{ "id": "/zunyi/festivals/1991", "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": 1991, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/zunyi/festivals/1991/sankashta-chaturthi?on=1991-01-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13421, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-01-03T17:22:56+08:00", "utc": "1991-01-03T09:22:56Z", "ms": 662894575605.4071 }, "end": { "local": "1991-01-04T15:24:17+08:00", "utc": "1991-01-04T07:24:17Z", "ms": 662973856646.8103 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-03T17:22:56+08:00", "utc": "1991-01-03T09:22:56Z", "ms": 662894575605.4071 }, "end": { "local": "1991-01-04T15:24:17+08:00", "utc": "1991-01-04T07:24:17Z", "ms": 662973856646.8103 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-01-03", "window": { "start": { "local": "1991-01-03T21:06:37+08:00", "utc": "1991-01-03T13:06:37Z", "ms": 662907996848.5784 }, "end": { "local": "1991-01-03T21:06:37+08:00", "utc": "1991-01-03T13:06:37Z", "ms": 662907996848.5784 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-01-04", "window": { "start": { "local": "1991-01-04T22:09:38+08:00", "utc": "1991-01-04T14:09:38Z", "ms": 662998177996.1808 }, "end": { "local": "1991-01-04T22:09:38+08:00", "utc": "1991-01-04T14:09:38Z", "ms": 662998177996.1808 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:23 on Thu 3 Jan to 15:24 on Fri 4 Jan.", "fact": "1991-01-03T09:22:56Z → 1991-01-04T07:24:17Z" }, { "step": "kaala", "text": "Moonrise is at 21:07 on the 3rd and 22:10 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13421 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Thursday 3 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-01-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-03", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Thursday 3 January. Caturthī runs from 17:23 on Thu 3 Jan to 15:24 on Fri 4 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-01-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/ekadashi?on=1991-01-11", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35622, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-01-10T19:17:10+08:00", "utc": "1991-01-10T11:17:10Z", "ms": 663506230159.5217 }, "end": { "local": "1991-01-11T21:51:08+08:00", "utc": "1991-01-11T13:51:08Z", "ms": 663601867672.9789 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-10T19:17:10+08:00", "utc": "1991-01-10T11:17:10Z", "ms": 663506230159.5217 }, "end": { "local": "1991-01-11T21:51:08+08:00", "utc": "1991-01-11T13:51:08Z", "ms": 663601867672.9789 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-01-11", "window": { "start": { "local": "1991-01-11T07:44:48+08:00", "utc": "1991-01-10T23:44:48Z", "ms": 663551088436.615 }, "end": { "local": "1991-01-11T07:44:48+08:00", "utc": "1991-01-10T23:44:48Z", "ms": 663551088436.615 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-01-12", "window": { "start": { "local": "1991-01-12T07:44:50+08:00", "utc": "1991-01-11T23:44:50Z", "ms": 663637489543.9884 }, "end": { "local": "1991-01-12T07:44:50+08:00", "utc": "1991-01-11T23:44:50Z", "ms": 663637489543.9884 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:17 on Thu 10 Jan to 21:51 on Fri 11 Jan.", "fact": "1991-01-10T11:17:10Z → 1991-01-11T13:51:08Z" }, { "step": "kaala", "text": "Sunrise is at 07:45 on the 11th and 07:45 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 not 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 35622 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Zunyi, 1991: Friday 11 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": "1991-01-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-11", "confidence": "determinate" } ], "quote": "In Zunyi, Ṣaṭtilā Ekādaśī 1991 falls on Friday 11 January. Ekādaśī runs from 19:17 on Thu 10 Jan to 21:51 on Fri 11 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-01-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 347, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 }, "end": { "local": "1991-02-13T07:11:30+08:00", "utc": "1991-02-12T23:11:30Z", "ms": 666400289966.9186 } }, "span": { "of": "transit", "start": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 }, "end": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 } }, "kaala": "sunset-day", "days": [ { "local_date": "1991-01-14", "window": { "start": { "local": "1991-01-13T18:16:59+08:00", "utc": "1991-01-13T10:16:59Z", "ms": 663761818854.0039 }, "end": { "local": "1991-01-14T18:17:46+08:00", "utc": "1991-01-14T10:17:46Z", "ms": 663848266488.3354 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1991-01-15", "window": { "start": { "local": "1991-01-14T18:17:46+08:00", "utc": "1991-01-14T10:17:46Z", "ms": 663848266488.3354 }, "end": { "local": "1991-01-15T18:18:34+08:00", "utc": "1991-01-15T10:18:34Z", "ms": 663934714416.4703 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1991-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 18:12 on Mon 14 Jan.", "fact": "1991-01-14T10:12:00Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 18:18, and the day of the 15th ends at 18:19.", "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 347 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Monday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Zunyi, 1991: Sunday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "bhogi", "follows": { "festival": "pongal", "days": -1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-01-13", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1991-01-13", "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": "1991-01-13", "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, Bhogi 1991 falls on Sunday 13 January. It is kept the day before Pongal, which falls on Monday 14 January. The Sun enters Makara at 18:12 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/pradosha-vrata?on=1991-01-13", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16095, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-01-13T00:32:16+08:00", "utc": "1991-01-12T16:32:16Z", "ms": 663697935979.4485 }, "end": { "local": "1991-01-14T03:10:44+08:00", "utc": "1991-01-13T19:10:44Z", "ms": 663793844077.4535 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-13T00:32:16+08:00", "utc": "1991-01-12T16:32:16Z", "ms": 663697935979.4485 }, "end": { "local": "1991-01-14T03:10:44+08:00", "utc": "1991-01-13T19:10:44Z", "ms": 663793844077.4535 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-01-12", "window": { "start": { "local": "1991-01-12T18:16:12+08:00", "utc": "1991-01-12T10:16:12Z", "ms": 663675371556.6272 }, "end": { "local": "1991-01-12T20:04:01+08:00", "utc": "1991-01-12T12:04:01Z", "ms": 663681840560.6433 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "1991-01-13", "window": { "start": { "local": "1991-01-13T18:16:59+08:00", "utc": "1991-01-13T10:16:59Z", "ms": 663761818854.0039 }, "end": { "local": "1991-01-13T20:04:41+08:00", "utc": "1991-01-13T12:04:41Z", "ms": 663768281281.3646 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:32 on Sun 13 Jan to 03:11 on Mon 14 Jan.", "fact": "1991-01-12T16:32:16Z → 1991-01-13T19:10:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:16–20:04 on the 12th, 18:17–20:05 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 108 minutes on the 12th and 108 of 108 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16095 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Sunday 13 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": "1991-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-13", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Sunday 13 January. Trayodaśī runs from 00:32 on Sun 13 Jan to 03:11 on Mon 14 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-01-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 347, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 }, "end": { "local": "1991-02-13T07:11:30+08:00", "utc": "1991-02-12T23:11:30Z", "ms": 666400289966.9186 } }, "span": { "of": "transit", "start": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 }, "end": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 } }, "kaala": "sunset-day", "days": [ { "local_date": "1991-01-14", "window": { "start": { "local": "1991-01-13T18:16:59+08:00", "utc": "1991-01-13T10:16:59Z", "ms": 663761818854.0039 }, "end": { "local": "1991-01-14T18:17:46+08:00", "utc": "1991-01-14T10:17:46Z", "ms": 663848266488.3354 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1991-01-15", "window": { "start": { "local": "1991-01-14T18:17:46+08:00", "utc": "1991-01-14T10:17:46Z", "ms": 663848266488.3354 }, "end": { "local": "1991-01-15T18:18:34+08:00", "utc": "1991-01-15T10:18:34Z", "ms": 663934714416.4703 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 18:12 on Mon 14 Jan.", "fact": "1991-01-14T10:12:00Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 18:18, and the day of the 15th ends at 18:19.", "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 347 s" }, { "step": "ruling", "text": "Pongal, Zunyi, 1991: Monday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "pongal", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.", "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-01-14", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1991-01-14", "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": "1991-01-14", "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, Pongal 1991 falls on Monday 14 January. The Sun enters Makara at 18:12 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20880, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 }, "end": { "local": "1991-02-13T07:11:30+08:00", "utc": "1991-02-12T23:11:30Z", "ms": 666400289966.9186 } }, "span": { "of": "transit", "start": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 }, "end": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 } }, "kaala": "civil-day", "days": [ { "local_date": "1991-01-14", "window": { "start": { "local": "1991-01-14T00:00:00+08:00", "utc": "1991-01-13T16:00:00Z", "ms": 663782400000 }, "end": { "local": "1991-01-15T00:00:00+08:00", "utc": "1991-01-14T16:00:00Z", "ms": 663868800000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "1991-01-15", "window": { "start": { "local": "1991-01-15T00:00:00+08:00", "utc": "1991-01-14T16:00:00Z", "ms": 663868800000 }, "end": { "local": "1991-01-16T00:00:00+08:00", "utc": "1991-01-15T16:00:00Z", "ms": 663955200000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 18:12 on Mon 14 Jan.", "fact": "1991-01-14T10:12:00Z · 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 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 20880 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Zunyi, 1991: Monday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "makara-sankranti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "rashi": "Makara", "day_from": "midnight" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1991-01-14", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1991-01-14", "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 1991 falls on Monday 14 January. The Sun enters Makara at 18:12 on Mon 14 Jan, and the rule counts the day from midnight.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1116, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-01-14T03:10:44+08:00", "utc": "1991-01-13T19:10:44Z", "ms": 663793844077.4535 }, "end": { "local": "1991-01-15T05:38:32+08:00", "utc": "1991-01-14T21:38:32Z", "ms": 663889112060.5524 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-14T03:10:44+08:00", "utc": "1991-01-13T19:10:44Z", "ms": 663793844077.4535 }, "end": { "local": "1991-01-15T05:38:32+08:00", "utc": "1991-01-14T21:38:32Z", "ms": 663889112060.5524 } }, "kaala": "arunodaya", "days": [ { "local_date": "1991-01-14", "window": { "start": { "local": "1991-01-14T05:57:05+08:00", "utc": "1991-01-13T21:57:05Z", "ms": 663803824631.8489 }, "end": { "local": "1991-01-14T07:44:47+08:00", "utc": "1991-01-13T23:44:47Z", "ms": 663810287059.2096 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1991-01-15", "window": { "start": { "local": "1991-01-15T05:57:08+08:00", "utc": "1991-01-14T21:57:08Z", "ms": 663890227861.1042 }, "end": { "local": "1991-01-15T07:44:43+08:00", "utc": "1991-01-14T23:44:43Z", "ms": 663896683456.9148 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:11 on Mon 14 Jan to 05:39 on Tue 15 Jan.", "fact": "1991-01-13T19:10:44Z → 1991-01-14T21:38:32Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:57–07:45 on the 14th, 05:57–07:45 on the 15th.", "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 108 of 108 minutes on the 14th and 0 of 108 on the 15th.", "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 1116 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Zunyi, 1991: Monday 14 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": "1991-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-14", "confidence": "determinate" } ], "quote": "In Zunyi, Yama Tarpaṇa 1991 falls on Monday 14 January. Caturdaśī runs from 03:11 on Mon 14 Jan to 05:39 on Tue 15 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/shivaratri?on=1991-01-14", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6351, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-01-14T03:10:44+08:00", "utc": "1991-01-13T19:10:44Z", "ms": 663793844077.4535 }, "end": { "local": "1991-01-15T05:38:32+08:00", "utc": "1991-01-14T21:38:32Z", "ms": 663889112060.5524 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-14T03:10:44+08:00", "utc": "1991-01-13T19:10:44Z", "ms": 663793844077.4535 }, "end": { "local": "1991-01-15T05:38:32+08:00", "utc": "1991-01-14T21:38:32Z", "ms": 663889112060.5524 } }, "kaala": "nishita", "days": [ { "local_date": "1991-01-13", "window": { "start": { "local": "1991-01-14T00:36:53+08:00", "utc": "1991-01-13T16:36:53Z", "ms": 663784612956.6067 }, "end": { "local": "1991-01-14T01:24:53+08:00", "utc": "1991-01-13T17:24:53Z", "ms": 663787492956.6067 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-01-14", "window": { "start": { "local": "1991-01-15T00:37:15+08:00", "utc": "1991-01-14T16:37:15Z", "ms": 663871034972.6251 }, "end": { "local": "1991-01-15T01:25:15+08:00", "utc": "1991-01-14T17:25:15Z", "ms": 663873914972.6251 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:11 on Mon 14 Jan to 05:39 on Tue 15 Jan.", "fact": "1991-01-13T19:10:44Z → 1991-01-14T21:38:32Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:37–01:25 on the 13th, 00:37–01:25 on the 14th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6351 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Monday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-14", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Monday 14 January. Caturdaśī runs from 03:11 on Mon 14 Jan to 05:39 on Tue 15 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-01-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 347, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 }, "end": { "local": "1991-02-13T07:11:30+08:00", "utc": "1991-02-12T23:11:30Z", "ms": 666400289966.9186 } }, "span": { "of": "transit", "start": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 }, "end": { "local": "1991-01-14T18:12:00+08:00", "utc": "1991-01-14T10:12:00Z", "ms": 663847919636.7416 } }, "kaala": "sunset-day", "days": [ { "local_date": "1991-01-14", "window": { "start": { "local": "1991-01-13T18:16:59+08:00", "utc": "1991-01-13T10:16:59Z", "ms": 663761818854.0039 }, "end": { "local": "1991-01-14T18:17:46+08:00", "utc": "1991-01-14T10:17:46Z", "ms": 663848266488.3354 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1991-01-15", "window": { "start": { "local": "1991-01-14T18:17:46+08:00", "utc": "1991-01-14T10:17:46Z", "ms": 663848266488.3354 }, "end": { "local": "1991-01-15T18:18:34+08:00", "utc": "1991-01-15T10:18:34Z", "ms": 663934714416.4703 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1991-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 18:12 on Mon 14 Jan.", "fact": "1991-01-14T10:12:00Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 18:18, and the day of the 15th ends at 18:19.", "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 347 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Monday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Zunyi, 1991: Tuesday 15 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "mattu-pongal", "follows": { "festival": "pongal", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-01-15", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1991-01-15", "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": "1991-01-15", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Zunyi, Mattu Pongal 1991 falls on Tuesday 15 January. It is kept the day after Pongal, which falls on Monday 14 January. The Sun enters Makara at 18:12 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-19", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 215, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-01-19T12:04:57+08:00", "utc": "1991-01-19T04:04:57Z", "ms": 664257896539.0417 }, "end": { "local": "1991-01-20T12:35:44+08:00", "utc": "1991-01-20T04:35:44Z", "ms": 664346144118.7214 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-19T12:04:57+08:00", "utc": "1991-01-19T04:04:57Z", "ms": 664257896539.0417 }, "end": { "local": "1991-01-20T12:35:44+08:00", "utc": "1991-01-20T04:35:44Z", "ms": 664346144118.7214 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-01-19", "window": { "start": { "local": "1991-01-19T12:39:01+08:00", "utc": "1991-01-19T04:39:01Z", "ms": 664259940740.0032 }, "end": { "local": "1991-01-19T13:27:01+08:00", "utc": "1991-01-19T05:27:01Z", "ms": 664262820740.0032 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-01-20", "window": { "start": { "local": "1991-01-20T12:39:19+08:00", "utc": "1991-01-20T04:39:19Z", "ms": 664346359377.6614 }, "end": { "local": "1991-01-20T13:27:19+08:00", "utc": "1991-01-20T05:27:19Z", "ms": 664349239377.6614 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:05 on Sat 19 Jan to 12:36 on Sun 20 Jan.", "fact": "1991-01-19T04:04:57Z → 1991-01-20T04:35:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 19th, 12:39–13:27 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 215 s < 300 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Zunyi, 1991: Saturday 19 January.", "fact": "confidence: boundary (margin)" } ], "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": "1991-01-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-19", "confidence": "determinate" } ], "quote": "In Zunyi, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1991 falls on Saturday 19 January. Caturthī runs from 12:05 on Sat 19 Jan to 12:36 on Sun 20 Jan and covers all of madhyāhna that midday. It is 3 min 35 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20813, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-01-19T12:04:57+08:00", "utc": "1991-01-19T04:04:57Z", "ms": 664257896539.0417 }, "end": { "local": "1991-01-20T12:35:44+08:00", "utc": "1991-01-20T04:35:44Z", "ms": 664346144118.7214 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-19T12:04:57+08:00", "utc": "1991-01-19T04:04:57Z", "ms": 664257896539.0417 }, "end": { "local": "1991-01-20T12:35:44+08:00", "utc": "1991-01-20T04:35:44Z", "ms": 664346144118.7214 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-01-19", "window": { "start": { "local": "1991-01-19T18:21:48+08:00", "utc": "1991-01-19T10:21:48Z", "ms": 664280508224.3308 }, "end": { "local": "1991-01-19T20:08:46+08:00", "utc": "1991-01-19T12:08:46Z", "ms": 664286926028.8335 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1991-01-20", "window": { "start": { "local": "1991-01-20T18:22:37+08:00", "utc": "1991-01-20T10:22:37Z", "ms": 664366956997.2222 }, "end": { "local": "1991-01-20T20:09:27+08:00", "utc": "1991-01-20T12:09:27Z", "ms": 664373366555.9027 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:05 on Sat 19 Jan to 12:36 on Sun 20 Jan.", "fact": "1991-01-19T04:04:57Z → 1991-01-20T04:35:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:22–20:09 on the 19th, 18:23–20:09 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 107 of 107 minutes on the 19th and 0 of 107 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20813 s" }, { "step": "ruling", "text": "Tila Caturthī, Zunyi, 1991: Saturday 19 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-01-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-19", "confidence": "determinate" } ], "quote": "In Zunyi, Tila Caturthī 1991 falls on Saturday 19 January. Caturthī runs from 12:05 on Sat 19 Jan to 12:36 on Sun 20 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-20", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 192, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1991-01-20T12:35:44+08:00", "utc": "1991-01-20T04:35:44Z", "ms": 664346144118.7214 }, "end": { "local": "1991-01-21T12:36:25+08:00", "utc": "1991-01-21T04:36:25Z", "ms": 664432585481.7781 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-20T12:35:44+08:00", "utc": "1991-01-20T04:35:44Z", "ms": 664346144118.7214 }, "end": { "local": "1991-01-21T12:36:25+08:00", "utc": "1991-01-21T04:36:25Z", "ms": 664432585481.7781 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-01-20", "window": { "start": { "local": "1991-01-20T12:39:19+08:00", "utc": "1991-01-20T04:39:19Z", "ms": 664346359377.6614 }, "end": { "local": "1991-01-20T13:27:19+08:00", "utc": "1991-01-20T05:27:19Z", "ms": 664349239377.6614 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-01-21", "window": { "start": { "local": "1991-01-21T12:39:37+08:00", "utc": "1991-01-21T04:39:37Z", "ms": 664432777254.4258 }, "end": { "local": "1991-01-21T13:27:37+08:00", "utc": "1991-01-21T05:27:37Z", "ms": 664435657254.4258 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:36 on Sun 20 Jan to 12:36 on Mon 21 Jan.", "fact": "1991-01-20T04:35:44Z → 1991-01-21T04:36:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 20th, 12:40–13:28 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 192 s < 300 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Zunyi, 1991: Sunday 20 January.", "fact": "confidence: boundary (margin)" } ], "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": "1991-01-20", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-20", "confidence": "determinate" } ], "quote": "In Zunyi, Śrī Pañcamī 1991 falls on Sunday 20 January. Pañcamī runs from 12:36 on Sun 20 Jan to 12:36 on Mon 21 Jan and covers all of madhyāhna that midday. It is 3 min 12 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-20", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 192, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1991-01-20T12:35:44+08:00", "utc": "1991-01-20T04:35:44Z", "ms": 664346144118.7214 }, "end": { "local": "1991-01-21T12:36:25+08:00", "utc": "1991-01-21T04:36:25Z", "ms": 664432585481.7781 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-20T12:35:44+08:00", "utc": "1991-01-20T04:35:44Z", "ms": 664346144118.7214 }, "end": { "local": "1991-01-21T12:36:25+08:00", "utc": "1991-01-21T04:36:25Z", "ms": 664432585481.7781 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-01-20", "window": { "start": { "local": "1991-01-20T12:39:19+08:00", "utc": "1991-01-20T04:39:19Z", "ms": 664346359377.6614 }, "end": { "local": "1991-01-20T13:27:19+08:00", "utc": "1991-01-20T05:27:19Z", "ms": 664349239377.6614 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-01-21", "window": { "start": { "local": "1991-01-21T12:39:37+08:00", "utc": "1991-01-21T04:39:37Z", "ms": 664432777254.4258 }, "end": { "local": "1991-01-21T13:27:37+08:00", "utc": "1991-01-21T05:27:37Z", "ms": 664435657254.4258 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:36 on Sun 20 Jan to 12:36 on Mon 21 Jan.", "fact": "1991-01-20T04:35:44Z → 1991-01-21T04:36:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 20th, 12:40–13:28 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 192 s < 300 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Zunyi, 1991: Sunday 20 January.", "fact": "confidence: boundary (margin)" } ], "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": "1991-01-20", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-20", "confidence": "boundary" } ], "quote": "In Zunyi, Vasanta Pañcamī 1991 falls on Sunday 20 January. Pañcamī runs from 12:36 on Sun 20 Jan to 12:36 on Mon 21 Jan and covers all of madhyāhna that midday. It is 3 min 12 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12046, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1991-01-22T12:05:57+08:00", "utc": "1991-01-22T04:05:57Z", "ms": 664517157358.8906 }, "end": { "local": "1991-01-23T11:04:04+08:00", "utc": "1991-01-23T03:04:04Z", "ms": 664599843605.5228 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-22T12:05:57+08:00", "utc": "1991-01-22T04:05:57Z", "ms": 664517157358.8906 }, "end": { "local": "1991-01-23T11:04:04+08:00", "utc": "1991-01-23T03:04:04Z", "ms": 664599843605.5228 } }, "kaala": "arunodaya", "days": [ { "local_date": "1991-01-22", "window": { "start": { "local": "1991-01-22T05:56:53+08:00", "utc": "1991-01-21T21:56:53Z", "ms": 664495012952.1898 }, "end": { "local": "1991-01-22T07:43:34+08:00", "utc": "1991-01-21T23:43:34Z", "ms": 664501414049.2152 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1991-01-23", "window": { "start": { "local": "1991-01-23T05:56:45+08:00", "utc": "1991-01-22T21:56:45Z", "ms": 664581405426.1802 }, "end": { "local": "1991-01-23T07:43:18+08:00", "utc": "1991-01-22T23:43:18Z", "ms": 664587797851.5345 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:06 on Tue 22 Jan to 11:04 on Wed 23 Jan.", "fact": "1991-01-22T04:05:57Z → 1991-01-23T03:04:04Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:57–07:44 on the 22nd, 05:57–07:43 on the 23rd.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during aruṇodaya. It covers 0 of 107 minutes on the 22nd and 107 of 107 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12046 s" }, { "step": "ruling", "text": "Ratha Saptamī, Zunyi, 1991: Wednesday 23 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": "1991-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-23", "confidence": "determinate" } ], "quote": "In Zunyi, Ratha Saptamī 1991 falls on Wednesday 23 January. Saptamī runs from 12:06 on Tue 22 Jan to 11:04 on Wed 23 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-01-26", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9470, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-01-26T05:04:30+08:00", "utc": "1991-01-25T21:04:30Z", "ms": 664837470092.4858 }, "end": { "local": "1991-01-27T02:18:22+08:00", "utc": "1991-01-26T18:18:22Z", "ms": 664913902270.6904 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-26T05:04:30+08:00", "utc": "1991-01-25T21:04:30Z", "ms": 664837470092.4858 }, "end": { "local": "1991-01-27T02:18:22+08:00", "utc": "1991-01-26T18:18:22Z", "ms": 664913902270.6904 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-01-26", "window": { "start": { "local": "1991-01-26T07:42:20+08:00", "utc": "1991-01-25T23:42:20Z", "ms": 664846940009.2168 }, "end": { "local": "1991-01-26T07:42:20+08:00", "utc": "1991-01-25T23:42:20Z", "ms": 664846940009.2168 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-01-27", "window": { "start": { "local": "1991-01-27T07:41:58+08:00", "utc": "1991-01-26T23:41:58Z", "ms": 664933317691.7234 }, "end": { "local": "1991-01-27T07:41:58+08:00", "utc": "1991-01-26T23:41:58Z", "ms": 664933317691.7234 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:05 on Sat 26 Jan to 02:18 on Sun 27 Jan.", "fact": "1991-01-25T21:04:30Z → 1991-01-26T18:18:22Z" }, { "step": "kaala", "text": "Sunrise is at 07:42 on the 26th and 07:42 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9470 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Zunyi, 1991: Saturday 26 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-26", "confidence": "determinate" } ], "quote": "In Zunyi, Jayā Ekādaśī 1991 falls on Saturday 26 January. Ekādaśī runs from 05:05 on Sat 26 Jan to 02:18 on Sun 27 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-01-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35348, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1991-01-27T02:18:22+08:00", "utc": "1991-01-26T18:18:22Z", "ms": 664913902270.6904 }, "end": { "local": "1991-01-27T23:18:16+08:00", "utc": "1991-01-27T15:18:16Z", "ms": 664989495641.1078 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-27T02:18:22+08:00", "utc": "1991-01-26T18:18:22Z", "ms": 664913902270.6904 }, "end": { "local": "1991-01-27T23:18:16+08:00", "utc": "1991-01-27T15:18:16Z", "ms": 664989495641.1078 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-01-26", "window": { "start": { "local": "1991-01-26T12:40:55+08:00", "utc": "1991-01-26T04:40:55Z", "ms": 664864854767.2852 }, "end": { "local": "1991-01-26T13:28:55+08:00", "utc": "1991-01-26T05:28:55Z", "ms": 664867734767.2852 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-01-27", "window": { "start": { "local": "1991-01-27T12:41:08+08:00", "utc": "1991-01-27T04:41:08Z", "ms": 664951267832.8042 }, "end": { "local": "1991-01-27T13:29:08+08:00", "utc": "1991-01-27T05:29:08Z", "ms": 664954147832.8042 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 02:18 on Sun 27 Jan to 23:18 on Sun 27 Jan.", "fact": "1991-01-26T18:18:22Z → 1991-01-27T15:18:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:41–13:29 on the 26th, 12:41–13:29 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 35348 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Zunyi, 1991: Sunday 27 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhishma-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-01-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-27", "confidence": "determinate" } ], "quote": "In Zunyi, Bhīṣma Dvādaśī 1991 falls on Sunday 27 January. Dvādaśī runs from 02:18 on Sun 27 Jan to 23:18 on Sun 27 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/pradosha-vrata?on=1991-01-28", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-28", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 202, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-01-27T23:18:16+08:00", "utc": "1991-01-27T15:18:16Z", "ms": 664989495641.1078 }, "end": { "local": "1991-01-28T20:11:21+08:00", "utc": "1991-01-28T12:11:21Z", "ms": 665064680996.992 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-27T23:18:16+08:00", "utc": "1991-01-27T15:18:16Z", "ms": 664989495641.1078 }, "end": { "local": "1991-01-28T20:11:21+08:00", "utc": "1991-01-28T12:11:21Z", "ms": 665064680996.992 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-01-27", "window": { "start": { "local": "1991-01-27T18:28:18+08:00", "utc": "1991-01-27T10:28:18Z", "ms": 664972097973.8849 }, "end": { "local": "1991-01-27T20:14:04+08:00", "utc": "1991-01-27T12:14:04Z", "ms": 664978444095.2145 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "1991-01-28", "window": { "start": { "local": "1991-01-28T18:29:06+08:00", "utc": "1991-01-28T10:29:06Z", "ms": 665058546266.5883 }, "end": { "local": "1991-01-28T20:14:43+08:00", "utc": "1991-01-28T12:14:43Z", "ms": 665064882578.3468 } }, "covered_min": 102, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:18 on Sun 27 Jan to 20:11 on Mon 28 Jan.", "fact": "1991-01-27T15:18:16Z → 1991-01-28T12:11:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:28–20:14 on the 27th, 18:29–20:15 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 106 minutes on the 27th and 102 of 106 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 202 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Monday 28 January.", "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": "1991-01-28", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-28", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Monday 28 January. Trayodaśī runs from 23:18 on Sun 27 Jan to 20:11 on Mon 28 Jan and covers 102 of 106 minutes of pradoṣa that evening. It is 3 min 22 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-01-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2400, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-01-29T17:05:38+08:00", "utc": "1991-01-29T09:05:38Z", "ms": 665139938472.8291 }, "end": { "local": "1991-01-30T14:09:42+08:00", "utc": "1991-01-30T06:09:42Z", "ms": 665215782225.0758 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1991-01-29T17:05:38+08:00", "utc": "1991-01-29T09:05:38Z", "ms": 665139938472.8291 }, "end": { "local": "1991-01-30T14:09:42+08:00", "utc": "1991-01-30T06:09:42Z", "ms": 665215782225.0758 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-01-29", "window": { "start": { "local": "1991-01-29T12:41:31+08:00", "utc": "1991-01-29T04:41:31Z", "ms": 665124091494.1617 }, "end": { "local": "1991-01-29T13:29:31+08:00", "utc": "1991-01-29T05:29:31Z", "ms": 665126971494.1617 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-01-30", "window": { "start": { "local": "1991-01-30T12:41:42+08:00", "utc": "1991-01-30T04:41:42Z", "ms": 665210502090.9423 }, "end": { "local": "1991-01-30T13:29:42+08:00", "utc": "1991-01-30T05:29:42Z", "ms": 665213382090.9423 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:06 on Tue 29 Jan to 14:10 on Wed 30 Jan.", "fact": "1991-01-29T09:05:38Z → 1991-01-30T06:09:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 29th, 12:42–13:30 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "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 2400 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Zunyi, 1991: Wednesday 30 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maghi-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Maghi purnima (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-01-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-01-30", "confidence": "boundary" } ], "quote": "In Zunyi, Māghī Pūrṇimā 1991 falls on Wednesday 30 January. Pūrṇimā runs from 17:06 on Tue 29 Jan to 14:10 on Wed 30 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-02-02", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-02-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32618, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-02-02T07:47:40+08:00", "utc": "1991-02-01T23:47:40Z", "ms": 665452059737.0117 }, "end": { "local": "1991-02-03T06:54:58+08:00", "utc": "1991-02-02T22:54:58Z", "ms": 665535297956.7466 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1991-02-02T07:47:40+08:00", "utc": "1991-02-01T23:47:40Z", "ms": 665452059737.0117 }, "end": { "local": "1991-02-03T06:54:58+08:00", "utc": "1991-02-02T22:54:58Z", "ms": 665535297956.7466 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-02-01", "window": { "start": { "local": "1991-02-01T20:51:22+08:00", "utc": "1991-02-01T12:51:22Z", "ms": 665412681604.8499 }, "end": { "local": "1991-02-01T20:51:22+08:00", "utc": "1991-02-01T12:51:22Z", "ms": 665412681604.8499 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-02-02", "window": { "start": { "local": "1991-02-02T21:51:20+08:00", "utc": "1991-02-02T13:51:20Z", "ms": 665502680340.4003 }, "end": { "local": "1991-02-02T21:51:20+08:00", "utc": "1991-02-02T13:51:20Z", "ms": 665502680340.4003 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:48 on Sat 2 Feb to 06:55 on Sun 3 Feb.", "fact": "1991-02-01T23:47:40Z → 1991-02-02T22:54:58Z" }, { "step": "kaala", "text": "Moonrise is at 20:51 on the 1st and 21:51 on the 2nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 1st and is on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32618 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Saturday 2 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": "1991-02-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-02-02", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Saturday 2 February. Caturthī runs from 07:48 on Sat 2 Feb to 06:55 on Sun 3 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-02-02", "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/1991/ekadashi?on=1991-02-10", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-02-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30612, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-02-09T16:05:12+08:00", "utc": "1991-02-09T08:05:12Z", "ms": 666086712101.3401 }, "end": { "local": "1991-02-10T18:42:55+08:00", "utc": "1991-02-10T10:42:55Z", "ms": 666182574717.1031 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1991-02-09T16:05:12+08:00", "utc": "1991-02-09T08:05:12Z", "ms": 666086712101.3401 }, "end": { "local": "1991-02-10T18:42:55+08:00", "utc": "1991-02-10T10:42:55Z", "ms": 666182574717.1031 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-02-09", "window": { "start": { "local": "1991-02-09T07:35:00+08:00", "utc": "1991-02-08T23:35:00Z", "ms": 666056099610.1499 }, "end": { "local": "1991-02-09T07:35:00+08:00", "utc": "1991-02-08T23:35:00Z", "ms": 666056099610.1499 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-02-10", "window": { "start": { "local": "1991-02-10T07:34:18+08:00", "utc": "1991-02-09T23:34:18Z", "ms": 666142458386.5154 }, "end": { "local": "1991-02-10T07:34:18+08:00", "utc": "1991-02-09T23:34:18Z", "ms": 666142458386.5154 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:05 on Sat 9 Feb to 18:43 on Sun 10 Feb.", "fact": "1991-02-09T08:05:12Z → 1991-02-10T10:42:55Z" }, { "step": "kaala", "text": "Sunrise is at 07:35 on the 9th and 07:34 on the 10th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 9th and is on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30612 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Zunyi, 1991: Sunday 10 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": "1991-02-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-02-10", "confidence": "determinate" } ], "quote": "In Zunyi, Vijayā Ekādaśī 1991 falls on Sunday 10 February. Ekādaśī runs from 16:05 on Sat 9 Feb to 18:43 on Sun 10 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-02-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-02-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 475, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-02-12T23:05:07+08:00", "utc": "1991-02-12T15:05:07Z", "ms": 666371107204.4504 }, "end": { "local": "1991-02-14T00:34:28+08:00", "utc": "1991-02-13T16:34:28Z", "ms": 666462868383.1097 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1991-02-12T23:05:07+08:00", "utc": "1991-02-12T15:05:07Z", "ms": 666371107204.4504 }, "end": { "local": "1991-02-14T00:34:28+08:00", "utc": "1991-02-13T16:34:28Z", "ms": 666462868383.1097 } }, "kaala": "nishita", "days": [ { "local_date": "1991-02-12", "window": { "start": { "local": "1991-02-13T00:42:24+08:00", "utc": "1991-02-12T16:42:24Z", "ms": 666376944388.2817 }, "end": { "local": "1991-02-13T01:30:24+08:00", "utc": "1991-02-12T17:30:24Z", "ms": 666379824388.2817 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-02-13", "window": { "start": { "local": "1991-02-14T00:42:23+08:00", "utc": "1991-02-13T16:42:23Z", "ms": 666463343347.4905 }, "end": { "local": "1991-02-14T01:30:23+08:00", "utc": "1991-02-13T17:30:23Z", "ms": 666466223347.4905 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:05 on Tue 12 Feb to 00:34 on Thu 14 Feb.", "fact": "1991-02-12T15:05:07Z → 1991-02-13T16:34:28Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:42–01:30 on the 12th, 00:42–01:30 on the 13th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 475 s" }, { "step": "ruling", "text": "Mahāśivarātri, Zunyi, 1991: Tuesday 12 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-02-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-02-12", "confidence": "determinate" } ], "quote": "In Zunyi, Mahāśivarātri 1991 falls on Tuesday 12 February. Caturdaśī runs from 23:05 on Tue 12 Feb to 00:34 on Thu 14 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/pradosha-vrata?on=1991-02-12", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-02-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2580, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-02-11T21:06:01+08:00", "utc": "1991-02-11T13:06:01Z", "ms": 666277560675.6248 }, "end": { "local": "1991-02-12T23:05:07+08:00", "utc": "1991-02-12T15:05:07Z", "ms": 666371107204.4504 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1991-02-11T21:06:01+08:00", "utc": "1991-02-11T13:06:01Z", "ms": 666277560675.6248 }, "end": { "local": "1991-02-12T23:05:07+08:00", "utc": "1991-02-12T15:05:07Z", "ms": 666371107204.4504 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-02-11", "window": { "start": { "local": "1991-02-11T18:39:57+08:00", "utc": "1991-02-11T10:39:57Z", "ms": 666268796943.7217 }, "end": { "local": "1991-02-11T20:23:00+08:00", "utc": "1991-02-11T12:23:00Z", "ms": 666274980341.0281 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1991-02-12", "window": { "start": { "local": "1991-02-12T18:40:41+08:00", "utc": "1991-02-12T10:40:41Z", "ms": 666355241045.4585 }, "end": { "local": "1991-02-12T20:23:33+08:00", "utc": "1991-02-12T12:23:33Z", "ms": 666361412603.5447 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:06 on Mon 11 Feb to 23:05 on Tue 12 Feb.", "fact": "1991-02-11T13:06:01Z → 1991-02-12T15:05:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:40–20:23 on the 11th, 18:41–20:24 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 103 minutes on the 11th and 103 of 103 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 2580 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Tuesday 12 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-02-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-02-12", "confidence": "boundary" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Tuesday 12 February. Trayodaśī runs from 21:06 on Mon 11 Feb to 23:05 on Tue 12 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-02-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-02-18", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-02-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39436, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-02-18T01:21:55+08:00", "utc": "1991-02-17T17:21:55Z", "ms": 666811315368.9496 }, "end": { "local": "1991-02-19T00:27:48+08:00", "utc": "1991-02-18T16:27:48Z", "ms": 666894468279.566 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1991-02-18T01:21:55+08:00", "utc": "1991-02-17T17:21:55Z", "ms": 666811315368.9496 }, "end": { "local": "1991-02-19T00:27:48+08:00", "utc": "1991-02-18T16:27:48Z", "ms": 666894468279.566 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-02-17", "window": { "start": { "local": "1991-02-17T12:42:37+08:00", "utc": "1991-02-17T04:42:37Z", "ms": 666765756876.8324 }, "end": { "local": "1991-02-17T13:30:37+08:00", "utc": "1991-02-17T05:30:37Z", "ms": 666768636876.8324 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-02-18", "window": { "start": { "local": "1991-02-18T12:42:33+08:00", "utc": "1991-02-18T04:42:33Z", "ms": 666852152717.796 }, "end": { "local": "1991-02-18T13:30:33+08:00", "utc": "1991-02-18T05:30:33Z", "ms": 666855032717.796 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:22 on Mon 18 Feb to 00:28 on Tue 19 Feb.", "fact": "1991-02-17T17:21:55Z → 1991-02-18T16:27:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 17th, 12:43–13:31 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 39436 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1991: Monday 18 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-02-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-02-18", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1991 falls on Monday 18 February. Caturthī runs from 01:22 on Mon 18 Feb to 00:28 on Tue 19 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-02-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/ekadashi?on=1991-02-25", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-02-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13555, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-02-24T13:30:18+08:00", "utc": "1991-02-24T05:30:18Z", "ms": 667373418423.5829 }, "end": { "local": "1991-02-25T11:07:47+08:00", "utc": "1991-02-25T03:07:47Z", "ms": 667451267261.2084 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1991-02-24T13:30:18+08:00", "utc": "1991-02-24T05:30:18Z", "ms": 667373418423.5829 }, "end": { "local": "1991-02-25T11:07:47+08:00", "utc": "1991-02-25T03:07:47Z", "ms": 667451267261.2084 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-02-24", "window": { "start": { "local": "1991-02-24T07:22:48+08:00", "utc": "1991-02-23T23:22:48Z", "ms": 667351368185.1036 }, "end": { "local": "1991-02-24T07:22:48+08:00", "utc": "1991-02-23T23:22:48Z", "ms": 667351368185.1036 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-02-25", "window": { "start": { "local": "1991-02-25T07:21:52+08:00", "utc": "1991-02-24T23:21:52Z", "ms": 667437711802.9751 }, "end": { "local": "1991-02-25T07:21:52+08:00", "utc": "1991-02-24T23:21:52Z", "ms": 667437711802.9751 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:30 on Sun 24 Feb to 11:08 on Mon 25 Feb.", "fact": "1991-02-24T05:30:18Z → 1991-02-25T03:07:47Z" }, { "step": "kaala", "text": "Sunrise is at 07:23 on the 24th and 07:22 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 13555 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Zunyi, 1991: Monday 25 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-02-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-02-25", "confidence": "determinate" } ], "quote": "In Zunyi, Āmalakī Ekādaśī 1991 falls on Monday 25 February. Ekādaśī runs from 13:30 on Sun 24 Feb to 11:08 on Mon 25 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-02-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-02-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-02-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35698, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-02-26T08:44:23+08:00", "utc": "1991-02-26T00:44:23Z", "ms": 667529062800.097 }, "end": { "local": "1991-02-27T06:25:11+08:00", "utc": "1991-02-26T22:25:11Z", "ms": 667607110835.6042 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1991-02-26T08:44:23+08:00", "utc": "1991-02-26T00:44:23Z", "ms": 667529062800.097 }, "end": { "local": "1991-02-27T06:25:11+08:00", "utc": "1991-02-26T22:25:11Z", "ms": 667607110835.6042 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-02-25", "window": { "start": { "local": "1991-02-25T18:49:37+08:00", "utc": "1991-02-25T10:49:37Z", "ms": 667478977181.1676 }, "end": { "local": "1991-02-25T20:29:48+08:00", "utc": "1991-02-25T12:29:48Z", "ms": 667484987506.7314 } }, "covered_min": 0, "window_min": 100, "qualifies": false }, { "local_date": "1991-02-26", "window": { "start": { "local": "1991-02-26T18:50:15+08:00", "utc": "1991-02-26T10:50:15Z", "ms": 667565415480.8467 }, "end": { "local": "1991-02-26T20:30:13+08:00", "utc": "1991-02-26T12:30:13Z", "ms": 667571412973.4395 } }, "covered_min": 100, "window_min": 100, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:44 on Tue 26 Feb to 06:25 on Wed 27 Feb.", "fact": "1991-02-26T00:44:23Z → 1991-02-26T22:25:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:50–20:30 on the 25th, 18:50–20:30 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 100 minutes on the 25th and 100 of 100 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35698 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Tuesday 26 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-02-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-02-26", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Tuesday 26 February. Trayodaśī runs from 08:44 on Tue 26 Feb to 06:25 on Wed 27 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-02-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-02-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27183, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-02-28T04:16:17+08:00", "utc": "1991-02-27T20:16:17Z", "ms": 667685776811.6257 }, "end": { "local": "1991-03-01T02:24:34+08:00", "utc": "1991-02-28T18:24:34Z", "ms": 667765473913.3535 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1991-02-28T04:16:17+08:00", "utc": "1991-02-27T20:16:17Z", "ms": 667685776811.6257 }, "end": { "local": "1991-03-01T02:24:34+08:00", "utc": "1991-02-28T18:24:34Z", "ms": 667765473913.3535 } }, "kaala": "sayahna", "days": [ { "local_date": "1991-02-27", "window": { "start": { "local": "1991-02-27T16:32:42+08:00", "utc": "1991-02-27T08:32:42Z", "ms": 667643562041.5233 }, "end": { "local": "1991-02-27T18:50:53+08:00", "utc": "1991-02-27T10:50:53Z", "ms": 667651853383.0809 } }, "covered_min": 0, "window_min": 138, "qualifies": false }, { "local_date": "1991-02-28", "window": { "start": { "local": "1991-02-28T16:33:00+08:00", "utc": "1991-02-28T08:33:00Z", "ms": 667729980317.9814 }, "end": { "local": "1991-02-28T18:51:31+08:00", "utc": "1991-02-28T10:51:31Z", "ms": 667738290899.7401 } }, "covered_min": 139, "window_min": 139, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:16 on Thu 28 Feb to 02:25 on Fri 1 Mar.", "fact": "1991-02-27T20:16:17Z → 1991-02-28T18:24:34Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:33–18:51 on the 27th, 16:33–18:52 on the 28th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 138 minutes on the 27th and 139 of 139 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27183 s" }, { "step": "ruling", "text": "Holikā Dahana, Zunyi, 1991: Thursday 28 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "holika-dahana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana." } ], "not_evaluated": "The hour the row gives for the rite (\"it should be observed on second half of purnima at night\") is not tested: sāyāhna alone settles the day.", "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-02-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-02-28", "confidence": "determinate" } ], "quote": "In Zunyi, Holikā Dahana 1991 falls on Thursday 28 February. Pūrṇimā runs from 04:16 on Thu 28 Feb to 02:25 on Fri 1 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27183, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-02-28T04:16:17+08:00", "utc": "1991-02-27T20:16:17Z", "ms": 667685776811.6257 }, "end": { "local": "1991-03-01T02:24:34+08:00", "utc": "1991-02-28T18:24:34Z", "ms": 667765473913.3535 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1991-02-28T04:16:17+08:00", "utc": "1991-02-27T20:16:17Z", "ms": 667685776811.6257 }, "end": { "local": "1991-03-01T02:24:34+08:00", "utc": "1991-02-28T18:24:34Z", "ms": 667765473913.3535 } }, "kaala": "sayahna", "days": [ { "local_date": "1991-02-27", "window": { "start": { "local": "1991-02-27T16:32:42+08:00", "utc": "1991-02-27T08:32:42Z", "ms": 667643562041.5233 }, "end": { "local": "1991-02-27T18:50:53+08:00", "utc": "1991-02-27T10:50:53Z", "ms": 667651853383.0809 } }, "covered_min": 0, "window_min": 138, "qualifies": false }, { "local_date": "1991-02-28", "window": { "start": { "local": "1991-02-28T16:33:00+08:00", "utc": "1991-02-28T08:33:00Z", "ms": 667729980317.9814 }, "end": { "local": "1991-02-28T18:51:31+08:00", "utc": "1991-02-28T10:51:31Z", "ms": 667738290899.7401 } }, "covered_min": 139, "window_min": 139, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1991-02-28", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:16 on Thu 28 Feb to 02:25 on Fri 1 Mar.", "fact": "1991-02-27T20:16:17Z → 1991-02-28T18:24:34Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:33–18:51 on the 27th, 16:33–18:52 on the 28th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 138 minutes on the 27th and 139 of 139 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27183 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Thursday 28 February is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Zunyi, 1991: Friday 1 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "holi", "follows": { "festival": "holika-dahana", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana." } ], "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-01", "confidence": "determinate" } ], "quote": "In Zunyi, Holī 1991 falls on Friday 1 March. It is kept the day after Holikā Dahana, which falls on Thursday 28 February. Pūrṇimā runs from 04:16 on Thu 28 Feb to 02:25 on Fri 1 Mar and covers all of sāyāhna on the 28th.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17605, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1991-03-01T02:24:34+08:00", "utc": "1991-02-28T18:24:34Z", "ms": 667765473913.3535 }, "end": { "local": "1991-03-02T00:57:20+08:00", "utc": "1991-03-01T16:57:20Z", "ms": 667846640211.8484 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-01T02:24:34+08:00", "utc": "1991-02-28T18:24:34Z", "ms": 667765473913.3535 }, "end": { "local": "1991-03-02T00:57:20+08:00", "utc": "1991-03-01T16:57:20Z", "ms": 667846640211.8484 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-03-01", "window": { "start": { "local": "1991-03-01T07:17:59+08:00", "utc": "1991-02-28T23:17:59Z", "ms": 667783078600.8384 }, "end": { "local": "1991-03-01T07:17:59+08:00", "utc": "1991-02-28T23:17:59Z", "ms": 667783078600.8384 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-03-02", "window": { "start": { "local": "1991-03-02T07:16:59+08:00", "utc": "1991-03-01T23:16:59Z", "ms": 667869418536.0873 }, "end": { "local": "1991-03-02T07:16:59+08:00", "utc": "1991-03-01T23:16:59Z", "ms": 667869418536.0873 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:25 on Fri 1 Mar to 00:57 on Sat 2 Mar.", "fact": "1991-02-28T18:24:34Z → 1991-03-01T16:57:20Z" }, { "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": "Pratipadā must be current at sunrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17605 s" }, { "step": "ruling", "text": "Vasantotsava, Zunyi, 1991: Friday 1 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasantotsava", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "sunrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-01", "confidence": "determinate" } ], "quote": "In Zunyi, Vasantotsava 1991 falls on Friday 1 March. Pratipadā runs from 02:25 on Fri 1 Mar to 00:57 on Sat 2 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-03-04", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5885, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-03-03T23:43:50+08:00", "utc": "1991-03-03T15:43:50Z", "ms": 668015030019.0594 }, "end": { "local": "1991-03-05T00:07:44+08:00", "utc": "1991-03-04T16:07:44Z", "ms": 668102864036.27 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-03T23:43:50+08:00", "utc": "1991-03-03T15:43:50Z", "ms": 668015030019.0594 }, "end": { "local": "1991-03-05T00:07:44+08:00", "utc": "1991-03-04T16:07:44Z", "ms": 668102864036.27 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-03-03", "window": { "start": { "local": "1991-03-03T21:31:40+08:00", "utc": "1991-03-03T13:31:40Z", "ms": 668007099796.6984 }, "end": { "local": "1991-03-03T21:31:40+08:00", "utc": "1991-03-03T13:31:40Z", "ms": 668007099796.6984 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-03-04", "window": { "start": { "local": "1991-03-04T22:29:39+08:00", "utc": "1991-03-04T14:29:39Z", "ms": 668096979257.7338 }, "end": { "local": "1991-03-04T22:29:39+08:00", "utc": "1991-03-04T14:29:39Z", "ms": 668096979257.7338 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:44 on Sun 3 Mar to 00:08 on Tue 5 Mar.", "fact": "1991-03-03T15:43:50Z → 1991-03-04T16:07:44Z" }, { "step": "kaala", "text": "Moonrise is at 21:32 on the 3rd and 22:30 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 5885 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Monday 4 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": "1991-03-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-04", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Monday 4 March. Caturthī runs from 23:44 on Sun 3 Mar to 00:08 on Tue 5 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-03-04", "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/1991/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17334, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1991-03-08T05:16:05+08:00", "utc": "1991-03-07T21:16:05Z", "ms": 668380565257.6227 }, "end": { "local": "1991-03-09T07:50:23+08:00", "utc": "1991-03-08T23:50:23Z", "ms": 668476223476.791 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-08T05:16:05+08:00", "utc": "1991-03-07T21:16:05Z", "ms": 668380565257.6227 }, "end": { "local": "1991-03-09T07:50:23+08:00", "utc": "1991-03-08T23:50:23Z", "ms": 668476223476.791 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-08", "window": { "start": { "local": "1991-03-08T12:39:32+08:00", "utc": "1991-03-08T04:39:32Z", "ms": 668407172192.5103 }, "end": { "local": "1991-03-08T13:27:32+08:00", "utc": "1991-03-08T05:27:32Z", "ms": 668410052192.5103 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-03-09", "window": { "start": { "local": "1991-03-09T12:39:18+08:00", "utc": "1991-03-09T04:39:18Z", "ms": 668493557530.0206 }, "end": { "local": "1991-03-09T13:27:18+08:00", "utc": "1991-03-09T05:27:18Z", "ms": 668496437530.0206 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 05:16 on Fri 8 Mar to 07:50 on Sat 9 Mar.", "fact": "1991-03-07T21:16:05Z → 1991-03-08T23:50:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 8th, 12:39–13:27 on the 9th.", "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 8th and 0 of 48 on the 9th.", "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 17334 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Zunyi, 1991: Friday 8 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": "1991-03-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-08", "confidence": "determinate" } ], "quote": "In Zunyi, Śītalāṣṭamī 1991 falls on Friday 8 March. Aṣṭamī runs from 05:16 on Fri 8 Mar to 07:50 on Sat 9 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-03-12", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20600, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-03-11T12:50:52+08:00", "utc": "1991-03-11T04:50:52Z", "ms": 668667052187.0802 }, "end": { "local": "1991-03-12T14:47:50+08:00", "utc": "1991-03-12T06:47:50Z", "ms": 668760469879.4749 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-11T12:50:52+08:00", "utc": "1991-03-11T04:50:52Z", "ms": 668667052187.0802 }, "end": { "local": "1991-03-12T14:47:50+08:00", "utc": "1991-03-12T06:47:50Z", "ms": 668760469879.4749 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-03-11", "window": { "start": { "local": "1991-03-11T07:07:33+08:00", "utc": "1991-03-10T23:07:33Z", "ms": 668646452594.2031 }, "end": { "local": "1991-03-11T07:07:33+08:00", "utc": "1991-03-10T23:07:33Z", "ms": 668646452594.2031 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-03-12", "window": { "start": { "local": "1991-03-12T07:06:27+08:00", "utc": "1991-03-11T23:06:27Z", "ms": 668732787430.588 }, "end": { "local": "1991-03-12T07:06:27+08:00", "utc": "1991-03-11T23:06:27Z", "ms": 668732787430.588 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:51 on Mon 11 Mar to 14:48 on Tue 12 Mar.", "fact": "1991-03-11T04:50:52Z → 1991-03-12T06:47:50Z" }, { "step": "kaala", "text": "Sunrise is at 07:08 on the 11th and 07:06 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 20600 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Zunyi, 1991: Tuesday 12 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-12", "confidence": "determinate" } ], "quote": "In Zunyi, Pāpamocanī Ekādaśī 1991 falls on Tuesday 12 March. Ekādaśī runs from 12:51 on Mon 11 Mar to 14:48 on Tue 12 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-03-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-03-13", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7842, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-03-13T16:08:44+08:00", "utc": "1991-03-13T08:08:44Z", "ms": 668851724445.9697 }, "end": { "local": "1991-03-14T16:49:00+08:00", "utc": "1991-03-14T08:49:00Z", "ms": 668940540192.7334 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-13T16:08:44+08:00", "utc": "1991-03-13T08:08:44Z", "ms": 668851724445.9697 }, "end": { "local": "1991-03-14T16:49:00+08:00", "utc": "1991-03-14T08:49:00Z", "ms": 668940540192.7334 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-03-13", "window": { "start": { "local": "1991-03-13T18:59:09+08:00", "utc": "1991-03-13T10:59:09Z", "ms": 668861949206.9171 }, "end": { "local": "1991-03-13T20:35:50+08:00", "utc": "1991-03-13T12:35:50Z", "ms": 668867750122.1444 } }, "covered_min": 97, "window_min": 97, "qualifies": true }, { "local_date": "1991-03-14", "window": { "start": { "local": "1991-03-14T18:59:43+08:00", "utc": "1991-03-14T10:59:43Z", "ms": 668948382592.8209 }, "end": { "local": "1991-03-14T20:36:10+08:00", "utc": "1991-03-14T12:36:10Z", "ms": 668954170237.5748 } }, "covered_min": 0, "window_min": 96, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:09 on Wed 13 Mar to 16:49 on Thu 14 Mar.", "fact": "1991-03-13T08:08:44Z → 1991-03-14T08:49:00Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:59–20:36 on the 13th, 19:00–20:36 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 97 of 97 minutes on the 13th and 0 of 96 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 7842 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Wednesday 13 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": "1991-03-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-13", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Wednesday 13 March. Trayodaśī runs from 16:09 on Wed 13 Mar to 16:49 on Thu 14 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-03-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shivaratri?on=1991-03-14", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28106, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-03-14T16:49:00+08:00", "utc": "1991-03-14T08:49:00Z", "ms": 668940540192.7334 }, "end": { "local": "1991-03-15T16:48:28+08:00", "utc": "1991-03-15T08:48:28Z", "ms": 669026908248.4873 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-14T16:49:00+08:00", "utc": "1991-03-14T08:49:00Z", "ms": 668940540192.7334 }, "end": { "local": "1991-03-15T16:48:28+08:00", "utc": "1991-03-15T08:48:28Z", "ms": 669026908248.4873 } }, "kaala": "nishita", "days": [ { "local_date": "1991-03-14", "window": { "start": { "local": "1991-03-15T00:37:26+08:00", "utc": "1991-03-14T16:37:26Z", "ms": 668968646260.6482 }, "end": { "local": "1991-03-15T01:25:26+08:00", "utc": "1991-03-14T17:25:26Z", "ms": 668971526260.6482 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-03-15", "window": { "start": { "local": "1991-03-16T00:37:10+08:00", "utc": "1991-03-15T16:37:10Z", "ms": 669055029636.7227 }, "end": { "local": "1991-03-16T01:25:10+08:00", "utc": "1991-03-15T17:25:10Z", "ms": 669057909636.7227 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:49 on Thu 14 Mar to 16:48 on Fri 15 Mar.", "fact": "1991-03-14T08:49:00Z → 1991-03-15T08:48:28Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:37–01:25 on the 14th, 00:37–01:25 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 28106 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Thursday 14 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": "1991-03-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-14", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Thursday 14 March. Caturdaśī runs from 16:49 on Thu 14 Mar to 16:48 on Fri 15 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-03-14", "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/1991/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5733, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1991-03-16T16:10:29+08:00", "utc": "1991-03-16T08:10:29Z", "ms": 669111029032.4825 }, "end": { "local": "1991-03-17T15:00:42+08:00", "utc": "1991-03-17T07:00:42Z", "ms": 669193242032.125 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-16T16:10:29+08:00", "utc": "1991-03-16T08:10:29Z", "ms": 669111029032.4825 }, "end": { "local": "1991-03-17T15:00:42+08:00", "utc": "1991-03-17T07:00:42Z", "ms": 669193242032.125 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-16", "window": { "start": { "local": "1991-03-16T12:37:26+08:00", "utc": "1991-03-16T04:37:26Z", "ms": 669098246116.9656 }, "end": { "local": "1991-03-16T13:25:26+08:00", "utc": "1991-03-16T05:25:26Z", "ms": 669101126116.9656 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-03-17", "window": { "start": { "local": "1991-03-17T12:37:09+08:00", "utc": "1991-03-17T04:37:09Z", "ms": 669184629164.4073 }, "end": { "local": "1991-03-17T13:25:09+08:00", "utc": "1991-03-17T05:25:09Z", "ms": 669187509164.4073 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 16:10 on Sat 16 Mar to 15:01 on Sun 17 Mar.", "fact": "1991-03-16T08:10:29Z → 1991-03-17T07:00:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 16th, 12:37–13:25 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5733 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Zunyi, 1991: Sunday 17 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": "1991-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-17", "confidence": "determinate" } ], "quote": "In Zunyi, Navarātrārambha (Caitra) (Chaitra Navratri) 1991 falls on Sunday 17 March. Pratipadā runs from 16:10 on Sat 16 Mar to 15:01 on Sun 17 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-19", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 67, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1991-03-18T13:25:59+08:00", "utc": "1991-03-18T05:25:59Z", "ms": 669273959245.8184 }, "end": { "local": "1991-03-19T11:33:30+08:00", "utc": "1991-03-19T03:33:30Z", "ms": 669353609645.7631 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-18T13:25:59+08:00", "utc": "1991-03-18T05:25:59Z", "ms": 669273959245.8184 }, "end": { "local": "1991-03-19T11:33:30+08:00", "utc": "1991-03-19T03:33:30Z", "ms": 669353609645.7631 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-18", "window": { "start": { "local": "1991-03-18T12:36:52+08:00", "utc": "1991-03-18T04:36:52Z", "ms": 669271012003.9353 }, "end": { "local": "1991-03-18T13:24:52+08:00", "utc": "1991-03-18T05:24:52Z", "ms": 669273892003.9353 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-03-19", "window": { "start": { "local": "1991-03-19T12:36:35+08:00", "utc": "1991-03-19T04:36:35Z", "ms": 669357394652.0039 }, "end": { "local": "1991-03-19T13:24:35+08:00", "utc": "1991-03-19T05:24:35Z", "ms": 669360274652.0039 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:26 on Mon 18 Mar to 11:33 on Tue 19 Mar.", "fact": "1991-03-18T05:25:59Z → 1991-03-19T03:33:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 18th, 12:37–13:25 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 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": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: unstated → second-day · margin 67 s < 300 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Zunyi, 1991: Tuesday 19 March.", "fact": "confidence: boundary (margin)" } ], "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": "1991-03-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-18", "confidence": "determinate" } ], "quote": "In Zunyi, Gaurī Tṛtīyā (Gangaur) 1991 falls on Tuesday 19 March. Tṛtīyā runs from 13:26 on Mon 18 Mar to 11:33 on Tue 19 Mar, and reaches madhyāhna on neither day. It is 1 min 07 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-19", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 67, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1991-03-18T13:25:59+08:00", "utc": "1991-03-18T05:25:59Z", "ms": 669273959245.8184 }, "end": { "local": "1991-03-19T11:33:30+08:00", "utc": "1991-03-19T03:33:30Z", "ms": 669353609645.7631 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-18T13:25:59+08:00", "utc": "1991-03-18T05:25:59Z", "ms": 669273959245.8184 }, "end": { "local": "1991-03-19T11:33:30+08:00", "utc": "1991-03-19T03:33:30Z", "ms": 669353609645.7631 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-18", "window": { "start": { "local": "1991-03-18T12:36:52+08:00", "utc": "1991-03-18T04:36:52Z", "ms": 669271012003.9353 }, "end": { "local": "1991-03-18T13:24:52+08:00", "utc": "1991-03-18T05:24:52Z", "ms": 669273892003.9353 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-03-19", "window": { "start": { "local": "1991-03-19T12:36:35+08:00", "utc": "1991-03-19T04:36:35Z", "ms": 669357394652.0039 }, "end": { "local": "1991-03-19T13:24:35+08:00", "utc": "1991-03-19T05:24:35Z", "ms": 669360274652.0039 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:26 on Mon 18 Mar to 11:33 on Tue 19 Mar.", "fact": "1991-03-18T05:25:59Z → 1991-03-19T03:33:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 18th, 12:37–13:25 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 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": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 67 s < 300 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Zunyi, 1991: Tuesday 19 March.", "fact": "confidence: boundary (margin)" } ], "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": "1991-03-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-18", "confidence": "determinate" } ], "quote": "In Zunyi, Saubhāgya Śayana Vrata 1991 falls on Tuesday 19 March. Tṛtīyā runs from 13:26 on Mon 18 Mar to 11:33 on Tue 19 Mar, and reaches madhyāhna on neither day. It is 1 min 07 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vinayaka-chaturthi?on=1991-03-19", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3785, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-03-19T11:33:30+08:00", "utc": "1991-03-19T03:33:30Z", "ms": 669353609645.7631 }, "end": { "local": "1991-03-20T09:29:56+08:00", "utc": "1991-03-20T01:29:56Z", "ms": 669432596417.9471 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-19T11:33:30+08:00", "utc": "1991-03-19T03:33:30Z", "ms": 669353609645.7631 }, "end": { "local": "1991-03-20T09:29:56+08:00", "utc": "1991-03-20T01:29:56Z", "ms": 669432596417.9471 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-19", "window": { "start": { "local": "1991-03-19T12:36:35+08:00", "utc": "1991-03-19T04:36:35Z", "ms": 669357394652.0039 }, "end": { "local": "1991-03-19T13:24:35+08:00", "utc": "1991-03-19T05:24:35Z", "ms": 669360274652.0039 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-03-20", "window": { "start": { "local": "1991-03-20T12:36:17+08:00", "utc": "1991-03-20T04:36:17Z", "ms": 669443777125.2498 }, "end": { "local": "1991-03-20T13:24:17+08:00", "utc": "1991-03-20T05:24:17Z", "ms": 669446657125.2498 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:33 on Tue 19 Mar to 09:30 on Wed 20 Mar.", "fact": "1991-03-19T03:33:30Z → 1991-03-20T01:29:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 19th, 12:36–13:24 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3785 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1991: Tuesday 19 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-19", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1991 falls on Tuesday 19 March. Caturthī runs from 11:33 on Tue 19 Mar to 09:30 on Wed 20 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-03-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11181, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1991-03-20T09:29:56+08:00", "utc": "1991-03-20T01:29:56Z", "ms": 669432596417.9471 }, "end": { "local": "1991-03-21T07:21:07+08:00", "utc": "1991-03-20T23:21:07Z", "ms": 669511266757.9803 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-20T09:29:56+08:00", "utc": "1991-03-20T01:29:56Z", "ms": 669432596417.9471 }, "end": { "local": "1991-03-21T07:21:07+08:00", "utc": "1991-03-20T23:21:07Z", "ms": 669511266757.9803 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-20", "window": { "start": { "local": "1991-03-20T12:36:17+08:00", "utc": "1991-03-20T04:36:17Z", "ms": 669443777125.2498 }, "end": { "local": "1991-03-20T13:24:17+08:00", "utc": "1991-03-20T05:24:17Z", "ms": 669446657125.2498 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-03-21", "window": { "start": { "local": "1991-03-21T12:35:59+08:00", "utc": "1991-03-21T04:35:59Z", "ms": 669530159440.7571 }, "end": { "local": "1991-03-21T13:23:59+08:00", "utc": "1991-03-21T05:23:59Z", "ms": 669533039440.7571 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 09:30 on Wed 20 Mar to 07:21 on Thu 21 Mar.", "fact": "1991-03-20T01:29:56Z → 1991-03-20T23:21:07Z" }, { "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": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11181 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Zunyi, 1991: Wednesday 20 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "lakshmi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-20", "confidence": "determinate" } ], "quote": "In Zunyi, Lakṣmī Pañcamī 1991 falls on Wednesday 20 March. Pañcamī runs from 09:30 on Wed 20 Mar to 07:21 on Thu 21 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34249, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1991-03-23T03:04:34+08:00", "utc": "1991-03-22T19:04:34Z", "ms": 669668674384.0419 }, "end": { "local": "1991-03-24T01:02:14+08:00", "utc": "1991-03-23T17:02:14Z", "ms": 669747734341.5416 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-23T03:04:34+08:00", "utc": "1991-03-22T19:04:34Z", "ms": 669668674384.0419 }, "end": { "local": "1991-03-24T01:02:14+08:00", "utc": "1991-03-23T17:02:14Z", "ms": 669747734341.5416 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-23", "window": { "start": { "local": "1991-03-23T12:35:24+08:00", "utc": "1991-03-23T04:35:24Z", "ms": 669702923670.5195 }, "end": { "local": "1991-03-23T13:23:24+08:00", "utc": "1991-03-23T05:23:24Z", "ms": 669705803670.5195 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-03-24", "window": { "start": { "local": "1991-03-24T12:35:06+08:00", "utc": "1991-03-24T04:35:06Z", "ms": 669789305623.0549 }, "end": { "local": "1991-03-24T13:23:06+08:00", "utc": "1991-03-24T05:23:06Z", "ms": 669792185623.0549 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 03:05 on Sat 23 Mar to 01:02 on Sun 24 Mar.", "fact": "1991-03-22T19:04:34Z → 1991-03-23T17:02:14Z" }, { "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": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34249 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Zunyi, 1991: Saturday 23 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhavani-utpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Annapurna puja (Beng.) (paraviddha), Bhavani-utpatti (paraviddha), Asokastami (Special when combined with naks. Punarvasu and Wednesday, after mid-day)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-23", "confidence": "determinate" } ], "quote": "In Zunyi, Bhavānī Utpatti 1991 falls on Saturday 23 March. Aṣṭamī runs from 03:05 on Sat 23 Mar to 01:02 on Sun 24 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34969, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1991-03-24T01:02:14+08:00", "utc": "1991-03-23T17:02:14Z", "ms": 669747734341.5416 }, "end": { "local": "1991-03-24T23:05:55+08:00", "utc": "1991-03-24T15:05:55Z", "ms": 669827155057.7479 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-24T01:02:14+08:00", "utc": "1991-03-23T17:02:14Z", "ms": 669747734341.5416 }, "end": { "local": "1991-03-24T23:05:55+08:00", "utc": "1991-03-24T15:05:55Z", "ms": 669827155057.7479 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-23", "window": { "start": { "local": "1991-03-23T12:35:24+08:00", "utc": "1991-03-23T04:35:24Z", "ms": 669702923670.5195 }, "end": { "local": "1991-03-23T13:23:24+08:00", "utc": "1991-03-23T05:23:24Z", "ms": 669705803670.5195 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-03-24", "window": { "start": { "local": "1991-03-24T12:35:06+08:00", "utc": "1991-03-24T04:35:06Z", "ms": 669789305623.0549 }, "end": { "local": "1991-03-24T13:23:06+08:00", "utc": "1991-03-24T05:23:06Z", "ms": 669792185623.0549 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 01:02 on Sun 24 Mar to 23:06 on Sun 24 Mar.", "fact": "1991-03-23T17:02:14Z → 1991-03-24T15:05:55Z" }, { "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": "Navamī 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: unstated → only-day · margin 34969 s" }, { "step": "ruling", "text": "Rāma Navamī, Zunyi, 1991: Sunday 24 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rama-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Ramanavami (madhyahnavyapini, special with Punarvasu naks.), Rama jayanti." } ], "not_evaluated": "The row calls the day special when it falls with Punarvasu nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-24", "confidence": "determinate" } ], "quote": "In Zunyi, Rāma Navamī 1991 falls on Sunday 24 March. Navamī runs from 01:02 on Sun 24 Mar to 23:06 on Sun 24 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-03-26", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34447, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-03-25T21:16:43+08:00", "utc": "1991-03-25T13:16:43Z", "ms": 669907002508.5336 }, "end": { "local": "1991-03-26T19:36:01+08:00", "utc": "1991-03-26T11:36:01Z", "ms": 669987361072.4966 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-25T21:16:43+08:00", "utc": "1991-03-25T13:16:43Z", "ms": 669907002508.5336 }, "end": { "local": "1991-03-26T19:36:01+08:00", "utc": "1991-03-26T11:36:01Z", "ms": 669987361072.4966 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-03-26", "window": { "start": { "local": "1991-03-26T06:50:50+08:00", "utc": "1991-03-25T22:50:50Z", "ms": 669941449788.9153 }, "end": { "local": "1991-03-26T06:50:50+08:00", "utc": "1991-03-25T22:50:50Z", "ms": 669941449788.9153 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-03-27", "window": { "start": { "local": "1991-03-27T06:49:42+08:00", "utc": "1991-03-26T22:49:42Z", "ms": 670027782035.5498 }, "end": { "local": "1991-03-27T06:49:42+08:00", "utc": "1991-03-26T22:49:42Z", "ms": 670027782035.5498 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:17 on Mon 25 Mar to 19:36 on Tue 26 Mar.", "fact": "1991-03-25T13:16:43Z → 1991-03-26T11:36:01Z" }, { "step": "kaala", "text": "Sunrise is at 06:51 on the 26th and 06:50 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34447 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Zunyi, 1991: Tuesday 26 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-26", "confidence": "determinate" } ], "quote": "In Zunyi, Kāmadā Ekādaśī 1991 falls on Tuesday 26 March. Ekādaśī runs from 21:17 on Mon 25 Mar to 19:36 on Tue 26 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-03-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-03-27", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3639, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-03-27T18:06:02+08:00", "utc": "1991-03-27T10:06:02Z", "ms": 670068361521.4437 }, "end": { "local": "1991-03-28T16:49:57+08:00", "utc": "1991-03-28T08:49:57Z", "ms": 670150197120.4219 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-27T18:06:02+08:00", "utc": "1991-03-27T10:06:02Z", "ms": 670068361521.4437 }, "end": { "local": "1991-03-28T16:49:57+08:00", "utc": "1991-03-28T08:49:57Z", "ms": 670150197120.4219 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-03-27", "window": { "start": { "local": "1991-03-27T19:06:40+08:00", "utc": "1991-03-27T11:06:40Z", "ms": 670072000127.8583 }, "end": { "local": "1991-03-27T20:40:15+08:00", "utc": "1991-03-27T12:40:15Z", "ms": 670077615354.1133 } }, "covered_min": 94, "window_min": 94, "qualifies": true }, { "local_date": "1991-03-28", "window": { "start": { "local": "1991-03-28T19:07:11+08:00", "utc": "1991-03-28T11:07:11Z", "ms": 670158431360.9863 }, "end": { "local": "1991-03-28T20:40:33+08:00", "utc": "1991-03-28T12:40:33Z", "ms": 670164033404.3292 } }, "covered_min": 0, "window_min": 93, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:06 on Wed 27 Mar to 16:50 on Thu 28 Mar.", "fact": "1991-03-27T10:06:02Z → 1991-03-28T08:49:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:07–20:40 on the 27th, 19:07–20:41 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 94 of 94 minutes on the 27th and 0 of 93 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 3639 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Wednesday 27 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-27", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Wednesday 27 March. Trayodaśī runs from 18:06 on Wed 27 Mar to 16:50 on Thu 28 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-03-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12484, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-03-27T18:06:02+08:00", "utc": "1991-03-27T10:06:02Z", "ms": 670068361521.4437 }, "end": { "local": "1991-03-28T16:49:57+08:00", "utc": "1991-03-28T08:49:57Z", "ms": 670150197120.4219 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-27T18:06:02+08:00", "utc": "1991-03-27T10:06:02Z", "ms": 670068361521.4437 }, "end": { "local": "1991-03-28T16:49:57+08:00", "utc": "1991-03-28T08:49:57Z", "ms": 670150197120.4219 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-27", "window": { "start": { "local": "1991-03-27T12:34:11+08:00", "utc": "1991-03-27T04:34:11Z", "ms": 670048451081.7041 }, "end": { "local": "1991-03-27T13:22:11+08:00", "utc": "1991-03-27T05:22:11Z", "ms": 670051331081.7041 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-03-28", "window": { "start": { "local": "1991-03-28T12:33:53+08:00", "utc": "1991-03-28T04:33:53Z", "ms": 670134832842.8787 }, "end": { "local": "1991-03-28T13:21:53+08:00", "utc": "1991-03-28T05:21:53Z", "ms": 670137712842.8787 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:06 on Wed 27 Mar to 16:50 on Thu 28 Mar.", "fact": "1991-03-27T10:06:02Z → 1991-03-28T08:49:57Z" }, { "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": "Trayodaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12484 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Zunyi, 1991: Thursday 28 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ananga-trayodashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 13 Ananga trayodasi (purvaviddha), Mahavira jayanti (Jain)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-28", "confidence": "determinate" } ], "quote": "In Zunyi, Anaṅga Trayodaśī 1991 falls on Thursday 28 March. Trayodaśī runs from 18:06 on Wed 27 Mar to 16:50 on Thu 28 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9029, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-03-28T16:49:57+08:00", "utc": "1991-03-28T08:49:57Z", "ms": 670150197120.4219 }, "end": { "local": "1991-03-29T15:52:04+08:00", "utc": "1991-03-29T07:52:04Z", "ms": 670233123789.83 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-28T16:49:57+08:00", "utc": "1991-03-28T08:49:57Z", "ms": 670150197120.4219 }, "end": { "local": "1991-03-29T15:52:04+08:00", "utc": "1991-03-29T07:52:04Z", "ms": 670233123789.83 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-28", "window": { "start": { "local": "1991-03-28T12:33:53+08:00", "utc": "1991-03-28T04:33:53Z", "ms": 670134832842.8787 }, "end": { "local": "1991-03-28T13:21:53+08:00", "utc": "1991-03-28T05:21:53Z", "ms": 670137712842.8787 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-03-29", "window": { "start": { "local": "1991-03-29T12:33:35+08:00", "utc": "1991-03-29T04:33:35Z", "ms": 670221214613.5999 }, "end": { "local": "1991-03-29T13:21:35+08:00", "utc": "1991-03-29T05:21:35Z", "ms": 670224094613.5999 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:50 on Thu 28 Mar to 15:52 on Fri 29 Mar.", "fact": "1991-03-28T08:49:57Z → 1991-03-29T07:52:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 on the 28th, 12:34–13:22 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9029 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Zunyi, 1991: Friday 29 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vishnu-damanaka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Madanabhanji, (Bengal & Orissa) (paraviddha), Sivadamanaka caturdasi, Visnudamanaka caturdasi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-29", "confidence": "determinate" } ], "quote": "In Zunyi, Viṣṇudamanaka Caturdaśī 1991 falls on Friday 29 March. Caturdaśī runs from 16:50 on Thu 28 Mar to 15:52 on Fri 29 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6966, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-03-29T15:52:04+08:00", "utc": "1991-03-29T07:52:04Z", "ms": 670233123789.83 }, "end": { "local": "1991-03-30T15:17:23+08:00", "utc": "1991-03-30T07:17:23Z", "ms": 670317442627.6941 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1991-03-29T15:52:04+08:00", "utc": "1991-03-29T07:52:04Z", "ms": 670233123789.83 }, "end": { "local": "1991-03-30T15:17:23+08:00", "utc": "1991-03-30T07:17:23Z", "ms": 670317442627.6941 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-03-29", "window": { "start": { "local": "1991-03-29T12:33:35+08:00", "utc": "1991-03-29T04:33:35Z", "ms": 670221214613.5999 }, "end": { "local": "1991-03-29T13:21:35+08:00", "utc": "1991-03-29T05:21:35Z", "ms": 670224094613.5999 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-03-30", "window": { "start": { "local": "1991-03-30T12:33:16+08:00", "utc": "1991-03-30T04:33:16Z", "ms": 670307596417.4304 }, "end": { "local": "1991-03-30T13:21:16+08:00", "utc": "1991-03-30T05:21:16Z", "ms": 670310476417.4304 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:52 on Fri 29 Mar to 15:17 on Sat 30 Mar.", "fact": "1991-03-29T07:52:04Z → 1991-03-30T07:17:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 on the 29th, 12:33–13:21 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 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: paraviddha → only-day · margin 6966 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Zunyi, 1991: Saturday 30 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chaitri-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Caitri purnima (paraviddha), Hanumat jayanti, Oli ending (Jain)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-03-30", "confidence": "determinate" } ], "quote": "In Zunyi, Caitrī Pūrṇimā 1991 falls on Saturday 30 March. Pūrṇimā runs from 15:52 on Fri 29 Mar to 15:17 on Sat 30 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-04-02", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-04-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17451, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-04-02T16:39:39+08:00", "utc": "1991-04-02T08:39:39Z", "ms": 670581578999.651 }, "end": { "local": "1991-04-03T18:16:42+08:00", "utc": "1991-04-03T10:16:42Z", "ms": 670673802448.8336 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-04-02T16:39:39+08:00", "utc": "1991-04-02T08:39:39Z", "ms": 670581578999.651 }, "end": { "local": "1991-04-03T18:16:42+08:00", "utc": "1991-04-03T10:16:42Z", "ms": 670673802448.8336 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-04-02", "window": { "start": { "local": "1991-04-02T22:11:23+08:00", "utc": "1991-04-02T14:11:23Z", "ms": 670601483484.7675 }, "end": { "local": "1991-04-02T22:11:23+08:00", "utc": "1991-04-02T14:11:23Z", "ms": 670601483484.7675 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-04-03", "window": { "start": { "local": "1991-04-03T23:07:33+08:00", "utc": "1991-04-03T15:07:33Z", "ms": 670691253093.28 }, "end": { "local": "1991-04-03T23:07:33+08:00", "utc": "1991-04-03T15:07:33Z", "ms": 670691253093.28 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:40 on Tue 2 Apr to 18:17 on Wed 3 Apr.", "fact": "1991-04-02T08:39:39Z → 1991-04-03T10:16:42Z" }, { "step": "kaala", "text": "Moonrise is at 22:11 on the 2nd and 23:08 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 17451 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Tuesday 2 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": "1991-04-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-04-02", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Tuesday 2 April. Caturthī runs from 16:40 on Tue 2 Apr to 18:17 on Wed 3 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-04-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/ekadashi?on=1991-04-11", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-04-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3323, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-04-10T07:29:35+08:00", "utc": "1991-04-09T23:29:35Z", "ms": 671239774532.1893 }, "end": { "local": "1991-04-11T08:12:21+08:00", "utc": "1991-04-11T00:12:21Z", "ms": 671328741497.0726 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-04-10T07:29:35+08:00", "utc": "1991-04-09T23:29:35Z", "ms": 671239774532.1893 }, "end": { "local": "1991-04-11T08:12:21+08:00", "utc": "1991-04-11T00:12:21Z", "ms": 671328741497.0726 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-04-10", "window": { "start": { "local": "1991-04-10T06:34:11+08:00", "utc": "1991-04-09T22:34:11Z", "ms": 671236451318.7234 }, "end": { "local": "1991-04-10T06:34:11+08:00", "utc": "1991-04-09T22:34:11Z", "ms": 671236451318.7234 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-04-11", "window": { "start": { "local": "1991-04-11T06:33:07+08:00", "utc": "1991-04-10T22:33:07Z", "ms": 671322787257.11 }, "end": { "local": "1991-04-11T06:33:07+08:00", "utc": "1991-04-10T22:33:07Z", "ms": 671322787257.11 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:30 on Wed 10 Apr to 08:12 on Thu 11 Apr.", "fact": "1991-04-09T23:29:35Z → 1991-04-11T00:12:21Z" }, { "step": "kaala", "text": "Sunrise is at 06:34 on the 10th and 06:33 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 10th and is on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3323 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Zunyi, 1991: Thursday 11 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-04-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-04-11", "confidence": "determinate" } ], "quote": "In Zunyi, Varūthinī Ekādaśī 1991 falls on Thursday 11 April. Ekādaśī runs from 07:30 on Wed 10 Apr to 08:12 on Thu 11 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-04-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-04-12", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-04-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37827, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-04-12T08:07:08+08:00", "utc": "1991-04-12T00:07:08Z", "ms": 671414828146.7815 }, "end": { "local": "1991-04-13T07:15:37+08:00", "utc": "1991-04-12T23:15:37Z", "ms": 671498137056.0181 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-04-12T08:07:08+08:00", "utc": "1991-04-12T00:07:08Z", "ms": 671414828146.7815 }, "end": { "local": "1991-04-13T07:15:37+08:00", "utc": "1991-04-12T23:15:37Z", "ms": 671498137056.0181 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-04-11", "window": { "start": { "local": "1991-04-11T19:14:30+08:00", "utc": "1991-04-11T11:14:30Z", "ms": 671368469999.1799 }, "end": { "local": "1991-04-11T20:44:50+08:00", "utc": "1991-04-11T12:44:50Z", "ms": 671373890487.6173 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "1991-04-12", "window": { "start": { "local": "1991-04-12T19:15:02+08:00", "utc": "1991-04-12T11:15:02Z", "ms": 671454901908.7859 }, "end": { "local": "1991-04-12T20:45:10+08:00", "utc": "1991-04-12T12:45:10Z", "ms": 671460309728.8745 } }, "covered_min": 90, "window_min": 90, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:07 on Fri 12 Apr to 07:16 on Sat 13 Apr.", "fact": "1991-04-12T00:07:08Z → 1991-04-12T23:15:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:14–20:45 on the 11th, 19:15–20:45 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 90 minutes on the 11th and 90 of 90 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 37827 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Friday 12 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-04-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-04-12", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Friday 12 April. Trayodaśī runs from 08:07 on Fri 12 Apr to 07:16 on Sat 13 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-04-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shivaratri?on=1991-04-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15985, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-04-13T07:15:37+08:00", "utc": "1991-04-12T23:15:37Z", "ms": 671498137056.0181 }, "end": { "local": "1991-04-14T06:43:11+09:00", "utc": "1991-04-13T21:43:11Z", "ms": 671578990738.5791 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-04-13T07:15:37+08:00", "utc": "1991-04-12T23:15:37Z", "ms": 671498137056.0181 }, "end": { "local": "1991-04-14T06:43:11+09:00", "utc": "1991-04-13T21:43:11Z", "ms": 671578990738.5791 } }, "kaala": "nishita", "days": [ { "local_date": "1991-04-12", "window": { "start": { "local": "1991-04-13T00:29:01+08:00", "utc": "1991-04-12T16:29:01Z", "ms": 671473741234.1182 }, "end": { "local": "1991-04-13T01:17:01+08:00", "utc": "1991-04-12T17:17:01Z", "ms": 671476621234.1182 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-04-13", "window": { "start": { "local": "1991-04-14T00:28:46+08:00", "utc": "1991-04-13T16:28:46Z", "ms": 671560125953.9724 }, "end": { "local": "1991-04-14T01:16:46+08:00", "utc": "1991-04-13T17:16:46Z", "ms": 671563005953.9724 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:16 on Sat 13 Apr to 06:43 on Sun 14 Apr.", "fact": "1991-04-12T23:15:37Z → 1991-04-13T21:43:11Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:29–01:17 on the 12th, 00:29–01:17 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 15985 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Saturday 13 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": "1991-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-04-13", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Saturday 13 April. Caturdaśī runs from 07:16 on Sat 13 Apr to 06:43 on Sun 14 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-04-13", "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/1991/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21842, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1991-04-14T13:34:00+09:00", "utc": "1991-04-14T04:34:00Z", "ms": 671603639563.6759 }, "end": { "local": "1991-05-15T10:25:32+09:00", "utc": "1991-05-15T01:25:32Z", "ms": 674270731527.4243 } }, "span": { "of": "transit", "start": { "local": "1991-04-14T13:34:00+09:00", "utc": "1991-04-14T04:34:00Z", "ms": 671603639563.6759 }, "end": { "local": "1991-04-14T13:34:00+09:00", "utc": "1991-04-14T04:34:00Z", "ms": 671603639563.6759 } }, "kaala": "day", "days": [ { "local_date": "1991-04-13", "window": { "start": { "local": "1991-04-13T06:31:01+08:00", "utc": "1991-04-12T22:31:01Z", "ms": 671495460559.4503 }, "end": { "local": "1991-04-14T07:29:58+09:00", "utc": "1991-04-13T22:29:58Z", "ms": 671581797971.8181 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "1991-04-14", "window": { "start": { "local": "1991-04-14T07:29:58+09:00", "utc": "1991-04-13T22:29:58Z", "ms": 671581797971.8181 }, "end": { "local": "1991-04-15T07:28:56+09:00", "utc": "1991-04-14T22:28:56Z", "ms": 671668135922.3494 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 13:34 on Sun 14 Apr.", "fact": "1991-04-14T04:34:00Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:31 on the 13th, and from 07:30 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 14th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 21842 s" }, { "step": "ruling", "text": "Vaiśākhī, Zunyi, 1991: Sunday 14 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-04-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1991-04-14", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1991-04-14", "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 1991 falls on Sunday 14 April. The Sun enters Meṣa at 13:34 on Sun 14 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vinayaka-chaturthi?on=1991-04-18", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-04-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12573, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-04-17T20:33:26+09:00", "utc": "1991-04-17T11:33:26Z", "ms": 671888005985.1162 }, "end": { "local": "1991-04-18T17:45:38+09:00", "utc": "1991-04-18T08:45:38Z", "ms": 671964337955.6874 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": true, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-04-17T20:33:26+09:00", "utc": "1991-04-17T11:33:26Z", "ms": 671888005985.1162 }, "end": { "local": "1991-04-18T17:45:38+09:00", "utc": "1991-04-18T08:45:38Z", "ms": 671964337955.6874 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-04-17", "window": { "start": { "local": "1991-04-17T13:28:18+09:00", "utc": "1991-04-17T04:28:18Z", "ms": 671862498389.4895 }, "end": { "local": "1991-04-17T14:16:18+09:00", "utc": "1991-04-17T05:16:18Z", "ms": 671865378389.4895 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-04-18", "window": { "start": { "local": "1991-04-18T13:28:05+09:00", "utc": "1991-04-18T04:28:05Z", "ms": 671948884552.0527 }, "end": { "local": "1991-04-18T14:16:05+09:00", "utc": "1991-04-18T05:16:05Z", "ms": 671951764552.0527 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:33 on Wed 17 Apr to 17:46 on Thu 18 Apr.", "fact": "1991-04-17T11:33:26Z → 1991-04-18T08:45:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:28–14:16 on the 17th, 13:28–14:16 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12573 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1991: Thursday 18 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-04-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-04-18", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1991 falls on Thursday 18 April. Caturthī runs from 20:33 on Wed 17 Apr to 17:46 on Thu 18 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-04-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/ekadashi?on=1991-04-24", "festival": "ekadashi", "name": "Śukla Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-04-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4078, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-04-24T06:12:07+09:00", "utc": "1991-04-23T21:12:07Z", "ms": 672441127398.7612 }, "end": { "local": "1991-04-25T05:24:51+09:00", "utc": "1991-04-24T20:24:51Z", "ms": 672524690587.7318 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": true, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-04-24T06:12:07+09:00", "utc": "1991-04-23T21:12:07Z", "ms": 672441127398.7612 }, "end": { "local": "1991-04-25T05:24:51+09:00", "utc": "1991-04-24T20:24:51Z", "ms": 672524690587.7318 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-04-24", "window": { "start": { "local": "1991-04-24T07:20:05+09:00", "utc": "1991-04-23T22:20:05Z", "ms": 672445205321.6761 }, "end": { "local": "1991-04-24T07:20:05+09:00", "utc": "1991-04-23T22:20:05Z", "ms": 672445205321.6761 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-04-25", "window": { "start": { "local": "1991-04-25T07:19:10+09:00", "utc": "1991-04-24T22:19:10Z", "ms": 672531549885.3474 }, "end": { "local": "1991-04-25T07:19:10+09:00", "utc": "1991-04-24T22:19:10Z", "ms": 672531549885.3474 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:12 on Wed 24 Apr to 05:25 on Thu 25 Apr.", "fact": "1991-04-23T21:12:07Z → 1991-04-24T20:24:51Z" }, { "step": "kaala", "text": "Sunrise is at 07:20 on the 24th and 07:19 on the 25th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 24th and is not on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4078 s" }, { "step": "ruling", "text": "Śukla Ekādaśī, Zunyi, 1991: Wednesday 24 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-04-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-04-24", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Ekādaśī 1991 falls on Wednesday 24 April. Ekādaśī runs from 06:12 on Wed 24 Apr to 05:25 on Thu 25 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-04-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-04-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-04-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25426, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-04-26T04:58:18+09:00", "utc": "1991-04-25T19:58:18Z", "ms": 672609497750.7991 }, "end": { "local": "1991-04-27T04:53:44+09:00", "utc": "1991-04-26T19:53:44Z", "ms": 672695624063.4888 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": true, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-04-26T04:58:18+09:00", "utc": "1991-04-25T19:58:18Z", "ms": 672609497750.7991 }, "end": { "local": "1991-04-27T04:53:44+09:00", "utc": "1991-04-26T19:53:44Z", "ms": 672695624063.4888 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-04-25", "window": { "start": { "local": "1991-04-25T20:22:08+09:00", "utc": "1991-04-25T11:22:08Z", "ms": 672578527590.837 }, "end": { "local": "1991-04-25T21:49:37+09:00", "utc": "1991-04-25T12:49:37Z", "ms": 672583776611.2659 } }, "covered_min": 0, "window_min": 87, "qualifies": false }, { "local_date": "1991-04-26", "window": { "start": { "local": "1991-04-26T20:22:41+09:00", "utc": "1991-04-26T11:22:41Z", "ms": 672664961177.1776 }, "end": { "local": "1991-04-26T21:49:59+09:00", "utc": "1991-04-26T12:49:59Z", "ms": 672670198543.3679 } }, "covered_min": 87, "window_min": 87, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:58 on Fri 26 Apr to 04:54 on Sat 27 Apr.", "fact": "1991-04-25T19:58:18Z → 1991-04-26T19:53:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:22–21:50 on the 25th, 20:23–21:50 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 87 minutes on the 25th and 87 of 87 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25426 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Friday 26 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-04-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-04-26", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Friday 26 April. Trayodaśī runs from 04:58 on Fri 26 Apr to 04:54 on Sat 27 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-04-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/sankashta-chaturthi?on=1991-05-02", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39949, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-05-02T10:59:12+09:00", "utc": "1991-05-02T01:59:12Z", "ms": 673149552440.2855 }, "end": { "local": "1991-05-03T13:25:20+09:00", "utc": "1991-05-03T04:25:20Z", "ms": 673244719652.3151 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": true, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-02T10:59:12+09:00", "utc": "1991-05-02T01:59:12Z", "ms": 673149552440.2855 }, "end": { "local": "1991-05-03T13:25:20+09:00", "utc": "1991-05-03T04:25:20Z", "ms": 673244719652.3151 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-05-02", "window": { "start": { "local": "1991-05-02T23:43:49+09:00", "utc": "1991-05-02T14:43:49Z", "ms": 673195429298.1774 }, "end": { "local": "1991-05-02T23:43:49+09:00", "utc": "1991-05-02T14:43:49Z", "ms": 673195429298.1774 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-05-03", "window": { "start": { "local": "1991-05-04T00:31:09+09:00", "utc": "1991-05-03T15:31:09Z", "ms": 673284668824.6531 }, "end": { "local": "1991-05-04T00:31:09+09:00", "utc": "1991-05-03T15:31:09Z", "ms": 673284668824.6531 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:59 on Thu 2 May to 13:25 on Fri 3 May.", "fact": "1991-05-02T01:59:12Z → 1991-05-03T04:25:20Z" }, { "step": "kaala", "text": "Moonrise is at 23:44 on the 2nd and 00:31 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 39949 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Thursday 2 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": "1991-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-02", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Thursday 2 May. Caturthī runs from 10:59 on Thu 2 May to 13:25 on Fri 3 May and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-05-02", "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/1991/ekadashi?on=1991-05-10", "festival": "ekadashi", "name": "Kṛṣṇa Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26487, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-05-09T23:45:41+09:00", "utc": "1991-05-09T14:45:41Z", "ms": 673800340537.5907 }, "end": { "local": "1991-05-10T23:06:03+09:00", "utc": "1991-05-10T14:06:03Z", "ms": 673884362899.5264 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": true, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-09T23:45:41+09:00", "utc": "1991-05-09T14:45:41Z", "ms": 673800340537.5907 }, "end": { "local": "1991-05-10T23:06:03+09:00", "utc": "1991-05-10T14:06:03Z", "ms": 673884362899.5264 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-05-10", "window": { "start": { "local": "1991-05-10T07:07:08+09:00", "utc": "1991-05-09T22:07:08Z", "ms": 673826827811.8939 }, "end": { "local": "1991-05-10T07:07:08+09:00", "utc": "1991-05-09T22:07:08Z", "ms": 673826827811.8939 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-05-11", "window": { "start": { "local": "1991-05-11T07:06:28+09:00", "utc": "1991-05-10T22:06:28Z", "ms": 673913188033.4829 }, "end": { "local": "1991-05-11T07:06:28+09:00", "utc": "1991-05-10T22:06:28Z", "ms": 673913188033.4829 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:46 on Thu 9 May to 23:06 on Fri 10 May.", "fact": "1991-05-09T14:45:41Z → 1991-05-10T14:06:03Z" }, { "step": "kaala", "text": "Sunrise is at 07:07 on the 10th and 07:06 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 26487 s" }, { "step": "ruling", "text": "Kṛṣṇa Ekādaśī, Zunyi, 1991: Friday 10 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-10", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Ekādaśī 1991 falls on Friday 10 May. Ekādaśī runs from 23:46 on Thu 9 May to 23:06 on Fri 10 May and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-05-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-05-11", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1074, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-05-11T21:38:01+09:00", "utc": "1991-05-11T12:38:01Z", "ms": 673965481127.1685 }, "end": { "local": "1991-05-12T19:27:46+09:00", "utc": "1991-05-12T10:27:46Z", "ms": 674044066087.8542 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": true, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-11T21:38:01+09:00", "utc": "1991-05-11T12:38:01Z", "ms": 673965481127.1685 }, "end": { "local": "1991-05-12T19:27:46+09:00", "utc": "1991-05-12T10:27:46Z", "ms": 674044066087.8542 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-05-11", "window": { "start": { "local": "1991-05-11T20:31:19+09:00", "utc": "1991-05-11T11:31:19Z", "ms": 673961478714.3644 }, "end": { "local": "1991-05-11T21:55:55+09:00", "utc": "1991-05-11T12:55:55Z", "ms": 673966554807.5615 } }, "covered_min": 18, "window_min": 85, "qualifies": true }, { "local_date": "1991-05-12", "window": { "start": { "local": "1991-05-12T20:31:54+09:00", "utc": "1991-05-12T11:31:54Z", "ms": 674047913775.1002 }, "end": { "local": "1991-05-12T21:56:20+09:00", "utc": "1991-05-12T12:56:20Z", "ms": 674052980200.5004 } }, "covered_min": 0, "window_min": 84, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:38 on Sat 11 May to 19:28 on Sun 12 May.", "fact": "1991-05-11T12:38:01Z → 1991-05-12T10:27:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:31–21:56 on the 11th, 20:32–21:56 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 18 of 85 minutes on the 11th and 0 of 84 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 1074 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Saturday 11 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-11", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Saturday 11 May. Trayodaśī runs from 21:38 on Sat 11 May to 19:28 on Sun 12 May and covers 18 of 85 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-05-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shivaratri?on=1991-05-12", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21407, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-05-12T19:27:46+09:00", "utc": "1991-05-12T10:27:46Z", "ms": 674044066087.8542 }, "end": { "local": "1991-05-13T16:43:47+09:00", "utc": "1991-05-13T07:43:47Z", "ms": 674120626807.1963 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": true, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-12T19:27:46+09:00", "utc": "1991-05-12T10:27:46Z", "ms": 674044066087.8542 }, "end": { "local": "1991-05-13T16:43:47+09:00", "utc": "1991-05-13T07:43:47Z", "ms": 674120626807.1963 } }, "kaala": "nishita", "days": [ { "local_date": "1991-05-12", "window": { "start": { "local": "1991-05-13T01:24:33+09:00", "utc": "1991-05-12T16:24:33Z", "ms": 674065472870.351 }, "end": { "local": "1991-05-13T02:12:33+09:00", "utc": "1991-05-12T17:12:33Z", "ms": 674068352870.351 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-05-13", "window": { "start": { "local": "1991-05-14T01:24:32+09:00", "utc": "1991-05-13T16:24:32Z", "ms": 674151872262.013 }, "end": { "local": "1991-05-14T02:12:32+09:00", "utc": "1991-05-13T17:12:32Z", "ms": 674154752262.013 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:28 on Sun 12 May to 16:44 on Mon 13 May.", "fact": "1991-05-12T10:27:46Z → 1991-05-13T07:43:47Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 01:25–02:13 on the 12th, 01:25–02:13 on the 13th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21407 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Sunday 12 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-12", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Sunday 12 May. Caturdaśī runs from 19:28 on Sun 12 May to 16:44 on Mon 13 May and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-05-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 895, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1991-05-16T06:48:32+09:00", "utc": "1991-05-15T21:48:32Z", "ms": 674344111673.1013 }, "end": { "local": "1991-05-17T03:28:36+09:00", "utc": "1991-05-16T18:28:36Z", "ms": 674418515738.7312 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-16T06:48:32+09:00", "utc": "1991-05-15T21:48:32Z", "ms": 674344111673.1013 }, "end": { "local": "1991-05-17T03:28:36+09:00", "utc": "1991-05-16T18:28:36Z", "ms": 674418515738.7312 } }, "kaala": "purvahna", "days": [ { "local_date": "1991-05-16", "window": { "start": { "local": "1991-05-16T07:03:27+09:00", "utc": "1991-05-15T22:03:27Z", "ms": 674345006771.0771 }, "end": { "local": "1991-05-16T11:33:42+09:00", "utc": "1991-05-16T02:33:42Z", "ms": 674361222393.0116 } }, "covered_min": 270, "window_min": 270, "qualifies": true }, { "local_date": "1991-05-17", "window": { "start": { "local": "1991-05-17T07:02:54+09:00", "utc": "1991-05-16T22:02:54Z", "ms": 674431374120.981 }, "end": { "local": "1991-05-17T11:33:32+09:00", "utc": "1991-05-17T02:33:32Z", "ms": 674447612207.7126 } }, "covered_min": 0, "window_min": 271, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:49 on Thu 16 May to 03:29 on Fri 17 May.", "fact": "1991-05-15T21:48:32Z → 1991-05-16T18:28:36Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:03–11:34 on the 16th, 07:03–11:34 on the 17th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 270 of 270 minutes on the 16th and 0 of 271 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 895 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Zunyi, 1991: Thursday 16 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.", "kaala": "purvahna", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-16", "confidence": "determinate" } ], "quote": "In Zunyi, Akṣaya Tṛtīyā 1991 falls on Thursday 16 May. Tṛtīyā runs from 06:49 on Thu 16 May to 03:29 on Fri 17 May and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19833, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1991-05-16T06:48:32+09:00", "utc": "1991-05-15T21:48:32Z", "ms": 674344111673.1013 }, "end": { "local": "1991-05-17T03:28:36+09:00", "utc": "1991-05-16T18:28:36Z", "ms": 674418515738.7312 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-16T06:48:32+09:00", "utc": "1991-05-15T21:48:32Z", "ms": 674344111673.1013 }, "end": { "local": "1991-05-17T03:28:36+09:00", "utc": "1991-05-16T18:28:36Z", "ms": 674418515738.7312 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-05-15", "window": { "start": { "local": "1991-05-15T20:33:39+09:00", "utc": "1991-05-15T11:33:39Z", "ms": 674307218777.8463 }, "end": { "local": "1991-05-15T21:57:37+09:00", "utc": "1991-05-15T12:57:37Z", "ms": 674312257176.9437 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "1991-05-16", "window": { "start": { "local": "1991-05-16T20:34:14+09:00", "utc": "1991-05-16T11:34:14Z", "ms": 674393653636.8805 }, "end": { "local": "1991-05-16T21:58:03+09:00", "utc": "1991-05-16T12:58:03Z", "ms": 674398683034.7605 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:49 on Thu 16 May to 03:29 on Fri 17 May.", "fact": "1991-05-15T21:48:32Z → 1991-05-16T18:28:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:34–21:58 on the 15th, 20:34–21:58 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 0 of 84 minutes on the 15th and 84 of 84 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19833 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Zunyi, 1991: Thursday 16 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-16", "confidence": "determinate" } ], "quote": "In Zunyi, Paraśurāma Jayantī 1991 falls on Thursday 16 May. Tṛtīyā runs from 06:49 on Thu 16 May to 03:29 on Fri 17 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vinayaka-chaturthi?on=1991-05-17", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35776, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-05-17T03:28:36+09:00", "utc": "1991-05-16T18:28:36Z", "ms": 674418515738.7312 }, "end": { "local": "1991-05-18T00:22:34+09:00", "utc": "1991-05-17T15:22:34Z", "ms": 674493753525.5419 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-17T03:28:36+09:00", "utc": "1991-05-16T18:28:36Z", "ms": 674418515738.7312 }, "end": { "local": "1991-05-18T00:22:34+09:00", "utc": "1991-05-17T15:22:34Z", "ms": 674493753525.5419 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-05-17", "window": { "start": { "local": "1991-05-17T13:24:51+09:00", "utc": "1991-05-17T04:24:51Z", "ms": 674454291251.0784 }, "end": { "local": "1991-05-17T14:12:51+09:00", "utc": "1991-05-17T05:12:51Z", "ms": 674457171251.0784 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-05-18", "window": { "start": { "local": "1991-05-18T13:24:53+09:00", "utc": "1991-05-18T04:24:53Z", "ms": 674540692838.6533 }, "end": { "local": "1991-05-18T14:12:53+09:00", "utc": "1991-05-18T05:12:53Z", "ms": 674543572838.6533 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:29 on Fri 17 May to 00:23 on Sat 18 May.", "fact": "1991-05-16T18:28:36Z → 1991-05-17T15:22:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:25–14:13 on the 17th, 13:25–14:13 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35776 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1991: Friday 17 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-17", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1991 falls on Friday 17 May. Caturthī runs from 03:29 on Fri 17 May to 00:23 on Sat 18 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-05-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26668, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1991-05-18T00:22:34+09:00", "utc": "1991-05-17T15:22:34Z", "ms": 674493753525.5419 }, "end": { "local": "1991-05-18T21:37:21+09:00", "utc": "1991-05-18T12:37:21Z", "ms": 674570240634.3727 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-18T00:22:34+09:00", "utc": "1991-05-17T15:22:34Z", "ms": 674493753525.5419 }, "end": { "local": "1991-05-18T21:37:21+09:00", "utc": "1991-05-18T12:37:21Z", "ms": 674570240634.3727 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-05-17", "window": { "start": { "local": "1991-05-17T13:24:51+09:00", "utc": "1991-05-17T04:24:51Z", "ms": 674454291251.0784 }, "end": { "local": "1991-05-17T14:12:51+09:00", "utc": "1991-05-17T05:12:51Z", "ms": 674457171251.0784 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-05-18", "window": { "start": { "local": "1991-05-18T13:24:53+09:00", "utc": "1991-05-18T04:24:53Z", "ms": 674540692838.6533 }, "end": { "local": "1991-05-18T14:12:53+09:00", "utc": "1991-05-18T05:12:53Z", "ms": 674543572838.6533 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 00:23 on Sat 18 May to 21:37 on Sat 18 May.", "fact": "1991-05-17T15:22:34Z → 1991-05-18T12:37:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:25–14:13 on the 17th, 13:25–14:13 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26668 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Zunyi, 1991: Saturday 18 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-18", "confidence": "determinate" } ], "quote": "In Zunyi, Śaṅkara Jayantī 1991 falls on Saturday 18 May. Pañcamī runs from 00:23 on Sat 18 May to 21:37 on Sat 18 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11750, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1991-05-19T19:18:15+09:00", "utc": "1991-05-19T10:18:15Z", "ms": 674648294884.0789 }, "end": { "local": "1991-05-20T17:28:48+09:00", "utc": "1991-05-20T08:28:48Z", "ms": 674728127969.154 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-19T19:18:15+09:00", "utc": "1991-05-19T10:18:15Z", "ms": 674648294884.0789 }, "end": { "local": "1991-05-20T17:28:48+09:00", "utc": "1991-05-20T08:28:48Z", "ms": 674728127969.154 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-05-19", "window": { "start": { "local": "1991-05-19T13:24:55+09:00", "utc": "1991-05-19T04:24:55Z", "ms": 674627094958.4065 }, "end": { "local": "1991-05-19T14:12:55+09:00", "utc": "1991-05-19T05:12:55Z", "ms": 674629974958.4065 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-05-20", "window": { "start": { "local": "1991-05-20T13:24:58+09:00", "utc": "1991-05-20T04:24:58Z", "ms": 674713497602.7329 }, "end": { "local": "1991-05-20T14:12:58+09:00", "utc": "1991-05-20T05:12:58Z", "ms": 674716377602.7329 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 19:18 on Sun 19 May to 17:29 on Mon 20 May.", "fact": "1991-05-19T10:18:15Z → 1991-05-20T08:28:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:25–14:13 on the 19th, 13:25–14:13 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11750 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Zunyi, 1991: Monday 20 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-20", "confidence": "determinate" } ], "quote": "In Zunyi, Gaṅgotpatti (Ganga Saptami) 1991 falls on Monday 20 May. Saptamī runs from 19:18 on Sun 19 May to 17:29 on Mon 20 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-05-24", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29333, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-05-23T15:08:58+09:00", "utc": "1991-05-23T06:08:58Z", "ms": 674978937576.548 }, "end": { "local": "1991-05-24T15:22:46+09:00", "utc": "1991-05-24T06:22:46Z", "ms": 675066166315.6964 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-23T15:08:58+09:00", "utc": "1991-05-23T06:08:58Z", "ms": 674978937576.548 }, "end": { "local": "1991-05-24T15:22:46+09:00", "utc": "1991-05-24T06:22:46Z", "ms": 675066166315.6964 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-05-23", "window": { "start": { "local": "1991-05-23T07:00:04+09:00", "utc": "1991-05-22T22:00:04Z", "ms": 674949604219.3364 }, "end": { "local": "1991-05-23T07:00:04+09:00", "utc": "1991-05-22T22:00:04Z", "ms": 674949604219.3364 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-05-24", "window": { "start": { "local": "1991-05-24T06:59:40+09:00", "utc": "1991-05-23T21:59:40Z", "ms": 675035980326.2543 }, "end": { "local": "1991-05-24T06:59:40+09:00", "utc": "1991-05-23T21:59:40Z", "ms": 675035980326.2543 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:09 on Thu 23 May to 15:23 on Fri 24 May.", "fact": "1991-05-23T06:08:58Z → 1991-05-24T06:22:46Z" }, { "step": "kaala", "text": "Sunrise is at 07:00 on the 23rd and 07:00 on the 24th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 23rd and is on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29333 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Zunyi, 1991: Friday 24 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-24", "confidence": "determinate" } ], "quote": "In Zunyi, Mohinī Ekādaśī 1991 falls on Friday 24 May. Ekādaśī runs from 15:09 on Thu 23 May to 15:23 on Fri 24 May and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-05-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4173, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1991-05-24T15:22:46+09:00", "utc": "1991-05-24T06:22:46Z", "ms": 675066166315.6964 }, "end": { "local": "1991-05-25T16:04:10+09:00", "utc": "1991-05-25T07:04:10Z", "ms": 675155050142.9863 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-24T15:22:46+09:00", "utc": "1991-05-24T06:22:46Z", "ms": 675066166315.6964 }, "end": { "local": "1991-05-25T16:04:10+09:00", "utc": "1991-05-25T07:04:10Z", "ms": 675155050142.9863 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-05-24", "window": { "start": { "local": "1991-05-24T13:25:13+09:00", "utc": "1991-05-24T04:25:13Z", "ms": 675059113290.1234 }, "end": { "local": "1991-05-24T14:13:13+09:00", "utc": "1991-05-24T05:13:13Z", "ms": 675061993290.1234 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-05-25", "window": { "start": { "local": "1991-05-25T13:25:18+09:00", "utc": "1991-05-25T04:25:18Z", "ms": 675145518456.5142 }, "end": { "local": "1991-05-25T14:13:18+09:00", "utc": "1991-05-25T05:13:18Z", "ms": 675148398456.5142 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 15:23 on Fri 24 May to 16:04 on Sat 25 May.", "fact": "1991-05-24T06:22:46Z → 1991-05-25T07:04:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:25–14:13 on the 24th, 13:25–14:13 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4173 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Zunyi, 1991: Saturday 25 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-25", "confidence": "determinate" } ], "quote": "In Zunyi, Paraśurāma Dvādaśī 1991 falls on Saturday 25 May. Dvādaśī runs from 15:23 on Fri 24 May to 16:04 on Sat 25 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4173, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1991-05-24T15:22:46+09:00", "utc": "1991-05-24T06:22:46Z", "ms": 675066166315.6964 }, "end": { "local": "1991-05-25T16:04:10+09:00", "utc": "1991-05-25T07:04:10Z", "ms": 675155050142.9863 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-24T15:22:46+09:00", "utc": "1991-05-24T06:22:46Z", "ms": 675066166315.6964 }, "end": { "local": "1991-05-25T16:04:10+09:00", "utc": "1991-05-25T07:04:10Z", "ms": 675155050142.9863 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-05-24", "window": { "start": { "local": "1991-05-24T13:25:13+09:00", "utc": "1991-05-24T04:25:13Z", "ms": 675059113290.1234 }, "end": { "local": "1991-05-24T14:13:13+09:00", "utc": "1991-05-24T05:13:13Z", "ms": 675061993290.1234 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-05-25", "window": { "start": { "local": "1991-05-25T13:25:18+09:00", "utc": "1991-05-25T04:25:18Z", "ms": 675145518456.5142 }, "end": { "local": "1991-05-25T14:13:18+09:00", "utc": "1991-05-25T05:13:18Z", "ms": 675148398456.5142 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 15:23 on Fri 24 May to 16:04 on Sat 25 May.", "fact": "1991-05-24T06:22:46Z → 1991-05-25T07:04:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:25–14:13 on the 24th, 13:25–14:13 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4173 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Zunyi, 1991: Saturday 25 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rukmini-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-25", "confidence": "determinate" } ], "quote": "In Zunyi, Rukmiṇī Dvādaśī 1991 falls on Saturday 25 May. Dvādaśī runs from 15:23 on Fri 24 May to 16:04 on Sat 25 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/pradosha-vrata?on=1991-05-25", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12504, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-05-25T16:04:10+09:00", "utc": "1991-05-25T07:04:10Z", "ms": 675155050142.9863 }, "end": { "local": "1991-05-26T17:11:27+09:00", "utc": "1991-05-26T08:11:27Z", "ms": 675245487476.9288 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-25T16:04:10+09:00", "utc": "1991-05-25T07:04:10Z", "ms": 675155050142.9863 }, "end": { "local": "1991-05-26T17:11:27+09:00", "utc": "1991-05-26T08:11:27Z", "ms": 675245487476.9288 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-05-25", "window": { "start": { "local": "1991-05-25T20:39:19+09:00", "utc": "1991-05-25T11:39:19Z", "ms": 675171559190.6381 }, "end": { "local": "1991-05-25T22:01:56+09:00", "utc": "1991-05-25T13:01:56Z", "ms": 675176516154.0581 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "1991-05-26", "window": { "start": { "local": "1991-05-26T20:39:52+09:00", "utc": "1991-05-26T11:39:52Z", "ms": 675257991797.2438 }, "end": { "local": "1991-05-26T22:02:22+09:00", "utc": "1991-05-26T13:02:22Z", "ms": 675262941746.3915 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:04 on Sat 25 May to 17:11 on Sun 26 May.", "fact": "1991-05-25T07:04:10Z → 1991-05-26T08:11:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:39–22:02 on the 25th, 20:40–22:02 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 83 of 83 minutes on the 25th and 0 of 82 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12504 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Saturday 25 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-25", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Saturday 25 May. Trayodaśī runs from 16:04 on Sat 25 May to 17:11 on Sun 26 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-05-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7048, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-05-26T17:11:27+09:00", "utc": "1991-05-26T08:11:27Z", "ms": 675245487476.9288 }, "end": { "local": "1991-05-27T18:42:56+09:00", "utc": "1991-05-27T09:42:56Z", "ms": 675337376430.8654 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-26T17:11:27+09:00", "utc": "1991-05-26T08:11:27Z", "ms": 675245487476.9288 }, "end": { "local": "1991-05-27T18:42:56+09:00", "utc": "1991-05-27T09:42:56Z", "ms": 675337376430.8654 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-05-26", "window": { "start": { "local": "1991-05-26T20:39:52+09:00", "utc": "1991-05-26T11:39:52Z", "ms": 675257991797.2438 }, "end": { "local": "1991-05-26T22:02:22+09:00", "utc": "1991-05-26T13:02:22Z", "ms": 675262941746.3915 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "1991-05-27", "window": { "start": { "local": "1991-05-27T20:40:24+09:00", "utc": "1991-05-27T11:40:24Z", "ms": 675344424050.3022 }, "end": { "local": "1991-05-27T22:02:47+09:00", "utc": "1991-05-27T13:02:47Z", "ms": 675349367207.363 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:11 on Sun 26 May to 18:43 on Mon 27 May.", "fact": "1991-05-26T08:11:27Z → 1991-05-27T09:42:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:40–22:02 on the 26th, 20:40–22:03 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 82 of 82 minutes on the 26th and 0 of 82 on the 27th.", "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 7048 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Zunyi, 1991: Sunday 26 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "nrisimha-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Nrsimha caturdasi (pradosa vyapini — if it occurs on two successive days, the second day is to be observed, special when combined with naksatra 'Svati', yoga 'Siddhi' and 'Saturday')." } ], "not_evaluated": "The row calls the day special with Svātī nakṣatra, Siddhi yoga and a Saturday; none is tested.", "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-05-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-26", "confidence": "determinate" } ], "quote": "In Zunyi, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1991 falls on Sunday 26 May. Caturdaśī runs from 17:11 on Sun 26 May to 18:43 on Mon 27 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16166, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-05-27T18:42:56+09:00", "utc": "1991-05-27T09:42:56Z", "ms": 675337376430.8654 }, "end": { "local": "1991-05-28T20:36:34+09:00", "utc": "1991-05-28T11:36:34Z", "ms": 675430594112.688 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-27T18:42:56+09:00", "utc": "1991-05-27T09:42:56Z", "ms": 675337376430.8654 }, "end": { "local": "1991-05-28T20:36:34+09:00", "utc": "1991-05-28T11:36:34Z", "ms": 675430594112.688 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-05-27", "window": { "start": { "local": "1991-05-27T13:25:30+09:00", "utc": "1991-05-27T04:25:30Z", "ms": 675318330233.0771 }, "end": { "local": "1991-05-27T14:13:30+09:00", "utc": "1991-05-27T05:13:30Z", "ms": 675321210233.0771 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-05-28", "window": { "start": { "local": "1991-05-28T13:25:37+09:00", "utc": "1991-05-28T04:25:37Z", "ms": 675404736826.9882 }, "end": { "local": "1991-05-28T14:13:37+09:00", "utc": "1991-05-28T05:13:37Z", "ms": 675407616826.9882 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:43 on Mon 27 May to 20:37 on Tue 28 May.", "fact": "1991-05-27T09:42:56Z → 1991-05-28T11:36:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:26–14:14 on the 27th, 13:26–14:14 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 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: unstated → only-day · margin 16166 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Zunyi, 1991: Tuesday 28 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": "1991-05-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-28", "confidence": "determinate" } ], "quote": "In Zunyi, Buddha Pūrṇimā 1991 falls on Tuesday 28 May. Pūrṇimā runs from 18:43 on Mon 27 May to 20:37 on Tue 28 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-05-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16166, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-05-27T18:42:56+09:00", "utc": "1991-05-27T09:42:56Z", "ms": 675337376430.8654 }, "end": { "local": "1991-05-28T20:36:34+09:00", "utc": "1991-05-28T11:36:34Z", "ms": 675430594112.688 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1991-05-27T18:42:56+09:00", "utc": "1991-05-27T09:42:56Z", "ms": 675337376430.8654 }, "end": { "local": "1991-05-28T20:36:34+09:00", "utc": "1991-05-28T11:36:34Z", "ms": 675430594112.688 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-05-27", "window": { "start": { "local": "1991-05-27T13:25:30+09:00", "utc": "1991-05-27T04:25:30Z", "ms": 675318330233.0771 }, "end": { "local": "1991-05-27T14:13:30+09:00", "utc": "1991-05-27T05:13:30Z", "ms": 675321210233.0771 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-05-28", "window": { "start": { "local": "1991-05-28T13:25:37+09:00", "utc": "1991-05-28T04:25:37Z", "ms": 675404736826.9882 }, "end": { "local": "1991-05-28T14:13:37+09:00", "utc": "1991-05-28T05:13:37Z", "ms": 675407616826.9882 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:43 on Mon 27 May to 20:37 on Tue 28 May.", "fact": "1991-05-27T09:42:56Z → 1991-05-28T11:36:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:26–14:14 on the 27th, 13:26–14:14 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 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 16166 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Zunyi, 1991: Tuesday 28 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": "1991-05-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-05-28", "confidence": "determinate" } ], "quote": "In Zunyi, Sampat Gaurī Vrata 1991 falls on Tuesday 28 May. Pūrṇimā runs from 18:43 on Mon 27 May to 20:37 on Tue 28 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-06-01", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16835, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-06-01T03:51:46+09:00", "utc": "1991-05-31T18:51:46Z", "ms": 675715905629.4965 }, "end": { "local": "1991-06-02T06:25:26+09:00", "utc": "1991-06-01T21:25:26Z", "ms": 675811525589.5715 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-01T03:51:46+09:00", "utc": "1991-05-31T18:51:46Z", "ms": 675715905629.4965 }, "end": { "local": "1991-06-02T06:25:26+09:00", "utc": "1991-06-01T21:25:26Z", "ms": 675811525589.5715 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-05-31", "window": { "start": { "local": "1991-05-31T23:11:11+09:00", "utc": "1991-05-31T14:11:11Z", "ms": 675699070808.3048 }, "end": { "local": "1991-05-31T23:11:11+09:00", "utc": "1991-05-31T14:11:11Z", "ms": 675699070808.3048 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-06-01", "window": { "start": { "local": "1991-06-01T23:51:05+09:00", "utc": "1991-06-01T14:51:05Z", "ms": 675787864921.6257 }, "end": { "local": "1991-06-01T23:51:05+09:00", "utc": "1991-06-01T14:51:05Z", "ms": 675787864921.6257 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:52 on Sat 1 Jun to 06:25 on Sun 2 Jun.", "fact": "1991-05-31T18:51:46Z → 1991-06-01T21:25:26Z" }, { "step": "kaala", "text": "Moonrise is at 23:11 on the 31st and 23:51 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 16835 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Saturday 1 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": "1991-06-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-01", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Saturday 1 June. Caturthī runs from 03:52 on Sat 1 Jun to 06:25 on Sun 2 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-06-01", "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/1991/ekadashi?on=1991-06-09", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10035, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-06-08T11:31:16+09:00", "utc": "1991-06-08T02:31:16Z", "ms": 676348276004.631 }, "end": { "local": "1991-06-09T09:43:32+09:00", "utc": "1991-06-09T00:43:32Z", "ms": 676428212124.141 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-08T11:31:16+09:00", "utc": "1991-06-08T02:31:16Z", "ms": 676348276004.631 }, "end": { "local": "1991-06-09T09:43:32+09:00", "utc": "1991-06-09T00:43:32Z", "ms": 676428212124.141 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-06-08", "window": { "start": { "local": "1991-06-08T06:56:20+09:00", "utc": "1991-06-07T21:56:20Z", "ms": 676331779865.5173 }, "end": { "local": "1991-06-08T06:56:20+09:00", "utc": "1991-06-07T21:56:20Z", "ms": 676331779865.5173 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-06-09", "window": { "start": { "local": "1991-06-09T06:56:17+09:00", "utc": "1991-06-08T21:56:17Z", "ms": 676418177101.755 }, "end": { "local": "1991-06-09T06:56:17+09:00", "utc": "1991-06-08T21:56:17Z", "ms": 676418177101.755 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:31 on Sat 8 Jun to 09:44 on Sun 9 Jun.", "fact": "1991-06-08T02:31:16Z → 1991-06-09T00:43:32Z" }, { "step": "kaala", "text": "Sunrise is at 06:56 on the 8th and 06:56 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 10035 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Zunyi, 1991: Sunday 9 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": "1991-06-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-09", "confidence": "determinate" } ], "quote": "In Zunyi, Aparā Ekādaśī 1991 falls on Sunday 9 June. Ekādaśī runs from 11:31 on Sat 8 Jun to 09:44 on Sun 9 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-06-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-06-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21848, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-06-10T07:14:36+09:00", "utc": "1991-06-09T22:14:36Z", "ms": 676505676461.6061 }, "end": { "local": "1991-06-11T04:12:25+09:00", "utc": "1991-06-10T19:12:25Z", "ms": 676581144924.8523 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-10T07:14:36+09:00", "utc": "1991-06-09T22:14:36Z", "ms": 676505676461.6061 }, "end": { "local": "1991-06-11T04:12:25+09:00", "utc": "1991-06-10T19:12:25Z", "ms": 676581144924.8523 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-06-09", "window": { "start": { "local": "1991-06-09T20:46:39+09:00", "utc": "1991-06-09T11:46:39Z", "ms": 676467999276.6923 }, "end": { "local": "1991-06-09T22:07:56+09:00", "utc": "1991-06-09T13:07:56Z", "ms": 676472876124.2926 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "1991-06-10", "window": { "start": { "local": "1991-06-10T20:47:04+09:00", "utc": "1991-06-10T11:47:04Z", "ms": 676554423744.4235 }, "end": { "local": "1991-06-10T22:08:17+09:00", "utc": "1991-06-10T13:08:17Z", "ms": 676559297304.6831 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:15 on Mon 10 Jun to 04:12 on Tue 11 Jun.", "fact": "1991-06-09T22:14:36Z → 1991-06-10T19:12:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:47–22:08 on the 9th, 20:47–22:08 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 81 minutes on the 9th and 81 of 81 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21848 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Monday 10 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-06-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-10", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Monday 10 June. Trayodaśī runs from 07:15 on Mon 10 Jun to 04:12 on Tue 11 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-06-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shivaratri?on=1991-06-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-10", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2499, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-06-11T04:12:25+09:00", "utc": "1991-06-10T19:12:25Z", "ms": 676581144924.8523 }, "end": { "local": "1991-06-12T00:46:13+09:00", "utc": "1991-06-11T15:46:13Z", "ms": 676655172869.8069 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-11T04:12:25+09:00", "utc": "1991-06-10T19:12:25Z", "ms": 676581144924.8523 }, "end": { "local": "1991-06-12T00:46:13+09:00", "utc": "1991-06-11T15:46:13Z", "ms": 676655172869.8069 } }, "kaala": "nishita", "days": [ { "local_date": "1991-06-10", "window": { "start": { "local": "1991-06-11T01:27:40+09:00", "utc": "1991-06-10T16:27:40Z", "ms": 676571259595.3972 }, "end": { "local": "1991-06-11T02:15:40+09:00", "utc": "1991-06-10T17:15:40Z", "ms": 676574139595.3972 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-06-11", "window": { "start": { "local": "1991-06-12T01:27:52+09:00", "utc": "1991-06-11T16:27:52Z", "ms": 676657671974.3086 }, "end": { "local": "1991-06-12T02:15:52+09:00", "utc": "1991-06-11T17:15:52Z", "ms": 676660551974.3086 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:12 on Tue 11 Jun to 00:46 on Wed 12 Jun.", "fact": "1991-06-10T19:12:25Z → 1991-06-11T15:46:13Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 01:28–02:16 on the 10th, 01:28–02:16 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 0 of 48 on the 11th.", "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 2499 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Monday 10 June.", "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": "1991-06-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-10", "confidence": "boundary" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Monday 10 June. Caturdaśī runs from 04:12 on Tue 11 Jun to 00:46 on Wed 12 Jun, and reaches niśītha on neither day.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-06-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 873, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1991-06-14T13:43:01+09:00", "utc": "1991-06-14T04:43:01Z", "ms": 676874580890.0947 }, "end": { "local": "1991-06-15T10:19:27+09:00", "utc": "1991-06-15T01:19:27Z", "ms": 676948767212.6901 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-14T13:43:01+09:00", "utc": "1991-06-14T04:43:01Z", "ms": 676874580890.0947 }, "end": { "local": "1991-06-15T10:19:27+09:00", "utc": "1991-06-15T01:19:27Z", "ms": 676948767212.6901 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-06-14", "window": { "start": { "local": "1991-06-14T13:28:28+09:00", "utc": "1991-06-14T04:28:28Z", "ms": 676873707893.5491 }, "end": { "local": "1991-06-14T14:16:28+09:00", "utc": "1991-06-14T05:16:28Z", "ms": 676876587893.5491 } }, "covered_min": 33, "window_min": 48, "qualifies": true }, { "local_date": "1991-06-15", "window": { "start": { "local": "1991-06-15T13:28:40+09:00", "utc": "1991-06-15T04:28:40Z", "ms": 676960120356.2634 }, "end": { "local": "1991-06-15T14:16:40+09:00", "utc": "1991-06-15T05:16:40Z", "ms": 676963000356.2634 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:43 on Fri 14 Jun to 10:19 on Sat 15 Jun.", "fact": "1991-06-14T04:43:01Z → 1991-06-15T01:19:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:28–14:16 on the 14th, 13:29–14:17 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 33 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 873 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Zunyi, 1991: Friday 14 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rambha-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Rambha trtiya (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-14", "confidence": "determinate" } ], "quote": "In Zunyi, Rambhā Tṛtīyā 1991 falls on Friday 14 June. Tṛtīyā runs from 13:43 on Fri 14 Jun to 10:19 on Sat 15 Jun and covers 33 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vinayaka-chaturthi?on=1991-06-15", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11353, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-06-15T10:19:27+09:00", "utc": "1991-06-15T01:19:27Z", "ms": 676948767212.6901 }, "end": { "local": "1991-06-16T07:19:14+09:00", "utc": "1991-06-15T22:19:14Z", "ms": 677024353705.407 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-15T10:19:27+09:00", "utc": "1991-06-15T01:19:27Z", "ms": 676948767212.6901 }, "end": { "local": "1991-06-16T07:19:14+09:00", "utc": "1991-06-15T22:19:14Z", "ms": 677024353705.407 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-06-15", "window": { "start": { "local": "1991-06-15T13:28:40+09:00", "utc": "1991-06-15T04:28:40Z", "ms": 676960120356.2634 }, "end": { "local": "1991-06-15T14:16:40+09:00", "utc": "1991-06-15T05:16:40Z", "ms": 676963000356.2634 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-06-16", "window": { "start": { "local": "1991-06-16T13:28:53+09:00", "utc": "1991-06-16T04:28:53Z", "ms": 677046532927.6838 }, "end": { "local": "1991-06-16T14:16:53+09:00", "utc": "1991-06-16T05:16:53Z", "ms": 677049412927.6838 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:19 on Sat 15 Jun to 07:19 on Sun 16 Jun.", "fact": "1991-06-15T01:19:27Z → 1991-06-15T22:19:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:29–14:17 on the 15th, 13:29–14:17 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11353 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1991: Saturday 15 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-06-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-15", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1991 falls on Saturday 15 June. Caturthī runs from 10:19 on Sat 15 Jun to 07:19 on Sun 16 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-06-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31180, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1991-06-17T04:49:26+09:00", "utc": "1991-06-16T19:49:26Z", "ms": 677101765948.1433 }, "end": { "local": "1991-06-18T02:55:34+09:00", "utc": "1991-06-17T17:55:34Z", "ms": 677181333828.9086 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-17T04:49:26+09:00", "utc": "1991-06-16T19:49:26Z", "ms": 677101765948.1433 }, "end": { "local": "1991-06-18T02:55:34+09:00", "utc": "1991-06-17T17:55:34Z", "ms": 677181333828.9086 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-06-17", "window": { "start": { "local": "1991-06-17T13:29:06+09:00", "utc": "1991-06-17T04:29:06Z", "ms": 677132945581.37 }, "end": { "local": "1991-06-17T14:17:06+09:00", "utc": "1991-06-17T05:17:06Z", "ms": 677135825581.37 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-06-18", "window": { "start": { "local": "1991-06-18T13:29:18+09:00", "utc": "1991-06-18T04:29:18Z", "ms": 677219358292.3618 }, "end": { "local": "1991-06-18T14:17:18+09:00", "utc": "1991-06-18T05:17:18Z", "ms": 677222238292.3618 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 04:49 on Mon 17 Jun to 02:56 on Tue 18 Jun.", "fact": "1991-06-16T19:49:26Z → 1991-06-17T17:55:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:29–14:17 on the 17th, 13:29–14:17 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31180 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Zunyi, 1991: Monday 17 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aranya-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-06-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-17", "confidence": "determinate" } ], "quote": "In Zunyi, Araṇya Gaurī Vrata 1991 falls on Monday 17 June. Ṣaṣṭhī runs from 04:49 on Mon 17 Jun to 02:56 on Tue 18 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31180, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1991-06-17T04:49:26+09:00", "utc": "1991-06-16T19:49:26Z", "ms": 677101765948.1433 }, "end": { "local": "1991-06-18T02:55:34+09:00", "utc": "1991-06-17T17:55:34Z", "ms": 677181333828.9086 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-17T04:49:26+09:00", "utc": "1991-06-16T19:49:26Z", "ms": 677101765948.1433 }, "end": { "local": "1991-06-18T02:55:34+09:00", "utc": "1991-06-17T17:55:34Z", "ms": 677181333828.9086 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-06-17", "window": { "start": { "local": "1991-06-17T13:29:06+09:00", "utc": "1991-06-17T04:29:06Z", "ms": 677132945581.37 }, "end": { "local": "1991-06-17T14:17:06+09:00", "utc": "1991-06-17T05:17:06Z", "ms": 677135825581.37 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-06-18", "window": { "start": { "local": "1991-06-18T13:29:18+09:00", "utc": "1991-06-18T04:29:18Z", "ms": 677219358292.3618 }, "end": { "local": "1991-06-18T14:17:18+09:00", "utc": "1991-06-18T05:17:18Z", "ms": 677222238292.3618 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 04:49 on Mon 17 Jun to 02:56 on Tue 18 Jun.", "fact": "1991-06-16T19:49:26Z → 1991-06-17T17:55:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:29–14:17 on the 17th, 13:29–14:17 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 31180 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Zunyi, 1991: Monday 17 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi-jyaishtha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-06-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-17", "confidence": "determinate" } ], "quote": "In Zunyi, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1991 falls on Monday 17 June. Ṣaṣṭhī runs from 04:49 on Mon 17 Jun to 02:56 on Tue 18 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-06-22", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13339, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-06-22T01:58:27+09:00", "utc": "1991-06-21T16:58:27Z", "ms": 677523506805.4559 }, "end": { "local": "1991-06-23T03:15:26+09:00", "utc": "1991-06-22T18:15:26Z", "ms": 677614526201.8562 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-22T01:58:27+09:00", "utc": "1991-06-21T16:58:27Z", "ms": 677523506805.4559 }, "end": { "local": "1991-06-23T03:15:26+09:00", "utc": "1991-06-22T18:15:26Z", "ms": 677614526201.8562 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-06-22", "window": { "start": { "local": "1991-06-22T06:57:32+09:00", "utc": "1991-06-21T21:57:32Z", "ms": 677541452048.87 }, "end": { "local": "1991-06-22T06:57:32+09:00", "utc": "1991-06-21T21:57:32Z", "ms": 677541452048.87 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-06-23", "window": { "start": { "local": "1991-06-23T06:57:46+09:00", "utc": "1991-06-22T21:57:46Z", "ms": 677627865602.5352 }, "end": { "local": "1991-06-23T06:57:46+09:00", "utc": "1991-06-22T21:57:46Z", "ms": 677627865602.5352 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:58 on Sat 22 Jun to 03:15 on Sun 23 Jun.", "fact": "1991-06-21T16:58:27Z → 1991-06-22T18:15:26Z" }, { "step": "kaala", "text": "Sunrise is at 06:58 on the 22nd and 06:58 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 13339 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Zunyi, 1991: Saturday 22 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-06-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-22", "confidence": "determinate" } ], "quote": "In Zunyi, Nirjalā Ekādaśī 1991 falls on Saturday 22 June. Ekādaśī runs from 01:58 on Sat 22 Jun to 03:15 on Sun 23 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-06-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30636, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1991-06-23T03:15:26+09:00", "utc": "1991-06-22T18:15:26Z", "ms": 677614526201.8562 }, "end": { "local": "1991-06-24T04:59:58+09:00", "utc": "1991-06-23T19:59:58Z", "ms": 677707198491.5098 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-23T03:15:26+09:00", "utc": "1991-06-22T18:15:26Z", "ms": 677614526201.8562 }, "end": { "local": "1991-06-24T04:59:58+09:00", "utc": "1991-06-23T19:59:58Z", "ms": 677707198491.5098 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-06-23", "window": { "start": { "local": "1991-06-23T13:30:22+09:00", "utc": "1991-06-23T04:30:22Z", "ms": 677651421904.6272 }, "end": { "local": "1991-06-23T14:18:22+09:00", "utc": "1991-06-23T05:18:22Z", "ms": 677654301904.6272 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-06-24", "window": { "start": { "local": "1991-06-24T13:30:34+09:00", "utc": "1991-06-24T04:30:34Z", "ms": 677737834487.4679 }, "end": { "local": "1991-06-24T14:18:34+09:00", "utc": "1991-06-24T05:18:34Z", "ms": 677740714487.4679 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:15 on Sun 23 Jun to 05:00 on Mon 24 Jun.", "fact": "1991-06-22T18:15:26Z → 1991-06-23T19:59:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:30–14:18 on the 23rd, 13:31–14:19 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 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 30636 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Zunyi, 1991: Sunday 23 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-rama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-06-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-23", "confidence": "determinate" } ], "quote": "In Zunyi, Śrī Rāma Dvādaśī 1991 falls on Sunday 23 June. Dvādaśī runs from 03:15 on Sun 23 Jun to 05:00 on Mon 24 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/pradosha-vrata?on=1991-06-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24484, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-06-24T04:59:58+09:00", "utc": "1991-06-23T19:59:58Z", "ms": 677707198491.5098 }, "end": { "local": "1991-06-25T07:06:06+09:00", "utc": "1991-06-24T22:06:06Z", "ms": 677801166435.8107 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-24T04:59:58+09:00", "utc": "1991-06-23T19:59:58Z", "ms": 677707198491.5098 }, "end": { "local": "1991-06-25T07:06:06+09:00", "utc": "1991-06-24T22:06:06Z", "ms": 677801166435.8107 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-06-23", "window": { "start": { "local": "1991-06-23T20:50:58+09:00", "utc": "1991-06-23T11:50:58Z", "ms": 677677858206.7191 }, "end": { "local": "1991-06-23T22:11:54+09:00", "utc": "1991-06-23T13:11:54Z", "ms": 677682714467.2031 } }, "covered_min": 0, "window_min": 81, "qualifies": false }, { "local_date": "1991-06-24", "window": { "start": { "local": "1991-06-24T20:51:09+09:00", "utc": "1991-06-24T11:51:09Z", "ms": 677764268814.5862 }, "end": { "local": "1991-06-24T22:12:06+09:00", "utc": "1991-06-24T13:12:06Z", "ms": 677769125732.6104 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:00 on Mon 24 Jun to 07:06 on Tue 25 Jun.", "fact": "1991-06-23T19:59:58Z → 1991-06-24T22:06:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:51–22:12 on the 23rd, 20:51–22:12 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 81 minutes on the 23rd and 81 of 81 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 24484 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Monday 24 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-06-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-24", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Monday 24 June. Trayodaśī runs from 05:00 on Mon 24 Jun to 07:06 on Tue 25 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-06-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31989, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-06-26T09:27:41+09:00", "utc": "1991-06-26T00:27:41Z", "ms": 677896060650.2498 }, "end": { "local": "1991-06-27T11:58:25+09:00", "utc": "1991-06-27T02:58:25Z", "ms": 677991505024.2875 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-26T09:27:41+09:00", "utc": "1991-06-26T00:27:41Z", "ms": 677896060650.2498 }, "end": { "local": "1991-06-27T11:58:25+09:00", "utc": "1991-06-27T02:58:25Z", "ms": 677991505024.2875 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-06-26", "window": { "start": { "local": "1991-06-26T20:51:26+09:00", "utc": "1991-06-26T11:51:26Z", "ms": 677937086499.4017 }, "end": { "local": "1991-06-26T22:12:26+09:00", "utc": "1991-06-26T13:12:26Z", "ms": 677941945583.6733 } }, "covered_min": 81, "window_min": 81, "qualifies": true }, { "local_date": "1991-06-27", "window": { "start": { "local": "1991-06-27T20:51:34+09:00", "utc": "1991-06-27T11:51:34Z", "ms": 678023493542.8851 }, "end": { "local": "1991-06-27T22:12:34+09:00", "utc": "1991-06-27T13:12:34Z", "ms": 678028354134.0724 } }, "covered_min": 0, "window_min": 81, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:28 on Wed 26 Jun to 11:58 on Thu 27 Jun.", "fact": "1991-06-26T00:27:41Z → 1991-06-27T02:58:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:51–22:12 on the 26th, 20:52–22:13 on the 27th.", "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 26th and 0 of 81 on the 27th.", "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 31989 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Zunyi, 1991: Wednesday 26 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": "1991-06-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-26", "confidence": "determinate" } ], "quote": "In Zunyi, Vaṭa Sāvitrī Vrata 1991 falls on Wednesday 26 June. Pūrṇimā runs from 09:28 on Wed 26 Jun to 11:58 on Thu 27 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-06-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-06-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8245, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-06-30T19:18:26+09:00", "utc": "1991-06-30T10:18:26Z", "ms": 678277106048.0992 }, "end": { "local": "1991-07-01T21:16:17+09:00", "utc": "1991-07-01T12:16:17Z", "ms": 678370577230.932 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-06-30T19:18:26+09:00", "utc": "1991-06-30T10:18:26Z", "ms": 678277106048.0992 }, "end": { "local": "1991-07-01T21:16:17+09:00", "utc": "1991-07-01T12:16:17Z", "ms": 678370577230.932 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-06-30", "window": { "start": { "local": "1991-06-30T23:02:00+09:00", "utc": "1991-06-30T14:02:00Z", "ms": 678290519991.5869 }, "end": { "local": "1991-06-30T23:02:00+09:00", "utc": "1991-06-30T14:02:00Z", "ms": 678290519991.5869 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-07-01", "window": { "start": { "local": "1991-07-01T23:33:42+09:00", "utc": "1991-07-01T14:33:42Z", "ms": 678378822118.5593 }, "end": { "local": "1991-07-01T23:33:42+09:00", "utc": "1991-07-01T14:33:42Z", "ms": 678378822118.5593 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:18 on Sun 30 Jun to 21:16 on Mon 1 Jul.", "fact": "1991-06-30T10:18:26Z → 1991-07-01T12:16:17Z" }, { "step": "kaala", "text": "Moonrise is at 23:02 on the 30th and 23:34 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 8245 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Sunday 30 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": "1991-06-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-06-30", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Sunday 30 June. Caturthī runs from 19:18 on Sun 30 Jun to 21:16 on Mon 1 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-06-30", "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/1991/ekadashi?on=1991-07-08", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38186, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-07-07T20:26:30+09:00", "utc": "1991-07-07T11:26:30Z", "ms": 678885989542.6858 }, "end": { "local": "1991-07-08T17:55:56+09:00", "utc": "1991-07-08T08:55:56Z", "ms": 678963356113.3668 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-07T20:26:30+09:00", "utc": "1991-07-07T11:26:30Z", "ms": 678885989542.6858 }, "end": { "local": "1991-07-08T17:55:56+09:00", "utc": "1991-07-08T08:55:56Z", "ms": 678963356113.3668 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-07-08", "window": { "start": { "local": "1991-07-08T07:02:56+09:00", "utc": "1991-07-07T22:02:56Z", "ms": 678924176019.9855 }, "end": { "local": "1991-07-08T07:02:56+09:00", "utc": "1991-07-07T22:02:56Z", "ms": 678924176019.9855 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-07-09", "window": { "start": { "local": "1991-07-09T07:03:23+09:00", "utc": "1991-07-08T22:03:23Z", "ms": 679010602676.405 }, "end": { "local": "1991-07-09T07:03:23+09:00", "utc": "1991-07-08T22:03:23Z", "ms": 679010602676.405 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:26 on Sun 7 Jul to 17:56 on Mon 8 Jul.", "fact": "1991-07-07T11:26:30Z → 1991-07-08T08:55:56Z" }, { "step": "kaala", "text": "Sunrise is at 07:03 on the 8th and 07:03 on the 9th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 8th and is not on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 38186 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Zunyi, 1991: Monday 8 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-07-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-08", "confidence": "determinate" } ], "quote": "In Zunyi, Yoginī Ekādaśī 1991 falls on Monday 8 July. Ekādaśī runs from 20:26 on Sun 7 Jul to 17:56 on Mon 8 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-07-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-07-09", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21417, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-07-09T14:54:23+09:00", "utc": "1991-07-09T05:54:23Z", "ms": 679038862675.042 }, "end": { "local": "1991-07-10T11:29:37+09:00", "utc": "1991-07-10T02:29:37Z", "ms": 679112977107.4143 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-09T14:54:23+09:00", "utc": "1991-07-09T05:54:23Z", "ms": 679038862675.042 }, "end": { "local": "1991-07-10T11:29:37+09:00", "utc": "1991-07-10T02:29:37Z", "ms": 679112977107.4143 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-07-09", "window": { "start": { "local": "1991-07-09T20:51:19+09:00", "utc": "1991-07-09T11:51:19Z", "ms": 679060279330.3868 }, "end": { "local": "1991-07-09T22:12:59+09:00", "utc": "1991-07-09T13:12:59Z", "ms": 679065179407.424 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "1991-07-10", "window": { "start": { "local": "1991-07-10T20:51:10+09:00", "utc": "1991-07-10T11:51:10Z", "ms": 679146669606.0964 }, "end": { "local": "1991-07-10T22:12:55+09:00", "utc": "1991-07-10T13:12:55Z", "ms": 679151574682.5026 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:54 on Tue 9 Jul to 11:30 on Wed 10 Jul.", "fact": "1991-07-09T05:54:23Z → 1991-07-10T02:29:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:51–22:13 on the 9th, 20:51–22:13 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 82 of 82 minutes on the 9th and 0 of 82 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21417 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Tuesday 9 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-07-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-09", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Tuesday 9 July. Trayodaśī runs from 14:54 on Tue 9 Jul to 11:30 on Wed 10 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-07-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shivaratri?on=1991-07-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19721, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-07-10T11:29:37+09:00", "utc": "1991-07-10T02:29:37Z", "ms": 679112977107.4143 }, "end": { "local": "1991-07-11T07:50:25+09:00", "utc": "1991-07-10T22:50:25Z", "ms": 679186224710.9185 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-10T11:29:37+09:00", "utc": "1991-07-10T02:29:37Z", "ms": 679112977107.4143 }, "end": { "local": "1991-07-11T07:50:25+09:00", "utc": "1991-07-10T22:50:25Z", "ms": 679186224710.9185 } }, "kaala": "nishita", "days": [ { "local_date": "1991-07-09", "window": { "start": { "local": "1991-07-10T01:33:35+09:00", "utc": "1991-07-09T16:33:35Z", "ms": 679077214619.2761 }, "end": { "local": "1991-07-10T02:21:35+09:00", "utc": "1991-07-09T17:21:35Z", "ms": 679080094619.2761 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-07-10", "window": { "start": { "local": "1991-07-11T01:33:44+09:00", "utc": "1991-07-10T16:33:44Z", "ms": 679163623642.6194 }, "end": { "local": "1991-07-11T02:21:44+09:00", "utc": "1991-07-10T17:21:44Z", "ms": 679166503642.6194 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:30 on Wed 10 Jul to 07:50 on Thu 11 Jul.", "fact": "1991-07-10T02:29:37Z → 1991-07-10T22:50:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 01:34–02:22 on the 9th, 01:34–02:22 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19721 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Wednesday 10 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-07-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-10", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Wednesday 10 July. Caturdaśī runs from 11:30 on Wed 10 Jul to 07:50 on Thu 11 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-07-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23907, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1991-07-13T00:26:13+09:00", "utc": "1991-07-12T15:26:13Z", "ms": 679332373030.0295 }, "end": { "local": "1991-07-13T21:00:21+09:00", "utc": "1991-07-13T12:00:21Z", "ms": 679406420802.511 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-13T00:26:13+09:00", "utc": "1991-07-12T15:26:13Z", "ms": 679332373030.0295 }, "end": { "local": "1991-07-13T21:00:21+09:00", "utc": "1991-07-13T12:00:21Z", "ms": 679406420802.511 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-07-12", "window": { "start": { "local": "1991-07-12T13:33:46+09:00", "utc": "1991-07-12T04:33:46Z", "ms": 679293226020.3262 }, "end": { "local": "1991-07-12T14:21:46+09:00", "utc": "1991-07-12T05:21:46Z", "ms": 679296106020.3262 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-07-13", "window": { "start": { "local": "1991-07-13T13:33:53+09:00", "utc": "1991-07-13T04:33:53Z", "ms": 679379633485.3181 }, "end": { "local": "1991-07-13T14:21:53+09:00", "utc": "1991-07-13T05:21:53Z", "ms": 679382513485.3181 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 00:26 on Sat 13 Jul to 21:00 on Sat 13 Jul.", "fact": "1991-07-12T15:26:13Z → 1991-07-13T12:00:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:34–14:22 on the 12th, 13:34–14:22 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23907 s" }, { "step": "ruling", "text": "Rathayātrā, Zunyi, 1991: Saturday 13 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rathayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')" } ], "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-13", "confidence": "determinate" } ], "quote": "In Zunyi, Rathayātrā 1991 falls on Saturday 13 July. Dvitīyā runs from 00:26 on Sat 13 Jul to 21:00 on Sat 13 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vinayaka-chaturthi?on=1991-07-15", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3866, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-07-14T17:57:39+09:00", "utc": "1991-07-14T08:57:39Z", "ms": 679481859001.3954 }, "end": { "local": "1991-07-15T15:26:33+09:00", "utc": "1991-07-15T06:26:33Z", "ms": 679559192506.4352 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-14T17:57:39+09:00", "utc": "1991-07-14T08:57:39Z", "ms": 679481859001.3954 }, "end": { "local": "1991-07-15T15:26:33+09:00", "utc": "1991-07-15T06:26:33Z", "ms": 679559192506.4352 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-07-14", "window": { "start": { "local": "1991-07-14T13:34:00+09:00", "utc": "1991-07-14T04:34:00Z", "ms": 679466040477.8245 }, "end": { "local": "1991-07-14T14:22:00+09:00", "utc": "1991-07-14T05:22:00Z", "ms": 679468920477.8245 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-07-15", "window": { "start": { "local": "1991-07-15T13:34:07+09:00", "utc": "1991-07-15T04:34:07Z", "ms": 679552446978.9662 }, "end": { "local": "1991-07-15T14:22:07+09:00", "utc": "1991-07-15T05:22:07Z", "ms": 679555326978.9662 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:58 on Sun 14 Jul to 15:27 on Mon 15 Jul.", "fact": "1991-07-14T08:57:39Z → 1991-07-15T06:26:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:34–14:22 on the 14th, 13:34–14:22 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 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 3866 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1991: Monday 15 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-07-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-15", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1991 falls on Monday 15 July. Caturthī runs from 17:58 on Sun 14 Jul to 15:27 on Mon 15 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-07-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-16", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 3, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1991-07-15T15:26:33+09:00", "utc": "1991-07-15T06:26:33Z", "ms": 679559192506.4352 }, "end": { "local": "1991-07-16T13:34:10+09:00", "utc": "1991-07-16T04:34:10Z", "ms": 679638849735.9423 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-15T15:26:33+09:00", "utc": "1991-07-15T06:26:33Z", "ms": 679559192506.4352 }, "end": { "local": "1991-07-16T13:34:10+09:00", "utc": "1991-07-16T04:34:10Z", "ms": 679638849735.9423 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-07-15", "window": { "start": { "local": "1991-07-15T13:34:07+09:00", "utc": "1991-07-15T04:34:07Z", "ms": 679552446978.9662 }, "end": { "local": "1991-07-15T14:22:07+09:00", "utc": "1991-07-15T05:22:07Z", "ms": 679555326978.9662 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-07-16", "window": { "start": { "local": "1991-07-16T13:34:13+09:00", "utc": "1991-07-16T04:34:13Z", "ms": 679638852972 }, "end": { "local": "1991-07-16T14:22:13+09:00", "utc": "1991-07-16T05:22:13Z", "ms": 679641732972 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 15:27 on Mon 15 Jul to 13:34 on Tue 16 Jul.", "fact": "1991-07-15T06:26:33Z → 1991-07-16T04:34:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:34–14:22 on the 15th, 13:34–14:22 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 3 s < 300 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Zunyi, 1991: Tuesday 16 July.", "fact": "confidence: boundary (margin)" } ], "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": "1991-07-16", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-16", "confidence": "determinate" } ], "quote": "In Zunyi, Skanda Pañcamī 1991 falls on Tuesday 16 July. Pañcamī runs from 15:27 on Mon 15 Jul to 13:34 on Tue 16 Jul, and reaches madhyāhna on neither day. It is 0 min 03 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4113, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1991-07-17T12:25:46+09:00", "utc": "1991-07-17T03:25:46Z", "ms": 679721145576.2615 }, "end": { "local": "1991-07-18T12:04:02+09:00", "utc": "1991-07-18T03:04:02Z", "ms": 679806242360.0255 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-17T12:25:46+09:00", "utc": "1991-07-17T03:25:46Z", "ms": 679721145576.2615 }, "end": { "local": "1991-07-18T12:04:02+09:00", "utc": "1991-07-18T03:04:02Z", "ms": 679806242360.0255 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-07-17", "window": { "start": { "local": "1991-07-17T13:34:18+09:00", "utc": "1991-07-17T04:34:18Z", "ms": 679725258442.2822 }, "end": { "local": "1991-07-17T14:22:18+09:00", "utc": "1991-07-17T05:22:18Z", "ms": 679728138442.2822 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-07-18", "window": { "start": { "local": "1991-07-18T13:34:23+09:00", "utc": "1991-07-18T04:34:23Z", "ms": 679811663377.0693 }, "end": { "local": "1991-07-18T14:22:23+09:00", "utc": "1991-07-18T05:22:23Z", "ms": 679814543377.0693 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:26 on Wed 17 Jul to 12:04 on Thu 18 Jul.", "fact": "1991-07-17T03:25:46Z → 1991-07-18T03:04:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:34–14:22 on the 17th, 13:34–14:22 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4113 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Zunyi, 1991: Wednesday 17 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vivasvat-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Vivasvat saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-07-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-17", "confidence": "determinate" } ], "quote": "In Zunyi, Vivasvat Saptamī 1991 falls on Wednesday 17 July. Saptamī runs from 12:26 on Wed 17 Jul to 12:04 on Thu 18 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-07-22", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29386, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-07-21T15:19:03+09:00", "utc": "1991-07-21T06:19:03Z", "ms": 680077142967.1067 }, "end": { "local": "1991-07-22T17:29:14+09:00", "utc": "1991-07-22T08:29:14Z", "ms": 680171353651.4674 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-21T15:19:03+09:00", "utc": "1991-07-21T06:19:03Z", "ms": 680077142967.1067 }, "end": { "local": "1991-07-22T17:29:14+09:00", "utc": "1991-07-22T08:29:14Z", "ms": 680171353651.4674 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-07-21", "window": { "start": { "local": "1991-07-21T07:09:17+09:00", "utc": "1991-07-20T22:09:17Z", "ms": 680047757350.1914 }, "end": { "local": "1991-07-21T07:09:17+09:00", "utc": "1991-07-20T22:09:17Z", "ms": 680047757350.1914 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-07-22", "window": { "start": { "local": "1991-07-22T07:09:49+09:00", "utc": "1991-07-21T22:09:49Z", "ms": 680134188841.6638 }, "end": { "local": "1991-07-22T07:09:49+09:00", "utc": "1991-07-21T22:09:49Z", "ms": 680134188841.6638 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:19 on Sun 21 Jul to 17:29 on Mon 22 Jul.", "fact": "1991-07-21T06:19:03Z → 1991-07-22T08:29:14Z" }, { "step": "kaala", "text": "Sunrise is at 07:09 on the 21st and 07:10 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29386 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Zunyi, 1991: Monday 22 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": "1991-07-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-22", "confidence": "determinate" } ], "quote": "In Zunyi, Hariśayanī Ekādaśī 1991 falls on Monday 22 July. Ekādaśī runs from 15:19 on Sun 21 Jul to 17:29 on Mon 22 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-07-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-07-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-24", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1231, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-07-23T19:56:20+09:00", "utc": "1991-07-23T10:56:20Z", "ms": 680266579714.7429 }, "end": { "local": "1991-07-24T22:30:20+09:00", "utc": "1991-07-24T13:30:20Z", "ms": 680362220206.1055 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-23T19:56:20+09:00", "utc": "1991-07-23T10:56:20Z", "ms": 680266579714.7429 }, "end": { "local": "1991-07-24T22:30:20+09:00", "utc": "1991-07-24T13:30:20Z", "ms": 680362220206.1055 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-07-23", "window": { "start": { "local": "1991-07-23T20:46:59+09:00", "utc": "1991-07-23T11:46:59Z", "ms": 680269618852.3245 }, "end": { "local": "1991-07-23T22:10:10+09:00", "utc": "1991-07-23T13:10:10Z", "ms": 680274609981.8545 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "1991-07-24", "window": { "start": { "local": "1991-07-24T20:46:30+09:00", "utc": "1991-07-24T11:46:30Z", "ms": 680355990107.7788 }, "end": { "local": "1991-07-24T22:09:49+09:00", "utc": "1991-07-24T13:09:49Z", "ms": 680360989329.6611 } }, "covered_min": 83, "window_min": 83, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:56 on Tue 23 Jul to 22:30 on Wed 24 Jul.", "fact": "1991-07-23T10:56:20Z → 1991-07-24T13:30:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:47–22:10 on the 23rd, 20:47–22:10 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 83 of 83 minutes on the 23rd and 83 of 83 on the 24th.", "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 1231 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Wednesday 24 July.", "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": "1991-07-24", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-23", "confidence": "boundary" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Wednesday 24 July. Trayodaśī runs from 19:56 on Tue 23 Jul to 22:30 on Wed 24 Jul and covers all of pradoṣa that evening. It also reaches the previous evening for 83 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/1991/pradosha-vrata?on=1991-07-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13688, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-07-26T01:02:12+09:00", "utc": "1991-07-25T16:02:12Z", "ms": 680457732479.1953 }, "end": { "local": "1991-07-27T03:24:21+09:00", "utc": "1991-07-26T18:24:21Z", "ms": 680552660974.2233 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-26T01:02:12+09:00", "utc": "1991-07-25T16:02:12Z", "ms": 680457732479.1953 }, "end": { "local": "1991-07-27T03:24:21+09:00", "utc": "1991-07-26T18:24:21Z", "ms": 680552660974.2233 } }, "kaala": "udaya-3", "days": [ { "local_date": "1991-07-26", "window": { "start": { "local": "1991-07-26T07:11:56+09:00", "utc": "1991-07-25T22:11:56Z", "ms": 680479916331.5273 }, "end": { "local": "1991-07-26T09:54:39+09:00", "utc": "1991-07-26T00:54:39Z", "ms": 680489678809.6042 } }, "covered_min": 163, "window_min": 163, "qualifies": true }, { "local_date": "1991-07-27", "window": { "start": { "local": "1991-07-27T07:12:28+09:00", "utc": "1991-07-26T22:12:28Z", "ms": 680566348484.2188 }, "end": { "local": "1991-07-27T09:54:58+09:00", "utc": "1991-07-27T00:54:58Z", "ms": 680576098009.2117 } }, "covered_min": 0, "window_min": 162, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:02 on Fri 26 Jul to 03:24 on Sat 27 Jul.", "fact": "1991-07-25T16:02:12Z → 1991-07-26T18:24:21Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 07:12–09:55 on the 26th, 07:12–09:55 on the 27th.", "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 163 of 163 minutes on the 26th and 0 of 162 on the 27th.", "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 13688 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Zunyi, 1991: Friday 26 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": "1991-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-26", "confidence": "determinate" } ], "quote": "In Zunyi, Vyāsa Pūjā 1991 falls on Friday 26 July. Pūrṇimā runs from 01:02 on Fri 26 Jul to 03:24 on Sat 27 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36621, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-07-26T01:02:12+09:00", "utc": "1991-07-25T16:02:12Z", "ms": 680457732479.1953 }, "end": { "local": "1991-07-27T03:24:21+09:00", "utc": "1991-07-26T18:24:21Z", "ms": 680552660974.2233 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-26T01:02:12+09:00", "utc": "1991-07-25T16:02:12Z", "ms": 680457732479.1953 }, "end": { "local": "1991-07-27T03:24:21+09:00", "utc": "1991-07-26T18:24:21Z", "ms": 680552660974.2233 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-07-26", "window": { "start": { "local": "1991-07-26T13:34:43+09:00", "utc": "1991-07-26T04:34:43Z", "ms": 680502882526.7197 }, "end": { "local": "1991-07-26T14:22:43+09:00", "utc": "1991-07-26T05:22:43Z", "ms": 680505762526.7197 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-07-27", "window": { "start": { "local": "1991-07-27T13:34:42+09:00", "utc": "1991-07-27T04:34:42Z", "ms": 680589282296.7009 }, "end": { "local": "1991-07-27T14:22:42+09:00", "utc": "1991-07-27T05:22:42Z", "ms": 680592162296.7009 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:02 on Fri 26 Jul to 03:24 on Sat 27 Jul.", "fact": "1991-07-25T16:02:12Z → 1991-07-26T18:24:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:35–14:23 on the 26th, 13:35–14:23 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36621 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Zunyi, 1991: Friday 26 