{ "id": "/qingyang/festivals/1937", "place": { "id": "12359313", "slug": "qingyang", "name": "Qingyang", "region": "Gansu, China", "country": "CN", "lat": 35.70976, "lon": 107.64455, "elevation_m": 1427, "tz": "Asia/Shanghai" }, "year": 1937, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/qingyang/festivals/1937/ekadashi?on=1937-01-08", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31571, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-01-07T16:46:29+08:00", "utc": "1937-01-07T08:46:29Z", "ms": -1040829211106.9761 }, "end": { "local": "1937-01-08T19:16:51+08:00", "utc": "1937-01-08T11:16:51Z", "ms": -1040733789258.2914 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-07T16:46:29+08:00", "utc": "1937-01-07T08:46:29Z", "ms": -1040829211106.9761 }, "end": { "local": "1937-01-08T19:16:51+08:00", "utc": "1937-01-08T11:16:51Z", "ms": -1040733789258.2914 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-01-07", "window": { "start": { "local": "1937-01-07T08:00:18+08:00", "utc": "1937-01-07T00:00:18Z", "ms": -1040860782217.7767 }, "end": { "local": "1937-01-07T08:00:18+08:00", "utc": "1937-01-07T00:00:18Z", "ms": -1040860782217.7767 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-01-08", "window": { "start": { "local": "1937-01-08T08:00:17+08:00", "utc": "1937-01-08T00:00:17Z", "ms": -1040774382603.1426 }, "end": { "local": "1937-01-08T08:00:17+08:00", "utc": "1937-01-08T00:00:17Z", "ms": -1040774382603.1426 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:46 on Thu 7 Jan to 19:17 on Fri 8 Jan.", "fact": "1937-01-07T08:46:29Z → 1937-01-08T11:16:51Z" }, { "step": "kaala", "text": "Sunrise is at 08:00 on the 7th and 08:00 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 31571 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Qingyang, 1937: Friday 8 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": "1937-01-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-08", "confidence": "determinate" } ], "quote": "In Qingyang, Saphalā Ekādaśī 1937 falls on Friday 8 January. Ekādaśī runs from 16:46 on Thu 7 Jan to 19:17 on Fri 8 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-01-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-01-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6034, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-01-09T21:26:25+08:00", "utc": "1937-01-09T13:26:25Z", "ms": -1040639615395.2928 }, "end": { "local": "1937-01-10T23:06:57+08:00", "utc": "1937-01-10T15:06:57Z", "ms": -1040547183032.918 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-09T21:26:25+08:00", "utc": "1937-01-09T13:26:25Z", "ms": -1040639615395.2928 }, "end": { "local": "1937-01-10T23:06:57+08:00", "utc": "1937-01-10T15:06:57Z", "ms": -1040547183032.918 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-01-09", "window": { "start": { "local": "1937-01-09T17:52:52+08:00", "utc": "1937-01-09T09:52:52Z", "ms": -1040652427832.1176 }, "end": { "local": "1937-01-09T19:45:51+08:00", "utc": "1937-01-09T11:45:51Z", "ms": -1040645649351.2466 } }, "covered_min": 0, "window_min": 113, "qualifies": false }, { "local_date": "1937-01-10", "window": { "start": { "local": "1937-01-10T17:53:47+08:00", "utc": "1937-01-10T09:53:47Z", "ms": -1040565973124.429 }, "end": { "local": "1937-01-10T19:46:37+08:00", "utc": "1937-01-10T11:46:37Z", "ms": -1040559202770.1973 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:26 on Sat 9 Jan to 23:07 on Sun 10 Jan.", "fact": "1937-01-09T13:26:25Z → 1937-01-10T15:06:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:53–19:46 on the 9th, 17:54–19:47 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 113 minutes on the 9th and 113 of 113 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 6034 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Sunday 10 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": "1937-01-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-10", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Sunday 10 January. Trayodaśī runs from 21:26 on Sat 9 Jan to 23:07 on Sun 10 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-01-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-01-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1154, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-01-10T23:06:57+08:00", "utc": "1937-01-10T15:06:57Z", "ms": -1040547183032.918 }, "end": { "local": "1937-01-12T00:14:06+08:00", "utc": "1937-01-11T16:14:06Z", "ms": -1040456754138.9697 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-10T23:06:57+08:00", "utc": "1937-01-10T15:06:57Z", "ms": -1040547183032.918 }, "end": { "local": "1937-01-12T00:14:06+08:00", "utc": "1937-01-11T16:14:06Z", "ms": -1040456754138.9697 } }, "kaala": "nishita", "days": [ { "local_date": "1937-01-10", "window": { "start": { "local": "1937-01-11T00:32:56+08:00", "utc": "1937-01-10T16:32:56Z", "ms": -1040542024296.0599 }, "end": { "local": "1937-01-11T01:20:56+08:00", "utc": "1937-01-10T17:20:56Z", "ms": -1040539144296.0599 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-01-11", "window": { "start": { "local": "1937-01-12T00:33:19+08:00", "utc": "1937-01-11T16:33:19Z", "ms": -1040455600618.9519 }, "end": { "local": "1937-01-12T01:21:19+08:00", "utc": "1937-01-11T17:21:19Z", "ms": -1040452720618.9519 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:07 on Sun 10 Jan to 00:14 on Tue 12 Jan.", "fact": "1937-01-10T15:06:57Z → 1937-01-11T16:14:06Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:33–01:21 on the 10th, 00:33–01:21 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1154 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Sunday 10 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": "1937-01-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-10", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Sunday 10 January. Caturdaśī runs from 23:07 on Sun 10 Jan to 00:14 on Tue 12 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-01-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13385, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-02-12T10:36:30+08:00", "utc": "1937-02-12T02:36:30Z", "ms": -1037741009866.7465 } }, "span": { "of": "transit", "start": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 } }, "kaala": "sunset-day", "days": [ { "local_date": "1937-01-13", "window": { "start": { "local": "1937-01-12T17:55:39+08:00", "utc": "1937-01-12T09:55:39Z", "ms": -1040393061232.0941 }, "end": { "local": "1937-01-13T17:56:36+08:00", "utc": "1937-01-13T09:56:36Z", "ms": -1040306604155.3604 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1937-01-14", "window": { "start": { "local": "1937-01-13T17:56:36+08:00", "utc": "1937-01-13T09:56:36Z", "ms": -1040306604155.3604 }, "end": { "local": "1937-01-14T17:57:34+08:00", "utc": "1937-01-14T09:57:34Z", "ms": -1040220146396.7003 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1937-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 21:40 on Wed 13 Jan.", "fact": "1937-01-13T13:39:41Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:57, and the day of the 14th ends at 17:58.", "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 13385 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Thursday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Qingyang, 1937: Wednesday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "bhogi", "follows": { "festival": "pongal", "days": -1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1937-01-12", "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": "1937-01-12", "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 Qingyang, Bhogi 1937 falls on Wednesday 13 January. It is kept the day before Pongal, which falls on Thursday 14 January. The Sun enters Makara at 21:40 on Wed 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from midnight, or counted from sunrise, as in Orissa, it is 12 January.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8419, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-02-12T10:36:30+08:00", "utc": "1937-02-12T02:36:30Z", "ms": -1037741009866.7465 } }, "span": { "of": "transit", "start": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 } }, "kaala": "civil-day", "days": [ { "local_date": "1937-01-13", "window": { "start": { "local": "1937-01-13T00:00:00+08:00", "utc": "1937-01-12T16:00:00Z", "ms": -1040371200000 }, "end": { "local": "1937-01-14T00:00:00+08:00", "utc": "1937-01-13T16:00:00Z", "ms": -1040284800000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "1937-01-14", "window": { "start": { "local": "1937-01-14T00:00:00+08:00", "utc": "1937-01-13T16:00:00Z", "ms": -1040284800000 }, "end": { "local": "1937-01-15T00:00:00+08:00", "utc": "1937-01-14T16:00:00Z", "ms": -1040198400000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 21:40 on Wed 13 Jan.", "fact": "1937-01-13T13:39:41Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Qingyang.", "fact": "civil-day: midnight-to-midnight · Asia/Shanghai" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 13th, not the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 8419 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Qingyang, 1937: Wednesday 13 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": "1937-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1937-01-13", "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." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1937-01-14", "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 Qingyang, Makara Saṅkrānti 1937 falls on Wednesday 13 January. The Sun enters Makara at 21:40 on Wed 13 Jan, and the rule counts the day from midnight. By the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 14 January.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13385, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-02-12T10:36:30+08:00", "utc": "1937-02-12T02:36:30Z", "ms": -1037741009866.7465 } }, "span": { "of": "transit", "start": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 } }, "kaala": "sunset-day", "days": [ { "local_date": "1937-01-13", "window": { "start": { "local": "1937-01-12T17:55:39+08:00", "utc": "1937-01-12T09:55:39Z", "ms": -1040393061232.0941 }, "end": { "local": "1937-01-13T17:56:36+08:00", "utc": "1937-01-13T09:56:36Z", "ms": -1040306604155.3604 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1937-01-14", "window": { "start": { "local": "1937-01-13T17:56:36+08:00", "utc": "1937-01-13T09:56:36Z", "ms": -1040306604155.3604 }, "end": { "local": "1937-01-14T17:57:34+08:00", "utc": "1937-01-14T09:57:34Z", "ms": -1040220146396.7003 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 21:40 on Wed 13 Jan.", "fact": "1937-01-13T13:39:41Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:57, and the day of the 14th ends at 17:58.", "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 13385 s" }, { "step": "ruling", "text": "Pongal, Qingyang, 1937: Thursday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "pongal", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.", "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1937-01-13", "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": "1937-01-13", "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 Qingyang, Pongal 1937 falls on Thursday 14 January. The Sun enters Makara at 21:40 on Wed 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from midnight, or counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13385, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-02-12T10:36:30+08:00", "utc": "1937-02-12T02:36:30Z", "ms": -1037741009866.7465 } }, "span": { "of": "transit", "start": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 }, "end": { "local": "1937-01-13T21:39:41+08:00", "utc": "1937-01-13T13:39:41Z", "ms": -1040293219441.0902 } }, "kaala": "sunset-day", "days": [ { "local_date": "1937-01-13", "window": { "start": { "local": "1937-01-12T17:55:39+08:00", "utc": "1937-01-12T09:55:39Z", "ms": -1040393061232.0941 }, "end": { "local": "1937-01-13T17:56:36+08:00", "utc": "1937-01-13T09:56:36Z", "ms": -1040306604155.3604 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1937-01-14", "window": { "start": { "local": "1937-01-13T17:56:36+08:00", "utc": "1937-01-13T09:56:36Z", "ms": -1040306604155.3604 }, "end": { "local": "1937-01-14T17:57:34+08:00", "utc": "1937-01-14T09:57:34Z", "ms": -1040220146396.7003 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1937-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 21:40 on Wed 13 Jan.", "fact": "1937-01-13T13:39:41Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:57, and the day of the 14th ends at 17:58.", "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 13385 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Thursday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Qingyang, 1937: Friday 15 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "mattu-pongal", "follows": { "festival": "pongal", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1937-01-14", "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": "1937-01-14", "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 Qingyang, Mattu Pongal 1937 falls on Friday 15 January. It is kept the day after Pongal, which falls on Thursday 14 January. The Sun enters Makara at 21:40 on Wed 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from midnight, or counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-01-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31602, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-01-15T23:24:22+08:00", "utc": "1937-01-15T15:24:22Z", "ms": -1040114137577.6195 }, "end": { "local": "1937-01-16T22:09:59+08:00", "utc": "1937-01-16T14:09:59Z", "ms": -1040032200843.5133 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-15T23:24:22+08:00", "utc": "1937-01-15T15:24:22Z", "ms": -1040114137577.6195 }, "end": { "local": "1937-01-16T22:09:59+08:00", "utc": "1937-01-16T14:09:59Z", "ms": -1040032200843.5133 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-01-15", "window": { "start": { "local": "1937-01-15T12:34:56+08:00", "utc": "1937-01-15T04:34:56Z", "ms": -1040153103990.1442 }, "end": { "local": "1937-01-15T13:22:56+08:00", "utc": "1937-01-15T05:22:56Z", "ms": -1040150223990.1442 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-01-16", "window": { "start": { "local": "1937-01-16T12:35:17+08:00", "utc": "1937-01-16T04:35:17Z", "ms": -1040066682505.5391 }, "end": { "local": "1937-01-16T13:23:17+08:00", "utc": "1937-01-16T05:23:17Z", "ms": -1040063802505.5391 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:24 on Fri 15 Jan to 22:10 on Sat 16 Jan.", "fact": "1937-01-15T15:24:22Z → 1937-01-16T14:09:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 15th, 12:35–13:23 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 31602 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1937: Saturday 16 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": "1937-01-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-16", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1937 falls on Saturday 16 January. Caturthī runs from 23:24 on Fri 15 Jan to 22:10 on Sat 16 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-01-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-01-23", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2262, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-01-22T10:44:09+08:00", "utc": "1937-01-22T02:44:09Z", "ms": -1039554951198.5535 }, "end": { "local": "1937-01-23T08:34:01+08:00", "utc": "1937-01-23T00:34:01Z", "ms": -1039476359134.946 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-22T10:44:09+08:00", "utc": "1937-01-22T02:44:09Z", "ms": -1039554951198.5535 }, "end": { "local": "1937-01-23T08:34:01+08:00", "utc": "1937-01-23T00:34:01Z", "ms": -1039476359134.946 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-01-22", "window": { "start": { "local": "1937-01-22T07:56:48+08:00", "utc": "1937-01-21T23:56:48Z", "ms": -1039564992177.6526 }, "end": { "local": "1937-01-22T07:56:48+08:00", "utc": "1937-01-21T23:56:48Z", "ms": -1039564992177.6526 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-01-23", "window": { "start": { "local": "1937-01-23T07:56:19+08:00", "utc": "1937-01-22T23:56:19Z", "ms": -1039478621444.7693 }, "end": { "local": "1937-01-23T07:56:19+08:00", "utc": "1937-01-22T23:56:19Z", "ms": -1039478621444.7693 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:44 on Fri 22 Jan to 08:34 on Sat 23 Jan.", "fact": "1937-01-22T02:44:09Z → 1937-01-23T00:34:01Z" }, { "step": "kaala", "text": "Sunrise is at 07:57 on the 22nd and 07:56 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 22nd and is 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 2262 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Qingyang, 1937: Saturday 23 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": "1937-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-23", "confidence": "determinate" } ], "quote": "In Qingyang, Putradā Ekādaśī 1937 falls on Saturday 23 January. Ekādaśī runs from 10:44 on Fri 22 Jan to 08:34 on Sat 23 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-01-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-01-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30595, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-01-24T06:27:06+08:00", "utc": "1937-01-23T22:27:06Z", "ms": -1039397574267.2599 }, "end": { "local": "1937-01-25T04:27:54+08:00", "utc": "1937-01-24T20:27:54Z", "ms": -1039318326126.6244 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-01-24T06:27:06+08:00", "utc": "1937-01-23T22:27:06Z", "ms": -1039397574267.2599 }, "end": { "local": "1937-01-25T04:27:54+08:00", "utc": "1937-01-24T20:27:54Z", "ms": -1039318326126.6244 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-01-23", "window": { "start": { "local": "1937-01-23T18:06:36+08:00", "utc": "1937-01-23T10:06:36Z", "ms": -1039442004220.0762 }, "end": { "local": "1937-01-23T19:57:09+08:00", "utc": "1937-01-23T11:57:09Z", "ms": -1039435370661.9094 } }, "covered_min": 0, "window_min": 111, "qualifies": false }, { "local_date": "1937-01-24", "window": { "start": { "local": "1937-01-24T18:07:38+08:00", "utc": "1937-01-24T10:07:38Z", "ms": -1039355542325.4788 }, "end": { "local": "1937-01-24T19:57:59+08:00", "utc": "1937-01-24T11:57:59Z", "ms": -1039348921404.8497 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:27 on Sun 24 Jan to 04:28 on Mon 25 Jan.", "fact": "1937-01-23T22:27:06Z → 1937-01-24T20:27:54Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:57 on the 23rd, 18:08–19:58 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 111 minutes on the 23rd and 110 of 110 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 30595 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Sunday 24 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": "1937-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-24", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Sunday 24 January. Trayodaśī runs from 06:27 on Sun 24 Jan to 04:28 on Mon 25 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-01-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-01-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9580, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-01-29T23:55:18+08:00", "utc": "1937-01-29T15:55:18Z", "ms": -1038902681762.6796 }, "end": { "local": "1937-01-31T00:44:36+08:00", "utc": "1937-01-30T16:44:36Z", "ms": -1038813324432.5612 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-01-29T23:55:18+08:00", "utc": "1937-01-29T15:55:18Z", "ms": -1038902681762.6796 }, "end": { "local": "1937-01-31T00:44:36+08:00", "utc": "1937-01-30T16:44:36Z", "ms": -1038813324432.5612 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-01-29", "window": { "start": { "local": "1937-01-29T21:05:55+08:00", "utc": "1937-01-29T13:05:55Z", "ms": -1038912845123.5973 }, "end": { "local": "1937-01-29T21:05:55+08:00", "utc": "1937-01-29T13:05:55Z", "ms": -1038912845123.5973 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-01-30", "window": { "start": { "local": "1937-01-30T22:04:55+08:00", "utc": "1937-01-30T14:04:55Z", "ms": -1038822904555.0758 }, "end": { "local": "1937-01-30T22:04:55+08:00", "utc": "1937-01-30T14:04:55Z", "ms": -1038822904555.0758 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:55 on Fri 29 Jan to 00:45 on Sun 31 Jan.", "fact": "1937-01-29T15:55:18Z → 1937-01-30T16:44:36Z" }, { "step": "kaala", "text": "Moonrise is at 21:06 on the 29th and 22:05 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 9580 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Saturday 30 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": "1937-01-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-01-30", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Saturday 30 January. Caturthī runs from 23:55 on Fri 29 Jan to 00:45 on Sun 31 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-01-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-02-07", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23035, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-02-06T14:10:25+08:00", "utc": "1937-02-06T06:10:25Z", "ms": -1038246575176.2042 }, "end": { "local": "1937-02-07T15:50:29+08:00", "utc": "1937-02-07T07:50:29Z", "ms": -1038154171055.7355 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-06T14:10:25+08:00", "utc": "1937-02-06T06:10:25Z", "ms": -1038246575176.2042 }, "end": { "local": "1937-02-07T15:50:29+08:00", "utc": "1937-02-07T07:50:29Z", "ms": -1038154171055.7355 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-02-06", "window": { "start": { "local": "1937-02-06T07:46:29+08:00", "utc": "1937-02-05T23:46:29Z", "ms": -1038269610502.4636 }, "end": { "local": "1937-02-06T07:46:29+08:00", "utc": "1937-02-05T23:46:29Z", "ms": -1038269610502.4636 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-02-07", "window": { "start": { "local": "1937-02-07T07:45:36+08:00", "utc": "1937-02-06T23:45:36Z", "ms": -1038183264263.9185 }, "end": { "local": "1937-02-07T07:45:36+08:00", "utc": "1937-02-06T23:45:36Z", "ms": -1038183264263.9185 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:10 on Sat 6 Feb to 15:50 on Sun 7 Feb.", "fact": "1937-02-06T06:10:25Z → 1937-02-07T07:50:29Z" }, { "step": "kaala", "text": "Sunrise is at 07:46 on the 6th and 07:46 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 23035 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Qingyang, 1937: Sunday 7 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": "1937-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-07", "confidence": "determinate" } ], "quote": "In Qingyang, Ṣaṭtilā Ekādaśī 1937 falls on Sunday 7 February. Ekādaśī runs from 14:10 on Sat 6 Feb to 15:50 on Sun 7 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-02-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-02-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4740, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-02-08T16:49:43+08:00", "utc": "1937-02-08T08:49:43Z", "ms": -1038064216788.4823 }, "end": { "local": "1937-02-09T17:05:14+08:00", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-08T16:49:43+08:00", "utc": "1937-02-08T08:49:43Z", "ms": -1038064216788.4823 }, "end": { "local": "1937-02-09T17:05:14+08:00", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-02-08", "window": { "start": { "local": "1937-02-08T18:23:13+08:00", "utc": "1937-02-08T10:23:13Z", "ms": -1038058607386.2832 }, "end": { "local": "1937-02-08T20:09:57+08:00", "utc": "1937-02-08T12:09:57Z", "ms": -1038052203196.5837 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1937-02-09", "window": { "start": { "local": "1937-02-09T18:24:14+08:00", "utc": "1937-02-09T10:24:14Z", "ms": -1037972145809.8019 }, "end": { "local": "1937-02-09T20:10:42+08:00", "utc": "1937-02-09T12:10:42Z", "ms": -1037965757547.5712 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:50 on Mon 8 Feb to 17:05 on Tue 9 Feb.", "fact": "1937-02-08T08:49:43Z → 1937-02-09T09:05:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:23–20:10 on the 8th, 18:24–20:11 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 107 of 107 minutes on the 8th and 0 of 106 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 4740 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Monday 8 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": "1937-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-08", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Monday 8 February. Trayodaśī runs from 16:50 on Mon 8 Feb to 17:05 on Tue 9 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-02-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-02-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27256, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-02-09T17:05:14+08:00", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 }, "end": { "local": "1937-02-10T16:38:30+08:00", "utc": "1937-02-10T08:38:30Z", "ms": -1037892089963.9225 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-09T17:05:14+08:00", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 }, "end": { "local": "1937-02-10T16:38:30+08:00", "utc": "1937-02-10T08:38:30Z", "ms": -1037892089963.9225 } }, "kaala": "nishita", "days": [ { "local_date": "1937-02-09", "window": { "start": { "local": "1937-02-10T00:39:30+08:00", "utc": "1937-02-09T16:39:30Z", "ms": -1037949629826.4365 }, "end": { "local": "1937-02-10T01:27:30+08:00", "utc": "1937-02-09T17:27:30Z", "ms": -1037946749826.4365 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-02-10", "window": { "start": { "local": "1937-02-11T00:39:31+08:00", "utc": "1937-02-10T16:39:31Z", "ms": -1037863228748.5544 }, "end": { "local": "1937-02-11T01:27:31+08:00", "utc": "1937-02-10T17:27:31Z", "ms": -1037860348748.5544 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:05 on Tue 9 Feb to 16:39 on Wed 10 Feb.", "fact": "1937-02-09T09:05:14Z → 1937-02-10T08:38:30Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:40–01:28 on the 9th, 00:40–01:28 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 27256 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Tuesday 9 February.", "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": "1937-02-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-09", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Tuesday 9 February. Caturdaśī runs from 17:05 on Tue 9 Feb to 16:39 on Wed 10 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-02-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32144, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-02-09T17:05:14+08:00", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 }, "end": { "local": "1937-02-10T16:38:30+08:00", "utc": "1937-02-10T08:38:30Z", "ms": -1037892089963.9225 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-09T17:05:14+08:00", "utc": "1937-02-09T09:05:14Z", "ms": -1037976886129.197 }, "end": { "local": "1937-02-10T16:38:30+08:00", "utc": "1937-02-10T08:38:30Z", "ms": -1037892089963.9225 } }, "kaala": "arunodaya", "days": [ { "local_date": "1937-02-09", "window": { "start": { "local": "1937-02-09T05:57:00+08:00", "utc": "1937-02-08T21:57:00Z", "ms": -1038016980153.237 }, "end": { "local": "1937-02-09T07:43:44+08:00", "utc": "1937-02-08T23:43:44Z", "ms": -1038010575963.5376 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1937-02-10", "window": { "start": { "local": "1937-02-10T05:56:18+08:00", "utc": "1937-02-09T21:56:18Z", "ms": -1037930622105.302 }, "end": { "local": "1937-02-10T07:42:46+08:00", "utc": "1937-02-09T23:42:46Z", "ms": -1037924233843.0713 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:05 on Tue 9 Feb to 16:39 on Wed 10 Feb.", "fact": "1937-02-09T09:05:14Z → 1937-02-10T08:38:30Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:57–07:44 on the 9th, 05:56–07:43 on the 10th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 107 minutes on the 9th and 106 of 106 on the 10th.", "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 32144 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Qingyang, 1937: Wednesday 10 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": "1937-02-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-10", "confidence": "determinate" } ], "quote": "In Qingyang, Yama Tarpaṇa 1937 falls on Wednesday 10 February. Caturdaśī runs from 17:05 on Tue 9 Feb to 16:39 on Wed 10 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10187, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-02-14T09:50:13+08:00", "utc": "1937-02-14T01:50:13Z", "ms": -1037570987408.6925 }, "end": { "local": "1937-02-15T07:31:10+08:00", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-14T09:50:13+08:00", "utc": "1937-02-14T01:50:13Z", "ms": -1037570987408.6925 }, "end": { "local": "1937-02-15T07:31:10+08:00", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-02-14", "window": { "start": { "local": "1937-02-14T12:40:00+08:00", "utc": "1937-02-14T04:40:00Z", "ms": -1037560799970.73 }, "end": { "local": "1937-02-14T13:28:00+08:00", "utc": "1937-02-14T05:28:00Z", "ms": -1037557919970.73 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-02-15", "window": { "start": { "local": "1937-02-15T12:39:58+08:00", "utc": "1937-02-15T04:39:58Z", "ms": -1037474402087.9429 }, "end": { "local": "1937-02-15T13:27:58+08:00", "utc": "1937-02-15T05:27:58Z", "ms": -1037471522087.9429 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:50 on Sun 14 Feb to 07:31 on Mon 15 Feb.", "fact": "1937-02-14T01:50:13Z → 1937-02-14T23:31:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 14th, 12:40–13:28 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 10187 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Qingyang, 1937: Sunday 14 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-14", "confidence": "determinate" } ], "quote": "In Qingyang, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1937 falls on Sunday 14 February. Caturthī runs from 09:50 on Sun 14 Feb to 07:31 on Mon 15 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/ganesha-jayanti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31146, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-02-14T09:50:13+08:00", "utc": "1937-02-14T01:50:13Z", "ms": -1037570987408.6925 }, "end": { "local": "1937-02-15T07:31:10+08:00", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-14T09:50:13+08:00", "utc": "1937-02-14T01:50:13Z", "ms": -1037570987408.6925 }, "end": { "local": "1937-02-15T07:31:10+08:00", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-02-14", "window": { "start": { "local": "1937-02-14T18:29:18+08:00", "utc": "1937-02-14T10:29:18Z", "ms": -1037539841717.2568 }, "end": { "local": "1937-02-14T20:14:25+08:00", "utc": "1937-02-14T12:14:25Z", "ms": -1037533535140.7646 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "1937-02-15", "window": { "start": { "local": "1937-02-15T18:30:18+08:00", "utc": "1937-02-15T10:30:18Z", "ms": -1037453381782.3204 }, "end": { "local": "1937-02-15T20:15:08+08:00", "utc": "1937-02-15T12:15:08Z", "ms": -1037447091909.3223 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:50 on Sun 14 Feb to 07:31 on Mon 15 Feb.", "fact": "1937-02-14T01:50:13Z → 1937-02-14T23:31:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:29–20:14 on the 14th, 18:30–20:15 on the 15th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 105 of 105 minutes on the 14th and 0 of 105 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31146 s" }, { "step": "ruling", "text": "Tila Caturthī, Qingyang, 1937: Sunday 14 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-14", "confidence": "determinate" } ], "quote": "In Qingyang, Tila Caturthī 1937 falls on Sunday 14 February. Caturthī runs from 09:50 on Sun 14 Feb to 07:31 on Mon 15 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/tila-chaturthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18528, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-02-15T07:31:10+08:00", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "end": { "local": "1937-02-16T05:11:31+08:00", "utc": "1937-02-15T21:11:31Z", "ms": -1037414909164.4556 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-15T07:31:10+08:00", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "end": { "local": "1937-02-16T05:11:31+08:00", "utc": "1937-02-15T21:11:31Z", "ms": -1037414909164.4556 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-02-15", "window": { "start": { "local": "1937-02-15T12:39:58+08:00", "utc": "1937-02-15T04:39:58Z", "ms": -1037474402087.9429 }, "end": { "local": "1937-02-15T13:27:58+08:00", "utc": "1937-02-15T05:27:58Z", "ms": -1037471522087.9429 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-02-16", "window": { "start": { "local": "1937-02-16T12:39:55+08:00", "utc": "1937-02-16T04:39:55Z", "ms": -1037388004955.4968 }, "end": { "local": "1937-02-16T13:27:55+08:00", "utc": "1937-02-16T05:27:55Z", "ms": -1037385124955.4968 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 07:31 on Mon 15 Feb to 05:12 on Tue 16 Feb.", "fact": "1937-02-14T23:31:10Z → 1937-02-15T21:11:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 15th, 12:40–13:28 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 18528 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Qingyang, 1937: Monday 15 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-15", "confidence": "determinate" } ], "quote": "In Qingyang, Śrī Pañcamī 1937 falls on Monday 15 February. Pañcamī runs from 07:31 on Mon 15 Feb to 05:12 on Tue 16 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/shri-panchami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18528, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-02-15T07:31:10+08:00", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "end": { "local": "1937-02-16T05:11:31+08:00", "utc": "1937-02-15T21:11:31Z", "ms": -1037414909164.4556 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-15T07:31:10+08:00", "utc": "1937-02-14T23:31:10Z", "ms": -1037492930082.9604 }, "end": { "local": "1937-02-16T05:11:31+08:00", "utc": "1937-02-15T21:11:31Z", "ms": -1037414909164.4556 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-02-15", "window": { "start": { "local": "1937-02-15T12:39:58+08:00", "utc": "1937-02-15T04:39:58Z", "ms": -1037474402087.9429 }, "end": { "local": "1937-02-15T13:27:58+08:00", "utc": "1937-02-15T05:27:58Z", "ms": -1037471522087.9429 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-02-16", "window": { "start": { "local": "1937-02-16T12:39:55+08:00", "utc": "1937-02-16T04:39:55Z", "ms": -1037388004955.4968 }, "end": { "local": "1937-02-16T13:27:55+08:00", "utc": "1937-02-16T05:27:55Z", "ms": -1037385124955.4968 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 07:31 on Mon 15 Feb to 05:12 on Tue 16 Feb.", "fact": "1937-02-14T23:31:10Z → 1937-02-15T21:11:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 15th, 12:40–13:28 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18528 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Qingyang, 1937: Monday 15 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-15", "confidence": "determinate" } ], "quote": "In Qingyang, Vasanta Pañcamī 1937 falls on Monday 15 February. Pañcamī runs from 07:31 on Mon 15 Feb to 05:12 on Tue 16 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vasanta-panchami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10472, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-02-17T02:56:21+08:00", "utc": "1937-02-16T18:56:21Z", "ms": -1037336618978.9369 }, "end": { "local": "1937-02-18T00:49:17+08:00", "utc": "1937-02-17T16:49:17Z", "ms": -1037257843404.6296 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-17T02:56:21+08:00", "utc": "1937-02-16T18:56:21Z", "ms": -1037336618978.9369 }, "end": { "local": "1937-02-18T00:49:17+08:00", "utc": "1937-02-17T16:49:17Z", "ms": -1037257843404.6296 } }, "kaala": "arunodaya", "days": [ { "local_date": "1937-02-17", "window": { "start": { "local": "1937-02-17T05:50:53+08:00", "utc": "1937-02-16T21:50:53Z", "ms": -1037326147278.9604 }, "end": { "local": "1937-02-17T07:35:26+08:00", "utc": "1937-02-16T23:35:26Z", "ms": -1037319874217.8529 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "1937-02-18", "window": { "start": { "local": "1937-02-18T05:50:02+08:00", "utc": "1937-02-17T21:50:02Z", "ms": -1037239797957.8976 }, "end": { "local": "1937-02-18T07:34:18+08:00", "utc": "1937-02-17T23:34:18Z", "ms": -1037233541811.5173 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:56 on Wed 17 Feb to 00:49 on Thu 18 Feb.", "fact": "1937-02-16T18:56:21Z → 1937-02-17T16:49:17Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:51–07:35 on the 17th, 05:50–07:34 on the 18th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during aruṇodaya. It covers 105 of 105 minutes on the 17th and 0 of 104 on the 18th.", "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 10472 s" }, { "step": "ruling", "text": "Ratha Saptamī, Qingyang, 1937: Wednesday 17 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-17", "confidence": "determinate" } ], "quote": "In Qingyang, Ratha Saptamī 1937 falls on Wednesday 17 February. Saptamī runs from 02:56 on Wed 17 Feb to 00:49 on Thu 18 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/qingyang/festivals/1937/ratha-saptami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-02-21", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38579, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-02-20T19:34:04+08:00", "utc": "1937-02-20T11:34:04Z", "ms": -1037017555844.1626 }, "end": { "local": "1937-02-21T18:13:48+08:00", "utc": "1937-02-21T10:13:48Z", "ms": -1036935972419.1069 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-20T19:34:04+08:00", "utc": "1937-02-20T11:34:04Z", "ms": -1037017555844.1626 }, "end": { "local": "1937-02-21T18:13:48+08:00", "utc": "1937-02-21T10:13:48Z", "ms": -1036935972419.1069 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-02-20", "window": { "start": { "local": "1937-02-20T07:32:00+08:00", "utc": "1937-02-19T23:32:00Z", "ms": -1037060880202.0157 }, "end": { "local": "1937-02-20T07:32:00+08:00", "utc": "1937-02-19T23:32:00Z", "ms": -1037060880202.0157 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-02-21", "window": { "start": { "local": "1937-02-21T07:30:49+08:00", "utc": "1937-02-20T23:30:49Z", "ms": -1036974550932.7399 }, "end": { "local": "1937-02-21T07:30:49+08:00", "utc": "1937-02-20T23:30:49Z", "ms": -1036974550932.7399 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:34 on Sat 20 Feb to 18:14 on Sun 21 Feb.", "fact": "1937-02-20T11:34:04Z → 1937-02-21T10:13:48Z" }, { "step": "kaala", "text": "Sunrise is at 07:32 on the 20th and 07:31 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 38579 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Qingyang, 1937: Sunday 21 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": "1937-02-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-21", "confidence": "determinate" } ], "quote": "In Qingyang, Jayā Ekādaśī 1937 falls on Sunday 21 February. Ekādaśī runs from 19:34 on Sat 20 Feb to 18:14 on Sun 21 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-02-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13223, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-02-21T18:13:48+08:00", "utc": "1937-02-21T10:13:48Z", "ms": -1036935972419.1069 }, "end": { "local": "1937-02-22T17:07:46+08:00", "utc": "1937-02-22T09:07:46Z", "ms": -1036853534470.7754 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-21T18:13:48+08:00", "utc": "1937-02-21T10:13:48Z", "ms": -1036935972419.1069 }, "end": { "local": "1937-02-22T17:07:46+08:00", "utc": "1937-02-22T09:07:46Z", "ms": -1036853534470.7754 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-02-21", "window": { "start": { "local": "1937-02-21T12:39:30+08:00", "utc": "1937-02-21T04:39:30Z", "ms": -1036956030149.1633 }, "end": { "local": "1937-02-21T13:27:30+08:00", "utc": "1937-02-21T05:27:30Z", "ms": -1036953150149.1633 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-02-22", "window": { "start": { "local": "1937-02-22T12:39:23+08:00", "utc": "1937-02-22T04:39:23Z", "ms": -1036869637257.2688 }, "end": { "local": "1937-02-22T13:27:23+08:00", "utc": "1937-02-22T05:27:23Z", "ms": -1036866757257.2688 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 18:14 on Sun 21 Feb to 17:08 on Mon 22 Feb.", "fact": "1937-02-21T10:13:48Z → 1937-02-22T09:07:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 21st, 12:39–13:27 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 13223 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Qingyang, 1937: Monday 22 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhishma-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-22", "confidence": "determinate" } ], "quote": "In Qingyang, Bhīṣma Dvādaśī 1937 falls on Monday 22 February. Dvādaśī runs from 18:14 on Sun 21 Feb to 17:08 on Mon 22 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/bhishma-dvadashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-02-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5363, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-02-22T17:07:46+08:00", "utc": "1937-02-22T09:07:46Z", "ms": -1036853534470.7754 }, "end": { "local": "1937-02-23T16:18:18+08:00", "utc": "1937-02-23T08:18:18Z", "ms": -1036770102281.241 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-22T17:07:46+08:00", "utc": "1937-02-22T09:07:46Z", "ms": -1036853534470.7754 }, "end": { "local": "1937-02-23T16:18:18+08:00", "utc": "1937-02-23T08:18:18Z", "ms": -1036770102281.241 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-02-22", "window": { "start": { "local": "1937-02-22T18:37:08+08:00", "utc": "1937-02-22T10:37:08Z", "ms": -1036848171872.3033 }, "end": { "local": "1937-02-22T20:19:58+08:00", "utc": "1937-02-22T12:19:58Z", "ms": -1036842001662.1921 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "1937-02-23", "window": { "start": { "local": "1937-02-23T18:38:05+08:00", "utc": "1937-02-23T10:38:05Z", "ms": -1036761714733.1917 }, "end": { "local": "1937-02-23T20:20:38+08:00", "utc": "1937-02-23T12:20:38Z", "ms": -1036755561950.2704 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:08 on Mon 22 Feb to 16:18 on Tue 23 Feb.", "fact": "1937-02-22T09:07:46Z → 1937-02-23T08:18:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:37–20:20 on the 22nd, 18:38–20:21 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 103 of 103 minutes on the 22nd and 0 of 103 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 5363 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Monday 22 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": "1937-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-22", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Monday 22 February. Trayodaśī runs from 17:08 on Mon 22 Feb to 16:18 on Tue 23 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-02-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8172, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-02-24T15:48:45+08:00", "utc": "1937-02-24T07:48:45Z", "ms": -1036685475459.4958 }, "end": { "local": "1937-02-25T15:43:10+08:00", "utc": "1937-02-25T07:43:10Z", "ms": -1036599409945.692 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1937-02-24T15:48:45+08:00", "utc": "1937-02-24T07:48:45Z", "ms": -1036685475459.4958 }, "end": { "local": "1937-02-25T15:43:10+08:00", "utc": "1937-02-25T07:43:10Z", "ms": -1036599409945.692 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-02-24", "window": { "start": { "local": "1937-02-24T12:39:07+08:00", "utc": "1937-02-24T04:39:07Z", "ms": -1036696853402.4795 }, "end": { "local": "1937-02-24T13:27:07+08:00", "utc": "1937-02-24T05:27:07Z", "ms": -1036693973402.4795 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-02-25", "window": { "start": { "local": "1937-02-25T12:38:58+08:00", "utc": "1937-02-25T04:38:58Z", "ms": -1036610462400.2161 }, "end": { "local": "1937-02-25T13:26:58+08:00", "utc": "1937-02-25T05:26:58Z", "ms": -1036607582400.2161 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:49 on Wed 24 Feb to 15:43 on Thu 25 Feb.", "fact": "1937-02-24T07:48:45Z → 1937-02-25T07:43:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 24th, 12:39–13:27 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 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8172 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Qingyang, 1937: Thursday 25 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maghi-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Maghi purnima (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-25", "confidence": "determinate" } ], "quote": "In Qingyang, Māghī Pūrṇimā 1937 falls on Thursday 25 February. Pūrṇimā runs from 15:49 on Wed 24 Feb to 15:43 on Thu 25 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/maghi-purnima", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-02-28", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-02-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8390, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-02-28T18:26:50+08:00", "utc": "1937-02-28T10:26:50Z", "ms": -1036330390365.9703 }, "end": { "local": "1937-03-01T20:24:52+08:00", "utc": "1937-03-01T12:24:52Z", "ms": -1036236908461.5468 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-02-28T18:26:50+08:00", "utc": "1937-02-28T10:26:50Z", "ms": -1036330390365.9703 }, "end": { "local": "1937-03-01T20:24:52+08:00", "utc": "1937-03-01T12:24:52Z", "ms": -1036236908461.5468 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-02-28", "window": { "start": { "local": "1937-02-28T21:47:30+08:00", "utc": "1937-02-28T13:47:30Z", "ms": -1036318349822.8563 }, "end": { "local": "1937-02-28T21:47:30+08:00", "utc": "1937-02-28T13:47:30Z", "ms": -1036318349822.8563 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-03-01", "window": { "start": { "local": "1937-03-01T22:44:41+08:00", "utc": "1937-03-01T14:44:41Z", "ms": -1036228518704.7236 }, "end": { "local": "1937-03-01T22:44:41+08:00", "utc": "1937-03-01T14:44:41Z", "ms": -1036228518704.7236 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:27 on Sun 28 Feb to 20:25 on Mon 1 Mar.", "fact": "1937-02-28T10:26:50Z → 1937-03-01T12:24:52Z" }, { "step": "kaala", "text": "Moonrise is at 21:48 on the 28th and 22:45 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 28th 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 8390 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Sunday 28 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-02-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-02-28", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Sunday 28 February. Caturthī runs from 18:27 on Sun 28 Feb to 20:25 on Mon 1 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-02-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-03-09", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-03-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8008, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-03-08T09:24:57+08:00", "utc": "1937-03-08T01:24:57Z", "ms": -1035671702858.8733 }, "end": { "local": "1937-03-09T09:44:55+08:00", "utc": "1937-03-09T01:44:55Z", "ms": -1035584105389.5823 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-08T09:24:57+08:00", "utc": "1937-03-08T01:24:57Z", "ms": -1035671702858.8733 }, "end": { "local": "1937-03-09T09:44:55+08:00", "utc": "1937-03-09T01:44:55Z", "ms": -1035584105389.5823 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-03-08", "window": { "start": { "local": "1937-03-08T07:11:30+08:00", "utc": "1937-03-07T23:11:30Z", "ms": -1035679710370.3545 }, "end": { "local": "1937-03-08T07:11:30+08:00", "utc": "1937-03-07T23:11:30Z", "ms": -1035679710370.3545 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-03-09", "window": { "start": { "local": "1937-03-09T07:10:07+08:00", "utc": "1937-03-08T23:10:07Z", "ms": -1035593392728.436 }, "end": { "local": "1937-03-09T07:10:07+08:00", "utc": "1937-03-08T23:10:07Z", "ms": -1035593392728.436 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:25 on Mon 8 Mar to 09:45 on Tue 9 Mar.", "fact": "1937-03-08T01:24:57Z → 1937-03-09T01:44:55Z" }, { "step": "kaala", "text": "Sunrise is at 07:11 on the 8th and 07:10 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 8008 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Qingyang, 1937: Tuesday 9 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": "1937-03-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-09", "confidence": "determinate" } ], "quote": "In Qingyang, Vijayā Ekādaśī 1937 falls on Tuesday 9 March. Ekādaśī runs from 09:25 on Mon 8 Mar to 09:45 on Tue 9 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-03-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-03-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-03-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34623, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-03-10T09:14:42+08:00", "utc": "1937-03-10T01:14:42Z", "ms": -1035499518461.6006 }, "end": { "local": "1937-03-11T07:57:35+08:00", "utc": "1937-03-10T23:57:35Z", "ms": -1035417744724.8518 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-10T09:14:42+08:00", "utc": "1937-03-10T01:14:42Z", "ms": -1035499518461.6006 }, "end": { "local": "1937-03-11T07:57:35+08:00", "utc": "1937-03-10T23:57:35Z", "ms": -1035417744724.8518 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-03-10", "window": { "start": { "local": "1937-03-10T18:51:44+08:00", "utc": "1937-03-10T10:51:44Z", "ms": -1035464895750.503 }, "end": { "local": "1937-03-10T20:29:49+08:00", "utc": "1937-03-10T12:29:49Z", "ms": -1035459010820.3708 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "1937-03-11", "window": { "start": { "local": "1937-03-11T18:52:37+08:00", "utc": "1937-03-11T10:52:37Z", "ms": -1035378443374.851 }, "end": { "local": "1937-03-11T20:30:23+08:00", "utc": "1937-03-11T12:30:23Z", "ms": -1035372576578.915 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:15 on Wed 10 Mar to 07:58 on Thu 11 Mar.", "fact": "1937-03-10T01:14:42Z → 1937-03-10T23:57:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:30 on the 10th, 18:53–20:30 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 98 of 98 minutes on the 10th and 0 of 98 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 34623 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Wednesday 10 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": "1937-03-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-10", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Wednesday 10 March. Trayodaśī runs from 09:15 on Wed 10 Mar to 07:58 on Thu 11 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-03-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-03-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16620, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-03-11T07:57:35+08:00", "utc": "1937-03-10T23:57:35Z", "ms": -1035417744724.8518 }, "end": { "local": "1937-03-12T06:00:17+08:00", "utc": "1937-03-11T22:00:17Z", "ms": -1035338382711.5427 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-11T07:57:35+08:00", "utc": "1937-03-10T23:57:35Z", "ms": -1035417744724.8518 }, "end": { "local": "1937-03-12T06:00:17+08:00", "utc": "1937-03-11T22:00:17Z", "ms": -1035338382711.5427 } }, "kaala": "nishita", "days": [ { "local_date": "1937-03-10", "window": { "start": { "local": "1937-03-11T00:35:33+08:00", "utc": "1937-03-10T16:35:33Z", "ms": -1035444267262.5073 }, "end": { "local": "1937-03-11T01:23:33+08:00", "utc": "1937-03-10T17:23:33Z", "ms": -1035441387262.5073 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-03-11", "window": { "start": { "local": "1937-03-12T00:35:17+08:00", "utc": "1937-03-11T16:35:17Z", "ms": -1035357882890.0911 }, "end": { "local": "1937-03-12T01:23:17+08:00", "utc": "1937-03-11T17:23:17Z", "ms": -1035355002890.0911 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:58 on Thu 11 Mar to 06:00 on Fri 12 Mar.", "fact": "1937-03-10T23:57:35Z → 1937-03-11T22:00:17Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:36–01:24 on the 10th, 00:35–01:23 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. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 16620 s" }, { "step": "ruling", "text": "Mahāśivarātri, Qingyang, 1937: Thursday 11 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-03-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-11", "confidence": "determinate" } ], "quote": "In Qingyang, Mahāśivarātri 1937 falls on Thursday 11 March. Caturdaśī runs from 07:58 on Thu 11 Mar to 06:00 on Fri 12 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/maha-shivaratri", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-03-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-03-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8279, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-03-15T18:36:53+08:00", "utc": "1937-03-15T10:36:53Z", "ms": -1035033786580.2783 }, "end": { "local": "1937-03-16T15:40:36+08:00", "utc": "1937-03-16T07:40:36Z", "ms": -1034957964156.7985 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-15T18:36:53+08:00", "utc": "1937-03-15T10:36:53Z", "ms": -1035033786580.2783 }, "end": { "local": "1937-03-16T15:40:36+08:00", "utc": "1937-03-16T07:40:36Z", "ms": -1034957964156.7985 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-03-15", "window": { "start": { "local": "1937-03-15T12:34:54+08:00", "utc": "1937-03-15T04:34:54Z", "ms": -1035055505825.4105 }, "end": { "local": "1937-03-15T13:22:54+08:00", "utc": "1937-03-15T05:22:54Z", "ms": -1035052625825.4105 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-03-16", "window": { "start": { "local": "1937-03-16T12:34:37+08:00", "utc": "1937-03-16T04:34:37Z", "ms": -1034969122692.3356 }, "end": { "local": "1937-03-16T13:22:37+08:00", "utc": "1937-03-16T05:22:37Z", "ms": -1034966242692.3356 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:37 on Mon 15 Mar to 15:41 on Tue 16 Mar.", "fact": "1937-03-15T10:36:53Z → 1937-03-16T07:40:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 15th, 12:35–13:23 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 8279 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1937: Tuesday 16 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": "1937-03-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-16", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1937 falls on Tuesday 16 March. Caturthī runs from 18:37 on Mon 15 Mar to 15:41 on Tue 16 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-03-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-03-22", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6302, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-03-22T05:06:43+08:00", "utc": "1937-03-21T21:06:43Z", "ms": -1034477596542.8887 }, "end": { "local": "1937-03-23T04:45:12+08:00", "utc": "1937-03-22T20:45:12Z", "ms": -1034392488376.4066 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-22T05:06:43+08:00", "utc": "1937-03-21T21:06:43Z", "ms": -1034477596542.8887 }, "end": { "local": "1937-03-23T04:45:12+08:00", "utc": "1937-03-22T20:45:12Z", "ms": -1034392488376.4066 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-03-22", "window": { "start": { "local": "1937-03-22T06:51:45+08:00", "utc": "1937-03-21T22:51:45Z", "ms": -1034471294507.4579 }, "end": { "local": "1937-03-22T06:51:45+08:00", "utc": "1937-03-21T22:51:45Z", "ms": -1034471294507.4579 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-03-23", "window": { "start": { "local": "1937-03-23T06:50:19+08:00", "utc": "1937-03-22T22:50:19Z", "ms": -1034384980677.7053 }, "end": { "local": "1937-03-23T06:50:19+08:00", "utc": "1937-03-22T22:50:19Z", "ms": -1034384980677.7053 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:07 on Mon 22 Mar to 04:45 on Tue 23 Mar.", "fact": "1937-03-21T21:06:43Z → 1937-03-22T20:45:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 22nd and 06:50 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 6302 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Qingyang, 1937: Monday 22 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": "1937-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-22", "confidence": "determinate" } ], "quote": "In Qingyang, Āmalakī Ekādaśī 1937 falls on Monday 22 March. Ekādaśī runs from 05:07 on Mon 22 Mar to 04:45 on Tue 23 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-03-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-03-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29381, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-03-24T04:46:38+08:00", "utc": "1937-03-23T20:46:38Z", "ms": -1034306002025.6149 }, "end": { "local": "1937-03-25T05:11:06+08:00", "utc": "1937-03-24T21:11:06Z", "ms": -1034218133957.6456 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-24T04:46:38+08:00", "utc": "1937-03-23T20:46:38Z", "ms": -1034306002025.6149 }, "end": { "local": "1937-03-25T05:11:06+08:00", "utc": "1937-03-24T21:11:06Z", "ms": -1034218133957.6456 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-03-23", "window": { "start": { "local": "1937-03-23T19:02:48+08:00", "utc": "1937-03-23T11:02:48Z", "ms": -1034341032111.0377 }, "end": { "local": "1937-03-23T20:36:57+08:00", "utc": "1937-03-23T12:36:57Z", "ms": -1034335383416.6042 } }, "covered_min": 0, "window_min": 94, "qualifies": false }, { "local_date": "1937-03-24", "window": { "start": { "local": "1937-03-24T19:03:38+08:00", "utc": "1937-03-24T11:03:38Z", "ms": -1034254582341.476 }, "end": { "local": "1937-03-24T20:37:28+08:00", "utc": "1937-03-24T12:37:28Z", "ms": -1034248951782.8275 } }, "covered_min": 94, "window_min": 94, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:47 on Wed 24 Mar to 05:11 on Thu 25 Mar.", "fact": "1937-03-23T20:46:38Z → 1937-03-24T21:11:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:03–20:37 on the 23rd, 19:04–20:37 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 94 minutes on the 23rd and 94 of 94 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 29381 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Wednesday 24 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": "1937-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-24", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Wednesday 24 March. Trayodaśī runs from 04:47 on Wed 24 Mar to 05:11 on Thu 25 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-03-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-03-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33937, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-03-26T05:59:18+08:00", "utc": "1937-03-25T21:59:18Z", "ms": -1034128841823.4089 }, "end": { "local": "1937-03-27T07:12:11+08:00", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-26T05:59:18+08:00", "utc": "1937-03-25T21:59:18Z", "ms": -1034128841823.4089 }, "end": { "local": "1937-03-27T07:12:11+08:00", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 } }, "kaala": "sayahna", "days": [ { "local_date": "1937-03-26", "window": { "start": { "local": "1937-03-26T16:37:26+08:00", "utc": "1937-03-26T08:37:26Z", "ms": -1034090554393.093 }, "end": { "local": "1937-03-26T19:05:17+08:00", "utc": "1937-03-26T11:05:17Z", "ms": -1034081683143.1238 } }, "covered_min": 148, "window_min": 148, "qualifies": true }, { "local_date": "1937-03-27", "window": { "start": { "local": "1937-03-27T16:37:48+08:00", "utc": "1937-03-27T08:37:48Z", "ms": -1034004132065.5171 }, "end": { "local": "1937-03-27T19:06:06+08:00", "utc": "1937-03-27T11:06:06Z", "ms": -1033995233683.0049 } }, "covered_min": 0, "window_min": 148, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:59 on Fri 26 Mar to 07:12 on Sat 27 Mar.", "fact": "1937-03-25T21:59:18Z → 1937-03-26T23:12:11Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:37–19:05 on the 26th, 16:38–19:06 on the 27th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 148 of 148 minutes on the 26th and 0 of 148 on the 27th.", "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 33937 s" }, { "step": "ruling", "text": "Holikā Dahana, Qingyang, 1937: Friday 26 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": "1937-03-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-26", "confidence": "determinate" } ], "quote": "In Qingyang, Holikā Dahana 1937 falls on Friday 26 March. Pūrṇimā runs from 05:59 on Fri 26 Mar to 07:12 on Sat 27 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33937, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-03-26T05:59:18+08:00", "utc": "1937-03-25T21:59:18Z", "ms": -1034128841823.4089 }, "end": { "local": "1937-03-27T07:12:11+08:00", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1937-03-26T05:59:18+08:00", "utc": "1937-03-25T21:59:18Z", "ms": -1034128841823.4089 }, "end": { "local": "1937-03-27T07:12:11+08:00", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 } }, "kaala": "sayahna", "days": [ { "local_date": "1937-03-26", "window": { "start": { "local": "1937-03-26T16:37:26+08:00", "utc": "1937-03-26T08:37:26Z", "ms": -1034090554393.093 }, "end": { "local": "1937-03-26T19:05:17+08:00", "utc": "1937-03-26T11:05:17Z", "ms": -1034081683143.1238 } }, "covered_min": 148, "window_min": 148, "qualifies": true }, { "local_date": "1937-03-27", "window": { "start": { "local": "1937-03-27T16:37:48+08:00", "utc": "1937-03-27T08:37:48Z", "ms": -1034004132065.5171 }, "end": { "local": "1937-03-27T19:06:06+08:00", "utc": "1937-03-27T11:06:06Z", "ms": -1033995233683.0049 } }, "covered_min": 0, "window_min": 148, "qualifies": false } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1937-03-26", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:59 on Fri 26 Mar to 07:12 on Sat 27 Mar.", "fact": "1937-03-25T21:59:18Z → 1937-03-26T23:12:11Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:37–19:05 on the 26th, 16:38–19:06 on the 27th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 148 of 148 minutes on the 26th and 0 of 148 on the 27th.", "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 33937 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Friday 26 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Qingyang, 1937: Saturday 27 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": "1937-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-27", "confidence": "determinate" } ], "quote": "In Qingyang, Holī 1937 falls on Saturday 27 March. It is kept the day after Holikā Dahana, which falls on Friday 26 March. Pūrṇimā runs from 05:59 on Fri 26 Mar to 07:12 on Sat 27 Mar and covers all of sāyāhna on the 26th.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1657, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-03-27T07:12:11+08:00", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 }, "end": { "local": "1937-03-28T08:50:12+08:00", "utc": "1937-03-28T00:50:12Z", "ms": -1033945787698.5709 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-03-27T07:12:11+08:00", "utc": "1937-03-26T23:12:11Z", "ms": -1034038068581.4277 }, "end": { "local": "1937-03-28T08:50:12+08:00", "utc": "1937-03-28T00:50:12Z", "ms": -1033945787698.5709 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-03-27", "window": { "start": { "local": "1937-03-27T06:44:34+08:00", "utc": "1937-03-26T22:44:34Z", "ms": -1034039725595.5658 }, "end": { "local": "1937-03-27T06:44:34+08:00", "utc": "1937-03-26T22:44:34Z", "ms": -1034039725595.5658 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-03-28", "window": { "start": { "local": "1937-03-28T06:43:08+08:00", "utc": "1937-03-27T22:43:08Z", "ms": -1033953411728.0712 }, "end": { "local": "1937-03-28T06:43:08+08:00", "utc": "1937-03-27T22:43:08Z", "ms": -1033953411728.0712 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 07:12 on Sat 27 Mar to 08:50 on Sun 28 Mar.", "fact": "1937-03-26T23:12:11Z → 1937-03-28T00:50:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:45 on the 27th and 06:43 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is not on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1657 s" }, { "step": "ruling", "text": "Vasantotsava, Qingyang, 1937: Sunday 28 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": "1937-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-28", "confidence": "determinate" } ], "quote": "In Qingyang, Vasantotsava 1937 falls on Sunday 28 March. Pratipadā runs from 07:12 on Sat 27 Mar to 08:50 on Sun 28 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-03-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27083, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-03-30T13:14:49+08:00", "utc": "1937-03-30T05:14:49Z", "ms": -1033757110508.8268 }, "end": { "local": "1937-03-31T15:50:53+08:00", "utc": "1937-03-31T07:50:53Z", "ms": -1033661347135.7753 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-03-30T13:14:49+08:00", "utc": "1937-03-30T05:14:49Z", "ms": -1033757110508.8268 }, "end": { "local": "1937-03-31T15:50:53+08:00", "utc": "1937-03-31T07:50:53Z", "ms": -1033661347135.7753 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-03-30", "window": { "start": { "local": "1937-03-30T22:27:43+08:00", "utc": "1937-03-30T14:27:43Z", "ms": -1033723937351.5925 }, "end": { "local": "1937-03-30T22:27:43+08:00", "utc": "1937-03-30T14:27:43Z", "ms": -1033723937351.5925 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-03-31", "window": { "start": { "local": "1937-03-31T23:22:16+08:00", "utc": "1937-03-31T15:22:16Z", "ms": -1033634263680.4186 }, "end": { "local": "1937-03-31T23:22:16+08:00", "utc": "1937-03-31T15:22:16Z", "ms": -1033634263680.4186 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:15 on Tue 30 Mar to 15:51 on Wed 31 Mar.", "fact": "1937-03-30T05:14:49Z → 1937-03-31T07:50:53Z" }, { "step": "kaala", "text": "Moonrise is at 22:28 on the 30th and 23:22 on the 31st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27083 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Tuesday 30 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": "1937-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-03-30", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Tuesday 30 March. Caturthī runs from 13:15 on Tue 30 Mar to 15:51 on Wed 31 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-03-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35197, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-04-03T23:03:50+08:00", "utc": "1937-04-03T15:03:50Z", "ms": -1033376170285.8031 }, "end": { "local": "1937-04-05T00:31:25+08:00", "utc": "1937-04-04T16:31:25Z", "ms": -1033284515428.3557 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-03T23:03:50+08:00", "utc": "1937-04-03T15:03:50Z", "ms": -1033376170285.8031 }, "end": { "local": "1937-04-05T00:31:25+08:00", "utc": "1937-04-04T16:31:25Z", "ms": -1033284515428.3557 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-03", "window": { "start": { "local": "1937-04-03T12:29:13+08:00", "utc": "1937-04-03T04:29:13Z", "ms": -1033414247007.8301 }, "end": { "local": "1937-04-03T13:17:13+08:00", "utc": "1937-04-03T05:17:13Z", "ms": -1033411367007.8301 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-04", "window": { "start": { "local": "1937-04-04T12:28:55+08:00", "utc": "1937-04-04T04:28:55Z", "ms": -1033327864767.1677 }, "end": { "local": "1937-04-04T13:16:55+08:00", "utc": "1937-04-04T05:16:55Z", "ms": -1033324984767.1677 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 23:04 on Sat 3 Apr to 00:31 on Mon 5 Apr.", "fact": "1937-04-03T15:03:50Z → 1937-04-04T16:31:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 3rd, 12:29–13:17 on the 4th.", "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 3rd and 48 of 48 on the 4th.", "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 35197 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Qingyang, 1937: Sunday 4 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": "1937-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-04", "confidence": "determinate" } ], "quote": "In Qingyang, Śītalāṣṭamī 1937 falls on Sunday 4 April. Aṣṭamī runs from 23:04 on Sat 3 Apr to 00:31 on Mon 5 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-04-07", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19662, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-04-07T01:01:16+08:00", "utc": "1937-04-06T17:01:16Z", "ms": -1033109924477.1584 }, "end": { "local": "1937-04-07T23:58:24+08:00", "utc": "1937-04-07T15:58:24Z", "ms": -1033027296184.0668 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-07T01:01:16+08:00", "utc": "1937-04-06T17:01:16Z", "ms": -1033109924477.1584 }, "end": { "local": "1937-04-07T23:58:24+08:00", "utc": "1937-04-07T15:58:24Z", "ms": -1033027296184.0668 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-04-07", "window": { "start": { "local": "1937-04-07T06:28:58+08:00", "utc": "1937-04-06T22:28:58Z", "ms": -1033090262354.9117 }, "end": { "local": "1937-04-07T06:28:58+08:00", "utc": "1937-04-06T22:28:58Z", "ms": -1033090262354.9117 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-04-08", "window": { "start": { "local": "1937-04-08T06:27:34+08:00", "utc": "1937-04-07T22:27:34Z", "ms": -1033003945675.8785 }, "end": { "local": "1937-04-08T06:27:34+08:00", "utc": "1937-04-07T22:27:34Z", "ms": -1033003945675.8785 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:01 on Wed 7 Apr to 23:58 on Wed 7 Apr.", "fact": "1937-04-06T17:01:16Z → 1937-04-07T15:58:24Z" }, { "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 on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19662 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Qingyang, 1937: Wednesday 7 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": "1937-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-07", "confidence": "determinate" } ], "quote": "In Qingyang, Pāpamocanī Ekādaśī 1937 falls on Wednesday 7 April. Ekādaśī runs from 01:01 on Wed 7 Apr to 23:58 on Wed 7 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-04-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-04-09", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1173, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-04-08T22:07:41+08:00", "utc": "1937-04-08T14:07:41Z", "ms": -1032947538916.8247 }, "end": { "local": "1937-04-09T19:36:20+08:00", "utc": "1937-04-09T11:36:20Z", "ms": -1032870219815.2653 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-08T22:07:41+08:00", "utc": "1937-04-08T14:07:41Z", "ms": -1032947538916.8247 }, "end": { "local": "1937-04-09T19:36:20+08:00", "utc": "1937-04-09T11:36:20Z", "ms": -1032870219815.2653 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-04-08", "window": { "start": { "local": "1937-04-08T19:15:58+08:00", "utc": "1937-04-08T11:15:58Z", "ms": -1032957842164.0626 }, "end": { "local": "1937-04-08T20:45:20+08:00", "utc": "1937-04-08T12:45:20Z", "ms": -1032952480350.5459 } }, "covered_min": 0, "window_min": 89, "qualifies": false }, { "local_date": "1937-04-09", "window": { "start": { "local": "1937-04-09T19:16:47+08:00", "utc": "1937-04-09T11:16:47Z", "ms": -1032871392738.9536 }, "end": { "local": "1937-04-09T20:45:51+08:00", "utc": "1937-04-09T12:45:51Z", "ms": -1032866048505.5408 } }, "covered_min": 20, "window_min": 89, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:08 on Thu 8 Apr to 19:36 on Fri 9 Apr.", "fact": "1937-04-08T14:07:41Z → 1937-04-09T11:36:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:16–20:45 on the 8th, 19:17–20:46 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 89 minutes on the 8th and 20 of 89 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 1173 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Friday 9 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": "1937-04-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-09", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Friday 9 April. Trayodaśī runs from 22:08 on Thu 8 Apr to 19:36 on Fri 9 Apr and covers 20 of 89 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-04-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-04-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17428, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-04-09T19:36:20+08:00", "utc": "1937-04-09T11:36:20Z", "ms": -1032870219815.2653 }, "end": { "local": "1937-04-10T16:33:37+08:00", "utc": "1937-04-10T08:33:37Z", "ms": -1032794783326.0587 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-09T19:36:20+08:00", "utc": "1937-04-09T11:36:20Z", "ms": -1032870219815.2653 }, "end": { "local": "1937-04-10T16:33:37+08:00", "utc": "1937-04-10T08:33:37Z", "ms": -1032794783326.0587 } }, "kaala": "nishita", "days": [ { "local_date": "1937-04-09", "window": { "start": { "local": "1937-04-10T00:26:48+08:00", "utc": "1937-04-09T16:26:48Z", "ms": -1032852791863.6554 }, "end": { "local": "1937-04-10T01:14:48+08:00", "utc": "1937-04-09T17:14:48Z", "ms": -1032849911863.6554 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-04-10", "window": { "start": { "local": "1937-04-11T00:26:32+08:00", "utc": "1937-04-10T16:26:32Z", "ms": -1032766408097.6599 }, "end": { "local": "1937-04-11T01:14:32+08:00", "utc": "1937-04-10T17:14:32Z", "ms": -1032763528097.6599 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:36 on Fri 9 Apr to 16:34 on Sat 10 Apr.", "fact": "1937-04-09T11:36:20Z → 1937-04-10T08:33:37Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:27–01:15 on the 9th, 00:27–01:15 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 17428 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Friday 9 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": "1937-04-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-09", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Friday 9 April. Caturdaśī runs from 19:36 on Fri 9 Apr to 16:34 on Sat 10 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-04-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 306, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-04-11T13:09:51+08:00", "utc": "1937-04-11T05:09:51Z", "ms": -1032720608919.9813 }, "end": { "local": "1937-04-12T09:35:44+08:00", "utc": "1937-04-12T01:35:44Z", "ms": -1032647056196.4641 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-11T13:09:51+08:00", "utc": "1937-04-11T05:09:51Z", "ms": -1032720608919.9813 }, "end": { "local": "1937-04-12T09:35:44+08:00", "utc": "1937-04-12T01:35:44Z", "ms": -1032647056196.4641 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-11", "window": { "start": { "local": "1937-04-11T12:26:57+08:00", "utc": "1937-04-11T04:26:57Z", "ms": -1032723183339.56 }, "end": { "local": "1937-04-11T13:14:57+08:00", "utc": "1937-04-11T05:14:57Z", "ms": -1032720303339.56 } }, "covered_min": 5, "window_min": 48, "qualifies": true }, { "local_date": "1937-04-12", "window": { "start": { "local": "1937-04-12T12:26:41+08:00", "utc": "1937-04-12T04:26:41Z", "ms": -1032636799272.7048 }, "end": { "local": "1937-04-12T13:14:41+08:00", "utc": "1937-04-12T05:14:41Z", "ms": -1032633919272.7048 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 13:10 on Sun 11 Apr to 09:36 on Mon 12 Apr.", "fact": "1937-04-11T05:09:51Z → 1937-04-12T01:35:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 11th, 12:27–13:15 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 5 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": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 306 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Qingyang, 1937: Sunday 11 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": "1937-04-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-11", "confidence": "determinate" } ], "quote": "In Qingyang, Navarātrārambha (Caitra) (Chaitra Navratri) 1937 falls on Sunday 11 April. Pratipadā runs from 13:10 on Sun 11 Apr to 09:36 on Mon 12 Apr and covers 5 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35284, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1937-04-13T16:08:49+08:00", "utc": "1937-04-13T08:08:49Z", "ms": -1032537070853.9725 }, "end": { "local": "1937-05-14T13:09:26+08:00", "utc": "1937-05-14T05:09:26Z", "ms": -1029869434241.6577 } }, "span": { "of": "transit", "start": { "local": "1937-04-13T16:08:49+08:00", "utc": "1937-04-13T08:08:49Z", "ms": -1032537070853.9725 }, "end": { "local": "1937-04-13T16:08:49+08:00", "utc": "1937-04-13T08:08:49Z", "ms": -1032537070853.9725 } }, "kaala": "day", "days": [ { "local_date": "1937-04-12", "window": { "start": { "local": "1937-04-12T06:22:06+08:00", "utc": "1937-04-11T22:22:06Z", "ms": -1032658674353.7382 }, "end": { "local": "1937-04-13T06:20:45+08:00", "utc": "1937-04-12T22:20:45Z", "ms": -1032572355244.0038 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "1937-04-13", "window": { "start": { "local": "1937-04-13T06:20:45+08:00", "utc": "1937-04-12T22:20:45Z", "ms": -1032572355244.0038 }, "end": { "local": "1937-04-14T06:19:24+08:00", "utc": "1937-04-13T22:19:24Z", "ms": -1032486035573.178 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 16:09 on Tue 13 Apr.", "fact": "1937-04-13T08:08:49Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:22 on the 12th, and from 06:21 on the 13th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 13th, not the 12th.", "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 35284 s" }, { "step": "ruling", "text": "Vaiśākhī, Qingyang, 1937: Tuesday 13 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1937-04-13", "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": "sunset-rule", "local_date": "1937-04-13", "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 Qingyang, Vaiśākhī 1937 falls on Tuesday 13 April. The Sun enters Meṣa at 16:09 on Tue 13 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23084, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-04-13T06:01:41+08:00", "utc": "1937-04-12T22:01:41Z", "ms": -1032573499218.6879 }, "end": { "local": "1937-04-14T02:37:26+08:00", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-13T06:01:41+08:00", "utc": "1937-04-12T22:01:41Z", "ms": -1032573499218.6879 }, "end": { "local": "1937-04-14T02:37:26+08:00", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-13", "window": { "start": { "local": "1937-04-13T12:26:25+08:00", "utc": "1937-04-13T04:26:25Z", "ms": -1032550414916.6345 }, "end": { "local": "1937-04-13T13:14:25+08:00", "utc": "1937-04-13T05:14:25Z", "ms": -1032547534916.6345 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-04-14", "window": { "start": { "local": "1937-04-14T12:26:10+08:00", "utc": "1937-04-14T04:26:10Z", "ms": -1032464030260.35 }, "end": { "local": "1937-04-14T13:14:10+08:00", "utc": "1937-04-14T05:14:10Z", "ms": -1032461150260.35 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:02 on Tue 13 Apr to 02:37 on Wed 14 Apr.", "fact": "1937-04-12T22:01:41Z → 1937-04-13T18:37:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 13th, 12:26–13:14 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: unstated → only-day · margin 23084 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Qingyang, 1937: Tuesday 13 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": "1937-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-13", "confidence": "determinate" } ], "quote": "In Qingyang, Gaurī Tṛtīyā (Gangaur) 1937 falls on Tuesday 13 April. Tṛtīyā runs from 06:02 on Tue 13 Apr to 02:37 on Wed 14 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23084, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-04-13T06:01:41+08:00", "utc": "1937-04-12T22:01:41Z", "ms": -1032573499218.6879 }, "end": { "local": "1937-04-14T02:37:26+08:00", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-13T06:01:41+08:00", "utc": "1937-04-12T22:01:41Z", "ms": -1032573499218.6879 }, "end": { "local": "1937-04-14T02:37:26+08:00", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-13", "window": { "start": { "local": "1937-04-13T12:26:25+08:00", "utc": "1937-04-13T04:26:25Z", "ms": -1032550414916.6345 }, "end": { "local": "1937-04-13T13:14:25+08:00", "utc": "1937-04-13T05:14:25Z", "ms": -1032547534916.6345 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-04-14", "window": { "start": { "local": "1937-04-14T12:26:10+08:00", "utc": "1937-04-14T04:26:10Z", "ms": -1032464030260.35 }, "end": { "local": "1937-04-14T13:14:10+08:00", "utc": "1937-04-14T05:14:10Z", "ms": -1032461150260.35 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:02 on Tue 13 Apr to 02:37 on Wed 14 Apr.", "fact": "1937-04-12T22:01:41Z → 1937-04-13T18:37:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 13th, 12:26–13:14 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: paraviddha → only-day · margin 23084 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Qingyang, 1937: Tuesday 13 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": "1937-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-13", "confidence": "determinate" } ], "quote": "In Qingyang, Saubhāgya Śayana Vrata 1937 falls on Tuesday 13 April. Tṛtīyā runs from 06:02 on Tue 13 Apr to 02:37 on Wed 14 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-04-14", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35324, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-04-14T02:37:26+08:00", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 }, "end": { "local": "1937-04-14T23:31:38+08:00", "utc": "1937-04-14T15:31:38Z", "ms": -1032424101634.4401 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-14T02:37:26+08:00", "utc": "1937-04-13T18:37:26Z", "ms": -1032499353872.7878 }, "end": { "local": "1937-04-14T23:31:38+08:00", "utc": "1937-04-14T15:31:38Z", "ms": -1032424101634.4401 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-14", "window": { "start": { "local": "1937-04-14T12:26:10+08:00", "utc": "1937-04-14T04:26:10Z", "ms": -1032464030260.35 }, "end": { "local": "1937-04-14T13:14:10+08:00", "utc": "1937-04-14T05:14:10Z", "ms": -1032461150260.35 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-04-15", "window": { "start": { "local": "1937-04-15T12:25:55+08:00", "utc": "1937-04-15T04:25:55Z", "ms": -1032377645292.4297 }, "end": { "local": "1937-04-15T13:13:55+08:00", "utc": "1937-04-15T05:13:55Z", "ms": -1032374765292.4297 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:37 on Wed 14 Apr to 23:32 on Wed 14 Apr.", "fact": "1937-04-13T18:37:26Z → 1937-04-14T15:31:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 14th, 12:26–13:14 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35324 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1937: Wednesday 14 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": "1937-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-14", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1937 falls on Wednesday 14 April. Caturthī runs from 02:37 on Wed 14 Apr to 23:32 on Wed 14 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-04-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27454, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-04-14T23:31:38+08:00", "utc": "1937-04-14T15:31:38Z", "ms": -1032424101634.4401 }, "end": { "local": "1937-04-15T20:51:29+08:00", "utc": "1937-04-15T12:51:29Z", "ms": -1032347311355.4716 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-14T23:31:38+08:00", "utc": "1937-04-14T15:31:38Z", "ms": -1032424101634.4401 }, "end": { "local": "1937-04-15T20:51:29+08:00", "utc": "1937-04-15T12:51:29Z", "ms": -1032347311355.4716 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-14", "window": { "start": { "local": "1937-04-14T12:26:10+08:00", "utc": "1937-04-14T04:26:10Z", "ms": -1032464030260.35 }, "end": { "local": "1937-04-14T13:14:10+08:00", "utc": "1937-04-14T05:14:10Z", "ms": -1032461150260.35 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-15", "window": { "start": { "local": "1937-04-15T12:25:55+08:00", "utc": "1937-04-15T04:25:55Z", "ms": -1032377645292.4297 }, "end": { "local": "1937-04-15T13:13:55+08:00", "utc": "1937-04-15T05:13:55Z", "ms": -1032374765292.4297 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 23:32 on Wed 14 Apr to 20:51 on Thu 15 Apr.", "fact": "1937-04-14T15:31:38Z → 1937-04-15T12:51:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 14th, 12:26–13:14 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 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27454 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Qingyang, 1937: Thursday 15 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": "1937-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-15", "confidence": "determinate" } ], "quote": "In Qingyang, Lakṣmī Pañcamī 1937 falls on Thursday 15 April. Pañcamī runs from 23:32 on Wed 14 Apr to 20:51 on Thu 15 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10544, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-04-17T17:07:43+08:00", "utc": "1937-04-17T09:07:43Z", "ms": -1032187937025.9424 }, "end": { "local": "1937-04-18T16:08:56+08:00", "utc": "1937-04-18T08:08:56Z", "ms": -1032105064496.9614 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-17T17:07:43+08:00", "utc": "1937-04-17T09:07:43Z", "ms": -1032187937025.9424 }, "end": { "local": "1937-04-18T16:08:56+08:00", "utc": "1937-04-18T08:08:56Z", "ms": -1032105064496.9614 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-17", "window": { "start": { "local": "1937-04-17T12:25:26+08:00", "utc": "1937-04-17T04:25:26Z", "ms": -1032204874371.8457 }, "end": { "local": "1937-04-17T13:13:26+08:00", "utc": "1937-04-17T05:13:26Z", "ms": -1032201994371.8457 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-18", "window": { "start": { "local": "1937-04-18T12:25:12+08:00", "utc": "1937-04-18T04:25:12Z", "ms": -1032118488391.9854 }, "end": { "local": "1937-04-18T13:13:12+08:00", "utc": "1937-04-18T05:13:12Z", "ms": -1032115608391.9854 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:08 on Sat 17 Apr to 16:09 on Sun 18 Apr.", "fact": "1937-04-17T09:07:43Z → 1937-04-18T08:08:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 17th, 12:25–13:13 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10544 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Qingyang, 1937: Sunday 18 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": "1937-04-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-18", "confidence": "determinate" } ], "quote": "In Qingyang, Bhavānī Utpatti 1937 falls on Sunday 18 April. Aṣṭamī runs from 17:08 on Sat 17 Apr to 16:09 on Sun 18 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9153, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1937-04-18T16:08:56+08:00", "utc": "1937-04-18T08:08:56Z", "ms": -1032105064496.9614 }, "end": { "local": "1937-04-19T15:45:31+08:00", "utc": "1937-04-19T07:45:31Z", "ms": -1032020068684.4708 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-18T16:08:56+08:00", "utc": "1937-04-18T08:08:56Z", "ms": -1032105064496.9614 }, "end": { "local": "1937-04-19T15:45:31+08:00", "utc": "1937-04-19T07:45:31Z", "ms": -1032020068684.4708 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-18", "window": { "start": { "local": "1937-04-18T12:25:12+08:00", "utc": "1937-04-18T04:25:12Z", "ms": -1032118488391.9854 }, "end": { "local": "1937-04-18T13:13:12+08:00", "utc": "1937-04-18T05:13:12Z", "ms": -1032115608391.9854 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-19", "window": { "start": { "local": "1937-04-19T12:24:58+08:00", "utc": "1937-04-19T04:24:58Z", "ms": -1032032102046.3707 }, "end": { "local": "1937-04-19T13:12:58+08:00", "utc": "1937-04-19T05:12:58Z", "ms": -1032029222046.3707 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 16:09 on Sun 18 Apr to 15:46 on Mon 19 Apr.", "fact": "1937-04-18T08:08:56Z → 1937-04-19T07:45:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 18th, 12:25–13:13 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9153 s" }, { "step": "ruling", "text": "Rāma Navamī, Qingyang, 1937: Monday 19 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": "1937-04-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-19", "confidence": "determinate" } ], "quote": "In Qingyang, Rāma Navamī 1937 falls on Monday 19 April. Navamī runs from 16:09 on Sun 18 Apr to 15:46 on Mon 19 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-04-21", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35040, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-04-20T15:55:36+08:00", "utc": "1937-04-20T07:55:36Z", "ms": -1031933064054.0359 }, "end": { "local": "1937-04-21T16:36:22+08:00", "utc": "1937-04-21T08:36:22Z", "ms": -1031844218329.8497 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-20T15:55:36+08:00", "utc": "1937-04-20T07:55:36Z", "ms": -1031933064054.0359 }, "end": { "local": "1937-04-21T16:36:22+08:00", "utc": "1937-04-21T08:36:22Z", "ms": -1031844218329.8497 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-04-20", "window": { "start": { "local": "1937-04-20T06:11:36+08:00", "utc": "1937-04-19T22:11:36Z", "ms": -1031968104280.2877 }, "end": { "local": "1937-04-20T06:11:36+08:00", "utc": "1937-04-19T22:11:36Z", "ms": -1031968104280.2877 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-04-21", "window": { "start": { "local": "1937-04-21T06:10:20+08:00", "utc": "1937-04-20T22:10:20Z", "ms": -1031881779921.806 }, "end": { "local": "1937-04-21T06:10:20+08:00", "utc": "1937-04-20T22:10:20Z", "ms": -1031881779921.806 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:56 on Tue 20 Apr to 16:36 on Wed 21 Apr.", "fact": "1937-04-20T07:55:36Z → 1937-04-21T08:36:22Z" }, { "step": "kaala", "text": "Sunrise is at 06:12 on the 20th and 06:10 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 35040 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Qingyang, 1937: Wednesday 21 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": "1937-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-21", "confidence": "determinate" } ], "quote": "In Qingyang, Kāmadā Ekādaśī 1937 falls on Wednesday 21 April. Ekādaśī runs from 15:56 on Tue 20 Apr to 16:36 on Wed 21 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-04-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-04-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 661, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-04-22T17:44:40+08:00", "utc": "1937-04-22T09:44:40Z", "ms": -1031753720106.3541 }, "end": { "local": "1937-04-23T19:17:23+08:00", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-22T17:44:40+08:00", "utc": "1937-04-22T09:44:40Z", "ms": -1031753720106.3541 }, "end": { "local": "1937-04-23T19:17:23+08:00", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-04-22", "window": { "start": { "local": "1937-04-22T19:27:33+08:00", "utc": "1937-04-22T11:27:33Z", "ms": -1031747546548.7246 }, "end": { "local": "1937-04-22T20:52:56+08:00", "utc": "1937-04-22T12:52:56Z", "ms": -1031742424184.1827 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "1937-04-23", "window": { "start": { "local": "1937-04-23T19:28:23+08:00", "utc": "1937-04-23T11:28:23Z", "ms": -1031661096588.0966 }, "end": { "local": "1937-04-23T20:53:29+08:00", "utc": "1937-04-23T12:53:29Z", "ms": -1031655990643.6932 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:45 on Thu 22 Apr to 19:17 on Fri 23 Apr.", "fact": "1937-04-22T09:44:40Z → 1937-04-23T11:17:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:28–20:53 on the 22nd, 19:28–20:53 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 85 of 85 minutes on the 22nd and 0 of 85 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 661 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Thursday 22 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": "1937-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-22", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Thursday 22 April. Trayodaśī runs from 17:45 on Thu 22 Apr to 19:17 on Fri 23 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-04-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16341, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-04-22T17:44:40+08:00", "utc": "1937-04-22T09:44:40Z", "ms": -1031753720106.3541 }, "end": { "local": "1937-04-23T19:17:23+08:00", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-22T17:44:40+08:00", "utc": "1937-04-22T09:44:40Z", "ms": -1031753720106.3541 }, "end": { "local": "1937-04-23T19:17:23+08:00", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-22", "window": { "start": { "local": "1937-04-22T12:24:19+08:00", "utc": "1937-04-22T04:24:19Z", "ms": -1031772940662.724 }, "end": { "local": "1937-04-22T13:12:19+08:00", "utc": "1937-04-22T05:12:19Z", "ms": -1031770060662.724 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-23", "window": { "start": { "local": "1937-04-23T12:24:07+08:00", "utc": "1937-04-23T04:24:07Z", "ms": -1031686552701.3787 }, "end": { "local": "1937-04-23T13:12:07+08:00", "utc": "1937-04-23T05:12:07Z", "ms": -1031683672701.3787 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:45 on Thu 22 Apr to 19:17 on Fri 23 Apr.", "fact": "1937-04-22T09:44:40Z → 1937-04-23T11:17:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 22nd, 12:24–13:12 on the 23rd.", "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 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 16341 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Qingyang, 1937: Friday 23 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": "1937-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-23", "confidence": "determinate" } ], "quote": "In Qingyang, Anaṅga Trayodaśī 1937 falls on Friday 23 April. Trayodaśī runs from 17:45 on Thu 22 Apr to 19:17 on Fri 23 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21915, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-04-23T19:17:23+08:00", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 }, "end": { "local": "1937-04-24T21:11:25+08:00", "utc": "1937-04-24T13:11:25Z", "ms": -1031568514677.3347 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-23T19:17:23+08:00", "utc": "1937-04-23T11:17:23Z", "ms": -1031661757450.5477 }, "end": { "local": "1937-04-24T21:11:25+08:00", "utc": "1937-04-24T13:11:25Z", "ms": -1031568514677.3347 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-23", "window": { "start": { "local": "1937-04-23T12:24:07+08:00", "utc": "1937-04-23T04:24:07Z", "ms": -1031686552701.3787 }, "end": { "local": "1937-04-23T13:12:07+08:00", "utc": "1937-04-23T05:12:07Z", "ms": -1031683672701.3787 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-24", "window": { "start": { "local": "1937-04-24T12:23:56+08:00", "utc": "1937-04-24T04:23:56Z", "ms": -1031600164298.0325 }, "end": { "local": "1937-04-24T13:11:56+08:00", "utc": "1937-04-24T05:11:56Z", "ms": -1031597284298.0325 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:17 on Fri 23 Apr to 21:11 on Sat 24 Apr.", "fact": "1937-04-23T11:17:23Z → 1937-04-24T13:11:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 23rd, 12:24–13:12 on the 24th.", "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 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21915 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Qingyang, 1937: Saturday 24 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vishnu-damanaka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Madanabhanji, (Bengal & Orissa) (paraviddha), Sivadamanaka caturdasi, Visnudamanaka caturdasi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-04-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-24", "confidence": "determinate" } ], "quote": "In Qingyang, Viṣṇudamanaka Caturdaśī 1937 falls on Saturday 24 April. Caturdaśī runs from 19:17 on Fri 23 Apr to 21:11 on Sat 24 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28770, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-04-24T21:11:25+08:00", "utc": "1937-04-24T13:11:25Z", "ms": -1031568514677.3347 }, "end": { "local": "1937-04-25T23:23:31+08:00", "utc": "1937-04-25T15:23:31Z", "ms": -1031474188945.5028 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1937-04-24T21:11:25+08:00", "utc": "1937-04-24T13:11:25Z", "ms": -1031568514677.3347 }, "end": { "local": "1937-04-25T23:23:31+08:00", "utc": "1937-04-25T15:23:31Z", "ms": -1031474188945.5028 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-04-24", "window": { "start": { "local": "1937-04-24T12:23:56+08:00", "utc": "1937-04-24T04:23:56Z", "ms": -1031600164298.0325 }, "end": { "local": "1937-04-24T13:11:56+08:00", "utc": "1937-04-24T05:11:56Z", "ms": -1031597284298.0325 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-04-25", "window": { "start": { "local": "1937-04-25T12:23:45+08:00", "utc": "1937-04-25T04:23:45Z", "ms": -1031513775437.9951 }, "end": { "local": "1937-04-25T13:11:45+08:00", "utc": "1937-04-25T05:11:45Z", "ms": -1031510895437.9951 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:11 on Sat 24 Apr to 23:24 on Sun 25 Apr.", "fact": "1937-04-24T13:11:25Z → 1937-04-25T15:23:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 24th, 12:24–13:12 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 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: paraviddha → only-day · margin 28770 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Qingyang, 1937: Sunday 25 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chaitri-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Caitri purnima (paraviddha), Hanumat jayanti, Oli ending (Jain)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-25", "confidence": "determinate" } ], "quote": "In Qingyang, Caitrī Pūrṇimā 1937 falls on Sunday 25 April. Pūrṇimā runs from 21:11 on Sat 24 Apr to 23:24 on Sun 25 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-04-29", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31910, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-04-29T07:00:29+08:00", "utc": "1937-04-28T23:00:29Z", "ms": -1031187571349.3253 }, "end": { "local": "1937-04-30T09:28:50+08:00", "utc": "1937-04-30T01:28:50Z", "ms": -1031092270254.5385 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-04-29T07:00:29+08:00", "utc": "1937-04-28T23:00:29Z", "ms": -1031187571349.3253 }, "end": { "local": "1937-04-30T09:28:50+08:00", "utc": "1937-04-30T01:28:50Z", "ms": -1031092270254.5385 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-04-28", "window": { "start": { "local": "1937-04-28T22:08:39+08:00", "utc": "1937-04-28T14:08:39Z", "ms": -1031219481224.8193 }, "end": { "local": "1937-04-28T22:08:39+08:00", "utc": "1937-04-28T14:08:39Z", "ms": -1031219481224.8193 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-04-29", "window": { "start": { "local": "1937-04-29T22:58:23+08:00", "utc": "1937-04-29T14:58:23Z", "ms": -1031130096944.5796 }, "end": { "local": "1937-04-29T22:58:23+08:00", "utc": "1937-04-29T14:58:23Z", "ms": -1031130096944.5796 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:00 on Thu 29 Apr to 09:29 on Fri 30 Apr.", "fact": "1937-04-28T23:00:29Z → 1937-04-30T01:28:50Z" }, { "step": "kaala", "text": "Moonrise is at 22:09 on the 28th and 22:58 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31910 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Thursday 29 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": "1937-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-04-29", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Thursday 29 April. Caturthī runs from 07:00 on Thu 29 Apr to 09:29 on Fri 30 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-04-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-05-07", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17198, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-05-06T12:45:09+08:00", "utc": "1937-05-06T04:45:09Z", "ms": -1030562091225.5918 }, "end": { "local": "1937-05-07T10:38:55+08:00", "utc": "1937-05-07T02:38:55Z", "ms": -1030483264864.3873 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-06T12:45:09+08:00", "utc": "1937-05-06T04:45:09Z", "ms": -1030562091225.5918 }, "end": { "local": "1937-05-07T10:38:55+08:00", "utc": "1937-05-07T02:38:55Z", "ms": -1030483264864.3873 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-05-06", "window": { "start": { "local": "1937-05-06T05:53:17+08:00", "utc": "1937-05-05T21:53:17Z", "ms": -1030586803044.5409 }, "end": { "local": "1937-05-06T05:53:17+08:00", "utc": "1937-05-05T21:53:17Z", "ms": -1030586803044.5409 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-05-07", "window": { "start": { "local": "1937-05-07T05:52:18+08:00", "utc": "1937-05-06T21:52:18Z", "ms": -1030500462455.0835 }, "end": { "local": "1937-05-07T05:52:18+08:00", "utc": "1937-05-06T21:52:18Z", "ms": -1030500462455.0835 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:45 on Thu 6 May to 10:39 on Fri 7 May.", "fact": "1937-05-06T04:45:09Z → 1937-05-07T02:38:55Z" }, { "step": "kaala", "text": "Sunrise is at 05:53 on the 6th and 05:52 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 17198 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Qingyang, 1937: Friday 7 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": "1937-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-07", "confidence": "determinate" } ], "quote": "In Qingyang, Varūthinī Ekādaśī 1937 falls on Friday 7 May. Ekādaśī runs from 12:45 on Thu 6 May to 10:39 on Fri 7 May and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-05-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-05-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27422, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-05-08T07:54:09+08:00", "utc": "1937-05-07T23:54:09Z", "ms": -1030406751293.1827 }, "end": { "local": "1937-05-09T04:39:12+08:00", "utc": "1937-05-08T20:39:12Z", "ms": -1030332048121.8184 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-08T07:54:09+08:00", "utc": "1937-05-07T23:54:09Z", "ms": -1030406751293.1827 }, "end": { "local": "1937-05-09T04:39:12+08:00", "utc": "1937-05-08T20:39:12Z", "ms": -1030332048121.8184 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-05-07", "window": { "start": { "local": "1937-05-07T19:40:04+08:00", "utc": "1937-05-07T11:40:04Z", "ms": -1030450795583.1526 }, "end": { "local": "1937-05-07T21:01:34+08:00", "utc": "1937-05-07T13:01:34Z", "ms": -1030445905586.2657 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "1937-05-08", "window": { "start": { "local": "1937-05-08T19:40:54+08:00", "utc": "1937-05-08T11:40:54Z", "ms": -1030364345804.076 }, "end": { "local": "1937-05-08T21:02:10+08:00", "utc": "1937-05-08T13:02:10Z", "ms": -1030359470026.9521 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:54 on Sat 8 May to 04:39 on Sun 9 May.", "fact": "1937-05-07T23:54:09Z → 1937-05-08T20:39:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:40–21:02 on the 7th, 19:41–21:02 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 81 minutes on the 7th and 81 of 81 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 27422 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Saturday 8 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": "1937-05-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-08", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Saturday 8 May. Trayodaśī runs from 07:54 on Sat 8 May to 04:39 on Sun 9 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-05-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-05-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 359, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-05-09T04:39:12+08:00", "utc": "1937-05-08T20:39:12Z", "ms": -1030332048121.8184 }, "end": { "local": "1937-05-10T01:03:37+08:00", "utc": "1937-05-09T17:03:37Z", "ms": -1030258583103.2507 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-09T04:39:12+08:00", "utc": "1937-05-08T20:39:12Z", "ms": -1030332048121.8184 }, "end": { "local": "1937-05-10T01:03:37+08:00", "utc": "1937-05-09T17:03:37Z", "ms": -1030258583103.2507 } }, "kaala": "nishita", "days": [ { "local_date": "1937-05-08", "window": { "start": { "local": "1937-05-09T00:21:38+08:00", "utc": "1937-05-08T16:21:38Z", "ms": -1030347501639.8613 }, "end": { "local": "1937-05-09T01:09:38+08:00", "utc": "1937-05-08T17:09:38Z", "ms": -1030344621639.8613 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-05-09", "window": { "start": { "local": "1937-05-10T00:21:35+08:00", "utc": "1937-05-09T16:21:35Z", "ms": -1030261104599.1074 }, "end": { "local": "1937-05-10T01:09:35+08:00", "utc": "1937-05-09T17:09:35Z", "ms": -1030258224599.1074 } }, "covered_min": 42, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:39 on Sun 9 May to 01:04 on Mon 10 May.", "fact": "1937-05-08T20:39:12Z → 1937-05-09T17:03:37Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:22–01:10 on the 8th, 00:22–01:10 on the 9th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 8th and 42 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 359 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Sunday 9 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": "1937-05-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-09", "confidence": "boundary" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Sunday 9 May. Caturdaśī runs from 04:39 on Sun 9 May to 01:04 on Mon 10 May and covers 42 of 48 minutes of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-05-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20997, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-05-12T13:54:14+08:00", "utc": "1937-05-12T05:54:14Z", "ms": -1030039545610.8109 }, "end": { "local": "1937-05-13T10:36:23+08:00", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-12T13:54:14+08:00", "utc": "1937-05-12T05:54:14Z", "ms": -1030039545610.8109 }, "end": { "local": "1937-05-13T10:36:23+08:00", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-05-12", "window": { "start": { "local": "1937-05-12T19:44:12+08:00", "utc": "1937-05-12T11:44:12Z", "ms": -1030018548279.0382 }, "end": { "local": "1937-05-12T21:04:33+08:00", "utc": "1937-05-12T13:04:33Z", "ms": -1030013727405.0992 } }, "covered_min": 80, "window_min": 80, "qualifies": true }, { "local_date": "1937-05-13", "window": { "start": { "local": "1937-05-13T19:45:01+08:00", "utc": "1937-05-13T11:45:01Z", "ms": -1029932099439.8721 }, "end": { "local": "1937-05-13T21:05:08+08:00", "utc": "1937-05-13T13:05:08Z", "ms": -1029927291765.88 } }, "covered_min": 0, "window_min": 80, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:54 on Wed 12 May to 10:36 on Thu 13 May.", "fact": "1937-05-12T05:54:14Z → 1937-05-13T02:36:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:44–21:05 on the 12th, 19:45–21:05 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 80 of 80 minutes on the 12th and 0 of 80 on the 13th.", "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 20997 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Qingyang, 1937: Wednesday 12 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": "1937-05-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-12", "confidence": "determinate" } ], "quote": "In Qingyang, Paraśurāma Jayantī 1937 falls on Wednesday 12 May. Tṛtīyā runs from 13:54 on Wed 12 May to 10:36 on Thu 13 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 611, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-05-12T13:54:14+08:00", "utc": "1937-05-12T05:54:14Z", "ms": -1030039545610.8109 }, "end": { "local": "1937-05-13T10:36:23+08:00", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-12T13:54:14+08:00", "utc": "1937-05-12T05:54:14Z", "ms": -1030039545610.8109 }, "end": { "local": "1937-05-13T10:36:23+08:00", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 } }, "kaala": "purvahna", "days": [ { "local_date": "1937-05-12", "window": { "start": { "local": "1937-05-12T05:47:40+08:00", "utc": "1937-05-11T21:47:40Z", "ms": -1030068740184.587 }, "end": { "local": "1937-05-12T10:26:30+08:00", "utc": "1937-05-12T02:26:30Z", "ms": -1030052009549.404 } }, "covered_min": 0, "window_min": 279, "qualifies": false }, { "local_date": "1937-05-13", "window": { "start": { "local": "1937-05-13T05:46:48+08:00", "utc": "1937-05-12T21:46:48Z", "ms": -1029982391724.4961 }, "end": { "local": "1937-05-13T10:26:12+08:00", "utc": "1937-05-13T02:26:12Z", "ms": -1029965627629.6215 } }, "covered_min": 279, "window_min": 279, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:54 on Wed 12 May to 10:36 on Thu 13 May.", "fact": "1937-05-12T05:54:14Z → 1937-05-13T02:36:23Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:48–10:27 on the 12th, 05:47–10:26 on the 13th.", "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 279 minutes on the 12th and 279 of 279 on the 13th.", "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 611 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Qingyang, 1937: Thursday 13 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": "1937-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-13", "confidence": "determinate" } ], "quote": "In Qingyang, Akṣaya Tṛtīyā 1937 falls on Thursday 13 May. Tṛtīyā runs from 13:54 on Wed 12 May to 10:36 on Thu 13 May and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-05-13", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6331, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-05-13T10:36:23+08:00", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 }, "end": { "local": "1937-05-14T07:45:54+08:00", "utc": "1937-05-13T23:45:54Z", "ms": -1029888846421.4944 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-13T10:36:23+08:00", "utc": "1937-05-13T02:36:23Z", "ms": -1029965016847.894 }, "end": { "local": "1937-05-14T07:45:54+08:00", "utc": "1937-05-13T23:45:54Z", "ms": -1029888846421.4944 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-13", "window": { "start": { "local": "1937-05-13T12:21:54+08:00", "utc": "1937-05-13T04:21:54Z", "ms": -1029958685582.1841 }, "end": { "local": "1937-05-13T13:09:54+08:00", "utc": "1937-05-13T05:09:54Z", "ms": -1029955805582.1841 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-14", "window": { "start": { "local": "1937-05-14T12:21:54+08:00", "utc": "1937-05-14T04:21:54Z", "ms": -1029872286381.5715 }, "end": { "local": "1937-05-14T13:09:54+08:00", "utc": "1937-05-14T05:09:54Z", "ms": -1029869406381.5715 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:36 on Thu 13 May to 07:46 on Fri 14 May.", "fact": "1937-05-13T02:36:23Z → 1937-05-13T23:45:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 13th, 12:22–13:10 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 6331 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1937: Thursday 13 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": "1937-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-13", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1937 falls on Thursday 13 May. Caturthī runs from 10:36 on Thu 13 May to 07:46 on Fri 14 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-05-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16560, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-05-14T07:45:54+08:00", "utc": "1937-05-13T23:45:54Z", "ms": -1029888846421.4944 }, "end": { "local": "1937-05-15T05:29:49+08:00", "utc": "1937-05-14T21:29:49Z", "ms": -1029810611393.0624 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-14T07:45:54+08:00", "utc": "1937-05-13T23:45:54Z", "ms": -1029888846421.4944 }, "end": { "local": "1937-05-15T05:29:49+08:00", "utc": "1937-05-14T21:29:49Z", "ms": -1029810611393.0624 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-14", "window": { "start": { "local": "1937-05-14T12:21:54+08:00", "utc": "1937-05-14T04:21:54Z", "ms": -1029872286381.5715 }, "end": { "local": "1937-05-14T13:09:54+08:00", "utc": "1937-05-14T05:09:54Z", "ms": -1029869406381.5715 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-15", "window": { "start": { "local": "1937-05-15T12:21:53+08:00", "utc": "1937-05-15T04:21:53Z", "ms": -1029785886635.1875 }, "end": { "local": "1937-05-15T13:09:53+08:00", "utc": "1937-05-15T05:09:53Z", "ms": -1029783006635.1875 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 07:46 on Fri 14 May to 05:30 on Sat 15 May.", "fact": "1937-05-13T23:45:54Z → 1937-05-14T21:29:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 14th, 12:22–13:10 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: unstated → only-day · margin 16560 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Qingyang, 1937: Friday 14 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": "1937-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-14", "confidence": "determinate" } ], "quote": "In Qingyang, Śaṅkara Jayantī 1937 falls on Friday 14 May. Pañcamī runs from 07:46 on Fri 14 May to 05:30 on Sat 15 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30509, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-05-16T03:53:24+08:00", "utc": "1937-05-15T19:53:24Z", "ms": -1029729995510.8934 }, "end": { "local": "1937-05-17T02:59:46+08:00", "utc": "1937-05-16T18:59:46Z", "ms": -1029646813905.214 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-16T03:53:24+08:00", "utc": "1937-05-15T19:53:24Z", "ms": -1029729995510.8934 }, "end": { "local": "1937-05-17T02:59:46+08:00", "utc": "1937-05-16T18:59:46Z", "ms": -1029646813905.214 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-16", "window": { "start": { "local": "1937-05-16T12:21:54+08:00", "utc": "1937-05-16T04:21:54Z", "ms": -1029699486347.5608 }, "end": { "local": "1937-05-16T13:09:54+08:00", "utc": "1937-05-16T05:09:54Z", "ms": -1029696606347.5608 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-17", "window": { "start": { "local": "1937-05-17T12:21:54+08:00", "utc": "1937-05-17T04:21:54Z", "ms": -1029613085522.7006 }, "end": { "local": "1937-05-17T13:09:54+08:00", "utc": "1937-05-17T05:09:54Z", "ms": -1029610205522.7006 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 03:53 on Sun 16 May to 03:00 on Mon 17 May.", "fact": "1937-05-15T19:53:24Z → 1937-05-16T18:59:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 16th, 12:22–13:10 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30509 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Qingyang, 1937: Sunday 16 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": "1937-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-16", "confidence": "determinate" } ], "quote": "In Qingyang, Gaṅgotpatti (Ganga Saptami) 1937 falls on Sunday 16 May. Saptamī runs from 03:53 on Sun 16 May to 03:00 on Mon 17 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-05-21", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1668, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-05-20T04:28:59+08:00", "utc": "1937-05-19T20:28:59Z", "ms": -1029382260701.3312 }, "end": { "local": "1937-05-21T06:08:36+08:00", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-20T04:28:59+08:00", "utc": "1937-05-19T20:28:59Z", "ms": -1029382260701.3312 }, "end": { "local": "1937-05-21T06:08:36+08:00", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-05-20", "window": { "start": { "local": "1937-05-20T05:41:27+08:00", "utc": "1937-05-19T21:41:27Z", "ms": -1029377912754.0115 }, "end": { "local": "1937-05-20T05:41:27+08:00", "utc": "1937-05-19T21:41:27Z", "ms": -1029377912754.0115 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-05-21", "window": { "start": { "local": "1937-05-21T05:40:47+08:00", "utc": "1937-05-20T21:40:47Z", "ms": -1029291552693.1036 }, "end": { "local": "1937-05-21T05:40:47+08:00", "utc": "1937-05-20T21:40:47Z", "ms": -1029291552693.1036 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:29 on Thu 20 May to 06:09 on Fri 21 May.", "fact": "1937-05-19T20:28:59Z → 1937-05-20T22:08:36Z" }, { "step": "kaala", "text": "Sunrise is at 05:41 on the 20th and 05:41 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 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both sunrises qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 1668 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Qingyang, 1937: Friday 21 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": "1937-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-21", "confidence": "determinate" } ], "quote": "In Qingyang, Mohinī Ekādaśī 1937 falls on Friday 21 May. Ekādaśī runs from 04:29 on Thu 20 May to 06:09 on Fri 21 May and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-05-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14977, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-05-21T06:08:36+08:00", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 }, "end": { "local": "1937-05-22T08:12:29+08:00", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-21T06:08:36+08:00", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 }, "end": { "local": "1937-05-22T08:12:29+08:00", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-21", "window": { "start": { "local": "1937-05-21T12:22:03+08:00", "utc": "1937-05-21T04:22:03Z", "ms": -1029267476926.6666 }, "end": { "local": "1937-05-21T13:10:03+08:00", "utc": "1937-05-21T05:10:03Z", "ms": -1029264596926.6666 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-22", "window": { "start": { "local": "1937-05-22T12:22:07+08:00", "utc": "1937-05-22T04:22:07Z", "ms": -1029181073474.0471 }, "end": { "local": "1937-05-22T13:10:07+08:00", "utc": "1937-05-22T05:10:07Z", "ms": -1029178193474.0471 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 06:09 on Fri 21 May to 08:12 on Sat 22 May.", "fact": "1937-05-20T22:08:36Z → 1937-05-22T00:12:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 21st, 12:22–13:10 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 14977 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Qingyang, 1937: Friday 21 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": "1937-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-21", "confidence": "determinate" } ], "quote": "In Qingyang, Paraśurāma Dvādaśī 1937 falls on Friday 21 May. Dvādaśī runs from 06:09 on Fri 21 May to 08:12 on Sat 22 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14977, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-05-21T06:08:36+08:00", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 }, "end": { "local": "1937-05-22T08:12:29+08:00", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-21T06:08:36+08:00", "utc": "1937-05-20T22:08:36Z", "ms": -1029289884331.0549 }, "end": { "local": "1937-05-22T08:12:29+08:00", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-21", "window": { "start": { "local": "1937-05-21T12:22:03+08:00", "utc": "1937-05-21T04:22:03Z", "ms": -1029267476926.6666 }, "end": { "local": "1937-05-21T13:10:03+08:00", "utc": "1937-05-21T05:10:03Z", "ms": -1029264596926.6666 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-22", "window": { "start": { "local": "1937-05-22T12:22:07+08:00", "utc": "1937-05-22T04:22:07Z", "ms": -1029181073474.0471 }, "end": { "local": "1937-05-22T13:10:07+08:00", "utc": "1937-05-22T05:10:07Z", "ms": -1029178193474.0471 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 06:09 on Fri 21 May to 08:12 on Sat 22 May.", "fact": "1937-05-20T22:08:36Z → 1937-05-22T00:12:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 21st, 12:22–13:10 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 14977 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Qingyang, 1937: Friday 21 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": "1937-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-21", "confidence": "determinate" } ], "quote": "In Qingyang, Rukmiṇī Dvādaśī 1937 falls on Friday 21 May. Dvādaśī runs from 06:09 on Fri 21 May to 08:12 on Sat 22 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/pradosha-vrata?on=1937-05-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33568, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-05-22T08:12:29+08:00", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 }, "end": { "local": "1937-05-23T10:33:21+08:00", "utc": "1937-05-23T02:33:21Z", "ms": -1029101198791.2909 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-22T08:12:29+08:00", "utc": "1937-05-22T00:12:29Z", "ms": -1029196050837.0631 }, "end": { "local": "1937-05-23T10:33:21+08:00", "utc": "1937-05-23T02:33:21Z", "ms": -1029101198791.2909 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-05-22", "window": { "start": { "local": "1937-05-22T19:52:04+08:00", "utc": "1937-05-22T11:52:04Z", "ms": -1029154075856.2423 }, "end": { "local": "1937-05-22T21:10:24+08:00", "utc": "1937-05-22T13:10:24Z", "ms": -1029149376132.9344 } }, "covered_min": 78, "window_min": 78, "qualifies": true }, { "local_date": "1937-05-23", "window": { "start": { "local": "1937-05-23T19:52:49+08:00", "utc": "1937-05-23T11:52:49Z", "ms": -1029067631087.7222 }, "end": { "local": "1937-05-23T21:10:58+08:00", "utc": "1937-05-23T13:10:58Z", "ms": -1029062942035.177 } }, "covered_min": 0, "window_min": 78, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:12 on Sat 22 May to 10:33 on Sun 23 May.", "fact": "1937-05-22T00:12:29Z → 1937-05-23T02:33:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:52–21:10 on the 22nd, 19:53–21:11 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 78 of 78 minutes on the 22nd and 0 of 78 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33568 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Saturday 22 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": "1937-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-22", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Saturday 22 May. Trayodaśī runs from 08:12 on Sat 22 May to 10:33 on Sun 23 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-05-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24572, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-05-23T10:33:21+08:00", "utc": "1937-05-23T02:33:21Z", "ms": -1029101198791.2909 }, "end": { "local": "1937-05-24T13:04:01+08:00", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-23T10:33:21+08:00", "utc": "1937-05-23T02:33:21Z", "ms": -1029101198791.2909 }, "end": { "local": "1937-05-24T13:04:01+08:00", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-05-23", "window": { "start": { "local": "1937-05-23T19:52:49+08:00", "utc": "1937-05-23T11:52:49Z", "ms": -1029067631087.7222 }, "end": { "local": "1937-05-23T21:10:58+08:00", "utc": "1937-05-23T13:10:58Z", "ms": -1029062942035.177 } }, "covered_min": 78, "window_min": 78, "qualifies": true }, { "local_date": "1937-05-24", "window": { "start": { "local": "1937-05-24T19:53:33+08:00", "utc": "1937-05-24T11:53:33Z", "ms": -1028981186884.3464 }, "end": { "local": "1937-05-24T21:11:32+08:00", "utc": "1937-05-24T13:11:32Z", "ms": -1028976508214.5527 } }, "covered_min": 0, "window_min": 78, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:33 on Sun 23 May to 13:04 on Mon 24 May.", "fact": "1937-05-23T02:33:21Z → 1937-05-24T05:04:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:53–21:11 on the 23rd, 19:54–21:12 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 78 of 78 minutes on the 23rd and 0 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: paraviddha → only-day · margin 24572 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Qingyang, 1937: Sunday 23 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": "1937-05-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-23", "confidence": "determinate" } ], "quote": "In Qingyang, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1937 falls on Sunday 23 May. Caturdaśī runs from 10:33 on Sun 23 May to 13:04 on Mon 24 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-25", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 374, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-05-24T13:04:01+08:00", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 }, "end": { "local": "1937-05-25T15:37:35+08:00", "utc": "1937-05-25T07:37:35Z", "ms": -1028910145122.765 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-24T13:04:01+08:00", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 }, "end": { "local": "1937-05-25T15:37:35+08:00", "utc": "1937-05-25T07:37:35Z", "ms": -1028910145122.765 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-24", "window": { "start": { "local": "1937-05-24T12:22:15+08:00", "utc": "1937-05-24T04:22:15Z", "ms": -1029008265038.9901 }, "end": { "local": "1937-05-24T13:10:15+08:00", "utc": "1937-05-24T05:10:15Z", "ms": -1029005385038.9901 } }, "covered_min": 6, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-25", "window": { "start": { "local": "1937-05-25T12:22:20+08:00", "utc": "1937-05-25T04:22:20Z", "ms": -1028921860068.6377 }, "end": { "local": "1937-05-25T13:10:20+08:00", "utc": "1937-05-25T05:10:20Z", "ms": -1028918980068.6377 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:04 on Mon 24 May to 15:38 on Tue 25 May.", "fact": "1937-05-24T05:04:01Z → 1937-05-25T07:37:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 24th, 12:22–13:10 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 6 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": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 374 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Qingyang, 1937: Tuesday 25 May.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1937-05-25", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-25", "confidence": "boundary" } ], "quote": "In Qingyang, Buddha Pūrṇimā 1937 falls on Tuesday 25 May. Pūrṇimā runs from 13:04 on Mon 24 May to 15:38 on Tue 25 May and covers all of madhyāhna that midday. It also reaches the previous midday for 6 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 374, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-05-24T13:04:01+08:00", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 }, "end": { "local": "1937-05-25T15:37:35+08:00", "utc": "1937-05-25T07:37:35Z", "ms": -1028910145122.765 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-24T13:04:01+08:00", "utc": "1937-05-24T05:04:01Z", "ms": -1029005759223.4957 }, "end": { "local": "1937-05-25T15:37:35+08:00", "utc": "1937-05-25T07:37:35Z", "ms": -1028910145122.765 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-05-24", "window": { "start": { "local": "1937-05-24T12:22:15+08:00", "utc": "1937-05-24T04:22:15Z", "ms": -1029008265038.9901 }, "end": { "local": "1937-05-24T13:10:15+08:00", "utc": "1937-05-24T05:10:15Z", "ms": -1029005385038.9901 } }, "covered_min": 6, "window_min": 48, "qualifies": true }, { "local_date": "1937-05-25", "window": { "start": { "local": "1937-05-25T12:22:20+08:00", "utc": "1937-05-25T04:22:20Z", "ms": -1028921860068.6377 }, "end": { "local": "1937-05-25T13:10:20+08:00", "utc": "1937-05-25T05:10:20Z", "ms": -1028918980068.6377 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:04 on Mon 24 May to 15:38 on Tue 25 May.", "fact": "1937-05-24T05:04:01Z → 1937-05-25T07:37:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 24th, 12:22–13:10 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 6 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": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 374 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Qingyang, 1937: Tuesday 25 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": "1937-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-25", "confidence": "determinate" } ], "quote": "In Qingyang, Sampat Gaurī Vrata 1937 falls on Tuesday 25 May. Pūrṇimā runs from 13:04 on Mon 24 May to 15:38 on Tue 25 May and covers all of madhyāhna that midday. It also reaches the previous midday for 6 minutes; by the rule the second midday is taken.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-05-29", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-05-29", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 240, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-05-28T22:29:16+08:00", "utc": "1937-05-28T14:29:16Z", "ms": -1028626244158.3646 }, "end": { "local": "1937-05-30T00:07:54+08:00", "utc": "1937-05-29T16:07:54Z", "ms": -1028533926364.639 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-05-28T22:29:16+08:00", "utc": "1937-05-28T14:29:16Z", "ms": -1028626244158.3646 }, "end": { "local": "1937-05-30T00:07:54+08:00", "utc": "1937-05-29T16:07:54Z", "ms": -1028533926364.639 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-05-28", "window": { "start": { "local": "1937-05-28T22:25:16+08:00", "utc": "1937-05-28T14:25:16Z", "ms": -1028626484160.3007 }, "end": { "local": "1937-05-28T22:25:16+08:00", "utc": "1937-05-28T14:25:16Z", "ms": -1028626484160.3007 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-05-29", "window": { "start": { "local": "1937-05-29T23:04:12+08:00", "utc": "1937-05-29T15:04:12Z", "ms": -1028537747672.9885 }, "end": { "local": "1937-05-29T23:04:12+08:00", "utc": "1937-05-29T15:04:12Z", "ms": -1028537747672.9885 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:29 on Fri 28 May to 00:08 on Sun 30 May.", "fact": "1937-05-28T14:29:16Z → 1937-05-29T16:07:54Z" }, { "step": "kaala", "text": "Moonrise is at 22:25 on the 28th and 23:04 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 240 s < 300 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Saturday 29 May.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-05-29", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-05-29", "confidence": "boundary" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Saturday 29 May. Caturthī runs from 22:29 on Fri 28 May to 00:08 on Sun 30 May and is current at moonrise that day. It is 4 min 00 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-05-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-06-05", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29819, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-06-04T21:17:03+08:00", "utc": "1937-06-04T13:17:03Z", "ms": -1028025776898.5808 }, "end": { "local": "1937-06-05T18:35:49+08:00", "utc": "1937-06-05T10:35:49Z", "ms": -1027949051082.8262 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-04T21:17:03+08:00", "utc": "1937-06-04T13:17:03Z", "ms": -1028025776898.5808 }, "end": { "local": "1937-06-05T18:35:49+08:00", "utc": "1937-06-05T10:35:49Z", "ms": -1027949051082.8262 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-06-05", "window": { "start": { "local": "1937-06-05T05:34:02+08:00", "utc": "1937-06-04T21:34:02Z", "ms": -1027995957840.4667 }, "end": { "local": "1937-06-05T05:34:02+08:00", "utc": "1937-06-04T21:34:02Z", "ms": -1027995957840.4667 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-06-06", "window": { "start": { "local": "1937-06-06T05:33:49+08:00", "utc": "1937-06-05T21:33:49Z", "ms": -1027909571375.2783 }, "end": { "local": "1937-06-06T05:33:49+08:00", "utc": "1937-06-05T21:33:49Z", "ms": -1027909571375.2783 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:17 on Fri 4 Jun to 18:36 on Sat 5 Jun.", "fact": "1937-06-04T13:17:03Z → 1937-06-05T10:35:49Z" }, { "step": "kaala", "text": "Sunrise is at 05:34 on the 5th and 05:34 on the 6th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 5th and is not on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29819 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Qingyang, 1937: Saturday 5 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": "1937-06-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-05", "confidence": "determinate" } ], "quote": "In Qingyang, Aparā Ekādaśī 1937 falls on Saturday 5 June. Ekādaśī runs from 21:17 on Fri 4 Jun to 18:36 on Sat 5 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-06-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-06-06", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16466, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-06-06T15:27:35+08:00", "utc": "1937-06-06T07:27:35Z", "ms": -1027873944725.8585 }, "end": { "local": "1937-06-07T12:00:10+08:00", "utc": "1937-06-07T04:00:10Z", "ms": -1027799990350.7848 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-06T15:27:35+08:00", "utc": "1937-06-06T07:27:35Z", "ms": -1027873944725.8585 }, "end": { "local": "1937-06-07T12:00:10+08:00", "utc": "1937-06-07T04:00:10Z", "ms": -1027799990350.7848 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-06-06", "window": { "start": { "local": "1937-06-06T20:02:02+08:00", "utc": "1937-06-06T12:02:02Z", "ms": -1027857478346.0273 }, "end": { "local": "1937-06-06T21:18:14+08:00", "utc": "1937-06-06T13:18:14Z", "ms": -1027852905660.0625 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "1937-06-07", "window": { "start": { "local": "1937-06-07T20:02:34+08:00", "utc": "1937-06-07T12:02:34Z", "ms": -1027771045539.1616 }, "end": { "local": "1937-06-07T21:18:41+08:00", "utc": "1937-06-07T13:18:41Z", "ms": -1027766478577.408 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:28 on Sun 6 Jun to 12:00 on Mon 7 Jun.", "fact": "1937-06-06T07:27:35Z → 1937-06-07T04:00:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:02–21:18 on the 6th, 20:03–21:19 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 76 of 76 minutes on the 6th and 0 of 76 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 16466 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Sunday 6 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": "1937-06-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-06", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Sunday 6 June. Trayodaśī runs from 15:28 on Sun 6 Jun to 12:00 on Mon 7 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-06-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-06-07", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25812, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-06-07T12:00:10+08:00", "utc": "1937-06-07T04:00:10Z", "ms": -1027799990350.7848 }, "end": { "local": "1937-06-08T08:22:12+08:00", "utc": "1937-06-08T00:22:12Z", "ms": -1027726667805.5331 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-07T12:00:10+08:00", "utc": "1937-06-07T04:00:10Z", "ms": -1027799990350.7848 }, "end": { "local": "1937-06-08T08:22:12+08:00", "utc": "1937-06-08T00:22:12Z", "ms": -1027726667805.5331 } }, "kaala": "nishita", "days": [ { "local_date": "1937-06-06", "window": { "start": { "local": "1937-06-07T00:23:49+08:00", "utc": "1937-06-06T16:23:49Z", "ms": -1027841770773.6592 }, "end": { "local": "1937-06-07T01:11:49+08:00", "utc": "1937-06-06T17:11:49Z", "ms": -1027838890773.6592 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-06-07", "window": { "start": { "local": "1937-06-08T00:24:01+08:00", "utc": "1937-06-07T16:24:01Z", "ms": -1027755359432.5854 }, "end": { "local": "1937-06-08T01:12:01+08:00", "utc": "1937-06-07T17:12:01Z", "ms": -1027752479432.5854 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:00 on Mon 7 Jun to 08:22 on Tue 8 Jun.", "fact": "1937-06-07T04:00:10Z → 1937-06-08T00:22:12Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:24–01:12 on the 6th, 00:24–01:12 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 25812 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Monday 7 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": "1937-06-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-07", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Monday 7 June. Caturdaśī runs from 12:00 on Mon 7 Jun to 08:22 on Tue 8 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-06-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21493, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-06-10T21:58:10+08:00", "utc": "1937-06-10T13:58:10Z", "ms": -1027504910390.4188 }, "end": { "local": "1937-06-11T19:11:04+08:00", "utc": "1937-06-11T11:11:04Z", "ms": -1027428536495.6067 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-10T21:58:10+08:00", "utc": "1937-06-10T13:58:10Z", "ms": -1027504910390.4188 }, "end": { "local": "1937-06-11T19:11:04+08:00", "utc": "1937-06-11T11:11:04Z", "ms": -1027428536495.6067 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-06-10", "window": { "start": { "local": "1937-06-10T12:24:39+08:00", "utc": "1937-06-10T04:24:39Z", "ms": -1027539321176.6991 }, "end": { "local": "1937-06-10T13:12:39+08:00", "utc": "1937-06-10T05:12:39Z", "ms": -1027536441176.6991 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-06-11", "window": { "start": { "local": "1937-06-11T12:24:50+08:00", "utc": "1937-06-11T04:24:50Z", "ms": -1027452909626.338 }, "end": { "local": "1937-06-11T13:12:50+08:00", "utc": "1937-06-11T05:12:50Z", "ms": -1027450029626.338 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 21:58 on Thu 10 Jun to 19:11 on Fri 11 Jun.", "fact": "1937-06-10T13:58:10Z → 1937-06-11T11:11:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 10th, 12:25–13:13 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 48 of 48 on the 11th.", "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 21493 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Qingyang, 1937: Friday 11 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": "1937-06-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-11", "confidence": "determinate" } ], "quote": "In Qingyang, Rambhā Tṛtīyā 1937 falls on Friday 11 June. Tṛtīyā runs from 21:58 on Thu 10 Jun to 19:11 on Fri 11 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-06-12", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13534, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-06-11T19:11:04+08:00", "utc": "1937-06-11T11:11:04Z", "ms": -1027428536495.6067 }, "end": { "local": "1937-06-12T16:58:36+08:00", "utc": "1937-06-12T08:58:36Z", "ms": -1027350084170.8761 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-11T19:11:04+08:00", "utc": "1937-06-11T11:11:04Z", "ms": -1027428536495.6067 }, "end": { "local": "1937-06-12T16:58:36+08:00", "utc": "1937-06-12T08:58:36Z", "ms": -1027350084170.8761 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-06-11", "window": { "start": { "local": "1937-06-11T12:24:50+08:00", "utc": "1937-06-11T04:24:50Z", "ms": -1027452909626.338 }, "end": { "local": "1937-06-11T13:12:50+08:00", "utc": "1937-06-11T05:12:50Z", "ms": -1027450029626.338 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-06-12", "window": { "start": { "local": "1937-06-12T12:25:02+08:00", "utc": "1937-06-12T04:25:02Z", "ms": -1027366497877.0078 }, "end": { "local": "1937-06-12T13:13:02+08:00", "utc": "1937-06-12T05:13:02Z", "ms": -1027363617877.0078 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:11 on Fri 11 Jun to 16:59 on Sat 12 Jun.", "fact": "1937-06-11T11:11:04Z → 1937-06-12T08:58:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 11th, 12:25–13:13 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13534 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1937: Saturday 12 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": "1937-06-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-12", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1937 falls on Saturday 12 June. Caturthī runs from 19:11 on Fri 11 Jun to 16:59 on Sat 12 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-06-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5322, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-06-13T15:27:27+08:00", "utc": "1937-06-13T07:27:27Z", "ms": -1027269153135.2253 }, "end": { "local": "1937-06-14T14:42:08+08:00", "utc": "1937-06-14T06:42:08Z", "ms": -1027185472230.5414 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-13T15:27:27+08:00", "utc": "1937-06-13T07:27:27Z", "ms": -1027269153135.2253 }, "end": { "local": "1937-06-14T14:42:08+08:00", "utc": "1937-06-14T06:42:08Z", "ms": -1027185472230.5414 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-06-13", "window": { "start": { "local": "1937-06-13T12:25:14+08:00", "utc": "1937-06-13T04:25:14Z", "ms": -1027280085953.8154 }, "end": { "local": "1937-06-13T13:13:14+08:00", "utc": "1937-06-13T05:13:14Z", "ms": -1027277205953.8154 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-06-14", "window": { "start": { "local": "1937-06-14T12:25:26+08:00", "utc": "1937-06-14T04:25:26Z", "ms": -1027193673880.8157 }, "end": { "local": "1937-06-14T13:13:26+08:00", "utc": "1937-06-14T05:13:26Z", "ms": -1027190793880.8157 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 15:27 on Sun 13 Jun to 14:42 on Mon 14 Jun.", "fact": "1937-06-13T07:27:27Z → 1937-06-14T06:42:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 13th, 12:25–13:13 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5322 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Qingyang, 1937: Monday 14 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": "1937-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-14", "confidence": "determinate" } ], "quote": "In Qingyang, Araṇya Gaurī Vrata 1937 falls on Monday 14 June. Ṣaṣṭhī runs from 15:27 on Sun 13 Jun to 14:42 on Mon 14 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5322, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-06-13T15:27:27+08:00", "utc": "1937-06-13T07:27:27Z", "ms": -1027269153135.2253 }, "end": { "local": "1937-06-14T14:42:08+08:00", "utc": "1937-06-14T06:42:08Z", "ms": -1027185472230.5414 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-13T15:27:27+08:00", "utc": "1937-06-13T07:27:27Z", "ms": -1027269153135.2253 }, "end": { "local": "1937-06-14T14:42:08+08:00", "utc": "1937-06-14T06:42:08Z", "ms": -1027185472230.5414 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-06-13", "window": { "start": { "local": "1937-06-13T12:25:14+08:00", "utc": "1937-06-13T04:25:14Z", "ms": -1027280085953.8154 }, "end": { "local": "1937-06-13T13:13:14+08:00", "utc": "1937-06-13T05:13:14Z", "ms": -1027277205953.8154 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-06-14", "window": { "start": { "local": "1937-06-14T12:25:26+08:00", "utc": "1937-06-14T04:25:26Z", "ms": -1027193673880.8157 }, "end": { "local": "1937-06-14T13:13:26+08:00", "utc": "1937-06-14T05:13:26Z", "ms": -1027190793880.8157 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 15:27 on Sun 13 Jun to 14:42 on Mon 14 Jun.", "fact": "1937-06-13T07:27:27Z → 1937-06-14T06:42:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 13th, 12:25–13:13 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5322 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Qingyang, 1937: Monday 14 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": "1937-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-14", "confidence": "determinate" } ], "quote": "In Qingyang, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1937 falls on Monday 14 June. Ṣaṣṭhī runs from 15:27 on Sun 13 Jun to 14:42 on Mon 14 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-06-19", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29424, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-06-18T19:01:02+08:00", "utc": "1937-06-18T11:01:02Z", "ms": -1026824337825.3562 }, "end": { "local": "1937-06-19T21:23:09+08:00", "utc": "1937-06-19T13:23:09Z", "ms": -1026729410981.1083 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-18T19:01:02+08:00", "utc": "1937-06-18T11:01:02Z", "ms": -1026824337825.3562 }, "end": { "local": "1937-06-19T21:23:09+08:00", "utc": "1937-06-19T13:23:09Z", "ms": -1026729410981.1083 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-06-19", "window": { "start": { "local": "1937-06-19T05:33:24+08:00", "utc": "1937-06-18T21:33:24Z", "ms": -1026786395961.0676 }, "end": { "local": "1937-06-19T05:33:24+08:00", "utc": "1937-06-18T21:33:24Z", "ms": -1026786395961.0676 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-06-20", "window": { "start": { "local": "1937-06-20T05:33:33+08:00", "utc": "1937-06-19T21:33:33Z", "ms": -1026699986691.853 }, "end": { "local": "1937-06-20T05:33:33+08:00", "utc": "1937-06-19T21:33:33Z", "ms": -1026699986691.853 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:01 on Fri 18 Jun to 21:23 on Sat 19 Jun.", "fact": "1937-06-18T11:01:02Z → 1937-06-19T13:23:09Z" }, { "step": "kaala", "text": "Sunrise is at 05:33 on the 19th and 05:34 on the 20th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 19th and is not on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29424 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Qingyang, 1937: Saturday 19 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": "1937-06-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-19", "confidence": "determinate" } ], "quote": "In Qingyang, Nirjalā Ekādaśī 1937 falls on Saturday 19 June. Ekādaśī runs from 19:01 on Fri 18 Jun to 21:23 on Sat 19 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-06-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29321, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-06-19T21:23:09+08:00", "utc": "1937-06-19T13:23:09Z", "ms": -1026729410981.1083 }, "end": { "local": "1937-06-20T23:55:46+08:00", "utc": "1937-06-20T15:55:46Z", "ms": -1026633853696.3707 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-19T21:23:09+08:00", "utc": "1937-06-19T13:23:09Z", "ms": -1026729410981.1083 }, "end": { "local": "1937-06-20T23:55:46+08:00", "utc": "1937-06-20T15:55:46Z", "ms": -1026633853696.3707 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-06-19", "window": { "start": { "local": "1937-06-19T12:26:28+08:00", "utc": "1937-06-19T04:26:28Z", "ms": -1026761612058.4312 }, "end": { "local": "1937-06-19T13:14:28+08:00", "utc": "1937-06-19T05:14:28Z", "ms": -1026758732058.4312 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-06-20", "window": { "start": { "local": "1937-06-20T12:26:40+08:00", "utc": "1937-06-20T04:26:40Z", "ms": -1026675199553.8568 }, "end": { "local": "1937-06-20T13:14:40+08:00", "utc": "1937-06-20T05:14:40Z", "ms": -1026672319553.8568 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 21:23 on Sat 19 Jun to 23:56 on Sun 20 Jun.", "fact": "1937-06-19T13:23:09Z → 1937-06-20T15:55:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 19th, 12:27–13:15 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 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 29321 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Qingyang, 1937: Sunday 20 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": "1937-06-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-20", "confidence": "determinate" } ], "quote": "In Qingyang, Śrī Rāma Dvādaśī 1937 falls on Sunday 20 June. Dvādaśī runs from 21:23 on Sat 19 Jun to 23:56 on Sun 20 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/pradosha-vrata?on=1937-06-21", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9151, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-06-20T23:55:46+08:00", "utc": "1937-06-20T15:55:46Z", "ms": -1026633853696.3707 }, "end": { "local": "1937-06-22T02:28:22+08:00", "utc": "1937-06-21T18:28:22Z", "ms": -1026538298203.3766 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-20T23:55:46+08:00", "utc": "1937-06-20T15:55:46Z", "ms": -1026633853696.3707 }, "end": { "local": "1937-06-22T02:28:22+08:00", "utc": "1937-06-21T18:28:22Z", "ms": -1026538298203.3766 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-06-20", "window": { "start": { "local": "1937-06-20T20:07:48+08:00", "utc": "1937-06-20T12:07:48Z", "ms": -1026647532415.8606 }, "end": { "local": "1937-06-20T21:23:15+08:00", "utc": "1937-06-20T13:23:15Z", "ms": -1026643004881.8553 } }, "covered_min": 0, "window_min": 75, "qualifies": false }, { "local_date": "1937-06-21", "window": { "start": { "local": "1937-06-21T20:08:02+08:00", "utc": "1937-06-21T12:08:02Z", "ms": -1026561118192.3408 }, "end": { "local": "1937-06-21T21:23:29+08:00", "utc": "1937-06-21T13:23:29Z", "ms": -1026556590918.401 } }, "covered_min": 75, "window_min": 75, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:56 on Sun 20 Jun to 02:28 on Tue 22 Jun.", "fact": "1937-06-20T15:55:46Z → 1937-06-21T18:28:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:08–21:23 on the 20th, 20:08–21:23 on the 21st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 75 minutes on the 20th and 75 of 75 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 9151 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Monday 21 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": "1937-06-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-21", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Monday 21 June. Trayodaśī runs from 23:56 on Sun 20 Jun to 02:28 on Tue 22 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-06-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26895, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-06-23T04:51:57+08:00", "utc": "1937-06-22T20:51:57Z", "ms": -1026443283406.9094 }, "end": { "local": "1937-06-24T06:59:30+08:00", "utc": "1937-06-23T22:59:30Z", "ms": -1026349229671.819 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-23T04:51:57+08:00", "utc": "1937-06-22T20:51:57Z", "ms": -1026443283406.9094 }, "end": { "local": "1937-06-24T06:59:30+08:00", "utc": "1937-06-23T22:59:30Z", "ms": -1026349229671.819 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-06-22", "window": { "start": { "local": "1937-06-22T20:08:14+08:00", "utc": "1937-06-22T12:08:14Z", "ms": -1026474705506.3843 }, "end": { "local": "1937-06-22T21:23:42+08:00", "utc": "1937-06-22T13:23:42Z", "ms": -1026470178091.3202 } }, "covered_min": 0, "window_min": 75, "qualifies": false }, { "local_date": "1937-06-23", "window": { "start": { "local": "1937-06-23T20:08:26+08:00", "utc": "1937-06-23T12:08:26Z", "ms": -1026388294377.7853 }, "end": { "local": "1937-06-23T21:23:54+08:00", "utc": "1937-06-23T13:23:54Z", "ms": -1026383766420.6276 } }, "covered_min": 75, "window_min": 75, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:52 on Wed 23 Jun to 07:00 on Thu 24 Jun.", "fact": "1937-06-22T20:51:57Z → 1937-06-23T22:59:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:08–21:24 on the 22nd, 20:08–21:24 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 75 minutes on the 22nd and 75 of 75 on the 23rd.", "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 26895 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Qingyang, 1937: Wednesday 23 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": "1937-06-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-23", "confidence": "determinate" } ], "quote": "In Qingyang, Vaṭa Sāvitrī Vrata 1937 falls on Wednesday 23 June. Pūrṇimā runs from 04:52 on Wed 23 Jun to 07:00 on Thu 24 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-06-27", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-06-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40373, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-06-27T11:02:38+08:00", "utc": "1937-06-27T03:02:38Z", "ms": -1026075441743.5459 }, "end": { "local": "1937-06-28T11:28:48+08:00", "utc": "1937-06-28T03:28:48Z", "ms": -1025987472318.4009 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-06-27T11:02:38+08:00", "utc": "1937-06-27T03:02:38Z", "ms": -1026075441743.5459 }, "end": { "local": "1937-06-28T11:28:48+08:00", "utc": "1937-06-28T03:28:48Z", "ms": -1025987472318.4009 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-06-27", "window": { "start": { "local": "1937-06-27T22:15:32+08:00", "utc": "1937-06-27T14:15:32Z", "ms": -1026035068416.2471 }, "end": { "local": "1937-06-27T22:15:32+08:00", "utc": "1937-06-27T14:15:32Z", "ms": -1026035068416.2471 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-06-28", "window": { "start": { "local": "1937-06-28T22:47:18+08:00", "utc": "1937-06-28T14:47:18Z", "ms": -1025946761606.9817 }, "end": { "local": "1937-06-28T22:47:18+08:00", "utc": "1937-06-28T14:47:18Z", "ms": -1025946761606.9817 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:03 on Sun 27 Jun to 11:29 on Mon 28 Jun.", "fact": "1937-06-27T03:02:38Z → 1937-06-28T03:28:48Z" }, { "step": "kaala", "text": "Moonrise is at 22:16 on the 27th and 22:47 on the 28th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 27th and is not on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 40373 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Sunday 27 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": "1937-06-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-06-27", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Sunday 27 June. Caturthī runs from 11:03 on Sun 27 Jun to 11:29 on Mon 28 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-06-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-07-04", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7029, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-07-04T03:41:02+08:00", "utc": "1937-07-03T19:41:02Z", "ms": -1025497137671.8732 }, "end": { "local": "1937-07-05T00:52:12+08:00", "utc": "1937-07-04T16:52:12Z", "ms": -1025420868450.4187 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-04T03:41:02+08:00", "utc": "1937-07-03T19:41:02Z", "ms": -1025497137671.8732 }, "end": { "local": "1937-07-05T00:52:12+08:00", "utc": "1937-07-04T16:52:12Z", "ms": -1025420868450.4187 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-07-04", "window": { "start": { "local": "1937-07-04T05:38:12+08:00", "utc": "1937-07-03T21:38:12Z", "ms": -1025490108381.4176 }, "end": { "local": "1937-07-04T05:38:12+08:00", "utc": "1937-07-03T21:38:12Z", "ms": -1025490108381.4176 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-07-05", "window": { "start": { "local": "1937-07-05T05:38:41+08:00", "utc": "1937-07-04T21:38:41Z", "ms": -1025403678940.412 }, "end": { "local": "1937-07-05T05:38:41+08:00", "utc": "1937-07-04T21:38:41Z", "ms": -1025403678940.412 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:41 on Sun 4 Jul to 00:52 on Mon 5 Jul.", "fact": "1937-07-03T19:41:02Z → 1937-07-04T16:52:12Z" }, { "step": "kaala", "text": "Sunrise is at 05:38 on the 4th and 05:39 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7029 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Qingyang, 1937: Sunday 4 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": "1937-07-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-04", "confidence": "determinate" } ], "quote": "In Qingyang, Yoginī Ekādaśī 1937 falls on Sunday 4 July. Ekādaśī runs from 03:41 on Sun 4 Jul to 00:52 on Mon 5 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-07-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-07-05", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-05", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1393, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-07-05T21:47:50+08:00", "utc": "1937-07-05T13:47:50Z", "ms": -1025345529648.2733 }, "end": { "local": "1937-07-06T18:34:35+08:00", "utc": "1937-07-06T10:34:35Z", "ms": -1025270724883.167 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-05T21:47:50+08:00", "utc": "1937-07-05T13:47:50Z", "ms": -1025345529648.2733 }, "end": { "local": "1937-07-06T18:34:35+08:00", "utc": "1937-07-06T10:34:35Z", "ms": -1025270724883.167 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-07-05", "window": { "start": { "local": "1937-07-05T20:08:32+08:00", "utc": "1937-07-05T12:08:32Z", "ms": -1025351487825.1925 }, "end": { "local": "1937-07-05T21:24:37+08:00", "utc": "1937-07-05T13:24:37Z", "ms": -1025346922568.4362 } }, "covered_min": 0, "window_min": 76, "qualifies": false }, { "local_date": "1937-07-06", "window": { "start": { "local": "1937-07-06T20:08:22+08:00", "utc": "1937-07-06T12:08:22Z", "ms": -1025265098198.722 }, "end": { "local": "1937-07-06T21:24:33+08:00", "utc": "1937-07-06T13:24:33Z", "ms": -1025260527345.592 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:48 on Mon 5 Jul to 18:35 on Tue 6 Jul.", "fact": "1937-07-05T13:47:50Z → 1937-07-06T10:34:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:09–21:25 on the 5th, 20:08–21:25 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 76 minutes on the 5th and 0 of 76 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 1393 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Monday 5 July.", "fact": "confidence: boundary (absent-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": "1937-07-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-05", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Monday 5 July. Trayodaśī runs from 21:48 on Mon 5 Jul to 18:35 on Tue 6 Jul, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-07-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-07-06", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21327, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-07-06T18:34:35+08:00", "utc": "1937-07-06T10:34:35Z", "ms": -1025270724883.167 }, "end": { "local": "1937-07-07T15:20:01+08:00", "utc": "1937-07-07T07:20:01Z", "ms": -1025195998617.4249 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-06T18:34:35+08:00", "utc": "1937-07-06T10:34:35Z", "ms": -1025270724883.167 }, "end": { "local": "1937-07-07T15:20:01+08:00", "utc": "1937-07-07T07:20:01Z", "ms": -1025195998617.4249 } }, "kaala": "nishita", "days": [ { "local_date": "1937-07-06", "window": { "start": { "local": "1937-07-07T00:30:03+08:00", "utc": "1937-07-06T16:30:03Z", "ms": -1025249397499.4847 }, "end": { "local": "1937-07-07T01:18:03+08:00", "utc": "1937-07-06T17:18:03Z", "ms": -1025246517499.4847 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-07-07", "window": { "start": { "local": "1937-07-08T00:30:13+08:00", "utc": "1937-07-07T16:30:13Z", "ms": -1025162987237.7428 }, "end": { "local": "1937-07-08T01:18:13+08:00", "utc": "1937-07-07T17:18:13Z", "ms": -1025160107237.7428 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:35 on Tue 6 Jul to 15:20 on Wed 7 Jul.", "fact": "1937-07-06T10:34:35Z → 1937-07-07T07:20:01Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:30–01:18 on the 6th, 00:30–01:18 on the 7th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21327 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Tuesday 6 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": "1937-07-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-06", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Tuesday 6 July. Caturdaśī runs from 18:35 on Tue 6 Jul to 15:20 on Wed 7 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-07-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11362, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1937-07-09T09:20:53+08:00", "utc": "1937-07-09T01:20:53Z", "ms": -1025044746722.8818 }, "end": { "local": "1937-07-10T06:54:05+08:00", "utc": "1937-07-09T22:54:05Z", "ms": -1024967155296.1118 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-09T09:20:53+08:00", "utc": "1937-07-09T01:20:53Z", "ms": -1025044746722.8818 }, "end": { "local": "1937-07-10T06:54:05+08:00", "utc": "1937-07-09T22:54:05Z", "ms": -1024967155296.1118 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-07-09", "window": { "start": { "local": "1937-07-09T12:30:15+08:00", "utc": "1937-07-09T04:30:15Z", "ms": -1025033385124.3375 }, "end": { "local": "1937-07-09T13:18:15+08:00", "utc": "1937-07-09T05:18:15Z", "ms": -1025030505124.3375 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-07-10", "window": { "start": { "local": "1937-07-10T12:30:23+08:00", "utc": "1937-07-10T04:30:23Z", "ms": -1024946976504.6467 }, "end": { "local": "1937-07-10T13:18:23+08:00", "utc": "1937-07-10T05:18:23Z", "ms": -1024944096504.6467 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 09:21 on Fri 9 Jul to 06:54 on Sat 10 Jul.", "fact": "1937-07-09T01:20:53Z → 1937-07-09T22:54:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 9th, 12:30–13:18 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11362 s" }, { "step": "ruling", "text": "Rathayātrā, Qingyang, 1937: Friday 9 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": "1937-07-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-09", "confidence": "determinate" } ], "quote": "In Qingyang, Rathayātrā 1937 falls on Friday 9 July. Dvitīyā runs from 09:21 on Fri 9 Jul to 06:54 on Sat 10 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-07-11", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26998, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-07-11T05:00:33+08:00", "utc": "1937-07-10T21:00:33Z", "ms": -1024887566528.7878 }, "end": { "local": "1937-07-12T03:47:37+08:00", "utc": "1937-07-11T19:47:37Z", "ms": -1024805542719.5469 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-11T05:00:33+08:00", "utc": "1937-07-10T21:00:33Z", "ms": -1024887566528.7878 }, "end": { "local": "1937-07-12T03:47:37+08:00", "utc": "1937-07-11T19:47:37Z", "ms": -1024805542719.5469 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-07-11", "window": { "start": { "local": "1937-07-11T12:30:32+08:00", "utc": "1937-07-11T04:30:32Z", "ms": -1024860568308.0271 }, "end": { "local": "1937-07-11T13:18:32+08:00", "utc": "1937-07-11T05:18:32Z", "ms": -1024857688308.0271 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-07-12", "window": { "start": { "local": "1937-07-12T12:30:39+08:00", "utc": "1937-07-12T04:30:39Z", "ms": -1024774160554.218 }, "end": { "local": "1937-07-12T13:18:39+08:00", "utc": "1937-07-12T05:18:39Z", "ms": -1024771280554.218 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:01 on Sun 11 Jul to 03:48 on Mon 12 Jul.", "fact": "1937-07-10T21:00:33Z → 1937-07-11T19:47:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 11th, 12:31–13:19 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26998 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1937: Sunday 11 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": "1937-07-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-11", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1937 falls on Sunday 11 July. Caturthī runs from 05:01 on Sun 11 Jul to 03:48 on Mon 12 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-07-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31382, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-07-12T03:47:37+08:00", "utc": "1937-07-11T19:47:37Z", "ms": -1024805542719.5469 }, "end": { "local": "1937-07-13T03:20:28+08:00", "utc": "1937-07-12T19:20:28Z", "ms": -1024720772233.4293 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-12T03:47:37+08:00", "utc": "1937-07-11T19:47:37Z", "ms": -1024805542719.5469 }, "end": { "local": "1937-07-13T03:20:28+08:00", "utc": "1937-07-12T19:20:28Z", "ms": -1024720772233.4293 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-07-12", "window": { "start": { "local": "1937-07-12T12:30:39+08:00", "utc": "1937-07-12T04:30:39Z", "ms": -1024774160554.218 }, "end": { "local": "1937-07-12T13:18:39+08:00", "utc": "1937-07-12T05:18:39Z", "ms": -1024771280554.218 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-07-13", "window": { "start": { "local": "1937-07-13T12:30:47+08:00", "utc": "1937-07-13T04:30:47Z", "ms": -1024687753261.1499 }, "end": { "local": "1937-07-13T13:18:47+08:00", "utc": "1937-07-13T05:18:47Z", "ms": -1024684873261.1499 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:48 on Mon 12 Jul to 03:20 on Tue 13 Jul.", "fact": "1937-07-11T19:47:37Z → 1937-07-12T19:20:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 12th, 12:31–13:19 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31382 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Qingyang, 1937: Monday 12 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": "1937-07-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-12", "confidence": "determinate" } ], "quote": "In Qingyang, Skanda Pañcamī 1937 falls on Monday 12 July. Pañcamī runs from 03:48 on Mon 12 Jul to 03:20 on Tue 13 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27796, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-07-14T03:41:09+08:00", "utc": "1937-07-13T19:41:09Z", "ms": -1024633130951.9089 }, "end": { "local": "1937-07-15T04:47:43+08:00", "utc": "1937-07-14T20:47:43Z", "ms": -1024542736534.2659 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-14T03:41:09+08:00", "utc": "1937-07-13T19:41:09Z", "ms": -1024633130951.9089 }, "end": { "local": "1937-07-15T04:47:43+08:00", "utc": "1937-07-14T20:47:43Z", "ms": -1024542736534.2659 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-07-14", "window": { "start": { "local": "1937-07-14T12:30:54+08:00", "utc": "1937-07-14T04:30:54Z", "ms": -1024601346445.0708 }, "end": { "local": "1937-07-14T13:18:54+08:00", "utc": "1937-07-14T05:18:54Z", "ms": -1024598466445.0708 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-07-15", "window": { "start": { "local": "1937-07-15T12:31:00+08:00", "utc": "1937-07-15T04:31:00Z", "ms": -1024514940120.7002 }, "end": { "local": "1937-07-15T13:19:00+08:00", "utc": "1937-07-15T05:19:00Z", "ms": -1024512060120.7002 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 03:41 on Wed 14 Jul to 04:48 on Thu 15 Jul.", "fact": "1937-07-13T19:41:09Z → 1937-07-14T20:47:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 14th, 12:31–13:19 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27796 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Qingyang, 1937: Wednesday 14 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": "1937-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-14", "confidence": "determinate" } ], "quote": "In Qingyang, Vivasvat Saptamī 1937 falls on Wednesday 14 July. Saptamī runs from 03:41 on Wed 14 Jul to 04:48 on Thu 15 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-07-19", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19970, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-07-18T11:19:18+08:00", "utc": "1937-07-18T03:19:18Z", "ms": -1024260041685.1138 }, "end": { "local": "1937-07-19T13:51:26+08:00", "utc": "1937-07-19T05:51:26Z", "ms": -1024164514401.1191 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-18T11:19:18+08:00", "utc": "1937-07-18T03:19:18Z", "ms": -1024260041685.1138 }, "end": { "local": "1937-07-19T13:51:26+08:00", "utc": "1937-07-19T05:51:26Z", "ms": -1024164514401.1191 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-07-18", "window": { "start": { "local": "1937-07-18T05:46:29+08:00", "utc": "1937-07-17T21:46:29Z", "ms": -1024280011254.487 }, "end": { "local": "1937-07-18T05:46:29+08:00", "utc": "1937-07-17T21:46:29Z", "ms": -1024280011254.487 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-07-19", "window": { "start": { "local": "1937-07-19T05:47:10+08:00", "utc": "1937-07-18T21:47:10Z", "ms": -1024193570120.6193 }, "end": { "local": "1937-07-19T05:47:10+08:00", "utc": "1937-07-18T21:47:10Z", "ms": -1024193570120.6193 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:19 on Sun 18 Jul to 13:51 on Mon 19 Jul.", "fact": "1937-07-18T03:19:18Z → 1937-07-19T05:51:26Z" }, { "step": "kaala", "text": "Sunrise is at 05:46 on the 18th and 05:47 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 19970 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Qingyang, 1937: Monday 19 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": "1937-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-19", "confidence": "determinate" } ], "quote": "In Qingyang, Hariśayanī Ekādaśī 1937 falls on Monday 19 July. Ekādaśī runs from 11:19 on Sun 18 Jul to 13:51 on Mon 19 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-07-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-07-20", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6624, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-07-20T16:12:17+08:00", "utc": "1937-07-20T08:12:17Z", "ms": -1024069663089.8003 }, "end": { "local": "1937-07-21T18:11:56+08:00", "utc": "1937-07-21T10:11:56Z", "ms": -1023976084386.4626 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-20T16:12:17+08:00", "utc": "1937-07-20T08:12:17Z", "ms": -1024069663089.8003 }, "end": { "local": "1937-07-21T18:11:56+08:00", "utc": "1937-07-21T10:11:56Z", "ms": -1023976084386.4626 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-07-20", "window": { "start": { "local": "1937-07-20T20:02:56+08:00", "utc": "1937-07-20T12:02:56Z", "ms": -1024055824167.132 }, "end": { "local": "1937-07-20T21:21:01+08:00", "utc": "1937-07-20T13:21:01Z", "ms": -1024051139105.8292 } }, "covered_min": 78, "window_min": 78, "qualifies": true }, { "local_date": "1937-07-21", "window": { "start": { "local": "1937-07-21T20:02:20+08:00", "utc": "1937-07-21T12:02:20Z", "ms": -1023969460113.2101 }, "end": { "local": "1937-07-21T21:20:35+08:00", "utc": "1937-07-21T13:20:35Z", "ms": -1023964764563.4365 } }, "covered_min": 0, "window_min": 78, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:12 on Tue 20 Jul to 18:12 on Wed 21 Jul.", "fact": "1937-07-20T08:12:17Z → 1937-07-21T10:11:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:03–21:21 on the 20th, 20:02–21:21 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 78 of 78 minutes on the 20th and 0 of 78 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 6624 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Tuesday 20 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": "1937-07-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-20", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Tuesday 20 July. Trayodaśī runs from 16:12 on Tue 20 Jul to 18:12 on Wed 21 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-07-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-22", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1064, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-07-22T19:43:58+08:00", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T20:45:29+08:00", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-22T19:43:58+08:00", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T20:45:29+08:00", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-07-22", "window": { "start": { "local": "1937-07-22T20:01:42+08:00", "utc": "1937-07-22T12:01:42Z", "ms": -1023883097675.771 }, "end": { "local": "1937-07-22T21:20:09+08:00", "utc": "1937-07-22T13:20:09Z", "ms": -1023878391359.607 } }, "covered_min": 78, "window_min": 78, "qualifies": true }, { "local_date": "1937-07-23", "window": { "start": { "local": "1937-07-23T20:01:03+08:00", "utc": "1937-07-23T12:01:03Z", "ms": -1023796736835.804 }, "end": { "local": "1937-07-23T21:19:41+08:00", "utc": "1937-07-23T13:19:41Z", "ms": -1023792019481.5885 } }, "covered_min": 44, "window_min": 79, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:44 on Thu 22 Jul to 20:45 on Fri 23 Jul.", "fact": "1937-07-22T11:43:58Z → 1937-07-23T12:45:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:02–21:20 on the 22nd, 20:01–21:20 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 78 of 78 minutes on the 22nd and 44 of 79 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "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 1064 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Qingyang, 1937: Thursday 22 July.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1937-07-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-22", "confidence": "boundary" } ], "quote": "In Qingyang, Śiva Śayanotsava 1937 falls on Thursday 22 July. Pūrṇimā runs from 19:44 on Thu 22 Jul to 20:45 on Fri 23 Jul and covers all of pradoṣa that evening. It also reaches the next evening for 44 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32715, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-07-22T19:43:58+08:00", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T20:45:29+08:00", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-22T19:43:58+08:00", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T20:45:29+08:00", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 } }, "kaala": "udaya-3", "days": [ { "local_date": "1937-07-23", "window": { "start": { "local": "1937-07-23T05:50:00+08:00", "utc": "1937-07-22T21:50:00Z", "ms": -1023847800304.541 }, "end": { "local": "1937-07-23T08:40:12+08:00", "utc": "1937-07-23T00:40:12Z", "ms": -1023837587610.7936 } }, "covered_min": 170, "window_min": 170, "qualifies": true }, { "local_date": "1937-07-24", "window": { "start": { "local": "1937-07-24T05:50:43+08:00", "utc": "1937-07-23T21:50:43Z", "ms": -1023761356679.1884 }, "end": { "local": "1937-07-24T08:40:39+08:00", "utc": "1937-07-24T00:40:39Z", "ms": -1023751160858.0188 } }, "covered_min": 0, "window_min": 170, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:44 on Thu 22 Jul to 20:45 on Fri 23 Jul.", "fact": "1937-07-22T11:43:58Z → 1937-07-23T12:45:29Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:50–08:40 on the 23rd, 05:51–08:41 on the 24th.", "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 23rd and 0 of 170 on the 24th.", "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 32715 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Qingyang, 1937: Friday 23 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": "1937-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-23", "confidence": "determinate" } ], "quote": "In Qingyang, Vyāsa Pūjā 1937 falls on Friday 23 July. Pūrṇimā runs from 19:44 on Thu 22 Jul to 20:45 on Fri 23 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23069, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-07-22T19:43:58+08:00", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T20:45:29+08:00", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-22T19:43:58+08:00", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T20:45:29+08:00", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-07-22", "window": { "start": { "local": "1937-07-22T12:31:29+08:00", "utc": "1937-07-22T04:31:29Z", "ms": -1023910110582.8396 }, "end": { "local": "1937-07-22T13:19:29+08:00", "utc": "1937-07-22T05:19:29Z", "ms": -1023907230582.8396 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-07-23", "window": { "start": { "local": "1937-07-23T12:31:31+08:00", "utc": "1937-07-23T04:31:31Z", "ms": -1023823708570.1725 }, "end": { "local": "1937-07-23T13:19:31+08:00", "utc": "1937-07-23T05:19:31Z", "ms": -1023820828570.1725 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:44 on Thu 22 Jul to 20:45 on Fri 23 Jul.", "fact": "1937-07-22T11:43:58Z → 1937-07-23T12:45:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 22nd, 12:32–13:20 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23069 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Qingyang, 1937: Friday 23 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": "1937-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-23", "confidence": "determinate" } ], "quote": "In Qingyang, Guru Pūrṇimā 1937 falls on Friday 23 July. Pūrṇimā runs from 19:44 on Thu 22 Jul to 20:45 on Fri 23 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-23", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1064, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-07-22T19:43:58+08:00", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T20:45:29+08:00", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1937-07-22T19:43:58+08:00", "utc": "1937-07-22T11:43:58Z", "ms": -1023884161505.4313 }, "end": { "local": "1937-07-23T20:45:29+08:00", "utc": "1937-07-23T12:45:29Z", "ms": -1023794071409.7513 } }, "kaala": "sayahna", "days": [ { "local_date": "1937-07-22", "window": { "start": { "local": "1937-07-22T17:11:13+08:00", "utc": "1937-07-22T09:11:13Z", "ms": -1023893326838.5985 }, "end": { "local": "1937-07-22T20:01:42+08:00", "utc": "1937-07-22T12:01:42Z", "ms": -1023883097675.771 } }, "covered_min": 18, "window_min": 170, "qualifies": true }, { "local_date": "1937-07-23", "window": { "start": { "local": "1937-07-23T17:10:50+08:00", "utc": "1937-07-23T09:10:50Z", "ms": -1023806949529.5514 }, "end": { "local": "1937-07-23T20:01:03+08:00", "utc": "1937-07-23T12:01:03Z", "ms": -1023796736835.804 } }, "covered_min": 170, "window_min": 170, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:44 on Thu 22 Jul to 20:45 on Fri 23 Jul.", "fact": "1937-07-22T11:43:58Z → 1937-07-23T12:45:29Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:11–20:02 on the 22nd, 17:11–20:01 on the 23rd.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 18 of 170 minutes on the 22nd and 170 of 170 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both late afternoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 1064 s" }, { "step": "ruling", "text": "Kokilā Vrata, Qingyang, 1937: Friday 23 July.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1937-07-23", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-23", "confidence": "boundary" } ], "quote": "In Qingyang, Kokilā Vrata 1937 falls on Friday 23 July. Pūrṇimā runs from 19:44 on Thu 22 Jul to 20:45 on Fri 23 Jul and covers all of sāyāhna that late afternoon. It also reaches the previous late afternoon for 18 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/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1656, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1937-07-24T21:16:15+08:00", "utc": "1937-07-24T13:16:15Z", "ms": -1023705824947.5991 }, "end": { "local": "1937-07-25T21:17:59+08:00", "utc": "1937-07-25T13:17:59Z", "ms": -1023619320910.8528 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-07-24T21:16:15+08:00", "utc": "1937-07-24T13:16:15Z", "ms": -1023705824947.5991 }, "end": { "local": "1937-07-25T21:17:59+08:00", "utc": "1937-07-25T13:17:59Z", "ms": -1023619320910.8528 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-07-24", "window": { "start": { "local": "1937-07-24T20:17:29+08:00", "utc": "1937-07-24T12:17:29Z", "ms": -1023709350886.88 }, "end": { "local": "1937-07-24T20:17:29+08:00", "utc": "1937-07-24T12:17:29Z", "ms": -1023709350886.88 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-07-25", "window": { "start": { "local": "1937-07-25T20:50:23+08:00", "utc": "1937-07-25T12:50:23Z", "ms": -1023620977396.8378 }, "end": { "local": "1937-07-25T20:50:23+08:00", "utc": "1937-07-25T12:50:23Z", "ms": -1023620977396.8378 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 21:16 on Sat 24 Jul to 21:18 on Sun 25 Jul.", "fact": "1937-07-24T13:16:15Z → 1937-07-25T13:17:59Z" }, { "step": "kaala", "text": "Moonrise is at 20:17 on the 24th and 20:50 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. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1656 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Qingyang, 1937: Sunday 25 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": "1937-07-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-25", "confidence": "determinate" } ], "quote": "In Qingyang, Aśūnya Śayana Vrata (Āṣāḍha) 1937 falls on Sunday 25 July. Dvitīyā runs from 21:16 on Sat 24 Jul to 21:18 on Sun 25 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-07-26", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1715, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-07-26T20:53:21+08:00", "utc": "1937-07-26T12:53:21Z", "ms": -1023534399313.6832 }, "end": { "local": "1937-07-27T20:05:15+08:00", "utc": "1937-07-27T12:05:15Z", "ms": -1023450885059.2439 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-07-26T20:53:21+08:00", "utc": "1937-07-26T12:53:21Z", "ms": -1023534399313.6832 }, "end": { "local": "1937-07-27T20:05:15+08:00", "utc": "1937-07-27T12:05:15Z", "ms": -1023450885059.2439 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-07-26", "window": { "start": { "local": "1937-07-26T21:21:56+08:00", "utc": "1937-07-26T13:21:56Z", "ms": -1023532683999.7424 }, "end": { "local": "1937-07-26T21:21:56+08:00", "utc": "1937-07-26T13:21:56Z", "ms": -1023532683999.7424 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-07-27", "window": { "start": { "local": "1937-07-27T21:53:18+08:00", "utc": "1937-07-27T13:53:18Z", "ms": -1023444401571.4069 }, "end": { "local": "1937-07-27T21:53:18+08:00", "utc": "1937-07-27T13:53:18Z", "ms": -1023444401571.4069 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:53 on Mon 26 Jul to 20:05 on Tue 27 Jul.", "fact": "1937-07-26T12:53:21Z → 1937-07-27T12:05:15Z" }, { "step": "kaala", "text": "Moonrise is at 21:22 on the 26th and 21:53 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1715 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Monday 26 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": "1937-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-07-26", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Monday 26 July. Caturthī runs from 20:53 on Mon 26 Jul to 20:05 on Tue 27 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-07-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-08-03", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2077, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-08-02T09:06:27+08:00", "utc": "1937-08-02T01:06:27Z", "ms": -1022972013265.366 }, "end": { "local": "1937-08-03T06:32:55+08:00", "utc": "1937-08-02T22:32:55Z", "ms": -1022894824813.2955 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-02T09:06:27+08:00", "utc": "1937-08-02T01:06:27Z", "ms": -1022972013265.366 }, "end": { "local": "1937-08-03T06:32:55+08:00", "utc": "1937-08-02T22:32:55Z", "ms": -1022894824813.2955 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-08-02", "window": { "start": { "local": "1937-08-02T05:57:32+08:00", "utc": "1937-08-01T21:57:32Z", "ms": -1022983348408.3676 }, "end": { "local": "1937-08-02T05:57:32+08:00", "utc": "1937-08-01T21:57:32Z", "ms": -1022983348408.3676 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-08-03", "window": { "start": { "local": "1937-08-03T05:58:18+08:00", "utc": "1937-08-02T21:58:18Z", "ms": -1022896901754.9839 }, "end": { "local": "1937-08-03T05:58:18+08:00", "utc": "1937-08-02T21:58:18Z", "ms": -1022896901754.9839 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:06 on Mon 2 Aug to 06:33 on Tue 3 Aug.", "fact": "1937-08-02T01:06:27Z → 1937-08-02T22:32:55Z" }, { "step": "kaala", "text": "Sunrise is at 05:58 on the 2nd and 05:58 on the 3rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 2nd and is on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2077 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Qingyang, 1937: Tuesday 3 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": "1937-08-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-03", "confidence": "determinate" } ], "quote": "In Qingyang, Kāmikā Ekādaśī 1937 falls on Tuesday 3 August. Ekādaśī runs from 09:06 on Mon 2 Aug to 06:33 on Tue 3 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-08-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-08-04", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14770, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-08-04T03:55:08+08:00", "utc": "1937-08-03T19:55:08Z", "ms": -1022817892046.4872 }, "end": { "local": "1937-08-05T01:18:35+08:00", "utc": "1937-08-04T17:18:35Z", "ms": -1022740885130.4574 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-04T03:55:08+08:00", "utc": "1937-08-03T19:55:08Z", "ms": -1022817892046.4872 }, "end": { "local": "1937-08-05T01:18:35+08:00", "utc": "1937-08-04T17:18:35Z", "ms": -1022740885130.4574 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-08-03", "window": { "start": { "local": "1937-08-03T19:52:13+08:00", "utc": "1937-08-03T11:52:13Z", "ms": -1022846866825.4387 }, "end": { "local": "1937-08-03T21:13:08+08:00", "utc": "1937-08-03T13:13:08Z", "ms": -1022842011907.0193 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "1937-08-04", "window": { "start": { "local": "1937-08-04T19:51:17+08:00", "utc": "1937-08-04T11:51:17Z", "ms": -1022760523425.1976 }, "end": { "local": "1937-08-04T21:12:25+08:00", "utc": "1937-08-04T13:12:25Z", "ms": -1022755654699.4497 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:55 on Wed 4 Aug to 01:19 on Thu 5 Aug.", "fact": "1937-08-03T19:55:08Z → 1937-08-04T17:18:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:52–21:13 on the 3rd, 19:51–21:12 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 81 minutes on the 3rd and 81 of 81 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 14770 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Wednesday 4 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": "1937-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-04", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Wednesday 4 August. Trayodaśī runs from 03:55 on Wed 4 Aug to 01:19 on Thu 5 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-08-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-08-04", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-04", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 59, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-08-05T01:18:35+08:00", "utc": "1937-08-04T17:18:35Z", "ms": -1022740885130.4574 }, "end": { "local": "1937-08-05T22:49:56+08:00", "utc": "1937-08-05T14:49:56Z", "ms": -1022663403945.8575 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-05T01:18:35+08:00", "utc": "1937-08-04T17:18:35Z", "ms": -1022740885130.4574 }, "end": { "local": "1937-08-05T22:49:56+08:00", "utc": "1937-08-05T14:49:56Z", "ms": -1022663403945.8575 } }, "kaala": "nishita", "days": [ { "local_date": "1937-08-04", "window": { "start": { "local": "1937-08-05T00:31:34+08:00", "utc": "1937-08-04T16:31:34Z", "ms": -1022743705703.6428 }, "end": { "local": "1937-08-05T01:19:34+08:00", "utc": "1937-08-04T17:19:34Z", "ms": -1022740825703.6428 } }, "covered_min": 1, "window_min": 48, "qualifies": true }, { "local_date": "1937-08-05", "window": { "start": { "local": "1937-08-06T00:31:29+08:00", "utc": "1937-08-05T16:31:29Z", "ms": -1022657311122.05 }, "end": { "local": "1937-08-06T01:19:29+08:00", "utc": "1937-08-05T17:19:29Z", "ms": -1022654431122.05 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:19 on Thu 5 Aug to 22:50 on Thu 5 Aug.", "fact": "1937-08-04T17:18:35Z → 1937-08-05T14:49:56Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:32–01:20 on the 4th, 00:31–01:19 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 1 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 59 s < 300 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Wednesday 4 August.", "fact": "confidence: boundary (margin)" } ], "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": "1937-08-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-04", "confidence": "boundary" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Wednesday 4 August. Caturdaśī runs from 01:19 on Thu 5 Aug to 22:50 on Thu 5 Aug and covers 1 of 48 minutes of niśītha that night. It is 0 min 59 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-08-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12649, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-08-08T17:29:06+08:00", "utc": "1937-08-08T09:29:06Z", "ms": -1022423453885.1086 }, "end": { "local": "1937-08-09T16:49:27+08:00", "utc": "1937-08-09T08:49:27Z", "ms": -1022339433108.1495 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-08T17:29:06+08:00", "utc": "1937-08-08T09:29:06Z", "ms": -1022423453885.1086 }, "end": { "local": "1937-08-09T16:49:27+08:00", "utc": "1937-08-09T08:49:27Z", "ms": -1022339433108.1495 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-08", "window": { "start": { "local": "1937-08-08T12:30:45+08:00", "utc": "1937-08-08T04:30:45Z", "ms": -1022441354594.4369 }, "end": { "local": "1937-08-08T13:18:45+08:00", "utc": "1937-08-08T05:18:45Z", "ms": -1022438474594.4369 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-08-09", "window": { "start": { "local": "1937-08-09T12:30:38+08:00", "utc": "1937-08-09T04:30:38Z", "ms": -1022354962415.1196 }, "end": { "local": "1937-08-09T13:18:38+08:00", "utc": "1937-08-09T05:18:38Z", "ms": -1022352082415.1196 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 17:29 on Sun 8 Aug to 16:49 on Mon 9 Aug.", "fact": "1937-08-08T09:29:06Z → 1937-08-09T08:49:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 8th, 12:31–13:19 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 12649 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Qingyang, 1937: Monday 9 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": "1937-08-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-09", "confidence": "determinate" } ], "quote": "In Qingyang, Madhusravā Tṛtīyā (Hariyali Teej) 1937 falls on Monday 9 August. Tṛtīyā runs from 17:29 on Sun 8 Aug to 16:49 on Mon 9 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-08-10", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12649, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-08-09T16:49:27+08:00", "utc": "1937-08-09T08:49:27Z", "ms": -1022339433108.1495 }, "end": { "local": "1937-08-10T16:53:05+08:00", "utc": "1937-08-10T08:53:05Z", "ms": -1022252815131.803 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-09T16:49:27+08:00", "utc": "1937-08-09T08:49:27Z", "ms": -1022339433108.1495 }, "end": { "local": "1937-08-10T16:53:05+08:00", "utc": "1937-08-10T08:53:05Z", "ms": -1022252815131.803 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-09", "window": { "start": { "local": "1937-08-09T12:30:38+08:00", "utc": "1937-08-09T04:30:38Z", "ms": -1022354962415.1196 }, "end": { "local": "1937-08-09T13:18:38+08:00", "utc": "1937-08-09T05:18:38Z", "ms": -1022352082415.1196 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-08-10", "window": { "start": { "local": "1937-08-10T12:30:29+08:00", "utc": "1937-08-10T04:30:29Z", "ms": -1022268570820.6401 }, "end": { "local": "1937-08-10T13:18:29+08:00", "utc": "1937-08-10T05:18:29Z", "ms": -1022265690820.6401 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:49 on Mon 9 Aug to 16:53 on Tue 10 Aug.", "fact": "1937-08-09T08:49:27Z → 1937-08-10T08:53:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 9th, 12:30–13:18 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12649 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1937: Tuesday 10 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": "1937-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-10", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1937 falls on Tuesday 10 August. Caturthī runs from 16:49 on Mon 9 Aug to 16:53 on Tue 10 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-08-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12876, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-08-10T16:53:05+08:00", "utc": "1937-08-10T08:53:05Z", "ms": -1022252815131.803 }, "end": { "local": "1937-08-11T17:41:33+08:00", "utc": "1937-08-11T09:41:33Z", "ms": -1022163506751.4111 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-10T16:53:05+08:00", "utc": "1937-08-10T08:53:05Z", "ms": -1022252815131.803 }, "end": { "local": "1937-08-11T17:41:33+08:00", "utc": "1937-08-11T09:41:33Z", "ms": -1022163506751.4111 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-10", "window": { "start": { "local": "1937-08-10T12:30:29+08:00", "utc": "1937-08-10T04:30:29Z", "ms": -1022268570820.6401 }, "end": { "local": "1937-08-10T13:18:29+08:00", "utc": "1937-08-10T05:18:29Z", "ms": -1022265690820.6401 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-08-11", "window": { "start": { "local": "1937-08-11T12:30:20+08:00", "utc": "1937-08-11T04:30:20Z", "ms": -1022182179807.4575 }, "end": { "local": "1937-08-11T13:18:20+08:00", "utc": "1937-08-11T05:18:20Z", "ms": -1022179299807.4575 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 16:53 on Tue 10 Aug to 17:42 on Wed 11 Aug.", "fact": "1937-08-10T08:53:05Z → 1937-08-11T09:41:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 10th, 12:30–13:18 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: paraviddha → only-day · margin 12876 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Qingyang, 1937: Wednesday 11 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": "1937-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-11", "confidence": "determinate" } ], "quote": "In Qingyang, Nāga Pañcamī 1937 falls on Wednesday 11 August. Pañcamī runs from 16:53 on Tue 10 Aug to 17:42 on Wed 11 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-08-18", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1836, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-08-17T04:39:55+08:00", "utc": "1937-08-16T20:39:55Z", "ms": -1021692004966.6334 }, "end": { "local": "1937-08-18T06:40:41+08:00", "utc": "1937-08-17T22:40:41Z", "ms": -1021598358571.7555 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-17T04:39:55+08:00", "utc": "1937-08-16T20:39:55Z", "ms": -1021692004966.6334 }, "end": { "local": "1937-08-18T06:40:41+08:00", "utc": "1937-08-17T22:40:41Z", "ms": -1021598358571.7555 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-08-17", "window": { "start": { "local": "1937-08-17T06:09:18+08:00", "utc": "1937-08-16T22:09:18Z", "ms": -1021686641830.4332 }, "end": { "local": "1937-08-17T06:09:18+08:00", "utc": "1937-08-16T22:09:18Z", "ms": -1021686641830.4332 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-08-18", "window": { "start": { "local": "1937-08-18T06:10:05+08:00", "utc": "1937-08-17T22:10:05Z", "ms": -1021600194900.2275 }, "end": { "local": "1937-08-18T06:10:05+08:00", "utc": "1937-08-17T22:10:05Z", "ms": -1021600194900.2275 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:40 on Tue 17 Aug to 06:41 on Wed 18 Aug.", "fact": "1937-08-16T20:39:55Z → 1937-08-17T22:40:41Z" }, { "step": "kaala", "text": "Sunrise is at 06:09 on the 17th and 06:10 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 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both sunrises qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 1836 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Qingyang, 1937: Wednesday 18 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": "1937-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-18", "confidence": "determinate" } ], "quote": "In Qingyang, Putradā Ekādaśī 1937 falls on Wednesday 18 August. Ekādaśī runs from 04:40 on Tue 17 Aug to 06:41 on Wed 18 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-08-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15603, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-08-18T06:40:41+08:00", "utc": "1937-08-17T22:40:41Z", "ms": -1021598358571.7555 }, "end": { "local": "1937-08-19T08:08:45+08:00", "utc": "1937-08-19T00:08:45Z", "ms": -1021506674937.0896 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-18T06:40:41+08:00", "utc": "1937-08-17T22:40:41Z", "ms": -1021598358571.7555 }, "end": { "local": "1937-08-19T08:08:45+08:00", "utc": "1937-08-19T00:08:45Z", "ms": -1021506674937.0896 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-18", "window": { "start": { "local": "1937-08-18T12:29:02+08:00", "utc": "1937-08-18T04:29:02Z", "ms": -1021577458429.5886 }, "end": { "local": "1937-08-18T13:17:02+08:00", "utc": "1937-08-18T05:17:02Z", "ms": -1021574578429.5886 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-08-19", "window": { "start": { "local": "1937-08-19T12:28:48+08:00", "utc": "1937-08-19T04:28:48Z", "ms": -1021491071793.267 }, "end": { "local": "1937-08-19T13:16:48+08:00", "utc": "1937-08-19T05:16:48Z", "ms": -1021488191793.267 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 06:41 on Wed 18 Aug to 08:09 on Thu 19 Aug.", "fact": "1937-08-17T22:40:41Z → 1937-08-19T00:08:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 18th, 12:29–13:17 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: purvaviddha → only-day · margin 15603 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Qingyang, 1937: Wednesday 18 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "damodara-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Buddha dvadasi, Damodara dvadasi (purvaviddha), Visnu-pavitraropana." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-18", "confidence": "determinate" } ], "quote": "In Qingyang, Dāmodara Dvādaśī 1937 falls on Wednesday 18 August. Dvādaśī runs from 06:41 on Wed 18 Aug to 08:09 on Thu 19 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/pradosha-vrata?on=1937-08-19", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38068, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-08-19T08:08:45+08:00", "utc": "1937-08-19T00:08:45Z", "ms": -1021506674937.0896 }, "end": { "local": "1937-08-20T08:59:02+08:00", "utc": "1937-08-20T00:59:02Z", "ms": -1021417257619.2028 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-19T08:08:45+08:00", "utc": "1937-08-19T00:08:45Z", "ms": -1021506674937.0896 }, "end": { "local": "1937-08-20T08:59:02+08:00", "utc": "1937-08-20T00:59:02Z", "ms": -1021417257619.2028 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-08-19", "window": { "start": { "local": "1937-08-19T19:34:44+08:00", "utc": "1937-08-19T11:34:44Z", "ms": -1021465515535.0674 }, "end": { "local": "1937-08-19T20:59:40+08:00", "utc": "1937-08-19T12:59:40Z", "ms": -1021460420302.0276 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "1937-08-20", "window": { "start": { "local": "1937-08-20T19:33:30+08:00", "utc": "1937-08-20T11:33:30Z", "ms": -1021379190020.9104 }, "end": { "local": "1937-08-20T20:58:41+08:00", "utc": "1937-08-20T12:58:41Z", "ms": -1021374078632.6619 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:09 on Thu 19 Aug to 08:59 on Fri 20 Aug.", "fact": "1937-08-19T00:08:45Z → 1937-08-20T00:59:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:35–21:00 on the 19th, 19:33–20:59 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 85 of 85 minutes on the 19th and 0 of 85 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38068 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Thursday 19 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": "1937-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-19", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Thursday 19 August. Trayodaśī runs from 08:09 on Thu 19 Aug to 08:59 on Fri 20 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-08-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-21", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 9226, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-08-21T09:10:52+08:00", "utc": "1937-08-21T01:10:52Z", "ms": -1021330147772.3179 }, "end": { "local": "1937-08-22T08:46:58+08:00", "utc": "1937-08-22T00:46:58Z", "ms": -1021245181606.5586 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1937-08-21T21:03:07+08:00", "utc": "1937-08-21T13:03:07Z", "ms": -1021287413032.4493 }, "end": { "local": "1937-08-22T08:46:58+08:00", "utc": "1937-08-22T00:46:58Z", "ms": -1021245181606.5586 } }, "kaala": "day", "days": [ { "local_date": "1937-08-21", "window": { "start": { "local": "1937-08-21T06:12:25+08:00", "utc": "1937-08-20T22:12:25Z", "ms": -1021340854609.0465 }, "end": { "local": "1937-08-22T06:13:12+08:00", "utc": "1937-08-21T22:13:12Z", "ms": -1021254408016.5085 } }, "covered_min": 550, "window_min": 1441, "qualifies": true }, { "local_date": "1937-08-22", "window": { "start": { "local": "1937-08-22T06:13:12+08:00", "utc": "1937-08-21T22:13:12Z", "ms": -1021254408016.5085 }, "end": { "local": "1937-08-23T06:13:58+08:00", "utc": "1937-08-22T22:13:58Z", "ms": -1021167961507.7705 } }, "covered_min": 154, "window_min": 1441, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:11 on Sat 21 Aug to 08:47 on Sun 22 Aug. Its second half begins at 21:03 on Sat 21 Aug.", "fact": "1937-08-21T01:10:52Z → 1937-08-22T00:46:58Z · second half from 1937-08-21T13:03:07Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:12 on the 21st, and from 06:13 on the 22nd.", "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 550 of 1441 minutes on the 21st and 154 of 1441 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "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 9226 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Qingyang, 1937: Saturday 21 August.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1937-08-21", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-21", "confidence": "boundary" } ], "quote": "In Qingyang, Rakṣā Bandhana (Rakhi) 1937 falls on Saturday 21 August. The second half of Pūrṇimā runs from 21:03 on Sat 21 Aug to 08:47 on Sun 22 Aug and falls on two days: 550 minutes of it on the 21st, 154 on the 22nd; the rule does not say which to take, and the day that holds more of it is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11848, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-08-21T09:10:52+08:00", "utc": "1937-08-21T01:10:52Z", "ms": -1021330147772.3179 }, "end": { "local": "1937-08-22T08:46:58+08:00", "utc": "1937-08-22T00:46:58Z", "ms": -1021245181606.5586 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1937-08-21T09:10:52+08:00", "utc": "1937-08-21T01:10:52Z", "ms": -1021330147772.3179 }, "end": { "local": "1937-08-22T08:46:58+08:00", "utc": "1937-08-22T00:46:58Z", "ms": -1021245181606.5586 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-21", "window": { "start": { "local": "1937-08-21T12:28:20+08:00", "utc": "1937-08-21T04:28:20Z", "ms": -1021318299997.5867 }, "end": { "local": "1937-08-21T13:16:20+08:00", "utc": "1937-08-21T05:16:20Z", "ms": -1021315419997.5867 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-08-22", "window": { "start": { "local": "1937-08-22T12:28:05+08:00", "utc": "1937-08-22T04:28:05Z", "ms": -1021231914808.2947 }, "end": { "local": "1937-08-22T13:16:05+08:00", "utc": "1937-08-22T05:16:05Z", "ms": -1021229034808.2947 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:11 on Sat 21 Aug to 08:47 on Sun 22 Aug.", "fact": "1937-08-21T01:10:52Z → 1937-08-22T00:46:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 21st, 12:28–13:16 on the 22nd.", "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 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11848 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Qingyang, 1937: Saturday 21 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": "1937-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-21", "confidence": "determinate" } ], "quote": "In Qingyang, Ṛṣi Tarpaṇa 1937 falls on Saturday 21 August. Pūrṇimā runs from 09:11 on Sat 21 Aug to 08:47 on Sun 22 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38252, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1937-08-23T07:52:19+08:00", "utc": "1937-08-22T23:52:19Z", "ms": -1021162061487.624 }, "end": { "local": "1937-08-24T06:32:56+08:00", "utc": "1937-08-23T22:32:56Z", "ms": -1021080423625.9594 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-23T07:52:19+08:00", "utc": "1937-08-22T23:52:19Z", "ms": -1021162061487.624 }, "end": { "local": "1937-08-24T06:32:56+08:00", "utc": "1937-08-23T22:32:56Z", "ms": -1021080423625.9594 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-08-22", "window": { "start": { "local": "1937-08-22T19:23:14+08:00", "utc": "1937-08-22T11:23:14Z", "ms": -1021207006328.9799 }, "end": { "local": "1937-08-22T19:23:14+08:00", "utc": "1937-08-22T11:23:14Z", "ms": -1021207006328.9799 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-08-23", "window": { "start": { "local": "1937-08-23T19:55:25+08:00", "utc": "1937-08-23T11:55:25Z", "ms": -1021118675170.3307 }, "end": { "local": "1937-08-23T19:55:25+08:00", "utc": "1937-08-23T11:55:25Z", "ms": -1021118675170.3307 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 07:52 on Mon 23 Aug to 06:33 on Tue 24 Aug.", "fact": "1937-08-22T23:52:19Z → 1937-08-23T22:32:56Z" }, { "step": "kaala", "text": "Moonrise is at 19:23 on the 22nd and 19:55 on the 23rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 22nd and is on the 23rd.", "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 38252 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Qingyang, 1937: Monday 23 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": "1937-08-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-23", "confidence": "determinate" } ], "quote": "In Qingyang, Aśūnya Śayana Vrata 1937 falls on Monday 23 August. Dvitīyā runs from 07:52 on Mon 23 Aug to 06:33 on Tue 24 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21278, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-08-24T06:32:56+08:00", "utc": "1937-08-23T22:32:56Z", "ms": -1021080423625.9594 }, "end": { "local": "1937-08-25T04:55:06+08:00", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-24T06:32:56+08:00", "utc": "1937-08-23T22:32:56Z", "ms": -1021080423625.9594 }, "end": { "local": "1937-08-25T04:55:06+08:00", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-24", "window": { "start": { "local": "1937-08-24T12:27:34+08:00", "utc": "1937-08-24T04:27:34Z", "ms": -1021059145765.0559 }, "end": { "local": "1937-08-24T13:15:34+08:00", "utc": "1937-08-24T05:15:34Z", "ms": -1021056265765.0559 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-08-25", "window": { "start": { "local": "1937-08-25T12:27:18+08:00", "utc": "1937-08-25T04:27:18Z", "ms": -1020972761876.2661 }, "end": { "local": "1937-08-25T13:15:18+08:00", "utc": "1937-08-25T05:15:18Z", "ms": -1020969881876.2661 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:33 on Tue 24 Aug to 04:55 on Wed 25 Aug.", "fact": "1937-08-23T22:32:56Z → 1937-08-24T20:55:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 24th, 12:27–13:15 on the 25th.", "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 24th and 0 of 48 on the 25th.", "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 21278 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Qingyang, 1937: Tuesday 24 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": "1937-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-24", "confidence": "determinate" } ], "quote": "In Qingyang, Kajjalī Tṛtīyā (Kajari Teej) 1937 falls on Tuesday 24 August. Tṛtīyā runs from 06:33 on Tue 24 Aug to 04:55 on Wed 25 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27444, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-08-25T04:55:06+08:00", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 }, "end": { "local": "1937-08-26T03:04:29+08:00", "utc": "1937-08-25T19:04:29Z", "ms": -1020920131023.5323 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-25T04:55:06+08:00", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 }, "end": { "local": "1937-08-26T03:04:29+08:00", "utc": "1937-08-25T19:04:29Z", "ms": -1020920131023.5323 } }, "kaala": "sayahna", "days": [ { "local_date": "1937-08-24", "window": { "start": { "local": "1937-08-24T16:49:40+08:00", "utc": "1937-08-24T08:49:40Z", "ms": -1021043420176.3346 }, "end": { "local": "1937-08-24T19:28:24+08:00", "utc": "1937-08-24T11:28:24Z", "ms": -1021033896450.5203 } }, "covered_min": 0, "window_min": 159, "qualifies": false }, { "local_date": "1937-08-25", "window": { "start": { "local": "1937-08-25T16:48:46+08:00", "utc": "1937-08-25T08:48:46Z", "ms": -1020957073765.3727 }, "end": { "local": "1937-08-25T19:27:05+08:00", "utc": "1937-08-25T11:27:05Z", "ms": -1020947575024.777 } }, "covered_min": 158, "window_min": 158, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:55 on Wed 25 Aug to 03:04 on Thu 26 Aug.", "fact": "1937-08-24T20:55:06Z → 1937-08-25T19:04:29Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:50–19:28 on the 24th, 16:49–19:27 on the 25th.", "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 159 minutes on the 24th and 158 of 158 on the 25th.", "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 27444 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Qingyang, 1937: Wednesday 25 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": "1937-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-25", "confidence": "determinate" } ], "quote": "In Qingyang, Bahulā Caturthī 1937 falls on Wednesday 25 August. Caturthī runs from 04:55 on Wed 25 Aug to 03:04 on Thu 26 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-08-25", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21689, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-08-25T04:55:06+08:00", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 }, "end": { "local": "1937-08-26T03:04:29+08:00", "utc": "1937-08-25T19:04:29Z", "ms": -1020920131023.5323 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-25T04:55:06+08:00", "utc": "1937-08-24T20:55:06Z", "ms": -1020999894162.3911 }, "end": { "local": "1937-08-26T03:04:29+08:00", "utc": "1937-08-25T19:04:29Z", "ms": -1020920131023.5323 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-08-24", "window": { "start": { "local": "1937-08-24T20:28:14+08:00", "utc": "1937-08-24T12:28:14Z", "ms": -1021030305570.3739 }, "end": { "local": "1937-08-24T20:28:14+08:00", "utc": "1937-08-24T12:28:14Z", "ms": -1021030305570.3739 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-08-25", "window": { "start": { "local": "1937-08-25T21:03:00+08:00", "utc": "1937-08-25T13:03:00Z", "ms": -1020941820230.2363 }, "end": { "local": "1937-08-25T21:03:00+08:00", "utc": "1937-08-25T13:03:00Z", "ms": -1020941820230.2363 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:55 on Wed 25 Aug to 03:04 on Thu 26 Aug.", "fact": "1937-08-24T20:55:06Z → 1937-08-25T19:04:29Z" }, { "step": "kaala", "text": "Moonrise is at 20:28 on the 24th and 21:03 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 21689 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Wednesday 25 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": "1937-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-25", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Wednesday 25 August. Caturthī runs from 04:55 on Wed 25 Aug to 03:04 on Thu 26 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-08-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35273, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-08-27T01:05:49+08:00", "utc": "1937-08-26T17:05:49Z", "ms": -1020840851024.964 }, "end": { "local": "1937-08-27T23:02:38+08:00", "utc": "1937-08-27T15:02:38Z", "ms": -1020761841907.9164 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-27T01:05:49+08:00", "utc": "1937-08-26T17:05:49Z", "ms": -1020840851024.964 }, "end": { "local": "1937-08-27T23:02:38+08:00", "utc": "1937-08-27T15:02:38Z", "ms": -1020761841907.9164 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-26", "window": { "start": { "local": "1937-08-26T12:27:02+08:00", "utc": "1937-08-26T04:27:02Z", "ms": -1020886378385.5183 }, "end": { "local": "1937-08-26T13:15:02+08:00", "utc": "1937-08-26T05:15:02Z", "ms": -1020883498385.5183 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-08-27", "window": { "start": { "local": "1937-08-27T12:26:45+08:00", "utc": "1937-08-27T04:26:45Z", "ms": -1020799995274.9353 }, "end": { "local": "1937-08-27T13:14:45+08:00", "utc": "1937-08-27T05:14:45Z", "ms": -1020797115274.9353 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 01:06 on Fri 27 Aug to 23:03 on Fri 27 Aug.", "fact": "1937-08-26T17:05:49Z → 1937-08-27T15:02:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 26th, 12:27–13:15 on the 27th.", "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 26th and 48 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 35273 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Qingyang, 1937: Friday 27 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": "1937-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-27", "confidence": "determinate" } ], "quote": "In Qingyang, Hala Ṣaṣṭhī 1937 falls on Friday 27 August. Ṣaṣṭhī runs from 01:06 on Fri 27 Aug to 23:03 on Fri 27 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12570, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-08-28T20:57:21+08:00", "utc": "1937-08-28T12:57:21Z", "ms": -1020682959084.8627 }, "end": { "local": "1937-08-29T18:51:32+08:00", "utc": "1937-08-29T10:51:32Z", "ms": -1020604108042.262 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-28T20:57:21+08:00", "utc": "1937-08-28T12:57:21Z", "ms": -1020682959084.8627 }, "end": { "local": "1937-08-29T18:51:32+08:00", "utc": "1937-08-29T10:51:32Z", "ms": -1020604108042.262 } }, "kaala": "nishita", "days": [ { "local_date": "1937-08-28", "window": { "start": { "local": "1937-08-29T00:26:51+08:00", "utc": "1937-08-28T16:26:51Z", "ms": -1020670389481.2777 }, "end": { "local": "1937-08-29T01:14:51+08:00", "utc": "1937-08-28T17:14:51Z", "ms": -1020667509481.2777 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-08-29", "window": { "start": { "local": "1937-08-30T00:26:33+08:00", "utc": "1937-08-29T16:26:33Z", "ms": -1020584007107.3999 }, "end": { "local": "1937-08-30T01:14:33+08:00", "utc": "1937-08-29T17:14:33Z", "ms": -1020581127107.3999 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 20:57 on Sat 28 Aug to 18:52 on Sun 29 Aug.", "fact": "1937-08-28T12:57:21Z → 1937-08-29T10:51:32Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:27–01:15 on the 28th, 00:27–01:15 on the 29th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during niśītha. It covers 48 of 48 minutes on the 28th and 0 of 48 on the 29th.", "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 12570 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Qingyang, 1937: Saturday 28 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": "1937-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-28", "confidence": "determinate" } ], "quote": "In Qingyang, Janmāṣṭamī 1937 falls on Saturday 28 August. Aṣṭamī runs from 20:57 on Sat 28 Aug to 18:52 on Sun 29 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27773, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-08-27T23:02:38+08:00", "utc": "1937-08-27T15:02:38Z", "ms": -1020761841907.9164 }, "end": { "local": "1937-08-28T20:57:21+08:00", "utc": "1937-08-28T12:57:21Z", "ms": -1020682959084.8627 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-27T23:02:38+08:00", "utc": "1937-08-27T15:02:38Z", "ms": -1020761841907.9164 }, "end": { "local": "1937-08-28T20:57:21+08:00", "utc": "1937-08-28T12:57:21Z", "ms": -1020682959084.8627 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-08-27", "window": { "start": { "local": "1937-08-27T12:26:45+08:00", "utc": "1937-08-27T04:26:45Z", "ms": -1020799995274.9353 }, "end": { "local": "1937-08-27T13:14:45+08:00", "utc": "1937-08-27T05:14:45Z", "ms": -1020797115274.9353 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-08-28", "window": { "start": { "local": "1937-08-28T12:26:27+08:00", "utc": "1937-08-28T04:26:27Z", "ms": -1020713612527.0126 }, "end": { "local": "1937-08-28T13:14:27+08:00", "utc": "1937-08-28T05:14:27Z", "ms": -1020710732527.0126 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 23:03 on Fri 27 Aug to 20:57 on Sat 28 Aug.", "fact": "1937-08-27T15:02:38Z → 1937-08-28T12:57:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 27th, 12:26–13:14 on the 28th.", "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 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27773 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Qingyang, 1937: Saturday 28 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": "1937-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-08-28", "confidence": "determinate" } ], "quote": "In Qingyang, Śītalā Saptamī 1937 falls on Saturday 28 August. Saptamī runs from 23:03 on Fri 27 Aug to 20:57 on Sat 28 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-09-01", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23022, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-08-31T14:43:23+08:00", "utc": "1937-08-31T06:43:23Z", "ms": -1020446197151.4713 }, "end": { "local": "1937-09-01T12:44:36+08:00", "utc": "1937-09-01T04:44:36Z", "ms": -1020366924041.7576 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-08-31T14:43:23+08:00", "utc": "1937-08-31T06:43:23Z", "ms": -1020446197151.4713 }, "end": { "local": "1937-09-01T12:44:36+08:00", "utc": "1937-09-01T04:44:36Z", "ms": -1020366924041.7576 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-08-31", "window": { "start": { "local": "1937-08-31T06:20:08+08:00", "utc": "1937-08-30T22:20:08Z", "ms": -1020476391977.0734 }, "end": { "local": "1937-08-31T06:20:08+08:00", "utc": "1937-08-30T22:20:08Z", "ms": -1020476391977.0734 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-09-01", "window": { "start": { "local": "1937-09-01T06:20:54+08:00", "utc": "1937-08-31T22:20:54Z", "ms": -1020389946050.6414 }, "end": { "local": "1937-09-01T06:20:54+08:00", "utc": "1937-08-31T22:20:54Z", "ms": -1020389946050.6414 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:43 on Tue 31 Aug to 12:45 on Wed 1 Sep.", "fact": "1937-08-31T06:43:23Z → 1937-09-01T04:44:36Z" }, { "step": "kaala", "text": "Sunrise is at 06:20 on the 31st and 06:21 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 23022 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Qingyang, 1937: Wednesday 1 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": "1937-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-01", "confidence": "determinate" } ], "quote": "In Qingyang, Ajā Ekādaśī 1937 falls on Wednesday 1 September. Ekādaśī runs from 14:43 on Tue 31 Aug to 12:45 on Wed 1 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-09-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-09-02", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30176, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-09-02T10:53:17+08:00", "utc": "1937-09-02T02:53:17Z", "ms": -1020287203375.7147 }, "end": { "local": "1937-09-03T09:13:51+08:00", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-02T10:53:17+08:00", "utc": "1937-09-02T02:53:17Z", "ms": -1020287203375.7147 }, "end": { "local": "1937-09-03T09:13:51+08:00", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-09-02", "window": { "start": { "local": "1937-09-02T19:16:13+08:00", "utc": "1937-09-02T11:16:13Z", "ms": -1020257027151.8319 }, "end": { "local": "1937-09-02T20:45:03+08:00", "utc": "1937-09-02T12:45:03Z", "ms": -1020251697445.809 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "1937-09-03", "window": { "start": { "local": "1937-09-03T19:14:49+08:00", "utc": "1937-09-03T11:14:49Z", "ms": -1020170711174.6808 }, "end": { "local": "1937-09-03T20:43:56+08:00", "utc": "1937-09-03T12:43:56Z", "ms": -1020165364163.1134 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:53 on Thu 2 Sep to 09:14 on Fri 3 Sep.", "fact": "1937-09-02T02:53:17Z → 1937-09-03T01:13:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:16–20:45 on the 2nd, 19:15–20:44 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 89 of 89 minutes on the 2nd and 0 of 89 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 30176 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Thursday 2 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": "1937-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-02", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Thursday 2 September. Trayodaśī runs from 10:53 on Thu 2 Sep to 09:14 on Fri 3 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-09-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36058, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-09-03T09:13:51+08:00", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 }, "end": { "local": "1937-09-04T07:51:50+08:00", "utc": "1937-09-03T23:51:50Z", "ms": -1020125290295.7279 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-03T09:13:51+08:00", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 }, "end": { "local": "1937-09-04T07:51:50+08:00", "utc": "1937-09-03T23:51:50Z", "ms": -1020125290295.7279 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-09-03", "window": { "start": { "local": "1937-09-03T19:14:49+08:00", "utc": "1937-09-03T11:14:49Z", "ms": -1020170711174.6808 }, "end": { "local": "1937-09-03T20:43:56+08:00", "utc": "1937-09-03T12:43:56Z", "ms": -1020165364163.1134 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "1937-09-04", "window": { "start": { "local": "1937-09-04T19:13:24+08:00", "utc": "1937-09-04T11:13:24Z", "ms": -1020084395664.9899 }, "end": { "local": "1937-09-04T20:42:49+08:00", "utc": "1937-09-04T12:42:49Z", "ms": -1020079031292.3154 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:14 on Fri 3 Sep to 07:52 on Sat 4 Sep.", "fact": "1937-09-03T01:13:51Z → 1937-09-03T23:51:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:15–20:44 on the 3rd, 19:13–20:43 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 89 of 89 minutes on the 3rd and 0 of 89 on the 4th.", "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 36058 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Qingyang, 1937: Friday 3 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": "1937-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-03", "confidence": "determinate" } ], "quote": "In Qingyang, Aghora Caturdaśī 1937 falls on Friday 3 September. Caturdaśī runs from 09:14 on Fri 3 Sep to 07:52 on Sat 4 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/shivaratri?on=1937-09-03", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23930, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-09-03T09:13:51+08:00", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 }, "end": { "local": "1937-09-04T07:51:50+08:00", "utc": "1937-09-03T23:51:50Z", "ms": -1020125290295.7279 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-03T09:13:51+08:00", "utc": "1937-09-03T01:13:51Z", "ms": -1020206769209.0559 }, "end": { "local": "1937-09-04T07:51:50+08:00", "utc": "1937-09-03T23:51:50Z", "ms": -1020125290295.7279 } }, "kaala": "nishita", "days": [ { "local_date": "1937-09-02", "window": { "start": { "local": "1937-09-03T00:25:19+08:00", "utc": "1937-09-02T16:25:19Z", "ms": -1020238480754.2461 }, "end": { "local": "1937-09-03T01:13:19+08:00", "utc": "1937-09-02T17:13:19Z", "ms": -1020235600754.2461 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-09-03", "window": { "start": { "local": "1937-09-04T00:25:00+08:00", "utc": "1937-09-03T16:25:00Z", "ms": -1020152099881.303 }, "end": { "local": "1937-09-04T01:13:00+08:00", "utc": "1937-09-03T17:13:00Z", "ms": -1020149219881.303 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:14 on Fri 3 Sep to 07:52 on Sat 4 Sep.", "fact": "1937-09-03T01:13:51Z → 1937-09-03T23:51:50Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:25–01:13 on the 2nd, 00:25–01:13 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 23930 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Friday 3 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": "1937-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-03", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Friday 3 September. Caturdaśī runs from 09:14 on Fri 3 Sep to 07:52 on Sat 4 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-09-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19832, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-09-05T06:53:26+08:00", "utc": "1937-09-04T22:53:26Z", "ms": -1020042393576.4163 }, "end": { "local": "1937-09-06T06:24:57+08:00", "utc": "1937-09-05T22:24:57Z", "ms": -1019957703486.5648 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-05T06:53:26+08:00", "utc": "1937-09-04T22:53:26Z", "ms": -1020042393576.4163 }, "end": { "local": "1937-09-06T06:24:57+08:00", "utc": "1937-09-05T22:24:57Z", "ms": -1019957703486.5648 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-05", "window": { "start": { "local": "1937-09-05T12:23:58+08:00", "utc": "1937-09-05T04:23:58Z", "ms": -1020022561733.6312 }, "end": { "local": "1937-09-05T13:11:58+08:00", "utc": "1937-09-05T05:11:58Z", "ms": -1020019681733.6312 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-06", "window": { "start": { "local": "1937-09-06T12:23:38+08:00", "utc": "1937-09-06T04:23:38Z", "ms": -1019936181573.4927 }, "end": { "local": "1937-09-06T13:11:38+08:00", "utc": "1937-09-06T05:11:38Z", "ms": -1019933301573.4927 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 06:53 on Sun 5 Sep to 06:25 on Mon 6 Sep.", "fact": "1937-09-04T22:53:26Z → 1937-09-05T22:24:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 5th, 12:24–13:12 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 19832 s" }, { "step": "ruling", "text": "Rudra Vrata, Qingyang, 1937: Sunday 5 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": "1937-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-05", "confidence": "determinate" } ], "quote": "In Qingyang, Rudra Vrata 1937 falls on Sunday 5 September. Pratipadā runs from 06:53 on Sun 5 Sep to 06:25 on Mon 6 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18350, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1937-09-07T06:31:43+08:00", "utc": "1937-09-06T22:31:43Z", "ms": -1019870896879.2007 }, "end": { "local": "1937-09-08T07:17:08+08:00", "utc": "1937-09-07T23:17:08Z", "ms": -1019781771655.0399 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-07T06:31:43+08:00", "utc": "1937-09-06T22:31:43Z", "ms": -1019870896879.2007 }, "end": { "local": "1937-09-08T07:17:08+08:00", "utc": "1937-09-07T23:17:08Z", "ms": -1019781771655.0399 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-07", "window": { "start": { "local": "1937-09-07T12:23:18+08:00", "utc": "1937-09-07T04:23:18Z", "ms": -1019849801631.7698 }, "end": { "local": "1937-09-07T13:11:18+08:00", "utc": "1937-09-07T05:11:18Z", "ms": -1019846921631.7698 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-08", "window": { "start": { "local": "1937-09-08T12:22:58+08:00", "utc": "1937-09-08T04:22:58Z", "ms": -1019763421893.5021 }, "end": { "local": "1937-09-08T13:10:58+08:00", "utc": "1937-09-08T05:10:58Z", "ms": -1019760541893.5021 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:32 on Tue 7 Sep to 07:17 on Wed 8 Sep.", "fact": "1937-09-06T22:31:43Z → 1937-09-07T23:17:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 7th, 12:23–13:11 on the 8th.", "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 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: paraviddha → only-day · margin 18350 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Qingyang, 1937: Tuesday 7 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": "1937-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-07", "confidence": "determinate" } ], "quote": "In Qingyang, Haritālikā Vrata (Hartalika Teej) 1937 falls on Tuesday 7 September. Tṛtīyā runs from 06:32 on Tue 7 Sep to 07:17 on Wed 8 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13280, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-09-08T07:17:08+08:00", "utc": "1937-09-07T23:17:08Z", "ms": -1019781771655.0399 }, "end": { "local": "1937-09-09T08:41:18+08:00", "utc": "1937-09-09T00:41:18Z", "ms": -1019690322014.935 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-08T07:17:08+08:00", "utc": "1937-09-07T23:17:08Z", "ms": -1019781771655.0399 }, "end": { "local": "1937-09-09T08:41:18+08:00", "utc": "1937-09-09T00:41:18Z", "ms": -1019690322014.935 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-08", "window": { "start": { "local": "1937-09-08T12:22:58+08:00", "utc": "1937-09-08T04:22:58Z", "ms": -1019763421893.5021 }, "end": { "local": "1937-09-08T13:10:58+08:00", "utc": "1937-09-08T05:10:58Z", "ms": -1019760541893.5021 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-09", "window": { "start": { "local": "1937-09-09T12:22:38+08:00", "utc": "1937-09-09T04:22:38Z", "ms": -1019677042342.9927 }, "end": { "local": "1937-09-09T13:10:38+08:00", "utc": "1937-09-09T05:10:38Z", "ms": -1019674162342.9927 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:17 on Wed 8 Sep to 08:41 on Thu 9 Sep.", "fact": "1937-09-07T23:17:08Z → 1937-09-09T00:41:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 8th, 12:23–13:11 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 13280 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Qingyang, 1937: Wednesday 8 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": "1937-09-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-08", "confidence": "determinate" } ], "quote": "In Qingyang, Gaṇeśa Caturthī 1937 falls on Wednesday 8 September. Caturthī runs from 07:17 on Wed 8 Sep to 08:41 on Thu 9 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6141, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-09-09T08:41:18+08:00", "utc": "1937-09-09T00:41:18Z", "ms": -1019690322014.935 }, "end": { "local": "1937-09-10T10:39:56+08:00", "utc": "1937-09-10T02:39:56Z", "ms": -1019596804133.8535 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-09T08:41:18+08:00", "utc": "1937-09-09T00:41:18Z", "ms": -1019690322014.935 }, "end": { "local": "1937-09-10T10:39:56+08:00", "utc": "1937-09-10T02:39:56Z", "ms": -1019596804133.8535 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-09", "window": { "start": { "local": "1937-09-09T12:22:38+08:00", "utc": "1937-09-09T04:22:38Z", "ms": -1019677042342.9927 }, "end": { "local": "1937-09-09T13:10:38+08:00", "utc": "1937-09-09T05:10:38Z", "ms": -1019674162342.9927 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-10", "window": { "start": { "local": "1937-09-10T12:22:17+08:00", "utc": "1937-09-10T04:22:17Z", "ms": -1019590662963.814 }, "end": { "local": "1937-09-10T13:10:17+08:00", "utc": "1937-09-10T05:10:17Z", "ms": -1019587782963.814 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 08:41 on Thu 9 Sep to 10:40 on Fri 10 Sep.", "fact": "1937-09-09T00:41:18Z → 1937-09-10T02:39:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 9th, 12:22–13:10 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 6141 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Qingyang, 1937: Thursday 9 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": "1937-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-09", "confidence": "determinate" } ], "quote": "In Qingyang, Ṛṣi Pañcamī 1937 falls on Thursday 9 September. Pañcamī runs from 08:41 on Thu 9 Sep to 10:40 on Fri 10 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 363, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-09-10T10:39:56+08:00", "utc": "1937-09-10T02:39:56Z", "ms": -1019596804133.8535 }, "end": { "local": "1937-09-11T13:03:54+08:00", "utc": "1937-09-11T05:03:54Z", "ms": -1019501766441.2549 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-10T10:39:56+08:00", "utc": "1937-09-10T02:39:56Z", "ms": -1019596804133.8535 }, "end": { "local": "1937-09-11T13:03:54+08:00", "utc": "1937-09-11T05:03:54Z", "ms": -1019501766441.2549 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-10", "window": { "start": { "local": "1937-09-10T12:22:17+08:00", "utc": "1937-09-10T04:22:17Z", "ms": -1019590662963.814 }, "end": { "local": "1937-09-10T13:10:17+08:00", "utc": "1937-09-10T05:10:17Z", "ms": -1019587782963.814 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-11", "window": { "start": { "local": "1937-09-11T12:21:56+08:00", "utc": "1937-09-11T04:21:56Z", "ms": -1019504283738.8375 }, "end": { "local": "1937-09-11T13:09:56+08:00", "utc": "1937-09-11T05:09:56Z", "ms": -1019501403738.8375 } }, "covered_min": 42, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 10:40 on Fri 10 Sep to 13:04 on Sat 11 Sep.", "fact": "1937-09-10T02:39:56Z → 1937-09-11T05:03:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 10th, 12:22–13:10 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 42 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 363 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Qingyang, 1937: Saturday 11 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": "1937-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-11", "confidence": "determinate" } ], "quote": "In Qingyang, Sūrya Ṣaṣṭhī (Bhādrapada) 1937 falls on Saturday 11 September. Ṣaṣṭhī runs from 10:40 on Fri 10 Sep to 13:04 on Sat 11 Sep and covers 42 of 48 minutes 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/qingyang/festivals/1937/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": "/qingyang/festivals/1937/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 363, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-09-11T13:03:54+08:00", "utc": "1937-09-11T05:03:54Z", "ms": -1019501766441.2549 }, "end": { "local": "1937-09-12T15:39:43+08:00", "utc": "1937-09-12T07:39:43Z", "ms": -1019406017318.5349 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-11T13:03:54+08:00", "utc": "1937-09-11T05:03:54Z", "ms": -1019501766441.2549 }, "end": { "local": "1937-09-12T15:39:43+08:00", "utc": "1937-09-12T07:39:43Z", "ms": -1019406017318.5349 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-11", "window": { "start": { "local": "1937-09-11T12:21:56+08:00", "utc": "1937-09-11T04:21:56Z", "ms": -1019504283738.8375 }, "end": { "local": "1937-09-11T13:09:56+08:00", "utc": "1937-09-11T05:09:56Z", "ms": -1019501403738.8375 } }, "covered_min": 6, "window_min": 48, "qualifies": true }, { "local_date": "1937-09-12", "window": { "start": { "local": "1937-09-12T12:21:35+08:00", "utc": "1937-09-12T04:21:35Z", "ms": -1019417904650.3094 }, "end": { "local": "1937-09-12T13:09:35+08:00", "utc": "1937-09-12T05:09:35Z", "ms": -1019415024650.3094 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Saptamī runs from 13:04 on Sat 11 Sep to 15:40 on Sun 12 Sep.", "fact": "1937-09-11T05:03:54Z → 1937-09-12T07:39:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 11th, 12:22–13:10 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 6 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": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 363 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Qingyang, 1937: Saturday 11 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": "1937-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-11", "confidence": "determinate" } ], "quote": "In Qingyang, Muktābharaṇa Vrata 1937 falls on Saturday 11 September. Saptamī runs from 13:04 on Sat 11 Sep to 15:40 on Sun 12 Sep and covers 6 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9007, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-09-12T15:39:43+08:00", "utc": "1937-09-12T07:39:43Z", "ms": -1019406017318.5349 }, "end": { "local": "1937-09-13T18:11:21+08:00", "utc": "1937-09-13T10:11:21Z", "ms": -1019310519338.5941 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-12T15:39:43+08:00", "utc": "1937-09-12T07:39:43Z", "ms": -1019406017318.5349 }, "end": { "local": "1937-09-13T18:11:21+08:00", "utc": "1937-09-13T10:11:21Z", "ms": -1019310519338.5941 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-12", "window": { "start": { "local": "1937-09-12T12:21:35+08:00", "utc": "1937-09-12T04:21:35Z", "ms": -1019417904650.3094 }, "end": { "local": "1937-09-12T13:09:35+08:00", "utc": "1937-09-12T05:09:35Z", "ms": -1019415024650.3094 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-09-13", "window": { "start": { "local": "1937-09-13T12:21:14+08:00", "utc": "1937-09-13T04:21:14Z", "ms": -1019331525679.7634 }, "end": { "local": "1937-09-13T13:09:14+08:00", "utc": "1937-09-13T05:09:14Z", "ms": -1019328645679.7634 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 15:40 on Sun 12 Sep to 18:11 on Mon 13 Sep.", "fact": "1937-09-12T07:39:43Z → 1937-09-13T10:11:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 12th, 12:21–13:09 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 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: unstated → only-day · margin 9007 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Qingyang, 1937: Monday 13 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": "1937-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-13", "confidence": "determinate" } ], "quote": "In Qingyang, Rādhāṣṭamī 1937 falls on Monday 13 September. Aṣṭamī runs from 15:40 on Sun 12 Sep to 18:11 on Mon 13 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-09-16", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27377, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-09-15T22:00:51+08:00", "utc": "1937-09-15T14:00:51Z", "ms": -1019123949095.1306 }, "end": { "local": "1937-09-16T22:56:46+08:00", "utc": "1937-09-16T14:56:46Z", "ms": -1019034193792.5149 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-15T22:00:51+08:00", "utc": "1937-09-15T14:00:51Z", "ms": -1019123949095.1306 }, "end": { "local": "1937-09-16T22:56:46+08:00", "utc": "1937-09-16T14:56:46Z", "ms": -1019034193792.5149 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-09-16", "window": { "start": { "local": "1937-09-16T06:32:18+08:00", "utc": "1937-09-15T22:32:18Z", "ms": -1019093262075.918 }, "end": { "local": "1937-09-16T06:32:18+08:00", "utc": "1937-09-15T22:32:18Z", "ms": -1019093262075.918 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-09-17", "window": { "start": { "local": "1937-09-17T06:33:03+08:00", "utc": "1937-09-16T22:33:03Z", "ms": -1019006816538.5773 }, "end": { "local": "1937-09-17T06:33:03+08:00", "utc": "1937-09-16T22:33:03Z", "ms": -1019006816538.5773 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:01 on Wed 15 Sep to 22:57 on Thu 16 Sep.", "fact": "1937-09-15T14:00:51Z → 1937-09-16T14:56:46Z" }, { "step": "kaala", "text": "Sunrise is at 06:32 on the 16th and 06:33 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 16th and is not on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27377 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Qingyang, 1937: Thursday 16 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": "1937-09-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-16", "confidence": "determinate" } ], "quote": "In Qingyang, Parivartanī Ekādaśī 1937 falls on Thursday 16 September. Ekādaśī runs from 22:01 on Wed 15 Sep to 22:57 on Thu 16 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-09-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35315, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-09-16T22:56:46+08:00", "utc": "1937-09-16T14:56:46Z", "ms": -1019034193792.5149 }, "end": { "local": "1937-09-17T23:07:03+08:00", "utc": "1937-09-17T15:07:03Z", "ms": -1018947176933.4634 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-16T22:56:46+08:00", "utc": "1937-09-16T14:56:46Z", "ms": -1019034193792.5149 }, "end": { "local": "1937-09-17T23:07:03+08:00", "utc": "1937-09-17T15:07:03Z", "ms": -1018947176933.4634 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-09-16", "window": { "start": { "local": "1937-09-16T12:20:11+08:00", "utc": "1937-09-16T04:20:11Z", "ms": -1019072389282.9321 }, "end": { "local": "1937-09-16T13:08:11+08:00", "utc": "1937-09-16T05:08:11Z", "ms": -1019069509282.9321 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-09-17", "window": { "start": { "local": "1937-09-17T12:19:49+08:00", "utc": "1937-09-17T04:19:49Z", "ms": -1018986010587.9448 }, "end": { "local": "1937-09-17T13:07:49+08:00", "utc": "1937-09-17T05:07:49Z", "ms": -1018983130587.9448 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 22:57 on Thu 16 Sep to 23:07 on Fri 17 Sep.", "fact": "1937-09-16T14:56:46Z → 1937-09-17T15:07:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 16th, 12:20–13:08 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 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35315 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Qingyang, 1937: Friday 17 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": "1937-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-17", "confidence": "determinate" } ], "quote": "In Qingyang, Vāmana Jayantī 1937 falls on Friday 17 September. Dvādaśī runs from 22:57 on Thu 16 Sep to 23:07 on Fri 17 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/pradosha-vrata?on=1937-09-18", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7573, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-09-17T23:07:03+08:00", "utc": "1937-09-17T15:07:03Z", "ms": -1018947176933.4634 }, "end": { "local": "1937-09-18T22:32:51+08:00", "utc": "1937-09-18T14:32:51Z", "ms": -1018862828536.0422 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-17T23:07:03+08:00", "utc": "1937-09-17T15:07:03Z", "ms": -1018947176933.4634 }, "end": { "local": "1937-09-18T22:32:51+08:00", "utc": "1937-09-18T14:32:51Z", "ms": -1018862828536.0422 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-09-17", "window": { "start": { "local": "1937-09-17T18:54:35+08:00", "utc": "1937-09-17T10:54:35Z", "ms": -1018962324637.3125 }, "end": { "local": "1937-09-17T20:27:49+08:00", "utc": "1937-09-17T12:27:49Z", "ms": -1018956730812.513 } }, "covered_min": 0, "window_min": 93, "qualifies": false }, { "local_date": "1937-09-18", "window": { "start": { "local": "1937-09-18T18:53:07+08:00", "utc": "1937-09-18T10:53:07Z", "ms": -1018876012867.2635 }, "end": { "local": "1937-09-18T20:26:39+08:00", "utc": "1937-09-18T12:26:39Z", "ms": -1018870401191.5325 } }, "covered_min": 94, "window_min": 94, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:07 on Fri 17 Sep to 22:33 on Sat 18 Sep.", "fact": "1937-09-17T15:07:03Z → 1937-09-18T14:32:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:55–20:28 on the 17th, 18:53–20:27 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 0 of 93 minutes on the 17th and 94 of 94 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 7573 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Saturday 18 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": "1937-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-18", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Saturday 18 September. Trayodaśī runs from 23:07 on Fri 17 Sep to 22:33 on Sat 18 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-09-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28903, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-09-18T22:32:51+08:00", "utc": "1937-09-18T14:32:51Z", "ms": -1018862828536.0422 }, "end": { "local": "1937-09-19T21:18:57+08:00", "utc": "1937-09-19T13:18:57Z", "ms": -1018780863327.4735 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1937-09-18T22:32:51+08:00", "utc": "1937-09-18T14:32:51Z", "ms": -1018862828536.0422 }, "end": { "local": "1937-09-19T21:18:57+08:00", "utc": "1937-09-19T13:18:57Z", "ms": -1018780863327.4735 } }, "kaala": "udaya-3", "days": [ { "local_date": "1937-09-19", "window": { "start": { "local": "1937-09-19T06:34:35+08:00", "utc": "1937-09-18T22:34:35Z", "ms": -1018833925299.2809 }, "end": { "local": "1937-09-19T09:02:00+08:00", "utc": "1937-09-19T01:02:00Z", "ms": -1018825080469.3116 } }, "covered_min": 147, "window_min": 147, "qualifies": true }, { "local_date": "1937-09-20", "window": { "start": { "local": "1937-09-20T06:35:20+08:00", "utc": "1937-09-19T22:35:20Z", "ms": -1018747479566.3772 }, "end": { "local": "1937-09-20T09:02:18+08:00", "utc": "1937-09-20T01:02:18Z", "ms": -1018738661543.7062 } }, "covered_min": 0, "window_min": 147, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:33 on Sat 18 Sep to 21:19 on Sun 19 Sep.", "fact": "1937-09-18T14:32:51Z → 1937-09-19T13:18:57Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:35–09:02 on the 19th, 06:35–09:02 on the 20th.", "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 147 of 147 minutes on the 19th and 0 of 147 on the 20th.", "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 28903 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Qingyang, 1937: Sunday 19 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": "1937-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-19", "confidence": "determinate" } ], "quote": "In Qingyang, Ananta Caturdaśī 1937 falls on Sunday 19 September. Caturdaśī runs from 22:33 on Sat 18 Sep to 21:19 on Sun 19 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-09-23", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28942, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-09-23T12:19:44+08:00", "utc": "1937-09-23T04:19:44Z", "ms": -1018467616466.2965 }, "end": { "local": "1937-09-24T09:44:04+08:00", "utc": "1937-09-24T01:44:04Z", "ms": -1018390555873.8285 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-09-23T12:19:44+08:00", "utc": "1937-09-23T04:19:44Z", "ms": -1018467616466.2965 }, "end": { "local": "1937-09-24T09:44:04+08:00", "utc": "1937-09-24T01:44:04Z", "ms": -1018390555873.8285 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-09-23", "window": { "start": { "local": "1937-09-23T20:22:05+08:00", "utc": "1937-09-23T12:22:05Z", "ms": -1018438674601.0385 }, "end": { "local": "1937-09-23T20:22:05+08:00", "utc": "1937-09-23T12:22:05Z", "ms": -1018438674601.0385 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-09-24", "window": { "start": { "local": "1937-09-24T21:10:03+08:00", "utc": "1937-09-24T13:10:03Z", "ms": -1018349396936.8823 }, "end": { "local": "1937-09-24T21:10:03+08:00", "utc": "1937-09-24T13:10:03Z", "ms": -1018349396936.8823 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:20 on Thu 23 Sep to 09:44 on Fri 24 Sep.", "fact": "1937-09-23T04:19:44Z → 1937-09-24T01:44:04Z" }, { "step": "kaala", "text": "Moonrise is at 20:22 on the 23rd and 21:10 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 28942 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Thursday 23 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": "1937-09-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-23", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Thursday 23 September. Caturthī runs from 12:20 on Thu 23 Sep to 09:44 on Fri 24 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-09-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24465, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-09-25T07:13:20+08:00", "utc": "1937-09-24T23:13:20Z", "ms": -1018313199907.0742 }, "end": { "local": "1937-09-26T04:51:53+08:00", "utc": "1937-09-25T20:51:53Z", "ms": -1018235287276.9434 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-09-25T07:13:20+08:00", "utc": "1937-09-24T23:13:20Z", "ms": -1018313199907.0742 }, "end": { "local": "1937-09-26T04:51:53+08:00", "utc": "1937-09-25T20:51:53Z", "ms": -1018235287276.9434 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-09-24", "window": { "start": { "local": "1937-09-24T21:10:03+08:00", "utc": "1937-09-24T13:10:03Z", "ms": -1018349396936.8823 }, "end": { "local": "1937-09-24T21:10:03+08:00", "utc": "1937-09-24T13:10:03Z", "ms": -1018349396936.8823 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-09-25", "window": { "start": { "local": "1937-09-25T22:04:08+08:00", "utc": "1937-09-25T14:04:08Z", "ms": -1018259752353.7664 }, "end": { "local": "1937-09-25T22:04:08+08:00", "utc": "1937-09-25T14:04:08Z", "ms": -1018259752353.7664 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 07:13 on Sat 25 Sep to 04:52 on Sun 26 Sep.", "fact": "1937-09-24T23:13:20Z → 1937-09-25T20:51:53Z" }, { "step": "kaala", "text": "Moonrise is at 21:10 on the 24th and 22:04 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī 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: purvaviddha → only-day · margin 24465 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Qingyang, 1937: Saturday 25 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": "1937-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-25", "confidence": "determinate" } ], "quote": "In Qingyang, Candra Ṣaṣṭhī 1937 falls on Saturday 25 September. Ṣaṣṭhī runs from 07:13 on Sat 25 Sep to 04:52 on Sun 26 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16290, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-09-27T02:42:41+08:00", "utc": "1937-09-26T18:42:41Z", "ms": -1018156638863.3011 }, "end": { "local": "1937-09-28T00:47:37+08:00", "utc": "1937-09-27T16:47:37Z", "ms": -1018077142651.9767 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-09-27T02:42:41+08:00", "utc": "1937-09-26T18:42:41Z", "ms": -1018156638863.3011 }, "end": { "local": "1937-09-28T00:47:37+08:00", "utc": "1937-09-27T16:47:37Z", "ms": -1018077142651.9767 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-09-26", "window": { "start": { "local": "1937-09-26T18:41:22+08:00", "utc": "1937-09-26T10:41:22Z", "ms": -1018185517958.4015 }, "end": { "local": "1937-09-26T20:17:17+08:00", "utc": "1937-09-26T12:17:17Z", "ms": -1018179762991.388 } }, "covered_min": 0, "window_min": 96, "qualifies": false }, { "local_date": "1937-09-27", "window": { "start": { "local": "1937-09-27T18:39:54+08:00", "utc": "1937-09-27T10:39:54Z", "ms": -1018099205527.7922 }, "end": { "local": "1937-09-27T20:16:07+08:00", "utc": "1937-09-27T12:16:07Z", "ms": -1018093432619.3633 } }, "covered_min": 96, "window_min": 96, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 02:43 on Mon 27 Sep to 00:48 on Tue 28 Sep.", "fact": "1937-09-26T18:42:41Z → 1937-09-27T16:47:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:41–20:17 on the 26th, 18:40–20:16 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 0 of 96 minutes on the 26th and 96 of 96 on the 27th.", "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 16290 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Qingyang, 1937: Monday 27 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": "1937-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-27", "confidence": "determinate" } ], "quote": "In Qingyang, Jitāṣṭamī (Jitiya) 1937 falls on Monday 27 September. Aṣṭamī runs from 02:43 on Mon 27 Sep to 00:48 on Tue 28 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2418, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-09-27T02:42:41+08:00", "utc": "1937-09-26T18:42:41Z", "ms": -1018156638863.3011 }, "end": { "local": "1937-09-28T00:47:37+08:00", "utc": "1937-09-27T16:47:37Z", "ms": -1018077142651.9767 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-09-27T02:42:41+08:00", "utc": "1937-09-26T18:42:41Z", "ms": -1018156638863.3011 }, "end": { "local": "1937-09-28T00:47:37+08:00", "utc": "1937-09-27T16:47:37Z", "ms": -1018077142651.9767 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-09-26", "window": { "start": { "local": "1937-09-26T23:03:46+08:00", "utc": "1937-09-26T15:03:46Z", "ms": -1018169773828.5277 }, "end": { "local": "1937-09-26T23:03:46+08:00", "utc": "1937-09-26T15:03:46Z", "ms": -1018169773828.5277 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-09-27", "window": { "start": { "local": "1937-09-28T00:07:19+08:00", "utc": "1937-09-27T16:07:19Z", "ms": -1018079560772.5455 }, "end": { "local": "1937-09-28T00:07:19+08:00", "utc": "1937-09-27T16:07:19Z", "ms": -1018079560772.5455 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 02:43 on Mon 27 Sep to 00:48 on Tue 28 Sep.", "fact": "1937-09-26T18:42:41Z → 1937-09-27T16:47:37Z" }, { "step": "kaala", "text": "Moonrise is at 23:04 on the 26th and 00:07 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī 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. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2418 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Qingyang, 1937: Monday 27 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": "1937-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-27", "confidence": "determinate" } ], "quote": "In Qingyang, Mahālakṣmī Vrata Samāpana 1937 falls on Monday 27 September. Aṣṭamī runs from 02:43 on Mon 27 Sep to 00:48 on Tue 28 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-09-30", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-09-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32324, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-09-29T21:44:22+08:00", "utc": "1937-09-29T13:44:22Z", "ms": -1017915337999.3219 }, "end": { "local": "1937-09-30T20:38:25+08:00", "utc": "1937-09-30T12:38:25Z", "ms": -1017832894598.2101 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-09-29T21:44:22+08:00", "utc": "1937-09-29T13:44:22Z", "ms": -1017915337999.3219 }, "end": { "local": "1937-09-30T20:38:25+08:00", "utc": "1937-09-30T12:38:25Z", "ms": -1017832894598.2101 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-09-30", "window": { "start": { "local": "1937-09-30T06:43:06+08:00", "utc": "1937-09-29T22:43:06Z", "ms": -1017883014063.881 }, "end": { "local": "1937-09-30T06:43:06+08:00", "utc": "1937-09-29T22:43:06Z", "ms": -1017883014063.881 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-10-01", "window": { "start": { "local": "1937-10-01T06:43:54+08:00", "utc": "1937-09-30T22:43:54Z", "ms": -1017796566386.6927 }, "end": { "local": "1937-10-01T06:43:54+08:00", "utc": "1937-09-30T22:43:54Z", "ms": -1017796566386.6927 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:44 on Wed 29 Sep to 20:38 on Thu 30 Sep.", "fact": "1937-09-29T13:44:22Z → 1937-09-30T12:38:25Z" }, { "step": "kaala", "text": "Sunrise is at 06:43 on the 30th and 06:44 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 32324 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Qingyang, 1937: Thursday 30 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": "1937-09-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-09-30", "confidence": "determinate" } ], "quote": "In Qingyang, Indirā Ekādaśī 1937 falls on Thursday 30 September. Ekādaśī runs from 21:44 on Wed 29 Sep to 20:38 on Thu 30 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-09-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-10-02", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-02", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1175, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-10-01T19:51:56+08:00", "utc": "1937-10-01T11:51:56Z", "ms": -1017749284049.9578 }, "end": { "local": "1937-10-02T19:27:32+08:00", "utc": "1937-10-02T11:27:32Z", "ms": -1017664347996.8364 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-01T19:51:56+08:00", "utc": "1937-10-01T11:51:56Z", "ms": -1017749284049.9578 }, "end": { "local": "1937-10-02T19:27:32+08:00", "utc": "1937-10-02T11:27:32Z", "ms": -1017664347996.8364 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-10-01", "window": { "start": { "local": "1937-10-01T18:34:07+08:00", "utc": "1937-10-01T10:34:07Z", "ms": -1017753953219.6708 }, "end": { "local": "1937-10-01T20:11:31+08:00", "utc": "1937-10-01T12:11:31Z", "ms": -1017748108585.6583 } }, "covered_min": 20, "window_min": 97, "qualifies": true }, { "local_date": "1937-10-02", "window": { "start": { "local": "1937-10-02T18:32:41+08:00", "utc": "1937-10-02T10:32:41Z", "ms": -1017667639354.5138 }, "end": { "local": "1937-10-02T20:10:23+08:00", "utc": "1937-10-02T12:10:23Z", "ms": -1017661776812.655 } }, "covered_min": 55, "window_min": 98, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:52 on Fri 1 Oct to 19:28 on Sat 2 Oct.", "fact": "1937-10-01T11:51:56Z → 1937-10-02T11:27:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:34–20:12 on the 1st, 18:33–20:10 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 20 of 97 minutes on the 1st and 55 of 98 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 1175 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Saturday 2 October.", "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": "1937-10-02", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-01", "confidence": "boundary" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Saturday 2 October. Trayodaśī runs from 19:52 on Fri 1 Oct to 19:28 on Sat 2 Oct and covers 55 of 98 minutes of pradoṣa that evening. It also reaches the previous evening for 20 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-10-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-10-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17182, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-10-02T19:27:32+08:00", "utc": "1937-10-02T11:27:32Z", "ms": -1017664347996.8364 }, "end": { "local": "1937-10-03T19:28:24+08:00", "utc": "1937-10-03T11:28:24Z", "ms": -1017577895584.8766 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-02T19:27:32+08:00", "utc": "1937-10-02T11:27:32Z", "ms": -1017664347996.8364 }, "end": { "local": "1937-10-03T19:28:24+08:00", "utc": "1937-10-03T11:28:24Z", "ms": -1017577895584.8766 } }, "kaala": "nishita", "days": [ { "local_date": "1937-10-02", "window": { "start": { "local": "1937-10-03T00:15:05+08:00", "utc": "1937-10-02T16:15:05Z", "ms": -1017647094822.5435 }, "end": { "local": "1937-10-03T01:03:05+08:00", "utc": "1937-10-02T17:03:05Z", "ms": -1017644214822.5435 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-10-03", "window": { "start": { "local": "1937-10-04T00:14:47+08:00", "utc": "1937-10-03T16:14:47Z", "ms": -1017560713488.7678 }, "end": { "local": "1937-10-04T01:02:47+08:00", "utc": "1937-10-03T17:02:47Z", "ms": -1017557833488.7678 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:28 on Sat 2 Oct to 19:28 on Sun 3 Oct.", "fact": "1937-10-02T11:27:32Z → 1937-10-03T11:28:24Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:15–01:03 on the 2nd, 00:15–01:03 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 17182 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Saturday 2 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": "1937-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-02", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Saturday 2 October. Caturdaśī runs from 19:28 on Sat 2 Oct to 19:28 on Sun 3 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-10-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11899, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1937-10-03T19:28:24+08:00", "utc": "1937-10-03T11:28:24Z", "ms": -1017577895584.8766 }, "end": { "local": "1937-10-04T19:57:47+08:00", "utc": "1937-10-04T11:57:47Z", "ms": -1017489733348.4623 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-03T19:28:24+08:00", "utc": "1937-10-03T11:28:24Z", "ms": -1017577895584.8766 }, "end": { "local": "1937-10-04T19:57:47+08:00", "utc": "1937-10-04T11:57:47Z", "ms": -1017489733348.4623 } }, "kaala": "aparahna", "days": [ { "local_date": "1937-10-03", "window": { "start": { "local": "1937-10-03T13:48:57+08:00", "utc": "1937-10-03T05:48:57Z", "ms": -1017598263187.8365 }, "end": { "local": "1937-10-03T16:10:06+08:00", "utc": "1937-10-03T08:10:06Z", "ms": -1017589794153.5911 } }, "covered_min": 0, "window_min": 141, "qualifies": false }, { "local_date": "1937-10-04", "window": { "start": { "local": "1937-10-04T13:48:25+08:00", "utc": "1937-10-04T05:48:25Z", "ms": -1017511895035.6296 }, "end": { "local": "1937-10-04T16:09:07+08:00", "utc": "1937-10-04T08:09:07Z", "ms": -1017503452761.4429 } }, "covered_min": 141, "window_min": 141, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 19:28 on Sun 3 Oct to 19:58 on Mon 4 Oct.", "fact": "1937-10-03T11:28:24Z → 1937-10-04T11:57:47Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:49–16:10 on the 3rd, 13:48–16:09 on the 4th.", "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 141 minutes on the 3rd and 141 of 141 on the 4th.", "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 11899 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Qingyang, 1937: Monday 4 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalaya-amavasya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Mahalaya amavasya (aparahnavyapini)" } ], "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.", "kaala": "aparahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-04", "confidence": "determinate" } ], "quote": "In Qingyang, Mahālaya Amāvāsyā 1937 falls on Monday 4 October. Amāvasyā runs from 19:28 on Sun 3 Oct to 19:58 on Mon 4 Oct and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24943, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-10-04T19:57:47+08:00", "utc": "1937-10-04T11:57:47Z", "ms": -1017489733348.4623 }, "end": { "local": "1937-10-05T20:58:08+08:00", "utc": "1937-10-05T12:58:08Z", "ms": -1017399712183.2717 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-04T19:57:47+08:00", "utc": "1937-10-04T11:57:47Z", "ms": -1017489733348.4623 }, "end": { "local": "1937-10-05T20:58:08+08:00", "utc": "1937-10-05T12:58:08Z", "ms": -1017399712183.2717 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-10-04", "window": { "start": { "local": "1937-10-04T12:14:04+08:00", "utc": "1937-10-04T04:14:04Z", "ms": -1017517556172.7231 }, "end": { "local": "1937-10-04T13:02:04+08:00", "utc": "1937-10-04T05:02:04Z", "ms": -1017514676172.7231 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-10-05", "window": { "start": { "local": "1937-10-05T12:13:46+08:00", "utc": "1937-10-05T04:13:46Z", "ms": -1017431174296.2815 }, "end": { "local": "1937-10-05T13:01:46+08:00", "utc": "1937-10-05T05:01:46Z", "ms": -1017428294296.2815 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 19:58 on Mon 4 Oct to 20:58 on Tue 5 Oct.", "fact": "1937-10-04T11:57:47Z → 1937-10-05T12:58:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 4th, 12:14–13:02 on the 5th.", "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 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24943 s" }, { "step": "ruling", "text": "Navarātrārambha, Qingyang, 1937: Tuesday 5 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": "1937-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-05", "confidence": "determinate" } ], "quote": "In Qingyang, Navarātrārambha (Navratri) 1937 falls on Tuesday 5 October. Pratipadā runs from 19:58 on Mon 4 Oct to 20:58 on Tue 5 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-10-08", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33304, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-10-08T00:31:56+08:00", "utc": "1937-10-07T16:31:56Z", "ms": -1017214083505.9772 }, "end": { "local": "1937-10-09T02:57:33+08:00", "utc": "1937-10-08T18:57:33Z", "ms": -1017118947061.8578 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-08T00:31:56+08:00", "utc": "1937-10-07T16:31:56Z", "ms": -1017214083505.9772 }, "end": { "local": "1937-10-09T02:57:33+08:00", "utc": "1937-10-08T18:57:33Z", "ms": -1017118947061.8578 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-10-08", "window": { "start": { "local": "1937-10-08T12:12:54+08:00", "utc": "1937-10-08T04:12:54Z", "ms": -1017172026435.6987 }, "end": { "local": "1937-10-08T13:00:54+08:00", "utc": "1937-10-08T05:00:54Z", "ms": -1017169146435.6987 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-10-09", "window": { "start": { "local": "1937-10-09T12:12:37+08:00", "utc": "1937-10-09T04:12:37Z", "ms": -1017085643015.6755 }, "end": { "local": "1937-10-09T13:00:37+08:00", "utc": "1937-10-09T05:00:37Z", "ms": -1017082763015.6755 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:32 on Fri 8 Oct to 02:58 on Sat 9 Oct.", "fact": "1937-10-07T16:31:56Z → 1937-10-08T18:57:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 8th, 12:13–13:01 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 33304 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1937: Friday 8 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": "1937-10-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-08", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1937 falls on Friday 8 October. Caturthī runs from 00:32 on Fri 8 Oct to 02:58 on Sat 9 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-10-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2385, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-10-11T08:17:41+08:00", "utc": "1937-10-11T00:17:41Z", "ms": -1016926938522.7854 }, "end": { "local": "1937-10-12T10:43:54+08:00", "utc": "1937-10-12T02:43:54Z", "ms": -1016831766404.6862 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-11T08:17:41+08:00", "utc": "1937-10-11T00:17:41Z", "ms": -1016926938522.7854 }, "end": { "local": "1937-10-12T10:43:54+08:00", "utc": "1937-10-12T02:43:54Z", "ms": -1016831766404.6862 } }, "kaala": "udaya-1", "days": [ { "local_date": "1937-10-11", "window": { "start": { "local": "1937-10-11T06:52:05+08:00", "utc": "1937-10-10T22:52:05Z", "ms": -1016932075099.2532 }, "end": { "local": "1937-10-11T07:37:57+08:00", "utc": "1937-10-10T23:37:57Z", "ms": -1016929323069.064 } }, "covered_min": 0, "window_min": 46, "qualifies": false }, { "local_date": "1937-10-12", "window": { "start": { "local": "1937-10-12T06:52:56+08:00", "utc": "1937-10-11T22:52:56Z", "ms": -1016845624389.0669 }, "end": { "local": "1937-10-12T07:38:39+08:00", "utc": "1937-10-11T23:38:39Z", "ms": -1016842881152.5162 } }, "covered_min": 46, "window_min": 46, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 08:18 on Mon 11 Oct to 10:44 on Tue 12 Oct.", "fact": "1937-10-11T00:17:41Z → 1937-10-12T02:43:54Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:52–07:38 on the 11th, 06:53–07:39 on the 12th.", "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 11th and 46 of 46 on the 12th.", "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 2385 s" }, { "step": "ruling", "text": "Durgā Saptamī, Qingyang, 1937: Tuesday 12 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": "1937-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-12", "confidence": "determinate" } ], "quote": "In Qingyang, Durgā Saptamī 1937 falls on Tuesday 12 October. Saptamī runs from 08:18 on Mon 11 Oct to 10:44 on Tue 12 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1099, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-10-12T10:43:54+08:00", "utc": "1937-10-12T02:43:54Z", "ms": -1016831766404.6862 }, "end": { "local": "1937-10-13T12:41:16+08:00", "utc": "1937-10-13T04:41:16Z", "ms": -1016738323983.7999 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-12T10:43:54+08:00", "utc": "1937-10-12T02:43:54Z", "ms": -1016831766404.6862 }, "end": { "local": "1937-10-13T12:41:16+08:00", "utc": "1937-10-13T04:41:16Z", "ms": -1016738323983.7999 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-10-12", "window": { "start": { "local": "1937-10-12T12:11:50+08:00", "utc": "1937-10-12T04:11:50Z", "ms": -1016826490114.9365 }, "end": { "local": "1937-10-12T12:59:50+08:00", "utc": "1937-10-12T04:59:50Z", "ms": -1016823610114.9365 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-10-13", "window": { "start": { "local": "1937-10-13T12:11:35+08:00", "utc": "1937-10-13T04:11:35Z", "ms": -1016740104875.6497 }, "end": { "local": "1937-10-13T12:59:35+08:00", "utc": "1937-10-13T04:59:35Z", "ms": -1016737224875.6497 } }, "covered_min": 30, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:44 on Tue 12 Oct to 12:41 on Wed 13 Oct.", "fact": "1937-10-12T02:43:54Z → 1937-10-13T04:41:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 12th, 12:12–13:00 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 30 of 48 on the 13th.", "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 1099 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Qingyang, 1937: Wednesday 13 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": "1937-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-13", "confidence": "determinate" } ], "quote": "In Qingyang, Mahāṣṭamī (Durga Ashtami) 1937 falls on Wednesday 13 October. Aṣṭamī runs from 10:44 on Tue 12 Oct to 12:41 on Wed 13 Oct and covers 30 of 48 minutes 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/qingyang/festivals/1937/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": "/qingyang/festivals/1937/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1099, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1937-10-13T12:41:16+08:00", "utc": "1937-10-13T04:41:16Z", "ms": -1016738323983.7999 }, "end": { "local": "1937-10-14T13:58:06+08:00", "utc": "1937-10-14T05:58:06Z", "ms": -1016647313892.7218 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-13T12:41:16+08:00", "utc": "1937-10-13T04:41:16Z", "ms": -1016738323983.7999 }, "end": { "local": "1937-10-14T13:58:06+08:00", "utc": "1937-10-14T05:58:06Z", "ms": -1016647313892.7218 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-10-13", "window": { "start": { "local": "1937-10-13T12:11:35+08:00", "utc": "1937-10-13T04:11:35Z", "ms": -1016740104875.6497 }, "end": { "local": "1937-10-13T12:59:35+08:00", "utc": "1937-10-13T04:59:35Z", "ms": -1016737224875.6497 } }, "covered_min": 18, "window_min": 48, "qualifies": true }, { "local_date": "1937-10-14", "window": { "start": { "local": "1937-10-14T12:11:21+08:00", "utc": "1937-10-14T04:11:21Z", "ms": -1016653719136.8599 }, "end": { "local": "1937-10-14T12:59:21+08:00", "utc": "1937-10-14T04:59:21Z", "ms": -1016650839136.8599 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Navamī runs from 12:41 on Wed 13 Oct to 13:58 on Thu 14 Oct.", "fact": "1937-10-13T04:41:16Z → 1937-10-14T05:58:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 13th, 12:11–12:59 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 18 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. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 1099 s" }, { "step": "ruling", "text": "Mahānavamī, Qingyang, 1937: Wednesday 13 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": "1937-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-13", "confidence": "determinate" } ], "quote": "In Qingyang, Mahānavamī 1937 falls on Wednesday 13 October. Navamī runs from 12:41 on Wed 13 Oct to 13:58 on Thu 14 Oct and covers 18 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7526, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1937-10-14T13:58:06+08:00", "utc": "1937-10-14T05:58:06Z", "ms": -1016647313892.7218 }, "end": { "local": "1937-10-15T14:27:07+08:00", "utc": "1937-10-15T06:27:07Z", "ms": -1016559172593.4556 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "1937-10-14T13:58:06+08:00", "utc": "1937-10-14T05:58:06Z", "ms": -1016647313892.7218 }, "end": { "local": "1937-10-15T04:50:03+08:00", "utc": "1937-10-14T20:50:03Z", "ms": -1016593796860.2607 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "1937-10-14T03:25:39+08:00", "utc": "1937-10-13T19:25:39Z", "ms": -1016685261358.6554 }, "end": { "local": "1937-10-15T04:50:03+08:00", "utc": "1937-10-14T20:50:03Z", "ms": -1016593796860.2607 } } }, "kaala": "daytime", "days": [ { "local_date": "1937-10-14", "window": { "start": { "local": "1937-10-14T06:54:38+08:00", "utc": "1937-10-13T22:54:38Z", "ms": -1016672722032.5485 }, "end": { "local": "1937-10-14T18:16:04+08:00", "utc": "1937-10-14T10:16:04Z", "ms": -1016631836241.1714 } }, "covered_min": 258, "window_min": 681, "qualifies": true }, { "local_date": "1937-10-15", "window": { "start": { "local": "1937-10-15T06:55:30+08:00", "utc": "1937-10-14T22:55:30Z", "ms": -1016586270374.9387 }, "end": { "local": "1937-10-15T18:14:45+08:00", "utc": "1937-10-15T10:14:45Z", "ms": -1016545515385.3191 } }, "covered_min": 0, "window_min": 679, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 13:58 on Thu 14 Oct to 14:27 on Fri 15 Oct, and Śravaṇa from 03:26 on Thu 14 Oct to 04:50 on Fri 15 Oct. They are together from 13:58 on Thu 14 Oct to 04:50 on Fri 15 Oct.", "fact": "1937-10-14T05:58:06Z → 1937-10-14T20:50:03Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 06:55–18:16 on the 14th, 06:55–18:15 on the 15th.", "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 258 of 681 minutes on the 14th and 0 of 679 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7526 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Qingyang, 1937: Thursday 14 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vijaya-dashami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 10 Vijaya dasami (In Bengal it is observed as paraviddha, covering one muhurta from sunrise. In other places, if it touches Sravana naksatra in the day time it is observed on that day), Sarasvati visarjana (to be observed in naksatra Sravana), Dasahara." } ], "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day", "conjunction": { "nakshatra": "Śravaṇa", "kaala": "daytime" } }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-14", "confidence": "determinate" } ], "quote": "In Qingyang, Vijayā Daśamī (Dussehra) 1937 falls on Thursday 14 October. Daśamī runs from 13:58 on Thu 14 Oct to 14:27 on Fri 15 Oct and is with Śravaṇa in the day time that day, for 258 minutes.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-10-16", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25778, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-10-15T14:27:07+08:00", "utc": "1937-10-15T06:27:07Z", "ms": -1016559172593.4556 }, "end": { "local": "1937-10-16T14:05:59+08:00", "utc": "1937-10-16T06:05:59Z", "ms": -1016474040541.784 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-15T14:27:07+08:00", "utc": "1937-10-15T06:27:07Z", "ms": -1016559172593.4556 }, "end": { "local": "1937-10-16T14:05:59+08:00", "utc": "1937-10-16T06:05:59Z", "ms": -1016474040541.784 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-10-15", "window": { "start": { "local": "1937-10-15T06:55:30+08:00", "utc": "1937-10-14T22:55:30Z", "ms": -1016586270374.9387 }, "end": { "local": "1937-10-15T06:55:30+08:00", "utc": "1937-10-14T22:55:30Z", "ms": -1016586270374.9387 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-10-16", "window": { "start": { "local": "1937-10-16T06:56:22+08:00", "utc": "1937-10-15T22:56:22Z", "ms": -1016499818389.9503 }, "end": { "local": "1937-10-16T06:56:22+08:00", "utc": "1937-10-15T22:56:22Z", "ms": -1016499818389.9503 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:27 on Fri 15 Oct to 14:06 on Sat 16 Oct.", "fact": "1937-10-15T06:27:07Z → 1937-10-16T06:05:59Z" }, { "step": "kaala", "text": "Sunrise is at 06:55 on the 15th and 06:56 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 25778 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Qingyang, 1937: Saturday 16 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": "1937-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-16", "confidence": "determinate" } ], "quote": "In Qingyang, Pāśāṅkuśā Ekādaśī 1937 falls on Saturday 16 October. Ekādaśī runs from 14:27 on Fri 15 Oct to 14:06 on Sat 16 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-10-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-10-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18919, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-10-17T12:56:50+08:00", "utc": "1937-10-17T04:56:50Z", "ms": -1016391790054.2931 }, "end": { "local": "1937-10-18T11:05:14+08:00", "utc": "1937-10-18T03:05:14Z", "ms": -1016312086296.1594 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1937-10-17T12:56:50+08:00", "utc": "1937-10-17T04:56:50Z", "ms": -1016391790054.2931 }, "end": { "local": "1937-10-18T11:05:14+08:00", "utc": "1937-10-18T03:05:14Z", "ms": -1016312086296.1594 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-10-17", "window": { "start": { "local": "1937-10-17T18:12:09+08:00", "utc": "1937-10-17T10:12:09Z", "ms": -1016372871402.3909 }, "end": { "local": "1937-10-17T19:54:16+08:00", "utc": "1937-10-17T11:54:16Z", "ms": -1016366743670.3353 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1937-10-18", "window": { "start": { "local": "1937-10-18T18:10:52+08:00", "utc": "1937-10-18T10:10:52Z", "ms": -1016286548209.5995 }, "end": { "local": "1937-10-18T19:53:17+08:00", "utc": "1937-10-18T11:53:17Z", "ms": -1016280403168.9333 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:57 on Sun 17 Oct to 11:05 on Mon 18 Oct.", "fact": "1937-10-17T04:56:50Z → 1937-10-18T03:05:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:12–19:54 on the 17th, 18:11–19:53 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 102 of 102 minutes on the 17th and 0 of 102 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 18919 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Sunday 17 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": "1937-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-17", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Sunday 17 October. Trayodaśī runs from 12:57 on Sun 17 Oct to 11:05 on Mon 18 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-10-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-22", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1172, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-10-22T20:14:43+08:00", "utc": "1937-10-22T12:14:43Z", "ms": -1015933517469.9591 }, "end": { "local": "1937-10-23T17:13:36+08:00", "utc": "1937-10-23T09:13:36Z", "ms": -1015857984004.6055 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-22T20:14:43+08:00", "utc": "1937-10-22T12:14:43Z", "ms": -1015933517469.9591 }, "end": { "local": "1937-10-23T17:13:36+08:00", "utc": "1937-10-23T09:13:36Z", "ms": -1015857984004.6055 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-10-22", "window": { "start": { "local": "1937-10-22T19:55:10+08:00", "utc": "1937-10-22T11:55:10Z", "ms": -1015934689879.8116 }, "end": { "local": "1937-10-22T19:55:10+08:00", "utc": "1937-10-22T11:55:10Z", "ms": -1015934689879.8116 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-10-23", "window": { "start": { "local": "1937-10-23T20:54:58+08:00", "utc": "1937-10-23T12:54:58Z", "ms": -1015844701687.5752 }, "end": { "local": "1937-10-23T20:54:58+08:00", "utc": "1937-10-23T12:54:58Z", "ms": -1015844701687.5752 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:15 on Fri 22 Oct to 17:14 on Sat 23 Oct.", "fact": "1937-10-22T12:14:43Z → 1937-10-23T09:13:36Z" }, { "step": "kaala", "text": "Moonrise is at 19:55 on the 22nd and 20:55 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. 104" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: purvaviddha → tithi-day · margin 1172 s" }, { "step": "ruling", "text": "Karaka Caturthī, Qingyang, 1937: Friday 22 October.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "1937-10-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-22", "confidence": "boundary" } ], "quote": "In Qingyang, Karaka Caturthī (Karwa Chauth) 1937 falls on Friday 22 October. Caturthī runs from 20:15 on Fri 22 Oct to 17:14 on Sat 23 Oct, and is current at moonrise on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-10-22", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-22", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1172, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-10-22T20:14:43+08:00", "utc": "1937-10-22T12:14:43Z", "ms": -1015933517469.9591 }, "end": { "local": "1937-10-23T17:13:36+08:00", "utc": "1937-10-23T09:13:36Z", "ms": -1015857984004.6055 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-22T20:14:43+08:00", "utc": "1937-10-22T12:14:43Z", "ms": -1015933517469.9591 }, "end": { "local": "1937-10-23T17:13:36+08:00", "utc": "1937-10-23T09:13:36Z", "ms": -1015857984004.6055 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-10-22", "window": { "start": { "local": "1937-10-22T19:55:10+08:00", "utc": "1937-10-22T11:55:10Z", "ms": -1015934689879.8116 }, "end": { "local": "1937-10-22T19:55:10+08:00", "utc": "1937-10-22T11:55:10Z", "ms": -1015934689879.8116 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-10-23", "window": { "start": { "local": "1937-10-23T20:54:58+08:00", "utc": "1937-10-23T12:54:58Z", "ms": -1015844701687.5752 }, "end": { "local": "1937-10-23T20:54:58+08:00", "utc": "1937-10-23T12:54:58Z", "ms": -1015844701687.5752 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:15 on Fri 22 Oct to 17:14 on Sat 23 Oct.", "fact": "1937-10-22T12:14:43Z → 1937-10-23T09:13:36Z" }, { "step": "kaala", "text": "Moonrise is at 19:55 on the 22nd and 20:55 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 1172 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Friday 22 October.", "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": "1937-10-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-22", "confidence": "boundary" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Friday 22 October. Caturthī runs from 20:15 on Fri 22 Oct to 17:14 on Sat 23 Oct, and is current at moonrise on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-10-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30875, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-10-26T10:12:34+08:00", "utc": "1937-10-26T02:12:34Z", "ms": -1015624046019.2338 }, "end": { "local": "1937-10-27T08:45:59+08:00", "utc": "1937-10-27T00:45:59Z", "ms": -1015542840779.1746 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-26T10:12:34+08:00", "utc": "1937-10-26T02:12:34Z", "ms": -1015624046019.2338 }, "end": { "local": "1937-10-27T08:45:59+08:00", "utc": "1937-10-27T00:45:59Z", "ms": -1015542840779.1746 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-10-25", "window": { "start": { "local": "1937-10-25T23:05:29+08:00", "utc": "1937-10-25T15:05:29Z", "ms": -1015664071356.8099 }, "end": { "local": "1937-10-25T23:05:29+08:00", "utc": "1937-10-25T15:05:29Z", "ms": -1015664071356.8099 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-10-26", "window": { "start": { "local": "1937-10-27T00:11:24+08:00", "utc": "1937-10-26T16:11:24Z", "ms": -1015573716001.1461 }, "end": { "local": "1937-10-27T00:11:24+08:00", "utc": "1937-10-26T16:11:24Z", "ms": -1015573716001.1461 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:13 on Tue 26 Oct to 08:46 on Wed 27 Oct.", "fact": "1937-10-26T02:12:34Z → 1937-10-27T00:45:59Z" }, { "step": "kaala", "text": "Moonrise is at 23:05 on the 25th and 00:11 on the 26th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī 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. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30875 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Qingyang, 1937: Tuesday 26 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": "1937-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-26", "confidence": "determinate" } ], "quote": "In Qingyang, Ahoyī Aṣṭamī 1937 falls on Tuesday 26 October. Aṣṭamī runs from 10:13 on Tue 26 Oct to 08:46 on Wed 27 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-10-30", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 878, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-10-29T07:22:48+08:00", "utc": "1937-10-28T23:22:48Z", "ms": -1015375032401.7195 }, "end": { "local": "1937-10-30T07:25:53+08:00", "utc": "1937-10-29T23:25:53Z", "ms": -1015288446781.6421 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-29T07:22:48+08:00", "utc": "1937-10-28T23:22:48Z", "ms": -1015375032401.7195 }, "end": { "local": "1937-10-30T07:25:53+08:00", "utc": "1937-10-29T23:25:53Z", "ms": -1015288446781.6421 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-10-29", "window": { "start": { "local": "1937-10-29T07:08:10+08:00", "utc": "1937-10-28T23:08:10Z", "ms": -1015375910006.5515 }, "end": { "local": "1937-10-29T07:08:10+08:00", "utc": "1937-10-28T23:08:10Z", "ms": -1015375910006.5515 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-10-30", "window": { "start": { "local": "1937-10-30T07:09:07+08:00", "utc": "1937-10-29T23:09:07Z", "ms": -1015289452951.6171 }, "end": { "local": "1937-10-30T07:09:07+08:00", "utc": "1937-10-29T23:09:07Z", "ms": -1015289452951.6171 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:23 on Fri 29 Oct to 07:26 on Sat 30 Oct.", "fact": "1937-10-28T23:22:48Z → 1937-10-29T23:25:53Z" }, { "step": "kaala", "text": "Sunrise is at 07:08 on the 29th and 07:09 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 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: paraviddha → only-day · margin 878 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Qingyang, 1937: Saturday 30 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": "1937-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-30", "confidence": "determinate" } ], "quote": "In Qingyang, Ramā Ekādaśī 1937 falls on Saturday 30 October. Ekādaśī runs from 07:23 on Fri 29 Oct to 07:26 on Sat 30 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-10-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35874, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-10-30T07:25:53+08:00", "utc": "1937-10-29T23:25:53Z", "ms": -1015288446781.6421 }, "end": { "local": "1937-10-31T07:57:49+08:00", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-30T07:25:53+08:00", "utc": "1937-10-29T23:25:53Z", "ms": -1015288446781.6421 }, "end": { "local": "1937-10-31T07:57:49+08:00", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-10-30", "window": { "start": { "local": "1937-10-30T17:56:46+08:00", "utc": "1937-10-30T09:56:46Z", "ms": -1015250593913.2822 }, "end": { "local": "1937-10-30T19:42:33+08:00", "utc": "1937-10-30T11:42:33Z", "ms": -1015244247466.3975 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1937-10-31", "window": { "start": { "local": "1937-10-31T17:55:43+08:00", "utc": "1937-10-31T09:55:43Z", "ms": -1015164257028.8745 }, "end": { "local": "1937-10-31T19:41:46+08:00", "utc": "1937-10-31T11:41:46Z", "ms": -1015157894471.7709 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 07:26 on Sat 30 Oct to 07:58 on Sun 31 Oct.", "fact": "1937-10-29T23:25:53Z → 1937-10-30T23:57:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:57–19:43 on the 30th, 17:56–19:42 on the 31st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 30th and 0 of 106 on the 31st.", "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 35874 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Qingyang, 1937: Saturday 30 October.", "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": "1937-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-30", "confidence": "determinate" } ], "quote": "In Qingyang, Govatsa Dvādaśī (Vasu Baras) 1937 falls on Saturday 30 October. Dvādaśī runs from 07:26 on Sat 30 Oct to 07:58 on Sun 31 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32223, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-10-31T07:57:49+08:00", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 }, "end": { "local": "1937-11-01T08:57:38+08:00", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-31T07:57:49+08:00", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 }, "end": { "local": "1937-11-01T08:57:38+08:00", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-10-31", "window": { "start": { "local": "1937-10-31T17:55:43+08:00", "utc": "1937-10-31T09:55:43Z", "ms": -1015164257028.8745 }, "end": { "local": "1937-10-31T19:41:46+08:00", "utc": "1937-10-31T11:41:46Z", "ms": -1015157894471.7709 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1937-11-01", "window": { "start": { "local": "1937-11-01T17:54:41+08:00", "utc": "1937-11-01T09:54:41Z", "ms": -1015077918866.4254 }, "end": { "local": "1937-11-01T19:41:00+08:00", "utc": "1937-11-01T11:41:00Z", "ms": -1015071540328.7682 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:58 on Sun 31 Oct to 08:58 on Mon 1 Nov.", "fact": "1937-10-30T23:57:49Z → 1937-11-01T00:57:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:56–19:42 on the 31st, 17:55–19:41 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 106 of 106 minutes on the 31st and 0 of 106 on the 1st.", "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 32223 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Qingyang, 1937: Sunday 31 October.", "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": "1937-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-31", "confidence": "determinate" } ], "quote": "In Qingyang, Yama Dīpadāna 1937 falls on Sunday 31 October. Trayodaśī runs from 07:58 on Sun 31 Oct to 08:58 on Mon 1 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/pradosha-vrata?on=1937-10-31", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32223, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-10-31T07:57:49+08:00", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 }, "end": { "local": "1937-11-01T08:57:38+08:00", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-10-31T07:57:49+08:00", "utc": "1937-10-30T23:57:49Z", "ms": -1015200130786.7297 }, "end": { "local": "1937-11-01T08:57:38+08:00", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-10-31", "window": { "start": { "local": "1937-10-31T17:55:43+08:00", "utc": "1937-10-31T09:55:43Z", "ms": -1015164257028.8745 }, "end": { "local": "1937-10-31T19:41:46+08:00", "utc": "1937-10-31T11:41:46Z", "ms": -1015157894471.7709 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1937-11-01", "window": { "start": { "local": "1937-11-01T17:54:41+08:00", "utc": "1937-11-01T09:54:41Z", "ms": -1015077918866.4254 }, "end": { "local": "1937-11-01T19:41:00+08:00", "utc": "1937-11-01T11:41:00Z", "ms": -1015071540328.7682 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:58 on Sun 31 Oct to 08:58 on Mon 1 Nov.", "fact": "1937-10-30T23:57:49Z → 1937-11-01T00:57:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:56–19:42 on the 31st, 17:55–19:41 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 106 of 106 minutes on the 31st and 0 of 106 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 32223 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Sunday 31 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": "1937-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-10-31", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Sunday 31 October. Trayodaśī runs from 07:58 on Sun 31 Oct to 08:58 on Mon 1 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-10-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-11-01", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28816, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-11-01T08:57:38+08:00", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "end": { "local": "1937-11-02T10:24:11+08:00", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-01T08:57:38+08:00", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "end": { "local": "1937-11-02T10:24:11+08:00", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 } }, "kaala": "nishita", "days": [ { "local_date": "1937-10-31", "window": { "start": { "local": "1937-11-01T00:09:23+08:00", "utc": "1937-10-31T16:09:23Z", "ms": -1015141837439.7358 }, "end": { "local": "1937-11-01T00:57:23+08:00", "utc": "1937-10-31T16:57:23Z", "ms": -1015138957439.7358 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-01", "window": { "start": { "local": "1937-11-02T00:09:21+08:00", "utc": "1937-11-01T16:09:21Z", "ms": -1015055439350.2107 }, "end": { "local": "1937-11-02T00:57:21+08:00", "utc": "1937-11-01T16:57:21Z", "ms": -1015052559350.2107 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:58 on Mon 1 Nov to 10:24 on Tue 2 Nov.", "fact": "1937-11-01T00:57:38Z → 1937-11-02T02:24:11Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:09–00:57 on the 31st, 00:09–00:57 on the 1st.", "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 31st and 48 of 48 on the 1st.", "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 28816 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Monday 1 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": "1937-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-01", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Monday 1 November. Caturdaśī runs from 08:58 on Mon 1 Nov to 10:24 on Tue 2 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-11-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6396, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-11-01T08:57:38+08:00", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "end": { "local": "1937-11-02T10:24:11+08:00", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-01T08:57:38+08:00", "utc": "1937-11-01T00:57:38Z", "ms": -1015110141646.0306 }, "end": { "local": "1937-11-02T10:24:11+08:00", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 } }, "kaala": "arunodaya", "days": [ { "local_date": "1937-11-01", "window": { "start": { "local": "1937-11-01T05:25:00+08:00", "utc": "1937-10-31T21:25:00Z", "ms": -1015122900407.7009 }, "end": { "local": "1937-11-01T07:11:02+08:00", "utc": "1937-10-31T23:11:02Z", "ms": -1015116537850.5973 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "1937-11-02", "window": { "start": { "local": "1937-11-02T05:25:42+08:00", "utc": "1937-11-01T21:25:42Z", "ms": -1015036458371.6531 }, "end": { "local": "1937-11-02T07:12:00+08:00", "utc": "1937-11-01T23:12:00Z", "ms": -1015030079833.9958 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:58 on Mon 1 Nov to 10:24 on Tue 2 Nov.", "fact": "1937-11-01T00:57:38Z → 1937-11-02T02:24:11Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:25–07:11 on the 1st, 05:26–07:12 on the 2nd.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 106 minutes on the 1st and 106 of 106 on the 2nd.", "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 6396 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Qingyang, 1937: Tuesday 2 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-02", "confidence": "determinate" } ], "quote": "In Qingyang, Naraka Caturdaśī (Choti Diwali) 1937 falls on Tuesday 2 November. Caturdaśī runs from 08:58 on Mon 1 Nov to 10:24 on Tue 2 Nov and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20216, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1937-11-02T10:24:11+08:00", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "end": { "local": "1937-11-03T12:15:45+08:00", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-02T10:24:11+08:00", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "end": { "local": "1937-11-03T12:15:45+08:00", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-11-02", "window": { "start": { "local": "1937-11-02T17:53:41+08:00", "utc": "1937-11-02T09:53:41Z", "ms": -1014991579397.1726 }, "end": { "local": "1937-11-02T19:40:15+08:00", "utc": "1937-11-02T11:40:15Z", "ms": -1014985185014.7302 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1937-11-03", "window": { "start": { "local": "1937-11-03T17:52:41+08:00", "utc": "1937-11-03T09:52:41Z", "ms": -1014905238592.6619 }, "end": { "local": "1937-11-03T19:39:31+08:00", "utc": "1937-11-03T11:39:31Z", "ms": -1014898828507.452 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 10:24 on Tue 2 Nov to 12:16 on Wed 3 Nov.", "fact": "1937-11-02T02:24:11Z → 1937-11-03T04:15:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:54–19:40 on the 2nd, 17:53–19:40 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā 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 20216 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Qingyang, 1937: Tuesday 2 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": "1937-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-02", "confidence": "determinate" } ], "quote": "In Qingyang, Lakṣmī Pūjā (Diwali) 1937 falls on Tuesday 2 November. Amāvasyā runs from 10:24 on Tue 2 Nov to 12:16 on Wed 3 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34010, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1937-11-02T10:24:11+08:00", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "end": { "local": "1937-11-03T12:15:45+08:00", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-02T10:24:11+08:00", "utc": "1937-11-02T02:24:11Z", "ms": -1015018549226.2974 }, "end": { "local": "1937-11-03T12:15:45+08:00", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 } }, "kaala": "nishita", "days": [ { "local_date": "1937-11-01", "window": { "start": { "local": "1937-11-02T00:09:21+08:00", "utc": "1937-11-01T16:09:21Z", "ms": -1015055439350.2107 }, "end": { "local": "1937-11-02T00:57:21+08:00", "utc": "1937-11-01T16:57:21Z", "ms": -1015052559350.2107 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-02", "window": { "start": { "local": "1937-11-03T00:09:20+08:00", "utc": "1937-11-02T16:09:20Z", "ms": -1014969040463.0137 }, "end": { "local": "1937-11-03T00:57:20+08:00", "utc": "1937-11-02T16:57:20Z", "ms": -1014966160463.0137 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 10:24 on Tue 2 Nov to 12:16 on Wed 3 Nov.", "fact": "1937-11-02T02:24:11Z → 1937-11-03T04:15:45Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:09–00:57 on the 1st, 00:09–00:57 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "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 34010 s" }, { "step": "ruling", "text": "Kālī Pūjā, Qingyang, 1937: Tuesday 2 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": "1937-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-02", "confidence": "determinate" } ], "quote": "In Qingyang, Kālī Pūjā 1937 falls on Tuesday 2 November. Amāvasyā runs from 10:24 on Tue 2 Nov to 12:16 on Wed 3 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 415, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-11-03T12:15:45+08:00", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T14:29:36+08:00", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-03T12:15:45+08:00", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T14:29:36+08:00", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-03", "window": { "start": { "local": "1937-11-03T12:08:50+08:00", "utc": "1937-11-03T04:08:50Z", "ms": -1014925870060.7583 }, "end": { "local": "1937-11-03T12:56:50+08:00", "utc": "1937-11-03T04:56:50Z", "ms": -1014922990060.7583 } }, "covered_min": 41, "window_min": 48, "qualifies": true }, { "local_date": "1937-11-04", "window": { "start": { "local": "1937-11-04T12:08:50+08:00", "utc": "1937-11-04T04:08:50Z", "ms": -1014839469689.1113 }, "end": { "local": "1937-11-04T12:56:50+08:00", "utc": "1937-11-04T04:56:50Z", "ms": -1014836589689.1113 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:16 on Wed 3 Nov to 14:30 on Thu 4 Nov.", "fact": "1937-11-03T04:15:45Z → 1937-11-04T06:29:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 3rd, 12:09–12:57 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 41 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": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 415 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Qingyang, 1937: Wednesday 3 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": "1937-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-03", "confidence": "determinate" } ], "quote": "In Qingyang, Govardhana Pūjā 1937 falls on Wednesday 3 November. Pratipadā runs from 12:16 on Wed 3 Nov to 14:30 on Thu 4 Nov and covers 41 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12128, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-11-03T12:15:45+08:00", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T14:29:36+08:00", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-03T12:15:45+08:00", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T14:29:36+08:00", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-11-03", "window": { "start": { "local": "1937-11-03T17:52:41+08:00", "utc": "1937-11-03T09:52:41Z", "ms": -1014905238592.6619 }, "end": { "local": "1937-11-03T19:39:31+08:00", "utc": "1937-11-03T11:39:31Z", "ms": -1014898828507.452 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1937-11-04", "window": { "start": { "local": "1937-11-04T17:51:44+08:00", "utc": "1937-11-04T09:51:44Z", "ms": -1014818896424.635 }, "end": { "local": "1937-11-04T19:38:49+08:00", "utc": "1937-11-04T11:38:49Z", "ms": -1014812470785.0729 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:16 on Wed 3 Nov to 14:30 on Thu 4 Nov.", "fact": "1937-11-03T04:15:45Z → 1937-11-04T06:29:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:53–19:40 on the 3rd, 17:52–19:39 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 107 of 107 minutes on the 3rd and 0 of 107 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12128 s" }, { "step": "ruling", "text": "Bali Pūjā, Qingyang, 1937: Wednesday 3 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": "1937-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-03", "confidence": "determinate" } ], "quote": "In Qingyang, Bali Pūjā 1937 falls on Wednesday 3 November. Pratipadā runs from 12:16 on Wed 3 Nov to 14:30 on Thu 4 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5372, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1937-11-03T12:15:45+08:00", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T14:29:36+08:00", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-03T12:15:45+08:00", "utc": "1937-11-03T04:15:45Z", "ms": -1014925454950.9741 }, "end": { "local": "1937-11-04T14:29:36+08:00", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 } }, "kaala": "purvahna", "days": [ { "local_date": "1937-11-03", "window": { "start": { "local": "1937-11-03T07:12:58+08:00", "utc": "1937-11-02T23:12:58Z", "ms": -1014943621528.8549 }, "end": { "local": "1937-11-03T10:46:13+08:00", "utc": "1937-11-03T02:46:13Z", "ms": -1014930827216.7905 } }, "covered_min": 0, "window_min": 213, "qualifies": false }, { "local_date": "1937-11-04", "window": { "start": { "local": "1937-11-04T07:13:57+08:00", "utc": "1937-11-03T23:13:57Z", "ms": -1014857162953.5876 }, "end": { "local": "1937-11-04T10:46:33+08:00", "utc": "1937-11-04T02:46:33Z", "ms": -1014844407443.9368 } }, "covered_min": 213, "window_min": 213, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:16 on Wed 3 Nov to 14:30 on Thu 4 Nov.", "fact": "1937-11-03T04:15:45Z → 1937-11-04T06:29:36Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:13–10:46 on the 3rd, 07:14–10:47 on the 4th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 0 of 213 minutes on the 3rd and 213 of 213 on the 4th.", "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 5372 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Qingyang, 1937: Thursday 4 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": "1937-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-04", "confidence": "determinate" } ], "quote": "In Qingyang, Dyūta Pratipad 1937 falls on Thursday 4 November. Pratipadā runs from 12:16 on Wed 3 Nov to 14:30 on Thu 4 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5566, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1937-11-04T14:29:36+08:00", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 }, "end": { "local": "1937-11-05T17:01:15+08:00", "utc": "1937-11-05T09:01:15Z", "ms": -1014735524511.694 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-04T14:29:36+08:00", "utc": "1937-11-04T06:29:36Z", "ms": -1014831024111.0588 }, "end": { "local": "1937-11-05T17:01:15+08:00", "utc": "1937-11-05T09:01:15Z", "ms": -1014735524511.694 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-04", "window": { "start": { "local": "1937-11-04T12:08:50+08:00", "utc": "1937-11-04T04:08:50Z", "ms": -1014839469689.1113 }, "end": { "local": "1937-11-04T12:56:50+08:00", "utc": "1937-11-04T04:56:50Z", "ms": -1014836589689.1113 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-05", "window": { "start": { "local": "1937-11-05T12:08:52+08:00", "utc": "1937-11-05T04:08:52Z", "ms": -1014753068496.4343 }, "end": { "local": "1937-11-05T12:56:52+08:00", "utc": "1937-11-05T04:56:52Z", "ms": -1014750188496.4343 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 14:30 on Thu 4 Nov to 17:01 on Fri 5 Nov.", "fact": "1937-11-04T06:29:36Z → 1937-11-05T09:01:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 4th, 12:09–12:57 on the 5th.", "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 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5566 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Qingyang, 1937: Friday 5 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": "1937-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-05", "confidence": "determinate" } ], "quote": "In Qingyang, Yama Dvitīyā (Bhai Dooj) 1937 falls on Friday 5 November. Dvitīyā runs from 14:30 on Thu 4 Nov to 17:01 on Fri 5 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24427, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-11-06T19:44:01+08:00", "utc": "1937-11-06T11:44:01Z", "ms": -1014639359464.9072 }, "end": { "local": "1937-11-07T22:28:40+08:00", "utc": "1937-11-07T14:28:40Z", "ms": -1014543079621.6318 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-06T19:44:01+08:00", "utc": "1937-11-06T11:44:01Z", "ms": -1014639359464.9072 }, "end": { "local": "1937-11-07T22:28:40+08:00", "utc": "1937-11-07T14:28:40Z", "ms": -1014543079621.6318 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-06", "window": { "start": { "local": "1937-11-06T12:08:54+08:00", "utc": "1937-11-06T04:08:54Z", "ms": -1014666666479.1626 }, "end": { "local": "1937-11-06T12:56:54+08:00", "utc": "1937-11-06T04:56:54Z", "ms": -1014663786479.1626 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-07", "window": { "start": { "local": "1937-11-07T12:08:56+08:00", "utc": "1937-11-07T04:08:56Z", "ms": -1014580263634.3267 }, "end": { "local": "1937-11-07T12:56:56+08:00", "utc": "1937-11-07T04:56:56Z", "ms": -1014577383634.3267 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:44 on Sat 6 Nov to 22:29 on Sun 7 Nov.", "fact": "1937-11-06T11:44:01Z → 1937-11-07T14:28:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 6th, 12:09–12:57 on the 7th.", "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 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 24427 s" }, { "step": "ruling", "text": "Nāga Caturthī, Qingyang, 1937: Sunday 7 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": "1937-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-07", "confidence": "determinate" } ], "quote": "In Qingyang, Nāga Caturthī 1937 falls on Sunday 7 November. Caturthī runs from 19:44 on Sat 6 Nov to 22:29 on Sun 7 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-11-07", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24427, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-11-06T19:44:01+08:00", "utc": "1937-11-06T11:44:01Z", "ms": -1014639359464.9072 }, "end": { "local": "1937-11-07T22:28:40+08:00", "utc": "1937-11-07T14:28:40Z", "ms": -1014543079621.6318 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-06T19:44:01+08:00", "utc": "1937-11-06T11:44:01Z", "ms": -1014639359464.9072 }, "end": { "local": "1937-11-07T22:28:40+08:00", "utc": "1937-11-07T14:28:40Z", "ms": -1014543079621.6318 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-06", "window": { "start": { "local": "1937-11-06T12:08:54+08:00", "utc": "1937-11-06T04:08:54Z", "ms": -1014666666479.1626 }, "end": { "local": "1937-11-06T12:56:54+08:00", "utc": "1937-11-06T04:56:54Z", "ms": -1014663786479.1626 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-07", "window": { "start": { "local": "1937-11-07T12:08:56+08:00", "utc": "1937-11-07T04:08:56Z", "ms": -1014580263634.3267 }, "end": { "local": "1937-11-07T12:56:56+08:00", "utc": "1937-11-07T04:56:56Z", "ms": -1014577383634.3267 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:44 on Sat 6 Nov to 22:29 on Sun 7 Nov.", "fact": "1937-11-06T11:44:01Z → 1937-11-07T14:28:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 6th, 12:09–12:57 on the 7th.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24427 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1937: Sunday 7 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": "1937-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-07", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1937 falls on Sunday 7 November. Caturthī runs from 19:44 on Sat 6 Nov to 22:29 on Sun 7 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-11-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31881, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-11-09T01:04:01+08:00", "utc": "1937-11-08T17:04:01Z", "ms": -1014447359247.312 }, "end": { "local": "1937-11-10T03:17:48+08:00", "utc": "1937-11-09T19:17:48Z", "ms": -1014352931562.9966 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-09T01:04:01+08:00", "utc": "1937-11-08T17:04:01Z", "ms": -1014447359247.312 }, "end": { "local": "1937-11-10T03:17:48+08:00", "utc": "1937-11-09T19:17:48Z", "ms": -1014352931562.9966 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-09", "window": { "start": { "local": "1937-11-09T12:09:05+08:00", "utc": "1937-11-09T04:09:05Z", "ms": -1014407455452.8784 }, "end": { "local": "1937-11-09T12:57:05+08:00", "utc": "1937-11-09T04:57:05Z", "ms": -1014404575452.8784 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-11-10", "window": { "start": { "local": "1937-11-10T12:09:10+08:00", "utc": "1937-11-10T04:09:10Z", "ms": -1014321050113.0583 }, "end": { "local": "1937-11-10T12:57:10+08:00", "utc": "1937-11-10T04:57:10Z", "ms": -1014318170113.0583 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 01:04 on Tue 9 Nov to 03:18 on Wed 10 Nov.", "fact": "1937-11-08T17:04:01Z → 1937-11-09T19:17:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 9th, 12:09–12:57 on the 10th.", "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 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31881 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Qingyang, 1937: Tuesday 9 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": "1937-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-09", "confidence": "determinate" } ], "quote": "In Qingyang, Sūrya Ṣaṣṭhī (Chhath) 1937 falls on Tuesday 9 November. Ṣaṣṭhī runs from 01:04 on Tue 9 Nov to 03:18 on Wed 10 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22371, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1937-11-11T04:58:26+08:00", "utc": "1937-11-10T20:58:26Z", "ms": -1014260493824.1877 }, "end": { "local": "1937-11-12T05:56:32+08:00", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-11T04:58:26+08:00", "utc": "1937-11-10T20:58:26Z", "ms": -1014260493824.1877 }, "end": { "local": "1937-11-12T05:56:32+08:00", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-11", "window": { "start": { "local": "1937-11-11T12:09:16+08:00", "utc": "1937-11-11T04:09:16Z", "ms": -1014234643939.1978 }, "end": { "local": "1937-11-11T12:57:16+08:00", "utc": "1937-11-11T04:57:16Z", "ms": -1014231763939.1978 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-11-12", "window": { "start": { "local": "1937-11-12T12:09:23+08:00", "utc": "1937-11-12T04:09:23Z", "ms": -1014148236930.853 }, "end": { "local": "1937-11-12T12:57:23+08:00", "utc": "1937-11-12T04:57:23Z", "ms": -1014145356930.853 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:58 on Thu 11 Nov to 05:57 on Fri 12 Nov.", "fact": "1937-11-10T20:58:26Z → 1937-11-11T21:56:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 11th, 12:09–12:57 on the 12th.", "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 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22371 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Qingyang, 1937: Thursday 11 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": "1937-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-11", "confidence": "determinate" } ], "quote": "In Qingyang, Gopāṣṭamī 1937 falls on Thursday 11 November. Aṣṭamī runs from 04:58 on Thu 11 Nov to 05:57 on Fri 12 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4599, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1937-11-12T05:56:32+08:00", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 }, "end": { "local": "1937-11-13T06:06:14+08:00", "utc": "1937-11-12T22:06:14Z", "ms": -1014083626393.3188 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-12T05:56:32+08:00", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 }, "end": { "local": "1937-11-13T06:06:14+08:00", "utc": "1937-11-12T22:06:14Z", "ms": -1014083626393.3188 } }, "kaala": "purvahna", "days": [ { "local_date": "1937-11-12", "window": { "start": { "local": "1937-11-12T07:21:53+08:00", "utc": "1937-11-11T23:21:53Z", "ms": -1014165487232.508 }, "end": { "local": "1937-11-12T10:49:33+08:00", "utc": "1937-11-12T02:49:33Z", "ms": -1014153027031.4047 } }, "covered_min": 208, "window_min": 208, "qualifies": true }, { "local_date": "1937-11-13", "window": { "start": { "local": "1937-11-13T07:22:53+08:00", "utc": "1937-11-12T23:22:53Z", "ms": -1014079027245.8153 }, "end": { "local": "1937-11-13T10:49:58+08:00", "utc": "1937-11-13T02:49:58Z", "ms": -1014066601807.2009 } }, "covered_min": 0, "window_min": 207, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 05:57 on Fri 12 Nov to 06:06 on Sat 13 Nov.", "fact": "1937-11-11T21:56:32Z → 1937-11-12T22:06:14Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:22–10:50 on the 12th, 07:23–10:50 on the 13th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 208 of 208 minutes on the 12th and 0 of 207 on the 13th.", "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 4599 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Qingyang, 1937: Friday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-12", "confidence": "determinate" } ], "quote": "In Qingyang, Akṣaya Navamī (Amla Navami) 1937 falls on Friday 12 November. Navamī runs from 05:57 on Fri 12 Nov to 06:06 on Sat 13 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21797, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1937-11-12T05:56:32+08:00", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 }, "end": { "local": "1937-11-13T06:06:14+08:00", "utc": "1937-11-12T22:06:14Z", "ms": -1014083626393.3188 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-12T05:56:32+08:00", "utc": "1937-11-11T21:56:32Z", "ms": -1014170607979.0735 }, "end": { "local": "1937-11-13T06:06:14+08:00", "utc": "1937-11-12T22:06:14Z", "ms": -1014083626393.3188 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-12", "window": { "start": { "local": "1937-11-12T12:09:23+08:00", "utc": "1937-11-12T04:09:23Z", "ms": -1014148236930.853 }, "end": { "local": "1937-11-12T12:57:23+08:00", "utc": "1937-11-12T04:57:23Z", "ms": -1014145356930.853 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-11-13", "window": { "start": { "local": "1937-11-13T12:09:31+08:00", "utc": "1937-11-13T04:09:31Z", "ms": -1014061829087.8938 }, "end": { "local": "1937-11-13T12:57:31+08:00", "utc": "1937-11-13T04:57:31Z", "ms": -1014058949087.8938 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 05:57 on Fri 12 Nov to 06:06 on Sat 13 Nov.", "fact": "1937-11-11T21:56:32Z → 1937-11-12T22:06:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 12th, 12:10–12:58 on the 13th.", "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 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21797 s" }, { "step": "ruling", "text": "Durgā Navamī, Qingyang, 1937: Friday 12 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": "1937-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-12", "confidence": "determinate" } ], "quote": "In Qingyang, Durgā Navamī 1937 falls on Friday 12 November. Navamī runs from 05:57 on Fri 12 Nov to 06:06 on Sat 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-11-14", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7094, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-11-14T05:25:39+08:00", "utc": "1937-11-13T21:25:39Z", "ms": -1013999660774.3124 }, "end": { "local": "1937-11-15T03:56:46+08:00", "utc": "1937-11-14T19:56:46Z", "ms": -1013918593947.9454 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-14T05:25:39+08:00", "utc": "1937-11-13T21:25:39Z", "ms": -1013999660774.3124 }, "end": { "local": "1937-11-15T03:56:46+08:00", "utc": "1937-11-14T19:56:46Z", "ms": -1013918593947.9454 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-11-14", "window": { "start": { "local": "1937-11-14T07:23:53+08:00", "utc": "1937-11-13T23:23:53Z", "ms": -1013992567232.6143 }, "end": { "local": "1937-11-14T07:23:53+08:00", "utc": "1937-11-13T23:23:53Z", "ms": -1013992567232.6143 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-11-15", "window": { "start": { "local": "1937-11-15T07:24:53+08:00", "utc": "1937-11-14T23:24:53Z", "ms": -1013906107220.9376 }, "end": { "local": "1937-11-15T07:24:53+08:00", "utc": "1937-11-14T23:24:53Z", "ms": -1013906107220.9376 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:26 on Sun 14 Nov to 03:57 on Mon 15 Nov.", "fact": "1937-11-13T21:25:39Z → 1937-11-14T19:56:46Z" }, { "step": "kaala", "text": "Sunrise is at 07:24 on the 14th and 07:25 on the 15th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 14th and is not on the 15th.", "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 7094 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Qingyang, 1937: Sunday 14 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": "1937-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-14", "confidence": "determinate" } ], "quote": "In Qingyang, Prabodhinī Ekādaśī 1937 falls on Sunday 14 November. Ekādaśī runs from 05:26 on Sun 14 Nov to 03:57 on Mon 15 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-11-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-11-16", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12279, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-11-16T01:44:40+08:00", "utc": "1937-11-15T17:44:40Z", "ms": -1013840120297.2235 }, "end": { "local": "1937-11-16T22:56:43+08:00", "utc": "1937-11-16T14:56:43Z", "ms": -1013763797101.9294 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-16T01:44:40+08:00", "utc": "1937-11-15T17:44:40Z", "ms": -1013840120297.2235 }, "end": { "local": "1937-11-16T22:56:43+08:00", "utc": "1937-11-16T14:56:43Z", "ms": -1013763797101.9294 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-11-15", "window": { "start": { "local": "1937-11-15T17:42:45+08:00", "utc": "1937-11-15T09:42:45Z", "ms": -1013869034575.6652 }, "end": { "local": "1937-11-15T19:32:30+08:00", "utc": "1937-11-15T11:32:30Z", "ms": -1013862449597.4038 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "1937-11-16", "window": { "start": { "local": "1937-11-16T17:42:06+08:00", "utc": "1937-11-16T09:42:06Z", "ms": -1013782673864.5969 }, "end": { "local": "1937-11-16T19:32:04+08:00", "utc": "1937-11-16T11:32:04Z", "ms": -1013776075657.7384 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:45 on Tue 16 Nov to 22:57 on Tue 16 Nov.", "fact": "1937-11-15T17:44:40Z → 1937-11-16T14:56:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:43–19:33 on the 15th, 17:42–19:32 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 110 minutes on the 15th and 110 of 110 on the 16th.", "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 12279 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Tuesday 16 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": "1937-11-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-16", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Tuesday 16 November. Trayodaśī runs from 01:45 on Tue 16 Nov to 22:57 on Tue 16 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-11-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16134, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-11-17T19:41:47+08:00", "utc": "1937-11-17T11:41:47Z", "ms": -1013689093357.2233 }, "end": { "local": "1937-11-18T16:09:30+08:00", "utc": "1937-11-18T08:09:30Z", "ms": -1013615429534.1174 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-17T19:41:47+08:00", "utc": "1937-11-17T11:41:47Z", "ms": -1013689093357.2233 }, "end": { "local": "1937-11-18T16:09:30+08:00", "utc": "1937-11-18T08:09:30Z", "ms": -1013615429534.1174 } }, "kaala": "nishita", "days": [ { "local_date": "1937-11-17", "window": { "start": { "local": "1937-11-18T00:10:41+08:00", "utc": "1937-11-17T16:10:41Z", "ms": -1013672959450.1577 }, "end": { "local": "1937-11-18T00:58:41+08:00", "utc": "1937-11-17T16:58:41Z", "ms": -1013670079450.1577 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-11-18", "window": { "start": { "local": "1937-11-19T00:10:53+08:00", "utc": "1937-11-18T16:10:53Z", "ms": -1013586547490.3511 }, "end": { "local": "1937-11-19T00:58:53+08:00", "utc": "1937-11-18T16:58:53Z", "ms": -1013583667490.3511 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:42 on Wed 17 Nov to 16:10 on Thu 18 Nov.", "fact": "1937-11-17T11:41:47Z → 1937-11-18T08:09:30Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:11–00:59 on the 17th, 00:11–00:59 on the 18th.", "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 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16134 s" }, { "step": "ruling", "text": "Rāsayātrā, Qingyang, 1937: Wednesday 17 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": "1937-11-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-17", "confidence": "determinate" } ], "quote": "In Qingyang, Rāsayātrā 1937 falls on Wednesday 17 November. Pūrṇimā runs from 19:42 on Wed 17 Nov to 16:10 on Thu 18 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11468, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-11-17T19:41:47+08:00", "utc": "1937-11-17T11:41:47Z", "ms": -1013689093357.2233 }, "end": { "local": "1937-11-18T16:09:30+08:00", "utc": "1937-11-18T08:09:30Z", "ms": -1013615429534.1174 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1937-11-17T19:41:47+08:00", "utc": "1937-11-17T11:41:47Z", "ms": -1013689093357.2233 }, "end": { "local": "1937-11-18T16:09:30+08:00", "utc": "1937-11-18T08:09:30Z", "ms": -1013615429534.1174 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-11-17", "window": { "start": { "local": "1937-11-17T12:10:11+08:00", "utc": "1937-11-17T04:10:11Z", "ms": -1013716189370.187 }, "end": { "local": "1937-11-17T12:58:11+08:00", "utc": "1937-11-17T04:58:11Z", "ms": -1013713309370.187 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-11-18", "window": { "start": { "local": "1937-11-18T12:10:23+08:00", "utc": "1937-11-18T04:10:23Z", "ms": -1013629777353.6746 }, "end": { "local": "1937-11-18T12:58:23+08:00", "utc": "1937-11-18T04:58:23Z", "ms": -1013626897353.6746 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:42 on Wed 17 Nov to 16:10 on Thu 18 Nov.", "fact": "1937-11-17T11:41:47Z → 1937-11-18T08:09:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 17th, 12:10–12:58 on the 18th.", "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 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11468 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Qingyang, 1937: Thursday 18 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": "1937-11-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-18", "confidence": "determinate" } ], "quote": "In Qingyang, Kārtikī Pūrṇimā 1937 falls on Thursday 18 November. Pūrṇimā runs from 19:42 on Wed 17 Nov to 16:10 on Thu 18 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-11-21", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19999, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-11-21T05:27:48+08:00", "utc": "1937-11-20T21:27:48Z", "ms": -1013394731930.7666 }, "end": { "local": "1937-11-22T02:23:46+08:00", "utc": "1937-11-21T18:23:46Z", "ms": -1013319373949.0803 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-11-21T05:27:48+08:00", "utc": "1937-11-20T21:27:48Z", "ms": -1013394731930.7666 }, "end": { "local": "1937-11-22T02:23:46+08:00", "utc": "1937-11-21T18:23:46Z", "ms": -1013319373949.0803 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-11-20", "window": { "start": { "local": "1937-11-20T19:42:01+08:00", "utc": "1937-11-20T11:42:01Z", "ms": -1013429878918.614 }, "end": { "local": "1937-11-20T19:42:01+08:00", "utc": "1937-11-20T11:42:01Z", "ms": -1013429878918.614 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-11-21", "window": { "start": { "local": "1937-11-21T20:50:27+08:00", "utc": "1937-11-21T12:50:27Z", "ms": -1013339373317.4623 }, "end": { "local": "1937-11-21T20:50:27+08:00", "utc": "1937-11-21T12:50:27Z", "ms": -1013339373317.4623 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:28 on Sun 21 Nov to 02:24 on Mon 22 Nov.", "fact": "1937-11-20T21:27:48Z → 1937-11-21T18:23:46Z" }, { "step": "kaala", "text": "Moonrise is at 19:42 on the 20th and 20:50 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 20th and is on the 21st.", "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 19999 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Sunday 21 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": "1937-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-21", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Sunday 21 November. Caturthī runs from 05:28 on Sun 21 Nov to 02:24 on Mon 22 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-11-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-11-28", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34800, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-11-27T20:38:57+08:00", "utc": "1937-11-27T12:38:57Z", "ms": -1012821662677.1661 }, "end": { "local": "1937-11-28T21:58:35+08:00", "utc": "1937-11-28T13:58:35Z", "ms": -1012730484514.0297 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-11-27T20:38:57+08:00", "utc": "1937-11-27T12:38:57Z", "ms": -1012821662677.1661 }, "end": { "local": "1937-11-28T21:58:35+08:00", "utc": "1937-11-28T13:58:35Z", "ms": -1012730484514.0297 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-11-28", "window": { "start": { "local": "1937-11-28T07:37:39+08:00", "utc": "1937-11-27T23:37:39Z", "ms": -1012782140994.6069 }, "end": { "local": "1937-11-28T07:37:39+08:00", "utc": "1937-11-27T23:37:39Z", "ms": -1012782140994.6069 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-11-29", "window": { "start": { "local": "1937-11-29T07:38:36+08:00", "utc": "1937-11-28T23:38:36Z", "ms": -1012695684420.2601 }, "end": { "local": "1937-11-29T07:38:36+08:00", "utc": "1937-11-28T23:38:36Z", "ms": -1012695684420.2601 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:39 on Sat 27 Nov to 21:59 on Sun 28 Nov.", "fact": "1937-11-27T12:38:57Z → 1937-11-28T13:58:35Z" }, { "step": "kaala", "text": "Sunrise is at 07:38 on the 28th and 07:39 on the 29th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 28th and is not on the 29th.", "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 34800 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Qingyang, 1937: Sunday 28 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": "1937-11-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-28", "confidence": "determinate" } ], "quote": "In Qingyang, Utpannā Ekādaśī 1937 falls on Sunday 28 November. Ekādaśī runs from 20:39 on Sat 27 Nov to 21:59 on Sun 28 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-11-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-11-30", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-11-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15554, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-11-29T23:48:01+08:00", "utc": "1937-11-29T15:48:01Z", "ms": -1012637518558.8527 }, "end": { "local": "1937-12-01T02:00:52+08:00", "utc": "1937-11-30T18:00:52Z", "ms": -1012543148396.7985 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-11-29T23:48:01+08:00", "utc": "1937-11-29T15:48:01Z", "ms": -1012637518558.8527 }, "end": { "local": "1937-12-01T02:00:52+08:00", "utc": "1937-11-30T18:00:52Z", "ms": -1012543148396.7985 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-11-29", "window": { "start": { "local": "1937-11-29T17:36:22+08:00", "utc": "1937-11-29T09:36:22Z", "ms": -1012659818060.5571 }, "end": { "local": "1937-11-29T19:28:47+08:00", "utc": "1937-11-29T11:28:47Z", "ms": -1012653072773.4994 } }, "covered_min": 0, "window_min": 112, "qualifies": false }, { "local_date": "1937-11-30", "window": { "start": { "local": "1937-11-30T17:36:09+08:00", "utc": "1937-11-30T09:36:09Z", "ms": -1012573431012.417 }, "end": { "local": "1937-11-30T19:28:43+08:00", "utc": "1937-11-30T11:28:43Z", "ms": -1012566676611.725 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:48 on Mon 29 Nov to 02:01 on Wed 1 Dec.", "fact": "1937-11-29T15:48:01Z → 1937-11-30T18:00:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:36–19:29 on the 29th, 17:36–19:29 on the 30th.", "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 112 minutes on the 29th and 113 of 113 on the 30th.", "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 15554 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Tuesday 30 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": "1937-11-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-11-30", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Tuesday 30 November. Trayodaśī runs from 23:48 on Mon 29 Nov to 02:01 on Wed 1 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-11-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-12-01", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3514, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-12-01T02:00:52+08:00", "utc": "1937-11-30T18:00:52Z", "ms": -1012543148396.7985 }, "end": { "local": "1937-12-02T04:30:33+08:00", "utc": "1937-12-01T20:30:33Z", "ms": -1012447766962.8444 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-01T02:00:52+08:00", "utc": "1937-11-30T18:00:52Z", "ms": -1012543148396.7985 }, "end": { "local": "1937-12-02T04:30:33+08:00", "utc": "1937-12-01T20:30:33Z", "ms": -1012447766962.8444 } }, "kaala": "nishita", "days": [ { "local_date": "1937-11-30", "window": { "start": { "local": "1937-12-01T00:14:18+08:00", "utc": "1937-11-30T16:14:18Z", "ms": -1012549542009.822 }, "end": { "local": "1937-12-01T01:02:18+08:00", "utc": "1937-11-30T17:02:18Z", "ms": -1012546662009.822 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-01", "window": { "start": { "local": "1937-12-02T00:14:40+08:00", "utc": "1937-12-01T16:14:40Z", "ms": -1012463120121.7086 }, "end": { "local": "1937-12-02T01:02:40+08:00", "utc": "1937-12-01T17:02:40Z", "ms": -1012460240121.7086 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:01 on Wed 1 Dec to 04:31 on Thu 2 Dec.", "fact": "1937-11-30T18:00:52Z → 1937-12-01T20:30:33Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:14–01:02 on the 30th, 00:15–01:03 on the 1st.", "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 30th and 48 of 48 on the 1st.", "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 3514 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Wednesday 1 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": "1937-12-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-01", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Wednesday 1 December. Caturdaśī runs from 02:01 on Wed 1 Dec to 04:31 on Thu 2 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-12-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-12-07", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7448, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-12-06T15:08:21+08:00", "utc": "1937-12-06T07:08:21Z", "ms": -1012063898972.4022 }, "end": { "local": "1937-12-07T17:23:15+08:00", "utc": "1937-12-07T09:23:15Z", "ms": -1011969404850.371 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-06T15:08:21+08:00", "utc": "1937-12-06T07:08:21Z", "ms": -1012063898972.4022 }, "end": { "local": "1937-12-07T17:23:15+08:00", "utc": "1937-12-07T09:23:15Z", "ms": -1011969404850.371 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-06", "window": { "start": { "local": "1937-12-06T12:16:13+08:00", "utc": "1937-12-06T04:16:13Z", "ms": -1012074226926.4572 }, "end": { "local": "1937-12-06T13:04:13+08:00", "utc": "1937-12-06T05:04:13Z", "ms": -1012071346926.4572 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-07", "window": { "start": { "local": "1937-12-07T12:16:39+08:00", "utc": "1937-12-07T04:16:39Z", "ms": -1011987801111.6082 }, "end": { "local": "1937-12-07T13:04:39+08:00", "utc": "1937-12-07T05:04:39Z", "ms": -1011984921111.6082 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:08 on Mon 6 Dec to 17:23 on Tue 7 Dec.", "fact": "1937-12-06T07:08:21Z → 1937-12-07T09:23:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:16–13:04 on the 6th, 12:17–13:05 on the 7th.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7448 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1937: Tuesday 7 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": "1937-12-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-07", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1937 falls on Tuesday 7 December. Caturthī runs from 15:08 on Mon 6 Dec to 17:23 on Tue 7 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/vinayaka-chaturthi?on=1937-12-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15516, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1937-12-07T17:23:15+08:00", "utc": "1937-12-07T09:23:15Z", "ms": -1011969404850.371 }, "end": { "local": "1937-12-08T19:13:12+08:00", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-07T17:23:15+08:00", "utc": "1937-12-07T09:23:15Z", "ms": -1011969404850.371 }, "end": { "local": "1937-12-08T19:13:12+08:00", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-07", "window": { "start": { "local": "1937-12-07T12:16:39+08:00", "utc": "1937-12-07T04:16:39Z", "ms": -1011987801111.6082 }, "end": { "local": "1937-12-07T13:04:39+08:00", "utc": "1937-12-07T05:04:39Z", "ms": -1011984921111.6082 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-08", "window": { "start": { "local": "1937-12-08T12:17:05+08:00", "utc": "1937-12-08T04:17:05Z", "ms": -1011901374796.8862 }, "end": { "local": "1937-12-08T13:05:05+08:00", "utc": "1937-12-08T05:05:05Z", "ms": -1011898494796.8862 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 17:23 on Tue 7 Dec to 19:13 on Wed 8 Dec.", "fact": "1937-12-07T09:23:15Z → 1937-12-08T11:13:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:17–13:05 on the 7th, 12:17–13:05 on the 8th.", "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 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15516 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Qingyang, 1937: Wednesday 8 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": "1937-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-08", "confidence": "determinate" } ], "quote": "In Qingyang, Nāga Pañcamī (Mārgaśīrṣa) 1937 falls on Wednesday 8 December. Pañcamī runs from 17:23 on Tue 7 Dec to 19:13 on Wed 8 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22087, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-12-08T19:13:12+08:00", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 }, "end": { "local": "1937-12-09T20:30:40+08:00", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-08T19:13:12+08:00", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 }, "end": { "local": "1937-12-09T20:30:40+08:00", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-08", "window": { "start": { "local": "1937-12-08T12:17:05+08:00", "utc": "1937-12-08T04:17:05Z", "ms": -1011901374796.8862 }, "end": { "local": "1937-12-08T13:05:05+08:00", "utc": "1937-12-08T05:05:05Z", "ms": -1011898494796.8862 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-09", "window": { "start": { "local": "1937-12-09T12:17:32+08:00", "utc": "1937-12-09T04:17:32Z", "ms": -1011814948012.4749 }, "end": { "local": "1937-12-09T13:05:32+08:00", "utc": "1937-12-09T05:05:32Z", "ms": -1011812068012.4749 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 19:13 on Wed 8 Dec to 20:31 on Thu 9 Dec.", "fact": "1937-12-08T11:13:12Z → 1937-12-09T12:30:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:17–13:05 on the 8th, 12:18–13:06 on the 9th.", "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 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 22087 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Qingyang, 1937: Thursday 9 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": "1937-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-09", "confidence": "determinate" } ], "quote": "In Qingyang, Campā Ṣaṣṭhī 1937 falls on Thursday 9 December. Ṣaṣṭhī runs from 19:13 on Wed 8 Dec to 20:31 on Thu 9 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22087, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1937-12-08T19:13:12+08:00", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 }, "end": { "local": "1937-12-09T20:30:40+08:00", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-08T19:13:12+08:00", "utc": "1937-12-08T11:13:12Z", "ms": -1011876407725.3206 }, "end": { "local": "1937-12-09T20:30:40+08:00", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-08", "window": { "start": { "local": "1937-12-08T12:17:05+08:00", "utc": "1937-12-08T04:17:05Z", "ms": -1011901374796.8862 }, "end": { "local": "1937-12-08T13:05:05+08:00", "utc": "1937-12-08T05:05:05Z", "ms": -1011898494796.8862 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-09", "window": { "start": { "local": "1937-12-09T12:17:32+08:00", "utc": "1937-12-09T04:17:32Z", "ms": -1011814948012.4749 }, "end": { "local": "1937-12-09T13:05:32+08:00", "utc": "1937-12-09T05:05:32Z", "ms": -1011812068012.4749 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 19:13 on Wed 8 Dec to 20:31 on Thu 9 Dec.", "fact": "1937-12-08T11:13:12Z → 1937-12-09T12:30:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:17–13:05 on the 8th, 12:18–13:06 on the 9th.", "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 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: purvaviddha → only-day · margin 22087 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Qingyang, 1937: Thursday 9 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": "1937-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-09", "confidence": "determinate" } ], "quote": "In Qingyang, Skanda Ṣaṣṭhī 1937 falls on Thursday 9 December. Ṣaṣṭhī runs from 19:13 on Wed 8 Dec to 20:31 on Thu 9 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26708, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1937-12-09T20:30:40+08:00", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 }, "end": { "local": "1937-12-10T21:09:12+08:00", "utc": "1937-12-10T13:09:12Z", "ms": -1011696647576.8757 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-09T20:30:40+08:00", "utc": "1937-12-09T12:30:40Z", "ms": -1011785360233.6356 }, "end": { "local": "1937-12-10T21:09:12+08:00", "utc": "1937-12-10T13:09:12Z", "ms": -1011696647576.8757 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-09", "window": { "start": { "local": "1937-12-09T12:17:32+08:00", "utc": "1937-12-09T04:17:32Z", "ms": -1011814948012.4749 }, "end": { "local": "1937-12-09T13:05:32+08:00", "utc": "1937-12-09T05:05:32Z", "ms": -1011812068012.4749 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-10", "window": { "start": { "local": "1937-12-10T12:17:59+08:00", "utc": "1937-12-10T04:17:59Z", "ms": -1011728520788.949 }, "end": { "local": "1937-12-10T13:05:59+08:00", "utc": "1937-12-10T05:05:59Z", "ms": -1011725640788.949 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 20:31 on Thu 9 Dec to 21:09 on Fri 10 Dec.", "fact": "1937-12-09T12:30:40Z → 1937-12-10T13:09:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:18–13:06 on the 9th, 12:18–13:06 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26708 s" }, { "step": "ruling", "text": "Mitra Saptamī, Qingyang, 1937: Friday 10 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": "1937-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-10", "confidence": "determinate" } ], "quote": "In Qingyang, Mitra Saptamī 1937 falls on Friday 10 December. Saptamī runs from 20:31 on Thu 9 Dec to 21:09 on Fri 10 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/ekadashi?on=1937-12-14", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30785, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-12-13T18:39:41+08:00", "utc": "1937-12-13T10:39:41Z", "ms": -1011446418957.3805 }, "end": { "local": "1937-12-14T16:24:12+08:00", "utc": "1937-12-14T08:24:12Z", "ms": -1011368147588.0621 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-13T18:39:41+08:00", "utc": "1937-12-13T10:39:41Z", "ms": -1011446418957.3805 }, "end": { "local": "1937-12-14T16:24:12+08:00", "utc": "1937-12-14T08:24:12Z", "ms": -1011368147588.0621 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-12-13", "window": { "start": { "local": "1937-12-13T07:50:25+08:00", "utc": "1937-12-12T23:50:25Z", "ms": -1011485374950.6508 }, "end": { "local": "1937-12-13T07:50:25+08:00", "utc": "1937-12-12T23:50:25Z", "ms": -1011485374950.6508 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-12-14", "window": { "start": { "local": "1937-12-14T07:51:08+08:00", "utc": "1937-12-13T23:51:08Z", "ms": -1011398932233.5209 }, "end": { "local": "1937-12-14T07:51:08+08:00", "utc": "1937-12-13T23:51:08Z", "ms": -1011398932233.5209 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:40 on Mon 13 Dec to 16:24 on Tue 14 Dec.", "fact": "1937-12-13T10:39:41Z → 1937-12-14T08:24:12Z" }, { "step": "kaala", "text": "Sunrise is at 07:50 on the 13th and 07:51 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 13th and is on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30785 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Qingyang, 1937: Tuesday 14 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": "1937-12-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-14", "confidence": "determinate" } ], "quote": "In Qingyang, Mokṣadā Ekādaśī 1937 falls on Tuesday 14 December. Ekādaśī runs from 18:40 on Mon 13 Dec to 16:24 on Tue 14 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-12-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1514, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1937-12-14T16:24:12+08:00", "utc": "1937-12-14T08:24:12Z", "ms": -1011368147588.0621 }, "end": { "local": "1937-12-15T13:33:35+08:00", "utc": "1937-12-15T05:33:35Z", "ms": -1011291984991.317 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-14T16:24:12+08:00", "utc": "1937-12-14T08:24:12Z", "ms": -1011368147588.0621 }, "end": { "local": "1937-12-15T13:33:35+08:00", "utc": "1937-12-15T05:33:35Z", "ms": -1011291984991.317 } }, "kaala": "madhyahna", "days": [ { "local_date": "1937-12-14", "window": { "start": { "local": "1937-12-14T12:19:52+08:00", "utc": "1937-12-14T04:19:52Z", "ms": -1011382808118.9004 }, "end": { "local": "1937-12-14T13:07:52+08:00", "utc": "1937-12-14T05:07:52Z", "ms": -1011379928118.9004 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1937-12-15", "window": { "start": { "local": "1937-12-15T12:20:21+08:00", "utc": "1937-12-15T04:20:21Z", "ms": -1011296379159.06 }, "end": { "local": "1937-12-15T13:08:21+08:00", "utc": "1937-12-15T05:08:21Z", "ms": -1011293499159.06 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 16:24 on Tue 14 Dec to 13:34 on Wed 15 Dec.", "fact": "1937-12-14T08:24:12Z → 1937-12-15T05:33:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 14th, 12:20–13:08 on the 15th.", "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 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1514 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Qingyang, 1937: Wednesday 15 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": "1937-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-15", "confidence": "determinate" } ], "quote": "In Qingyang, Akhaṇḍa Dvādaśī 1937 falls on Wednesday 15 December. Dvādaśī runs from 16:24 on Tue 14 Dec to 13:34 on Wed 15 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/pradosha-vrata?on=1937-12-15", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14598, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-12-15T13:33:35+08:00", "utc": "1937-12-15T05:33:35Z", "ms": -1011291984991.317 }, "end": { "local": "1937-12-16T10:15:22+08:00", "utc": "1937-12-16T02:15:22Z", "ms": -1011217478228.4559 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-15T13:33:35+08:00", "utc": "1937-12-15T05:33:35Z", "ms": -1011291984991.317 }, "end": { "local": "1937-12-16T10:15:22+08:00", "utc": "1937-12-16T02:15:22Z", "ms": -1011217478228.4559 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-12-15", "window": { "start": { "local": "1937-12-15T17:36:53+08:00", "utc": "1937-12-15T09:36:53Z", "ms": -1011277387483.4851 }, "end": { "local": "1937-12-15T19:30:57+08:00", "utc": "1937-12-15T11:30:57Z", "ms": -1011270542591.6757 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "1937-12-16", "window": { "start": { "local": "1937-12-16T17:37:11+08:00", "utc": "1937-12-16T09:37:11Z", "ms": -1011190969086.9081 }, "end": { "local": "1937-12-16T19:31:19+08:00", "utc": "1937-12-16T11:31:19Z", "ms": -1011184121495.748 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:34 on Wed 15 Dec to 10:15 on Thu 16 Dec.", "fact": "1937-12-15T05:33:35Z → 1937-12-16T02:15:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:37–19:31 on the 15th, 17:37–19:31 on the 16th.", "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 15th and 0 of 114 on the 16th.", "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 14598 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1937: Wednesday 15 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": "1937-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-15", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1937 falls on Wednesday 15 December. Trayodaśī runs from 13:34 on Wed 15 Dec to 10:15 on Thu 16 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-12-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26443, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1937-12-17T06:38:24+08:00", "utc": "1937-12-16T22:38:24Z", "ms": -1011144096456.4929 }, "end": { "local": "1937-12-18T02:52:24+08:00", "utc": "1937-12-17T18:52:24Z", "ms": -1011071255795.3451 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-17T06:38:24+08:00", "utc": "1937-12-16T22:38:24Z", "ms": -1011144096456.4929 }, "end": { "local": "1937-12-18T02:52:24+08:00", "utc": "1937-12-17T18:52:24Z", "ms": -1011071255795.3451 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-12-16", "window": { "start": { "local": "1937-12-16T17:37:11+08:00", "utc": "1937-12-16T09:37:11Z", "ms": -1011190969086.9081 }, "end": { "local": "1937-12-16T19:31:19+08:00", "utc": "1937-12-16T11:31:19Z", "ms": -1011184121495.748 } }, "covered_min": 0, "window_min": 114, "qualifies": false }, { "local_date": "1937-12-17", "window": { "start": { "local": "1937-12-17T17:37:31+08:00", "utc": "1937-12-17T09:37:31Z", "ms": -1011104548831.8859 }, "end": { "local": "1937-12-17T19:31:41+08:00", "utc": "1937-12-17T11:31:41Z", "ms": -1011097698980.5371 } }, "covered_min": 114, "window_min": 114, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:38 on Fri 17 Dec to 02:52 on Sat 18 Dec.", "fact": "1937-12-16T22:38:24Z → 1937-12-17T18:52:24Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:37–19:31 on the 16th, 17:38–19:32 on the 17th.", "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 114 minutes on the 16th and 114 of 114 on the 17th.", "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 26443 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Qingyang, 1937: Friday 17 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": "1937-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-17", "confidence": "determinate" } ], "quote": "In Qingyang, Dattātreyotpatti (Datta Jayanti) 1937 falls on Friday 17 December. Pūrṇimā runs from 06:38 on Fri 17 Dec to 02:52 on Sat 18 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1937/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": "/qingyang/festivals/1937/sankashta-chaturthi?on=1937-12-20", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15811, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1937-12-20T16:23:40+08:00", "utc": "1937-12-20T08:23:40Z", "ms": -1010849780232.1842 }, "end": { "local": "1937-12-21T13:44:27+08:00", "utc": "1937-12-21T05:44:27Z", "ms": -1010772933025.8446 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-20T16:23:40+08:00", "utc": "1937-12-20T08:23:40Z", "ms": -1010849780232.1842 }, "end": { "local": "1937-12-21T13:44:27+08:00", "utc": "1937-12-21T05:44:27Z", "ms": -1010772933025.8446 } }, "kaala": "moonrise", "days": [ { "local_date": "1937-12-20", "window": { "start": { "local": "1937-12-20T20:47:10+08:00", "utc": "1937-12-20T12:47:10Z", "ms": -1010833969621.4424 }, "end": { "local": "1937-12-20T20:47:10+08:00", "utc": "1937-12-20T12:47:10Z", "ms": -1010833969621.4424 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1937-12-21", "window": { "start": { "local": "1937-12-21T21:55:36+08:00", "utc": "1937-12-21T13:55:36Z", "ms": -1010743463626.5266 }, "end": { "local": "1937-12-21T21:55:36+08:00", "utc": "1937-12-21T13:55:36Z", "ms": -1010743463626.5266 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:24 on Mon 20 Dec to 13:44 on Tue 21 Dec.", "fact": "1937-12-20T08:23:40Z → 1937-12-21T05:44:27Z" }, { "step": "kaala", "text": "Moonrise is at 20:47 on the 20th and 21:56 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 20th and is not on the 21st.", "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 15811 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1937: Monday 20 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1937-12-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-20", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1937 falls on Monday 20 December. Caturthī runs from 16:24 on Mon 20 Dec to 13:44 on Tue 21 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/sankashta-chaturthi?on=1937-12-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/ekadashi?on=1937-12-28", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21109, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1937-12-27T13:49:59+08:00", "utc": "1937-12-27T05:49:59Z", "ms": -1010254201013.2058 }, "end": { "local": "1937-12-28T16:13:06+08:00", "utc": "1937-12-28T08:13:06Z", "ms": -1010159214477.5085 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-27T13:49:59+08:00", "utc": "1937-12-27T05:49:59Z", "ms": -1010254201013.2058 }, "end": { "local": "1937-12-28T16:13:06+08:00", "utc": "1937-12-28T08:13:06Z", "ms": -1010159214477.5085 } }, "kaala": "sunrise", "days": [ { "local_date": "1937-12-27", "window": { "start": { "local": "1937-12-27T07:58:10+08:00", "utc": "1937-12-26T23:58:10Z", "ms": -1010275310471.9823 }, "end": { "local": "1937-12-27T07:58:10+08:00", "utc": "1937-12-26T23:58:10Z", "ms": -1010275310471.9823 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1937-12-28", "window": { "start": { "local": "1937-12-28T07:58:30+08:00", "utc": "1937-12-27T23:58:30Z", "ms": -1010188889513.2429 }, "end": { "local": "1937-12-28T07:58:30+08:00", "utc": "1937-12-27T23:58:30Z", "ms": -1010188889513.2429 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:50 on Mon 27 Dec to 16:13 on Tue 28 Dec.", "fact": "1937-12-27T05:49:59Z → 1937-12-28T08:13:06Z" }, { "step": "kaala", "text": "Sunrise is at 07:58 on the 27th and 07:59 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21109 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Qingyang, 1937: Tuesday 28 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": "1937-12-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-28", "confidence": "determinate" } ], "quote": "In Qingyang, Saphalā Ekādaśī 1937 falls on Tuesday 28 December. Ekādaśī runs from 13:50 on Mon 27 Dec to 16:13 on Tue 28 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1937/ekadashi?on=1937-12-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/pradosha-vrata?on=1937-12-30", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-30", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2658, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1937-12-29T18:53:34+08:00", "utc": "1937-12-29T10:53:34Z", "ms": -1010063185694.5133 }, "end": { "local": "1937-12-30T21:40:28+08:00", "utc": "1937-12-30T13:40:28Z", "ms": -1009966772023.8221 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-29T18:53:34+08:00", "utc": "1937-12-29T10:53:34Z", "ms": -1010063185694.5133 }, "end": { "local": "1937-12-30T21:40:28+08:00", "utc": "1937-12-30T13:40:28Z", "ms": -1009966772023.8221 } }, "kaala": "pradosha", "days": [ { "local_date": "1937-12-29", "window": { "start": { "local": "1937-12-29T17:43:50+08:00", "utc": "1937-12-29T09:43:50Z", "ms": -1010067369575.531 }, "end": { "local": "1937-12-29T19:37:53+08:00", "utc": "1937-12-29T11:37:53Z", "ms": -1010060527366.6342 } }, "covered_min": 44, "window_min": 114, "qualifies": true }, { "local_date": "1937-12-30", "window": { "start": { "local": "1937-12-30T17:44:32+08:00", "utc": "1937-12-30T09:44:32Z", "ms": -1009980927652.0587 }, "end": { "local": "1937-12-30T19:38:31+08:00", "utc": "1937-12-30T11:38:31Z", "ms": -1009974088966.8939 } }, "covered_min": 114, "window_min": 114, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:54 on Wed 29 Dec to 21:40 on Thu 30 Dec.", "fact": "1937-12-29T10:53:34Z → 1937-12-30T13:40:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:44–19:38 on the 29th, 17:45–19:39 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 44 of 114 minutes on the 29th and 114 of 114 on the 30th.", "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 2658 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1937: Thursday 30 December.", "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": "1937-12-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-30", "confidence": "boundary" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1937 falls on Thursday 30 December. Trayodaśī runs from 18:54 on Wed 29 Dec to 21:40 on Thu 30 Dec and covers all of pradoṣa that evening. It also reaches the previous evening for 44 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1937/pradosha-vrata?on=1937-12-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1937/shivaratri?on=1937-12-30", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1937, "local_date": "1937-12-30", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 241, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1937-12-30T21:40:28+08:00", "utc": "1937-12-30T13:40:28Z", "ms": -1009966772023.8221 }, "end": { "local": "1938-01-01T00:24:25+08:00", "utc": "1937-12-31T16:24:25Z", "ms": -1009870534633.8624 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1937-12-30T21:40:28+08:00", "utc": "1937-12-30T13:40:28Z", "ms": -1009966772023.8221 }, "end": { "local": "1938-01-01T00:24:25+08:00", "utc": "1937-12-31T16:24:25Z", "ms": -1009870534633.8624 } }, "kaala": "nishita", "days": [ { "local_date": "1937-12-30", "window": { "start": { "local": "1937-12-31T00:27:57+08:00", "utc": "1937-12-30T16:27:57Z", "ms": -1009956722582.6907 }, "end": { "local": "1937-12-31T01:15:57+08:00", "utc": "1937-12-30T17:15:57Z", "ms": -1009953842582.6907 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1937-12-31", "window": { "start": { "local": "1938-01-01T00:28:26+08:00", "utc": "1937-12-31T16:28:26Z", "ms": -1009870294114.0416 }, "end": { "local": "1938-01-01T01:16:26+08:00", "utc": "1937-12-31T17:16:26Z", "ms": -1009867414114.0416 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:40 on Thu 30 Dec to 00:24 on Sat 1 Jan.", "fact": "1937-12-30T13:40:28Z → 1937-12-31T16:24:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:28–01:16 on the 30th, 00:28–01:16 on the 31st.", "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 30th and 0 of 48 on the 31st.", "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 241 s < 300 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1937: Thursday 30 December.", "fact": "confidence: boundary (margin)" } ], "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": "1937-12-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1937-12-30", "confidence": "boundary" } ], "quote": "In Qingyang, Śivarātri 1937 falls on Thursday 30 December. Caturdaśī runs from 21:40 on Thu 30 Dec to 00:24 on Sat 1 Jan and covers all of niśītha that night. It is 4 min 01 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1937/shivaratri?on=1937-12-30", "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" } }