sun 9 Oct to 07:37 on Mon 10 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-10-09", "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/1983/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8069, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1983-10-12T08:35:37+03:30", "utc": "1983-10-12T05:05:37Z", "ms": 434783136680.05066 }, "end": { "local": "1983-10-13T10:11:27+03:30", "utc": "1983-10-13T06:41:27Z", "ms": 434875286685.9585 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-12T08:35:37+03:30", "utc": "1983-10-12T05:05:37Z", "ms": 434783136680.05066 }, "end": { "local": "1983-10-13T10:11:27+03:30", "utc": "1983-10-13T06:41:27Z", "ms": 434875286685.9585 } }, "kaala": "udaya-1", "days": [ { "local_date": "1983-10-12", "window": { "start": { "local": "1983-10-12T05:35:27+03:30", "utc": "1983-10-12T02:05:27Z", "ms": 434772327464.50543 }, "end": { "local": "1983-10-12T06:21:07+03:30", "utc": "1983-10-12T02:51:07Z", "ms": 434775067488.2928 } }, "covered_min": 0, "window_min": 46, "qualifies": false }, { "local_date": "1983-10-13", "window": { "start": { "local": "1983-10-13T05:36:20+03:30", "utc": "1983-10-13T02:06:20Z", "ms": 434858779839.9723 }, "end": { "local": "1983-10-13T06:21:51+03:30", "utc": "1983-10-13T02:51:51Z", "ms": 434861510902.2035 } }, "covered_min": 46, "window_min": 46, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 08:36 on Wed 12 Oct to 10:11 on Thu 13 Oct.", "fact": "1983-10-12T05:05:37Z → 1983-10-13T06:41:27Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:35–06:21 on the 12th, 05:36–06:22 on the 13th.", "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 46 minutes on the 12th and 46 of 46 on the 13th.", "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 8069 s" }, { "step": "ruling", "text": "Durgā Saptamī, Mashhad, 1983: Thursday 13 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": "1983-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-13", "confidence": "determinate" } ], "quote": "In Mashhad, Durgā Saptamī 1983 falls on Thursday 13 October. Saptamī runs from 08:36 on Wed 12 Oct to 10:11 on Thu 13 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2280, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1983-10-13T10:11:27+03:30", "utc": "1983-10-13T06:41:27Z", "ms": 434875286685.9585 }, "end": { "local": "1983-10-14T12:19:28+03:30", "utc": "1983-10-14T08:49:28Z", "ms": 434969368374.752 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-13T10:11:27+03:30", "utc": "1983-10-13T06:41:27Z", "ms": 434875286685.9585 }, "end": { "local": "1983-10-14T12:19:28+03:30", "utc": "1983-10-14T08:49:28Z", "ms": 434969368374.752 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-10-13", "window": { "start": { "local": "1983-10-13T10:53:43+03:30", "utc": "1983-10-13T07:23:43Z", "ms": 434877822806.70624 }, "end": { "local": "1983-10-13T11:41:43+03:30", "utc": "1983-10-13T08:11:43Z", "ms": 434880702806.70624 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-10-14", "window": { "start": { "local": "1983-10-14T10:53:28+03:30", "utc": "1983-10-14T07:23:28Z", "ms": 434964208470.77356 }, "end": { "local": "1983-10-14T11:41:28+03:30", "utc": "1983-10-14T08:11:28Z", "ms": 434967088470.77356 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:11 on Thu 13 Oct to 12:19 on Fri 14 Oct.", "fact": "1983-10-13T06:41:27Z → 1983-10-14T08:49:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:54–11:42 on the 13th, 10:53–11:41 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 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 2280 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Mashhad, 1983: Friday 14 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": "1983-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-14", "confidence": "boundary" } ], "quote": "In Mashhad, Mahāṣṭamī (Durga Ashtami) 1983 falls on Friday 14 October. Aṣṭamī runs from 10:11 on Thu 13 Oct to 12:19 on Fri 14 Oct and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-15", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 623, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1983-10-15T14:46:22+03:30", "utc": "1983-10-15T11:16:22Z", "ms": 435064581909.4645 }, "end": { "local": "1983-10-16T17:17:51+03:30", "utc": "1983-10-16T13:47:51Z", "ms": 435160071389.24774 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "1983-10-15T14:46:22+03:30", "utc": "1983-10-15T11:16:22Z", "ms": 435064581909.4645 }, "end": { "local": "1983-10-16T05:49:22+03:30", "utc": "1983-10-16T02:19:22Z", "ms": 435118761842.6473 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "1983-10-15T02:49:15+03:30", "utc": "1983-10-14T23:19:15Z", "ms": 435021555345.83344 }, "end": { "local": "1983-10-16T05:49:22+03:30", "utc": "1983-10-16T02:19:22Z", "ms": 435118761842.6473 } } }, "kaala": "daytime", "days": [ { "local_date": "1983-10-15", "window": { "start": { "local": "1983-10-15T05:38:06+03:30", "utc": "1983-10-15T02:08:06Z", "ms": 435031685535.90826 }, "end": { "local": "1983-10-15T16:56:24+03:30", "utc": "1983-10-15T13:26:24Z", "ms": 435072383771.65845 } }, "covered_min": 130, "window_min": 678, "qualifies": true }, { "local_date": "1983-10-16", "window": { "start": { "local": "1983-10-16T05:38:59+03:30", "utc": "1983-10-16T02:08:59Z", "ms": 435118138867.04785 }, "end": { "local": "1983-10-16T16:55:04+03:30", "utc": "1983-10-16T13:25:04Z", "ms": 435158703882.15375 } }, "covered_min": 10, "window_min": 676, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Daśamī runs from 14:46 on Sat 15 Oct to 17:18 on Sun 16 Oct, and Śravaṇa from 02:49 on Sat 15 Oct to 05:49 on Sun 16 Oct. They are together from 14:46 on Sat 15 Oct to 05:49 on Sun 16 Oct.", "fact": "1983-10-15T11:16:22Z → 1983-10-16T02:19:22Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 05:38–16:56 on the 15th, 05:39–16:55 on the 16th.", "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 130 of 678 minutes on the 15th and 10 of 676 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 623 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Mashhad, 1983: Saturday 15 October.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1983-10-15", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-15", "confidence": "boundary" } ], "quote": "In Mashhad, Vijayā Daśamī (Dussehra) 1983 falls on Saturday 15 October. Daśamī runs from 14:46 on Sat 15 Oct to 17:18 on Sun 16 Oct and is with Śravaṇa in the day time that day, for 130 minutes. They are together in the day time on the next day too, for 10 minutes; the rule does not say which to take, and the day they share longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2280, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1983-10-14T12:19:28+03:30", "utc": "1983-10-14T08:49:28Z", "ms": 434969368374.752 }, "end": { "local": "1983-10-15T14:46:22+03:30", "utc": "1983-10-15T11:16:22Z", "ms": 435064581909.4645 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-14T12:19:28+03:30", "utc": "1983-10-14T08:49:28Z", "ms": 434969368374.752 }, "end": { "local": "1983-10-15T14:46:22+03:30", "utc": "1983-10-15T11:16:22Z", "ms": 435064581909.4645 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-10-14", "window": { "start": { "local": "1983-10-14T10:53:28+03:30", "utc": "1983-10-14T07:23:28Z", "ms": 434964208470.77356 }, "end": { "local": "1983-10-14T11:41:28+03:30", "utc": "1983-10-14T08:11:28Z", "ms": 434967088470.77356 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-10-15", "window": { "start": { "local": "1983-10-15T10:53:15+03:30", "utc": "1983-10-15T07:23:15Z", "ms": 435050594653.7833 }, "end": { "local": "1983-10-15T11:41:15+03:30", "utc": "1983-10-15T08:11:15Z", "ms": 435053474653.7833 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 12:19 on Fri 14 Oct to 14:46 on Sat 15 Oct.", "fact": "1983-10-14T08:49:28Z → 1983-10-15T11:16:22Z" }, { "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": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2280 s" }, { "step": "ruling", "text": "Mahānavamī, Mashhad, 1983: Saturday 15 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": "1983-10-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-14", "confidence": "determinate" } ], "quote": "In Mashhad, Mahānavamī 1983 falls on Saturday 15 October. Navamī runs from 12:19 on Fri 14 Oct to 14:46 on Sat 15 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-10-17", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35987, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-10-16T17:17:51+03:30", "utc": "1983-10-16T13:47:51Z", "ms": 435160071389.24774 }, "end": { "local": "1983-10-17T19:40:59+03:30", "utc": "1983-10-17T16:10:59Z", "ms": 435255059061.5471 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-16T17:17:51+03:30", "utc": "1983-10-16T13:47:51Z", "ms": 435160071389.24774 }, "end": { "local": "1983-10-17T19:40:59+03:30", "utc": "1983-10-17T16:10:59Z", "ms": 435255059061.5471 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-10-17", "window": { "start": { "local": "1983-10-17T05:39:53+03:30", "utc": "1983-10-17T02:09:53Z", "ms": 435204592527.39044 }, "end": { "local": "1983-10-17T05:39:53+03:30", "utc": "1983-10-17T02:09:53Z", "ms": 435204592527.39044 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-10-18", "window": { "start": { "local": "1983-10-18T05:40:47+03:30", "utc": "1983-10-18T02:10:47Z", "ms": 435291046522.1576 }, "end": { "local": "1983-10-18T05:40:47+03:30", "utc": "1983-10-18T02:10:47Z", "ms": 435291046522.1576 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:18 on Sun 16 Oct to 19:41 on Mon 17 Oct.", "fact": "1983-10-16T13:47:51Z → 1983-10-17T16:10:59Z" }, { "step": "kaala", "text": "Sunrise is at 05:40 on the 17th and 05:41 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 17th and is not on the 18th.", "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 35987 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Mashhad, 1983: Monday 17 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": "1983-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-17", "confidence": "determinate" } ], "quote": "In Mashhad, Pāśāṅkuśā Ekādaśī 1983 falls on Monday 17 October. Ekādaśī runs from 17:18 on Sun 16 Oct to 19:41 on Mon 17 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-10-17", "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/1983/pradosha-vrata?on=1983-10-19", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11445, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-10-18T21:45:45+03:30", "utc": "1983-10-18T18:15:45Z", "ms": 435348945218.64325 }, "end": { "local": "1983-10-19T23:25:51+03:30", "utc": "1983-10-19T19:55:51Z", "ms": 435441350647.78827 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1983-10-18T21:45:45+03:30", "utc": "1983-10-18T18:15:45Z", "ms": 435348945218.64325 }, "end": { "local": "1983-10-19T23:25:51+03:30", "utc": "1983-10-19T19:55:51Z", "ms": 435441350647.78827 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-10-18", "window": { "start": { "local": "1983-10-18T16:52:26+03:30", "utc": "1983-10-18T13:22:26Z", "ms": 435331346489.4078 }, "end": { "local": "1983-10-18T18:35:00+03:30", "utc": "1983-10-18T15:05:00Z", "ms": 435337500405.016 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1983-10-19", "window": { "start": { "local": "1983-10-19T16:51:09+03:30", "utc": "1983-10-19T13:21:09Z", "ms": 435417669052.4518 }, "end": { "local": "1983-10-19T18:34:01+03:30", "utc": "1983-10-19T15:04:01Z", "ms": 435423840583.5014 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:46 on Tue 18 Oct to 23:26 on Wed 19 Oct.", "fact": "1983-10-18T18:15:45Z → 1983-10-19T19:55:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:52–18:35 on the 18th, 16:51–18:34 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 103 minutes on the 18th and 103 of 103 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 11445 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Wednesday 19 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": "1983-10-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-19", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Wednesday 19 October. Trayodaśī runs from 21:46 on Tue 18 Oct to 23:26 on Wed 19 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-10-19", "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/1983/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18568, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-10-25T01:08:50+03:30", "utc": "1983-10-24T21:38:50Z", "ms": 435879530451.3784 }, "end": { "local": "1983-10-26T00:21:01+03:30", "utc": "1983-10-25T20:51:01Z", "ms": 435963060530.25256 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-10-25T01:08:50+03:30", "utc": "1983-10-24T21:38:50Z", "ms": 435879530451.3784 }, "end": { "local": "1983-10-26T00:21:01+03:30", "utc": "1983-10-25T20:51:01Z", "ms": 435963060530.25256 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-10-24", "window": { "start": { "local": "1983-10-24T18:29:07+03:30", "utc": "1983-10-24T14:59:07Z", "ms": 435855547199.34174 }, "end": { "local": "1983-10-24T18:29:07+03:30", "utc": "1983-10-24T14:59:07Z", "ms": 435855547199.34174 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-10-25", "window": { "start": { "local": "1983-10-25T19:11:33+03:30", "utc": "1983-10-25T15:41:33Z", "ms": 435944492502.54724 }, "end": { "local": "1983-10-25T19:11:33+03:30", "utc": "1983-10-25T15:41:33Z", "ms": 435944492502.54724 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:09 on Tue 25 Oct to 00:21 on Wed 26 Oct.", "fact": "1983-10-24T21:38:50Z → 1983-10-25T20:51:01Z" }, { "step": "kaala", "text": "Moonrise is at 18:29 on the 24th and 19:12 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 24th and is on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 18568 s" }, { "step": "ruling", "text": "Karaka Caturthī, Mashhad, 1983: Tuesday 25 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": "1983-10-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-25", "confidence": "determinate" } ], "quote": "In Mashhad, Karaka Caturthī (Karwa Chauth) 1983 falls on Tuesday 25 October. Caturthī runs from 01:09 on Tue 25 Oct to 00:21 on Wed 26 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sankashta-chaturthi?on=1983-10-25", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18568, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-10-25T01:08:50+03:30", "utc": "1983-10-24T21:38:50Z", "ms": 435879530451.3784 }, "end": { "local": "1983-10-26T00:21:01+03:30", "utc": "1983-10-25T20:51:01Z", "ms": 435963060530.25256 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-10-25T01:08:50+03:30", "utc": "1983-10-24T21:38:50Z", "ms": 435879530451.3784 }, "end": { "local": "1983-10-26T00:21:01+03:30", "utc": "1983-10-25T20:51:01Z", "ms": 435963060530.25256 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-10-24", "window": { "start": { "local": "1983-10-24T18:29:07+03:30", "utc": "1983-10-24T14:59:07Z", "ms": 435855547199.34174 }, "end": { "local": "1983-10-24T18:29:07+03:30", "utc": "1983-10-24T14:59:07Z", "ms": 435855547199.34174 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-10-25", "window": { "start": { "local": "1983-10-25T19:11:33+03:30", "utc": "1983-10-25T15:41:33Z", "ms": 435944492502.54724 }, "end": { "local": "1983-10-25T19:11:33+03:30", "utc": "1983-10-25T15:41:33Z", "ms": 435944492502.54724 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:09 on Tue 25 Oct to 00:21 on Wed 26 Oct.", "fact": "1983-10-24T21:38:50Z → 1983-10-25T20:51:01Z" }, { "step": "kaala", "text": "Moonrise is at 18:29 on the 24th and 19:12 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 24th and is on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18568 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Tuesday 25 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": "1983-10-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-25", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Tuesday 25 October. Caturthī runs from 01:09 on Tue 25 Oct to 00:21 on Wed 26 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-10-25", "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/1983/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7173, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1983-10-28T20:04:50+03:30", "utc": "1983-10-28T16:34:50Z", "ms": 436206890251.9052 }, "end": { "local": "1983-10-29T18:04:45+03:30", "utc": "1983-10-29T14:34:45Z", "ms": 436286084803.43445 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-10-28T20:04:50+03:30", "utc": "1983-10-28T16:34:50Z", "ms": 436206890251.9052 }, "end": { "local": "1983-10-29T18:04:45+03:30", "utc": "1983-10-29T14:34:45Z", "ms": 436286084803.43445 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-10-28", "window": { "start": { "local": "1983-10-28T22:04:23+03:30", "utc": "1983-10-28T18:34:23Z", "ms": 436214063248.6752 }, "end": { "local": "1983-10-28T22:04:23+03:30", "utc": "1983-10-28T18:34:23Z", "ms": 436214063248.6752 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-10-29", "window": { "start": { "local": "1983-10-29T23:13:32+03:30", "utc": "1983-10-29T19:43:32Z", "ms": 436304612083.87665 }, "end": { "local": "1983-10-29T23:13:32+03:30", "utc": "1983-10-29T19:43:32Z", "ms": 436304612083.87665 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 20:05 on Fri 28 Oct to 18:05 on Sat 29 Oct.", "fact": "1983-10-28T16:34:50Z → 1983-10-29T14:34:45Z" }, { "step": "kaala", "text": "Moonrise is at 22:04 on the 28th and 23:14 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī 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. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7173 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Mashhad, 1983: Friday 28 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": "1983-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-10-28", "confidence": "determinate" } ], "quote": "In Mashhad, Ahoyī Aṣṭamī 1983 falls on Friday 28 October. Aṣṭamī runs from 20:05 on Fri 28 Oct to 18:05 on Sat 29 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-11-01", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17887, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-10-31T13:24:22+03:30", "utc": "1983-10-31T09:54:22Z", "ms": 436442062017.9796 }, "end": { "local": "1983-11-01T10:52:06+03:30", "utc": "1983-11-01T07:22:06Z", "ms": 436519326159.92096 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-10-31T13:24:22+03:30", "utc": "1983-10-31T09:54:22Z", "ms": 436442062017.9796 }, "end": { "local": "1983-11-01T10:52:06+03:30", "utc": "1983-11-01T07:22:06Z", "ms": 436519326159.92096 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-10-31", "window": { "start": { "local": "1983-10-31T05:53:01+03:30", "utc": "1983-10-31T02:23:01Z", "ms": 436414980587.7661 }, "end": { "local": "1983-10-31T05:53:01+03:30", "utc": "1983-10-31T02:23:01Z", "ms": 436414980587.7661 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-11-01", "window": { "start": { "local": "1983-11-01T05:54:00+03:30", "utc": "1983-11-01T02:24:00Z", "ms": 436501439505.71375 }, "end": { "local": "1983-11-01T05:54:00+03:30", "utc": "1983-11-01T02:24:00Z", "ms": 436501439505.71375 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:24 on Mon 31 Oct to 10:52 on Tue 1 Nov.", "fact": "1983-10-31T09:54:22Z → 1983-11-01T07:22:06Z" }, { "step": "kaala", "text": "Sunrise is at 05:53 on the 31st and 05:54 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 31st and is on the 1st.", "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 17887 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Mashhad, 1983: Tuesday 1 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": "1983-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-01", "confidence": "determinate" } ], "quote": "In Mashhad, Ramā Ekādaśī 1983 falls on Tuesday 1 November. Ekādaśī runs from 13:24 on Mon 31 Oct to 10:52 on Tue 1 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-11-01", "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/1983/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20629, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1983-11-01T10:52:06+03:30", "utc": "1983-11-01T07:22:06Z", "ms": 436519326159.92096 }, "end": { "local": "1983-11-02T08:19:19+03:30", "utc": "1983-11-02T04:49:19Z", "ms": 436596558680.7006 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-01T10:52:06+03:30", "utc": "1983-11-01T07:22:06Z", "ms": 436519326159.92096 }, "end": { "local": "1983-11-02T08:19:19+03:30", "utc": "1983-11-02T04:49:19Z", "ms": 436596558680.7006 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-11-01", "window": { "start": { "local": "1983-11-01T16:35:55+03:30", "utc": "1983-11-01T13:05:55Z", "ms": 436539955226.77844 }, "end": { "local": "1983-11-01T18:22:28+03:30", "utc": "1983-11-01T14:52:28Z", "ms": 436546347694.2884 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1983-11-02", "window": { "start": { "local": "1983-11-02T16:34:53+03:30", "utc": "1983-11-02T13:04:53Z", "ms": 436626293253.2542 }, "end": { "local": "1983-11-02T18:21:42+03:30", "utc": "1983-11-02T14:51:42Z", "ms": 436632701919.7768 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 10:52 on Tue 1 Nov to 08:19 on Wed 2 Nov.", "fact": "1983-11-01T07:22:06Z → 1983-11-02T04:49:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:36–18:22 on the 1st, 16:35–18:22 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 107 of 107 minutes on the 1st and 0 of 107 on the 2nd.", "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 20629 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Mashhad, 1983: Tuesday 1 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": "1983-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-01", "confidence": "determinate" } ], "quote": "In Mashhad, Govatsa Dvādaśī (Vasu Baras) 1983 falls on Tuesday 1 November. Dvādaśī runs from 10:52 on Tue 1 Nov to 08:19 on Wed 2 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29735, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-11-02T08:19:19+03:30", "utc": "1983-11-02T04:49:19Z", "ms": 436596558680.7006 }, "end": { "local": "1983-11-03T05:53:01+03:30", "utc": "1983-11-03T02:23:01Z", "ms": 436674180888.4357 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-02T08:19:19+03:30", "utc": "1983-11-02T04:49:19Z", "ms": 436596558680.7006 }, "end": { "local": "1983-11-03T05:53:01+03:30", "utc": "1983-11-03T02:23:01Z", "ms": 436674180888.4357 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-11-02", "window": { "start": { "local": "1983-11-02T16:34:53+03:30", "utc": "1983-11-02T13:04:53Z", "ms": 436626293253.2542 }, "end": { "local": "1983-11-02T18:21:42+03:30", "utc": "1983-11-02T14:51:42Z", "ms": 436632701919.7768 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1983-11-03", "window": { "start": { "local": "1983-11-03T16:33:53+03:30", "utc": "1983-11-03T13:03:53Z", "ms": 436712632627.1923 }, "end": { "local": "1983-11-03T18:20:57+03:30", "utc": "1983-11-03T14:50:57Z", "ms": 436719057349.33185 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:19 on Wed 2 Nov to 05:53 on Thu 3 Nov.", "fact": "1983-11-02T04:49:19Z → 1983-11-03T02:23:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:35–18:22 on the 2nd, 16:34–18:21 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 107 of 107 minutes on the 2nd and 0 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: unstated → only-day · margin 29735 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Mashhad, 1983: Wednesday 2 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": "1983-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-02", "confidence": "determinate" } ], "quote": "In Mashhad, Yama Dīpadāna 1983 falls on Wednesday 2 November. Trayodaśī runs from 08:19 on Wed 2 Nov to 05:53 on Thu 3 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/pradosha-vrata?on=1983-11-02", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29735, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-11-02T08:19:19+03:30", "utc": "1983-11-02T04:49:19Z", "ms": 436596558680.7006 }, "end": { "local": "1983-11-03T05:53:01+03:30", "utc": "1983-11-03T02:23:01Z", "ms": 436674180888.4357 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-02T08:19:19+03:30", "utc": "1983-11-02T04:49:19Z", "ms": 436596558680.7006 }, "end": { "local": "1983-11-03T05:53:01+03:30", "utc": "1983-11-03T02:23:01Z", "ms": 436674180888.4357 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-11-02", "window": { "start": { "local": "1983-11-02T16:34:53+03:30", "utc": "1983-11-02T13:04:53Z", "ms": 436626293253.2542 }, "end": { "local": "1983-11-02T18:21:42+03:30", "utc": "1983-11-02T14:51:42Z", "ms": 436632701919.7768 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1983-11-03", "window": { "start": { "local": "1983-11-03T16:33:53+03:30", "utc": "1983-11-03T13:03:53Z", "ms": 436712632627.1923 }, "end": { "local": "1983-11-03T18:20:57+03:30", "utc": "1983-11-03T14:50:57Z", "ms": 436719057349.33185 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:19 on Wed 2 Nov to 05:53 on Thu 3 Nov.", "fact": "1983-11-02T04:49:19Z → 1983-11-03T02:23:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:35–18:22 on the 2nd, 16:34–18:21 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 107 of 107 minutes on the 2nd and 0 of 107 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 29735 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Wednesday 2 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": "1983-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-02", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Wednesday 2 November. Trayodaśī runs from 08:19 on Wed 2 Nov to 05:53 on Thu 3 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-11-02", "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/1983/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-03", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 177, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-11-03T05:53:01+03:30", "utc": "1983-11-03T02:23:01Z", "ms": 436674180888.4357 }, "end": { "local": "1983-11-04T03:40:57+03:30", "utc": "1983-11-04T00:10:57Z", "ms": 436752657083.8182 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-03T05:53:01+03:30", "utc": "1983-11-03T02:23:01Z", "ms": 436674180888.4357 }, "end": { "local": "1983-11-04T03:40:57+03:30", "utc": "1983-11-04T00:10:57Z", "ms": 436752657083.8182 } }, "kaala": "arunodaya", "days": [ { "local_date": "1983-11-03", "window": { "start": { "local": "1983-11-03T04:09:10+03:30", "utc": "1983-11-03T00:39:10Z", "ms": 436667949585.65094 }, "end": { "local": "1983-11-03T05:55:58+03:30", "utc": "1983-11-03T02:25:58Z", "ms": 436674358252.1735 } }, "covered_min": 3, "window_min": 107, "qualifies": true }, { "local_date": "1983-11-04", "window": { "start": { "local": "1983-11-04T04:09:53+03:30", "utc": "1983-11-04T00:39:53Z", "ms": 436754393321.09906 }, "end": { "local": "1983-11-04T05:56:58+03:30", "utc": "1983-11-04T02:26:58Z", "ms": 436760818043.2386 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:53 on Thu 3 Nov to 03:41 on Fri 4 Nov.", "fact": "1983-11-03T02:23:01Z → 1983-11-04T00:10:57Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:09–05:56 on the 3rd, 04:10–05:57 on the 4th.", "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 3 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 dawn qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 177 s < 300 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Mashhad, 1983: Thursday 3 November.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-03", "confidence": "boundary" } ], "quote": "In Mashhad, Naraka Caturdaśī (Choti Diwali) 1983 falls on Thursday 3 November. Caturdaśī runs from 05:53 on Thu 3 Nov to 03:41 on Fri 4 Nov and covers 3 of 107 minutes of aruṇodaya that dawn. It is 2 min 57 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/shivaratri?on=1983-11-03", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14492, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-11-03T05:53:01+03:30", "utc": "1983-11-03T02:23:01Z", "ms": 436674180888.4357 }, "end": { "local": "1983-11-04T03:40:57+03:30", "utc": "1983-11-04T00:10:57Z", "ms": 436752657083.8182 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-03T05:53:01+03:30", "utc": "1983-11-03T02:23:01Z", "ms": 436674180888.4357 }, "end": { "local": "1983-11-04T03:40:57+03:30", "utc": "1983-11-04T00:10:57Z", "ms": 436752657083.8182 } }, "kaala": "nishita", "days": [ { "local_date": "1983-11-02", "window": { "start": { "local": "1983-11-02T22:51:26+03:30", "utc": "1983-11-02T19:21:26Z", "ms": 436648885752.71387 }, "end": { "local": "1983-11-02T23:39:26+03:30", "utc": "1983-11-02T20:09:26Z", "ms": 436651765752.71387 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-11-03", "window": { "start": { "local": "1983-11-03T22:51:25+03:30", "utc": "1983-11-03T19:21:25Z", "ms": 436735285335.21545 }, "end": { "local": "1983-11-03T23:39:25+03:30", "utc": "1983-11-03T20:09:25Z", "ms": 436738165335.21545 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:53 on Thu 3 Nov to 03:41 on Fri 4 Nov.", "fact": "1983-11-03T02:23:01Z → 1983-11-04T00:10:57Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:51–23:39 on the 2nd, 22:51–23:39 on the 3rd.", "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 2nd and 48 of 48 on the 3rd.", "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 14492 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Thursday 3 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": "1983-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-03", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Thursday 3 November. Caturdaśī runs from 05:53 on Thu 3 Nov to 03:41 on Fri 4 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-11-03", "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/1983/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27053, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1983-11-04T03:40:57+03:30", "utc": "1983-11-04T00:10:57Z", "ms": 436752657083.8182 }, "end": { "local": "1983-11-05T01:51:07+03:30", "utc": "1983-11-04T22:21:07Z", "ms": 436832467048.85187 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-04T03:40:57+03:30", "utc": "1983-11-04T00:10:57Z", "ms": 436752657083.8182 }, "end": { "local": "1983-11-05T01:51:07+03:30", "utc": "1983-11-04T22:21:07Z", "ms": 436832467048.85187 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-11-03", "window": { "start": { "local": "1983-11-03T16:33:53+03:30", "utc": "1983-11-03T13:03:53Z", "ms": 436712632627.1923 }, "end": { "local": "1983-11-03T18:20:57+03:30", "utc": "1983-11-03T14:50:57Z", "ms": 436719057349.33185 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1983-11-04", "window": { "start": { "local": "1983-11-04T16:32:53+03:30", "utc": "1983-11-04T13:02:53Z", "ms": 436798973377.13934 }, "end": { "local": "1983-11-04T18:20:14+03:30", "utc": "1983-11-04T14:50:14Z", "ms": 436805414004.8138 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 03:41 on Fri 4 Nov to 01:51 on Sat 5 Nov.", "fact": "1983-11-04T00:10:57Z → 1983-11-04T22:21:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:34–18:21 on the 3rd, 16:33–18:20 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 0 of 107 minutes on the 3rd and 107 of 107 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27053 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Mashhad, 1983: Friday 4 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": "1983-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-04", "confidence": "determinate" } ], "quote": "In Mashhad, Lakṣmī Pūjā (Diwali) 1983 falls on Friday 4 November. Amāvasyā runs from 03:41 on Fri 4 Nov to 01:51 on Sat 5 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7901, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1983-11-04T03:40:57+03:30", "utc": "1983-11-04T00:10:57Z", "ms": 436752657083.8182 }, "end": { "local": "1983-11-05T01:51:07+03:30", "utc": "1983-11-04T22:21:07Z", "ms": 436832467048.85187 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-04T03:40:57+03:30", "utc": "1983-11-04T00:10:57Z", "ms": 436752657083.8182 }, "end": { "local": "1983-11-05T01:51:07+03:30", "utc": "1983-11-04T22:21:07Z", "ms": 436832467048.85187 } }, "kaala": "nishita", "days": [ { "local_date": "1983-11-03", "window": { "start": { "local": "1983-11-03T22:51:25+03:30", "utc": "1983-11-03T19:21:25Z", "ms": 436735285335.21545 }, "end": { "local": "1983-11-03T23:39:25+03:30", "utc": "1983-11-03T20:09:25Z", "ms": 436738165335.21545 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-11-04", "window": { "start": { "local": "1983-11-04T22:51:26+03:30", "utc": "1983-11-04T19:21:26Z", "ms": 436821685730.91846 }, "end": { "local": "1983-11-04T23:39:26+03:30", "utc": "1983-11-04T20:09:26Z", "ms": 436824565730.91846 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 03:41 on Fri 4 Nov to 01:51 on Sat 5 Nov.", "fact": "1983-11-04T00:10:57Z → 1983-11-04T22:21:07Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:51–23:39 on the 3rd, 22:51–23:39 on the 4th.", "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 3rd and 48 of 48 on the 4th.", "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 7901 s" }, { "step": "ruling", "text": "Kālī Pūjā, Mashhad, 1983: Friday 4 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": "1983-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-04", "confidence": "determinate" } ], "quote": "In Mashhad, Kālī Pūjā 1983 falls on Friday 4 November. Amāvasyā runs from 03:41 on Fri 4 Nov to 01:51 on Sat 5 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32390, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1983-11-05T01:51:07+03:30", "utc": "1983-11-04T22:21:07Z", "ms": 436832467048.85187 }, "end": { "local": "1983-11-06T00:31:11+03:30", "utc": "1983-11-05T21:01:11Z", "ms": 436914070970.73346 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-05T01:51:07+03:30", "utc": "1983-11-04T22:21:07Z", "ms": 436832467048.85187 }, "end": { "local": "1983-11-06T00:31:11+03:30", "utc": "1983-11-05T21:01:11Z", "ms": 436914070970.73346 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-11-05", "window": { "start": { "local": "1983-11-05T10:50:57+03:30", "utc": "1983-11-05T07:20:57Z", "ms": 436864856807.96387 }, "end": { "local": "1983-11-05T11:38:57+03:30", "utc": "1983-11-05T08:08:57Z", "ms": 436867736807.96387 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-11-06", "window": { "start": { "local": "1983-11-06T10:50:59+03:30", "utc": "1983-11-06T07:20:59Z", "ms": 436951258735.44275 }, "end": { "local": "1983-11-06T11:38:59+03:30", "utc": "1983-11-06T08:08:59Z", "ms": 436954138735.44275 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 01:51 on Sat 5 Nov to 00:31 on Sun 6 Nov.", "fact": "1983-11-04T22:21:07Z → 1983-11-05T21:01:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 5th, 10:51–11:39 on the 6th.", "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 5th and 0 of 48 on the 6th.", "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 32390 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Mashhad, 1983: Saturday 5 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": "1983-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-05", "confidence": "determinate" } ], "quote": "In Mashhad, Govardhana Pūjā 1983 falls on Saturday 5 November. Pratipadā runs from 01:51 on Sat 5 Nov to 00:31 on Sun 6 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22299, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1983-11-05T01:51:07+03:30", "utc": "1983-11-04T22:21:07Z", "ms": 436832467048.85187 }, "end": { "local": "1983-11-06T00:31:11+03:30", "utc": "1983-11-05T21:01:11Z", "ms": 436914070970.73346 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-05T01:51:07+03:30", "utc": "1983-11-04T22:21:07Z", "ms": 436832467048.85187 }, "end": { "local": "1983-11-06T00:31:11+03:30", "utc": "1983-11-05T21:01:11Z", "ms": 436914070970.73346 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-11-04", "window": { "start": { "local": "1983-11-04T16:32:53+03:30", "utc": "1983-11-04T13:02:53Z", "ms": 436798973377.13934 }, "end": { "local": "1983-11-04T18:20:14+03:30", "utc": "1983-11-04T14:50:14Z", "ms": 436805414004.8138 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1983-11-05", "window": { "start": { "local": "1983-11-05T16:31:56+03:30", "utc": "1983-11-05T13:01:56Z", "ms": 436885315531.23016 }, "end": { "local": "1983-11-05T18:19:32+03:30", "utc": "1983-11-05T14:49:32Z", "ms": 436891771907.5113 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 01:51 on Sat 5 Nov to 00:31 on Sun 6 Nov.", "fact": "1983-11-04T22:21:07Z → 1983-11-05T21:01:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:33–18:20 on the 4th, 16:32–18:20 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 0 of 107 minutes on the 4th and 108 of 108 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22299 s" }, { "step": "ruling", "text": "Bali Pūjā, Mashhad, 1983: Saturday 5 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": "1983-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-05", "confidence": "determinate" } ], "quote": "In Mashhad, Bali Pūjā 1983 falls on Saturday 5 November. Pratipadā runs from 01:51 on Sat 5 Nov to 00:31 on Sun 6 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14811, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1983-11-05T01:51:07+03:30", "utc": "1983-11-04T22:21:07Z", "ms": 436832467048.85187 }, "end": { "local": "1983-11-06T00:31:11+03:30", "utc": "1983-11-05T21:01:11Z", "ms": 436914070970.73346 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-05T01:51:07+03:30", "utc": "1983-11-04T22:21:07Z", "ms": 436832467048.85187 }, "end": { "local": "1983-11-06T00:31:11+03:30", "utc": "1983-11-05T21:01:11Z", "ms": 436914070970.73346 } }, "kaala": "purvahna", "days": [ { "local_date": "1983-11-05", "window": { "start": { "local": "1983-11-05T05:57:58+03:30", "utc": "1983-11-05T02:27:58Z", "ms": 436847278084.6976 }, "end": { "local": "1983-11-05T09:29:17+03:30", "utc": "1983-11-05T05:59:17Z", "ms": 436859957233.54175 } }, "covered_min": 211, "window_min": 211, "qualifies": true }, { "local_date": "1983-11-06", "window": { "start": { "local": "1983-11-06T05:58:58+03:30", "utc": "1983-11-06T02:28:58Z", "ms": 436933738353.3387 }, "end": { "local": "1983-11-06T09:29:39+03:30", "utc": "1983-11-06T05:59:39Z", "ms": 436946378608.0747 } }, "covered_min": 0, "window_min": 211, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 01:51 on Sat 5 Nov to 00:31 on Sun 6 Nov.", "fact": "1983-11-04T22:21:07Z → 1983-11-05T21:01:11Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:58–09:29 on the 5th, 05:59–09:30 on the 6th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 211 of 211 minutes on the 5th and 0 of 211 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14811 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Mashhad, 1983: Saturday 5 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-05", "confidence": "determinate" } ], "quote": "In Mashhad, Dyūta Pratipad 1983 falls on Saturday 5 November. Pratipadā runs from 01:51 on Sat 5 Nov to 00:31 on Sun 6 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37188, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1983-11-06T00:31:11+03:30", "utc": "1983-11-05T21:01:11Z", "ms": 436914070970.73346 }, "end": { "local": "1983-11-06T23:47:46+03:30", "utc": "1983-11-06T20:17:46Z", "ms": 436997865511.1991 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-06T00:31:11+03:30", "utc": "1983-11-05T21:01:11Z", "ms": 436914070970.73346 }, "end": { "local": "1983-11-06T23:47:46+03:30", "utc": "1983-11-06T20:17:46Z", "ms": 436997865511.1991 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-11-06", "window": { "start": { "local": "1983-11-06T10:50:59+03:30", "utc": "1983-11-06T07:20:59Z", "ms": 436951258735.44275 }, "end": { "local": "1983-11-06T11:38:59+03:30", "utc": "1983-11-06T08:08:59Z", "ms": 436954138735.44275 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-11-07", "window": { "start": { "local": "1983-11-07T10:51:01+03:30", "utc": "1983-11-07T07:21:01Z", "ms": 437037661494.5324 }, "end": { "local": "1983-11-07T11:39:01+03:30", "utc": "1983-11-07T08:09:01Z", "ms": 437040541494.5324 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 00:31 on Sun 6 Nov to 23:48 on Sun 6 Nov.", "fact": "1983-11-05T21:01:11Z → 1983-11-06T20:17:46Z" }, { "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": "Dvitīyā 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 37188 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Mashhad, 1983: Sunday 6 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": "1983-11-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-06", "confidence": "determinate" } ], "quote": "In Mashhad, Yama Dvitīyā (Bhai Dooj) 1983 falls on Sunday 6 November. Dvitīyā runs from 00:31 on Sun 6 Nov to 23:48 on Sun 6 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37497, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-11-07T23:45:31+03:30", "utc": "1983-11-07T20:15:31Z", "ms": 437084130864.046 }, "end": { "local": "1983-11-09T00:26:12+03:30", "utc": "1983-11-08T20:56:12Z", "ms": 437172972461.87067 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-07T23:45:31+03:30", "utc": "1983-11-07T20:15:31Z", "ms": 437084130864.046 }, "end": { "local": "1983-11-09T00:26:12+03:30", "utc": "1983-11-08T20:56:12Z", "ms": 437172972461.87067 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-11-08", "window": { "start": { "local": "1983-11-08T10:51:05+03:30", "utc": "1983-11-08T07:21:05Z", "ms": 437124065086.8298 }, "end": { "local": "1983-11-08T11:39:05+03:30", "utc": "1983-11-08T08:09:05Z", "ms": 437126945086.8298 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-11-09", "window": { "start": { "local": "1983-11-09T10:51:10+03:30", "utc": "1983-11-09T07:21:10Z", "ms": 437210469513.7311 }, "end": { "local": "1983-11-09T11:39:10+03:30", "utc": "1983-11-09T08:09:10Z", "ms": 437213349513.7311 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:46 on Mon 7 Nov to 00:26 on Wed 9 Nov.", "fact": "1983-11-07T20:15:31Z → 1983-11-08T20:56:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 8th, 10:51–11:39 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 37497 s" }, { "step": "ruling", "text": "Nāga Caturthī, Mashhad, 1983: Tuesday 8 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": "1983-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-08", "confidence": "determinate" } ], "quote": "In Mashhad, Nāga Caturthī 1983 falls on Tuesday 8 November. Caturthī runs from 23:46 on Mon 7 Nov to 00:26 on Wed 9 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/vinayaka-chaturthi?on=1983-11-08", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37497, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-11-07T23:45:31+03:30", "utc": "1983-11-07T20:15:31Z", "ms": 437084130864.046 }, "end": { "local": "1983-11-09T00:26:12+03:30", "utc": "1983-11-08T20:56:12Z", "ms": 437172972461.87067 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-07T23:45:31+03:30", "utc": "1983-11-07T20:15:31Z", "ms": 437084130864.046 }, "end": { "local": "1983-11-09T00:26:12+03:30", "utc": "1983-11-08T20:56:12Z", "ms": 437172972461.87067 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-11-08", "window": { "start": { "local": "1983-11-08T10:51:05+03:30", "utc": "1983-11-08T07:21:05Z", "ms": 437124065086.8298 }, "end": { "local": "1983-11-08T11:39:05+03:30", "utc": "1983-11-08T08:09:05Z", "ms": 437126945086.8298 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-11-09", "window": { "start": { "local": "1983-11-09T10:51:10+03:30", "utc": "1983-11-09T07:21:10Z", "ms": 437210469513.7311 }, "end": { "local": "1983-11-09T11:39:10+03:30", "utc": "1983-11-09T08:09:10Z", "ms": 437213349513.7311 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:46 on Mon 7 Nov to 00:26 on Wed 9 Nov.", "fact": "1983-11-07T20:15:31Z → 1983-11-08T20:56:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 8th, 10:51–11:39 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37497 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Tuesday 8 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": "1983-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-08", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Tuesday 8 November. Caturthī runs from 23:46 on Mon 7 Nov to 00:26 on Wed 9 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-11-08", "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/1983/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25646, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1983-11-10T01:47:48+03:30", "utc": "1983-11-09T22:17:48Z", "ms": 437264267666.62695 }, "end": { "local": "1983-11-11T03:43:55+03:30", "utc": "1983-11-11T00:13:55Z", "ms": 437357635249.7106 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-10T01:47:48+03:30", "utc": "1983-11-09T22:17:48Z", "ms": 437264267666.62695 }, "end": { "local": "1983-11-11T03:43:55+03:30", "utc": "1983-11-11T00:13:55Z", "ms": 437357635249.7106 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-11-10", "window": { "start": { "local": "1983-11-10T10:51:15+03:30", "utc": "1983-11-10T07:21:15Z", "ms": 437296874776.44104 }, "end": { "local": "1983-11-10T11:39:15+03:30", "utc": "1983-11-10T08:09:15Z", "ms": 437299754776.44104 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-11-11", "window": { "start": { "local": "1983-11-11T10:51:21+03:30", "utc": "1983-11-11T07:21:21Z", "ms": 437383280875.9146 }, "end": { "local": "1983-11-11T11:39:21+03:30", "utc": "1983-11-11T08:09:21Z", "ms": 437386160875.9146 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 01:48 on Thu 10 Nov to 03:44 on Fri 11 Nov.", "fact": "1983-11-09T22:17:48Z → 1983-11-11T00:13:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 10th, 10:51–11:39 on the 11th.", "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 10th and 0 of 48 on the 11th.", "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 25646 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Mashhad, 1983: Thursday 10 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": "1983-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-10", "confidence": "determinate" } ], "quote": "In Mashhad, Sūrya Ṣaṣṭhī (Chhath) 1983 falls on Thursday 10 November. Ṣaṣṭhī runs from 01:48 on Thu 10 Nov to 03:44 on Fri 11 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8193, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1983-11-12T06:04:08+03:30", "utc": "1983-11-12T02:34:08Z", "ms": 437452448327.4031 }, "end": { "local": "1983-11-13T08:35:03+03:30", "utc": "1983-11-13T05:05:03Z", "ms": 437547902975.1497 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-12T06:04:08+03:30", "utc": "1983-11-12T02:34:08Z", "ms": 437452448327.4031 }, "end": { "local": "1983-11-13T08:35:03+03:30", "utc": "1983-11-13T05:05:03Z", "ms": 437547902975.1497 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-11-12", "window": { "start": { "local": "1983-11-12T10:51:28+03:30", "utc": "1983-11-12T07:21:28Z", "ms": 437469687812.7698 }, "end": { "local": "1983-11-12T11:39:28+03:30", "utc": "1983-11-12T08:09:28Z", "ms": 437472567812.7698 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-11-13", "window": { "start": { "local": "1983-11-13T10:51:36+03:30", "utc": "1983-11-13T07:21:36Z", "ms": 437556095587.2039 }, "end": { "local": "1983-11-13T11:39:36+03:30", "utc": "1983-11-13T08:09:36Z", "ms": 437558975587.2039 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 06:04 on Sat 12 Nov to 08:35 on Sun 13 Nov.", "fact": "1983-11-12T02:34:08Z → 1983-11-13T05:05:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:51–11:39 on the 12th, 10:52–11:40 on the 13th.", "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 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: unstated → only-day · margin 8193 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Mashhad, 1983: Saturday 12 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": "1983-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-12", "confidence": "determinate" } ], "quote": "In Mashhad, Gopāṣṭamī 1983 falls on Saturday 12 November. Aṣṭamī runs from 06:04 on Sat 12 Nov to 08:35 on Sun 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 630, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1983-11-13T08:35:03+03:30", "utc": "1983-11-13T05:05:03Z", "ms": 437547902975.1497 }, "end": { "local": "1983-11-14T11:02:14+03:30", "utc": "1983-11-14T07:32:14Z", "ms": 437643133883.8906 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-13T08:35:03+03:30", "utc": "1983-11-13T05:05:03Z", "ms": 437547902975.1497 }, "end": { "local": "1983-11-14T11:02:14+03:30", "utc": "1983-11-14T07:32:14Z", "ms": 437643133883.8906 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-11-13", "window": { "start": { "local": "1983-11-13T10:51:36+03:30", "utc": "1983-11-13T07:21:36Z", "ms": 437556095587.2039 }, "end": { "local": "1983-11-13T11:39:36+03:30", "utc": "1983-11-13T08:09:36Z", "ms": 437558975587.2039 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-11-14", "window": { "start": { "local": "1983-11-14T10:51:44+03:30", "utc": "1983-11-14T07:21:44Z", "ms": 437642504198.9332 }, "end": { "local": "1983-11-14T11:39:44+03:30", "utc": "1983-11-14T08:09:44Z", "ms": 437645384198.9332 } }, "covered_min": 10, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Navamī runs from 08:35 on Sun 13 Nov to 11:02 on Mon 14 Nov.", "fact": "1983-11-13T05:05:03Z → 1983-11-14T07:32:14Z" }, { "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": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 10 of 48 on the 14th.", "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 630 s" }, { "step": "ruling", "text": "Durgā Navamī, Mashhad, 1983: Sunday 13 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": "1983-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-13", "confidence": "determinate" } ], "quote": "In Mashhad, Durgā Navamī 1983 falls on Sunday 13 November. Navamī runs from 08:35 on Sun 13 Nov to 11:02 on Mon 14 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 10 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-14", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 3442, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1983-11-13T08:35:03+03:30", "utc": "1983-11-13T05:05:03Z", "ms": 437547902975.1497 }, "end": { "local": "1983-11-14T11:02:14+03:30", "utc": "1983-11-14T07:32:14Z", "ms": 437643133883.8906 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-13T08:35:03+03:30", "utc": "1983-11-13T05:05:03Z", "ms": 437547902975.1497 }, "end": { "local": "1983-11-14T11:02:14+03:30", "utc": "1983-11-14T07:32:14Z", "ms": 437643133883.8906 } }, "kaala": "purvahna", "days": [ { "local_date": "1983-11-13", "window": { "start": { "local": "1983-11-13T06:06:04+03:30", "utc": "1983-11-13T02:36:04Z", "ms": 437538964441.65674 }, "end": { "local": "1983-11-13T09:32:25+03:30", "utc": "1983-11-13T06:02:25Z", "ms": 437551345205.35486 } }, "covered_min": 57, "window_min": 206, "qualifies": true }, { "local_date": "1983-11-14", "window": { "start": { "local": "1983-11-14T06:07:06+03:30", "utc": "1983-11-14T02:37:06Z", "ms": 437625425585.5211 }, "end": { "local": "1983-11-14T09:32:51+03:30", "utc": "1983-11-14T06:02:51Z", "ms": 437637771327.79584 } }, "covered_min": 206, "window_min": 206, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Navamī runs from 08:35 on Sun 13 Nov to 11:02 on Mon 14 Nov.", "fact": "1983-11-13T05:05:03Z → 1983-11-14T07:32:14Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:06–09:32 on the 13th, 06:07–09:33 on the 14th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 57 of 206 minutes on the 13th and 206 of 206 on the 14th.", "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 3442 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Mashhad, 1983: Monday 14 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": "1983-11-14", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-14", "confidence": "boundary" } ], "quote": "In Mashhad, Akṣaya Navamī (Amla Navami) 1983 falls on Monday 14 November. Navamī runs from 08:35 on Sun 13 Nov to 11:02 on Mon 14 Nov and covers all of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 57 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/1983/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/1983/ekadashi?on=1983-11-16", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25459, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-11-15T13:12:26+03:30", "utc": "1983-11-15T09:42:26Z", "ms": 437737345567.63806 }, "end": { "local": "1983-11-16T14:55:19+03:30", "utc": "1983-11-16T11:25:19Z", "ms": 437829919238.9149 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-15T13:12:26+03:30", "utc": "1983-11-15T09:42:26Z", "ms": 437737345567.63806 }, "end": { "local": "1983-11-16T14:55:19+03:30", "utc": "1983-11-16T11:25:19Z", "ms": 437829919238.9149 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-11-15", "window": { "start": { "local": "1983-11-15T06:08:07+03:30", "utc": "1983-11-15T02:38:07Z", "ms": 437711886712.0016 }, "end": { "local": "1983-11-15T06:08:07+03:30", "utc": "1983-11-15T02:38:07Z", "ms": 437711886712.0016 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-11-16", "window": { "start": { "local": "1983-11-16T06:09:08+03:30", "utc": "1983-11-16T02:39:08Z", "ms": 437798347789.68036 }, "end": { "local": "1983-11-16T06:09:08+03:30", "utc": "1983-11-16T02:39:08Z", "ms": 437798347789.68036 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:12 on Tue 15 Nov to 14:55 on Wed 16 Nov.", "fact": "1983-11-15T09:42:26Z → 1983-11-16T11:25:19Z" }, { "step": "kaala", "text": "Sunrise is at 06:08 on the 15th and 06:09 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 15th and is on the 16th.", "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 25459 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Mashhad, 1983: Wednesday 16 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": "1983-11-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-16", "confidence": "determinate" } ], "quote": "In Mashhad, Prabodhinī Ekādaśī 1983 falls on Wednesday 16 November. Ekādaśī runs from 13:12 on Tue 15 Nov to 14:55 on Wed 16 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-11-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1983/pradosha-vrata?on=1983-11-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-17", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 935, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-11-17T16:04:28+03:30", "utc": "1983-11-17T12:34:28Z", "ms": 437920468352.71204 }, "end": { "local": "1983-11-18T16:37:20+03:30", "utc": "1983-11-18T13:07:20Z", "ms": 438008839774.3123 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-17T16:04:28+03:30", "utc": "1983-11-17T12:34:28Z", "ms": 437920468352.71204 }, "end": { "local": "1983-11-18T16:37:20+03:30", "utc": "1983-11-18T13:07:20Z", "ms": 438008839774.3123 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-11-17", "window": { "start": { "local": "1983-11-17T16:22:21+03:30", "utc": "1983-11-17T12:52:21Z", "ms": 437921541306.7478 }, "end": { "local": "1983-11-17T18:12:52+03:30", "utc": "1983-11-17T14:42:52Z", "ms": 437928171755.96185 } }, "covered_min": 111, "window_min": 111, "qualifies": true }, { "local_date": "1983-11-18", "window": { "start": { "local": "1983-11-18T16:21:44+03:30", "utc": "1983-11-18T12:51:44Z", "ms": 438007904314.9478 }, "end": { "local": "1983-11-18T18:12:28+03:30", "utc": "1983-11-18T14:42:28Z", "ms": 438014547795.7731 } }, "covered_min": 16, "window_min": 111, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:04 on Thu 17 Nov to 16:37 on Fri 18 Nov.", "fact": "1983-11-17T12:34:28Z → 1983-11-18T13:07:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:22–18:13 on the 17th, 16:22–18:12 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 111 of 111 minutes on the 17th and 16 of 111 on the 18th.", "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 935 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Thursday 17 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-11-17", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-17", "confidence": "boundary" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Thursday 17 November. Trayodaśī runs from 16:04 on Thu 17 Nov to 16:37 on Fri 18 Nov and covers all of pradoṣa that evening. It also reaches the next evening for 16 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/1983/pradosha-vrata?on=1983-11-17", "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/1983/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22714, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-11-19T16:34:36+03:30", "utc": "1983-11-19T13:04:36Z", "ms": 438095076230.3708 }, "end": { "local": "1983-11-20T15:59:21+03:30", "utc": "1983-11-20T12:29:21Z", "ms": 438179361348.7301 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-19T16:34:36+03:30", "utc": "1983-11-19T13:04:36Z", "ms": 438095076230.3708 }, "end": { "local": "1983-11-20T15:59:21+03:30", "utc": "1983-11-20T12:29:21Z", "ms": 438179361348.7301 } }, "kaala": "nishita", "days": [ { "local_date": "1983-11-19", "window": { "start": { "local": "1983-11-19T22:53:10+03:30", "utc": "1983-11-19T19:23:10Z", "ms": 438117790057.0919 }, "end": { "local": "1983-11-19T23:41:10+03:30", "utc": "1983-11-19T20:11:10Z", "ms": 438120670057.0919 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-11-20", "window": { "start": { "local": "1983-11-20T22:53:24+03:30", "utc": "1983-11-20T19:23:24Z", "ms": 438204203554.9255 }, "end": { "local": "1983-11-20T23:41:24+03:30", "utc": "1983-11-20T20:11:24Z", "ms": 438207083554.9255 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:35 on Sat 19 Nov to 15:59 on Sun 20 Nov.", "fact": "1983-11-19T13:04:36Z → 1983-11-20T12:29:21Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:53–23:41 on the 19th, 22:53–23:41 on the 20th.", "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 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22714 s" }, { "step": "ruling", "text": "Rāsayātrā, Mashhad, 1983: Saturday 19 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": "1983-11-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-19", "confidence": "determinate" } ], "quote": "In Mashhad, Rāsayātrā 1983 falls on Saturday 19 November. Pūrṇimā runs from 16:35 on Sat 19 Nov to 15:59 on Sun 20 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15508, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-11-19T16:34:36+03:30", "utc": "1983-11-19T13:04:36Z", "ms": 438095076230.3708 }, "end": { "local": "1983-11-20T15:59:21+03:30", "utc": "1983-11-20T12:29:21Z", "ms": 438179361348.7301 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1983-11-19T16:34:36+03:30", "utc": "1983-11-19T13:04:36Z", "ms": 438095076230.3708 }, "end": { "local": "1983-11-20T15:59:21+03:30", "utc": "1983-11-20T12:29:21Z", "ms": 438179361348.7301 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-11-19", "window": { "start": { "local": "1983-11-19T10:52:40+03:30", "utc": "1983-11-19T07:22:40Z", "ms": 438074559771.7978 }, "end": { "local": "1983-11-19T11:40:40+03:30", "utc": "1983-11-19T08:10:40Z", "ms": 438077439771.7978 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-11-20", "window": { "start": { "local": "1983-11-20T10:52:53+03:30", "utc": "1983-11-20T07:22:53Z", "ms": 438160973373.3866 }, "end": { "local": "1983-11-20T11:40:53+03:30", "utc": "1983-11-20T08:10:53Z", "ms": 438163853373.3866 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:35 on Sat 19 Nov to 15:59 on Sun 20 Nov.", "fact": "1983-11-19T13:04:36Z → 1983-11-20T12:29:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:53–11:41 on the 19th, 10:53–11:41 on the 20th.", "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 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15508 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Mashhad, 1983: Sunday 20 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": "1983-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-20", "confidence": "determinate" } ], "quote": "In Mashhad, Kārtikī Pūrṇimā 1983 falls on Sunday 20 November. Pūrṇimā runs from 16:35 on Sat 19 Nov to 15:59 on Sun 20 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sankashta-chaturthi?on=1983-11-23", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25569, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-11-23T11:46:01+03:30", "utc": "1983-11-23T08:16:01Z", "ms": 438423360560.5898 }, "end": { "local": "1983-11-24T09:49:22+03:30", "utc": "1983-11-24T06:19:22Z", "ms": 438502762274.392 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-11-23T11:46:01+03:30", "utc": "1983-11-23T08:16:01Z", "ms": 438423360560.5898 }, "end": { "local": "1983-11-24T09:49:22+03:30", "utc": "1983-11-24T06:19:22Z", "ms": 438502762274.392 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-11-23", "window": { "start": { "local": "1983-11-23T18:52:10+03:30", "utc": "1983-11-23T15:22:10Z", "ms": 438448930023.9112 }, "end": { "local": "1983-11-23T18:52:10+03:30", "utc": "1983-11-23T15:22:10Z", "ms": 438448930023.9112 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-11-24", "window": { "start": { "local": "1983-11-24T19:56:13+03:30", "utc": "1983-11-24T16:26:13Z", "ms": 438539173464.80786 }, "end": { "local": "1983-11-24T19:56:13+03:30", "utc": "1983-11-24T16:26:13Z", "ms": 438539173464.80786 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:46 on Wed 23 Nov to 09:49 on Thu 24 Nov.", "fact": "1983-11-23T08:16:01Z → 1983-11-24T06:19:22Z" }, { "step": "kaala", "text": "Moonrise is at 18:52 on the 23rd and 19:56 on the 24th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 23rd and is not 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 25569 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Wednesday 23 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-11-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-23", "confidence": "determinate" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Wednesday 23 November. Caturthī runs from 11:46 on Wed 23 Nov to 09:49 on Thu 24 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-11-23", "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/1983/ekadashi?on=1983-11-30", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-11-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32676, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-11-29T21:18:23+03:30", "utc": "1983-11-29T17:48:23Z", "ms": 438976102850.1735 }, "end": { "local": "1983-11-30T19:35:04+03:30", "utc": "1983-11-30T16:05:04Z", "ms": 439056304372.55383 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-11-29T21:18:23+03:30", "utc": "1983-11-29T17:48:23Z", "ms": 438976102850.1735 }, "end": { "local": "1983-11-30T19:35:04+03:30", "utc": "1983-11-30T16:05:04Z", "ms": 439056304372.55383 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-11-30", "window": { "start": { "local": "1983-11-30T06:22:59+03:30", "utc": "1983-11-30T02:52:59Z", "ms": 439008779165.59576 }, "end": { "local": "1983-11-30T06:22:59+03:30", "utc": "1983-11-30T02:52:59Z", "ms": 439008779165.59576 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1983-12-01", "window": { "start": { "local": "1983-12-01T06:23:55+03:30", "utc": "1983-12-01T02:53:55Z", "ms": 439095235306.11035 }, "end": { "local": "1983-12-01T06:23:55+03:30", "utc": "1983-12-01T02:53:55Z", "ms": 439095235306.11035 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:18 on Tue 29 Nov to 19:35 on Wed 30 Nov.", "fact": "1983-11-29T17:48:23Z → 1983-11-30T16:05:04Z" }, { "step": "kaala", "text": "Sunrise is at 06:23 on the 30th and 06:24 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 30th and is not on the 1st.", "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 32676 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Mashhad, 1983: Wednesday 30 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": "1983-11-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-11-30", "confidence": "determinate" } ], "quote": "In Mashhad, Utpannā Ekādaśī 1983 falls on Wednesday 30 November. Ekādaśī runs from 21:18 on Tue 29 Nov to 19:35 on Wed 30 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-11-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1983/pradosha-vrata?on=1983-12-02", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-02", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 158, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-12-01T18:07:04+03:30", "utc": "1983-12-01T14:37:04Z", "ms": 439137423563.4907 }, "end": { "local": "1983-12-02T16:58:23+03:30", "utc": "1983-12-02T13:28:23Z", "ms": 439219703277.67035 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-01T18:07:04+03:30", "utc": "1983-12-01T14:37:04Z", "ms": 439137423563.4907 }, "end": { "local": "1983-12-02T16:58:23+03:30", "utc": "1983-12-02T13:28:23Z", "ms": 439219703277.67035 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-12-01", "window": { "start": { "local": "1983-12-01T16:16:36+03:30", "utc": "1983-12-01T12:46:36Z", "ms": 439130795601.83826 }, "end": { "local": "1983-12-01T18:09:42+03:30", "utc": "1983-12-01T14:39:42Z", "ms": 439137581623.7512 } }, "covered_min": 3, "window_min": 113, "qualifies": true }, { "local_date": "1983-12-02", "window": { "start": { "local": "1983-12-02T16:16:26+03:30", "utc": "1983-12-02T12:46:26Z", "ms": 439217185742.3206 }, "end": { "local": "1983-12-02T18:09:40+03:30", "utc": "1983-12-02T14:39:40Z", "ms": 439223980375.69214 } }, "covered_min": 42, "window_min": 113, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:07 on Thu 1 Dec to 16:58 on Fri 2 Dec.", "fact": "1983-12-01T14:37:04Z → 1983-12-02T13:28:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:17–18:10 on the 1st, 16:16–18:10 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 3 of 113 minutes on the 1st and 42 of 113 on the 2nd.", "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 158 s < 300 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Friday 2 December.", "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": "1983-12-02", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-01", "confidence": "boundary" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Friday 2 December. Trayodaśī runs from 18:07 on Thu 1 Dec to 16:58 on Fri 2 Dec and covers 42 of 113 minutes of pradoṣa that evening. It also reaches the previous evening for 3 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 2 min 38 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-12-02", "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/1983/shivaratri?on=1983-12-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21522, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1983-12-02T16:58:23+03:30", "utc": "1983-12-02T13:28:23Z", "ms": 439219703277.67035 }, "end": { "local": "1983-12-03T16:13:17+03:30", "utc": "1983-12-03T12:43:17Z", "ms": 439303397201.3797 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-02T16:58:23+03:30", "utc": "1983-12-02T13:28:23Z", "ms": 439219703277.67035 }, "end": { "local": "1983-12-03T16:13:17+03:30", "utc": "1983-12-03T12:43:17Z", "ms": 439303397201.3797 } }, "kaala": "nishita", "days": [ { "local_date": "1983-12-02", "window": { "start": { "local": "1983-12-02T22:57:06+03:30", "utc": "1983-12-02T19:27:06Z", "ms": 439241225617.4638 }, "end": { "local": "1983-12-02T23:45:06+03:30", "utc": "1983-12-02T20:15:06Z", "ms": 439244105617.4638 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-12-03", "window": { "start": { "local": "1983-12-03T22:57:29+03:30", "utc": "1983-12-03T19:27:29Z", "ms": 439327648673.6691 }, "end": { "local": "1983-12-03T23:45:29+03:30", "utc": "1983-12-03T20:15:29Z", "ms": 439330528673.6691 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:58 on Fri 2 Dec to 16:13 on Sat 3 Dec.", "fact": "1983-12-02T13:28:23Z → 1983-12-03T12:43:17Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 22:57–23:45 on the 2nd, 22:57–23:45 on the 3rd.", "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 2nd and 0 of 48 on the 3rd.", "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 21522 s" }, { "step": "ruling", "text": "Śivarātri, Mashhad, 1983: Friday 2 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1983-12-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-02", "confidence": "determinate" } ], "quote": "In Mashhad, Śivarātri 1983 falls on Friday 2 December. Caturdaśī runs from 16:58 on Fri 2 Dec to 16:13 on Sat 3 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/mashhad/festivals/1983/shivaratri?on=1983-12-02", "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/1983/vinayaka-chaturthi?on=1983-12-08", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23415, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-12-07T18:16:57+03:30", "utc": "1983-12-07T14:46:57Z", "ms": 439656416831.5416 }, "end": { "local": "1983-12-08T20:07:59+03:30", "utc": "1983-12-08T16:37:59Z", "ms": 439749479395.1448 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-07T18:16:57+03:30", "utc": "1983-12-07T14:46:57Z", "ms": 439656416831.5416 }, "end": { "local": "1983-12-08T20:07:59+03:30", "utc": "1983-12-08T16:37:59Z", "ms": 439749479395.1448 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-12-07", "window": { "start": { "local": "1983-12-07T10:58:41+03:30", "utc": "1983-12-07T07:28:41Z", "ms": 439630121449.4897 }, "end": { "local": "1983-12-07T11:46:41+03:30", "utc": "1983-12-07T08:16:41Z", "ms": 439633001449.4897 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-12-08", "window": { "start": { "local": "1983-12-08T10:59:08+03:30", "utc": "1983-12-08T07:29:08Z", "ms": 439716547725.3247 }, "end": { "local": "1983-12-08T11:47:08+03:30", "utc": "1983-12-08T08:17:08Z", "ms": 439719427725.3247 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:17 on Wed 7 Dec to 20:08 on Thu 8 Dec.", "fact": "1983-12-07T14:46:57Z → 1983-12-08T16:37:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 10:59–11:47 on the 7th, 10:59–11:47 on the 8th.", "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 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23415 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Mashhad, 1983: Thursday 8 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": "1983-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-08", "confidence": "determinate" } ], "quote": "In Mashhad, Vināyaka Caturthī 1983 falls on Thursday 8 December. Caturthī runs from 18:17 on Wed 7 Dec to 20:08 on Thu 8 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/vinayaka-chaturthi?on=1983-12-08", "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/1983/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30052, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1983-12-08T20:07:59+03:30", "utc": "1983-12-08T16:37:59Z", "ms": 439749479395.1448 }, "end": { "local": "1983-12-09T22:23:28+03:30", "utc": "1983-12-09T18:53:28Z", "ms": 439844007660.12036 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-08T20:07:59+03:30", "utc": "1983-12-08T16:37:59Z", "ms": 439749479395.1448 }, "end": { "local": "1983-12-09T22:23:28+03:30", "utc": "1983-12-09T18:53:28Z", "ms": 439844007660.12036 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-12-08", "window": { "start": { "local": "1983-12-08T10:59:08+03:30", "utc": "1983-12-08T07:29:08Z", "ms": 439716547725.3247 }, "end": { "local": "1983-12-08T11:47:08+03:30", "utc": "1983-12-08T08:17:08Z", "ms": 439719427725.3247 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1983-12-09", "window": { "start": { "local": "1983-12-09T10:59:34+03:30", "utc": "1983-12-09T07:29:34Z", "ms": 439802974476.78784 }, "end": { "local": "1983-12-09T11:47:34+03:30", "utc": "1983-12-09T08:17:34Z", "ms": 439805854476.78784 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 20:08 on Thu 8 Dec to 22:23 on Fri 9 Dec.", "fact": "1983-12-08T16:37:59Z → 1983-12-09T18:53:28Z" }, { "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": "Pañcamī 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30052 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Mashhad, 1983: Friday 9 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": "1983-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-09", "confidence": "determinate" } ], "quote": "In Mashhad, Nāga Pañcamī (Mārgaśīrṣa) 1983 falls on Friday 9 December. Pañcamī runs from 20:08 on Thu 8 Dec to 22:23 on Fri 9 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36409, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1983-12-09T22:23:28+03:30", "utc": "1983-12-09T18:53:28Z", "ms": 439844007660.12036 }, "end": { "local": "1983-12-11T00:53:40+03:30", "utc": "1983-12-10T21:23:40Z", "ms": 439939420355.56226 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-09T22:23:28+03:30", "utc": "1983-12-09T18:53:28Z", "ms": 439844007660.12036 }, "end": { "local": "1983-12-11T00:53:40+03:30", "utc": "1983-12-10T21:23:40Z", "ms": 439939420355.56226 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-12-10", "window": { "start": { "local": "1983-12-10T11:00:02+03:30", "utc": "1983-12-10T07:30:02Z", "ms": 439889401673.249 }, "end": { "local": "1983-12-10T11:48:02+03:30", "utc": "1983-12-10T08:18:02Z", "ms": 439892281673.249 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-12-11", "window": { "start": { "local": "1983-12-11T11:00:29+03:30", "utc": "1983-12-11T07:30:29Z", "ms": 439975829283.84204 }, "end": { "local": "1983-12-11T11:48:29+03:30", "utc": "1983-12-11T08:18:29Z", "ms": 439978709283.84204 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:23 on Fri 9 Dec to 00:54 on Sun 11 Dec.", "fact": "1983-12-09T18:53:28Z → 1983-12-10T21:23:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:00–11:48 on the 10th, 11:00–11:48 on the 11th.", "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 10th and 0 of 48 on the 11th.", "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 36409 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Mashhad, 1983: Saturday 10 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": "1983-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-10", "confidence": "determinate" } ], "quote": "In Mashhad, Campā Ṣaṣṭhī 1983 falls on Saturday 10 December. Ṣaṣṭhī runs from 22:23 on Fri 9 Dec to 00:54 on Sun 11 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36409, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1983-12-09T22:23:28+03:30", "utc": "1983-12-09T18:53:28Z", "ms": 439844007660.12036 }, "end": { "local": "1983-12-11T00:53:40+03:30", "utc": "1983-12-10T21:23:40Z", "ms": 439939420355.56226 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-09T22:23:28+03:30", "utc": "1983-12-09T18:53:28Z", "ms": 439844007660.12036 }, "end": { "local": "1983-12-11T00:53:40+03:30", "utc": "1983-12-10T21:23:40Z", "ms": 439939420355.56226 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-12-10", "window": { "start": { "local": "1983-12-10T11:00:02+03:30", "utc": "1983-12-10T07:30:02Z", "ms": 439889401673.249 }, "end": { "local": "1983-12-10T11:48:02+03:30", "utc": "1983-12-10T08:18:02Z", "ms": 439892281673.249 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-12-11", "window": { "start": { "local": "1983-12-11T11:00:29+03:30", "utc": "1983-12-11T07:30:29Z", "ms": 439975829283.84204 }, "end": { "local": "1983-12-11T11:48:29+03:30", "utc": "1983-12-11T08:18:29Z", "ms": 439978709283.84204 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:23 on Fri 9 Dec to 00:54 on Sun 11 Dec.", "fact": "1983-12-09T18:53:28Z → 1983-12-10T21:23:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:00–11:48 on the 10th, 11:00–11:48 on the 11th.", "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 10th and 0 of 48 on the 11th.", "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 36409 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Mashhad, 1983: Saturday 10 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": "1983-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-10", "confidence": "determinate" } ], "quote": "In Mashhad, Skanda Ṣaṣṭhī 1983 falls on Saturday 10 December. Ṣaṣṭhī runs from 22:23 on Fri 9 Dec to 00:54 on Sun 11 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27286, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1983-12-11T00:53:40+03:30", "utc": "1983-12-10T21:23:40Z", "ms": 439939420355.56226 }, "end": { "local": "1983-12-12T03:26:11+03:30", "utc": "1983-12-11T23:56:11Z", "ms": 440034970829.7324 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-11T00:53:40+03:30", "utc": "1983-12-10T21:23:40Z", "ms": 439939420355.56226 }, "end": { "local": "1983-12-12T03:26:11+03:30", "utc": "1983-12-11T23:56:11Z", "ms": 440034970829.7324 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-12-11", "window": { "start": { "local": "1983-12-11T11:00:29+03:30", "utc": "1983-12-11T07:30:29Z", "ms": 439975829283.84204 }, "end": { "local": "1983-12-11T11:48:29+03:30", "utc": "1983-12-11T08:18:29Z", "ms": 439978709283.84204 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-12-12", "window": { "start": { "local": "1983-12-12T11:00:57+03:30", "utc": "1983-12-12T07:30:57Z", "ms": 440062257277.52313 }, "end": { "local": "1983-12-12T11:48:57+03:30", "utc": "1983-12-12T08:18:57Z", "ms": 440065137277.52313 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 00:54 on Sun 11 Dec to 03:26 on Mon 12 Dec.", "fact": "1983-12-10T21:23:40Z → 1983-12-11T23:56:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:00–11:48 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": "Saptamī 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 27286 s" }, { "step": "ruling", "text": "Mitra Saptamī, Mashhad, 1983: Sunday 11 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": "1983-12-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-11", "confidence": "determinate" } ], "quote": "In Mashhad, Mitra Saptamī 1983 falls on Sunday 11 December. Saptamī runs from 00:54 on Sun 11 Dec to 03:26 on Mon 12 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/ekadashi?on=1983-12-16", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9025, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-12-15T09:05:50+03:30", "utc": "1983-12-15T05:35:50Z", "ms": 440314550439.073 }, "end": { "local": "1983-12-16T09:46:06+03:30", "utc": "1983-12-16T06:16:06Z", "ms": 440403365640.10297 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-15T09:05:50+03:30", "utc": "1983-12-15T05:35:50Z", "ms": 440314550439.073 }, "end": { "local": "1983-12-16T09:46:06+03:30", "utc": "1983-12-16T06:16:06Z", "ms": 440403365640.10297 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-12-15", "window": { "start": { "local": "1983-12-15T06:35:25+03:30", "utc": "1983-12-15T03:05:25Z", "ms": 440305525270.66046 }, "end": { "local": "1983-12-15T06:35:25+03:30", "utc": "1983-12-15T03:05:25Z", "ms": 440305525270.66046 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-12-16", "window": { "start": { "local": "1983-12-16T06:36:06+03:30", "utc": "1983-12-16T03:06:06Z", "ms": 440391965616.2328 }, "end": { "local": "1983-12-16T06:36:06+03:30", "utc": "1983-12-16T03:06:06Z", "ms": 440391965616.2328 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:06 on Thu 15 Dec to 09:46 on Fri 16 Dec.", "fact": "1983-12-15T05:35:50Z → 1983-12-16T06:16:06Z" }, { "step": "kaala", "text": "Sunrise is at 06:35 on the 15th and 06:36 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 15th and is on the 16th.", "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 9025 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Mashhad, 1983: Friday 16 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": "1983-12-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-16", "confidence": "determinate" } ], "quote": "In Mashhad, Mokṣadā Ekādaśī 1983 falls on Friday 16 December. Ekādaśī runs from 09:06 on Thu 15 Dec to 09:46 on Fri 16 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-12-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/mashhad/festivals/1983/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4607, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1983-12-16T09:46:06+03:30", "utc": "1983-12-16T06:16:06Z", "ms": 440403365640.10297 }, "end": { "local": "1983-12-17T09:42:08+03:30", "utc": "1983-12-17T06:12:08Z", "ms": 440489527702.1681 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-16T09:46:06+03:30", "utc": "1983-12-16T06:16:06Z", "ms": 440403365640.10297 }, "end": { "local": "1983-12-17T09:42:08+03:30", "utc": "1983-12-17T06:12:08Z", "ms": 440489527702.1681 } }, "kaala": "madhyahna", "days": [ { "local_date": "1983-12-16", "window": { "start": { "local": "1983-12-16T11:02:52+03:30", "utc": "1983-12-16T07:32:52Z", "ms": 440407972456.7367 }, "end": { "local": "1983-12-16T11:50:52+03:30", "utc": "1983-12-16T08:20:52Z", "ms": 440410852456.7367 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1983-12-17", "window": { "start": { "local": "1983-12-17T11:03:22+03:30", "utc": "1983-12-17T07:33:22Z", "ms": 440494401896.64624 }, "end": { "local": "1983-12-17T11:51:22+03:30", "utc": "1983-12-17T08:21:22Z", "ms": 440497281896.64624 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 09:46 on Fri 16 Dec to 09:42 on Sat 17 Dec.", "fact": "1983-12-16T06:16:06Z → 1983-12-17T06:12:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:03–11:51 on the 16th, 11:03–11:51 on the 17th.", "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 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4607 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Mashhad, 1983: Friday 16 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": "1983-12-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-16", "confidence": "determinate" } ], "quote": "In Mashhad, Akhaṇḍa Dvādaśī 1983 falls on Friday 16 December. Dvādaśī runs from 09:46 on Fri 16 Dec to 09:42 on Sat 17 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/pradosha-vrata?on=1983-12-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23752, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-12-17T09:42:08+03:30", "utc": "1983-12-17T06:12:08Z", "ms": 440489527702.1681 }, "end": { "local": "1983-12-18T08:55:04+03:30", "utc": "1983-12-18T05:25:04Z", "ms": 440573104118.9747 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-17T09:42:08+03:30", "utc": "1983-12-17T06:12:08Z", "ms": 440489527702.1681 }, "end": { "local": "1983-12-18T08:55:04+03:30", "utc": "1983-12-18T05:25:04Z", "ms": 440573104118.9747 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-12-17", "window": { "start": { "local": "1983-12-17T16:17:59+03:30", "utc": "1983-12-17T12:47:59Z", "ms": 440513279273.8827 }, "end": { "local": "1983-12-17T18:12:34+03:30", "utc": "1983-12-17T14:42:34Z", "ms": 440520154296.13525 } }, "covered_min": 115, "window_min": 115, "qualifies": true }, { "local_date": "1983-12-18", "window": { "start": { "local": "1983-12-18T16:18:21+03:30", "utc": "1983-12-18T12:48:21Z", "ms": 440599701125.42126 }, "end": { "local": "1983-12-18T18:12:58+03:30", "utc": "1983-12-18T14:42:58Z", "ms": 440606578021.123 } }, "covered_min": 0, "window_min": 115, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:42 on Sat 17 Dec to 08:55 on Sun 18 Dec.", "fact": "1983-12-17T06:12:08Z → 1983-12-18T05:25:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:18–18:13 on the 17th, 16:18–18:13 on the 18th.", "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 17th and 0 of 115 on the 18th.", "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 23752 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Mashhad, 1983: Saturday 17 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": "1983-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-17", "confidence": "determinate" } ], "quote": "In Mashhad, Śukla Pradoṣa Vrata 1983 falls on Saturday 17 December. Trayodaśī runs from 09:42 on Sat 17 Dec to 08:55 on Sun 18 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-12-17", "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/1983/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31783, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1983-12-19T07:29:02+03:30", "utc": "1983-12-19T03:59:02Z", "ms": 440654342045.9082 }, "end": { "local": "1983-12-20T05:30:16+03:30", "utc": "1983-12-20T02:00:16Z", "ms": 440733615804.01776 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-19T07:29:02+03:30", "utc": "1983-12-19T03:59:02Z", "ms": 440654342045.9082 }, "end": { "local": "1983-12-20T05:30:16+03:30", "utc": "1983-12-20T02:00:16Z", "ms": 440733615804.01776 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-12-19", "window": { "start": { "local": "1983-12-19T16:18:45+03:30", "utc": "1983-12-19T12:48:45Z", "ms": 440686124829.0606 }, "end": { "local": "1983-12-19T18:13:23+03:30", "utc": "1983-12-19T14:43:23Z", "ms": 440693003144.0627 } }, "covered_min": 115, "window_min": 115, "qualifies": true }, { "local_date": "1983-12-20", "window": { "start": { "local": "1983-12-20T16:19:10+03:30", "utc": "1983-12-20T12:49:10Z", "ms": 440772550360.8479 }, "end": { "local": "1983-12-20T18:13:50+03:30", "utc": "1983-12-20T14:43:50Z", "ms": 440779429639.7517 } }, "covered_min": 0, "window_min": 115, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:29 on Mon 19 Dec to 05:30 on Tue 20 Dec.", "fact": "1983-12-19T03:59:02Z → 1983-12-20T02:00:16Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:19–18:13 on the 19th, 16:19–18:14 on the 20th.", "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 19th and 0 of 115 on the 20th.", "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 31783 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Mashhad, 1983: Monday 19 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": "1983-12-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-19", "confidence": "determinate" } ], "quote": "In Mashhad, Dattātreyotpatti (Datta Jayanti) 1983 falls on Monday 19 December. Pūrṇimā runs from 07:29 on Mon 19 Dec to 05:30 on Tue 20 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/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/1983/sankashta-chaturthi?on=1983-12-22", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-22", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 4705, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1983-12-22T21:35:47+03:30", "utc": "1983-12-22T18:05:47Z", "ms": 440964346885.6374 }, "end": { "local": "1983-12-23T18:45:34+03:30", "utc": "1983-12-23T15:15:34Z", "ms": 441040534172.6774 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-22T21:35:47+03:30", "utc": "1983-12-22T18:05:47Z", "ms": 440964346885.6374 }, "end": { "local": "1983-12-23T18:45:34+03:30", "utc": "1983-12-23T15:15:34Z", "ms": 441040534172.6774 } }, "kaala": "moonrise", "days": [ { "local_date": "1983-12-22", "window": { "start": { "local": "1983-12-22T18:51:28+03:30", "utc": "1983-12-22T15:21:28Z", "ms": 440954488287.9772 }, "end": { "local": "1983-12-22T18:51:28+03:30", "utc": "1983-12-22T15:21:28Z", "ms": 440954488287.9772 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-12-23", "window": { "start": { "local": "1983-12-23T20:03:59+03:30", "utc": "1983-12-23T16:33:59Z", "ms": 441045239434.4245 }, "end": { "local": "1983-12-23T20:03:59+03:30", "utc": "1983-12-23T16:33:59Z", "ms": 441045239434.4245 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:36 on Thu 22 Dec to 18:46 on Fri 23 Dec.", "fact": "1983-12-22T18:05:47Z → 1983-12-23T15:15:34Z" }, { "step": "kaala", "text": "Moonrise is at 18:51 on the 22nd and 20:04 on the 23rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 22nd and is not on the 23rd.", "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 4705 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Mashhad, 1983: Thursday 22 December.", "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": "1983-12-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-22", "confidence": "boundary" } ], "quote": "In Mashhad, Saṅkaṣṭa Caturthī 1983 falls on Thursday 22 December. Caturthī runs from 21:36 on Thu 22 Dec to 18:46 on Fri 23 Dec, and is current at moonrise on neither day.", "cite": "https://ahargana.org/mashhad/festivals/1983/sankashta-chaturthi?on=1983-12-22", "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/1983/ekadashi?on=1983-12-29", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 410, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1983-12-29T07:07:48+03:30", "utc": "1983-12-29T03:37:48Z", "ms": 441517067696.7921 }, "end": { "local": "1983-12-30T06:35:53+03:30", "utc": "1983-12-30T03:05:53Z", "ms": 441601553103.5152 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-29T07:07:48+03:30", "utc": "1983-12-29T03:37:48Z", "ms": 441517067696.7921 }, "end": { "local": "1983-12-30T06:35:53+03:30", "utc": "1983-12-30T03:05:53Z", "ms": 441601553103.5152 } }, "kaala": "sunrise", "days": [ { "local_date": "1983-12-29", "window": { "start": { "local": "1983-12-29T06:42:26+03:30", "utc": "1983-12-29T03:12:26Z", "ms": 441515546196.5046 }, "end": { "local": "1983-12-29T06:42:26+03:30", "utc": "1983-12-29T03:12:26Z", "ms": 441515546196.5046 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1983-12-30", "window": { "start": { "local": "1983-12-30T06:42:43+03:30", "utc": "1983-12-30T03:12:43Z", "ms": 441601963312.3637 }, "end": { "local": "1983-12-30T06:42:43+03:30", "utc": "1983-12-30T03:12:43Z", "ms": 441601963312.3637 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:08 on Thu 29 Dec to 06:36 on Fri 30 Dec.", "fact": "1983-12-29T03:37:48Z → 1983-12-30T03:05:53Z" }, { "step": "kaala", "text": "Sunrise is at 06:42 on the 29th and 06:43 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 29th and is not on the 30th.", "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 410 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Mashhad, 1983: Thursday 29 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": "1983-12-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-29", "confidence": "determinate" } ], "quote": "In Mashhad, Saphalā Ekādaśī 1983 falls on Thursday 29 December. Ekādaśī runs from 07:08 on Thu 29 Dec to 06:36 on Fri 30 Dec, and is current at sunrise on neither day.", "cite": "https://ahargana.org/mashhad/festivals/1983/ekadashi?on=1983-12-29", "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/1983/pradosha-vrata?on=1983-12-31", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "124665", "year": 1983, "local_date": "1983-12-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34576, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1983-12-31T06:30:11+03:30", "utc": "1983-12-31T03:00:11Z", "ms": 441687610691.6973 }, "end": { "local": "1984-01-01T06:50:12+03:30", "utc": "1984-01-01T03:20:12Z", "ms": 441775212029.68256 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1983-12-31T06:30:11+03:30", "utc": "1983-12-31T03:00:11Z", "ms": 441687610691.6973 }, "end": { "local": "1984-01-01T06:50:12+03:30", "utc": "1984-01-01T03:20:12Z", "ms": 441775212029.68256 } }, "kaala": "pradosha", "days": [ { "local_date": "1983-12-31", "window": { "start": { "local": "1983-12-31T16:25:43+03:30", "utc": "1983-12-31T12:55:43Z", "ms": 441723343410.63135 }, "end": { "local": "1983-12-31T18:20:03+03:30", "utc": "1983-12-31T14:50:03Z", "ms": 441730203208.67676 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "1984-01-01", "window": { "start": { "local": "1984-01-01T16:26:28+03:30", "utc": "1984-01-01T12:56:28Z", "ms": 441809788358.5144 }, "end": { "local": "1984-01-01T18:20:44+03:30", "utc": "1984-01-01T14:50:44Z", "ms": 441816643686.52026 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:30 on Sat 31 Dec to 06:50 on Sun 1 Jan.", "fact": "1983-12-31T03:00:11Z → 1984-01-01T03:20:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 16:26–18:20 on the 31st, 16:26–18:21 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 114 of 114 minutes on the 31st and 0 of 114 on the 1st.", "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 34576 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Mashhad, 1983: Saturday 31 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": "1983-12-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1983-12-31", "confidence": "determinate" } ], "quote": "In Mashhad, Kṛṣṇa Pradoṣa Vrata 1983 falls on Saturday 31 December. Trayodaśī runs from 06:30 on Sat 31 Dec to 06:50 on Sun 1 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/mashhad/festivals/1983/pradosha-vrata?on=1983-12-31", "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" } }