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": "1991-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-26", "confidence": "determinate" } ], "quote": "In Zunyi, Guru Pūrṇimā 1991 falls on Friday 26 July. Pūrṇimā runs from 01:02 on Fri 26 Jul to 03:24 on Sat 27 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15372, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-07-26T01:02:12+09:00", "utc": "1991-07-25T16:02:12Z", "ms": 680457732479.1953 }, "end": { "local": "1991-07-27T03:24:21+09:00", "utc": "1991-07-26T18:24:21Z", "ms": 680552660974.2233 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-26T01:02:12+09:00", "utc": "1991-07-25T16:02:12Z", "ms": 680457732479.1953 }, "end": { "local": "1991-07-27T03:24:21+09:00", "utc": "1991-07-26T18:24:21Z", "ms": 680552660974.2233 } }, "kaala": "sayahna", "days": [ { "local_date": "1991-07-25", "window": { "start": { "local": "1991-07-25T18:03:05+09:00", "utc": "1991-07-25T09:03:05Z", "ms": 680432584902.1228 }, "end": { "local": "1991-07-25T20:46:00+09:00", "utc": "1991-07-25T11:46:00Z", "ms": 680442360059.6796 } }, "covered_min": 0, "window_min": 163, "qualifies": false }, { "local_date": "1991-07-26", "window": { "start": { "local": "1991-07-26T18:02:46+09:00", "utc": "1991-07-26T09:02:46Z", "ms": 680518966243.8352 }, "end": { "local": "1991-07-26T20:45:29+09:00", "utc": "1991-07-26T11:45:29Z", "ms": 680528728721.9121 } }, "covered_min": 163, "window_min": 163, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:02 on Fri 26 Jul to 03:24 on Sat 27 Jul.", "fact": "1991-07-25T16:02:12Z → 1991-07-26T18:24:21Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 18:03–20:46 on the 25th, 18:03–20:45 on the 26th.", "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 163 minutes on the 25th and 163 of 163 on the 26th.", "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 15372 s" }, { "step": "ruling", "text": "Kokilā Vrata, Zunyi, 1991: Friday 26 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kokila-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-26", "confidence": "determinate" } ], "quote": "In Zunyi, Kokilā Vrata 1991 falls on Friday 26 July. Pūrṇimā runs from 01:02 on Fri 26 Jul to 03:24 on Sat 27 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10365, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-07-26T01:02:12+09:00", "utc": "1991-07-25T16:02:12Z", "ms": 680457732479.1953 }, "end": { "local": "1991-07-27T03:24:21+09:00", "utc": "1991-07-26T18:24:21Z", "ms": 680552660974.2233 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1991-07-26T01:02:12+09:00", "utc": "1991-07-25T16:02:12Z", "ms": 680457732479.1953 }, "end": { "local": "1991-07-27T03:24:21+09:00", "utc": "1991-07-26T18:24:21Z", "ms": 680552660974.2233 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-07-25", "window": { "start": { "local": "1991-07-25T20:46:00+09:00", "utc": "1991-07-25T11:46:00Z", "ms": 680442360059.6796 }, "end": { "local": "1991-07-25T22:09:28+09:00", "utc": "1991-07-25T13:09:28Z", "ms": 680447367562.5927 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "1991-07-26", "window": { "start": { "local": "1991-07-26T20:45:29+09:00", "utc": "1991-07-26T11:45:29Z", "ms": 680528728721.9121 }, "end": { "local": "1991-07-26T22:09:05+09:00", "utc": "1991-07-26T13:09:05Z", "ms": 680533744690.2196 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:02 on Fri 26 Jul to 03:24 on Sat 27 Jul.", "fact": "1991-07-25T16:02:12Z → 1991-07-26T18:24:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:46–22:09 on the 25th, 20:45–22:09 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 83 minutes on the 25th and 84 of 84 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10365 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Zunyi, 1991: Friday 26 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shiva-shayanotsava", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-26", "confidence": "determinate" } ], "quote": "In Zunyi, Śiva Śayanotsava 1991 falls on Friday 26 July. Pūrṇimā runs from 01:02 on Fri 26 Jul to 03:24 on Sat 27 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30399, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1991-07-28T05:30:40+09:00", "utc": "1991-07-27T20:30:40Z", "ms": 680646640305.4888 }, "end": { "local": "1991-07-29T07:16:21+09:00", "utc": "1991-07-28T22:16:21Z", "ms": 680739381017.3256 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-07-28T05:30:40+09:00", "utc": "1991-07-27T20:30:40Z", "ms": 680646640305.4888 }, "end": { "local": "1991-07-29T07:16:21+09:00", "utc": "1991-07-28T22:16:21Z", "ms": 680739381017.3256 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-07-27", "window": { "start": { "local": "1991-07-27T21:04:01+09:00", "utc": "1991-07-27T12:04:01Z", "ms": 680616241181.9739 }, "end": { "local": "1991-07-27T21:04:01+09:00", "utc": "1991-07-27T12:04:01Z", "ms": 680616241181.9739 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-07-28", "window": { "start": { "local": "1991-07-28T21:36:32+09:00", "utc": "1991-07-28T12:36:32Z", "ms": 680704592423.9741 }, "end": { "local": "1991-07-28T21:36:32+09:00", "utc": "1991-07-28T12:36:32Z", "ms": 680704592423.9741 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 05:31 on Sun 28 Jul to 07:16 on Mon 29 Jul.", "fact": "1991-07-27T20:30:40Z → 1991-07-28T22:16:21Z" }, { "step": "kaala", "text": "Moonrise is at 21:04 on the 27th and 21:37 on the 28th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30399 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Zunyi, 1991: Sunday 28 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": "1991-07-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-28", "confidence": "determinate" } ], "quote": "In Zunyi, Aśūnya Śayana Vrata (Āṣāḍha) 1991 falls on Sunday 28 July. Dvitīyā runs from 05:31 on Sun 28 Jul to 07:16 on Mon 29 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-07-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-07-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37802, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-07-30T08:37:29+09:00", "utc": "1991-07-29T23:37:29Z", "ms": 680830649201.6984 }, "end": { "local": "1991-07-31T09:30:50+09:00", "utc": "1991-07-31T00:30:50Z", "ms": 680920249794.3607 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-07-30T08:37:29+09:00", "utc": "1991-07-29T23:37:29Z", "ms": 680830649201.6984 }, "end": { "local": "1991-07-31T09:30:50+09:00", "utc": "1991-07-31T00:30:50Z", "ms": 680920249794.3607 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-07-29", "window": { "start": { "local": "1991-07-29T22:07:28+09:00", "utc": "1991-07-29T13:07:28Z", "ms": 680792847502.4363 }, "end": { "local": "1991-07-29T22:07:28+09:00", "utc": "1991-07-29T13:07:28Z", "ms": 680792847502.4363 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-07-30", "window": { "start": { "local": "1991-07-30T22:37:51+09:00", "utc": "1991-07-30T13:37:51Z", "ms": 680881071383.739 }, "end": { "local": "1991-07-30T22:37:51+09:00", "utc": "1991-07-30T13:37:51Z", "ms": 680881071383.739 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:37 on Tue 30 Jul to 09:31 on Wed 31 Jul.", "fact": "1991-07-29T23:37:29Z → 1991-07-31T00:30:50Z" }, { "step": "kaala", "text": "Moonrise is at 22:07 on the 29th and 22:38 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37802 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Tuesday 30 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": "1991-07-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-07-30", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Tuesday 30 July. Caturthī runs from 08:37 on Tue 30 Jul to 09:31 on Wed 31 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-07-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/ekadashi?on=1991-08-06", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13621, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-08-06T03:30:51+09:00", "utc": "1991-08-05T18:30:51Z", "ms": 681417050817.8102 }, "end": { "local": "1991-08-07T00:44:01+09:00", "utc": "1991-08-06T15:44:01Z", "ms": 681493441180.6503 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-08-06T03:30:51+09:00", "utc": "1991-08-05T18:30:51Z", "ms": 681417050817.8102 }, "end": { "local": "1991-08-07T00:44:01+09:00", "utc": "1991-08-06T15:44:01Z", "ms": 681493441180.6503 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-08-06", "window": { "start": { "local": "1991-08-06T07:17:52+09:00", "utc": "1991-08-05T22:17:52Z", "ms": 681430671685.3777 }, "end": { "local": "1991-08-06T07:17:52+09:00", "utc": "1991-08-05T22:17:52Z", "ms": 681430671685.3777 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-08-07", "window": { "start": { "local": "1991-08-07T07:18:24+09:00", "utc": "1991-08-06T22:18:24Z", "ms": 681517103859.5093 }, "end": { "local": "1991-08-07T07:18:24+09:00", "utc": "1991-08-06T22:18:24Z", "ms": 681517103859.5093 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:31 on Tue 6 Aug to 00:44 on Wed 7 Aug.", "fact": "1991-08-05T18:30:51Z → 1991-08-06T15:44:01Z" }, { "step": "kaala", "text": "Sunrise is at 07:18 on the 6th and 07:18 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 6th and is not on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13621 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Zunyi, 1991: Tuesday 6 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-06", "confidence": "determinate" } ], "quote": "In Zunyi, Kāmikā Ekādaśī 1991 falls on Tuesday 6 August. Ekādaśī runs from 03:31 on Tue 6 Aug to 00:44 on Wed 7 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-08-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-08-07", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1575, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-08-07T21:36:53+09:00", "utc": "1991-08-07T12:36:53Z", "ms": 681568613008.5281 }, "end": { "local": "1991-08-08T18:16:21+09:00", "utc": "1991-08-08T09:16:21Z", "ms": 681642981060.4672 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-08-07T21:36:53+09:00", "utc": "1991-08-07T12:36:53Z", "ms": 681568613008.5281 }, "end": { "local": "1991-08-08T18:16:21+09:00", "utc": "1991-08-08T09:16:21Z", "ms": 681642981060.4672 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-08-07", "window": { "start": { "local": "1991-08-07T20:37:38+09:00", "utc": "1991-08-07T11:37:38Z", "ms": 681565058051.6958 }, "end": { "local": "1991-08-07T22:03:08+09:00", "utc": "1991-08-07T13:03:08Z", "ms": 681570188437.9122 } }, "covered_min": 26, "window_min": 86, "qualifies": true }, { "local_date": "1991-08-08", "window": { "start": { "local": "1991-08-08T20:36:51+09:00", "utc": "1991-08-08T11:36:51Z", "ms": 681651411487.8788 }, "end": { "local": "1991-08-08T22:02:32+09:00", "utc": "1991-08-08T13:02:32Z", "ms": 681656552347.5684 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:37 on Wed 7 Aug to 18:16 on Thu 8 Aug.", "fact": "1991-08-07T12:36:53Z → 1991-08-08T09:16:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:38–22:03 on the 7th, 20:37–22:03 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 26 of 86 minutes on the 7th and 0 of 86 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1575 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Wednesday 7 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-07", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Wednesday 7 August. Trayodaśī runs from 21:37 on Wed 7 Aug to 18:16 on Thu 8 Aug and covers 26 of 86 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-08-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shivaratri?on=1991-08-08", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26269, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-08-08T18:16:21+09:00", "utc": "1991-08-08T09:16:21Z", "ms": 681642981060.4672 }, "end": { "local": "1991-08-09T14:50:22+09:00", "utc": "1991-08-09T05:50:22Z", "ms": 681717022409.0371 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-08-08T18:16:21+09:00", "utc": "1991-08-08T09:16:21Z", "ms": 681642981060.4672 }, "end": { "local": "1991-08-09T14:50:22+09:00", "utc": "1991-08-09T05:50:22Z", "ms": 681717022409.0371 } }, "kaala": "nishita", "days": [ { "local_date": "1991-08-08", "window": { "start": { "local": "1991-08-09T01:34:10+09:00", "utc": "1991-08-08T16:34:10Z", "ms": 681669249711.7146 }, "end": { "local": "1991-08-09T02:22:10+09:00", "utc": "1991-08-08T17:22:10Z", "ms": 681672129711.7146 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-08-09", "window": { "start": { "local": "1991-08-10T01:34:02+09:00", "utc": "1991-08-09T16:34:02Z", "ms": 681755641841.4197 }, "end": { "local": "1991-08-10T02:22:02+09:00", "utc": "1991-08-09T17:22:02Z", "ms": 681758521841.4197 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:16 on Thu 8 Aug to 14:50 on Fri 9 Aug.", "fact": "1991-08-08T09:16:21Z → 1991-08-09T05:50:22Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 01:34–02:22 on the 8th, 01:34–02:22 on the 9th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26269 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Thursday 8 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-08", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Thursday 8 August. Caturdaśī runs from 18:16 on Thu 8 Aug to 14:50 on Fri 9 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-08-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29037, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1991-08-12T05:29:22+09:00", "utc": "1991-08-11T20:29:22Z", "ms": 681942561775.817 }, "end": { "local": "1991-08-13T03:12:10+09:00", "utc": "1991-08-12T18:12:10Z", "ms": 682020730105.5193 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-08-12T05:29:22+09:00", "utc": "1991-08-11T20:29:22Z", "ms": 681942561775.817 }, "end": { "local": "1991-08-13T03:12:10+09:00", "utc": "1991-08-12T18:12:10Z", "ms": 682020730105.5193 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-08-12", "window": { "start": { "local": "1991-08-12T13:33:19+09:00", "utc": "1991-08-12T04:33:19Z", "ms": 681971599033.3506 }, "end": { "local": "1991-08-12T14:21:19+09:00", "utc": "1991-08-12T05:21:19Z", "ms": 681974479033.3506 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-08-13", "window": { "start": { "local": "1991-08-13T13:33:09+09:00", "utc": "1991-08-13T04:33:09Z", "ms": 682057988935.597 }, "end": { "local": "1991-08-13T14:21:09+09:00", "utc": "1991-08-13T05:21:09Z", "ms": 682060868935.597 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:29 on Mon 12 Aug to 03:12 on Tue 13 Aug.", "fact": "1991-08-11T20:29:22Z → 1991-08-12T18:12:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:33–14:21 on the 12th, 13:33–14:21 on the 13th.", "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 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29037 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Zunyi, 1991: Monday 12 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "madhusrava-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Madhusrava (Gujerat) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-12", "confidence": "determinate" } ], "quote": "In Zunyi, Madhusravā Tṛtīyā (Hariyali Teej) 1991 falls on Monday 12 August. Tṛtīyā runs from 05:29 on Mon 12 Aug to 03:12 on Tue 13 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vinayaka-chaturthi?on=1991-08-13", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37259, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-08-13T03:12:10+09:00", "utc": "1991-08-12T18:12:10Z", "ms": 682020730105.5193 }, "end": { "local": "1991-08-14T01:34:03+09:00", "utc": "1991-08-13T16:34:03Z", "ms": 682101243023.9727 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-08-13T03:12:10+09:00", "utc": "1991-08-12T18:12:10Z", "ms": 682020730105.5193 }, "end": { "local": "1991-08-14T01:34:03+09:00", "utc": "1991-08-13T16:34:03Z", "ms": 682101243023.9727 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-08-13", "window": { "start": { "local": "1991-08-13T13:33:09+09:00", "utc": "1991-08-13T04:33:09Z", "ms": 682057988935.597 }, "end": { "local": "1991-08-13T14:21:09+09:00", "utc": "1991-08-13T05:21:09Z", "ms": 682060868935.597 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-08-14", "window": { "start": { "local": "1991-08-14T13:32:58+09:00", "utc": "1991-08-14T04:32:58Z", "ms": 682144378274.6699 }, "end": { "local": "1991-08-14T14:20:58+09:00", "utc": "1991-08-14T05:20:58Z", "ms": 682147258274.6699 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:12 on Tue 13 Aug to 01:34 on Wed 14 Aug.", "fact": "1991-08-12T18:12:10Z → 1991-08-13T16:34:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:33–14:21 on the 13th, 13:33–14:21 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37259 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1991: Tuesday 13 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-13", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1991 falls on Tuesday 13 August. Caturthī runs from 03:12 on Tue 13 Aug to 01:34 on Wed 14 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-08-13", "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/1991/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37217, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1991-08-14T01:34:03+09:00", "utc": "1991-08-13T16:34:03Z", "ms": 682101243023.9727 }, "end": { "local": "1991-08-15T00:41:15+09:00", "utc": "1991-08-14T15:41:15Z", "ms": 682184475322.5361 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-08-14T01:34:03+09:00", "utc": "1991-08-13T16:34:03Z", "ms": 682101243023.9727 }, "end": { "local": "1991-08-15T00:41:15+09:00", "utc": "1991-08-14T15:41:15Z", "ms": 682184475322.5361 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-08-13", "window": { "start": { "local": "1991-08-13T13:33:09+09:00", "utc": "1991-08-13T04:33:09Z", "ms": 682057988935.597 }, "end": { "local": "1991-08-13T14:21:09+09:00", "utc": "1991-08-13T05:21:09Z", "ms": 682060868935.597 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-08-14", "window": { "start": { "local": "1991-08-14T13:32:58+09:00", "utc": "1991-08-14T04:32:58Z", "ms": 682144378274.6699 }, "end": { "local": "1991-08-14T14:20:58+09:00", "utc": "1991-08-14T05:20:58Z", "ms": 682147258274.6699 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 01:34 on Wed 14 Aug to 00:41 on Thu 15 Aug.", "fact": "1991-08-13T16:34:03Z → 1991-08-14T15:41:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:33–14:21 on the 13th, 13:33–14:21 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 37217 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Zunyi, 1991: Wednesday 14 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-14", "confidence": "determinate" } ], "quote": "In Zunyi, Nāga Pañcamī 1991 falls on Wednesday 14 August. Pañcamī runs from 01:34 on Wed 14 Aug to 00:41 on Thu 15 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-08-21", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 363, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-08-20T07:19:07+09:00", "utc": "1991-08-19T22:19:07Z", "ms": 682640346870.0479 }, "end": { "local": "1991-08-21T09:54:29+09:00", "utc": "1991-08-21T00:54:29Z", "ms": 682736069148.4823 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-08-20T07:19:07+09:00", "utc": "1991-08-19T22:19:07Z", "ms": 682640346870.0479 }, "end": { "local": "1991-08-21T09:54:29+09:00", "utc": "1991-08-21T00:54:29Z", "ms": 682736069148.4823 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-08-20", "window": { "start": { "local": "1991-08-20T07:25:09+09:00", "utc": "1991-08-19T22:25:09Z", "ms": 682640709497.9114 }, "end": { "local": "1991-08-20T07:25:09+09:00", "utc": "1991-08-19T22:25:09Z", "ms": 682640709497.9114 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-08-21", "window": { "start": { "local": "1991-08-21T07:25:39+09:00", "utc": "1991-08-20T22:25:39Z", "ms": 682727139438.6594 }, "end": { "local": "1991-08-21T07:25:39+09:00", "utc": "1991-08-20T22:25:39Z", "ms": 682727139438.6594 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:19 on Tue 20 Aug to 09:54 on Wed 21 Aug.", "fact": "1991-08-19T22:19:07Z → 1991-08-21T00:54:29Z" }, { "step": "kaala", "text": "Sunrise is at 07:25 on the 20th and 07:26 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 20th and is on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both sunrises qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 363 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Zunyi, 1991: Wednesday 21 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": "1991-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-21", "confidence": "determinate" } ], "quote": "In Zunyi, Putradā Ekādaśī 1991 falls on Wednesday 21 August. Ekādaśī runs from 07:19 on Tue 20 Aug to 09:54 on Wed 21 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-08-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3903, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1991-08-21T09:54:29+09:00", "utc": "1991-08-21T00:54:29Z", "ms": 682736069148.4823 }, "end": { "local": "1991-08-22T12:26:11+09:00", "utc": "1991-08-22T03:26:11Z", "ms": 682831570805.5753 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-08-21T09:54:29+09:00", "utc": "1991-08-21T00:54:29Z", "ms": 682736069148.4823 }, "end": { "local": "1991-08-22T12:26:11+09:00", "utc": "1991-08-22T03:26:11Z", "ms": 682831570805.5753 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-08-21", "window": { "start": { "local": "1991-08-21T13:31:29+09:00", "utc": "1991-08-21T04:31:29Z", "ms": 682749088589.8086 }, "end": { "local": "1991-08-21T14:19:29+09:00", "utc": "1991-08-21T05:19:29Z", "ms": 682751968589.8086 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-08-22", "window": { "start": { "local": "1991-08-22T13:31:14+09:00", "utc": "1991-08-22T04:31:14Z", "ms": 682835473761.9355 }, "end": { "local": "1991-08-22T14:19:14+09:00", "utc": "1991-08-22T05:19:14Z", "ms": 682838353761.9355 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 09:54 on Wed 21 Aug to 12:26 on Thu 22 Aug.", "fact": "1991-08-21T00:54:29Z → 1991-08-22T03:26:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:31–14:19 on the 21st, 13:31–14:19 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3903 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Zunyi, 1991: Wednesday 21 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": "1991-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-21", "confidence": "determinate" } ], "quote": "In Zunyi, Dāmodara Dvādaśī 1991 falls on Wednesday 21 August. Dvādaśī runs from 09:54 on Wed 21 Aug to 12:26 on Thu 22 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/pradosha-vrata?on=1991-08-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20393, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-08-22T12:26:11+09:00", "utc": "1991-08-22T03:26:11Z", "ms": 682831570805.5753 }, "end": { "local": "1991-08-23T14:43:25+09:00", "utc": "1991-08-23T05:43:25Z", "ms": 682926205108.1268 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-08-22T12:26:11+09:00", "utc": "1991-08-22T03:26:11Z", "ms": 682831570805.5753 }, "end": { "local": "1991-08-23T14:43:25+09:00", "utc": "1991-08-23T05:43:25Z", "ms": 682926205108.1268 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-08-22", "window": { "start": { "local": "1991-08-22T20:24:18+09:00", "utc": "1991-08-22T11:24:18Z", "ms": 682860258334.4155 }, "end": { "local": "1991-08-22T21:52:37+09:00", "utc": "1991-08-22T12:52:37Z", "ms": 682865557057.014 } }, "covered_min": 88, "window_min": 88, "qualifies": true }, { "local_date": "1991-08-23", "window": { "start": { "local": "1991-08-23T20:23:18+09:00", "utc": "1991-08-23T11:23:18Z", "ms": 682946598187.9221 }, "end": { "local": "1991-08-23T21:51:49+09:00", "utc": "1991-08-23T12:51:49Z", "ms": 682951908847.7769 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:26 on Thu 22 Aug to 14:43 on Fri 23 Aug.", "fact": "1991-08-22T03:26:11Z → 1991-08-23T05:43:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:24–21:53 on the 22nd, 20:23–21:52 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 88 of 88 minutes on the 22nd and 0 of 89 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 20393 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Thursday 22 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": "1991-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-22", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Thursday 22 August. Trayodaśī runs from 12:26 on Thu 22 Aug to 14:43 on Fri 23 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-08-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-25", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 7278, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-08-24T16:38:33+09:00", "utc": "1991-08-24T07:38:33Z", "ms": 683019513049.1682 }, "end": { "local": "1991-08-25T18:07:09+09:00", "utc": "1991-08-25T09:07:09Z", "ms": 683111229069.4039 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1991-08-25T05:26:20+09:00", "utc": "1991-08-24T20:26:20Z", "ms": 683065579760.0901 }, "end": { "local": "1991-08-25T18:07:09+09:00", "utc": "1991-08-25T09:07:09Z", "ms": 683111229069.4039 } }, "kaala": "day", "days": [ { "local_date": "1991-08-24", "window": { "start": { "local": "1991-08-24T07:27:08+09:00", "utc": "1991-08-23T22:27:08Z", "ms": 682986428136.8323 }, "end": { "local": "1991-08-25T07:27:37+09:00", "utc": "1991-08-24T22:27:37Z", "ms": 683072857344.2417 } }, "covered_min": 121, "window_min": 1440, "qualifies": true }, { "local_date": "1991-08-25", "window": { "start": { "local": "1991-08-25T07:27:37+09:00", "utc": "1991-08-24T22:27:37Z", "ms": 683072857344.2417 }, "end": { "local": "1991-08-26T07:28:06+09:00", "utc": "1991-08-25T22:28:06Z", "ms": 683159286383.2457 } }, "covered_min": 640, "window_min": 1440, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:39 on Sat 24 Aug to 18:07 on Sun 25 Aug. Its second half begins at 05:26 on Sun 25 Aug.", "fact": "1991-08-24T07:38:33Z → 1991-08-25T09:07:09Z · second half from 1991-08-24T20:26:20Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 07:27 on the 24th, and from 07:28 on the 25th.", "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 121 of 1440 minutes on the 24th and 640 of 1440 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 7278 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Zunyi, 1991: Sunday 25 August.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "raksha-bandhana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana" } ], "kaala": "day", "priority": "unstated", "when_absent": "unstated", "half": "second" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-25", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-25", "confidence": "boundary" } ], "quote": "In Zunyi, Rakṣā Bandhana (Rakhi) 1991 falls on Sunday 25 August. The second half of Pūrṇimā runs from 05:26 on Sun 25 Aug to 18:07 on Sun 25 Aug and falls on two days: 640 minutes of it on the 25th, 121 on the 24th; the rule does not say which to take, and the day that holds more of it is ruled: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8390, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-08-24T16:38:33+09:00", "utc": "1991-08-24T07:38:33Z", "ms": 683019513049.1682 }, "end": { "local": "1991-08-25T18:07:09+09:00", "utc": "1991-08-25T09:07:09Z", "ms": 683111229069.4039 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1991-08-24T16:38:33+09:00", "utc": "1991-08-24T07:38:33Z", "ms": 683019513049.1682 }, "end": { "local": "1991-08-25T18:07:09+09:00", "utc": "1991-08-25T09:07:09Z", "ms": 683111229069.4039 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-08-24", "window": { "start": { "local": "1991-08-24T13:30:43+09:00", "utc": "1991-08-24T04:30:43Z", "ms": 683008242732.3824 }, "end": { "local": "1991-08-24T14:18:43+09:00", "utc": "1991-08-24T05:18:43Z", "ms": 683011122732.3824 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-08-25", "window": { "start": { "local": "1991-08-25T13:30:27+09:00", "utc": "1991-08-25T04:30:27Z", "ms": 683094626562.7327 }, "end": { "local": "1991-08-25T14:18:27+09:00", "utc": "1991-08-25T05:18:27Z", "ms": 683097506562.7327 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:39 on Sat 24 Aug to 18:07 on Sun 25 Aug.", "fact": "1991-08-24T07:38:33Z → 1991-08-25T09:07:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:31–14:19 on the 24th, 13:30–14:18 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8390 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Zunyi, 1991: Sunday 25 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": "1991-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-25", "confidence": "determinate" } ], "quote": "In Zunyi, Ṛṣi Tarpaṇa 1991 falls on Sunday 25 August. Pūrṇimā runs from 16:39 on Sat 24 Aug to 18:07 on Sun 25 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5533, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1991-08-26T19:07:30+09:00", "utc": "1991-08-26T10:07:30Z", "ms": 683201250433.1428 }, "end": { "local": "1991-08-27T19:39:49+09:00", "utc": "1991-08-27T10:39:49Z", "ms": 683289588530.1411 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-08-26T19:07:30+09:00", "utc": "1991-08-26T10:07:30Z", "ms": 683201250433.1428 }, "end": { "local": "1991-08-27T19:39:49+09:00", "utc": "1991-08-27T10:39:49Z", "ms": 683289588530.1411 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-08-26", "window": { "start": { "local": "1991-08-26T20:40:51+09:00", "utc": "1991-08-26T11:40:51Z", "ms": 683206850880.039 }, "end": { "local": "1991-08-26T20:40:51+09:00", "utc": "1991-08-26T11:40:51Z", "ms": 683206850880.039 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-08-27", "window": { "start": { "local": "1991-08-27T21:12:01+09:00", "utc": "1991-08-27T12:12:01Z", "ms": 683295121141.1427 }, "end": { "local": "1991-08-27T21:12:01+09:00", "utc": "1991-08-27T12:12:01Z", "ms": 683295121141.1427 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 19:08 on Mon 26 Aug to 19:40 on Tue 27 Aug.", "fact": "1991-08-26T10:07:30Z → 1991-08-27T10:39:49Z" }, { "step": "kaala", "text": "Moonrise is at 20:41 on the 26th and 21:12 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5533 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Zunyi, 1991: Monday 26 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ashunya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 2 Asunyasayana vrata (Dvitiya current at moonrise; if occurs on two successive days, it is to be observed on the second day)." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-26", "confidence": "determinate" } ], "quote": "In Zunyi, Aśūnya Śayana Vrata 1991 falls on Monday 26 August. Dvitīyā runs from 19:08 on Mon 26 Aug to 19:40 on Tue 27 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19316, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1991-08-27T19:39:49+09:00", "utc": "1991-08-27T10:39:49Z", "ms": 683289588530.1411 }, "end": { "local": "1991-08-28T19:45:18+09:00", "utc": "1991-08-28T10:45:18Z", "ms": 683376317988.2264 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-08-27T19:39:49+09:00", "utc": "1991-08-27T10:39:49Z", "ms": 683289588530.1411 }, "end": { "local": "1991-08-28T19:45:18+09:00", "utc": "1991-08-28T10:45:18Z", "ms": 683376317988.2264 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-08-27", "window": { "start": { "local": "1991-08-27T13:29:53+09:00", "utc": "1991-08-27T04:29:53Z", "ms": 683267392999.051 }, "end": { "local": "1991-08-27T14:17:53+09:00", "utc": "1991-08-27T05:17:53Z", "ms": 683270272999.051 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-08-28", "window": { "start": { "local": "1991-08-28T13:29:36+09:00", "utc": "1991-08-28T04:29:36Z", "ms": 683353775640.9482 }, "end": { "local": "1991-08-28T14:17:36+09:00", "utc": "1991-08-28T05:17:36Z", "ms": 683356655640.9482 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 19:40 on Tue 27 Aug to 19:45 on Wed 28 Aug.", "fact": "1991-08-27T10:39:49Z → 1991-08-28T10:45:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:30–14:18 on the 27th, 13:30–14:18 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19316 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Zunyi, 1991: Wednesday 28 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": "1991-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-28", "confidence": "determinate" } ], "quote": "In Zunyi, Kajjalī Tṛtīyā (Kajari Teej) 1991 falls on Wednesday 28 August. Tṛtīyā runs from 19:40 on Tue 27 Aug to 19:45 on Wed 28 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1969, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-08-28T19:45:18+09:00", "utc": "1991-08-28T10:45:18Z", "ms": 683376317988.2264 }, "end": { "local": "1991-08-29T19:25:34+09:00", "utc": "1991-08-29T10:25:34Z", "ms": 683461534207.3683 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-08-28T19:45:18+09:00", "utc": "1991-08-28T10:45:18Z", "ms": 683376317988.2264 }, "end": { "local": "1991-08-29T19:25:34+09:00", "utc": "1991-08-29T10:25:34Z", "ms": 683461534207.3683 } }, "kaala": "sayahna", "days": [ { "local_date": "1991-08-28", "window": { "start": { "local": "1991-08-28T17:44:19+09:00", "utc": "1991-08-28T08:44:19Z", "ms": 683369058631.9418 }, "end": { "local": "1991-08-28T20:18:07+09:00", "utc": "1991-08-28T11:18:07Z", "ms": 683378287292.6041 } }, "covered_min": 33, "window_min": 154, "qualifies": true }, { "local_date": "1991-08-29", "window": { "start": { "local": "1991-08-29T17:43:33+09:00", "utc": "1991-08-29T08:43:33Z", "ms": 683455413132.4526 }, "end": { "local": "1991-08-29T20:17:03+09:00", "utc": "1991-08-29T11:17:03Z", "ms": 683464623271.8671 } }, "covered_min": 102, "window_min": 154, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:45 on Wed 28 Aug to 19:26 on Thu 29 Aug.", "fact": "1991-08-28T10:45:18Z → 1991-08-29T10:25:34Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:44–20:18 on the 28th, 17:44–20:17 on the 29th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 33 of 154 minutes on the 28th and 102 of 154 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both late afternoons qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 1969 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Zunyi, 1991: Wednesday 28 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bahula-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day)." } ], "kaala": "sayahna", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-28", "confidence": "determinate" } ], "quote": "In Zunyi, Bahulā Caturthī 1991 falls on Wednesday 28 August. Caturthī runs from 19:45 on Wed 28 Aug to 19:26 on Thu 29 Aug and covers 33 of 154 minutes of sāyāhna that late afternoon. It also reaches the next late afternoon for 102 minutes; by the rule the first late afternoon is taken.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-08-28", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7160, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-08-28T19:45:18+09:00", "utc": "1991-08-28T10:45:18Z", "ms": 683376317988.2264 }, "end": { "local": "1991-08-29T19:25:34+09:00", "utc": "1991-08-29T10:25:34Z", "ms": 683461534207.3683 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-08-28T19:45:18+09:00", "utc": "1991-08-28T10:45:18Z", "ms": 683376317988.2264 }, "end": { "local": "1991-08-29T19:25:34+09:00", "utc": "1991-08-29T10:25:34Z", "ms": 683461534207.3683 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-08-28", "window": { "start": { "local": "1991-08-28T21:44:38+09:00", "utc": "1991-08-28T12:44:38Z", "ms": 683383477719.6973 }, "end": { "local": "1991-08-28T21:44:38+09:00", "utc": "1991-08-28T12:44:38Z", "ms": 683383477719.6973 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-08-29", "window": { "start": { "local": "1991-08-29T22:20:00+09:00", "utc": "1991-08-29T13:20:00Z", "ms": 683471999524.7075 }, "end": { "local": "1991-08-29T22:20:00+09:00", "utc": "1991-08-29T13:20:00Z", "ms": 683471999524.7075 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:45 on Wed 28 Aug to 19:26 on Thu 29 Aug.", "fact": "1991-08-28T10:45:18Z → 1991-08-29T10:25:34Z" }, { "step": "kaala", "text": "Moonrise is at 21:45 on the 28th and 22:20 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 28th and is not on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7160 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Wednesday 28 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-28", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Wednesday 28 August. Caturthī runs from 19:45 on Wed 28 Aug to 19:26 on Thu 29 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-08-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11958, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1991-08-30T18:42:05+09:00", "utc": "1991-08-30T09:42:05Z", "ms": 683545325106.0857 }, "end": { "local": "1991-08-31T17:35:59+09:00", "utc": "1991-08-31T08:35:59Z", "ms": 683627759296.5688 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-08-30T18:42:05+09:00", "utc": "1991-08-30T09:42:05Z", "ms": 683545325106.0857 }, "end": { "local": "1991-08-31T17:35:59+09:00", "utc": "1991-08-31T08:35:59Z", "ms": 683627759296.5688 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-08-30", "window": { "start": { "local": "1991-08-30T13:29:00+09:00", "utc": "1991-08-30T04:29:00Z", "ms": 683526539864.9761 }, "end": { "local": "1991-08-30T14:17:00+09:00", "utc": "1991-08-30T05:17:00Z", "ms": 683529419864.9761 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-08-31", "window": { "start": { "local": "1991-08-31T13:28:41+09:00", "utc": "1991-08-31T04:28:41Z", "ms": 683612921484.6516 }, "end": { "local": "1991-08-31T14:16:41+09:00", "utc": "1991-08-31T05:16:41Z", "ms": 683615801484.6516 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 18:42 on Fri 30 Aug to 17:36 on Sat 31 Aug.", "fact": "1991-08-30T09:42:05Z → 1991-08-31T08:35:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:29–14:17 on the 30th, 13:29–14:17 on the 31st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 48 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11958 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Zunyi, 1991: Saturday 31 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "hala-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Hala sasthi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-08-31", "confidence": "determinate" } ], "quote": "In Zunyi, Hala Ṣaṣṭhī 1991 falls on Saturday 31 August. Ṣaṣṭhī runs from 18:42 on Fri 30 Aug to 17:36 on Sat 31 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33627, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1991-09-01T16:08:10+09:00", "utc": "1991-09-01T07:08:10Z", "ms": 683708890058.8882 }, "end": { "local": "1991-09-02T14:19:32+09:00", "utc": "1991-09-02T05:19:32Z", "ms": 683788771886.8743 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-01T16:08:10+09:00", "utc": "1991-09-01T07:08:10Z", "ms": 683708890058.8882 }, "end": { "local": "1991-09-02T14:19:32+09:00", "utc": "1991-09-02T05:19:32Z", "ms": 683788771886.8743 } }, "kaala": "nishita", "days": [ { "local_date": "1991-09-01", "window": { "start": { "local": "1991-09-02T01:28:37+09:00", "utc": "1991-09-01T16:28:37Z", "ms": 683742516859.138 }, "end": { "local": "1991-09-02T02:16:37+09:00", "utc": "1991-09-01T17:16:37Z", "ms": 683745396859.138 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-09-02", "window": { "start": { "local": "1991-09-03T01:28:18+09:00", "utc": "1991-09-02T16:28:18Z", "ms": 683828897843.189 }, "end": { "local": "1991-09-03T02:16:18+09:00", "utc": "1991-09-02T17:16:18Z", "ms": 683831777843.189 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 16:08 on Sun 1 Sep to 14:20 on Mon 2 Sep.", "fact": "1991-09-01T07:08:10Z → 1991-09-02T05:19:32Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 01:29–02:17 on the 1st, 01:28–02:16 on the 2nd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during niśītha. It covers 48 of 48 minutes on the 1st and 0 of 48 on the 2nd.", "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 33627 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Zunyi, 1991: Sunday 1 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "janmashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami." } ], "not_evaluated": "The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.", "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-01", "confidence": "determinate" } ], "quote": "In Zunyi, Janmāṣṭamī 1991 falls on Sunday 1 September. Aṣṭamī runs from 16:08 on Sun 1 Sep to 14:20 on Mon 2 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6707, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1991-08-31T17:35:59+09:00", "utc": "1991-08-31T08:35:59Z", "ms": 683627759296.5688 }, "end": { "local": "1991-09-01T16:08:10+09:00", "utc": "1991-09-01T07:08:10Z", "ms": 683708890058.8882 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-08-31T17:35:59+09:00", "utc": "1991-08-31T08:35:59Z", "ms": 683627759296.5688 }, "end": { "local": "1991-09-01T16:08:10+09:00", "utc": "1991-09-01T07:08:10Z", "ms": 683708890058.8882 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-08-31", "window": { "start": { "local": "1991-08-31T13:28:41+09:00", "utc": "1991-08-31T04:28:41Z", "ms": 683612921484.6516 }, "end": { "local": "1991-08-31T14:16:41+09:00", "utc": "1991-08-31T05:16:41Z", "ms": 683615801484.6516 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-09-01", "window": { "start": { "local": "1991-09-01T13:28:23+09:00", "utc": "1991-09-01T04:28:23Z", "ms": 683699302801.0469 }, "end": { "local": "1991-09-01T14:16:23+09:00", "utc": "1991-09-01T05:16:23Z", "ms": 683702182801.0469 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 17:36 on Sat 31 Aug to 16:08 on Sun 1 Sep.", "fact": "1991-08-31T08:35:59Z → 1991-09-01T07:08:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:29–14:17 on the 31st, 13:28–14:16 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 31st and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6707 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Zunyi, 1991: Sunday 1 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": "1991-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-01", "confidence": "determinate" } ], "quote": "In Zunyi, Śītalā Saptamī 1991 falls on Sunday 1 September. Saptamī runs from 17:36 on Sat 31 Aug to 16:08 on Sun 1 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-09-04", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1584, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-09-04T09:45:56+09:00", "utc": "1991-09-04T00:45:56Z", "ms": 683945156116.0343 }, "end": { "local": "1991-09-05T07:06:26+09:00", "utc": "1991-09-04T22:06:26Z", "ms": 684021985887.659 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-04T09:45:56+09:00", "utc": "1991-09-04T00:45:56Z", "ms": 683945156116.0343 }, "end": { "local": "1991-09-05T07:06:26+09:00", "utc": "1991-09-04T22:06:26Z", "ms": 684021985887.659 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-09-04", "window": { "start": { "local": "1991-09-04T07:32:22+09:00", "utc": "1991-09-03T22:32:22Z", "ms": 683937141649.7672 }, "end": { "local": "1991-09-04T07:32:22+09:00", "utc": "1991-09-03T22:32:22Z", "ms": 683937141649.7672 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-09-05", "window": { "start": { "local": "1991-09-05T07:32:50+09:00", "utc": "1991-09-04T22:32:50Z", "ms": 684023569502.3615 }, "end": { "local": "1991-09-05T07:32:50+09:00", "utc": "1991-09-04T22:32:50Z", "ms": 684023569502.3615 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:46 on Wed 4 Sep to 07:06 on Thu 5 Sep.", "fact": "1991-09-04T00:45:56Z → 1991-09-04T22:06:26Z" }, { "step": "kaala", "text": "Sunrise is at 07:32 on the 4th and 07:33 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither sunrise qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 1584 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Zunyi, 1991: Wednesday 4 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-04", "confidence": "determinate" } ], "quote": "In Zunyi, Ajā Ekādaśī 1991 falls on Wednesday 4 September. Ekādaśī runs from 09:46 on Wed 4 Sep to 07:06 on Thu 5 Sep, and is current at sunrise on neither day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-09-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-09-06", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13540, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-09-06T04:17:33+09:00", "utc": "1991-09-05T19:17:33Z", "ms": 684098252614.1318 }, "end": { "local": "1991-09-07T01:25:18+09:00", "utc": "1991-09-06T16:25:18Z", "ms": 684174317792.9896 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-06T04:17:33+09:00", "utc": "1991-09-05T19:17:33Z", "ms": 684098252614.1318 }, "end": { "local": "1991-09-07T01:25:18+09:00", "utc": "1991-09-06T16:25:18Z", "ms": 684174317792.9896 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-09-05", "window": { "start": { "local": "1991-09-05T20:09:21+09:00", "utc": "1991-09-05T11:09:21Z", "ms": 684068961269.5365 }, "end": { "local": "1991-09-05T21:40:33+09:00", "utc": "1991-09-05T12:40:33Z", "ms": 684074432737.5397 } }, "covered_min": 0, "window_min": 91, "qualifies": false }, { "local_date": "1991-09-06", "window": { "start": { "local": "1991-09-06T20:08:14+09:00", "utc": "1991-09-06T11:08:14Z", "ms": 684155293605.479 }, "end": { "local": "1991-09-06T21:39:38+09:00", "utc": "1991-09-06T12:39:38Z", "ms": 684160777789.6133 } }, "covered_min": 91, "window_min": 91, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:18 on Fri 6 Sep to 01:25 on Sat 7 Sep.", "fact": "1991-09-05T19:17:33Z → 1991-09-06T16:25:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:09–21:41 on the 5th, 20:08–21:40 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 91 minutes on the 5th and 91 of 91 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13540 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Friday 6 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-06", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Friday 6 September. Trayodaśī runs from 04:18 on Fri 6 Sep to 01:25 on Sat 7 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-09-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shivaratri?on=1991-09-06", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-06", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 102, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-09-07T01:25:18+09:00", "utc": "1991-09-06T16:25:18Z", "ms": 684174317792.9896 }, "end": { "local": "1991-09-07T22:36:58+09:00", "utc": "1991-09-07T13:36:58Z", "ms": 684250617872.0807 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-07T01:25:18+09:00", "utc": "1991-09-06T16:25:18Z", "ms": 684174317792.9896 }, "end": { "local": "1991-09-07T22:36:58+09:00", "utc": "1991-09-07T13:36:58Z", "ms": 684250617872.0807 } }, "kaala": "nishita", "days": [ { "local_date": "1991-09-06", "window": { "start": { "local": "1991-09-07T01:26:59+09:00", "utc": "1991-09-06T16:26:59Z", "ms": 684174419295.9827 }, "end": { "local": "1991-09-07T02:14:59+09:00", "utc": "1991-09-06T17:14:59Z", "ms": 684177299295.9827 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-09-07", "window": { "start": { "local": "1991-09-08T01:26:39+09:00", "utc": "1991-09-07T16:26:39Z", "ms": 684260799113.5316 }, "end": { "local": "1991-09-08T02:14:39+09:00", "utc": "1991-09-07T17:14:39Z", "ms": 684263679113.5316 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:25 on Sat 7 Sep to 22:37 on Sat 7 Sep.", "fact": "1991-09-06T16:25:18Z → 1991-09-07T13:36:58Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 01:27–02:15 on the 6th, 01:27–02:15 on the 7th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 102 s < 300 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Friday 6 September.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-06", "confidence": "boundary" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Friday 6 September. Caturdaśī runs from 01:25 on Sat 7 Sep to 22:37 on Sat 7 Sep and covers all of niśītha that night. It is 1 min 42 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-09-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3495, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-09-07T01:25:18+09:00", "utc": "1991-09-06T16:25:18Z", "ms": 684174317792.9896 }, "end": { "local": "1991-09-07T22:36:58+09:00", "utc": "1991-09-07T13:36:58Z", "ms": 684250617872.0807 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-07T01:25:18+09:00", "utc": "1991-09-06T16:25:18Z", "ms": 684174317792.9896 }, "end": { "local": "1991-09-07T22:36:58+09:00", "utc": "1991-09-07T13:36:58Z", "ms": 684250617872.0807 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-09-06", "window": { "start": { "local": "1991-09-06T20:08:14+09:00", "utc": "1991-09-06T11:08:14Z", "ms": 684155293605.479 }, "end": { "local": "1991-09-06T21:39:38+09:00", "utc": "1991-09-06T12:39:38Z", "ms": 684160777789.6133 } }, "covered_min": 0, "window_min": 91, "qualifies": false }, { "local_date": "1991-09-07", "window": { "start": { "local": "1991-09-07T20:07:06+09:00", "utc": "1991-09-07T11:07:06Z", "ms": 684241625598.9591 }, "end": { "local": "1991-09-07T21:38:43+09:00", "utc": "1991-09-07T12:38:43Z", "ms": 684247122536.1785 } }, "covered_min": 92, "window_min": 92, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:25 on Sat 7 Sep to 22:37 on Sat 7 Sep.", "fact": "1991-09-06T16:25:18Z → 1991-09-07T13:36:58Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:08–21:40 on the 6th, 20:07–21:39 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 91 minutes on the 6th and 92 of 92 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3495 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Zunyi, 1991: Saturday 7 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": "1991-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-07", "confidence": "determinate" } ], "quote": "In Zunyi, Aghora Caturdaśī 1991 falls on Saturday 7 September. Caturdaśī runs from 01:25 on Sat 7 Sep to 22:37 on Sat 7 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12715, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1991-09-08T20:00:48+09:00", "utc": "1991-09-08T11:00:48Z", "ms": 684327648297.2612 }, "end": { "local": "1991-09-09T17:45:39+09:00", "utc": "1991-09-09T08:45:39Z", "ms": 684405938951.6554 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-08T20:00:48+09:00", "utc": "1991-09-08T11:00:48Z", "ms": 684327648297.2612 }, "end": { "local": "1991-09-09T17:45:39+09:00", "utc": "1991-09-09T08:45:39Z", "ms": 684405938951.6554 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-09-08", "window": { "start": { "local": "1991-09-08T13:26:05+09:00", "utc": "1991-09-08T04:26:05Z", "ms": 684303964950.4082 }, "end": { "local": "1991-09-08T14:14:05+09:00", "utc": "1991-09-08T05:14:05Z", "ms": 684306844950.4082 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-09-09", "window": { "start": { "local": "1991-09-09T13:25:44+09:00", "utc": "1991-09-09T04:25:44Z", "ms": 684390344429.4679 }, "end": { "local": "1991-09-09T14:13:44+09:00", "utc": "1991-09-09T05:13:44Z", "ms": 684393224429.4679 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 20:01 on Sun 8 Sep to 17:46 on Mon 9 Sep.", "fact": "1991-09-08T11:00:48Z → 1991-09-09T08:45:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:26–14:14 on the 8th, 13:26–14:14 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12715 s" }, { "step": "ruling", "text": "Rudra Vrata, Zunyi, 1991: Monday 9 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rudra-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Rudra vrata (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-09", "confidence": "determinate" } ], "quote": "In Zunyi, Rudra Vrata 1991 falls on Monday 9 September. Pratipadā runs from 20:01 on Sun 8 Sep to 17:46 on Mon 9 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2389, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1991-09-10T16:00:19+09:00", "utc": "1991-09-10T07:00:19Z", "ms": 684486019448.2551 }, "end": { "local": "1991-09-11T14:52:52+09:00", "utc": "1991-09-11T05:52:52Z", "ms": 684568371855.629 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-10T16:00:19+09:00", "utc": "1991-09-10T07:00:19Z", "ms": 684486019448.2551 }, "end": { "local": "1991-09-11T14:52:52+09:00", "utc": "1991-09-11T05:52:52Z", "ms": 684568371855.629 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-09-10", "window": { "start": { "local": "1991-09-10T13:25:24+09:00", "utc": "1991-09-10T04:25:24Z", "ms": 684476723744.1702 }, "end": { "local": "1991-09-10T14:13:24+09:00", "utc": "1991-09-10T05:13:24Z", "ms": 684479603744.1702 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-09-11", "window": { "start": { "local": "1991-09-11T13:25:03+09:00", "utc": "1991-09-11T04:25:03Z", "ms": 684563102909.4982 }, "end": { "local": "1991-09-11T14:13:03+09:00", "utc": "1991-09-11T05:13:03Z", "ms": 684565982909.4982 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 16:00 on Tue 10 Sep to 14:53 on Wed 11 Sep.", "fact": "1991-09-10T07:00:19Z → 1991-09-11T05:52:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:25–14:13 on the 10th, 13:25–14:13 on the 11th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2389 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Zunyi, 1991: Wednesday 11 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "haritalika-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Haritalika vrata (paraviddha), Gauri vrata (Orissa), Gauri (Mysore)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-11", "confidence": "determinate" } ], "quote": "In Zunyi, Haritālikā Vrata (Hartalika Teej) 1991 falls on Wednesday 11 September. Tṛtīyā runs from 16:00 on Tue 10 Sep to 14:53 on Wed 11 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1008, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-09-11T14:52:52+09:00", "utc": "1991-09-11T05:52:52Z", "ms": 684568371855.629 }, "end": { "local": "1991-09-12T14:29:29+09:00", "utc": "1991-09-12T05:29:29Z", "ms": 684653369457.356 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-11T14:52:52+09:00", "utc": "1991-09-11T05:52:52Z", "ms": 684568371855.629 }, "end": { "local": "1991-09-12T14:29:29+09:00", "utc": "1991-09-12T05:29:29Z", "ms": 684653369457.356 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-09-11", "window": { "start": { "local": "1991-09-11T13:25:03+09:00", "utc": "1991-09-11T04:25:03Z", "ms": 684563102909.4982 }, "end": { "local": "1991-09-11T14:13:03+09:00", "utc": "1991-09-11T05:13:03Z", "ms": 684565982909.4982 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-09-12", "window": { "start": { "local": "1991-09-12T13:24:42+09:00", "utc": "1991-09-12T04:24:42Z", "ms": 684649481941.5355 }, "end": { "local": "1991-09-12T14:12:42+09:00", "utc": "1991-09-12T05:12:42Z", "ms": 684652361941.5355 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:53 on Wed 11 Sep to 14:29 on Thu 12 Sep.", "fact": "1991-09-11T05:52:52Z → 1991-09-12T05:29:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:25–14:13 on the 11th, 13:25–14:13 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1008 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Zunyi, 1991: Thursday 12 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Varada caturthi (purvaviddha, madhyahnavyapini), Samvatsari parva (Jain-caturthi paksa), Saubhagya caturthi (Bengal), Ganesa caturthi (madhyahna vyapini and purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-11", "confidence": "determinate" } ], "quote": "In Zunyi, Gaṇeśa Caturthī 1991 falls on Thursday 12 September. Caturthī runs from 14:53 on Wed 11 Sep to 14:29 on Thu 12 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1008, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1991-09-12T14:29:29+09:00", "utc": "1991-09-12T05:29:29Z", "ms": 684653369457.356 }, "end": { "local": "1991-09-13T14:53:25+09:00", "utc": "1991-09-13T05:53:25Z", "ms": 684741204650.272 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-12T14:29:29+09:00", "utc": "1991-09-12T05:29:29Z", "ms": 684653369457.356 }, "end": { "local": "1991-09-13T14:53:25+09:00", "utc": "1991-09-13T05:53:25Z", "ms": 684741204650.272 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-09-12", "window": { "start": { "local": "1991-09-12T13:24:42+09:00", "utc": "1991-09-12T04:24:42Z", "ms": 684649481941.5355 }, "end": { "local": "1991-09-12T14:12:42+09:00", "utc": "1991-09-12T05:12:42Z", "ms": 684652361941.5355 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-09-13", "window": { "start": { "local": "1991-09-13T13:24:21+09:00", "utc": "1991-09-13T04:24:21Z", "ms": 684735860856.261 }, "end": { "local": "1991-09-13T14:12:21+09:00", "utc": "1991-09-13T05:12:21Z", "ms": 684738740856.261 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 14:29 on Thu 12 Sep to 14:53 on Fri 13 Sep.", "fact": "1991-09-12T05:29:29Z → 1991-09-13T05:53:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:25–14:13 on the 12th, 13:24–14:12 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 1008 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Zunyi, 1991: Friday 13 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": "1991-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-13", "confidence": "boundary" } ], "quote": "In Zunyi, Ṛṣi Pañcamī 1991 falls on Friday 13 September. Pañcamī runs from 14:29 on Thu 12 Sep to 14:53 on Fri 13 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2464, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1991-09-13T14:53:25+09:00", "utc": "1991-09-13T05:53:25Z", "ms": 684741204650.272 }, "end": { "local": "1991-09-14T16:03:38+09:00", "utc": "1991-09-14T07:03:38Z", "ms": 684831817883.1177 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-13T14:53:25+09:00", "utc": "1991-09-13T05:53:25Z", "ms": 684741204650.272 }, "end": { "local": "1991-09-14T16:03:38+09:00", "utc": "1991-09-14T07:03:38Z", "ms": 684831817883.1177 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-09-13", "window": { "start": { "local": "1991-09-13T13:24:21+09:00", "utc": "1991-09-13T04:24:21Z", "ms": 684735860856.261 }, "end": { "local": "1991-09-13T14:12:21+09:00", "utc": "1991-09-13T05:12:21Z", "ms": 684738740856.261 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-09-14", "window": { "start": { "local": "1991-09-14T13:24:00+09:00", "utc": "1991-09-14T04:24:00Z", "ms": 684822239672.0156 }, "end": { "local": "1991-09-14T14:12:00+09:00", "utc": "1991-09-14T05:12:00Z", "ms": 684825119672.0156 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 14:53 on Fri 13 Sep to 16:04 on Sat 14 Sep.", "fact": "1991-09-13T05:53:25Z → 1991-09-14T07:03:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:24–14:12 on the 13th, 13:24–14:12 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2464 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Zunyi, 1991: Saturday 14 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": "1991-09-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-14", "confidence": "determinate" } ], "quote": "In Zunyi, Sūrya Ṣaṣṭhī (Bhādrapada) 1991 falls on Saturday 14 September. Ṣaṣṭhī runs from 14:53 on Fri 13 Sep to 16:04 on Sat 14 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6698, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1991-09-14T16:03:38+09:00", "utc": "1991-09-14T07:03:38Z", "ms": 684831817883.1177 }, "end": { "local": "1991-09-15T16:54:10+08:00", "utc": "1991-09-15T08:54:10Z", "ms": 684924850407.8906 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-14T16:03:38+09:00", "utc": "1991-09-14T07:03:38Z", "ms": 684831817883.1177 }, "end": { "local": "1991-09-15T16:54:10+08:00", "utc": "1991-09-15T08:54:10Z", "ms": 684924850407.8906 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-09-14", "window": { "start": { "local": "1991-09-14T13:24:00+09:00", "utc": "1991-09-14T04:24:00Z", "ms": 684822239672.0156 }, "end": { "local": "1991-09-14T14:12:00+09:00", "utc": "1991-09-14T05:12:00Z", "ms": 684825119672.0156 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-09-15", "window": { "start": { "local": "1991-09-15T12:23:38+08:00", "utc": "1991-09-15T04:23:38Z", "ms": 684908618406.9275 }, "end": { "local": "1991-09-15T13:11:38+08:00", "utc": "1991-09-15T05:11:38Z", "ms": 684911498406.9275 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 16:04 on Sat 14 Sep to 16:54 on Sun 15 Sep.", "fact": "1991-09-14T07:03:38Z → 1991-09-15T08:54:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 13:24–14:12 on the 14th, 12:24–13:12 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6698 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Zunyi, 1991: Sunday 15 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": "1991-09-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-15", "confidence": "determinate" } ], "quote": "In Zunyi, Muktābharaṇa Vrata 1991 falls on Sunday 15 September. Saptamī runs from 16:04 on Sat 14 Sep to 16:54 on Sun 15 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13352, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1991-09-15T16:54:10+08:00", "utc": "1991-09-15T08:54:10Z", "ms": 684924850407.8906 }, "end": { "local": "1991-09-16T19:14:09+08:00", "utc": "1991-09-16T11:14:09Z", "ms": 685019649177.165 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-15T16:54:10+08:00", "utc": "1991-09-15T08:54:10Z", "ms": 684924850407.8906 }, "end": { "local": "1991-09-16T19:14:09+08:00", "utc": "1991-09-16T11:14:09Z", "ms": 685019649177.165 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-09-15", "window": { "start": { "local": "1991-09-15T12:23:38+08:00", "utc": "1991-09-15T04:23:38Z", "ms": 684908618406.9275 }, "end": { "local": "1991-09-15T13:11:38+08:00", "utc": "1991-09-15T05:11:38Z", "ms": 684911498406.9275 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-09-16", "window": { "start": { "local": "1991-09-16T12:23:17+08:00", "utc": "1991-09-16T04:23:17Z", "ms": 684994997080.0769 }, "end": { "local": "1991-09-16T13:11:17+08:00", "utc": "1991-09-16T05:11:17Z", "ms": 684997877080.0769 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 16:54 on Sun 15 Sep to 19:14 on Mon 16 Sep.", "fact": "1991-09-15T08:54:10Z → 1991-09-16T11:14:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 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": "Aṣṭamī 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13352 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Zunyi, 1991: Monday 16 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": "1991-09-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-16", "confidence": "determinate" } ], "quote": "In Zunyi, Rādhāṣṭamī 1991 falls on Monday 16 September. Aṣṭamī runs from 16:54 on Sun 15 Sep to 19:14 on Mon 16 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-09-19", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14307, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-09-19T00:22:57+08:00", "utc": "1991-09-18T16:22:57Z", "ms": 685210976553.6049 }, "end": { "local": "1991-09-20T02:41:14+08:00", "utc": "1991-09-19T18:41:14Z", "ms": 685305674493.2451 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-19T00:22:57+08:00", "utc": "1991-09-18T16:22:57Z", "ms": 685210976553.6049 }, "end": { "local": "1991-09-20T02:41:14+08:00", "utc": "1991-09-19T18:41:14Z", "ms": 685305674493.2451 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-09-19", "window": { "start": { "local": "1991-09-19T06:39:14+08:00", "utc": "1991-09-18T22:39:14Z", "ms": 685233554457.4956 }, "end": { "local": "1991-09-19T06:39:14+08:00", "utc": "1991-09-18T22:39:14Z", "ms": 685233554457.4956 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-09-20", "window": { "start": { "local": "1991-09-20T06:39:42+08:00", "utc": "1991-09-19T22:39:42Z", "ms": 685319981969.8513 }, "end": { "local": "1991-09-20T06:39:42+08:00", "utc": "1991-09-19T22:39:42Z", "ms": 685319981969.8513 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:23 on Thu 19 Sep to 02:41 on Fri 20 Sep.", "fact": "1991-09-18T16:22:57Z → 1991-09-19T18:41:14Z" }, { "step": "kaala", "text": "Sunrise is at 06:39 on the 19th and 06:40 on the 20th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 19th and is not on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14307 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Zunyi, 1991: Thursday 19 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": "1991-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-19", "confidence": "determinate" } ], "quote": "In Zunyi, Parivartanī Ekādaśī 1991 falls on Thursday 19 September. Ekādaśī runs from 00:23 on Thu 19 Sep to 02:41 on Fri 20 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-09-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28127, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1991-09-20T02:41:14+08:00", "utc": "1991-09-19T18:41:14Z", "ms": 685305674493.2451 }, "end": { "local": "1991-09-21T04:32:43+08:00", "utc": "1991-09-20T20:32:43Z", "ms": 685398763228.004 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-20T02:41:14+08:00", "utc": "1991-09-19T18:41:14Z", "ms": 685305674493.2451 }, "end": { "local": "1991-09-21T04:32:43+08:00", "utc": "1991-09-20T20:32:43Z", "ms": 685398763228.004 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-09-20", "window": { "start": { "local": "1991-09-20T12:21:52+08:00", "utc": "1991-09-20T04:21:52Z", "ms": 685340511557.5311 }, "end": { "local": "1991-09-20T13:09:52+08:00", "utc": "1991-09-20T05:09:52Z", "ms": 685343391557.5311 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-09-21", "window": { "start": { "local": "1991-09-21T12:21:30+08:00", "utc": "1991-09-21T04:21:30Z", "ms": 685426890228.5295 }, "end": { "local": "1991-09-21T13:09:30+08:00", "utc": "1991-09-21T05:09:30Z", "ms": 685429770228.5295 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 02:41 on Fri 20 Sep to 04:33 on Sat 21 Sep.", "fact": "1991-09-19T18:41:14Z → 1991-09-20T20:32:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 20th, 12:22–13:10 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 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 28127 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Zunyi, 1991: Friday 20 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": "1991-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-20", "confidence": "determinate" } ], "quote": "In Zunyi, Vāmana Jayantī 1991 falls on Friday 20 September. Dvādaśī runs from 02:41 on Fri 20 Sep to 04:33 on Sat 21 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/pradosha-vrata?on=1991-09-21", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29177, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-09-21T04:32:43+08:00", "utc": "1991-09-20T20:32:43Z", "ms": 685398763228.004 }, "end": { "local": "1991-09-22T05:50:38+08:00", "utc": "1991-09-21T21:50:38Z", "ms": 685489837563.7334 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-21T04:32:43+08:00", "utc": "1991-09-20T20:32:43Z", "ms": 685398763228.004 }, "end": { "local": "1991-09-22T05:50:38+08:00", "utc": "1991-09-21T21:50:38Z", "ms": 685489837563.7334 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-09-20", "window": { "start": { "local": "1991-09-20T18:52:01+08:00", "utc": "1991-09-20T10:52:01Z", "ms": 685363921145.2109 }, "end": { "local": "1991-09-20T20:26:26+08:00", "utc": "1991-09-20T12:26:26Z", "ms": 685369586266.3381 } }, "covered_min": 0, "window_min": 94, "qualifies": false }, { "local_date": "1991-09-21", "window": { "start": { "local": "1991-09-21T18:50:51+08:00", "utc": "1991-09-21T10:50:51Z", "ms": 685450250903.3943 }, "end": { "local": "1991-09-21T20:25:29+08:00", "utc": "1991-09-21T12:25:29Z", "ms": 685455929079.6483 } }, "covered_min": 95, "window_min": 95, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:33 on Sat 21 Sep to 05:51 on Sun 22 Sep.", "fact": "1991-09-20T20:32:43Z → 1991-09-21T21:50:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:26 on the 20th, 18:51–20:25 on the 21st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 94 minutes on the 20th and 95 of 95 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29177 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Saturday 21 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-21", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Saturday 21 September. Trayodaśī runs from 04:33 on Sat 21 Sep to 05:51 on Sun 22 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-09-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 508, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-09-22T05:50:38+08:00", "utc": "1991-09-21T21:50:38Z", "ms": 685489837563.7334 }, "end": { "local": "1991-09-23T06:32:37+08:00", "utc": "1991-09-22T22:32:37Z", "ms": 685578757176.9828 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1991-09-22T05:50:38+08:00", "utc": "1991-09-21T21:50:38Z", "ms": 685489837563.7334 }, "end": { "local": "1991-09-23T06:32:37+08:00", "utc": "1991-09-22T22:32:37Z", "ms": 685578757176.9828 } }, "kaala": "udaya-3", "days": [ { "local_date": "1991-09-22", "window": { "start": { "local": "1991-09-22T06:40:37+08:00", "utc": "1991-09-21T22:40:37Z", "ms": 685492837225.2999 }, "end": { "local": "1991-09-22T09:06:26+08:00", "utc": "1991-09-22T01:06:26Z", "ms": 685501585920.8887 } }, "covered_min": 146, "window_min": 146, "qualifies": true }, { "local_date": "1991-09-23", "window": { "start": { "local": "1991-09-23T06:41:05+08:00", "utc": "1991-09-22T22:41:05Z", "ms": 685579265001.8715 }, "end": { "local": "1991-09-23T09:06:34+08:00", "utc": "1991-09-23T01:06:34Z", "ms": 685587994116.2357 } }, "covered_min": 0, "window_min": 145, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:51 on Sun 22 Sep to 06:33 on Mon 23 Sep.", "fact": "1991-09-21T21:50:38Z → 1991-09-22T22:32:37Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:41–09:06 on the 22nd, 06:41–09:07 on the 23rd.", "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 146 of 146 minutes on the 22nd and 0 of 145 on the 23rd.", "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 508 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Zunyi, 1991: Sunday 22 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ananta-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Ananta caturdasi (covering three muhurtas from sunrise, but one muhurta in Bengal)." } ], "not_evaluated": "In Bengal the row asks for one muhūrta from sunrise; that reading is not applied.", "kaala": "udaya-3", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-22", "confidence": "determinate" } ], "quote": "In Zunyi, Ananta Caturdaśī 1991 falls on Sunday 22 September. Caturdaśī runs from 05:51 on Sun 22 Sep to 06:33 on Mon 23 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-09-27", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21989, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-09-27T04:16:25+08:00", "utc": "1991-09-26T20:16:25Z", "ms": 685916184535.4777 }, "end": { "local": "1991-09-28T02:50:10+08:00", "utc": "1991-09-27T18:50:10Z", "ms": 685997409952.1394 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-09-27T04:16:25+08:00", "utc": "1991-09-26T20:16:25Z", "ms": 685916184535.4777 }, "end": { "local": "1991-09-28T02:50:10+08:00", "utc": "1991-09-27T18:50:10Z", "ms": 685997409952.1394 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-09-26", "window": { "start": { "local": "1991-09-26T19:59:37+08:00", "utc": "1991-09-26T11:59:37Z", "ms": 685886377297.8363 }, "end": { "local": "1991-09-26T19:59:37+08:00", "utc": "1991-09-26T11:59:37Z", "ms": 685886377297.8363 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-09-27", "window": { "start": { "local": "1991-09-27T20:43:41+08:00", "utc": "1991-09-27T12:43:41Z", "ms": 685975421440.2673 }, "end": { "local": "1991-09-27T20:43:41+08:00", "utc": "1991-09-27T12:43:41Z", "ms": 685975421440.2673 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:16 on Fri 27 Sep to 02:50 on Sat 28 Sep.", "fact": "1991-09-26T20:16:25Z → 1991-09-27T18:50:10Z" }, { "step": "kaala", "text": "Moonrise is at 20:00 on the 26th and 20:44 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 26th and is on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21989 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Friday 27 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": "1991-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-27", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Friday 27 September. Caturthī runs from 04:16 on Fri 27 Sep to 02:50 on Sat 28 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-09-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3219, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1991-09-29T01:11:54+08:00", "utc": "1991-09-28T17:11:54Z", "ms": 686077913711.5466 }, "end": { "local": "1991-09-29T23:24:23+08:00", "utc": "1991-09-29T15:24:23Z", "ms": 686157863335.127 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-09-29T01:11:54+08:00", "utc": "1991-09-28T17:11:54Z", "ms": 686077913711.5466 }, "end": { "local": "1991-09-29T23:24:23+08:00", "utc": "1991-09-29T15:24:23Z", "ms": 686157863335.127 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-09-28", "window": { "start": { "local": "1991-09-28T21:33:59+08:00", "utc": "1991-09-28T13:33:59Z", "ms": 686064838844.5858 }, "end": { "local": "1991-09-28T21:33:59+08:00", "utc": "1991-09-28T13:33:59Z", "ms": 686064838844.5858 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-09-29", "window": { "start": { "local": "1991-09-29T22:30:44+08:00", "utc": "1991-09-29T14:30:44Z", "ms": 686154644141.9492 }, "end": { "local": "1991-09-29T22:30:44+08:00", "utc": "1991-09-29T14:30:44Z", "ms": 686154644141.9492 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 01:12 on Sun 29 Sep to 23:24 on Sun 29 Sep.", "fact": "1991-09-28T17:11:54Z → 1991-09-29T15:24:23Z" }, { "step": "kaala", "text": "Moonrise is at 21:34 on the 28th and 22:31 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī 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. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3219 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Zunyi, 1991: Sunday 29 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chandra-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-29", "confidence": "determinate" } ], "quote": "In Zunyi, Candra Ṣaṣṭhī 1991 falls on Sunday 29 September. Ṣaṣṭhī runs from 01:12 on Sun 29 Sep to 23:24 on Sun 29 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-09-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7409, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1991-09-30T21:29:27+08:00", "utc": "1991-09-30T13:29:27Z", "ms": 686237366869.0476 }, "end": { "local": "1991-10-01T19:28:14+08:00", "utc": "1991-10-01T11:28:14Z", "ms": 686316494235.0035 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-09-30T21:29:27+08:00", "utc": "1991-09-30T13:29:27Z", "ms": 686237366869.0476 }, "end": { "local": "1991-10-01T19:28:14+08:00", "utc": "1991-10-01T11:28:14Z", "ms": 686316494235.0035 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-09-30", "window": { "start": { "local": "1991-09-30T23:32:56+08:00", "utc": "1991-09-30T15:32:56Z", "ms": 686244776248.997 }, "end": { "local": "1991-09-30T23:32:56+08:00", "utc": "1991-09-30T15:32:56Z", "ms": 686244776248.997 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-10-01", "window": { "start": { "local": "1991-10-02T00:38:27+08:00", "utc": "1991-10-01T16:38:27Z", "ms": 686335106786.8694 }, "end": { "local": "1991-10-02T00:38:27+08:00", "utc": "1991-10-01T16:38:27Z", "ms": 686335106786.8694 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 21:29 on Mon 30 Sep to 19:28 on Tue 1 Oct.", "fact": "1991-09-30T13:29:27Z → 1991-10-01T11:28:14Z" }, { "step": "kaala", "text": "Moonrise is at 23:33 on the 30th and 00:38 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 30th and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7409 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Zunyi, 1991: Monday 30 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalakshmi-vrata-samapana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-09-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-09-30", "confidence": "determinate" } ], "quote": "In Zunyi, Mahālakṣmī Vrata Samāpana 1991 falls on Monday 30 September. Aṣṭamī runs from 21:29 on Mon 30 Sep to 19:28 on Tue 1 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2870, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1991-09-30T21:29:27+08:00", "utc": "1991-09-30T13:29:27Z", "ms": 686237366869.0476 }, "end": { "local": "1991-10-01T19:28:14+08:00", "utc": "1991-10-01T11:28:14Z", "ms": 686316494235.0035 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-09-30T21:29:27+08:00", "utc": "1991-09-30T13:29:27Z", "ms": 686237366869.0476 }, "end": { "local": "1991-10-01T19:28:14+08:00", "utc": "1991-10-01T11:28:14Z", "ms": 686316494235.0035 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-09-30", "window": { "start": { "local": "1991-09-30T18:40:24+08:00", "utc": "1991-09-30T10:40:24Z", "ms": 686227224135.0448 }, "end": { "local": "1991-09-30T20:17:00+08:00", "utc": "1991-09-30T12:17:00Z", "ms": 686233020006.4318 } }, "covered_min": 0, "window_min": 97, "qualifies": false }, { "local_date": "1991-10-01", "window": { "start": { "local": "1991-10-01T18:39:16+08:00", "utc": "1991-10-01T10:39:16Z", "ms": 686313555640.8184 }, "end": { "local": "1991-10-01T20:16:05+08:00", "utc": "1991-10-01T12:16:05Z", "ms": 686319364581.4087 } }, "covered_min": 49, "window_min": 97, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 21:29 on Mon 30 Sep to 19:28 on Tue 1 Oct.", "fact": "1991-09-30T13:29:27Z → 1991-10-01T11:28:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:40–20:17 on the 30th, 18:39–20:16 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 0 of 97 minutes on the 30th and 49 of 97 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2870 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Zunyi, 1991: Tuesday 1 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "jitashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-01", "confidence": "determinate" } ], "quote": "In Zunyi, Jitāṣṭamī (Jitiya) 1991 falls on Tuesday 1 October. Aṣṭamī runs from 21:29 on Mon 30 Sep to 19:28 on Tue 1 Oct and covers 49 of 97 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-10-04", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22442, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-10-03T15:11:42+08:00", "utc": "1991-10-03T07:11:42Z", "ms": 686473902461.2161 }, "end": { "local": "1991-10-04T13:00:25+08:00", "utc": "1991-10-04T05:00:25Z", "ms": 686552425069.5242 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-03T15:11:42+08:00", "utc": "1991-10-03T07:11:42Z", "ms": 686473902461.2161 }, "end": { "local": "1991-10-04T13:00:25+08:00", "utc": "1991-10-04T05:00:25Z", "ms": 686552425069.5242 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-10-03", "window": { "start": { "local": "1991-10-03T06:45:52+08:00", "utc": "1991-10-02T22:45:52Z", "ms": 686443552491.5621 }, "end": { "local": "1991-10-03T06:45:52+08:00", "utc": "1991-10-02T22:45:52Z", "ms": 686443552491.5621 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-10-04", "window": { "start": { "local": "1991-10-04T06:46:23+08:00", "utc": "1991-10-03T22:46:23Z", "ms": 686529982570.2394 }, "end": { "local": "1991-10-04T06:46:23+08:00", "utc": "1991-10-03T22:46:23Z", "ms": 686529982570.2394 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:12 on Thu 3 Oct to 13:00 on Fri 4 Oct.", "fact": "1991-10-03T07:11:42Z → 1991-10-04T05:00:25Z" }, { "step": "kaala", "text": "Sunrise is at 06:46 on the 3rd and 06:46 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 3rd and is on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22442 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Zunyi, 1991: Friday 4 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-04", "confidence": "determinate" } ], "quote": "In Zunyi, Indirā Ekādaśī 1991 falls on Friday 4 October. Ekādaśī runs from 15:12 on Thu 3 Oct to 13:00 on Fri 4 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-10-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-10-05", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27781, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-10-05T10:51:44+08:00", "utc": "1991-10-05T02:51:44Z", "ms": 686631104324.3583 }, "end": { "local": "1991-10-06T08:50:51+08:00", "utc": "1991-10-06T00:50:51Z", "ms": 686710250620.9219 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-05T10:51:44+08:00", "utc": "1991-10-05T02:51:44Z", "ms": 686631104324.3583 }, "end": { "local": "1991-10-06T08:50:51+08:00", "utc": "1991-10-06T00:50:51Z", "ms": 686710250620.9219 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-10-05", "window": { "start": { "local": "1991-10-05T18:34:45+08:00", "utc": "1991-10-05T10:34:45Z", "ms": 686658885309.7507 }, "end": { "local": "1991-10-05T20:12:26+08:00", "utc": "1991-10-05T12:12:26Z", "ms": 686664746416.7092 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "1991-10-06", "window": { "start": { "local": "1991-10-06T18:33:39+08:00", "utc": "1991-10-06T10:33:39Z", "ms": 686745218770.8076 }, "end": { "local": "1991-10-06T20:11:33+08:00", "utc": "1991-10-06T12:11:33Z", "ms": 686751092880.1803 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:52 on Sat 5 Oct to 08:51 on Sun 6 Oct.", "fact": "1991-10-05T02:51:44Z → 1991-10-06T00:50:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:35–20:12 on the 5th, 18:34–20:12 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 98 of 98 minutes on the 5th and 0 of 98 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27781 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Saturday 5 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-05", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Saturday 5 October. Trayodaśī runs from 10:52 on Sat 5 Oct to 08:51 on Sun 6 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-10-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shivaratri?on=1991-10-06", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21561, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-10-06T08:50:51+08:00", "utc": "1991-10-06T00:50:51Z", "ms": 686710250620.9219 }, "end": { "local": "1991-10-07T07:04:08+08:00", "utc": "1991-10-06T23:04:08Z", "ms": 686790247606.7728 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-06T08:50:51+08:00", "utc": "1991-10-06T00:50:51Z", "ms": 686710250620.9219 }, "end": { "local": "1991-10-07T07:04:08+08:00", "utc": "1991-10-06T23:04:08Z", "ms": 686790247606.7728 } }, "kaala": "nishita", "days": [ { "local_date": "1991-10-05", "window": { "start": { "local": "1991-10-06T00:17:04+08:00", "utc": "1991-10-05T16:17:04Z", "ms": 686679424460.8451 }, "end": { "local": "1991-10-06T01:05:04+08:00", "utc": "1991-10-05T17:05:04Z", "ms": 686682304460.8451 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-10-06", "window": { "start": { "local": "1991-10-07T00:16:47+08:00", "utc": "1991-10-06T16:16:47Z", "ms": 686765806680.9553 }, "end": { "local": "1991-10-07T01:04:47+08:00", "utc": "1991-10-06T17:04:47Z", "ms": 686768686680.9553 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:51 on Sun 6 Oct to 07:04 on Mon 7 Oct.", "fact": "1991-10-06T00:50:51Z → 1991-10-06T23:04:08Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:17–01:05 on the 5th, 00:17–01:05 on the 6th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21561 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Sunday 6 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-06", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Sunday 6 October. Caturdaśī runs from 08:51 on Sun 6 Oct to 07:04 on Mon 7 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-10-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24394, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1991-10-07T07:04:08+08:00", "utc": "1991-10-06T23:04:08Z", "ms": 686790247606.7728 }, "end": { "local": "1991-10-08T05:38:48+08:00", "utc": "1991-10-07T21:38:48Z", "ms": 686871528473.2539 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-07T07:04:08+08:00", "utc": "1991-10-06T23:04:08Z", "ms": 686790247606.7728 }, "end": { "local": "1991-10-08T05:38:48+08:00", "utc": "1991-10-07T21:38:48Z", "ms": 686871528473.2539 } }, "kaala": "aparahna", "days": [ { "local_date": "1991-10-07", "window": { "start": { "local": "1991-10-07T13:50:41+08:00", "utc": "1991-10-07T05:50:41Z", "ms": 686814641456.2284 }, "end": { "local": "1991-10-07T16:11:37+08:00", "utc": "1991-10-07T08:11:37Z", "ms": 686823097077.9369 } }, "covered_min": 141, "window_min": 141, "qualifies": true }, { "local_date": "1991-10-08", "window": { "start": { "local": "1991-10-08T13:50:15+08:00", "utc": "1991-10-08T05:50:15Z", "ms": 686901014626.5308 }, "end": { "local": "1991-10-08T16:10:51+08:00", "utc": "1991-10-08T08:10:51Z", "ms": 686909450873.5895 } }, "covered_min": 0, "window_min": 141, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 07:04 on Mon 7 Oct to 05:39 on Tue 8 Oct.", "fact": "1991-10-06T23:04:08Z → 1991-10-07T21:38:48Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:51–16:12 on the 7th, 13:50–16:11 on the 8th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 141 of 141 minutes on the 7th and 0 of 141 on the 8th.", "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 24394 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Zunyi, 1991: Monday 7 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalaya-amavasya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Mahalaya amavasya (aparahnavyapini)" } ], "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.", "kaala": "aparahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-07", "confidence": "determinate" } ], "quote": "In Zunyi, Mahālaya Amāvāsyā 1991 falls on Monday 7 October. Amāvasyā runs from 07:04 on Mon 7 Oct to 05:39 on Tue 8 Oct and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23828, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1991-10-08T05:38:48+08:00", "utc": "1991-10-07T21:38:48Z", "ms": 686871528473.2539 }, "end": { "local": "1991-10-09T04:42:18+08:00", "utc": "1991-10-08T20:42:18Z", "ms": 686954538168.9331 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-08T05:38:48+08:00", "utc": "1991-10-07T21:38:48Z", "ms": 686871528473.2539 }, "end": { "local": "1991-10-09T04:42:18+08:00", "utc": "1991-10-08T20:42:18Z", "ms": 686954538168.9331 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-10-08", "window": { "start": { "local": "1991-10-08T12:15:57+08:00", "utc": "1991-10-08T04:15:57Z", "ms": 686895356503.0015 }, "end": { "local": "1991-10-08T13:03:57+08:00", "utc": "1991-10-08T05:03:57Z", "ms": 686898236503.0015 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-10-09", "window": { "start": { "local": "1991-10-09T12:15:40+08:00", "utc": "1991-10-09T04:15:40Z", "ms": 686981739779.7769 }, "end": { "local": "1991-10-09T13:03:40+08:00", "utc": "1991-10-09T05:03:40Z", "ms": 686984619779.7769 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 05:39 on Tue 8 Oct to 04:42 on Wed 9 Oct.", "fact": "1991-10-07T21:38:48Z → 1991-10-08T20:42:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:16–13:04 on the 8th, 12:16–13:04 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23828 s" }, { "step": "ruling", "text": "Navarātrārambha, Zunyi, 1991: Tuesday 8 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-08", "confidence": "determinate" } ], "quote": "In Zunyi, Navarātrārambha (Navratri) 1991 falls on Tuesday 8 October. Pratipadā runs from 05:39 on Tue 8 Oct to 04:42 on Wed 9 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vinayaka-chaturthi?on=1991-10-11", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23525, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-10-11T04:40:53+08:00", "utc": "1991-10-10T20:40:53Z", "ms": 687127253409.7213 }, "end": { "local": "1991-10-12T05:42:48+08:00", "utc": "1991-10-11T21:42:48Z", "ms": 687217367545.3953 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-11T04:40:53+08:00", "utc": "1991-10-10T20:40:53Z", "ms": 687127253409.7213 }, "end": { "local": "1991-10-12T05:42:48+08:00", "utc": "1991-10-11T21:42:48Z", "ms": 687217367545.3953 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-10-11", "window": { "start": { "local": "1991-10-11T12:15:08+08:00", "utc": "1991-10-11T04:15:08Z", "ms": 687154507653.3656 }, "end": { "local": "1991-10-11T13:03:08+08:00", "utc": "1991-10-11T05:03:08Z", "ms": 687157387653.3656 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-10-12", "window": { "start": { "local": "1991-10-12T12:14:52+08:00", "utc": "1991-10-12T04:14:52Z", "ms": 687240892282.1638 }, "end": { "local": "1991-10-12T13:02:52+08:00", "utc": "1991-10-12T05:02:52Z", "ms": 687243772282.1638 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:41 on Fri 11 Oct to 05:43 on Sat 12 Oct.", "fact": "1991-10-10T20:40:53Z → 1991-10-11T21:42:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:15–13:03 on the 11th, 12:15–13:03 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23525 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1991: Friday 11 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-11", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1991 falls on Friday 11 October. Caturthī runs from 04:41 on Fri 11 Oct to 05:43 on Sat 12 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-10-11", "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/1991/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7257, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1991-10-14T09:38:51+08:00", "utc": "1991-10-14T01:38:51Z", "ms": 687404331009.6179 }, "end": { "local": "1991-10-15T12:13:06+08:00", "utc": "1991-10-15T04:13:06Z", "ms": 687499986302.4777 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-14T09:38:51+08:00", "utc": "1991-10-14T01:38:51Z", "ms": 687404331009.6179 }, "end": { "local": "1991-10-15T12:13:06+08:00", "utc": "1991-10-15T04:13:06Z", "ms": 687499986302.4777 } }, "kaala": "udaya-1", "days": [ { "local_date": "1991-10-14", "window": { "start": { "local": "1991-10-14T06:51:41+08:00", "utc": "1991-10-13T22:51:41Z", "ms": 687394300634.8649 }, "end": { "local": "1991-10-14T07:37:54+08:00", "utc": "1991-10-13T23:37:54Z", "ms": 687397074284.3883 } }, "covered_min": 0, "window_min": 46, "qualifies": false }, { "local_date": "1991-10-15", "window": { "start": { "local": "1991-10-15T06:52:14+08:00", "utc": "1991-10-14T22:52:14Z", "ms": 687480734320.093 }, "end": { "local": "1991-10-15T07:38:22+08:00", "utc": "1991-10-14T23:38:22Z", "ms": 687483501628.8226 } }, "covered_min": 46, "window_min": 46, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 09:39 on Mon 14 Oct to 12:13 on Tue 15 Oct.", "fact": "1991-10-14T01:38:51Z → 1991-10-15T04:13:06Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:52–07:38 on the 14th, 06:52–07:38 on the 15th.", "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 14th and 46 of 46 on the 15th.", "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 7257 s" }, { "step": "ruling", "text": "Durgā Saptamī, Zunyi, 1991: Tuesday 15 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": "1991-10-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-15", "confidence": "determinate" } ], "quote": "In Zunyi, Durgā Saptamī 1991 falls on Tuesday 15 October. Saptamī runs from 09:39 on Mon 14 Oct to 12:13 on Tue 15 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-16", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 63, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1991-10-15T12:13:06+08:00", "utc": "1991-10-15T04:13:06Z", "ms": 687499986302.4777 }, "end": { "local": "1991-10-16T14:51:35+08:00", "utc": "1991-10-16T06:51:35Z", "ms": 687595895162.1345 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-15T12:13:06+08:00", "utc": "1991-10-15T04:13:06Z", "ms": 687499986302.4777 }, "end": { "local": "1991-10-16T14:51:35+08:00", "utc": "1991-10-16T06:51:35Z", "ms": 687595895162.1345 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-10-15", "window": { "start": { "local": "1991-10-15T12:14:09+08:00", "utc": "1991-10-15T04:14:09Z", "ms": 687500049135.5653 }, "end": { "local": "1991-10-15T13:02:09+08:00", "utc": "1991-10-15T05:02:09Z", "ms": 687502929135.5653 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-10-16", "window": { "start": { "local": "1991-10-16T12:13:56+08:00", "utc": "1991-10-16T04:13:56Z", "ms": 687586435799.353 }, "end": { "local": "1991-10-16T13:01:56+08:00", "utc": "1991-10-16T05:01:56Z", "ms": 687589315799.353 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:13 on Tue 15 Oct to 14:52 on Wed 16 Oct.", "fact": "1991-10-15T04:13:06Z → 1991-10-16T06:51:35Z" }, { "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": "Aṣṭamī must be present during madhyāhna. It covers 48 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": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 63 s < 300 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Zunyi, 1991: Wednesday 16 October.", "fact": "confidence: boundary (margin)" } ], "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": "1991-10-16", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-16", "confidence": "determinate" } ], "quote": "In Zunyi, Mahāṣṭamī (Durga Ashtami) 1991 falls on Wednesday 16 October. Aṣṭamī runs from 12:13 on Tue 15 Oct to 14:52 on Wed 16 Oct and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken. It is 1 min 03 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3865, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1991-10-17T17:17:38+08:00", "utc": "1991-10-17T09:17:38Z", "ms": 687691058146.1597 }, "end": { "local": "1991-10-18T19:16:35+08:00", "utc": "1991-10-18T11:16:35Z", "ms": 687784594874.8425 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "1991-10-17T17:17:38+08:00", "utc": "1991-10-17T09:17:38Z", "ms": 687691058146.1597 }, "end": { "local": "1991-10-18T04:25:44+08:00", "utc": "1991-10-17T20:25:44Z", "ms": 687731143565.6062 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "1991-10-17T01:39:36+08:00", "utc": "1991-10-16T17:39:36Z", "ms": 687634775937.2819 }, "end": { "local": "1991-10-18T04:25:44+08:00", "utc": "1991-10-17T20:25:44Z", "ms": 687731143565.6062 } } }, "kaala": "daytime", "days": [ { "local_date": "1991-10-17", "window": { "start": { "local": "1991-10-17T06:53:23+08:00", "utc": "1991-10-16T22:53:23Z", "ms": 687653602806.3374 }, "end": { "local": "1991-10-17T18:22:03+08:00", "utc": "1991-10-17T10:22:03Z", "ms": 687694923224.0247 } }, "covered_min": 64, "window_min": 689, "qualifies": true }, { "local_date": "1991-10-18", "window": { "start": { "local": "1991-10-18T06:53:58+08:00", "utc": "1991-10-17T22:53:58Z", "ms": 687740037621.9811 }, "end": { "local": "1991-10-18T18:21:04+08:00", "utc": "1991-10-18T10:21:04Z", "ms": 687781263979.5416 } }, "covered_min": 0, "window_min": 687, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 17:18 on Thu 17 Oct to 19:17 on Fri 18 Oct, and Śravaṇa from 01:40 on Thu 17 Oct to 04:26 on Fri 18 Oct. They are together from 17:18 on Thu 17 Oct to 04:26 on Fri 18 Oct.", "fact": "1991-10-17T09:17:38Z → 1991-10-17T20:25:44Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 06:53–18:22 on the 17th, 06:54–18:21 on the 18th.", "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 64 of 689 minutes on the 17th and 0 of 687 on the 18th.", "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 3865 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Zunyi, 1991: Thursday 17 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": "1991-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-17", "confidence": "determinate" } ], "quote": "In Zunyi, Vijayā Daśamī (Dussehra) 1991 falls on Thursday 17 October. Daśamī runs from 17:18 on Thu 17 Oct to 19:17 on Fri 18 Oct and is with Śravaṇa in the day time that day, for 64 minutes.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6579, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1991-10-16T14:51:35+08:00", "utc": "1991-10-16T06:51:35Z", "ms": 687595895162.1345 }, "end": { "local": "1991-10-17T17:17:38+08:00", "utc": "1991-10-17T09:17:38Z", "ms": 687691058146.1597 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-16T14:51:35+08:00", "utc": "1991-10-16T06:51:35Z", "ms": 687595895162.1345 }, "end": { "local": "1991-10-17T17:17:38+08:00", "utc": "1991-10-17T09:17:38Z", "ms": 687691058146.1597 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-10-16", "window": { "start": { "local": "1991-10-16T12:13:56+08:00", "utc": "1991-10-16T04:13:56Z", "ms": 687586435799.353 }, "end": { "local": "1991-10-16T13:01:56+08:00", "utc": "1991-10-16T05:01:56Z", "ms": 687589315799.353 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-10-17", "window": { "start": { "local": "1991-10-17T12:13:43+08:00", "utc": "1991-10-17T04:13:43Z", "ms": 687672823015.181 }, "end": { "local": "1991-10-17T13:01:43+08:00", "utc": "1991-10-17T05:01:43Z", "ms": 687675703015.181 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 14:52 on Wed 16 Oct to 17:18 on Thu 17 Oct.", "fact": "1991-10-16T06:51:35Z → 1991-10-17T09:17:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 16th, 12:14–13:02 on the 17th.", "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 16th and 48 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 6579 s" }, { "step": "ruling", "text": "Mahānavamī, Zunyi, 1991: Thursday 17 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": "1991-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-17", "confidence": "determinate" } ], "quote": "In Zunyi, Mahānavamī 1991 falls on Thursday 17 October. Navamī runs from 14:52 on Wed 16 Oct to 17:18 on Thu 17 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-10-19", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37032, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-10-18T19:16:35+08:00", "utc": "1991-10-18T11:16:35Z", "ms": 687784594874.8425 }, "end": { "local": "1991-10-19T20:37:56+08:00", "utc": "1991-10-19T12:37:56Z", "ms": 687875876013.9171 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-18T19:16:35+08:00", "utc": "1991-10-18T11:16:35Z", "ms": 687784594874.8425 }, "end": { "local": "1991-10-19T20:37:56+08:00", "utc": "1991-10-19T12:37:56Z", "ms": 687875876013.9171 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-10-19", "window": { "start": { "local": "1991-10-19T06:54:33+08:00", "utc": "1991-10-18T22:54:33Z", "ms": 687826472829.122 }, "end": { "local": "1991-10-19T06:54:33+08:00", "utc": "1991-10-18T22:54:33Z", "ms": 687826472829.122 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-10-20", "window": { "start": { "local": "1991-10-20T06:55:08+08:00", "utc": "1991-10-19T22:55:08Z", "ms": 687912908435.2341 }, "end": { "local": "1991-10-20T06:55:08+08:00", "utc": "1991-10-19T22:55:08Z", "ms": 687912908435.2341 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:17 on Fri 18 Oct to 20:38 on Sat 19 Oct.", "fact": "1991-10-18T11:16:35Z → 1991-10-19T12:37:56Z" }, { "step": "kaala", "text": "Sunrise is at 06:55 on the 19th and 06:55 on the 20th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 19th and is not on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 37032 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Zunyi, 1991: Saturday 19 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-19", "confidence": "determinate" } ], "quote": "In Zunyi, Pāśāṅkuśā Ekādaśī 1991 falls on Saturday 19 October. Ekādaśī runs from 19:17 on Fri 18 Oct to 20:38 on Sat 19 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-10-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-10-21", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4330, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-10-20T21:16:22+08:00", "utc": "1991-10-20T13:16:22Z", "ms": 687964581532.8345 }, "end": { "local": "1991-10-21T21:11:27+08:00", "utc": "1991-10-21T13:11:27Z", "ms": 688050686543.9769 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1991-10-20T21:16:22+08:00", "utc": "1991-10-20T13:16:22Z", "ms": 687964581532.8345 }, "end": { "local": "1991-10-21T21:11:27+08:00", "utc": "1991-10-21T13:11:27Z", "ms": 688050686543.9769 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-10-20", "window": { "start": { "local": "1991-10-20T18:19:08+08:00", "utc": "1991-10-20T10:19:08Z", "ms": 687953947870.9576 }, "end": { "local": "1991-10-20T20:00:01+08:00", "utc": "1991-10-20T12:00:01Z", "ms": 687960000747.8906 } }, "covered_min": 0, "window_min": 101, "qualifies": false }, { "local_date": "1991-10-21", "window": { "start": { "local": "1991-10-21T18:18:11+08:00", "utc": "1991-10-21T10:18:11Z", "ms": 688040291064.9855 }, "end": { "local": "1991-10-21T19:59:16+08:00", "utc": "1991-10-21T11:59:16Z", "ms": 688046356373.0034 } }, "covered_min": 101, "window_min": 101, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:16 on Sun 20 Oct to 21:11 on Mon 21 Oct.", "fact": "1991-10-20T13:16:22Z → 1991-10-21T13:11:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:19–20:00 on the 20th, 18:18–19:59 on the 21st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 101 minutes on the 20th and 101 of 101 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4330 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Monday 21 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-21", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Monday 21 October. Trayodaśī runs from 21:16 on Sun 20 Oct to 21:11 on Mon 21 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-10-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26300, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-10-26T13:06:05+08:00", "utc": "1991-10-26T05:06:05Z", "ms": 688453564796.924 }, "end": { "local": "1991-10-27T10:47:28+08:00", "utc": "1991-10-27T02:47:28Z", "ms": 688531648262.3337 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-10-26T13:06:05+08:00", "utc": "1991-10-26T05:06:05Z", "ms": 688453564796.924 }, "end": { "local": "1991-10-27T10:47:28+08:00", "utc": "1991-10-27T02:47:28Z", "ms": 688531648262.3337 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-10-26", "window": { "start": { "local": "1991-10-26T20:24:24+08:00", "utc": "1991-10-26T12:24:24Z", "ms": 688479864333.4945 }, "end": { "local": "1991-10-26T20:24:24+08:00", "utc": "1991-10-26T12:24:24Z", "ms": 688479864333.4945 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-10-27", "window": { "start": { "local": "1991-10-27T21:26:21+08:00", "utc": "1991-10-27T13:26:21Z", "ms": 688569980886.8037 }, "end": { "local": "1991-10-27T21:26:21+08:00", "utc": "1991-10-27T13:26:21Z", "ms": 688569980886.8037 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:06 on Sat 26 Oct to 10:47 on Sun 27 Oct.", "fact": "1991-10-26T05:06:05Z → 1991-10-27T02:47:28Z" }, { "step": "kaala", "text": "Moonrise is at 20:24 on the 26th and 21:26 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26300 s" }, { "step": "ruling", "text": "Karaka Caturthī, Zunyi, 1991: Saturday 26 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "karaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Karaka caturthi (current at moon-rise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-26", "confidence": "determinate" } ], "quote": "In Zunyi, Karaka Caturthī (Karwa Chauth) 1991 falls on Saturday 26 October. Caturthī runs from 13:06 on Sat 26 Oct to 10:47 on Sun 27 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-10-26", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26300, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-10-26T13:06:05+08:00", "utc": "1991-10-26T05:06:05Z", "ms": 688453564796.924 }, "end": { "local": "1991-10-27T10:47:28+08:00", "utc": "1991-10-27T02:47:28Z", "ms": 688531648262.3337 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-10-26T13:06:05+08:00", "utc": "1991-10-26T05:06:05Z", "ms": 688453564796.924 }, "end": { "local": "1991-10-27T10:47:28+08:00", "utc": "1991-10-27T02:47:28Z", "ms": 688531648262.3337 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-10-26", "window": { "start": { "local": "1991-10-26T20:24:24+08:00", "utc": "1991-10-26T12:24:24Z", "ms": 688479864333.4945 }, "end": { "local": "1991-10-26T20:24:24+08:00", "utc": "1991-10-26T12:24:24Z", "ms": 688479864333.4945 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-10-27", "window": { "start": { "local": "1991-10-27T21:26:21+08:00", "utc": "1991-10-27T13:26:21Z", "ms": 688569980886.8037 }, "end": { "local": "1991-10-27T21:26:21+08:00", "utc": "1991-10-27T13:26:21Z", "ms": 688569980886.8037 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:06 on Sat 26 Oct to 10:47 on Sun 27 Oct.", "fact": "1991-10-26T05:06:05Z → 1991-10-27T02:47:28Z" }, { "step": "kaala", "text": "Moonrise is at 20:24 on the 26th and 21:26 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26300 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Saturday 26 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-26", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Saturday 26 October. Caturthī runs from 13:06 on Sat 26 Oct to 10:47 on Sun 27 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-10-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5377, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1991-10-30T04:10:20+08:00", "utc": "1991-10-29T20:10:20Z", "ms": 688767019567.2211 }, "end": { "local": "1991-10-31T02:13:05+08:00", "utc": "1991-10-30T18:13:05Z", "ms": 688846385274.051 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-10-30T04:10:20+08:00", "utc": "1991-10-29T20:10:20Z", "ms": 688767019567.2211 }, "end": { "local": "1991-10-31T02:13:05+08:00", "utc": "1991-10-30T18:13:05Z", "ms": 688846385274.051 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-10-29", "window": { "start": { "local": "1991-10-29T23:38:13+08:00", "utc": "1991-10-29T15:38:13Z", "ms": 688750693392.8824 }, "end": { "local": "1991-10-29T23:38:13+08:00", "utc": "1991-10-29T15:38:13Z", "ms": 688750693392.8824 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-10-30", "window": { "start": { "local": "1991-10-31T00:43:28+08:00", "utc": "1991-10-30T16:43:28Z", "ms": 688841007841.1611 }, "end": { "local": "1991-10-31T00:43:28+08:00", "utc": "1991-10-30T16:43:28Z", "ms": 688841007841.1611 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:10 on Wed 30 Oct to 02:13 on Thu 31 Oct.", "fact": "1991-10-29T20:10:20Z → 1991-10-30T18:13:05Z" }, { "step": "kaala", "text": "Moonrise is at 23:38 on the 29th and 00:43 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5377 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Zunyi, 1991: Wednesday 30 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-10-30", "confidence": "determinate" } ], "quote": "In Zunyi, Ahoyī Aṣṭamī 1991 falls on Wednesday 30 October. Aṣṭamī runs from 04:10 on Wed 30 Oct to 02:13 on Thu 31 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-11-02", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29623, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-11-01T22:49:48+08:00", "utc": "1991-11-01T14:49:48Z", "ms": 689006987954.2721 }, "end": { "local": "1991-11-02T21:26:48+08:00", "utc": "1991-11-02T13:26:48Z", "ms": 689088407676.436 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-01T22:49:48+08:00", "utc": "1991-11-01T14:49:48Z", "ms": 689006987954.2721 }, "end": { "local": "1991-11-02T21:26:48+08:00", "utc": "1991-11-02T13:26:48Z", "ms": 689088407676.436 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-11-02", "window": { "start": { "local": "1991-11-02T07:03:31+08:00", "utc": "1991-11-01T23:03:31Z", "ms": 689036610668.2275 }, "end": { "local": "1991-11-02T07:03:31+08:00", "utc": "1991-11-01T23:03:31Z", "ms": 689036610668.2275 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-11-03", "window": { "start": { "local": "1991-11-03T07:04:12+08:00", "utc": "1991-11-02T23:04:12Z", "ms": 689123052409.1184 }, "end": { "local": "1991-11-03T07:04:12+08:00", "utc": "1991-11-02T23:04:12Z", "ms": 689123052409.1184 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:50 on Fri 1 Nov to 21:27 on Sat 2 Nov.", "fact": "1991-11-01T14:49:48Z → 1991-11-02T13:26:48Z" }, { "step": "kaala", "text": "Sunrise is at 07:04 on the 2nd and 07:04 on the 3rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 2nd and is not on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29623 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Zunyi, 1991: Saturday 2 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-02", "confidence": "determinate" } ], "quote": "In Zunyi, Ramā Ekādaśī 1991 falls on Saturday 2 November. Ekādaśī runs from 22:50 on Fri 1 Nov to 21:27 on Sat 2 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-11-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1707, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1991-11-02T21:26:48+08:00", "utc": "1991-11-02T13:26:48Z", "ms": 689088407676.436 }, "end": { "local": "1991-11-03T20:19:30+08:00", "utc": "1991-11-03T12:19:30Z", "ms": 689170769686.636 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-02T21:26:48+08:00", "utc": "1991-11-02T13:26:48Z", "ms": 689088407676.436 }, "end": { "local": "1991-11-03T20:19:30+08:00", "utc": "1991-11-03T12:19:30Z", "ms": 689170769686.636 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-11-02", "window": { "start": { "local": "1991-11-02T18:08:06+08:00", "utc": "1991-11-02T10:08:06Z", "ms": 689076486050.3593 }, "end": { "local": "1991-11-02T19:51:35+08:00", "utc": "1991-11-02T11:51:35Z", "ms": 689082694898.1938 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1991-11-03", "window": { "start": { "local": "1991-11-03T18:07:23+08:00", "utc": "1991-11-03T10:07:23Z", "ms": 689162842902.9178 }, "end": { "local": "1991-11-03T19:51:03+08:00", "utc": "1991-11-03T11:51:03Z", "ms": 689169063124.9866 } }, "covered_min": 104, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 21:27 on Sat 2 Nov to 20:19 on Sun 3 Nov.", "fact": "1991-11-02T13:26:48Z → 1991-11-03T12:19:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:08–19:52 on the 2nd, 18:07–19:51 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 2nd and 104 of 104 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1707 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Zunyi, 1991: Sunday 3 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govatsa-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-03", "confidence": "determinate" } ], "quote": "In Zunyi, Govatsa Dvādaśī (Vasu Baras) 1991 falls on Sunday 3 November. Dvādaśī runs from 21:27 on Sat 2 Nov to 20:19 on Sun 3 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1142, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-11-03T20:19:30+08:00", "utc": "1991-11-03T12:19:30Z", "ms": 689170769686.636 }, "end": { "local": "1991-11-04T19:31:31+08:00", "utc": "1991-11-04T11:31:31Z", "ms": 689254290766.7849 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-03T20:19:30+08:00", "utc": "1991-11-03T12:19:30Z", "ms": 689170769686.636 }, "end": { "local": "1991-11-04T19:31:31+08:00", "utc": "1991-11-04T11:31:31Z", "ms": 689254290766.7849 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-11-03", "window": { "start": { "local": "1991-11-03T18:07:23+08:00", "utc": "1991-11-03T10:07:23Z", "ms": 689162842902.9178 }, "end": { "local": "1991-11-03T19:51:03+08:00", "utc": "1991-11-03T11:51:03Z", "ms": 689169063124.9866 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "1991-11-04", "window": { "start": { "local": "1991-11-04T18:06:41+08:00", "utc": "1991-11-04T10:06:41Z", "ms": 689249200993.4735 }, "end": { "local": "1991-11-04T19:50:32+08:00", "utc": "1991-11-04T11:50:32Z", "ms": 689255432478.7836 } }, "covered_min": 85, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:19 on Sun 3 Nov to 19:32 on Mon 4 Nov.", "fact": "1991-11-03T12:19:30Z → 1991-11-04T11:31:31Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:51 on the 3rd, 18:07–19:51 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 104 minutes on the 3rd and 85 of 104 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1142 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Zunyi, 1991: Monday 4 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": "1991-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-04", "confidence": "boundary" } ], "quote": "In Zunyi, Yama Dīpadāna 1991 falls on Monday 4 November. Trayodaśī runs from 20:19 on Sun 3 Nov to 19:32 on Mon 4 Nov and covers 85 of 104 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/pradosha-vrata?on=1991-11-04", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1142, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-11-03T20:19:30+08:00", "utc": "1991-11-03T12:19:30Z", "ms": 689170769686.636 }, "end": { "local": "1991-11-04T19:31:31+08:00", "utc": "1991-11-04T11:31:31Z", "ms": 689254290766.7849 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-03T20:19:30+08:00", "utc": "1991-11-03T12:19:30Z", "ms": 689170769686.636 }, "end": { "local": "1991-11-04T19:31:31+08:00", "utc": "1991-11-04T11:31:31Z", "ms": 689254290766.7849 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-11-03", "window": { "start": { "local": "1991-11-03T18:07:23+08:00", "utc": "1991-11-03T10:07:23Z", "ms": 689162842902.9178 }, "end": { "local": "1991-11-03T19:51:03+08:00", "utc": "1991-11-03T11:51:03Z", "ms": 689169063124.9866 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "1991-11-04", "window": { "start": { "local": "1991-11-04T18:06:41+08:00", "utc": "1991-11-04T10:06:41Z", "ms": 689249200993.4735 }, "end": { "local": "1991-11-04T19:50:32+08:00", "utc": "1991-11-04T11:50:32Z", "ms": 689255432478.7836 } }, "covered_min": 85, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:19 on Sun 3 Nov to 19:32 on Mon 4 Nov.", "fact": "1991-11-03T12:19:30Z → 1991-11-04T11:31:31Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:07–19:51 on the 3rd, 18:07–19:51 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 104 minutes on the 3rd and 85 of 104 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1142 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Monday 4 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": "1991-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-04", "confidence": "boundary" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Monday 4 November. Trayodaśī runs from 20:19 on Sun 3 Nov to 19:32 on Mon 4 Nov and covers 85 of 104 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-11-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shivaratri?on=1991-11-04", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16838, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-11-04T19:31:31+08:00", "utc": "1991-11-04T11:31:31Z", "ms": 689254290766.7849 }, "end": { "local": "1991-11-05T19:07:10+08:00", "utc": "1991-11-05T11:07:10Z", "ms": 689339230475.3325 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-04T19:31:31+08:00", "utc": "1991-11-04T11:31:31Z", "ms": 689254290766.7849 }, "end": { "local": "1991-11-05T19:07:10+08:00", "utc": "1991-11-05T11:07:10Z", "ms": 689339230475.3325 } }, "kaala": "nishita", "days": [ { "local_date": "1991-11-04", "window": { "start": { "local": "1991-11-05T00:12:09+08:00", "utc": "1991-11-04T16:12:09Z", "ms": 689271129063.3862 }, "end": { "local": "1991-11-05T01:00:09+08:00", "utc": "1991-11-04T17:00:09Z", "ms": 689274009063.3862 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-11-05", "window": { "start": { "local": "1991-11-06T00:12:10+08:00", "utc": "1991-11-05T16:12:10Z", "ms": 689357530216.258 }, "end": { "local": "1991-11-06T01:00:10+08:00", "utc": "1991-11-05T17:00:10Z", "ms": 689360410216.258 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:32 on Mon 4 Nov to 19:07 on Tue 5 Nov.", "fact": "1991-11-04T11:31:31Z → 1991-11-05T11:07:10Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:12–01:00 on the 4th, 00:12–01:00 on the 5th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16838 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Monday 4 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-04", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Monday 4 November. Caturdaśī runs from 19:32 on Mon 4 Nov to 19:07 on Tue 5 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-11-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35415, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-11-04T19:31:31+08:00", "utc": "1991-11-04T11:31:31Z", "ms": 689254290766.7849 }, "end": { "local": "1991-11-05T19:07:10+08:00", "utc": "1991-11-05T11:07:10Z", "ms": 689339230475.3325 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-04T19:31:31+08:00", "utc": "1991-11-04T11:31:31Z", "ms": 689254290766.7849 }, "end": { "local": "1991-11-05T19:07:10+08:00", "utc": "1991-11-05T11:07:10Z", "ms": 689339230475.3325 } }, "kaala": "arunodaya", "days": [ { "local_date": "1991-11-05", "window": { "start": { "local": "1991-11-05T05:21:46+08:00", "utc": "1991-11-04T21:21:46Z", "ms": 689289705647.9888 }, "end": { "local": "1991-11-05T07:05:37+08:00", "utc": "1991-11-04T23:05:37Z", "ms": 689295937133.2988 } }, "covered_min": 104, "window_min": 104, "qualifies": true }, { "local_date": "1991-11-06", "window": { "start": { "local": "1991-11-06T05:22:17+08:00", "utc": "1991-11-05T21:22:17Z", "ms": 689376137456.4729 }, "end": { "local": "1991-11-06T07:06:20+08:00", "utc": "1991-11-05T23:06:20Z", "ms": 689382380089.2783 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:32 on Mon 4 Nov to 19:07 on Tue 5 Nov.", "fact": "1991-11-04T11:31:31Z → 1991-11-05T11:07:10Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:22–07:06 on the 5th, 05:22–07:06 on the 6th.", "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 104 of 104 minutes on the 5th and 0 of 104 on the 6th.", "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 35415 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Zunyi, 1991: Tuesday 5 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-05", "confidence": "determinate" } ], "quote": "In Zunyi, Naraka Caturdaśī (Choti Diwali) 1991 falls on Tuesday 5 November. Caturdaśī runs from 19:32 on Mon 4 Nov to 19:07 on Tue 5 Nov and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18072, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1991-11-05T19:07:10+08:00", "utc": "1991-11-05T11:07:10Z", "ms": 689339230475.3325 }, "end": { "local": "1991-11-06T19:11:00+08:00", "utc": "1991-11-06T11:11:00Z", "ms": 689425860303.7827 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-05T19:07:10+08:00", "utc": "1991-11-05T11:07:10Z", "ms": 689339230475.3325 }, "end": { "local": "1991-11-06T19:11:00+08:00", "utc": "1991-11-06T11:11:00Z", "ms": 689425860303.7827 } }, "kaala": "nishita", "days": [ { "local_date": "1991-11-05", "window": { "start": { "local": "1991-11-06T00:12:10+08:00", "utc": "1991-11-05T16:12:10Z", "ms": 689357530216.258 }, "end": { "local": "1991-11-06T01:00:10+08:00", "utc": "1991-11-05T17:00:10Z", "ms": 689360410216.258 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-11-06", "window": { "start": { "local": "1991-11-07T00:12:12+08:00", "utc": "1991-11-06T16:12:12Z", "ms": 689443932196.606 }, "end": { "local": "1991-11-07T01:00:12+08:00", "utc": "1991-11-06T17:00:12Z", "ms": 689446812196.606 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 19:07 on Tue 5 Nov to 19:11 on Wed 6 Nov.", "fact": "1991-11-05T11:07:10Z → 1991-11-06T11:11:00Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:12–01:00 on the 5th, 00:12–01:00 on the 6th.", "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 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18072 s" }, { "step": "ruling", "text": "Kālī Pūjā, Zunyi, 1991: Tuesday 5 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-05", "confidence": "determinate" } ], "quote": "In Zunyi, Kālī Pūjā 1991 falls on Tuesday 5 November. Amāvasyā runs from 19:07 on Tue 5 Nov to 19:11 on Wed 6 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-06", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2314, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1991-11-05T19:07:10+08:00", "utc": "1991-11-05T11:07:10Z", "ms": 689339230475.3325 }, "end": { "local": "1991-11-06T19:11:00+08:00", "utc": "1991-11-06T11:11:00Z", "ms": 689425860303.7827 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-05T19:07:10+08:00", "utc": "1991-11-05T11:07:10Z", "ms": 689339230475.3325 }, "end": { "local": "1991-11-06T19:11:00+08:00", "utc": "1991-11-06T11:11:00Z", "ms": 689425860303.7827 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-11-05", "window": { "start": { "local": "1991-11-05T18:06:00+08:00", "utc": "1991-11-05T10:06:00Z", "ms": 689335560343.2378 }, "end": { "local": "1991-11-05T19:50:03+08:00", "utc": "1991-11-05T11:50:03Z", "ms": 689341802976.0432 } }, "covered_min": 43, "window_min": 104, "qualifies": true }, { "local_date": "1991-11-06", "window": { "start": { "local": "1991-11-06T18:05:21+08:00", "utc": "1991-11-06T10:05:21Z", "ms": 689421920972.6395 }, "end": { "local": "1991-11-06T19:49:35+08:00", "utc": "1991-11-06T11:49:35Z", "ms": 689428174632.3639 } }, "covered_min": 66, "window_min": 104, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 19:07 on Tue 5 Nov to 19:11 on Wed 6 Nov.", "fact": "1991-11-05T11:07:10Z → 1991-11-06T11:11:00Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:06–19:50 on the 5th, 18:05–19:50 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 43 of 104 minutes on the 5th and 66 of 104 on the 6th.", "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 2314 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Zunyi, 1991: Wednesday 6 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1991-11-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-05", "confidence": "boundary" } ], "quote": "In Zunyi, Lakṣmī Pūjā (Diwali) 1991 falls on Wednesday 6 November. Amāvasyā runs from 19:07 on Tue 5 Nov to 19:11 on Wed 6 Nov and covers 66 of 104 minutes of pradoṣa that evening. It also reaches the previous evening for 43 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/1991/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/1991/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22270, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1991-11-06T19:11:00+08:00", "utc": "1991-11-06T11:11:00Z", "ms": 689425860303.7827 }, "end": { "local": "1991-11-07T19:46:56+08:00", "utc": "1991-11-07T11:46:56Z", "ms": 689514416213.3193 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-06T19:11:00+08:00", "utc": "1991-11-06T11:11:00Z", "ms": 689425860303.7827 }, "end": { "local": "1991-11-07T19:46:56+08:00", "utc": "1991-11-07T11:46:56Z", "ms": 689514416213.3193 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-11-06", "window": { "start": { "local": "1991-11-06T12:11:51+08:00", "utc": "1991-11-06T04:11:51Z", "ms": 689400710530.959 }, "end": { "local": "1991-11-06T12:59:51+08:00", "utc": "1991-11-06T04:59:51Z", "ms": 689403590530.959 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-11-07", "window": { "start": { "local": "1991-11-07T12:11:53+08:00", "utc": "1991-11-07T04:11:53Z", "ms": 689487113161.0643 }, "end": { "local": "1991-11-07T12:59:53+08:00", "utc": "1991-11-07T04:59:53Z", "ms": 689489993161.0643 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 19:11 on Wed 6 Nov to 19:47 on Thu 7 Nov.", "fact": "1991-11-06T11:11:00Z → 1991-11-07T11:46:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 6th, 12:12–13:00 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 22270 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Zunyi, 1991: Thursday 7 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": "1991-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-07", "confidence": "determinate" } ], "quote": "In Zunyi, Govardhana Pūjā 1991 falls on Thursday 7 November. Pratipadā runs from 19:11 on Wed 6 Nov to 19:47 on Thu 7 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-07", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 131, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1991-11-06T19:11:00+08:00", "utc": "1991-11-06T11:11:00Z", "ms": 689425860303.7827 }, "end": { "local": "1991-11-07T19:46:56+08:00", "utc": "1991-11-07T11:46:56Z", "ms": 689514416213.3193 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-06T19:11:00+08:00", "utc": "1991-11-06T11:11:00Z", "ms": 689425860303.7827 }, "end": { "local": "1991-11-07T19:46:56+08:00", "utc": "1991-11-07T11:46:56Z", "ms": 689514416213.3193 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-11-06", "window": { "start": { "local": "1991-11-06T18:05:21+08:00", "utc": "1991-11-06T10:05:21Z", "ms": 689421920972.6395 }, "end": { "local": "1991-11-06T19:49:35+08:00", "utc": "1991-11-06T11:49:35Z", "ms": 689428174632.3639 } }, "covered_min": 39, "window_min": 104, "qualifies": true }, { "local_date": "1991-11-07", "window": { "start": { "local": "1991-11-07T18:04:43+08:00", "utc": "1991-11-07T10:04:43Z", "ms": 689508282901.5564 }, "end": { "local": "1991-11-07T19:49:07+08:00", "utc": "1991-11-07T11:49:07Z", "ms": 689514547462.712 } }, "covered_min": 102, "window_min": 104, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 19:11 on Wed 6 Nov to 19:47 on Thu 7 Nov.", "fact": "1991-11-06T11:11:00Z → 1991-11-07T11:46:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:05–19:50 on the 6th, 18:05–19:49 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 39 of 104 minutes on the 6th and 102 of 104 on the 7th.", "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 131 s < 300 s" }, { "step": "ruling", "text": "Bali Pūjā, Zunyi, 1991: Thursday 7 November.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "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": "1991-11-07", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-07", "confidence": "boundary" } ], "quote": "In Zunyi, Bali Pūjā 1991 falls on Thursday 7 November. Pratipadā runs from 19:11 on Wed 6 Nov to 19:47 on Thu 7 Nov and covers 102 of 104 minutes of pradoṣa that evening. It also reaches the previous evening for 39 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 2 min 11 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30300, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1991-11-06T19:11:00+08:00", "utc": "1991-11-06T11:11:00Z", "ms": 689425860303.7827 }, "end": { "local": "1991-11-07T19:46:56+08:00", "utc": "1991-11-07T11:46:56Z", "ms": 689514416213.3193 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-06T19:11:00+08:00", "utc": "1991-11-06T11:11:00Z", "ms": 689425860303.7827 }, "end": { "local": "1991-11-07T19:46:56+08:00", "utc": "1991-11-07T11:46:56Z", "ms": 689514416213.3193 } }, "kaala": "purvahna", "days": [ { "local_date": "1991-11-06", "window": { "start": { "local": "1991-11-06T07:06:20+08:00", "utc": "1991-11-05T23:06:20Z", "ms": 689382380089.2783 }, "end": { "local": "1991-11-06T10:46:00+08:00", "utc": "1991-11-06T02:46:00Z", "ms": 689395560383.732 } }, "covered_min": 0, "window_min": 220, "qualifies": false }, { "local_date": "1991-11-07", "window": { "start": { "local": "1991-11-07T07:07:03+08:00", "utc": "1991-11-06T23:07:03Z", "ms": 689468823420.5723 }, "end": { "local": "1991-11-07T10:46:17+08:00", "utc": "1991-11-07T02:46:17Z", "ms": 689481976580.9003 } }, "covered_min": 219, "window_min": 219, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 19:11 on Wed 6 Nov to 19:47 on Thu 7 Nov.", "fact": "1991-11-06T11:11:00Z → 1991-11-07T11:46:56Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:06–10:46 on the 6th, 07:07–10:46 on the 7th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 0 of 220 minutes on the 6th and 219 of 219 on the 7th.", "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 30300 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Zunyi, 1991: Thursday 7 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": "1991-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-07", "confidence": "determinate" } ], "quote": "In Zunyi, Dyūta Pratipad 1991 falls on Thursday 7 November. Pratipadā runs from 19:11 on Wed 6 Nov to 19:47 on Thu 7 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24423, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1991-11-07T19:46:56+08:00", "utc": "1991-11-07T11:46:56Z", "ms": 689514416213.3193 }, "end": { "local": "1991-11-08T20:57:17+08:00", "utc": "1991-11-08T12:57:17Z", "ms": 689605037144.9342 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-07T19:46:56+08:00", "utc": "1991-11-07T11:46:56Z", "ms": 689514416213.3193 }, "end": { "local": "1991-11-08T20:57:17+08:00", "utc": "1991-11-08T12:57:17Z", "ms": 689605037144.9342 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-11-07", "window": { "start": { "local": "1991-11-07T12:11:53+08:00", "utc": "1991-11-07T04:11:53Z", "ms": 689487113161.0643 }, "end": { "local": "1991-11-07T12:59:53+08:00", "utc": "1991-11-07T04:59:53Z", "ms": 689489993161.0643 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-11-08", "window": { "start": { "local": "1991-11-08T12:11:57+08:00", "utc": "1991-11-08T04:11:57Z", "ms": 689573516629.8633 }, "end": { "local": "1991-11-08T12:59:57+08:00", "utc": "1991-11-08T04:59:57Z", "ms": 689576396629.8633 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 19:47 on Thu 7 Nov to 20:57 on Fri 8 Nov.", "fact": "1991-11-07T11:46:56Z → 1991-11-08T12:57:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 7th, 12:12–13:00 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 24423 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Zunyi, 1991: Friday 8 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": "1991-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-08", "confidence": "determinate" } ], "quote": "In Zunyi, Yama Dvitīyā (Bhai Dooj) 1991 falls on Friday 8 November. Dvitīyā runs from 19:47 on Thu 7 Nov to 20:57 on Fri 8 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34895, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-11-09T22:41:36+08:00", "utc": "1991-11-09T14:41:36Z", "ms": 689697696111.8606 }, "end": { "local": "1991-11-11T00:55:38+08:00", "utc": "1991-11-10T16:55:38Z", "ms": 689792137651.6084 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-09T22:41:36+08:00", "utc": "1991-11-09T14:41:36Z", "ms": 689697696111.8606 }, "end": { "local": "1991-11-11T00:55:38+08:00", "utc": "1991-11-10T16:55:38Z", "ms": 689792137651.6084 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-11-09", "window": { "start": { "local": "1991-11-09T12:12:01+08:00", "utc": "1991-11-09T04:12:01Z", "ms": 689659920938.0302 }, "end": { "local": "1991-11-09T13:00:01+08:00", "utc": "1991-11-09T05:00:01Z", "ms": 689662800938.0302 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-11-10", "window": { "start": { "local": "1991-11-10T12:12:06+08:00", "utc": "1991-11-10T04:12:06Z", "ms": 689746326085.7368 }, "end": { "local": "1991-11-10T13:00:06+08:00", "utc": "1991-11-10T05:00:06Z", "ms": 689749206085.7368 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:42 on Sat 9 Nov to 00:56 on Mon 11 Nov.", "fact": "1991-11-09T14:41:36Z → 1991-11-10T16:55:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 9th, 12:12–13:00 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34895 s" }, { "step": "ruling", "text": "Nāga Caturthī, Zunyi, 1991: Sunday 10 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": "1991-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-10", "confidence": "determinate" } ], "quote": "In Zunyi, Nāga Caturthī 1991 falls on Sunday 10 November. Caturthī runs from 22:42 on Sat 9 Nov to 00:56 on Mon 11 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/vinayaka-chaturthi?on=1991-11-10", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34895, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-11-09T22:41:36+08:00", "utc": "1991-11-09T14:41:36Z", "ms": 689697696111.8606 }, "end": { "local": "1991-11-11T00:55:38+08:00", "utc": "1991-11-10T16:55:38Z", "ms": 689792137651.6084 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-09T22:41:36+08:00", "utc": "1991-11-09T14:41:36Z", "ms": 689697696111.8606 }, "end": { "local": "1991-11-11T00:55:38+08:00", "utc": "1991-11-10T16:55:38Z", "ms": 689792137651.6084 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-11-09", "window": { "start": { "local": "1991-11-09T12:12:01+08:00", "utc": "1991-11-09T04:12:01Z", "ms": 689659920938.0302 }, "end": { "local": "1991-11-09T13:00:01+08:00", "utc": "1991-11-09T05:00:01Z", "ms": 689662800938.0302 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-11-10", "window": { "start": { "local": "1991-11-10T12:12:06+08:00", "utc": "1991-11-10T04:12:06Z", "ms": 689746326085.7368 }, "end": { "local": "1991-11-10T13:00:06+08:00", "utc": "1991-11-10T05:00:06Z", "ms": 689749206085.7368 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:42 on Sat 9 Nov to 00:56 on Mon 11 Nov.", "fact": "1991-11-09T14:41:36Z → 1991-11-10T16:55:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 9th, 12:12–13:00 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34895 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1991: Sunday 10 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": "1991-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-10", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1991 falls on Sunday 10 November. Caturthī runs from 22:42 on Sat 9 Nov to 00:56 on Mon 11 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-11-10", "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/1991/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21494, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1991-11-12T03:30:44+08:00", "utc": "1991-11-11T19:30:44Z", "ms": 689887843716.9913 }, "end": { "local": "1991-11-13T06:14:13+08:00", "utc": "1991-11-12T22:14:13Z", "ms": 689984052963.3068 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-12T03:30:44+08:00", "utc": "1991-11-11T19:30:44Z", "ms": 689887843716.9913 }, "end": { "local": "1991-11-13T06:14:13+08:00", "utc": "1991-11-12T22:14:13Z", "ms": 689984052963.3068 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-11-12", "window": { "start": { "local": "1991-11-12T12:12:19+08:00", "utc": "1991-11-12T04:12:19Z", "ms": 689919138898.1716 }, "end": { "local": "1991-11-12T13:00:19+08:00", "utc": "1991-11-12T05:00:19Z", "ms": 689922018898.1716 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-11-13", "window": { "start": { "local": "1991-11-13T12:12:27+08:00", "utc": "1991-11-13T04:12:27Z", "ms": 690005546560.9446 }, "end": { "local": "1991-11-13T13:00:27+08:00", "utc": "1991-11-13T05:00:27Z", "ms": 690008426560.9446 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 03:31 on Tue 12 Nov to 06:14 on Wed 13 Nov.", "fact": "1991-11-11T19:30:44Z → 1991-11-12T22:14:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 12th, 12:12–13:00 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21494 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Zunyi, 1991: Tuesday 12 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": "1991-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-12", "confidence": "determinate" } ], "quote": "In Zunyi, Sūrya Ṣaṣṭhī (Chhath) 1991 falls on Tuesday 12 November. Ṣaṣṭhī runs from 03:31 on Tue 12 Nov to 06:14 on Wed 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4072, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1991-11-14T08:50:47+08:00", "utc": "1991-11-14T00:50:47Z", "ms": 690079847221.1842 }, "end": { "local": "1991-11-15T11:04:52+08:00", "utc": "1991-11-15T03:04:52Z", "ms": 690174292168.3741 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-14T08:50:47+08:00", "utc": "1991-11-14T00:50:47Z", "ms": 690079847221.1842 }, "end": { "local": "1991-11-15T11:04:52+08:00", "utc": "1991-11-15T03:04:52Z", "ms": 690174292168.3741 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-11-14", "window": { "start": { "local": "1991-11-14T12:12:35+08:00", "utc": "1991-11-14T04:12:35Z", "ms": 690091955059.3042 }, "end": { "local": "1991-11-14T13:00:35+08:00", "utc": "1991-11-14T05:00:35Z", "ms": 690094835059.3042 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-11-15", "window": { "start": { "local": "1991-11-15T12:12:44+08:00", "utc": "1991-11-15T04:12:44Z", "ms": 690178364391.0349 }, "end": { "local": "1991-11-15T13:00:44+08:00", "utc": "1991-11-15T05:00:44Z", "ms": 690181244391.0349 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 08:51 on Thu 14 Nov to 11:05 on Fri 15 Nov.", "fact": "1991-11-14T00:50:47Z → 1991-11-15T03:04:52Z" }, { "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": "Aṣṭamī 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: unstated → only-day · margin 4072 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Zunyi, 1991: Thursday 14 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": "1991-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-14", "confidence": "determinate" } ], "quote": "In Zunyi, Gopāṣṭamī 1991 falls on Thursday 14 November. Aṣṭamī runs from 08:51 on Thu 14 Nov to 11:05 on Fri 15 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1064, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1991-11-15T11:04:52+08:00", "utc": "1991-11-15T03:04:52Z", "ms": 690174292168.3741 }, "end": { "local": "1991-11-16T12:43:11+08:00", "utc": "1991-11-16T04:43:11Z", "ms": 690266590725.4434 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-15T11:04:52+08:00", "utc": "1991-11-15T03:04:52Z", "ms": 690174292168.3741 }, "end": { "local": "1991-11-16T12:43:11+08:00", "utc": "1991-11-16T04:43:11Z", "ms": 690266590725.4434 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-11-15", "window": { "start": { "local": "1991-11-15T12:12:44+08:00", "utc": "1991-11-15T04:12:44Z", "ms": 690178364391.0349 }, "end": { "local": "1991-11-15T13:00:44+08:00", "utc": "1991-11-15T05:00:44Z", "ms": 690181244391.0349 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-11-16", "window": { "start": { "local": "1991-11-16T12:12:55+08:00", "utc": "1991-11-16T04:12:55Z", "ms": 690264774553.4385 }, "end": { "local": "1991-11-16T13:00:55+08:00", "utc": "1991-11-16T05:00:55Z", "ms": 690267654553.4385 } }, "covered_min": 30, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Navamī runs from 11:05 on Fri 15 Nov to 12:43 on Sat 16 Nov.", "fact": "1991-11-15T03:04:52Z → 1991-11-16T04:43:11Z" }, { "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": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 30 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 1064 s" }, { "step": "ruling", "text": "Durgā Navamī, Zunyi, 1991: Friday 15 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": "1991-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-15", "confidence": "determinate" } ], "quote": "In Zunyi, Durgā Navamī 1991 falls on Friday 15 November. Navamī runs from 11:05 on Fri 15 Nov to 12:43 on Sat 16 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 30 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 962, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1991-11-15T11:04:52+08:00", "utc": "1991-11-15T03:04:52Z", "ms": 690174292168.3741 }, "end": { "local": "1991-11-16T12:43:11+08:00", "utc": "1991-11-16T04:43:11Z", "ms": 690266590725.4434 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-15T11:04:52+08:00", "utc": "1991-11-15T03:04:52Z", "ms": 690174292168.3741 }, "end": { "local": "1991-11-16T12:43:11+08:00", "utc": "1991-11-16T04:43:11Z", "ms": 690266590725.4434 } }, "kaala": "purvahna", "days": [ { "local_date": "1991-11-15", "window": { "start": { "local": "1991-11-15T07:13:01+08:00", "utc": "1991-11-14T23:13:01Z", "ms": 690160381373.0046 }, "end": { "local": "1991-11-15T10:48:50+08:00", "utc": "1991-11-15T02:48:50Z", "ms": 690173330051.6914 } }, "covered_min": 0, "window_min": 216, "qualifies": false }, { "local_date": "1991-11-16", "window": { "start": { "local": "1991-11-16T07:13:47+08:00", "utc": "1991-11-15T23:13:47Z", "ms": 690246827223.8235 }, "end": { "local": "1991-11-16T10:49:12+08:00", "utc": "1991-11-16T02:49:12Z", "ms": 690259752110.2335 } }, "covered_min": 215, "window_min": 215, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 11:05 on Fri 15 Nov to 12:43 on Sat 16 Nov.", "fact": "1991-11-15T03:04:52Z → 1991-11-16T04:43:11Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:13–10:49 on the 15th, 07:14–10:49 on the 16th.", "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 216 minutes on the 15th and 215 of 215 on the 16th.", "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 962 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Zunyi, 1991: Saturday 16 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": "1991-11-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-16", "confidence": "determinate" } ], "quote": "In Zunyi, Akṣaya Navamī (Amla Navami) 1991 falls on Saturday 16 November. Navamī runs from 11:05 on Fri 15 Nov to 12:43 on Sat 16 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-11-18", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22926, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-11-17T13:36:39+08:00", "utc": "1991-11-17T05:36:39Z", "ms": 690356199359.3785 }, "end": { "local": "1991-11-18T13:41:17+08:00", "utc": "1991-11-18T05:41:17Z", "ms": 690442877126.7106 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-17T13:36:39+08:00", "utc": "1991-11-17T05:36:39Z", "ms": 690356199359.3785 }, "end": { "local": "1991-11-18T13:41:17+08:00", "utc": "1991-11-18T05:41:17Z", "ms": 690442877126.7106 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-11-17", "window": { "start": { "local": "1991-11-17T07:14:33+08:00", "utc": "1991-11-16T23:14:33Z", "ms": 690333273246.8552 }, "end": { "local": "1991-11-17T07:14:33+08:00", "utc": "1991-11-16T23:14:33Z", "ms": 690333273246.8552 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-11-18", "window": { "start": { "local": "1991-11-18T07:15:19+08:00", "utc": "1991-11-17T23:15:19Z", "ms": 690419719418.6448 }, "end": { "local": "1991-11-18T07:15:19+08:00", "utc": "1991-11-17T23:15:19Z", "ms": 690419719418.6448 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:37 on Sun 17 Nov to 13:41 on Mon 18 Nov.", "fact": "1991-11-17T05:36:39Z → 1991-11-18T05:41:17Z" }, { "step": "kaala", "text": "Sunrise is at 07:15 on the 17th and 07:15 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 17th and is on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22926 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Zunyi, 1991: Monday 18 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-11-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-18", "confidence": "determinate" } ], "quote": "In Zunyi, Prabodhinī Ekādaśī 1991 falls on Monday 18 November. Ekādaśī runs from 13:37 on Sun 17 Nov to 13:41 on Mon 18 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-11-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-11-19", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18065, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-11-19T12:57:49+08:00", "utc": "1991-11-19T04:57:49Z", "ms": 690526669257.0273 }, "end": { "local": "1991-11-20T11:30:49+08:00", "utc": "1991-11-20T03:30:49Z", "ms": 690607849120.1191 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-19T12:57:49+08:00", "utc": "1991-11-19T04:57:49Z", "ms": 690526669257.0273 }, "end": { "local": "1991-11-20T11:30:49+08:00", "utc": "1991-11-20T03:30:49Z", "ms": 690607849120.1191 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-11-19", "window": { "start": { "local": "1991-11-19T17:58:54+08:00", "utc": "1991-11-19T09:58:54Z", "ms": 690544734268.2549 }, "end": { "local": "1991-11-19T19:45:18+08:00", "utc": "1991-11-19T11:45:18Z", "ms": 690551117980.9998 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1991-11-20", "window": { "start": { "local": "1991-11-20T17:58:35+08:00", "utc": "1991-11-20T09:58:35Z", "ms": 690631114771.9645 }, "end": { "local": "1991-11-20T19:45:07+08:00", "utc": "1991-11-20T11:45:07Z", "ms": 690637507281.0011 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:58 on Tue 19 Nov to 11:31 on Wed 20 Nov.", "fact": "1991-11-19T04:57:49Z → 1991-11-20T03:30:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:59–19:45 on the 19th, 17:59–19:45 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 19th and 0 of 107 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18065 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Tuesday 19 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-11-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-19", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Tuesday 19 November. Trayodaśī runs from 12:58 on Tue 19 Nov to 11:31 on Wed 20 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-11-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9992, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-11-21T09:27:26+08:00", "utc": "1991-11-21T01:27:26Z", "ms": 690686846043.3175 }, "end": { "local": "1991-11-22T06:56:18+08:00", "utc": "1991-11-21T22:56:18Z", "ms": 690764177986.2041 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-21T09:27:26+08:00", "utc": "1991-11-21T01:27:26Z", "ms": 690686846043.3175 }, "end": { "local": "1991-11-22T06:56:18+08:00", "utc": "1991-11-21T22:56:18Z", "ms": 690764177986.2041 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-11-21", "window": { "start": { "local": "1991-11-21T12:13:58+08:00", "utc": "1991-11-21T04:13:58Z", "ms": 690696837706.4326 }, "end": { "local": "1991-11-21T13:01:58+08:00", "utc": "1991-11-21T05:01:58Z", "ms": 690699717706.4326 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-11-22", "window": { "start": { "local": "1991-11-22T12:14:13+08:00", "utc": "1991-11-22T04:14:13Z", "ms": 690783252778.1875 }, "end": { "local": "1991-11-22T13:02:13+08:00", "utc": "1991-11-22T05:02:13Z", "ms": 690786132778.1875 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:27 on Thu 21 Nov to 06:56 on Fri 22 Nov.", "fact": "1991-11-21T01:27:26Z → 1991-11-21T22:56:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:14–13:02 on the 21st, 12:14–13:02 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9992 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Zunyi, 1991: Thursday 21 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kartiki-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-21", "confidence": "determinate" } ], "quote": "In Zunyi, Kārtikī Pūrṇimā 1991 falls on Thursday 21 November. Pūrṇimā runs from 09:27 on Thu 21 Nov to 06:56 on Fri 22 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21237, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-11-21T09:27:26+08:00", "utc": "1991-11-21T01:27:26Z", "ms": 690686846043.3175 }, "end": { "local": "1991-11-22T06:56:18+08:00", "utc": "1991-11-21T22:56:18Z", "ms": 690764177986.2041 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1991-11-21T09:27:26+08:00", "utc": "1991-11-21T01:27:26Z", "ms": 690686846043.3175 }, "end": { "local": "1991-11-22T06:56:18+08:00", "utc": "1991-11-21T22:56:18Z", "ms": 690764177986.2041 } }, "kaala": "nishita", "days": [ { "local_date": "1991-11-20", "window": { "start": { "local": "1991-11-21T00:14:07+08:00", "utc": "1991-11-20T16:14:07Z", "ms": 690653646680.8519 }, "end": { "local": "1991-11-21T01:02:07+08:00", "utc": "1991-11-20T17:02:07Z", "ms": 690656526680.8519 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-11-21", "window": { "start": { "local": "1991-11-22T00:14:21+08:00", "utc": "1991-11-21T16:14:21Z", "ms": 690740060971.1534 }, "end": { "local": "1991-11-22T01:02:21+08:00", "utc": "1991-11-21T17:02:21Z", "ms": 690742940971.1534 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:27 on Thu 21 Nov to 06:56 on Fri 22 Nov.", "fact": "1991-11-21T01:27:26Z → 1991-11-21T22:56:18Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:14–01:02 on the 20th, 00:14–01:02 on the 21st.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21237 s" }, { "step": "ruling", "text": "Rāsayātrā, Zunyi, 1991: Thursday 21 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": "1991-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-21", "confidence": "determinate" } ], "quote": "In Zunyi, Rāsayātrā 1991 falls on Thursday 21 November. Pūrṇimā runs from 09:27 on Thu 21 Nov to 06:56 on Fri 22 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-11-24", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-11-24", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 6499, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-11-24T22:07:29+08:00", "utc": "1991-11-24T14:07:29Z", "ms": 690991649498.2844 }, "end": { "local": "1991-11-25T19:14:10+08:00", "utc": "1991-11-25T11:14:10Z", "ms": 691067649891.2828 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-11-24T22:07:29+08:00", "utc": "1991-11-24T14:07:29Z", "ms": 690991649498.2844 }, "end": { "local": "1991-11-25T19:14:10+08:00", "utc": "1991-11-25T11:14:10Z", "ms": 691067649891.2828 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-11-24", "window": { "start": { "local": "1991-11-24T20:19:11+08:00", "utc": "1991-11-24T12:19:11Z", "ms": 690985150655.7303 }, "end": { "local": "1991-11-24T20:19:11+08:00", "utc": "1991-11-24T12:19:11Z", "ms": 690985150655.7303 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-11-25", "window": { "start": { "local": "1991-11-25T21:27:47+08:00", "utc": "1991-11-25T13:27:47Z", "ms": 691075666971.6259 }, "end": { "local": "1991-11-25T21:27:47+08:00", "utc": "1991-11-25T13:27:47Z", "ms": 691075666971.6259 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:07 on Sun 24 Nov to 19:14 on Mon 25 Nov.", "fact": "1991-11-24T14:07:29Z → 1991-11-25T11:14:10Z" }, { "step": "kaala", "text": "Moonrise is at 20:19 on the 24th and 21:28 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 24th and is not on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 6499 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Sunday 24 November.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-11-24", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-11-24", "confidence": "boundary" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Sunday 24 November. Caturthī runs from 22:07 on Sun 24 Nov to 19:14 on Mon 25 Nov, and is current at moonrise on neither day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-11-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/ekadashi?on=1991-12-02", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3703, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-12-01T08:43:54+08:00", "utc": "1991-12-01T00:43:54Z", "ms": 691548233624.9338 }, "end": { "local": "1991-12-02T08:27:50+08:00", "utc": "1991-12-02T00:27:50Z", "ms": 691633669747.0642 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-01T08:43:54+08:00", "utc": "1991-12-01T00:43:54Z", "ms": 691548233624.9338 }, "end": { "local": "1991-12-02T08:27:50+08:00", "utc": "1991-12-02T00:27:50Z", "ms": 691633669747.0642 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-12-01", "window": { "start": { "local": "1991-12-01T07:25:22+08:00", "utc": "1991-11-30T23:25:22Z", "ms": 691543521673.0242 }, "end": { "local": "1991-12-01T07:25:22+08:00", "utc": "1991-11-30T23:25:22Z", "ms": 691543521673.0242 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-12-02", "window": { "start": { "local": "1991-12-02T07:26:07+08:00", "utc": "1991-12-01T23:26:07Z", "ms": 691629967092.4128 }, "end": { "local": "1991-12-02T07:26:07+08:00", "utc": "1991-12-01T23:26:07Z", "ms": 691629967092.4128 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:44 on Sun 1 Dec to 08:28 on Mon 2 Dec.", "fact": "1991-12-01T00:43:54Z → 1991-12-02T00:27:50Z" }, { "step": "kaala", "text": "Sunrise is at 07:25 on the 1st and 07:26 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 1st and is 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 3703 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Zunyi, 1991: Monday 2 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": "1991-12-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-02", "confidence": "determinate" } ], "quote": "In Zunyi, Utpannā Ekādaśī 1991 falls on Monday 2 December. Ekādaśī runs from 08:44 on Sun 1 Dec to 08:28 on Mon 2 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-12-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/pradosha-vrata?on=1991-12-03", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31170, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-12-03T08:38:54+08:00", "utc": "1991-12-03T00:38:54Z", "ms": 691720734053.0729 }, "end": { "local": "1991-12-04T09:17:20+08:00", "utc": "1991-12-04T01:17:20Z", "ms": 691809440040.3716 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-03T08:38:54+08:00", "utc": "1991-12-03T00:38:54Z", "ms": 691720734053.0729 }, "end": { "local": "1991-12-04T09:17:20+08:00", "utc": "1991-12-04T01:17:20Z", "ms": 691809440040.3716 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-12-03", "window": { "start": { "local": "1991-12-03T17:56:47+08:00", "utc": "1991-12-03T09:56:47Z", "ms": 691754206603.7416 }, "end": { "local": "1991-12-03T19:44:53+08:00", "utc": "1991-12-03T11:44:53Z", "ms": 691760693314.7803 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1991-12-04", "window": { "start": { "local": "1991-12-04T17:56:50+08:00", "utc": "1991-12-04T09:56:50Z", "ms": 691840609667.788 }, "end": { "local": "1991-12-04T19:45:02+08:00", "utc": "1991-12-04T11:45:02Z", "ms": 691847101881.8206 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:39 on Tue 3 Dec to 09:17 on Wed 4 Dec.", "fact": "1991-12-03T00:38:54Z → 1991-12-04T01:17:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:57–19:45 on the 3rd, 17:57–19:45 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 108 of 108 minutes on the 3rd and 0 of 108 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31170 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Zunyi, 1991: Tuesday 3 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-12-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-03", "confidence": "determinate" } ], "quote": "In Zunyi, Kṛṣṇa Pradoṣa Vrata 1991 falls on Tuesday 3 December. Trayodaśī runs from 08:39 on Tue 3 Dec to 09:17 on Wed 4 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-12-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/shivaratri?on=1991-12-04", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29468, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1991-12-04T09:17:20+08:00", "utc": "1991-12-04T01:17:20Z", "ms": 691809440040.3716 }, "end": { "local": "1991-12-05T10:23:15+08:00", "utc": "1991-12-05T02:23:15Z", "ms": 691899795110.5306 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-04T09:17:20+08:00", "utc": "1991-12-04T01:17:20Z", "ms": 691809440040.3716 }, "end": { "local": "1991-12-05T10:23:15+08:00", "utc": "1991-12-05T02:23:15Z", "ms": 691899795110.5306 } }, "kaala": "nishita", "days": [ { "local_date": "1991-12-03", "window": { "start": { "local": "1991-12-04T00:18:12+08:00", "utc": "1991-12-03T16:18:12Z", "ms": 691777091770.1368 }, "end": { "local": "1991-12-04T01:06:12+08:00", "utc": "1991-12-03T17:06:12Z", "ms": 691779971770.1368 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-12-04", "window": { "start": { "local": "1991-12-05T00:18:35+08:00", "utc": "1991-12-04T16:18:35Z", "ms": 691863515470.4102 }, "end": { "local": "1991-12-05T01:06:35+08:00", "utc": "1991-12-04T17:06:35Z", "ms": 691866395470.4102 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:17 on Wed 4 Dec to 10:23 on Thu 5 Dec.", "fact": "1991-12-04T01:17:20Z → 1991-12-05T02:23:15Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:18–01:06 on the 3rd, 00:19–01:07 on the 4th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "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 29468 s" }, { "step": "ruling", "text": "Śivarātri, Zunyi, 1991: Wednesday 4 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": "1991-12-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-04", "confidence": "determinate" } ], "quote": "In Zunyi, Śivarātri 1991 falls on Wednesday 4 December. Caturdaśī runs from 09:17 on Wed 4 Dec to 10:23 on Thu 5 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/zunyi/festivals/1991/shivaratri?on=1991-12-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-12-10", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20737, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-12-09T18:53:58+08:00", "utc": "1991-12-09T10:53:58Z", "ms": 692276038420.4082 }, "end": { "local": "1991-12-10T21:39:49+08:00", "utc": "1991-12-10T13:39:49Z", "ms": 692372388677.0658 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-09T18:53:58+08:00", "utc": "1991-12-09T10:53:58Z", "ms": 692276038420.4082 }, "end": { "local": "1991-12-10T21:39:49+08:00", "utc": "1991-12-10T13:39:49Z", "ms": 692372388677.0658 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-12-09", "window": { "start": { "local": "1991-12-09T12:20:21+08:00", "utc": "1991-12-09T04:20:21Z", "ms": 692252421264.0161 }, "end": { "local": "1991-12-09T13:08:21+08:00", "utc": "1991-12-09T05:08:21Z", "ms": 692255301264.0161 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-12-10", "window": { "start": { "local": "1991-12-10T12:20:48+08:00", "utc": "1991-12-10T04:20:48Z", "ms": 692338848334.4534 }, "end": { "local": "1991-12-10T13:08:48+08:00", "utc": "1991-12-10T05:08:48Z", "ms": 692341728334.4534 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:54 on Mon 9 Dec to 21:40 on Tue 10 Dec.", "fact": "1991-12-09T10:53:58Z → 1991-12-10T13:39:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 9th, 12:21–13:09 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20737 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Zunyi, 1991: Tuesday 10 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": "1991-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-10", "confidence": "determinate" } ], "quote": "In Zunyi, Vināyaka Caturthī 1991 falls on Tuesday 10 December. Caturthī runs from 18:54 on Mon 9 Dec to 21:40 on Tue 10 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/vinayaka-chaturthi?on=1991-12-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30660, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1991-12-10T21:39:49+08:00", "utc": "1991-12-10T13:39:49Z", "ms": 692372388677.0658 }, "end": { "local": "1991-12-12T00:22:29+08:00", "utc": "1991-12-11T16:22:29Z", "ms": 692468548794.2864 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-10T21:39:49+08:00", "utc": "1991-12-10T13:39:49Z", "ms": 692372388677.0658 }, "end": { "local": "1991-12-12T00:22:29+08:00", "utc": "1991-12-11T16:22:29Z", "ms": 692468548794.2864 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-12-10", "window": { "start": { "local": "1991-12-10T12:20:48+08:00", "utc": "1991-12-10T04:20:48Z", "ms": 692338848334.4534 }, "end": { "local": "1991-12-10T13:08:48+08:00", "utc": "1991-12-10T05:08:48Z", "ms": 692341728334.4534 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1991-12-11", "window": { "start": { "local": "1991-12-11T12:21:16+08:00", "utc": "1991-12-11T04:21:16Z", "ms": 692425275824.2867 }, "end": { "local": "1991-12-11T13:09:16+08:00", "utc": "1991-12-11T05:09:16Z", "ms": 692428155824.2867 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 21:40 on Tue 10 Dec to 00:22 on Thu 12 Dec.", "fact": "1991-12-10T13:39:49Z → 1991-12-11T16:22:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:21–13:09 on the 10th, 12:21–13:09 on the 11th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30660 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Zunyi, 1991: Wednesday 11 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": "1991-12-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-11", "confidence": "determinate" } ], "quote": "In Zunyi, Nāga Pañcamī (Mārgaśīrṣa) 1991 falls on Wednesday 11 December. Pañcamī runs from 21:40 on Tue 10 Dec to 00:22 on Thu 12 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34381, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1991-12-12T00:22:29+08:00", "utc": "1991-12-11T16:22:29Z", "ms": 692468548794.2864 }, "end": { "local": "1991-12-13T02:49:11+08:00", "utc": "1991-12-12T18:49:11Z", "ms": 692563751094.1681 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-12T00:22:29+08:00", "utc": "1991-12-11T16:22:29Z", "ms": 692468548794.2864 }, "end": { "local": "1991-12-13T02:49:11+08:00", "utc": "1991-12-12T18:49:11Z", "ms": 692563751094.1681 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-12-12", "window": { "start": { "local": "1991-12-12T12:21:44+08:00", "utc": "1991-12-12T04:21:44Z", "ms": 692511703701.3086 }, "end": { "local": "1991-12-12T13:09:44+08:00", "utc": "1991-12-12T05:09:44Z", "ms": 692514583701.3086 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-12-13", "window": { "start": { "local": "1991-12-13T12:22:12+08:00", "utc": "1991-12-13T04:22:12Z", "ms": 692598131933.0646 }, "end": { "local": "1991-12-13T13:10:12+08:00", "utc": "1991-12-13T05:10:12Z", "ms": 692601011933.0646 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 00:22 on Thu 12 Dec to 02:49 on Fri 13 Dec.", "fact": "1991-12-11T16:22:29Z → 1991-12-12T18:49:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 12th, 12:22–13:10 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 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: paraviddha → only-day · margin 34381 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Zunyi, 1991: Thursday 12 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": "1991-12-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-12", "confidence": "determinate" } ], "quote": "In Zunyi, Campā Ṣaṣṭhī 1991 falls on Thursday 12 December. Ṣaṣṭhī runs from 00:22 on Thu 12 Dec to 02:49 on Fri 13 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34381, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1991-12-12T00:22:29+08:00", "utc": "1991-12-11T16:22:29Z", "ms": 692468548794.2864 }, "end": { "local": "1991-12-13T02:49:11+08:00", "utc": "1991-12-12T18:49:11Z", "ms": 692563751094.1681 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-12T00:22:29+08:00", "utc": "1991-12-11T16:22:29Z", "ms": 692468548794.2864 }, "end": { "local": "1991-12-13T02:49:11+08:00", "utc": "1991-12-12T18:49:11Z", "ms": 692563751094.1681 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-12-12", "window": { "start": { "local": "1991-12-12T12:21:44+08:00", "utc": "1991-12-12T04:21:44Z", "ms": 692511703701.3086 }, "end": { "local": "1991-12-12T13:09:44+08:00", "utc": "1991-12-12T05:09:44Z", "ms": 692514583701.3086 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-12-13", "window": { "start": { "local": "1991-12-13T12:22:12+08:00", "utc": "1991-12-13T04:22:12Z", "ms": 692598131933.0646 }, "end": { "local": "1991-12-13T13:10:12+08:00", "utc": "1991-12-13T05:10:12Z", "ms": 692601011933.0646 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 00:22 on Thu 12 Dec to 02:49 on Fri 13 Dec.", "fact": "1991-12-11T16:22:29Z → 1991-12-12T18:49:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 12th, 12:22–13:10 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 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 34381 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Zunyi, 1991: Thursday 12 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": "1991-12-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-12", "confidence": "determinate" } ], "quote": "In Zunyi, Skanda Ṣaṣṭhī 1991 falls on Thursday 12 December. Ṣaṣṭhī runs from 00:22 on Thu 12 Dec to 02:49 on Fri 13 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27329, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1991-12-13T02:49:11+08:00", "utc": "1991-12-12T18:49:11Z", "ms": 692563751094.1681 }, "end": { "local": "1991-12-14T04:47:11+08:00", "utc": "1991-12-13T20:47:11Z", "ms": 692657231329.198 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-13T02:49:11+08:00", "utc": "1991-12-12T18:49:11Z", "ms": 692563751094.1681 }, "end": { "local": "1991-12-14T04:47:11+08:00", "utc": "1991-12-13T20:47:11Z", "ms": 692657231329.198 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-12-13", "window": { "start": { "local": "1991-12-13T12:22:12+08:00", "utc": "1991-12-13T04:22:12Z", "ms": 692598131933.0646 }, "end": { "local": "1991-12-13T13:10:12+08:00", "utc": "1991-12-13T05:10:12Z", "ms": 692601011933.0646 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-12-14", "window": { "start": { "local": "1991-12-14T12:22:40+08:00", "utc": "1991-12-14T04:22:40Z", "ms": 692684560486.9459 }, "end": { "local": "1991-12-14T13:10:40+08:00", "utc": "1991-12-14T05:10:40Z", "ms": 692687440486.9459 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:49 on Fri 13 Dec to 04:47 on Sat 14 Dec.", "fact": "1991-12-12T18:49:11Z → 1991-12-13T20:47:11Z" }, { "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": "Saptamī 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: purvaviddha → only-day · margin 27329 s" }, { "step": "ruling", "text": "Mitra Saptamī, Zunyi, 1991: Friday 13 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": "1991-12-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-13", "confidence": "determinate" } ], "quote": "In Zunyi, Mitra Saptamī 1991 falls on Friday 13 December. Saptamī runs from 02:49 on Fri 13 Dec to 04:47 on Sat 14 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/ekadashi?on=1991-12-17", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4676, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-12-17T06:18:29+08:00", "utc": "1991-12-16T22:18:29Z", "ms": 692921908982.9357 }, "end": { "local": "1991-12-18T05:10:24+08:00", "utc": "1991-12-17T21:10:24Z", "ms": 693004223954.4541 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-17T06:18:29+08:00", "utc": "1991-12-16T22:18:29Z", "ms": 692921908982.9357 }, "end": { "local": "1991-12-18T05:10:24+08:00", "utc": "1991-12-17T21:10:24Z", "ms": 693004223954.4541 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-12-17", "window": { "start": { "local": "1991-12-17T07:36:25+08:00", "utc": "1991-12-16T23:36:25Z", "ms": 692926585241.0026 }, "end": { "local": "1991-12-17T07:36:25+08:00", "utc": "1991-12-16T23:36:25Z", "ms": 692926585241.0026 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1991-12-18", "window": { "start": { "local": "1991-12-18T07:37:00+08:00", "utc": "1991-12-17T23:37:00Z", "ms": 693013020242.7318 }, "end": { "local": "1991-12-18T07:37:00+08:00", "utc": "1991-12-17T23:37:00Z", "ms": 693013020242.7318 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:18 on Tue 17 Dec to 05:10 on Wed 18 Dec.", "fact": "1991-12-16T22:18:29Z → 1991-12-17T21:10:24Z" }, { "step": "kaala", "text": "Sunrise is at 07:36 on the 17th and 07:37 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 17th and is not on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4676 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Zunyi, 1991: Tuesday 17 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-17", "confidence": "determinate" } ], "quote": "In Zunyi, Mokṣadā Ekādaśī 1991 falls on Tuesday 17 December. Ekādaśī runs from 06:18 on Tue 17 Dec to 05:10 on Wed 18 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-12-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26053, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1991-12-18T05:10:24+08:00", "utc": "1991-12-17T21:10:24Z", "ms": 693004223954.4541 }, "end": { "local": "1991-12-19T03:17:13+08:00", "utc": "1991-12-18T19:17:13Z", "ms": 693083833138.5837 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-18T05:10:24+08:00", "utc": "1991-12-17T21:10:24Z", "ms": 693004223954.4541 }, "end": { "local": "1991-12-19T03:17:13+08:00", "utc": "1991-12-18T19:17:13Z", "ms": 693083833138.5837 } }, "kaala": "madhyahna", "days": [ { "local_date": "1991-12-18", "window": { "start": { "local": "1991-12-18T12:24:37+08:00", "utc": "1991-12-18T04:24:37Z", "ms": 693030277273.8877 }, "end": { "local": "1991-12-18T13:12:37+08:00", "utc": "1991-12-18T05:12:37Z", "ms": 693033157273.8877 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1991-12-19", "window": { "start": { "local": "1991-12-19T12:25:07+08:00", "utc": "1991-12-19T04:25:07Z", "ms": 693116706954.1841 }, "end": { "local": "1991-12-19T13:13:07+08:00", "utc": "1991-12-19T05:13:07Z", "ms": 693119586954.1841 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 05:10 on Wed 18 Dec to 03:17 on Thu 19 Dec.", "fact": "1991-12-17T21:10:24Z → 1991-12-18T19:17:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 18th, 12:25–13:13 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26053 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Zunyi, 1991: Wednesday 18 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akhanda-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-12-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-18", "confidence": "determinate" } ], "quote": "In Zunyi, Akhaṇḍa Dvādaśī 1991 falls on Wednesday 18 December. Dvādaśī runs from 05:10 on Wed 18 Dec to 03:17 on Thu 19 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/pradosha-vrata?on=1991-12-19", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17768, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1991-12-19T03:17:13+08:00", "utc": "1991-12-18T19:17:13Z", "ms": 693083833138.5837 }, "end": { "local": "1991-12-20T00:45:47+08:00", "utc": "1991-12-19T16:45:47Z", "ms": 693161147335.9506 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-19T03:17:13+08:00", "utc": "1991-12-18T19:17:13Z", "ms": 693083833138.5837 }, "end": { "local": "1991-12-20T00:45:47+08:00", "utc": "1991-12-19T16:45:47Z", "ms": 693161147335.9506 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-12-18", "window": { "start": { "local": "1991-12-18T18:00:14+08:00", "utc": "1991-12-18T10:00:14Z", "ms": 693050414305.0437 }, "end": { "local": "1991-12-18T19:49:13+08:00", "utc": "1991-12-18T11:49:13Z", "ms": 693056952962.7705 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "1991-12-19", "window": { "start": { "local": "1991-12-19T18:00:40+08:00", "utc": "1991-12-19T10:00:40Z", "ms": 693136839670.3734 }, "end": { "local": "1991-12-19T19:49:39+08:00", "utc": "1991-12-19T11:49:39Z", "ms": 693143379339.9928 } }, "covered_min": 109, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:17 on Thu 19 Dec to 00:46 on Fri 20 Dec.", "fact": "1991-12-18T19:17:13Z → 1991-12-19T16:45:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:00–19:49 on the 18th, 18:01–19:50 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 109 minutes on the 18th and 109 of 109 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17768 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Zunyi, 1991: Thursday 19 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": "1991-12-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-19", "confidence": "determinate" } ], "quote": "In Zunyi, Śukla Pradoṣa Vrata 1991 falls on Thursday 19 December. Trayodaśī runs from 03:17 on Thu 19 Dec to 00:46 on Fri 20 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/pradosha-vrata?on=1991-12-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1296, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1991-12-20T21:44:38+08:00", "utc": "1991-12-20T13:44:38Z", "ms": 693236677559.5541 }, "end": { "local": "1991-12-21T18:23:11+08:00", "utc": "1991-12-21T10:23:11Z", "ms": 693310990787.433 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-20T21:44:38+08:00", "utc": "1991-12-20T13:44:38Z", "ms": 693236677559.5541 }, "end": { "local": "1991-12-21T18:23:11+08:00", "utc": "1991-12-21T10:23:11Z", "ms": 693310990787.433 } }, "kaala": "pradosha", "days": [ { "local_date": "1991-12-20", "window": { "start": { "local": "1991-12-20T18:01:06+08:00", "utc": "1991-12-20T10:01:06Z", "ms": 693223266340.3896 }, "end": { "local": "1991-12-20T19:50:07+08:00", "utc": "1991-12-20T11:50:07Z", "ms": 693229806704.8318 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "1991-12-21", "window": { "start": { "local": "1991-12-21T18:01:34+08:00", "utc": "1991-12-21T10:01:34Z", "ms": 693309694288.9373 }, "end": { "local": "1991-12-21T19:50:35+08:00", "utc": "1991-12-21T11:50:35Z", "ms": 693316235030.4486 } }, "covered_min": 22, "window_min": 109, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:45 on Fri 20 Dec to 18:23 on Sat 21 Dec.", "fact": "1991-12-20T13:44:38Z → 1991-12-21T10:23:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:01–19:50 on the 20th, 18:02–19:51 on the 21st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 109 minutes on the 20th and 22 of 109 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1296 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Zunyi, 1991: Saturday 21 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dattatreyotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Dattatreyotpatti (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-12-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-21", "confidence": "determinate" } ], "quote": "In Zunyi, Dattātreyotpatti (Datta Jayanti) 1991 falls on Saturday 21 December. Pūrṇimā runs from 21:45 on Fri 20 Dec to 18:23 on Sat 21 Dec and covers 22 of 109 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/zunyi/festivals/1991/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/1991/sankashta-chaturthi?on=1991-12-24", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26529, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1991-12-24T07:54:55+08:00", "utc": "1991-12-23T23:54:55Z", "ms": 693532494962.6229 }, "end": { "local": "1991-12-25T04:48:41+08:00", "utc": "1991-12-24T20:48:41Z", "ms": 693607720795.7845 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-24T07:54:55+08:00", "utc": "1991-12-23T23:54:55Z", "ms": 693532494962.6229 }, "end": { "local": "1991-12-25T04:48:41+08:00", "utc": "1991-12-24T20:48:41Z", "ms": 693607720795.7845 } }, "kaala": "moonrise", "days": [ { "local_date": "1991-12-23", "window": { "start": { "local": "1991-12-23T20:17:31+08:00", "utc": "1991-12-23T12:17:31Z", "ms": 693490650568.3734 }, "end": { "local": "1991-12-23T20:17:31+08:00", "utc": "1991-12-23T12:17:31Z", "ms": 693490650568.3734 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1991-12-24", "window": { "start": { "local": "1991-12-24T21:26:31+08:00", "utc": "1991-12-24T13:26:31Z", "ms": 693581191379.5892 }, "end": { "local": "1991-12-24T21:26:31+08:00", "utc": "1991-12-24T13:26:31Z", "ms": 693581191379.5892 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:55 on Tue 24 Dec to 04:49 on Wed 25 Dec.", "fact": "1991-12-23T23:54:55Z → 1991-12-24T20:48:41Z" }, { "step": "kaala", "text": "Moonrise is at 20:18 on the 23rd and 21:27 on the 24th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 23rd and is on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26529 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Zunyi, 1991: Tuesday 24 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-12-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-24", "confidence": "determinate" } ], "quote": "In Zunyi, Saṅkaṣṭa Caturthī 1991 falls on Tuesday 24 December. Caturthī runs from 07:55 on Tue 24 Dec to 04:49 on Wed 25 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/sankashta-chaturthi?on=1991-12-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/zunyi/festivals/1991/ekadashi?on=1991-12-31", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "1783621", "year": 1991, "local_date": "1991-12-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32099, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1991-12-30T21:46:49+08:00", "utc": "1991-12-30T13:46:49Z", "ms": 694100808768.3079 }, "end": { "local": "1991-12-31T22:48:11+08:00", "utc": "1991-12-31T14:48:11Z", "ms": 694190890972.8092 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1991-12-30T21:46:49+08:00", "utc": "1991-12-30T13:46:49Z", "ms": 694100808768.3079 }, "end": { "local": "1991-12-31T22:48:11+08:00", "utc": "1991-12-31T14:48:11Z", "ms": 694190890972.8092 } }, "kaala": "sunrise", "days": [ { "local_date": "1991-12-31", "window": { "start": { "local": "1991-12-31T07:42:52+08:00", "utc": "1991-12-30T23:42:52Z", "ms": 694136572226.4987 }, "end": { "local": "1991-12-31T07:42:52+08:00", "utc": "1991-12-30T23:42:52Z", "ms": 694136572226.4987 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1992-01-01", "window": { "start": { "local": "1992-01-01T07:43:10+08:00", "utc": "1991-12-31T23:43:10Z", "ms": 694222990340.9261 }, "end": { "local": "1992-01-01T07:43:10+08:00", "utc": "1991-12-31T23:43:10Z", "ms": 694222990340.9261 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:47 on Mon 30 Dec to 22:48 on Tue 31 Dec.", "fact": "1991-12-30T13:46:49Z → 1991-12-31T14:48:11Z" }, { "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 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 32099 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Zunyi, 1991: Tuesday 31 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1991-12-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1991-12-31", "confidence": "determinate" } ], "quote": "In Zunyi, Saphalā Ekādaśī 1991 falls on Tuesday 31 December. Ekādaśī runs from 21:47 on Mon 30 Dec to 22:48 on Tue 31 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/zunyi/festivals/1991/ekadashi?on=1991-12-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }