{ "id": "/qingyang/festivals/1957", "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": 1957, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-01-05", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14589, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-01-04T17:21:31+08:00", "utc": "1957-01-04T09:21:31Z", "ms": -409934308746.1836 }, "end": { "local": "1957-01-05T19:57:18+08:00", "utc": "1957-01-05T11:57:18Z", "ms": -409838562062.3442 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-01-04T17:21:31+08:00", "utc": "1957-01-04T09:21:31Z", "ms": -409934308746.1836 }, "end": { "local": "1957-01-05T19:57:18+08:00", "utc": "1957-01-05T11:57:18Z", "ms": -409838562062.3442 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-01-04", "window": { "start": { "local": "1957-01-04T12:30:22+08:00", "utc": "1957-01-04T04:30:22Z", "ms": -409951777581.3801 }, "end": { "local": "1957-01-04T13:18:22+08:00", "utc": "1957-01-04T05:18:22Z", "ms": -409948897581.3801 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-01-05", "window": { "start": { "local": "1957-01-05T12:30:50+08:00", "utc": "1957-01-05T04:30:50Z", "ms": -409865350044.0893 }, "end": { "local": "1957-01-05T13:18:50+08:00", "utc": "1957-01-05T05:18:50Z", "ms": -409862470044.0893 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:22 on Fri 4 Jan to 19:57 on Sat 5 Jan.", "fact": "1957-01-04T09:21:31Z → 1957-01-05T11:57:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 4th, 12:31–13:19 on the 5th.", "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 4th and 48 of 48 on the 5th.", "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 14589 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Saturday 5 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": "1957-01-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-05", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Saturday 5 January. Caturthī runs from 17:22 on Fri 4 Jan to 19:57 on Sat 5 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-01-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/ekadashi?on=1957-01-12", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16243, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-01-12T03:29:09+08:00", "utc": "1957-01-11T19:29:09Z", "ms": -409293050826.7519 }, "end": { "local": "1957-01-13T02:10:35+08:00", "utc": "1957-01-12T18:10:35Z", "ms": -409211364921.4943 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-01-12T03:29:09+08:00", "utc": "1957-01-11T19:29:09Z", "ms": -409293050826.7519 }, "end": { "local": "1957-01-13T02:10:35+08:00", "utc": "1957-01-12T18:10:35Z", "ms": -409211364921.4943 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-01-12", "window": { "start": { "local": "1957-01-12T07:59:52+08:00", "utc": "1957-01-11T23:59:52Z", "ms": -409276808129.92554 }, "end": { "local": "1957-01-12T07:59:52+08:00", "utc": "1957-01-11T23:59:52Z", "ms": -409276808129.92554 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-01-13", "window": { "start": { "local": "1957-01-13T07:59:41+08:00", "utc": "1957-01-12T23:59:41Z", "ms": -409190418713.0061 }, "end": { "local": "1957-01-13T07:59:41+08:00", "utc": "1957-01-12T23:59:41Z", "ms": -409190418713.0061 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:29 on Sat 12 Jan to 02:11 on Sun 13 Jan.", "fact": "1957-01-11T19:29:09Z → 1957-01-12T18:10:35Z" }, { "step": "kaala", "text": "Sunrise is at 08:00 on the 12th and 08:00 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16243 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Qingyang, 1957: Saturday 12 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": "1957-01-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-12", "confidence": "determinate" } ], "quote": "In Qingyang, Putradā Ekādaśī 1957 falls on Saturday 12 January. Ekādaśī runs from 03:29 on Sat 12 Jan to 02:11 on Sun 13 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-01-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24502, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 }, "end": { "local": "1957-02-12T13:45:34+08:00", "utc": "1957-02-12T05:45:34Z", "ms": -406577665628.0694 } }, "span": { "of": "transit", "start": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 }, "end": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 } }, "kaala": "sunset-day", "days": [ { "local_date": "1957-01-13", "window": { "start": { "local": "1957-01-12T17:55:45+08:00", "utc": "1957-01-12T09:55:45Z", "ms": -409241054771.04443 }, "end": { "local": "1957-01-13T17:56:42+08:00", "utc": "1957-01-13T09:56:42Z", "ms": -409154597832.03687 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1957-01-14", "window": { "start": { "local": "1957-01-13T17:56:42+08:00", "utc": "1957-01-13T09:56:42Z", "ms": -409154597832.03687 }, "end": { "local": "1957-01-14T17:57:40+08:00", "utc": "1957-01-14T09:57:40Z", "ms": -409068140229.15967 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1957-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 00:45 on Mon 14 Jan.", "fact": "1957-01-13T16:45:04Z · 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 24502 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Monday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Qingyang, 1957: Sunday 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": "1957-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1957-01-13", "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": "1957-01-12", "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 1957 falls on Sunday 13 January. It is kept the day before Pongal, which falls on Monday 14 January. The Sun enters Makara at 00:45 on Mon 14 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 sunrise, as in Orissa, it is 12 January.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24502, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 }, "end": { "local": "1957-02-12T13:45:34+08:00", "utc": "1957-02-12T05:45:34Z", "ms": -406577665628.0694 } }, "span": { "of": "transit", "start": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 }, "end": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 } }, "kaala": "sunset-day", "days": [ { "local_date": "1957-01-13", "window": { "start": { "local": "1957-01-12T17:55:45+08:00", "utc": "1957-01-12T09:55:45Z", "ms": -409241054771.04443 }, "end": { "local": "1957-01-13T17:56:42+08:00", "utc": "1957-01-13T09:56:42Z", "ms": -409154597832.03687 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1957-01-14", "window": { "start": { "local": "1957-01-13T17:56:42+08:00", "utc": "1957-01-13T09:56:42Z", "ms": -409154597832.03687 }, "end": { "local": "1957-01-14T17:57:40+08:00", "utc": "1957-01-14T09:57:40Z", "ms": -409068140229.15967 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 00:45 on Mon 14 Jan.", "fact": "1957-01-13T16:45:04Z · 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 24502 s" }, { "step": "ruling", "text": "Pongal, Qingyang, 1957: Monday 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": "1957-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1957-01-14", "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": "1957-01-13", "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 1957 falls on Monday 14 January. The Sun enters Makara at 00:45 on Mon 14 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 sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2704, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 }, "end": { "local": "1957-02-12T13:45:34+08:00", "utc": "1957-02-12T05:45:34Z", "ms": -406577665628.0694 } }, "span": { "of": "transit", "start": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 }, "end": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 } }, "kaala": "civil-day", "days": [ { "local_date": "1957-01-13", "window": { "start": { "local": "1957-01-13T00:00:00+08:00", "utc": "1957-01-12T16:00:00Z", "ms": -409219200000 }, "end": { "local": "1957-01-14T00:00:00+08:00", "utc": "1957-01-13T16:00:00Z", "ms": -409132800000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "1957-01-14", "window": { "start": { "local": "1957-01-14T00:00:00+08:00", "utc": "1957-01-13T16:00:00Z", "ms": -409132800000 }, "end": { "local": "1957-01-15T00:00:00+08:00", "utc": "1957-01-14T16:00:00Z", "ms": -409046400000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 00:45 on Mon 14 Jan.", "fact": "1957-01-13T16:45:04Z · 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 14th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 2704 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Qingyang, 1957: Monday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "makara-sankranti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "rashi": "Makara", "day_from": "midnight" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1957-01-13", "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": "1957-01-14", "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 1957 falls on Monday 14 January. The Sun enters Makara at 00:45 on Mon 14 Jan, and the rule counts the day from midnight. Counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/pradosha-vrata?on=1957-01-14", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5325, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-01-14T00:04:53+08:00", "utc": "1957-01-13T16:04:53Z", "ms": -409132507140.8987 }, "end": { "local": "1957-01-14T21:18:37+08:00", "utc": "1957-01-14T13:18:37Z", "ms": -409056083002.1432 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-01-14T00:04:53+08:00", "utc": "1957-01-13T16:04:53Z", "ms": -409132507140.8987 }, "end": { "local": "1957-01-14T21:18:37+08:00", "utc": "1957-01-14T13:18:37Z", "ms": -409056083002.1432 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-01-13", "window": { "start": { "local": "1957-01-13T17:56:42+08:00", "utc": "1957-01-13T09:56:42Z", "ms": -409154597832.03687 }, "end": { "local": "1957-01-13T19:49:04+08:00", "utc": "1957-01-13T11:49:04Z", "ms": -409147855621.97784 } }, "covered_min": 0, "window_min": 112, "qualifies": false }, { "local_date": "1957-01-14", "window": { "start": { "local": "1957-01-14T17:57:40+08:00", "utc": "1957-01-14T09:57:40Z", "ms": -409068140229.15967 }, "end": { "local": "1957-01-14T19:49:52+08:00", "utc": "1957-01-14T11:49:52Z", "ms": -409061407631.92847 } }, "covered_min": 112, "window_min": 112, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:05 on Mon 14 Jan to 21:19 on Mon 14 Jan.", "fact": "1957-01-13T16:04:53Z → 1957-01-14T13:18:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:57–19:49 on the 13th, 17:58–19:50 on the 14th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 112 minutes on the 13th and 112 of 112 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5325 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Monday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-14", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Monday 14 January. Trayodaśī runs from 00:05 on Mon 14 Jan to 21:19 on Mon 14 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-01-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24502, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 }, "end": { "local": "1957-02-12T13:45:34+08:00", "utc": "1957-02-12T05:45:34Z", "ms": -406577665628.0694 } }, "span": { "of": "transit", "start": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 }, "end": { "local": "1957-01-14T00:45:04+08:00", "utc": "1957-01-13T16:45:04Z", "ms": -409130095702.39374 } }, "kaala": "sunset-day", "days": [ { "local_date": "1957-01-13", "window": { "start": { "local": "1957-01-12T17:55:45+08:00", "utc": "1957-01-12T09:55:45Z", "ms": -409241054771.04443 }, "end": { "local": "1957-01-13T17:56:42+08:00", "utc": "1957-01-13T09:56:42Z", "ms": -409154597832.03687 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1957-01-14", "window": { "start": { "local": "1957-01-13T17:56:42+08:00", "utc": "1957-01-13T09:56:42Z", "ms": -409154597832.03687 }, "end": { "local": "1957-01-14T17:57:40+08:00", "utc": "1957-01-14T09:57:40Z", "ms": -409068140229.15967 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1957-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 00:45 on Mon 14 Jan.", "fact": "1957-01-13T16:45:04Z · 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 24502 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Monday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Qingyang, 1957: Tuesday 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": "1957-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1957-01-15", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1957-01-14", "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 1957 falls on Tuesday 15 January. It is kept the day after Pongal, which falls on Monday 14 January. The Sun enters Makara at 00:45 on Mon 14 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 sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-01-19", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7345, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-01-19T03:09:14+08:00", "utc": "1957-01-18T19:09:14Z", "ms": -408689445617.3787 }, "end": { "local": "1957-01-19T23:57:43+08:00", "utc": "1957-01-19T15:57:43Z", "ms": -408614536999.9579 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-01-19T03:09:14+08:00", "utc": "1957-01-18T19:09:14Z", "ms": -408689445617.3787 }, "end": { "local": "1957-01-19T23:57:43+08:00", "utc": "1957-01-19T15:57:43Z", "ms": -408614536999.9579 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-01-18", "window": { "start": { "local": "1957-01-18T20:45:05+08:00", "utc": "1957-01-18T12:45:05Z", "ms": -408712495076.99896 }, "end": { "local": "1957-01-18T20:45:05+08:00", "utc": "1957-01-18T12:45:05Z", "ms": -408712495076.99896 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-01-19", "window": { "start": { "local": "1957-01-19T21:55:18+08:00", "utc": "1957-01-19T13:55:18Z", "ms": -408621881598.2843 }, "end": { "local": "1957-01-19T21:55:18+08:00", "utc": "1957-01-19T13:55:18Z", "ms": -408621881598.2843 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:09 on Sat 19 Jan to 23:58 on Sat 19 Jan.", "fact": "1957-01-18T19:09:14Z → 1957-01-19T15:57:43Z" }, { "step": "kaala", "text": "Moonrise is at 20:45 on the 18th and 21:55 on the 19th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 18th and is on the 19th.", "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 7345 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Saturday 19 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": "1957-01-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-19", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Saturday 19 January. Caturthī runs from 03:09 on Sat 19 Jan to 23:58 on Sat 19 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-01-19", "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/1957/ekadashi?on=1957-01-26", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39592, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-01-25T18:54:57+08:00", "utc": "1957-01-25T10:54:57Z", "ms": -408114302804.3263 }, "end": { "local": "1957-01-26T20:24:46+08:00", "utc": "1957-01-26T12:24:46Z", "ms": -408022513962.86725 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-01-25T18:54:57+08:00", "utc": "1957-01-25T10:54:57Z", "ms": -408114302804.3263 }, "end": { "local": "1957-01-26T20:24:46+08:00", "utc": "1957-01-26T12:24:46Z", "ms": -408022513962.86725 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-01-25", "window": { "start": { "local": "1957-01-25T07:55:06+08:00", "utc": "1957-01-24T23:55:06Z", "ms": -408153894384.97943 }, "end": { "local": "1957-01-25T07:55:06+08:00", "utc": "1957-01-24T23:55:06Z", "ms": -408153894384.97943 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-01-26", "window": { "start": { "local": "1957-01-26T07:54:31+08:00", "utc": "1957-01-25T23:54:31Z", "ms": -408067529202.0484 }, "end": { "local": "1957-01-26T07:54:31+08:00", "utc": "1957-01-25T23:54:31Z", "ms": -408067529202.0484 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:55 on Fri 25 Jan to 20:25 on Sat 26 Jan.", "fact": "1957-01-25T10:54:57Z → 1957-01-26T12:24:46Z" }, { "step": "kaala", "text": "Sunrise is at 07:55 on the 25th and 07:55 on the 26th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 25th and is on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 39592 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Qingyang, 1957: Saturday 26 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-26", "confidence": "determinate" } ], "quote": "In Qingyang, Ṣaṭtilā Ekādaśī 1957 falls on Saturday 26 January. Ekādaśī runs from 18:55 on Fri 25 Jan to 20:25 on Sat 26 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-01-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-01-28", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8333, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-01-27T22:19:23+08:00", "utc": "1957-01-27T14:19:23Z", "ms": -407929236604.9008 }, "end": { "local": "1957-01-29T00:31:27+08:00", "utc": "1957-01-28T16:31:27Z", "ms": -407834912841.5096 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-01-27T22:19:23+08:00", "utc": "1957-01-27T14:19:23Z", "ms": -407929236604.9008 }, "end": { "local": "1957-01-29T00:31:27+08:00", "utc": "1957-01-28T16:31:27Z", "ms": -407834912841.5096 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-01-27", "window": { "start": { "local": "1957-01-27T18:10:51+08:00", "utc": "1957-01-27T10:10:51Z", "ms": -407944149417.367 }, "end": { "local": "1957-01-27T20:00:30+08:00", "utc": "1957-01-27T12:00:30Z", "ms": -407937570027.84186 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "1957-01-28", "window": { "start": { "local": "1957-01-28T18:11:53+08:00", "utc": "1957-01-28T10:11:53Z", "ms": -407857686752.28784 }, "end": { "local": "1957-01-28T20:01:19+08:00", "utc": "1957-01-28T12:01:19Z", "ms": -407851121042.38916 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:19 on Sun 27 Jan to 00:31 on Tue 29 Jan.", "fact": "1957-01-27T14:19:23Z → 1957-01-28T16:31:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:11–20:00 on the 27th, 18:12–20:01 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 110 minutes on the 27th and 109 of 109 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8333 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Monday 28 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-01-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-28", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Monday 28 January. Trayodaśī runs from 22:19 on Sun 27 Jan to 00:31 on Tue 29 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-01-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-01-28", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-28", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 408, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-01-29T00:31:27+08:00", "utc": "1957-01-28T16:31:27Z", "ms": -407834912841.5096 }, "end": { "local": "1957-01-30T02:54:48+08:00", "utc": "1957-01-29T18:54:48Z", "ms": -407739912059.41486 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-01-29T00:31:27+08:00", "utc": "1957-01-28T16:31:27Z", "ms": -407834912841.5096 }, "end": { "local": "1957-01-30T02:54:48+08:00", "utc": "1957-01-29T18:54:48Z", "ms": -407739912059.41486 } }, "kaala": "nishita", "days": [ { "local_date": "1957-01-28", "window": { "start": { "local": "1957-01-29T00:38:15+08:00", "utc": "1957-01-28T16:38:15Z", "ms": -407834505340.1677 }, "end": { "local": "1957-01-29T01:26:15+08:00", "utc": "1957-01-28T17:26:15Z", "ms": -407831625340.1677 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-01-29", "window": { "start": { "local": "1957-01-30T00:38:25+08:00", "utc": "1957-01-29T16:38:25Z", "ms": -407748094771.0199 }, "end": { "local": "1957-01-30T01:26:25+08:00", "utc": "1957-01-29T17:26:25Z", "ms": -407745214771.0199 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 00:31 on Tue 29 Jan to 02:55 on Wed 30 Jan.", "fact": "1957-01-28T16:31:27Z → 1957-01-29T18:54:48Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:38–01:26 on the 28th, 00:38–01:26 on the 29th.", "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 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both nights qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 408 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Monday 28 January.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-01-28", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-28", "confidence": "boundary" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Monday 28 January. Caturdaśī runs from 00:31 on Tue 29 Jan to 02:55 on Wed 30 Jan and covers all of niśītha that night. It also reaches the next night for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-01-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11275, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-01-29T00:31:27+08:00", "utc": "1957-01-28T16:31:27Z", "ms": -407834912841.5096 }, "end": { "local": "1957-01-30T02:54:48+08:00", "utc": "1957-01-29T18:54:48Z", "ms": -407739912059.41486 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-01-29T00:31:27+08:00", "utc": "1957-01-28T16:31:27Z", "ms": -407834912841.5096 }, "end": { "local": "1957-01-30T02:54:48+08:00", "utc": "1957-01-29T18:54:48Z", "ms": -407739912059.41486 } }, "kaala": "arunodaya", "days": [ { "local_date": "1957-01-29", "window": { "start": { "local": "1957-01-29T06:03:10+08:00", "utc": "1957-01-28T22:03:10Z", "ms": -407815009637.9463 }, "end": { "local": "1957-01-29T07:52:36+08:00", "utc": "1957-01-28T23:52:36Z", "ms": -407808443928.0476 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "1957-01-30", "window": { "start": { "local": "1957-01-30T06:02:43+08:00", "utc": "1957-01-29T22:02:43Z", "ms": -407728637319.9773 }, "end": { "local": "1957-01-30T07:51:54+08:00", "utc": "1957-01-29T23:51:54Z", "ms": -407722085519.59814 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 00:31 on Tue 29 Jan to 02:55 on Wed 30 Jan.", "fact": "1957-01-28T16:31:27Z → 1957-01-29T18:54:48Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 06:03–07:53 on the 29th, 06:03–07:52 on the 30th.", "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 109 of 109 minutes on the 29th and 0 of 109 on the 30th.", "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 11275 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Qingyang, 1957: Tuesday 29 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-01-29", "confidence": "determinate" } ], "quote": "In Qingyang, Yama Tarpaṇa 1957 falls on Tuesday 29 January. Caturdaśī runs from 00:31 on Tue 29 Jan to 02:55 on Wed 30 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 845, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-02-03T12:53:36+08:00", "utc": "1957-02-03T04:53:36Z", "ms": -407358384183.7251 }, "end": { "local": "1957-02-04T15:07:01+08:00", "utc": "1957-02-04T07:07:01Z", "ms": -407263978588.436 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-02-03T12:53:36+08:00", "utc": "1957-02-03T04:53:36Z", "ms": -407358384183.7251 }, "end": { "local": "1957-02-04T15:07:01+08:00", "utc": "1957-02-04T07:07:01Z", "ms": -407263978588.436 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-02-03", "window": { "start": { "local": "1957-02-03T12:39:31+08:00", "utc": "1957-02-03T04:39:31Z", "ms": -407359229305.3489 }, "end": { "local": "1957-02-03T13:27:31+08:00", "utc": "1957-02-03T05:27:31Z", "ms": -407356349305.3489 } }, "covered_min": 34, "window_min": 48, "qualifies": true }, { "local_date": "1957-02-04", "window": { "start": { "local": "1957-02-04T12:39:37+08:00", "utc": "1957-02-04T04:39:37Z", "ms": -407272822859.07635 }, "end": { "local": "1957-02-04T13:27:37+08:00", "utc": "1957-02-04T05:27:37Z", "ms": -407269942859.07635 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:54 on Sun 3 Feb to 15:07 on Mon 4 Feb.", "fact": "1957-02-03T04:53:36Z → 1957-02-04T07:07:01Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 3rd, 12:40–13:28 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 34 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": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 845 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Qingyang, 1957: Sunday 3 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": "1957-02-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-03", "confidence": "determinate" } ], "quote": "In Qingyang, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1957 falls on Sunday 3 February. Caturthī runs from 12:54 on Sun 3 Feb to 15:07 on Mon 4 Feb and covers 34 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/1957/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/1957/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11530, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-02-03T12:53:36+08:00", "utc": "1957-02-03T04:53:36Z", "ms": -407358384183.7251 }, "end": { "local": "1957-02-04T15:07:01+08:00", "utc": "1957-02-04T07:07:01Z", "ms": -407263978588.436 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-02-03T12:53:36+08:00", "utc": "1957-02-03T04:53:36Z", "ms": -407358384183.7251 }, "end": { "local": "1957-02-04T15:07:01+08:00", "utc": "1957-02-04T07:07:01Z", "ms": -407263978588.436 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-02-03", "window": { "start": { "local": "1957-02-03T18:18:09+08:00", "utc": "1957-02-03T10:18:09Z", "ms": -407338910614.7712 }, "end": { "local": "1957-02-03T20:06:08+08:00", "utc": "1957-02-03T12:06:08Z", "ms": -407332431534.9112 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1957-02-04", "window": { "start": { "local": "1957-02-04T18:19:12+08:00", "utc": "1957-02-04T10:19:12Z", "ms": -407252448202.33124 }, "end": { "local": "1957-02-04T20:06:56+08:00", "utc": "1957-02-04T12:06:56Z", "ms": -407245984247.7492 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:54 on Sun 3 Feb to 15:07 on Mon 4 Feb.", "fact": "1957-02-03T04:53:36Z → 1957-02-04T07:07:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:18–20:06 on the 3rd, 18:19–20:07 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 108 of 108 minutes on the 3rd and 0 of 108 on the 4th.", "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 11530 s" }, { "step": "ruling", "text": "Tila Caturthī, Qingyang, 1957: Sunday 3 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": "1957-02-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-03", "confidence": "determinate" } ], "quote": "In Qingyang, Tila Caturthī 1957 falls on Sunday 3 February. Caturthī runs from 12:54 on Sun 3 Feb to 15:07 on Mon 4 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5964, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1957-02-04T15:07:01+08:00", "utc": "1957-02-04T07:07:01Z", "ms": -407263978588.436 }, "end": { "local": "1957-02-05T17:00:51+08:00", "utc": "1957-02-05T09:00:51Z", "ms": -407170749131.83234 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-02-04T15:07:01+08:00", "utc": "1957-02-04T07:07:01Z", "ms": -407263978588.436 }, "end": { "local": "1957-02-05T17:00:51+08:00", "utc": "1957-02-05T09:00:51Z", "ms": -407170749131.83234 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-02-04", "window": { "start": { "local": "1957-02-04T12:39:37+08:00", "utc": "1957-02-04T04:39:37Z", "ms": -407272822859.07635 }, "end": { "local": "1957-02-04T13:27:37+08:00", "utc": "1957-02-04T05:27:37Z", "ms": -407269942859.07635 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-02-05", "window": { "start": { "local": "1957-02-05T12:39:43+08:00", "utc": "1957-02-05T04:39:43Z", "ms": -407186417244.1476 }, "end": { "local": "1957-02-05T13:27:43+08:00", "utc": "1957-02-05T05:27:43Z", "ms": -407183537244.1476 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 15:07 on Mon 4 Feb to 17:01 on Tue 5 Feb.", "fact": "1957-02-04T07:07:01Z → 1957-02-05T09:00:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 4th, 12:40–13:28 on the 5th.", "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 4th and 48 of 48 on the 5th.", "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 5964 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Qingyang, 1957: Tuesday 5 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": "1957-02-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-05", "confidence": "determinate" } ], "quote": "In Qingyang, Śrī Pañcamī 1957 falls on Tuesday 5 February. Pañcamī runs from 15:07 on Mon 4 Feb to 17:01 on Tue 5 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5964, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1957-02-04T15:07:01+08:00", "utc": "1957-02-04T07:07:01Z", "ms": -407263978588.436 }, "end": { "local": "1957-02-05T17:00:51+08:00", "utc": "1957-02-05T09:00:51Z", "ms": -407170749131.83234 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-02-04T15:07:01+08:00", "utc": "1957-02-04T07:07:01Z", "ms": -407263978588.436 }, "end": { "local": "1957-02-05T17:00:51+08:00", "utc": "1957-02-05T09:00:51Z", "ms": -407170749131.83234 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-02-04", "window": { "start": { "local": "1957-02-04T12:39:37+08:00", "utc": "1957-02-04T04:39:37Z", "ms": -407272822859.07635 }, "end": { "local": "1957-02-04T13:27:37+08:00", "utc": "1957-02-04T05:27:37Z", "ms": -407269942859.07635 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-02-05", "window": { "start": { "local": "1957-02-05T12:39:43+08:00", "utc": "1957-02-05T04:39:43Z", "ms": -407186417244.1476 }, "end": { "local": "1957-02-05T13:27:43+08:00", "utc": "1957-02-05T05:27:43Z", "ms": -407183537244.1476 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 15:07 on Mon 4 Feb to 17:01 on Tue 5 Feb.", "fact": "1957-02-04T07:07:01Z → 1957-02-05T09:00:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 4th, 12:40–13:28 on the 5th.", "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 4th and 48 of 48 on the 5th.", "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 5964 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Qingyang, 1957: Tuesday 5 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": "1957-02-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-05", "confidence": "determinate" } ], "quote": "In Qingyang, Vasanta Pañcamī 1957 falls on Tuesday 5 February. Pañcamī runs from 15:07 on Mon 4 Feb to 17:01 on Tue 5 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38403, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1957-02-06T18:26:22+08:00", "utc": "1957-02-06T10:26:22Z", "ms": -407079217867.06146 }, "end": { "local": "1957-02-07T19:15:01+08:00", "utc": "1957-02-07T11:15:01Z", "ms": -406989898561.5088 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-02-06T18:26:22+08:00", "utc": "1957-02-06T10:26:22Z", "ms": -407079217867.06146 }, "end": { "local": "1957-02-07T19:15:01+08:00", "utc": "1957-02-07T11:15:01Z", "ms": -406989898561.5088 } }, "kaala": "arunodaya", "days": [ { "local_date": "1957-02-06", "window": { "start": { "local": "1957-02-06T05:58:50+08:00", "utc": "1957-02-05T21:58:50Z", "ms": -407124069702.3381 }, "end": { "local": "1957-02-06T07:46:19+08:00", "utc": "1957-02-05T23:46:19Z", "ms": -407117621049.5702 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1957-02-07", "window": { "start": { "local": "1957-02-07T05:58:12+08:00", "utc": "1957-02-06T21:58:12Z", "ms": -407037708188.6065 }, "end": { "local": "1957-02-07T07:45:25+08:00", "utc": "1957-02-06T23:45:25Z", "ms": -407031275007.0994 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 18:26 on Wed 6 Feb to 19:15 on Thu 7 Feb.", "fact": "1957-02-06T10:26:22Z → 1957-02-07T11:15:01Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:59–07:46 on the 6th, 05:58–07:45 on the 7th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during aruṇodaya. It covers 0 of 107 minutes on the 6th and 107 of 107 on the 7th.", "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 38403 s" }, { "step": "ruling", "text": "Ratha Saptamī, Qingyang, 1957: Thursday 7 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": "1957-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-07", "confidence": "determinate" } ], "quote": "In Qingyang, Ratha Saptamī 1957 falls on Thursday 7 February. Saptamī runs from 18:26 on Wed 6 Feb to 19:15 on Thu 7 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-02-11", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25550, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-02-10T17:04:49+08:00", "utc": "1957-02-10T09:04:49Z", "ms": -406738510625.92206 }, "end": { "local": "1957-02-11T14:47:25+08:00", "utc": "1957-02-11T06:47:25Z", "ms": -406660355034.63824 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-02-10T17:04:49+08:00", "utc": "1957-02-10T09:04:49Z", "ms": -406738510625.92206 }, "end": { "local": "1957-02-11T14:47:25+08:00", "utc": "1957-02-11T06:47:25Z", "ms": -406660355034.63824 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-02-10", "window": { "start": { "local": "1957-02-10T07:42:35+08:00", "utc": "1957-02-09T23:42:35Z", "ms": -406772245287.9435 }, "end": { "local": "1957-02-10T07:42:35+08:00", "utc": "1957-02-09T23:42:35Z", "ms": -406772245287.9435 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-02-11", "window": { "start": { "local": "1957-02-11T07:41:35+08:00", "utc": "1957-02-10T23:41:35Z", "ms": -406685904747.41003 }, "end": { "local": "1957-02-11T07:41:35+08:00", "utc": "1957-02-10T23:41:35Z", "ms": -406685904747.41003 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:05 on Sun 10 Feb to 14:47 on Mon 11 Feb.", "fact": "1957-02-10T09:04:49Z → 1957-02-11T06:47:25Z" }, { "step": "kaala", "text": "Sunrise is at 07:43 on the 10th and 07:42 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 10th and is on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 25550 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Qingyang, 1957: Monday 11 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-02-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-11", "confidence": "determinate" } ], "quote": "In Qingyang, Jayā Ekādaśī 1957 falls on Monday 11 February. Ekādaśī runs from 17:05 on Sun 10 Feb to 14:47 on Mon 11 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-02-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2964, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1957-02-11T14:47:25+08:00", "utc": "1957-02-11T06:47:25Z", "ms": -406660355034.63824 }, "end": { "local": "1957-02-12T11:50:35+08:00", "utc": "1957-02-12T03:50:35Z", "ms": -406584565088.12286 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-02-11T14:47:25+08:00", "utc": "1957-02-11T06:47:25Z", "ms": -406660355034.63824 }, "end": { "local": "1957-02-12T11:50:35+08:00", "utc": "1957-02-12T03:50:35Z", "ms": -406584565088.12286 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-02-11", "window": { "start": { "local": "1957-02-11T12:39:59+08:00", "utc": "1957-02-11T04:39:59Z", "ms": -406668000828.87634 }, "end": { "local": "1957-02-11T13:27:59+08:00", "utc": "1957-02-11T05:27:59Z", "ms": -406665120828.87634 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-02-12", "window": { "start": { "local": "1957-02-12T12:39:59+08:00", "utc": "1957-02-12T04:39:59Z", "ms": -406581600910.09814 }, "end": { "local": "1957-02-12T13:27:59+08:00", "utc": "1957-02-12T05:27:59Z", "ms": -406578720910.09814 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:47 on Mon 11 Feb to 11:51 on Tue 12 Feb.", "fact": "1957-02-11T06:47:25Z → 1957-02-12T03:50:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 11th, 12:40–13:28 on the 12th.", "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 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 2964 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Qingyang, 1957: Tuesday 12 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": "1957-02-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-12", "confidence": "determinate" } ], "quote": "In Qingyang, Bhīṣma Dvādaśī 1957 falls on Tuesday 12 February. Dvādaśī runs from 14:47 on Mon 11 Feb to 11:51 on Tue 12 Feb, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/pradosha-vrata?on=1957-02-12", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23809, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-02-12T11:50:35+08:00", "utc": "1957-02-12T03:50:35Z", "ms": -406584565088.12286 }, "end": { "local": "1957-02-13T08:22:57+08:00", "utc": "1957-02-13T00:22:57Z", "ms": -406510622639.4803 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-02-12T11:50:35+08:00", "utc": "1957-02-12T03:50:35Z", "ms": -406584565088.12286 }, "end": { "local": "1957-02-13T08:22:57+08:00", "utc": "1957-02-13T00:22:57Z", "ms": -406510622639.4803 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-02-12", "window": { "start": { "local": "1957-02-12T18:27:24+08:00", "utc": "1957-02-12T10:27:24Z", "ms": -406560756317.9439 }, "end": { "local": "1957-02-12T20:13:01+08:00", "utc": "1957-02-12T12:13:01Z", "ms": -406554419144.6901 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1957-02-13", "window": { "start": { "local": "1957-02-13T18:28:24+08:00", "utc": "1957-02-13T10:28:24Z", "ms": -406474296017.75183 }, "end": { "local": "1957-02-13T20:13:45+08:00", "utc": "1957-02-13T12:13:45Z", "ms": -406467975316.93304 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:51 on Tue 12 Feb to 08:23 on Wed 13 Feb.", "fact": "1957-02-12T03:50:35Z → 1957-02-13T00:22:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:27–20:13 on the 12th, 18:28–20:14 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 12th and 0 of 105 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23809 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Tuesday 12 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": "1957-02-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-12", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Tuesday 12 February. Trayodaśī runs from 11:51 on Tue 12 Feb to 08:23 on Wed 13 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-02-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29103, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-02-14T04:34:53+08:00", "utc": "1957-02-13T20:34:53Z", "ms": -406437906507.64294 }, "end": { "local": "1957-02-15T00:37:48+08:00", "utc": "1957-02-14T16:37:48Z", "ms": -406365732396.94653 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1957-02-14T04:34:53+08:00", "utc": "1957-02-13T20:34:53Z", "ms": -406437906507.64294 }, "end": { "local": "1957-02-15T00:37:48+08:00", "utc": "1957-02-14T16:37:48Z", "ms": -406365732396.94653 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-02-14", "window": { "start": { "local": "1957-02-14T12:39:57+08:00", "utc": "1957-02-14T04:39:57Z", "ms": -406408803388.3523 }, "end": { "local": "1957-02-14T13:27:57+08:00", "utc": "1957-02-14T05:27:57Z", "ms": -406405923388.3523 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-02-15", "window": { "start": { "local": "1957-02-15T12:39:54+08:00", "utc": "1957-02-15T04:39:54Z", "ms": -406322405754.5732 }, "end": { "local": "1957-02-15T13:27:54+08:00", "utc": "1957-02-15T05:27:54Z", "ms": -406319525754.5732 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:35 on Thu 14 Feb to 00:38 on Fri 15 Feb.", "fact": "1957-02-13T20:34:53Z → 1957-02-14T16:37:48Z" }, { "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": "Pūrṇimā 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: paraviddha → only-day · margin 29103 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Qingyang, 1957: Thursday 14 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": "1957-02-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-14", "confidence": "determinate" } ], "quote": "In Qingyang, Māghī Pūrṇimā 1957 falls on Thursday 14 February. Pūrṇimā runs from 04:35 on Thu 14 Feb to 00:38 on Fri 15 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-02-17", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28812, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-02-17T13:50:36+08:00", "utc": "1957-02-17T05:50:36Z", "ms": -406145364140.6485 }, "end": { "local": "1957-02-18T11:13:20+08:00", "utc": "1957-02-18T03:13:20Z", "ms": -406068399544.987 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1957-02-17T13:50:36+08:00", "utc": "1957-02-17T05:50:36Z", "ms": -406145364140.6485 }, "end": { "local": "1957-02-18T11:13:20+08:00", "utc": "1957-02-18T03:13:20Z", "ms": -406068399544.987 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-02-17", "window": { "start": { "local": "1957-02-17T21:50:48+08:00", "utc": "1957-02-17T13:50:48Z", "ms": -406116551688.4351 }, "end": { "local": "1957-02-17T21:50:48+08:00", "utc": "1957-02-17T13:50:48Z", "ms": -406116551688.4351 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-02-18", "window": { "start": { "local": "1957-02-18T22:58:22+08:00", "utc": "1957-02-18T14:58:22Z", "ms": -406026097941.6722 }, "end": { "local": "1957-02-18T22:58:22+08:00", "utc": "1957-02-18T14:58:22Z", "ms": -406026097941.6722 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:51 on Sun 17 Feb to 11:13 on Mon 18 Feb.", "fact": "1957-02-17T05:50:36Z → 1957-02-18T03:13:20Z" }, { "step": "kaala", "text": "Moonrise is at 21:51 on the 17th and 22:58 on the 18th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 17th and is not on the 18th.", "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 28812 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Sunday 17 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": "1957-02-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-17", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Sunday 17 February. Caturthī runs from 13:51 on Sun 17 Feb to 11:13 on Mon 18 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-02-17", "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/1957/ekadashi?on=1957-02-25", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16243, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-02-24T11:57:41+08:00", "utc": "1957-02-24T03:57:41Z", "ms": -405547339496.7554 }, "end": { "local": "1957-02-25T14:14:45+08:00", "utc": "1957-02-25T06:14:45Z", "ms": -405452714595.444 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1957-02-24T11:57:41+08:00", "utc": "1957-02-24T03:57:41Z", "ms": -405547339496.7554 }, "end": { "local": "1957-02-25T14:14:45+08:00", "utc": "1957-02-25T06:14:45Z", "ms": -405452714595.444 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-02-24", "window": { "start": { "local": "1957-02-24T07:26:57+08:00", "utc": "1957-02-23T23:26:57Z", "ms": -405563582956.9548 }, "end": { "local": "1957-02-24T07:26:57+08:00", "utc": "1957-02-23T23:26:57Z", "ms": -405563582956.9548 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-02-25", "window": { "start": { "local": "1957-02-25T07:25:43+08:00", "utc": "1957-02-24T23:25:43Z", "ms": -405477257409.72186 }, "end": { "local": "1957-02-25T07:25:43+08:00", "utc": "1957-02-24T23:25:43Z", "ms": -405477257409.72186 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:58 on Sun 24 Feb to 14:15 on Mon 25 Feb.", "fact": "1957-02-24T03:57:41Z → 1957-02-25T06:14:45Z" }, { "step": "kaala", "text": "Sunrise is at 07:27 on the 24th and 07:26 on the 25th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 24th and is on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16243 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Qingyang, 1957: Monday 25 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-02-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-25", "confidence": "determinate" } ], "quote": "In Qingyang, Vijayā Ekādaśī 1957 falls on Monday 25 February. Ekādaśī runs from 11:58 on Sun 24 Feb to 14:15 on Mon 25 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-02-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-02-26", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-26", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2170, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-02-26T16:44:30+08:00", "utc": "1957-02-26T08:44:30Z", "ms": -405357330174.8109 }, "end": { "local": "1957-02-27T19:18:06+08:00", "utc": "1957-02-27T11:18:06Z", "ms": -405261713539.04065 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1957-02-26T16:44:30+08:00", "utc": "1957-02-26T08:44:30Z", "ms": -405357330174.8109 }, "end": { "local": "1957-02-27T19:18:06+08:00", "utc": "1957-02-27T11:18:06Z", "ms": -405261713539.04065 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-02-26", "window": { "start": { "local": "1957-02-26T18:41:00+08:00", "utc": "1957-02-26T10:41:00Z", "ms": -405350339874.2925 }, "end": { "local": "1957-02-26T20:22:38+08:00", "utc": "1957-02-26T12:22:38Z", "ms": -405344242391.9511 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1957-02-27", "window": { "start": { "local": "1957-02-27T18:41:56+08:00", "utc": "1957-02-27T10:41:56Z", "ms": -405263883918.8747 }, "end": { "local": "1957-02-27T20:23:16+08:00", "utc": "1957-02-27T12:23:16Z", "ms": -405257804141.8029 } }, "covered_min": 36, "window_min": 101, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:44 on Tue 26 Feb to 19:18 on Wed 27 Feb.", "fact": "1957-02-26T08:44:30Z → 1957-02-27T11:18:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:41–20:23 on the 26th, 18:42–20:23 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 26th and 36 of 101 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2170 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Tuesday 26 February.", "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": "1957-02-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-26", "confidence": "boundary" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Tuesday 26 February. Trayodaśī runs from 16:44 on Tue 26 Feb to 19:18 on Wed 27 Feb and covers all of pradoṣa that evening. It also reaches the next evening for 36 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/1957/pradosha-vrata?on=1957-02-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-02-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10128, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-02-27T19:18:06+08:00", "utc": "1957-02-27T11:18:06Z", "ms": -405261713539.04065 }, "end": { "local": "1957-02-28T21:48:56+08:00", "utc": "1957-02-28T13:48:56Z", "ms": -405166263618.2378 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1957-02-27T19:18:06+08:00", "utc": "1957-02-27T11:18:06Z", "ms": -405261713539.04065 }, "end": { "local": "1957-02-28T21:48:56+08:00", "utc": "1957-02-28T13:48:56Z", "ms": -405166263618.2378 } }, "kaala": "nishita", "days": [ { "local_date": "1957-02-27", "window": { "start": { "local": "1957-02-28T00:37:55+08:00", "utc": "1957-02-27T16:37:55Z", "ms": -405242524754.8556 }, "end": { "local": "1957-02-28T01:25:55+08:00", "utc": "1957-02-27T17:25:55Z", "ms": -405239644754.8556 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-02-28", "window": { "start": { "local": "1957-03-01T00:37:44+08:00", "utc": "1957-02-28T16:37:44Z", "ms": -405156135723.3501 }, "end": { "local": "1957-03-01T01:25:44+08:00", "utc": "1957-02-28T17:25:44Z", "ms": -405153255723.3501 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:18 on Wed 27 Feb to 21:49 on Thu 28 Feb.", "fact": "1957-02-27T11:18:06Z → 1957-02-28T13:48:56Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:38–01:26 on the 27th, 00:38–01:26 on the 28th.", "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 27th and 0 of 48 on the 28th.", "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 10128 s" }, { "step": "ruling", "text": "Mahāśivarātri, Qingyang, 1957: Wednesday 27 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-02-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-02-27", "confidence": "determinate" } ], "quote": "In Qingyang, Mahāśivarātri 1957 falls on Wednesday 27 February. Caturdaśī runs from 19:18 on Wed 27 Feb to 21:49 on Thu 28 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vinayaka-chaturthi?on=1957-03-05", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18863, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-03-05T06:03:59+08:00", "utc": "1957-03-04T22:03:59Z", "ms": -404790961000.04297 }, "end": { "local": "1957-03-06T07:22:46+08:00", "utc": "1957-03-05T23:22:46Z", "ms": -404699834324.73706 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1957-03-05T06:03:59+08:00", "utc": "1957-03-04T22:03:59Z", "ms": -404790961000.04297 }, "end": { "local": "1957-03-06T07:22:46+08:00", "utc": "1957-03-05T23:22:46Z", "ms": -404699834324.73706 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-03-05", "window": { "start": { "local": "1957-03-05T12:37:22+08:00", "utc": "1957-03-05T04:37:22Z", "ms": -404767357578.6217 }, "end": { "local": "1957-03-05T13:25:22+08:00", "utc": "1957-03-05T05:25:22Z", "ms": -404764477578.6217 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-03-06", "window": { "start": { "local": "1957-03-06T12:37:09+08:00", "utc": "1957-03-06T04:37:09Z", "ms": -404680971124.506 }, "end": { "local": "1957-03-06T13:25:09+08:00", "utc": "1957-03-06T05:25:09Z", "ms": -404678091124.506 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:04 on Tue 5 Mar to 07:23 on Wed 6 Mar.", "fact": "1957-03-04T22:03:59Z → 1957-03-05T23:22:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 5th, 12:37–13:25 on the 6th.", "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 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18863 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Tuesday 5 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": "1957-03-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-05", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Tuesday 5 March. Caturthī runs from 06:04 on Tue 5 Mar to 07:23 on Wed 6 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-03-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/ekadashi?on=1957-03-12", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13652, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-03-12T03:18:12+08:00", "utc": "1957-03-11T19:18:12Z", "ms": -404196108486.2852 }, "end": { "local": "1957-03-13T00:27:16+08:00", "utc": "1957-03-12T16:27:16Z", "ms": -404119964152.3901 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1957-03-12T03:18:12+08:00", "utc": "1957-03-11T19:18:12Z", "ms": -404196108486.2852 }, "end": { "local": "1957-03-13T00:27:16+08:00", "utc": "1957-03-12T16:27:16Z", "ms": -404119964152.3901 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-03-12", "window": { "start": { "local": "1957-03-12T07:05:43+08:00", "utc": "1957-03-11T23:05:43Z", "ms": -404182456583.81134 }, "end": { "local": "1957-03-12T07:05:43+08:00", "utc": "1957-03-11T23:05:43Z", "ms": -404182456583.81134 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-03-13", "window": { "start": { "local": "1957-03-13T07:04:19+08:00", "utc": "1957-03-12T23:04:19Z", "ms": -404096140694.69525 }, "end": { "local": "1957-03-13T07:04:19+08:00", "utc": "1957-03-12T23:04:19Z", "ms": -404096140694.69525 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:18 on Tue 12 Mar to 00:27 on Wed 13 Mar.", "fact": "1957-03-11T19:18:12Z → 1957-03-12T16:27:16Z" }, { "step": "kaala", "text": "Sunrise is at 07:06 on the 12th and 07:04 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13652 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Qingyang, 1957: Tuesday 12 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": "1957-03-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-12", "confidence": "determinate" } ], "quote": "In Qingyang, Āmalakī Ekādaśī 1957 falls on Tuesday 12 March. Ekādaśī runs from 03:18 on Tue 12 Mar to 00:27 on Wed 13 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-03-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-03-13", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-13", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2339, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-03-13T21:10:34+08:00", "utc": "1957-03-13T13:10:34Z", "ms": -404045366423.6538 }, "end": { "local": "1957-03-14T17:37:09+08:00", "utc": "1957-03-14T09:37:09Z", "ms": -403971770652.07446 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1957-03-13T21:10:34+08:00", "utc": "1957-03-13T13:10:34Z", "ms": -404045366423.6538 }, "end": { "local": "1957-03-14T17:37:09+08:00", "utc": "1957-03-14T09:37:09Z", "ms": -403971770652.07446 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-03-13", "window": { "start": { "local": "1957-03-13T18:54:26+08:00", "utc": "1957-03-13T10:54:26Z", "ms": -404053533531.2869 }, "end": { "local": "1957-03-13T20:31:34+08:00", "utc": "1957-03-13T12:31:34Z", "ms": -404047705747.72595 } }, "covered_min": 0, "window_min": 97, "qualifies": false }, { "local_date": "1957-03-14", "window": { "start": { "local": "1957-03-14T18:55:18+08:00", "utc": "1957-03-14T10:55:18Z", "ms": -403967082071.12225 }, "end": { "local": "1957-03-14T20:32:08+08:00", "utc": "1957-03-14T12:32:08Z", "ms": -403961272452.42413 } }, "covered_min": 0, "window_min": 97, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:11 on Wed 13 Mar to 17:37 on Thu 14 Mar.", "fact": "1957-03-13T13:10:34Z → 1957-03-14T09:37:09Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:54–20:32 on the 13th, 18:55–20:32 on the 14th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 97 minutes on the 13th and 0 of 97 on the 14th.", "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 2339 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Wednesday 13 March.", "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": "1957-03-13", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-13", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Wednesday 13 March. Trayodaśī runs from 21:11 on Wed 13 Mar to 17:37 on Thu 14 Mar, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-03-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9356, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-03-15T13:57:17+08:00", "utc": "1957-03-15T05:57:17Z", "ms": -403898563126.8982 }, "end": { "local": "1957-03-16T10:21:48+08:00", "utc": "1957-03-16T02:21:48Z", "ms": -403825092434.0365 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1957-03-15T13:57:17+08:00", "utc": "1957-03-15T05:57:17Z", "ms": -403898563126.8982 }, "end": { "local": "1957-03-16T10:21:48+08:00", "utc": "1957-03-16T02:21:48Z", "ms": -403825092434.0365 } }, "kaala": "sayahna", "days": [ { "local_date": "1957-03-15", "window": { "start": { "local": "1957-03-15T16:33:13+08:00", "utc": "1957-03-15T08:33:13Z", "ms": -403889206656.8147 }, "end": { "local": "1957-03-15T18:56:09+08:00", "utc": "1957-03-15T10:56:09Z", "ms": -403880630838.2968 } }, "covered_min": 143, "window_min": 143, "qualifies": true }, { "local_date": "1957-03-16", "window": { "start": { "local": "1957-03-16T16:33:37+08:00", "utc": "1957-03-16T08:33:37Z", "ms": -403802782850.2952 }, "end": { "local": "1957-03-16T18:57:00+08:00", "utc": "1957-03-16T10:57:00Z", "ms": -403794179815.2094 } }, "covered_min": 0, "window_min": 143, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:57 on Fri 15 Mar to 10:22 on Sat 16 Mar.", "fact": "1957-03-15T05:57:17Z → 1957-03-16T02:21:48Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:33–18:56 on the 15th, 16:34–18:57 on the 16th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 143 of 143 minutes on the 15th and 0 of 143 on the 16th.", "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 9356 s" }, { "step": "ruling", "text": "Holikā Dahana, Qingyang, 1957: Friday 15 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": "1957-03-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-15", "confidence": "determinate" } ], "quote": "In Qingyang, Holikā Dahana 1957 falls on Friday 15 March. Pūrṇimā runs from 13:57 on Fri 15 Mar to 10:22 on Sat 16 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9356, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-03-15T13:57:17+08:00", "utc": "1957-03-15T05:57:17Z", "ms": -403898563126.8982 }, "end": { "local": "1957-03-16T10:21:48+08:00", "utc": "1957-03-16T02:21:48Z", "ms": -403825092434.0365 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1957-03-15T13:57:17+08:00", "utc": "1957-03-15T05:57:17Z", "ms": -403898563126.8982 }, "end": { "local": "1957-03-16T10:21:48+08:00", "utc": "1957-03-16T02:21:48Z", "ms": -403825092434.0365 } }, "kaala": "sayahna", "days": [ { "local_date": "1957-03-15", "window": { "start": { "local": "1957-03-15T16:33:13+08:00", "utc": "1957-03-15T08:33:13Z", "ms": -403889206656.8147 }, "end": { "local": "1957-03-15T18:56:09+08:00", "utc": "1957-03-15T10:56:09Z", "ms": -403880630838.2968 } }, "covered_min": 143, "window_min": 143, "qualifies": true }, { "local_date": "1957-03-16", "window": { "start": { "local": "1957-03-16T16:33:37+08:00", "utc": "1957-03-16T08:33:37Z", "ms": -403802782850.2952 }, "end": { "local": "1957-03-16T18:57:00+08:00", "utc": "1957-03-16T10:57:00Z", "ms": -403794179815.2094 } }, "covered_min": 0, "window_min": 143, "qualifies": false } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1957-03-15", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:57 on Fri 15 Mar to 10:22 on Sat 16 Mar.", "fact": "1957-03-15T05:57:17Z → 1957-03-16T02:21:48Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:33–18:56 on the 15th, 16:34–18:57 on the 16th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 143 of 143 minutes on the 15th and 0 of 143 on the 16th.", "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 9356 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Friday 15 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Qingyang, 1957: Saturday 16 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": "1957-03-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-16", "confidence": "determinate" } ], "quote": "In Qingyang, Holī 1957 falls on Saturday 16 March. It is kept the day after Holikā Dahana, which falls on Friday 15 March. Pūrṇimā runs from 13:57 on Fri 15 Mar to 10:22 on Sat 16 Mar and covers all of sāyāhna on the 15th.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-17", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 181, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1957-03-16T10:21:48+08:00", "utc": "1957-03-16T02:21:48Z", "ms": -403825092434.0365 }, "end": { "local": "1957-03-17T07:01:41+08:00", "utc": "1957-03-16T23:01:41Z", "ms": -403750699275.93396 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-03-16T10:21:48+08:00", "utc": "1957-03-16T02:21:48Z", "ms": -403825092434.0365 }, "end": { "local": "1957-03-17T07:01:41+08:00", "utc": "1957-03-16T23:01:41Z", "ms": -403750699275.93396 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-03-16", "window": { "start": { "local": "1957-03-16T07:00:05+08:00", "utc": "1957-03-15T23:00:05Z", "ms": -403837194990.6384 }, "end": { "local": "1957-03-16T07:00:05+08:00", "utc": "1957-03-15T23:00:05Z", "ms": -403837194990.6384 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-03-17", "window": { "start": { "local": "1957-03-17T06:58:40+08:00", "utc": "1957-03-16T22:58:40Z", "ms": -403750880300.6399 }, "end": { "local": "1957-03-17T06:58:40+08:00", "utc": "1957-03-16T22:58:40Z", "ms": -403750880300.6399 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 10:22 on Sat 16 Mar to 07:02 on Sun 17 Mar.", "fact": "1957-03-16T02:21:48Z → 1957-03-16T23:01:41Z" }, { "step": "kaala", "text": "Sunrise is at 07:00 on the 16th and 06:59 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is not on the 16th and is on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 181 s < 300 s" }, { "step": "ruling", "text": "Vasantotsava, Qingyang, 1957: Sunday 17 March.", "fact": "confidence: boundary (margin)" } ], "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": "1957-03-16", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-17", "confidence": "boundary" } ], "quote": "In Qingyang, Vasantotsava 1957 falls on Sunday 17 March. Pratipadā runs from 10:22 on Sat 16 Mar to 07:02 on Sun 17 Mar and is current at sunrise that day. It is 3 min 01 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-03-19", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5097, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-03-19T01:48:57+08:00", "utc": "1957-03-18T17:48:57Z", "ms": -403596663089.16296 }, "end": { "local": "1957-03-20T00:13:45+08:00", "utc": "1957-03-19T16:13:45Z", "ms": -403515974975.90063 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-03-19T01:48:57+08:00", "utc": "1957-03-18T17:48:57Z", "ms": -403596663089.16296 }, "end": { "local": "1957-03-20T00:13:45+08:00", "utc": "1957-03-19T16:13:45Z", "ms": -403515974975.90063 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-03-18", "window": { "start": { "local": "1957-03-18T21:43:15+08:00", "utc": "1957-03-18T13:43:15Z", "ms": -403611405116.2852 }, "end": { "local": "1957-03-18T21:43:15+08:00", "utc": "1957-03-18T13:43:15Z", "ms": -403611405116.2852 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-03-19", "window": { "start": { "local": "1957-03-19T22:48:48+08:00", "utc": "1957-03-19T14:48:48Z", "ms": -403521072023.3208 }, "end": { "local": "1957-03-19T22:48:48+08:00", "utc": "1957-03-19T14:48:48Z", "ms": -403521072023.3208 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:49 on Tue 19 Mar to 00:14 on Wed 20 Mar.", "fact": "1957-03-18T17:48:57Z → 1957-03-19T16:13:45Z" }, { "step": "kaala", "text": "Moonrise is at 21:43 on the 18th and 22:49 on the 19th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 18th and is on the 19th.", "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 5097 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Tuesday 19 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": "1957-03-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-19", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Tuesday 19 March. Caturthī runs from 01:49 on Tue 19 Mar to 00:14 on Wed 20 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-03-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38194, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1957-03-23T00:22:32+08:00", "utc": "1957-03-22T16:22:32Z", "ms": -403256248397.53845 }, "end": { "local": "1957-03-24T01:55:36+08:00", "utc": "1957-03-23T17:55:36Z", "ms": -403164263742.98224 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-03-23T00:22:32+08:00", "utc": "1957-03-22T16:22:32Z", "ms": -403256248397.53845 }, "end": { "local": "1957-03-24T01:55:36+08:00", "utc": "1957-03-23T17:55:36Z", "ms": -403164263742.98224 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-03-23", "window": { "start": { "local": "1957-03-23T12:32:29+08:00", "utc": "1957-03-23T04:32:29Z", "ms": -403212451355.81757 }, "end": { "local": "1957-03-23T13:20:29+08:00", "utc": "1957-03-23T05:20:29Z", "ms": -403209571355.81757 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-03-24", "window": { "start": { "local": "1957-03-24T12:32:11+08:00", "utc": "1957-03-24T04:32:11Z", "ms": -403126069479.2305 }, "end": { "local": "1957-03-24T13:20:11+08:00", "utc": "1957-03-24T05:20:11Z", "ms": -403123189479.2305 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:23 on Sat 23 Mar to 01:56 on Sun 24 Mar.", "fact": "1957-03-22T16:22:32Z → 1957-03-23T17:55:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 23rd, 12:32–13:20 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 38194 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Qingyang, 1957: Saturday 23 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitalashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Sitalastami, (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-23", "confidence": "determinate" } ], "quote": "In Qingyang, Śītalāṣṭamī 1957 falls on Saturday 23 March. Aṣṭamī runs from 00:23 on Sat 23 Mar to 01:56 on Sun 24 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-03-27", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1297, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-03-26T06:24:09+08:00", "utc": "1957-03-25T22:24:09Z", "ms": -402975350932.2387 }, "end": { "local": "1957-03-27T08:55:33+08:00", "utc": "1957-03-27T00:55:33Z", "ms": -402879866810.7614 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-03-26T06:24:09+08:00", "utc": "1957-03-25T22:24:09Z", "ms": -402975350932.2387 }, "end": { "local": "1957-03-27T08:55:33+08:00", "utc": "1957-03-27T00:55:33Z", "ms": -402879866810.7614 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-03-26", "window": { "start": { "local": "1957-03-26T06:45:46+08:00", "utc": "1957-03-25T22:45:46Z", "ms": -402974054010.1989 }, "end": { "local": "1957-03-26T06:45:46+08:00", "utc": "1957-03-25T22:45:46Z", "ms": -402974054010.1989 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-03-27", "window": { "start": { "local": "1957-03-27T06:44:20+08:00", "utc": "1957-03-26T22:44:20Z", "ms": -402887740072.5354 }, "end": { "local": "1957-03-27T06:44:20+08:00", "utc": "1957-03-26T22:44:20Z", "ms": -402887740072.5354 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:24 on Tue 26 Mar to 08:56 on Wed 27 Mar.", "fact": "1957-03-25T22:24:09Z → 1957-03-27T00:55:33Z" }, { "step": "kaala", "text": "Sunrise is at 06:46 on the 26th and 06:44 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 26th and is on the 27th.", "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 1297 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Qingyang, 1957: Wednesday 27 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-27", "confidence": "determinate" } ], "quote": "In Qingyang, Pāpamocanī Ekādaśī 1957 falls on Wednesday 27 March. Ekādaśī runs from 06:24 on Tue 26 Mar to 08:56 on Wed 27 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-03-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-03-28", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19654, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-03-28T11:23:40+08:00", "utc": "1957-03-28T03:23:40Z", "ms": -402784579579.82355 }, "end": { "local": "1957-03-29T13:40:17+08:00", "utc": "1957-03-29T05:40:17Z", "ms": -402689982567.0154 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-03-28T11:23:40+08:00", "utc": "1957-03-28T03:23:40Z", "ms": -402784579579.82355 }, "end": { "local": "1957-03-29T13:40:17+08:00", "utc": "1957-03-29T05:40:17Z", "ms": -402689982567.0154 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-03-28", "window": { "start": { "local": "1957-03-28T19:07:02+08:00", "utc": "1957-03-28T11:07:02Z", "ms": -402756778359.1437 }, "end": { "local": "1957-03-28T20:39:37+08:00", "utc": "1957-03-28T12:39:37Z", "ms": -402751222832.14044 } }, "covered_min": 93, "window_min": 93, "qualifies": true }, { "local_date": "1957-03-29", "window": { "start": { "local": "1957-03-29T19:07:51+08:00", "utc": "1957-03-29T11:07:51Z", "ms": -402670328793.3921 }, "end": { "local": "1957-03-29T20:40:09+08:00", "utc": "1957-03-29T12:40:09Z", "ms": -402664791304.0566 } }, "covered_min": 0, "window_min": 92, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:24 on Thu 28 Mar to 13:40 on Fri 29 Mar.", "fact": "1957-03-28T03:23:40Z → 1957-03-29T05:40:17Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:07–20:40 on the 28th, 19:08–20:40 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 93 of 93 minutes on the 28th and 0 of 92 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19654 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Thursday 28 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-28", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Thursday 28 March. Trayodaśī runs from 11:24 on Thu 28 Mar to 13:40 on Fri 29 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-03-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-03-29", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31789, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-03-29T13:40:17+08:00", "utc": "1957-03-29T05:40:17Z", "ms": -402689982567.0154 }, "end": { "local": "1957-03-30T15:39:50+08:00", "utc": "1957-03-30T07:39:50Z", "ms": -402596410381.44476 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-03-29T13:40:17+08:00", "utc": "1957-03-29T05:40:17Z", "ms": -402689982567.0154 }, "end": { "local": "1957-03-30T15:39:50+08:00", "utc": "1957-03-30T07:39:50Z", "ms": -402596410381.44476 } }, "kaala": "nishita", "days": [ { "local_date": "1957-03-29", "window": { "start": { "local": "1957-03-30T00:29:57+08:00", "utc": "1957-03-29T16:29:57Z", "ms": -402651003208.38385 }, "end": { "local": "1957-03-30T01:17:57+08:00", "utc": "1957-03-29T17:17:57Z", "ms": -402648123208.38385 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-03-30", "window": { "start": { "local": "1957-03-31T00:29:39+08:00", "utc": "1957-03-30T16:29:39Z", "ms": -402564621221.7582 }, "end": { "local": "1957-03-31T01:17:39+08:00", "utc": "1957-03-30T17:17:39Z", "ms": -402561741221.7582 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:40 on Fri 29 Mar to 15:40 on Sat 30 Mar.", "fact": "1957-03-29T05:40:17Z → 1957-03-30T07:39:50Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:30–01:18 on the 29th, 00:30–01:18 on the 30th.", "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 29th and 0 of 48 on the 30th.", "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 31789 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Friday 29 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-03-29", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Friday 29 March. Caturdaśī runs from 13:40 on Fri 29 Mar to 15:40 on Sat 30 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-03-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14452, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1957-03-31T17:18:56+08:00", "utc": "1957-03-31T09:18:56Z", "ms": -402504064057.75446 }, "end": { "local": "1957-04-01T18:35:44+08:00", "utc": "1957-04-01T10:35:44Z", "ms": -402413055838.2122 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-03-31T17:18:56+08:00", "utc": "1957-03-31T09:18:56Z", "ms": -402504064057.75446 }, "end": { "local": "1957-04-01T18:35:44+08:00", "utc": "1957-04-01T10:35:44Z", "ms": -402413055838.2122 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-03-31", "window": { "start": { "local": "1957-03-31T12:30:04+08:00", "utc": "1957-03-31T04:30:04Z", "ms": -402521396480.9696 }, "end": { "local": "1957-03-31T13:18:04+08:00", "utc": "1957-03-31T05:18:04Z", "ms": -402518516480.9696 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-04-01", "window": { "start": { "local": "1957-04-01T12:29:46+08:00", "utc": "1957-04-01T04:29:46Z", "ms": -402435014432.25696 }, "end": { "local": "1957-04-01T13:17:46+08:00", "utc": "1957-04-01T05:17:46Z", "ms": -402432134432.25696 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 17:19 on Sun 31 Mar to 18:36 on Mon 1 Apr.", "fact": "1957-03-31T09:18:56Z → 1957-04-01T10:35:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 31st, 12:30–13:18 on the 1st.", "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 31st and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14452 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Qingyang, 1957: Monday 1 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": "1957-04-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-01", "confidence": "determinate" } ], "quote": "In Qingyang, Navarātrārambha (Caitra) (Chaitra Navratri) 1957 falls on Monday 1 April. Pratipadā runs from 17:19 on Sun 31 Mar to 18:36 on Mon 1 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22296, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1957-04-02T19:29:04+08:00", "utc": "1957-04-02T11:29:04Z", "ms": -402323455848.1577 }, "end": { "local": "1957-04-03T19:57:52+08:00", "utc": "1957-04-03T11:57:52Z", "ms": -402235327572.3899 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-02T19:29:04+08:00", "utc": "1957-04-02T11:29:04Z", "ms": -402323455848.1577 }, "end": { "local": "1957-04-03T19:57:52+08:00", "utc": "1957-04-03T11:57:52Z", "ms": -402235327572.3899 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-04-02", "window": { "start": { "local": "1957-04-02T12:29:28+08:00", "utc": "1957-04-02T04:29:28Z", "ms": -402348632286.2002 }, "end": { "local": "1957-04-02T13:17:28+08:00", "utc": "1957-04-02T05:17:28Z", "ms": -402345752286.2002 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-04-03", "window": { "start": { "local": "1957-04-03T12:29:10+08:00", "utc": "1957-04-03T04:29:10Z", "ms": -402262250027.29565 }, "end": { "local": "1957-04-03T13:17:10+08:00", "utc": "1957-04-03T05:17:10Z", "ms": -402259370027.29565 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 19:29 on Tue 2 Apr to 19:58 on Wed 3 Apr.", "fact": "1957-04-02T11:29:04Z → 1957-04-03T11:57:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 2nd, 12:29–13:17 on the 3rd.", "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 2nd and 48 of 48 on the 3rd.", "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 22296 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Qingyang, 1957: Wednesday 3 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": "1957-04-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-03", "confidence": "determinate" } ], "quote": "In Qingyang, Gaurī Tṛtīyā (Gangaur) 1957 falls on Wednesday 3 April. Tṛtīyā runs from 19:29 on Tue 2 Apr to 19:58 on Wed 3 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22296, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1957-04-02T19:29:04+08:00", "utc": "1957-04-02T11:29:04Z", "ms": -402323455848.1577 }, "end": { "local": "1957-04-03T19:57:52+08:00", "utc": "1957-04-03T11:57:52Z", "ms": -402235327572.3899 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-02T19:29:04+08:00", "utc": "1957-04-02T11:29:04Z", "ms": -402323455848.1577 }, "end": { "local": "1957-04-03T19:57:52+08:00", "utc": "1957-04-03T11:57:52Z", "ms": -402235327572.3899 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-04-02", "window": { "start": { "local": "1957-04-02T12:29:28+08:00", "utc": "1957-04-02T04:29:28Z", "ms": -402348632286.2002 }, "end": { "local": "1957-04-02T13:17:28+08:00", "utc": "1957-04-02T05:17:28Z", "ms": -402345752286.2002 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-04-03", "window": { "start": { "local": "1957-04-03T12:29:10+08:00", "utc": "1957-04-03T04:29:10Z", "ms": -402262250027.29565 }, "end": { "local": "1957-04-03T13:17:10+08:00", "utc": "1957-04-03T05:17:10Z", "ms": -402259370027.29565 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 19:29 on Tue 2 Apr to 19:58 on Wed 3 Apr.", "fact": "1957-04-02T11:29:04Z → 1957-04-03T11:57:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 2nd, 12:29–13:17 on the 3rd.", "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 2nd and 48 of 48 on the 3rd.", "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 22296 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Qingyang, 1957: Wednesday 3 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": "1957-04-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-03", "confidence": "determinate" } ], "quote": "In Qingyang, Saubhāgya Śayana Vrata 1957 falls on Wednesday 3 April. Tṛtīyā runs from 19:29 on Tue 2 Apr to 19:58 on Wed 3 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vinayaka-chaturthi?on=1957-04-04", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24042, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-04-03T19:57:52+08:00", "utc": "1957-04-03T11:57:52Z", "ms": -402235327572.3899 }, "end": { "local": "1957-04-04T20:00:55+08:00", "utc": "1957-04-04T12:00:55Z", "ms": -402148744801.60187 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-03T19:57:52+08:00", "utc": "1957-04-03T11:57:52Z", "ms": -402235327572.3899 }, "end": { "local": "1957-04-04T20:00:55+08:00", "utc": "1957-04-04T12:00:55Z", "ms": -402148744801.60187 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-04-03", "window": { "start": { "local": "1957-04-03T12:29:10+08:00", "utc": "1957-04-03T04:29:10Z", "ms": -402262250027.29565 }, "end": { "local": "1957-04-03T13:17:10+08:00", "utc": "1957-04-03T05:17:10Z", "ms": -402259370027.29565 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-04-04", "window": { "start": { "local": "1957-04-04T12:28:52+08:00", "utc": "1957-04-04T04:28:52Z", "ms": -402175867640.22424 }, "end": { "local": "1957-04-04T13:16:52+08:00", "utc": "1957-04-04T05:16:52Z", "ms": -402172987640.22424 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:58 on Wed 3 Apr to 20:01 on Thu 4 Apr.", "fact": "1957-04-03T11:57:52Z → 1957-04-04T12:00:55Z" }, { "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": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24042 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Thursday 4 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": "1957-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-04", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Thursday 4 April. Caturthī runs from 19:58 on Wed 3 Apr to 20:01 on Thu 4 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-04-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22817, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1957-04-04T20:00:55+08:00", "utc": "1957-04-04T12:00:55Z", "ms": -402148744801.60187 }, "end": { "local": "1957-04-05T19:36:52+08:00", "utc": "1957-04-05T11:36:52Z", "ms": -402063788349.02203 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-04T20:00:55+08:00", "utc": "1957-04-04T12:00:55Z", "ms": -402148744801.60187 }, "end": { "local": "1957-04-05T19:36:52+08:00", "utc": "1957-04-05T11:36:52Z", "ms": -402063788349.02203 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-04-04", "window": { "start": { "local": "1957-04-04T12:28:52+08:00", "utc": "1957-04-04T04:28:52Z", "ms": -402175867640.22424 }, "end": { "local": "1957-04-04T13:16:52+08:00", "utc": "1957-04-04T05:16:52Z", "ms": -402172987640.22424 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-04-05", "window": { "start": { "local": "1957-04-05T12:28:35+08:00", "utc": "1957-04-05T04:28:35Z", "ms": -402089485109.7008 }, "end": { "local": "1957-04-05T13:16:35+08:00", "utc": "1957-04-05T05:16:35Z", "ms": -402086605109.7008 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 20:01 on Thu 4 Apr to 19:37 on Fri 5 Apr.", "fact": "1957-04-04T12:00:55Z → 1957-04-05T11:36:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 4th, 12:29–13:17 on the 5th.", "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 4th and 48 of 48 on the 5th.", "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 22817 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Qingyang, 1957: Friday 5 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": "1957-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-05", "confidence": "determinate" } ], "quote": "In Qingyang, Lakṣmī Pañcamī 1957 falls on Friday 5 April. Pañcamī runs from 20:01 on Thu 4 Apr to 19:37 on Fri 5 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8340, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1957-04-07T17:23:36+08:00", "utc": "1957-04-07T09:23:36Z", "ms": -401898983813.8903 }, "end": { "local": "1957-04-08T15:34:43+08:00", "utc": "1957-04-08T07:34:43Z", "ms": -401819116765.38525 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-07T17:23:36+08:00", "utc": "1957-04-07T09:23:36Z", "ms": -401898983813.8903 }, "end": { "local": "1957-04-08T15:34:43+08:00", "utc": "1957-04-08T07:34:43Z", "ms": -401819116765.38525 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-04-07", "window": { "start": { "local": "1957-04-07T12:28:00+08:00", "utc": "1957-04-07T04:28:00Z", "ms": -401916719556.27783 }, "end": { "local": "1957-04-07T13:16:00+08:00", "utc": "1957-04-07T05:16:00Z", "ms": -401913839556.27783 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-04-08", "window": { "start": { "local": "1957-04-08T12:27:43+08:00", "utc": "1957-04-08T04:27:43Z", "ms": -401830336501.3502 }, "end": { "local": "1957-04-08T13:15:43+08:00", "utc": "1957-04-08T05:15:43Z", "ms": -401827456501.3502 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:24 on Sun 7 Apr to 15:35 on Mon 8 Apr.", "fact": "1957-04-07T09:23:36Z → 1957-04-08T07:34:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 7th, 12:28–13:16 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8340 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Qingyang, 1957: Monday 8 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": "1957-04-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-08", "confidence": "determinate" } ], "quote": "In Qingyang, Bhavānī Utpatti 1957 falls on Monday 8 April. Aṣṭamī runs from 17:24 on Sun 7 Apr to 15:35 on Mon 8 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-09", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 284, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1957-04-08T15:34:43+08:00", "utc": "1957-04-08T07:34:43Z", "ms": -401819116765.38525 }, "end": { "local": "1957-04-09T13:20:11+08:00", "utc": "1957-04-09T05:20:11Z", "ms": -401740789021.9867 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-08T15:34:43+08:00", "utc": "1957-04-08T07:34:43Z", "ms": -401819116765.38525 }, "end": { "local": "1957-04-09T13:20:11+08:00", "utc": "1957-04-09T05:20:11Z", "ms": -401740789021.9867 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-04-08", "window": { "start": { "local": "1957-04-08T12:27:43+08:00", "utc": "1957-04-08T04:27:43Z", "ms": -401830336501.3502 }, "end": { "local": "1957-04-08T13:15:43+08:00", "utc": "1957-04-08T05:15:43Z", "ms": -401827456501.3502 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-04-09", "window": { "start": { "local": "1957-04-09T12:27:27+08:00", "utc": "1957-04-09T04:27:27Z", "ms": -401743953238.5154 }, "end": { "local": "1957-04-09T13:15:27+08:00", "utc": "1957-04-09T05:15:27Z", "ms": -401741073238.5154 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 15:35 on Mon 8 Apr to 13:20 on Tue 9 Apr.", "fact": "1957-04-08T07:34:43Z → 1957-04-09T05:20:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 8th, 12:27–13:15 on the 9th.", "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 8th and 48 of 48 on the 9th.", "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 284 s < 300 s" }, { "step": "ruling", "text": "Rāma Navamī, Qingyang, 1957: Tuesday 9 April.", "fact": "confidence: boundary (margin)" } ], "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": "1957-04-09", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-09", "confidence": "determinate" } ], "quote": "In Qingyang, Rāma Navamī 1957 falls on Tuesday 9 April. Navamī runs from 15:35 on Mon 8 Apr to 13:20 on Tue 9 Apr and covers all of madhyāhna that midday. It is 4 min 44 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-04-11", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5289, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-04-10T10:43:54+08:00", "utc": "1957-04-10T02:43:54Z", "ms": -401663765628.04846 }, "end": { "local": "1957-04-11T07:51:23+08:00", "utc": "1957-04-10T23:51:23Z", "ms": -401587716804.58496 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-10T10:43:54+08:00", "utc": "1957-04-10T02:43:54Z", "ms": -401663765628.04846 }, "end": { "local": "1957-04-11T07:51:23+08:00", "utc": "1957-04-10T23:51:23Z", "ms": -401587716804.58496 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-04-10", "window": { "start": { "local": "1957-04-10T06:24:37+08:00", "utc": "1957-04-09T22:24:37Z", "ms": -401679323497.72925 }, "end": { "local": "1957-04-10T06:24:37+08:00", "utc": "1957-04-09T22:24:37Z", "ms": -401679323497.72925 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-04-11", "window": { "start": { "local": "1957-04-11T06:23:15+08:00", "utc": "1957-04-10T22:23:15Z", "ms": -401593005417.02704 }, "end": { "local": "1957-04-11T06:23:15+08:00", "utc": "1957-04-10T22:23:15Z", "ms": -401593005417.02704 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:44 on Wed 10 Apr to 07:51 on Thu 11 Apr.", "fact": "1957-04-10T02:43:54Z → 1957-04-10T23:51:23Z" }, { "step": "kaala", "text": "Sunrise is at 06:25 on the 10th and 06:23 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 10th and is on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5289 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Qingyang, 1957: Thursday 11 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": "1957-04-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-11", "confidence": "determinate" } ], "quote": "In Qingyang, Kāmadā Ekādaśī 1957 falls on Thursday 11 April. Ekādaśī runs from 10:44 on Wed 10 Apr to 07:51 on Thu 11 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-04-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27429, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-04-12T04:49:29+08:00", "utc": "1957-04-11T20:49:29Z", "ms": -401512231368.7497 }, "end": { "local": "1957-04-13T01:46:04+08:00", "utc": "1957-04-12T17:46:04Z", "ms": -401436835669.5967 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-12T04:49:29+08:00", "utc": "1957-04-11T20:49:29Z", "ms": -401512231368.7497 }, "end": { "local": "1957-04-13T01:46:04+08:00", "utc": "1957-04-12T17:46:04Z", "ms": -401436835669.5967 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-04-12", "window": { "start": { "local": "1957-04-12T12:26:38+08:00", "utc": "1957-04-12T04:26:38Z", "ms": -401484802018.729 }, "end": { "local": "1957-04-12T13:14:38+08:00", "utc": "1957-04-12T05:14:38Z", "ms": -401481922018.729 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-04-13", "window": { "start": { "local": "1957-04-13T12:26:22+08:00", "utc": "1957-04-13T04:26:22Z", "ms": -401398417735.9334 }, "end": { "local": "1957-04-13T13:14:22+08:00", "utc": "1957-04-13T05:14:22Z", "ms": -401395537735.9334 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:49 on Fri 12 Apr to 01:46 on Sat 13 Apr.", "fact": "1957-04-11T20:49:29Z → 1957-04-12T17:46:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 12th, 12:26–13:14 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī 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: purvaviddha → only-day · margin 27429 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Qingyang, 1957: Friday 12 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": "1957-04-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-12", "confidence": "determinate" } ], "quote": "In Qingyang, Anaṅga Trayodaśī 1957 falls on Friday 12 April. Trayodaśī runs from 04:49 on Fri 12 Apr to 01:46 on Sat 13 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/pradosha-vrata?on=1957-04-12", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17912, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-04-12T04:49:29+08:00", "utc": "1957-04-11T20:49:29Z", "ms": -401512231368.7497 }, "end": { "local": "1957-04-13T01:46:04+08:00", "utc": "1957-04-12T17:46:04Z", "ms": -401436835669.5967 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-12T04:49:29+08:00", "utc": "1957-04-11T20:49:29Z", "ms": -401512231368.7497 }, "end": { "local": "1957-04-13T01:46:04+08:00", "utc": "1957-04-12T17:46:04Z", "ms": -401436835669.5967 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-04-11", "window": { "start": { "local": "1957-04-11T19:18:33+08:00", "utc": "1957-04-11T11:18:33Z", "ms": -401546486616.0629 }, "end": { "local": "1957-04-11T20:47:00+08:00", "utc": "1957-04-11T12:47:00Z", "ms": -401541179978.6669 } }, "covered_min": 0, "window_min": 88, "qualifies": false }, { "local_date": "1957-04-12", "window": { "start": { "local": "1957-04-12T19:19:23+08:00", "utc": "1957-04-12T11:19:23Z", "ms": -401460037201.8653 }, "end": { "local": "1957-04-12T20:47:32+08:00", "utc": "1957-04-12T12:47:32Z", "ms": -401454747937.8842 } }, "covered_min": 88, "window_min": 88, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:49 on Fri 12 Apr to 01:46 on Sat 13 Apr.", "fact": "1957-04-11T20:49:29Z → 1957-04-12T17:46:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:19–20:47 on the 11th, 19:19–20:48 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 88 minutes on the 11th and 88 of 88 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17912 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Friday 12 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": "1957-04-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-12", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Friday 12 April. Trayodaśī runs from 04:49 on Fri 12 Apr to 01:46 on Sat 13 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-04-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39668, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1957-04-13T19:18:04+08:00", "utc": "1957-04-13T11:18:04Z", "ms": -401373715657.83325 }, "end": { "local": "1957-05-14T16:17:36+08:00", "utc": "1957-05-14T08:17:36Z", "ms": -398706143888.71106 } }, "span": { "of": "transit", "start": { "local": "1957-04-13T19:18:04+08:00", "utc": "1957-04-13T11:18:04Z", "ms": -401373715657.83325 }, "end": { "local": "1957-04-13T19:18:04+08:00", "utc": "1957-04-13T11:18:04Z", "ms": -401373715657.83325 } }, "kaala": "day", "days": [ { "local_date": "1957-04-13", "window": { "start": { "local": "1957-04-13T06:20:32+08:00", "utc": "1957-04-12T22:20:32Z", "ms": -401420367722.0073 }, "end": { "local": "1957-04-14T06:19:12+08:00", "utc": "1957-04-13T22:19:12Z", "ms": -401334048044.3456 } }, "covered_min": 1, "window_min": 1439, "qualifies": true }, { "local_date": "1957-04-14", "window": { "start": { "local": "1957-04-14T06:19:12+08:00", "utc": "1957-04-13T22:19:12Z", "ms": -401334048044.3456 }, "end": { "local": "1957-04-15T06:17:52+08:00", "utc": "1957-04-14T22:17:52Z", "ms": -401247727770.3369 } }, "covered_min": 0, "window_min": 1439, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 19:18 on Sat 13 Apr.", "fact": "1957-04-13T11:18:04Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:21 on the 13th, and from 06:19 on the 14th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 13th, not the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 39668 s" }, { "step": "ruling", "text": "Vaiśākhī, Qingyang, 1957: Saturday 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": "1957-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1957-04-13", "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": "1957-04-13", "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 1957 falls on Saturday 13 April. The Sun enters Meṣa at 19:18 on Sat 13 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34522, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-04-13T01:46:04+08:00", "utc": "1957-04-12T17:46:04Z", "ms": -401436835669.5967 }, "end": { "local": "1957-04-13T22:49:45+08:00", "utc": "1957-04-13T14:49:45Z", "ms": -401361015465.30725 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-13T01:46:04+08:00", "utc": "1957-04-12T17:46:04Z", "ms": -401436835669.5967 }, "end": { "local": "1957-04-13T22:49:45+08:00", "utc": "1957-04-13T14:49:45Z", "ms": -401361015465.30725 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-04-12", "window": { "start": { "local": "1957-04-12T12:26:38+08:00", "utc": "1957-04-12T04:26:38Z", "ms": -401484802018.729 }, "end": { "local": "1957-04-12T13:14:38+08:00", "utc": "1957-04-12T05:14:38Z", "ms": -401481922018.729 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-04-13", "window": { "start": { "local": "1957-04-13T12:26:22+08:00", "utc": "1957-04-13T04:26:22Z", "ms": -401398417735.9334 }, "end": { "local": "1957-04-13T13:14:22+08:00", "utc": "1957-04-13T05:14:22Z", "ms": -401395537735.9334 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:46 on Sat 13 Apr to 22:50 on Sat 13 Apr.", "fact": "1957-04-12T17:46:04Z → 1957-04-13T14:49:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 12th, 12:26–13:14 on the 13th.", "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 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34522 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Qingyang, 1957: Saturday 13 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": "1957-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-13", "confidence": "determinate" } ], "quote": "In Qingyang, Viṣṇudamanaka Caturdaśī 1957 falls on Saturday 13 April. Caturdaśī runs from 01:46 on Sat 13 Apr to 22:50 on Sat 13 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24913, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-04-13T22:49:45+08:00", "utc": "1957-04-13T14:49:45Z", "ms": -401361015465.30725 }, "end": { "local": "1957-04-14T20:09:20+08:00", "utc": "1957-04-14T12:09:20Z", "ms": -401284240027.8212 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1957-04-13T22:49:45+08:00", "utc": "1957-04-13T14:49:45Z", "ms": -401361015465.30725 }, "end": { "local": "1957-04-14T20:09:20+08:00", "utc": "1957-04-14T12:09:20Z", "ms": -401284240027.8212 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-04-13", "window": { "start": { "local": "1957-04-13T12:26:22+08:00", "utc": "1957-04-13T04:26:22Z", "ms": -401398417735.9334 }, "end": { "local": "1957-04-13T13:14:22+08:00", "utc": "1957-04-13T05:14:22Z", "ms": -401395537735.9334 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-04-14", "window": { "start": { "local": "1957-04-14T12:26:07+08:00", "utc": "1957-04-14T04:26:07Z", "ms": -401312033147.35516 }, "end": { "local": "1957-04-14T13:14:07+08:00", "utc": "1957-04-14T05:14:07Z", "ms": -401309153147.35516 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:50 on Sat 13 Apr to 20:09 on Sun 14 Apr.", "fact": "1957-04-13T14:49:45Z → 1957-04-14T12:09:20Z" }, { "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": "Pūrṇimā 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 24913 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Qingyang, 1957: Sunday 14 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": "1957-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-14", "confidence": "determinate" } ], "quote": "In Qingyang, Caitrī Pūrṇimā 1957 falls on Sunday 14 April. Pūrṇimā runs from 22:50 on Sat 13 Apr to 20:09 on Sun 14 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-04-17", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26812, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-04-17T15:05:58+08:00", "utc": "1957-04-17T07:05:58Z", "ms": -401043241799.80963 }, "end": { "local": "1957-04-18T14:45:10+08:00", "utc": "1957-04-18T06:45:10Z", "ms": -400958089552.9954 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-04-17T15:05:58+08:00", "utc": "1957-04-17T07:05:58Z", "ms": -401043241799.80963 }, "end": { "local": "1957-04-18T14:45:10+08:00", "utc": "1957-04-18T06:45:10Z", "ms": -400958089552.9954 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-04-17", "window": { "start": { "local": "1957-04-17T22:32:50+08:00", "utc": "1957-04-17T14:32:50Z", "ms": -401016430189.831 }, "end": { "local": "1957-04-17T22:32:50+08:00", "utc": "1957-04-17T14:32:50Z", "ms": -401016430189.831 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-04-18", "window": { "start": { "local": "1957-04-18T23:28:01+08:00", "utc": "1957-04-18T15:28:01Z", "ms": -400926718825.2319 }, "end": { "local": "1957-04-18T23:28:01+08:00", "utc": "1957-04-18T15:28:01Z", "ms": -400926718825.2319 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:06 on Wed 17 Apr to 14:45 on Thu 18 Apr.", "fact": "1957-04-17T07:05:58Z → 1957-04-18T06:45:10Z" }, { "step": "kaala", "text": "Moonrise is at 22:33 on the 17th and 23:28 on the 18th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 17th and is not on the 18th.", "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 26812 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Wednesday 17 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": "1957-04-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-17", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Wednesday 17 April. Caturthī runs from 15:06 on Wed 17 Apr to 14:45 on Thu 18 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-04-17", "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/1957/ekadashi?on=1957-04-25", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10489, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-04-25T00:55:28+08:00", "utc": "1957-04-24T16:55:28Z", "ms": -400403071646.5962 }, "end": { "local": "1957-04-26T03:09:15+08:00", "utc": "1957-04-25T19:09:15Z", "ms": -400308645255.4073 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-04-25T00:55:28+08:00", "utc": "1957-04-24T16:55:28Z", "ms": -400403071646.5962 }, "end": { "local": "1957-04-26T03:09:15+08:00", "utc": "1957-04-25T19:09:15Z", "ms": -400308645255.4073 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-04-25", "window": { "start": { "local": "1957-04-25T06:05:15+08:00", "utc": "1957-04-24T22:05:15Z", "ms": -400384485245.5557 }, "end": { "local": "1957-04-25T06:05:15+08:00", "utc": "1957-04-24T22:05:15Z", "ms": -400384485245.5557 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-04-26", "window": { "start": { "local": "1957-04-26T06:04:04+08:00", "utc": "1957-04-25T22:04:04Z", "ms": -400298156349.8313 }, "end": { "local": "1957-04-26T06:04:04+08:00", "utc": "1957-04-25T22:04:04Z", "ms": -400298156349.8313 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:55 on Thu 25 Apr to 03:09 on Fri 26 Apr.", "fact": "1957-04-24T16:55:28Z → 1957-04-25T19:09:15Z" }, { "step": "kaala", "text": "Sunrise is at 06:05 on the 25th and 06:04 on the 26th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 25th and is not on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10489 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Qingyang, 1957: Thursday 25 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-25", "confidence": "determinate" } ], "quote": "In Qingyang, Varūthinī Ekādaśī 1957 falls on Thursday 25 April. Ekādaśī runs from 00:55 on Thu 25 Apr to 03:09 on Fri 26 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-04-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-04-27", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29255, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-04-27T05:02:51+08:00", "utc": "1957-04-26T21:02:51Z", "ms": -400215429286.5439 }, "end": { "local": "1957-04-28T06:29:55+08:00", "utc": "1957-04-27T22:29:55Z", "ms": -400123805158.5773 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-04-27T05:02:51+08:00", "utc": "1957-04-26T21:02:51Z", "ms": -400215429286.5439 }, "end": { "local": "1957-04-28T06:29:55+08:00", "utc": "1957-04-27T22:29:55Z", "ms": -400123805158.5773 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-04-26", "window": { "start": { "local": "1957-04-26T19:31:01+08:00", "utc": "1957-04-26T11:31:01Z", "ms": -400249738921.42847 }, "end": { "local": "1957-04-26T20:55:16+08:00", "utc": "1957-04-26T12:55:16Z", "ms": -400244683931.4095 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "1957-04-27", "window": { "start": { "local": "1957-04-27T19:31:51+08:00", "utc": "1957-04-27T11:31:51Z", "ms": -400163288587.28033 }, "end": { "local": "1957-04-27T20:55:50+08:00", "utc": "1957-04-27T12:55:50Z", "ms": -400158249530.10803 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:03 on Sat 27 Apr to 06:30 on Sun 28 Apr.", "fact": "1957-04-26T21:02:51Z → 1957-04-27T22:29:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:31–20:55 on the 26th, 19:32–20:56 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 84 minutes on the 26th and 84 of 84 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29255 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Saturday 27 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-04-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-27", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Saturday 27 April. Trayodaśī runs from 05:03 on Sat 27 Apr to 06:30 on Sun 28 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-04-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-04-28", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-04-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19147, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-04-28T06:29:55+08:00", "utc": "1957-04-27T22:29:55Z", "ms": -400123805158.5773 }, "end": { "local": "1957-04-29T07:27:09+08:00", "utc": "1957-04-28T23:27:09Z", "ms": -400033971191.14056 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-04-28T06:29:55+08:00", "utc": "1957-04-27T22:29:55Z", "ms": -400123805158.5773 }, "end": { "local": "1957-04-29T07:27:09+08:00", "utc": "1957-04-28T23:27:09Z", "ms": -400033971191.14056 } }, "kaala": "nishita", "days": [ { "local_date": "1957-04-27", "window": { "start": { "local": "1957-04-28T00:22:48+08:00", "utc": "1957-04-27T16:22:48Z", "ms": -400145832122.88416 }, "end": { "local": "1957-04-28T01:10:48+08:00", "utc": "1957-04-27T17:10:48Z", "ms": -400142952122.88416 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-04-28", "window": { "start": { "local": "1957-04-29T00:22:39+08:00", "utc": "1957-04-28T16:22:39Z", "ms": -400059441019.4942 }, "end": { "local": "1957-04-29T01:10:39+08:00", "utc": "1957-04-28T17:10:39Z", "ms": -400056561019.4942 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:30 on Sun 28 Apr to 07:27 on Mon 29 Apr.", "fact": "1957-04-27T22:29:55Z → 1957-04-28T23:27:09Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:23–01:11 on the 27th, 00:23–01:11 on the 28th.", "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 27th and 48 of 48 on the 28th.", "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 19147 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Sunday 28 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": "1957-04-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-04-28", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Sunday 28 April. Caturdaśī runs from 06:30 on Sun 28 Apr to 07:27 on Mon 29 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-04-28", "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/1957/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34002, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1957-05-02T07:20:29+08:00", "utc": "1957-05-01T23:20:29Z", "ms": -399775171138.6664 }, "end": { "local": "1957-05-03T06:25:26+08:00", "utc": "1957-05-02T22:25:26Z", "ms": -399692073710.0338 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-02T07:20:29+08:00", "utc": "1957-05-01T23:20:29Z", "ms": -399775171138.6664 }, "end": { "local": "1957-05-03T06:25:26+08:00", "utc": "1957-05-02T22:25:26Z", "ms": -399692073710.0338 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-05-01", "window": { "start": { "local": "1957-05-01T19:35:13+08:00", "utc": "1957-05-01T11:35:13Z", "ms": -399817487140.93414 }, "end": { "local": "1957-05-01T20:58:10+08:00", "utc": "1957-05-01T12:58:10Z", "ms": -399812510450.1994 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "1957-05-02", "window": { "start": { "local": "1957-05-02T19:36:03+08:00", "utc": "1957-05-02T11:36:03Z", "ms": -399731036828.7816 }, "end": { "local": "1957-05-02T20:58:45+08:00", "utc": "1957-05-02T12:58:45Z", "ms": -399726075362.0317 } }, "covered_min": 83, "window_min": 83, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 07:20 on Thu 2 May to 06:25 on Fri 3 May.", "fact": "1957-05-01T23:20:29Z → 1957-05-02T22:25:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:35–20:58 on the 1st, 19:36–20:59 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 0 of 83 minutes on the 1st and 83 of 83 on the 2nd.", "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 34002 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Qingyang, 1957: Thursday 2 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": "1957-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-02", "confidence": "determinate" } ], "quote": "In Qingyang, Paraśurāma Jayantī 1957 falls on Thursday 2 May. Tṛtīyā runs from 07:20 on Thu 2 May to 06:25 on Fri 3 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1752, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1957-05-02T07:20:29+08:00", "utc": "1957-05-01T23:20:29Z", "ms": -399775171138.6664 }, "end": { "local": "1957-05-03T06:25:26+08:00", "utc": "1957-05-02T22:25:26Z", "ms": -399692073710.0338 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-02T07:20:29+08:00", "utc": "1957-05-01T23:20:29Z", "ms": -399775171138.6664 }, "end": { "local": "1957-05-03T06:25:26+08:00", "utc": "1957-05-02T22:25:26Z", "ms": -399692073710.0338 } }, "kaala": "purvahna", "days": [ { "local_date": "1957-05-02", "window": { "start": { "local": "1957-05-02T05:57:18+08:00", "utc": "1957-05-01T21:57:18Z", "ms": -399780161960.42346 }, "end": { "local": "1957-05-02T10:30:13+08:00", "utc": "1957-05-02T02:30:13Z", "ms": -399763786916.54285 } }, "covered_min": 190, "window_min": 273, "qualifies": true }, { "local_date": "1957-05-03", "window": { "start": { "local": "1957-05-03T05:56:14+08:00", "utc": "1957-05-02T21:56:14Z", "ms": -399693825828.15717 }, "end": { "local": "1957-05-03T10:29:47+08:00", "utc": "1957-05-03T02:29:47Z", "ms": -399677412742.7524 } }, "covered_min": 29, "window_min": 274, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 07:20 on Thu 2 May to 06:25 on Fri 3 May.", "fact": "1957-05-01T23:20:29Z → 1957-05-02T22:25:26Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:57–10:30 on the 2nd, 05:56–10:30 on the 3rd.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 190 of 273 minutes on the 2nd and 29 of 274 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both forenoons qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 1752 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Qingyang, 1957: Friday 3 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": "1957-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-03", "confidence": "determinate" } ], "quote": "In Qingyang, Akṣaya Tṛtīyā 1957 falls on Friday 3 May. Tṛtīyā runs from 07:20 on Thu 2 May to 06:25 on Fri 3 May and covers 29 of 274 minutes of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 190 minutes; by the rule the second forenoon is taken.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vinayaka-chaturthi?on=1957-05-03", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21428, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-05-03T06:25:26+08:00", "utc": "1957-05-02T22:25:26Z", "ms": -399692073710.0338 }, "end": { "local": "1957-05-04T05:08:36+08:00", "utc": "1957-05-03T21:08:36Z", "ms": -399610284227.00146 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-03T06:25:26+08:00", "utc": "1957-05-02T22:25:26Z", "ms": -399692073710.0338 }, "end": { "local": "1957-05-04T05:08:36+08:00", "utc": "1957-05-03T21:08:36Z", "ms": -399610284227.00146 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-05-03", "window": { "start": { "local": "1957-05-03T12:22:34+08:00", "utc": "1957-05-03T04:22:34Z", "ms": -399670646200.05005 }, "end": { "local": "1957-05-03T13:10:34+08:00", "utc": "1957-05-03T05:10:34Z", "ms": -399667766200.05005 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-05-04", "window": { "start": { "local": "1957-05-04T12:22:28+08:00", "utc": "1957-05-04T04:22:28Z", "ms": -399584252477.7085 }, "end": { "local": "1957-05-04T13:10:28+08:00", "utc": "1957-05-04T05:10:28Z", "ms": -399581372477.7085 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:25 on Fri 3 May to 05:09 on Sat 4 May.", "fact": "1957-05-02T22:25:26Z → 1957-05-03T21:08:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 3rd, 12:22–13:10 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "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 21428 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Friday 3 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": "1957-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-03", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Friday 3 May. Caturthī runs from 06:25 on Fri 3 May to 05:09 on Sat 4 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-05-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26032, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1957-05-04T05:08:36+08:00", "utc": "1957-05-03T21:08:36Z", "ms": -399610284227.00146 }, "end": { "local": "1957-05-05T03:32:50+08:00", "utc": "1957-05-04T19:32:50Z", "ms": -399529629507.9946 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-04T05:08:36+08:00", "utc": "1957-05-03T21:08:36Z", "ms": -399610284227.00146 }, "end": { "local": "1957-05-05T03:32:50+08:00", "utc": "1957-05-04T19:32:50Z", "ms": -399529629507.9946 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-05-04", "window": { "start": { "local": "1957-05-04T12:22:28+08:00", "utc": "1957-05-04T04:22:28Z", "ms": -399584252477.7085 }, "end": { "local": "1957-05-04T13:10:28+08:00", "utc": "1957-05-04T05:10:28Z", "ms": -399581372477.7085 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-05-05", "window": { "start": { "local": "1957-05-05T12:22:22+08:00", "utc": "1957-05-05T04:22:22Z", "ms": -399497858225.71924 }, "end": { "local": "1957-05-05T13:10:22+08:00", "utc": "1957-05-05T05:10:22Z", "ms": -399494978225.71924 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 05:09 on Sat 4 May to 03:33 on Sun 5 May.", "fact": "1957-05-03T21:08:36Z → 1957-05-04T19:32:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 4th, 12:22–13:10 on the 5th.", "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 4th and 0 of 48 on the 5th.", "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 26032 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Qingyang, 1957: Saturday 4 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": "1957-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-04", "confidence": "determinate" } ], "quote": "In Qingyang, Śaṅkara Jayantī 1957 falls on Saturday 4 May. Pañcamī runs from 05:09 on Sat 4 May to 03:33 on Sun 5 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37543, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1957-05-06T01:41:01+08:00", "utc": "1957-05-05T17:41:01Z", "ms": -399449939065.566 }, "end": { "local": "1957-05-06T23:35:59+08:00", "utc": "1957-05-06T15:35:59Z", "ms": -399371040603.0126 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-06T01:41:01+08:00", "utc": "1957-05-05T17:41:01Z", "ms": -399449939065.566 }, "end": { "local": "1957-05-06T23:35:59+08:00", "utc": "1957-05-06T15:35:59Z", "ms": -399371040603.0126 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-05-05", "window": { "start": { "local": "1957-05-05T12:22:22+08:00", "utc": "1957-05-05T04:22:22Z", "ms": -399497858225.71924 }, "end": { "local": "1957-05-05T13:10:22+08:00", "utc": "1957-05-05T05:10:22Z", "ms": -399494978225.71924 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-05-06", "window": { "start": { "local": "1957-05-06T12:22:17+08:00", "utc": "1957-05-06T04:22:17Z", "ms": -399411463442.09265 }, "end": { "local": "1957-05-06T13:10:17+08:00", "utc": "1957-05-06T05:10:17Z", "ms": -399408583442.09265 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 01:41 on Mon 6 May to 23:36 on Mon 6 May.", "fact": "1957-05-05T17:41:01Z → 1957-05-06T15:35:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 5th, 12:22–13:10 on the 6th.", "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 5th and 48 of 48 on the 6th.", "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 37543 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Qingyang, 1957: Monday 6 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": "1957-05-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-06", "confidence": "determinate" } ], "quote": "In Qingyang, Gaṅgotpatti (Ganga Saptami) 1957 falls on Monday 6 May. Saptamī runs from 01:41 on Mon 6 May to 23:36 on Mon 6 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-05-10", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30058, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-05-09T16:33:52+08:00", "utc": "1957-05-09T08:33:52Z", "ms": -399137167789.6974 }, "end": { "local": "1957-05-10T14:10:18+08:00", "utc": "1957-05-10T06:10:18Z", "ms": -399059382021.8728 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-09T16:33:52+08:00", "utc": "1957-05-09T08:33:52Z", "ms": -399137167789.6974 }, "end": { "local": "1957-05-10T14:10:18+08:00", "utc": "1957-05-10T06:10:18Z", "ms": -399059382021.8728 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-05-09", "window": { "start": { "local": "1957-05-09T05:50:16+08:00", "utc": "1957-05-08T21:50:16Z", "ms": -399175784445.3258 }, "end": { "local": "1957-05-09T05:50:16+08:00", "utc": "1957-05-08T21:50:16Z", "ms": -399175784445.3258 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-05-10", "window": { "start": { "local": "1957-05-10T05:49:20+08:00", "utc": "1957-05-09T21:49:20Z", "ms": -399089439883.5588 }, "end": { "local": "1957-05-10T05:49:20+08:00", "utc": "1957-05-09T21:49:20Z", "ms": -399089439883.5588 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:34 on Thu 9 May to 14:10 on Fri 10 May.", "fact": "1957-05-09T08:33:52Z → 1957-05-10T06:10:18Z" }, { "step": "kaala", "text": "Sunrise is at 05:50 on the 9th and 05:49 on the 10th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 9th and is on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30058 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Qingyang, 1957: Friday 10 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": "1957-05-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-10", "confidence": "determinate" } ], "quote": "In Qingyang, Mohinī Ekādaśī 1957 falls on Friday 10 May. Ekādaśī runs from 16:34 on Thu 9 May to 14:10 on Fri 10 May and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-05-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1737, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1957-05-10T14:10:18+08:00", "utc": "1957-05-10T06:10:18Z", "ms": -399059382021.8728 }, "end": { "local": "1957-05-11T11:53:01+08:00", "utc": "1957-05-11T03:53:01Z", "ms": -398981218689.298 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-10T14:10:18+08:00", "utc": "1957-05-10T06:10:18Z", "ms": -399059382021.8728 }, "end": { "local": "1957-05-11T11:53:01+08:00", "utc": "1957-05-11T03:53:01Z", "ms": -398981218689.298 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-05-10", "window": { "start": { "local": "1957-05-10T12:22:01+08:00", "utc": "1957-05-10T04:22:01Z", "ms": -399065878935.9703 }, "end": { "local": "1957-05-10T13:10:01+08:00", "utc": "1957-05-10T05:10:01Z", "ms": -399062998935.9703 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-05-11", "window": { "start": { "local": "1957-05-11T12:21:59+08:00", "utc": "1957-05-11T04:21:59Z", "ms": -398979481448.1371 }, "end": { "local": "1957-05-11T13:09:59+08:00", "utc": "1957-05-11T05:09:59Z", "ms": -398976601448.1371 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:10 on Fri 10 May to 11:53 on Sat 11 May.", "fact": "1957-05-10T06:10:18Z → 1957-05-11T03:53:01Z" }, { "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": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 0 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 1737 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Qingyang, 1957: Saturday 11 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": "1957-05-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-11", "confidence": "boundary" } ], "quote": "In Qingyang, Paraśurāma Dvādaśī 1957 falls on Saturday 11 May. Dvādaśī runs from 14:10 on Fri 10 May to 11:53 on Sat 11 May, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1737, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1957-05-10T14:10:18+08:00", "utc": "1957-05-10T06:10:18Z", "ms": -399059382021.8728 }, "end": { "local": "1957-05-11T11:53:01+08:00", "utc": "1957-05-11T03:53:01Z", "ms": -398981218689.298 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-10T14:10:18+08:00", "utc": "1957-05-10T06:10:18Z", "ms": -399059382021.8728 }, "end": { "local": "1957-05-11T11:53:01+08:00", "utc": "1957-05-11T03:53:01Z", "ms": -398981218689.298 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-05-10", "window": { "start": { "local": "1957-05-10T12:22:01+08:00", "utc": "1957-05-10T04:22:01Z", "ms": -399065878935.9703 }, "end": { "local": "1957-05-10T13:10:01+08:00", "utc": "1957-05-10T05:10:01Z", "ms": -399062998935.9703 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-05-11", "window": { "start": { "local": "1957-05-11T12:21:59+08:00", "utc": "1957-05-11T04:21:59Z", "ms": -398979481448.1371 }, "end": { "local": "1957-05-11T13:09:59+08:00", "utc": "1957-05-11T05:09:59Z", "ms": -398976601448.1371 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:10 on Fri 10 May to 11:53 on Sat 11 May.", "fact": "1957-05-10T06:10:18Z → 1957-05-11T03:53:01Z" }, { "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": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 0 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 1737 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Qingyang, 1957: Saturday 11 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": "1957-05-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-11", "confidence": "boundary" } ], "quote": "In Qingyang, Rukmiṇī Dvādaśī 1957 falls on Saturday 11 May. Dvādaśī runs from 14:10 on Fri 10 May to 11:53 on Sat 11 May, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/pradosha-vrata?on=1957-05-11", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28230, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-05-11T11:53:01+08:00", "utc": "1957-05-11T03:53:01Z", "ms": -398981218689.298 }, "end": { "local": "1957-05-12T09:47:26+08:00", "utc": "1957-05-12T01:47:26Z", "ms": -398902354255.3115 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-11T11:53:01+08:00", "utc": "1957-05-11T03:53:01Z", "ms": -398981218689.298 }, "end": { "local": "1957-05-12T09:47:26+08:00", "utc": "1957-05-12T01:47:26Z", "ms": -398902354255.3115 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-05-11", "window": { "start": { "local": "1957-05-11T19:43:31+08:00", "utc": "1957-05-11T11:43:31Z", "ms": -398952988882.2557 }, "end": { "local": "1957-05-11T21:04:03+08:00", "utc": "1957-05-11T13:04:03Z", "ms": -398948156606.007 } }, "covered_min": 81, "window_min": 81, "qualifies": true }, { "local_date": "1957-05-12", "window": { "start": { "local": "1957-05-12T19:44:20+08:00", "utc": "1957-05-12T11:44:20Z", "ms": -398866540004.0621 }, "end": { "local": "1957-05-12T21:04:39+08:00", "utc": "1957-05-12T13:04:39Z", "ms": -398861721102.9621 } }, "covered_min": 0, "window_min": 80, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:53 on Sat 11 May to 09:47 on Sun 12 May.", "fact": "1957-05-11T03:53:01Z → 1957-05-12T01:47:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:44–21:04 on the 11th, 19:44–21:05 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 81 of 81 minutes on the 11th and 0 of 80 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28230 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Saturday 11 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-05-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-11", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Saturday 11 May. Trayodaśī runs from 11:53 on Sat 11 May to 09:47 on Sun 12 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-05-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35814, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-05-12T09:47:26+08:00", "utc": "1957-05-12T01:47:26Z", "ms": -398902354255.3115 }, "end": { "local": "1957-05-13T07:59:15+08:00", "utc": "1957-05-12T23:59:15Z", "ms": -398822445498.8783 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-12T09:47:26+08:00", "utc": "1957-05-12T01:47:26Z", "ms": -398902354255.3115 }, "end": { "local": "1957-05-13T07:59:15+08:00", "utc": "1957-05-12T23:59:15Z", "ms": -398822445498.8783 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-05-12", "window": { "start": { "local": "1957-05-12T19:44:20+08:00", "utc": "1957-05-12T11:44:20Z", "ms": -398866540004.0621 }, "end": { "local": "1957-05-12T21:04:39+08:00", "utc": "1957-05-12T13:04:39Z", "ms": -398861721102.9621 } }, "covered_min": 80, "window_min": 80, "qualifies": true }, { "local_date": "1957-05-13", "window": { "start": { "local": "1957-05-13T19:45:09+08:00", "utc": "1957-05-13T11:45:09Z", "ms": -398780091372.353 }, "end": { "local": "1957-05-13T21:05:14+08:00", "utc": "1957-05-13T13:05:14Z", "ms": -398775285628.5107 } }, "covered_min": 0, "window_min": 80, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:47 on Sun 12 May to 07:59 on Mon 13 May.", "fact": "1957-05-12T01:47:26Z → 1957-05-12T23:59:15Z" }, { "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": "Caturdaśī 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 35814 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Qingyang, 1957: Sunday 12 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": "1957-05-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-12", "confidence": "determinate" } ], "quote": "In Qingyang, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1957 falls on Sunday 12 May. Caturdaśī runs from 09:47 on Sun 12 May to 07:59 on Mon 13 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15761, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-05-13T07:59:15+08:00", "utc": "1957-05-12T23:59:15Z", "ms": -398822445498.8783 }, "end": { "local": "1957-05-14T06:34:15+08:00", "utc": "1957-05-13T22:34:15Z", "ms": -398741145074.7684 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-13T07:59:15+08:00", "utc": "1957-05-12T23:59:15Z", "ms": -398822445498.8783 }, "end": { "local": "1957-05-14T06:34:15+08:00", "utc": "1957-05-13T22:34:15Z", "ms": -398741145074.7684 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-05-13", "window": { "start": { "local": "1957-05-13T12:21:55+08:00", "utc": "1957-05-13T04:21:55Z", "ms": -398806684809.08264 }, "end": { "local": "1957-05-13T13:09:55+08:00", "utc": "1957-05-13T05:09:55Z", "ms": -398803804809.08264 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-05-14", "window": { "start": { "local": "1957-05-14T12:21:54+08:00", "utc": "1957-05-14T04:21:54Z", "ms": -398720285650.1408 }, "end": { "local": "1957-05-14T13:09:54+08:00", "utc": "1957-05-14T05:09:54Z", "ms": -398717405650.1408 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:59 on Mon 13 May to 06:34 on Tue 14 May.", "fact": "1957-05-12T23:59:15Z → 1957-05-13T22:34:15Z" }, { "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": "Pūrṇimā 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 15761 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Qingyang, 1957: Monday 13 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "buddha-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Sampat gauri vrata (paraviddha), Phuladola (Bengal & Orissa) (paraviddha), Gandhesvari puja (Bengal) (purvaviddha), Buddha purnima, Vaisakhi purnima." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-13", "confidence": "determinate" } ], "quote": "In Qingyang, Buddha Pūrṇimā 1957 falls on Monday 13 May. Pūrṇimā runs from 07:59 on Mon 13 May to 06:34 on Tue 14 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15761, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-05-13T07:59:15+08:00", "utc": "1957-05-12T23:59:15Z", "ms": -398822445498.8783 }, "end": { "local": "1957-05-14T06:34:15+08:00", "utc": "1957-05-13T22:34:15Z", "ms": -398741145074.7684 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-13T07:59:15+08:00", "utc": "1957-05-12T23:59:15Z", "ms": -398822445498.8783 }, "end": { "local": "1957-05-14T06:34:15+08:00", "utc": "1957-05-13T22:34:15Z", "ms": -398741145074.7684 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-05-13", "window": { "start": { "local": "1957-05-13T12:21:55+08:00", "utc": "1957-05-13T04:21:55Z", "ms": -398806684809.08264 }, "end": { "local": "1957-05-13T13:09:55+08:00", "utc": "1957-05-13T05:09:55Z", "ms": -398803804809.08264 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-05-14", "window": { "start": { "local": "1957-05-14T12:21:54+08:00", "utc": "1957-05-14T04:21:54Z", "ms": -398720285650.1408 }, "end": { "local": "1957-05-14T13:09:54+08:00", "utc": "1957-05-14T05:09:54Z", "ms": -398717405650.1408 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:59 on Mon 13 May to 06:34 on Tue 14 May.", "fact": "1957-05-12T23:59:15Z → 1957-05-13T22:34:15Z" }, { "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": "Pūrṇimā 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 15761 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Qingyang, 1957: Monday 13 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": "1957-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-13", "confidence": "determinate" } ], "quote": "In Qingyang, Sampat Gaurī Vrata 1957 falls on Monday 13 May. Pūrṇimā runs from 07:59 on Mon 13 May to 06:34 on Tue 14 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-05-17", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26442, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-05-17T05:28:15+08:00", "utc": "1957-05-16T21:28:15Z", "ms": -398485905297.66754 }, "end": { "local": "1957-05-18T06:18:46+08:00", "utc": "1957-05-17T22:18:46Z", "ms": -398396474067.5405 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-17T05:28:15+08:00", "utc": "1957-05-16T21:28:15Z", "ms": -398485905297.66754 }, "end": { "local": "1957-05-18T06:18:46+08:00", "utc": "1957-05-17T22:18:46Z", "ms": -398396474067.5405 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-05-16", "window": { "start": { "local": "1957-05-16T22:07:33+08:00", "utc": "1957-05-16T14:07:33Z", "ms": -398512346945.9343 }, "end": { "local": "1957-05-16T22:07:33+08:00", "utc": "1957-05-16T14:07:33Z", "ms": -398512346945.9343 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-05-17", "window": { "start": { "local": "1957-05-17T22:54:19+08:00", "utc": "1957-05-17T14:54:19Z", "ms": -398423141454.44293 }, "end": { "local": "1957-05-17T22:54:19+08:00", "utc": "1957-05-17T14:54:19Z", "ms": -398423141454.44293 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:28 on Fri 17 May to 06:19 on Sat 18 May.", "fact": "1957-05-16T21:28:15Z → 1957-05-17T22:18:46Z" }, { "step": "kaala", "text": "Moonrise is at 22:08 on the 16th and 22:54 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 16th and is on the 17th.", "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 26442 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Friday 17 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-17", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Friday 17 May. Caturthī runs from 05:28 on Fri 17 May to 06:19 on Sat 18 May and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-05-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/ekadashi?on=1957-05-25", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34935, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-05-24T18:27:02+08:00", "utc": "1957-05-24T10:27:02Z", "ms": -397834378022.6814 }, "end": { "local": "1957-05-25T19:55:33+08:00", "utc": "1957-05-25T11:55:33Z", "ms": -397742666993.7421 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-24T18:27:02+08:00", "utc": "1957-05-24T10:27:02Z", "ms": -397834378022.6814 }, "end": { "local": "1957-05-25T19:55:33+08:00", "utc": "1957-05-25T11:55:33Z", "ms": -397742666993.7421 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-05-25", "window": { "start": { "local": "1957-05-25T05:38:20+08:00", "utc": "1957-05-24T21:38:20Z", "ms": -397794100320.6072 }, "end": { "local": "1957-05-25T05:38:20+08:00", "utc": "1957-05-24T21:38:20Z", "ms": -397794100320.6072 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-05-26", "window": { "start": { "local": "1957-05-26T05:37:48+08:00", "utc": "1957-05-25T21:37:48Z", "ms": -397707731939.94794 }, "end": { "local": "1957-05-26T05:37:48+08:00", "utc": "1957-05-25T21:37:48Z", "ms": -397707731939.94794 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:27 on Fri 24 May to 19:56 on Sat 25 May.", "fact": "1957-05-24T10:27:02Z → 1957-05-25T11:55:33Z" }, { "step": "kaala", "text": "Sunrise is at 05:38 on the 25th and 05:38 on the 26th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 25th and is not on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34935 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Qingyang, 1957: Saturday 25 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-25", "confidence": "determinate" } ], "quote": "In Qingyang, Aparā Ekādaśī 1957 falls on Saturday 25 May. Ekādaśī runs from 18:27 on Fri 24 May to 19:56 on Sat 25 May and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-05-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-05-27", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-27", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 635, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-05-26T20:48:29+08:00", "utc": "1957-05-26T12:48:29Z", "ms": -397653091220.4848 }, "end": { "local": "1957-05-27T21:02:43+08:00", "utc": "1957-05-27T13:02:43Z", "ms": -397565837259.76483 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-26T20:48:29+08:00", "utc": "1957-05-26T12:48:29Z", "ms": -397653091220.4848 }, "end": { "local": "1957-05-27T21:02:43+08:00", "utc": "1957-05-27T13:02:43Z", "ms": -397565837259.76483 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-05-26", "window": { "start": { "local": "1957-05-26T19:55:07+08:00", "utc": "1957-05-26T11:55:07Z", "ms": -397656292679.5198 }, "end": { "local": "1957-05-26T21:12:45+08:00", "utc": "1957-05-26T13:12:45Z", "ms": -397651635244.3658 } }, "covered_min": 24, "window_min": 78, "qualifies": true }, { "local_date": "1957-05-27", "window": { "start": { "local": "1957-05-27T19:55:50+08:00", "utc": "1957-05-27T11:55:50Z", "ms": -397569850264.5101 }, "end": { "local": "1957-05-27T21:13:18+08:00", "utc": "1957-05-27T13:13:18Z", "ms": -397565202261.18604 } }, "covered_min": 67, "window_min": 77, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:48 on Sun 26 May to 21:03 on Mon 27 May.", "fact": "1957-05-26T12:48:29Z → 1957-05-27T13:02:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:55–21:13 on the 26th, 19:56–21:13 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 24 of 78 minutes on the 26th and 67 of 77 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 635 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Monday 27 May.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-05-27", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-27", "confidence": "boundary" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Monday 27 May. Trayodaśī runs from 20:48 on Sun 26 May to 21:03 on Mon 27 May and covers 67 of 77 minutes of pradoṣa that evening. It also reaches the previous evening for 24 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/1957/pradosha-vrata?on=1957-05-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-05-27", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-05-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11977, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-05-27T21:02:43+08:00", "utc": "1957-05-27T13:02:43Z", "ms": -397565837259.76483 }, "end": { "local": "1957-05-28T20:38:33+08:00", "utc": "1957-05-28T12:38:33Z", "ms": -397480887124.8038 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-27T21:02:43+08:00", "utc": "1957-05-27T13:02:43Z", "ms": -397565837259.76483 }, "end": { "local": "1957-05-28T20:38:33+08:00", "utc": "1957-05-28T12:38:33Z", "ms": -397480887124.8038 } }, "kaala": "nishita", "days": [ { "local_date": "1957-05-27", "window": { "start": { "local": "1957-05-28T00:22:20+08:00", "utc": "1957-05-27T16:22:20Z", "ms": -397553860252.04486 }, "end": { "local": "1957-05-28T01:10:20+08:00", "utc": "1957-05-27T17:10:20Z", "ms": -397550980252.04486 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-05-28", "window": { "start": { "local": "1957-05-29T00:22:27+08:00", "utc": "1957-05-28T16:22:27Z", "ms": -397467452725.1675 }, "end": { "local": "1957-05-29T01:10:27+08:00", "utc": "1957-05-28T17:10:27Z", "ms": -397464572725.1675 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:03 on Mon 27 May to 20:39 on Tue 28 May.", "fact": "1957-05-27T13:02:43Z → 1957-05-28T12:38:33Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:22–01:10 on the 27th, 00:22–01:10 on the 28th.", "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 27th and 0 of 48 on the 28th.", "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 11977 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Monday 27 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": "1957-05-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-05-27", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Monday 27 May. Caturdaśī runs from 21:03 on Mon 27 May to 20:39 on Tue 28 May and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-05-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3062, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1957-05-31T16:14:32+08:00", "utc": "1957-05-31T08:14:32Z", "ms": -397237528205.4252 }, "end": { "local": "1957-06-01T14:02:13+08:00", "utc": "1957-06-01T06:02:13Z", "ms": -397159066633.13367 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-05-31T16:14:32+08:00", "utc": "1957-05-31T08:14:32Z", "ms": -397237528205.4252 }, "end": { "local": "1957-06-01T14:02:13+08:00", "utc": "1957-06-01T06:02:13Z", "ms": -397159066633.13367 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-05-31", "window": { "start": { "local": "1957-05-31T12:23:03+08:00", "utc": "1957-05-31T04:23:03Z", "ms": -397251416606.96277 }, "end": { "local": "1957-05-31T13:11:03+08:00", "utc": "1957-05-31T05:11:03Z", "ms": -397248536606.96277 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-06-01", "window": { "start": { "local": "1957-06-01T12:23:12+08:00", "utc": "1957-06-01T04:23:12Z", "ms": -397165008177.84106 }, "end": { "local": "1957-06-01T13:11:12+08:00", "utc": "1957-06-01T05:11:12Z", "ms": -397162128177.84106 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 16:15 on Fri 31 May to 14:02 on Sat 1 Jun.", "fact": "1957-05-31T08:14:32Z → 1957-06-01T06:02:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 31st, 12:23–13:11 on the 1st.", "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 31st and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3062 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Qingyang, 1957: Saturday 1 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": "1957-06-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-01", "confidence": "determinate" } ], "quote": "In Qingyang, Rambhā Tṛtīyā 1957 falls on Saturday 1 June. Tṛtīyā runs from 16:15 on Fri 31 May to 14:02 on Sat 1 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vinayaka-chaturthi?on=1957-06-02", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2684, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-06-01T14:02:13+08:00", "utc": "1957-06-01T06:02:13Z", "ms": -397159066633.13367 }, "end": { "local": "1957-06-02T11:38:36+08:00", "utc": "1957-06-02T03:38:36Z", "ms": -397081283524.5413 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-01T14:02:13+08:00", "utc": "1957-06-01T06:02:13Z", "ms": -397159066633.13367 }, "end": { "local": "1957-06-02T11:38:36+08:00", "utc": "1957-06-02T03:38:36Z", "ms": -397081283524.5413 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-06-01", "window": { "start": { "local": "1957-06-01T12:23:12+08:00", "utc": "1957-06-01T04:23:12Z", "ms": -397165008177.84106 }, "end": { "local": "1957-06-01T13:11:12+08:00", "utc": "1957-06-01T05:11:12Z", "ms": -397162128177.84106 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-06-02", "window": { "start": { "local": "1957-06-02T12:23:21+08:00", "utc": "1957-06-02T04:23:21Z", "ms": -397078599365.6515 }, "end": { "local": "1957-06-02T13:11:21+08:00", "utc": "1957-06-02T05:11:21Z", "ms": -397075719365.6515 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:02 on Sat 1 Jun to 11:39 on Sun 2 Jun.", "fact": "1957-06-01T06:02:13Z → 1957-06-02T03:38:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 1st, 12:23–13:11 on the 2nd.", "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 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: unstated → second-day · margin 2684 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Sunday 2 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": "1957-06-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-02", "confidence": "boundary" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Sunday 2 June. Caturthī runs from 14:02 on Sat 1 Jun to 11:39 on Sun 2 Jun, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-06-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11618, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1957-06-03T09:09:52+08:00", "utc": "1957-06-03T01:09:52Z", "ms": -397003808471.70685 }, "end": { "local": "1957-06-04T06:41:30+08:00", "utc": "1957-06-03T22:41:30Z", "ms": -396926310232.49097 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-03T09:09:52+08:00", "utc": "1957-06-03T01:09:52Z", "ms": -397003808471.70685 }, "end": { "local": "1957-06-04T06:41:30+08:00", "utc": "1957-06-03T22:41:30Z", "ms": -396926310232.49097 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-06-03", "window": { "start": { "local": "1957-06-03T12:23:30+08:00", "utc": "1957-06-03T04:23:30Z", "ms": -396992190190.83044 }, "end": { "local": "1957-06-03T13:11:30+08:00", "utc": "1957-06-03T05:11:30Z", "ms": -396989310190.83044 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-06-04", "window": { "start": { "local": "1957-06-04T12:23:39+08:00", "utc": "1957-06-04T04:23:39Z", "ms": -396905780673.33276 }, "end": { "local": "1957-06-04T13:11:39+08:00", "utc": "1957-06-04T05:11:39Z", "ms": -396902900673.33276 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:10 on Mon 3 Jun to 06:41 on Tue 4 Jun.", "fact": "1957-06-03T01:09:52Z → 1957-06-03T22:41:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 3rd, 12:24–13:12 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "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 11618 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Qingyang, 1957: Monday 3 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": "1957-06-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-03", "confidence": "determinate" } ], "quote": "In Qingyang, Araṇya Gaurī Vrata 1957 falls on Monday 3 June. Ṣaṣṭhī runs from 09:10 on Mon 3 Jun to 06:41 on Tue 4 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11618, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1957-06-03T09:09:52+08:00", "utc": "1957-06-03T01:09:52Z", "ms": -397003808471.70685 }, "end": { "local": "1957-06-04T06:41:30+08:00", "utc": "1957-06-03T22:41:30Z", "ms": -396926310232.49097 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-03T09:09:52+08:00", "utc": "1957-06-03T01:09:52Z", "ms": -397003808471.70685 }, "end": { "local": "1957-06-04T06:41:30+08:00", "utc": "1957-06-03T22:41:30Z", "ms": -396926310232.49097 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-06-03", "window": { "start": { "local": "1957-06-03T12:23:30+08:00", "utc": "1957-06-03T04:23:30Z", "ms": -396992190190.83044 }, "end": { "local": "1957-06-03T13:11:30+08:00", "utc": "1957-06-03T05:11:30Z", "ms": -396989310190.83044 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-06-04", "window": { "start": { "local": "1957-06-04T12:23:39+08:00", "utc": "1957-06-04T04:23:39Z", "ms": -396905780673.33276 }, "end": { "local": "1957-06-04T13:11:39+08:00", "utc": "1957-06-04T05:11:39Z", "ms": -396902900673.33276 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:10 on Mon 3 Jun to 06:41 on Tue 4 Jun.", "fact": "1957-06-03T01:09:52Z → 1957-06-03T22:41:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 3rd, 12:24–13:12 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "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 11618 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Qingyang, 1957: Monday 3 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": "1957-06-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-03", "confidence": "determinate" } ], "quote": "In Qingyang, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1957 falls on Monday 3 June. Ṣaṣṭhī runs from 09:10 on Mon 3 Jun to 06:41 on Tue 4 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-06-08", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26396, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-06-07T22:13:32+08:00", "utc": "1957-06-07T14:13:32Z", "ms": -396611188229.3359 }, "end": { "local": "1957-06-08T20:41:59+08:00", "utc": "1957-06-08T12:41:59Z", "ms": -396530280691.1019 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-07T22:13:32+08:00", "utc": "1957-06-07T14:13:32Z", "ms": -396611188229.3359 }, "end": { "local": "1957-06-08T20:41:59+08:00", "utc": "1957-06-08T12:41:59Z", "ms": -396530280691.1019 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-06-08", "window": { "start": { "local": "1957-06-08T05:33:28+08:00", "utc": "1957-06-07T21:33:28Z", "ms": -396584791792.5542 }, "end": { "local": "1957-06-08T05:33:28+08:00", "utc": "1957-06-07T21:33:28Z", "ms": -396584791792.5542 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-06-09", "window": { "start": { "local": "1957-06-09T05:33:20+08:00", "utc": "1957-06-08T21:33:20Z", "ms": -396498400102.8179 }, "end": { "local": "1957-06-09T05:33:20+08:00", "utc": "1957-06-08T21:33:20Z", "ms": -396498400102.8179 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:14 on Fri 7 Jun to 20:42 on Sat 8 Jun.", "fact": "1957-06-07T14:13:32Z → 1957-06-08T12:41:59Z" }, { "step": "kaala", "text": "Sunrise is at 05:33 on the 8th and 05:33 on the 9th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 8th and is not on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26396 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Qingyang, 1957: Saturday 8 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-06-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-08", "confidence": "determinate" } ], "quote": "In Qingyang, Nirjalā Ekādaśī 1957 falls on Saturday 8 June. Ekādaśī runs from 22:14 on Fri 7 Jun to 20:42 on Sat 8 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-06-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22580, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1957-06-08T20:41:59+08:00", "utc": "1957-06-08T12:41:59Z", "ms": -396530280691.1019 }, "end": { "local": "1957-06-09T19:28:51+08:00", "utc": "1957-06-09T11:28:51Z", "ms": -396448268907.7399 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-08T20:41:59+08:00", "utc": "1957-06-08T12:41:59Z", "ms": -396530280691.1019 }, "end": { "local": "1957-06-09T19:28:51+08:00", "utc": "1957-06-09T11:28:51Z", "ms": -396448268907.7399 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-06-08", "window": { "start": { "local": "1957-06-08T12:24:20+08:00", "utc": "1957-06-08T04:24:20Z", "ms": -396560139550.4266 }, "end": { "local": "1957-06-08T13:12:20+08:00", "utc": "1957-06-08T05:12:20Z", "ms": -396557259550.4266 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-06-09", "window": { "start": { "local": "1957-06-09T12:24:31+08:00", "utc": "1957-06-09T04:24:31Z", "ms": -396473728594.2461 }, "end": { "local": "1957-06-09T13:12:31+08:00", "utc": "1957-06-09T05:12:31Z", "ms": -396470848594.2461 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 20:42 on Sat 8 Jun to 19:29 on Sun 9 Jun.", "fact": "1957-06-08T12:41:59Z → 1957-06-09T11:28:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 8th, 12:25–13:13 on the 9th.", "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 8th and 48 of 48 on the 9th.", "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 22580 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Qingyang, 1957: Sunday 9 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": "1957-06-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-09", "confidence": "determinate" } ], "quote": "In Qingyang, Śrī Rāma Dvādaśī 1957 falls on Sunday 9 June. Dvādaśī runs from 20:42 on Sat 8 Jun to 19:29 on Sun 9 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/pradosha-vrata?on=1957-06-09", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2092, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-06-09T19:28:51+08:00", "utc": "1957-06-09T11:28:51Z", "ms": -396448268907.7399 }, "end": { "local": "1957-06-10T18:36:13+08:00", "utc": "1957-06-10T10:36:13Z", "ms": -396365027053.6415 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-09T19:28:51+08:00", "utc": "1957-06-09T11:28:51Z", "ms": -396448268907.7399 }, "end": { "local": "1957-06-10T18:36:13+08:00", "utc": "1957-06-10T10:36:13Z", "ms": -396365027053.6415 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-06-09", "window": { "start": { "local": "1957-06-09T20:03:43+08:00", "utc": "1957-06-09T12:03:43Z", "ms": -396446177085.67426 }, "end": { "local": "1957-06-09T21:19:39+08:00", "utc": "1957-06-09T13:19:39Z", "ms": -396441621040.9121 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "1957-06-10", "window": { "start": { "local": "1957-06-10T20:04:12+08:00", "utc": "1957-06-10T12:04:12Z", "ms": -396359748053.24554 }, "end": { "local": "1957-06-10T21:20:03+08:00", "utc": "1957-06-10T13:20:03Z", "ms": -396355196544.48395 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:29 on Sun 9 Jun to 18:36 on Mon 10 Jun.", "fact": "1957-06-09T11:28:51Z → 1957-06-10T10:36:13Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:04–21:20 on the 9th, 20:04–21:20 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 76 of 76 minutes on the 9th and 0 of 76 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 2092 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Sunday 9 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-06-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-09", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Sunday 9 June. Trayodaśī runs from 19:29 on Sun 9 Jun to 18:36 on Mon 10 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-06-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7095, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-06-11T18:06:24+08:00", "utc": "1957-06-11T10:06:24Z", "ms": -396280415511.7853 }, "end": { "local": "1957-06-12T18:01:53+08:00", "utc": "1957-06-12T10:01:53Z", "ms": -396194286731.04987 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-11T18:06:24+08:00", "utc": "1957-06-11T10:06:24Z", "ms": -396280415511.7853 }, "end": { "local": "1957-06-12T18:01:53+08:00", "utc": "1957-06-12T10:01:53Z", "ms": -396194286731.04987 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-06-11", "window": { "start": { "local": "1957-06-11T20:04:40+08:00", "utc": "1957-06-11T12:04:40Z", "ms": -396273320240.90765 }, "end": { "local": "1957-06-11T21:20:27+08:00", "utc": "1957-06-11T13:20:27Z", "ms": -396268772884.7992 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "1957-06-12", "window": { "start": { "local": "1957-06-12T20:05:06+08:00", "utc": "1957-06-12T12:05:06Z", "ms": -396186893678.04065 }, "end": { "local": "1957-06-12T21:20:50+08:00", "utc": "1957-06-12T13:20:50Z", "ms": -396182350088.08417 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:06 on Tue 11 Jun to 18:02 on Wed 12 Jun.", "fact": "1957-06-11T10:06:24Z → 1957-06-12T10:01:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:05–21:20 on the 11th, 20:05–21:21 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 76 of 76 minutes on the 11th and 0 of 76 on the 12th.", "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 7095 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Qingyang, 1957: Tuesday 11 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": "1957-06-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-11", "confidence": "determinate" } ], "quote": "In Qingyang, Vaṭa Sāvitrī Vrata 1957 falls on Tuesday 11 June. Pūrṇimā runs from 18:06 on Tue 11 Jun to 18:02 on Wed 12 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-06-15", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1162, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-06-15T20:38:00+08:00", "utc": "1957-06-15T12:38:00Z", "ms": -395925719663.3458 }, "end": { "local": "1957-06-16T22:25:34+08:00", "utc": "1957-06-16T14:25:34Z", "ms": -395832866349.26984 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-15T20:38:00+08:00", "utc": "1957-06-15T12:38:00Z", "ms": -395925719663.3458 }, "end": { "local": "1957-06-16T22:25:34+08:00", "utc": "1957-06-16T14:25:34Z", "ms": -395832866349.26984 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-06-15", "window": { "start": { "local": "1957-06-15T22:10:05+08:00", "utc": "1957-06-15T14:10:05Z", "ms": -395920194634.2785 }, "end": { "local": "1957-06-15T22:10:05+08:00", "utc": "1957-06-15T14:10:05Z", "ms": -395920194634.2785 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-06-16", "window": { "start": { "local": "1957-06-16T22:44:56+08:00", "utc": "1957-06-16T14:44:56Z", "ms": -395831704148.28345 }, "end": { "local": "1957-06-16T22:44:56+08:00", "utc": "1957-06-16T14:44:56Z", "ms": -395831704148.28345 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:38 on Sat 15 Jun to 22:26 on Sun 16 Jun.", "fact": "1957-06-15T12:38:00Z → 1957-06-16T14:25:34Z" }, { "step": "kaala", "text": "Moonrise is at 22:10 on the 15th and 22:45 on the 16th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 15th and is not on the 16th.", "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 1162 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Saturday 15 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": "1957-06-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-15", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Saturday 15 June. Caturthī runs from 20:38 on Sat 15 Jun to 22:26 on Sun 16 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-06-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/ekadashi?on=1957-06-24", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16683, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-06-23T10:12:18+08:00", "utc": "1957-06-23T02:12:18Z", "ms": -395272062316.9922 }, "end": { "local": "1957-06-24T10:34:56+08:00", "utc": "1957-06-24T02:34:56Z", "ms": -395184303783.43304 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-23T10:12:18+08:00", "utc": "1957-06-23T02:12:18Z", "ms": -395272062316.9922 }, "end": { "local": "1957-06-24T10:34:56+08:00", "utc": "1957-06-24T02:34:56Z", "ms": -395184303783.43304 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-06-23", "window": { "start": { "local": "1957-06-23T05:34:15+08:00", "utc": "1957-06-22T21:34:15Z", "ms": -395288745306.7985 }, "end": { "local": "1957-06-23T05:34:15+08:00", "utc": "1957-06-22T21:34:15Z", "ms": -395288745306.7985 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-06-24", "window": { "start": { "local": "1957-06-24T05:34:30+08:00", "utc": "1957-06-23T21:34:30Z", "ms": -395202329712.053 }, "end": { "local": "1957-06-24T05:34:30+08:00", "utc": "1957-06-23T21:34:30Z", "ms": -395202329712.053 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:12 on Sun 23 Jun to 10:35 on Mon 24 Jun.", "fact": "1957-06-23T02:12:18Z → 1957-06-24T02:34:56Z" }, { "step": "kaala", "text": "Sunrise is at 05:34 on the 23rd and 05:35 on the 24th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 23rd and is on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16683 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Qingyang, 1957: Monday 24 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-06-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-24", "confidence": "determinate" } ], "quote": "In Qingyang, Yoginī Ekādaśī 1957 falls on Monday 24 June. Ekādaśī runs from 10:12 on Sun 23 Jun to 10:35 on Mon 24 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-06-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-06-25", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35835, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-06-25T10:11:31+08:00", "utc": "1957-06-25T02:11:31Z", "ms": -395099309214.23816 }, "end": { "local": "1957-06-26T09:03:20+08:00", "utc": "1957-06-26T01:03:20Z", "ms": -395017000493.61334 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-25T10:11:31+08:00", "utc": "1957-06-25T02:11:31Z", "ms": -395099309214.23816 }, "end": { "local": "1957-06-26T09:03:20+08:00", "utc": "1957-06-26T01:03:20Z", "ms": -395017000493.61334 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-06-25", "window": { "start": { "local": "1957-06-25T20:08:45+08:00", "utc": "1957-06-25T12:08:45Z", "ms": -395063474676.2593 }, "end": { "local": "1957-06-25T21:24:16+08:00", "utc": "1957-06-25T13:24:16Z", "ms": -395058943949.8683 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "1957-06-26", "window": { "start": { "local": "1957-06-26T20:08:52+08:00", "utc": "1957-06-26T12:08:52Z", "ms": -394977068433.8684 }, "end": { "local": "1957-06-26T21:24:24+08:00", "utc": "1957-06-26T13:24:24Z", "ms": -394972535896.4278 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:12 on Tue 25 Jun to 09:03 on Wed 26 Jun.", "fact": "1957-06-25T02:11:31Z → 1957-06-26T01:03:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:09–21:24 on the 25th, 20:09–21:24 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 76 of 76 minutes on the 25th and 0 of 76 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35835 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Tuesday 25 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-06-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-25", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Tuesday 25 June. Trayodaśī runs from 10:12 on Tue 25 Jun to 09:03 on Wed 26 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-06-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-06-26", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21530, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-06-26T09:03:20+08:00", "utc": "1957-06-26T01:03:20Z", "ms": -395017000493.61334 }, "end": { "local": "1957-06-27T07:14:59+08:00", "utc": "1957-06-26T23:14:59Z", "ms": -394937101452.6298 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-26T09:03:20+08:00", "utc": "1957-06-26T01:03:20Z", "ms": -395017000493.61334 }, "end": { "local": "1957-06-27T07:14:59+08:00", "utc": "1957-06-26T23:14:59Z", "ms": -394937101452.6298 } }, "kaala": "nishita", "days": [ { "local_date": "1957-06-25", "window": { "start": { "local": "1957-06-26T00:27:56+08:00", "utc": "1957-06-25T16:27:56Z", "ms": -395047924452.2931 }, "end": { "local": "1957-06-26T01:15:56+08:00", "utc": "1957-06-25T17:15:56Z", "ms": -395045044452.2931 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-06-26", "window": { "start": { "local": "1957-06-27T00:28:09+08:00", "utc": "1957-06-26T16:28:09Z", "ms": -394961511418.46606 }, "end": { "local": "1957-06-27T01:16:09+08:00", "utc": "1957-06-26T17:16:09Z", "ms": -394958631418.46606 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:03 on Wed 26 Jun to 07:15 on Thu 27 Jun.", "fact": "1957-06-26T01:03:20Z → 1957-06-26T23:14:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:28–01:16 on the 25th, 00:28–01:16 on the 26th.", "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 25th and 48 of 48 on the 26th.", "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 21530 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Wednesday 26 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": "1957-06-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-26", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Wednesday 26 June. Caturdaśī runs from 09:03 on Wed 26 Jun to 07:15 on Thu 27 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-06-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-06-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35340, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1957-06-29T02:07:15+08:00", "utc": "1957-06-28T18:07:15Z", "ms": -394782765077.41266 }, "end": { "local": "1957-06-29T23:05:34+08:00", "utc": "1957-06-29T15:05:34Z", "ms": -394707265627.69135 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-29T02:07:15+08:00", "utc": "1957-06-28T18:07:15Z", "ms": -394782765077.41266 }, "end": { "local": "1957-06-29T23:05:34+08:00", "utc": "1957-06-29T15:05:34Z", "ms": -394707265627.69135 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-06-28", "window": { "start": { "local": "1957-06-28T12:28:23+08:00", "utc": "1957-06-28T04:28:23Z", "ms": -394831897044.0198 }, "end": { "local": "1957-06-28T13:16:23+08:00", "utc": "1957-06-28T05:16:23Z", "ms": -394829017044.0198 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-06-29", "window": { "start": { "local": "1957-06-29T12:28:35+08:00", "utc": "1957-06-29T04:28:35Z", "ms": -394745485157.5204 }, "end": { "local": "1957-06-29T13:16:35+08:00", "utc": "1957-06-29T05:16:35Z", "ms": -394742605157.5204 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 02:07 on Sat 29 Jun to 23:06 on Sat 29 Jun.", "fact": "1957-06-28T18:07:15Z → 1957-06-29T15:05:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 28th, 12:29–13:17 on the 29th.", "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 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35340 s" }, { "step": "ruling", "text": "Rathayātrā, Qingyang, 1957: Saturday 29 June.", "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": "1957-06-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-06-29", "confidence": "determinate" } ], "quote": "In Qingyang, Rathayātrā 1957 falls on Saturday 29 June. Dvitīyā runs from 02:07 on Sat 29 Jun to 23:06 on Sat 29 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vinayaka-chaturthi?on=1957-07-01", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12940, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-06-30T19:57:44+08:00", "utc": "1957-06-30T11:57:44Z", "ms": -394632135583.1298 }, "end": { "local": "1957-07-01T16:52:38+08:00", "utc": "1957-07-01T08:52:38Z", "ms": -394556841961.2017 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-06-30T19:57:44+08:00", "utc": "1957-06-30T11:57:44Z", "ms": -394632135583.1298 }, "end": { "local": "1957-07-01T16:52:38+08:00", "utc": "1957-07-01T08:52:38Z", "ms": -394556841961.2017 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-06-30", "window": { "start": { "local": "1957-06-30T12:28:47+08:00", "utc": "1957-06-30T04:28:47Z", "ms": -394659073479.6304 }, "end": { "local": "1957-06-30T13:16:47+08:00", "utc": "1957-06-30T05:16:47Z", "ms": -394656193479.6304 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-07-01", "window": { "start": { "local": "1957-07-01T12:28:58+08:00", "utc": "1957-07-01T04:28:58Z", "ms": -394572662037.4366 }, "end": { "local": "1957-07-01T13:16:58+08:00", "utc": "1957-07-01T05:16:58Z", "ms": -394569782037.4366 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:58 on Sun 30 Jun to 16:53 on Mon 1 Jul.", "fact": "1957-06-30T11:57:44Z → 1957-07-01T08:52:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 30th, 12:29–13:17 on the 1st.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12940 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Monday 1 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": "1957-07-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-01", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Monday 1 July. Caturthī runs from 19:58 on Sun 30 Jun to 16:53 on Mon 1 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-07-01", "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/1957/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2466, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1957-07-01T16:52:38+08:00", "utc": "1957-07-01T08:52:38Z", "ms": -394556841961.2017 }, "end": { "local": "1957-07-02T13:58:15+08:00", "utc": "1957-07-02T05:58:15Z", "ms": -394480904967.6518 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-07-01T16:52:38+08:00", "utc": "1957-07-01T08:52:38Z", "ms": -394556841961.2017 }, "end": { "local": "1957-07-02T13:58:15+08:00", "utc": "1957-07-02T05:58:15Z", "ms": -394480904967.6518 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-07-01", "window": { "start": { "local": "1957-07-01T12:28:58+08:00", "utc": "1957-07-01T04:28:58Z", "ms": -394572662037.4366 }, "end": { "local": "1957-07-01T13:16:58+08:00", "utc": "1957-07-01T05:16:58Z", "ms": -394569782037.4366 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-07-02", "window": { "start": { "local": "1957-07-02T12:29:09+08:00", "utc": "1957-07-02T04:29:09Z", "ms": -394486250856.66296 }, "end": { "local": "1957-07-02T13:17:09+08:00", "utc": "1957-07-02T05:17:09Z", "ms": -394483370856.66296 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 16:53 on Mon 1 Jul to 13:58 on Tue 2 Jul.", "fact": "1957-07-01T08:52:38Z → 1957-07-02T05:58:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 1st, 12:29–13:17 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "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 2466 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Qingyang, 1957: Tuesday 2 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": "1957-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-02", "confidence": "determinate" } ], "quote": "In Qingyang, Skanda Pañcamī 1957 falls on Tuesday 2 July. Pañcamī runs from 16:53 on Mon 1 Jul to 13:58 on Tue 2 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4082, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1957-07-03T11:21:18+08:00", "utc": "1957-07-03T03:21:18Z", "ms": -394403921918.6961 }, "end": { "local": "1957-07-04T09:06:54+08:00", "utc": "1957-07-04T01:06:54Z", "ms": -394325586329.9345 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-07-03T11:21:18+08:00", "utc": "1957-07-03T03:21:18Z", "ms": -394403921918.6961 }, "end": { "local": "1957-07-04T09:06:54+08:00", "utc": "1957-07-04T01:06:54Z", "ms": -394325586329.9345 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-07-03", "window": { "start": { "local": "1957-07-03T12:29:20+08:00", "utc": "1957-07-03T04:29:20Z", "ms": -394399839961.2698 }, "end": { "local": "1957-07-03T13:17:20+08:00", "utc": "1957-07-03T05:17:20Z", "ms": -394396959961.2698 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-07-04", "window": { "start": { "local": "1957-07-04T12:29:31+08:00", "utc": "1957-07-04T04:29:31Z", "ms": -394313429373.4004 }, "end": { "local": "1957-07-04T13:17:31+08:00", "utc": "1957-07-04T05:17:31Z", "ms": -394310549373.4004 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 11:21 on Wed 3 Jul to 09:07 on Thu 4 Jul.", "fact": "1957-07-03T03:21:18Z → 1957-07-04T01:06:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 3rd, 12:30–13:18 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "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 4082 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Qingyang, 1957: Wednesday 3 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": "1957-07-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-03", "confidence": "boundary" } ], "quote": "In Qingyang, Vivasvat Saptamī 1957 falls on Wednesday 3 July. Saptamī runs from 11:21 on Wed 3 Jul to 09:07 on Thu 4 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-07-07", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2175, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-07-07T05:03:37+08:00", "utc": "1957-07-06T21:03:37Z", "ms": -394080983000.2416 }, "end": { "local": "1957-07-08T04:36:33+08:00", "utc": "1957-07-07T20:36:33Z", "ms": -393996207331.6484 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-07-07T05:03:37+08:00", "utc": "1957-07-06T21:03:37Z", "ms": -394080983000.2416 }, "end": { "local": "1957-07-08T04:36:33+08:00", "utc": "1957-07-07T20:36:33Z", "ms": -393996207331.6484 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-07-07", "window": { "start": { "local": "1957-07-07T05:39:52+08:00", "utc": "1957-07-06T21:39:52Z", "ms": -394078808387.2031 }, "end": { "local": "1957-07-07T05:39:52+08:00", "utc": "1957-07-06T21:39:52Z", "ms": -394078808387.2031 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-07-08", "window": { "start": { "local": "1957-07-08T05:40:24+08:00", "utc": "1957-07-07T21:40:24Z", "ms": -393992375806.7045 }, "end": { "local": "1957-07-08T05:40:24+08:00", "utc": "1957-07-07T21:40:24Z", "ms": -393992375806.7045 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:04 on Sun 7 Jul to 04:37 on Mon 8 Jul.", "fact": "1957-07-06T21:03:37Z → 1957-07-07T20:36:33Z" }, { "step": "kaala", "text": "Sunrise is at 05:40 on the 7th and 05:40 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 2175 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Qingyang, 1957: Sunday 7 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": "1957-07-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-07", "confidence": "determinate" } ], "quote": "In Qingyang, Hariśayanī Ekādaśī 1957 falls on Sunday 7 July. Ekādaśī runs from 05:04 on Sun 7 Jul to 04:37 on Mon 8 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-07-07", "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/1957/pradosha-vrata?on=1957-07-09", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25820, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-07-09T04:34:40+08:00", "utc": "1957-07-08T20:34:40Z", "ms": -393909920406.3465 }, "end": { "local": "1957-07-10T04:56:43+08:00", "utc": "1957-07-09T20:56:43Z", "ms": -393822197168.2531 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-07-09T04:34:40+08:00", "utc": "1957-07-08T20:34:40Z", "ms": -393909920406.3465 }, "end": { "local": "1957-07-10T04:56:43+08:00", "utc": "1957-07-09T20:56:43Z", "ms": -393822197168.2531 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-07-08", "window": { "start": { "local": "1957-07-08T20:07:55+08:00", "utc": "1957-07-08T12:07:55Z", "ms": -393940325155.3358 }, "end": { "local": "1957-07-08T21:24:19+08:00", "utc": "1957-07-08T13:24:19Z", "ms": -393935740771.60315 } }, "covered_min": 0, "window_min": 76, "qualifies": false }, { "local_date": "1957-07-09", "window": { "start": { "local": "1957-07-09T20:07:39+08:00", "utc": "1957-07-09T12:07:39Z", "ms": -393853941135.42316 }, "end": { "local": "1957-07-09T21:24:10+08:00", "utc": "1957-07-09T13:24:10Z", "ms": -393849350028.2999 } }, "covered_min": 77, "window_min": 77, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:35 on Tue 9 Jul to 04:57 on Wed 10 Jul.", "fact": "1957-07-08T20:34:40Z → 1957-07-09T20:56:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:08–21:24 on the 8th, 20:08–21:24 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 76 minutes on the 8th and 77 of 77 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 25820 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Tuesday 9 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-07-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-09", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Tuesday 9 July. Trayodaśī runs from 04:35 on Tue 9 Jul to 04:57 on Wed 10 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-07-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-11", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 15, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-07-11T05:41:52+08:00", "utc": "1957-07-10T21:41:52Z", "ms": -393733087542.2007 }, "end": { "local": "1957-07-12T06:49:41+08:00", "utc": "1957-07-11T22:49:41Z", "ms": -393642618588.3661 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-07-11T05:41:52+08:00", "utc": "1957-07-10T21:41:52Z", "ms": -393733087542.2007 }, "end": { "local": "1957-07-12T06:49:41+08:00", "utc": "1957-07-11T22:49:41Z", "ms": -393642618588.3661 } }, "kaala": "udaya-3", "days": [ { "local_date": "1957-07-11", "window": { "start": { "local": "1957-07-11T05:42:07+08:00", "utc": "1957-07-10T21:42:07Z", "ms": -393733072503.2278 }, "end": { "local": "1957-07-11T08:35:06+08:00", "utc": "1957-07-11T00:35:06Z", "ms": -393722693660.7034 } }, "covered_min": 173, "window_min": 173, "qualifies": true }, { "local_date": "1957-07-12", "window": { "start": { "local": "1957-07-12T05:42:44+08:00", "utc": "1957-07-11T21:42:44Z", "ms": -393646636323.3289 }, "end": { "local": "1957-07-12T08:35:31+08:00", "utc": "1957-07-12T00:35:31Z", "ms": -393636268949.08234 } }, "covered_min": 67, "window_min": 173, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:42 on Thu 11 Jul to 06:50 on Fri 12 Jul.", "fact": "1957-07-10T21:41:52Z → 1957-07-11T22:49:41Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:42–08:35 on the 11th, 05:43–08:36 on the 12th.", "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 173 of 173 minutes on the 11th and 67 of 173 on the 12th.", "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 15 s < 300 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Qingyang, 1957: Thursday 11 July.", "fact": "confidence: boundary (margin)" } ], "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": "1957-07-11", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-11", "confidence": "boundary" } ], "quote": "In Qingyang, Vyāsa Pūjā 1957 falls on Thursday 11 July. Pūrṇimā runs from 05:42 on Thu 11 Jul to 06:50 on Fri 12 Jul and covers all of the first three muhūrtas after sunrise that morning. It is 0 min 15 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20461, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-07-11T05:41:52+08:00", "utc": "1957-07-10T21:41:52Z", "ms": -393733087542.2007 }, "end": { "local": "1957-07-12T06:49:41+08:00", "utc": "1957-07-11T22:49:41Z", "ms": -393642618588.3661 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-07-11T05:41:52+08:00", "utc": "1957-07-10T21:41:52Z", "ms": -393733087542.2007 }, "end": { "local": "1957-07-12T06:49:41+08:00", "utc": "1957-07-11T22:49:41Z", "ms": -393642618588.3661 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-07-11", "window": { "start": { "local": "1957-07-11T12:30:35+08:00", "utc": "1957-07-11T04:30:35Z", "ms": -393708565396.9169 }, "end": { "local": "1957-07-11T13:18:35+08:00", "utc": "1957-07-11T05:18:35Z", "ms": -393705685396.9169 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-07-12", "window": { "start": { "local": "1957-07-12T12:30:42+08:00", "utc": "1957-07-12T04:30:42Z", "ms": -393622157887.71246 }, "end": { "local": "1957-07-12T13:18:42+08:00", "utc": "1957-07-12T05:18:42Z", "ms": -393619277887.71246 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:42 on Thu 11 Jul to 06:50 on Fri 12 Jul.", "fact": "1957-07-10T21:41:52Z → 1957-07-11T22:49:41Z" }, { "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": "Pūrṇimā 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20461 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Qingyang, 1957: Thursday 11 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": "1957-07-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-11", "confidence": "determinate" } ], "quote": "In Qingyang, Guru Pūrṇimā 1957 falls on Thursday 11 July. Pūrṇimā runs from 05:42 on Thu 11 Jul to 06:50 on Fri 12 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34471, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-07-11T05:41:52+08:00", "utc": "1957-07-10T21:41:52Z", "ms": -393733087542.2007 }, "end": { "local": "1957-07-12T06:49:41+08:00", "utc": "1957-07-11T22:49:41Z", "ms": -393642618588.3661 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-07-11T05:41:52+08:00", "utc": "1957-07-10T21:41:52Z", "ms": -393733087542.2007 }, "end": { "local": "1957-07-12T06:49:41+08:00", "utc": "1957-07-11T22:49:41Z", "ms": -393642618588.3661 } }, "kaala": "sayahna", "days": [ { "local_date": "1957-07-10", "window": { "start": { "local": "1957-07-10T17:14:11+08:00", "utc": "1957-07-10T09:14:11Z", "ms": -393777948645.8002 }, "end": { "local": "1957-07-10T20:07:21+08:00", "utc": "1957-07-10T12:07:21Z", "ms": -393767558849.2505 } }, "covered_min": 0, "window_min": 173, "qualifies": false }, { "local_date": "1957-07-11", "window": { "start": { "local": "1957-07-11T17:14:03+08:00", "utc": "1957-07-11T09:14:03Z", "ms": -393691557133.13025 }, "end": { "local": "1957-07-11T20:07:02+08:00", "utc": "1957-07-11T12:07:02Z", "ms": -393681178290.6059 } }, "covered_min": 173, "window_min": 173, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:42 on Thu 11 Jul to 06:50 on Fri 12 Jul.", "fact": "1957-07-10T21:41:52Z → 1957-07-11T22:49:41Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:14–20:07 on the 10th, 17:14–20:07 on the 11th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 173 minutes on the 10th and 173 of 173 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34471 s" }, { "step": "ruling", "text": "Kokilā Vrata, Qingyang, 1957: Thursday 11 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kokila-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-07-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-11", "confidence": "determinate" } ], "quote": "In Qingyang, Kokilā Vrata 1957 falls on Thursday 11 July. Pūrṇimā runs from 05:42 on Thu 11 Jul to 06:50 on Fri 12 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29873, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-07-11T05:41:52+08:00", "utc": "1957-07-10T21:41:52Z", "ms": -393733087542.2007 }, "end": { "local": "1957-07-12T06:49:41+08:00", "utc": "1957-07-11T22:49:41Z", "ms": -393642618588.3661 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1957-07-11T05:41:52+08:00", "utc": "1957-07-10T21:41:52Z", "ms": -393733087542.2007 }, "end": { "local": "1957-07-12T06:49:41+08:00", "utc": "1957-07-11T22:49:41Z", "ms": -393642618588.3661 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-07-10", "window": { "start": { "local": "1957-07-10T20:07:21+08:00", "utc": "1957-07-10T12:07:21Z", "ms": -393767558849.2505 }, "end": { "local": "1957-07-10T21:23:59+08:00", "utc": "1957-07-10T13:23:59Z", "ms": -393762960669.7808 } }, "covered_min": 0, "window_min": 77, "qualifies": false }, { "local_date": "1957-07-11", "window": { "start": { "local": "1957-07-11T20:07:02+08:00", "utc": "1957-07-11T12:07:02Z", "ms": -393681178290.6059 }, "end": { "local": "1957-07-11T21:23:47+08:00", "utc": "1957-07-11T13:23:47Z", "ms": -393676572694.969 } }, "covered_min": 77, "window_min": 77, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:42 on Thu 11 Jul to 06:50 on Fri 12 Jul.", "fact": "1957-07-10T21:41:52Z → 1957-07-11T22:49:41Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:07–21:24 on the 10th, 20:07–21:24 on the 11th.", "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 77 minutes on the 10th and 77 of 77 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29873 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Qingyang, 1957: Thursday 11 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shiva-shayanotsava", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-07-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-11", "confidence": "determinate" } ], "quote": "In Qingyang, Śiva Śayanotsava 1957 falls on Thursday 11 July. Pūrṇimā runs from 05:42 on Thu 11 Jul to 06:50 on Fri 12 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40038, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1957-07-13T08:19:41+08:00", "utc": "1957-07-13T00:19:41Z", "ms": -393550818905.67773 }, "end": { "local": "1957-07-14T10:10:38+08:00", "utc": "1957-07-14T02:10:38Z", "ms": -393457761948.07556 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-07-13T08:19:41+08:00", "utc": "1957-07-13T00:19:41Z", "ms": -393550818905.67773 }, "end": { "local": "1957-07-14T10:10:38+08:00", "utc": "1957-07-14T02:10:38Z", "ms": -393457761948.07556 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-07-13", "window": { "start": { "local": "1957-07-13T20:44:51+08:00", "utc": "1957-07-13T12:44:51Z", "ms": -393506109031.9485 }, "end": { "local": "1957-07-13T20:44:51+08:00", "utc": "1957-07-13T12:44:51Z", "ms": -393506109031.9485 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-07-14", "window": { "start": { "local": "1957-07-14T21:17:56+08:00", "utc": "1957-07-14T13:17:56Z", "ms": -393417723938.9957 }, "end": { "local": "1957-07-14T21:17:56+08:00", "utc": "1957-07-14T13:17:56Z", "ms": -393417723938.9957 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 08:20 on Sat 13 Jul to 10:11 on Sun 14 Jul.", "fact": "1957-07-13T00:19:41Z → 1957-07-14T02:10:38Z" }, { "step": "kaala", "text": "Moonrise is at 20:45 on the 13th and 21:18 on the 14th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 13th and is not on the 14th.", "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 40038 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Qingyang, 1957: Saturday 13 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": "1957-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-13", "confidence": "determinate" } ], "quote": "In Qingyang, Aśūnya Śayana Vrata (Āṣāḍha) 1957 falls on Saturday 13 July. Dvitīyā runs from 08:20 on Sat 13 Jul to 10:11 on Sun 14 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-07-15", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27410, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-07-15T12:19:40+08:00", "utc": "1957-07-15T04:19:40Z", "ms": -393363619703.9587 }, "end": { "local": "1957-07-16T14:41:27+08:00", "utc": "1957-07-16T06:41:27Z", "ms": -393268712659.31714 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-07-15T12:19:40+08:00", "utc": "1957-07-15T04:19:40Z", "ms": -393363619703.9587 }, "end": { "local": "1957-07-16T14:41:27+08:00", "utc": "1957-07-16T06:41:27Z", "ms": -393268712659.31714 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-07-15", "window": { "start": { "local": "1957-07-15T21:48:45+08:00", "utc": "1957-07-15T13:48:45Z", "ms": -393329475184.8852 }, "end": { "local": "1957-07-15T21:48:45+08:00", "utc": "1957-07-15T13:48:45Z", "ms": -393329475184.8852 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-07-16", "window": { "start": { "local": "1957-07-16T22:18:17+08:00", "utc": "1957-07-16T14:18:17Z", "ms": -393241302699.00696 }, "end": { "local": "1957-07-16T22:18:17+08:00", "utc": "1957-07-16T14:18:17Z", "ms": -393241302699.00696 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:20 on Mon 15 Jul to 14:41 on Tue 16 Jul.", "fact": "1957-07-15T04:19:40Z → 1957-07-16T06:41:27Z" }, { "step": "kaala", "text": "Moonrise is at 21:49 on the 15th and 22:18 on the 16th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 15th and is not on the 16th.", "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 27410 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Monday 15 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": "1957-07-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-15", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Monday 15 July. Caturthī runs from 12:20 on Mon 15 Jul to 14:41 on Tue 16 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-07-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/ekadashi?on=1957-07-23", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21982, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-07-22T23:43:47+08:00", "utc": "1957-07-22T15:43:47Z", "ms": -392717773072.2961 }, "end": { "local": "1957-07-23T22:52:11+08:00", "utc": "1957-07-23T14:52:11Z", "ms": -392634469380.3794 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-07-22T23:43:47+08:00", "utc": "1957-07-22T15:43:47Z", "ms": -392717773072.2961 }, "end": { "local": "1957-07-23T22:52:11+08:00", "utc": "1957-07-23T14:52:11Z", "ms": -392634469380.3794 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-07-23", "window": { "start": { "local": "1957-07-23T05:50:09+08:00", "utc": "1957-07-22T21:50:09Z", "ms": -392695791412.9767 }, "end": { "local": "1957-07-23T05:50:09+08:00", "utc": "1957-07-22T21:50:09Z", "ms": -392695791412.9767 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-07-24", "window": { "start": { "local": "1957-07-24T05:50:52+08:00", "utc": "1957-07-23T21:50:52Z", "ms": -392609347552.06256 }, "end": { "local": "1957-07-24T05:50:52+08:00", "utc": "1957-07-23T21:50:52Z", "ms": -392609347552.06256 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:44 on Mon 22 Jul to 22:52 on Tue 23 Jul.", "fact": "1957-07-22T15:43:47Z → 1957-07-23T14:52:11Z" }, { "step": "kaala", "text": "Sunrise is at 05:50 on the 23rd and 05:51 on the 24th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 23rd and is not on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21982 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Qingyang, 1957: Tuesday 23 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-23", "confidence": "determinate" } ], "quote": "In Qingyang, Kāmikā Ekādaśī 1957 falls on Tuesday 23 July. Ekādaśī runs from 23:44 on Mon 22 Jul to 22:52 on Tue 23 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-07-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-07-24", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 427, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-07-24T21:12:00+08:00", "utc": "1957-07-24T13:12:00Z", "ms": -392554080287.13574 }, "end": { "local": "1957-07-25T18:48:50+08:00", "utc": "1957-07-25T10:48:50Z", "ms": -392476269736.1858 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-07-24T21:12:00+08:00", "utc": "1957-07-24T13:12:00Z", "ms": -392554080287.13574 }, "end": { "local": "1957-07-25T18:48:50+08:00", "utc": "1957-07-25T10:48:50Z", "ms": -392476269736.1858 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-07-24", "window": { "start": { "local": "1957-07-24T20:00:16+08:00", "utc": "1957-07-24T12:00:16Z", "ms": -392558383519.92865 }, "end": { "local": "1957-07-24T21:19:07+08:00", "utc": "1957-07-24T13:19:07Z", "ms": -392553652819.67096 } }, "covered_min": 7, "window_min": 79, "qualifies": true }, { "local_date": "1957-07-25", "window": { "start": { "local": "1957-07-25T19:59:34+08:00", "utc": "1957-07-25T11:59:34Z", "ms": -392472025940.6612 }, "end": { "local": "1957-07-25T21:18:36+08:00", "utc": "1957-07-25T13:18:36Z", "ms": -392467283628.0565 } }, "covered_min": 0, "window_min": 79, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:12 on Wed 24 Jul to 18:49 on Thu 25 Jul.", "fact": "1957-07-24T13:12:00Z → 1957-07-25T10:48:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:00–21:19 on the 24th, 20:00–21:19 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 7 of 79 minutes on the 24th and 0 of 79 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 427 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Wednesday 24 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": "1957-07-24", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-24", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Wednesday 24 July. Trayodaśī runs from 21:12 on Wed 24 Jul to 18:49 on Thu 25 Jul and covers 7 of 79 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-07-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-07-25", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20587, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-07-25T18:48:50+08:00", "utc": "1957-07-25T10:48:50Z", "ms": -392476269736.1858 }, "end": { "local": "1957-07-26T15:50:54+08:00", "utc": "1957-07-26T07:50:54Z", "ms": -392400545573.88184 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-07-25T18:48:50+08:00", "utc": "1957-07-25T10:48:50Z", "ms": -392476269736.1858 }, "end": { "local": "1957-07-26T15:50:54+08:00", "utc": "1957-07-26T07:50:54Z", "ms": -392400545573.88184 } }, "kaala": "nishita", "days": [ { "local_date": "1957-07-25", "window": { "start": { "local": "1957-07-26T00:31:58+08:00", "utc": "1957-07-25T16:31:58Z", "ms": -392455682268.3937 }, "end": { "local": "1957-07-26T01:19:58+08:00", "utc": "1957-07-25T17:19:58Z", "ms": -392452802268.3937 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-07-26", "window": { "start": { "local": "1957-07-27T00:31:58+08:00", "utc": "1957-07-26T16:31:58Z", "ms": -392369281730.55835 }, "end": { "local": "1957-07-27T01:19:58+08:00", "utc": "1957-07-26T17:19:58Z", "ms": -392366401730.55835 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:49 on Thu 25 Jul to 15:51 on Fri 26 Jul.", "fact": "1957-07-25T10:48:50Z → 1957-07-26T07:50:54Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:32–01:20 on the 25th, 00:32–01:20 on the 26th.", "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 25th and 0 of 48 on the 26th.", "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 20587 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Thursday 25 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": "1957-07-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-25", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Thursday 25 July. Caturdaśī runs from 18:49 on Thu 25 Jul to 15:51 on Fri 26 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-07-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26447, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1957-07-29T05:10:46+08:00", "utc": "1957-07-28T21:10:46Z", "ms": -392179753769.5991 }, "end": { "local": "1957-07-30T01:37:51+08:00", "utc": "1957-07-29T17:37:51Z", "ms": -392106129308.085 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-07-29T05:10:46+08:00", "utc": "1957-07-28T21:10:46Z", "ms": -392179753769.5991 }, "end": { "local": "1957-07-30T01:37:51+08:00", "utc": "1957-07-29T17:37:51Z", "ms": -392106129308.085 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-07-29", "window": { "start": { "local": "1957-07-29T12:31:33+08:00", "utc": "1957-07-29T04:31:33Z", "ms": -392153306673.83966 }, "end": { "local": "1957-07-29T13:19:33+08:00", "utc": "1957-07-29T05:19:33Z", "ms": -392150426673.83966 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-07-30", "window": { "start": { "local": "1957-07-30T12:31:31+08:00", "utc": "1957-07-30T04:31:31Z", "ms": -392066908685.8805 }, "end": { "local": "1957-07-30T13:19:31+08:00", "utc": "1957-07-30T05:19:31Z", "ms": -392064028685.8805 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:11 on Mon 29 Jul to 01:38 on Tue 30 Jul.", "fact": "1957-07-28T21:10:46Z → 1957-07-29T17:37:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 29th, 12:32–13:20 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26447 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Qingyang, 1957: Monday 29 July.", "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": "1957-07-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-29", "confidence": "determinate" } ], "quote": "In Qingyang, Madhusravā Tṛtīyā (Hariyali Teej) 1957 falls on Monday 29 July. Tṛtīyā runs from 05:11 on Mon 29 Jul to 01:38 on Tue 30 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vinayaka-chaturthi?on=1957-07-30", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32550, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-07-30T01:37:51+08:00", "utc": "1957-07-29T17:37:51Z", "ms": -392106129308.085 }, "end": { "local": "1957-07-30T22:22:01+08:00", "utc": "1957-07-30T14:22:01Z", "ms": -392031478559.9086 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-07-30T01:37:51+08:00", "utc": "1957-07-29T17:37:51Z", "ms": -392106129308.085 }, "end": { "local": "1957-07-30T22:22:01+08:00", "utc": "1957-07-30T14:22:01Z", "ms": -392031478559.9086 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-07-29", "window": { "start": { "local": "1957-07-29T12:31:33+08:00", "utc": "1957-07-29T04:31:33Z", "ms": -392153306673.83966 }, "end": { "local": "1957-07-29T13:19:33+08:00", "utc": "1957-07-29T05:19:33Z", "ms": -392150426673.83966 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-07-30", "window": { "start": { "local": "1957-07-30T12:31:31+08:00", "utc": "1957-07-30T04:31:31Z", "ms": -392066908685.8805 }, "end": { "local": "1957-07-30T13:19:31+08:00", "utc": "1957-07-30T05:19:31Z", "ms": -392064028685.8805 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:38 on Tue 30 Jul to 22:22 on Tue 30 Jul.", "fact": "1957-07-29T17:37:51Z → 1957-07-30T14:22:01Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 29th, 12:32–13:20 on the 30th.", "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 29th and 48 of 48 on the 30th.", "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 32550 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Tuesday 30 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": "1957-07-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-30", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Tuesday 30 July. Caturthī runs from 01:38 on Tue 30 Jul to 22:22 on Tue 30 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-07-30", "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/1957/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-07-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22334, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1957-07-30T22:22:01+08:00", "utc": "1957-07-30T14:22:01Z", "ms": -392031478559.9086 }, "end": { "local": "1957-07-31T19:31:43+08:00", "utc": "1957-07-31T11:31:43Z", "ms": -391955296815.072 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-07-30T22:22:01+08:00", "utc": "1957-07-30T14:22:01Z", "ms": -392031478559.9086 }, "end": { "local": "1957-07-31T19:31:43+08:00", "utc": "1957-07-31T11:31:43Z", "ms": -391955296815.072 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-07-30", "window": { "start": { "local": "1957-07-30T12:31:31+08:00", "utc": "1957-07-30T04:31:31Z", "ms": -392066908685.8805 }, "end": { "local": "1957-07-30T13:19:31+08:00", "utc": "1957-07-30T05:19:31Z", "ms": -392064028685.8805 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-07-31", "window": { "start": { "local": "1957-07-31T12:31:29+08:00", "utc": "1957-07-31T04:31:29Z", "ms": -391980511309.94037 }, "end": { "local": "1957-07-31T13:19:29+08:00", "utc": "1957-07-31T05:19:29Z", "ms": -391977631309.94037 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:22 on Tue 30 Jul to 19:32 on Wed 31 Jul.", "fact": "1957-07-30T14:22:01Z → 1957-07-31T11:31:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 30th, 12:31–13:19 on the 31st.", "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 30th and 48 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22334 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Qingyang, 1957: Wednesday 31 July.", "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": "1957-07-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-07-31", "confidence": "determinate" } ], "quote": "In Qingyang, Nāga Pañcamī 1957 falls on Wednesday 31 July. Pañcamī runs from 22:22 on Tue 30 Jul to 19:32 on Wed 31 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-08-06", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29389, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-08-05T14:09:51+08:00", "utc": "1957-08-05T06:09:51Z", "ms": -391542608698.084 }, "end": { "local": "1957-08-06T14:48:45+08:00", "utc": "1957-08-06T06:48:45Z", "ms": -391453875059.2334 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-08-05T14:09:51+08:00", "utc": "1957-08-05T06:09:51Z", "ms": -391542608698.084 }, "end": { "local": "1957-08-06T14:48:45+08:00", "utc": "1957-08-06T06:48:45Z", "ms": -391453875059.2334 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-08-05", "window": { "start": { "local": "1957-08-05T06:00:02+08:00", "utc": "1957-08-04T22:00:02Z", "ms": -391571997837.046 }, "end": { "local": "1957-08-05T06:00:02+08:00", "utc": "1957-08-04T22:00:02Z", "ms": -391571997837.046 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-08-06", "window": { "start": { "local": "1957-08-06T06:00:49+08:00", "utc": "1957-08-05T22:00:49Z", "ms": -391485550958.8824 }, "end": { "local": "1957-08-06T06:00:49+08:00", "utc": "1957-08-05T22:00:49Z", "ms": -391485550958.8824 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:10 on Mon 5 Aug to 14:49 on Tue 6 Aug.", "fact": "1957-08-05T06:09:51Z → 1957-08-06T06:48:45Z" }, { "step": "kaala", "text": "Sunrise is at 06:00 on the 5th and 06:01 on the 6th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29389 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Qingyang, 1957: Tuesday 6 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-08-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-06", "confidence": "determinate" } ], "quote": "In Qingyang, Putradā Ekādaśī 1957 falls on Tuesday 6 August. Ekādaśī runs from 14:10 on Mon 5 Aug to 14:49 on Tue 6 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-08-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5385, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1957-08-06T14:48:45+08:00", "utc": "1957-08-06T06:48:45Z", "ms": -391453875059.2334 }, "end": { "local": "1957-08-07T15:53:48+08:00", "utc": "1957-08-07T07:53:48Z", "ms": -391363571545.3695 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-08-06T14:48:45+08:00", "utc": "1957-08-06T06:48:45Z", "ms": -391453875059.2334 }, "end": { "local": "1957-08-07T15:53:48+08:00", "utc": "1957-08-07T07:53:48Z", "ms": -391363571545.3695 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-06", "window": { "start": { "local": "1957-08-06T12:31:00+08:00", "utc": "1957-08-06T04:31:00Z", "ms": -391462139984.49835 }, "end": { "local": "1957-08-06T13:19:00+08:00", "utc": "1957-08-06T05:19:00Z", "ms": -391459259984.49835 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-08-07", "window": { "start": { "local": "1957-08-07T12:30:53+08:00", "utc": "1957-08-07T04:30:53Z", "ms": -391375746895.81555 }, "end": { "local": "1957-08-07T13:18:53+08:00", "utc": "1957-08-07T05:18:53Z", "ms": -391372866895.81555 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:49 on Tue 6 Aug to 15:54 on Wed 7 Aug.", "fact": "1957-08-06T06:48:45Z → 1957-08-07T07:53:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 6th, 12:31–13:19 on the 7th.", "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 6th and 48 of 48 on the 7th.", "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 5385 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Qingyang, 1957: Wednesday 7 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": "1957-08-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-07", "confidence": "determinate" } ], "quote": "In Qingyang, Dāmodara Dvādaśī 1957 falls on Wednesday 7 August. Dvādaśī runs from 14:49 on Tue 6 Aug to 15:54 on Wed 7 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/pradosha-vrata?on=1957-08-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8773, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-08-07T15:53:48+08:00", "utc": "1957-08-07T07:53:48Z", "ms": -391363571545.3695 }, "end": { "local": "1957-08-08T17:20:56+08:00", "utc": "1957-08-08T09:20:56Z", "ms": -391271944483.98914 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-08-07T15:53:48+08:00", "utc": "1957-08-07T07:53:48Z", "ms": -391363571545.3695 }, "end": { "local": "1957-08-08T17:20:56+08:00", "utc": "1957-08-08T09:20:56Z", "ms": -391271944483.98914 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-08-07", "window": { "start": { "local": "1957-08-07T19:48:10+08:00", "utc": "1957-08-07T11:48:10Z", "ms": -391349509774.3214 }, "end": { "local": "1957-08-07T21:10:04+08:00", "utc": "1957-08-07T13:10:04Z", "ms": -391344596074.67096 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "1957-08-08", "window": { "start": { "local": "1957-08-08T19:47:08+08:00", "utc": "1957-08-08T11:47:08Z", "ms": -391263171776.5469 }, "end": { "local": "1957-08-08T21:09:16+08:00", "utc": "1957-08-08T13:09:16Z", "ms": -391258243539.7974 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:54 on Wed 7 Aug to 17:21 on Thu 8 Aug.", "fact": "1957-08-07T07:53:48Z → 1957-08-08T09:20:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:48–21:10 on the 7th, 19:47–21:09 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 82 of 82 minutes on the 7th and 0 of 82 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8773 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Wednesday 7 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-08-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-07", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Wednesday 7 August. Trayodaśī runs from 15:54 on Wed 7 Aug to 17:21 on Thu 8 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-08-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7302, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-08-09T19:06:41+08:00", "utc": "1957-08-09T11:06:41Z", "ms": -391179198867.844 }, "end": { "local": "1957-08-10T21:08:15+08:00", "utc": "1957-08-10T13:08:15Z", "ms": -391085505183.7842 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1957-08-10T08:05:40+08:00", "utc": "1957-08-10T00:05:40Z", "ms": -391132460476.8523 }, "end": { "local": "1957-08-10T21:08:15+08:00", "utc": "1957-08-10T13:08:15Z", "ms": -391085505183.7842 } }, "kaala": "day", "days": [ { "local_date": "1957-08-09", "window": { "start": { "local": "1957-08-09T06:03:10+08:00", "utc": "1957-08-08T22:03:10Z", "ms": -391226210000.9259 }, "end": { "local": "1957-08-10T06:03:57+08:00", "utc": "1957-08-09T22:03:57Z", "ms": -391139762951.05707 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1957-08-10", "window": { "start": { "local": "1957-08-10T06:03:57+08:00", "utc": "1957-08-09T22:03:57Z", "ms": -391139762951.05707 }, "end": { "local": "1957-08-11T06:04:44+08:00", "utc": "1957-08-10T22:04:44Z", "ms": -391053315887.92737 } }, "covered_min": 783, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:07 on Fri 9 Aug to 21:08 on Sat 10 Aug. Its second half begins at 08:06 on Sat 10 Aug.", "fact": "1957-08-09T11:06:41Z → 1957-08-10T13:08:15Z · second half from 1957-08-10T00:05:40Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:03 on the 9th, and from 06:04 on the 10th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The second half of Pūrṇimā must be present during the day. It covers 0 of 1441 minutes on the 9th and 783 of 1441 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7302 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Qingyang, 1957: Saturday 10 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "raksha-bandhana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana" } ], "kaala": "day", "priority": "unstated", "when_absent": "unstated", "half": "second" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-10", "confidence": "determinate" } ], "quote": "In Qingyang, Rakṣā Bandhana (Rakhi) 1957 falls on Saturday 10 August. The second half of Pūrṇimā runs from 08:06 on Sat 10 Aug to 21:08 on Sat 10 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20884, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-08-09T19:06:41+08:00", "utc": "1957-08-09T11:06:41Z", "ms": -391179198867.844 }, "end": { "local": "1957-08-10T21:08:15+08:00", "utc": "1957-08-10T13:08:15Z", "ms": -391085505183.7842 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1957-08-09T19:06:41+08:00", "utc": "1957-08-09T11:06:41Z", "ms": -391179198867.844 }, "end": { "local": "1957-08-10T21:08:15+08:00", "utc": "1957-08-10T13:08:15Z", "ms": -391085505183.7842 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-09", "window": { "start": { "local": "1957-08-09T12:30:38+08:00", "utc": "1957-08-09T04:30:38Z", "ms": -391202962494.4646 }, "end": { "local": "1957-08-09T13:18:38+08:00", "utc": "1957-08-09T05:18:38Z", "ms": -391200082494.4646 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-08-10", "window": { "start": { "local": "1957-08-10T12:30:29+08:00", "utc": "1957-08-10T04:30:29Z", "ms": -391116571165.338 }, "end": { "local": "1957-08-10T13:18:29+08:00", "utc": "1957-08-10T05:18:29Z", "ms": -391113691165.338 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 19:07 on Fri 9 Aug to 21:08 on Sat 10 Aug.", "fact": "1957-08-09T11:06:41Z → 1957-08-10T13:08:15Z" }, { "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": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20884 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Qingyang, 1957: Saturday 10 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": "1957-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-10", "confidence": "determinate" } ], "quote": "In Qingyang, Ṛṣi Tarpaṇa 1957 falls on Saturday 10 August. Pūrṇimā runs from 19:07 on Fri 9 Aug to 21:08 on Sat 10 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12696, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1957-08-11T23:22:48+08:00", "utc": "1957-08-11T15:22:48Z", "ms": -390991032033.6258 }, "end": { "local": "1957-08-13T01:46:45+08:00", "utc": "1957-08-12T17:46:45Z", "ms": -390895994929.4008 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-11T23:22:48+08:00", "utc": "1957-08-11T15:22:48Z", "ms": -390991032033.6258 }, "end": { "local": "1957-08-13T01:46:45+08:00", "utc": "1957-08-12T17:46:45Z", "ms": -390895994929.4008 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-08-11", "window": { "start": { "local": "1957-08-11T19:51:12+08:00", "utc": "1957-08-11T11:51:12Z", "ms": -391003727693.18207 }, "end": { "local": "1957-08-11T19:51:12+08:00", "utc": "1957-08-11T11:51:12Z", "ms": -391003727693.18207 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-08-12", "window": { "start": { "local": "1957-08-12T20:21:16+08:00", "utc": "1957-08-12T12:21:16Z", "ms": -390915524444.11194 }, "end": { "local": "1957-08-12T20:21:16+08:00", "utc": "1957-08-12T12:21:16Z", "ms": -390915524444.11194 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 23:23 on Sun 11 Aug to 01:47 on Tue 13 Aug.", "fact": "1957-08-11T15:22:48Z → 1957-08-12T17:46:45Z" }, { "step": "kaala", "text": "Moonrise is at 19:51 on the 11th and 20:21 on the 12th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 11th and is on the 12th.", "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 12696 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Qingyang, 1957: Monday 12 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": "1957-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-12", "confidence": "determinate" } ], "quote": "In Qingyang, Aśūnya Śayana Vrata 1957 falls on Monday 12 August. Dvitīyā runs from 23:23 on Sun 11 Aug to 01:47 on Tue 13 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29695, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1957-08-13T01:46:45+08:00", "utc": "1957-08-12T17:46:45Z", "ms": -390895994929.4008 }, "end": { "local": "1957-08-14T04:14:54+08:00", "utc": "1957-08-13T20:14:54Z", "ms": -390800706426.5264 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-13T01:46:45+08:00", "utc": "1957-08-12T17:46:45Z", "ms": -390895994929.4008 }, "end": { "local": "1957-08-14T04:14:54+08:00", "utc": "1957-08-13T20:14:54Z", "ms": -390800706426.5264 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-13", "window": { "start": { "local": "1957-08-13T12:29:59+08:00", "utc": "1957-08-13T04:29:59Z", "ms": -390857400550.27484 }, "end": { "local": "1957-08-13T13:17:59+08:00", "utc": "1957-08-13T05:17:59Z", "ms": -390854520550.27484 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-08-14", "window": { "start": { "local": "1957-08-14T12:29:49+08:00", "utc": "1957-08-14T04:29:49Z", "ms": -390771011434.4009 }, "end": { "local": "1957-08-14T13:17:49+08:00", "utc": "1957-08-14T05:17:49Z", "ms": -390768131434.4009 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 01:47 on Tue 13 Aug to 04:15 on Wed 14 Aug.", "fact": "1957-08-12T17:46:45Z → 1957-08-13T20:14:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 13th, 12:30–13:18 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29695 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Qingyang, 1957: Tuesday 13 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": "1957-08-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-13", "confidence": "determinate" } ], "quote": "In Qingyang, Kajjalī Tṛtīyā (Kajari Teej) 1957 falls on Tuesday 13 August. Tṛtīyā runs from 01:47 on Tue 13 Aug to 04:15 on Wed 14 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30793, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-08-14T04:14:54+08:00", "utc": "1957-08-13T20:14:54Z", "ms": -390800706426.5264 }, "end": { "local": "1957-08-15T06:39:51+08:00", "utc": "1957-08-14T22:39:51Z", "ms": -390705609371.9787 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-14T04:14:54+08:00", "utc": "1957-08-13T20:14:54Z", "ms": -390800706426.5264 }, "end": { "local": "1957-08-15T06:39:51+08:00", "utc": "1957-08-14T22:39:51Z", "ms": -390705609371.9787 } }, "kaala": "sayahna", "days": [ { "local_date": "1957-08-13", "window": { "start": { "local": "1957-08-13T16:58:36+08:00", "utc": "1957-08-13T08:58:36Z", "ms": -390841283824.9913 }, "end": { "local": "1957-08-13T19:41:41+08:00", "utc": "1957-08-13T11:41:41Z", "ms": -390831499341.4689 } }, "covered_min": 0, "window_min": 163, "qualifies": false }, { "local_date": "1957-08-14", "window": { "start": { "local": "1957-08-14T16:57:51+08:00", "utc": "1957-08-14T08:57:51Z", "ms": -390754929469.18677 }, "end": { "local": "1957-08-14T19:40:32+08:00", "utc": "1957-08-14T11:40:32Z", "ms": -390745168159.04407 } }, "covered_min": 163, "window_min": 163, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:15 on Wed 14 Aug to 06:40 on Thu 15 Aug.", "fact": "1957-08-13T20:14:54Z → 1957-08-14T22:39:51Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:59–19:42 on the 13th, 16:58–19:41 on the 14th.", "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 163 minutes on the 13th and 163 of 163 on the 14th.", "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 30793 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Qingyang, 1957: Wednesday 14 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": "1957-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-14", "confidence": "determinate" } ], "quote": "In Qingyang, Bahulā Caturthī 1957 falls on Wednesday 14 August. Caturthī runs from 04:15 on Wed 14 Aug to 06:40 on Thu 15 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-08-14", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26654, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-08-14T04:14:54+08:00", "utc": "1957-08-13T20:14:54Z", "ms": -390800706426.5264 }, "end": { "local": "1957-08-15T06:39:51+08:00", "utc": "1957-08-14T22:39:51Z", "ms": -390705609371.9787 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-14T04:14:54+08:00", "utc": "1957-08-13T20:14:54Z", "ms": -390800706426.5264 }, "end": { "local": "1957-08-15T06:39:51+08:00", "utc": "1957-08-14T22:39:51Z", "ms": -390705609371.9787 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-08-13", "window": { "start": { "local": "1957-08-13T20:50:40+08:00", "utc": "1957-08-13T12:50:40Z", "ms": -390827360343.25995 }, "end": { "local": "1957-08-13T20:50:40+08:00", "utc": "1957-08-13T12:50:40Z", "ms": -390827360343.25995 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-08-14", "window": { "start": { "local": "1957-08-14T21:20:20+08:00", "utc": "1957-08-14T13:20:20Z", "ms": -390739179521.83527 }, "end": { "local": "1957-08-14T21:20:20+08:00", "utc": "1957-08-14T13:20:20Z", "ms": -390739179521.83527 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:15 on Wed 14 Aug to 06:40 on Thu 15 Aug.", "fact": "1957-08-13T20:14:54Z → 1957-08-14T22:39:51Z" }, { "step": "kaala", "text": "Moonrise is at 20:51 on the 13th and 21:20 on the 14th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 13th and is on the 14th.", "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 26654 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Wednesday 14 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": "1957-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-14", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Wednesday 14 August. Caturthī runs from 04:15 on Wed 14 Aug to 06:40 on Thu 15 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-08-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6511, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1957-08-16T08:52:05+08:00", "utc": "1957-08-16T00:52:05Z", "ms": -390611275337.6673 }, "end": { "local": "1957-08-17T10:40:42+08:00", "utc": "1957-08-17T02:40:42Z", "ms": -390518357783.4545 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-16T08:52:05+08:00", "utc": "1957-08-16T00:52:05Z", "ms": -390611275337.6673 }, "end": { "local": "1957-08-17T10:40:42+08:00", "utc": "1957-08-17T02:40:42Z", "ms": -390518357783.4545 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-16", "window": { "start": { "local": "1957-08-16T12:29:25+08:00", "utc": "1957-08-16T04:29:25Z", "ms": -390598234768.9868 }, "end": { "local": "1957-08-16T13:17:25+08:00", "utc": "1957-08-16T05:17:25Z", "ms": -390595354768.9868 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-08-17", "window": { "start": { "local": "1957-08-17T12:29:13+08:00", "utc": "1957-08-17T04:29:13Z", "ms": -390511847195.878 }, "end": { "local": "1957-08-17T13:17:13+08:00", "utc": "1957-08-17T05:17:13Z", "ms": -390508967195.878 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 08:52 on Fri 16 Aug to 10:41 on Sat 17 Aug.", "fact": "1957-08-16T00:52:05Z → 1957-08-17T02:40:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 16th, 12:29–13:17 on the 17th.", "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 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6511 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Qingyang, 1957: Friday 16 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": "1957-08-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-16", "confidence": "determinate" } ], "quote": "In Qingyang, Hala Ṣaṣṭhī 1957 falls on Friday 16 August. Ṣaṣṭhī runs from 08:52 on Fri 16 Aug to 10:41 on Sat 17 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2045, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1957-08-17T10:40:42+08:00", "utc": "1957-08-17T02:40:42Z", "ms": -390518357783.4545 }, "end": { "local": "1957-08-18T11:54:55+08:00", "utc": "1957-08-18T03:54:55Z", "ms": -390427505288.85876 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-17T10:40:42+08:00", "utc": "1957-08-17T02:40:42Z", "ms": -390518357783.4545 }, "end": { "local": "1957-08-18T11:54:55+08:00", "utc": "1957-08-18T03:54:55Z", "ms": -390427505288.85876 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-17", "window": { "start": { "local": "1957-08-17T12:29:13+08:00", "utc": "1957-08-17T04:29:13Z", "ms": -390511847195.878 }, "end": { "local": "1957-08-17T13:17:13+08:00", "utc": "1957-08-17T05:17:13Z", "ms": -390508967195.878 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-08-18", "window": { "start": { "local": "1957-08-18T12:29:00+08:00", "utc": "1957-08-18T04:29:00Z", "ms": -390425460113.13385 }, "end": { "local": "1957-08-18T13:17:00+08:00", "utc": "1957-08-18T05:17:00Z", "ms": -390422580113.13385 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 10:41 on Sat 17 Aug to 11:55 on Sun 18 Aug.", "fact": "1957-08-17T02:40:42Z → 1957-08-18T03:54:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 17th, 12:29–13:17 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2045 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Qingyang, 1957: Saturday 17 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": "1957-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-17", "confidence": "determinate" } ], "quote": "In Qingyang, Śītalā Saptamī 1957 falls on Saturday 17 August. Saptamī runs from 10:41 on Sat 17 Aug to 11:55 on Sun 18 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38238, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1957-08-18T11:54:55+08:00", "utc": "1957-08-18T03:54:55Z", "ms": -390427505288.85876 }, "end": { "local": "1957-08-19T12:25:42+08:00", "utc": "1957-08-19T04:25:42Z", "ms": -390339258318.2048 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-18T11:54:55+08:00", "utc": "1957-08-18T03:54:55Z", "ms": -390427505288.85876 }, "end": { "local": "1957-08-19T12:25:42+08:00", "utc": "1957-08-19T04:25:42Z", "ms": -390339258318.2048 } }, "kaala": "nishita", "days": [ { "local_date": "1957-08-17", "window": { "start": { "local": "1957-08-18T00:29:36+08:00", "utc": "1957-08-17T16:29:36Z", "ms": -390468623729.08984 }, "end": { "local": "1957-08-18T01:17:36+08:00", "utc": "1957-08-17T17:17:36Z", "ms": -390465743729.08984 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-08-18", "window": { "start": { "local": "1957-08-19T00:29:23+08:00", "utc": "1957-08-18T16:29:23Z", "ms": -390382236667.8248 }, "end": { "local": "1957-08-19T01:17:23+08:00", "utc": "1957-08-18T17:17:23Z", "ms": -390379356667.8248 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:55 on Sun 18 Aug to 12:26 on Mon 19 Aug.", "fact": "1957-08-18T03:54:55Z → 1957-08-19T04:25:42Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:30–01:18 on the 17th, 00:29–01:17 on the 18th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during niśītha. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "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 38238 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Qingyang, 1957: Sunday 18 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": "1957-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-18", "confidence": "determinate" } ], "quote": "In Qingyang, Janmāṣṭamī 1957 falls on Sunday 18 August. Aṣṭamī runs from 11:55 on Sun 18 Aug to 12:26 on Mon 19 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-08-22", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10010, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-08-21T10:58:01+08:00", "utc": "1957-08-21T02:58:01Z", "ms": -390171718772.4286 }, "end": { "local": "1957-08-22T09:00:10+08:00", "utc": "1957-08-22T01:00:10Z", "ms": -390092389549.8004 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-21T10:58:01+08:00", "utc": "1957-08-21T02:58:01Z", "ms": -390171718772.4286 }, "end": { "local": "1957-08-22T09:00:10+08:00", "utc": "1957-08-22T01:00:10Z", "ms": -390092389549.8004 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-08-21", "window": { "start": { "local": "1957-08-21T06:12:34+08:00", "utc": "1957-08-20T22:12:34Z", "ms": -390188846249.84644 }, "end": { "local": "1957-08-21T06:12:34+08:00", "utc": "1957-08-20T22:12:34Z", "ms": -390188846249.84644 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-08-22", "window": { "start": { "local": "1957-08-22T06:13:20+08:00", "utc": "1957-08-21T22:13:20Z", "ms": -390102399519.9704 }, "end": { "local": "1957-08-22T06:13:20+08:00", "utc": "1957-08-21T22:13:20Z", "ms": -390102399519.9704 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:58 on Wed 21 Aug to 09:00 on Thu 22 Aug.", "fact": "1957-08-21T02:58:01Z → 1957-08-22T01:00:10Z" }, { "step": "kaala", "text": "Sunrise is at 06:13 on the 21st and 06:13 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10010 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Qingyang, 1957: Thursday 22 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-22", "confidence": "determinate" } ], "quote": "In Qingyang, Ajā Ekādaśī 1957 falls on Thursday 22 August. Ekādaśī runs from 10:58 on Wed 21 Aug to 09:00 on Thu 22 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-08-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-08-23", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22138, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-08-23T06:19:33+08:00", "utc": "1957-08-22T22:19:33Z", "ms": -390015627354.65704 }, "end": { "local": "1957-08-24T03:04:30+08:00", "utc": "1957-08-23T19:04:30Z", "ms": -389940929596.7183 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-23T06:19:33+08:00", "utc": "1957-08-22T22:19:33Z", "ms": -390015627354.65704 }, "end": { "local": "1957-08-24T03:04:30+08:00", "utc": "1957-08-23T19:04:30Z", "ms": -389940929596.7183 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-08-22", "window": { "start": { "local": "1957-08-22T19:30:47+08:00", "utc": "1957-08-22T11:30:47Z", "ms": -390054553372.55615 }, "end": { "local": "1957-08-22T20:56:33+08:00", "utc": "1957-08-22T12:56:33Z", "ms": -390049406636.9388 } }, "covered_min": 0, "window_min": 86, "qualifies": false }, { "local_date": "1957-08-23", "window": { "start": { "local": "1957-08-23T19:29:30+08:00", "utc": "1957-08-23T11:29:30Z", "ms": -389968230421.9576 }, "end": { "local": "1957-08-23T20:55:33+08:00", "utc": "1957-08-23T12:55:33Z", "ms": -389963067200.75305 } }, "covered_min": 86, "window_min": 86, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:20 on Fri 23 Aug to 03:05 on Sat 24 Aug.", "fact": "1957-08-22T22:19:33Z → 1957-08-23T19:04:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:31–20:57 on the 22nd, 19:29–20:56 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 86 minutes on the 22nd and 86 of 86 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 22138 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Friday 23 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": "1957-08-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-23", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Friday 23 August. Trayodaśī runs from 06:20 on Fri 23 Aug to 03:05 on Sat 24 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-08-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-08-23", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-23", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3767, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-08-24T03:04:30+08:00", "utc": "1957-08-23T19:04:30Z", "ms": -389940929596.7183 }, "end": { "local": "1957-08-24T23:25:09+08:00", "utc": "1957-08-24T15:25:09Z", "ms": -389867690718.6674 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-24T03:04:30+08:00", "utc": "1957-08-23T19:04:30Z", "ms": -389940929596.7183 }, "end": { "local": "1957-08-24T23:25:09+08:00", "utc": "1957-08-24T15:25:09Z", "ms": -389867690718.6674 } }, "kaala": "nishita", "days": [ { "local_date": "1957-08-23", "window": { "start": { "local": "1957-08-24T00:28:12+08:00", "utc": "1957-08-23T16:28:12Z", "ms": -389950308342.4405 }, "end": { "local": "1957-08-24T01:16:12+08:00", "utc": "1957-08-23T17:16:12Z", "ms": -389947428342.4405 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-08-24", "window": { "start": { "local": "1957-08-25T00:27:56+08:00", "utc": "1957-08-24T16:27:56Z", "ms": -389863923997.5443 }, "end": { "local": "1957-08-25T01:15:56+08:00", "utc": "1957-08-24T17:15:56Z", "ms": -389861043997.5443 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:05 on Sat 24 Aug to 23:25 on Sat 24 Aug.", "fact": "1957-08-23T19:04:30Z → 1957-08-24T15:25:09Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:28–01:16 on the 23rd, 00:28–01:16 on the 24th.", "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 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 3767 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Friday 23 August.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-08-23", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-23", "confidence": "boundary" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Friday 23 August. Caturdaśī runs from 03:05 on Sat 24 Aug to 23:25 on Sat 24 Aug, and reaches niśītha on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-08-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9038, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-08-24T03:04:30+08:00", "utc": "1957-08-23T19:04:30Z", "ms": -389940929596.7183 }, "end": { "local": "1957-08-24T23:25:09+08:00", "utc": "1957-08-24T15:25:09Z", "ms": -389867690718.6674 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-24T03:04:30+08:00", "utc": "1957-08-23T19:04:30Z", "ms": -389940929596.7183 }, "end": { "local": "1957-08-24T23:25:09+08:00", "utc": "1957-08-24T15:25:09Z", "ms": -389867690718.6674 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-08-23", "window": { "start": { "local": "1957-08-23T19:29:30+08:00", "utc": "1957-08-23T11:29:30Z", "ms": -389968230421.9576 }, "end": { "local": "1957-08-23T20:55:33+08:00", "utc": "1957-08-23T12:55:33Z", "ms": -389963067200.75305 } }, "covered_min": 0, "window_min": 86, "qualifies": false }, { "local_date": "1957-08-24", "window": { "start": { "local": "1957-08-24T19:28:12+08:00", "utc": "1957-08-24T11:28:12Z", "ms": -389881908245.6409 }, "end": { "local": "1957-08-24T20:54:32+08:00", "utc": "1957-08-24T12:54:32Z", "ms": -389876728446.1485 } }, "covered_min": 86, "window_min": 86, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:05 on Sat 24 Aug to 23:25 on Sat 24 Aug.", "fact": "1957-08-23T19:04:30Z → 1957-08-24T15:25:09Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:29–20:56 on the 23rd, 19:28–20:55 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 0 of 86 minutes on the 23rd and 86 of 86 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9038 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Qingyang, 1957: Saturday 24 August.", "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": "1957-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-24", "confidence": "determinate" } ], "quote": "In Qingyang, Aghora Caturdaśī 1957 falls on Saturday 24 August. Caturdaśī runs from 03:05 on Sat 24 Aug to 23:25 on Sat 24 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8582, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1957-08-25T19:32:32+08:00", "utc": "1957-08-25T11:32:32Z", "ms": -389795247857.6894 }, "end": { "local": "1957-08-26T15:38:02+08:00", "utc": "1957-08-26T07:38:02Z", "ms": -389722917815.24457 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-25T19:32:32+08:00", "utc": "1957-08-25T11:32:32Z", "ms": -389795247857.6894 }, "end": { "local": "1957-08-26T15:38:02+08:00", "utc": "1957-08-26T07:38:02Z", "ms": -389722917815.24457 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-25", "window": { "start": { "local": "1957-08-25T12:27:17+08:00", "utc": "1957-08-25T04:27:17Z", "ms": -389820763284.0365 }, "end": { "local": "1957-08-25T13:15:17+08:00", "utc": "1957-08-25T05:15:17Z", "ms": -389817883284.0365 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-08-26", "window": { "start": { "local": "1957-08-26T12:27:00+08:00", "utc": "1957-08-26T04:27:00Z", "ms": -389734379719.25134 }, "end": { "local": "1957-08-26T13:15:00+08:00", "utc": "1957-08-26T05:15:00Z", "ms": -389731499719.25134 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 19:33 on Sun 25 Aug to 15:38 on Mon 26 Aug.", "fact": "1957-08-25T11:32:32Z → 1957-08-26T07:38:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 25th, 12:27–13:15 on the 26th.", "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 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8582 s" }, { "step": "ruling", "text": "Rudra Vrata, Qingyang, 1957: Monday 26 August.", "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": "1957-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-26", "confidence": "determinate" } ], "quote": "In Qingyang, Rudra Vrata 1957 falls on Monday 26 August. Pratipadā runs from 19:33 on Sun 25 Aug to 15:38 on Mon 26 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2031, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1957-08-27T11:52:52+08:00", "utc": "1957-08-27T03:52:52Z", "ms": -389650027902.14557 }, "end": { "local": "1957-08-28T08:27:35+08:00", "utc": "1957-08-28T00:27:35Z", "ms": -389575944796.41785 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-27T11:52:52+08:00", "utc": "1957-08-27T03:52:52Z", "ms": -389650027902.14557 }, "end": { "local": "1957-08-28T08:27:35+08:00", "utc": "1957-08-28T00:27:35Z", "ms": -389575944796.41785 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-27", "window": { "start": { "local": "1957-08-27T12:26:43+08:00", "utc": "1957-08-27T04:26:43Z", "ms": -389647996550.9567 }, "end": { "local": "1957-08-27T13:14:43+08:00", "utc": "1957-08-27T05:14:43Z", "ms": -389645116550.9567 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-08-28", "window": { "start": { "local": "1957-08-28T12:26:26+08:00", "utc": "1957-08-28T04:26:26Z", "ms": -389561613769.33777 }, "end": { "local": "1957-08-28T13:14:26+08:00", "utc": "1957-08-28T05:14:26Z", "ms": -389558733769.33777 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 11:53 on Tue 27 Aug to 08:28 on Wed 28 Aug.", "fact": "1957-08-27T03:52:52Z → 1957-08-28T00:27:35Z" }, { "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": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2031 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Qingyang, 1957: Tuesday 27 August.", "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": "1957-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-27", "confidence": "determinate" } ], "quote": "In Qingyang, Haritālikā Vrata (Hartalika Teej) 1957 falls on Tuesday 27 August. Tṛtīyā runs from 11:53 on Tue 27 Aug to 08:28 on Wed 28 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14331, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-08-28T08:27:35+08:00", "utc": "1957-08-28T00:27:35Z", "ms": -389575944796.41785 }, "end": { "local": "1957-08-29T05:31:35+08:00", "utc": "1957-08-28T21:31:35Z", "ms": -389500105093.4775 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-28T08:27:35+08:00", "utc": "1957-08-28T00:27:35Z", "ms": -389575944796.41785 }, "end": { "local": "1957-08-29T05:31:35+08:00", "utc": "1957-08-28T21:31:35Z", "ms": -389500105093.4775 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-28", "window": { "start": { "local": "1957-08-28T12:26:26+08:00", "utc": "1957-08-28T04:26:26Z", "ms": -389561613769.33777 }, "end": { "local": "1957-08-28T13:14:26+08:00", "utc": "1957-08-28T05:14:26Z", "ms": -389558733769.33777 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-08-29", "window": { "start": { "local": "1957-08-29T12:26:09+08:00", "utc": "1957-08-29T04:26:09Z", "ms": -389475231363.30054 }, "end": { "local": "1957-08-29T13:14:09+08:00", "utc": "1957-08-29T05:14:09Z", "ms": -389472351363.30054 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:28 on Wed 28 Aug to 05:32 on Thu 29 Aug.", "fact": "1957-08-28T00:27:35Z → 1957-08-28T21:31:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 28th, 12:26–13:14 on the 29th.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 14331 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Qingyang, 1957: Wednesday 28 August.", "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": "1957-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-28", "confidence": "determinate" } ], "quote": "In Qingyang, Gaṇeśa Caturthī 1957 falls on Wednesday 28 August. Caturthī runs from 08:28 on Wed 28 Aug to 05:32 on Thu 29 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24874, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1957-08-29T05:31:35+08:00", "utc": "1957-08-28T21:31:35Z", "ms": -389500105093.4775 }, "end": { "local": "1957-08-30T03:12:31+08:00", "utc": "1957-08-29T19:12:31Z", "ms": -389422049097.5602 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-29T05:31:35+08:00", "utc": "1957-08-28T21:31:35Z", "ms": -389500105093.4775 }, "end": { "local": "1957-08-30T03:12:31+08:00", "utc": "1957-08-29T19:12:31Z", "ms": -389422049097.5602 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-29", "window": { "start": { "local": "1957-08-29T12:26:09+08:00", "utc": "1957-08-29T04:26:09Z", "ms": -389475231363.30054 }, "end": { "local": "1957-08-29T13:14:09+08:00", "utc": "1957-08-29T05:14:09Z", "ms": -389472351363.30054 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-08-30", "window": { "start": { "local": "1957-08-30T12:25:51+08:00", "utc": "1957-08-30T04:25:51Z", "ms": -389388849320.26807 }, "end": { "local": "1957-08-30T13:13:51+08:00", "utc": "1957-08-30T05:13:51Z", "ms": -389385969320.26807 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 05:32 on Thu 29 Aug to 03:13 on Fri 30 Aug.", "fact": "1957-08-28T21:31:35Z → 1957-08-29T19:12:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 29th, 12:26–13:14 on the 30th.", "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 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 24874 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Qingyang, 1957: Thursday 29 August.", "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": "1957-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-29", "confidence": "determinate" } ], "quote": "In Qingyang, Ṛṣi Pañcamī 1957 falls on Thursday 29 August. Pañcamī runs from 05:32 on Thu 29 Aug to 03:13 on Fri 30 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33200, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1957-08-30T03:12:31+08:00", "utc": "1957-08-29T19:12:31Z", "ms": -389422049097.5602 }, "end": { "local": "1957-08-31T01:35:44+08:00", "utc": "1957-08-30T17:35:44Z", "ms": -389341455810.0932 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-30T03:12:31+08:00", "utc": "1957-08-29T19:12:31Z", "ms": -389422049097.5602 }, "end": { "local": "1957-08-31T01:35:44+08:00", "utc": "1957-08-30T17:35:44Z", "ms": -389341455810.0932 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-30", "window": { "start": { "local": "1957-08-30T12:25:51+08:00", "utc": "1957-08-30T04:25:51Z", "ms": -389388849320.26807 }, "end": { "local": "1957-08-30T13:13:51+08:00", "utc": "1957-08-30T05:13:51Z", "ms": -389385969320.26807 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-08-31", "window": { "start": { "local": "1957-08-31T12:25:32+08:00", "utc": "1957-08-31T04:25:32Z", "ms": -389302467626.1747 }, "end": { "local": "1957-08-31T13:13:32+08:00", "utc": "1957-08-31T05:13:32Z", "ms": -389299587626.1747 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 03:13 on Fri 30 Aug to 01:36 on Sat 31 Aug.", "fact": "1957-08-29T19:12:31Z → 1957-08-30T17:35:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 30th, 12:26–13:14 on the 31st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33200 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Qingyang, 1957: Friday 30 August.", "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": "1957-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-30", "confidence": "determinate" } ], "quote": "In Qingyang, Sūrya Ṣaṣṭhī (Bhādrapada) 1957 falls on Friday 30 August. Ṣaṣṭhī runs from 03:13 on Fri 30 Aug to 01:36 on Sat 31 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38988, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1957-08-31T01:35:44+08:00", "utc": "1957-08-30T17:35:44Z", "ms": -389341455810.0932 }, "end": { "local": "1957-09-01T00:43:47+08:00", "utc": "1957-08-31T16:43:47Z", "ms": -389258172671.1438 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-08-31T01:35:44+08:00", "utc": "1957-08-30T17:35:44Z", "ms": -389341455810.0932 }, "end": { "local": "1957-09-01T00:43:47+08:00", "utc": "1957-08-31T16:43:47Z", "ms": -389258172671.1438 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-31", "window": { "start": { "local": "1957-08-31T12:25:32+08:00", "utc": "1957-08-31T04:25:32Z", "ms": -389302467626.1747 }, "end": { "local": "1957-08-31T13:13:32+08:00", "utc": "1957-08-31T05:13:32Z", "ms": -389299587626.1747 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-09-01", "window": { "start": { "local": "1957-09-01T12:25:14+08:00", "utc": "1957-09-01T04:25:14Z", "ms": -389216086265.5838 }, "end": { "local": "1957-09-01T13:13:14+08:00", "utc": "1957-09-01T05:13:14Z", "ms": -389213206265.5838 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 01:36 on Sat 31 Aug to 00:44 on Sun 1 Sep.", "fact": "1957-08-30T17:35:44Z → 1957-08-31T16:43:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 31st, 12:25–13:13 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 38988 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Qingyang, 1957: Saturday 31 August.", "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": "1957-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-08-31", "confidence": "determinate" } ], "quote": "In Qingyang, Muktābharaṇa Vrata 1957 falls on Saturday 31 August. Saptamī runs from 01:36 on Sat 31 Aug to 00:44 on Sun 1 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40976, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1957-09-01T00:43:47+08:00", "utc": "1957-08-31T16:43:47Z", "ms": -389258172671.1438 }, "end": { "local": "1957-09-02T00:36:10+08:00", "utc": "1957-09-01T16:36:10Z", "ms": -389172230179.70575 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-09-01T00:43:47+08:00", "utc": "1957-08-31T16:43:47Z", "ms": -389258172671.1438 }, "end": { "local": "1957-09-02T00:36:10+08:00", "utc": "1957-09-01T16:36:10Z", "ms": -389172230179.70575 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-08-31", "window": { "start": { "local": "1957-08-31T12:25:32+08:00", "utc": "1957-08-31T04:25:32Z", "ms": -389302467626.1747 }, "end": { "local": "1957-08-31T13:13:32+08:00", "utc": "1957-08-31T05:13:32Z", "ms": -389299587626.1747 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-09-01", "window": { "start": { "local": "1957-09-01T12:25:14+08:00", "utc": "1957-09-01T04:25:14Z", "ms": -389216086265.5838 }, "end": { "local": "1957-09-01T13:13:14+08:00", "utc": "1957-09-01T05:13:14Z", "ms": -389213206265.5838 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:44 on Sun 1 Sep to 00:36 on Mon 2 Sep.", "fact": "1957-08-31T16:43:47Z → 1957-09-01T16:36:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 31st, 12:25–13:13 on the 1st.", "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 31st and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 40976 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Qingyang, 1957: Sunday 1 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": "1957-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-01", "confidence": "determinate" } ], "quote": "In Qingyang, Rādhāṣṭamī 1957 falls on Sunday 1 September. Aṣṭamī runs from 00:44 on Sun 1 Sep to 00:36 on Mon 2 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-09-04", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8943, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-09-04T02:18:04+08:00", "utc": "1957-09-03T18:18:04Z", "ms": -388993316061.5644 }, "end": { "local": "1957-09-05T03:55:03+08:00", "utc": "1957-09-04T19:55:03Z", "ms": -388901097061.34375 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-09-04T02:18:04+08:00", "utc": "1957-09-03T18:18:04Z", "ms": -388993316061.5644 }, "end": { "local": "1957-09-05T03:55:03+08:00", "utc": "1957-09-04T19:55:03Z", "ms": -388901097061.34375 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-09-04", "window": { "start": { "local": "1957-09-04T06:23:20+08:00", "utc": "1957-09-03T22:23:20Z", "ms": -388978599820.7224 }, "end": { "local": "1957-09-04T06:23:20+08:00", "utc": "1957-09-03T22:23:20Z", "ms": -388978599820.7224 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-09-05", "window": { "start": { "local": "1957-09-05T06:24:06+08:00", "utc": "1957-09-04T22:24:06Z", "ms": -388892154317.34814 }, "end": { "local": "1957-09-05T06:24:06+08:00", "utc": "1957-09-04T22:24:06Z", "ms": -388892154317.34814 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:18 on Wed 4 Sep to 03:55 on Thu 5 Sep.", "fact": "1957-09-03T18:18:04Z → 1957-09-04T19:55:03Z" }, { "step": "kaala", "text": "Sunrise is at 06:23 on the 4th and 06:24 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 8943 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Qingyang, 1957: Wednesday 4 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-04", "confidence": "determinate" } ], "quote": "In Qingyang, Parivartanī Ekādaśī 1957 falls on Wednesday 4 September. Ekādaśī runs from 02:18 on Wed 4 Sep to 03:55 on Thu 5 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-09-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23418, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1957-09-05T03:55:03+08:00", "utc": "1957-09-04T19:55:03Z", "ms": -388901097061.34375 }, "end": { "local": "1957-09-06T05:53:18+08:00", "utc": "1957-09-05T21:53:18Z", "ms": -388807601646.7522 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-09-05T03:55:03+08:00", "utc": "1957-09-04T19:55:03Z", "ms": -388901097061.34375 }, "end": { "local": "1957-09-06T05:53:18+08:00", "utc": "1957-09-05T21:53:18Z", "ms": -388807601646.7522 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-09-05", "window": { "start": { "local": "1957-09-05T12:23:56+08:00", "utc": "1957-09-05T04:23:56Z", "ms": -388870563810.7771 }, "end": { "local": "1957-09-05T13:11:56+08:00", "utc": "1957-09-05T05:11:56Z", "ms": -388867683810.7771 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-09-06", "window": { "start": { "local": "1957-09-06T12:23:36+08:00", "utc": "1957-09-06T04:23:36Z", "ms": -388784183849.59436 }, "end": { "local": "1957-09-06T13:11:36+08:00", "utc": "1957-09-06T05:11:36Z", "ms": -388781303849.59436 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:55 on Thu 5 Sep to 05:53 on Fri 6 Sep.", "fact": "1957-09-04T19:55:03Z → 1957-09-05T21:53:18Z" }, { "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": "Dvādaśī 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: unstated → only-day · margin 23418 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Qingyang, 1957: Thursday 5 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": "1957-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-05", "confidence": "determinate" } ], "quote": "In Qingyang, Vāmana Jayantī 1957 falls on Thursday 5 September. Dvādaśī runs from 03:55 on Thu 5 Sep to 05:53 on Fri 6 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/pradosha-vrata?on=1957-09-06", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33107, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-09-06T05:53:18+08:00", "utc": "1957-09-05T21:53:18Z", "ms": -388807601646.7522 }, "end": { "local": "1957-09-07T08:06:19+08:00", "utc": "1957-09-07T00:06:19Z", "ms": -388713220834.52924 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-09-06T05:53:18+08:00", "utc": "1957-09-05T21:53:18Z", "ms": -388807601646.7522 }, "end": { "local": "1957-09-07T08:06:19+08:00", "utc": "1957-09-07T00:06:19Z", "ms": -388713220834.52924 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-09-05", "window": { "start": { "local": "1957-09-05T19:11:47+08:00", "utc": "1957-09-05T11:11:47Z", "ms": -388846093304.206 }, "end": { "local": "1957-09-05T20:41:31+08:00", "utc": "1957-09-05T12:41:31Z", "ms": -388840708713.8257 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "1957-09-06", "window": { "start": { "local": "1957-09-06T19:10:21+08:00", "utc": "1957-09-06T11:10:21Z", "ms": -388759778822.8351 }, "end": { "local": "1957-09-06T20:40:23+08:00", "utc": "1957-09-06T12:40:23Z", "ms": -388754376778.069 } }, "covered_min": 90, "window_min": 90, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:53 on Fri 6 Sep to 08:06 on Sat 7 Sep.", "fact": "1957-09-05T21:53:18Z → 1957-09-07T00:06:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:12–20:42 on the 5th, 19:10–20:40 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 90 minutes on the 5th and 90 of 90 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33107 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Friday 6 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-06", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Friday 6 September. Trayodaśī runs from 05:53 on Fri 6 Sep to 08:06 on Sat 7 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-09-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3117, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-09-07T08:06:19+08:00", "utc": "1957-09-07T00:06:19Z", "ms": -388713220834.52924 }, "end": { "local": "1957-09-08T10:28:31+08:00", "utc": "1957-09-08T02:28:31Z", "ms": -388618289423.1962 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1957-09-07T08:06:19+08:00", "utc": "1957-09-07T00:06:19Z", "ms": -388713220834.52924 }, "end": { "local": "1957-09-08T10:28:31+08:00", "utc": "1957-09-08T02:28:31Z", "ms": -388618289423.1962 } }, "kaala": "udaya-3", "days": [ { "local_date": "1957-09-07", "window": { "start": { "local": "1957-09-07T06:25:37+08:00", "utc": "1957-09-06T22:25:37Z", "ms": -388719263487.08905 }, "end": { "local": "1957-09-07T08:58:16+08:00", "utc": "1957-09-07T00:58:16Z", "ms": -388710103735.99457 } }, "covered_min": 52, "window_min": 153, "qualifies": false }, { "local_date": "1957-09-08", "window": { "start": { "local": "1957-09-08T06:26:22+08:00", "utc": "1957-09-07T22:26:22Z", "ms": -388632818138.0602 }, "end": { "local": "1957-09-08T08:58:35+08:00", "utc": "1957-09-08T00:58:35Z", "ms": -388623684710.4773 } }, "covered_min": 152, "window_min": 152, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:06 on Sat 7 Sep to 10:29 on Sun 8 Sep.", "fact": "1957-09-07T00:06:19Z → 1957-09-08T02:28:31Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:26–08:58 on the 7th, 06:26–08:59 on the 8th.", "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 52 of 153 minutes on the 7th and 152 of 152 on the 8th.", "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 3117 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Qingyang, 1957: Sunday 8 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": "1957-09-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-08", "confidence": "determinate" } ], "quote": "In Qingyang, Ananta Caturdaśī 1957 falls on Sunday 8 September. Caturdaśī runs from 08:06 on Sat 7 Sep to 10:29 on Sun 8 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-09-12", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-12", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2053, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-09-12T19:52:39+08:00", "utc": "1957-09-12T11:52:39Z", "ms": -388238841309.57056 }, "end": { "local": "1957-09-13T21:44:24+08:00", "utc": "1957-09-13T13:44:24Z", "ms": -388145736231.7145 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-12T19:52:39+08:00", "utc": "1957-09-12T11:52:39Z", "ms": -388238841309.57056 }, "end": { "local": "1957-09-13T21:44:24+08:00", "utc": "1957-09-13T13:44:24Z", "ms": -388145736231.7145 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-09-12", "window": { "start": { "local": "1957-09-12T20:26:51+08:00", "utc": "1957-09-12T12:26:51Z", "ms": -388236788590.4122 }, "end": { "local": "1957-09-12T20:26:51+08:00", "utc": "1957-09-12T12:26:51Z", "ms": -388236788590.4122 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-09-13", "window": { "start": { "local": "1957-09-13T21:02:13+08:00", "utc": "1957-09-13T13:02:13Z", "ms": -388148267245.5313 }, "end": { "local": "1957-09-13T21:02:13+08:00", "utc": "1957-09-13T13:02:13Z", "ms": -388148267245.5313 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:53 on Thu 12 Sep to 21:44 on Fri 13 Sep.", "fact": "1957-09-12T11:52:39Z → 1957-09-13T13:44:24Z" }, { "step": "kaala", "text": "Moonrise is at 20:27 on the 12th and 21:02 on the 13th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 12th and is on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both moonrises qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2053 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Thursday 12 September.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-09-12", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-12", "confidence": "boundary" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Thursday 12 September. Caturthī runs from 19:53 on Thu 12 Sep to 21:44 on Fri 13 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-09-12", "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/1957/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5314, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1957-09-14T23:10:00+08:00", "utc": "1957-09-14T15:10:00Z", "ms": -388054200123.6754 }, "end": { "local": "1957-09-16T00:01:41+08:00", "utc": "1957-09-15T16:01:41Z", "ms": -387964699407.76044 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-14T23:10:00+08:00", "utc": "1957-09-14T15:10:00Z", "ms": -388054200123.6754 }, "end": { "local": "1957-09-16T00:01:41+08:00", "utc": "1957-09-15T16:01:41Z", "ms": -387964699407.76044 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-09-14", "window": { "start": { "local": "1957-09-14T21:41:26+08:00", "utc": "1957-09-14T13:41:26Z", "ms": -388059513641.8665 }, "end": { "local": "1957-09-14T21:41:26+08:00", "utc": "1957-09-14T13:41:26Z", "ms": -388059513641.8665 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-09-15", "window": { "start": { "local": "1957-09-15T22:25:30+08:00", "utc": "1957-09-15T14:25:30Z", "ms": -387970469579.9941 }, "end": { "local": "1957-09-15T22:25:30+08:00", "utc": "1957-09-15T14:25:30Z", "ms": -387970469579.9941 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 23:10 on Sat 14 Sep to 00:02 on Mon 16 Sep.", "fact": "1957-09-14T15:10:00Z → 1957-09-15T16:01:41Z" }, { "step": "kaala", "text": "Moonrise is at 21:41 on the 14th and 22:26 on the 15th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 14th and is on the 15th.", "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 5314 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Qingyang, 1957: Sunday 15 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": "1957-09-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-15", "confidence": "determinate" } ], "quote": "In Qingyang, Candra Ṣaṣṭhī 1957 falls on Sunday 15 September. Ṣaṣṭhī runs from 23:10 on Sat 14 Sep to 00:02 on Mon 16 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-16", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1862, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1957-09-17T00:12:55+08:00", "utc": "1957-09-16T16:12:55Z", "ms": -387877624547.7669 }, "end": { "local": "1957-09-17T23:39:35+08:00", "utc": "1957-09-17T15:39:35Z", "ms": -387793224552.3167 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-17T00:12:55+08:00", "utc": "1957-09-16T16:12:55Z", "ms": -387877624547.7669 }, "end": { "local": "1957-09-17T23:39:35+08:00", "utc": "1957-09-17T15:39:35Z", "ms": -387793224552.3167 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-09-16", "window": { "start": { "local": "1957-09-16T23:15:09+08:00", "utc": "1957-09-16T15:15:09Z", "ms": -387881091053.11835 }, "end": { "local": "1957-09-16T23:15:09+08:00", "utc": "1957-09-16T15:15:09Z", "ms": -387881091053.11835 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-09-17", "window": { "start": { "local": "1957-09-18T00:10:37+08:00", "utc": "1957-09-17T16:10:37Z", "ms": -387791362500.134 }, "end": { "local": "1957-09-18T00:10:37+08:00", "utc": "1957-09-17T16:10:37Z", "ms": -387791362500.134 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:13 on Tue 17 Sep to 23:40 on Tue 17 Sep.", "fact": "1957-09-16T16:12:55Z → 1957-09-17T15:39:35Z" }, { "step": "kaala", "text": "Moonrise is at 23:15 on the 16th and 00:11 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 16th and is not on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 1862 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Qingyang, 1957: Monday 16 September.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "1957-09-16", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-16", "confidence": "boundary" } ], "quote": "In Qingyang, Mahālakṣmī Vrata Samāpana 1957 falls on Monday 16 September. Aṣṭamī runs from 00:13 on Tue 17 Sep to 23:40 on Tue 17 Sep, and is current at moonrise on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11517, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1957-09-17T00:12:55+08:00", "utc": "1957-09-16T16:12:55Z", "ms": -387877624547.7669 }, "end": { "local": "1957-09-17T23:39:35+08:00", "utc": "1957-09-17T15:39:35Z", "ms": -387793224552.3167 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-17T00:12:55+08:00", "utc": "1957-09-16T16:12:55Z", "ms": -387877624547.7669 }, "end": { "local": "1957-09-17T23:39:35+08:00", "utc": "1957-09-17T15:39:35Z", "ms": -387793224552.3167 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-09-16", "window": { "start": { "local": "1957-09-16T18:55:50+08:00", "utc": "1957-09-16T10:55:50Z", "ms": -387896650430.0452 }, "end": { "local": "1957-09-16T20:28:48+08:00", "utc": "1957-09-16T12:28:48Z", "ms": -387891071660.8731 } }, "covered_min": 0, "window_min": 93, "qualifies": false }, { "local_date": "1957-09-17", "window": { "start": { "local": "1957-09-17T18:54:21+08:00", "utc": "1957-09-17T10:54:21Z", "ms": -387810338560.88635 }, "end": { "local": "1957-09-17T20:27:38+08:00", "utc": "1957-09-17T12:27:38Z", "ms": -387804741951.63403 } }, "covered_min": 93, "window_min": 93, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:13 on Tue 17 Sep to 23:40 on Tue 17 Sep.", "fact": "1957-09-16T16:12:55Z → 1957-09-17T15:39:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:29 on the 16th, 18:54–20:28 on the 17th.", "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 93 minutes on the 16th and 93 of 93 on the 17th.", "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 11517 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Qingyang, 1957: Tuesday 17 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": "1957-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-17", "confidence": "determinate" } ], "quote": "In Qingyang, Jitāṣṭamī (Jitiya) 1957 falls on Tuesday 17 September. Aṣṭamī runs from 00:13 on Tue 17 Sep to 23:40 on Tue 17 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-09-20", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37044, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-09-19T20:18:03+08:00", "utc": "1957-09-19T12:18:03Z", "ms": -387632516822.0524 }, "end": { "local": "1957-09-20T17:37:04+08:00", "utc": "1957-09-20T09:37:04Z", "ms": -387555776264.85443 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-19T20:18:03+08:00", "utc": "1957-09-19T12:18:03Z", "ms": -387632516822.0524 }, "end": { "local": "1957-09-20T17:37:04+08:00", "utc": "1957-09-20T09:37:04Z", "ms": -387555776264.85443 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-09-20", "window": { "start": { "local": "1957-09-20T06:35:28+08:00", "utc": "1957-09-19T22:35:28Z", "ms": -387595472332.9576 }, "end": { "local": "1957-09-20T06:35:28+08:00", "utc": "1957-09-19T22:35:28Z", "ms": -387595472332.9576 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-09-21", "window": { "start": { "local": "1957-09-21T06:36:14+08:00", "utc": "1957-09-20T22:36:14Z", "ms": -387509026324.7005 }, "end": { "local": "1957-09-21T06:36:14+08:00", "utc": "1957-09-20T22:36:14Z", "ms": -387509026324.7005 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:18 on Thu 19 Sep to 17:37 on Fri 20 Sep.", "fact": "1957-09-19T12:18:03Z → 1957-09-20T09:37:04Z" }, { "step": "kaala", "text": "Sunrise is at 06:35 on the 20th and 06:36 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 20th and is not on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 37044 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Qingyang, 1957: Friday 20 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": "1957-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-20", "confidence": "determinate" } ], "quote": "In Qingyang, Indirā Ekādaśī 1957 falls on Friday 20 September. Ekādaśī runs from 20:18 on Thu 19 Sep to 17:37 on Fri 20 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-09-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-09-21", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15807, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-09-21T14:25:02+08:00", "utc": "1957-09-21T06:25:02Z", "ms": -387480897853.3863 }, "end": { "local": "1957-09-22T10:51:04+08:00", "utc": "1957-09-22T02:51:04Z", "ms": -387407335582.1413 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-21T14:25:02+08:00", "utc": "1957-09-21T06:25:02Z", "ms": -387480897853.3863 }, "end": { "local": "1957-09-22T10:51:04+08:00", "utc": "1957-09-22T02:51:04Z", "ms": -387407335582.1413 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-09-21", "window": { "start": { "local": "1957-09-21T18:48:29+08:00", "utc": "1957-09-21T10:48:29Z", "ms": -387465091348.6336 }, "end": { "local": "1957-09-21T20:22:57+08:00", "utc": "1957-09-21T12:22:57Z", "ms": -387459423193.6339 } }, "covered_min": 94, "window_min": 94, "qualifies": true }, { "local_date": "1957-09-22", "window": { "start": { "local": "1957-09-22T18:47:01+08:00", "utc": "1957-09-22T10:47:01Z", "ms": -387378779471.93646 }, "end": { "local": "1957-09-22T20:21:47+08:00", "utc": "1957-09-22T12:21:47Z", "ms": -387373093397.0606 } }, "covered_min": 0, "window_min": 95, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:25 on Sat 21 Sep to 10:51 on Sun 22 Sep.", "fact": "1957-09-21T06:25:02Z → 1957-09-22T02:51:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:48–20:23 on the 21st, 18:47–20:22 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 94 of 94 minutes on the 21st and 0 of 95 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15807 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Saturday 21 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": "1957-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-21", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Saturday 21 September. Trayodaśī runs from 14:25 on Sat 21 Sep to 10:51 on Sun 22 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-09-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-09-22", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21536, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-09-22T10:51:04+08:00", "utc": "1957-09-22T02:51:04Z", "ms": -387407335582.1413 }, "end": { "local": "1957-09-23T07:05:20+08:00", "utc": "1957-09-22T23:05:20Z", "ms": -387334480305.44116 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-22T10:51:04+08:00", "utc": "1957-09-22T02:51:04Z", "ms": -387407335582.1413 }, "end": { "local": "1957-09-23T07:05:20+08:00", "utc": "1957-09-22T23:05:20Z", "ms": -387334480305.44116 } }, "kaala": "nishita", "days": [ { "local_date": "1957-09-21", "window": { "start": { "local": "1957-09-22T00:18:44+08:00", "utc": "1957-09-21T16:18:44Z", "ms": -387445275767.38477 }, "end": { "local": "1957-09-22T01:06:44+08:00", "utc": "1957-09-21T17:06:44Z", "ms": -387442395767.38477 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-09-22", "window": { "start": { "local": "1957-09-23T00:18:23+08:00", "utc": "1957-09-22T16:18:23Z", "ms": -387358896691.152 }, "end": { "local": "1957-09-23T01:06:23+08:00", "utc": "1957-09-22T17:06:23Z", "ms": -387356016691.152 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:51 on Sun 22 Sep to 07:05 on Mon 23 Sep.", "fact": "1957-09-22T02:51:04Z → 1957-09-22T23:05:20Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:19–01:07 on the 21st, 00:18–01:06 on the 22nd.", "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 21st and 48 of 48 on the 22nd.", "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 21536 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Sunday 22 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": "1957-09-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-22", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Sunday 22 September. Caturdaśī runs from 10:51 on Sun 22 Sep to 07:05 on Mon 23 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-09-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24546, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1957-09-23T07:05:20+08:00", "utc": "1957-09-22T23:05:20Z", "ms": -387334480305.44116 }, "end": { "local": "1957-09-24T03:18:28+08:00", "utc": "1957-09-23T19:18:28Z", "ms": -387261691817.2841 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-23T07:05:20+08:00", "utc": "1957-09-22T23:05:20Z", "ms": -387334480305.44116 }, "end": { "local": "1957-09-24T03:18:28+08:00", "utc": "1957-09-23T19:18:28Z", "ms": -387261691817.2841 } }, "kaala": "aparahna", "days": [ { "local_date": "1957-09-23", "window": { "start": { "local": "1957-09-23T13:54:26+08:00", "utc": "1957-09-23T05:54:26Z", "ms": -387309934072.26117 }, "end": { "local": "1957-09-23T16:19:59+08:00", "utc": "1957-09-23T08:19:59Z", "ms": -387301200792.89233 } }, "covered_min": 146, "window_min": 146, "qualifies": true }, { "local_date": "1957-09-24", "window": { "start": { "local": "1957-09-24T13:53:52+08:00", "utc": "1957-09-24T05:53:52Z", "ms": -387223568265.76855 }, "end": { "local": "1957-09-24T16:18:58+08:00", "utc": "1957-09-24T08:18:58Z", "ms": -387214861857.2814 } }, "covered_min": 0, "window_min": 145, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 07:05 on Mon 23 Sep to 03:18 on Tue 24 Sep.", "fact": "1957-09-22T23:05:20Z → 1957-09-23T19:18:28Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:54–16:20 on the 23rd, 13:54–16:19 on the 24th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 146 of 146 minutes on the 23rd and 0 of 145 on the 24th.", "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 24546 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Qingyang, 1957: Monday 23 September.", "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": "1957-09-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-23", "confidence": "determinate" } ], "quote": "In Qingyang, Mahālaya Amāvāsyā 1957 falls on Monday 23 September. Amāvasyā runs from 07:05 on Mon 23 Sep to 03:18 on Tue 24 Sep and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32330, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1957-09-24T03:18:28+08:00", "utc": "1957-09-23T19:18:28Z", "ms": -387261691817.2841 }, "end": { "local": "1957-09-24T23:41:14+08:00", "utc": "1957-09-24T15:41:14Z", "ms": -387188326349.8745 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-24T03:18:28+08:00", "utc": "1957-09-23T19:18:28Z", "ms": -387261691817.2841 }, "end": { "local": "1957-09-24T23:41:14+08:00", "utc": "1957-09-24T15:41:14Z", "ms": -387188326349.8745 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-09-24", "window": { "start": { "local": "1957-09-24T12:17:19+08:00", "utc": "1957-09-24T04:17:19Z", "ms": -387229361470.0121 }, "end": { "local": "1957-09-24T13:05:19+08:00", "utc": "1957-09-24T05:05:19Z", "ms": -387226481470.0121 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-09-25", "window": { "start": { "local": "1957-09-25T12:16:58+08:00", "utc": "1957-09-25T04:16:58Z", "ms": -387142982088.0858 }, "end": { "local": "1957-09-25T13:04:58+08:00", "utc": "1957-09-25T05:04:58Z", "ms": -387140102088.0858 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 03:18 on Tue 24 Sep to 23:41 on Tue 24 Sep.", "fact": "1957-09-23T19:18:28Z → 1957-09-24T15:41:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:17–13:05 on the 24th, 12:17–13:05 on the 25th.", "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 24th and 0 of 48 on the 25th.", "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 32330 s" }, { "step": "ruling", "text": "Navarātrārambha, Qingyang, 1957: Tuesday 24 September.", "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": "1957-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-24", "confidence": "determinate" } ], "quote": "In Qingyang, Navarātrārambha (Navratri) 1957 falls on Tuesday 24 September. Pratipadā runs from 03:18 on Tue 24 Sep to 23:41 on Tue 24 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vinayaka-chaturthi?on=1957-09-27", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8503, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-09-26T17:36:10+08:00", "utc": "1957-09-26T09:36:10Z", "ms": -387037429509.30817 }, "end": { "local": "1957-09-27T15:26:00+08:00", "utc": "1957-09-27T07:26:00Z", "ms": -386958839654.0253 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-26T17:36:10+08:00", "utc": "1957-09-26T09:36:10Z", "ms": -387037429509.30817 }, "end": { "local": "1957-09-27T15:26:00+08:00", "utc": "1957-09-27T07:26:00Z", "ms": -386958839654.0253 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-09-26", "window": { "start": { "local": "1957-09-26T12:16:37+08:00", "utc": "1957-09-26T04:16:37Z", "ms": -387056602550.72095 }, "end": { "local": "1957-09-26T13:04:37+08:00", "utc": "1957-09-26T05:04:37Z", "ms": -387053722550.72095 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-09-27", "window": { "start": { "local": "1957-09-27T12:16:17+08:00", "utc": "1957-09-27T04:16:17Z", "ms": -386970222841.7462 }, "end": { "local": "1957-09-27T13:04:17+08:00", "utc": "1957-09-27T05:04:17Z", "ms": -386967342841.7462 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:36 on Thu 26 Sep to 15:26 on Fri 27 Sep.", "fact": "1957-09-26T09:36:10Z → 1957-09-27T07:26:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:17–13:05 on the 26th, 12:16–13:04 on the 27th.", "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 26th and 48 of 48 on the 27th.", "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 8503 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Friday 27 September.", "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": "1957-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-27", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Friday 27 September. Caturthī runs from 17:36 on Thu 26 Sep to 15:26 on Fri 27 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-09-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-09-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21011, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1957-09-29T13:20:15+08:00", "utc": "1957-09-29T05:20:15Z", "ms": -386793584787.3409 }, "end": { "local": "1957-09-30T13:28:19+08:00", "utc": "1957-09-30T05:28:19Z", "ms": -386706701130.20374 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-29T13:20:15+08:00", "utc": "1957-09-29T05:20:15Z", "ms": -386793584787.3409 }, "end": { "local": "1957-09-30T13:28:19+08:00", "utc": "1957-09-30T05:28:19Z", "ms": -386706701130.20374 } }, "kaala": "udaya-1", "days": [ { "local_date": "1957-09-29", "window": { "start": { "local": "1957-09-29T06:42:27+08:00", "utc": "1957-09-28T22:42:27Z", "ms": -386817453027.2142 }, "end": { "local": "1957-09-29T07:30:04+08:00", "utc": "1957-09-28T23:30:04Z", "ms": -386814595668.83136 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-09-30", "window": { "start": { "local": "1957-09-30T06:43:14+08:00", "utc": "1957-09-29T22:43:14Z", "ms": -386731005607.6168 }, "end": { "local": "1957-09-30T07:30:43+08:00", "utc": "1957-09-29T23:30:43Z", "ms": -386728157194.41003 } }, "covered_min": 47, "window_min": 47, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 13:20 on Sun 29 Sep to 13:28 on Mon 30 Sep.", "fact": "1957-09-29T05:20:15Z → 1957-09-30T05:28:19Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:42–07:30 on the 29th, 06:43–07:31 on the 30th.", "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 48 minutes on the 29th and 47 of 47 on the 30th.", "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 21011 s" }, { "step": "ruling", "text": "Durgā Saptamī, Qingyang, 1957: Monday 30 September.", "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": "1957-09-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-09-30", "confidence": "determinate" } ], "quote": "In Qingyang, Durgā Saptamī 1957 falls on Monday 30 September. Saptamī runs from 13:20 on Sun 29 Sep to 13:28 on Mon 30 Sep and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1501, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1957-09-30T13:28:19+08:00", "utc": "1957-09-30T05:28:19Z", "ms": -386706701130.20374 }, "end": { "local": "1957-10-01T14:20:32+08:00", "utc": "1957-10-01T06:20:32Z", "ms": -386617168455.90735 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-09-30T13:28:19+08:00", "utc": "1957-09-30T05:28:19Z", "ms": -386706701130.20374 }, "end": { "local": "1957-10-01T14:20:32+08:00", "utc": "1957-10-01T06:20:32Z", "ms": -386617168455.90735 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-09-30", "window": { "start": { "local": "1957-09-30T12:15:17+08:00", "utc": "1957-09-30T04:15:17Z", "ms": -386711082508.56573 }, "end": { "local": "1957-09-30T13:03:17+08:00", "utc": "1957-09-30T05:03:17Z", "ms": -386708202508.56573 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-10-01", "window": { "start": { "local": "1957-10-01T12:14:58+08:00", "utc": "1957-10-01T04:14:58Z", "ms": -386624701931.68567 }, "end": { "local": "1957-10-01T13:02:58+08:00", "utc": "1957-10-01T05:02:58Z", "ms": -386621821931.68567 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 13:28 on Mon 30 Sep to 14:21 on Tue 1 Oct.", "fact": "1957-09-30T05:28:19Z → 1957-10-01T06:20:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 30th, 12:15–13:03 on the 1st.", "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 30th and 48 of 48 on the 1st.", "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 1501 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Qingyang, 1957: Tuesday 1 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": "1957-10-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-01", "confidence": "determinate" } ], "quote": "In Qingyang, Mahāṣṭamī (Durga Ashtami) 1957 falls on Tuesday 1 October. Aṣṭamī runs from 13:28 on Mon 30 Sep to 14:21 on Tue 1 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4653, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1957-10-01T14:20:32+08:00", "utc": "1957-10-01T06:20:32Z", "ms": -386617168455.90735 }, "end": { "local": "1957-10-02T15:50:32+08:00", "utc": "1957-10-02T07:50:32Z", "ms": -386525368034.843 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-10-01T14:20:32+08:00", "utc": "1957-10-01T06:20:32Z", "ms": -386617168455.90735 }, "end": { "local": "1957-10-02T15:50:32+08:00", "utc": "1957-10-02T07:50:32Z", "ms": -386525368034.843 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-10-01", "window": { "start": { "local": "1957-10-01T12:14:58+08:00", "utc": "1957-10-01T04:14:58Z", "ms": -386624701931.68567 }, "end": { "local": "1957-10-01T13:02:58+08:00", "utc": "1957-10-01T05:02:58Z", "ms": -386621821931.68567 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-10-02", "window": { "start": { "local": "1957-10-02T12:14:39+08:00", "utc": "1957-10-02T04:14:39Z", "ms": -386538321088.03 }, "end": { "local": "1957-10-02T13:02:39+08:00", "utc": "1957-10-02T05:02:39Z", "ms": -386535441088.03 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 14:21 on Tue 1 Oct to 15:51 on Wed 2 Oct.", "fact": "1957-10-01T06:20:32Z → 1957-10-02T07:50:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 1st, 12:15–13:03 on the 2nd.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4653 s" }, { "step": "ruling", "text": "Mahānavamī, Qingyang, 1957: Wednesday 2 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": "1957-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-02", "confidence": "determinate" } ], "quote": "In Qingyang, Mahānavamī 1957 falls on Wednesday 2 October. Navamī runs from 14:21 on Tue 1 Oct to 15:51 on Wed 2 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2482, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1957-10-02T15:50:32+08:00", "utc": "1957-10-02T07:50:32Z", "ms": -386525368034.843 }, "end": { "local": "1957-10-03T17:49:40+08:00", "utc": "1957-10-03T09:49:40Z", "ms": -386431819652.2865 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "1957-10-03T04:33:26+08:00", "utc": "1957-10-02T20:33:26Z", "ms": -386479594112.6107 }, "end": { "local": "1957-10-03T17:49:40+08:00", "utc": "1957-10-03T09:49:40Z", "ms": -386431819652.2865 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "1957-10-03T04:33:26+08:00", "utc": "1957-10-02T20:33:26Z", "ms": -386479594112.6107 }, "end": { "local": "1957-10-04T07:14:42+08:00", "utc": "1957-10-03T23:14:42Z", "ms": -386383517954.308 } } }, "kaala": "daytime", "days": [ { "local_date": "1957-10-02", "window": { "start": { "local": "1957-10-02T06:44:50+08:00", "utc": "1957-10-01T22:44:50Z", "ms": -386558110163.0932 }, "end": { "local": "1957-10-02T18:32:28+08:00", "utc": "1957-10-02T10:32:28Z", "ms": -386515652012.9669 } }, "covered_min": 0, "window_min": 708, "qualifies": false }, { "local_date": "1957-10-03", "window": { "start": { "local": "1957-10-03T06:45:38+08:00", "utc": "1957-10-02T22:45:38Z", "ms": -386471662114.756 }, "end": { "local": "1957-10-03T18:31:02+08:00", "utc": "1957-10-03T10:31:02Z", "ms": -386429337798.04034 } }, "covered_min": 664, "window_min": 705, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 15:51 on Wed 2 Oct to 17:50 on Thu 3 Oct, and Śravaṇa from 04:33 on Thu 3 Oct to 07:15 on Fri 4 Oct. They are together from 04:33 on Thu 3 Oct to 17:50 on Thu 3 Oct.", "fact": "1957-10-02T20:33:26Z → 1957-10-03T09:49:40Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 06:45–18:32 on the 2nd, 06:46–18:31 on the 3rd.", "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 708 minutes on the 2nd and 664 of 705 on the 3rd.", "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 2482 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Qingyang, 1957: Thursday 3 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": "1957-10-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-03", "confidence": "determinate" } ], "quote": "In Qingyang, Vijayā Daśamī (Dussehra) 1957 falls on Thursday 3 October. Daśamī runs from 15:51 on Wed 2 Oct to 17:50 on Thu 3 Oct and is with Śravaṇa in the day time that day, for 664 minutes.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-10-04", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38344, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-10-03T17:49:40+08:00", "utc": "1957-10-03T09:49:40Z", "ms": -386431819652.2865 }, "end": { "local": "1957-10-04T20:08:11+08:00", "utc": "1957-10-04T12:08:11Z", "ms": -386337108972.3129 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-10-03T17:49:40+08:00", "utc": "1957-10-03T09:49:40Z", "ms": -386431819652.2865 }, "end": { "local": "1957-10-04T20:08:11+08:00", "utc": "1957-10-04T12:08:11Z", "ms": -386337108972.3129 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-10-04", "window": { "start": { "local": "1957-10-04T06:46:26+08:00", "utc": "1957-10-03T22:46:26Z", "ms": -386385213832.636 }, "end": { "local": "1957-10-04T06:46:26+08:00", "utc": "1957-10-03T22:46:26Z", "ms": -386385213832.636 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-10-05", "window": { "start": { "local": "1957-10-05T06:47:15+08:00", "utc": "1957-10-04T22:47:15Z", "ms": -386298765304.05457 }, "end": { "local": "1957-10-05T06:47:15+08:00", "utc": "1957-10-04T22:47:15Z", "ms": -386298765304.05457 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:50 on Thu 3 Oct to 20:08 on Fri 4 Oct.", "fact": "1957-10-03T09:49:40Z → 1957-10-04T12:08:11Z" }, { "step": "kaala", "text": "Sunrise is at 06:46 on the 4th and 06:47 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 38344 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Qingyang, 1957: Friday 4 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-04", "confidence": "determinate" } ], "quote": "In Qingyang, Pāśāṅkuśā Ekādaśī 1957 falls on Friday 4 October. Ekādaśī runs from 17:50 on Thu 3 Oct to 20:08 on Fri 4 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-10-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-10-06", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8977, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-10-05T22:36:27+08:00", "utc": "1957-10-05T14:36:27Z", "ms": -386241812520.69214 }, "end": { "local": "1957-10-07T01:05:59+08:00", "utc": "1957-10-06T17:05:59Z", "ms": -386146441296.79834 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1957-10-05T22:36:27+08:00", "utc": "1957-10-05T14:36:27Z", "ms": -386241812520.69214 }, "end": { "local": "1957-10-07T01:05:59+08:00", "utc": "1957-10-06T17:05:59Z", "ms": -386146441296.79834 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-10-05", "window": { "start": { "local": "1957-10-05T18:28:12+08:00", "utc": "1957-10-05T10:28:12Z", "ms": -386256708180.8341 }, "end": { "local": "1957-10-05T20:06:51+08:00", "utc": "1957-10-05T12:06:51Z", "ms": -386250789292.20935 } }, "covered_min": 0, "window_min": 99, "qualifies": false }, { "local_date": "1957-10-06", "window": { "start": { "local": "1957-10-06T18:26:47+08:00", "utc": "1957-10-06T10:26:47Z", "ms": -386170392715.83075 }, "end": { "local": "1957-10-06T20:05:44+08:00", "utc": "1957-10-06T12:05:44Z", "ms": -386164456014.5152 } }, "covered_min": 99, "window_min": 99, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:36 on Sat 5 Oct to 01:06 on Mon 7 Oct.", "fact": "1957-10-05T14:36:27Z → 1957-10-06T17:05:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:28–20:07 on the 5th, 18:27–20:06 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 99 minutes on the 5th and 99 of 99 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8977 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Sunday 6 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-10-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-06", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Sunday 6 October. Trayodaśī runs from 22:36 on Sat 5 Oct to 01:06 on Mon 7 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-10-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35700, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-10-12T10:29:34+08:00", "utc": "1957-10-12T02:29:34Z", "ms": -385680626081.4714 }, "end": { "local": "1957-10-13T11:16:07+08:00", "utc": "1957-10-13T03:16:07Z", "ms": -385591433206.2715 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-12T10:29:34+08:00", "utc": "1957-10-12T02:29:34Z", "ms": -385680626081.4714 }, "end": { "local": "1957-10-13T11:16:07+08:00", "utc": "1957-10-13T03:16:07Z", "ms": -385591433206.2715 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-10-12", "window": { "start": { "local": "1957-10-12T20:24:34+08:00", "utc": "1957-10-12T12:24:34Z", "ms": -385644926463.4599 }, "end": { "local": "1957-10-12T20:24:34+08:00", "utc": "1957-10-12T12:24:34Z", "ms": -385644926463.4599 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-10-13", "window": { "start": { "local": "1957-10-13T21:12:14+08:00", "utc": "1957-10-13T13:12:14Z", "ms": -385555666326.59705 }, "end": { "local": "1957-10-13T21:12:14+08:00", "utc": "1957-10-13T13:12:14Z", "ms": -385555666326.59705 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:30 on Sat 12 Oct to 11:16 on Sun 13 Oct.", "fact": "1957-10-12T02:29:34Z → 1957-10-13T03:16:07Z" }, { "step": "kaala", "text": "Moonrise is at 20:25 on the 12th and 21:12 on the 13th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 35700 s" }, { "step": "ruling", "text": "Karaka Caturthī, Qingyang, 1957: Saturday 12 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "karaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Karaka caturthi (current at moon-rise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-12", "confidence": "determinate" } ], "quote": "In Qingyang, Karaka Caturthī (Karwa Chauth) 1957 falls on Saturday 12 October. Caturthī runs from 10:30 on Sat 12 Oct to 11:16 on Sun 13 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-10-12", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35700, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-10-12T10:29:34+08:00", "utc": "1957-10-12T02:29:34Z", "ms": -385680626081.4714 }, "end": { "local": "1957-10-13T11:16:07+08:00", "utc": "1957-10-13T03:16:07Z", "ms": -385591433206.2715 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-12T10:29:34+08:00", "utc": "1957-10-12T02:29:34Z", "ms": -385680626081.4714 }, "end": { "local": "1957-10-13T11:16:07+08:00", "utc": "1957-10-13T03:16:07Z", "ms": -385591433206.2715 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-10-12", "window": { "start": { "local": "1957-10-12T20:24:34+08:00", "utc": "1957-10-12T12:24:34Z", "ms": -385644926463.4599 }, "end": { "local": "1957-10-12T20:24:34+08:00", "utc": "1957-10-12T12:24:34Z", "ms": -385644926463.4599 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-10-13", "window": { "start": { "local": "1957-10-13T21:12:14+08:00", "utc": "1957-10-13T13:12:14Z", "ms": -385555666326.59705 }, "end": { "local": "1957-10-13T21:12:14+08:00", "utc": "1957-10-13T13:12:14Z", "ms": -385555666326.59705 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:30 on Sat 12 Oct to 11:16 on Sun 13 Oct.", "fact": "1957-10-12T02:29:34Z → 1957-10-13T03:16:07Z" }, { "step": "kaala", "text": "Moonrise is at 20:25 on the 12th and 21:12 on the 13th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 12th and is not on the 13th.", "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 35700 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Saturday 12 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-12", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Saturday 12 October. Caturthī runs from 10:30 on Sat 12 Oct to 11:16 on Sun 13 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-10-12", "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/1957/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31898, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1957-10-16T10:23:06+08:00", "utc": "1957-10-16T02:23:06Z", "ms": -385335413579.5895 }, "end": { "local": "1957-10-17T08:56:21+08:00", "utc": "1957-10-17T00:56:21Z", "ms": -385254218642.1604 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-16T10:23:06+08:00", "utc": "1957-10-16T02:23:06Z", "ms": -385335413579.5895 }, "end": { "local": "1957-10-17T08:56:21+08:00", "utc": "1957-10-17T00:56:21Z", "ms": -385254218642.1604 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-10-15", "window": { "start": { "local": "1957-10-15T23:02:53+08:00", "utc": "1957-10-15T15:02:53Z", "ms": -385376226588.9159 }, "end": { "local": "1957-10-15T23:02:53+08:00", "utc": "1957-10-15T15:02:53Z", "ms": -385376226588.9159 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-10-16", "window": { "start": { "local": "1957-10-17T00:04:43+08:00", "utc": "1957-10-16T16:04:43Z", "ms": -385286116616.1958 }, "end": { "local": "1957-10-17T00:04:43+08:00", "utc": "1957-10-16T16:04:43Z", "ms": -385286116616.1958 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:23 on Wed 16 Oct to 08:56 on Thu 17 Oct.", "fact": "1957-10-16T02:23:06Z → 1957-10-17T00:56:21Z" }, { "step": "kaala", "text": "Moonrise is at 23:03 on the 15th and 00:05 on the 16th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 15th and is on the 16th.", "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 31898 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Qingyang, 1957: Wednesday 16 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": "1957-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-16", "confidence": "determinate" } ], "quote": "In Qingyang, Ahoyī Aṣṭamī 1957 falls on Wednesday 16 October. Aṣṭamī runs from 10:23 on Wed 16 Oct to 08:56 on Thu 17 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-10-19", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9073, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-10-19T04:27:54+08:00", "utc": "1957-10-18T20:27:54Z", "ms": -385097526109.1271 }, "end": { "local": "1957-10-20T01:35:30+08:00", "utc": "1957-10-19T17:35:30Z", "ms": -385021469728.2783 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-19T04:27:54+08:00", "utc": "1957-10-18T20:27:54Z", "ms": -385097526109.1271 }, "end": { "local": "1957-10-20T01:35:30+08:00", "utc": "1957-10-19T17:35:30Z", "ms": -385021469728.2783 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-10-19", "window": { "start": { "local": "1957-10-19T06:59:07+08:00", "utc": "1957-10-18T22:59:07Z", "ms": -385088453219.97687 }, "end": { "local": "1957-10-19T06:59:07+08:00", "utc": "1957-10-18T22:59:07Z", "ms": -385088453219.97687 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-10-20", "window": { "start": { "local": "1957-10-20T07:00:00+08:00", "utc": "1957-10-19T23:00:00Z", "ms": -385001999651.676 }, "end": { "local": "1957-10-20T07:00:00+08:00", "utc": "1957-10-19T23:00:00Z", "ms": -385001999651.676 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:28 on Sat 19 Oct to 01:36 on Sun 20 Oct.", "fact": "1957-10-18T20:27:54Z → 1957-10-19T17:35:30Z" }, { "step": "kaala", "text": "Sunrise is at 06:59 on the 19th and 07:00 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 9073 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Qingyang, 1957: Saturday 19 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": "1957-10-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-19", "confidence": "determinate" } ], "quote": "In Qingyang, Ramā Ekādaśī 1957 falls on Saturday 19 October. Ekādaśī runs from 04:28 on Sat 19 Oct to 01:36 on Sun 20 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-10-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9317, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1957-10-20T01:35:30+08:00", "utc": "1957-10-19T17:35:30Z", "ms": -385021469728.2783 }, "end": { "local": "1957-10-20T22:26:28+08:00", "utc": "1957-10-20T14:26:28Z", "ms": -384946411740.25055 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-20T01:35:30+08:00", "utc": "1957-10-19T17:35:30Z", "ms": -385021469728.2783 }, "end": { "local": "1957-10-20T22:26:28+08:00", "utc": "1957-10-20T14:26:28Z", "ms": -384946411740.25055 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-10-19", "window": { "start": { "local": "1957-10-19T18:09:24+08:00", "utc": "1957-10-19T10:09:24Z", "ms": -385048236044.2232 }, "end": { "local": "1957-10-19T19:52:09+08:00", "utc": "1957-10-19T11:52:09Z", "ms": -385042071191.8836 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1957-10-20", "window": { "start": { "local": "1957-10-20T18:08:09+08:00", "utc": "1957-10-20T10:08:09Z", "ms": -384961910868.34174 }, "end": { "local": "1957-10-20T19:51:11+08:00", "utc": "1957-10-20T11:51:11Z", "ms": -384955728846.3562 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 01:36 on Sun 20 Oct to 22:26 on Sun 20 Oct.", "fact": "1957-10-19T17:35:30Z → 1957-10-20T14:26:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:09–19:52 on the 19th, 18:08–19:51 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 19th and 103 of 103 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 9317 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Qingyang, 1957: Sunday 20 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": "1957-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-20", "confidence": "determinate" } ], "quote": "In Qingyang, Govatsa Dvādaśī (Vasu Baras) 1957 falls on Sunday 20 October. Dvādaśī runs from 01:36 on Sun 20 Oct to 22:26 on Sun 20 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2484, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-10-20T22:26:28+08:00", "utc": "1957-10-20T14:26:28Z", "ms": -384946411740.25055 }, "end": { "local": "1957-10-21T19:08:51+08:00", "utc": "1957-10-21T11:08:51Z", "ms": -384871869189.846 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-20T22:26:28+08:00", "utc": "1957-10-20T14:26:28Z", "ms": -384946411740.25055 }, "end": { "local": "1957-10-21T19:08:51+08:00", "utc": "1957-10-21T11:08:51Z", "ms": -384871869189.846 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-10-20", "window": { "start": { "local": "1957-10-20T18:08:09+08:00", "utc": "1957-10-20T10:08:09Z", "ms": -384961910868.34174 }, "end": { "local": "1957-10-20T19:51:11+08:00", "utc": "1957-10-20T11:51:11Z", "ms": -384955728846.3562 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1957-10-21", "window": { "start": { "local": "1957-10-21T18:06:55+08:00", "utc": "1957-10-21T10:06:55Z", "ms": -384875584758.5338 }, "end": { "local": "1957-10-21T19:50:14+08:00", "utc": "1957-10-21T11:50:14Z", "ms": -384869385641.34064 } }, "covered_min": 62, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:26 on Sun 20 Oct to 19:09 on Mon 21 Oct.", "fact": "1957-10-20T14:26:28Z → 1957-10-21T11:08:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:08–19:51 on the 20th, 18:07–19:50 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 103 minutes on the 20th and 62 of 103 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2484 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Qingyang, 1957: Monday 21 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": "1957-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-21", "confidence": "determinate" } ], "quote": "In Qingyang, Yama Dīpadāna 1957 falls on Monday 21 October. Trayodaśī runs from 22:26 on Sun 20 Oct to 19:09 on Mon 21 Oct and covers 62 of 103 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/pradosha-vrata?on=1957-10-21", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2484, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-10-20T22:26:28+08:00", "utc": "1957-10-20T14:26:28Z", "ms": -384946411740.25055 }, "end": { "local": "1957-10-21T19:08:51+08:00", "utc": "1957-10-21T11:08:51Z", "ms": -384871869189.846 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-20T22:26:28+08:00", "utc": "1957-10-20T14:26:28Z", "ms": -384946411740.25055 }, "end": { "local": "1957-10-21T19:08:51+08:00", "utc": "1957-10-21T11:08:51Z", "ms": -384871869189.846 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-10-20", "window": { "start": { "local": "1957-10-20T18:08:09+08:00", "utc": "1957-10-20T10:08:09Z", "ms": -384961910868.34174 }, "end": { "local": "1957-10-20T19:51:11+08:00", "utc": "1957-10-20T11:51:11Z", "ms": -384955728846.3562 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1957-10-21", "window": { "start": { "local": "1957-10-21T18:06:55+08:00", "utc": "1957-10-21T10:06:55Z", "ms": -384875584758.5338 }, "end": { "local": "1957-10-21T19:50:14+08:00", "utc": "1957-10-21T11:50:14Z", "ms": -384869385641.34064 } }, "covered_min": 62, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:26 on Sun 20 Oct to 19:09 on Mon 21 Oct.", "fact": "1957-10-20T14:26:28Z → 1957-10-21T11:08:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:08–19:51 on the 20th, 18:07–19:50 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 103 minutes on the 20th and 62 of 103 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 2484 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Monday 21 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": "1957-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-21", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Monday 21 October. Trayodaśī runs from 22:26 on Sun 20 Oct to 19:09 on Mon 21 Oct and covers 62 of 103 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-10-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-10-21", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18091, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-10-21T19:08:51+08:00", "utc": "1957-10-21T11:08:51Z", "ms": -384871869189.846 }, "end": { "local": "1957-10-22T15:51:25+08:00", "utc": "1957-10-22T07:51:25Z", "ms": -384797315175.3711 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-21T19:08:51+08:00", "utc": "1957-10-21T11:08:51Z", "ms": -384871869189.846 }, "end": { "local": "1957-10-22T15:51:25+08:00", "utc": "1957-10-22T07:51:25Z", "ms": -384797315175.3711 } }, "kaala": "nishita", "days": [ { "local_date": "1957-10-21", "window": { "start": { "local": "1957-10-22T00:10:22+08:00", "utc": "1957-10-21T16:10:22Z", "ms": -384853778069.0593 }, "end": { "local": "1957-10-22T00:58:22+08:00", "utc": "1957-10-21T16:58:22Z", "ms": -384850898069.0593 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-10-22", "window": { "start": { "local": "1957-10-23T00:10:13+08:00", "utc": "1957-10-22T16:10:13Z", "ms": -384767387186.4657 }, "end": { "local": "1957-10-23T00:58:13+08:00", "utc": "1957-10-22T16:58:13Z", "ms": -384764507186.4657 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:09 on Mon 21 Oct to 15:51 on Tue 22 Oct.", "fact": "1957-10-21T11:08:51Z → 1957-10-22T07:51:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:10–00:58 on the 21st, 00:10–00:58 on the 22nd.", "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 21st and 0 of 48 on the 22nd.", "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 18091 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Monday 21 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": "1957-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-21", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Monday 21 October. Caturdaśī runs from 19:09 on Mon 21 Oct to 15:51 on Tue 22 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-10-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31776, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-10-21T19:08:51+08:00", "utc": "1957-10-21T11:08:51Z", "ms": -384871869189.846 }, "end": { "local": "1957-10-22T15:51:25+08:00", "utc": "1957-10-22T07:51:25Z", "ms": -384797315175.3711 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-21T19:08:51+08:00", "utc": "1957-10-21T11:08:51Z", "ms": -384871869189.846 }, "end": { "local": "1957-10-22T15:51:25+08:00", "utc": "1957-10-22T07:51:25Z", "ms": -384797315175.3711 } }, "kaala": "arunodaya", "days": [ { "local_date": "1957-10-21", "window": { "start": { "local": "1957-10-21T05:17:52+08:00", "utc": "1957-10-20T21:17:52Z", "ms": -384921727725.436 }, "end": { "local": "1957-10-21T07:00:54+08:00", "utc": "1957-10-20T23:00:54Z", "ms": -384915545703.45044 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1957-10-22", "window": { "start": { "local": "1957-10-22T05:18:30+08:00", "utc": "1957-10-21T21:18:30Z", "ms": -384835290496.7781 }, "end": { "local": "1957-10-22T07:01:49+08:00", "utc": "1957-10-21T23:01:49Z", "ms": -384829091379.5849 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:09 on Mon 21 Oct to 15:51 on Tue 22 Oct.", "fact": "1957-10-21T11:08:51Z → 1957-10-22T07:51:25Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:18–07:01 on the 21st, 05:18–07:02 on the 22nd.", "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 103 minutes on the 21st and 103 of 103 on the 22nd.", "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 31776 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Qingyang, 1957: Tuesday 22 October.", "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": "1957-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-22", "confidence": "determinate" } ], "quote": "In Qingyang, Naraka Caturdaśī (Choti Diwali) 1957 falls on Tuesday 22 October. Caturdaśī runs from 19:09 on Mon 21 Oct to 15:51 on Tue 22 Oct and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8057, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1957-10-22T15:51:25+08:00", "utc": "1957-10-22T07:51:25Z", "ms": -384797315175.3711 }, "end": { "local": "1957-10-23T12:43:20+08:00", "utc": "1957-10-23T04:43:20Z", "ms": -384722199637.9634 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-22T15:51:25+08:00", "utc": "1957-10-22T07:51:25Z", "ms": -384797315175.3711 }, "end": { "local": "1957-10-23T12:43:20+08:00", "utc": "1957-10-23T04:43:20Z", "ms": -384722199637.9634 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-10-22", "window": { "start": { "local": "1957-10-22T18:05:42+08:00", "utc": "1957-10-22T10:05:42Z", "ms": -384789257686.71204 }, "end": { "local": "1957-10-22T19:49:18+08:00", "utc": "1957-10-22T11:49:18Z", "ms": -384783041553.31305 } }, "covered_min": 104, "window_min": 104, "qualifies": true }, { "local_date": "1957-10-23", "window": { "start": { "local": "1957-10-23T18:04:30+08:00", "utc": "1957-10-23T10:04:30Z", "ms": -384702929625.51495 }, "end": { "local": "1957-10-23T19:48:23+08:00", "utc": "1957-10-23T11:48:23Z", "ms": -384696696559.5844 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 15:51 on Tue 22 Oct to 12:43 on Wed 23 Oct.", "fact": "1957-10-22T07:51:25Z → 1957-10-23T04:43:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:06–19:49 on the 22nd, 18:05–19:48 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 104 of 104 minutes on the 22nd and 0 of 104 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8057 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Qingyang, 1957: Tuesday 22 October.", "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": "1957-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-22", "confidence": "determinate" } ], "quote": "In Qingyang, Lakṣmī Pūjā (Diwali) 1957 falls on Tuesday 22 October. Amāvasyā runs from 15:51 on Tue 22 Oct to 12:43 on Wed 23 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29928, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1957-10-22T15:51:25+08:00", "utc": "1957-10-22T07:51:25Z", "ms": -384797315175.3711 }, "end": { "local": "1957-10-23T12:43:20+08:00", "utc": "1957-10-23T04:43:20Z", "ms": -384722199637.9634 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-22T15:51:25+08:00", "utc": "1957-10-22T07:51:25Z", "ms": -384797315175.3711 }, "end": { "local": "1957-10-23T12:43:20+08:00", "utc": "1957-10-23T04:43:20Z", "ms": -384722199637.9634 } }, "kaala": "nishita", "days": [ { "local_date": "1957-10-22", "window": { "start": { "local": "1957-10-23T00:10:13+08:00", "utc": "1957-10-22T16:10:13Z", "ms": -384767387186.4657 }, "end": { "local": "1957-10-23T00:58:13+08:00", "utc": "1957-10-22T16:58:13Z", "ms": -384764507186.4657 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-10-23", "window": { "start": { "local": "1957-10-24T00:10:04+08:00", "utc": "1957-10-23T16:10:04Z", "ms": -384680995628.2755 }, "end": { "local": "1957-10-24T00:58:04+08:00", "utc": "1957-10-23T16:58:04Z", "ms": -384678115628.2755 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 15:51 on Tue 22 Oct to 12:43 on Wed 23 Oct.", "fact": "1957-10-22T07:51:25Z → 1957-10-23T04:43:20Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:10–00:58 on the 22nd, 00:10–00:58 on the 23rd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29928 s" }, { "step": "ruling", "text": "Kālī Pūjā, Qingyang, 1957: Tuesday 22 October.", "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": "1957-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-22", "confidence": "determinate" } ], "quote": "In Qingyang, Kālī Pūjā 1957 falls on Tuesday 22 October. Amāvasyā runs from 15:51 on Tue 22 Oct to 12:43 on Wed 23 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 856, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1957-10-23T12:43:20+08:00", "utc": "1957-10-23T04:43:20Z", "ms": -384722199637.9634 }, "end": { "local": "1957-10-24T09:53:49+08:00", "utc": "1957-10-24T01:53:49Z", "ms": -384645970846.5418 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-23T12:43:20+08:00", "utc": "1957-10-23T04:43:20Z", "ms": -384722199637.9634 }, "end": { "local": "1957-10-24T09:53:49+08:00", "utc": "1957-10-24T01:53:49Z", "ms": -384645970846.5418 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-10-23", "window": { "start": { "local": "1957-10-23T12:09:37+08:00", "utc": "1957-10-23T04:09:37Z", "ms": -384724223155.8672 }, "end": { "local": "1957-10-23T12:57:37+08:00", "utc": "1957-10-23T04:57:37Z", "ms": -384721343155.8672 } }, "covered_min": 14, "window_min": 48, "qualifies": true }, { "local_date": "1957-10-24", "window": { "start": { "local": "1957-10-24T12:09:29+08:00", "utc": "1957-10-24T04:09:29Z", "ms": -384637831089.3917 }, "end": { "local": "1957-10-24T12:57:29+08:00", "utc": "1957-10-24T04:57:29Z", "ms": -384634951089.3917 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:43 on Wed 23 Oct to 09:54 on Thu 24 Oct.", "fact": "1957-10-23T04:43:20Z → 1957-10-24T01:53:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 23rd, 12:09–12:57 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 14 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "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 856 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Qingyang, 1957: Wednesday 23 October.", "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": "1957-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-23", "confidence": "determinate" } ], "quote": "In Qingyang, Govardhana Pūjā 1957 falls on Wednesday 23 October. Pratipadā runs from 12:43 on Wed 23 Oct to 09:54 on Thu 24 Oct and covers 14 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19270, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1957-10-23T12:43:20+08:00", "utc": "1957-10-23T04:43:20Z", "ms": -384722199637.9634 }, "end": { "local": "1957-10-24T09:53:49+08:00", "utc": "1957-10-24T01:53:49Z", "ms": -384645970846.5418 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-23T12:43:20+08:00", "utc": "1957-10-23T04:43:20Z", "ms": -384722199637.9634 }, "end": { "local": "1957-10-24T09:53:49+08:00", "utc": "1957-10-24T01:53:49Z", "ms": -384645970846.5418 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-10-23", "window": { "start": { "local": "1957-10-23T18:04:30+08:00", "utc": "1957-10-23T10:04:30Z", "ms": -384702929625.51495 }, "end": { "local": "1957-10-23T19:48:23+08:00", "utc": "1957-10-23T11:48:23Z", "ms": -384696696559.5844 } }, "covered_min": 104, "window_min": 104, "qualifies": true }, { "local_date": "1957-10-24", "window": { "start": { "local": "1957-10-24T18:03:19+08:00", "utc": "1957-10-24T10:03:19Z", "ms": -384616600547.7474 }, "end": { "local": "1957-10-24T19:47:29+08:00", "utc": "1957-10-24T11:47:29Z", "ms": -384610350637.75867 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:43 on Wed 23 Oct to 09:54 on Thu 24 Oct.", "fact": "1957-10-23T04:43:20Z → 1957-10-24T01:53:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:05–19:48 on the 23rd, 18:03–19:47 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 104 of 104 minutes on the 23rd and 0 of 104 on the 24th.", "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 19270 s" }, { "step": "ruling", "text": "Bali Pūjā, Qingyang, 1957: Wednesday 23 October.", "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": "1957-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-23", "confidence": "determinate" } ], "quote": "In Qingyang, Bali Pūjā 1957 falls on Wednesday 23 October. Pratipadā runs from 12:43 on Wed 23 Oct to 09:54 on Thu 24 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8140, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1957-10-24T09:53:49+08:00", "utc": "1957-10-24T01:53:49Z", "ms": -384645970846.5418 }, "end": { "local": "1957-10-25T07:31:40+08:00", "utc": "1957-10-24T23:31:40Z", "ms": -384568100110.2705 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-24T09:53:49+08:00", "utc": "1957-10-24T01:53:49Z", "ms": -384645970846.5418 }, "end": { "local": "1957-10-25T07:31:40+08:00", "utc": "1957-10-24T23:31:40Z", "ms": -384568100110.2705 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-10-24", "window": { "start": { "local": "1957-10-24T12:09:29+08:00", "utc": "1957-10-24T04:09:29Z", "ms": -384637831089.3917 }, "end": { "local": "1957-10-24T12:57:29+08:00", "utc": "1957-10-24T04:57:29Z", "ms": -384634951089.3917 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-10-25", "window": { "start": { "local": "1957-10-25T12:09:22+08:00", "utc": "1957-10-25T04:09:22Z", "ms": -384551438324.3269 }, "end": { "local": "1957-10-25T12:57:22+08:00", "utc": "1957-10-25T04:57:22Z", "ms": -384548558324.3269 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 09:54 on Thu 24 Oct to 07:32 on Fri 25 Oct.", "fact": "1957-10-24T01:53:49Z → 1957-10-24T23:31:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 24th, 12:09–12:57 on the 25th.", "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 24th and 0 of 48 on the 25th.", "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 8140 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Qingyang, 1957: Thursday 24 October.", "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": "1957-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-24", "confidence": "determinate" } ], "quote": "In Qingyang, Yama Dvitīyā (Bhai Dooj) 1957 falls on Thursday 24 October. Dvitīyā runs from 09:54 on Thu 24 Oct to 07:32 on Fri 25 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2983, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1957-10-23T12:43:20+08:00", "utc": "1957-10-23T04:43:20Z", "ms": -384722199637.9634 }, "end": { "local": "1957-10-24T09:53:49+08:00", "utc": "1957-10-24T01:53:49Z", "ms": -384645970846.5418 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-23T12:43:20+08:00", "utc": "1957-10-23T04:43:20Z", "ms": -384722199637.9634 }, "end": { "local": "1957-10-24T09:53:49+08:00", "utc": "1957-10-24T01:53:49Z", "ms": -384645970846.5418 } }, "kaala": "purvahna", "days": [ { "local_date": "1957-10-23", "window": { "start": { "local": "1957-10-23T07:02:43+08:00", "utc": "1957-10-22T23:02:43Z", "ms": -384742636686.2194 }, "end": { "local": "1957-10-23T10:43:19+08:00", "utc": "1957-10-23T02:43:19Z", "ms": -384729400999.31793 } }, "covered_min": 0, "window_min": 221, "qualifies": false }, { "local_date": "1957-10-24", "window": { "start": { "local": "1957-10-24T07:03:38+08:00", "utc": "1957-10-23T23:03:38Z", "ms": -384656181631.036 }, "end": { "local": "1957-10-24T10:43:32+08:00", "utc": "1957-10-24T02:43:32Z", "ms": -384642987936.60645 } }, "covered_min": 170, "window_min": 220, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:43 on Wed 23 Oct to 09:54 on Thu 24 Oct.", "fact": "1957-10-23T04:43:20Z → 1957-10-24T01:53:49Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:03–10:43 on the 23rd, 07:04–10:44 on the 24th.", "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 221 minutes on the 23rd and 170 of 220 on the 24th.", "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 2983 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Qingyang, 1957: Thursday 24 October.", "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": "1957-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-24", "confidence": "determinate" } ], "quote": "In Qingyang, Dyūta Pratipad 1957 falls on Thursday 24 October. Pratipadā runs from 12:43 on Wed 23 Oct to 09:54 on Thu 24 Oct and covers 170 of 220 minutes of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23068, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-10-26T05:44:47+08:00", "utc": "1957-10-25T21:44:47Z", "ms": -384488112661.2189 }, "end": { "local": "1957-10-27T04:39:33+08:00", "utc": "1957-10-26T20:39:33Z", "ms": -384405626711.3289 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-26T05:44:47+08:00", "utc": "1957-10-25T21:44:47Z", "ms": -384488112661.2189 }, "end": { "local": "1957-10-27T04:39:33+08:00", "utc": "1957-10-26T20:39:33Z", "ms": -384405626711.3289 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-10-26", "window": { "start": { "local": "1957-10-26T12:09:15+08:00", "utc": "1957-10-26T04:09:15Z", "ms": -384465044851.2097 }, "end": { "local": "1957-10-26T12:57:15+08:00", "utc": "1957-10-26T04:57:15Z", "ms": -384462164851.2097 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-10-27", "window": { "start": { "local": "1957-10-27T12:09:09+08:00", "utc": "1957-10-27T04:09:09Z", "ms": -384378650660.2373 }, "end": { "local": "1957-10-27T12:57:09+08:00", "utc": "1957-10-27T04:57:09Z", "ms": -384375770660.2373 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:45 on Sat 26 Oct to 04:40 on Sun 27 Oct.", "fact": "1957-10-25T21:44:47Z → 1957-10-26T20:39:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 26th, 12:09–12:57 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23068 s" }, { "step": "ruling", "text": "Nāga Caturthī, Qingyang, 1957: Saturday 26 October.", "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": "1957-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-26", "confidence": "determinate" } ], "quote": "In Qingyang, Nāga Caturthī 1957 falls on Saturday 26 October. Caturthī runs from 05:45 on Sat 26 Oct to 04:40 on Sun 27 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/vinayaka-chaturthi?on=1957-10-26", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23068, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-10-26T05:44:47+08:00", "utc": "1957-10-25T21:44:47Z", "ms": -384488112661.2189 }, "end": { "local": "1957-10-27T04:39:33+08:00", "utc": "1957-10-26T20:39:33Z", "ms": -384405626711.3289 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-26T05:44:47+08:00", "utc": "1957-10-25T21:44:47Z", "ms": -384488112661.2189 }, "end": { "local": "1957-10-27T04:39:33+08:00", "utc": "1957-10-26T20:39:33Z", "ms": -384405626711.3289 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-10-26", "window": { "start": { "local": "1957-10-26T12:09:15+08:00", "utc": "1957-10-26T04:09:15Z", "ms": -384465044851.2097 }, "end": { "local": "1957-10-26T12:57:15+08:00", "utc": "1957-10-26T04:57:15Z", "ms": -384462164851.2097 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-10-27", "window": { "start": { "local": "1957-10-27T12:09:09+08:00", "utc": "1957-10-27T04:09:09Z", "ms": -384378650660.2373 }, "end": { "local": "1957-10-27T12:57:09+08:00", "utc": "1957-10-27T04:57:09Z", "ms": -384375770660.2373 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:45 on Sat 26 Oct to 04:40 on Sun 27 Oct.", "fact": "1957-10-25T21:44:47Z → 1957-10-26T20:39:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 26th, 12:09–12:57 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23068 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Saturday 26 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": "1957-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-26", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Saturday 26 October. Caturthī runs from 05:45 on Sat 26 Oct to 04:40 on Sun 27 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-10-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26516, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1957-10-28T04:20:00+08:00", "utc": "1957-10-27T20:20:00Z", "ms": -384320399805.4621 }, "end": { "local": "1957-10-29T04:47:04+08:00", "utc": "1957-10-28T20:47:04Z", "ms": -384232376458.50714 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-28T04:20:00+08:00", "utc": "1957-10-27T20:20:00Z", "ms": -384320399805.4621 }, "end": { "local": "1957-10-29T04:47:04+08:00", "utc": "1957-10-28T20:47:04Z", "ms": -384232376458.50714 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-10-28", "window": { "start": { "local": "1957-10-28T12:09:04+08:00", "utc": "1957-10-28T04:09:04Z", "ms": -384292255741.1738 }, "end": { "local": "1957-10-28T12:57:04+08:00", "utc": "1957-10-28T04:57:04Z", "ms": -384289375741.1738 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-10-29", "window": { "start": { "local": "1957-10-29T12:09:00+08:00", "utc": "1957-10-29T04:09:00Z", "ms": -384205860083.40027 }, "end": { "local": "1957-10-29T12:57:00+08:00", "utc": "1957-10-29T04:57:00Z", "ms": -384202980083.40027 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 04:20 on Mon 28 Oct to 04:47 on Tue 29 Oct.", "fact": "1957-10-27T20:20:00Z → 1957-10-28T20:47:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 28th, 12:09–12:57 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26516 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Qingyang, 1957: Monday 28 October.", "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": "1957-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-28", "confidence": "determinate" } ], "quote": "In Qingyang, Sūrya Ṣaṣṭhī (Chhath) 1957 falls on Monday 28 October. Ṣaṣṭhī runs from 04:20 on Mon 28 Oct to 04:47 on Tue 29 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15778, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1957-10-30T05:57:55+08:00", "utc": "1957-10-29T21:57:55Z", "ms": -384141724698.04034 }, "end": { "local": "1957-10-31T07:45:55+08:00", "utc": "1957-10-30T23:45:55Z", "ms": -384048844912.60626 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-30T05:57:55+08:00", "utc": "1957-10-29T21:57:55Z", "ms": -384141724698.04034 }, "end": { "local": "1957-10-31T07:45:55+08:00", "utc": "1957-10-30T23:45:55Z", "ms": -384048844912.60626 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-10-30", "window": { "start": { "local": "1957-10-30T12:08:56+08:00", "utc": "1957-10-30T04:08:56Z", "ms": -384119463676.04956 }, "end": { "local": "1957-10-30T12:56:56+08:00", "utc": "1957-10-30T04:56:56Z", "ms": -384116583676.04956 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-10-31", "window": { "start": { "local": "1957-10-31T12:08:53+08:00", "utc": "1957-10-31T04:08:53Z", "ms": -384033066508.164 }, "end": { "local": "1957-10-31T12:56:53+08:00", "utc": "1957-10-31T04:56:53Z", "ms": -384030186508.164 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 05:58 on Wed 30 Oct to 07:46 on Thu 31 Oct.", "fact": "1957-10-29T21:57:55Z → 1957-10-30T23:45:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 30th, 12:09–12:57 on the 31st.", "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 30th and 0 of 48 on the 31st.", "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 15778 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Qingyang, 1957: Wednesday 30 October.", "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": "1957-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-30", "confidence": "determinate" } ], "quote": "In Qingyang, Gopāṣṭamī 1957 falls on Wednesday 30 October. Aṣṭamī runs from 05:58 on Wed 30 Oct to 07:46 on Thu 31 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-31", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2142, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1957-10-31T07:45:55+08:00", "utc": "1957-10-30T23:45:55Z", "ms": -384048844912.60626 }, "end": { "local": "1957-11-01T10:01:03+08:00", "utc": "1957-11-01T02:01:03Z", "ms": -383954337337.9372 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-31T07:45:55+08:00", "utc": "1957-10-30T23:45:55Z", "ms": -384048844912.60626 }, "end": { "local": "1957-11-01T10:01:03+08:00", "utc": "1957-11-01T02:01:03Z", "ms": -383954337337.9372 } }, "kaala": "purvahna", "days": [ { "local_date": "1957-10-31", "window": { "start": { "local": "1957-10-31T07:10:13+08:00", "utc": "1957-10-30T23:10:13Z", "ms": -384050986897.6246 }, "end": { "local": "1957-10-31T10:45:20+08:00", "utc": "1957-10-31T02:45:20Z", "ms": -384038079971.3175 } }, "covered_min": 179, "window_min": 215, "qualifies": true }, { "local_date": "1957-11-01", "window": { "start": { "local": "1957-11-01T07:11:11+08:00", "utc": "1957-10-31T23:11:11Z", "ms": -383964529288.88556 }, "end": { "local": "1957-11-01T10:45:38+08:00", "utc": "1957-11-01T02:45:38Z", "ms": -383951662142.18805 } }, "covered_min": 170, "window_min": 214, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Navamī runs from 07:46 on Thu 31 Oct to 10:01 on Fri 1 Nov.", "fact": "1957-10-30T23:45:55Z → 1957-11-01T02:01:03Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:10–10:45 on the 31st, 07:11–10:46 on the 1st.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 179 of 215 minutes on the 31st and 170 of 214 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both forenoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2142 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Qingyang, 1957: Thursday 31 October.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "akshaya-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-10-31", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-31", "confidence": "boundary" } ], "quote": "In Qingyang, Akṣaya Navamī (Amla Navami) 1957 falls on Thursday 31 October. Navamī runs from 07:46 on Thu 31 Oct to 10:01 on Fri 1 Nov and covers 179 of 215 minutes of pūrvāhṇa that forenoon. It also reaches the next forenoon for 170 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/1957/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/1957/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7669, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1957-10-31T07:45:55+08:00", "utc": "1957-10-30T23:45:55Z", "ms": -384048844912.60626 }, "end": { "local": "1957-11-01T10:01:03+08:00", "utc": "1957-11-01T02:01:03Z", "ms": -383954337337.9372 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-10-31T07:45:55+08:00", "utc": "1957-10-30T23:45:55Z", "ms": -384048844912.60626 }, "end": { "local": "1957-11-01T10:01:03+08:00", "utc": "1957-11-01T02:01:03Z", "ms": -383954337337.9372 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-10-31", "window": { "start": { "local": "1957-10-31T12:08:53+08:00", "utc": "1957-10-31T04:08:53Z", "ms": -384033066508.164 }, "end": { "local": "1957-10-31T12:56:53+08:00", "utc": "1957-10-31T04:56:53Z", "ms": -384030186508.164 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-11-01", "window": { "start": { "local": "1957-11-01T12:08:51+08:00", "utc": "1957-11-01T04:08:51Z", "ms": -383946668568.83936 }, "end": { "local": "1957-11-01T12:56:51+08:00", "utc": "1957-11-01T04:56:51Z", "ms": -383943788568.83936 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 07:46 on Thu 31 Oct to 10:01 on Fri 1 Nov.", "fact": "1957-10-30T23:45:55Z → 1957-11-01T02:01:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 31st, 12:09–12:57 on the 1st.", "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 31st and 0 of 48 on the 1st.", "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 7669 s" }, { "step": "ruling", "text": "Durgā Navamī, Qingyang, 1957: Thursday 31 October.", "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": "1957-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-10-31", "confidence": "determinate" } ], "quote": "In Qingyang, Durgā Navamī 1957 falls on Thursday 31 October. Navamī runs from 07:46 on Thu 31 Oct to 10:01 on Fri 1 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-11-03", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19144, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-11-02T12:31:13+08:00", "utc": "1957-11-02T04:31:13Z", "ms": -383858927211.40234 }, "end": { "local": "1957-11-03T15:03:56+08:00", "utc": "1957-11-03T07:03:56Z", "ms": -383763364390.2459 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-11-02T12:31:13+08:00", "utc": "1957-11-02T04:31:13Z", "ms": -383858927211.40234 }, "end": { "local": "1957-11-03T15:03:56+08:00", "utc": "1957-11-03T07:03:56Z", "ms": -383763364390.2459 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-11-02", "window": { "start": { "local": "1957-11-02T07:12:09+08:00", "utc": "1957-11-01T23:12:09Z", "ms": -383878071406.52155 }, "end": { "local": "1957-11-02T07:12:09+08:00", "utc": "1957-11-01T23:12:09Z", "ms": -383878071406.52155 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-11-03", "window": { "start": { "local": "1957-11-03T07:13:07+08:00", "utc": "1957-11-02T23:13:07Z", "ms": -383791613262.11755 }, "end": { "local": "1957-11-03T07:13:07+08:00", "utc": "1957-11-02T23:13:07Z", "ms": -383791613262.11755 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:31 on Sat 2 Nov to 15:04 on Sun 3 Nov.", "fact": "1957-11-02T04:31:13Z → 1957-11-03T07:03:56Z" }, { "step": "kaala", "text": "Sunrise is at 07:12 on the 2nd and 07:13 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 19144 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Qingyang, 1957: Sunday 3 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-03", "confidence": "determinate" } ], "quote": "In Qingyang, Prabodhinī Ekādaśī 1957 falls on Sunday 3 November. Ekādaśī runs from 12:31 on Sat 2 Nov to 15:04 on Sun 3 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-11-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-11-04", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-04", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 230, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-11-04T17:27:54+08:00", "utc": "1957-11-04T09:27:54Z", "ms": -383668325992.0135 }, "end": { "local": "1957-11-05T19:34:12+08:00", "utc": "1957-11-05T11:34:12Z", "ms": -383574348045.272 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-11-04T17:27:54+08:00", "utc": "1957-11-04T09:27:54Z", "ms": -383668325992.0135 }, "end": { "local": "1957-11-05T19:34:12+08:00", "utc": "1957-11-05T11:34:12Z", "ms": -383574348045.272 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-11-04", "window": { "start": { "local": "1957-11-04T17:51:35+08:00", "utc": "1957-11-04T09:51:35Z", "ms": -383666905164.09845 }, "end": { "local": "1957-11-04T19:38:43+08:00", "utc": "1957-11-04T11:38:43Z", "ms": -383660477307.17395 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1957-11-05", "window": { "start": { "local": "1957-11-05T17:50:38+08:00", "utc": "1957-11-05T09:50:38Z", "ms": -383580561535.08636 }, "end": { "local": "1957-11-05T19:38:02+08:00", "utc": "1957-11-05T11:38:02Z", "ms": -383574118314.88086 } }, "covered_min": 104, "window_min": 107, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:28 on Mon 4 Nov to 19:34 on Tue 5 Nov.", "fact": "1957-11-04T09:27:54Z → 1957-11-05T11:34:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:52–19:39 on the 4th, 17:51–19:38 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 107 of 107 minutes on the 4th and 104 of 107 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 230 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Monday 4 November.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-11-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-04", "confidence": "boundary" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Monday 4 November. Trayodaśī runs from 17:28 on Mon 4 Nov to 19:34 on Tue 5 Nov and covers all of pradoṣa that evening. It also reaches the next evening for 104 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 3 min 50 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-11-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5847, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-11-06T21:16:42+08:00", "utc": "1957-11-06T13:16:42Z", "ms": -383481797694.5085 }, "end": { "local": "1957-11-07T22:31:58+08:00", "utc": "1957-11-07T14:31:58Z", "ms": -383390881516.31696 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-11-06T21:16:42+08:00", "utc": "1957-11-06T13:16:42Z", "ms": -383481797694.5085 }, "end": { "local": "1957-11-07T22:31:58+08:00", "utc": "1957-11-07T14:31:58Z", "ms": -383390881516.31696 } }, "kaala": "nishita", "days": [ { "local_date": "1957-11-06", "window": { "start": { "local": "1957-11-07T00:09:23+08:00", "utc": "1957-11-06T16:09:23Z", "ms": -383471437403.00964 }, "end": { "local": "1957-11-07T00:57:23+08:00", "utc": "1957-11-06T16:57:23Z", "ms": -383468557403.00964 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-11-07", "window": { "start": { "local": "1957-11-08T00:09:25+08:00", "utc": "1957-11-07T16:09:25Z", "ms": -383385034523.0637 }, "end": { "local": "1957-11-08T00:57:25+08:00", "utc": "1957-11-07T16:57:25Z", "ms": -383382154523.0637 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:17 on Wed 6 Nov to 22:32 on Thu 7 Nov.", "fact": "1957-11-06T13:16:42Z → 1957-11-07T14:31:58Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:09–00:57 on the 6th, 00:09–00:57 on the 7th.", "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 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5847 s" }, { "step": "ruling", "text": "Rāsayātrā, Qingyang, 1957: Wednesday 6 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": "1957-11-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-06", "confidence": "determinate" } ], "quote": "In Qingyang, Rāsayātrā 1957 falls on Wednesday 6 November. Pūrṇimā runs from 21:17 on Wed 6 Nov to 22:32 on Thu 7 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29989, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-11-06T21:16:42+08:00", "utc": "1957-11-06T13:16:42Z", "ms": -383481797694.5085 }, "end": { "local": "1957-11-07T22:31:58+08:00", "utc": "1957-11-07T14:31:58Z", "ms": -383390881516.31696 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1957-11-06T21:16:42+08:00", "utc": "1957-11-06T13:16:42Z", "ms": -383481797694.5085 }, "end": { "local": "1957-11-07T22:31:58+08:00", "utc": "1957-11-07T14:31:58Z", "ms": -383390881516.31696 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-11-06", "window": { "start": { "local": "1957-11-06T12:08:53+08:00", "utc": "1957-11-06T04:08:53Z", "ms": -383514666933.8528 }, "end": { "local": "1957-11-06T12:56:53+08:00", "utc": "1957-11-06T04:56:53Z", "ms": -383511786933.8528 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-11-07", "window": { "start": { "local": "1957-11-07T12:08:56+08:00", "utc": "1957-11-07T04:08:56Z", "ms": -383428264150.0776 }, "end": { "local": "1957-11-07T12:56:56+08:00", "utc": "1957-11-07T04:56:56Z", "ms": -383425384150.0776 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:17 on Wed 6 Nov to 22:32 on Thu 7 Nov.", "fact": "1957-11-06T13:16:42Z → 1957-11-07T14:31:58Z" }, { "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": "Pūrṇimā 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: unstated → only-day · margin 29989 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Qingyang, 1957: Thursday 7 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": "1957-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-07", "confidence": "determinate" } ], "quote": "In Qingyang, Kārtikī Pūrṇimā 1957 falls on Thursday 7 November. Pūrṇimā runs from 21:17 on Wed 6 Nov to 22:32 on Thu 7 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-11-11", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6992, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-11-10T23:28:31+08:00", "utc": "1957-11-10T15:28:31Z", "ms": -383128289295.8003 }, "end": { "local": "1957-11-11T22:54:16+08:00", "utc": "1957-11-11T14:54:16Z", "ms": -383043943605.5896 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-11-10T23:28:31+08:00", "utc": "1957-11-10T15:28:31Z", "ms": -383128289295.8003 }, "end": { "local": "1957-11-11T22:54:16+08:00", "utc": "1957-11-11T14:54:16Z", "ms": -383043943605.5896 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-11-10", "window": { "start": { "local": "1957-11-10T20:00:58+08:00", "utc": "1957-11-10T12:00:58Z", "ms": -383140742007.421 }, "end": { "local": "1957-11-10T20:00:58+08:00", "utc": "1957-11-10T12:00:58Z", "ms": -383140742007.421 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-11-11", "window": { "start": { "local": "1957-11-11T20:57:44+08:00", "utc": "1957-11-11T12:57:44Z", "ms": -383050935707.0756 }, "end": { "local": "1957-11-11T20:57:44+08:00", "utc": "1957-11-11T12:57:44Z", "ms": -383050935707.0756 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:29 on Sun 10 Nov to 22:54 on Mon 11 Nov.", "fact": "1957-11-10T15:28:31Z → 1957-11-11T14:54:16Z" }, { "step": "kaala", "text": "Moonrise is at 20:01 on the 10th and 20:58 on the 11th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 10th and is on the 11th.", "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 6992 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Monday 11 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": "1957-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-11", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Monday 11 November. Caturthī runs from 23:29 on Sun 10 Nov to 22:54 on Mon 11 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-11-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/ekadashi?on=1957-11-18", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8490, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-11-17T12:21:23+08:00", "utc": "1957-11-17T04:21:23Z", "ms": -382563516734.89075 }, "end": { "local": "1957-11-18T09:49:29+08:00", "utc": "1957-11-18T01:49:29Z", "ms": -382486230601.897 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-11-17T12:21:23+08:00", "utc": "1957-11-17T04:21:23Z", "ms": -382563516734.89075 }, "end": { "local": "1957-11-18T09:49:29+08:00", "utc": "1957-11-18T01:49:29Z", "ms": -382486230601.897 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-11-17", "window": { "start": { "local": "1957-11-17T07:27:00+08:00", "utc": "1957-11-16T23:27:00Z", "ms": -382581180460.5523 }, "end": { "local": "1957-11-17T07:27:00+08:00", "utc": "1957-11-16T23:27:00Z", "ms": -382581180460.5523 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-11-18", "window": { "start": { "local": "1957-11-18T07:27:59+08:00", "utc": "1957-11-17T23:27:59Z", "ms": -382494720504.0959 }, "end": { "local": "1957-11-18T07:27:59+08:00", "utc": "1957-11-17T23:27:59Z", "ms": -382494720504.0959 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:21 on Sun 17 Nov to 09:49 on Mon 18 Nov.", "fact": "1957-11-17T04:21:23Z → 1957-11-18T01:49:29Z" }, { "step": "kaala", "text": "Sunrise is at 07:27 on the 17th and 07:28 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 17th and is on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8490 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Qingyang, 1957: Monday 18 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": "1957-11-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-18", "confidence": "determinate" } ], "quote": "In Qingyang, Utpannā Ekādaśī 1957 falls on Monday 18 November. Ekādaśī runs from 12:21 on Sun 17 Nov to 09:49 on Mon 18 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-11-18", "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/1957/pradosha-vrata?on=1957-11-19", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33197, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-11-19T07:15:07+08:00", "utc": "1957-11-18T23:15:07Z", "ms": -382409092631.8203 }, "end": { "local": "1957-11-20T04:44:09+08:00", "utc": "1957-11-19T20:44:09Z", "ms": -382331751233.5229 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-11-19T07:15:07+08:00", "utc": "1957-11-18T23:15:07Z", "ms": -382409092631.8203 }, "end": { "local": "1957-11-20T04:44:09+08:00", "utc": "1957-11-19T20:44:09Z", "ms": -382331751233.5229 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-11-18", "window": { "start": { "local": "1957-11-18T17:40:47+08:00", "utc": "1957-11-18T09:40:47Z", "ms": -382457953193.02435 }, "end": { "local": "1957-11-18T19:31:12+08:00", "utc": "1957-11-18T11:31:12Z", "ms": -382451327520.2078 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "1957-11-19", "window": { "start": { "local": "1957-11-19T17:40:13+08:00", "utc": "1957-11-19T09:40:13Z", "ms": -382371586797.72894 }, "end": { "local": "1957-11-19T19:30:51+08:00", "utc": "1957-11-19T11:30:51Z", "ms": -382364948681.95575 } }, "covered_min": 111, "window_min": 111, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:15 on Tue 19 Nov to 04:44 on Wed 20 Nov.", "fact": "1957-11-18T23:15:07Z → 1957-11-19T20:44:09Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:41–19:31 on the 18th, 17:40–19:31 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 110 minutes on the 18th and 111 of 111 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33197 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Tuesday 19 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-11-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-19", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Tuesday 19 November. Trayodaśī runs from 07:15 on Tue 19 Nov to 04:44 on Wed 20 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-11-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-11-20", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5029, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-11-20T04:44:09+08:00", "utc": "1957-11-19T20:44:09Z", "ms": -382331751233.5229 }, "end": { "local": "1957-11-21T02:23:09+08:00", "utc": "1957-11-20T18:23:09Z", "ms": -382253810900.50336 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-11-20T04:44:09+08:00", "utc": "1957-11-19T20:44:09Z", "ms": -382331751233.5229 }, "end": { "local": "1957-11-21T02:23:09+08:00", "utc": "1957-11-20T18:23:09Z", "ms": -382253810900.50336 } }, "kaala": "nishita", "days": [ { "local_date": "1957-11-19", "window": { "start": { "local": "1957-11-20T00:11:06+08:00", "utc": "1957-11-19T16:11:06Z", "ms": -382348133863.57947 }, "end": { "local": "1957-11-20T00:59:06+08:00", "utc": "1957-11-19T16:59:06Z", "ms": -382345253863.57947 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-11-20", "window": { "start": { "local": "1957-11-21T00:11:20+08:00", "utc": "1957-11-20T16:11:20Z", "ms": -382261719987.0547 }, "end": { "local": "1957-11-21T00:59:20+08:00", "utc": "1957-11-20T16:59:20Z", "ms": -382258839987.0547 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:44 on Wed 20 Nov to 02:23 on Thu 21 Nov.", "fact": "1957-11-19T20:44:09Z → 1957-11-20T18:23:09Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:11–00:59 on the 19th, 00:11–00:59 on the 20th.", "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 19th and 48 of 48 on the 20th.", "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 5029 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Wednesday 20 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": "1957-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-20", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Wednesday 20 November. Caturdaśī runs from 04:44 on Wed 20 Nov to 02:23 on Thu 21 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-11-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-11-25", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28866, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-11-24T21:01:00+08:00", "utc": "1957-11-24T13:01:00Z", "ms": -381927539916.93085 }, "end": { "local": "1957-11-25T21:11:50+08:00", "utc": "1957-11-25T13:11:50Z", "ms": -381840489759.37634 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-11-24T21:01:00+08:00", "utc": "1957-11-24T13:01:00Z", "ms": -381927539916.93085 }, "end": { "local": "1957-11-25T21:11:50+08:00", "utc": "1957-11-25T13:11:50Z", "ms": -381840489759.37634 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-11-24", "window": { "start": { "local": "1957-11-24T12:11:54+08:00", "utc": "1957-11-24T04:11:54Z", "ms": -381959285749.24524 }, "end": { "local": "1957-11-24T12:59:54+08:00", "utc": "1957-11-24T04:59:54Z", "ms": -381956405749.24524 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-11-25", "window": { "start": { "local": "1957-11-25T12:12:12+08:00", "utc": "1957-11-25T04:12:12Z", "ms": -381872867793.62256 }, "end": { "local": "1957-11-25T13:00:12+08:00", "utc": "1957-11-25T05:00:12Z", "ms": -381869987793.62256 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:01 on Sun 24 Nov to 21:12 on Mon 25 Nov.", "fact": "1957-11-24T13:01:00Z → 1957-11-25T13:11:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 24th, 12:12–13:00 on the 25th.", "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 24th and 48 of 48 on the 25th.", "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 28866 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Monday 25 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": "1957-11-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-25", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Monday 25 November. Caturthī runs from 21:01 on Sun 24 Nov to 21:12 on Mon 25 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-11-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29498, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1957-11-25T21:11:50+08:00", "utc": "1957-11-25T13:11:50Z", "ms": -381840489759.37634 }, "end": { "local": "1957-11-26T22:05:22+08:00", "utc": "1957-11-26T14:05:22Z", "ms": -381750877657.49695 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-11-25T21:11:50+08:00", "utc": "1957-11-25T13:11:50Z", "ms": -381840489759.37634 }, "end": { "local": "1957-11-26T22:05:22+08:00", "utc": "1957-11-26T14:05:22Z", "ms": -381750877657.49695 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-11-25", "window": { "start": { "local": "1957-11-25T12:12:12+08:00", "utc": "1957-11-25T04:12:12Z", "ms": -381872867793.62256 }, "end": { "local": "1957-11-25T13:00:12+08:00", "utc": "1957-11-25T05:00:12Z", "ms": -381869987793.62256 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-11-26", "window": { "start": { "local": "1957-11-26T12:12:31+08:00", "utc": "1957-11-26T04:12:31Z", "ms": -381786449089.8444 }, "end": { "local": "1957-11-26T13:00:31+08:00", "utc": "1957-11-26T05:00:31Z", "ms": -381783569089.8444 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 21:12 on Mon 25 Nov to 22:05 on Tue 26 Nov.", "fact": "1957-11-25T13:11:50Z → 1957-11-26T14:05:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 25th, 12:13–13:01 on the 26th.", "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 25th and 48 of 48 on the 26th.", "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 29498 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Qingyang, 1957: Tuesday 26 November.", "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": "1957-11-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-26", "confidence": "determinate" } ], "quote": "In Qingyang, Nāga Pañcamī (Mārgaśīrṣa) 1957 falls on Tuesday 26 November. Pañcamī runs from 21:12 on Mon 25 Nov to 22:05 on Tue 26 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32691, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1957-11-26T22:05:22+08:00", "utc": "1957-11-26T14:05:22Z", "ms": -381750877657.49695 }, "end": { "local": "1957-11-27T23:38:56+08:00", "utc": "1957-11-27T15:38:56Z", "ms": -381658864477.98834 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-11-26T22:05:22+08:00", "utc": "1957-11-26T14:05:22Z", "ms": -381750877657.49695 }, "end": { "local": "1957-11-27T23:38:56+08:00", "utc": "1957-11-27T15:38:56Z", "ms": -381658864477.98834 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-11-26", "window": { "start": { "local": "1957-11-26T12:12:31+08:00", "utc": "1957-11-26T04:12:31Z", "ms": -381786449089.8444 }, "end": { "local": "1957-11-26T13:00:31+08:00", "utc": "1957-11-26T05:00:31Z", "ms": -381783569089.8444 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-11-27", "window": { "start": { "local": "1957-11-27T12:12:50+08:00", "utc": "1957-11-27T04:12:50Z", "ms": -381700029655.2257 }, "end": { "local": "1957-11-27T13:00:50+08:00", "utc": "1957-11-27T05:00:50Z", "ms": -381697149655.2257 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:05 on Tue 26 Nov to 23:39 on Wed 27 Nov.", "fact": "1957-11-26T14:05:22Z → 1957-11-27T15:38:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 26th, 12:13–13:01 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32691 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Qingyang, 1957: Wednesday 27 November.", "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": "1957-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-27", "confidence": "determinate" } ], "quote": "In Qingyang, Campā Ṣaṣṭhī 1957 falls on Wednesday 27 November. Ṣaṣṭhī runs from 22:05 on Tue 26 Nov to 23:39 on Wed 27 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32691, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1957-11-26T22:05:22+08:00", "utc": "1957-11-26T14:05:22Z", "ms": -381750877657.49695 }, "end": { "local": "1957-11-27T23:38:56+08:00", "utc": "1957-11-27T15:38:56Z", "ms": -381658864477.98834 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-11-26T22:05:22+08:00", "utc": "1957-11-26T14:05:22Z", "ms": -381750877657.49695 }, "end": { "local": "1957-11-27T23:38:56+08:00", "utc": "1957-11-27T15:38:56Z", "ms": -381658864477.98834 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-11-26", "window": { "start": { "local": "1957-11-26T12:12:31+08:00", "utc": "1957-11-26T04:12:31Z", "ms": -381786449089.8444 }, "end": { "local": "1957-11-26T13:00:31+08:00", "utc": "1957-11-26T05:00:31Z", "ms": -381783569089.8444 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-11-27", "window": { "start": { "local": "1957-11-27T12:12:50+08:00", "utc": "1957-11-27T04:12:50Z", "ms": -381700029655.2257 }, "end": { "local": "1957-11-27T13:00:50+08:00", "utc": "1957-11-27T05:00:50Z", "ms": -381697149655.2257 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:05 on Tue 26 Nov to 23:39 on Wed 27 Nov.", "fact": "1957-11-26T14:05:22Z → 1957-11-27T15:38:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 26th, 12:13–13:01 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 32691 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Qingyang, 1957: Wednesday 27 November.", "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": "1957-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-27", "confidence": "determinate" } ], "quote": "In Qingyang, Skanda Ṣaṣṭhī 1957 falls on Wednesday 27 November. Ṣaṣṭhī runs from 22:05 on Tue 26 Nov to 23:39 on Wed 27 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37686, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1957-11-27T23:38:56+08:00", "utc": "1957-11-27T15:38:56Z", "ms": -381658864477.98834 }, "end": { "local": "1957-11-29T01:45:25+08:00", "utc": "1957-11-28T17:45:25Z", "ms": -381564874686.8349 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-11-27T23:38:56+08:00", "utc": "1957-11-27T15:38:56Z", "ms": -381658864477.98834 }, "end": { "local": "1957-11-29T01:45:25+08:00", "utc": "1957-11-28T17:45:25Z", "ms": -381564874686.8349 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-11-28", "window": { "start": { "local": "1957-11-28T12:13:10+08:00", "utc": "1957-11-28T04:13:10Z", "ms": -381613609507.4259 }, "end": { "local": "1957-11-28T13:01:10+08:00", "utc": "1957-11-28T05:01:10Z", "ms": -381610729507.4259 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-11-29", "window": { "start": { "local": "1957-11-29T12:13:31+08:00", "utc": "1957-11-29T04:13:31Z", "ms": -381527188664.5408 }, "end": { "local": "1957-11-29T13:01:31+08:00", "utc": "1957-11-29T05:01:31Z", "ms": -381524308664.5408 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 23:39 on Wed 27 Nov to 01:45 on Fri 29 Nov.", "fact": "1957-11-27T15:38:56Z → 1957-11-28T17:45:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 28th, 12:14–13:02 on the 29th.", "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 28th and 0 of 48 on the 29th.", "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 37686 s" }, { "step": "ruling", "text": "Mitra Saptamī, Qingyang, 1957: Thursday 28 November.", "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": "1957-11-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-11-28", "confidence": "determinate" } ], "quote": "In Qingyang, Mitra Saptamī 1957 falls on Thursday 28 November. Saptamī runs from 23:39 on Wed 27 Nov to 01:45 on Fri 29 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/ekadashi?on=1957-12-03", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-12-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5819, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-12-02T09:18:27+08:00", "utc": "1957-12-02T01:18:27Z", "ms": -381278492547.76465 }, "end": { "local": "1957-12-03T11:26:51+08:00", "utc": "1957-12-03T03:26:51Z", "ms": -381184389220.9055 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-12-02T09:18:27+08:00", "utc": "1957-12-02T01:18:27Z", "ms": -381278492547.76465 }, "end": { "local": "1957-12-03T11:26:51+08:00", "utc": "1957-12-03T03:26:51Z", "ms": -381184389220.9055 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-12-02", "window": { "start": { "local": "1957-12-02T07:41:28+08:00", "utc": "1957-12-01T23:41:28Z", "ms": -381284311806.91626 }, "end": { "local": "1957-12-02T07:41:28+08:00", "utc": "1957-12-01T23:41:28Z", "ms": -381284311806.91626 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1957-12-03", "window": { "start": { "local": "1957-12-03T07:42:22+08:00", "utc": "1957-12-02T23:42:22Z", "ms": -381197858096.6731 }, "end": { "local": "1957-12-03T07:42:22+08:00", "utc": "1957-12-02T23:42:22Z", "ms": -381197858096.6731 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:18 on Mon 2 Dec to 11:27 on Tue 3 Dec.", "fact": "1957-12-02T01:18:27Z → 1957-12-03T03:26:51Z" }, { "step": "kaala", "text": "Sunrise is at 07:41 on the 2nd and 07:42 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 5819 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Qingyang, 1957: Tuesday 3 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-12-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-12-03", "confidence": "determinate" } ], "quote": "In Qingyang, Mokṣadā Ekādaśī 1957 falls on Tuesday 3 December. Ekādaśī runs from 09:18 on Mon 2 Dec to 11:27 on Tue 3 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-12-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-12-04", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 78, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1957-12-03T11:26:51+08:00", "utc": "1957-12-03T03:26:51Z", "ms": -381184389220.9055 }, "end": { "local": "1957-12-04T13:04:44+08:00", "utc": "1957-12-04T05:04:44Z", "ms": -381092116407.729 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-12-03T11:26:51+08:00", "utc": "1957-12-03T03:26:51Z", "ms": -381184389220.9055 }, "end": { "local": "1957-12-04T13:04:44+08:00", "utc": "1957-12-04T05:04:44Z", "ms": -381092116407.729 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-12-03", "window": { "start": { "local": "1957-12-03T12:15:01+08:00", "utc": "1957-12-03T04:15:01Z", "ms": -381181498722.68 }, "end": { "local": "1957-12-03T13:03:01+08:00", "utc": "1957-12-03T05:03:01Z", "ms": -381178618722.68 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-12-04", "window": { "start": { "local": "1957-12-04T12:15:25+08:00", "utc": "1957-12-04T04:15:25Z", "ms": -381095074694.52704 }, "end": { "local": "1957-12-04T13:03:25+08:00", "utc": "1957-12-04T05:03:25Z", "ms": -381092194694.52704 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 11:27 on Tue 3 Dec to 13:05 on Wed 4 Dec.", "fact": "1957-12-03T03:26:51Z → 1957-12-04T05:04:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 3rd, 12:15–13:03 on the 4th.", "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 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. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 78 s < 300 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Qingyang, 1957: Wednesday 4 December.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "akhanda-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-12-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-12-04", "confidence": "determinate" } ], "quote": "In Qingyang, Akhaṇḍa Dvādaśī 1957 falls on Wednesday 4 December. Dvādaśī runs from 11:27 on Tue 3 Dec to 13:05 on Wed 4 Dec and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken. It is 1 min 18 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/pradosha-vrata?on=1957-12-04", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-12-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12562, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-12-04T13:04:44+08:00", "utc": "1957-12-04T05:04:44Z", "ms": -381092116407.729 }, "end": { "local": "1957-12-05T14:06:11+08:00", "utc": "1957-12-05T06:06:11Z", "ms": -381002029298.89923 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-12-04T13:04:44+08:00", "utc": "1957-12-04T05:04:44Z", "ms": -381092116407.729 }, "end": { "local": "1957-12-05T14:06:11+08:00", "utc": "1957-12-05T06:06:11Z", "ms": -381002029298.89923 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-12-04", "window": { "start": { "local": "1957-12-04T17:35:36+08:00", "utc": "1957-12-04T09:35:36Z", "ms": -381075864211.8881 }, "end": { "local": "1957-12-04T19:28:44+08:00", "utc": "1957-12-04T11:28:44Z", "ms": -381069076062.9025 } }, "covered_min": 113, "window_min": 113, "qualifies": true }, { "local_date": "1957-12-05", "window": { "start": { "local": "1957-12-05T17:35:33+08:00", "utc": "1957-12-05T09:35:33Z", "ms": -380989467087.4396 }, "end": { "local": "1957-12-05T19:28:48+08:00", "utc": "1957-12-05T11:28:48Z", "ms": -380982671728.3536 } }, "covered_min": 0, "window_min": 113, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:05 on Wed 4 Dec to 14:06 on Thu 5 Dec.", "fact": "1957-12-04T05:04:44Z → 1957-12-05T06:06:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:36–19:29 on the 4th, 17:36–19:29 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 113 of 113 minutes on the 4th and 0 of 113 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12562 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1957: Wednesday 4 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-12-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-12-04", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1957 falls on Wednesday 4 December. Trayodaśī runs from 13:05 on Wed 4 Dec to 14:06 on Thu 5 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-12-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-12-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11170, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1957-12-06T14:29:22+08:00", "utc": "1957-12-06T06:29:22Z", "ms": -380914237549.6827 }, "end": { "local": "1957-12-07T14:15:54+08:00", "utc": "1957-12-07T06:15:54Z", "ms": -380828646062.4024 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-12-06T14:29:22+08:00", "utc": "1957-12-06T06:29:22Z", "ms": -380914237549.6827 }, "end": { "local": "1957-12-07T14:15:54+08:00", "utc": "1957-12-07T06:15:54Z", "ms": -380828646062.4024 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-12-06", "window": { "start": { "local": "1957-12-06T17:35:32+08:00", "utc": "1957-12-06T09:35:32Z", "ms": -380903067972.842 }, "end": { "local": "1957-12-06T19:28:54+08:00", "utc": "1957-12-06T11:28:54Z", "ms": -380896265792.6917 } }, "covered_min": 113, "window_min": 113, "qualifies": true }, { "local_date": "1957-12-07", "window": { "start": { "local": "1957-12-07T17:35:33+08:00", "utc": "1957-12-07T09:35:33Z", "ms": -380816666866.8721 }, "end": { "local": "1957-12-07T19:29:02+08:00", "utc": "1957-12-07T11:29:02Z", "ms": -380809858260.8236 } }, "covered_min": 0, "window_min": 113, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 14:29 on Fri 6 Dec to 14:16 on Sat 7 Dec.", "fact": "1957-12-06T06:29:22Z → 1957-12-07T06:15:54Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:36–19:29 on the 6th, 17:36–19:29 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 113 of 113 minutes on the 6th and 0 of 113 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11170 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Qingyang, 1957: Friday 6 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": "1957-12-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-12-06", "confidence": "determinate" } ], "quote": "In Qingyang, Dattātreyotpatti (Datta Jayanti) 1957 falls on Friday 6 December. Pūrṇimā runs from 14:29 on Fri 6 Dec to 14:16 on Sat 7 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/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/1957/sankashta-chaturthi?on=1957-12-10", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36690, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-12-10T10:42:20+08:00", "utc": "1957-12-10T02:42:20Z", "ms": -380582260219.86346 }, "end": { "local": "1957-12-11T08:53:11+08:00", "utc": "1957-12-11T00:53:11Z", "ms": -380502409298.5281 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-12-10T10:42:20+08:00", "utc": "1957-12-10T02:42:20Z", "ms": -380582260219.86346 }, "end": { "local": "1957-12-11T08:53:11+08:00", "utc": "1957-12-11T00:53:11Z", "ms": -380502409298.5281 } }, "kaala": "moonrise", "days": [ { "local_date": "1957-12-10", "window": { "start": { "local": "1957-12-10T20:53:50+08:00", "utc": "1957-12-10T12:53:50Z", "ms": -380545570259.65 }, "end": { "local": "1957-12-10T20:53:50+08:00", "utc": "1957-12-10T12:53:50Z", "ms": -380545570259.65 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-12-11", "window": { "start": { "local": "1957-12-11T21:59:15+08:00", "utc": "1957-12-11T13:59:15Z", "ms": -380455244766.7565 }, "end": { "local": "1957-12-11T21:59:15+08:00", "utc": "1957-12-11T13:59:15Z", "ms": -380455244766.7565 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:42 on Tue 10 Dec to 08:53 on Wed 11 Dec.", "fact": "1957-12-10T02:42:20Z → 1957-12-11T00:53:11Z" }, { "step": "kaala", "text": "Moonrise is at 20:54 on the 10th and 21:59 on the 11th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 10th and is not on the 11th.", "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 36690 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1957: Tuesday 10 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": "1957-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-12-10", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1957 falls on Tuesday 10 December. Caturthī runs from 10:42 on Tue 10 Dec to 08:53 on Wed 11 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/sankashta-chaturthi?on=1957-12-10", "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/1957/ekadashi?on=1957-12-17", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39747, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1957-12-16T20:50:43+08:00", "utc": "1957-12-16T12:50:43Z", "ms": -380027356700.3588 }, "end": { "local": "1957-12-17T19:04:02+08:00", "utc": "1957-12-17T11:04:02Z", "ms": -379947357721.1049 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-12-16T20:50:43+08:00", "utc": "1957-12-16T12:50:43Z", "ms": -380027356700.3588 }, "end": { "local": "1957-12-17T19:04:02+08:00", "utc": "1957-12-17T11:04:02Z", "ms": -379947357721.1049 } }, "kaala": "sunrise", "days": [ { "local_date": "1957-12-17", "window": { "start": { "local": "1957-12-17T07:53:10+08:00", "utc": "1957-12-16T23:53:10Z", "ms": -379987609722.1613 }, "end": { "local": "1957-12-17T07:53:10+08:00", "utc": "1957-12-16T23:53:10Z", "ms": -379987609722.1613 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1957-12-18", "window": { "start": { "local": "1957-12-18T07:53:47+08:00", "utc": "1957-12-17T23:53:47Z", "ms": -379901172599.0631 }, "end": { "local": "1957-12-18T07:53:47+08:00", "utc": "1957-12-17T23:53:47Z", "ms": -379901172599.0631 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:51 on Mon 16 Dec to 19:04 on Tue 17 Dec.", "fact": "1957-12-16T12:50:43Z → 1957-12-17T11:04:02Z" }, { "step": "kaala", "text": "Sunrise is at 07:53 on the 17th and 07:54 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 17th and is not on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 39747 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Qingyang, 1957: Tuesday 17 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-12-17", "confidence": "determinate" } ], "quote": "In Qingyang, Saphalā Ekādaśī 1957 falls on Tuesday 17 December. Ekādaśī runs from 20:51 on Mon 16 Dec to 19:04 on Tue 17 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1957/ekadashi?on=1957-12-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/pradosha-vrata?on=1957-12-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-12-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 652, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1957-12-18T17:27:03+08:00", "utc": "1957-12-18T09:27:03Z", "ms": -379866776617.8862 }, "end": { "local": "1957-12-19T16:03:05+08:00", "utc": "1957-12-19T08:03:05Z", "ms": -379785414962.0097 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-12-18T17:27:03+08:00", "utc": "1957-12-18T09:27:03Z", "ms": -379866776617.8862 }, "end": { "local": "1957-12-19T16:03:05+08:00", "utc": "1957-12-19T08:03:05Z", "ms": -379785414962.0097 } }, "kaala": "pradosha", "days": [ { "local_date": "1957-12-18", "window": { "start": { "local": "1957-12-18T17:37:55+08:00", "utc": "1957-12-18T09:37:55Z", "ms": -379866124740.94556 }, "end": { "local": "1957-12-18T19:32:07+08:00", "utc": "1957-12-18T11:32:07Z", "ms": -379859273034.2094 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "1957-12-19", "window": { "start": { "local": "1957-12-19T17:38:20+08:00", "utc": "1957-12-19T09:38:20Z", "ms": -379779700383.4462 }, "end": { "local": "1957-12-19T19:32:33+08:00", "utc": "1957-12-19T11:32:33Z", "ms": -379772847371.0577 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:27 on Wed 18 Dec to 16:03 on Thu 19 Dec.", "fact": "1957-12-18T09:27:03Z → 1957-12-19T08:03:05Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:38–19:32 on the 18th, 17:38–19:33 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 114 of 114 minutes on the 18th and 0 of 114 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 652 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1957: Wednesday 18 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1957-12-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-12-18", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1957 falls on Wednesday 18 December. Trayodaśī runs from 17:27 on Wed 18 Dec to 16:03 on Thu 19 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1957/pradosha-vrata?on=1957-12-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/shivaratri?on=1957-12-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-12-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29973, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1957-12-19T16:03:05+08:00", "utc": "1957-12-19T08:03:05Z", "ms": -379785414962.0097 }, "end": { "local": "1957-12-20T14:56:21+08:00", "utc": "1957-12-20T06:56:21Z", "ms": -379703019095.7151 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-12-19T16:03:05+08:00", "utc": "1957-12-19T08:03:05Z", "ms": -379785414962.0097 }, "end": { "local": "1957-12-20T14:56:21+08:00", "utc": "1957-12-20T06:56:21Z", "ms": -379703019095.7151 } }, "kaala": "nishita", "days": [ { "local_date": "1957-12-19", "window": { "start": { "local": "1957-12-20T00:22:38+08:00", "utc": "1957-12-19T16:22:38Z", "ms": -379755441586.9892 }, "end": { "local": "1957-12-20T01:10:38+08:00", "utc": "1957-12-19T17:10:38Z", "ms": -379752561586.9892 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1957-12-20", "window": { "start": { "local": "1957-12-21T00:23:08+08:00", "utc": "1957-12-20T16:23:08Z", "ms": -379669012211.79205 }, "end": { "local": "1957-12-21T01:11:08+08:00", "utc": "1957-12-20T17:11:08Z", "ms": -379666132211.79205 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:03 on Thu 19 Dec to 14:56 on Fri 20 Dec.", "fact": "1957-12-19T08:03:05Z → 1957-12-20T06:56:21Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:23–01:11 on the 19th, 00:23–01:11 on the 20th.", "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 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29973 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1957: Thursday 19 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": "1957-12-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-12-19", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1957 falls on Thursday 19 December. Caturdaśī runs from 16:03 on Thu 19 Dec to 14:56 on Fri 20 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1957/shivaratri?on=1957-12-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-12-25", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1957, "local_date": "1957-12-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6473, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1957-12-24T15:00:45+08:00", "utc": "1957-12-24T07:00:45Z", "ms": -379357154653.44006 }, "end": { "local": "1957-12-25T16:27:49+08:00", "utc": "1957-12-25T08:27:49Z", "ms": -379265530543.8539 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1957-12-24T15:00:45+08:00", "utc": "1957-12-24T07:00:45Z", "ms": -379357154653.44006 }, "end": { "local": "1957-12-25T16:27:49+08:00", "utc": "1957-12-25T08:27:49Z", "ms": -379265530543.8539 } }, "kaala": "madhyahna", "days": [ { "local_date": "1957-12-24", "window": { "start": { "local": "1957-12-24T12:24:53+08:00", "utc": "1957-12-24T04:24:53Z", "ms": -379366507259.25684 }, "end": { "local": "1957-12-24T13:12:53+08:00", "utc": "1957-12-24T05:12:53Z", "ms": -379363627259.25684 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1957-12-25", "window": { "start": { "local": "1957-12-25T12:25:23+08:00", "utc": "1957-12-25T04:25:23Z", "ms": -379280076979.26953 }, "end": { "local": "1957-12-25T13:13:23+08:00", "utc": "1957-12-25T05:13:23Z", "ms": -379277196979.26953 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:01 on Tue 24 Dec to 16:28 on Wed 25 Dec.", "fact": "1957-12-24T07:00:45Z → 1957-12-25T08:27:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 24th, 12:25–13:13 on the 25th.", "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 24th and 48 of 48 on the 25th.", "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 6473 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1957: Wednesday 25 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": "1957-12-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1957-12-25", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1957 falls on Wednesday 25 December. Caturthī runs from 15:01 on Tue 24 Dec to 16:28 on Wed 25 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1957/vinayaka-chaturthi?on=1957-12-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }