{ "id": "/zunyi/festivals/1977", "place": { "id": "1783621", "slug": "zunyi", "name": "Zunyi", "region": "Guizhou, China", "country": "CN", "lat": 27.68667, "lon": 106.90722, "elevation_m": 867, "tz": "Asia/Shanghai" }, "year": 1977, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/zunyi/festivals/1977/ekadashi?on=1977-01-01", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8754, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1976-12-31T10:09:01+08:00", "utc": "1976-12-31T02:09:01Z", "ms": 220846140739.44016 }, "end": { "local": "1977-01-01T12:52:49+08:00", "utc": "1977-01-01T04:52:49Z", "ms": 220942369494.01007 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1976-12-31T10:09:01+08:00", "utc": "1976-12-31T02:09:01Z", "ms": 220846140739.44016 }, "end": { "local": "1977-01-01T12:52:49+08:00", "utc": "1977-01-01T04:52:49Z", "ms": 220942369494.01007 } }, "kaala": "sunrise", "days": [ { "local_date": "1976-12-31", "window": { "start": { "local": "1976-12-31T07:43:06+08:00", "utc": "1976-12-30T23:43:06Z", "ms": 220837386371.7565 }, "end": { "local": "1976-12-31T07:43:06+08:00", "utc": "1976-12-30T23:43:06Z", "ms": 220837386371.7565 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-01-01", "window": { "start": { "local": "1977-01-01T07:43:23+08:00", "utc": "1976-12-31T23:43:23Z", "ms": 220923803479.01306 }, "end": { "local": "1977-01-01T07:43:23+08:00", "utc": "1976-12-31T23:43:23Z", "ms": 220923803479.01306 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:09 on Fri 31 Dec to 12:53 on Sat 1 Jan.", "fact": "1976-12-31T02:09:01Z → 1977-01-01T04:52:49Z" }, { "step": "kaala", "text": "Sunrise is at 07:43 on the 31st and 07:43 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 31st and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8754 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Zunyi, 1977: Saturday 1 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": "1977-01-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-01", "confidence": "determinate" } ], "quote": "In Zunyi, Putradā Ekādaśī 1977 falls on Saturday 1 January. Ekādaśī runs from 10:09 on Fri 31 Dec to 12:53 on Sat 1 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-01-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-01-02", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2531, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-01-02T15:22:09+08:00", "utc": "1977-01-02T07:22:09Z", "ms": 221037729187.28928 }, "end": { "local": "1977-01-03T17:27:37+08:00", "utc": "1977-01-03T09:27:37Z", "ms": 221131657410.26865 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-01-02T15:22:09+08:00", "utc": "1977-01-02T07:22:09Z", "ms": 221037729187.28928 }, "end": { "local": "1977-01-03T17:27:37+08:00", "utc": "1977-01-03T09:27:37Z", "ms": 221131657410.26865 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-01-02", "window": { "start": { "local": "1977-01-02T18:09:06+08:00", "utc": "1977-01-02T10:09:06Z", "ms": 221047746164.26224 }, "end": { "local": "1977-01-02T19:57:44+08:00", "utc": "1977-01-02T11:57:44Z", "ms": 221054264315.96866 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "1977-01-03", "window": { "start": { "local": "1977-01-03T18:09:48+08:00", "utc": "1977-01-03T10:09:48Z", "ms": 221134188052.66092 }, "end": { "local": "1977-01-03T19:58:22+08:00", "utc": "1977-01-03T11:58:22Z", "ms": 221140702310.27536 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:22 on Sun 2 Jan to 17:28 on Mon 3 Jan.", "fact": "1977-01-02T07:22:09Z → 1977-01-03T09:27:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:09–19:58 on the 2nd, 18:10–19:58 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 109 of 109 minutes on the 2nd and 0 of 109 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2531 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Sunday 2 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": "1977-01-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-02", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Sunday 2 January. Trayodaśī runs from 15:22 on Sun 2 Jan to 17:28 on Mon 3 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-01-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-01-08", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1042, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-01-08T20:46:04+08:00", "utc": "1977-01-08T12:46:04Z", "ms": 221575564184.15466 }, "end": { "local": "1977-01-09T20:13:13+08:00", "utc": "1977-01-09T12:13:13Z", "ms": 221659992794.07562 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-08T20:46:04+08:00", "utc": "1977-01-08T12:46:04Z", "ms": 221575564184.15466 }, "end": { "local": "1977-01-09T20:13:13+08:00", "utc": "1977-01-09T12:13:13Z", "ms": 221659992794.07562 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-01-08", "window": { "start": { "local": "1977-01-08T21:03:26+08:00", "utc": "1977-01-08T13:03:26Z", "ms": 221576606380.92578 }, "end": { "local": "1977-01-08T21:03:26+08:00", "utc": "1977-01-08T13:03:26Z", "ms": 221576606380.92578 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-01-09", "window": { "start": { "local": "1977-01-09T22:01:26+08:00", "utc": "1977-01-09T14:01:26Z", "ms": 221666485839.075 }, "end": { "local": "1977-01-09T22:01:26+08:00", "utc": "1977-01-09T14:01:26Z", "ms": 221666485839.075 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:46 on Sat 8 Jan to 20:13 on Sun 9 Jan.", "fact": "1977-01-08T12:46:04Z → 1977-01-09T12:13:13Z" }, { "step": "kaala", "text": "Moonrise is at 21:03 on the 8th and 22:01 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 8th and is not on the 9th.", "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 1042 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Saturday 8 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": "1977-01-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-08", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Saturday 8 January. Caturthī runs from 20:46 on Sat 8 Jan to 20:13 on Sun 9 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-01-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34961, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 }, "end": { "local": "1977-02-12T17:00:52+08:00", "utc": "1977-02-12T09:00:52Z", "ms": 224586051559.16705 } }, "span": { "of": "transit", "start": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 }, "end": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 } }, "kaala": "sunset-day", "days": [ { "local_date": "1977-01-13", "window": { "start": { "local": "1977-01-12T18:16:33+08:00", "utc": "1977-01-12T10:16:33Z", "ms": 221912192716.3381 }, "end": { "local": "1977-01-13T18:17:20+08:00", "utc": "1977-01-13T10:17:20Z", "ms": 221998640060.5096 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1977-01-14", "window": { "start": { "local": "1977-01-13T18:17:20+08:00", "utc": "1977-01-13T10:17:20Z", "ms": 221998640060.5096 }, "end": { "local": "1977-01-14T18:18:08+08:00", "utc": "1977-01-14T10:18:08Z", "ms": 222085087740.24454 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1977-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 04:00 on Fri 14 Jan.", "fact": "1977-01-13T20:00:01Z · 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 18:17, and the day of the 14th ends at 18:18.", "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 34961 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Friday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Zunyi, 1977: Thursday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "bhogi", "follows": { "festival": "pongal", "days": -1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1977-01-13", "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": "1977-01-12", "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 Zunyi, Bhogi 1977 falls on Thursday 13 January. It is kept the day before Pongal, which falls on Friday 14 January. The Sun enters Makara at 04:00 on Fri 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 12 January.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34961, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 }, "end": { "local": "1977-02-12T17:00:52+08:00", "utc": "1977-02-12T09:00:52Z", "ms": 224586051559.16705 } }, "span": { "of": "transit", "start": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 }, "end": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 } }, "kaala": "sunset-day", "days": [ { "local_date": "1977-01-13", "window": { "start": { "local": "1977-01-12T18:16:33+08:00", "utc": "1977-01-12T10:16:33Z", "ms": 221912192716.3381 }, "end": { "local": "1977-01-13T18:17:20+08:00", "utc": "1977-01-13T10:17:20Z", "ms": 221998640060.5096 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1977-01-14", "window": { "start": { "local": "1977-01-13T18:17:20+08:00", "utc": "1977-01-13T10:17:20Z", "ms": 221998640060.5096 }, "end": { "local": "1977-01-14T18:18:08+08:00", "utc": "1977-01-14T10:18:08Z", "ms": 222085087740.24454 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 04:00 on Fri 14 Jan.", "fact": "1977-01-13T20:00:01Z · 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 18:17, and the day of the 14th ends at 18:18.", "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 34961 s" }, { "step": "ruling", "text": "Pongal, Zunyi, 1977: Friday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "pongal", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.", "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1977-01-14", "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": "1977-01-13", "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 Zunyi, Pongal 1977 falls on Friday 14 January. The Sun enters Makara at 04:00 on Fri 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14401, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 }, "end": { "local": "1977-02-12T17:00:52+08:00", "utc": "1977-02-12T09:00:52Z", "ms": 224586051559.16705 } }, "span": { "of": "transit", "start": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 }, "end": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 } }, "kaala": "civil-day", "days": [ { "local_date": "1977-01-13", "window": { "start": { "local": "1977-01-13T00:00:00+08:00", "utc": "1977-01-12T16:00:00Z", "ms": 221932800000 }, "end": { "local": "1977-01-14T00:00:00+08:00", "utc": "1977-01-13T16:00:00Z", "ms": 222019200000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "1977-01-14", "window": { "start": { "local": "1977-01-14T00:00:00+08:00", "utc": "1977-01-13T16:00:00Z", "ms": 222019200000 }, "end": { "local": "1977-01-15T00:00:00+08:00", "utc": "1977-01-14T16:00:00Z", "ms": 222105600000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 04:00 on Fri 14 Jan.", "fact": "1977-01-13T20:00:01Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Zunyi.", "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 14401 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Zunyi, 1977: Friday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "makara-sankranti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "rashi": "Makara", "day_from": "midnight" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1977-01-13", "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": "1977-01-14", "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 Zunyi, Makara Saṅkrānti 1977 falls on Friday 14 January. The Sun enters Makara at 04:00 on Fri 14 Jan, and the rule counts the day from midnight. Counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34961, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 }, "end": { "local": "1977-02-12T17:00:52+08:00", "utc": "1977-02-12T09:00:52Z", "ms": 224586051559.16705 } }, "span": { "of": "transit", "start": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 }, "end": { "local": "1977-01-14T04:00:01+08:00", "utc": "1977-01-13T20:00:01Z", "ms": 222033601199.6579 } }, "kaala": "sunset-day", "days": [ { "local_date": "1977-01-13", "window": { "start": { "local": "1977-01-12T18:16:33+08:00", "utc": "1977-01-12T10:16:33Z", "ms": 221912192716.3381 }, "end": { "local": "1977-01-13T18:17:20+08:00", "utc": "1977-01-13T10:17:20Z", "ms": 221998640060.5096 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1977-01-14", "window": { "start": { "local": "1977-01-13T18:17:20+08:00", "utc": "1977-01-13T10:17:20Z", "ms": 221998640060.5096 }, "end": { "local": "1977-01-14T18:18:08+08:00", "utc": "1977-01-14T10:18:08Z", "ms": 222085087740.24454 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1977-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 04:00 on Fri 14 Jan.", "fact": "1977-01-13T20:00:01Z · 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 18:17, and the day of the 14th ends at 18:18.", "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 34961 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Friday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Zunyi, 1977: Saturday 15 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "mattu-pongal", "follows": { "festival": "pongal", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1977-01-15", "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": "1977-01-14", "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 Zunyi, Mattu Pongal 1977 falls on Saturday 15 January. It is kept the day after Pongal, which falls on Friday 14 January. The Sun enters Makara at 04:00 on Fri 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-01-16", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1617, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-01-15T10:41:14+08:00", "utc": "1977-01-15T02:41:14Z", "ms": 222144073613.427 }, "end": { "local": "1977-01-16T08:11:34+08:00", "utc": "1977-01-16T00:11:34Z", "ms": 222221494361.4578 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-15T10:41:14+08:00", "utc": "1977-01-15T02:41:14Z", "ms": 222144073613.427 }, "end": { "local": "1977-01-16T08:11:34+08:00", "utc": "1977-01-16T00:11:34Z", "ms": 222221494361.4578 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-01-15", "window": { "start": { "local": "1977-01-15T07:44:43+08:00", "utc": "1977-01-14T23:44:43Z", "ms": 222133483303.18875 }, "end": { "local": "1977-01-15T07:44:43+08:00", "utc": "1977-01-14T23:44:43Z", "ms": 222133483303.18875 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-01-16", "window": { "start": { "local": "1977-01-16T07:44:37+08:00", "utc": "1977-01-15T23:44:37Z", "ms": 222219877458.01666 }, "end": { "local": "1977-01-16T07:44:37+08:00", "utc": "1977-01-15T23:44:37Z", "ms": 222219877458.01666 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:41 on Sat 15 Jan to 08:12 on Sun 16 Jan.", "fact": "1977-01-15T02:41:14Z → 1977-01-16T00:11:34Z" }, { "step": "kaala", "text": "Sunrise is at 07:45 on the 15th and 07:45 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 15th and is on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1617 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Zunyi, 1977: Sunday 16 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": "1977-01-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-16", "confidence": "determinate" } ], "quote": "In Zunyi, Ṣaṭtilā Ekādaśī 1977 falls on Sunday 16 January. Ekādaśī runs from 10:41 on Sat 15 Jan to 08:12 on Sun 16 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-01-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-01-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24532, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-01-17T05:34:30+08:00", "utc": "1977-01-16T21:34:30Z", "ms": 222298470077.00168 }, "end": { "local": "1977-01-18T02:56:35+08:00", "utc": "1977-01-17T18:56:35Z", "ms": 222375394858.75302 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-17T05:34:30+08:00", "utc": "1977-01-16T21:34:30Z", "ms": 222298470077.00168 }, "end": { "local": "1977-01-18T02:56:35+08:00", "utc": "1977-01-17T18:56:35Z", "ms": 222375394858.75302 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-01-16", "window": { "start": { "local": "1977-01-16T18:19:44+08:00", "utc": "1977-01-16T10:19:44Z", "ms": 222257983943.78787 }, "end": { "local": "1977-01-16T20:07:02+08:00", "utc": "1977-01-16T12:07:02Z", "ms": 222264422091.32874 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1977-01-17", "window": { "start": { "local": "1977-01-17T18:20:32+08:00", "utc": "1977-01-17T10:20:32Z", "ms": 222344432384.35562 }, "end": { "local": "1977-01-17T20:07:43+08:00", "utc": "1977-01-17T12:07:43Z", "ms": 222350862877.06442 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:35 on Mon 17 Jan to 02:57 on Tue 18 Jan.", "fact": "1977-01-16T21:34:30Z → 1977-01-17T18:56:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:20–20:07 on the 16th, 18:21–20:08 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 107 minutes on the 16th and 107 of 107 on the 17th.", "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 24532 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Monday 17 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": "1977-01-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-17", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Monday 17 January. Trayodaśī runs from 05:35 on Mon 17 Jan to 02:57 on Tue 18 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-01-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shivaratri?on=1977-01-17", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-17", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 779, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-01-18T02:56:35+08:00", "utc": "1977-01-17T18:56:35Z", "ms": 222375394858.75302 }, "end": { "local": "1977-01-19T00:25:47+08:00", "utc": "1977-01-18T16:25:47Z", "ms": 222452747255.44174 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-18T02:56:35+08:00", "utc": "1977-01-17T18:56:35Z", "ms": 222375394858.75302 }, "end": { "local": "1977-01-19T00:25:47+08:00", "utc": "1977-01-18T16:25:47Z", "ms": 222452747255.44174 } }, "kaala": "nishita", "days": [ { "local_date": "1977-01-17", "window": { "start": { "local": "1977-01-18T00:38:27+08:00", "utc": "1977-01-17T16:38:27Z", "ms": 222367106732.01367 }, "end": { "local": "1977-01-18T01:26:27+08:00", "utc": "1977-01-17T17:26:27Z", "ms": 222369986732.01367 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-01-18", "window": { "start": { "local": "1977-01-19T00:38:46+08:00", "utc": "1977-01-18T16:38:46Z", "ms": 222453525770.57422 }, "end": { "local": "1977-01-19T01:26:46+08:00", "utc": "1977-01-18T17:26:46Z", "ms": 222456405770.57422 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:57 on Tue 18 Jan to 00:26 on Wed 19 Jan.", "fact": "1977-01-17T18:56:35Z → 1977-01-18T16:25:47Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:38–01:26 on the 17th, 00:39–01:27 on the 18th.", "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 17th and 0 of 48 on the 18th.", "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 779 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Monday 17 January.", "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": "1977-01-17", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-17", "confidence": "boundary" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Monday 17 January. Caturdaśī runs from 02:57 on Tue 18 Jan to 00:26 on Wed 19 Jan, and reaches niśītha on neither day.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-01-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10836, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-01-18T02:56:35+08:00", "utc": "1977-01-17T18:56:35Z", "ms": 222375394858.75302 }, "end": { "local": "1977-01-19T00:25:47+08:00", "utc": "1977-01-18T16:25:47Z", "ms": 222452747255.44174 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-18T02:56:35+08:00", "utc": "1977-01-17T18:56:35Z", "ms": 222375394858.75302 }, "end": { "local": "1977-01-19T00:25:47+08:00", "utc": "1977-01-18T16:25:47Z", "ms": 222452747255.44174 } }, "kaala": "arunodaya", "days": [ { "local_date": "1977-01-18", "window": { "start": { "local": "1977-01-18T05:57:11+08:00", "utc": "1977-01-17T21:57:11Z", "ms": 222386230586.96292 }, "end": { "local": "1977-01-18T07:44:21+08:00", "utc": "1977-01-17T23:44:21Z", "ms": 222392661079.67172 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1977-01-19", "window": { "start": { "local": "1977-01-19T05:57:08+08:00", "utc": "1977-01-18T21:57:08Z", "ms": 222472627939.52393 }, "end": { "local": "1977-01-19T07:44:11+08:00", "utc": "1977-01-18T23:44:11Z", "ms": 222479050546.4147 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:57 on Tue 18 Jan to 00:26 on Wed 19 Jan.", "fact": "1977-01-17T18:56:35Z → 1977-01-18T16:25:47Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:57–07:44 on the 18th, 05:57–07:44 on the 19th.", "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 107 of 107 minutes on the 18th and 0 of 107 on the 19th.", "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 10836 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Zunyi, 1977: Tuesday 18 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": "1977-01-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-18", "confidence": "determinate" } ], "quote": "In Zunyi, Yama Tarpaṇa 1977 falls on Tuesday 18 January. Caturdaśī runs from 02:57 on Tue 18 Jan to 00:26 on Wed 19 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-22", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 554, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-01-22T18:33:50+08:00", "utc": "1977-01-22T10:33:50Z", "ms": 222777230193.4653 }, "end": { "local": "1977-01-23T18:47:37+08:00", "utc": "1977-01-23T10:47:37Z", "ms": 222864457415.58847 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-22T18:33:50+08:00", "utc": "1977-01-22T10:33:50Z", "ms": 222777230193.4653 }, "end": { "local": "1977-01-23T18:47:37+08:00", "utc": "1977-01-23T10:47:37Z", "ms": 222864457415.58847 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-01-22", "window": { "start": { "local": "1977-01-22T18:24:36+08:00", "utc": "1977-01-22T10:24:36Z", "ms": 222776676320.41193 }, "end": { "local": "1977-01-22T20:11:05+08:00", "utc": "1977-01-22T12:11:05Z", "ms": 222783065188.49103 } }, "covered_min": 97, "window_min": 106, "qualifies": true }, { "local_date": "1977-01-23", "window": { "start": { "local": "1977-01-23T18:25:25+08:00", "utc": "1977-01-23T10:25:25Z", "ms": 222863125182.94623 }, "end": { "local": "1977-01-23T20:11:45+08:00", "utc": "1977-01-23T12:11:45Z", "ms": 222869505096.1789 } }, "covered_min": 22, "window_min": 106, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:34 on Sat 22 Jan to 18:48 on Sun 23 Jan.", "fact": "1977-01-22T10:33:50Z → 1977-01-23T10:47:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:25–20:11 on the 22nd, 18:25–20:12 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 97 of 106 minutes on the 22nd and 22 of 106 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 554 s" }, { "step": "ruling", "text": "Tila Caturthī, Zunyi, 1977: Saturday 22 January.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-01-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-22", "confidence": "boundary" } ], "quote": "In Zunyi, Tila Caturthī 1977 falls on Saturday 22 January. Caturthī runs from 18:34 on Sat 22 Jan to 18:48 on Sun 23 Jan and covers 97 of 106 minutes of pradoṣa that evening. It also reaches the next evening for 22 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/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18347, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-01-22T18:33:50+08:00", "utc": "1977-01-22T10:33:50Z", "ms": 222777230193.4653 }, "end": { "local": "1977-01-23T18:47:37+08:00", "utc": "1977-01-23T10:47:37Z", "ms": 222864457415.58847 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-22T18:33:50+08:00", "utc": "1977-01-22T10:33:50Z", "ms": 222777230193.4653 }, "end": { "local": "1977-01-23T18:47:37+08:00", "utc": "1977-01-23T10:47:37Z", "ms": 222864457415.58847 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-01-22", "window": { "start": { "local": "1977-01-22T12:40:03+08:00", "utc": "1977-01-22T04:40:03Z", "ms": 222756002954.65985 }, "end": { "local": "1977-01-22T13:28:03+08:00", "utc": "1977-01-22T05:28:03Z", "ms": 222758882954.65985 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-01-23", "window": { "start": { "local": "1977-01-23T12:40:19+08:00", "utc": "1977-01-23T04:40:19Z", "ms": 222842419006.9757 }, "end": { "local": "1977-01-23T13:28:19+08:00", "utc": "1977-01-23T05:28:19Z", "ms": 222845299006.9757 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:34 on Sat 22 Jan to 18:48 on Sun 23 Jan.", "fact": "1977-01-22T10:33:50Z → 1977-01-23T10:47:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 22nd, 12:40–13:28 on the 23rd.", "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 22nd and 48 of 48 on the 23rd.", "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 18347 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Zunyi, 1977: Sunday 23 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-23", "confidence": "determinate" } ], "quote": "In Zunyi, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1977 falls on Sunday 23 January. Caturthī runs from 18:34 on Sat 22 Jan to 18:48 on Sun 23 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19158, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1977-01-23T18:47:37+08:00", "utc": "1977-01-23T10:47:37Z", "ms": 222864457415.58847 }, "end": { "local": "1977-01-24T19:49:09+08:00", "utc": "1977-01-24T11:49:09Z", "ms": 222954548830.8839 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-23T18:47:37+08:00", "utc": "1977-01-23T10:47:37Z", "ms": 222864457415.58847 }, "end": { "local": "1977-01-24T19:49:09+08:00", "utc": "1977-01-24T11:49:09Z", "ms": 222954548830.8839 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-01-23", "window": { "start": { "local": "1977-01-23T12:40:19+08:00", "utc": "1977-01-23T04:40:19Z", "ms": 222842419006.9757 }, "end": { "local": "1977-01-23T13:28:19+08:00", "utc": "1977-01-23T05:28:19Z", "ms": 222845299006.9757 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-01-24", "window": { "start": { "local": "1977-01-24T12:40:34+08:00", "utc": "1977-01-24T04:40:34Z", "ms": 222928834260.46185 }, "end": { "local": "1977-01-24T13:28:34+08:00", "utc": "1977-01-24T05:28:34Z", "ms": 222931714260.46185 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 18:48 on Sun 23 Jan to 19:49 on Mon 24 Jan.", "fact": "1977-01-23T10:47:37Z → 1977-01-24T11:49:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 23rd, 12:41–13:29 on the 24th.", "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 23rd and 48 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 19158 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Zunyi, 1977: Monday 24 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-24", "confidence": "determinate" } ], "quote": "In Zunyi, Śrī Pañcamī 1977 falls on Monday 24 January. Pañcamī runs from 18:48 on Sun 23 Jan to 19:49 on Mon 24 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19158, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1977-01-23T18:47:37+08:00", "utc": "1977-01-23T10:47:37Z", "ms": 222864457415.58847 }, "end": { "local": "1977-01-24T19:49:09+08:00", "utc": "1977-01-24T11:49:09Z", "ms": 222954548830.8839 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-23T18:47:37+08:00", "utc": "1977-01-23T10:47:37Z", "ms": 222864457415.58847 }, "end": { "local": "1977-01-24T19:49:09+08:00", "utc": "1977-01-24T11:49:09Z", "ms": 222954548830.8839 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-01-23", "window": { "start": { "local": "1977-01-23T12:40:19+08:00", "utc": "1977-01-23T04:40:19Z", "ms": 222842419006.9757 }, "end": { "local": "1977-01-23T13:28:19+08:00", "utc": "1977-01-23T05:28:19Z", "ms": 222845299006.9757 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-01-24", "window": { "start": { "local": "1977-01-24T12:40:34+08:00", "utc": "1977-01-24T04:40:34Z", "ms": 222928834260.46185 }, "end": { "local": "1977-01-24T13:28:34+08:00", "utc": "1977-01-24T05:28:34Z", "ms": 222931714260.46185 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 18:48 on Sun 23 Jan to 19:49 on Mon 24 Jan.", "fact": "1977-01-23T10:47:37Z → 1977-01-24T11:49:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 23rd, 12:41–13:29 on the 24th.", "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 23rd and 48 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: unstated → only-day · margin 19158 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Zunyi, 1977: Monday 24 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-24", "confidence": "determinate" } ], "quote": "In Zunyi, Vasanta Pañcamī 1977 falls on Monday 24 January. Pañcamī runs from 18:48 on Sun 23 Jan to 19:49 on Mon 24 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21754, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1977-01-25T21:34:16+08:00", "utc": "1977-01-25T13:34:16Z", "ms": 223047255983.34253 }, "end": { "local": "1977-01-26T23:53:24+08:00", "utc": "1977-01-26T15:53:24Z", "ms": 223142004248.7092 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-25T21:34:16+08:00", "utc": "1977-01-25T13:34:16Z", "ms": 223047255983.34253 }, "end": { "local": "1977-01-26T23:53:24+08:00", "utc": "1977-01-26T15:53:24Z", "ms": 223142004248.7092 } }, "kaala": "arunodaya", "days": [ { "local_date": "1977-01-26", "window": { "start": { "local": "1977-01-26T05:56:12+08:00", "utc": "1977-01-25T21:56:12Z", "ms": 223077371934.38092 }, "end": { "local": "1977-01-26T07:42:13+08:00", "utc": "1977-01-25T23:42:13Z", "ms": 223083733354.0288 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1977-01-27", "window": { "start": { "local": "1977-01-27T05:55:59+08:00", "utc": "1977-01-26T21:55:59Z", "ms": 223163758607.88455 }, "end": { "local": "1977-01-27T07:41:51+08:00", "utc": "1977-01-26T23:41:51Z", "ms": 223170110500.24237 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 21:34 on Tue 25 Jan to 23:53 on Wed 26 Jan.", "fact": "1977-01-25T13:34:16Z → 1977-01-26T15:53:24Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:56–07:42 on the 26th, 05:56–07:42 on the 27th.", "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 106 of 106 minutes on the 26th and 0 of 106 on the 27th.", "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 21754 s" }, { "step": "ruling", "text": "Ratha Saptamī, Zunyi, 1977: Wednesday 26 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-26", "confidence": "determinate" } ], "quote": "In Zunyi, Ratha Saptamī 1977 falls on Wednesday 26 January. Saptamī runs from 21:34 on Tue 25 Jan to 23:53 on Wed 26 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-01-31", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-31", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 192, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-01-30T07:43:45+08:00", "utc": "1977-01-29T23:43:45Z", "ms": 223429425499.06815 }, "end": { "local": "1977-01-31T09:46:45+08:00", "utc": "1977-01-31T01:46:45Z", "ms": 223523204503.54352 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-30T07:43:45+08:00", "utc": "1977-01-29T23:43:45Z", "ms": 223429425499.06815 }, "end": { "local": "1977-01-31T09:46:45+08:00", "utc": "1977-01-31T01:46:45Z", "ms": 223523204503.54352 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-01-30", "window": { "start": { "local": "1977-01-30T07:40:33+08:00", "utc": "1977-01-29T23:40:33Z", "ms": 223429233065.8249 }, "end": { "local": "1977-01-30T07:40:33+08:00", "utc": "1977-01-29T23:40:33Z", "ms": 223429233065.8249 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-01-31", "window": { "start": { "local": "1977-01-31T07:40:04+08:00", "utc": "1977-01-30T23:40:04Z", "ms": 223515604356.255 }, "end": { "local": "1977-01-31T07:40:04+08:00", "utc": "1977-01-30T23:40:04Z", "ms": 223515604356.255 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:44 on Sun 30 Jan to 09:47 on Mon 31 Jan.", "fact": "1977-01-29T23:43:45Z → 1977-01-31T01:46:45Z" }, { "step": "kaala", "text": "Sunrise is at 07:41 on the 30th and 07:40 on the 31st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 30th and is on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 192 s < 300 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Zunyi, 1977: Monday 31 January.", "fact": "confidence: boundary (margin)" } ], "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": "1977-01-31", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-31", "confidence": "boundary" } ], "quote": "In Zunyi, Jayā Ekādaśī 1977 falls on Monday 31 January. Ekādaśī runs from 07:44 on Sun 30 Jan to 09:47 on Mon 31 Jan and is current at sunrise that day. It is 3 min 12 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-01-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5225, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1977-01-31T09:46:45+08:00", "utc": "1977-01-31T01:46:45Z", "ms": 223523204503.54352 }, "end": { "local": "1977-02-01T11:15:01+08:00", "utc": "1977-02-01T03:15:01Z", "ms": 223614901476.97806 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-01-31T09:46:45+08:00", "utc": "1977-01-31T01:46:45Z", "ms": 223523204503.54352 }, "end": { "local": "1977-02-01T11:15:01+08:00", "utc": "1977-02-01T03:15:01Z", "ms": 223614901476.97806 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-01-31", "window": { "start": { "local": "1977-01-31T12:41:58+08:00", "utc": "1977-01-31T04:41:58Z", "ms": 223533718008.2296 }, "end": { "local": "1977-01-31T13:29:58+08:00", "utc": "1977-01-31T05:29:58Z", "ms": 223536598008.2296 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-02-01", "window": { "start": { "local": "1977-02-01T12:42:07+08:00", "utc": "1977-02-01T04:42:07Z", "ms": 223620126638.339 }, "end": { "local": "1977-02-01T13:30:07+08:00", "utc": "1977-02-01T05:30:07Z", "ms": 223623006638.339 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 09:47 on Mon 31 Jan to 11:15 on Tue 1 Feb.", "fact": "1977-01-31T01:46:45Z → 1977-02-01T03:15:01Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 31st, 12:42–13:30 on the 1st.", "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 31st and 0 of 48 on the 1st.", "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 5225 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Zunyi, 1977: Monday 31 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhishma-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-01-31", "confidence": "determinate" } ], "quote": "In Zunyi, Bhīṣma Dvādaśī 1977 falls on Monday 31 January. Dvādaśī runs from 09:47 on Mon 31 Jan to 11:15 on Tue 1 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/pradosha-vrata?on=1977-02-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-02-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23302, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-02-01T11:15:01+08:00", "utc": "1977-02-01T03:15:01Z", "ms": 223614901476.97806 }, "end": { "local": "1977-02-02T12:05:04+08:00", "utc": "1977-02-02T04:05:04Z", "ms": 223704303674.3081 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-02-01T11:15:01+08:00", "utc": "1977-02-01T03:15:01Z", "ms": 223614901476.97806 }, "end": { "local": "1977-02-02T12:05:04+08:00", "utc": "1977-02-02T04:05:04Z", "ms": 223704303674.3081 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-02-01", "window": { "start": { "local": "1977-02-01T18:32:39+08:00", "utc": "1977-02-01T10:32:39Z", "ms": 223641159046.07492 }, "end": { "local": "1977-02-01T20:17:30+08:00", "utc": "1977-02-01T12:17:30Z", "ms": 223647450201.34314 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "1977-02-02", "window": { "start": { "local": "1977-02-02T18:33:26+08:00", "utc": "1977-02-02T10:33:26Z", "ms": 223727606160.86026 }, "end": { "local": "1977-02-02T20:18:07+08:00", "utc": "1977-02-02T12:18:07Z", "ms": 223733886648.58945 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:15 on Tue 1 Feb to 12:05 on Wed 2 Feb.", "fact": "1977-02-01T03:15:01Z → 1977-02-02T04:05:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:33–20:18 on the 1st, 18:33–20:18 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 105 of 105 minutes on the 1st and 0 of 105 on the 2nd.", "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 23302 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Tuesday 1 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": "1977-02-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-02-01", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Tuesday 1 February. Trayodaśī runs from 11:15 on Tue 1 Feb to 12:05 on Wed 2 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-02-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-02-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1488, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-02-03T12:17:33+08:00", "utc": "1977-02-03T04:17:33Z", "ms": 223791453302.38055 }, "end": { "local": "1977-02-04T11:56:14+08:00", "utc": "1977-02-04T03:56:14Z", "ms": 223876574120.88574 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1977-02-03T12:17:33+08:00", "utc": "1977-02-03T04:17:33Z", "ms": 223791453302.38055 }, "end": { "local": "1977-02-04T11:56:14+08:00", "utc": "1977-02-04T03:56:14Z", "ms": 223876574120.88574 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-02-03", "window": { "start": { "local": "1977-02-03T12:42:21+08:00", "utc": "1977-02-03T04:42:21Z", "ms": 223792941404.37653 }, "end": { "local": "1977-02-03T13:30:21+08:00", "utc": "1977-02-03T05:30:21Z", "ms": 223795821404.37653 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-02-04", "window": { "start": { "local": "1977-02-04T12:42:28+08:00", "utc": "1977-02-04T04:42:28Z", "ms": 223879347549.88165 }, "end": { "local": "1977-02-04T13:30:28+08:00", "utc": "1977-02-04T05:30:28Z", "ms": 223882227549.88165 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 12:18 on Thu 3 Feb to 11:56 on Fri 4 Feb.", "fact": "1977-02-03T04:17:33Z → 1977-02-04T03:56:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 3rd, 12:42–13:30 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1488 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Zunyi, 1977: Thursday 3 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": "1977-02-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-02-03", "confidence": "boundary" } ], "quote": "In Zunyi, Māghī Pūrṇimā 1977 falls on Thursday 3 February. Pūrṇimā runs from 12:18 on Thu 3 Feb to 11:56 on Fri 4 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-02-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31937, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-02-07T08:25:59+08:00", "utc": "1977-02-07T00:25:59Z", "ms": 224123159256.4525 }, "end": { "local": "1977-02-08T06:45:45+08:00", "utc": "1977-02-07T22:45:45Z", "ms": 224203545253.49942 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1977-02-07T08:25:59+08:00", "utc": "1977-02-07T00:25:59Z", "ms": 224123159256.4525 }, "end": { "local": "1977-02-08T06:45:45+08:00", "utc": "1977-02-07T22:45:45Z", "ms": 224203545253.49942 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-02-06", "window": { "start": { "local": "1977-02-06T20:52:54+08:00", "utc": "1977-02-06T12:52:54Z", "ms": 224081574440.98956 }, "end": { "local": "1977-02-06T20:52:54+08:00", "utc": "1977-02-06T12:52:54Z", "ms": 224081574440.98956 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-02-07", "window": { "start": { "local": "1977-02-07T21:53:28+08:00", "utc": "1977-02-07T13:53:28Z", "ms": 224171608374.50772 }, "end": { "local": "1977-02-07T21:53:28+08:00", "utc": "1977-02-07T13:53:28Z", "ms": 224171608374.50772 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:26 on Mon 7 Feb to 06:46 on Tue 8 Feb.", "fact": "1977-02-07T00:25:59Z → 1977-02-07T22:45:45Z" }, { "step": "kaala", "text": "Moonrise is at 20:53 on the 6th and 21:53 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 6th and is on the 7th.", "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 31937 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Monday 7 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": "1977-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-02-07", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Monday 7 February. Caturthī runs from 08:26 on Mon 7 Feb to 06:46 on Tue 8 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-02-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ekadashi?on=1977-02-14", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-02-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34663, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-02-13T19:05:35+08:00", "utc": "1977-02-13T11:05:35Z", "ms": 224679935192.63223 }, "end": { "local": "1977-02-14T17:08:47+08:00", "utc": "1977-02-14T09:08:47Z", "ms": 224759327323.1118 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1977-02-13T19:05:35+08:00", "utc": "1977-02-13T11:05:35Z", "ms": 224679935192.63223 }, "end": { "local": "1977-02-14T17:08:47+08:00", "utc": "1977-02-14T09:08:47Z", "ms": 224759327323.1118 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-02-13", "window": { "start": { "local": "1977-02-13T07:31:51+08:00", "utc": "1977-02-12T23:31:51Z", "ms": 224638311031.703 }, "end": { "local": "1977-02-13T07:31:51+08:00", "utc": "1977-02-12T23:31:51Z", "ms": 224638311031.703 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-02-14", "window": { "start": { "local": "1977-02-14T07:31:05+08:00", "utc": "1977-02-13T23:31:05Z", "ms": 224724664744.9129 }, "end": { "local": "1977-02-14T07:31:05+08:00", "utc": "1977-02-13T23:31:05Z", "ms": 224724664744.9129 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:06 on Sun 13 Feb to 17:09 on Mon 14 Feb.", "fact": "1977-02-13T11:05:35Z → 1977-02-14T09:08:47Z" }, { "step": "kaala", "text": "Sunrise is at 07:32 on the 13th and 07:31 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 13th and is on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34663 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Zunyi, 1977: Monday 14 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": "1977-02-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-02-14", "confidence": "determinate" } ], "quote": "In Zunyi, Vijayā Ekādaśī 1977 falls on Monday 14 February. Ekādaśī runs from 19:06 on Sun 13 Feb to 17:09 on Mon 14 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-02-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-02-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12203, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-02-15T15:19:46+08:00", "utc": "1977-02-15T07:19:46Z", "ms": 224839186082.52194 }, "end": { "local": "1977-02-16T13:43:53+08:00", "utc": "1977-02-16T05:43:53Z", "ms": 224919832933.79694 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1977-02-15T15:19:46+08:00", "utc": "1977-02-15T07:19:46Z", "ms": 224839186082.52194 }, "end": { "local": "1977-02-16T13:43:53+08:00", "utc": "1977-02-16T05:43:53Z", "ms": 224919832933.79694 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-02-15", "window": { "start": { "local": "1977-02-15T18:43:09+08:00", "utc": "1977-02-15T10:43:09Z", "ms": 224851389230.45554 }, "end": { "local": "1977-02-15T20:25:20+08:00", "utc": "1977-02-15T12:25:20Z", "ms": 224857519867.26117 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1977-02-16", "window": { "start": { "local": "1977-02-16T18:43:52+08:00", "utc": "1977-02-16T10:43:52Z", "ms": 224937831542.73898 }, "end": { "local": "1977-02-16T20:25:50+08:00", "utc": "1977-02-16T12:25:50Z", "ms": 224943949950.6384 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:20 on Tue 15 Feb to 13:44 on Wed 16 Feb.", "fact": "1977-02-15T07:19:46Z → 1977-02-16T05:43:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:25 on the 15th, 18:44–20:26 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 15th and 0 of 102 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12203 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Tuesday 15 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": "1977-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-02-15", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Tuesday 15 February. Trayodaśī runs from 15:20 on Tue 15 Feb to 13:44 on Wed 16 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-02-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39427, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-02-16T13:43:53+08:00", "utc": "1977-02-16T05:43:53Z", "ms": 224919832933.79694 }, "end": { "local": "1977-02-17T12:27:23+08:00", "utc": "1977-02-17T04:27:23Z", "ms": 225001642573.22174 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1977-02-16T13:43:53+08:00", "utc": "1977-02-16T05:43:53Z", "ms": 224919832933.79694 }, "end": { "local": "1977-02-17T12:27:23+08:00", "utc": "1977-02-17T04:27:23Z", "ms": 225001642573.22174 } }, "kaala": "nishita", "days": [ { "local_date": "1977-02-15", "window": { "start": { "local": "1977-02-16T00:42:19+08:00", "utc": "1977-02-15T16:42:19Z", "ms": 224872939118.47662 }, "end": { "local": "1977-02-16T01:30:19+08:00", "utc": "1977-02-15T17:30:19Z", "ms": 224875819118.47662 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-02-16", "window": { "start": { "local": "1977-02-17T00:42:16+08:00", "utc": "1977-02-16T16:42:16Z", "ms": 224959335572.36182 }, "end": { "local": "1977-02-17T01:30:16+08:00", "utc": "1977-02-16T17:30:16Z", "ms": 224962215572.36182 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:44 on Wed 16 Feb to 12:27 on Thu 17 Feb.", "fact": "1977-02-16T05:43:53Z → 1977-02-17T04:27:23Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:42–01:30 on the 15th, 00:42–01:30 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 39427 s" }, { "step": "ruling", "text": "Mahāśivarātri, Zunyi, 1977: Wednesday 16 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": "1977-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-02-16", "confidence": "determinate" } ], "quote": "In Zunyi, Mahāśivarātri 1977 falls on Wednesday 16 February. Caturdaśī runs from 13:44 on Wed 16 Feb to 12:27 on Thu 17 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-02-21", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-02-21", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 392, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-02-21T12:35:43+08:00", "utc": "1977-02-21T04:35:43Z", "ms": 225347742944.3573 }, "end": { "local": "1977-02-22T14:12:20+08:00", "utc": "1977-02-22T06:12:20Z", "ms": 225439940260.23523 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1977-02-21T12:35:43+08:00", "utc": "1977-02-21T04:35:43Z", "ms": 225347742944.3573 }, "end": { "local": "1977-02-22T14:12:20+08:00", "utc": "1977-02-22T06:12:20Z", "ms": 225439940260.23523 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-02-21", "window": { "start": { "local": "1977-02-21T12:42:15+08:00", "utc": "1977-02-21T04:42:15Z", "ms": 225348134640.8875 }, "end": { "local": "1977-02-21T13:30:15+08:00", "utc": "1977-02-21T05:30:15Z", "ms": 225351014640.8875 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-02-22", "window": { "start": { "local": "1977-02-22T12:42:07+08:00", "utc": "1977-02-22T04:42:07Z", "ms": 225434527496.75018 }, "end": { "local": "1977-02-22T13:30:07+08:00", "utc": "1977-02-22T05:30:07Z", "ms": 225437407496.75018 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:36 on Mon 21 Feb to 14:12 on Tue 22 Feb.", "fact": "1977-02-21T04:35:43Z → 1977-02-22T06:12:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 21st, 12:42–13:30 on the 22nd.", "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 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 392 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1977: Monday 21 February.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-02-21", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-02-22", "confidence": "boundary" } ], "quote": "In Zunyi, Vināyaka Caturthī 1977 falls on Monday 21 February. Caturthī runs from 12:36 on Mon 21 Feb to 14:12 on Tue 22 Feb and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-02-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ekadashi?on=1977-03-01", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9511, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-03-01T03:46:16+08:00", "utc": "1977-02-28T19:46:16Z", "ms": 226007175618.20532 }, "end": { "local": "1977-03-02T04:38:05+08:00", "utc": "1977-03-01T20:38:05Z", "ms": 226096685123.52554 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1977-03-01T03:46:16+08:00", "utc": "1977-02-28T19:46:16Z", "ms": 226007175618.20532 }, "end": { "local": "1977-03-02T04:38:05+08:00", "utc": "1977-03-01T20:38:05Z", "ms": 226096685123.52554 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-03-01", "window": { "start": { "local": "1977-03-01T07:17:36+08:00", "utc": "1977-02-28T23:17:36Z", "ms": 226019856393.14542 }, "end": { "local": "1977-03-01T07:17:36+08:00", "utc": "1977-02-28T23:17:36Z", "ms": 226019856393.14542 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-03-02", "window": { "start": { "local": "1977-03-02T07:16:36+08:00", "utc": "1977-03-01T23:16:36Z", "ms": 226106196064.38177 }, "end": { "local": "1977-03-02T07:16:36+08:00", "utc": "1977-03-01T23:16:36Z", "ms": 226106196064.38177 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:46 on Tue 1 Mar to 04:38 on Wed 2 Mar.", "fact": "1977-02-28T19:46:16Z → 1977-03-01T20:38:05Z" }, { "step": "kaala", "text": "Sunrise is at 07:18 on the 1st and 07:17 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9511 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Zunyi, 1977: Tuesday 1 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": "1977-03-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-01", "confidence": "determinate" } ], "quote": "In Zunyi, Āmalakī Ekādaśī 1977 falls on Tuesday 1 March. Ekādaśī runs from 03:46 on Tue 1 Mar to 04:38 on Wed 2 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-03-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-03-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27471, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-03-03T04:45:30+08:00", "utc": "1977-03-02T20:45:30Z", "ms": 226183529552.43677 }, "end": { "local": "1977-03-04T04:10:16+08:00", "utc": "1977-03-03T20:10:16Z", "ms": 226267815923.28116 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1977-03-03T04:45:30+08:00", "utc": "1977-03-02T20:45:30Z", "ms": 226183529552.43677 }, "end": { "local": "1977-03-04T04:10:16+08:00", "utc": "1977-03-03T20:10:16Z", "ms": 226267815923.28116 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-03-02", "window": { "start": { "local": "1977-03-02T18:53:01+08:00", "utc": "1977-03-02T10:53:01Z", "ms": 226147980845.71835 }, "end": { "local": "1977-03-02T20:32:01+08:00", "utc": "1977-03-02T12:32:01Z", "ms": 226153921411.5452 } }, "covered_min": 0, "window_min": 99, "qualifies": false }, { "local_date": "1977-03-03", "window": { "start": { "local": "1977-03-03T18:53:37+08:00", "utc": "1977-03-03T10:53:37Z", "ms": 226234417104.71274 }, "end": { "local": "1977-03-03T20:32:25+08:00", "utc": "1977-03-03T12:32:25Z", "ms": 226240344623.88956 } }, "covered_min": 99, "window_min": 99, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:45 on Thu 3 Mar to 04:10 on Fri 4 Mar.", "fact": "1977-03-02T20:45:30Z → 1977-03-03T20:10:16Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:53–20:32 on the 2nd, 18:54–20:32 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 99 minutes on the 2nd and 99 of 99 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27471 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Thursday 3 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": "1977-03-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-03", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Thursday 3 March. Trayodaśī runs from 04:45 on Thu 3 Mar to 04:10 on Fri 4 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-03-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22704, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-03-05T02:57:15+08:00", "utc": "1977-03-04T18:57:15Z", "ms": 226349835281.93857 }, "end": { "local": "1977-03-06T01:13:12+08:00", "utc": "1977-03-05T17:13:12Z", "ms": 226429992180.77014 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1977-03-05T02:57:15+08:00", "utc": "1977-03-04T18:57:15Z", "ms": 226349835281.93857 }, "end": { "local": "1977-03-06T01:13:12+08:00", "utc": "1977-03-05T17:13:12Z", "ms": 226429992180.77014 } }, "kaala": "sayahna", "days": [ { "local_date": "1977-03-04", "window": { "start": { "local": "1977-03-04T16:34:17+08:00", "utc": "1977-03-04T08:34:17Z", "ms": 226312457107.1503 }, "end": { "local": "1977-03-04T18:54:13+08:00", "utc": "1977-03-04T10:54:13Z", "ms": 226320853009.30313 } }, "covered_min": 0, "window_min": 140, "qualifies": false }, { "local_date": "1977-03-05", "window": { "start": { "local": "1977-03-05T16:34:33+08:00", "utc": "1977-03-05T08:34:33Z", "ms": 226398873123.0954 }, "end": { "local": "1977-03-05T18:54:49+08:00", "utc": "1977-03-05T10:54:49Z", "ms": 226407288573.20505 } }, "covered_min": 140, "window_min": 140, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 02:57 on Sat 5 Mar to 01:13 on Sun 6 Mar.", "fact": "1977-03-04T18:57:15Z → 1977-03-05T17:13:12Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:34–18:54 on the 4th, 16:35–18:55 on the 5th.", "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 140 minutes on the 4th and 140 of 140 on the 5th.", "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 22704 s" }, { "step": "ruling", "text": "Holikā Dahana, Zunyi, 1977: Saturday 5 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": "1977-03-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-05", "confidence": "determinate" } ], "quote": "In Zunyi, Holikā Dahana 1977 falls on Saturday 5 March. Pūrṇimā runs from 02:57 on Sat 5 Mar to 01:13 on Sun 6 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22704, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-03-05T02:57:15+08:00", "utc": "1977-03-04T18:57:15Z", "ms": 226349835281.93857 }, "end": { "local": "1977-03-06T01:13:12+08:00", "utc": "1977-03-05T17:13:12Z", "ms": 226429992180.77014 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1977-03-05T02:57:15+08:00", "utc": "1977-03-04T18:57:15Z", "ms": 226349835281.93857 }, "end": { "local": "1977-03-06T01:13:12+08:00", "utc": "1977-03-05T17:13:12Z", "ms": 226429992180.77014 } }, "kaala": "sayahna", "days": [ { "local_date": "1977-03-04", "window": { "start": { "local": "1977-03-04T16:34:17+08:00", "utc": "1977-03-04T08:34:17Z", "ms": 226312457107.1503 }, "end": { "local": "1977-03-04T18:54:13+08:00", "utc": "1977-03-04T10:54:13Z", "ms": 226320853009.30313 } }, "covered_min": 0, "window_min": 140, "qualifies": false }, { "local_date": "1977-03-05", "window": { "start": { "local": "1977-03-05T16:34:33+08:00", "utc": "1977-03-05T08:34:33Z", "ms": 226398873123.0954 }, "end": { "local": "1977-03-05T18:54:49+08:00", "utc": "1977-03-05T10:54:49Z", "ms": 226407288573.20505 } }, "covered_min": 140, "window_min": 140, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1977-03-05", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 02:57 on Sat 5 Mar to 01:13 on Sun 6 Mar.", "fact": "1977-03-04T18:57:15Z → 1977-03-05T17:13:12Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:34–18:54 on the 4th, 16:35–18:55 on the 5th.", "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 140 minutes on the 4th and 140 of 140 on the 5th.", "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 22704 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Saturday 5 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Zunyi, 1977: Sunday 6 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": "1977-03-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-06", "confidence": "determinate" } ], "quote": "In Zunyi, Holī 1977 falls on Sunday 6 March. It is kept the day after Holikā Dahana, which falls on Saturday 5 March. Pūrṇimā runs from 02:57 on Sat 5 Mar to 01:13 on Sun 6 Mar and covers all of sāyāhna on the 5th.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21556, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1977-03-06T01:13:12+08:00", "utc": "1977-03-05T17:13:12Z", "ms": 226429992180.77014 }, "end": { "local": "1977-03-06T23:05:44+08:00", "utc": "1977-03-06T15:05:44Z", "ms": 226508743920.53485 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-06T01:13:12+08:00", "utc": "1977-03-05T17:13:12Z", "ms": 226429992180.77014 }, "end": { "local": "1977-03-06T23:05:44+08:00", "utc": "1977-03-06T15:05:44Z", "ms": 226508743920.53485 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-03-06", "window": { "start": { "local": "1977-03-06T07:12:29+08:00", "utc": "1977-03-05T23:12:29Z", "ms": 226451548593.1222 }, "end": { "local": "1977-03-06T07:12:29+08:00", "utc": "1977-03-05T23:12:29Z", "ms": 226451548593.1222 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-03-07", "window": { "start": { "local": "1977-03-07T07:11:25+08:00", "utc": "1977-03-06T23:11:25Z", "ms": 226537885341.6499 }, "end": { "local": "1977-03-07T07:11:25+08:00", "utc": "1977-03-06T23:11:25Z", "ms": 226537885341.6499 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 01:13 on Sun 6 Mar to 23:06 on Sun 6 Mar.", "fact": "1977-03-05T17:13:12Z → 1977-03-06T15:05:44Z" }, { "step": "kaala", "text": "Sunrise is at 07:12 on the 6th and 07:11 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is on the 6th and is not on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21556 s" }, { "step": "ruling", "text": "Vasantotsava, Zunyi, 1977: Sunday 6 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasantotsava", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "sunrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-03-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-06", "confidence": "determinate" } ], "quote": "In Zunyi, Vasantotsava 1977 falls on Sunday 6 March. Pratipadā runs from 01:13 on Sun 6 Mar to 23:06 on Sun 6 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-03-08", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12972, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-03-08T18:10:59+08:00", "utc": "1977-03-08T10:10:59Z", "ms": 226663859016.51523 }, "end": { "local": "1977-03-09T15:37:28+08:00", "utc": "1977-03-09T07:37:28Z", "ms": 226741047543.61108 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-08T18:10:59+08:00", "utc": "1977-03-08T10:10:59Z", "ms": 226663859016.51523 }, "end": { "local": "1977-03-09T15:37:28+08:00", "utc": "1977-03-09T07:37:28Z", "ms": 226741047543.61108 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-03-08", "window": { "start": { "local": "1977-03-08T21:47:11+08:00", "utc": "1977-03-08T13:47:11Z", "ms": 226676831265.06772 }, "end": { "local": "1977-03-08T21:47:11+08:00", "utc": "1977-03-08T13:47:11Z", "ms": 226676831265.06772 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-03-09", "window": { "start": { "local": "1977-03-09T22:51:23+08:00", "utc": "1977-03-09T14:51:23Z", "ms": 226767082573.78137 }, "end": { "local": "1977-03-09T22:51:23+08:00", "utc": "1977-03-09T14:51:23Z", "ms": 226767082573.78137 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:11 on Tue 8 Mar to 15:37 on Wed 9 Mar.", "fact": "1977-03-08T10:10:59Z → 1977-03-09T07:37:28Z" }, { "step": "kaala", "text": "Moonrise is at 21:47 on the 8th and 22:51 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 8th and is not on the 9th.", "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 12972 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Tuesday 8 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": "1977-03-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-08", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Tuesday 8 March. Caturthī runs from 18:11 on Tue 8 Mar to 15:37 on Wed 9 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-03-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14619, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1977-03-12T08:34:46+08:00", "utc": "1977-03-12T00:34:46Z", "ms": 226974886361.74762 }, "end": { "local": "1977-03-13T06:38:10+08:00", "utc": "1977-03-12T22:38:10Z", "ms": 227054289721.91928 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-12T08:34:46+08:00", "utc": "1977-03-12T00:34:46Z", "ms": 226974886361.74762 }, "end": { "local": "1977-03-13T06:38:10+08:00", "utc": "1977-03-12T22:38:10Z", "ms": 227054289721.91928 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-03-12", "window": { "start": { "local": "1977-03-12T12:38:26+08:00", "utc": "1977-03-12T04:38:26Z", "ms": 226989505831.85464 }, "end": { "local": "1977-03-12T13:26:26+08:00", "utc": "1977-03-12T05:26:26Z", "ms": 226992385831.85464 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-03-13", "window": { "start": { "local": "1977-03-13T12:38:10+08:00", "utc": "1977-03-13T04:38:10Z", "ms": 227075889667.90915 }, "end": { "local": "1977-03-13T13:26:10+08:00", "utc": "1977-03-13T05:26:10Z", "ms": 227078769667.90915 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 08:35 on Sat 12 Mar to 06:38 on Sun 13 Mar.", "fact": "1977-03-12T00:34:46Z → 1977-03-12T22:38:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 12th, 12:38–13:26 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 14619 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Zunyi, 1977: Saturday 12 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": "1977-03-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-12", "confidence": "determinate" } ], "quote": "In Zunyi, Śītalāṣṭamī 1977 falls on Saturday 12 March. Aṣṭamī runs from 08:35 on Sat 12 Mar to 06:38 on Sun 13 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-03-15", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12439, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-03-15T03:35:26+08:00", "utc": "1977-03-14T19:35:26Z", "ms": 227216125749.91647 }, "end": { "local": "1977-03-16T02:33:15+08:00", "utc": "1977-03-15T18:33:15Z", "ms": 227298795380.51233 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-15T03:35:26+08:00", "utc": "1977-03-14T19:35:26Z", "ms": 227216125749.91647 }, "end": { "local": "1977-03-16T02:33:15+08:00", "utc": "1977-03-15T18:33:15Z", "ms": 227298795380.51233 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-03-15", "window": { "start": { "local": "1977-03-15T07:02:44+08:00", "utc": "1977-03-14T23:02:44Z", "ms": 227228564298.6327 }, "end": { "local": "1977-03-15T07:02:44+08:00", "utc": "1977-03-14T23:02:44Z", "ms": 227228564298.6327 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-03-16", "window": { "start": { "local": "1977-03-16T07:01:38+08:00", "utc": "1977-03-15T23:01:38Z", "ms": 227314897732.7154 }, "end": { "local": "1977-03-16T07:01:38+08:00", "utc": "1977-03-15T23:01:38Z", "ms": 227314897732.7154 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:35 on Tue 15 Mar to 02:33 on Wed 16 Mar.", "fact": "1977-03-14T19:35:26Z → 1977-03-15T18:33:15Z" }, { "step": "kaala", "text": "Sunrise is at 07:03 on the 15th and 07:02 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 15th and is not on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12439 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Zunyi, 1977: Tuesday 15 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": "1977-03-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-15", "confidence": "determinate" } ], "quote": "In Zunyi, Pāpamocanī Ekādaśī 1977 falls on Tuesday 15 March. Ekādaśī runs from 03:35 on Tue 15 Mar to 02:33 on Wed 16 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-03-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-03-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18073, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-03-17T01:53:27+08:00", "utc": "1977-03-16T17:53:27Z", "ms": 227382807495.255 }, "end": { "local": "1977-03-18T01:38:30+08:00", "utc": "1977-03-17T17:38:30Z", "ms": 227468310246.79382 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-17T01:53:27+08:00", "utc": "1977-03-16T17:53:27Z", "ms": 227382807495.255 }, "end": { "local": "1977-03-18T01:38:30+08:00", "utc": "1977-03-17T17:38:30Z", "ms": 227468310246.79382 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-03-16", "window": { "start": { "local": "1977-03-16T19:01:02+08:00", "utc": "1977-03-16T11:01:02Z", "ms": 227358061659.40088 }, "end": { "local": "1977-03-16T20:36:58+08:00", "utc": "1977-03-16T12:36:58Z", "ms": 227363817563.27502 } }, "covered_min": 0, "window_min": 96, "qualifies": false }, { "local_date": "1977-03-17", "window": { "start": { "local": "1977-03-17T19:01:34+08:00", "utc": "1977-03-17T11:01:34Z", "ms": 227444494273.0558 }, "end": { "local": "1977-03-17T20:37:17+08:00", "utc": "1977-03-17T12:37:17Z", "ms": 227450236895.44882 } }, "covered_min": 96, "window_min": 96, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:53 on Thu 17 Mar to 01:39 on Fri 18 Mar.", "fact": "1977-03-16T17:53:27Z → 1977-03-17T17:38:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:01–20:37 on the 16th, 19:02–20:37 on the 17th.", "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 96 minutes on the 16th and 96 of 96 on the 17th.", "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 18073 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Thursday 17 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": "1977-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-17", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Thursday 17 March. Trayodaśī runs from 01:53 on Thu 17 Mar to 01:39 on Fri 18 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-03-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shivaratri?on=1977-03-18", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 841, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-03-18T01:38:30+08:00", "utc": "1977-03-17T17:38:30Z", "ms": 227468310246.79382 }, "end": { "local": "1977-03-19T01:50:53+08:00", "utc": "1977-03-18T17:50:53Z", "ms": 227555452533.12512 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-18T01:38:30+08:00", "utc": "1977-03-17T17:38:30Z", "ms": 227468310246.79382 }, "end": { "local": "1977-03-19T01:50:53+08:00", "utc": "1977-03-18T17:50:53Z", "ms": 227555452533.12512 } }, "kaala": "nishita", "days": [ { "local_date": "1977-03-17", "window": { "start": { "local": "1977-03-18T00:36:29+08:00", "utc": "1977-03-17T16:36:29Z", "ms": 227464589107.02966 }, "end": { "local": "1977-03-18T01:24:29+08:00", "utc": "1977-03-17T17:24:29Z", "ms": 227467469107.02966 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-03-18", "window": { "start": { "local": "1977-03-19T00:36:12+08:00", "utc": "1977-03-18T16:36:12Z", "ms": 227550971739.82147 }, "end": { "local": "1977-03-19T01:24:12+08:00", "utc": "1977-03-18T17:24:12Z", "ms": 227553851739.82147 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:39 on Fri 18 Mar to 01:51 on Sat 19 Mar.", "fact": "1977-03-17T17:38:30Z → 1977-03-18T17:50:53Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:36–01:24 on the 17th, 00:36–01:24 on the 18th.", "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 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 841 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Friday 18 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": "1977-03-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-18", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Friday 18 March. Caturdaśī runs from 01:39 on Fri 18 Mar to 01:51 on Sat 19 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-03-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31867, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1977-03-20T02:32:38+08:00", "utc": "1977-03-19T18:32:38Z", "ms": 227644357806.09915 }, "end": { "local": "1977-03-21T03:44:46+08:00", "utc": "1977-03-20T19:44:46Z", "ms": 227735085617.37045 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-20T02:32:38+08:00", "utc": "1977-03-19T18:32:38Z", "ms": 227644357806.09915 }, "end": { "local": "1977-03-21T03:44:46+08:00", "utc": "1977-03-20T19:44:46Z", "ms": 227735085617.37045 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-03-20", "window": { "start": { "local": "1977-03-20T12:36:10+08:00", "utc": "1977-03-20T04:36:10Z", "ms": 227680570276.0844 }, "end": { "local": "1977-03-20T13:24:10+08:00", "utc": "1977-03-20T05:24:10Z", "ms": 227683450276.0844 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-03-21", "window": { "start": { "local": "1977-03-21T12:35:53+08:00", "utc": "1977-03-21T04:35:53Z", "ms": 227766952536.09802 }, "end": { "local": "1977-03-21T13:23:53+08:00", "utc": "1977-03-21T05:23:53Z", "ms": 227769832536.09802 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:33 on Sun 20 Mar to 03:45 on Mon 21 Mar.", "fact": "1977-03-19T18:32:38Z → 1977-03-20T19:44:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 20th, 12:36–13:24 on the 21st.", "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 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31867 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Zunyi, 1977: Sunday 20 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha-caitra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-03-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-20", "confidence": "determinate" } ], "quote": "In Zunyi, Navarātrārambha (Caitra) (Chaitra Navratri) 1977 falls on Sunday 20 March. Pratipadā runs from 02:33 on Sun 20 Mar to 03:45 on Mon 21 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18070, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1977-03-22T05:26:25+08:00", "utc": "1977-03-21T21:26:25Z", "ms": 227827584800.65652 }, "end": { "local": "1977-03-23T07:34:07+08:00", "utc": "1977-03-22T23:34:07Z", "ms": 227921646509.72916 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-22T05:26:25+08:00", "utc": "1977-03-21T21:26:25Z", "ms": 227827584800.65652 }, "end": { "local": "1977-03-23T07:34:07+08:00", "utc": "1977-03-22T23:34:07Z", "ms": 227921646509.72916 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-03-22", "window": { "start": { "local": "1977-03-22T12:35:35+08:00", "utc": "1977-03-22T04:35:35Z", "ms": 227853334676.073 }, "end": { "local": "1977-03-22T13:23:35+08:00", "utc": "1977-03-22T05:23:35Z", "ms": 227856214676.073 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-03-23", "window": { "start": { "local": "1977-03-23T12:35:17+08:00", "utc": "1977-03-23T04:35:17Z", "ms": 227939716713.3788 }, "end": { "local": "1977-03-23T13:23:17+08:00", "utc": "1977-03-23T05:23:17Z", "ms": 227942596713.3788 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:26 on Tue 22 Mar to 07:34 on Wed 23 Mar.", "fact": "1977-03-21T21:26:25Z → 1977-03-22T23:34:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 22nd, 12:35–13:23 on the 23rd.", "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 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18070 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Zunyi, 1977: Tuesday 22 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gauri-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-22", "confidence": "determinate" } ], "quote": "In Zunyi, Gaurī Tṛtīyā (Gangaur) 1977 falls on Tuesday 22 March. Tṛtīyā runs from 05:26 on Tue 22 Mar to 07:34 on Wed 23 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18070, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1977-03-22T05:26:25+08:00", "utc": "1977-03-21T21:26:25Z", "ms": 227827584800.65652 }, "end": { "local": "1977-03-23T07:34:07+08:00", "utc": "1977-03-22T23:34:07Z", "ms": 227921646509.72916 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-22T05:26:25+08:00", "utc": "1977-03-21T21:26:25Z", "ms": 227827584800.65652 }, "end": { "local": "1977-03-23T07:34:07+08:00", "utc": "1977-03-22T23:34:07Z", "ms": 227921646509.72916 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-03-22", "window": { "start": { "local": "1977-03-22T12:35:35+08:00", "utc": "1977-03-22T04:35:35Z", "ms": 227853334676.073 }, "end": { "local": "1977-03-22T13:23:35+08:00", "utc": "1977-03-22T05:23:35Z", "ms": 227856214676.073 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-03-23", "window": { "start": { "local": "1977-03-23T12:35:17+08:00", "utc": "1977-03-23T04:35:17Z", "ms": 227939716713.3788 }, "end": { "local": "1977-03-23T13:23:17+08:00", "utc": "1977-03-23T05:23:17Z", "ms": 227942596713.3788 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:26 on Tue 22 Mar to 07:34 on Wed 23 Mar.", "fact": "1977-03-21T21:26:25Z → 1977-03-22T23:34:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 22nd, 12:35–13:23 on the 23rd.", "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 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18070 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Zunyi, 1977: Tuesday 22 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "saubhagya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-22", "confidence": "determinate" } ], "quote": "In Zunyi, Saubhāgya Śayana Vrata 1977 falls on Tuesday 22 March. Tṛtīyā runs from 05:26 on Tue 22 Mar to 07:34 on Wed 23 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-03-23", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9228, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-03-23T07:34:07+08:00", "utc": "1977-03-22T23:34:07Z", "ms": 227921646509.72916 }, "end": { "local": "1977-03-24T10:01:11+08:00", "utc": "1977-03-24T02:01:11Z", "ms": 228016870664.7736 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-23T07:34:07+08:00", "utc": "1977-03-22T23:34:07Z", "ms": 227921646509.72916 }, "end": { "local": "1977-03-24T10:01:11+08:00", "utc": "1977-03-24T02:01:11Z", "ms": 228016870664.7736 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-03-23", "window": { "start": { "local": "1977-03-23T12:35:17+08:00", "utc": "1977-03-23T04:35:17Z", "ms": 227939716713.3788 }, "end": { "local": "1977-03-23T13:23:17+08:00", "utc": "1977-03-23T05:23:17Z", "ms": 227942596713.3788 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-03-24", "window": { "start": { "local": "1977-03-24T12:34:59+08:00", "utc": "1977-03-24T04:34:59Z", "ms": 228026098665.69733 }, "end": { "local": "1977-03-24T13:22:59+08:00", "utc": "1977-03-24T05:22:59Z", "ms": 228028978665.69733 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:34 on Wed 23 Mar to 10:01 on Thu 24 Mar.", "fact": "1977-03-22T23:34:07Z → 1977-03-24T02:01:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 23rd, 12:35–13:23 on the 24th.", "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 23rd and 0 of 48 on the 24th.", "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 9228 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1977: Wednesday 23 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": "1977-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-23", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1977 falls on Wednesday 23 March. Caturthī runs from 07:34 on Wed 23 Mar to 10:01 on Thu 24 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-03-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-24", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 182, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1977-03-24T10:01:11+08:00", "utc": "1977-03-24T02:01:11Z", "ms": 228016870664.7736 }, "end": { "local": "1977-03-25T12:37:43+08:00", "utc": "1977-03-25T04:37:43Z", "ms": 228112662974.59317 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-24T10:01:11+08:00", "utc": "1977-03-24T02:01:11Z", "ms": 228016870664.7736 }, "end": { "local": "1977-03-25T12:37:43+08:00", "utc": "1977-03-25T04:37:43Z", "ms": 228112662974.59317 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-03-24", "window": { "start": { "local": "1977-03-24T12:34:59+08:00", "utc": "1977-03-24T04:34:59Z", "ms": 228026098665.69733 }, "end": { "local": "1977-03-24T13:22:59+08:00", "utc": "1977-03-24T05:22:59Z", "ms": 228028978665.69733 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-03-25", "window": { "start": { "local": "1977-03-25T12:34:41+08:00", "utc": "1977-03-25T04:34:41Z", "ms": 228112480551.03223 }, "end": { "local": "1977-03-25T13:22:41+08:00", "utc": "1977-03-25T05:22:41Z", "ms": 228115360551.03223 } }, "covered_min": 3, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 10:01 on Thu 24 Mar to 12:38 on Fri 25 Mar.", "fact": "1977-03-24T02:01:11Z → 1977-03-25T04:37:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 24th, 12:35–13:23 on the 25th.", "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 24th and 3 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 182 s < 300 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Zunyi, 1977: Thursday 24 March.", "fact": "confidence: boundary (margin)" } ], "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": "1977-03-24", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-24", "confidence": "determinate" } ], "quote": "In Zunyi, Lakṣmī Pañcamī 1977 falls on Thursday 24 March. Pañcamī runs from 10:01 on Thu 24 Mar to 12:38 on Fri 25 Mar and covers all of madhyāhna that midday. It also reaches the next midday for 3 minutes; by the rule the first midday is taken. It is 3 min 02 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14776, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1977-03-27T17:28:21+08:00", "utc": "1977-03-27T09:28:21Z", "ms": 228302900500.21613 }, "end": { "local": "1977-03-28T19:16:13+08:00", "utc": "1977-03-28T11:16:13Z", "ms": 228395772978.11365 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-27T17:28:21+08:00", "utc": "1977-03-27T09:28:21Z", "ms": 228302900500.21613 }, "end": { "local": "1977-03-28T19:16:13+08:00", "utc": "1977-03-28T11:16:13Z", "ms": 228395772978.11365 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-03-27", "window": { "start": { "local": "1977-03-27T12:34:04+08:00", "utc": "1977-03-27T04:34:04Z", "ms": 228285244194.35367 }, "end": { "local": "1977-03-27T13:22:04+08:00", "utc": "1977-03-27T05:22:04Z", "ms": 228288124194.35367 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-03-28", "window": { "start": { "local": "1977-03-28T12:33:46+08:00", "utc": "1977-03-28T04:33:46Z", "ms": 228371625989.93423 }, "end": { "local": "1977-03-28T13:21:46+08:00", "utc": "1977-03-28T05:21:46Z", "ms": 228374505989.93423 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:28 on Sun 27 Mar to 19:16 on Mon 28 Mar.", "fact": "1977-03-27T09:28:21Z → 1977-03-28T11:16:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 on the 27th, 12:34–13:22 on the 28th.", "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 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14776 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Zunyi, 1977: Monday 28 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhavani-utpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Annapurna puja (Beng.) (paraviddha), Bhavani-utpatti (paraviddha), Asokastami (Special when combined with naks. Punarvasu and Wednesday, after mid-day)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-28", "confidence": "determinate" } ], "quote": "In Zunyi, Bhavānī Utpatti 1977 falls on Monday 28 March. Aṣṭamī runs from 17:28 on Sun 27 Mar to 19:16 on Mon 28 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21267, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1977-03-28T19:16:13+08:00", "utc": "1977-03-28T11:16:13Z", "ms": 228395772978.11365 }, "end": { "local": "1977-03-29T20:24:52+08:00", "utc": "1977-03-29T12:24:52Z", "ms": 228486291964.0805 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-28T19:16:13+08:00", "utc": "1977-03-28T11:16:13Z", "ms": 228395772978.11365 }, "end": { "local": "1977-03-29T20:24:52+08:00", "utc": "1977-03-29T12:24:52Z", "ms": 228486291964.0805 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-03-28", "window": { "start": { "local": "1977-03-28T12:33:46+08:00", "utc": "1977-03-28T04:33:46Z", "ms": 228371625989.93423 }, "end": { "local": "1977-03-28T13:21:46+08:00", "utc": "1977-03-28T05:21:46Z", "ms": 228374505989.93423 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-03-29", "window": { "start": { "local": "1977-03-29T12:33:28+08:00", "utc": "1977-03-29T04:33:28Z", "ms": 228458007793.76617 }, "end": { "local": "1977-03-29T13:21:28+08:00", "utc": "1977-03-29T05:21:28Z", "ms": 228460887793.76617 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 19:16 on Mon 28 Mar to 20:25 on Tue 29 Mar.", "fact": "1977-03-28T11:16:13Z → 1977-03-29T12:24:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 on the 28th, 12:33–13:21 on the 29th.", "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 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: unstated → only-day · margin 21267 s" }, { "step": "ruling", "text": "Rāma Navamī, Zunyi, 1977: Tuesday 29 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rama-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Ramanavami (madhyahnavyapini, special with Punarvasu naks.), Rama jayanti." } ], "not_evaluated": "The row calls the day special when it falls with Punarvasu nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-29", "confidence": "determinate" } ], "quote": "In Zunyi, Rāma Navamī 1977 falls on Tuesday 29 March. Navamī runs from 19:16 on Mon 28 Mar to 20:25 on Tue 29 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-03-31", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35800, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-03-30T20:48:06+08:00", "utc": "1977-03-30T12:48:06Z", "ms": 228574086046.0157 }, "end": { "local": "1977-03-31T20:23:55+08:00", "utc": "1977-03-31T12:23:55Z", "ms": 228659035403.0954 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-03-30T20:48:06+08:00", "utc": "1977-03-30T12:48:06Z", "ms": 228574086046.0157 }, "end": { "local": "1977-03-31T20:23:55+08:00", "utc": "1977-03-31T12:23:55Z", "ms": 228659035403.0954 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-03-31", "window": { "start": { "local": "1977-03-31T06:44:46+08:00", "utc": "1977-03-30T22:44:46Z", "ms": 228609885839.48663 }, "end": { "local": "1977-03-31T06:44:46+08:00", "utc": "1977-03-30T22:44:46Z", "ms": 228609885839.48663 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-04-01", "window": { "start": { "local": "1977-04-01T06:43:39+08:00", "utc": "1977-03-31T22:43:39Z", "ms": 228696218650.3694 }, "end": { "local": "1977-04-01T06:43:39+08:00", "utc": "1977-03-31T22:43:39Z", "ms": 228696218650.3694 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:48 on Wed 30 Mar to 20:24 on Thu 31 Mar.", "fact": "1977-03-30T12:48:06Z → 1977-03-31T12:23:55Z" }, { "step": "kaala", "text": "Sunrise is at 06:45 on the 31st and 06:44 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 31st and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35800 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Zunyi, 1977: Thursday 31 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": "1977-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-03-31", "confidence": "determinate" } ], "quote": "In Zunyi, Kāmadā Ekādaśī 1977 falls on Thursday 31 March. Ekādaśī runs from 20:48 on Wed 30 Mar to 20:24 on Thu 31 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-03-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-04-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-01", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 280, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-04-01T19:14:09+08:00", "utc": "1977-04-01T11:14:09Z", "ms": 228741248662.83313 }, "end": { "local": "1977-04-02T17:23:34+08:00", "utc": "1977-04-02T09:23:34Z", "ms": 228821014415.76138 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-04-01T19:14:09+08:00", "utc": "1977-04-01T11:14:09Z", "ms": 228741248662.83313 }, "end": { "local": "1977-04-02T17:23:34+08:00", "utc": "1977-04-02T09:23:34Z", "ms": 228821014415.76138 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-04-01", "window": { "start": { "local": "1977-04-01T19:09:28+08:00", "utc": "1977-04-01T11:09:28Z", "ms": 228740968259.91644 }, "end": { "local": "1977-04-01T20:41:53+08:00", "utc": "1977-04-01T12:41:53Z", "ms": 228746512711.8285 } }, "covered_min": 88, "window_min": 92, "qualifies": true }, { "local_date": "1977-04-02", "window": { "start": { "local": "1977-04-02T19:09:59+08:00", "utc": "1977-04-02T11:09:59Z", "ms": 228827399342.2028 }, "end": { "local": "1977-04-02T20:42:11+08:00", "utc": "1977-04-02T12:42:11Z", "ms": 228832930745.2897 } }, "covered_min": 0, "window_min": 92, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:14 on Fri 1 Apr to 17:24 on Sat 2 Apr.", "fact": "1977-04-01T11:14:09Z → 1977-04-02T09:23:34Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:09–20:42 on the 1st, 19:10–20:42 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 88 of 92 minutes on the 1st and 0 of 92 on the 2nd.", "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 280 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Friday 1 April.", "fact": "confidence: boundary (margin)" } ], "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": "1977-04-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-01", "confidence": "boundary" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Friday 1 April. Trayodaśī runs from 19:14 on Fri 1 Apr to 17:24 on Sat 2 Apr and covers 88 of 92 minutes of pradoṣa that evening. It is 4 min 40 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-04-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14599, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-04-01T19:14:09+08:00", "utc": "1977-04-01T11:14:09Z", "ms": 228741248662.83313 }, "end": { "local": "1977-04-02T17:23:34+08:00", "utc": "1977-04-02T09:23:34Z", "ms": 228821014415.76138 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-04-01T19:14:09+08:00", "utc": "1977-04-01T11:14:09Z", "ms": 228741248662.83313 }, "end": { "local": "1977-04-02T17:23:34+08:00", "utc": "1977-04-02T09:23:34Z", "ms": 228821014415.76138 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-04-01", "window": { "start": { "local": "1977-04-01T12:32:33+08:00", "utc": "1977-04-01T04:32:33Z", "ms": 228717153455.1429 }, "end": { "local": "1977-04-01T13:20:33+08:00", "utc": "1977-04-01T05:20:33Z", "ms": 228720033455.1429 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-04-02", "window": { "start": { "local": "1977-04-02T12:32:15+08:00", "utc": "1977-04-02T04:32:15Z", "ms": 228803535495.72977 }, "end": { "local": "1977-04-02T13:20:15+08:00", "utc": "1977-04-02T05:20:15Z", "ms": 228806415495.72977 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:14 on Fri 1 Apr to 17:24 on Sat 2 Apr.", "fact": "1977-04-01T11:14:09Z → 1977-04-02T09:23:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:33–13:21 on the 1st, 12:32–13:20 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 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: purvaviddha → only-day · margin 14599 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Zunyi, 1977: Saturday 2 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": "1977-04-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-02", "confidence": "determinate" } ], "quote": "In Zunyi, Anaṅga Trayodaśī 1977 falls on Saturday 2 April. Trayodaśī runs from 19:14 on Fri 1 Apr to 17:24 on Sat 2 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5948, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-04-02T17:23:34+08:00", "utc": "1977-04-02T09:23:34Z", "ms": 228821014415.76138 }, "end": { "local": "1977-04-03T14:59:06+08:00", "utc": "1977-04-03T06:59:06Z", "ms": 228898746064.92233 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-04-02T17:23:34+08:00", "utc": "1977-04-02T09:23:34Z", "ms": 228821014415.76138 }, "end": { "local": "1977-04-03T14:59:06+08:00", "utc": "1977-04-03T06:59:06Z", "ms": 228898746064.92233 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-04-02", "window": { "start": { "local": "1977-04-02T12:32:15+08:00", "utc": "1977-04-02T04:32:15Z", "ms": 228803535495.72977 }, "end": { "local": "1977-04-02T13:20:15+08:00", "utc": "1977-04-02T05:20:15Z", "ms": 228806415495.72977 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-04-03", "window": { "start": { "local": "1977-04-03T12:31:58+08:00", "utc": "1977-04-03T04:31:58Z", "ms": 228889917649.8288 }, "end": { "local": "1977-04-03T13:19:58+08:00", "utc": "1977-04-03T05:19:58Z", "ms": 228892797649.8288 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:24 on Sat 2 Apr to 14:59 on Sun 3 Apr.", "fact": "1977-04-02T09:23:34Z → 1977-04-03T06:59:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 2nd, 12:32–13:20 on the 3rd.", "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 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 5948 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Zunyi, 1977: Sunday 3 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": "1977-04-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-03", "confidence": "determinate" } ], "quote": "In Zunyi, Viṣṇudamanaka Caturdaśī 1977 falls on Sunday 3 April. Caturdaśī runs from 17:24 on Sat 2 Apr to 14:59 on Sun 3 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1368, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-04-03T14:59:06+08:00", "utc": "1977-04-03T06:59:06Z", "ms": 228898746064.92233 }, "end": { "local": "1977-04-04T12:08:52+08:00", "utc": "1977-04-04T04:08:52Z", "ms": 228974932173.42883 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1977-04-03T14:59:06+08:00", "utc": "1977-04-03T06:59:06Z", "ms": 228898746064.92233 }, "end": { "local": "1977-04-04T12:08:52+08:00", "utc": "1977-04-04T04:08:52Z", "ms": 228974932173.42883 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-04-03", "window": { "start": { "local": "1977-04-03T12:31:58+08:00", "utc": "1977-04-03T04:31:58Z", "ms": 228889917649.8288 }, "end": { "local": "1977-04-03T13:19:58+08:00", "utc": "1977-04-03T05:19:58Z", "ms": 228892797649.8288 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-04-04", "window": { "start": { "local": "1977-04-04T12:31:40+08:00", "utc": "1977-04-04T04:31:40Z", "ms": 228976299940.64362 }, "end": { "local": "1977-04-04T13:19:40+08:00", "utc": "1977-04-04T05:19:40Z", "ms": 228979179940.64362 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 14:59 on Sun 3 Apr to 12:09 on Mon 4 Apr.", "fact": "1977-04-03T06:59:06Z → 1977-04-04T04:08:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 3rd, 12:32–13:20 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 1368 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Zunyi, 1977: Monday 4 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": "1977-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-04", "confidence": "determinate" } ], "quote": "In Zunyi, Caitrī Pūrṇimā 1977 falls on Monday 4 April. Pūrṇimā runs from 14:59 on Sun 3 Apr to 12:09 on Mon 4 Apr, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-04-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2298, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-04-07T02:31:14+08:00", "utc": "1977-04-06T18:31:14Z", "ms": 229199473901.20053 }, "end": { "local": "1977-04-07T23:24:46+08:00", "utc": "1977-04-07T15:24:46Z", "ms": 229274686482.41293 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-07T02:31:14+08:00", "utc": "1977-04-06T18:31:14Z", "ms": 229199473901.20053 }, "end": { "local": "1977-04-07T23:24:46+08:00", "utc": "1977-04-07T15:24:46Z", "ms": 229274686482.41293 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-04-06", "window": { "start": { "local": "1977-04-06T21:41:24+08:00", "utc": "1977-04-06T13:41:24Z", "ms": 229182084347.6173 }, "end": { "local": "1977-04-06T21:41:24+08:00", "utc": "1977-04-06T13:41:24Z", "ms": 229182084347.6173 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-04-07", "window": { "start": { "local": "1977-04-07T22:46:29+08:00", "utc": "1977-04-07T14:46:29Z", "ms": 229272388883.66785 }, "end": { "local": "1977-04-07T22:46:29+08:00", "utc": "1977-04-07T14:46:29Z", "ms": 229272388883.66785 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:31 on Thu 7 Apr to 23:25 on Thu 7 Apr.", "fact": "1977-04-06T18:31:14Z → 1977-04-07T15:24:46Z" }, { "step": "kaala", "text": "Moonrise is at 21:41 on the 6th and 22:46 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 6th and is on the 7th.", "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 2298 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Thursday 7 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": "1977-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-07", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Thursday 7 April. Caturthī runs from 02:31 on Thu 7 Apr to 23:25 on Thu 7 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-04-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28745, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1977-04-13T22:30:28+08:00", "utc": "1977-04-13T14:30:28Z", "ms": 229789828251.48563 }, "end": { "local": "1977-05-14T19:24:10+08:00", "utc": "1977-05-14T11:24:10Z", "ms": 232457050336.67194 } }, "span": { "of": "transit", "start": { "local": "1977-04-13T22:30:28+08:00", "utc": "1977-04-13T14:30:28Z", "ms": 229789828251.48563 }, "end": { "local": "1977-04-13T22:30:28+08:00", "utc": "1977-04-13T14:30:28Z", "ms": 229789828251.48563 } }, "kaala": "day", "days": [ { "local_date": "1977-04-13", "window": { "start": { "local": "1977-04-13T06:30:36+08:00", "utc": "1977-04-12T22:30:36Z", "ms": 229732235595.44266 }, "end": { "local": "1977-04-14T06:29:33+08:00", "utc": "1977-04-13T22:29:33Z", "ms": 229818573155.4933 } }, "covered_min": 1, "window_min": 1439, "qualifies": true }, { "local_date": "1977-04-14", "window": { "start": { "local": "1977-04-14T06:29:33+08:00", "utc": "1977-04-13T22:29:33Z", "ms": 229818573155.4933 }, "end": { "local": "1977-04-15T06:28:31+08:00", "utc": "1977-04-14T22:28:31Z", "ms": 229904911271.19757 } }, "covered_min": 0, "window_min": 1439, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 22:30 on Wed 13 Apr.", "fact": "1977-04-13T14:30:28Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:31 on the 13th, and from 06:30 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 28745 s" }, { "step": "ruling", "text": "Vaiśākhī, Zunyi, 1977: Wednesday 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": "1977-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1977-04-13", "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": "1977-04-14", "statement": "Past sunset, the next day (the Tamil rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } } ], "quote": "In Zunyi, Vaiśākhī 1977 falls on Wednesday 13 April. The Sun enters Meṣa at 22:30 on Wed 13 Apr, and the rule counts the day from sunrise. By the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 14 April.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-04-14", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23988, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-04-13T13:10:23+08:00", "utc": "1977-04-13T05:10:23Z", "ms": 229756223470.4404 }, "end": { "local": "1977-04-14T13:18:25+08:00", "utc": "1977-04-14T05:18:25Z", "ms": 229843105396.45328 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-13T13:10:23+08:00", "utc": "1977-04-13T05:10:23Z", "ms": 229756223470.4404 }, "end": { "local": "1977-04-14T13:18:25+08:00", "utc": "1977-04-14T05:18:25Z", "ms": 229843105396.45328 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-04-13", "window": { "start": { "local": "1977-04-13T06:30:36+08:00", "utc": "1977-04-12T22:30:36Z", "ms": 229732235595.44266 }, "end": { "local": "1977-04-13T06:30:36+08:00", "utc": "1977-04-12T22:30:36Z", "ms": 229732235595.44266 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-04-14", "window": { "start": { "local": "1977-04-14T06:29:33+08:00", "utc": "1977-04-13T22:29:33Z", "ms": 229818573155.4933 }, "end": { "local": "1977-04-14T06:29:33+08:00", "utc": "1977-04-13T22:29:33Z", "ms": 229818573155.4933 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:10 on Wed 13 Apr to 13:18 on Thu 14 Apr.", "fact": "1977-04-13T05:10:23Z → 1977-04-14T05:18:25Z" }, { "step": "kaala", "text": "Sunrise is at 06:31 on the 13th and 06:30 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 13th and is on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23988 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Zunyi, 1977: Thursday 14 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": "1977-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-14", "confidence": "determinate" } ], "quote": "In Zunyi, Varūthinī Ekādaśī 1977 falls on Thursday 14 April. Ekādaśī runs from 13:10 on Wed 13 Apr to 13:18 on Thu 14 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-04-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-04-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15115, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-04-15T13:57:34+08:00", "utc": "1977-04-15T05:57:34Z", "ms": 229931853597.95792 }, "end": { "local": "1977-04-16T15:05:27+08:00", "utc": "1977-04-16T07:05:27Z", "ms": 230022327043.9338 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-15T13:57:34+08:00", "utc": "1977-04-15T05:57:34Z", "ms": 229931853597.95792 }, "end": { "local": "1977-04-16T15:05:27+08:00", "utc": "1977-04-16T07:05:27Z", "ms": 230022327043.9338 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-04-15", "window": { "start": { "local": "1977-04-15T19:16:50+08:00", "utc": "1977-04-15T11:16:50Z", "ms": 229951009530.02542 }, "end": { "local": "1977-04-15T20:46:15+08:00", "utc": "1977-04-15T12:46:15Z", "ms": 229956374921.46628 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "1977-04-16", "window": { "start": { "local": "1977-04-16T19:17:22+08:00", "utc": "1977-04-16T11:17:22Z", "ms": 230037441901.2463 }, "end": { "local": "1977-04-16T20:46:35+08:00", "utc": "1977-04-16T12:46:35Z", "ms": 230042794882.7064 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:58 on Fri 15 Apr to 15:05 on Sat 16 Apr.", "fact": "1977-04-15T05:57:34Z → 1977-04-16T07:05:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:17–20:46 on the 15th, 19:17–20:47 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 89 of 89 minutes on the 15th and 0 of 89 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15115 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Friday 15 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": "1977-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-15", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Friday 15 April. Trayodaśī runs from 13:58 on Fri 15 Apr to 15:05 on Sat 16 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-04-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shivaratri?on=1977-04-16", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28109, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-04-16T15:05:27+08:00", "utc": "1977-04-16T07:05:27Z", "ms": 230022327043.9338 }, "end": { "local": "1977-04-17T16:39:13+08:00", "utc": "1977-04-17T08:39:13Z", "ms": 230114352635.89084 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-16T15:05:27+08:00", "utc": "1977-04-16T07:05:27Z", "ms": 230022327043.9338 }, "end": { "local": "1977-04-17T16:39:13+08:00", "utc": "1977-04-17T08:39:13Z", "ms": 230114352635.89084 } }, "kaala": "nishita", "days": [ { "local_date": "1977-04-16", "window": { "start": { "local": "1977-04-17T00:27:56+08:00", "utc": "1977-04-16T16:27:56Z", "ms": 230056075581.72168 }, "end": { "local": "1977-04-17T01:15:56+08:00", "utc": "1977-04-16T17:15:56Z", "ms": 230058955581.72168 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-04-17", "window": { "start": { "local": "1977-04-18T00:27:42+08:00", "utc": "1977-04-17T16:27:42Z", "ms": 230142461796.92078 }, "end": { "local": "1977-04-18T01:15:42+08:00", "utc": "1977-04-17T17:15:42Z", "ms": 230145341796.92078 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:05 on Sat 16 Apr to 16:39 on Sun 17 Apr.", "fact": "1977-04-16T07:05:27Z → 1977-04-17T08:39:13Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:28–01:16 on the 16th, 00:28–01:16 on the 17th.", "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 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28109 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Saturday 16 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": "1977-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-16", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Saturday 16 April. Caturdaśī runs from 15:05 on Sat 16 Apr to 16:39 on Sun 17 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-04-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16201, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1977-04-20T23:17:32+08:00", "utc": "1977-04-20T15:17:32Z", "ms": 230397451995.3775 }, "end": { "local": "1977-04-22T01:51:35+08:00", "utc": "1977-04-21T17:51:35Z", "ms": 230493094901.45322 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-20T23:17:32+08:00", "utc": "1977-04-20T15:17:32Z", "ms": 230397451995.3775 }, "end": { "local": "1977-04-22T01:51:35+08:00", "utc": "1977-04-21T17:51:35Z", "ms": 230493094901.45322 } }, "kaala": "purvahna", "days": [ { "local_date": "1977-04-21", "window": { "start": { "local": "1977-04-21T06:22:33+08:00", "utc": "1977-04-20T22:22:33Z", "ms": 230422952911.12808 }, "end": { "local": "1977-04-21T10:41:44+08:00", "utc": "1977-04-21T02:41:44Z", "ms": 230438503883.78635 } }, "covered_min": 259, "window_min": 259, "qualifies": true }, { "local_date": "1977-04-22", "window": { "start": { "local": "1977-04-22T06:21:36+08:00", "utc": "1977-04-21T22:21:36Z", "ms": 230509295549.72348 }, "end": { "local": "1977-04-22T10:41:17+08:00", "utc": "1977-04-22T02:41:17Z", "ms": 230524876706.7755 } }, "covered_min": 0, "window_min": 260, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 23:18 on Wed 20 Apr to 01:52 on Fri 22 Apr.", "fact": "1977-04-20T15:17:32Z → 1977-04-21T17:51:35Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:23–10:42 on the 21st, 06:22–10:41 on the 22nd.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 259 of 259 minutes on the 21st and 0 of 260 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16201 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Zunyi, 1977: Thursday 21 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.", "kaala": "purvahna", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-21", "confidence": "determinate" } ], "quote": "In Zunyi, Akṣaya Tṛtīyā 1977 falls on Thursday 21 April. Tṛtīyā runs from 23:18 on Wed 20 Apr to 01:52 on Fri 22 Apr and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8975, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1977-04-20T23:17:32+08:00", "utc": "1977-04-20T15:17:32Z", "ms": 230397451995.3775 }, "end": { "local": "1977-04-22T01:51:35+08:00", "utc": "1977-04-21T17:51:35Z", "ms": 230493094901.45322 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-20T23:17:32+08:00", "utc": "1977-04-20T15:17:32Z", "ms": 230397451995.3775 }, "end": { "local": "1977-04-22T01:51:35+08:00", "utc": "1977-04-21T17:51:35Z", "ms": 230493094901.45322 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-04-20", "window": { "start": { "local": "1977-04-20T19:19:33+08:00", "utc": "1977-04-20T11:19:33Z", "ms": 230383172770.2041 }, "end": { "local": "1977-04-20T20:47:57+08:00", "utc": "1977-04-20T12:47:57Z", "ms": 230388476788.99396 } }, "covered_min": 0, "window_min": 88, "qualifies": false }, { "local_date": "1977-04-21", "window": { "start": { "local": "1977-04-21T19:20:06+08:00", "utc": "1977-04-21T11:20:06Z", "ms": 230469605829.10287 }, "end": { "local": "1977-04-21T20:48:18+08:00", "utc": "1977-04-21T12:48:18Z", "ms": 230474897791.8523 } }, "covered_min": 88, "window_min": 88, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 23:18 on Wed 20 Apr to 01:52 on Fri 22 Apr.", "fact": "1977-04-20T15:17:32Z → 1977-04-21T17:51:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:20–20:48 on the 20th, 19:20–20:48 on the 21st.", "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 88 minutes on the 20th and 88 of 88 on the 21st.", "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 8975 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Zunyi, 1977: Thursday 21 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-21", "confidence": "determinate" } ], "quote": "In Zunyi, Paraśurāma Jayantī 1977 falls on Thursday 21 April. Tṛtīyā runs from 23:18 on Wed 20 Apr to 01:52 on Fri 22 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-04-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28983, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-04-22T01:51:35+08:00", "utc": "1977-04-21T17:51:35Z", "ms": 230493094901.45322 }, "end": { "local": "1977-04-23T04:23:53+08:00", "utc": "1977-04-22T20:23:53Z", "ms": 230588632593.4395 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-22T01:51:35+08:00", "utc": "1977-04-21T17:51:35Z", "ms": 230493094901.45322 }, "end": { "local": "1977-04-23T04:23:53+08:00", "utc": "1977-04-22T20:23:53Z", "ms": 230588632593.4395 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-04-22", "window": { "start": { "local": "1977-04-22T12:27:07+08:00", "utc": "1977-04-22T04:27:07Z", "ms": 230531227285.30154 }, "end": { "local": "1977-04-22T13:15:07+08:00", "utc": "1977-04-22T05:15:07Z", "ms": 230534107285.30154 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-04-23", "window": { "start": { "local": "1977-04-23T12:26:56+08:00", "utc": "1977-04-23T04:26:56Z", "ms": 230617615632.90005 }, "end": { "local": "1977-04-23T13:14:56+08:00", "utc": "1977-04-23T05:14:56Z", "ms": 230620495632.90005 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:52 on Fri 22 Apr to 04:24 on Sat 23 Apr.", "fact": "1977-04-21T17:51:35Z → 1977-04-22T20:23:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 22nd, 12:27–13:15 on the 23rd.", "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 22nd and 0 of 48 on the 23rd.", "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 28983 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1977: Friday 22 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": "1977-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-22", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1977 falls on Friday 22 April. Caturthī runs from 01:52 on Fri 22 Apr to 04:24 on Sat 23 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-04-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20513, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1977-04-23T04:23:53+08:00", "utc": "1977-04-22T20:23:53Z", "ms": 230588632593.4395 }, "end": { "local": "1977-04-24T06:44:52+08:00", "utc": "1977-04-23T22:44:52Z", "ms": 230683491719.91513 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-23T04:23:53+08:00", "utc": "1977-04-22T20:23:53Z", "ms": 230588632593.4395 }, "end": { "local": "1977-04-24T06:44:52+08:00", "utc": "1977-04-23T22:44:52Z", "ms": 230683491719.91513 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-04-23", "window": { "start": { "local": "1977-04-23T12:26:56+08:00", "utc": "1977-04-23T04:26:56Z", "ms": 230617615632.90005 }, "end": { "local": "1977-04-23T13:14:56+08:00", "utc": "1977-04-23T05:14:56Z", "ms": 230620495632.90005 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-04-24", "window": { "start": { "local": "1977-04-24T12:26:44+08:00", "utc": "1977-04-24T04:26:44Z", "ms": 230704004422.4011 }, "end": { "local": "1977-04-24T13:14:44+08:00", "utc": "1977-04-24T05:14:44Z", "ms": 230706884422.4011 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 04:24 on Sat 23 Apr to 06:45 on Sun 24 Apr.", "fact": "1977-04-22T20:23:53Z → 1977-04-23T22:44:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 23rd, 12:27–13:15 on the 24th.", "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 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20513 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Zunyi, 1977: Saturday 23 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-23", "confidence": "determinate" } ], "quote": "In Zunyi, Śaṅkara Jayantī 1977 falls on Saturday 23 April. Pañcamī runs from 04:24 on Sat 23 Apr to 06:45 on Sun 24 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8035, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1977-04-25T08:44:19+08:00", "utc": "1977-04-25T00:44:19Z", "ms": 230777059411.80435 }, "end": { "local": "1977-04-26T10:12:29+08:00", "utc": "1977-04-26T02:12:29Z", "ms": 230868748587.9177 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-25T08:44:19+08:00", "utc": "1977-04-25T00:44:19Z", "ms": 230777059411.80435 }, "end": { "local": "1977-04-26T10:12:29+08:00", "utc": "1977-04-26T02:12:29Z", "ms": 230868748587.9177 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-04-25", "window": { "start": { "local": "1977-04-25T12:26:34+08:00", "utc": "1977-04-25T04:26:34Z", "ms": 230790393663.14877 }, "end": { "local": "1977-04-25T13:14:34+08:00", "utc": "1977-04-25T05:14:34Z", "ms": 230793273663.14877 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-04-26", "window": { "start": { "local": "1977-04-26T12:26:23+08:00", "utc": "1977-04-26T04:26:23Z", "ms": 230876783364.38574 }, "end": { "local": "1977-04-26T13:14:23+08:00", "utc": "1977-04-26T05:14:23Z", "ms": 230879663364.38574 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 08:44 on Mon 25 Apr to 10:12 on Tue 26 Apr.", "fact": "1977-04-25T00:44:19Z → 1977-04-26T02:12:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 25th, 12:26–13:14 on the 26th.", "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 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8035 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Zunyi, 1977: Monday 25 April.", "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": "1977-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-25", "confidence": "determinate" } ], "quote": "In Zunyi, Gaṅgotpatti (Ganga Saptami) 1977 falls on Monday 25 April. Saptamī runs from 08:44 on Mon 25 Apr to 10:12 on Tue 26 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-04-30", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9473, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-04-29T10:21:42+08:00", "utc": "1977-04-29T02:21:42Z", "ms": 231128501505.10025 }, "end": { "local": "1977-04-30T08:52:18+08:00", "utc": "1977-04-30T00:52:18Z", "ms": 231209537723.44937 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-29T10:21:42+08:00", "utc": "1977-04-29T02:21:42Z", "ms": 231128501505.10025 }, "end": { "local": "1977-04-30T08:52:18+08:00", "utc": "1977-04-30T00:52:18Z", "ms": 231209537723.44937 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-04-29", "window": { "start": { "local": "1977-04-29T06:15:16+08:00", "utc": "1977-04-28T22:15:16Z", "ms": 231113715844.0685 }, "end": { "local": "1977-04-29T06:15:16+08:00", "utc": "1977-04-28T22:15:16Z", "ms": 231113715844.0685 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-04-30", "window": { "start": { "local": "1977-04-30T06:14:25+08:00", "utc": "1977-04-29T22:14:25Z", "ms": 231200064990.50552 }, "end": { "local": "1977-04-30T06:14:25+08:00", "utc": "1977-04-29T22:14:25Z", "ms": 231200064990.50552 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:22 on Fri 29 Apr to 08:52 on Sat 30 Apr.", "fact": "1977-04-29T02:21:42Z → 1977-04-30T00:52:18Z" }, { "step": "kaala", "text": "Sunrise is at 06:15 on the 29th and 06:14 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9473 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Zunyi, 1977: Saturday 30 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": "1977-04-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-30", "confidence": "determinate" } ], "quote": "In Zunyi, Mohinī Ekādaśī 1977 falls on Saturday 30 April. Ekādaśī runs from 10:22 on Fri 29 Apr to 08:52 on Sat 30 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-04-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12809, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1977-04-30T08:52:18+08:00", "utc": "1977-04-30T00:52:18Z", "ms": 231209537723.44937 }, "end": { "local": "1977-05-01T06:40:45+08:00", "utc": "1977-04-30T22:40:45Z", "ms": 231288044889.4475 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-30T08:52:18+08:00", "utc": "1977-04-30T00:52:18Z", "ms": 231209537723.44937 }, "end": { "local": "1977-05-01T06:40:45+08:00", "utc": "1977-04-30T22:40:45Z", "ms": 231288044889.4475 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-04-30", "window": { "start": { "local": "1977-04-30T12:25:47+08:00", "utc": "1977-04-30T04:25:47Z", "ms": 231222346960.46625 }, "end": { "local": "1977-04-30T13:13:47+08:00", "utc": "1977-04-30T05:13:47Z", "ms": 231225226960.46625 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-05-01", "window": { "start": { "local": "1977-05-01T12:25:39+08:00", "utc": "1977-05-01T04:25:39Z", "ms": 231308739106.05026 }, "end": { "local": "1977-05-01T13:13:39+08:00", "utc": "1977-05-01T05:13:39Z", "ms": 231311619106.05026 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 08:52 on Sat 30 Apr to 06:41 on Sun 1 May.", "fact": "1977-04-30T00:52:18Z → 1977-04-30T22:40:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 30th, 12:26–13:14 on the 1st.", "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 30th and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12809 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Zunyi, 1977: Saturday 30 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-04-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-30", "confidence": "determinate" } ], "quote": "In Zunyi, Paraśurāma Dvādaśī 1977 falls on Saturday 30 April. Dvādaśī runs from 08:52 on Sat 30 Apr to 06:41 on Sun 1 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12809, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1977-04-30T08:52:18+08:00", "utc": "1977-04-30T00:52:18Z", "ms": 231209537723.44937 }, "end": { "local": "1977-05-01T06:40:45+08:00", "utc": "1977-04-30T22:40:45Z", "ms": 231288044889.4475 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-04-30T08:52:18+08:00", "utc": "1977-04-30T00:52:18Z", "ms": 231209537723.44937 }, "end": { "local": "1977-05-01T06:40:45+08:00", "utc": "1977-04-30T22:40:45Z", "ms": 231288044889.4475 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-04-30", "window": { "start": { "local": "1977-04-30T12:25:47+08:00", "utc": "1977-04-30T04:25:47Z", "ms": 231222346960.46625 }, "end": { "local": "1977-04-30T13:13:47+08:00", "utc": "1977-04-30T05:13:47Z", "ms": 231225226960.46625 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-05-01", "window": { "start": { "local": "1977-05-01T12:25:39+08:00", "utc": "1977-05-01T04:25:39Z", "ms": 231308739106.05026 }, "end": { "local": "1977-05-01T13:13:39+08:00", "utc": "1977-05-01T05:13:39Z", "ms": 231311619106.05026 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 08:52 on Sat 30 Apr to 06:41 on Sun 1 May.", "fact": "1977-04-30T00:52:18Z → 1977-04-30T22:40:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 30th, 12:26–13:14 on the 1st.", "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 30th and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12809 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Zunyi, 1977: Saturday 30 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rukmini-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-04-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-04-30", "confidence": "determinate" } ], "quote": "In Zunyi, Rukmiṇī Dvādaśī 1977 falls on Saturday 30 April. Dvādaśī runs from 08:52 on Sat 30 Apr to 06:41 on Sun 1 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/pradosha-vrata?on=1977-05-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25278, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-05-01T06:40:45+08:00", "utc": "1977-04-30T22:40:45Z", "ms": 231288044889.4475 }, "end": { "local": "1977-05-02T03:53:17+08:00", "utc": "1977-05-01T19:53:17Z", "ms": 231364397261.32788 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-01T06:40:45+08:00", "utc": "1977-04-30T22:40:45Z", "ms": 231288044889.4475 }, "end": { "local": "1977-05-02T03:53:17+08:00", "utc": "1977-05-01T19:53:17Z", "ms": 231364397261.32788 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-04-30", "window": { "start": { "local": "1977-04-30T19:25:09+08:00", "utc": "1977-04-30T11:25:09Z", "ms": 231247508930.427 }, "end": { "local": "1977-04-30T20:51:36+08:00", "utc": "1977-04-30T12:51:36Z", "ms": 231252696413.68848 } }, "covered_min": 0, "window_min": 86, "qualifies": false }, { "local_date": "1977-05-01", "window": { "start": { "local": "1977-05-01T19:25:43+08:00", "utc": "1977-05-01T11:25:43Z", "ms": 231333943157.21246 }, "end": { "local": "1977-05-01T20:52:00+08:00", "utc": "1977-05-01T12:52:00Z", "ms": 231339119544.4552 } }, "covered_min": 86, "window_min": 86, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:41 on Sun 1 May to 03:53 on Mon 2 May.", "fact": "1977-04-30T22:40:45Z → 1977-05-01T19:53:17Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:25–20:52 on the 30th, 19:26–20:52 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 86 minutes on the 30th and 86 of 86 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25278 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Sunday 1 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": "1977-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-01", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Sunday 1 May. Trayodaśī runs from 06:41 on Sun 1 May to 03:53 on Mon 2 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-05-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13527, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-05-02T03:53:17+08:00", "utc": "1977-05-01T19:53:17Z", "ms": 231364397261.32788 }, "end": { "local": "1977-05-03T00:37:50+08:00", "utc": "1977-05-02T16:37:50Z", "ms": 231439069684.58728 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-02T03:53:17+08:00", "utc": "1977-05-01T19:53:17Z", "ms": 231364397261.32788 }, "end": { "local": "1977-05-03T00:37:50+08:00", "utc": "1977-05-02T16:37:50Z", "ms": 231439069684.58728 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-05-01", "window": { "start": { "local": "1977-05-01T19:25:43+08:00", "utc": "1977-05-01T11:25:43Z", "ms": 231333943157.21246 }, "end": { "local": "1977-05-01T20:52:00+08:00", "utc": "1977-05-01T12:52:00Z", "ms": 231339119544.4552 } }, "covered_min": 0, "window_min": 86, "qualifies": false }, { "local_date": "1977-05-02", "window": { "start": { "local": "1977-05-02T19:26:17+08:00", "utc": "1977-05-02T11:26:17Z", "ms": 231420377480.93884 }, "end": { "local": "1977-05-02T20:52:23+08:00", "utc": "1977-05-02T12:52:23Z", "ms": 231425542888.25754 } }, "covered_min": 86, "window_min": 86, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:53 on Mon 2 May to 00:38 on Tue 3 May.", "fact": "1977-05-01T19:53:17Z → 1977-05-02T16:37:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:26–20:52 on the 1st, 19:26–20:52 on the 2nd.", "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 1st and 86 of 86 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 13527 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Zunyi, 1977: Monday 2 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": "1977-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-02", "confidence": "determinate" } ], "quote": "In Zunyi, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1977 falls on Monday 2 May. Caturdaśī runs from 03:53 on Mon 2 May to 00:38 on Tue 3 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28199, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-05-03T00:37:50+08:00", "utc": "1977-05-02T16:37:50Z", "ms": 231439069684.58728 }, "end": { "local": "1977-05-03T21:03:24+08:00", "utc": "1977-05-03T13:03:24Z", "ms": 231512604050.78696 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-03T00:37:50+08:00", "utc": "1977-05-02T16:37:50Z", "ms": 231439069684.58728 }, "end": { "local": "1977-05-03T21:03:24+08:00", "utc": "1977-05-03T13:03:24Z", "ms": 231512604050.78696 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-05-02", "window": { "start": { "local": "1977-05-02T12:25:32+08:00", "utc": "1977-05-02T04:25:32Z", "ms": 231395131771.2359 }, "end": { "local": "1977-05-02T13:13:32+08:00", "utc": "1977-05-02T05:13:32Z", "ms": 231398011771.2359 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-05-03", "window": { "start": { "local": "1977-05-03T12:25:25+08:00", "utc": "1977-05-03T04:25:25Z", "ms": 231481524967.65396 }, "end": { "local": "1977-05-03T13:13:25+08:00", "utc": "1977-05-03T05:13:25Z", "ms": 231484404967.65396 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:38 on Tue 3 May to 21:03 on Tue 3 May.", "fact": "1977-05-02T16:37:50Z → 1977-05-03T13:03:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 2nd, 12:25–13:13 on the 3rd.", "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 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 28199 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Zunyi, 1977: Tuesday 3 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": "1977-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-03", "confidence": "determinate" } ], "quote": "In Zunyi, Buddha Pūrṇimā 1977 falls on Tuesday 3 May. Pūrṇimā runs from 00:38 on Tue 3 May to 21:03 on Tue 3 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28199, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-05-03T00:37:50+08:00", "utc": "1977-05-02T16:37:50Z", "ms": 231439069684.58728 }, "end": { "local": "1977-05-03T21:03:24+08:00", "utc": "1977-05-03T13:03:24Z", "ms": 231512604050.78696 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-03T00:37:50+08:00", "utc": "1977-05-02T16:37:50Z", "ms": 231439069684.58728 }, "end": { "local": "1977-05-03T21:03:24+08:00", "utc": "1977-05-03T13:03:24Z", "ms": 231512604050.78696 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-05-02", "window": { "start": { "local": "1977-05-02T12:25:32+08:00", "utc": "1977-05-02T04:25:32Z", "ms": 231395131771.2359 }, "end": { "local": "1977-05-02T13:13:32+08:00", "utc": "1977-05-02T05:13:32Z", "ms": 231398011771.2359 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-05-03", "window": { "start": { "local": "1977-05-03T12:25:25+08:00", "utc": "1977-05-03T04:25:25Z", "ms": 231481524967.65396 }, "end": { "local": "1977-05-03T13:13:25+08:00", "utc": "1977-05-03T05:13:25Z", "ms": 231484404967.65396 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:38 on Tue 3 May to 21:03 on Tue 3 May.", "fact": "1977-05-02T16:37:50Z → 1977-05-03T13:03:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 2nd, 12:25–13:13 on the 3rd.", "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 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 28199 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Zunyi, 1977: Tuesday 3 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": "1977-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-03", "confidence": "determinate" } ], "quote": "In Zunyi, Sampat Gaurī Vrata 1977 falls on Tuesday 3 May. Pūrṇimā runs from 00:38 on Tue 3 May to 21:03 on Tue 3 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-05-06", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29831, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-05-06T10:04:18+08:00", "utc": "1977-05-06T02:04:18Z", "ms": 231732258088.97314 }, "end": { "local": "1977-05-07T06:52:01+08:00", "utc": "1977-05-06T22:52:01Z", "ms": 231807121254.93347 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-06T10:04:18+08:00", "utc": "1977-05-06T02:04:18Z", "ms": 231732258088.97314 }, "end": { "local": "1977-05-07T06:52:01+08:00", "utc": "1977-05-06T22:52:01Z", "ms": 231807121254.93347 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-05-05", "window": { "start": { "local": "1977-05-05T21:32:50+08:00", "utc": "1977-05-05T13:32:50Z", "ms": 231687170352.83514 }, "end": { "local": "1977-05-05T21:32:50+08:00", "utc": "1977-05-05T13:32:50Z", "ms": 231687170352.83514 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-05-06", "window": { "start": { "local": "1977-05-06T22:34:50+08:00", "utc": "1977-05-06T14:34:50Z", "ms": 231777290362.16956 }, "end": { "local": "1977-05-06T22:34:50+08:00", "utc": "1977-05-06T14:34:50Z", "ms": 231777290362.16956 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:04 on Fri 6 May to 06:52 on Sat 7 May.", "fact": "1977-05-06T02:04:18Z → 1977-05-06T22:52:01Z" }, { "step": "kaala", "text": "Moonrise is at 21:33 on the 5th and 22:35 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29831 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Friday 6 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": "1977-05-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-06", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Friday 6 May. Caturthī runs from 10:04 on Fri 6 May to 06:52 on Sat 7 May and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-05-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ekadashi?on=1977-05-13", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14779, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-05-13T00:38:32+08:00", "utc": "1977-05-12T16:38:32Z", "ms": 232303112464.0505 }, "end": { "local": "1977-05-14T01:58:01+08:00", "utc": "1977-05-13T17:58:01Z", "ms": 232394281323.5296 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-13T00:38:32+08:00", "utc": "1977-05-12T16:38:32Z", "ms": 232303112464.0505 }, "end": { "local": "1977-05-14T01:58:01+08:00", "utc": "1977-05-13T17:58:01Z", "ms": 232394281323.5296 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-05-13", "window": { "start": { "local": "1977-05-13T06:04:56+08:00", "utc": "1977-05-12T22:04:56Z", "ms": 232322696310.8588 }, "end": { "local": "1977-05-13T06:04:56+08:00", "utc": "1977-05-12T22:04:56Z", "ms": 232322696310.8588 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-05-14", "window": { "start": { "local": "1977-05-14T06:04:20+08:00", "utc": "1977-05-13T22:04:20Z", "ms": 232409060443.70016 }, "end": { "local": "1977-05-14T06:04:20+08:00", "utc": "1977-05-13T22:04:20Z", "ms": 232409060443.70016 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:39 on Fri 13 May to 01:58 on Sat 14 May.", "fact": "1977-05-12T16:38:32Z → 1977-05-13T17:58:01Z" }, { "step": "kaala", "text": "Sunrise is at 06:05 on the 13th and 06:04 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 13th and is not on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14779 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Zunyi, 1977: Friday 13 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": "1977-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-13", "confidence": "determinate" } ], "quote": "In Zunyi, Aparā Ekādaśī 1977 falls on Friday 13 May. Ekādaśī runs from 00:39 on Fri 13 May to 01:58 on Sat 14 May and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-05-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-05-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24554, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-05-15T03:46:33+08:00", "utc": "1977-05-14T19:46:33Z", "ms": 232487192879.2678 }, "end": { "local": "1977-05-16T05:56:30+08:00", "utc": "1977-05-15T21:56:30Z", "ms": 232581389627.3304 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-15T03:46:33+08:00", "utc": "1977-05-14T19:46:33Z", "ms": 232487192879.2678 }, "end": { "local": "1977-05-16T05:56:30+08:00", "utc": "1977-05-15T21:56:30Z", "ms": 232581389627.3304 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-05-14", "window": { "start": { "local": "1977-05-14T19:33:15+08:00", "utc": "1977-05-14T11:33:15Z", "ms": 232457594828.24255 }, "end": { "local": "1977-05-14T20:57:19+08:00", "utc": "1977-05-14T12:57:19Z", "ms": 232462638956.0486 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "1977-05-15", "window": { "start": { "local": "1977-05-15T19:33:50+08:00", "utc": "1977-05-15T11:33:50Z", "ms": 232544029682.32794 }, "end": { "local": "1977-05-15T20:57:45+08:00", "utc": "1977-05-15T12:57:45Z", "ms": 232549064704.94614 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:47 on Sun 15 May to 05:56 on Mon 16 May.", "fact": "1977-05-14T19:46:33Z → 1977-05-15T21:56:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:33–20:57 on the 14th, 19:34–20:58 on the 15th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 84 minutes on the 14th and 84 of 84 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24554 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Sunday 15 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": "1977-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-15", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Sunday 15 May. Trayodaśī runs from 03:47 on Sun 15 May to 05:56 on Mon 16 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-05-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shivaratri?on=1977-05-16", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17039, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-05-16T05:56:30+08:00", "utc": "1977-05-15T21:56:30Z", "ms": 232581389627.3304 }, "end": { "local": "1977-05-17T08:20:23+08:00", "utc": "1977-05-17T00:20:23Z", "ms": 232676423027.14798 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-16T05:56:30+08:00", "utc": "1977-05-15T21:56:30Z", "ms": 232581389627.3304 }, "end": { "local": "1977-05-17T08:20:23+08:00", "utc": "1977-05-17T00:20:23Z", "ms": 232676423027.14798 } }, "kaala": "nishita", "days": [ { "local_date": "1977-05-15", "window": { "start": { "local": "1977-05-16T00:24:31+08:00", "utc": "1977-05-15T16:24:31Z", "ms": 232561471017.14615 }, "end": { "local": "1977-05-16T01:12:31+08:00", "utc": "1977-05-15T17:12:31Z", "ms": 232564351017.14615 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-05-16", "window": { "start": { "local": "1977-05-17T00:24:32+08:00", "utc": "1977-05-16T16:24:32Z", "ms": 232647872304.51642 }, "end": { "local": "1977-05-17T01:12:32+08:00", "utc": "1977-05-16T17:12:32Z", "ms": 232650752304.51642 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:56 on Mon 16 May to 08:20 on Tue 17 May.", "fact": "1977-05-15T21:56:30Z → 1977-05-17T00:20:23Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:25–01:13 on the 15th, 00:25–01:13 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17039 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Monday 16 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": "1977-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-16", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Monday 16 May. Caturdaśī runs from 05:56 on Mon 16 May to 08:20 on Tue 17 May and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-05-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9446, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1977-05-20T15:50:23+08:00", "utc": "1977-05-20T07:50:23Z", "ms": 232962623047.37213 }, "end": { "local": "1977-05-21T18:06:52+08:00", "utc": "1977-05-21T10:06:52Z", "ms": 233057212123.41006 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-20T15:50:23+08:00", "utc": "1977-05-20T07:50:23Z", "ms": 232962623047.37213 }, "end": { "local": "1977-05-21T18:06:52+08:00", "utc": "1977-05-21T10:06:52Z", "ms": 233057212123.41006 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-05-20", "window": { "start": { "local": "1977-05-20T12:24:57+08:00", "utc": "1977-05-20T04:24:57Z", "ms": 232950296664.94318 }, "end": { "local": "1977-05-20T13:12:57+08:00", "utc": "1977-05-20T05:12:57Z", "ms": 232953176664.94318 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-05-21", "window": { "start": { "local": "1977-05-21T12:25:00+08:00", "utc": "1977-05-21T04:25:00Z", "ms": 233036700079.2556 }, "end": { "local": "1977-05-21T13:13:00+08:00", "utc": "1977-05-21T05:13:00Z", "ms": 233039580079.2556 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 15:50 on Fri 20 May to 18:07 on Sat 21 May.", "fact": "1977-05-20T07:50:23Z → 1977-05-21T10:06:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 20th, 12:25–13:13 on the 21st.", "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 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 9446 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Zunyi, 1977: Saturday 21 May.", "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": "1977-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-21", "confidence": "determinate" } ], "quote": "In Zunyi, Rambhā Tṛtīyā 1977 falls on Saturday 21 May. Tṛtīyā runs from 15:50 on Fri 20 May to 18:07 on Sat 21 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-05-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17632, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-05-21T18:06:52+08:00", "utc": "1977-05-21T10:06:52Z", "ms": 233057212123.41006 }, "end": { "local": "1977-05-22T20:06:36+08:00", "utc": "1977-05-22T12:06:36Z", "ms": 233150796260.03668 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-21T18:06:52+08:00", "utc": "1977-05-21T10:06:52Z", "ms": 233057212123.41006 }, "end": { "local": "1977-05-22T20:06:36+08:00", "utc": "1977-05-22T12:06:36Z", "ms": 233150796260.03668 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-05-21", "window": { "start": { "local": "1977-05-21T12:25:00+08:00", "utc": "1977-05-21T04:25:00Z", "ms": 233036700079.2556 }, "end": { "local": "1977-05-21T13:13:00+08:00", "utc": "1977-05-21T05:13:00Z", "ms": 233039580079.2556 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-05-22", "window": { "start": { "local": "1977-05-22T12:25:04+08:00", "utc": "1977-05-22T04:25:04Z", "ms": 233123104012.94098 }, "end": { "local": "1977-05-22T13:13:04+08:00", "utc": "1977-05-22T05:13:04Z", "ms": 233125984012.94098 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:07 on Sat 21 May to 20:07 on Sun 22 May.", "fact": "1977-05-21T10:06:52Z → 1977-05-22T12:06:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 21st, 12:25–13:13 on the 22nd.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17632 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1977: Sunday 22 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": "1977-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-22", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1977 falls on Sunday 22 May. Caturthī runs from 18:07 on Sat 21 May to 20:07 on Sun 22 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-05-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30594, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1977-05-23T21:43:02+08:00", "utc": "1977-05-23T13:43:02Z", "ms": 233242982090.022 }, "end": { "local": "1977-05-24T22:49:31+08:00", "utc": "1977-05-24T14:49:31Z", "ms": 233333370593.20493 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-23T21:43:02+08:00", "utc": "1977-05-23T13:43:02Z", "ms": 233242982090.022 }, "end": { "local": "1977-05-24T22:49:31+08:00", "utc": "1977-05-24T14:49:31Z", "ms": 233333370593.20493 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-05-23", "window": { "start": { "local": "1977-05-23T12:25:08+08:00", "utc": "1977-05-23T04:25:08Z", "ms": 233209508454.73282 }, "end": { "local": "1977-05-23T13:13:08+08:00", "utc": "1977-05-23T05:13:08Z", "ms": 233212388454.73282 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-05-24", "window": { "start": { "local": "1977-05-24T12:25:13+08:00", "utc": "1977-05-24T04:25:13Z", "ms": 233295913392.90662 }, "end": { "local": "1977-05-24T13:13:13+08:00", "utc": "1977-05-24T05:13:13Z", "ms": 233298793392.90662 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 21:43 on Mon 23 May to 22:50 on Tue 24 May.", "fact": "1977-05-23T13:43:02Z → 1977-05-24T14:49:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 23rd, 12:25–13:13 on the 24th.", "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 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30594 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Zunyi, 1977: Tuesday 24 May.", "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": "1977-05-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-24", "confidence": "determinate" } ], "quote": "In Zunyi, Araṇya Gaurī Vrata 1977 falls on Tuesday 24 May. Ṣaṣṭhī runs from 21:43 on Mon 23 May to 22:50 on Tue 24 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30594, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1977-05-23T21:43:02+08:00", "utc": "1977-05-23T13:43:02Z", "ms": 233242982090.022 }, "end": { "local": "1977-05-24T22:49:31+08:00", "utc": "1977-05-24T14:49:31Z", "ms": 233333370593.20493 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-23T21:43:02+08:00", "utc": "1977-05-23T13:43:02Z", "ms": 233242982090.022 }, "end": { "local": "1977-05-24T22:49:31+08:00", "utc": "1977-05-24T14:49:31Z", "ms": 233333370593.20493 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-05-23", "window": { "start": { "local": "1977-05-23T12:25:08+08:00", "utc": "1977-05-23T04:25:08Z", "ms": 233209508454.73282 }, "end": { "local": "1977-05-23T13:13:08+08:00", "utc": "1977-05-23T05:13:08Z", "ms": 233212388454.73282 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-05-24", "window": { "start": { "local": "1977-05-24T12:25:13+08:00", "utc": "1977-05-24T04:25:13Z", "ms": 233295913392.90662 }, "end": { "local": "1977-05-24T13:13:13+08:00", "utc": "1977-05-24T05:13:13Z", "ms": 233298793392.90662 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 21:43 on Mon 23 May to 22:50 on Tue 24 May.", "fact": "1977-05-23T13:43:02Z → 1977-05-24T14:49:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 23rd, 12:25–13:13 on the 24th.", "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 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30594 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Zunyi, 1977: Tuesday 24 May.", "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": "1977-05-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-24", "confidence": "determinate" } ], "quote": "In Zunyi, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1977 falls on Tuesday 24 May. Ṣaṣṭhī runs from 21:43 on Mon 23 May to 22:50 on Tue 24 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-05-29", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33541, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-05-28T20:38:52+08:00", "utc": "1977-05-28T12:38:52Z", "ms": 233671131626.17813 }, "end": { "local": "1977-05-29T18:21:00+08:00", "utc": "1977-05-29T10:21:00Z", "ms": 233749259735.1009 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-28T20:38:52+08:00", "utc": "1977-05-28T12:38:52Z", "ms": 233671131626.17813 }, "end": { "local": "1977-05-29T18:21:00+08:00", "utc": "1977-05-29T10:21:00Z", "ms": 233749259735.1009 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-05-29", "window": { "start": { "local": "1977-05-29T05:57:53+08:00", "utc": "1977-05-28T21:57:53Z", "ms": 233704672732.13162 }, "end": { "local": "1977-05-29T05:57:53+08:00", "utc": "1977-05-28T21:57:53Z", "ms": 233704672732.13162 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-05-30", "window": { "start": { "local": "1977-05-30T05:57:37+08:00", "utc": "1977-05-29T21:57:37Z", "ms": 233791057196.84833 }, "end": { "local": "1977-05-30T05:57:37+08:00", "utc": "1977-05-29T21:57:37Z", "ms": 233791057196.84833 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:39 on Sat 28 May to 18:21 on Sun 29 May.", "fact": "1977-05-28T12:38:52Z → 1977-05-29T10:21:00Z" }, { "step": "kaala", "text": "Sunrise is at 05:58 on the 29th and 05:58 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33541 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Zunyi, 1977: Sunday 29 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": "1977-05-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-29", "confidence": "determinate" } ], "quote": "In Zunyi, Nirjalā Ekādaśī 1977 falls on Sunday 29 May. Ekādaśī runs from 20:39 on Sat 28 May to 18:21 on Sun 29 May and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-05-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8012, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1977-05-29T18:21:00+08:00", "utc": "1977-05-29T10:21:00Z", "ms": 233749259735.1009 }, "end": { "local": "1977-05-30T15:27:24+08:00", "utc": "1977-05-30T07:27:24Z", "ms": 233825244377.8269 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-29T18:21:00+08:00", "utc": "1977-05-29T10:21:00Z", "ms": 233749259735.1009 }, "end": { "local": "1977-05-30T15:27:24+08:00", "utc": "1977-05-30T07:27:24Z", "ms": 233825244377.8269 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-05-29", "window": { "start": { "local": "1977-05-29T12:25:45+08:00", "utc": "1977-05-29T04:25:45Z", "ms": 233727945102.6718 }, "end": { "local": "1977-05-29T13:13:45+08:00", "utc": "1977-05-29T05:13:45Z", "ms": 233730825102.6718 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-05-30", "window": { "start": { "local": "1977-05-30T12:25:53+08:00", "utc": "1977-05-30T04:25:53Z", "ms": 233814352764.0793 }, "end": { "local": "1977-05-30T13:13:53+08:00", "utc": "1977-05-30T05:13:53Z", "ms": 233817232764.0793 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 18:21 on Sun 29 May to 15:27 on Mon 30 May.", "fact": "1977-05-29T10:21:00Z → 1977-05-30T07:27:24Z" }, { "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": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8012 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Zunyi, 1977: Monday 30 May.", "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": "1977-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-30", "confidence": "determinate" } ], "quote": "In Zunyi, Śrī Rāma Dvādaśī 1977 falls on Monday 30 May. Dvādaśī runs from 18:21 on Sun 29 May to 15:27 on Mon 30 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/pradosha-vrata?on=1977-05-30", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15284, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-05-30T15:27:24+08:00", "utc": "1977-05-30T07:27:24Z", "ms": 233825244377.8269 }, "end": { "local": "1977-05-31T12:05:12+08:00", "utc": "1977-05-31T04:05:12Z", "ms": 233899512190.24686 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-05-30T15:27:24+08:00", "utc": "1977-05-30T07:27:24Z", "ms": 233825244377.8269 }, "end": { "local": "1977-05-31T12:05:12+08:00", "utc": "1977-05-31T04:05:12Z", "ms": 233899512190.24686 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-05-30", "window": { "start": { "local": "1977-05-30T19:42:08+08:00", "utc": "1977-05-30T11:42:08Z", "ms": 233840528331.3103 }, "end": { "local": "1977-05-30T21:04:10+08:00", "utc": "1977-05-30T13:04:10Z", "ms": 233845450283.80325 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "1977-05-31", "window": { "start": { "local": "1977-05-31T19:42:39+08:00", "utc": "1977-05-31T11:42:39Z", "ms": 233926958702.9254 }, "end": { "local": "1977-05-31T21:04:35+08:00", "utc": "1977-05-31T13:04:35Z", "ms": 233931874885.20267 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:27 on Mon 30 May to 12:05 on Tue 31 May.", "fact": "1977-05-30T07:27:24Z → 1977-05-31T04:05:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:42–21:04 on the 30th, 19:43–21:05 on the 31st.", "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 30th and 0 of 82 on the 31st.", "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 15284 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Monday 30 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": "1977-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-05-30", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Monday 30 May. Trayodaśī runs from 15:27 on Mon 30 May to 12:05 on Tue 31 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-05-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26753, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-06-01T08:23:05+08:00", "utc": "1977-06-01T00:23:05Z", "ms": 233972584870.2116 }, "end": { "local": "1977-06-02T04:30:52+08:00", "utc": "1977-06-01T20:30:52Z", "ms": 234045051954.9401 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-01T08:23:05+08:00", "utc": "1977-06-01T00:23:05Z", "ms": 233972584870.2116 }, "end": { "local": "1977-06-02T04:30:52+08:00", "utc": "1977-06-01T20:30:52Z", "ms": 234045051954.9401 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-05-31", "window": { "start": { "local": "1977-05-31T19:42:39+08:00", "utc": "1977-05-31T11:42:39Z", "ms": 233926958702.9254 }, "end": { "local": "1977-05-31T21:04:35+08:00", "utc": "1977-05-31T13:04:35Z", "ms": 233931874885.20267 } }, "covered_min": 0, "window_min": 82, "qualifies": false }, { "local_date": "1977-06-01", "window": { "start": { "local": "1977-06-01T19:43:09+08:00", "utc": "1977-06-01T11:43:09Z", "ms": 234013388563.46088 }, "end": { "local": "1977-06-01T21:04:59+08:00", "utc": "1977-06-01T13:04:59Z", "ms": 234018299219.5767 } }, "covered_min": 82, "window_min": 82, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:23 on Wed 1 Jun to 04:31 on Thu 2 Jun.", "fact": "1977-06-01T00:23:05Z → 1977-06-01T20:30:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:43–21:05 on the 31st, 19:43–21:05 on the 1st.", "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 82 minutes on the 31st and 82 of 82 on the 1st.", "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 26753 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Zunyi, 1977: Wednesday 1 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": "1977-06-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-01", "confidence": "determinate" } ], "quote": "In Zunyi, Vaṭa Sāvitrī Vrata 1977 falls on Wednesday 1 June. Pūrṇimā runs from 08:23 on Wed 1 Jun to 04:31 on Thu 2 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-06-04", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16325, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-06-04T17:40:10+08:00", "utc": "1977-06-04T09:40:10Z", "ms": 234265209546.02908 }, "end": { "local": "1977-06-05T14:53:46+08:00", "utc": "1977-06-05T06:53:46Z", "ms": 234341625548.03992 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-04T17:40:10+08:00", "utc": "1977-06-04T09:40:10Z", "ms": 234265209546.02908 }, "end": { "local": "1977-06-05T14:53:46+08:00", "utc": "1977-06-05T06:53:46Z", "ms": 234341625548.03992 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-06-04", "window": { "start": { "local": "1977-06-04T22:12:15+08:00", "utc": "1977-06-04T14:12:15Z", "ms": 234281534905.2947 }, "end": { "local": "1977-06-04T22:12:15+08:00", "utc": "1977-06-04T14:12:15Z", "ms": 234281534905.2947 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-06-05", "window": { "start": { "local": "1977-06-05T23:01:50+08:00", "utc": "1977-06-05T15:01:50Z", "ms": 234370910484.98883 }, "end": { "local": "1977-06-05T23:01:50+08:00", "utc": "1977-06-05T15:01:50Z", "ms": 234370910484.98883 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:40 on Sat 4 Jun to 14:54 on Sun 5 Jun.", "fact": "1977-06-04T09:40:10Z → 1977-06-05T06:53:46Z" }, { "step": "kaala", "text": "Moonrise is at 22:12 on the 4th and 23:02 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16325 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Saturday 4 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": "1977-06-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-04", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Saturday 4 June. Caturthī runs from 17:40 on Sat 4 Jun to 14:54 on Sun 5 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-06-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ekadashi?on=1977-06-12", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30110, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-06-11T14:18:04+08:00", "utc": "1977-06-11T06:18:04Z", "ms": 234857883501.53113 }, "end": { "local": "1977-06-12T16:30:42+08:00", "utc": "1977-06-12T08:30:42Z", "ms": 234952241994.3239 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-11T14:18:04+08:00", "utc": "1977-06-11T06:18:04Z", "ms": 234857883501.53113 }, "end": { "local": "1977-06-12T16:30:42+08:00", "utc": "1977-06-12T08:30:42Z", "ms": 234952241994.3239 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-06-11", "window": { "start": { "local": "1977-06-11T05:56:14+08:00", "utc": "1977-06-10T21:56:14Z", "ms": 234827773545.01056 }, "end": { "local": "1977-06-11T05:56:14+08:00", "utc": "1977-06-10T21:56:14Z", "ms": 234827773545.01056 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-06-12", "window": { "start": { "local": "1977-06-12T05:56:15+08:00", "utc": "1977-06-11T21:56:15Z", "ms": 234914175027.2696 }, "end": { "local": "1977-06-12T05:56:15+08:00", "utc": "1977-06-11T21:56:15Z", "ms": 234914175027.2696 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:18 on Sat 11 Jun to 16:31 on Sun 12 Jun.", "fact": "1977-06-11T06:18:04Z → 1977-06-12T08:30:42Z" }, { "step": "kaala", "text": "Sunrise is at 05:56 on the 11th and 05:56 on the 12th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 11th and is on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30110 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Zunyi, 1977: Sunday 12 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": "1977-06-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-12", "confidence": "determinate" } ], "quote": "In Zunyi, Yoginī Ekādaśī 1977 falls on Sunday 12 June. Ekādaśī runs from 14:18 on Sat 11 Jun to 16:31 on Sun 12 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-06-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-06-13", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-13", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1368, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-06-13T18:59:00+08:00", "utc": "1977-06-13T10:59:00Z", "ms": 235047540318.36404 }, "end": { "local": "1977-06-14T21:32:28+08:00", "utc": "1977-06-14T13:32:28Z", "ms": 235143148410.18277 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-13T18:59:00+08:00", "utc": "1977-06-13T10:59:00Z", "ms": 235047540318.36404 }, "end": { "local": "1977-06-14T21:32:28+08:00", "utc": "1977-06-14T13:32:28Z", "ms": 235143148410.18277 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-06-13", "window": { "start": { "local": "1977-06-13T19:48:18+08:00", "utc": "1977-06-13T11:48:18Z", "ms": 235050497509.78568 }, "end": { "local": "1977-06-13T21:09:22+08:00", "utc": "1977-06-13T13:09:22Z", "ms": 235055362071.16437 } }, "covered_min": 81, "window_min": 81, "qualifies": true }, { "local_date": "1977-06-14", "window": { "start": { "local": "1977-06-14T19:48:38+08:00", "utc": "1977-06-14T11:48:38Z", "ms": 235136918249.7638 }, "end": { "local": "1977-06-14T21:09:41+08:00", "utc": "1977-06-14T13:09:41Z", "ms": 235141780735.57382 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:59 on Mon 13 Jun to 21:32 on Tue 14 Jun.", "fact": "1977-06-13T10:59:00Z → 1977-06-14T13:32:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:48–21:09 on the 13th, 19:49–21:10 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 81 of 81 minutes on the 13th and 81 of 81 on the 14th.", "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 1368 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Monday 13 June.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-06-13", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-13", "confidence": "boundary" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Monday 13 June. Trayodaśī runs from 18:59 on Mon 13 Jun to 21:32 on Tue 14 Jun and covers all of pradoṣa that evening. It also reaches the next evening for 81 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/zunyi/festivals/1977/pradosha-vrata?on=1977-06-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shivaratri?on=1977-06-14", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1576, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-06-14T21:32:28+08:00", "utc": "1977-06-14T13:32:28Z", "ms": 235143148410.18277 }, "end": { "local": "1977-06-16T00:02:30+08:00", "utc": "1977-06-15T16:02:30Z", "ms": 235238549894.63098 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-14T21:32:28+08:00", "utc": "1977-06-14T13:32:28Z", "ms": 235143148410.18277 }, "end": { "local": "1977-06-16T00:02:30+08:00", "utc": "1977-06-15T16:02:30Z", "ms": 235238549894.63098 } }, "kaala": "nishita", "days": [ { "local_date": "1977-06-14", "window": { "start": { "local": "1977-06-15T00:28:33+08:00", "utc": "1977-06-14T16:28:33Z", "ms": 235153712571.5514 }, "end": { "local": "1977-06-15T01:16:33+08:00", "utc": "1977-06-14T17:16:33Z", "ms": 235156592571.5514 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-06-15", "window": { "start": { "local": "1977-06-16T00:28:46+08:00", "utc": "1977-06-15T16:28:46Z", "ms": 235240125665.58594 }, "end": { "local": "1977-06-16T01:16:46+08:00", "utc": "1977-06-15T17:16:46Z", "ms": 235243005665.58594 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:32 on Tue 14 Jun to 00:02 on Thu 16 Jun.", "fact": "1977-06-14T13:32:28Z → 1977-06-15T16:02:30Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:29–01:17 on the 14th, 00:29–01:17 on the 15th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1576 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Tuesday 14 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": "1977-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-14", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Tuesday 14 June. Caturdaśī runs from 21:32 on Tue 14 Jun to 00:02 on Thu 16 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-06-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22350, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1977-06-18T04:28:38+08:00", "utc": "1977-06-17T20:28:38Z", "ms": 235427318120.44266 }, "end": { "local": "1977-06-19T06:17:03+08:00", "utc": "1977-06-18T22:17:03Z", "ms": 235520223426.19092 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-18T04:28:38+08:00", "utc": "1977-06-17T20:28:38Z", "ms": 235427318120.44266 }, "end": { "local": "1977-06-19T06:17:03+08:00", "utc": "1977-06-18T22:17:03Z", "ms": 235520223426.19092 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-06-18", "window": { "start": { "local": "1977-06-18T12:29:21+08:00", "utc": "1977-06-18T04:29:21Z", "ms": 235456160605.52454 }, "end": { "local": "1977-06-18T13:17:21+08:00", "utc": "1977-06-18T05:17:21Z", "ms": 235459040605.52454 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-06-19", "window": { "start": { "local": "1977-06-19T12:29:33+08:00", "utc": "1977-06-19T04:29:33Z", "ms": 235542573432.0667 }, "end": { "local": "1977-06-19T13:17:33+08:00", "utc": "1977-06-19T05:17:33Z", "ms": 235545453432.0667 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 04:29 on Sat 18 Jun to 06:17 on Sun 19 Jun.", "fact": "1977-06-17T20:28:38Z → 1977-06-18T22:17:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 18th, 12:30–13:18 on the 19th.", "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 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22350 s" }, { "step": "ruling", "text": "Rathayātrā, Zunyi, 1977: Saturday 18 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": "1977-06-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-18", "confidence": "determinate" } ], "quote": "In Zunyi, Rathayātrā 1977 falls on Saturday 18 June. Dvitīyā runs from 04:29 on Sat 18 Jun to 06:17 on Sun 19 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-06-20", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13198, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-06-20T07:45:10+08:00", "utc": "1977-06-19T23:45:10Z", "ms": 235611910445.91095 }, "end": { "local": "1977-06-21T08:50:01+08:00", "utc": "1977-06-21T00:50:01Z", "ms": 235702201293.72964 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-20T07:45:10+08:00", "utc": "1977-06-19T23:45:10Z", "ms": 235611910445.91095 }, "end": { "local": "1977-06-21T08:50:01+08:00", "utc": "1977-06-21T00:50:01Z", "ms": 235702201293.72964 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-06-20", "window": { "start": { "local": "1977-06-20T12:29:46+08:00", "utc": "1977-06-20T04:29:46Z", "ms": 235628986273.24133 }, "end": { "local": "1977-06-20T13:17:46+08:00", "utc": "1977-06-20T05:17:46Z", "ms": 235631866273.24133 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-06-21", "window": { "start": { "local": "1977-06-21T12:29:59+08:00", "utc": "1977-06-21T04:29:59Z", "ms": 235715399102.14282 }, "end": { "local": "1977-06-21T13:17:59+08:00", "utc": "1977-06-21T05:17:59Z", "ms": 235718279102.14282 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:45 on Mon 20 Jun to 08:50 on Tue 21 Jun.", "fact": "1977-06-19T23:45:10Z → 1977-06-21T00:50:01Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 20th, 12:30–13:18 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13198 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1977: Monday 20 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": "1977-06-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-20", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1977 falls on Monday 20 June. Caturthī runs from 07:45 on Mon 20 Jun to 08:50 on Tue 21 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-06-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10920, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1977-06-21T08:50:01+08:00", "utc": "1977-06-21T00:50:01Z", "ms": 235702201293.72964 }, "end": { "local": "1977-06-22T09:28:12+08:00", "utc": "1977-06-22T01:28:12Z", "ms": 235790892317.92645 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-21T08:50:01+08:00", "utc": "1977-06-21T00:50:01Z", "ms": 235702201293.72964 }, "end": { "local": "1977-06-22T09:28:12+08:00", "utc": "1977-06-22T01:28:12Z", "ms": 235790892317.92645 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-06-21", "window": { "start": { "local": "1977-06-21T12:29:59+08:00", "utc": "1977-06-21T04:29:59Z", "ms": 235715399102.14282 }, "end": { "local": "1977-06-21T13:17:59+08:00", "utc": "1977-06-21T05:17:59Z", "ms": 235718279102.14282 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-06-22", "window": { "start": { "local": "1977-06-22T12:30:12+08:00", "utc": "1977-06-22T04:30:12Z", "ms": 235801811892.17255 }, "end": { "local": "1977-06-22T13:18:12+08:00", "utc": "1977-06-22T05:18:12Z", "ms": 235804691892.17255 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 08:50 on Tue 21 Jun to 09:28 on Wed 22 Jun.", "fact": "1977-06-21T00:50:01Z → 1977-06-22T01:28:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 21st, 12:30–13:18 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10920 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Zunyi, 1977: Tuesday 21 June.", "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": "1977-06-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-21", "confidence": "determinate" } ], "quote": "In Zunyi, Skanda Pañcamī 1977 falls on Tuesday 21 June. Pañcamī runs from 08:50 on Tue 21 Jun to 09:28 on Wed 22 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10461, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1977-06-23T09:36:04+08:00", "utc": "1977-06-23T01:36:04Z", "ms": 235877763553.2799 }, "end": { "local": "1977-06-24T09:10:10+08:00", "utc": "1977-06-24T01:10:10Z", "ms": 235962610003.824 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-23T09:36:04+08:00", "utc": "1977-06-23T01:36:04Z", "ms": 235877763553.2799 }, "end": { "local": "1977-06-24T09:10:10+08:00", "utc": "1977-06-24T01:10:10Z", "ms": 235962610003.824 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-06-23", "window": { "start": { "local": "1977-06-23T12:30:25+08:00", "utc": "1977-06-23T04:30:25Z", "ms": 235888224617.22153 }, "end": { "local": "1977-06-23T13:18:25+08:00", "utc": "1977-06-23T05:18:25Z", "ms": 235891104617.22153 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-06-24", "window": { "start": { "local": "1977-06-24T12:30:37+08:00", "utc": "1977-06-24T04:30:37Z", "ms": 235974637251.86707 }, "end": { "local": "1977-06-24T13:18:37+08:00", "utc": "1977-06-24T05:18:37Z", "ms": 235977517251.86707 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 09:36 on Thu 23 Jun to 09:10 on Fri 24 Jun.", "fact": "1977-06-23T01:36:04Z → 1977-06-24T01:10:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 23rd, 12:31–13:19 on the 24th.", "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 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 10461 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Zunyi, 1977: Thursday 23 June.", "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": "1977-06-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-23", "confidence": "determinate" } ], "quote": "In Zunyi, Vivasvat Saptamī 1977 falls on Thursday 23 June. Saptamī runs from 09:36 on Thu 23 Jun to 09:10 on Fri 24 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-06-27", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6276, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-06-27T04:14:19+08:00", "utc": "1977-06-26T20:14:19Z", "ms": 236204058766.80142 }, "end": { "local": "1977-06-28T01:27:39+08:00", "utc": "1977-06-27T17:27:39Z", "ms": 236280458759.00513 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-27T04:14:19+08:00", "utc": "1977-06-26T20:14:19Z", "ms": 236204058766.80142 }, "end": { "local": "1977-06-28T01:27:39+08:00", "utc": "1977-06-27T17:27:39Z", "ms": 236280458759.00513 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-06-27", "window": { "start": { "local": "1977-06-27T05:58:55+08:00", "utc": "1977-06-26T21:58:55Z", "ms": 236210334913.48605 }, "end": { "local": "1977-06-27T05:58:55+08:00", "utc": "1977-06-26T21:58:55Z", "ms": 236210334913.48605 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-06-28", "window": { "start": { "local": "1977-06-28T05:59:14+08:00", "utc": "1977-06-27T21:59:14Z", "ms": 236296753627.44174 }, "end": { "local": "1977-06-28T05:59:14+08:00", "utc": "1977-06-27T21:59:14Z", "ms": 236296753627.44174 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:14 on Mon 27 Jun to 01:28 on Tue 28 Jun.", "fact": "1977-06-26T20:14:19Z → 1977-06-27T17:27:39Z" }, { "step": "kaala", "text": "Sunrise is at 05:59 on the 27th and 05:59 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 27th and is not on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6276 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Zunyi, 1977: Monday 27 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": "1977-06-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-27", "confidence": "determinate" } ], "quote": "In Zunyi, Hariśayanī Ekādaśī 1977 falls on Monday 27 June. Ekādaśī runs from 04:14 on Mon 27 Jun to 01:28 on Tue 28 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-06-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-06-28", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-28", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3729, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-06-28T22:14:52+08:00", "utc": "1977-06-28T14:14:52Z", "ms": 236355291749.87402 }, "end": { "local": "1977-06-29T18:43:42+08:00", "utc": "1977-06-29T10:43:42Z", "ms": 236429021593.32568 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-28T22:14:52+08:00", "utc": "1977-06-28T14:14:52Z", "ms": 236355291749.87402 }, "end": { "local": "1977-06-29T18:43:42+08:00", "utc": "1977-06-29T10:43:42Z", "ms": 236429021593.32568 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-06-28", "window": { "start": { "local": "1977-06-28T19:51:39+08:00", "utc": "1977-06-28T11:51:39Z", "ms": 236346699201.31082 }, "end": { "local": "1977-06-28T21:12:42+08:00", "utc": "1977-06-28T13:12:42Z", "ms": 236351562401.23642 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "1977-06-29", "window": { "start": { "local": "1977-06-29T19:51:43+08:00", "utc": "1977-06-29T11:51:43Z", "ms": 236433103308.5426 }, "end": { "local": "1977-06-29T21:12:49+08:00", "utc": "1977-06-29T13:12:49Z", "ms": 236437968681.92154 } }, "covered_min": 0, "window_min": 81, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:15 on Tue 28 Jun to 18:44 on Wed 29 Jun.", "fact": "1977-06-28T14:14:52Z → 1977-06-29T10:43:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:52–21:13 on the 28th, 19:52–21:13 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 81 minutes on the 28th and 0 of 81 on the 29th.", "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 3729 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Tuesday 28 June.", "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": "1977-06-28", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-28", "confidence": "boundary" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Tuesday 28 June. Trayodaśī runs from 22:15 on Tue 28 Jun to 18:44 on Wed 29 Jun, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-06-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7323, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-06-30T15:03:20+08:00", "utc": "1977-06-30T07:03:20Z", "ms": 236502200302.9806 }, "end": { "local": "1977-07-01T11:24:02+08:00", "utc": "1977-07-01T03:24:02Z", "ms": 236575441591.43588 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-30T15:03:20+08:00", "utc": "1977-06-30T07:03:20Z", "ms": 236502200302.9806 }, "end": { "local": "1977-07-01T11:24:02+08:00", "utc": "1977-07-01T03:24:02Z", "ms": 236575441591.43588 } }, "kaala": "sayahna", "days": [ { "local_date": "1977-06-30", "window": { "start": { "local": "1977-06-30T17:05:24+08:00", "utc": "1977-06-30T09:05:24Z", "ms": 236509523638.20422 }, "end": { "local": "1977-06-30T19:51:46+08:00", "utc": "1977-06-30T11:51:46Z", "ms": 236519506145.5341 } }, "covered_min": 166, "window_min": 166, "qualifies": true }, { "local_date": "1977-07-01", "window": { "start": { "local": "1977-07-01T17:05:29+08:00", "utc": "1977-07-01T09:05:29Z", "ms": 236595929127.72552 }, "end": { "local": "1977-07-01T19:51:48+08:00", "utc": "1977-07-01T11:51:48Z", "ms": 236605907702.67496 } }, "covered_min": 0, "window_min": 166, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:03 on Thu 30 Jun to 11:24 on Fri 1 Jul.", "fact": "1977-06-30T07:03:20Z → 1977-07-01T03:24:02Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:05–19:52 on the 30th, 17:05–19:52 on the 1st.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 166 of 166 minutes on the 30th and 0 of 166 on the 1st.", "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 7323 s" }, { "step": "ruling", "text": "Kokilā Vrata, Zunyi, 1977: Thursday 30 June.", "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": "1977-06-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-30", "confidence": "determinate" } ], "quote": "In Zunyi, Kokilā Vrata 1977 falls on Thursday 30 June. Pūrṇimā runs from 15:03 on Thu 30 Jun to 11:24 on Fri 1 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-06-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17306, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-06-30T15:03:20+08:00", "utc": "1977-06-30T07:03:20Z", "ms": 236502200302.9806 }, "end": { "local": "1977-07-01T11:24:02+08:00", "utc": "1977-07-01T03:24:02Z", "ms": 236575441591.43588 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-30T15:03:20+08:00", "utc": "1977-06-30T07:03:20Z", "ms": 236502200302.9806 }, "end": { "local": "1977-07-01T11:24:02+08:00", "utc": "1977-07-01T03:24:02Z", "ms": 236575441591.43588 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-06-30", "window": { "start": { "local": "1977-06-30T19:51:46+08:00", "utc": "1977-06-30T11:51:46Z", "ms": 236519506145.5341 }, "end": { "local": "1977-06-30T21:12:54+08:00", "utc": "1977-06-30T13:12:54Z", "ms": 236524373969.85324 } }, "covered_min": 81, "window_min": 81, "qualifies": true }, { "local_date": "1977-07-01", "window": { "start": { "local": "1977-07-01T19:51:48+08:00", "utc": "1977-07-01T11:51:48Z", "ms": 236605907702.67496 }, "end": { "local": "1977-07-01T21:12:58+08:00", "utc": "1977-07-01T13:12:58Z", "ms": 236610778253.52545 } }, "covered_min": 0, "window_min": 81, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:03 on Thu 30 Jun to 11:24 on Fri 1 Jul.", "fact": "1977-06-30T07:03:20Z → 1977-07-01T03:24:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:52–21:13 on the 30th, 19:52–21:13 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 81 of 81 minutes on the 30th and 0 of 81 on the 1st.", "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 17306 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Zunyi, 1977: Thursday 30 June.", "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": "1977-06-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-06-30", "confidence": "determinate" } ], "quote": "In Zunyi, Śiva Śayanotsava 1977 falls on Thursday 30 June. Pūrṇimā runs from 15:03 on Thu 30 Jun to 11:24 on Fri 1 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-07-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9448, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-06-30T15:03:20+08:00", "utc": "1977-06-30T07:03:20Z", "ms": 236502200302.9806 }, "end": { "local": "1977-07-01T11:24:02+08:00", "utc": "1977-07-01T03:24:02Z", "ms": 236575441591.43588 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-30T15:03:20+08:00", "utc": "1977-06-30T07:03:20Z", "ms": 236502200302.9806 }, "end": { "local": "1977-07-01T11:24:02+08:00", "utc": "1977-07-01T03:24:02Z", "ms": 236575441591.43588 } }, "kaala": "udaya-3", "days": [ { "local_date": "1977-06-30", "window": { "start": { "local": "1977-06-30T05:59:54+08:00", "utc": "1977-06-29T21:59:54Z", "ms": 236469593608.88474 }, "end": { "local": "1977-06-30T08:46:16+08:00", "utc": "1977-06-30T00:46:16Z", "ms": 236479576116.2146 } }, "covered_min": 0, "window_min": 166, "qualifies": false }, { "local_date": "1977-07-01", "window": { "start": { "local": "1977-07-01T06:00:15+08:00", "utc": "1977-06-30T22:00:15Z", "ms": 236556014827.9278 }, "end": { "local": "1977-07-01T08:46:33+08:00", "utc": "1977-07-01T00:46:33Z", "ms": 236565993402.87723 } }, "covered_min": 166, "window_min": 166, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:03 on Thu 30 Jun to 11:24 on Fri 1 Jul.", "fact": "1977-06-30T07:03:20Z → 1977-07-01T03:24:02Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:00–08:46 on the 30th, 06:00–08:47 on the 1st.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 0 of 166 minutes on the 30th and 166 of 166 on the 1st.", "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 9448 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Zunyi, 1977: Friday 1 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vyasa-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "udaya-3", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-07-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-07-01", "confidence": "determinate" } ], "quote": "In Zunyi, Vyāsa Pūjā 1977 falls on Friday 1 July. Pūrṇimā runs from 15:03 on Thu 30 Jun to 11:24 on Fri 1 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-07-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4080, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-06-30T15:03:20+08:00", "utc": "1977-06-30T07:03:20Z", "ms": 236502200302.9806 }, "end": { "local": "1977-07-01T11:24:02+08:00", "utc": "1977-07-01T03:24:02Z", "ms": 236575441591.43588 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1977-06-30T15:03:20+08:00", "utc": "1977-06-30T07:03:20Z", "ms": 236502200302.9806 }, "end": { "local": "1977-07-01T11:24:02+08:00", "utc": "1977-07-01T03:24:02Z", "ms": 236575441591.43588 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-06-30", "window": { "start": { "local": "1977-06-30T12:31:50+08:00", "utc": "1977-06-30T04:31:50Z", "ms": 236493109877.2094 }, "end": { "local": "1977-06-30T13:19:50+08:00", "utc": "1977-06-30T05:19:50Z", "ms": 236495989877.2094 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-07-01", "window": { "start": { "local": "1977-07-01T12:32:01+08:00", "utc": "1977-07-01T04:32:01Z", "ms": 236579521265.3014 }, "end": { "local": "1977-07-01T13:20:01+08:00", "utc": "1977-07-01T05:20:01Z", "ms": 236582401265.3014 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:03 on Thu 30 Jun to 11:24 on Fri 1 Jul.", "fact": "1977-06-30T07:03:20Z → 1977-07-01T03:24:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 30th, 12:32–13:20 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 4080 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Zunyi, 1977: Friday 1 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": "1977-07-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-07-01", "confidence": "determinate" } ], "quote": "In Zunyi, Guru Pūrṇimā 1977 falls on Friday 1 July. Pūrṇimā runs from 15:03 on Thu 30 Jun to 11:24 on Fri 1 Jul, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28904, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1977-07-02T07:56:33+08:00", "utc": "1977-07-01T23:56:33Z", "ms": 236649393356.6982 }, "end": { "local": "1977-07-03T04:51:47+08:00", "utc": "1977-07-02T20:51:47Z", "ms": 236724707185.11545 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-07-02T07:56:33+08:00", "utc": "1977-07-01T23:56:33Z", "ms": 236649393356.6982 }, "end": { "local": "1977-07-03T04:51:47+08:00", "utc": "1977-07-02T20:51:47Z", "ms": 236724707185.11545 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-07-01", "window": { "start": { "local": "1977-07-01T19:56:26+08:00", "utc": "1977-07-01T11:56:26Z", "ms": 236606185725.2015 }, "end": { "local": "1977-07-01T19:56:26+08:00", "utc": "1977-07-01T11:56:26Z", "ms": 236606185725.2015 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-07-02", "window": { "start": { "local": "1977-07-02T20:50:04+08:00", "utc": "1977-07-02T12:50:04Z", "ms": 236695803648.86945 }, "end": { "local": "1977-07-02T20:50:04+08:00", "utc": "1977-07-02T12:50:04Z", "ms": 236695803648.86945 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 07:57 on Sat 2 Jul to 04:52 on Sun 3 Jul.", "fact": "1977-07-01T23:56:33Z → 1977-07-02T20:51:47Z" }, { "step": "kaala", "text": "Moonrise is at 19:56 on the 1st and 20:50 on the 2nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 1st and is on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28904 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Zunyi, 1977: Saturday 2 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": "1977-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-07-02", "confidence": "determinate" } ], "quote": "In Zunyi, Aśūnya Śayana Vrata (Āṣāḍha) 1977 falls on Saturday 2 July. Dvitīyā runs from 07:57 on Sat 2 Jul to 04:52 on Sun 3 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-07-04", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-07-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7704, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-07-04T02:20:01+08:00", "utc": "1977-07-03T18:20:01Z", "ms": 236802001241.89505 }, "end": { "local": "1977-07-05T00:30:13+08:00", "utc": "1977-07-04T16:30:13Z", "ms": 236881812971.06644 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-07-04T02:20:01+08:00", "utc": "1977-07-03T18:20:01Z", "ms": 236802001241.89505 }, "end": { "local": "1977-07-05T00:30:13+08:00", "utc": "1977-07-04T16:30:13Z", "ms": 236881812971.06644 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-07-03", "window": { "start": { "local": "1977-07-03T21:38:16+08:00", "utc": "1977-07-03T13:38:16Z", "ms": 236785096293.41904 }, "end": { "local": "1977-07-03T21:38:16+08:00", "utc": "1977-07-03T13:38:16Z", "ms": 236785096293.41904 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-07-04", "window": { "start": { "local": "1977-07-04T22:21:49+08:00", "utc": "1977-07-04T14:21:49Z", "ms": 236874108974.54172 }, "end": { "local": "1977-07-04T22:21:49+08:00", "utc": "1977-07-04T14:21:49Z", "ms": 236874108974.54172 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:20 on Mon 4 Jul to 00:30 on Tue 5 Jul.", "fact": "1977-07-03T18:20:01Z → 1977-07-04T16:30:13Z" }, { "step": "kaala", "text": "Moonrise is at 21:38 on the 3rd and 22:22 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 3rd and is on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7704 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Monday 4 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": "1977-07-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-07-04", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Monday 4 July. Caturthī runs from 02:20 on Mon 4 Jul to 00:30 on Tue 5 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-07-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ekadashi?on=1977-07-12", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-07-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 723, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-07-11T05:52:24+08:00", "utc": "1977-07-10T21:52:24Z", "ms": 237419543553.2886 }, "end": { "local": "1977-07-12T08:24:20+08:00", "utc": "1977-07-12T00:24:20Z", "ms": 237515060370.63528 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-07-11T05:52:24+08:00", "utc": "1977-07-10T21:52:24Z", "ms": 237419543553.2886 }, "end": { "local": "1977-07-12T08:24:20+08:00", "utc": "1977-07-12T00:24:20Z", "ms": 237515060370.63528 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-07-11", "window": { "start": { "local": "1977-07-11T06:04:26+08:00", "utc": "1977-07-10T22:04:26Z", "ms": 237420266076.2798 }, "end": { "local": "1977-07-11T06:04:26+08:00", "utc": "1977-07-10T22:04:26Z", "ms": 237420266076.2798 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-07-12", "window": { "start": { "local": "1977-07-12T06:04:54+08:00", "utc": "1977-07-11T22:04:54Z", "ms": 237506694481.24036 }, "end": { "local": "1977-07-12T06:04:54+08:00", "utc": "1977-07-11T22:04:54Z", "ms": 237506694481.24036 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:52 on Mon 11 Jul to 08:24 on Tue 12 Jul.", "fact": "1977-07-10T21:52:24Z → 1977-07-12T00:24:20Z" }, { "step": "kaala", "text": "Sunrise is at 06:04 on the 11th and 06:05 on the 12th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 11th and is on the 12th.", "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 723 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Zunyi, 1977: Tuesday 12 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": "1977-07-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-07-12", "confidence": "determinate" } ], "quote": "In Zunyi, Kāmikā Ekādaśī 1977 falls on Tuesday 12 July. Ekādaśī runs from 05:52 on Mon 11 Jul to 08:24 on Tue 12 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-07-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-07-13", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24156, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-07-13T10:52:32+08:00", "utc": "1977-07-13T02:52:32Z", "ms": 237610351701.56946 }, "end": { "local": "1977-07-14T13:07:32+08:00", "utc": "1977-07-14T05:07:32Z", "ms": 237704851817.71317 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-07-13T10:52:32+08:00", "utc": "1977-07-13T02:52:32Z", "ms": 237610351701.56946 }, "end": { "local": "1977-07-14T13:07:32+08:00", "utc": "1977-07-14T05:07:32Z", "ms": 237704851817.71317 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-07-13", "window": { "start": { "local": "1977-07-13T19:50:24+08:00", "utc": "1977-07-13T11:50:24Z", "ms": 237642623928.37906 }, "end": { "local": "1977-07-13T21:12:28+08:00", "utc": "1977-07-13T13:12:28Z", "ms": 237647547761.02255 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "1977-07-14", "window": { "start": { "local": "1977-07-14T19:50:08+08:00", "utc": "1977-07-14T11:50:08Z", "ms": 237729008239.20398 }, "end": { "local": "1977-07-14T21:12:18+08:00", "utc": "1977-07-14T13:12:18Z", "ms": 237733938126.6489 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:53 on Wed 13 Jul to 13:08 on Thu 14 Jul.", "fact": "1977-07-13T02:52:32Z → 1977-07-14T05:07:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:50–21:12 on the 13th, 19:50–21:12 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 82 of 82 minutes on the 13th and 0 of 82 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 24156 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Wednesday 13 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": "1977-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-07-13", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Wednesday 13 July. Trayodaśī runs from 10:53 on Wed 13 Jul to 13:08 on Thu 14 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-07-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shivaratri?on=1977-07-14", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34268, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-07-14T13:07:32+08:00", "utc": "1977-07-14T05:07:32Z", "ms": 237704851817.71317 }, "end": { "local": "1977-07-15T15:03:14+08:00", "utc": "1977-07-15T07:03:14Z", "ms": 237798193768.90942 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-07-14T13:07:32+08:00", "utc": "1977-07-14T05:07:32Z", "ms": 237704851817.71317 }, "end": { "local": "1977-07-15T15:03:14+08:00", "utc": "1977-07-15T07:03:14Z", "ms": 237798193768.90942 } }, "kaala": "nishita", "days": [ { "local_date": "1977-07-14", "window": { "start": { "local": "1977-07-15T00:34:15+08:00", "utc": "1977-07-14T16:34:15Z", "ms": 237746055317.1224 }, "end": { "local": "1977-07-15T01:22:15+08:00", "utc": "1977-07-14T17:22:15Z", "ms": 237748935317.1224 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-07-15", "window": { "start": { "local": "1977-07-16T00:34:22+08:00", "utc": "1977-07-15T16:34:22Z", "ms": 237832461842.55646 }, "end": { "local": "1977-07-16T01:22:22+08:00", "utc": "1977-07-15T17:22:22Z", "ms": 237835341842.55646 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:08 on Thu 14 Jul to 15:03 on Fri 15 Jul.", "fact": "1977-07-14T05:07:32Z → 1977-07-15T07:03:14Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:34–01:22 on the 14th, 00:34–01:22 on the 15th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34268 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Thursday 14 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": "1977-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-07-14", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Thursday 14 July. Caturdaśī runs from 13:08 on Thu 14 Jul to 15:03 on Fri 15 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-07-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-07-20", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-07-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19997, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-07-19T18:55:51+08:00", "utc": "1977-07-19T10:55:51Z", "ms": 238157751297.22028 }, "end": { "local": "1977-07-20T18:55:47+08:00", "utc": "1977-07-20T10:55:47Z", "ms": 238244147427.6291 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-07-19T18:55:51+08:00", "utc": "1977-07-19T10:55:51Z", "ms": 238157751297.22028 }, "end": { "local": "1977-07-20T18:55:47+08:00", "utc": "1977-07-20T10:55:47Z", "ms": 238244147427.6291 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-07-19", "window": { "start": { "local": "1977-07-19T12:34:27+08:00", "utc": "1977-07-19T04:34:27Z", "ms": 238134867076.95 }, "end": { "local": "1977-07-19T13:22:27+08:00", "utc": "1977-07-19T05:22:27Z", "ms": 238137747076.95 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-07-20", "window": { "start": { "local": "1977-07-20T12:34:31+08:00", "utc": "1977-07-20T04:34:31Z", "ms": 238221270803.6267 }, "end": { "local": "1977-07-20T13:22:31+08:00", "utc": "1977-07-20T05:22:31Z", "ms": 238224150803.6267 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:56 on Tue 19 Jul to 18:56 on Wed 20 Jul.", "fact": "1977-07-19T10:55:51Z → 1977-07-20T10:55:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 on the 19th, 12:35–13:23 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19997 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1977: Wednesday 20 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": "1977-07-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-07-20", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1977 falls on Wednesday 20 July. Caturthī runs from 18:56 on Tue 19 Jul to 18:56 on Wed 20 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-07-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ekadashi?on=1977-07-27", "festival": "ekadashi", "name": "Śukla Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-07-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3389, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-07-26T10:01:21+08:00", "utc": "1977-07-26T02:01:21Z", "ms": 238730481318.03345 }, "end": { "local": "1977-07-27T07:09:08+08:00", "utc": "1977-07-26T23:09:08Z", "ms": 238806548222.32297 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-07-26T10:01:21+08:00", "utc": "1977-07-26T02:01:21Z", "ms": 238730481318.03345 }, "end": { "local": "1977-07-27T07:09:08+08:00", "utc": "1977-07-26T23:09:08Z", "ms": 238806548222.32297 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-07-26", "window": { "start": { "local": "1977-07-26T06:12:07+08:00", "utc": "1977-07-25T22:12:07Z", "ms": 238716727201.22385 }, "end": { "local": "1977-07-26T06:12:07+08:00", "utc": "1977-07-25T22:12:07Z", "ms": 238716727201.22385 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-07-27", "window": { "start": { "local": "1977-07-27T06:12:39+08:00", "utc": "1977-07-26T22:12:39Z", "ms": 238803159441.50378 }, "end": { "local": "1977-07-27T06:12:39+08:00", "utc": "1977-07-26T22:12:39Z", "ms": 238803159441.50378 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:01 on Tue 26 Jul to 07:09 on Wed 27 Jul.", "fact": "1977-07-26T02:01:21Z → 1977-07-26T23:09:08Z" }, { "step": "kaala", "text": "Sunrise is at 06:12 on the 26th and 06:13 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 26th and is on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3389 s" }, { "step": "ruling", "text": "Śukla Ekādaśī, Zunyi, 1977: Wednesday 27 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": "1977-07-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-07-27", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Ekādaśī 1977 falls on Wednesday 27 July. Ekādaśī runs from 10:01 on Tue 26 Jul to 07:09 on Wed 27 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-07-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-07-28", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-07-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13503, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-07-28T04:03:48+08:00", "utc": "1977-07-27T20:03:48Z", "ms": 238881828205.7009 }, "end": { "local": "1977-07-29T00:53:07+08:00", "utc": "1977-07-28T16:53:07Z", "ms": 238956787499.4541 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-07-28T04:03:48+08:00", "utc": "1977-07-27T20:03:48Z", "ms": 238881828205.7009 }, "end": { "local": "1977-07-29T00:53:07+08:00", "utc": "1977-07-28T16:53:07Z", "ms": 238956787499.4541 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-07-27", "window": { "start": { "local": "1977-07-27T19:44:42+08:00", "utc": "1977-07-27T11:44:42Z", "ms": 238851881645.84778 }, "end": { "local": "1977-07-27T21:08:30+08:00", "utc": "1977-07-27T13:08:30Z", "ms": 238856909657.2781 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "1977-07-28", "window": { "start": { "local": "1977-07-28T19:44:07+08:00", "utc": "1977-07-28T11:44:07Z", "ms": 238938247313.58014 }, "end": { "local": "1977-07-28T21:08:04+08:00", "utc": "1977-07-28T13:08:04Z", "ms": 238943284212.46655 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:04 on Thu 28 Jul to 00:53 on Fri 29 Jul.", "fact": "1977-07-27T20:03:48Z → 1977-07-28T16:53:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:45–21:08 on the 27th, 19:44–21:08 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 84 minutes on the 27th and 84 of 84 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 13503 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Thursday 28 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": "1977-07-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-07-28", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Thursday 28 July. Trayodaśī runs from 04:04 on Thu 28 Jul to 00:53 on Fri 29 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-07-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-08-02", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30589, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-08-02T13:05:24+08:00", "utc": "1977-08-02T05:05:24Z", "ms": 239346323997.2546 }, "end": { "local": "1977-08-03T12:33:46+08:00", "utc": "1977-08-03T04:33:46Z", "ms": 239430825692.4351 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-02T13:05:24+08:00", "utc": "1977-08-02T05:05:24Z", "ms": 239346323997.2546 }, "end": { "local": "1977-08-03T12:33:46+08:00", "utc": "1977-08-03T04:33:46Z", "ms": 239430825692.4351 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-08-02", "window": { "start": { "local": "1977-08-02T21:35:13+08:00", "utc": "1977-08-02T13:35:13Z", "ms": 239376913325.1158 }, "end": { "local": "1977-08-02T21:35:13+08:00", "utc": "1977-08-02T13:35:13Z", "ms": 239376913325.1158 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-08-03", "window": { "start": { "local": "1977-08-03T22:13:06+08:00", "utc": "1977-08-03T14:13:06Z", "ms": 239465585803.59866 }, "end": { "local": "1977-08-03T22:13:06+08:00", "utc": "1977-08-03T14:13:06Z", "ms": 239465585803.59866 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:05 on Tue 2 Aug to 12:34 on Wed 3 Aug.", "fact": "1977-08-02T05:05:24Z → 1977-08-03T04:33:46Z" }, { "step": "kaala", "text": "Moonrise is at 21:35 on the 2nd and 22:13 on the 3rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 2nd and is not on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30589 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Tuesday 2 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": "1977-08-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-02", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Tuesday 2 August. Caturthī runs from 13:05 on Tue 2 Aug to 12:34 on Wed 3 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-08-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ekadashi?on=1977-08-10", "festival": "ekadashi", "name": "Kṛṣṇa Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19478, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-08-09T22:41:54+08:00", "utc": "1977-08-09T14:41:54Z", "ms": 239985713971.132 }, "end": { "local": "1977-08-11T00:56:03+08:00", "utc": "1977-08-10T16:56:03Z", "ms": 240080163413.103 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-09T22:41:54+08:00", "utc": "1977-08-09T14:41:54Z", "ms": 239985713971.132 }, "end": { "local": "1977-08-11T00:56:03+08:00", "utc": "1977-08-10T16:56:03Z", "ms": 240080163413.103 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-08-10", "window": { "start": { "local": "1977-08-10T06:20:10+08:00", "utc": "1977-08-09T22:20:10Z", "ms": 240013210075.94232 }, "end": { "local": "1977-08-10T06:20:10+08:00", "utc": "1977-08-09T22:20:10Z", "ms": 240013210075.94232 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-08-11", "window": { "start": { "local": "1977-08-11T06:20:42+08:00", "utc": "1977-08-10T22:20:42Z", "ms": 240099641740.19745 }, "end": { "local": "1977-08-11T06:20:42+08:00", "utc": "1977-08-10T22:20:42Z", "ms": 240099641740.19745 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:42 on Tue 9 Aug to 00:56 on Thu 11 Aug.", "fact": "1977-08-09T14:41:54Z → 1977-08-10T16:56:03Z" }, { "step": "kaala", "text": "Sunrise is at 06:20 on the 10th and 06:21 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 10th and is not on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19478 s" }, { "step": "ruling", "text": "Kṛṣṇa Ekādaśī, Zunyi, 1977: Wednesday 10 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": "1977-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-10", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Ekādaśī 1977 falls on Wednesday 10 August. Ekādaśī runs from 22:42 on Tue 9 Aug to 00:56 on Thu 11 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-08-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-08-12", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20862, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-08-12T02:48:04+08:00", "utc": "1977-08-11T18:48:04Z", "ms": 240173283518.67322 }, "end": { "local": "1977-08-13T04:12:11+08:00", "utc": "1977-08-12T20:12:11Z", "ms": 240264731355.642 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-12T02:48:04+08:00", "utc": "1977-08-11T18:48:04Z", "ms": 240173283518.67322 }, "end": { "local": "1977-08-13T04:12:11+08:00", "utc": "1977-08-12T20:12:11Z", "ms": 240264731355.642 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-08-11", "window": { "start": { "local": "1977-08-11T19:34:04+08:00", "utc": "1977-08-11T11:34:04Z", "ms": 240147244366.83252 }, "end": { "local": "1977-08-11T21:00:22+08:00", "utc": "1977-08-11T13:00:22Z", "ms": 240152421554.64618 } }, "covered_min": 0, "window_min": 86, "qualifies": false }, { "local_date": "1977-08-12", "window": { "start": { "local": "1977-08-12T19:33:13+08:00", "utc": "1977-08-12T11:33:13Z", "ms": 240233593366.06454 }, "end": { "local": "1977-08-12T20:59:42+08:00", "utc": "1977-08-12T12:59:42Z", "ms": 240238781540.15195 } }, "covered_min": 86, "window_min": 86, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:48 on Fri 12 Aug to 04:12 on Sat 13 Aug.", "fact": "1977-08-11T18:48:04Z → 1977-08-12T20:12:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:34–21:00 on the 11th, 19:33–21:00 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 86 minutes on the 11th and 86 of 86 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 20862 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Friday 12 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": "1977-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-12", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Friday 12 August. Trayodaśī runs from 02:48 on Fri 12 Aug to 04:12 on Sat 13 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-08-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shivaratri?on=1977-08-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10242, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-08-13T04:12:11+08:00", "utc": "1977-08-12T20:12:11Z", "ms": 240264731355.642 }, "end": { "local": "1977-08-14T05:06:19+08:00", "utc": "1977-08-13T21:06:19Z", "ms": 240354378647.1763 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-13T04:12:11+08:00", "utc": "1977-08-12T20:12:11Z", "ms": 240264731355.642 }, "end": { "local": "1977-08-14T05:06:19+08:00", "utc": "1977-08-13T21:06:19Z", "ms": 240354378647.1763 } }, "kaala": "nishita", "days": [ { "local_date": "1977-08-12", "window": { "start": { "local": "1977-08-13T00:33:29+08:00", "utc": "1977-08-12T16:33:29Z", "ms": 240251609018.89227 }, "end": { "local": "1977-08-13T01:21:29+08:00", "utc": "1977-08-12T17:21:29Z", "ms": 240254489018.89227 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-08-13", "window": { "start": { "local": "1977-08-14T00:33:19+08:00", "utc": "1977-08-13T16:33:19Z", "ms": 240337998666.69965 }, "end": { "local": "1977-08-14T01:21:19+08:00", "utc": "1977-08-13T17:21:19Z", "ms": 240340878666.69965 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:12 on Sat 13 Aug to 05:06 on Sun 14 Aug.", "fact": "1977-08-12T20:12:11Z → 1977-08-13T21:06:19Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:33–01:21 on the 12th, 00:33–01:21 on the 13th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10242 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Saturday 13 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-08-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-13", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Saturday 13 August. Caturdaśī runs from 04:12 on Sat 13 Aug to 05:06 on Sun 14 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-08-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27031, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1977-08-17T05:01:46+08:00", "utc": "1977-08-16T21:01:46Z", "ms": 240613306044.70087 }, "end": { "local": "1977-08-18T04:13:40+08:00", "utc": "1977-08-17T20:13:40Z", "ms": 240696819611.22067 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-17T05:01:46+08:00", "utc": "1977-08-16T21:01:46Z", "ms": 240613306044.70087 }, "end": { "local": "1977-08-18T04:13:40+08:00", "utc": "1977-08-17T20:13:40Z", "ms": 240696819611.22067 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-08-17", "window": { "start": { "local": "1977-08-17T12:32:17+08:00", "utc": "1977-08-17T04:32:17Z", "ms": 240640336582.99338 }, "end": { "local": "1977-08-17T13:20:17+08:00", "utc": "1977-08-17T05:20:17Z", "ms": 240643216582.99338 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-08-18", "window": { "start": { "local": "1977-08-18T12:32:04+08:00", "utc": "1977-08-18T04:32:04Z", "ms": 240726723659.68082 }, "end": { "local": "1977-08-18T13:20:04+08:00", "utc": "1977-08-18T05:20:04Z", "ms": 240729603659.68082 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:02 on Wed 17 Aug to 04:14 on Thu 18 Aug.", "fact": "1977-08-16T21:01:46Z → 1977-08-17T20:13:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 17th, 12:32–13:20 on the 18th.", "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 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: paraviddha → only-day · margin 27031 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Zunyi, 1977: Wednesday 17 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "madhusrava-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Madhusrava (Gujerat) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-17", "confidence": "determinate" } ], "quote": "In Zunyi, Madhusravā Tṛtīyā (Hariyali Teej) 1977 falls on Wednesday 17 August. Tṛtīyā runs from 05:02 on Wed 17 Aug to 04:14 on Thu 18 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-08-18", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29904, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-08-18T04:13:40+08:00", "utc": "1977-08-17T20:13:40Z", "ms": 240696819611.22067 }, "end": { "local": "1977-08-19T03:06:35+08:00", "utc": "1977-08-18T19:06:35Z", "ms": 240779194763.46872 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-18T04:13:40+08:00", "utc": "1977-08-17T20:13:40Z", "ms": 240696819611.22067 }, "end": { "local": "1977-08-19T03:06:35+08:00", "utc": "1977-08-18T19:06:35Z", "ms": 240779194763.46872 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-08-18", "window": { "start": { "local": "1977-08-18T12:32:04+08:00", "utc": "1977-08-18T04:32:04Z", "ms": 240726723659.68082 }, "end": { "local": "1977-08-18T13:20:04+08:00", "utc": "1977-08-18T05:20:04Z", "ms": 240729603659.68082 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-08-19", "window": { "start": { "local": "1977-08-19T12:31:50+08:00", "utc": "1977-08-19T04:31:50Z", "ms": 240813110226.51898 }, "end": { "local": "1977-08-19T13:19:50+08:00", "utc": "1977-08-19T05:19:50Z", "ms": 240815990226.51898 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:14 on Thu 18 Aug to 03:07 on Fri 19 Aug.", "fact": "1977-08-17T20:13:40Z → 1977-08-18T19:06:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 18th, 12:32–13:20 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29904 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1977: Thursday 18 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-18", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1977 falls on Thursday 18 August. Caturthī runs from 04:14 on Thu 18 Aug to 03:07 on Fri 19 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-08-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33915, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1977-08-19T03:06:35+08:00", "utc": "1977-08-18T19:06:35Z", "ms": 240779194763.46872 }, "end": { "local": "1977-08-20T01:42:17+08:00", "utc": "1977-08-19T17:42:17Z", "ms": 240860537223.95233 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-19T03:06:35+08:00", "utc": "1977-08-18T19:06:35Z", "ms": 240779194763.46872 }, "end": { "local": "1977-08-20T01:42:17+08:00", "utc": "1977-08-19T17:42:17Z", "ms": 240860537223.95233 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-08-19", "window": { "start": { "local": "1977-08-19T12:31:50+08:00", "utc": "1977-08-19T04:31:50Z", "ms": 240813110226.51898 }, "end": { "local": "1977-08-19T13:19:50+08:00", "utc": "1977-08-19T05:19:50Z", "ms": 240815990226.51898 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-08-20", "window": { "start": { "local": "1977-08-20T12:31:36+08:00", "utc": "1977-08-20T04:31:36Z", "ms": 240899496291.8423 }, "end": { "local": "1977-08-20T13:19:36+08:00", "utc": "1977-08-20T05:19:36Z", "ms": 240902376291.8423 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:07 on Fri 19 Aug to 01:42 on Sat 20 Aug.", "fact": "1977-08-18T19:06:35Z → 1977-08-19T17:42:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 19th, 12:32–13:20 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33915 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Zunyi, 1977: Friday 19 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-19", "confidence": "determinate" } ], "quote": "In Zunyi, Nāga Pañcamī 1977 falls on Friday 19 August. Pañcamī runs from 03:07 on Fri 19 Aug to 01:42 on Sat 20 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-08-25", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22386, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-08-24T15:11:43+08:00", "utc": "1977-08-24T07:11:43Z", "ms": 241254702653.6979 }, "end": { "local": "1977-08-25T12:40:54+08:00", "utc": "1977-08-25T04:40:54Z", "ms": 241332053735.16714 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-24T15:11:43+08:00", "utc": "1977-08-24T07:11:43Z", "ms": 241254702653.6979 }, "end": { "local": "1977-08-25T12:40:54+08:00", "utc": "1977-08-25T04:40:54Z", "ms": 241332053735.16714 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-08-24", "window": { "start": { "local": "1977-08-24T06:27:19+08:00", "utc": "1977-08-23T22:27:19Z", "ms": 241223238633.92987 }, "end": { "local": "1977-08-24T06:27:19+08:00", "utc": "1977-08-23T22:27:19Z", "ms": 241223238633.92987 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-08-25", "window": { "start": { "local": "1977-08-25T06:27:48+08:00", "utc": "1977-08-24T22:27:48Z", "ms": 241309667853.96143 }, "end": { "local": "1977-08-25T06:27:48+08:00", "utc": "1977-08-24T22:27:48Z", "ms": 241309667853.96143 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:12 on Wed 24 Aug to 12:41 on Thu 25 Aug.", "fact": "1977-08-24T07:11:43Z → 1977-08-25T04:40:54Z" }, { "step": "kaala", "text": "Sunrise is at 06:27 on the 24th and 06:28 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 22386 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Zunyi, 1977: Thursday 25 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": "1977-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-25", "confidence": "determinate" } ], "quote": "In Zunyi, Putradā Ekādaśī 1977 falls on Thursday 25 August. Ekādaśī runs from 15:12 on Wed 24 Aug to 12:41 on Thu 25 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-08-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 634, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1977-08-25T12:40:54+08:00", "utc": "1977-08-25T04:40:54Z", "ms": 241332053735.16714 }, "end": { "local": "1977-08-26T10:12:22+08:00", "utc": "1977-08-26T02:12:22Z", "ms": 241409541581.02234 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-25T12:40:54+08:00", "utc": "1977-08-25T04:40:54Z", "ms": 241332053735.16714 }, "end": { "local": "1977-08-26T10:12:22+08:00", "utc": "1977-08-26T02:12:22Z", "ms": 241409541581.02234 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-08-25", "window": { "start": { "local": "1977-08-25T12:30:19+08:00", "utc": "1977-08-25T04:30:19Z", "ms": 241331419479.66302 }, "end": { "local": "1977-08-25T13:18:19+08:00", "utc": "1977-08-25T05:18:19Z", "ms": 241334299479.66302 } }, "covered_min": 37, "window_min": 48, "qualifies": true }, { "local_date": "1977-08-26", "window": { "start": { "local": "1977-08-26T12:30:03+08:00", "utc": "1977-08-26T04:30:03Z", "ms": 241417802786.68097 }, "end": { "local": "1977-08-26T13:18:03+08:00", "utc": "1977-08-26T05:18:03Z", "ms": 241420682786.68097 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 12:41 on Thu 25 Aug to 10:12 on Fri 26 Aug.", "fact": "1977-08-25T04:40:54Z → 1977-08-26T02:12:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 25th, 12:30–13:18 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 37 of 48 minutes on the 25th and 0 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 634 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Zunyi, 1977: Thursday 25 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": "1977-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-25", "confidence": "determinate" } ], "quote": "In Zunyi, Dāmodara Dvādaśī 1977 falls on Thursday 25 August. Dvādaśī runs from 12:41 on Thu 25 Aug to 10:12 on Fri 26 Aug and covers 37 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/pradosha-vrata?on=1977-08-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32847, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-08-26T10:12:22+08:00", "utc": "1977-08-26T02:12:22Z", "ms": 241409541581.02234 }, "end": { "local": "1977-08-27T07:52:47+08:00", "utc": "1977-08-26T23:52:47Z", "ms": 241487566858.50473 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-26T10:12:22+08:00", "utc": "1977-08-26T02:12:22Z", "ms": 241409541581.02234 }, "end": { "local": "1977-08-27T07:52:47+08:00", "utc": "1977-08-26T23:52:47Z", "ms": 241487566858.50473 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-08-26", "window": { "start": { "local": "1977-08-26T19:19:49+08:00", "utc": "1977-08-26T11:19:49Z", "ms": 241442388683.0781 }, "end": { "local": "1977-08-26T20:49:00+08:00", "utc": "1977-08-26T12:49:00Z", "ms": 241447740292.10577 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "1977-08-27", "window": { "start": { "local": "1977-08-27T19:18:46+08:00", "utc": "1977-08-27T11:18:46Z", "ms": 241528725627.66727 }, "end": { "local": "1977-08-27T20:48:09+08:00", "utc": "1977-08-27T12:48:09Z", "ms": 241534089469.96786 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:12 on Fri 26 Aug to 07:53 on Sat 27 Aug.", "fact": "1977-08-26T02:12:22Z → 1977-08-26T23:52:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:20–20:49 on the 26th, 19:19–20:48 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 89 of 89 minutes on the 26th and 0 of 89 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 32847 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Friday 26 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": "1977-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-26", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Friday 26 August. Trayodaśī runs from 10:12 on Fri 26 Aug to 07:53 on Sat 27 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-08-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8380, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-08-28T05:49:30+08:00", "utc": "1977-08-27T21:49:30Z", "ms": 241566569994.27853 }, "end": { "local": "1977-08-29T04:10:03+08:00", "utc": "1977-08-28T20:10:03Z", "ms": 241647003025.2551 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1977-08-28T16:56:20+08:00", "utc": "1977-08-28T08:56:20Z", "ms": 241606580006.185 }, "end": { "local": "1977-08-29T04:10:03+08:00", "utc": "1977-08-28T20:10:03Z", "ms": 241647003025.2551 } }, "kaala": "day", "days": [ { "local_date": "1977-08-28", "window": { "start": { "local": "1977-08-28T06:29:14+08:00", "utc": "1977-08-27T22:29:14Z", "ms": 241568954444.92175 }, "end": { "local": "1977-08-29T06:29:43+08:00", "utc": "1977-08-28T22:29:43Z", "ms": 241655382983.30856 } }, "covered_min": 674, "window_min": 1440, "qualifies": true }, { "local_date": "1977-08-29", "window": { "start": { "local": "1977-08-29T06:29:43+08:00", "utc": "1977-08-28T22:29:43Z", "ms": 241655382983.30856 }, "end": { "local": "1977-08-30T06:30:11+08:00", "utc": "1977-08-29T22:30:11Z", "ms": 241741811377.25034 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:49 on Sun 28 Aug to 04:10 on Mon 29 Aug. Its second half begins at 16:56 on Sun 28 Aug.", "fact": "1977-08-27T21:49:30Z → 1977-08-28T20:10:03Z · second half from 1977-08-28T08:56:20Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:29 on the 28th, and from 06:30 on the 29th.", "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 674 of 1440 minutes on the 28th and 0 of 1440 on the 29th.", "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 8380 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Zunyi, 1977: Sunday 28 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": "1977-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-28", "confidence": "determinate" } ], "quote": "In Zunyi, Rakṣā Bandhana (Rakhi) 1977 falls on Sunday 28 August. The second half of Pūrṇimā runs from 16:56 on Sun 28 Aug to 04:10 on Mon 29 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23998, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-08-28T05:49:30+08:00", "utc": "1977-08-27T21:49:30Z", "ms": 241566569994.27853 }, "end": { "local": "1977-08-29T04:10:03+08:00", "utc": "1977-08-28T20:10:03Z", "ms": 241647003025.2551 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1977-08-28T05:49:30+08:00", "utc": "1977-08-27T21:49:30Z", "ms": 241566569994.27853 }, "end": { "local": "1977-08-29T04:10:03+08:00", "utc": "1977-08-28T20:10:03Z", "ms": 241647003025.2551 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-08-28", "window": { "start": { "local": "1977-08-28T12:29:28+08:00", "utc": "1977-08-28T04:29:28Z", "ms": 241590568206.36606 }, "end": { "local": "1977-08-28T13:17:28+08:00", "utc": "1977-08-28T05:17:28Z", "ms": 241593448206.36606 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-08-29", "window": { "start": { "local": "1977-08-29T12:29:10+08:00", "utc": "1977-08-29T04:29:10Z", "ms": 241676950357.84985 }, "end": { "local": "1977-08-29T13:17:10+08:00", "utc": "1977-08-29T05:17:10Z", "ms": 241679830357.84985 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:49 on Sun 28 Aug to 04:10 on Mon 29 Aug.", "fact": "1977-08-27T21:49:30Z → 1977-08-28T20:10:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 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": "Pūrṇimā 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: unstated → only-day · margin 23998 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Zunyi, 1977: Sunday 28 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": "1977-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-28", "confidence": "determinate" } ], "quote": "In Zunyi, Ṛṣi Tarpaṇa 1977 falls on Sunday 28 August. Pūrṇimā runs from 05:49 on Sun 28 Aug to 04:10 on Mon 29 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22907, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1977-08-30T03:01:33+08:00", "utc": "1977-08-29T19:01:33Z", "ms": 241729292986.00754 }, "end": { "local": "1977-08-31T02:29:56+08:00", "utc": "1977-08-30T18:29:56Z", "ms": 241813796083.6454 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-08-30T03:01:33+08:00", "utc": "1977-08-29T19:01:33Z", "ms": 241729292986.00754 }, "end": { "local": "1977-08-31T02:29:56+08:00", "utc": "1977-08-30T18:29:56Z", "ms": 241813796083.6454 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-08-29", "window": { "start": { "local": "1977-08-29T19:29:13+08:00", "utc": "1977-08-29T11:29:13Z", "ms": 241702152720.36206 }, "end": { "local": "1977-08-29T19:29:13+08:00", "utc": "1977-08-29T11:29:13Z", "ms": 241702152720.36206 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-08-30", "window": { "start": { "local": "1977-08-30T20:08:09+08:00", "utc": "1977-08-30T12:08:09Z", "ms": 241790888890.24594 }, "end": { "local": "1977-08-30T20:08:09+08:00", "utc": "1977-08-30T12:08:09Z", "ms": 241790888890.24594 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 03:02 on Tue 30 Aug to 02:30 on Wed 31 Aug.", "fact": "1977-08-29T19:01:33Z → 1977-08-30T18:29:56Z" }, { "step": "kaala", "text": "Moonrise is at 19:29 on the 29th and 20:08 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22907 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Zunyi, 1977: Tuesday 30 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": "1977-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-30", "confidence": "determinate" } ], "quote": "In Zunyi, Aśūnya Śayana Vrata 1977 falls on Tuesday 30 August. Dvitīyā runs from 03:02 on Tue 30 Aug to 02:30 on Wed 31 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35351, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1977-08-31T02:29:56+08:00", "utc": "1977-08-30T18:29:56Z", "ms": 241813796083.6454 }, "end": { "local": "1977-09-01T02:39:03+08:00", "utc": "1977-08-31T18:39:03Z", "ms": 241900743440.9778 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-08-31T02:29:56+08:00", "utc": "1977-08-30T18:29:56Z", "ms": 241813796083.6454 }, "end": { "local": "1977-09-01T02:39:03+08:00", "utc": "1977-08-31T18:39:03Z", "ms": 241900743440.9778 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-08-31", "window": { "start": { "local": "1977-08-31T12:28:34+08:00", "utc": "1977-08-31T04:28:34Z", "ms": 241849713644.2621 }, "end": { "local": "1977-08-31T13:16:34+08:00", "utc": "1977-08-31T05:16:34Z", "ms": 241852593644.2621 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-09-01", "window": { "start": { "local": "1977-09-01T12:28:15+08:00", "utc": "1977-09-01T04:28:15Z", "ms": 241936094819.41278 }, "end": { "local": "1977-09-01T13:16:15+08:00", "utc": "1977-09-01T05:16:15Z", "ms": 241938974819.41278 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 02:30 on Wed 31 Aug to 02:39 on Thu 1 Sep.", "fact": "1977-08-30T18:29:56Z → 1977-08-31T18:39:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 31st, 12:28–13:16 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 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: paraviddha → only-day · margin 35351 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Zunyi, 1977: Wednesday 31 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": "1977-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-08-31", "confidence": "determinate" } ], "quote": "In Zunyi, Kajjalī Tṛtīyā (Kajari Teej) 1977 falls on Wednesday 31 August. Tṛtīyā runs from 02:30 on Wed 31 Aug to 02:39 on Thu 1 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26676, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-09-01T02:39:03+08:00", "utc": "1977-08-31T18:39:03Z", "ms": 241900743440.9778 }, "end": { "local": "1977-09-02T03:29:43+08:00", "utc": "1977-09-01T19:29:43Z", "ms": 241990183389.74402 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-01T02:39:03+08:00", "utc": "1977-08-31T18:39:03Z", "ms": 241900743440.9778 }, "end": { "local": "1977-09-02T03:29:43+08:00", "utc": "1977-09-01T19:29:43Z", "ms": 241990183389.74402 } }, "kaala": "sayahna", "days": [ { "local_date": "1977-08-31", "window": { "start": { "local": "1977-08-31T16:41:42+08:00", "utc": "1977-08-31T08:41:42Z", "ms": 241864902047.84583 }, "end": { "local": "1977-08-31T19:14:28+08:00", "utc": "1977-08-31T11:14:28Z", "ms": 241874067650.235 } }, "covered_min": 0, "window_min": 153, "qualifies": false }, { "local_date": "1977-09-01", "window": { "start": { "local": "1977-09-01T16:40:55+08:00", "utc": "1977-09-01T08:40:55Z", "ms": 241951255044.34338 }, "end": { "local": "1977-09-01T19:13:22+08:00", "utc": "1977-09-01T11:13:22Z", "ms": 241960401860.96378 } }, "covered_min": 152, "window_min": 152, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:39 on Thu 1 Sep to 03:30 on Fri 2 Sep.", "fact": "1977-08-31T18:39:03Z → 1977-09-01T19:29:43Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:42–19:14 on the 31st, 16:41–19:13 on the 1st.", "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 153 minutes on the 31st and 152 of 152 on the 1st.", "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 26676 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Zunyi, 1977: Thursday 1 September.", "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": "1977-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-01", "confidence": "determinate" } ], "quote": "In Zunyi, Bahulā Caturthī 1977 falls on Thursday 1 September. Caturthī runs from 02:39 on Thu 1 Sep to 03:30 on Fri 2 Sep and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-09-01", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21178, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-09-01T02:39:03+08:00", "utc": "1977-08-31T18:39:03Z", "ms": 241900743440.9778 }, "end": { "local": "1977-09-02T03:29:43+08:00", "utc": "1977-09-01T19:29:43Z", "ms": 241990183389.74402 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-01T02:39:03+08:00", "utc": "1977-08-31T18:39:03Z", "ms": 241900743440.9778 }, "end": { "local": "1977-09-02T03:29:43+08:00", "utc": "1977-09-01T19:29:43Z", "ms": 241990183389.74402 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-08-31", "window": { "start": { "local": "1977-08-31T20:46:05+08:00", "utc": "1977-08-31T12:46:05Z", "ms": 241879565288.23874 }, "end": { "local": "1977-08-31T20:46:05+08:00", "utc": "1977-08-31T12:46:05Z", "ms": 241879565288.23874 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-09-01", "window": { "start": { "local": "1977-09-01T21:23:54+08:00", "utc": "1977-09-01T13:23:54Z", "ms": 241968233681.8245 }, "end": { "local": "1977-09-01T21:23:54+08:00", "utc": "1977-09-01T13:23:54Z", "ms": 241968233681.8245 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:39 on Thu 1 Sep to 03:30 on Fri 2 Sep.", "fact": "1977-08-31T18:39:03Z → 1977-09-01T19:29:43Z" }, { "step": "kaala", "text": "Moonrise is at 20:46 on the 31st and 21:24 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 31st and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21178 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Thursday 1 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-01", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Thursday 1 September. Caturthī runs from 02:39 on Thu 1 Sep to 03:30 on Fri 2 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-09-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19686, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1977-09-03T04:58:52+08:00", "utc": "1977-09-02T20:58:52Z", "ms": 242081932028.89713 }, "end": { "local": "1977-09-04T06:59:10+08:00", "utc": "1977-09-03T22:59:10Z", "ms": 242175550472.05258 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-03T04:58:52+08:00", "utc": "1977-09-02T20:58:52Z", "ms": 242081932028.89713 }, "end": { "local": "1977-09-04T06:59:10+08:00", "utc": "1977-09-03T22:59:10Z", "ms": 242175550472.05258 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-09-03", "window": { "start": { "local": "1977-09-03T12:27:36+08:00", "utc": "1977-09-03T04:27:36Z", "ms": 242108856332.26178 }, "end": { "local": "1977-09-03T13:15:36+08:00", "utc": "1977-09-03T05:15:36Z", "ms": 242111736332.26178 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-09-04", "window": { "start": { "local": "1977-09-04T12:27:17+08:00", "utc": "1977-09-04T04:27:17Z", "ms": 242195236707.52155 }, "end": { "local": "1977-09-04T13:15:17+08:00", "utc": "1977-09-04T05:15:17Z", "ms": 242198116707.52155 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 04:59 on Sat 3 Sep to 06:59 on Sun 4 Sep.", "fact": "1977-09-02T20:58:52Z → 1977-09-03T22:59:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 3rd, 12:27–13:15 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19686 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Zunyi, 1977: Saturday 3 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "hala-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Hala sasthi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-03", "confidence": "determinate" } ], "quote": "In Zunyi, Hala Ṣaṣṭhī 1977 falls on Saturday 3 September. Ṣaṣṭhī runs from 04:59 on Sat 3 Sep to 06:59 on Sun 4 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11249, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1977-09-04T06:59:10+08:00", "utc": "1977-09-03T22:59:10Z", "ms": 242175550472.05258 }, "end": { "local": "1977-09-05T09:19:28+08:00", "utc": "1977-09-05T01:19:28Z", "ms": 242270368222.53854 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-04T06:59:10+08:00", "utc": "1977-09-03T22:59:10Z", "ms": 242175550472.05258 }, "end": { "local": "1977-09-05T09:19:28+08:00", "utc": "1977-09-05T01:19:28Z", "ms": 242270368222.53854 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-09-04", "window": { "start": { "local": "1977-09-04T12:27:17+08:00", "utc": "1977-09-04T04:27:17Z", "ms": 242195236707.52155 }, "end": { "local": "1977-09-04T13:15:17+08:00", "utc": "1977-09-04T05:15:17Z", "ms": 242198116707.52155 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-09-05", "window": { "start": { "local": "1977-09-05T12:26:57+08:00", "utc": "1977-09-05T04:26:57Z", "ms": 242281616853.48325 }, "end": { "local": "1977-09-05T13:14:57+08:00", "utc": "1977-09-05T05:14:57Z", "ms": 242284496853.48325 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 06:59 on Sun 4 Sep to 09:19 on Mon 5 Sep.", "fact": "1977-09-03T22:59:10Z → 1977-09-05T01:19:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 4th, 12:27–13:15 on the 5th.", "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 4th and 0 of 48 on the 5th.", "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 11249 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Zunyi, 1977: Sunday 4 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitala-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 7 Sitala saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-04", "confidence": "determinate" } ], "quote": "In Zunyi, Śītalā Saptamī 1977 falls on Sunday 4 September. Saptamī runs from 06:59 on Sun 4 Sep to 09:19 on Mon 5 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29038, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1977-09-05T09:19:28+08:00", "utc": "1977-09-05T01:19:28Z", "ms": 242270368222.53854 }, "end": { "local": "1977-09-06T11:46:01+08:00", "utc": "1977-09-06T03:46:01Z", "ms": 242365561455.3023 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-05T09:19:28+08:00", "utc": "1977-09-05T01:19:28Z", "ms": 242270368222.53854 }, "end": { "local": "1977-09-06T11:46:01+08:00", "utc": "1977-09-06T03:46:01Z", "ms": 242365561455.3023 } }, "kaala": "nishita", "days": [ { "local_date": "1977-09-04", "window": { "start": { "local": "1977-09-05T00:27:31+08:00", "utc": "1977-09-04T16:27:31Z", "ms": 242238450588.63428 }, "end": { "local": "1977-09-05T01:15:31+08:00", "utc": "1977-09-04T17:15:31Z", "ms": 242241330588.63428 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-09-05", "window": { "start": { "local": "1977-09-06T00:27:11+08:00", "utc": "1977-09-05T16:27:11Z", "ms": 242324830700.06903 }, "end": { "local": "1977-09-06T01:15:11+08:00", "utc": "1977-09-05T17:15:11Z", "ms": 242327710700.06903 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 09:19 on Mon 5 Sep to 11:46 on Tue 6 Sep.", "fact": "1977-09-05T01:19:28Z → 1977-09-06T03:46:01Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:28–01:16 on the 4th, 00:27–01:15 on the 5th.", "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 4th and 48 of 48 on the 5th.", "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 29038 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Zunyi, 1977: Monday 5 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "janmashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami." } ], "not_evaluated": "The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.", "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-05", "confidence": "determinate" } ], "quote": "In Zunyi, Janmāṣṭamī 1977 falls on Monday 5 September. Aṣṭamī runs from 09:19 on Mon 5 Sep to 11:46 on Tue 6 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-09-09", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34080, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-09-08T16:02:23+08:00", "utc": "1977-09-08T08:02:23Z", "ms": 242553742539.28134 }, "end": { "local": "1977-09-09T17:30:02+08:00", "utc": "1977-09-09T09:30:02Z", "ms": 242645401673.5616 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-08T16:02:23+08:00", "utc": "1977-09-08T08:02:23Z", "ms": 242553742539.28134 }, "end": { "local": "1977-09-09T17:30:02+08:00", "utc": "1977-09-09T09:30:02Z", "ms": 242645401673.5616 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-09-08", "window": { "start": { "local": "1977-09-08T06:34:22+08:00", "utc": "1977-09-07T22:34:22Z", "ms": 242519662252.8635 }, "end": { "local": "1977-09-08T06:34:22+08:00", "utc": "1977-09-07T22:34:22Z", "ms": 242519662252.8635 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-09-09", "window": { "start": { "local": "1977-09-09T06:34:50+08:00", "utc": "1977-09-08T22:34:50Z", "ms": 242606089796.83533 }, "end": { "local": "1977-09-09T06:34:50+08:00", "utc": "1977-09-08T22:34:50Z", "ms": 242606089796.83533 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:02 on Thu 8 Sep to 17:30 on Fri 9 Sep.", "fact": "1977-09-08T08:02:23Z → 1977-09-09T09:30:02Z" }, { "step": "kaala", "text": "Sunrise is at 06:34 on the 8th and 06:35 on the 9th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 8th and is on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34080 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Zunyi, 1977: Friday 9 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": "1977-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-09", "confidence": "determinate" } ], "quote": "In Zunyi, Ajā Ekādaśī 1977 falls on Friday 9 September. Ekādaśī runs from 16:02 on Thu 8 Sep to 17:30 on Fri 9 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-09-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-09-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1516, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-09-10T18:22:02+08:00", "utc": "1977-09-10T10:22:02Z", "ms": 242734922227.2523 }, "end": { "local": "1977-09-11T18:36:47+08:00", "utc": "1977-09-11T10:36:47Z", "ms": 242822207047.40375 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-10T18:22:02+08:00", "utc": "1977-09-10T10:22:02Z", "ms": 242734922227.2523 }, "end": { "local": "1977-09-11T18:36:47+08:00", "utc": "1977-09-11T10:36:47Z", "ms": 242822207047.40375 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-09-10", "window": { "start": { "local": "1977-09-10T19:03:12+08:00", "utc": "1977-09-10T11:03:12Z", "ms": 242737392237.70493 }, "end": { "local": "1977-09-10T20:35:33+08:00", "utc": "1977-09-10T12:35:33Z", "ms": 242742932579.37155 } }, "covered_min": 92, "window_min": 92, "qualifies": true }, { "local_date": "1977-09-11", "window": { "start": { "local": "1977-09-11T19:02:03+08:00", "utc": "1977-09-11T11:02:03Z", "ms": 242823723035.22128 }, "end": { "local": "1977-09-11T20:34:36+08:00", "utc": "1977-09-11T12:34:36Z", "ms": 242829276267.45166 } }, "covered_min": 0, "window_min": 93, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:22 on Sat 10 Sep to 18:37 on Sun 11 Sep.", "fact": "1977-09-10T10:22:02Z → 1977-09-11T10:36:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:03–20:36 on the 10th, 19:02–20:35 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 92 of 92 minutes on the 10th and 0 of 93 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1516 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Saturday 10 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": "1977-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-10", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Saturday 10 September. Trayodaśī runs from 18:22 on Sat 10 Sep to 18:37 on Sun 11 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-09-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1516, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-09-11T18:36:47+08:00", "utc": "1977-09-11T10:36:47Z", "ms": 242822207047.40375 }, "end": { "local": "1977-09-12T18:15:47+08:00", "utc": "1977-09-12T10:15:47Z", "ms": 242907347498.4779 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-11T18:36:47+08:00", "utc": "1977-09-11T10:36:47Z", "ms": 242822207047.40375 }, "end": { "local": "1977-09-12T18:15:47+08:00", "utc": "1977-09-12T10:15:47Z", "ms": 242907347498.4779 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-09-11", "window": { "start": { "local": "1977-09-11T19:02:03+08:00", "utc": "1977-09-11T11:02:03Z", "ms": 242823723035.22128 }, "end": { "local": "1977-09-11T20:34:36+08:00", "utc": "1977-09-11T12:34:36Z", "ms": 242829276267.45166 } }, "covered_min": 93, "window_min": 93, "qualifies": true }, { "local_date": "1977-09-12", "window": { "start": { "local": "1977-09-12T19:00:54+08:00", "utc": "1977-09-12T11:00:54Z", "ms": 242910053631.49454 }, "end": { "local": "1977-09-12T20:33:40+08:00", "utc": "1977-09-12T12:33:40Z", "ms": 242915619780.30557 } }, "covered_min": 0, "window_min": 93, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:37 on Sun 11 Sep to 18:16 on Mon 12 Sep.", "fact": "1977-09-11T10:36:47Z → 1977-09-12T10:15:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:02–20:35 on the 11th, 19:01–20:34 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 93 of 93 minutes on the 11th and 0 of 93 on the 12th.", "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 1516 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Zunyi, 1977: Sunday 11 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-11", "confidence": "determinate" } ], "quote": "In Zunyi, Aghora Caturdaśī 1977 falls on Sunday 11 September. Caturdaśī runs from 18:37 on Sun 11 Sep to 18:16 on Mon 12 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/shivaratri?on=1977-09-11", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20901, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-09-11T18:36:47+08:00", "utc": "1977-09-11T10:36:47Z", "ms": 242822207047.40375 }, "end": { "local": "1977-09-12T18:15:47+08:00", "utc": "1977-09-12T10:15:47Z", "ms": 242907347498.4779 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-11T18:36:47+08:00", "utc": "1977-09-11T10:36:47Z", "ms": 242822207047.40375 }, "end": { "local": "1977-09-12T18:15:47+08:00", "utc": "1977-09-12T10:15:47Z", "ms": 242907347498.4779 } }, "kaala": "nishita", "days": [ { "local_date": "1977-09-11", "window": { "start": { "local": "1977-09-12T00:25:08+08:00", "utc": "1977-09-11T16:25:08Z", "ms": 242843107656.0852 }, "end": { "local": "1977-09-12T01:13:08+08:00", "utc": "1977-09-11T17:13:08Z", "ms": 242845987656.0852 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-09-12", "window": { "start": { "local": "1977-09-13T00:24:47+08:00", "utc": "1977-09-12T16:24:47Z", "ms": 242929486689.5359 }, "end": { "local": "1977-09-13T01:12:47+08:00", "utc": "1977-09-12T17:12:47Z", "ms": 242932366689.5359 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:37 on Sun 11 Sep to 18:16 on Mon 12 Sep.", "fact": "1977-09-11T10:36:47Z → 1977-09-12T10:15:47Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:25–01:13 on the 11th, 00:25–01:13 on the 12th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20901 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Sunday 11 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": "1977-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-11", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Sunday 11 September. Caturdaśī runs from 18:37 on Sun 11 Sep to 18:16 on Mon 12 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-09-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10252, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1977-09-13T17:22:46+08:00", "utc": "1977-09-13T09:22:46Z", "ms": 242990566424.20697 }, "end": { "local": "1977-09-14T16:02:43+08:00", "utc": "1977-09-14T08:02:43Z", "ms": 243072162750.89673 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-13T17:22:46+08:00", "utc": "1977-09-13T09:22:46Z", "ms": 242990566424.20697 }, "end": { "local": "1977-09-14T16:02:43+08:00", "utc": "1977-09-14T08:02:43Z", "ms": 243072162750.89673 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-09-13", "window": { "start": { "local": "1977-09-13T12:24:12+08:00", "utc": "1977-09-13T04:24:12Z", "ms": 242972651898.2873 }, "end": { "local": "1977-09-13T13:12:12+08:00", "utc": "1977-09-13T05:12:12Z", "ms": 242975531898.2873 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-09-14", "window": { "start": { "local": "1977-09-14T12:23:51+08:00", "utc": "1977-09-14T04:23:51Z", "ms": 243059030766.14246 }, "end": { "local": "1977-09-14T13:11:51+08:00", "utc": "1977-09-14T05:11:51Z", "ms": 243061910766.14246 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 17:23 on Tue 13 Sep to 16:03 on Wed 14 Sep.", "fact": "1977-09-13T09:22:46Z → 1977-09-14T08:02:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 13th, 12:24–13:12 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 10252 s" }, { "step": "ruling", "text": "Rudra Vrata, Zunyi, 1977: Wednesday 14 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rudra-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Rudra vrata (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-09-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-14", "confidence": "determinate" } ], "quote": "In Zunyi, Rudra Vrata 1977 falls on Wednesday 14 September. Pratipadā runs from 17:23 on Tue 13 Sep to 16:03 on Wed 14 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-16", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 16, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-09-16T12:23:24+08:00", "utc": "1977-09-16T04:23:24Z", "ms": 243231803937.59116 }, "end": { "local": "1977-09-17T10:14:41+08:00", "utc": "1977-09-17T02:14:41Z", "ms": 243310481064.91248 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-16T12:23:24+08:00", "utc": "1977-09-16T04:23:24Z", "ms": 243231803937.59116 }, "end": { "local": "1977-09-17T10:14:41+08:00", "utc": "1977-09-17T02:14:41Z", "ms": 243310481064.91248 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-09-16", "window": { "start": { "local": "1977-09-16T12:23:08+08:00", "utc": "1977-09-16T04:23:08Z", "ms": 243231788333.833 }, "end": { "local": "1977-09-16T13:11:08+08:00", "utc": "1977-09-16T05:11:08Z", "ms": 243234668333.833 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-09-17", "window": { "start": { "local": "1977-09-17T12:22:47+08:00", "utc": "1977-09-17T04:22:47Z", "ms": 243318167064.86133 }, "end": { "local": "1977-09-17T13:10:47+08:00", "utc": "1977-09-17T05:10:47Z", "ms": 243321047064.86133 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:23 on Fri 16 Sep to 10:15 on Sat 17 Sep.", "fact": "1977-09-16T04:23:24Z → 1977-09-17T02:14:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 16th, 12:23–13:11 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 16 s < 300 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Zunyi, 1977: Friday 16 September.", "fact": "confidence: boundary (margin)" } ], "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": "1977-09-16", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-16", "confidence": "determinate" } ], "quote": "In Zunyi, Gaṇeśa Caturthī 1977 falls on Friday 16 September. Caturthī runs from 12:23 on Fri 16 Sep to 10:15 on Sat 17 Sep and covers all of madhyāhna that midday. It is 0 min 16 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-16", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 16, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1977-09-15T14:21:06+08:00", "utc": "1977-09-15T06:21:06Z", "ms": 243152466087.13812 }, "end": { "local": "1977-09-16T12:23:24+08:00", "utc": "1977-09-16T04:23:24Z", "ms": 243231803937.59116 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-15T14:21:06+08:00", "utc": "1977-09-15T06:21:06Z", "ms": 243152466087.13812 }, "end": { "local": "1977-09-16T12:23:24+08:00", "utc": "1977-09-16T04:23:24Z", "ms": 243231803937.59116 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-09-15", "window": { "start": { "local": "1977-09-15T12:23:30+08:00", "utc": "1977-09-15T04:23:30Z", "ms": 243145409572.85577 }, "end": { "local": "1977-09-15T13:11:30+08:00", "utc": "1977-09-15T05:11:30Z", "ms": 243148289572.85577 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-09-16", "window": { "start": { "local": "1977-09-16T12:23:08+08:00", "utc": "1977-09-16T04:23:08Z", "ms": 243231788333.833 }, "end": { "local": "1977-09-16T13:11:08+08:00", "utc": "1977-09-16T05:11:08Z", "ms": 243234668333.833 } }, "covered_min": 0, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 14:21 on Thu 15 Sep to 12:23 on Fri 16 Sep.", "fact": "1977-09-15T06:21:06Z → 1977-09-16T04:23:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 15th, 12:23–13:11 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16 s < 300 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Zunyi, 1977: Friday 16 September.", "fact": "confidence: boundary (margin)" } ], "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": "1977-09-16", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-16", "confidence": "determinate" } ], "quote": "In Zunyi, Haritālikā Vrata (Hartalika Teej) 1977 falls on Friday 16 September. Tṛtīyā runs from 14:21 on Thu 15 Sep to 12:23 on Fri 16 Sep and covers 0 of 48 minutes of madhyāhna that midday. It is 0 min 16 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7686, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1977-09-17T10:14:41+08:00", "utc": "1977-09-17T02:14:41Z", "ms": 243310481064.91248 }, "end": { "local": "1977-09-18T07:59:29+08:00", "utc": "1977-09-17T23:59:29Z", "ms": 243388769383.8801 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-17T10:14:41+08:00", "utc": "1977-09-17T02:14:41Z", "ms": 243310481064.91248 }, "end": { "local": "1977-09-18T07:59:29+08:00", "utc": "1977-09-17T23:59:29Z", "ms": 243388769383.8801 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-09-17", "window": { "start": { "local": "1977-09-17T12:22:47+08:00", "utc": "1977-09-17T04:22:47Z", "ms": 243318167064.86133 }, "end": { "local": "1977-09-17T13:10:47+08:00", "utc": "1977-09-17T05:10:47Z", "ms": 243321047064.86133 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-09-18", "window": { "start": { "local": "1977-09-18T12:22:26+08:00", "utc": "1977-09-18T04:22:26Z", "ms": 243404545782.3977 }, "end": { "local": "1977-09-18T13:10:26+08:00", "utc": "1977-09-18T05:10:26Z", "ms": 243407425782.3977 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 10:15 on Sat 17 Sep to 07:59 on Sun 18 Sep.", "fact": "1977-09-17T02:14:41Z → 1977-09-17T23:59:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 17th, 12:22–13:10 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 7686 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Zunyi, 1977: Saturday 17 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rishi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Rsi pancami (madhyahnavyapini) — If occurs on two successive days, it is to be observed according to Madhava on the 1st day and according to Hemadri and Divodasa on the 2nd day" } ], "kaala": "madhyahna", "priority": "disputed", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-17", "confidence": "determinate" } ], "quote": "In Zunyi, Ṛṣi Pañcamī 1977 falls on Saturday 17 September. Pañcamī runs from 10:15 on Sat 17 Sep to 07:59 on Sun 18 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15776, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1977-09-18T07:59:29+08:00", "utc": "1977-09-17T23:59:29Z", "ms": 243388769383.8801 }, "end": { "local": "1977-09-19T05:41:47+08:00", "utc": "1977-09-18T21:41:47Z", "ms": 243466906535.65234 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-18T07:59:29+08:00", "utc": "1977-09-17T23:59:29Z", "ms": 243388769383.8801 }, "end": { "local": "1977-09-19T05:41:47+08:00", "utc": "1977-09-18T21:41:47Z", "ms": 243466906535.65234 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-09-18", "window": { "start": { "local": "1977-09-18T12:22:26+08:00", "utc": "1977-09-18T04:22:26Z", "ms": 243404545782.3977 }, "end": { "local": "1977-09-18T13:10:26+08:00", "utc": "1977-09-18T05:10:26Z", "ms": 243407425782.3977 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-09-19", "window": { "start": { "local": "1977-09-19T12:22:05+08:00", "utc": "1977-09-19T04:22:05Z", "ms": 243490924503.81024 }, "end": { "local": "1977-09-19T13:10:05+08:00", "utc": "1977-09-19T05:10:05Z", "ms": 243493804503.81024 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 07:59 on Sun 18 Sep to 05:42 on Mon 19 Sep.", "fact": "1977-09-17T23:59:29Z → 1977-09-18T21:41:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 18th, 12:22–13:10 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15776 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Zunyi, 1977: Sunday 18 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi-bhadrapada", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Surya sasthi (paraviddha), Lolarka sasthi" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-18", "confidence": "determinate" } ], "quote": "In Zunyi, Sūrya Ṣaṣṭhī (Bhādrapada) 1977 falls on Sunday 18 September. Ṣaṣṭhī runs from 07:59 on Sun 18 Sep to 05:42 on Mon 19 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24018, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1977-09-19T05:41:47+08:00", "utc": "1977-09-18T21:41:47Z", "ms": 243466906535.65234 }, "end": { "local": "1977-09-20T03:25:01+08:00", "utc": "1977-09-19T19:25:01Z", "ms": 243545101237.27536 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-19T05:41:47+08:00", "utc": "1977-09-18T21:41:47Z", "ms": 243466906535.65234 }, "end": { "local": "1977-09-20T03:25:01+08:00", "utc": "1977-09-19T19:25:01Z", "ms": 243545101237.27536 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-09-19", "window": { "start": { "local": "1977-09-19T12:22:05+08:00", "utc": "1977-09-19T04:22:05Z", "ms": 243490924503.81024 }, "end": { "local": "1977-09-19T13:10:05+08:00", "utc": "1977-09-19T05:10:05Z", "ms": 243493804503.81024 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-09-20", "window": { "start": { "local": "1977-09-20T12:21:43+08:00", "utc": "1977-09-20T04:21:43Z", "ms": 243577303247.54517 }, "end": { "local": "1977-09-20T13:09:43+08:00", "utc": "1977-09-20T05:09:43Z", "ms": 243580183247.54517 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 05:42 on Mon 19 Sep to 03:25 on Tue 20 Sep.", "fact": "1977-09-18T21:41:47Z → 1977-09-19T19:25:01Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 19th, 12:22–13:10 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 24018 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Zunyi, 1977: Monday 19 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "muktabharana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Muktabharana vrata (purvaviddha), Lalita saptami (Bengal & Orissa)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-19", "confidence": "determinate" } ], "quote": "In Zunyi, Muktābharaṇa Vrata 1977 falls on Monday 19 September. Saptamī runs from 05:42 on Mon 19 Sep to 03:25 on Tue 20 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32202, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1977-09-20T03:25:01+08:00", "utc": "1977-09-19T19:25:01Z", "ms": 243545101237.27536 }, "end": { "local": "1977-09-21T01:12:23+08:00", "utc": "1977-09-20T17:12:23Z", "ms": 243623543311.05508 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-20T03:25:01+08:00", "utc": "1977-09-19T19:25:01Z", "ms": 243545101237.27536 }, "end": { "local": "1977-09-21T01:12:23+08:00", "utc": "1977-09-20T17:12:23Z", "ms": 243623543311.05508 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-09-20", "window": { "start": { "local": "1977-09-20T12:21:43+08:00", "utc": "1977-09-20T04:21:43Z", "ms": 243577303247.54517 }, "end": { "local": "1977-09-20T13:09:43+08:00", "utc": "1977-09-20T05:09:43Z", "ms": 243580183247.54517 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-09-21", "window": { "start": { "local": "1977-09-21T12:21:22+08:00", "utc": "1977-09-21T04:21:22Z", "ms": 243663682033.2121 }, "end": { "local": "1977-09-21T13:09:22+08:00", "utc": "1977-09-21T05:09:22Z", "ms": 243666562033.2121 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 03:25 on Tue 20 Sep to 01:12 on Wed 21 Sep.", "fact": "1977-09-19T19:25:01Z → 1977-09-20T17:12:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 20th, 12:21–13:09 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32202 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Zunyi, 1977: Tuesday 20 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": "1977-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-20", "confidence": "determinate" } ], "quote": "In Zunyi, Rādhāṣṭamī 1977 falls on Tuesday 20 September. Aṣṭamī runs from 03:25 on Tue 20 Sep to 01:12 on Wed 21 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-09-23", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34168, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-09-22T21:11:48+08:00", "utc": "1977-09-22T13:11:48Z", "ms": 243781907814.97354 }, "end": { "local": "1977-09-23T19:30:22+08:00", "utc": "1977-09-23T11:30:22Z", "ms": 243862221604.51718 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-22T21:11:48+08:00", "utc": "1977-09-22T13:11:48Z", "ms": 243781907814.97354 }, "end": { "local": "1977-09-23T19:30:22+08:00", "utc": "1977-09-23T11:30:22Z", "ms": 243862221604.51718 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-09-23", "window": { "start": { "local": "1977-09-23T06:41:16+08:00", "utc": "1977-09-22T22:41:16Z", "ms": 243816076028.50616 }, "end": { "local": "1977-09-23T06:41:16+08:00", "utc": "1977-09-22T22:41:16Z", "ms": 243816076028.50616 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-09-24", "window": { "start": { "local": "1977-09-24T06:41:44+08:00", "utc": "1977-09-23T22:41:44Z", "ms": 243902504053.3832 }, "end": { "local": "1977-09-24T06:41:44+08:00", "utc": "1977-09-23T22:41:44Z", "ms": 243902504053.3832 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:12 on Thu 22 Sep to 19:30 on Fri 23 Sep.", "fact": "1977-09-22T13:11:48Z → 1977-09-23T11:30:22Z" }, { "step": "kaala", "text": "Sunrise is at 06:41 on the 23rd and 06:42 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 34168 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Zunyi, 1977: Friday 23 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": "1977-09-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-23", "confidence": "determinate" } ], "quote": "In Zunyi, Parivartanī Ekādaśī 1977 falls on Friday 23 September. Ekādaśī runs from 21:12 on Thu 22 Sep to 19:30 on Fri 23 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-09-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17879, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1977-09-23T19:30:22+08:00", "utc": "1977-09-23T11:30:22Z", "ms": 243862221604.51718 }, "end": { "local": "1977-09-24T18:06:18+08:00", "utc": "1977-09-24T10:06:18Z", "ms": 243943578016.5715 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-23T19:30:22+08:00", "utc": "1977-09-23T11:30:22Z", "ms": 243862221604.51718 }, "end": { "local": "1977-09-24T18:06:18+08:00", "utc": "1977-09-24T10:06:18Z", "ms": 243943578016.5715 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-09-23", "window": { "start": { "local": "1977-09-23T12:20:40+08:00", "utc": "1977-09-23T04:20:40Z", "ms": 243836439814.5489 }, "end": { "local": "1977-09-23T13:08:40+08:00", "utc": "1977-09-23T05:08:40Z", "ms": 243839319814.5489 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-09-24", "window": { "start": { "local": "1977-09-24T12:20:19+08:00", "utc": "1977-09-24T04:20:19Z", "ms": 243922818854.93585 }, "end": { "local": "1977-09-24T13:08:19+08:00", "utc": "1977-09-24T05:08:19Z", "ms": 243925698854.93585 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 19:30 on Fri 23 Sep to 18:06 on Sat 24 Sep.", "fact": "1977-09-23T11:30:22Z → 1977-09-24T10:06:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:21–13:09 on the 23rd, 12:20–13:08 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17879 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Zunyi, 1977: Saturday 24 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": "1977-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-24", "confidence": "determinate" } ], "quote": "In Zunyi, Vāmana Jayantī 1977 falls on Saturday 24 September. Dvādaśī runs from 19:30 on Fri 23 Sep to 18:06 on Sat 24 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/pradosha-vrata?on=1977-09-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2436, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-09-24T18:06:18+08:00", "utc": "1977-09-24T10:06:18Z", "ms": 243943578016.5715 }, "end": { "local": "1977-09-25T17:03:32+08:00", "utc": "1977-09-25T09:03:32Z", "ms": 244026212065.8815 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-24T18:06:18+08:00", "utc": "1977-09-24T10:06:18Z", "ms": 243943578016.5715 }, "end": { "local": "1977-09-25T17:03:32+08:00", "utc": "1977-09-25T09:03:32Z", "ms": 244026212065.8815 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-09-24", "window": { "start": { "local": "1977-09-24T18:46:54+08:00", "utc": "1977-09-24T10:46:54Z", "ms": 243946013656.4885 }, "end": { "local": "1977-09-24T20:22:16+08:00", "utc": "1977-09-24T12:22:16Z", "ms": 243951736130.1428 } }, "covered_min": 95, "window_min": 95, "qualifies": true }, { "local_date": "1977-09-25", "window": { "start": { "local": "1977-09-25T18:45:44+08:00", "utc": "1977-09-25T10:45:44Z", "ms": 244032343843.82886 }, "end": { "local": "1977-09-25T20:21:19+08:00", "utc": "1977-09-25T12:21:19Z", "ms": 244038079399.73306 } }, "covered_min": 0, "window_min": 96, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:06 on Sat 24 Sep to 17:04 on Sun 25 Sep.", "fact": "1977-09-24T10:06:18Z → 1977-09-25T09:03:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:47–20:22 on the 24th, 18:46–20:21 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 95 of 95 minutes on the 24th and 0 of 96 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 2436 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Saturday 24 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": "1977-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-24", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Saturday 24 September. Trayodaśī runs from 18:06 on Sat 24 Sep to 17:04 on Sun 25 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-09-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26338, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-09-25T17:03:32+08:00", "utc": "1977-09-25T09:03:32Z", "ms": 244026212065.8815 }, "end": { "local": "1977-09-26T16:26:01+08:00", "utc": "1977-09-26T08:26:01Z", "ms": 244110361146.59448 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1977-09-25T17:03:32+08:00", "utc": "1977-09-25T09:03:32Z", "ms": 244026212065.8815 }, "end": { "local": "1977-09-26T16:26:01+08:00", "utc": "1977-09-26T08:26:01Z", "ms": 244110361146.59448 } }, "kaala": "udaya-3", "days": [ { "local_date": "1977-09-25", "window": { "start": { "local": "1977-09-25T06:42:12+08:00", "utc": "1977-09-24T22:42:12Z", "ms": 243988932208.89572 }, "end": { "local": "1977-09-25T09:06:55+08:00", "utc": "1977-09-25T01:06:55Z", "ms": 243997614535.88235 } }, "covered_min": 0, "window_min": 145, "qualifies": false }, { "local_date": "1977-09-26", "window": { "start": { "local": "1977-09-26T06:42:41+08:00", "utc": "1977-09-25T22:42:41Z", "ms": 244075360513.11032 }, "end": { "local": "1977-09-26T09:07:03+08:00", "utc": "1977-09-26T01:07:03Z", "ms": 244084023249.05786 } }, "covered_min": 144, "window_min": 144, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:04 on Sun 25 Sep to 16:26 on Mon 26 Sep.", "fact": "1977-09-25T09:03:32Z → 1977-09-26T08:26:01Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:42–09:07 on the 25th, 06:43–09:07 on the 26th.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must hold through the first three muhūrtas after sunrise. It covers 0 of 145 minutes on the 25th and 144 of 144 on the 26th.", "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 26338 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Zunyi, 1977: Monday 26 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": "1977-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-26", "confidence": "determinate" } ], "quote": "In Zunyi, Ananta Caturdaśī 1977 falls on Monday 26 September. Caturdaśī runs from 17:04 on Sun 25 Sep to 16:26 on Mon 26 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-09-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-09-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1064, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-09-30T19:04:41+08:00", "utc": "1977-09-30T11:04:41Z", "ms": 244465480511.4916 }, "end": { "local": "1977-10-01T21:01:01+08:00", "utc": "1977-10-01T13:01:01Z", "ms": 244558860898.08698 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-09-30T19:04:41+08:00", "utc": "1977-09-30T11:04:41Z", "ms": 244465480511.4916 }, "end": { "local": "1977-10-01T21:01:01+08:00", "utc": "1977-10-01T13:01:01Z", "ms": 244558860898.08698 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-09-30", "window": { "start": { "local": "1977-09-30T20:37:37+08:00", "utc": "1977-09-30T12:37:37Z", "ms": 244471056548.07846 }, "end": { "local": "1977-09-30T20:37:37+08:00", "utc": "1977-09-30T12:37:37Z", "ms": 244471056548.07846 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-10-01", "window": { "start": { "local": "1977-10-01T21:18:45+08:00", "utc": "1977-10-01T13:18:45Z", "ms": 244559925243.69455 }, "end": { "local": "1977-10-01T21:18:45+08:00", "utc": "1977-10-01T13:18:45Z", "ms": 244559925243.69455 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:05 on Fri 30 Sep to 21:01 on Sat 1 Oct.", "fact": "1977-09-30T11:04:41Z → 1977-10-01T13:01:01Z" }, { "step": "kaala", "text": "Moonrise is at 20:38 on the 30th and 21:19 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 30th and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1064 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Friday 30 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-09-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-09-30", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Friday 30 September. Caturthī runs from 19:05 on Fri 30 Sep to 21:01 on Sat 1 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-09-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4587, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1977-10-02T23:18:22+08:00", "utc": "1977-10-02T15:18:22Z", "ms": 244653502464.3184 }, "end": { "local": "1977-10-04T01:46:25+08:00", "utc": "1977-10-03T17:46:25Z", "ms": 244748784872.06357 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-02T23:18:22+08:00", "utc": "1977-10-02T15:18:22Z", "ms": 244653502464.3184 }, "end": { "local": "1977-10-04T01:46:25+08:00", "utc": "1977-10-03T17:46:25Z", "ms": 244748784872.06357 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-10-02", "window": { "start": { "local": "1977-10-02T22:01:56+08:00", "utc": "1977-10-02T14:01:56Z", "ms": 244648915961.35345 }, "end": { "local": "1977-10-02T22:01:56+08:00", "utc": "1977-10-02T14:01:56Z", "ms": 244648915961.35345 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-10-03", "window": { "start": { "local": "1977-10-03T22:47:20+08:00", "utc": "1977-10-03T14:47:20Z", "ms": 244738039971.33002 }, "end": { "local": "1977-10-03T22:47:20+08:00", "utc": "1977-10-03T14:47:20Z", "ms": 244738039971.33002 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 23:18 on Sun 2 Oct to 01:46 on Tue 4 Oct.", "fact": "1977-10-02T15:18:22Z → 1977-10-03T17:46:25Z" }, { "step": "kaala", "text": "Moonrise is at 22:02 on the 2nd and 22:47 on the 3rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 2nd and is on the 3rd.", "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 4587 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Zunyi, 1977: Monday 3 October.", "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": "1977-10-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-03", "confidence": "determinate" } ], "quote": "In Zunyi, Candra Ṣaṣṭhī 1977 falls on Monday 3 October. Ṣaṣṭhī runs from 23:18 on Sun 2 Oct to 01:46 on Tue 4 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28773, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1977-10-05T04:12:32+08:00", "utc": "1977-10-04T20:12:32Z", "ms": 244843952317.18906 }, "end": { "local": "1977-10-06T06:23:28+08:00", "utc": "1977-10-05T22:23:28Z", "ms": 244938207524.32068 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-05T04:12:32+08:00", "utc": "1977-10-04T20:12:32Z", "ms": 244843952317.18906 }, "end": { "local": "1977-10-06T06:23:28+08:00", "utc": "1977-10-05T22:23:28Z", "ms": 244938207524.32068 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-10-04", "window": { "start": { "local": "1977-10-04T18:35:26+08:00", "utc": "1977-10-04T10:35:26Z", "ms": 244809326436.99988 }, "end": { "local": "1977-10-04T20:13:00+08:00", "utc": "1977-10-04T12:13:00Z", "ms": 244815179562.52917 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "1977-10-05", "window": { "start": { "local": "1977-10-05T18:34:20+08:00", "utc": "1977-10-05T10:34:20Z", "ms": 244895659594.7864 }, "end": { "local": "1977-10-05T20:12:06+08:00", "utc": "1977-10-05T12:12:06Z", "ms": 244901525730.84842 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:13 on Wed 5 Oct to 06:23 on Thu 6 Oct.", "fact": "1977-10-04T20:12:32Z → 1977-10-05T22:23:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:35–20:13 on the 4th, 18:34–20:12 on the 5th.", "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 98 minutes on the 4th and 98 of 98 on the 5th.", "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 28773 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Zunyi, 1977: Wednesday 5 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "jitashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-05", "confidence": "determinate" } ], "quote": "In Zunyi, Jitāṣṭamī (Jitiya) 1977 falls on Wednesday 5 October. Aṣṭamī runs from 04:13 on Wed 5 Oct to 06:23 on Thu 6 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16654, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1977-10-05T04:12:32+08:00", "utc": "1977-10-04T20:12:32Z", "ms": 244843952317.18906 }, "end": { "local": "1977-10-06T06:23:28+08:00", "utc": "1977-10-05T22:23:28Z", "ms": 244938207524.32068 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-05T04:12:32+08:00", "utc": "1977-10-04T20:12:32Z", "ms": 244843952317.18906 }, "end": { "local": "1977-10-06T06:23:28+08:00", "utc": "1977-10-05T22:23:28Z", "ms": 244938207524.32068 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-10-04", "window": { "start": { "local": "1977-10-04T23:34:58+08:00", "utc": "1977-10-04T15:34:58Z", "ms": 244827298326.2284 }, "end": { "local": "1977-10-04T23:34:58+08:00", "utc": "1977-10-04T15:34:58Z", "ms": 244827298326.2284 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-10-05", "window": { "start": { "local": "1977-10-06T00:24:44+08:00", "utc": "1977-10-05T16:24:44Z", "ms": 244916683944.61594 }, "end": { "local": "1977-10-06T00:24:44+08:00", "utc": "1977-10-05T16:24:44Z", "ms": 244916683944.61594 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:13 on Wed 5 Oct to 06:23 on Thu 6 Oct.", "fact": "1977-10-04T20:12:32Z → 1977-10-05T22:23:28Z" }, { "step": "kaala", "text": "Moonrise is at 23:35 on the 4th and 00:25 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 4th and is on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16654 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Zunyi, 1977: Wednesday 5 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalakshmi-vrata-samapana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-05", "confidence": "determinate" } ], "quote": "In Zunyi, Mahālakṣmī Vrata Samāpana 1977 falls on Wednesday 5 October. Aṣṭamī runs from 04:13 on Wed 5 Oct to 06:23 on Thu 6 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-10-09", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8723, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-10-08T09:14:01+08:00", "utc": "1977-10-08T01:14:01Z", "ms": 245121241120.6392 }, "end": { "local": "1977-10-09T09:38:47+08:00", "utc": "1977-10-09T01:38:47Z", "ms": 245209126588.8054 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-08T09:14:01+08:00", "utc": "1977-10-08T01:14:01Z", "ms": 245121241120.6392 }, "end": { "local": "1977-10-09T09:38:47+08:00", "utc": "1977-10-09T01:38:47Z", "ms": 245209126588.8054 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-10-08", "window": { "start": { "local": "1977-10-08T06:48:38+08:00", "utc": "1977-10-07T22:48:38Z", "ms": 245112518067.86624 }, "end": { "local": "1977-10-08T06:48:38+08:00", "utc": "1977-10-07T22:48:38Z", "ms": 245112518067.86624 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-10-09", "window": { "start": { "local": "1977-10-09T06:49:10+08:00", "utc": "1977-10-08T22:49:10Z", "ms": 245198949804.95612 }, "end": { "local": "1977-10-09T06:49:10+08:00", "utc": "1977-10-08T22:49:10Z", "ms": 245198949804.95612 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:14 on Sat 8 Oct to 09:39 on Sun 9 Oct.", "fact": "1977-10-08T01:14:01Z → 1977-10-09T01:38:47Z" }, { "step": "kaala", "text": "Sunrise is at 06:49 on the 8th and 06:49 on the 9th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 8th and is on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8723 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Zunyi, 1977: Sunday 9 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": "1977-10-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-09", "confidence": "determinate" } ], "quote": "In Zunyi, Indirā Ekādaśī 1977 falls on Sunday 9 October. Ekādaśī runs from 09:14 on Sat 8 Oct to 09:39 on Sun 9 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-10-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-10-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32951, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-10-10T09:19:42+08:00", "utc": "1977-10-10T01:19:42Z", "ms": 245294382044.9327 }, "end": { "local": "1977-10-11T08:18:39+08:00", "utc": "1977-10-11T00:18:39Z", "ms": 245377118597.1144 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-10T09:19:42+08:00", "utc": "1977-10-10T01:19:42Z", "ms": 245294382044.9327 }, "end": { "local": "1977-10-11T08:18:39+08:00", "utc": "1977-10-11T00:18:39Z", "ms": 245377118597.1144 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-10-10", "window": { "start": { "local": "1977-10-10T18:28:53+08:00", "utc": "1977-10-10T10:28:53Z", "ms": 245327332807.87155 }, "end": { "local": "1977-10-10T20:07:44+08:00", "utc": "1977-10-10T12:07:44Z", "ms": 245333263679.56366 } }, "covered_min": 99, "window_min": 99, "qualifies": true }, { "local_date": "1977-10-11", "window": { "start": { "local": "1977-10-11T18:27:49+08:00", "utc": "1977-10-11T10:27:49Z", "ms": 245413669124.03555 }, "end": { "local": "1977-10-11T20:06:53+08:00", "utc": "1977-10-11T12:06:53Z", "ms": 245419612862.60403 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:20 on Mon 10 Oct to 08:19 on Tue 11 Oct.", "fact": "1977-10-10T01:19:42Z → 1977-10-11T00:18:39Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:29–20:08 on the 10th, 18:28–20:07 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 99 of 99 minutes on the 10th and 0 of 99 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32951 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Monday 10 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": "1977-10-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-10", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Monday 10 October. Trayodaśī runs from 09:20 on Mon 10 Oct to 08:19 on Tue 11 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-10-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shivaratri?on=1977-10-11", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20212, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-10-11T08:18:39+08:00", "utc": "1977-10-11T00:18:39Z", "ms": 245377118597.1144 }, "end": { "local": "1977-10-12T06:40:10+08:00", "utc": "1977-10-11T22:40:10Z", "ms": 245457609821.61835 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-11T08:18:39+08:00", "utc": "1977-10-11T00:18:39Z", "ms": 245377118597.1144 }, "end": { "local": "1977-10-12T06:40:10+08:00", "utc": "1977-10-11T22:40:10Z", "ms": 245457609821.61835 } }, "kaala": "nishita", "days": [ { "local_date": "1977-10-10", "window": { "start": { "local": "1977-10-11T00:15:34+08:00", "utc": "1977-10-10T16:15:34Z", "ms": 245348133576.71698 }, "end": { "local": "1977-10-11T01:03:34+08:00", "utc": "1977-10-10T17:03:34Z", "ms": 245351013576.71698 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-10-11", "window": { "start": { "local": "1977-10-12T00:15:18+08:00", "utc": "1977-10-11T16:15:18Z", "ms": 245434518143.66736 }, "end": { "local": "1977-10-12T01:03:18+08:00", "utc": "1977-10-11T17:03:18Z", "ms": 245437398143.66736 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:19 on Tue 11 Oct to 06:40 on Wed 12 Oct.", "fact": "1977-10-11T00:18:39Z → 1977-10-11T22:40:10Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:16–01:04 on the 10th, 00:15–01:03 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20212 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Tuesday 11 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": "1977-10-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-11", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Tuesday 11 October. Caturdaśī runs from 08:19 on Tue 11 Oct to 06:40 on Wed 12 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-10-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25693, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1977-10-12T06:40:10+08:00", "utc": "1977-10-11T22:40:10Z", "ms": 245457609821.61835 }, "end": { "local": "1977-10-13T04:30:41+08:00", "utc": "1977-10-12T20:30:41Z", "ms": 245536241353.75812 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-12T06:40:10+08:00", "utc": "1977-10-11T22:40:10Z", "ms": 245457609821.61835 }, "end": { "local": "1977-10-13T04:30:41+08:00", "utc": "1977-10-12T20:30:41Z", "ms": 245536241353.75812 } }, "kaala": "aparahna", "days": [ { "local_date": "1977-10-12", "window": { "start": { "local": "1977-10-12T13:48:22+08:00", "utc": "1977-10-12T05:48:22Z", "ms": 245483302499.94205 }, "end": { "local": "1977-10-12T16:07:34+08:00", "utc": "1977-10-12T08:07:34Z", "ms": 245491654278.823 } }, "covered_min": 139, "window_min": 139, "qualifies": true }, { "local_date": "1977-10-13", "window": { "start": { "local": "1977-10-13T13:47:58+08:00", "utc": "1977-10-13T05:47:58Z", "ms": 245569678321.08548 }, "end": { "local": "1977-10-13T16:06:51+08:00", "utc": "1977-10-13T08:06:51Z", "ms": 245578010977.00784 } }, "covered_min": 0, "window_min": 139, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 06:40 on Wed 12 Oct to 04:31 on Thu 13 Oct.", "fact": "1977-10-11T22:40:10Z → 1977-10-12T20:30:41Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:48–16:08 on the 12th, 13:48–16:07 on the 13th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 139 of 139 minutes on the 12th and 0 of 139 on the 13th.", "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 25693 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Zunyi, 1977: Wednesday 12 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalaya-amavasya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Mahalaya amavasya (aparahnavyapini)" } ], "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.", "kaala": "aparahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-12", "confidence": "determinate" } ], "quote": "In Zunyi, Mahālaya Amāvāsyā 1977 falls on Wednesday 12 October. Amāvasyā runs from 06:40 on Wed 12 Oct to 04:31 on Thu 13 Oct and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27831, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1977-10-13T04:30:41+08:00", "utc": "1977-10-12T20:30:41Z", "ms": 245536241353.75812 }, "end": { "local": "1977-10-14T01:57:46+08:00", "utc": "1977-10-13T17:57:46Z", "ms": 245613465996.88528 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-13T04:30:41+08:00", "utc": "1977-10-12T20:30:41Z", "ms": 245536241353.75812 }, "end": { "local": "1977-10-14T01:57:46+08:00", "utc": "1977-10-13T17:57:46Z", "ms": 245613465996.88528 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-10-13", "window": { "start": { "local": "1977-10-13T12:14:32+08:00", "utc": "1977-10-13T04:14:32Z", "ms": 245564071993.12433 }, "end": { "local": "1977-10-13T13:02:32+08:00", "utc": "1977-10-13T05:02:32Z", "ms": 245566951993.12433 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-10-14", "window": { "start": { "local": "1977-10-14T12:14:18+08:00", "utc": "1977-10-14T04:14:18Z", "ms": 245650457896.4658 }, "end": { "local": "1977-10-14T13:02:18+08:00", "utc": "1977-10-14T05:02:18Z", "ms": 245653337896.4658 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 04:31 on Thu 13 Oct to 01:58 on Fri 14 Oct.", "fact": "1977-10-12T20:30:41Z → 1977-10-13T17:57:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 13th, 12:14–13:02 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27831 s" }, { "step": "ruling", "text": "Navarātrārambha, Zunyi, 1977: Thursday 13 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-13", "confidence": "determinate" } ], "quote": "In Zunyi, Navarātrārambha (Navratri) 1977 falls on Thursday 13 October. Pratipadā runs from 04:31 on Thu 13 Oct to 01:58 on Fri 14 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-10-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15420, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-10-15T20:13:53+08:00", "utc": "1977-10-15T12:13:53Z", "ms": 245765633234.62952 }, "end": { "local": "1977-10-16T17:18:51+08:00", "utc": "1977-10-16T09:18:51Z", "ms": 245841531024.89862 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-15T20:13:53+08:00", "utc": "1977-10-15T12:13:53Z", "ms": 245765633234.62952 }, "end": { "local": "1977-10-16T17:18:51+08:00", "utc": "1977-10-16T09:18:51Z", "ms": 245841531024.89862 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-10-15", "window": { "start": { "local": "1977-10-15T12:14:04+08:00", "utc": "1977-10-15T04:14:04Z", "ms": 245736844333.84192 }, "end": { "local": "1977-10-15T13:02:04+08:00", "utc": "1977-10-15T05:02:04Z", "ms": 245739724333.84192 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-10-16", "window": { "start": { "local": "1977-10-16T12:13:51+08:00", "utc": "1977-10-16T04:13:51Z", "ms": 245823231318.50323 }, "end": { "local": "1977-10-16T13:01:51+08:00", "utc": "1977-10-16T05:01:51Z", "ms": 245826111318.50323 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:14 on Sat 15 Oct to 17:19 on Sun 16 Oct.", "fact": "1977-10-15T12:13:53Z → 1977-10-16T09:18:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 15th, 12:14–13:02 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15420 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1977: Sunday 16 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": "1977-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-16", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1977 falls on Sunday 16 October. Caturthī runs from 20:14 on Sat 15 Oct to 17:19 on Sun 16 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-10-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7427, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1977-10-18T11:58:15+08:00", "utc": "1977-10-18T03:58:15Z", "ms": 245995095378.81796 }, "end": { "local": "1977-10-19T09:44:14+08:00", "utc": "1977-10-19T01:44:14Z", "ms": 246073453787.0541 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-18T11:58:15+08:00", "utc": "1977-10-18T03:58:15Z", "ms": 245995095378.81796 }, "end": { "local": "1977-10-19T09:44:14+08:00", "utc": "1977-10-19T01:44:14Z", "ms": 246073453787.0541 } }, "kaala": "udaya-1", "days": [ { "local_date": "1977-10-18", "window": { "start": { "local": "1977-10-18T06:54:12+08:00", "utc": "1977-10-17T22:54:12Z", "ms": 245976852003.81183 }, "end": { "local": "1977-10-18T07:39:58+08:00", "utc": "1977-10-17T23:39:58Z", "ms": 245979598001.27103 } }, "covered_min": 0, "window_min": 46, "qualifies": false }, { "local_date": "1977-10-19", "window": { "start": { "local": "1977-10-19T06:54:47+08:00", "utc": "1977-10-18T22:54:47Z", "ms": 246063287493.29028 }, "end": { "local": "1977-10-19T07:40:27+08:00", "utc": "1977-10-18T23:40:27Z", "ms": 246066027253.61642 } }, "covered_min": 46, "window_min": 46, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 11:58 on Tue 18 Oct to 09:44 on Wed 19 Oct.", "fact": "1977-10-18T03:58:15Z → 1977-10-19T01:44:14Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:54–07:40 on the 18th, 06:55–07:40 on the 19th.", "fact": "udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must hold through the first muhūrta after sunrise. It covers 0 of 46 minutes on the 18th and 46 of 46 on the 19th.", "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 7427 s" }, { "step": "ruling", "text": "Durgā Saptamī, Zunyi, 1977: Wednesday 19 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "durga-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Durga saptami (paraviddha) — covering one muhurta from sunrise" } ], "kaala": "udaya-1", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-10-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-19", "confidence": "determinate" } ], "quote": "In Zunyi, Durgā Saptamī 1977 falls on Wednesday 19 October. Saptamī runs from 11:58 on Tue 18 Oct to 09:44 on Wed 19 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8942, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1977-10-19T09:44:14+08:00", "utc": "1977-10-19T01:44:14Z", "ms": 246073453787.0541 }, "end": { "local": "1977-10-20T07:53:26+08:00", "utc": "1977-10-19T23:53:26Z", "ms": 246153206460.87564 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-19T09:44:14+08:00", "utc": "1977-10-19T01:44:14Z", "ms": 246073453787.0541 }, "end": { "local": "1977-10-20T07:53:26+08:00", "utc": "1977-10-19T23:53:26Z", "ms": 246153206460.87564 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-10-19", "window": { "start": { "local": "1977-10-19T12:13:16+08:00", "utc": "1977-10-19T04:13:16Z", "ms": 246082395695.7364 }, "end": { "local": "1977-10-19T13:01:16+08:00", "utc": "1977-10-19T05:01:16Z", "ms": 246085275695.7364 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-10-20", "window": { "start": { "local": "1977-10-20T12:13:05+08:00", "utc": "1977-10-20T04:13:05Z", "ms": 246168785012.977 }, "end": { "local": "1977-10-20T13:01:05+08:00", "utc": "1977-10-20T05:01:05Z", "ms": 246171665012.977 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 09:44 on Wed 19 Oct to 07:53 on Thu 20 Oct.", "fact": "1977-10-19T01:44:14Z → 1977-10-19T23:53:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 19th, 12:13–13:01 on the 20th.", "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 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8942 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Zunyi, 1977: Wednesday 19 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": "1977-10-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-19", "confidence": "determinate" } ], "quote": "In Zunyi, Mahāṣṭamī (Durga Ashtami) 1977 falls on Wednesday 19 October. Aṣṭamī runs from 09:44 on Wed 19 Oct to 07:53 on Thu 20 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15579, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1977-10-20T07:53:26+08:00", "utc": "1977-10-19T23:53:26Z", "ms": 246153206460.87564 }, "end": { "local": "1977-10-21T06:28:36+08:00", "utc": "1977-10-20T22:28:36Z", "ms": 246234515692.40323 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-20T07:53:26+08:00", "utc": "1977-10-19T23:53:26Z", "ms": 246153206460.87564 }, "end": { "local": "1977-10-21T06:28:36+08:00", "utc": "1977-10-20T22:28:36Z", "ms": 246234515692.40323 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-10-20", "window": { "start": { "local": "1977-10-20T12:13:05+08:00", "utc": "1977-10-20T04:13:05Z", "ms": 246168785012.977 }, "end": { "local": "1977-10-20T13:01:05+08:00", "utc": "1977-10-20T05:01:05Z", "ms": 246171665012.977 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-10-21", "window": { "start": { "local": "1977-10-21T12:12:55+08:00", "utc": "1977-10-21T04:12:55Z", "ms": 246255174953.23035 }, "end": { "local": "1977-10-21T13:00:55+08:00", "utc": "1977-10-21T05:00:55Z", "ms": 246258054953.23035 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 07:53 on Thu 20 Oct to 06:29 on Fri 21 Oct.", "fact": "1977-10-19T23:53:26Z → 1977-10-20T22:28:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 20th, 12:13–13:01 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 15579 s" }, { "step": "ruling", "text": "Mahānavamī, Zunyi, 1977: Thursday 20 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": "1977-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-20", "confidence": "determinate" } ], "quote": "In Zunyi, Mahānavamī 1977 falls on Thursday 20 October. Navamī runs from 07:53 on Thu 20 Oct to 06:29 on Fri 21 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1644, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1977-10-21T06:28:36+08:00", "utc": "1977-10-20T22:28:36Z", "ms": 246234515692.40323 }, "end": { "local": "1977-10-22T05:31:12+08:00", "utc": "1977-10-21T21:31:12Z", "ms": 246317472151.21387 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "1977-10-21T06:28:36+08:00", "utc": "1977-10-20T22:28:36Z", "ms": 246234515692.40323 }, "end": { "local": "1977-10-21T09:03:08+08:00", "utc": "1977-10-21T01:03:08Z", "ms": 246243788041.76184 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "1977-10-20T09:43:48+08:00", "utc": "1977-10-20T01:43:48Z", "ms": 246159827948.65085 }, "end": { "local": "1977-10-21T09:03:08+08:00", "utc": "1977-10-21T01:03:08Z", "ms": 246243788041.76184 } } }, "kaala": "daytime", "days": [ { "local_date": "1977-10-20", "window": { "start": { "local": "1977-10-20T06:55:23+08:00", "utc": "1977-10-19T22:55:23Z", "ms": 246149723377.3823 }, "end": { "local": "1977-10-20T18:18:47+08:00", "utc": "1977-10-20T10:18:47Z", "ms": 246190726648.57166 } }, "covered_min": 0, "window_min": 683, "qualifies": false }, { "local_date": "1977-10-21", "window": { "start": { "local": "1977-10-21T06:56:00+08:00", "utc": "1977-10-20T22:56:00Z", "ms": 246236159660.9736 }, "end": { "local": "1977-10-21T18:17:50+08:00", "utc": "1977-10-21T10:17:50Z", "ms": 246277070245.48712 } }, "covered_min": 127, "window_min": 682, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 06:29 on Fri 21 Oct to 05:31 on Sat 22 Oct, and Śravaṇa from 09:44 on Thu 20 Oct to 09:03 on Fri 21 Oct. They are together from 06:29 on Fri 21 Oct to 09:03 on Fri 21 Oct.", "fact": "1977-10-20T22:28:36Z → 1977-10-21T01:03:08Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 06:55–18:19 on the 20th, 06:56–18:18 on the 21st.", "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 683 minutes on the 20th and 127 of 682 on the 21st.", "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 1644 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Zunyi, 1977: Friday 21 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": "1977-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-21", "confidence": "determinate" } ], "quote": "In Zunyi, Vijayā Daśamī (Dussehra) 1977 falls on Friday 21 October. Daśamī runs from 06:29 on Fri 21 Oct to 05:31 on Sat 22 Oct and is with Śravaṇa in the day time that day, for 127 minutes.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-10-22", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5124, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-10-22T05:31:12+08:00", "utc": "1977-10-21T21:31:12Z", "ms": 246317472151.21387 }, "end": { "local": "1977-10-23T05:01:48+08:00", "utc": "1977-10-22T21:01:48Z", "ms": 246402107516.91068 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-22T05:31:12+08:00", "utc": "1977-10-21T21:31:12Z", "ms": 246317472151.21387 }, "end": { "local": "1977-10-23T05:01:48+08:00", "utc": "1977-10-22T21:01:48Z", "ms": 246402107516.91068 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-10-22", "window": { "start": { "local": "1977-10-22T06:56:36+08:00", "utc": "1977-10-21T22:56:36Z", "ms": 246322596349.52075 }, "end": { "local": "1977-10-22T06:56:36+08:00", "utc": "1977-10-21T22:56:36Z", "ms": 246322596349.52075 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-10-23", "window": { "start": { "local": "1977-10-23T06:57:13+08:00", "utc": "1977-10-22T22:57:13Z", "ms": 246409033448.80292 }, "end": { "local": "1977-10-23T06:57:13+08:00", "utc": "1977-10-22T22:57:13Z", "ms": 246409033448.80292 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:31 on Sat 22 Oct to 05:02 on Sun 23 Oct.", "fact": "1977-10-21T21:31:12Z → 1977-10-22T21:01:48Z" }, { "step": "kaala", "text": "Sunrise is at 06:57 on the 22nd and 06:57 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 22nd and is not on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5124 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Zunyi, 1977: Saturday 22 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": "1977-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-22", "confidence": "determinate" } ], "quote": "In Zunyi, Pāśāṅkuśā Ekādaśī 1977 falls on Saturday 22 October. Ekādaśī runs from 05:31 on Sat 22 Oct to 05:02 on Sun 23 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-10-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-10-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32557, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-10-24T05:00:12+08:00", "utc": "1977-10-23T21:00:12Z", "ms": 246488411846.63785 }, "end": { "local": "1977-10-25T05:25:51+08:00", "utc": "1977-10-24T21:25:51Z", "ms": 246576350570.94235 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1977-10-24T05:00:12+08:00", "utc": "1977-10-23T21:00:12Z", "ms": 246488411846.63785 }, "end": { "local": "1977-10-25T05:25:51+08:00", "utc": "1977-10-24T21:25:51Z", "ms": 246576350570.94235 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-10-23", "window": { "start": { "local": "1977-10-23T18:16:00+08:00", "utc": "1977-10-23T10:16:00Z", "ms": 246449760096.2995 }, "end": { "local": "1977-10-23T19:57:35+08:00", "utc": "1977-10-23T11:57:35Z", "ms": 246455854878.74487 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "1977-10-24", "window": { "start": { "local": "1977-10-24T18:15:06+08:00", "utc": "1977-10-24T10:15:06Z", "ms": 246536106409.8553 }, "end": { "local": "1977-10-24T19:56:53+08:00", "utc": "1977-10-24T11:56:53Z", "ms": 246542213408.88898 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:00 on Mon 24 Oct to 05:26 on Tue 25 Oct.", "fact": "1977-10-23T21:00:12Z → 1977-10-24T21:25:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:16–19:58 on the 23rd, 18:15–19:57 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 102 minutes on the 23rd and 102 of 102 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32557 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Monday 24 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": "1977-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-24", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Monday 24 October. Trayodaśī runs from 05:00 on Mon 24 Oct to 05:26 on Tue 25 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-10-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19194, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-10-30T13:38:24+08:00", "utc": "1977-10-30T05:38:24Z", "ms": 247037903669.89615 }, "end": { "local": "1977-10-31T16:08:32+08:00", "utc": "1977-10-31T08:08:32Z", "ms": 247133312094.7104 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-10-30T13:38:24+08:00", "utc": "1977-10-30T05:38:24Z", "ms": 247037903669.89615 }, "end": { "local": "1977-10-31T16:08:32+08:00", "utc": "1977-10-31T08:08:32Z", "ms": 247133312094.7104 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-10-30", "window": { "start": { "local": "1977-10-30T20:41:41+08:00", "utc": "1977-10-30T12:41:41Z", "ms": 247063300835.9995 }, "end": { "local": "1977-10-30T20:41:41+08:00", "utc": "1977-10-30T12:41:41Z", "ms": 247063300835.9995 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-10-31", "window": { "start": { "local": "1977-10-31T21:28:26+08:00", "utc": "1977-10-31T13:28:26Z", "ms": 247152505979.4748 }, "end": { "local": "1977-10-31T21:28:26+08:00", "utc": "1977-10-31T13:28:26Z", "ms": 247152505979.4748 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:38 on Sun 30 Oct to 16:09 on Mon 31 Oct.", "fact": "1977-10-30T05:38:24Z → 1977-10-31T08:08:32Z" }, { "step": "kaala", "text": "Moonrise is at 20:42 on the 30th and 21:28 on the 31st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 19194 s" }, { "step": "ruling", "text": "Karaka Caturthī, Zunyi, 1977: Sunday 30 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": "1977-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-30", "confidence": "determinate" } ], "quote": "In Zunyi, Karaka Caturthī (Karwa Chauth) 1977 falls on Sunday 30 October. Caturthī runs from 13:38 on Sun 30 Oct to 16:09 on Mon 31 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-10-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19194, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-10-30T13:38:24+08:00", "utc": "1977-10-30T05:38:24Z", "ms": 247037903669.89615 }, "end": { "local": "1977-10-31T16:08:32+08:00", "utc": "1977-10-31T08:08:32Z", "ms": 247133312094.7104 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-10-30T13:38:24+08:00", "utc": "1977-10-30T05:38:24Z", "ms": 247037903669.89615 }, "end": { "local": "1977-10-31T16:08:32+08:00", "utc": "1977-10-31T08:08:32Z", "ms": 247133312094.7104 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-10-30", "window": { "start": { "local": "1977-10-30T20:41:41+08:00", "utc": "1977-10-30T12:41:41Z", "ms": 247063300835.9995 }, "end": { "local": "1977-10-30T20:41:41+08:00", "utc": "1977-10-30T12:41:41Z", "ms": 247063300835.9995 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-10-31", "window": { "start": { "local": "1977-10-31T21:28:26+08:00", "utc": "1977-10-31T13:28:26Z", "ms": 247152505979.4748 }, "end": { "local": "1977-10-31T21:28:26+08:00", "utc": "1977-10-31T13:28:26Z", "ms": 247152505979.4748 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:38 on Sun 30 Oct to 16:09 on Mon 31 Oct.", "fact": "1977-10-30T05:38:24Z → 1977-10-31T08:08:32Z" }, { "step": "kaala", "text": "Moonrise is at 20:42 on the 30th and 21:28 on the 31st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19194 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Sunday 30 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": "1977-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-10-30", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Sunday 30 October. Caturthī runs from 13:38 on Sun 30 Oct to 16:09 on Mon 31 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-10-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 764, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1977-11-03T23:07:47+08:00", "utc": "1977-11-03T15:07:47Z", "ms": 247417666693.451 }, "end": { "local": "1977-11-05T00:39:45+08:00", "utc": "1977-11-04T16:39:45Z", "ms": 247509584783.00497 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-03T23:07:47+08:00", "utc": "1977-11-03T15:07:47Z", "ms": 247417666693.451 }, "end": { "local": "1977-11-05T00:39:45+08:00", "utc": "1977-11-04T16:39:45Z", "ms": 247509584783.00497 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-11-03", "window": { "start": { "local": "1977-11-03T23:59:18+08:00", "utc": "1977-11-03T15:59:18Z", "ms": 247420758213.70322 }, "end": { "local": "1977-11-03T23:59:18+08:00", "utc": "1977-11-03T15:59:18Z", "ms": 247420758213.70322 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-11-04", "window": { "start": { "local": "1977-11-05T00:52:29+08:00", "utc": "1977-11-04T16:52:29Z", "ms": 247510348663.27438 }, "end": { "local": "1977-11-05T00:52:29+08:00", "utc": "1977-11-04T16:52:29Z", "ms": 247510348663.27438 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 23:08 on Thu 3 Nov to 00:40 on Sat 5 Nov.", "fact": "1977-11-03T15:07:47Z → 1977-11-04T16:39:45Z" }, { "step": "kaala", "text": "Moonrise is at 23:59 on the 3rd and 00:52 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 764 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Zunyi, 1977: Thursday 3 November.", "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": "1977-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-03", "confidence": "determinate" } ], "quote": "In Zunyi, Ahoyī Aṣṭamī 1977 falls on Thursday 3 November. Aṣṭamī runs from 23:08 on Thu 3 Nov to 00:40 on Sat 5 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-11-07", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19878, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-11-07T01:36:03+08:00", "utc": "1977-11-06T17:36:03Z", "ms": 247685763497.26035 }, "end": { "local": "1977-11-08T00:52:27+08:00", "utc": "1977-11-07T16:52:27Z", "ms": 247769547306.4962 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-07T01:36:03+08:00", "utc": "1977-11-06T17:36:03Z", "ms": 247685763497.26035 }, "end": { "local": "1977-11-08T00:52:27+08:00", "utc": "1977-11-07T16:52:27Z", "ms": 247769547306.4962 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-11-07", "window": { "start": { "local": "1977-11-07T07:07:21+08:00", "utc": "1977-11-06T23:07:21Z", "ms": 247705641249.39554 }, "end": { "local": "1977-11-07T07:07:21+08:00", "utc": "1977-11-06T23:07:21Z", "ms": 247705641249.39554 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-11-08", "window": { "start": { "local": "1977-11-08T07:08:05+08:00", "utc": "1977-11-07T23:08:05Z", "ms": 247792085072.1205 }, "end": { "local": "1977-11-08T07:08:05+08:00", "utc": "1977-11-07T23:08:05Z", "ms": 247792085072.1205 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:36 on Mon 7 Nov to 00:52 on Tue 8 Nov.", "fact": "1977-11-06T17:36:03Z → 1977-11-07T16:52:27Z" }, { "step": "kaala", "text": "Sunrise is at 07:07 on the 7th and 07:08 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 19878 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Zunyi, 1977: Monday 7 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": "1977-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-07", "confidence": "determinate" } ], "quote": "In Zunyi, Ramā Ekādaśī 1977 falls on Monday 7 November. Ekādaśī runs from 01:36 on Mon 7 Nov to 00:52 on Tue 8 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-11-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12807, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1977-11-08T00:52:27+08:00", "utc": "1977-11-07T16:52:27Z", "ms": 247769547306.4962 }, "end": { "local": "1977-11-08T23:22:00+08:00", "utc": "1977-11-08T15:22:00Z", "ms": 247850520047.63748 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-08T00:52:27+08:00", "utc": "1977-11-07T16:52:27Z", "ms": 247769547306.4962 }, "end": { "local": "1977-11-08T23:22:00+08:00", "utc": "1977-11-08T15:22:00Z", "ms": 247850520047.63748 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-11-07", "window": { "start": { "local": "1977-11-07T18:04:29+08:00", "utc": "1977-11-07T10:04:29Z", "ms": 247745069443.92676 }, "end": { "local": "1977-11-07T19:48:58+08:00", "utc": "1977-11-07T11:48:58Z", "ms": 247751338194.3526 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "1977-11-08", "window": { "start": { "local": "1977-11-08T18:03:53+08:00", "utc": "1977-11-08T10:03:53Z", "ms": 247831433227.45908 }, "end": { "local": "1977-11-08T19:48:33+08:00", "utc": "1977-11-08T11:48:33Z", "ms": 247837712697.43494 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 00:52 on Tue 8 Nov to 23:22 on Tue 8 Nov.", "fact": "1977-11-07T16:52:27Z → 1977-11-08T15:22:00Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:04–19:49 on the 7th, 18:04–19:49 on the 8th.", "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 104 minutes on the 7th and 105 of 105 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12807 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Zunyi, 1977: Tuesday 8 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govatsa-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-08", "confidence": "determinate" } ], "quote": "In Zunyi, Govatsa Dvādaśī (Vasu Baras) 1977 falls on Tuesday 8 November. Dvādaśī runs from 00:52 on Tue 8 Nov to 23:22 on Tue 8 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4884, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-11-08T23:22:00+08:00", "utc": "1977-11-08T15:22:00Z", "ms": 247850520047.63748 }, "end": { "local": "1977-11-09T21:09:33+08:00", "utc": "1977-11-09T13:09:33Z", "ms": 247928972806.647 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-08T23:22:00+08:00", "utc": "1977-11-08T15:22:00Z", "ms": 247850520047.63748 }, "end": { "local": "1977-11-09T21:09:33+08:00", "utc": "1977-11-09T13:09:33Z", "ms": 247928972806.647 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-11-08", "window": { "start": { "local": "1977-11-08T18:03:53+08:00", "utc": "1977-11-08T10:03:53Z", "ms": 247831433227.45908 }, "end": { "local": "1977-11-08T19:48:33+08:00", "utc": "1977-11-08T11:48:33Z", "ms": 247837712697.43494 } }, "covered_min": 0, "window_min": 105, "qualifies": false }, { "local_date": "1977-11-09", "window": { "start": { "local": "1977-11-09T18:03:18+08:00", "utc": "1977-11-09T10:03:18Z", "ms": 247917798375.54218 }, "end": { "local": "1977-11-09T19:48:08+08:00", "utc": "1977-11-09T11:48:08Z", "ms": 247924088428.29953 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:22 on Tue 8 Nov to 21:10 on Wed 9 Nov.", "fact": "1977-11-08T15:22:00Z → 1977-11-09T13:09:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:04–19:49 on the 8th, 18:03–19:48 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 105 minutes on the 8th and 105 of 105 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4884 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Zunyi, 1977: Wednesday 9 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dipadana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 13 Yama dipadana (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-09", "confidence": "determinate" } ], "quote": "In Zunyi, Yama Dīpadāna 1977 falls on Wednesday 9 November. Trayodaśī runs from 23:22 on Tue 8 Nov to 21:10 on Wed 9 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/pradosha-vrata?on=1977-11-09", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4884, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-11-08T23:22:00+08:00", "utc": "1977-11-08T15:22:00Z", "ms": 247850520047.63748 }, "end": { "local": "1977-11-09T21:09:33+08:00", "utc": "1977-11-09T13:09:33Z", "ms": 247928972806.647 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-08T23:22:00+08:00", "utc": "1977-11-08T15:22:00Z", "ms": 247850520047.63748 }, "end": { "local": "1977-11-09T21:09:33+08:00", "utc": "1977-11-09T13:09:33Z", "ms": 247928972806.647 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-11-08", "window": { "start": { "local": "1977-11-08T18:03:53+08:00", "utc": "1977-11-08T10:03:53Z", "ms": 247831433227.45908 }, "end": { "local": "1977-11-08T19:48:33+08:00", "utc": "1977-11-08T11:48:33Z", "ms": 247837712697.43494 } }, "covered_min": 0, "window_min": 105, "qualifies": false }, { "local_date": "1977-11-09", "window": { "start": { "local": "1977-11-09T18:03:18+08:00", "utc": "1977-11-09T10:03:18Z", "ms": 247917798375.54218 }, "end": { "local": "1977-11-09T19:48:08+08:00", "utc": "1977-11-09T11:48:08Z", "ms": 247924088428.29953 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:22 on Tue 8 Nov to 21:10 on Wed 9 Nov.", "fact": "1977-11-08T15:22:00Z → 1977-11-09T13:09:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:04–19:49 on the 8th, 18:03–19:48 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 105 minutes on the 8th and 105 of 105 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 4884 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Wednesday 9 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": "1977-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-09", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Wednesday 9 November. Trayodaśī runs from 23:22 on Tue 8 Nov to 21:10 on Wed 9 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-11-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shivaratri?on=1977-11-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10973, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-11-09T21:09:33+08:00", "utc": "1977-11-09T13:09:33Z", "ms": 247928972806.647 }, "end": { "local": "1977-11-10T18:22:22+08:00", "utc": "1977-11-10T10:22:22Z", "ms": 248005341721.94296 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-09T21:09:33+08:00", "utc": "1977-11-09T13:09:33Z", "ms": 247928972806.647 }, "end": { "local": "1977-11-10T18:22:22+08:00", "utc": "1977-11-10T10:22:22Z", "ms": 248005341721.94296 } }, "kaala": "nishita", "days": [ { "local_date": "1977-11-09", "window": { "start": { "local": "1977-11-10T00:12:26+08:00", "utc": "1977-11-09T16:12:26Z", "ms": 247939946073.38223 }, "end": { "local": "1977-11-10T01:00:26+08:00", "utc": "1977-11-09T17:00:26Z", "ms": 247942826073.38223 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-11-10", "window": { "start": { "local": "1977-11-11T00:12:32+08:00", "utc": "1977-11-10T16:12:32Z", "ms": 248026351757.10022 }, "end": { "local": "1977-11-11T01:00:32+08:00", "utc": "1977-11-10T17:00:32Z", "ms": 248029231757.10022 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:10 on Wed 9 Nov to 18:22 on Thu 10 Nov.", "fact": "1977-11-09T13:09:33Z → 1977-11-10T10:22:22Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:12–01:00 on the 9th, 00:13–01:01 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10973 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Wednesday 9 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": "1977-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-09", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Wednesday 9 November. Caturdaśī runs from 21:10 on Wed 9 Nov to 18:22 on Thu 10 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-11-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29711, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-11-09T21:09:33+08:00", "utc": "1977-11-09T13:09:33Z", "ms": 247928972806.647 }, "end": { "local": "1977-11-10T18:22:22+08:00", "utc": "1977-11-10T10:22:22Z", "ms": 248005341721.94296 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-09T21:09:33+08:00", "utc": "1977-11-09T13:09:33Z", "ms": 247928972806.647 }, "end": { "local": "1977-11-10T18:22:22+08:00", "utc": "1977-11-10T10:22:22Z", "ms": 248005341721.94296 } }, "kaala": "arunodaya", "days": [ { "local_date": "1977-11-10", "window": { "start": { "local": "1977-11-10T05:24:44+08:00", "utc": "1977-11-09T21:24:44Z", "ms": 247958683718.46494 }, "end": { "local": "1977-11-10T07:09:34+08:00", "utc": "1977-11-09T23:09:34Z", "ms": 247964973771.2223 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "1977-11-11", "window": { "start": { "local": "1977-11-11T05:25:18+08:00", "utc": "1977-11-10T21:25:18Z", "ms": 248045118114.35236 }, "end": { "local": "1977-11-11T07:10:19+08:00", "utc": "1977-11-10T23:10:19Z", "ms": 248051418607.8986 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 21:10 on Wed 9 Nov to 18:22 on Thu 10 Nov.", "fact": "1977-11-09T13:09:33Z → 1977-11-10T10:22:22Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:25–07:10 on the 10th, 05:25–07:10 on the 11th.", "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 105 of 105 minutes on the 10th and 0 of 105 on the 11th.", "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 29711 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Zunyi, 1977: Thursday 10 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-10", "confidence": "determinate" } ], "quote": "In Zunyi, Naraka Caturdaśī (Choti Diwali) 1977 falls on Thursday 10 November. Caturdaśī runs from 21:10 on Wed 9 Nov to 18:22 on Thu 10 Nov and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1177, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1977-11-10T18:22:22+08:00", "utc": "1977-11-10T10:22:22Z", "ms": 248005341721.94296 }, "end": { "local": "1977-11-11T15:09:22+08:00", "utc": "1977-11-11T07:09:22Z", "ms": 248080162405.85574 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-10T18:22:22+08:00", "utc": "1977-11-10T10:22:22Z", "ms": 248005341721.94296 }, "end": { "local": "1977-11-11T15:09:22+08:00", "utc": "1977-11-11T07:09:22Z", "ms": 248080162405.85574 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-11-10", "window": { "start": { "local": "1977-11-10T18:02:45+08:00", "utc": "1977-11-10T10:02:45Z", "ms": 248004164906.30182 }, "end": { "local": "1977-11-10T19:47:45+08:00", "utc": "1977-11-10T11:47:45Z", "ms": 248010465399.84805 } }, "covered_min": 85, "window_min": 105, "qualifies": true }, { "local_date": "1977-11-11", "window": { "start": { "local": "1977-11-11T18:02:13+08:00", "utc": "1977-11-11T10:02:13Z", "ms": 248090532836.13257 }, "end": { "local": "1977-11-11T19:47:24+08:00", "utc": "1977-11-11T11:47:24Z", "ms": 248096843623.17493 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 18:22 on Thu 10 Nov to 15:09 on Fri 11 Nov.", "fact": "1977-11-10T10:22:22Z → 1977-11-11T07:09:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:03–19:48 on the 10th, 18:02–19:47 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 85 of 105 minutes on the 10th and 0 of 105 on the 11th.", "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 1177 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Zunyi, 1977: Thursday 10 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "diwali-lakshmi-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-10", "confidence": "determinate" } ], "quote": "In Zunyi, Lakṣmī Pūjā (Diwali) 1977 falls on Thursday 10 November. Amāvasyā runs from 18:22 on Thu 10 Nov to 15:09 on Fri 11 Nov and covers 85 of 105 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21010, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1977-11-10T18:22:22+08:00", "utc": "1977-11-10T10:22:22Z", "ms": 248005341721.94296 }, "end": { "local": "1977-11-11T15:09:22+08:00", "utc": "1977-11-11T07:09:22Z", "ms": 248080162405.85574 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-10T18:22:22+08:00", "utc": "1977-11-10T10:22:22Z", "ms": 248005341721.94296 }, "end": { "local": "1977-11-11T15:09:22+08:00", "utc": "1977-11-11T07:09:22Z", "ms": 248080162405.85574 } }, "kaala": "nishita", "days": [ { "local_date": "1977-11-10", "window": { "start": { "local": "1977-11-11T00:12:32+08:00", "utc": "1977-11-10T16:12:32Z", "ms": 248026351757.10022 }, "end": { "local": "1977-11-11T01:00:32+08:00", "utc": "1977-11-10T17:00:32Z", "ms": 248029231757.10022 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-11-11", "window": { "start": { "local": "1977-11-12T00:12:38+08:00", "utc": "1977-11-11T16:12:38Z", "ms": 248112758287.54144 }, "end": { "local": "1977-11-12T01:00:38+08:00", "utc": "1977-11-11T17:00:38Z", "ms": 248115638287.54144 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 18:22 on Thu 10 Nov to 15:09 on Fri 11 Nov.", "fact": "1977-11-10T10:22:22Z → 1977-11-11T07:09:22Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:13–01:01 on the 10th, 00:13–01:01 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21010 s" }, { "step": "ruling", "text": "Kālī Pūjā, Zunyi, 1977: Thursday 10 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-10", "confidence": "determinate" } ], "quote": "In Zunyi, Kālī Pūjā 1977 falls on Thursday 10 November. Amāvasyā runs from 18:22 on Thu 10 Nov to 15:09 on Fri 11 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10370, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1977-11-11T15:09:22+08:00", "utc": "1977-11-11T07:09:22Z", "ms": 248080162405.85574 }, "end": { "local": "1977-11-12T11:40:30+08:00", "utc": "1977-11-12T03:40:30Z", "ms": 248154030404.35904 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-11T15:09:22+08:00", "utc": "1977-11-11T07:09:22Z", "ms": 248080162405.85574 }, "end": { "local": "1977-11-12T11:40:30+08:00", "utc": "1977-11-12T03:40:30Z", "ms": 248154030404.35904 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-11-11", "window": { "start": { "local": "1977-11-11T18:02:13+08:00", "utc": "1977-11-11T10:02:13Z", "ms": 248090532836.13257 }, "end": { "local": "1977-11-11T19:47:24+08:00", "utc": "1977-11-11T11:47:24Z", "ms": 248096843623.17493 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "1977-11-12", "window": { "start": { "local": "1977-11-12T18:01:42+08:00", "utc": "1977-11-12T10:01:42Z", "ms": 248176902180.049 }, "end": { "local": "1977-11-12T19:47:03+08:00", "utc": "1977-11-12T11:47:03Z", "ms": 248183223107.91763 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 15:09 on Fri 11 Nov to 11:41 on Sat 12 Nov.", "fact": "1977-11-11T07:09:22Z → 1977-11-12T03:40:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:02–19:47 on the 11th, 18:02–19:47 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 105 of 105 minutes on the 11th and 0 of 105 on the 12th.", "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 10370 s" }, { "step": "ruling", "text": "Bali Pūjā, Zunyi, 1977: Friday 11 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-11", "confidence": "determinate" } ], "quote": "In Zunyi, Bali Pūjā 1977 falls on Friday 11 November. Pratipadā runs from 15:09 on Fri 11 Nov to 11:41 on Sat 12 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1913, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1977-11-11T15:09:22+08:00", "utc": "1977-11-11T07:09:22Z", "ms": 248080162405.85574 }, "end": { "local": "1977-11-12T11:40:30+08:00", "utc": "1977-11-12T03:40:30Z", "ms": 248154030404.35904 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-11T15:09:22+08:00", "utc": "1977-11-11T07:09:22Z", "ms": 248080162405.85574 }, "end": { "local": "1977-11-12T11:40:30+08:00", "utc": "1977-11-12T03:40:30Z", "ms": 248154030404.35904 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-11-11", "window": { "start": { "local": "1977-11-11T12:12:16+08:00", "utc": "1977-11-11T04:12:16Z", "ms": 248069535722.01556 }, "end": { "local": "1977-11-11T13:00:16+08:00", "utc": "1977-11-11T05:00:16Z", "ms": 248072415722.01556 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-11-12", "window": { "start": { "local": "1977-11-12T12:12:23+08:00", "utc": "1977-11-12T04:12:23Z", "ms": 248155942959.4997 }, "end": { "local": "1977-11-12T13:00:23+08:00", "utc": "1977-11-12T05:00:23Z", "ms": 248158822959.4997 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 15:09 on Fri 11 Nov to 11:41 on Sat 12 Nov.", "fact": "1977-11-11T07:09:22Z → 1977-11-12T03:40:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 11th, 12:12–13:00 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā 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. 104" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 1913 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Zunyi, 1977: Saturday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govardhana-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-12", "confidence": "determinate" } ], "quote": "In Zunyi, Govardhana Pūjā 1977 falls on Saturday 12 November. Pratipadā runs from 15:09 on Fri 11 Nov to 11:41 on Sat 12 Nov, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1913, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1977-11-12T11:40:30+08:00", "utc": "1977-11-12T03:40:30Z", "ms": 248154030404.35904 }, "end": { "local": "1977-11-13T08:06:09+08:00", "utc": "1977-11-13T00:06:09Z", "ms": 248227568587.1643 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-12T11:40:30+08:00", "utc": "1977-11-12T03:40:30Z", "ms": 248154030404.35904 }, "end": { "local": "1977-11-13T08:06:09+08:00", "utc": "1977-11-13T00:06:09Z", "ms": 248227568587.1643 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-11-12", "window": { "start": { "local": "1977-11-12T12:12:23+08:00", "utc": "1977-11-12T04:12:23Z", "ms": 248155942959.4997 }, "end": { "local": "1977-11-12T13:00:23+08:00", "utc": "1977-11-12T05:00:23Z", "ms": 248158822959.4997 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-11-13", "window": { "start": { "local": "1977-11-13T12:12:31+08:00", "utc": "1977-11-13T04:12:31Z", "ms": 248242351045.662 }, "end": { "local": "1977-11-13T13:00:31+08:00", "utc": "1977-11-13T05:00:31Z", "ms": 248245231045.662 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 11:41 on Sat 12 Nov to 08:06 on Sun 13 Nov.", "fact": "1977-11-12T03:40:30Z → 1977-11-13T00:06:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 12th, 12:13–13:01 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1913 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Zunyi, 1977: Saturday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dvitiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Bhratrdvitiya, Yamadvitiya (madhyahna, purvaviddha), Masyadhara (Dwat) puja (Bihar)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-12", "confidence": "determinate" } ], "quote": "In Zunyi, Yama Dvitīyā (Bhai Dooj) 1977 falls on Saturday 12 November. Dvitīyā runs from 11:41 on Sat 12 Nov to 08:06 on Sun 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3154, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1977-11-11T15:09:22+08:00", "utc": "1977-11-11T07:09:22Z", "ms": 248080162405.85574 }, "end": { "local": "1977-11-12T11:40:30+08:00", "utc": "1977-11-12T03:40:30Z", "ms": 248154030404.35904 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-11T15:09:22+08:00", "utc": "1977-11-11T07:09:22Z", "ms": 248080162405.85574 }, "end": { "local": "1977-11-12T11:40:30+08:00", "utc": "1977-11-12T03:40:30Z", "ms": 248154030404.35904 } }, "kaala": "purvahna", "days": [ { "local_date": "1977-11-11", "window": { "start": { "local": "1977-11-11T07:10:19+08:00", "utc": "1977-11-10T23:10:19Z", "ms": 248051418607.8986 }, "end": { "local": "1977-11-11T10:47:37+08:00", "utc": "1977-11-11T02:47:37Z", "ms": 248064456683.9766 } }, "covered_min": 0, "window_min": 217, "qualifies": false }, { "local_date": "1977-11-12", "window": { "start": { "local": "1977-11-12T07:11:04+08:00", "utc": "1977-11-11T23:11:04Z", "ms": 248137863738.95035 }, "end": { "local": "1977-11-12T10:47:57+08:00", "utc": "1977-11-12T02:47:57Z", "ms": 248150876552.6499 } }, "covered_min": 217, "window_min": 217, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 15:09 on Fri 11 Nov to 11:41 on Sat 12 Nov.", "fact": "1977-11-11T07:09:22Z → 1977-11-12T03:40:30Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:10–10:48 on the 11th, 07:11–10:48 on the 12th.", "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 217 minutes on the 11th and 217 of 217 on the 12th.", "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 3154 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Zunyi, 1977: Saturday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-12", "confidence": "determinate" } ], "quote": "In Zunyi, Dyūta Pratipad 1977 falls on Saturday 12 November. Pratipadā runs from 15:09 on Fri 11 Nov to 11:41 on Sat 12 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27361, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-11-14T04:36:39+08:00", "utc": "1977-11-13T20:36:39Z", "ms": 248301399243.22913 }, "end": { "local": "1977-11-15T01:21:57+08:00", "utc": "1977-11-14T17:21:57Z", "ms": 248376117488.23615 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-14T04:36:39+08:00", "utc": "1977-11-13T20:36:39Z", "ms": 248301399243.22913 }, "end": { "local": "1977-11-15T01:21:57+08:00", "utc": "1977-11-14T17:21:57Z", "ms": 248376117488.23615 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-11-14", "window": { "start": { "local": "1977-11-14T12:12:40+08:00", "utc": "1977-11-14T04:12:40Z", "ms": 248328759974.17224 }, "end": { "local": "1977-11-14T13:00:40+08:00", "utc": "1977-11-14T05:00:40Z", "ms": 248331639974.17224 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-11-15", "window": { "start": { "local": "1977-11-15T12:12:50+08:00", "utc": "1977-11-15T04:12:50Z", "ms": 248415169738.50208 }, "end": { "local": "1977-11-15T13:00:50+08:00", "utc": "1977-11-15T05:00:50Z", "ms": 248418049738.50208 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:37 on Mon 14 Nov to 01:22 on Tue 15 Nov.", "fact": "1977-11-13T20:36:39Z → 1977-11-14T17:21:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 14th, 12:13–13:01 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27361 s" }, { "step": "ruling", "text": "Nāga Caturthī, Zunyi, 1977: Monday 14 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-14", "confidence": "determinate" } ], "quote": "In Zunyi, Nāga Caturthī 1977 falls on Monday 14 November. Caturthī runs from 04:37 on Mon 14 Nov to 01:22 on Tue 15 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-11-14", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27361, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-11-14T04:36:39+08:00", "utc": "1977-11-13T20:36:39Z", "ms": 248301399243.22913 }, "end": { "local": "1977-11-15T01:21:57+08:00", "utc": "1977-11-14T17:21:57Z", "ms": 248376117488.23615 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-14T04:36:39+08:00", "utc": "1977-11-13T20:36:39Z", "ms": 248301399243.22913 }, "end": { "local": "1977-11-15T01:21:57+08:00", "utc": "1977-11-14T17:21:57Z", "ms": 248376117488.23615 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-11-14", "window": { "start": { "local": "1977-11-14T12:12:40+08:00", "utc": "1977-11-14T04:12:40Z", "ms": 248328759974.17224 }, "end": { "local": "1977-11-14T13:00:40+08:00", "utc": "1977-11-14T05:00:40Z", "ms": 248331639974.17224 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-11-15", "window": { "start": { "local": "1977-11-15T12:12:50+08:00", "utc": "1977-11-15T04:12:50Z", "ms": 248415169738.50208 }, "end": { "local": "1977-11-15T13:00:50+08:00", "utc": "1977-11-15T05:00:50Z", "ms": 248418049738.50208 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:37 on Mon 14 Nov to 01:22 on Tue 15 Nov.", "fact": "1977-11-13T20:36:39Z → 1977-11-14T17:21:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 14th, 12:13–13:01 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27361 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1977: Monday 14 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": "1977-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-14", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1977 falls on Monday 14 November. Caturthī runs from 04:37 on Mon 14 Nov to 01:22 on Tue 15 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-11-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25829, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1977-11-15T22:31:03+08:00", "utc": "1977-11-15T14:31:03Z", "ms": 248452262995.15732 }, "end": { "local": "1977-11-16T20:11:29+08:00", "utc": "1977-11-16T12:11:29Z", "ms": 248530288854.521 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-15T22:31:03+08:00", "utc": "1977-11-15T14:31:03Z", "ms": 248452262995.15732 }, "end": { "local": "1977-11-16T20:11:29+08:00", "utc": "1977-11-16T12:11:29Z", "ms": 248530288854.521 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-11-15", "window": { "start": { "local": "1977-11-15T12:12:50+08:00", "utc": "1977-11-15T04:12:50Z", "ms": 248415169738.50208 }, "end": { "local": "1977-11-15T13:00:50+08:00", "utc": "1977-11-15T05:00:50Z", "ms": 248418049738.50208 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-11-16", "window": { "start": { "local": "1977-11-16T12:13:00+08:00", "utc": "1977-11-16T04:13:00Z", "ms": 248501580332.32605 }, "end": { "local": "1977-11-16T13:01:00+08:00", "utc": "1977-11-16T05:01:00Z", "ms": 248504460332.32605 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:31 on Tue 15 Nov to 20:11 on Wed 16 Nov.", "fact": "1977-11-15T14:31:03Z → 1977-11-16T12:11:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 15th, 12:13–13:01 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25829 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Zunyi, 1977: Wednesday 16 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-16", "confidence": "determinate" } ], "quote": "In Zunyi, Sūrya Ṣaṣṭhī (Chhath) 1977 falls on Wednesday 16 November. Ṣaṣṭhī runs from 22:31 on Tue 15 Nov to 20:11 on Wed 16 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15889, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1977-11-17T18:28:49+08:00", "utc": "1977-11-17T10:28:49Z", "ms": 248610529446.36835 }, "end": { "local": "1977-11-18T17:26:13+08:00", "utc": "1977-11-18T09:26:13Z", "ms": 248693172997.91306 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-17T18:28:49+08:00", "utc": "1977-11-17T10:28:49Z", "ms": 248610529446.36835 }, "end": { "local": "1977-11-18T17:26:13+08:00", "utc": "1977-11-18T09:26:13Z", "ms": 248693172997.91306 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-11-17", "window": { "start": { "local": "1977-11-17T12:13:12+08:00", "utc": "1977-11-17T04:13:12Z", "ms": 248587991749.6747 }, "end": { "local": "1977-11-17T13:01:12+08:00", "utc": "1977-11-17T05:01:12Z", "ms": 248590871749.6747 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-11-18", "window": { "start": { "local": "1977-11-18T12:13:24+08:00", "utc": "1977-11-18T04:13:24Z", "ms": 248674403984.86383 }, "end": { "local": "1977-11-18T13:01:24+08:00", "utc": "1977-11-18T05:01:24Z", "ms": 248677283984.86383 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 18:29 on Thu 17 Nov to 17:26 on Fri 18 Nov.", "fact": "1977-11-17T10:28:49Z → 1977-11-18T09:26:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 17th, 12:13–13:01 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15889 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Zunyi, 1977: Friday 18 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gopashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Gopastami, Gosthastami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-18", "confidence": "determinate" } ], "quote": "In Zunyi, Gopāṣṭamī 1977 falls on Friday 18 November. Aṣṭamī runs from 18:29 on Thu 17 Nov to 17:26 on Fri 18 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22414, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1977-11-18T17:26:13+08:00", "utc": "1977-11-18T09:26:13Z", "ms": 248693172997.91306 }, "end": { "local": "1977-11-19T17:04:07+08:00", "utc": "1977-11-19T09:04:07Z", "ms": 248778247440.94437 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-18T17:26:13+08:00", "utc": "1977-11-18T09:26:13Z", "ms": 248693172997.91306 }, "end": { "local": "1977-11-19T17:04:07+08:00", "utc": "1977-11-19T09:04:07Z", "ms": 248778247440.94437 } }, "kaala": "purvahna", "days": [ { "local_date": "1977-11-18", "window": { "start": { "local": "1977-11-18T07:15:39+08:00", "utc": "1977-11-17T23:15:39Z", "ms": 248656539229.23685 }, "end": { "local": "1977-11-18T10:50:09+08:00", "utc": "1977-11-18T02:50:09Z", "ms": 248669409066.3215 } }, "covered_min": 0, "window_min": 214, "qualifies": false }, { "local_date": "1977-11-19", "window": { "start": { "local": "1977-11-19T07:16:26+08:00", "utc": "1977-11-18T23:16:26Z", "ms": 248742985676.19904 }, "end": { "local": "1977-11-19T10:50:33+08:00", "utc": "1977-11-19T02:50:33Z", "ms": 248755833246.9279 } }, "covered_min": 214, "window_min": 214, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 17:26 on Fri 18 Nov to 17:04 on Sat 19 Nov.", "fact": "1977-11-18T09:26:13Z → 1977-11-19T09:04:07Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:16–10:50 on the 18th, 07:16–10:51 on the 19th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 0 of 214 minutes on the 18th and 214 of 214 on the 19th.", "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 22414 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Zunyi, 1977: Saturday 19 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-19", "confidence": "determinate" } ], "quote": "In Zunyi, Akṣaya Navamī (Amla Navami) 1977 falls on Saturday 19 November. Navamī runs from 17:26 on Fri 18 Nov to 17:04 on Sat 19 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14550, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1977-11-18T17:26:13+08:00", "utc": "1977-11-18T09:26:13Z", "ms": 248693172997.91306 }, "end": { "local": "1977-11-19T17:04:07+08:00", "utc": "1977-11-19T09:04:07Z", "ms": 248778247440.94437 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-18T17:26:13+08:00", "utc": "1977-11-18T09:26:13Z", "ms": 248693172997.91306 }, "end": { "local": "1977-11-19T17:04:07+08:00", "utc": "1977-11-19T09:04:07Z", "ms": 248778247440.94437 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-11-18", "window": { "start": { "local": "1977-11-18T12:13:24+08:00", "utc": "1977-11-18T04:13:24Z", "ms": 248674403984.86383 }, "end": { "local": "1977-11-18T13:01:24+08:00", "utc": "1977-11-18T05:01:24Z", "ms": 248677283984.86383 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-11-19", "window": { "start": { "local": "1977-11-19T12:13:37+08:00", "utc": "1977-11-19T04:13:37Z", "ms": 248760817032.2923 }, "end": { "local": "1977-11-19T13:01:37+08:00", "utc": "1977-11-19T05:01:37Z", "ms": 248763697032.2923 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 17:26 on Fri 18 Nov to 17:04 on Sat 19 Nov.", "fact": "1977-11-18T09:26:13Z → 1977-11-19T09:04:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 18th, 12:14–13:02 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 14550 s" }, { "step": "ruling", "text": "Durgā Navamī, Zunyi, 1977: Saturday 19 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "durga-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-19", "confidence": "determinate" } ], "quote": "In Zunyi, Durgā Navamī 1977 falls on Saturday 19 November. Navamī runs from 17:26 on Fri 18 Nov to 17:04 on Sat 19 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-11-21", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36196, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-11-20T17:20:28+08:00", "utc": "1977-11-20T09:20:28Z", "ms": 248865627853.73996 }, "end": { "local": "1977-11-21T18:11:08+08:00", "utc": "1977-11-21T10:11:08Z", "ms": 248955068444.5584 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-20T17:20:28+08:00", "utc": "1977-11-20T09:20:28Z", "ms": 248865627853.73996 }, "end": { "local": "1977-11-21T18:11:08+08:00", "utc": "1977-11-21T10:11:08Z", "ms": 248955068444.5584 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-11-20", "window": { "start": { "local": "1977-11-20T07:17:12+08:00", "utc": "1977-11-19T23:17:12Z", "ms": 248829432204.3142 }, "end": { "local": "1977-11-20T07:17:12+08:00", "utc": "1977-11-19T23:17:12Z", "ms": 248829432204.3142 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-11-21", "window": { "start": { "local": "1977-11-21T07:17:59+08:00", "utc": "1977-11-20T23:17:59Z", "ms": 248915878787.00873 }, "end": { "local": "1977-11-21T07:17:59+08:00", "utc": "1977-11-20T23:17:59Z", "ms": 248915878787.00873 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:20 on Sun 20 Nov to 18:11 on Mon 21 Nov.", "fact": "1977-11-20T09:20:28Z → 1977-11-21T10:11:08Z" }, { "step": "kaala", "text": "Sunrise is at 07:17 on the 20th and 07:18 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 20th and is on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36196 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Zunyi, 1977: Monday 21 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": "1977-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-21", "confidence": "determinate" } ], "quote": "In Zunyi, Prabodhinī Ekādaśī 1977 falls on Monday 21 November. Ekādaśī runs from 17:20 on Sun 20 Nov to 18:11 on Mon 21 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-11-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-11-23", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-23", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 836, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-11-22T19:30:53+08:00", "utc": "1977-11-22T11:30:53Z", "ms": 249046252910.57928 }, "end": { "local": "1977-11-23T21:14:09+08:00", "utc": "1977-11-23T13:14:09Z", "ms": 249138848694.66733 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-22T19:30:53+08:00", "utc": "1977-11-22T11:30:53Z", "ms": 249046252910.57928 }, "end": { "local": "1977-11-23T21:14:09+08:00", "utc": "1977-11-23T13:14:09Z", "ms": 249138848694.66733 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-11-22", "window": { "start": { "local": "1977-11-22T17:57:57+08:00", "utc": "1977-11-22T09:57:57Z", "ms": 249040676579.2227 }, "end": { "local": "1977-11-22T19:44:49+08:00", "utc": "1977-11-22T11:44:49Z", "ms": 249047089302.97577 } }, "covered_min": 14, "window_min": 107, "qualifies": true }, { "local_date": "1977-11-23", "window": { "start": { "local": "1977-11-23T17:57:42+08:00", "utc": "1977-11-23T09:57:42Z", "ms": 249127062436.9062 }, "end": { "local": "1977-11-23T19:44:43+08:00", "utc": "1977-11-23T11:44:43Z", "ms": 249133483257.17484 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:31 on Tue 22 Nov to 21:14 on Wed 23 Nov.", "fact": "1977-11-22T11:30:53Z → 1977-11-23T13:14:09Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:58–19:45 on the 22nd, 17:58–19:45 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 14 of 107 minutes on the 22nd and 107 of 107 on the 23rd.", "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 836 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Wednesday 23 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-11-23", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-23", "confidence": "boundary" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Wednesday 23 November. Trayodaśī runs from 19:31 on Tue 22 Nov to 21:14 on Wed 23 Nov and covers all of pradoṣa that evening. It also reaches the previous evening for 14 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/zunyi/festivals/1977/pradosha-vrata?on=1977-11-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36774, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-11-24T23:15:48+08:00", "utc": "1977-11-24T15:15:48Z", "ms": 249232548198.051 }, "end": { "local": "1977-11-26T01:31:25+08:00", "utc": "1977-11-25T17:31:25Z", "ms": 249327084792.13077 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-24T23:15:48+08:00", "utc": "1977-11-24T15:15:48Z", "ms": 249232548198.051 }, "end": { "local": "1977-11-26T01:31:25+08:00", "utc": "1977-11-25T17:31:25Z", "ms": 249327084792.13077 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-11-24", "window": { "start": { "local": "1977-11-24T12:14:54+08:00", "utc": "1977-11-24T04:14:54Z", "ms": 249192894233.7589 }, "end": { "local": "1977-11-24T13:02:54+08:00", "utc": "1977-11-24T05:02:54Z", "ms": 249195774233.7589 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-11-25", "window": { "start": { "local": "1977-11-25T12:15:12+08:00", "utc": "1977-11-25T04:15:12Z", "ms": 249279312013.72653 }, "end": { "local": "1977-11-25T13:03:12+08:00", "utc": "1977-11-25T05:03:12Z", "ms": 249282192013.72653 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:16 on Thu 24 Nov to 01:31 on Sat 26 Nov.", "fact": "1977-11-24T15:15:48Z → 1977-11-25T17:31:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 24th, 12:15–13:03 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36774 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Zunyi, 1977: Friday 25 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": "1977-11-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-25", "confidence": "determinate" } ], "quote": "In Zunyi, Kārtikī Pūrṇimā 1977 falls on Friday 25 November. Pūrṇimā runs from 23:16 on Thu 24 Nov to 01:31 on Sat 26 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1670, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-11-24T23:15:48+08:00", "utc": "1977-11-24T15:15:48Z", "ms": 249232548198.051 }, "end": { "local": "1977-11-26T01:31:25+08:00", "utc": "1977-11-25T17:31:25Z", "ms": 249327084792.13077 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1977-11-24T23:15:48+08:00", "utc": "1977-11-24T15:15:48Z", "ms": 249232548198.051 }, "end": { "local": "1977-11-26T01:31:25+08:00", "utc": "1977-11-25T17:31:25Z", "ms": 249327084792.13077 } }, "kaala": "nishita", "days": [ { "local_date": "1977-11-24", "window": { "start": { "local": "1977-11-25T00:15:17+08:00", "utc": "1977-11-24T16:15:17Z", "ms": 249236117495.57166 }, "end": { "local": "1977-11-25T01:03:17+08:00", "utc": "1977-11-24T17:03:17Z", "ms": 249238997495.57166 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-11-25", "window": { "start": { "local": "1977-11-26T00:15:35+08:00", "utc": "1977-11-25T16:15:35Z", "ms": 249322535231.40082 }, "end": { "local": "1977-11-26T01:03:35+08:00", "utc": "1977-11-25T17:03:35Z", "ms": 249325415231.40082 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:16 on Thu 24 Nov to 01:31 on Sat 26 Nov.", "fact": "1977-11-24T15:15:48Z → 1977-11-25T17:31:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:15–01:03 on the 24th, 00:16–01:04 on the 25th.", "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 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both nights qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 1670 s" }, { "step": "ruling", "text": "Rāsayātrā, Zunyi, 1977: Friday 25 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": "1977-11-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-25", "confidence": "determinate" } ], "quote": "In Zunyi, Rāsayātrā 1977 falls on Friday 25 November. Pūrṇimā runs from 23:16 on Thu 24 Nov to 01:31 on Sat 26 Nov and covers all of niśītha that night. It also reaches the previous night for 48 minutes; by the rule the second night is taken.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-11-29", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-11-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37466, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-11-29T09:01:03+08:00", "utc": "1977-11-29T01:01:03Z", "ms": 249613263149.4947 }, "end": { "local": "1977-11-30T11:28:14+08:00", "utc": "1977-11-30T03:28:14Z", "ms": 249708493561.83878 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-11-29T09:01:03+08:00", "utc": "1977-11-29T01:01:03Z", "ms": 249613263149.4947 }, "end": { "local": "1977-11-30T11:28:14+08:00", "utc": "1977-11-30T03:28:14Z", "ms": 249708493561.83878 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-11-29", "window": { "start": { "local": "1977-11-29T21:01:40+08:00", "utc": "1977-11-29T13:01:40Z", "ms": 249656499703.5687 }, "end": { "local": "1977-11-29T21:01:40+08:00", "utc": "1977-11-29T13:01:40Z", "ms": 249656499703.5687 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1977-11-30", "window": { "start": { "local": "1977-11-30T21:52:39+08:00", "utc": "1977-11-30T13:52:39Z", "ms": 249745959241.51846 }, "end": { "local": "1977-11-30T21:52:39+08:00", "utc": "1977-11-30T13:52:39Z", "ms": 249745959241.51846 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:01 on Tue 29 Nov to 11:28 on Wed 30 Nov.", "fact": "1977-11-29T01:01:03Z → 1977-11-30T03:28:14Z" }, { "step": "kaala", "text": "Moonrise is at 21:02 on the 29th and 21:53 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37466 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Tuesday 29 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": "1977-11-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-11-29", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Tuesday 29 November. Caturthī runs from 09:01 on Tue 29 Nov to 11:28 on Wed 30 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-11-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/ekadashi?on=1977-12-07", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25465, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-12-06T16:21:29+08:00", "utc": "1977-12-06T08:21:29Z", "ms": 250244489198.20502 }, "end": { "local": "1977-12-07T14:34:31+08:00", "utc": "1977-12-07T06:34:31Z", "ms": 250324471282.93723 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-06T16:21:29+08:00", "utc": "1977-12-06T08:21:29Z", "ms": 250244489198.20502 }, "end": { "local": "1977-12-07T14:34:31+08:00", "utc": "1977-12-07T06:34:31Z", "ms": 250324471282.93723 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-12-06", "window": { "start": { "local": "1977-12-06T07:29:24+08:00", "utc": "1977-12-05T23:29:24Z", "ms": 250212563598.4798 }, "end": { "local": "1977-12-06T07:29:24+08:00", "utc": "1977-12-05T23:29:24Z", "ms": 250212563598.4798 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-12-07", "window": { "start": { "local": "1977-12-07T07:30:07+08:00", "utc": "1977-12-06T23:30:07Z", "ms": 250299006752.27872 }, "end": { "local": "1977-12-07T07:30:07+08:00", "utc": "1977-12-06T23:30:07Z", "ms": 250299006752.27872 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:21 on Tue 6 Dec to 14:35 on Wed 7 Dec.", "fact": "1977-12-06T08:21:29Z → 1977-12-07T06:34:31Z" }, { "step": "kaala", "text": "Sunrise is at 07:29 on the 6th and 07:30 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 25465 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Zunyi, 1977: Wednesday 7 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": "1977-12-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-07", "confidence": "determinate" } ], "quote": "In Zunyi, Utpannā Ekādaśī 1977 falls on Wednesday 7 December. Ekādaśī runs from 16:21 on Tue 6 Dec to 14:35 on Wed 7 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-12-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/pradosha-vrata?on=1977-12-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21214, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-12-08T12:03:49+08:00", "utc": "1977-12-08T04:03:49Z", "ms": 250401829309.40787 }, "end": { "local": "1977-12-09T08:56:46+08:00", "utc": "1977-12-09T00:56:46Z", "ms": 250477006361.9149 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-08T12:03:49+08:00", "utc": "1977-12-08T04:03:49Z", "ms": 250401829309.40787 }, "end": { "local": "1977-12-09T08:56:46+08:00", "utc": "1977-12-09T00:56:46Z", "ms": 250477006361.9149 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-12-08", "window": { "start": { "local": "1977-12-08T17:57:24+08:00", "utc": "1977-12-08T09:57:24Z", "ms": 250423043712.96405 }, "end": { "local": "1977-12-08T19:45:57+08:00", "utc": "1977-12-08T11:45:57Z", "ms": 250429556738.70908 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "1977-12-09", "window": { "start": { "local": "1977-12-09T17:57:35+08:00", "utc": "1977-12-09T09:57:35Z", "ms": 250509455329.133 }, "end": { "local": "1977-12-09T19:46:12+08:00", "utc": "1977-12-09T11:46:12Z", "ms": 250515972327.20624 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:04 on Thu 8 Dec to 08:57 on Fri 9 Dec.", "fact": "1977-12-08T04:03:49Z → 1977-12-09T00:56:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:57–19:46 on the 8th, 17:58–19:46 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 109 of 109 minutes on the 8th and 0 of 109 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 21214 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1977: Thursday 8 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": "1977-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-08", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1977 falls on Thursday 8 December. Trayodaśī runs from 12:04 on Thu 8 Dec to 08:57 on Fri 9 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-12-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/shivaratri?on=1977-12-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15235, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1977-12-09T08:56:46+08:00", "utc": "1977-12-09T00:56:46Z", "ms": 250477006361.9149 }, "end": { "local": "1977-12-10T05:22:49+08:00", "utc": "1977-12-09T21:22:49Z", "ms": 250550568719.13452 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-09T08:56:46+08:00", "utc": "1977-12-09T00:56:46Z", "ms": 250477006361.9149 }, "end": { "local": "1977-12-10T05:22:49+08:00", "utc": "1977-12-09T21:22:49Z", "ms": 250550568719.13452 } }, "kaala": "nishita", "days": [ { "local_date": "1977-12-08", "window": { "start": { "local": "1977-12-09T00:20:28+08:00", "utc": "1977-12-08T16:20:28Z", "ms": 250446027559.50793 }, "end": { "local": "1977-12-09T01:08:28+08:00", "utc": "1977-12-08T17:08:28Z", "ms": 250448907559.50793 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-12-09", "window": { "start": { "local": "1977-12-10T00:20:54+08:00", "utc": "1977-12-09T16:20:54Z", "ms": 250532454071.90765 }, "end": { "local": "1977-12-10T01:08:54+08:00", "utc": "1977-12-09T17:08:54Z", "ms": 250535334071.90765 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:57 on Fri 9 Dec to 05:23 on Sat 10 Dec.", "fact": "1977-12-09T00:56:46Z → 1977-12-09T21:22:49Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:20–01:08 on the 8th, 00:21–01:09 on the 9th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15235 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1977: Friday 9 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": "1977-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-09", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1977 falls on Friday 9 December. Caturdaśī runs from 08:57 on Fri 9 Dec to 05:23 on Sat 10 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1977/shivaratri?on=1977-12-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3619, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1977-12-14T11:22:35+08:00", "utc": "1977-12-14T03:22:35Z", "ms": 250917755060.1917 }, "end": { "local": "1977-12-15T09:01:55+08:00", "utc": "1977-12-15T01:01:55Z", "ms": 250995714861.85193 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-14T11:22:35+08:00", "utc": "1977-12-14T03:22:35Z", "ms": 250917755060.1917 }, "end": { "local": "1977-12-15T09:01:55+08:00", "utc": "1977-12-15T01:01:55Z", "ms": 250995714861.85193 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-12-14", "window": { "start": { "local": "1977-12-14T12:22:54+08:00", "utc": "1977-12-14T04:22:54Z", "ms": 250921373672.7525 }, "end": { "local": "1977-12-14T13:10:54+08:00", "utc": "1977-12-14T05:10:54Z", "ms": 250924253672.7525 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-12-15", "window": { "start": { "local": "1977-12-15T12:23:23+08:00", "utc": "1977-12-15T04:23:23Z", "ms": 251007802713.251 }, "end": { "local": "1977-12-15T13:11:23+08:00", "utc": "1977-12-15T05:11:23Z", "ms": 251010682713.251 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 11:23 on Wed 14 Dec to 09:02 on Thu 15 Dec.", "fact": "1977-12-14T03:22:35Z → 1977-12-15T01:01:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 14th, 12:23–13:11 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3619 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Zunyi, 1977: Wednesday 14 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami-margashirsha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (2nd) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-12-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-14", "confidence": "determinate" } ], "quote": "In Zunyi, Nāga Pañcamī (Mārgaśīrṣa) 1977 falls on Wednesday 14 December. Pañcamī runs from 11:23 on Wed 14 Dec to 09:02 on Thu 15 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-12-14", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3619, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-12-13T14:21:53+08:00", "utc": "1977-12-13T06:21:53Z", "ms": 250842113067.17545 }, "end": { "local": "1977-12-14T11:22:35+08:00", "utc": "1977-12-14T03:22:35Z", "ms": 250917755060.1917 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-13T14:21:53+08:00", "utc": "1977-12-13T06:21:53Z", "ms": 250842113067.17545 }, "end": { "local": "1977-12-14T11:22:35+08:00", "utc": "1977-12-14T03:22:35Z", "ms": 250917755060.1917 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-12-13", "window": { "start": { "local": "1977-12-13T12:22:25+08:00", "utc": "1977-12-13T04:22:25Z", "ms": 250834944910.23926 }, "end": { "local": "1977-12-13T13:10:25+08:00", "utc": "1977-12-13T05:10:25Z", "ms": 250837824910.23926 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1977-12-14", "window": { "start": { "local": "1977-12-14T12:22:54+08:00", "utc": "1977-12-14T04:22:54Z", "ms": 250921373672.7525 }, "end": { "local": "1977-12-14T13:10:54+08:00", "utc": "1977-12-14T05:10:54Z", "ms": 250924253672.7525 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:22 on Tue 13 Dec to 11:23 on Wed 14 Dec.", "fact": "1977-12-13T06:21:53Z → 1977-12-14T03:22:35Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 13th, 12:23–13:11 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 0 of 48 on the 14th.", "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 3619 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1977: Wednesday 14 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": "1977-12-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-14", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1977 falls on Wednesday 14 December. Caturthī runs from 14:22 on Tue 13 Dec to 11:23 on Wed 14 Dec, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/zunyi/festivals/1977/vinayaka-chaturthi?on=1977-12-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12088, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1977-12-15T09:01:55+08:00", "utc": "1977-12-15T01:01:55Z", "ms": 250995714861.85193 }, "end": { "local": "1977-12-16T07:26:47+08:00", "utc": "1977-12-15T23:26:47Z", "ms": 251076406739.03397 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-15T09:01:55+08:00", "utc": "1977-12-15T01:01:55Z", "ms": 250995714861.85193 }, "end": { "local": "1977-12-16T07:26:47+08:00", "utc": "1977-12-15T23:26:47Z", "ms": 251076406739.03397 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-12-15", "window": { "start": { "local": "1977-12-15T12:23:23+08:00", "utc": "1977-12-15T04:23:23Z", "ms": 251007802713.251 }, "end": { "local": "1977-12-15T13:11:23+08:00", "utc": "1977-12-15T05:11:23Z", "ms": 251010682713.251 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-12-16", "window": { "start": { "local": "1977-12-16T12:23:52+08:00", "utc": "1977-12-16T04:23:52Z", "ms": 251094231996.78107 }, "end": { "local": "1977-12-16T13:11:52+08:00", "utc": "1977-12-16T05:11:52Z", "ms": 251097111996.78107 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:02 on Thu 15 Dec to 07:27 on Fri 16 Dec.", "fact": "1977-12-15T01:01:55Z → 1977-12-15T23:26:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 15th, 12:24–13:12 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12088 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Zunyi, 1977: Thursday 15 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "champa-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "not_evaluated": "The row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-15", "confidence": "determinate" } ], "quote": "In Zunyi, Campā Ṣaṣṭhī 1977 falls on Thursday 15 December. Ṣaṣṭhī runs from 09:02 on Thu 15 Dec to 07:27 on Fri 16 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12088, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1977-12-15T09:01:55+08:00", "utc": "1977-12-15T01:01:55Z", "ms": 250995714861.85193 }, "end": { "local": "1977-12-16T07:26:47+08:00", "utc": "1977-12-15T23:26:47Z", "ms": 251076406739.03397 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-15T09:01:55+08:00", "utc": "1977-12-15T01:01:55Z", "ms": 250995714861.85193 }, "end": { "local": "1977-12-16T07:26:47+08:00", "utc": "1977-12-15T23:26:47Z", "ms": 251076406739.03397 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-12-15", "window": { "start": { "local": "1977-12-15T12:23:23+08:00", "utc": "1977-12-15T04:23:23Z", "ms": 251007802713.251 }, "end": { "local": "1977-12-15T13:11:23+08:00", "utc": "1977-12-15T05:11:23Z", "ms": 251010682713.251 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-12-16", "window": { "start": { "local": "1977-12-16T12:23:52+08:00", "utc": "1977-12-16T04:23:52Z", "ms": 251094231996.78107 }, "end": { "local": "1977-12-16T13:11:52+08:00", "utc": "1977-12-16T05:11:52Z", "ms": 251097111996.78107 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:02 on Thu 15 Dec to 07:27 on Fri 16 Dec.", "fact": "1977-12-15T01:01:55Z → 1977-12-15T23:26:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 15th, 12:24–13:12 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12088 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Zunyi, 1977: Thursday 15 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-15", "confidence": "determinate" } ], "quote": "In Zunyi, Skanda Ṣaṣṭhī 1977 falls on Thursday 15 December. Ṣaṣṭhī runs from 09:02 on Thu 15 Dec to 07:27 on Fri 16 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17825, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1977-12-16T07:26:47+08:00", "utc": "1977-12-15T23:26:47Z", "ms": 251076406739.03397 }, "end": { "local": "1977-12-17T06:40:58+08:00", "utc": "1977-12-16T22:40:58Z", "ms": 251160058374.96152 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-16T07:26:47+08:00", "utc": "1977-12-15T23:26:47Z", "ms": 251076406739.03397 }, "end": { "local": "1977-12-17T06:40:58+08:00", "utc": "1977-12-16T22:40:58Z", "ms": 251160058374.96152 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-12-16", "window": { "start": { "local": "1977-12-16T12:23:52+08:00", "utc": "1977-12-16T04:23:52Z", "ms": 251094231996.78107 }, "end": { "local": "1977-12-16T13:11:52+08:00", "utc": "1977-12-16T05:11:52Z", "ms": 251097111996.78107 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-12-17", "window": { "start": { "local": "1977-12-17T12:24:21+08:00", "utc": "1977-12-17T04:24:21Z", "ms": 251180661489.30316 }, "end": { "local": "1977-12-17T13:12:21+08:00", "utc": "1977-12-17T05:12:21Z", "ms": 251183541489.30316 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 07:27 on Fri 16 Dec to 06:41 on Sat 17 Dec.", "fact": "1977-12-15T23:26:47Z → 1977-12-16T22:40:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 16th, 12:24–13:12 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17825 s" }, { "step": "ruling", "text": "Mitra Saptamī, Zunyi, 1977: Friday 16 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mitra-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Mitra saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1977-12-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-16", "confidence": "determinate" } ], "quote": "In Zunyi, Mitra Saptamī 1977 falls on Friday 16 December. Saptamī runs from 07:27 on Fri 16 Dec to 06:41 on Sat 17 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/ekadashi?on=1977-12-21", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4994, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1977-12-20T09:01:36+08:00", "utc": "1977-12-20T01:01:36Z", "ms": 251427695988.61578 }, "end": { "local": "1977-12-21T10:58:53+08:00", "utc": "1977-12-21T02:58:53Z", "ms": 251521132877.6653 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-20T09:01:36+08:00", "utc": "1977-12-20T01:01:36Z", "ms": 251427695988.61578 }, "end": { "local": "1977-12-21T10:58:53+08:00", "utc": "1977-12-21T02:58:53Z", "ms": 251521132877.6653 } }, "kaala": "sunrise", "days": [ { "local_date": "1977-12-20", "window": { "start": { "local": "1977-12-20T07:38:22+08:00", "utc": "1977-12-19T23:38:22Z", "ms": 251422702054.22635 }, "end": { "local": "1977-12-20T07:38:22+08:00", "utc": "1977-12-19T23:38:22Z", "ms": 251422702054.22635 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-12-21", "window": { "start": { "local": "1977-12-21T07:38:54+08:00", "utc": "1977-12-20T23:38:54Z", "ms": 251509133555.11432 }, "end": { "local": "1977-12-21T07:38:54+08:00", "utc": "1977-12-20T23:38:54Z", "ms": 251509133555.11432 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:02 on Tue 20 Dec to 10:59 on Wed 21 Dec.", "fact": "1977-12-20T01:01:36Z → 1977-12-21T02:58:53Z" }, { "step": "kaala", "text": "Sunrise is at 07:38 on the 20th and 07:39 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 20th and is on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4994 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Zunyi, 1977: Wednesday 21 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": "1977-12-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-21", "confidence": "determinate" } ], "quote": "In Zunyi, Mokṣadā Ekādaśī 1977 falls on Wednesday 21 December. Ekādaśī runs from 09:02 on Tue 20 Dec to 10:59 on Wed 21 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/ekadashi?on=1977-12-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-22", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 73, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1977-12-21T10:58:53+08:00", "utc": "1977-12-21T02:58:53Z", "ms": 251521132877.6653 }, "end": { "local": "1977-12-22T13:16:04+08:00", "utc": "1977-12-22T05:16:04Z", "ms": 251615763573.11322 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-21T10:58:53+08:00", "utc": "1977-12-21T02:58:53Z", "ms": 251521132877.6653 }, "end": { "local": "1977-12-22T13:16:04+08:00", "utc": "1977-12-22T05:16:04Z", "ms": 251615763573.11322 } }, "kaala": "madhyahna", "days": [ { "local_date": "1977-12-21", "window": { "start": { "local": "1977-12-21T12:26:21+08:00", "utc": "1977-12-21T04:26:21Z", "ms": 251526380890.37933 }, "end": { "local": "1977-12-21T13:14:21+08:00", "utc": "1977-12-21T05:14:21Z", "ms": 251529260890.37933 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1977-12-22", "window": { "start": { "local": "1977-12-22T12:26:51+08:00", "utc": "1977-12-22T04:26:51Z", "ms": 251612810937.06107 }, "end": { "local": "1977-12-22T13:14:51+08:00", "utc": "1977-12-22T05:14:51Z", "ms": 251615690937.06107 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 10:59 on Wed 21 Dec to 13:16 on Thu 22 Dec.", "fact": "1977-12-21T02:58:53Z → 1977-12-22T05:16:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 21st, 12:27–13:15 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "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 73 s < 300 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Zunyi, 1977: Thursday 22 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": "1977-12-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-22", "confidence": "determinate" } ], "quote": "In Zunyi, Akhaṇḍa Dvādaśī 1977 falls on Thursday 22 December. Dvādaśī runs from 10:59 on Wed 21 Dec to 13:16 on Thu 22 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 13 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1977/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": "/zunyi/festivals/1977/pradosha-vrata?on=1977-12-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8301, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1977-12-22T13:16:04+08:00", "utc": "1977-12-22T05:16:04Z", "ms": 251615763573.11322 }, "end": { "local": "1977-12-23T15:44:28+08:00", "utc": "1977-12-23T07:44:28Z", "ms": 251711068037.87128 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-22T13:16:04+08:00", "utc": "1977-12-22T05:16:04Z", "ms": 251615763573.11322 }, "end": { "local": "1977-12-23T15:44:28+08:00", "utc": "1977-12-23T07:44:28Z", "ms": 251711068037.87128 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-12-22", "window": { "start": { "local": "1977-12-22T18:02:18+08:00", "utc": "1977-12-22T10:02:18Z", "ms": 251632937952.37476 }, "end": { "local": "1977-12-22T19:51:19+08:00", "utc": "1977-12-22T11:51:19Z", "ms": 251639478641.639 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "1977-12-23", "window": { "start": { "local": "1977-12-23T18:02:49+08:00", "utc": "1977-12-23T10:02:49Z", "ms": 251719368875.5215 }, "end": { "local": "1977-12-23T19:51:49+08:00", "utc": "1977-12-23T11:51:49Z", "ms": 251725909175.37756 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:16 on Thu 22 Dec to 15:44 on Fri 23 Dec.", "fact": "1977-12-22T05:16:04Z → 1977-12-23T07:44:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:02–19:51 on the 22nd, 18:03–19:52 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 109 of 109 minutes on the 22nd and 0 of 109 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 8301 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1977: Thursday 22 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": "1977-12-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-22", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1977 falls on Thursday 22 December. Trayodaśī runs from 13:16 on Thu 22 Dec to 15:44 on Fri 23 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1977/pradosha-vrata?on=1977-12-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1977/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-25", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 829, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1977-12-24T18:17:10+08:00", "utc": "1977-12-24T10:17:10Z", "ms": 251806630013.28488 }, "end": { "local": "1977-12-25T20:49:02+08:00", "utc": "1977-12-25T12:49:02Z", "ms": 251902142021.98648 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-24T18:17:10+08:00", "utc": "1977-12-24T10:17:10Z", "ms": 251806630013.28488 }, "end": { "local": "1977-12-25T20:49:02+08:00", "utc": "1977-12-25T12:49:02Z", "ms": 251902142021.98648 } }, "kaala": "pradosha", "days": [ { "local_date": "1977-12-24", "window": { "start": { "local": "1977-12-24T18:03:21+08:00", "utc": "1977-12-24T10:03:21Z", "ms": 251805800963.22946 }, "end": { "local": "1977-12-24T19:52:21+08:00", "utc": "1977-12-24T11:52:21Z", "ms": 251812340554.76685 } }, "covered_min": 95, "window_min": 109, "qualifies": true }, { "local_date": "1977-12-25", "window": { "start": { "local": "1977-12-25T18:03:54+08:00", "utc": "1977-12-25T10:03:54Z", "ms": 251892234182.82867 }, "end": { "local": "1977-12-25T19:52:53+08:00", "utc": "1977-12-25T11:52:53Z", "ms": 251898772747.6945 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:17 on Sat 24 Dec to 20:49 on Sun 25 Dec.", "fact": "1977-12-24T10:17:10Z → 1977-12-25T12:49:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:03–19:52 on the 24th, 18:04–19:53 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 95 of 109 minutes on the 24th and 109 of 109 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "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 829 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Zunyi, 1977: Sunday 25 December.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1977-12-25", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-25", "confidence": "boundary" } ], "quote": "In Zunyi, Dattātreyotpatti (Datta Jayanti) 1977 falls on Sunday 25 December. Pūrṇimā runs from 18:17 on Sat 24 Dec to 20:49 on Sun 25 Dec and covers all of pradoṣa that evening. It also reaches the previous evening for 95 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/zunyi/festivals/1977/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": "/zunyi/festivals/1977/sankashta-chaturthi?on=1977-12-29", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1977, "local_date": "1977-12-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25331, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1977-12-29T03:42:17+08:00", "utc": "1977-12-28T19:42:17Z", "ms": 252186137427.88785 }, "end": { "local": "1977-12-30T05:32:10+08:00", "utc": "1977-12-29T21:32:10Z", "ms": 252279129736.96802 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1977-12-29T03:42:17+08:00", "utc": "1977-12-28T19:42:17Z", "ms": 252186137427.88785 }, "end": { "local": "1977-12-30T05:32:10+08:00", "utc": "1977-12-29T21:32:10Z", "ms": 252279129736.96802 } }, "kaala": "moonrise", "days": [ { "local_date": "1977-12-28", "window": { "start": { "local": "1977-12-28T20:40:06+08:00", "utc": "1977-12-28T12:40:06Z", "ms": 252160806473.5501 }, "end": { "local": "1977-12-28T20:40:06+08:00", "utc": "1977-12-28T12:40:06Z", "ms": 252160806473.5501 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1977-12-29", "window": { "start": { "local": "1977-12-29T21:32:36+08:00", "utc": "1977-12-29T13:32:36Z", "ms": 252250355784.1291 }, "end": { "local": "1977-12-29T21:32:36+08:00", "utc": "1977-12-29T13:32:36Z", "ms": 252250355784.1291 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:42 on Thu 29 Dec to 05:32 on Fri 30 Dec.", "fact": "1977-12-28T19:42:17Z → 1977-12-29T21:32:10Z" }, { "step": "kaala", "text": "Moonrise is at 20:40 on the 28th and 21:33 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25331 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1977: Thursday 29 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": "1977-12-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1977-12-29", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1977 falls on Thursday 29 December. Caturthī runs from 03:42 on Thu 29 Dec to 05:32 on Fri 30 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1977/sankashta-chaturthi?on=1977-12-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }