{ "id": "/chengdu/festivals/1985", "place": { "id": "1815286", "slug": "chengdu", "name": "Chengdu", "region": "Sichuan, China", "country": "CN", "lat": 30.66667, "lon": 104.06667, "elevation_m": 499, "tz": "Asia/Shanghai" }, "year": 1985, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/chengdu/festivals/1985/ekadashi?on=1985-01-03", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1132, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-01-02T07:42:49+08:00", "utc": "1985-01-01T23:42:49Z", "ms": 473470968900.0295 }, "end": { "local": "1985-01-03T09:33:11+08:00", "utc": "1985-01-03T01:33:11Z", "ms": 473563991055.07904 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-01-02T07:42:49+08:00", "utc": "1985-01-01T23:42:49Z", "ms": 473470968900.0295 }, "end": { "local": "1985-01-03T09:33:11+08:00", "utc": "1985-01-03T01:33:11Z", "ms": 473563991055.07904 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-01-02", "window": { "start": { "local": "1985-01-02T08:01:41+08:00", "utc": "1985-01-02T00:01:41Z", "ms": 473472101356.3699 }, "end": { "local": "1985-01-02T08:01:41+08:00", "utc": "1985-01-02T00:01:41Z", "ms": 473472101356.3699 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-01-03", "window": { "start": { "local": "1985-01-03T08:01:54+08:00", "utc": "1985-01-03T00:01:54Z", "ms": 473558513557.8614 }, "end": { "local": "1985-01-03T08:01:54+08:00", "utc": "1985-01-03T00:01:54Z", "ms": 473558513557.8614 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:43 on Wed 2 Jan to 09:33 on Thu 3 Jan.", "fact": "1985-01-01T23:42:49Z → 1985-01-03T01:33:11Z" }, { "step": "kaala", "text": "Sunrise is at 08:02 on the 2nd and 08:02 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 on the 3rd.", "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 1132 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Chengdu, 1985: Thursday 3 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": "1985-01-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-03", "confidence": "determinate" } ], "quote": "In Chengdu, Putradā Ekādaśī 1985 falls on Thursday 3 January. Ekādaśī runs from 07:43 on Wed 2 Jan to 09:33 on Thu 3 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-01-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-01-04", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25207, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-01-04T10:45:32+08:00", "utc": "1985-01-04T02:45:32Z", "ms": 473654732192.01996 }, "end": { "local": "1985-01-05T11:15:57+08:00", "utc": "1985-01-05T03:15:57Z", "ms": 473742957476.60645 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-01-04T10:45:32+08:00", "utc": "1985-01-04T02:45:32Z", "ms": 473654732192.01996 }, "end": { "local": "1985-01-05T11:15:57+08:00", "utc": "1985-01-05T03:15:57Z", "ms": 473742957476.60645 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-01-04", "window": { "start": { "local": "1985-01-04T18:15:19+08:00", "utc": "1985-01-04T10:15:19Z", "ms": 473681718982.8851 }, "end": { "local": "1985-01-04T20:05:34+08:00", "utc": "1985-01-04T12:05:34Z", "ms": 473688334184.9953 } }, "covered_min": 110, "window_min": 110, "qualifies": true }, { "local_date": "1985-01-05", "window": { "start": { "local": "1985-01-05T18:16:05+08:00", "utc": "1985-01-05T10:16:05Z", "ms": 473768164629.4714 }, "end": { "local": "1985-01-05T20:06:15+08:00", "utc": "1985-01-05T12:06:15Z", "ms": 473774774707.89386 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:46 on Fri 4 Jan to 11:16 on Sat 5 Jan.", "fact": "1985-01-04T02:45:32Z → 1985-01-05T03:15:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:15–20:06 on the 4th, 18:16–20:06 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 110 of 110 minutes on the 4th and 0 of 110 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25207 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Friday 4 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": "1985-01-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-04", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Friday 4 January. Trayodaśī runs from 10:46 on Fri 4 Jan to 11:16 on Sat 5 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-01-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-01-10", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18673, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-01-10T05:09:55+08:00", "utc": "1985-01-09T21:09:55Z", "ms": 474152994853.462 }, "end": { "local": "1985-01-11T02:59:09+08:00", "utc": "1985-01-10T18:59:09Z", "ms": 474231548531.6069 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-01-10T05:09:55+08:00", "utc": "1985-01-09T21:09:55Z", "ms": 474152994853.462 }, "end": { "local": "1985-01-11T02:59:09+08:00", "utc": "1985-01-10T18:59:09Z", "ms": 474231548531.6069 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-01-09", "window": { "start": { "local": "1985-01-09T20:40:25+08:00", "utc": "1985-01-09T12:40:25Z", "ms": 474122425260.71204 }, "end": { "local": "1985-01-09T20:40:25+08:00", "utc": "1985-01-09T12:40:25Z", "ms": 474122425260.71204 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-01-10", "window": { "start": { "local": "1985-01-10T21:47:55+08:00", "utc": "1985-01-10T13:47:55Z", "ms": 474212875321.1369 }, "end": { "local": "1985-01-10T21:47:55+08:00", "utc": "1985-01-10T13:47:55Z", "ms": 474212875321.1369 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:10 on Thu 10 Jan to 02:59 on Fri 11 Jan.", "fact": "1985-01-09T21:09:55Z → 1985-01-10T18:59:09Z" }, { "step": "kaala", "text": "Moonrise is at 20:40 on the 9th and 21:48 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 9th and is on the 10th.", "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 18673 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Thursday 10 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": "1985-01-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-10", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Thursday 10 January. Caturthī runs from 05:10 on Thu 10 Jan to 02:59 on Fri 11 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-01-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39007, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 }, "end": { "local": "1985-02-12T18:08:58+08:00", "utc": "1985-02-12T10:08:58Z", "ms": 477050938442.20483 } }, "span": { "of": "transit", "start": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 }, "end": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 } }, "kaala": "sunset-day", "days": [ { "local_date": "1985-01-13", "window": { "start": { "local": "1985-01-12T18:21:44+08:00", "utc": "1985-01-12T10:21:44Z", "ms": 474373303673.80597 }, "end": { "local": "1985-01-13T18:22:34+08:00", "utc": "1985-01-13T10:22:34Z", "ms": 474459754426.62744 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1985-01-14", "window": { "start": { "local": "1985-01-13T18:22:34+08:00", "utc": "1985-01-13T10:22:34Z", "ms": 474459754426.62744 }, "end": { "local": "1985-01-14T18:23:26+08:00", "utc": "1985-01-14T10:23:26Z", "ms": 474546205640.3187 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1985-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 05:13 on Mon 14 Jan.", "fact": "1985-01-13T21:12:41Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 18:23, and the day of the 14th ends at 18:23.", "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 39007 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, Chengdu, 1985: 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": "1985-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1985-01-13", "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": "1985-01-12", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Chengdu, Bhogi 1985 falls on Sunday 13 January. It is kept the day before Pongal, which falls on Monday 14 January. The Sun enters Makara at 05:13 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 12 January.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39007, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 }, "end": { "local": "1985-02-12T18:08:58+08:00", "utc": "1985-02-12T10:08:58Z", "ms": 477050938442.20483 } }, "span": { "of": "transit", "start": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 }, "end": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 } }, "kaala": "sunset-day", "days": [ { "local_date": "1985-01-13", "window": { "start": { "local": "1985-01-12T18:21:44+08:00", "utc": "1985-01-12T10:21:44Z", "ms": 474373303673.80597 }, "end": { "local": "1985-01-13T18:22:34+08:00", "utc": "1985-01-13T10:22:34Z", "ms": 474459754426.62744 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1985-01-14", "window": { "start": { "local": "1985-01-13T18:22:34+08:00", "utc": "1985-01-13T10:22:34Z", "ms": 474459754426.62744 }, "end": { "local": "1985-01-14T18:23:26+08:00", "utc": "1985-01-14T10:23:26Z", "ms": 474546205640.3187 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 05:13 on Mon 14 Jan.", "fact": "1985-01-13T21:12:41Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 18:23, and the day of the 14th ends at 18:23.", "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 39007 s" }, { "step": "ruling", "text": "Pongal, Chengdu, 1985: 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": "1985-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1985-01-14", "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": "1985-01-13", "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 Chengdu, Pongal 1985 falls on Monday 14 January. The Sun enters Makara at 05:13 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18761, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 }, "end": { "local": "1985-02-12T18:08:58+08:00", "utc": "1985-02-12T10:08:58Z", "ms": 477050938442.20483 } }, "span": { "of": "transit", "start": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 }, "end": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 } }, "kaala": "civil-day", "days": [ { "local_date": "1985-01-13", "window": { "start": { "local": "1985-01-13T00:00:00+08:00", "utc": "1985-01-12T16:00:00Z", "ms": 474393600000 }, "end": { "local": "1985-01-14T00:00:00+08:00", "utc": "1985-01-13T16:00:00Z", "ms": 474480000000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "1985-01-14", "window": { "start": { "local": "1985-01-14T00:00:00+08:00", "utc": "1985-01-13T16:00:00Z", "ms": 474480000000 }, "end": { "local": "1985-01-15T00:00:00+08:00", "utc": "1985-01-14T16:00:00Z", "ms": 474566400000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 05:13 on Mon 14 Jan.", "fact": "1985-01-13T21:12:41Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Chengdu.", "fact": "civil-day: midnight-to-midnight · Asia/Shanghai" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 14th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 18761 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Chengdu, 1985: 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": "1985-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1985-01-13", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1985-01-14", "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 Chengdu, Makara Saṅkrānti 1985 falls on Monday 14 January. The Sun enters Makara at 05:13 on Mon 14 Jan, and the rule counts the day from midnight. Counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39007, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 }, "end": { "local": "1985-02-12T18:08:58+08:00", "utc": "1985-02-12T10:08:58Z", "ms": 477050938442.20483 } }, "span": { "of": "transit", "start": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 }, "end": { "local": "1985-01-14T05:12:41+08:00", "utc": "1985-01-13T21:12:41Z", "ms": 474498760993.7092 } }, "kaala": "sunset-day", "days": [ { "local_date": "1985-01-13", "window": { "start": { "local": "1985-01-12T18:21:44+08:00", "utc": "1985-01-12T10:21:44Z", "ms": 474373303673.80597 }, "end": { "local": "1985-01-13T18:22:34+08:00", "utc": "1985-01-13T10:22:34Z", "ms": 474459754426.62744 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1985-01-14", "window": { "start": { "local": "1985-01-13T18:22:34+08:00", "utc": "1985-01-13T10:22:34Z", "ms": 474459754426.62744 }, "end": { "local": "1985-01-14T18:23:26+08:00", "utc": "1985-01-14T10:23:26Z", "ms": 474546205640.3187 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1985-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 05:13 on Mon 14 Jan.", "fact": "1985-01-13T21:12:41Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 18:23, and the day of the 14th ends at 18:23.", "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 39007 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, Chengdu, 1985: 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": "1985-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1985-01-15", "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": "1985-01-14", "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 Chengdu, Mattu Pongal 1985 falls on Tuesday 15 January. It is kept the day after Pongal, which falls on Monday 14 January. The Sun enters Makara at 05:13 on Mon 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-01-17", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19994, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-01-16T15:01:49+08:00", "utc": "1985-01-16T07:01:49Z", "ms": 474706909476.5057 }, "end": { "local": "1985-01-17T13:35:02+08:00", "utc": "1985-01-17T05:35:02Z", "ms": 474788102374.2561 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-01-16T15:01:49+08:00", "utc": "1985-01-16T07:01:49Z", "ms": 474706909476.5057 }, "end": { "local": "1985-01-17T13:35:02+08:00", "utc": "1985-01-17T05:35:02Z", "ms": 474788102374.2561 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-01-16", "window": { "start": { "local": "1985-01-16T08:02:00+08:00", "utc": "1985-01-16T00:02:00Z", "ms": 474681719713.82904 }, "end": { "local": "1985-01-16T08:02:00+08:00", "utc": "1985-01-16T00:02:00Z", "ms": 474681719713.82904 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-01-17", "window": { "start": { "local": "1985-01-17T08:01:48+08:00", "utc": "1985-01-17T00:01:48Z", "ms": 474768108391.01355 }, "end": { "local": "1985-01-17T08:01:48+08:00", "utc": "1985-01-17T00:01:48Z", "ms": 474768108391.01355 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:02 on Wed 16 Jan to 13:35 on Thu 17 Jan.", "fact": "1985-01-16T07:01:49Z → 1985-01-17T05:35:02Z" }, { "step": "kaala", "text": "Sunrise is at 08:02 on the 16th and 08:02 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 16th and is on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19994 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Chengdu, 1985: Thursday 17 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": "1985-01-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-17", "confidence": "determinate" } ], "quote": "In Chengdu, Ṣaṭtilā Ekādaśī 1985 falls on Thursday 17 January. Ekādaśī runs from 15:02 on Wed 16 Jan to 13:35 on Thu 17 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-01-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-01-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21937, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-01-18T12:21:17+08:00", "utc": "1985-01-18T04:21:17Z", "ms": 474870076820.99615 }, "end": { "local": "1985-01-19T11:23:04+08:00", "utc": "1985-01-19T03:23:04Z", "ms": 474952984163.6832 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-01-18T12:21:17+08:00", "utc": "1985-01-18T04:21:17Z", "ms": 474870076820.99615 }, "end": { "local": "1985-01-19T11:23:04+08:00", "utc": "1985-01-19T03:23:04Z", "ms": 474952984163.6832 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-01-18", "window": { "start": { "local": "1985-01-18T18:26:54+08:00", "utc": "1985-01-18T10:26:54Z", "ms": 474892014259.99084 }, "end": { "local": "1985-01-18T20:15:30+08:00", "utc": "1985-01-18T12:15:30Z", "ms": 474898529787.8415 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "1985-01-19", "window": { "start": { "local": "1985-01-19T18:27:47+08:00", "utc": "1985-01-19T10:27:47Z", "ms": 474978467139.7905 }, "end": { "local": "1985-01-19T20:16:13+08:00", "utc": "1985-01-19T12:16:13Z", "ms": 474984973438.3293 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:21 on Fri 18 Jan to 11:23 on Sat 19 Jan.", "fact": "1985-01-18T04:21:17Z → 1985-01-19T03:23:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:27–20:15 on the 18th, 18:28–20:16 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 109 of 109 minutes on the 18th and 0 of 108 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 21937 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Friday 18 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": "1985-01-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-18", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Friday 18 January. Trayodaśī runs from 12:21 on Fri 18 Jan to 11:23 on Sat 19 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-01-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shivaratri?on=1985-01-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32731, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-01-19T11:23:04+08:00", "utc": "1985-01-19T03:23:04Z", "ms": 474952984163.6832 }, "end": { "local": "1985-01-20T10:43:57+08:00", "utc": "1985-01-20T02:43:57Z", "ms": 475037037161.3061 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-01-19T11:23:04+08:00", "utc": "1985-01-19T03:23:04Z", "ms": 474952984163.6832 }, "end": { "local": "1985-01-20T10:43:57+08:00", "utc": "1985-01-20T02:43:57Z", "ms": 475037037161.3061 } }, "kaala": "nishita", "days": [ { "local_date": "1985-01-18", "window": { "start": { "local": "1985-01-19T00:50:07+08:00", "utc": "1985-01-18T16:50:07Z", "ms": 474915007489.4308 }, "end": { "local": "1985-01-19T01:38:07+08:00", "utc": "1985-01-18T17:38:07Z", "ms": 474917887489.4308 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-01-19", "window": { "start": { "local": "1985-01-20T00:50:26+08:00", "utc": "1985-01-19T16:50:26Z", "ms": 475001425759.3108 }, "end": { "local": "1985-01-20T01:38:26+08:00", "utc": "1985-01-19T17:38:26Z", "ms": 475004305759.3108 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:23 on Sat 19 Jan to 10:44 on Sun 20 Jan.", "fact": "1985-01-19T03:23:04Z → 1985-01-20T02:43:57Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:50–01:38 on the 18th, 00:50–01:38 on the 19th.", "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 18th and 48 of 48 on the 19th.", "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 32731 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Saturday 19 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": "1985-01-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-19", "confidence": "determinate" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Saturday 19 January. Caturdaśī runs from 11:23 on Sat 19 Jan to 10:44 on Sun 20 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/shivaratri?on=1985-01-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9773, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-01-19T11:23:04+08:00", "utc": "1985-01-19T03:23:04Z", "ms": 474952984163.6832 }, "end": { "local": "1985-01-20T10:43:57+08:00", "utc": "1985-01-20T02:43:57Z", "ms": 475037037161.3061 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-01-19T11:23:04+08:00", "utc": "1985-01-19T03:23:04Z", "ms": 474952984163.6832 }, "end": { "local": "1985-01-20T10:43:57+08:00", "utc": "1985-01-20T02:43:57Z", "ms": 475037037161.3061 } }, "kaala": "arunodaya", "days": [ { "local_date": "1985-01-19", "window": { "start": { "local": "1985-01-19T06:12:45+08:00", "utc": "1985-01-18T22:12:45Z", "ms": 474934365191.02014 }, "end": { "local": "1985-01-19T08:01:21+08:00", "utc": "1985-01-19T00:01:21Z", "ms": 474940880718.8708 } }, "covered_min": 0, "window_min": 109, "qualifies": false }, { "local_date": "1985-01-20", "window": { "start": { "local": "1985-01-20T06:12:38+08:00", "utc": "1985-01-19T22:12:38Z", "ms": 475020758080.2923 }, "end": { "local": "1985-01-20T08:01:04+08:00", "utc": "1985-01-20T00:01:04Z", "ms": 475027264378.83105 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:23 on Sat 19 Jan to 10:44 on Sun 20 Jan.", "fact": "1985-01-19T03:23:04Z → 1985-01-20T02:43:57Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 06:13–08:01 on the 19th, 06:13–08:01 on the 20th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 109 minutes on the 19th and 108 of 108 on the 20th.", "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 9773 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Chengdu, 1985: Sunday 20 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": "1985-01-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-20", "confidence": "determinate" } ], "quote": "In Chengdu, Yama Tarpaṇa 1985 falls on Sunday 20 January. Caturdaśī runs from 11:23 on Sat 19 Jan to 10:44 on Sun 20 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 543, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-01-24T12:42:55+08:00", "utc": "1985-01-24T04:42:55Z", "ms": 475389775388.8061 }, "end": { "local": "1985-01-25T14:34:06+08:00", "utc": "1985-01-25T06:34:06Z", "ms": 475482846200.5495 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-01-24T12:42:55+08:00", "utc": "1985-01-24T04:42:55Z", "ms": 475389775388.8061 }, "end": { "local": "1985-01-25T14:34:06+08:00", "utc": "1985-01-25T06:34:06Z", "ms": 475482846200.5495 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-01-24", "window": { "start": { "local": "1985-01-24T12:51:58+08:00", "utc": "1985-01-24T04:51:58Z", "ms": 475390318128.9489 }, "end": { "local": "1985-01-24T13:39:58+08:00", "utc": "1985-01-24T05:39:58Z", "ms": 475393198128.9489 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-01-25", "window": { "start": { "local": "1985-01-25T12:52:13+08:00", "utc": "1985-01-25T04:52:13Z", "ms": 475476732600.7179 }, "end": { "local": "1985-01-25T13:40:13+08:00", "utc": "1985-01-25T05:40:13Z", "ms": 475479612600.7179 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:43 on Thu 24 Jan to 14:34 on Fri 25 Jan.", "fact": "1985-01-24T04:42:55Z → 1985-01-25T06:34:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:52–13:40 on the 24th, 12:52–13:40 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 543 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Chengdu, 1985: Thursday 24 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-24", "confidence": "determinate" } ], "quote": "In Chengdu, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1985 falls on Thursday 24 January. Caturthī runs from 12:43 on Thu 24 Jan to 14:34 on Fri 25 Jan and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14341, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-01-24T12:42:55+08:00", "utc": "1985-01-24T04:42:55Z", "ms": 475389775388.8061 }, "end": { "local": "1985-01-25T14:34:06+08:00", "utc": "1985-01-25T06:34:06Z", "ms": 475482846200.5495 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-01-24T12:42:55+08:00", "utc": "1985-01-24T04:42:55Z", "ms": 475389775388.8061 }, "end": { "local": "1985-01-25T14:34:06+08:00", "utc": "1985-01-25T06:34:06Z", "ms": 475482846200.5495 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-01-24", "window": { "start": { "local": "1985-01-24T18:32:14+08:00", "utc": "1985-01-24T10:32:14Z", "ms": 475410733772.5749 }, "end": { "local": "1985-01-24T20:19:50+08:00", "utc": "1985-01-24T12:19:50Z", "ms": 475417190326.6245 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1985-01-25", "window": { "start": { "local": "1985-01-25T18:33:07+08:00", "utc": "1985-01-25T10:33:07Z", "ms": 475497187273.4887 }, "end": { "local": "1985-01-25T20:20:33+08:00", "utc": "1985-01-25T12:20:33Z", "ms": 475503633205.39905 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:43 on Thu 24 Jan to 14:34 on Fri 25 Jan.", "fact": "1985-01-24T04:42:55Z → 1985-01-25T06:34:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:32–20:20 on the 24th, 18:33–20:21 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 108 of 108 minutes on the 24th and 0 of 107 on the 25th.", "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 14341 s" }, { "step": "ruling", "text": "Tila Caturthī, Chengdu, 1985: Thursday 24 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": "1985-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-24", "confidence": "determinate" } ], "quote": "In Chengdu, Tila Caturthī 1985 falls on Thursday 24 January. Caturthī runs from 12:43 on Thu 24 Jan to 14:34 on Fri 25 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3234, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1985-01-25T14:34:06+08:00", "utc": "1985-01-25T06:34:06Z", "ms": 475482846200.5495 }, "end": { "local": "1985-01-26T16:53:09+08:00", "utc": "1985-01-26T08:53:09Z", "ms": 475577589309.4193 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-01-25T14:34:06+08:00", "utc": "1985-01-25T06:34:06Z", "ms": 475482846200.5495 }, "end": { "local": "1985-01-26T16:53:09+08:00", "utc": "1985-01-26T08:53:09Z", "ms": 475577589309.4193 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-01-25", "window": { "start": { "local": "1985-01-25T12:52:13+08:00", "utc": "1985-01-25T04:52:13Z", "ms": 475476732600.7179 }, "end": { "local": "1985-01-25T13:40:13+08:00", "utc": "1985-01-25T05:40:13Z", "ms": 475479612600.7179 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-01-26", "window": { "start": { "local": "1985-01-26T12:52:26+08:00", "utc": "1985-01-26T04:52:26Z", "ms": 475563146256.252 }, "end": { "local": "1985-01-26T13:40:26+08:00", "utc": "1985-01-26T05:40:26Z", "ms": 475566026256.252 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 14:34 on Fri 25 Jan to 16:53 on Sat 26 Jan.", "fact": "1985-01-25T06:34:06Z → 1985-01-26T08:53:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:52–13:40 on the 25th, 12:52–13:40 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3234 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Chengdu, 1985: Saturday 26 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-26", "confidence": "determinate" } ], "quote": "In Chengdu, Śrī Pañcamī 1985 falls on Saturday 26 January. Pañcamī runs from 14:34 on Fri 25 Jan to 16:53 on Sat 26 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3234, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1985-01-25T14:34:06+08:00", "utc": "1985-01-25T06:34:06Z", "ms": 475482846200.5495 }, "end": { "local": "1985-01-26T16:53:09+08:00", "utc": "1985-01-26T08:53:09Z", "ms": 475577589309.4193 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-01-25T14:34:06+08:00", "utc": "1985-01-25T06:34:06Z", "ms": 475482846200.5495 }, "end": { "local": "1985-01-26T16:53:09+08:00", "utc": "1985-01-26T08:53:09Z", "ms": 475577589309.4193 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-01-25", "window": { "start": { "local": "1985-01-25T12:52:13+08:00", "utc": "1985-01-25T04:52:13Z", "ms": 475476732600.7179 }, "end": { "local": "1985-01-25T13:40:13+08:00", "utc": "1985-01-25T05:40:13Z", "ms": 475479612600.7179 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-01-26", "window": { "start": { "local": "1985-01-26T12:52:26+08:00", "utc": "1985-01-26T04:52:26Z", "ms": 475563146256.252 }, "end": { "local": "1985-01-26T13:40:26+08:00", "utc": "1985-01-26T05:40:26Z", "ms": 475566026256.252 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 14:34 on Fri 25 Jan to 16:53 on Sat 26 Jan.", "fact": "1985-01-25T06:34:06Z → 1985-01-26T08:53:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:52–13:40 on the 25th, 12:52–13:40 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3234 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Chengdu, 1985: Saturday 26 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-26", "confidence": "determinate" } ], "quote": "In Chengdu, Vasanta Pañcamī 1985 falls on Saturday 26 January. Pañcamī runs from 14:34 on Fri 25 Jan to 16:53 on Sat 26 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-01-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28728, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1985-01-27T19:30:18+08:00", "utc": "1985-01-27T11:30:18Z", "ms": 475673417984.1919 }, "end": { "local": "1985-01-28T22:11:43+08:00", "utc": "1985-01-28T14:11:43Z", "ms": 475769502513.5361 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-01-27T19:30:18+08:00", "utc": "1985-01-27T11:30:18Z", "ms": 475673417984.1919 }, "end": { "local": "1985-01-28T22:11:43+08:00", "utc": "1985-01-28T14:11:43Z", "ms": 475769502513.5361 } }, "kaala": "arunodaya", "days": [ { "local_date": "1985-01-28", "window": { "start": { "local": "1985-01-28T06:10:51+08:00", "utc": "1985-01-27T22:10:51Z", "ms": 475711850607.29834 }, "end": { "local": "1985-01-28T07:57:55+08:00", "utc": "1985-01-27T23:57:55Z", "ms": 475718274674.6942 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1985-01-29", "window": { "start": { "local": "1985-01-29T06:10:31+08:00", "utc": "1985-01-28T22:10:31Z", "ms": 475798230950.09595 }, "end": { "local": "1985-01-29T07:57:24+08:00", "utc": "1985-01-28T23:57:24Z", "ms": 475804643788.277 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 19:30 on Sun 27 Jan to 22:12 on Mon 28 Jan.", "fact": "1985-01-27T11:30:18Z → 1985-01-28T14:11:43Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 06:11–07:58 on the 28th, 06:11–07:57 on the 29th.", "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 107 of 107 minutes on the 28th and 0 of 107 on the 29th.", "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 28728 s" }, { "step": "ruling", "text": "Ratha Saptamī, Chengdu, 1985: Monday 28 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": "1985-01-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-01-28", "confidence": "determinate" } ], "quote": "In Chengdu, Ratha Saptamī 1985 falls on Monday 28 January. Saptamī runs from 19:30 on Sun 27 Jan to 22:12 on Mon 28 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-02-01", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-02-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11690, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-02-01T04:05:44+08:00", "utc": "1985-01-31T20:05:44Z", "ms": 476049944375.6635 }, "end": { "local": "1985-02-02T04:40:16+08:00", "utc": "1985-02-01T20:40:16Z", "ms": 476138415571.45105 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-02-01T04:05:44+08:00", "utc": "1985-01-31T20:05:44Z", "ms": 476049944375.6635 }, "end": { "local": "1985-02-02T04:40:16+08:00", "utc": "1985-02-01T20:40:16Z", "ms": 476138415571.45105 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-02-01", "window": { "start": { "local": "1985-02-01T07:55:42+08:00", "utc": "1985-01-31T23:55:42Z", "ms": 476063742008.6803 }, "end": { "local": "1985-02-01T07:55:42+08:00", "utc": "1985-01-31T23:55:42Z", "ms": 476063742008.6803 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-02-02", "window": { "start": { "local": "1985-02-02T07:55:05+08:00", "utc": "1985-02-01T23:55:05Z", "ms": 476150105118.8961 }, "end": { "local": "1985-02-02T07:55:05+08:00", "utc": "1985-02-01T23:55:05Z", "ms": 476150105118.8961 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:06 on Fri 1 Feb to 04:40 on Sat 2 Feb.", "fact": "1985-01-31T20:05:44Z → 1985-02-01T20:40:16Z" }, { "step": "kaala", "text": "Sunrise is at 07:56 on the 1st and 07:55 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11690 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Chengdu, 1985: Friday 1 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": "1985-02-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-02-01", "confidence": "determinate" } ], "quote": "In Chengdu, Jayā Ekādaśī 1985 falls on Friday 1 February. Ekādaśī runs from 04:06 on Fri 1 Feb to 04:40 on Sat 2 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-02-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-02-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29603, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1985-02-02T04:40:16+08:00", "utc": "1985-02-01T20:40:16Z", "ms": 476138415571.45105 }, "end": { "local": "1985-02-03T04:24:42+08:00", "utc": "1985-02-02T20:24:42Z", "ms": 476223882209.57697 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-02-02T04:40:16+08:00", "utc": "1985-02-01T20:40:16Z", "ms": 476138415571.45105 }, "end": { "local": "1985-02-03T04:24:42+08:00", "utc": "1985-02-02T20:24:42Z", "ms": 476223882209.57697 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-02-02", "window": { "start": { "local": "1985-02-02T12:53:39+08:00", "utc": "1985-02-02T04:53:39Z", "ms": 476168018525.4701 }, "end": { "local": "1985-02-02T13:41:39+08:00", "utc": "1985-02-02T05:41:39Z", "ms": 476170898525.4701 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-02-03", "window": { "start": { "local": "1985-02-03T12:53:46+08:00", "utc": "1985-02-03T04:53:46Z", "ms": 476254425500.66895 }, "end": { "local": "1985-02-03T13:41:46+08:00", "utc": "1985-02-03T05:41:46Z", "ms": 476257305500.66895 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 04:40 on Sat 2 Feb to 04:25 on Sun 3 Feb.", "fact": "1985-02-01T20:40:16Z → 1985-02-02T20:24:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:54–13:42 on the 2nd, 12:54–13:42 on the 3rd.", "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 2nd and 0 of 48 on the 3rd.", "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 29603 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Chengdu, 1985: Saturday 2 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhishma-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-02-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-02-02", "confidence": "determinate" } ], "quote": "In Chengdu, Bhīṣma Dvādaśī 1985 falls on Saturday 2 February. Dvādaśī runs from 04:40 on Sat 2 Feb to 04:25 on Sun 3 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/pradosha-vrata?on=1985-02-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-02-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24883, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-02-03T04:24:42+08:00", "utc": "1985-02-02T20:24:42Z", "ms": 476223882209.57697 }, "end": { "local": "1985-02-04T03:21:29+08:00", "utc": "1985-02-03T19:21:29Z", "ms": 476306489328.5501 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-02-03T04:24:42+08:00", "utc": "1985-02-02T20:24:42Z", "ms": 476223882209.57697 }, "end": { "local": "1985-02-04T03:21:29+08:00", "utc": "1985-02-03T19:21:29Z", "ms": 476306489328.5501 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-02-02", "window": { "start": { "local": "1985-02-02T18:40:12+08:00", "utc": "1985-02-02T10:40:12Z", "ms": 476188811932.04407 }, "end": { "local": "1985-02-02T20:26:06+08:00", "utc": "1985-02-02T12:26:06Z", "ms": 476195165913.00366 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "1985-02-03", "window": { "start": { "local": "1985-02-03T18:41:04+08:00", "utc": "1985-02-03T10:41:04Z", "ms": 476275264212.09674 }, "end": { "local": "1985-02-03T20:26:46+08:00", "utc": "1985-02-03T12:26:46Z", "ms": 476281605923.3561 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:25 on Sun 3 Feb to 03:21 on Mon 4 Feb.", "fact": "1985-02-02T20:24:42Z → 1985-02-03T19:21:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:40–20:26 on the 2nd, 18:41–20:27 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 106 minutes on the 2nd and 106 of 106 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24883 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Sunday 3 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": "1985-02-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-02-03", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Sunday 3 February. Trayodaśī runs from 04:25 on Sun 3 Feb to 03:21 on Mon 4 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-02-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-02-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34610, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-02-05T01:36:41+08:00", "utc": "1985-02-04T17:36:41Z", "ms": 476386601474.6554 }, "end": { "local": "1985-02-05T23:18:47+08:00", "utc": "1985-02-05T15:18:47Z", "ms": 476464726664.17346 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1985-02-05T01:36:41+08:00", "utc": "1985-02-04T17:36:41Z", "ms": 476386601474.6554 }, "end": { "local": "1985-02-05T23:18:47+08:00", "utc": "1985-02-05T15:18:47Z", "ms": 476464726664.17346 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-02-04", "window": { "start": { "local": "1985-02-04T12:53:52+08:00", "utc": "1985-02-04T04:53:52Z", "ms": 476340831646.7637 }, "end": { "local": "1985-02-04T13:41:52+08:00", "utc": "1985-02-04T05:41:52Z", "ms": 476343711646.7637 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-02-05", "window": { "start": { "local": "1985-02-05T12:53:57+08:00", "utc": "1985-02-05T04:53:57Z", "ms": 476427236970.74097 }, "end": { "local": "1985-02-05T13:41:57+08:00", "utc": "1985-02-05T05:41:57Z", "ms": 476430116970.74097 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:37 on Tue 5 Feb to 23:19 on Tue 5 Feb.", "fact": "1985-02-04T17:36:41Z → 1985-02-05T15:18:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:54–13:42 on the 4th, 12:54–13:42 on the 5th.", "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 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34610 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Chengdu, 1985: Tuesday 5 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maghi-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Maghi purnima (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-02-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-02-05", "confidence": "determinate" } ], "quote": "In Chengdu, Māghī Pūrṇimā 1985 falls on Tuesday 5 February. Pūrṇimā runs from 01:37 on Tue 5 Feb to 23:19 on Tue 5 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-02-08", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25414, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-02-08T14:44:36+08:00", "utc": "1985-02-08T06:44:36Z", "ms": 476693076263.3848 }, "end": { "local": "1985-02-09T11:51:31+08:00", "utc": "1985-02-09T03:51:31Z", "ms": 476769090759.9602 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1985-02-08T14:44:36+08:00", "utc": "1985-02-08T06:44:36Z", "ms": 476693076263.3848 }, "end": { "local": "1985-02-09T11:51:31+08:00", "utc": "1985-02-09T03:51:31Z", "ms": 476769090759.9602 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-02-08", "window": { "start": { "local": "1985-02-08T21:48:10+08:00", "utc": "1985-02-08T13:48:10Z", "ms": 476718489839.32434 }, "end": { "local": "1985-02-08T21:48:10+08:00", "utc": "1985-02-08T13:48:10Z", "ms": 476718489839.32434 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-02-09", "window": { "start": { "local": "1985-02-09T22:54:57+08:00", "utc": "1985-02-09T14:54:57Z", "ms": 476808897249.4082 }, "end": { "local": "1985-02-09T22:54:57+08:00", "utc": "1985-02-09T14:54:57Z", "ms": 476808897249.4082 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:45 on Fri 8 Feb to 11:52 on Sat 9 Feb.", "fact": "1985-02-08T06:44:36Z → 1985-02-09T03:51:31Z" }, { "step": "kaala", "text": "Moonrise is at 21:48 on the 8th and 22:55 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 8th and is not on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25414 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Friday 8 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": "1985-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-02-08", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Friday 8 February. Caturthī runs from 14:45 on Fri 8 Feb to 11:52 on Sat 9 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-02-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ekadashi?on=1985-02-15", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23712, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-02-15T01:09:53+08:00", "utc": "1985-02-14T17:09:53Z", "ms": 477248993185.7817 }, "end": { "local": "1985-02-16T00:43:22+08:00", "utc": "1985-02-15T16:43:22Z", "ms": 477333801564.69684 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1985-02-15T01:09:53+08:00", "utc": "1985-02-14T17:09:53Z", "ms": 477248993185.7817 }, "end": { "local": "1985-02-16T00:43:22+08:00", "utc": "1985-02-15T16:43:22Z", "ms": 477333801564.69684 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-02-15", "window": { "start": { "local": "1985-02-15T07:45:05+08:00", "utc": "1985-02-14T23:45:05Z", "ms": 477272704792.83936 }, "end": { "local": "1985-02-15T07:45:05+08:00", "utc": "1985-02-14T23:45:05Z", "ms": 477272704792.83936 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-02-16", "window": { "start": { "local": "1985-02-16T07:44:10+08:00", "utc": "1985-02-15T23:44:10Z", "ms": 477359050317.2227 }, "end": { "local": "1985-02-16T07:44:10+08:00", "utc": "1985-02-15T23:44:10Z", "ms": 477359050317.2227 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:10 on Fri 15 Feb to 00:43 on Sat 16 Feb.", "fact": "1985-02-14T17:09:53Z → 1985-02-15T16:43:22Z" }, { "step": "kaala", "text": "Sunrise is at 07:45 on the 15th and 07:44 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 15th and is not on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23712 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Chengdu, 1985: Friday 15 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": "1985-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-02-15", "confidence": "determinate" } ], "quote": "In Chengdu, Vijayā Ekādaśī 1985 falls on Friday 15 February. Ekādaśī runs from 01:10 on Fri 15 Feb to 00:43 on Sat 16 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-02-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-02-17", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-disputed" ], "boundary_margin_s": 172, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-02-18T00:56:24+08:00", "utc": "1985-02-17T16:56:24Z", "ms": 477507384251.93585 }, "end": { "local": "1985-02-19T01:37:13+08:00", "utc": "1985-02-18T17:37:13Z", "ms": 477596232589.49335 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1985-02-18T00:56:24+08:00", "utc": "1985-02-17T16:56:24Z", "ms": 477507384251.93585 }, "end": { "local": "1985-02-19T01:37:13+08:00", "utc": "1985-02-18T17:37:13Z", "ms": 477596232589.49335 } }, "kaala": "nishita", "days": [ { "local_date": "1985-02-17", "window": { "start": { "local": "1985-02-18T00:53:32+08:00", "utc": "1985-02-17T16:53:32Z", "ms": 477507212085.0505 }, "end": { "local": "1985-02-18T01:41:32+08:00", "utc": "1985-02-17T17:41:32Z", "ms": 477510092085.0505 } }, "covered_min": 45, "window_min": 48, "qualifies": true }, { "local_date": "1985-02-18", "window": { "start": { "local": "1985-02-19T00:53:27+08:00", "utc": "1985-02-18T16:53:27Z", "ms": 477593607126.811 }, "end": { "local": "1985-02-19T01:41:27+08:00", "utc": "1985-02-18T17:41:27Z", "ms": 477596487126.811 } }, "covered_min": 44, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 00:56 on Mon 18 Feb to 01:37 on Tue 19 Feb.", "fact": "1985-02-17T16:56:24Z → 1985-02-18T17:37:13Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:54–01:42 on the 17th, 00:53–01:41 on the 18th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 45 of 48 minutes on the 17th and 44 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both nights qualify and the cited authorities disagree. The one covered longer is ruled, as a boundary.", "fact": "priority: disputed → greater-coverage · margin 172 s < 300 s" }, { "step": "ruling", "text": "Mahāśivarātri, Chengdu, 1985: Sunday 17 February.", "fact": "confidence: boundary (margin, tie-break-disputed)" } ], "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": "1985-02-17", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-02-17", "confidence": "boundary" } ], "quote": "In Chengdu, Mahāśivarātri 1985 falls on Sunday 17 February. Caturdaśī runs from 00:56 on Mon 18 Feb to 01:37 on Tue 19 Feb and covers 45 of 48 minutes of niśītha that night. It also reaches the next night for 44 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 52 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/pradosha-vrata?on=1985-02-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-02-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14640, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-02-17T00:38:48+08:00", "utc": "1985-02-16T16:38:48Z", "ms": 477419927790.8936 }, "end": { "local": "1985-02-18T00:56:24+08:00", "utc": "1985-02-17T16:56:24Z", "ms": 477507384251.93585 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1985-02-17T00:38:48+08:00", "utc": "1985-02-16T16:38:48Z", "ms": 477419927790.8936 }, "end": { "local": "1985-02-18T00:56:24+08:00", "utc": "1985-02-17T16:56:24Z", "ms": 477507384251.93585 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-02-16", "window": { "start": { "local": "1985-02-16T18:51:58+08:00", "utc": "1985-02-16T10:51:58Z", "ms": 477399117928.8092 }, "end": { "local": "1985-02-16T20:34:48+08:00", "utc": "1985-02-16T12:34:48Z", "ms": 477405288177.31006 } }, "covered_min": 0, "window_min": 103, "qualifies": false }, { "local_date": "1985-02-17", "window": { "start": { "local": "1985-02-17T18:52:46+08:00", "utc": "1985-02-17T10:52:46Z", "ms": 477485565925.32745 }, "end": { "local": "1985-02-17T20:35:22+08:00", "utc": "1985-02-17T12:35:22Z", "ms": 477491722234.5869 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:39 on Sun 17 Feb to 00:56 on Mon 18 Feb.", "fact": "1985-02-16T16:38:48Z → 1985-02-17T16:56:24Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:52–20:35 on the 16th, 18:53–20:35 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 16th and 103 of 103 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14640 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Sunday 17 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": "1985-02-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-02-17", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Sunday 17 February. Trayodaśī runs from 00:39 on Sun 17 Feb to 00:56 on Mon 18 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-02-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-02-23", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-02-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6322, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-02-23T08:31:02+08:00", "utc": "1985-02-23T00:31:02Z", "ms": 477966662285.48126 }, "end": { "local": "1985-02-24T11:07:53+08:00", "utc": "1985-02-24T03:07:53Z", "ms": 478062473237.5493 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1985-02-23T08:31:02+08:00", "utc": "1985-02-23T00:31:02Z", "ms": 477966662285.48126 }, "end": { "local": "1985-02-24T11:07:53+08:00", "utc": "1985-02-24T03:07:53Z", "ms": 478062473237.5493 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-02-23", "window": { "start": { "local": "1985-02-23T12:53:24+08:00", "utc": "1985-02-23T04:53:24Z", "ms": 477982403532.3153 }, "end": { "local": "1985-02-23T13:41:24+08:00", "utc": "1985-02-23T05:41:24Z", "ms": 477985283532.3153 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-02-24", "window": { "start": { "local": "1985-02-24T12:53:15+08:00", "utc": "1985-02-24T04:53:15Z", "ms": 478068795128.46814 }, "end": { "local": "1985-02-24T13:41:15+08:00", "utc": "1985-02-24T05:41:15Z", "ms": 478071675128.46814 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:31 on Sat 23 Feb to 11:08 on Sun 24 Feb.", "fact": "1985-02-23T00:31:02Z → 1985-02-24T03:07:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:53–13:41 on the 23rd, 12:53–13:41 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6322 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Chengdu, 1985: Saturday 23 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": "1985-02-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-02-23", "confidence": "determinate" } ], "quote": "In Chengdu, Vināyaka Caturthī 1985 falls on Saturday 23 February. Caturthī runs from 08:31 on Sat 23 Feb to 11:08 on Sun 24 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-02-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ekadashi?on=1985-03-03", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36319, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-03-02T21:23:23+08:00", "utc": "1985-03-02T13:23:23Z", "ms": 478617803142.5194 }, "end": { "local": "1985-03-03T20:32:46+08:00", "utc": "1985-03-03T12:32:46Z", "ms": 478701166425.6973 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1985-03-02T21:23:23+08:00", "utc": "1985-03-02T13:23:23Z", "ms": 478617803142.5194 }, "end": { "local": "1985-03-03T20:32:46+08:00", "utc": "1985-03-03T12:32:46Z", "ms": 478701166425.6973 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-03-03", "window": { "start": { "local": "1985-03-03T07:28:42+08:00", "utc": "1985-03-02T23:28:42Z", "ms": 478654122229.9232 }, "end": { "local": "1985-03-03T07:28:42+08:00", "utc": "1985-03-02T23:28:42Z", "ms": 478654122229.9232 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-03-04", "window": { "start": { "local": "1985-03-04T07:27:34+08:00", "utc": "1985-03-03T23:27:34Z", "ms": 478740454233.05615 }, "end": { "local": "1985-03-04T07:27:34+08:00", "utc": "1985-03-03T23:27:34Z", "ms": 478740454233.05615 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:23 on Sat 2 Mar to 20:33 on Sun 3 Mar.", "fact": "1985-03-02T13:23:23Z → 1985-03-03T12:32:46Z" }, { "step": "kaala", "text": "Sunrise is at 07:29 on the 3rd and 07:28 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36319 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Chengdu, 1985: Sunday 3 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": "1985-03-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-03", "confidence": "determinate" } ], "quote": "In Chengdu, Āmalakī Ekādaśī 1985 falls on Sunday 3 March. Ekādaśī runs from 21:23 on Sat 2 Mar to 20:33 on Sun 3 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-03-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-03-04", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 695, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-03-04T18:52:25+08:00", "utc": "1985-03-04T10:52:25Z", "ms": 478781545405.091 }, "end": { "local": "1985-03-05T16:29:19+08:00", "utc": "1985-03-05T08:29:19Z", "ms": 478859358834.4683 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1985-03-04T18:52:25+08:00", "utc": "1985-03-04T10:52:25Z", "ms": 478781545405.091 }, "end": { "local": "1985-03-05T16:29:19+08:00", "utc": "1985-03-05T08:29:19Z", "ms": 478859358834.4683 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-03-04", "window": { "start": { "local": "1985-03-04T19:04:00+08:00", "utc": "1985-03-04T11:04:00Z", "ms": 478782240260.8944 }, "end": { "local": "1985-03-04T20:43:00+08:00", "utc": "1985-03-04T12:43:00Z", "ms": 478788179644.863 } }, "covered_min": 99, "window_min": 99, "qualifies": true }, { "local_date": "1985-03-05", "window": { "start": { "local": "1985-03-05T19:04:42+08:00", "utc": "1985-03-05T11:04:42Z", "ms": 478868682263.14575 }, "end": { "local": "1985-03-05T20:43:27+08:00", "utc": "1985-03-05T12:43:27Z", "ms": 478874606826.0341 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:52 on Mon 4 Mar to 16:29 on Tue 5 Mar.", "fact": "1985-03-04T10:52:25Z → 1985-03-05T08:29:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:04–20:43 on the 4th, 19:05–20:43 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 99 of 99 minutes on the 4th and 0 of 99 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 695 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Monday 4 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": "1985-03-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-04", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Monday 4 March. Trayodaśī runs from 18:52 on Mon 4 Mar to 16:29 on Tue 5 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-03-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11560, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-03-06T13:32:43+08:00", "utc": "1985-03-06T05:32:43Z", "ms": 478935162504.7503 }, "end": { "local": "1985-03-07T10:13:07+08:00", "utc": "1985-03-07T02:13:07Z", "ms": 479009586810.92285 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1985-03-06T13:32:43+08:00", "utc": "1985-03-06T05:32:43Z", "ms": 478935162504.7503 }, "end": { "local": "1985-03-07T10:13:07+08:00", "utc": "1985-03-07T02:13:07Z", "ms": 479009586810.92285 } }, "kaala": "sayahna", "days": [ { "local_date": "1985-03-06", "window": { "start": { "local": "1985-03-06T16:45:22+08:00", "utc": "1985-03-06T08:45:22Z", "ms": 478946722449.615 }, "end": { "local": "1985-03-06T19:05:24+08:00", "utc": "1985-03-06T11:05:24Z", "ms": 478955123940.8166 } }, "covered_min": 140, "window_min": 140, "qualifies": true }, { "local_date": "1985-03-07", "window": { "start": { "local": "1985-03-07T16:45:42+08:00", "utc": "1985-03-07T08:45:42Z", "ms": 479033141606.8591 }, "end": { "local": "1985-03-07T19:06:05+08:00", "utc": "1985-03-07T11:06:05Z", "ms": 479041565309.1072 } }, "covered_min": 0, "window_min": 140, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:33 on Wed 6 Mar to 10:13 on Thu 7 Mar.", "fact": "1985-03-06T05:32:43Z → 1985-03-07T02:13:07Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:45–19:05 on the 6th, 16:46–19:06 on the 7th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 140 of 140 minutes on the 6th and 0 of 140 on the 7th.", "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 11560 s" }, { "step": "ruling", "text": "Holikā Dahana, Chengdu, 1985: Wednesday 6 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "holika-dahana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana." } ], "not_evaluated": "The hour the row gives for the rite (\"it should be observed on second half of purnima at night\") is not tested: sāyāhna alone settles the day.", "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-03-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-06", "confidence": "determinate" } ], "quote": "In Chengdu, Holikā Dahana 1985 falls on Wednesday 6 March. Pūrṇimā runs from 13:33 on Wed 6 Mar to 10:13 on Thu 7 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11560, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-03-06T13:32:43+08:00", "utc": "1985-03-06T05:32:43Z", "ms": 478935162504.7503 }, "end": { "local": "1985-03-07T10:13:07+08:00", "utc": "1985-03-07T02:13:07Z", "ms": 479009586810.92285 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1985-03-06T13:32:43+08:00", "utc": "1985-03-06T05:32:43Z", "ms": 478935162504.7503 }, "end": { "local": "1985-03-07T10:13:07+08:00", "utc": "1985-03-07T02:13:07Z", "ms": 479009586810.92285 } }, "kaala": "sayahna", "days": [ { "local_date": "1985-03-06", "window": { "start": { "local": "1985-03-06T16:45:22+08:00", "utc": "1985-03-06T08:45:22Z", "ms": 478946722449.615 }, "end": { "local": "1985-03-06T19:05:24+08:00", "utc": "1985-03-06T11:05:24Z", "ms": 478955123940.8166 } }, "covered_min": 140, "window_min": 140, "qualifies": true }, { "local_date": "1985-03-07", "window": { "start": { "local": "1985-03-07T16:45:42+08:00", "utc": "1985-03-07T08:45:42Z", "ms": 479033141606.8591 }, "end": { "local": "1985-03-07T19:06:05+08:00", "utc": "1985-03-07T11:06:05Z", "ms": 479041565309.1072 } }, "covered_min": 0, "window_min": 140, "qualifies": false } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1985-03-06", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:33 on Wed 6 Mar to 10:13 on Thu 7 Mar.", "fact": "1985-03-06T05:32:43Z → 1985-03-07T02:13:07Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:45–19:05 on the 6th, 16:46–19:06 on the 7th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 140 of 140 minutes on the 6th and 0 of 140 on the 7th.", "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 11560 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Wednesday 6 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Chengdu, 1985: Thursday 7 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": "1985-03-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-07", "confidence": "determinate" } ], "quote": "In Chengdu, Holī 1985 falls on Thursday 7 March. It is kept the day after Holikā Dahana, which falls on Wednesday 6 March. Pūrṇimā runs from 13:33 on Wed 6 Mar to 10:13 on Thu 7 Mar and covers all of sāyāhna on the 6th.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-07", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2489, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1985-03-07T10:13:07+08:00", "utc": "1985-03-07T02:13:07Z", "ms": 479009586810.92285 }, "end": { "local": "1985-03-08T06:41:28+08:00", "utc": "1985-03-07T22:41:28Z", "ms": 479083287759.0519 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-07T10:13:07+08:00", "utc": "1985-03-07T02:13:07Z", "ms": 479009586810.92285 }, "end": { "local": "1985-03-08T06:41:28+08:00", "utc": "1985-03-07T22:41:28Z", "ms": 479083287759.0519 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-03-07", "window": { "start": { "local": "1985-03-07T07:24:07+08:00", "utc": "1985-03-06T23:24:07Z", "ms": 478999446797.86664 }, "end": { "local": "1985-03-07T07:24:07+08:00", "utc": "1985-03-06T23:24:07Z", "ms": 478999446797.86664 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-03-08", "window": { "start": { "local": "1985-03-08T07:22:57+08:00", "utc": "1985-03-07T23:22:57Z", "ms": 479085776612.187 }, "end": { "local": "1985-03-08T07:22:57+08:00", "utc": "1985-03-07T23:22:57Z", "ms": 479085776612.187 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 10:13 on Thu 7 Mar to 06:41 on Fri 8 Mar.", "fact": "1985-03-07T02:13:07Z → 1985-03-07T22:41:28Z" }, { "step": "kaala", "text": "Sunrise is at 07:24 on the 7th and 07:23 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is not on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither sunrise qualifies. The day the tithi falls on is taken.", "fact": "priority: purvaviddha → tithi-day · margin 2489 s" }, { "step": "ruling", "text": "Vasantotsava, Chengdu, 1985: Thursday 7 March.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "1985-03-07", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-07", "confidence": "boundary" } ], "quote": "In Chengdu, Vasantotsava 1985 falls on Thursday 7 March. Pratipadā runs from 10:13 on Thu 7 Mar to 06:41 on Fri 8 Mar, and is current at sunrise on neither day.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-03-09", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-09", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 7109, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-03-09T23:44:16+08:00", "utc": "1985-03-09T15:44:16Z", "ms": 479231055980.3054 }, "end": { "local": "1985-03-10T20:37:43+08:00", "utc": "1985-03-10T12:37:43Z", "ms": 479306262907.238 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-09T23:44:16+08:00", "utc": "1985-03-09T15:44:16Z", "ms": 479231055980.3054 }, "end": { "local": "1985-03-10T20:37:43+08:00", "utc": "1985-03-10T12:37:43Z", "ms": 479306262907.238 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-03-09", "window": { "start": { "local": "1985-03-09T21:45:47+08:00", "utc": "1985-03-09T13:45:47Z", "ms": 479223947301.85236 }, "end": { "local": "1985-03-09T21:45:47+08:00", "utc": "1985-03-09T13:45:47Z", "ms": 479223947301.85236 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-03-10", "window": { "start": { "local": "1985-03-10T22:55:14+08:00", "utc": "1985-03-10T14:55:14Z", "ms": 479314513883.704 }, "end": { "local": "1985-03-10T22:55:14+08:00", "utc": "1985-03-10T14:55:14Z", "ms": 479314513883.704 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:44 on Sat 9 Mar to 20:38 on Sun 10 Mar.", "fact": "1985-03-09T15:44:16Z → 1985-03-10T12:37:43Z" }, { "step": "kaala", "text": "Moonrise is at 21:46 on the 9th and 22:55 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 9th and is not on the 10th.", "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 7109 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Saturday 9 March.", "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": "1985-03-09", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-09", "confidence": "boundary" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Saturday 9 March. Caturthī runs from 23:44 on Sat 9 Mar to 20:38 on Sun 10 Mar, and is current at moonrise on neither day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-03-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1120, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1985-03-13T14:08:58+08:00", "utc": "1985-03-13T06:08:58Z", "ms": 479542138398.01263 }, "end": { "local": "1985-03-14T13:07:58+08:00", "utc": "1985-03-14T05:07:58Z", "ms": 479624877678.6413 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-13T14:08:58+08:00", "utc": "1985-03-13T06:08:58Z", "ms": 479542138398.01263 }, "end": { "local": "1985-03-14T13:07:58+08:00", "utc": "1985-03-14T05:07:58Z", "ms": 479624877678.6413 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-03-13", "window": { "start": { "local": "1985-03-13T12:49:34+08:00", "utc": "1985-03-13T04:49:34Z", "ms": 479537373628.1504 }, "end": { "local": "1985-03-13T13:37:34+08:00", "utc": "1985-03-13T05:37:34Z", "ms": 479540253628.1504 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-03-14", "window": { "start": { "local": "1985-03-14T12:49:17+08:00", "utc": "1985-03-14T04:49:17Z", "ms": 479623757191.87067 }, "end": { "local": "1985-03-14T13:37:17+08:00", "utc": "1985-03-14T05:37:17Z", "ms": 479626637191.87067 } }, "covered_min": 19, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 14:09 on Wed 13 Mar to 13:08 on Thu 14 Mar.", "fact": "1985-03-13T06:08:58Z → 1985-03-14T05:07:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:50–13:38 on the 13th, 12:49–13:37 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 19 of 48 on the 14th.", "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 1120 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Chengdu, 1985: Thursday 14 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": "1985-03-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-13", "confidence": "determinate" } ], "quote": "In Chengdu, Śītalāṣṭamī 1985 falls on Thursday 14 March. Aṣṭamī runs from 14:09 on Wed 13 Mar to 13:08 on Thu 14 Mar and covers 19 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-03-17", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20131, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-03-16T12:48:52+08:00", "utc": "1985-03-16T04:48:52Z", "ms": 479796532346.8943 }, "end": { "local": "1985-03-17T13:25:58+08:00", "utc": "1985-03-17T05:25:58Z", "ms": 479885157617.59283 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-16T12:48:52+08:00", "utc": "1985-03-16T04:48:52Z", "ms": 479796532346.8943 }, "end": { "local": "1985-03-17T13:25:58+08:00", "utc": "1985-03-17T05:25:58Z", "ms": 479885157617.59283 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-03-16", "window": { "start": { "local": "1985-03-16T07:13:21+08:00", "utc": "1985-03-15T23:13:21Z", "ms": 479776400931.4504 }, "end": { "local": "1985-03-16T07:13:21+08:00", "utc": "1985-03-15T23:13:21Z", "ms": 479776400931.4504 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-03-17", "window": { "start": { "local": "1985-03-17T07:12:08+08:00", "utc": "1985-03-16T23:12:08Z", "ms": 479862727641.11975 }, "end": { "local": "1985-03-17T07:12:08+08:00", "utc": "1985-03-16T23:12:08Z", "ms": 479862727641.11975 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:49 on Sat 16 Mar to 13:26 on Sun 17 Mar.", "fact": "1985-03-16T04:48:52Z → 1985-03-17T05:25:58Z" }, { "step": "kaala", "text": "Sunrise is at 07:13 on the 16th and 07:12 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 16th and is on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20131 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Chengdu, 1985: Sunday 17 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": "1985-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-17", "confidence": "determinate" } ], "quote": "In Chengdu, Pāpamocanī Ekādaśī 1985 falls on Sunday 17 March. Ekādaśī runs from 12:49 on Sat 16 Mar to 13:26 on Sun 17 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-03-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-03-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11719, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-03-18T14:30:11+08:00", "utc": "1985-03-18T06:30:11Z", "ms": 479975410735.0687 }, "end": { "local": "1985-03-19T15:58:44+08:00", "utc": "1985-03-19T07:58:44Z", "ms": 480067123766.2496 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-18T14:30:11+08:00", "utc": "1985-03-18T06:30:11Z", "ms": 479975410735.0687 }, "end": { "local": "1985-03-19T15:58:44+08:00", "utc": "1985-03-19T07:58:44Z", "ms": 480067123766.2496 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-03-18", "window": { "start": { "local": "1985-03-18T19:13:24+08:00", "utc": "1985-03-18T11:13:24Z", "ms": 479992404321.02386 }, "end": { "local": "1985-03-18T20:48:54+08:00", "utc": "1985-03-18T12:48:54Z", "ms": 479998134475.39764 } }, "covered_min": 96, "window_min": 96, "qualifies": true }, { "local_date": "1985-03-19", "window": { "start": { "local": "1985-03-19T19:14:03+08:00", "utc": "1985-03-19T11:14:03Z", "ms": 480078843087.385 }, "end": { "local": "1985-03-19T20:49:18+08:00", "utc": "1985-03-19T12:49:18Z", "ms": 480084558230.3715 } }, "covered_min": 0, "window_min": 95, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:30 on Mon 18 Mar to 15:59 on Tue 19 Mar.", "fact": "1985-03-18T06:30:11Z → 1985-03-19T07:58:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:13–20:49 on the 18th, 19:14–20:49 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 96 of 96 minutes on the 18th and 0 of 95 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 11719 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Monday 18 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": "1985-03-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-18", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Monday 18 March. Trayodaśī runs from 14:30 on Mon 18 Mar to 15:59 on Tue 19 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-03-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shivaratri?on=1985-03-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25072, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-03-19T15:58:44+08:00", "utc": "1985-03-19T07:58:44Z", "ms": 480067123766.2496 }, "end": { "local": "1985-03-20T17:49:05+08:00", "utc": "1985-03-20T09:49:05Z", "ms": 480160145458.0528 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-19T15:58:44+08:00", "utc": "1985-03-19T07:58:44Z", "ms": 480067123766.2496 }, "end": { "local": "1985-03-20T17:49:05+08:00", "utc": "1985-03-20T09:49:05Z", "ms": 480160145458.0528 } }, "kaala": "nishita", "days": [ { "local_date": "1985-03-19", "window": { "start": { "local": "1985-03-20T00:47:15+08:00", "utc": "1985-03-19T16:47:15Z", "ms": 480098834873.58435 }, "end": { "local": "1985-03-20T01:35:15+08:00", "utc": "1985-03-19T17:35:15Z", "ms": 480101714873.58435 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-03-20", "window": { "start": { "local": "1985-03-21T00:46:57+08:00", "utc": "1985-03-20T16:46:57Z", "ms": 480185217210.90924 }, "end": { "local": "1985-03-21T01:34:57+08:00", "utc": "1985-03-20T17:34:57Z", "ms": 480188097210.90924 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:59 on Tue 19 Mar to 17:49 on Wed 20 Mar.", "fact": "1985-03-19T07:58:44Z → 1985-03-20T09:49:05Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:47–01:35 on the 19th, 00:47–01:35 on the 20th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25072 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Tuesday 19 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": "1985-03-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-19", "confidence": "determinate" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Tuesday 19 March. Caturdaśī runs from 15:59 on Tue 19 Mar to 17:49 on Wed 20 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/shivaratri?on=1985-03-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23005, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1985-03-21T19:58:42+08:00", "utc": "1985-03-21T11:58:42Z", "ms": 480254321790.7953 }, "end": { "local": "1985-03-22T22:24:18+08:00", "utc": "1985-03-22T14:24:18Z", "ms": 480349457925.3433 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-21T19:58:42+08:00", "utc": "1985-03-21T11:58:42Z", "ms": 480254321790.7953 }, "end": { "local": "1985-03-22T22:24:18+08:00", "utc": "1985-03-22T14:24:18Z", "ms": 480349457925.3433 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-03-21", "window": { "start": { "local": "1985-03-21T12:47:16+08:00", "utc": "1985-03-21T04:47:16Z", "ms": 480228436449.42004 }, "end": { "local": "1985-03-21T13:35:16+08:00", "utc": "1985-03-21T05:35:16Z", "ms": 480231316449.42004 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-03-22", "window": { "start": { "local": "1985-03-22T12:46:59+08:00", "utc": "1985-03-22T04:46:59Z", "ms": 480314818602.08765 }, "end": { "local": "1985-03-22T13:34:59+08:00", "utc": "1985-03-22T05:34:59Z", "ms": 480317698602.08765 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 19:59 on Thu 21 Mar to 22:24 on Fri 22 Mar.", "fact": "1985-03-21T11:58:42Z → 1985-03-22T14:24:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:47–13:35 on the 21st, 12:47–13:35 on the 22nd.", "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 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23005 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Chengdu, 1985: Friday 22 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": "1985-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-22", "confidence": "determinate" } ], "quote": "In Chengdu, Navarātrārambha (Caitra) (Chaitra Navratri) 1985 falls on Friday 22 March. Pratipadā runs from 19:59 on Thu 21 Mar to 22:24 on Fri 22 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32608, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1985-03-24T01:01:12+08:00", "utc": "1985-03-23T17:01:12Z", "ms": 480445272026.50055 }, "end": { "local": "1985-03-25T03:42:36+08:00", "utc": "1985-03-24T19:42:36Z", "ms": 480541356384.9464 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-24T01:01:12+08:00", "utc": "1985-03-23T17:01:12Z", "ms": 480445272026.50055 }, "end": { "local": "1985-03-25T03:42:36+08:00", "utc": "1985-03-24T19:42:36Z", "ms": 480541356384.9464 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-03-24", "window": { "start": { "local": "1985-03-24T12:46:23+08:00", "utc": "1985-03-24T04:46:23Z", "ms": 480487582633.905 }, "end": { "local": "1985-03-24T13:34:23+08:00", "utc": "1985-03-24T05:34:23Z", "ms": 480490462633.905 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-03-25", "window": { "start": { "local": "1985-03-25T12:46:05+08:00", "utc": "1985-03-25T04:46:05Z", "ms": 480573964548.29114 }, "end": { "local": "1985-03-25T13:34:05+08:00", "utc": "1985-03-25T05:34:05Z", "ms": 480576844548.29114 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 01:01 on Sun 24 Mar to 03:43 on Mon 25 Mar.", "fact": "1985-03-23T17:01:12Z → 1985-03-24T19:42:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 24th, 12:46–13:34 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32608 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Chengdu, 1985: Sunday 24 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gauri-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-24", "confidence": "determinate" } ], "quote": "In Chengdu, Gaurī Tṛtīyā (Gangaur) 1985 falls on Sunday 24 March. Tṛtīyā runs from 01:01 on Sun 24 Mar to 03:43 on Mon 25 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32608, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1985-03-24T01:01:12+08:00", "utc": "1985-03-23T17:01:12Z", "ms": 480445272026.50055 }, "end": { "local": "1985-03-25T03:42:36+08:00", "utc": "1985-03-24T19:42:36Z", "ms": 480541356384.9464 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-24T01:01:12+08:00", "utc": "1985-03-23T17:01:12Z", "ms": 480445272026.50055 }, "end": { "local": "1985-03-25T03:42:36+08:00", "utc": "1985-03-24T19:42:36Z", "ms": 480541356384.9464 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-03-24", "window": { "start": { "local": "1985-03-24T12:46:23+08:00", "utc": "1985-03-24T04:46:23Z", "ms": 480487582633.905 }, "end": { "local": "1985-03-24T13:34:23+08:00", "utc": "1985-03-24T05:34:23Z", "ms": 480490462633.905 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-03-25", "window": { "start": { "local": "1985-03-25T12:46:05+08:00", "utc": "1985-03-25T04:46:05Z", "ms": 480573964548.29114 }, "end": { "local": "1985-03-25T13:34:05+08:00", "utc": "1985-03-25T05:34:05Z", "ms": 480576844548.29114 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 01:01 on Sun 24 Mar to 03:43 on Mon 25 Mar.", "fact": "1985-03-23T17:01:12Z → 1985-03-24T19:42:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 24th, 12:46–13:34 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32608 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Chengdu, 1985: Sunday 24 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "saubhagya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-24", "confidence": "determinate" } ], "quote": "In Chengdu, Saubhāgya Śayana Vrata 1985 falls on Sunday 24 March. Tṛtīyā runs from 01:01 on Sun 24 Mar to 03:43 on Mon 25 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-03-25", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23183, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-03-25T03:42:36+08:00", "utc": "1985-03-24T19:42:36Z", "ms": 480541356384.9464 }, "end": { "local": "1985-03-26T06:19:24+08:00", "utc": "1985-03-25T22:19:24Z", "ms": 480637163823.4622 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-25T03:42:36+08:00", "utc": "1985-03-24T19:42:36Z", "ms": 480541356384.9464 }, "end": { "local": "1985-03-26T06:19:24+08:00", "utc": "1985-03-25T22:19:24Z", "ms": 480637163823.4622 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-03-25", "window": { "start": { "local": "1985-03-25T12:46:05+08:00", "utc": "1985-03-25T04:46:05Z", "ms": 480573964548.29114 }, "end": { "local": "1985-03-25T13:34:05+08:00", "utc": "1985-03-25T05:34:05Z", "ms": 480576844548.29114 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-03-26", "window": { "start": { "local": "1985-03-26T12:45:46+08:00", "utc": "1985-03-26T04:45:46Z", "ms": 480660346418.6975 }, "end": { "local": "1985-03-26T13:33:46+08:00", "utc": "1985-03-26T05:33:46Z", "ms": 480663226418.6975 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:43 on Mon 25 Mar to 06:19 on Tue 26 Mar.", "fact": "1985-03-24T19:42:36Z → 1985-03-25T22:19:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 25th, 12:46–13:34 on the 26th.", "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 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23183 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Chengdu, 1985: Monday 25 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": "1985-03-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-25", "confidence": "determinate" } ], "quote": "In Chengdu, Vināyaka Caturthī 1985 falls on Monday 25 March. Caturthī runs from 03:43 on Mon 25 Mar to 06:19 on Tue 26 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-03-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14694, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1985-03-26T06:19:24+08:00", "utc": "1985-03-25T22:19:24Z", "ms": 480637163823.4622 }, "end": { "local": "1985-03-27T08:40:34+08:00", "utc": "1985-03-27T00:40:34Z", "ms": 480732034369.84235 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-26T06:19:24+08:00", "utc": "1985-03-25T22:19:24Z", "ms": 480637163823.4622 }, "end": { "local": "1985-03-27T08:40:34+08:00", "utc": "1985-03-27T00:40:34Z", "ms": 480732034369.84235 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-03-26", "window": { "start": { "local": "1985-03-26T12:45:46+08:00", "utc": "1985-03-26T04:45:46Z", "ms": 480660346418.6975 }, "end": { "local": "1985-03-26T13:33:46+08:00", "utc": "1985-03-26T05:33:46Z", "ms": 480663226418.6975 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-03-27", "window": { "start": { "local": "1985-03-27T12:45:28+08:00", "utc": "1985-03-27T04:45:28Z", "ms": 480746728263.09515 }, "end": { "local": "1985-03-27T13:33:28+08:00", "utc": "1985-03-27T05:33:28Z", "ms": 480749608263.09515 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 06:19 on Tue 26 Mar to 08:41 on Wed 27 Mar.", "fact": "1985-03-25T22:19:24Z → 1985-03-27T00:40:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 26th, 12:45–13:33 on the 27th.", "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 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: purvaviddha → only-day · margin 14694 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Chengdu, 1985: Tuesday 26 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": "1985-03-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-26", "confidence": "determinate" } ], "quote": "In Chengdu, Lakṣmī Pañcamī 1985 falls on Tuesday 26 March. Pañcamī runs from 06:19 on Tue 26 Mar to 08:41 on Wed 27 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1488, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1985-03-29T11:50:12+08:00", "utc": "1985-03-29T03:50:12Z", "ms": 480916212314.94775 }, "end": { "local": "1985-03-30T12:19:45+08:00", "utc": "1985-03-30T04:19:45Z", "ms": 481004385474.1563 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-29T11:50:12+08:00", "utc": "1985-03-29T03:50:12Z", "ms": 480916212314.94775 }, "end": { "local": "1985-03-30T12:19:45+08:00", "utc": "1985-03-30T04:19:45Z", "ms": 481004385474.1563 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-03-29", "window": { "start": { "local": "1985-03-29T12:44:52+08:00", "utc": "1985-03-29T04:44:52Z", "ms": 480919491946.75415 }, "end": { "local": "1985-03-29T13:32:52+08:00", "utc": "1985-03-29T05:32:52Z", "ms": 480922371946.75415 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-03-30", "window": { "start": { "local": "1985-03-30T12:44:34+08:00", "utc": "1985-03-30T04:44:34Z", "ms": 481005873823.12695 }, "end": { "local": "1985-03-30T13:32:34+08:00", "utc": "1985-03-30T05:32:34Z", "ms": 481008753823.12695 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:50 on Fri 29 Mar to 12:20 on Sat 30 Mar.", "fact": "1985-03-29T03:50:12Z → 1985-03-30T04:19:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:45–13:33 on the 29th, 12:45–13:33 on the 30th.", "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 29th and 0 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 1488 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Chengdu, 1985: Friday 29 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": "1985-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-30", "confidence": "boundary" } ], "quote": "In Chengdu, Bhavānī Utpatti 1985 falls on Friday 29 March. Aṣṭamī runs from 11:50 on Fri 29 Mar to 12:20 on Sat 30 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1488, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1985-03-30T12:19:45+08:00", "utc": "1985-03-30T04:19:45Z", "ms": 481004385474.1563 }, "end": { "local": "1985-03-31T11:58:41+08:00", "utc": "1985-03-31T03:58:41Z", "ms": 481089521132.9542 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-03-30T12:19:45+08:00", "utc": "1985-03-30T04:19:45Z", "ms": 481004385474.1563 }, "end": { "local": "1985-03-31T11:58:41+08:00", "utc": "1985-03-31T03:58:41Z", "ms": 481089521132.9542 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-03-30", "window": { "start": { "local": "1985-03-30T12:44:34+08:00", "utc": "1985-03-30T04:44:34Z", "ms": 481005873823.12695 }, "end": { "local": "1985-03-30T13:32:34+08:00", "utc": "1985-03-30T05:32:34Z", "ms": 481008753823.12695 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-03-31", "window": { "start": { "local": "1985-03-31T12:44:16+08:00", "utc": "1985-03-31T04:44:16Z", "ms": 481092255747.89667 }, "end": { "local": "1985-03-31T13:32:16+08:00", "utc": "1985-03-31T05:32:16Z", "ms": 481095135747.89667 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 12:20 on Sat 30 Mar to 11:59 on Sun 31 Mar.", "fact": "1985-03-30T04:19:45Z → 1985-03-31T03:58:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:45–13:33 on the 30th, 12:44–13:32 on the 31st.", "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 30th and 0 of 48 on the 31st.", "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 1488 s" }, { "step": "ruling", "text": "Rāma Navamī, Chengdu, 1985: Saturday 30 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": "1985-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-03-30", "confidence": "boundary" } ], "quote": "In Chengdu, Rāma Navamī 1985 falls on Saturday 30 March. Navamī runs from 12:20 on Sat 30 Mar to 11:59 on Sun 31 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-04-02", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6894, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-04-01T10:46:42+08:00", "utc": "1985-04-01T02:46:42Z", "ms": 481171602464.309 }, "end": { "local": "1985-04-02T08:47:19+08:00", "utc": "1985-04-02T00:47:19Z", "ms": 481250839357.7907 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-04-01T10:46:42+08:00", "utc": "1985-04-01T02:46:42Z", "ms": 481171602464.309 }, "end": { "local": "1985-04-02T08:47:19+08:00", "utc": "1985-04-02T00:47:19Z", "ms": 481250839357.7907 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-04-01", "window": { "start": { "local": "1985-04-01T06:53:39+08:00", "utc": "1985-03-31T22:53:39Z", "ms": 481157618738.7331 }, "end": { "local": "1985-04-01T06:53:39+08:00", "utc": "1985-03-31T22:53:39Z", "ms": 481157618738.7331 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-04-02", "window": { "start": { "local": "1985-04-02T06:52:25+08:00", "utc": "1985-04-01T22:52:25Z", "ms": 481243945389.87256 }, "end": { "local": "1985-04-02T06:52:25+08:00", "utc": "1985-04-01T22:52:25Z", "ms": 481243945389.87256 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:47 on Mon 1 Apr to 08:47 on Tue 2 Apr.", "fact": "1985-04-01T02:46:42Z → 1985-04-02T00:47:19Z" }, { "step": "kaala", "text": "Sunrise is at 06:54 on the 1st and 06:52 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 6894 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Chengdu, 1985: Tuesday 2 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": "1985-04-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-02", "confidence": "determinate" } ], "quote": "In Chengdu, Kāmadā Ekādaśī 1985 falls on Tuesday 2 April. Ekādaśī runs from 10:47 on Mon 1 Apr to 08:47 on Tue 2 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-04-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23780, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-04-03T06:07:02+08:00", "utc": "1985-04-02T22:07:02Z", "ms": 481327621953.35864 }, "end": { "local": "1985-04-04T02:54:26+08:00", "utc": "1985-04-03T18:54:26Z", "ms": 481402466323.3434 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-04-03T06:07:02+08:00", "utc": "1985-04-02T22:07:02Z", "ms": 481327621953.35864 }, "end": { "local": "1985-04-04T02:54:26+08:00", "utc": "1985-04-03T18:54:26Z", "ms": 481402466323.3434 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-04-03", "window": { "start": { "local": "1985-04-03T12:43:22+08:00", "utc": "1985-04-03T04:43:22Z", "ms": 481351402013.6577 }, "end": { "local": "1985-04-03T13:31:22+08:00", "utc": "1985-04-03T05:31:22Z", "ms": 481354282013.6577 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-04-04", "window": { "start": { "local": "1985-04-04T12:43:04+08:00", "utc": "1985-04-04T04:43:04Z", "ms": 481437784337.3917 }, "end": { "local": "1985-04-04T13:31:04+08:00", "utc": "1985-04-04T05:31:04Z", "ms": 481440664337.3917 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:07 on Wed 3 Apr to 02:54 on Thu 4 Apr.", "fact": "1985-04-02T22:07:02Z → 1985-04-03T18:54:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 3rd, 12:43–13:31 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 23780 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Chengdu, 1985: Wednesday 3 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ananga-trayodashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 13 Ananga trayodasi (purvaviddha), Mahavira jayanti (Jain)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-04-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-03", "confidence": "determinate" } ], "quote": "In Chengdu, Anaṅga Trayodaśī 1985 falls on Wednesday 3 April. Trayodaśī runs from 06:07 on Wed 3 Apr to 02:54 on Thu 4 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/pradosha-vrata?on=1985-04-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21563, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-04-03T06:07:02+08:00", "utc": "1985-04-02T22:07:02Z", "ms": 481327621953.35864 }, "end": { "local": "1985-04-04T02:54:26+08:00", "utc": "1985-04-03T18:54:26Z", "ms": 481402466323.3434 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-04-03T06:07:02+08:00", "utc": "1985-04-02T22:07:02Z", "ms": 481327621953.35864 }, "end": { "local": "1985-04-04T02:54:26+08:00", "utc": "1985-04-03T18:54:26Z", "ms": 481402466323.3434 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-04-02", "window": { "start": { "local": "1985-04-02T19:22:54+08:00", "utc": "1985-04-02T11:22:54Z", "ms": 481288974254.5832 }, "end": { "local": "1985-04-02T20:54:41+08:00", "utc": "1985-04-02T12:54:41Z", "ms": 481294480656.88885 } }, "covered_min": 0, "window_min": 92, "qualifies": false }, { "local_date": "1985-04-03", "window": { "start": { "local": "1985-04-03T19:23:32+08:00", "utc": "1985-04-03T11:23:32Z", "ms": 481375411755.4399 }, "end": { "local": "1985-04-03T20:55:03+08:00", "utc": "1985-04-03T12:55:03Z", "ms": 481380903443.3421 } }, "covered_min": 92, "window_min": 92, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:07 on Wed 3 Apr to 02:54 on Thu 4 Apr.", "fact": "1985-04-02T22:07:02Z → 1985-04-03T18:54:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:23–20:55 on the 2nd, 19:24–20:55 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 92 minutes on the 2nd and 92 of 92 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21563 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Wednesday 3 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": "1985-04-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-03", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Wednesday 3 April. Trayodaśī runs from 06:07 on Wed 3 Apr to 02:54 on Thu 4 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-04-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35300, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-04-04T02:54:26+08:00", "utc": "1985-04-03T18:54:26Z", "ms": 481402466323.3434 }, "end": { "local": "1985-04-04T23:19:25+08:00", "utc": "1985-04-04T15:19:25Z", "ms": 481475964767.2132 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-04-04T02:54:26+08:00", "utc": "1985-04-03T18:54:26Z", "ms": 481402466323.3434 }, "end": { "local": "1985-04-04T23:19:25+08:00", "utc": "1985-04-04T15:19:25Z", "ms": 481475964767.2132 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-04-03", "window": { "start": { "local": "1985-04-03T12:43:22+08:00", "utc": "1985-04-03T04:43:22Z", "ms": 481351402013.6577 }, "end": { "local": "1985-04-03T13:31:22+08:00", "utc": "1985-04-03T05:31:22Z", "ms": 481354282013.6577 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-04-04", "window": { "start": { "local": "1985-04-04T12:43:04+08:00", "utc": "1985-04-04T04:43:04Z", "ms": 481437784337.3917 }, "end": { "local": "1985-04-04T13:31:04+08:00", "utc": "1985-04-04T05:31:04Z", "ms": 481440664337.3917 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:54 on Thu 4 Apr to 23:19 on Thu 4 Apr.", "fact": "1985-04-03T18:54:26Z → 1985-04-04T15:19:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 3rd, 12:43–13:31 on the 4th.", "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 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35300 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Chengdu, 1985: Thursday 4 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vishnu-damanaka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Madanabhanji, (Bengal & Orissa) (paraviddha), Sivadamanaka caturdasi, Visnudamanaka caturdasi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-04", "confidence": "determinate" } ], "quote": "In Chengdu, Viṣṇudamanaka Caturdaśī 1985 falls on Thursday 4 April. Caturdaśī runs from 02:54 on Thu 4 Apr to 23:19 on Thu 4 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21699, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-04-04T23:19:25+08:00", "utc": "1985-04-04T15:19:25Z", "ms": 481475964767.2132 }, "end": { "local": "1985-04-05T19:32:26+08:00", "utc": "1985-04-05T11:32:26Z", "ms": 481548745896.8483 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1985-04-04T23:19:25+08:00", "utc": "1985-04-04T15:19:25Z", "ms": 481475964767.2132 }, "end": { "local": "1985-04-05T19:32:26+08:00", "utc": "1985-04-05T11:32:26Z", "ms": 481548745896.8483 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-04-04", "window": { "start": { "local": "1985-04-04T12:43:04+08:00", "utc": "1985-04-04T04:43:04Z", "ms": 481437784337.3917 }, "end": { "local": "1985-04-04T13:31:04+08:00", "utc": "1985-04-04T05:31:04Z", "ms": 481440664337.3917 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-04-05", "window": { "start": { "local": "1985-04-05T12:42:47+08:00", "utc": "1985-04-05T04:42:47Z", "ms": 481524166816.5078 }, "end": { "local": "1985-04-05T13:30:47+08:00", "utc": "1985-04-05T05:30:47Z", "ms": 481527046816.5078 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:19 on Thu 4 Apr to 19:32 on Fri 5 Apr.", "fact": "1985-04-04T15:19:25Z → 1985-04-05T11:32:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 4th, 12:43–13:31 on the 5th.", "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 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21699 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Chengdu, 1985: Friday 5 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chaitri-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Caitri purnima (paraviddha), Hanumat jayanti, Oli ending (Jain)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-05", "confidence": "determinate" } ], "quote": "In Chengdu, Caitrī Pūrṇimā 1985 falls on Friday 5 April. Pūrṇimā runs from 23:19 on Thu 4 Apr to 19:32 on Fri 5 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-04-08", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24803, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-04-08T08:43:40+08:00", "utc": "1985-04-08T00:43:40Z", "ms": 481769020251.09094 }, "end": { "local": "1985-04-09T05:49:52+08:00", "utc": "1985-04-08T21:49:52Z", "ms": 481844992103.4307 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-04-08T08:43:40+08:00", "utc": "1985-04-08T00:43:40Z", "ms": 481769020251.09094 }, "end": { "local": "1985-04-09T05:49:52+08:00", "utc": "1985-04-08T21:49:52Z", "ms": 481844992103.4307 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-04-07", "window": { "start": { "local": "1985-04-07T21:44:12+08:00", "utc": "1985-04-07T13:44:12Z", "ms": 481729452290.69867 }, "end": { "local": "1985-04-07T21:44:12+08:00", "utc": "1985-04-07T13:44:12Z", "ms": 481729452290.69867 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-04-08", "window": { "start": { "local": "1985-04-08T22:56:30+08:00", "utc": "1985-04-08T14:56:30Z", "ms": 481820189570.2247 }, "end": { "local": "1985-04-08T22:56:30+08:00", "utc": "1985-04-08T14:56:30Z", "ms": 481820189570.2247 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:44 on Mon 8 Apr to 05:50 on Tue 9 Apr.", "fact": "1985-04-08T00:43:40Z → 1985-04-08T21:49:52Z" }, { "step": "kaala", "text": "Moonrise is at 21:44 on the 7th and 22:56 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 7th and is on the 8th.", "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 24803 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Monday 8 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": "1985-04-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-08", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Monday 8 April. Caturthī runs from 08:44 on Mon 8 Apr to 05:50 on Tue 9 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-04-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25402, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1985-04-13T23:34:50+08:00", "utc": "1985-04-13T15:34:50Z", "ms": 482254489869.5361 }, "end": { "local": "1985-05-14T20:30:56+08:00", "utc": "1985-05-14T12:30:56Z", "ms": 484921856009.2297 } }, "span": { "of": "transit", "start": { "local": "1985-04-13T23:34:50+08:00", "utc": "1985-04-13T15:34:50Z", "ms": 482254489869.5361 }, "end": { "local": "1985-04-13T23:34:50+08:00", "utc": "1985-04-13T15:34:50Z", "ms": 482254489869.5361 } }, "kaala": "day", "days": [ { "local_date": "1985-04-13", "window": { "start": { "local": "1985-04-13T06:39:20+08:00", "utc": "1985-04-12T22:39:20Z", "ms": 482193560410.4772 }, "end": { "local": "1985-04-14T06:38:12+08:00", "utc": "1985-04-13T22:38:12Z", "ms": 482279891801.1545 } }, "covered_min": 1, "window_min": 1439, "qualifies": true }, { "local_date": "1985-04-14", "window": { "start": { "local": "1985-04-14T06:38:12+08:00", "utc": "1985-04-13T22:38:12Z", "ms": 482279891801.1545 }, "end": { "local": "1985-04-15T06:37:04+08:00", "utc": "1985-04-14T22:37:04Z", "ms": 482366223770.7883 } }, "covered_min": 0, "window_min": 1439, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 23:35 on Sat 13 Apr.", "fact": "1985-04-13T15:34:50Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:39 on the 13th, and from 06:38 on the 14th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 13th, not the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 25402 s" }, { "step": "ruling", "text": "Vaiśākhī, Chengdu, 1985: Saturday 13 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1985-04-13", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1985-04-14", "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 Chengdu, Vaiśākhī 1985 falls on Saturday 13 April. The Sun enters Meṣa at 23:35 on Sat 13 Apr, and the rule counts the day from sunrise. By the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 14 April.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-04-15", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9933, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-04-15T02:13:21+08:00", "utc": "1985-04-14T18:13:21Z", "ms": 482350400997.5843 }, "end": { "local": "1985-04-16T03:50:24+08:00", "utc": "1985-04-15T19:50:24Z", "ms": 482442623766.8975 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-04-15T02:13:21+08:00", "utc": "1985-04-14T18:13:21Z", "ms": 482350400997.5843 }, "end": { "local": "1985-04-16T03:50:24+08:00", "utc": "1985-04-15T19:50:24Z", "ms": 482442623766.8975 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-04-15", "window": { "start": { "local": "1985-04-15T06:37:04+08:00", "utc": "1985-04-14T22:37:04Z", "ms": 482366223770.7883 }, "end": { "local": "1985-04-15T06:37:04+08:00", "utc": "1985-04-14T22:37:04Z", "ms": 482366223770.7883 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-04-16", "window": { "start": { "local": "1985-04-16T06:35:56+08:00", "utc": "1985-04-15T22:35:56Z", "ms": 482452556345.185 }, "end": { "local": "1985-04-16T06:35:56+08:00", "utc": "1985-04-15T22:35:56Z", "ms": 482452556345.185 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:13 on Mon 15 Apr to 03:50 on Tue 16 Apr.", "fact": "1985-04-14T18:13:21Z → 1985-04-15T19:50:24Z" }, { "step": "kaala", "text": "Sunrise is at 06:37 on the 15th and 06:36 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 15th and is not on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9933 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Chengdu, 1985: Monday 15 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": "1985-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-15", "confidence": "determinate" } ], "quote": "In Chengdu, Varūthinī Ekādaśī 1985 falls on Monday 15 April. Ekādaśī runs from 02:13 on Mon 15 Apr to 03:50 on Tue 16 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-04-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-04-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31943, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-04-17T05:52:32+08:00", "utc": "1985-04-16T21:52:32Z", "ms": 482536351897.6693 }, "end": { "local": "1985-04-18T08:12:55+08:00", "utc": "1985-04-18T00:12:55Z", "ms": 482631175010.9819 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-04-17T05:52:32+08:00", "utc": "1985-04-16T21:52:32Z", "ms": 482536351897.6693 }, "end": { "local": "1985-04-18T08:12:55+08:00", "utc": "1985-04-18T00:12:55Z", "ms": 482631175010.9819 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-04-16", "window": { "start": { "local": "1985-04-16T19:31:45+08:00", "utc": "1985-04-16T11:31:45Z", "ms": 482499104554.6705 }, "end": { "local": "1985-04-16T21:00:09+08:00", "utc": "1985-04-16T13:00:09Z", "ms": 482504409220.6796 } }, "covered_min": 0, "window_min": 88, "qualifies": false }, { "local_date": "1985-04-17", "window": { "start": { "local": "1985-04-17T19:32:23+08:00", "utc": "1985-04-17T11:32:23Z", "ms": 482585543174.7871 }, "end": { "local": "1985-04-17T21:00:34+08:00", "utc": "1985-04-17T13:00:34Z", "ms": 482590833872.7452 } }, "covered_min": 88, "window_min": 88, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:53 on Wed 17 Apr to 08:13 on Thu 18 Apr.", "fact": "1985-04-16T21:52:32Z → 1985-04-18T00:12:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:32–21:00 on the 16th, 19:32–21:01 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 88 minutes on the 16th and 88 of 88 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31943 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Wednesday 17 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": "1985-04-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-17", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Wednesday 17 April. Trayodaśī runs from 05:53 on Wed 17 Apr to 08:13 on Thu 18 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-04-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shivaratri?on=1985-04-18", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24352, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-04-18T08:12:55+08:00", "utc": "1985-04-18T00:12:55Z", "ms": 482631175010.9819 }, "end": { "local": "1985-04-19T10:44:52+08:00", "utc": "1985-04-19T02:44:52Z", "ms": 482726692438.7959 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-04-18T08:12:55+08:00", "utc": "1985-04-18T00:12:55Z", "ms": 482631175010.9819 }, "end": { "local": "1985-04-19T10:44:52+08:00", "utc": "1985-04-19T02:44:52Z", "ms": 482726692438.7959 } }, "kaala": "nishita", "days": [ { "local_date": "1985-04-17", "window": { "start": { "local": "1985-04-18T00:39:03+08:00", "utc": "1985-04-17T16:39:03Z", "ms": 482603943292.12994 }, "end": { "local": "1985-04-18T01:27:03+08:00", "utc": "1985-04-17T17:27:03Z", "ms": 482606823292.12994 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-04-18", "window": { "start": { "local": "1985-04-19T00:38:50+08:00", "utc": "1985-04-18T16:38:50Z", "ms": 482690329930.18176 }, "end": { "local": "1985-04-19T01:26:50+08:00", "utc": "1985-04-18T17:26:50Z", "ms": 482693209930.18176 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:13 on Thu 18 Apr to 10:45 on Fri 19 Apr.", "fact": "1985-04-18T00:12:55Z → 1985-04-19T02:44:52Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:39–01:27 on the 17th, 00:39–01:27 on the 18th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24352 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Thursday 18 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": "1985-04-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-18", "confidence": "determinate" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Thursday 18 April. Caturdaśī runs from 08:13 on Thu 18 Apr to 10:45 on Fri 19 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/shivaratri?on=1985-04-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27253, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1985-04-22T18:25:43+08:00", "utc": "1985-04-22T10:25:43Z", "ms": 483013543238.6597 }, "end": { "local": "1985-04-23T20:38:43+08:00", "utc": "1985-04-23T12:38:43Z", "ms": 483107922819.623 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-04-22T18:25:43+08:00", "utc": "1985-04-22T10:25:43Z", "ms": 483013543238.6597 }, "end": { "local": "1985-04-23T20:38:43+08:00", "utc": "1985-04-23T12:38:43Z", "ms": 483107922819.623 } }, "kaala": "purvahna", "days": [ { "local_date": "1985-04-22", "window": { "start": { "local": "1985-04-22T06:29:26+08:00", "utc": "1985-04-21T22:29:26Z", "ms": 482970565889.9641 }, "end": { "local": "1985-04-22T10:51:30+08:00", "utc": "1985-04-22T02:51:30Z", "ms": 482986289918.67725 } }, "covered_min": 0, "window_min": 262, "qualifies": false }, { "local_date": "1985-04-23", "window": { "start": { "local": "1985-04-23T06:28:23+08:00", "utc": "1985-04-22T22:28:23Z", "ms": 483056903390.8507 }, "end": { "local": "1985-04-23T10:51:01+08:00", "utc": "1985-04-23T02:51:01Z", "ms": 483072661344.88916 } }, "covered_min": 263, "window_min": 263, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 18:26 on Mon 22 Apr to 20:39 on Tue 23 Apr.", "fact": "1985-04-22T10:25:43Z → 1985-04-23T12:38:43Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:29–10:51 on the 22nd, 06:28–10:51 on the 23rd.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 0 of 262 minutes on the 22nd and 263 of 263 on the 23rd.", "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 27253 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Chengdu, 1985: Tuesday 23 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.", "kaala": "purvahna", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-23", "confidence": "determinate" } ], "quote": "In Chengdu, Akṣaya Tṛtīyā 1985 falls on Tuesday 23 April. Tṛtīyā runs from 18:26 on Mon 22 Apr to 20:39 on Tue 23 Apr and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1463, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1985-04-22T18:25:43+08:00", "utc": "1985-04-22T10:25:43Z", "ms": 483013543238.6597 }, "end": { "local": "1985-04-23T20:38:43+08:00", "utc": "1985-04-23T12:38:43Z", "ms": 483107922819.623 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-04-22T18:25:43+08:00", "utc": "1985-04-22T10:25:43Z", "ms": 483013543238.6597 }, "end": { "local": "1985-04-23T20:38:43+08:00", "utc": "1985-04-23T12:38:43Z", "ms": 483107922819.623 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-04-22", "window": { "start": { "local": "1985-04-22T19:35:38+08:00", "utc": "1985-04-22T11:35:38Z", "ms": 483017737976.1036 }, "end": { "local": "1985-04-22T21:02:40+08:00", "utc": "1985-04-22T13:02:40Z", "ms": 483022960031.4032 } }, "covered_min": 87, "window_min": 87, "qualifies": true }, { "local_date": "1985-04-23", "window": { "start": { "local": "1985-04-23T19:36:17+08:00", "utc": "1985-04-23T11:36:17Z", "ms": 483104177252.966 }, "end": { "local": "1985-04-23T21:03:06+08:00", "utc": "1985-04-23T13:03:06Z", "ms": 483109385844.7878 } }, "covered_min": 62, "window_min": 87, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 18:26 on Mon 22 Apr to 20:39 on Tue 23 Apr.", "fact": "1985-04-22T10:25:43Z → 1985-04-23T12:38:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:36–21:03 on the 22nd, 19:36–21:03 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 87 of 87 minutes on the 22nd and 62 of 87 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both evenings qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 1463 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Chengdu, 1985: Tuesday 23 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-23", "confidence": "determinate" } ], "quote": "In Chengdu, Paraśurāma Jayantī 1985 falls on Tuesday 23 April. Tṛtīyā runs from 18:26 on Mon 22 Apr to 20:39 on Tue 23 Apr and covers 62 of 87 minutes of pradoṣa that evening. It also reaches the previous evening for 87 minutes; by the rule the second evening is taken.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-04-24", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25942, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-04-23T20:38:43+08:00", "utc": "1985-04-23T12:38:43Z", "ms": 483107922819.623 }, "end": { "local": "1985-04-24T22:29:23+08:00", "utc": "1985-04-24T14:29:23Z", "ms": 483200962791.5648 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-04-23T20:38:43+08:00", "utc": "1985-04-23T12:38:43Z", "ms": 483107922819.623 }, "end": { "local": "1985-04-24T22:29:23+08:00", "utc": "1985-04-24T14:29:23Z", "ms": 483200962791.5648 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-04-23", "window": { "start": { "local": "1985-04-23T12:38:20+08:00", "utc": "1985-04-23T04:38:20Z", "ms": 483079100321.9083 }, "end": { "local": "1985-04-23T13:26:20+08:00", "utc": "1985-04-23T05:26:20Z", "ms": 483081980321.9083 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-04-24", "window": { "start": { "local": "1985-04-24T12:38:09+08:00", "utc": "1985-04-24T04:38:09Z", "ms": 483165489157.6091 }, "end": { "local": "1985-04-24T13:26:09+08:00", "utc": "1985-04-24T05:26:09Z", "ms": 483168369157.6091 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:39 on Tue 23 Apr to 22:29 on Wed 24 Apr.", "fact": "1985-04-23T12:38:43Z → 1985-04-24T14:29:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 23rd, 12:38–13:26 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25942 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Chengdu, 1985: Wednesday 24 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": "1985-04-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-24", "confidence": "determinate" } ], "quote": "In Chengdu, Vināyaka Caturthī 1985 falls on Wednesday 24 April. Caturthī runs from 20:39 on Tue 23 Apr to 22:29 on Wed 24 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-04-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32594, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1985-04-24T22:29:23+08:00", "utc": "1985-04-24T14:29:23Z", "ms": 483200962791.5648 }, "end": { "local": "1985-04-25T23:50:26+08:00", "utc": "1985-04-25T15:50:26Z", "ms": 483292225837.8218 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-04-24T22:29:23+08:00", "utc": "1985-04-24T14:29:23Z", "ms": 483200962791.5648 }, "end": { "local": "1985-04-25T23:50:26+08:00", "utc": "1985-04-25T15:50:26Z", "ms": 483292225837.8218 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-04-24", "window": { "start": { "local": "1985-04-24T12:38:09+08:00", "utc": "1985-04-24T04:38:09Z", "ms": 483165489157.6091 }, "end": { "local": "1985-04-24T13:26:09+08:00", "utc": "1985-04-24T05:26:09Z", "ms": 483168369157.6091 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-04-25", "window": { "start": { "local": "1985-04-25T12:37:58+08:00", "utc": "1985-04-25T04:37:58Z", "ms": 483251878448.7031 }, "end": { "local": "1985-04-25T13:25:58+08:00", "utc": "1985-04-25T05:25:58Z", "ms": 483254758448.7031 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:29 on Wed 24 Apr to 23:50 on Thu 25 Apr.", "fact": "1985-04-24T14:29:23Z → 1985-04-25T15:50:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 24th, 12:38–13:26 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 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: unstated → only-day · margin 32594 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Chengdu, 1985: Thursday 25 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-25", "confidence": "determinate" } ], "quote": "In Chengdu, Śaṅkara Jayantī 1985 falls on Thursday 25 April. Pañcamī runs from 22:29 on Wed 24 Apr to 23:50 on Thu 25 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-04-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40175, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1985-04-27T00:35:23+08:00", "utc": "1985-04-26T16:35:23Z", "ms": 483381323396.0281 }, "end": { "local": "1985-04-28T00:39:24+08:00", "utc": "1985-04-27T16:39:24Z", "ms": 483467964276.53 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-04-27T00:35:23+08:00", "utc": "1985-04-26T16:35:23Z", "ms": 483381323396.0281 }, "end": { "local": "1985-04-28T00:39:24+08:00", "utc": "1985-04-27T16:39:24Z", "ms": 483467964276.53 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-04-26", "window": { "start": { "local": "1985-04-26T12:37:48+08:00", "utc": "1985-04-26T04:37:48Z", "ms": 483338268203.47675 }, "end": { "local": "1985-04-26T13:25:48+08:00", "utc": "1985-04-26T05:25:48Z", "ms": 483341148203.47675 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-04-27", "window": { "start": { "local": "1985-04-27T12:37:38+08:00", "utc": "1985-04-27T04:37:38Z", "ms": 483424658430.031 }, "end": { "local": "1985-04-27T13:25:38+08:00", "utc": "1985-04-27T05:25:38Z", "ms": 483427538430.031 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 00:35 on Sat 27 Apr to 00:39 on Sun 28 Apr.", "fact": "1985-04-26T16:35:23Z → 1985-04-27T16:39:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 26th, 12:38–13:26 on the 27th.", "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 26th and 48 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: purvaviddha → only-day · margin 40175 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Chengdu, 1985: Saturday 27 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-04-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-04-27", "confidence": "determinate" } ], "quote": "In Chengdu, Gaṅgotpatti (Ganga Saptami) 1985 falls on Saturday 27 April. Saptamī runs from 00:35 on Sat 27 Apr to 00:39 on Sun 28 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-05-01", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35234, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-04-30T20:33:20+08:00", "utc": "1985-04-30T12:33:20Z", "ms": 483712400186.1778 }, "end": { "local": "1985-05-01T17:53:57+08:00", "utc": "1985-05-01T09:53:57Z", "ms": 483789236808.91895 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-04-30T20:33:20+08:00", "utc": "1985-04-30T12:33:20Z", "ms": 483712400186.1778 }, "end": { "local": "1985-05-01T17:53:57+08:00", "utc": "1985-05-01T09:53:57Z", "ms": 483789236808.91895 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-05-01", "window": { "start": { "local": "1985-05-01T06:20:34+08:00", "utc": "1985-04-30T22:20:34Z", "ms": 483747634194.48645 }, "end": { "local": "1985-05-01T06:20:34+08:00", "utc": "1985-04-30T22:20:34Z", "ms": 483747634194.48645 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-05-02", "window": { "start": { "local": "1985-05-02T06:19:40+08:00", "utc": "1985-05-01T22:19:40Z", "ms": 483833979757.4603 }, "end": { "local": "1985-05-02T06:19:40+08:00", "utc": "1985-05-01T22:19:40Z", "ms": 483833979757.4603 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:33 on Tue 30 Apr to 17:54 on Wed 1 May.", "fact": "1985-04-30T12:33:20Z → 1985-05-01T09:53:57Z" }, { "step": "kaala", "text": "Sunrise is at 06:21 on the 1st and 06:20 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35234 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Chengdu, 1985: Wednesday 1 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": "1985-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-01", "confidence": "determinate" } ], "quote": "In Chengdu, Mohinī Ekādaśī 1985 falls on Wednesday 1 May. Ekādaśī runs from 20:33 on Tue 30 Apr to 17:54 on Wed 1 May and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-05-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4842, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1985-05-01T17:53:57+08:00", "utc": "1985-05-01T09:53:57Z", "ms": 483789236808.91895 }, "end": { "local": "1985-05-02T14:45:39+08:00", "utc": "1985-05-02T06:45:39Z", "ms": 483864339008.20496 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-01T17:53:57+08:00", "utc": "1985-05-01T09:53:57Z", "ms": 483789236808.91895 }, "end": { "local": "1985-05-02T14:45:39+08:00", "utc": "1985-05-02T06:45:39Z", "ms": 483864339008.20496 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-05-01", "window": { "start": { "local": "1985-05-01T12:37:04+08:00", "utc": "1985-05-01T04:37:04Z", "ms": 483770224217.5454 }, "end": { "local": "1985-05-01T13:25:04+08:00", "utc": "1985-05-01T05:25:04Z", "ms": 483773104217.5454 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-05-02", "window": { "start": { "local": "1985-05-02T12:36:57+08:00", "utc": "1985-05-02T04:36:57Z", "ms": 483856616928.5052 }, "end": { "local": "1985-05-02T13:24:57+08:00", "utc": "1985-05-02T05:24:57Z", "ms": 483859496928.5052 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 17:54 on Wed 1 May to 14:46 on Thu 2 May.", "fact": "1985-05-01T09:53:57Z → 1985-05-02T06:45:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 1st, 12:37–13:25 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4842 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Chengdu, 1985: Thursday 2 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": "1985-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-02", "confidence": "determinate" } ], "quote": "In Chengdu, Paraśurāma Dvādaśī 1985 falls on Thursday 2 May. Dvādaśī runs from 17:54 on Wed 1 May to 14:46 on Thu 2 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4842, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1985-05-01T17:53:57+08:00", "utc": "1985-05-01T09:53:57Z", "ms": 483789236808.91895 }, "end": { "local": "1985-05-02T14:45:39+08:00", "utc": "1985-05-02T06:45:39Z", "ms": 483864339008.20496 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-01T17:53:57+08:00", "utc": "1985-05-01T09:53:57Z", "ms": 483789236808.91895 }, "end": { "local": "1985-05-02T14:45:39+08:00", "utc": "1985-05-02T06:45:39Z", "ms": 483864339008.20496 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-05-01", "window": { "start": { "local": "1985-05-01T12:37:04+08:00", "utc": "1985-05-01T04:37:04Z", "ms": 483770224217.5454 }, "end": { "local": "1985-05-01T13:25:04+08:00", "utc": "1985-05-01T05:25:04Z", "ms": 483773104217.5454 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-05-02", "window": { "start": { "local": "1985-05-02T12:36:57+08:00", "utc": "1985-05-02T04:36:57Z", "ms": 483856616928.5052 }, "end": { "local": "1985-05-02T13:24:57+08:00", "utc": "1985-05-02T05:24:57Z", "ms": 483859496928.5052 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 17:54 on Wed 1 May to 14:46 on Thu 2 May.", "fact": "1985-05-01T09:53:57Z → 1985-05-02T06:45:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 1st, 12:37–13:25 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4842 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Chengdu, 1985: Thursday 2 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": "1985-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-02", "confidence": "determinate" } ], "quote": "In Chengdu, Rukmiṇī Dvādaśī 1985 falls on Thursday 2 May. Dvādaśī runs from 17:54 on Wed 1 May to 14:46 on Thu 2 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/pradosha-vrata?on=1985-05-02", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17795, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-05-02T14:45:39+08:00", "utc": "1985-05-02T06:45:39Z", "ms": 483864339008.20496 }, "end": { "local": "1985-05-03T11:16:36+08:00", "utc": "1985-05-03T03:16:36Z", "ms": 483938195917.9482 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-02T14:45:39+08:00", "utc": "1985-05-02T06:45:39Z", "ms": 483864339008.20496 }, "end": { "local": "1985-05-03T11:16:36+08:00", "utc": "1985-05-03T03:16:36Z", "ms": 483938195917.9482 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-05-02", "window": { "start": { "local": "1985-05-02T19:42:14+08:00", "utc": "1985-05-02T11:42:14Z", "ms": 483882134099.55005 }, "end": { "local": "1985-05-02T21:07:06+08:00", "utc": "1985-05-02T13:07:06Z", "ms": 483887226398.2726 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "1985-05-03", "window": { "start": { "local": "1985-05-03T19:42:54+08:00", "utc": "1985-05-03T11:42:54Z", "ms": 483968573989.4484 }, "end": { "local": "1985-05-03T21:07:34+08:00", "utc": "1985-05-03T13:07:34Z", "ms": 483973653986.55597 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:46 on Thu 2 May to 11:17 on Fri 3 May.", "fact": "1985-05-02T06:45:39Z → 1985-05-03T03:16:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:42–21:07 on the 2nd, 19:43–21:08 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 85 of 85 minutes on the 2nd and 0 of 85 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17795 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Thursday 2 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": "1985-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-02", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Thursday 2 May. Trayodaśī runs from 14:46 on Thu 2 May to 11:17 on Fri 3 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-05-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30378, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-05-03T11:16:36+08:00", "utc": "1985-05-03T03:16:36Z", "ms": 483938195917.9482 }, "end": { "local": "1985-05-04T07:35:49+08:00", "utc": "1985-05-03T23:35:49Z", "ms": 484011348939.81195 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-03T11:16:36+08:00", "utc": "1985-05-03T03:16:36Z", "ms": 483938195917.9482 }, "end": { "local": "1985-05-04T07:35:49+08:00", "utc": "1985-05-03T23:35:49Z", "ms": 484011348939.81195 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-05-03", "window": { "start": { "local": "1985-05-03T19:42:54+08:00", "utc": "1985-05-03T11:42:54Z", "ms": 483968573989.4484 }, "end": { "local": "1985-05-03T21:07:34+08:00", "utc": "1985-05-03T13:07:34Z", "ms": 483973653986.55597 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "1985-05-04", "window": { "start": { "local": "1985-05-04T19:43:34+08:00", "utc": "1985-05-04T11:43:34Z", "ms": 484055013905.71985 }, "end": { "local": "1985-05-04T21:08:02+08:00", "utc": "1985-05-04T13:08:02Z", "ms": 484060081740.49567 } }, "covered_min": 0, "window_min": 84, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:17 on Fri 3 May to 07:36 on Sat 4 May.", "fact": "1985-05-03T03:16:36Z → 1985-05-03T23:35:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:43–21:08 on the 3rd, 19:44–21:08 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 85 of 85 minutes on the 3rd and 0 of 84 on the 4th.", "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 30378 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Chengdu, 1985: Friday 3 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": "1985-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-03", "confidence": "determinate" } ], "quote": "In Chengdu, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1985 falls on Friday 3 May. Caturdaśī runs from 11:17 on Fri 3 May to 07:36 on Sat 4 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18055, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-05-04T07:35:49+08:00", "utc": "1985-05-03T23:35:49Z", "ms": 484011348939.81195 }, "end": { "local": "1985-05-05T03:52:49+08:00", "utc": "1985-05-04T19:52:49Z", "ms": 484084369167.8304 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-04T07:35:49+08:00", "utc": "1985-05-03T23:35:49Z", "ms": 484011348939.81195 }, "end": { "local": "1985-05-05T03:52:49+08:00", "utc": "1985-05-04T19:52:49Z", "ms": 484084369167.8304 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-05-04", "window": { "start": { "local": "1985-05-04T12:36:44+08:00", "utc": "1985-05-04T04:36:44Z", "ms": 484029403936.73755 }, "end": { "local": "1985-05-04T13:24:44+08:00", "utc": "1985-05-04T05:24:44Z", "ms": 484032283936.73755 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-05-05", "window": { "start": { "local": "1985-05-05T12:36:38+08:00", "utc": "1985-05-05T04:36:38Z", "ms": 484115798255.04663 }, "end": { "local": "1985-05-05T13:24:38+08:00", "utc": "1985-05-05T05:24:38Z", "ms": 484118678255.04663 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:36 on Sat 4 May to 03:53 on Sun 5 May.", "fact": "1985-05-03T23:35:49Z → 1985-05-04T19:52:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 4th, 12:37–13:25 on the 5th.", "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 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18055 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Chengdu, 1985: Saturday 4 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": "1985-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-04", "confidence": "determinate" } ], "quote": "In Chengdu, Buddha Pūrṇimā 1985 falls on Saturday 4 May. Pūrṇimā runs from 07:36 on Sat 4 May to 03:53 on Sun 5 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18055, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-05-04T07:35:49+08:00", "utc": "1985-05-03T23:35:49Z", "ms": 484011348939.81195 }, "end": { "local": "1985-05-05T03:52:49+08:00", "utc": "1985-05-04T19:52:49Z", "ms": 484084369167.8304 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-04T07:35:49+08:00", "utc": "1985-05-03T23:35:49Z", "ms": 484011348939.81195 }, "end": { "local": "1985-05-05T03:52:49+08:00", "utc": "1985-05-04T19:52:49Z", "ms": 484084369167.8304 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-05-04", "window": { "start": { "local": "1985-05-04T12:36:44+08:00", "utc": "1985-05-04T04:36:44Z", "ms": 484029403936.73755 }, "end": { "local": "1985-05-04T13:24:44+08:00", "utc": "1985-05-04T05:24:44Z", "ms": 484032283936.73755 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-05-05", "window": { "start": { "local": "1985-05-05T12:36:38+08:00", "utc": "1985-05-05T04:36:38Z", "ms": 484115798255.04663 }, "end": { "local": "1985-05-05T13:24:38+08:00", "utc": "1985-05-05T05:24:38Z", "ms": 484118678255.04663 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:36 on Sat 4 May to 03:53 on Sun 5 May.", "fact": "1985-05-03T23:35:49Z → 1985-05-04T19:52:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 4th, 12:37–13:25 on the 5th.", "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 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18055 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Chengdu, 1985: Saturday 4 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": "1985-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-04", "confidence": "determinate" } ], "quote": "In Chengdu, Sampat Gaurī Vrata 1985 falls on Saturday 4 May. Pūrṇimā runs from 07:36 on Sat 4 May to 03:53 on Sun 5 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-05-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17276, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-05-07T18:06:34+08:00", "utc": "1985-05-07T10:06:34Z", "ms": 484308394318.61145 }, "end": { "local": "1985-05-08T15:48:41+08:00", "utc": "1985-05-08T07:48:41Z", "ms": 484386520928.3274 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-07T18:06:34+08:00", "utc": "1985-05-07T10:06:34Z", "ms": 484308394318.61145 }, "end": { "local": "1985-05-08T15:48:41+08:00", "utc": "1985-05-08T07:48:41Z", "ms": 484386520928.3274 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-05-07", "window": { "start": { "local": "1985-05-07T22:54:30+08:00", "utc": "1985-05-07T14:54:30Z", "ms": 484325670094.6269 }, "end": { "local": "1985-05-07T22:54:30+08:00", "utc": "1985-05-07T14:54:30Z", "ms": 484325670094.6269 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-05-08", "window": { "start": { "local": "1985-05-08T23:58:22+08:00", "utc": "1985-05-08T15:58:22Z", "ms": 484415902225.90936 }, "end": { "local": "1985-05-08T23:58:22+08:00", "utc": "1985-05-08T15:58:22Z", "ms": 484415902225.90936 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:07 on Tue 7 May to 15:49 on Wed 8 May.", "fact": "1985-05-07T10:06:34Z → 1985-05-08T07:48:41Z" }, { "step": "kaala", "text": "Moonrise is at 22:55 on the 7th and 23:58 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 7th and is not on the 8th.", "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 17276 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Tuesday 7 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": "1985-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-07", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Tuesday 7 May. Caturthī runs from 18:07 on Tue 7 May to 15:49 on Wed 8 May and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-05-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ekadashi?on=1985-05-15", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37460, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-05-14T17:23:11+08:00", "utc": "1985-05-14T09:23:11Z", "ms": 484910591407.382 }, "end": { "local": "1985-05-15T19:44:36+08:00", "utc": "1985-05-15T11:44:36Z", "ms": 485005475713.0198 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-14T17:23:11+08:00", "utc": "1985-05-14T09:23:11Z", "ms": 484910591407.382 }, "end": { "local": "1985-05-15T19:44:36+08:00", "utc": "1985-05-15T11:44:36Z", "ms": 485005475713.0198 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-05-15", "window": { "start": { "local": "1985-05-15T06:09:34+08:00", "utc": "1985-05-14T22:09:34Z", "ms": 484956573873.843 }, "end": { "local": "1985-05-15T06:09:34+08:00", "utc": "1985-05-14T22:09:34Z", "ms": 484956573873.843 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-05-16", "window": { "start": { "local": "1985-05-16T06:08:56+08:00", "utc": "1985-05-15T22:08:56Z", "ms": 485042935880.952 }, "end": { "local": "1985-05-16T06:08:56+08:00", "utc": "1985-05-15T22:08:56Z", "ms": 485042935880.952 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:23 on Tue 14 May to 19:45 on Wed 15 May.", "fact": "1985-05-14T09:23:11Z → 1985-05-15T11:44:36Z" }, { "step": "kaala", "text": "Sunrise is at 06:10 on the 15th and 06:09 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 15th and is not on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 37460 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Chengdu, 1985: Wednesday 15 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": "1985-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-15", "confidence": "determinate" } ], "quote": "In Chengdu, Aparā Ekādaśī 1985 falls on Wednesday 15 May. Ekādaśī runs from 17:23 on Tue 14 May to 19:45 on Wed 15 May and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-05-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-05-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3897, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-05-16T22:18:43+08:00", "utc": "1985-05-16T14:18:43Z", "ms": 485101122842.6898 }, "end": { "local": "1985-05-18T00:55:13+08:00", "utc": "1985-05-17T16:55:13Z", "ms": 485196912572.8854 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-16T22:18:43+08:00", "utc": "1985-05-16T14:18:43Z", "ms": 485101122842.6898 }, "end": { "local": "1985-05-18T00:55:13+08:00", "utc": "1985-05-17T16:55:13Z", "ms": 485196912572.8854 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-05-16", "window": { "start": { "local": "1985-05-16T19:51:31+08:00", "utc": "1985-05-16T11:51:31Z", "ms": 485092291332.08765 }, "end": { "local": "1985-05-16T21:13:46+08:00", "utc": "1985-05-16T13:13:46Z", "ms": 485097225715.78046 } }, "covered_min": 0, "window_min": 82, "qualifies": false }, { "local_date": "1985-05-17", "window": { "start": { "local": "1985-05-17T19:52:10+08:00", "utc": "1985-05-17T11:52:10Z", "ms": 485178730460.8926 }, "end": { "local": "1985-05-17T21:14:15+08:00", "utc": "1985-05-17T13:14:15Z", "ms": 485183654915.97675 } }, "covered_min": 82, "window_min": 82, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:19 on Thu 16 May to 00:55 on Sat 18 May.", "fact": "1985-05-16T14:18:43Z → 1985-05-17T16:55:13Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:52–21:14 on the 16th, 19:52–21:14 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 82 minutes on the 16th and 82 of 82 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3897 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Friday 17 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": "1985-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-17", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Friday 17 May. Trayodaśī runs from 22:19 on Thu 16 May to 00:55 on Sat 18 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-05-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shivaratri?on=1985-05-18", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-18", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1155, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-05-18T00:55:13+08:00", "utc": "1985-05-17T16:55:13Z", "ms": 485196912572.8854 }, "end": { "local": "1985-05-19T03:25:06+08:00", "utc": "1985-05-18T19:25:06Z", "ms": 485292305525.8321 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-18T00:55:13+08:00", "utc": "1985-05-17T16:55:13Z", "ms": 485196912572.8854 }, "end": { "local": "1985-05-19T03:25:06+08:00", "utc": "1985-05-18T19:25:06Z", "ms": 485292305525.8321 } }, "kaala": "nishita", "days": [ { "local_date": "1985-05-17", "window": { "start": { "local": "1985-05-18T00:35:57+08:00", "utc": "1985-05-17T16:35:57Z", "ms": 485195757167.4583 }, "end": { "local": "1985-05-18T01:23:57+08:00", "utc": "1985-05-17T17:23:57Z", "ms": 485198637167.4583 } }, "covered_min": 29, "window_min": 48, "qualifies": true }, { "local_date": "1985-05-18", "window": { "start": { "local": "1985-05-19T00:36:00+08:00", "utc": "1985-05-18T16:36:00Z", "ms": 485282159632.5405 }, "end": { "local": "1985-05-19T01:24:00+08:00", "utc": "1985-05-18T17:24:00Z", "ms": 485285039632.5405 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 00:55 on Sat 18 May to 03:25 on Sun 19 May.", "fact": "1985-05-17T16:55:13Z → 1985-05-18T19:25:06Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:36–01:24 on the 17th, 00:36–01:24 on the 18th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 29 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": "Both nights qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 1155 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Saturday 18 May.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-05-18", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-18", "confidence": "boundary" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Saturday 18 May. Caturdaśī runs from 00:55 on Sat 18 May to 03:25 on Sun 19 May and covers all of niśītha that night. It also reaches the previous night for 29 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/chengdu/festivals/1985/shivaratri?on=1985-05-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8351, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1985-05-22T09:10:54+08:00", "utc": "1985-05-22T01:10:54Z", "ms": 485572254127.79285 }, "end": { "local": "1985-05-23T10:17:23+08:00", "utc": "1985-05-23T02:17:23Z", "ms": 485662642857.15027 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-22T09:10:54+08:00", "utc": "1985-05-22T01:10:54Z", "ms": 485572254127.79285 }, "end": { "local": "1985-05-23T10:17:23+08:00", "utc": "1985-05-23T02:17:23Z", "ms": 485662642857.15027 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-05-22", "window": { "start": { "local": "1985-05-22T12:36:29+08:00", "utc": "1985-05-22T04:36:29Z", "ms": 485584589237.5632 }, "end": { "local": "1985-05-22T13:24:29+08:00", "utc": "1985-05-22T05:24:29Z", "ms": 485587469237.5632 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-05-23", "window": { "start": { "local": "1985-05-23T12:36:34+08:00", "utc": "1985-05-23T04:36:34Z", "ms": 485670993698.8784 }, "end": { "local": "1985-05-23T13:24:34+08:00", "utc": "1985-05-23T05:24:34Z", "ms": 485673873698.8784 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 09:11 on Wed 22 May to 10:17 on Thu 23 May.", "fact": "1985-05-22T01:10:54Z → 1985-05-23T02:17:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 22nd, 12:37–13:25 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8351 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Chengdu, 1985: Wednesday 22 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rambha-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Rambha trtiya (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-22", "confidence": "determinate" } ], "quote": "In Chengdu, Rambhā Tṛtīyā 1985 falls on Wednesday 22 May. Tṛtīyā runs from 09:11 on Wed 22 May to 10:17 on Thu 23 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-05-23", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6112, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-05-23T10:17:23+08:00", "utc": "1985-05-23T02:17:23Z", "ms": 485662642857.15027 }, "end": { "local": "1985-05-24T10:54:47+08:00", "utc": "1985-05-24T02:54:47Z", "ms": 485751286588.2217 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-23T10:17:23+08:00", "utc": "1985-05-23T02:17:23Z", "ms": 485662642857.15027 }, "end": { "local": "1985-05-24T10:54:47+08:00", "utc": "1985-05-24T02:54:47Z", "ms": 485751286588.2217 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-05-23", "window": { "start": { "local": "1985-05-23T12:36:34+08:00", "utc": "1985-05-23T04:36:34Z", "ms": 485670993698.8784 }, "end": { "local": "1985-05-23T13:24:34+08:00", "utc": "1985-05-23T05:24:34Z", "ms": 485673873698.8784 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-05-24", "window": { "start": { "local": "1985-05-24T12:36:39+08:00", "utc": "1985-05-24T04:36:39Z", "ms": 485757398659.2953 }, "end": { "local": "1985-05-24T13:24:39+08:00", "utc": "1985-05-24T05:24:39Z", "ms": 485760278659.2953 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:17 on Thu 23 May to 10:55 on Fri 24 May.", "fact": "1985-05-23T02:17:23Z → 1985-05-24T02:54:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 23rd, 12:37–13:25 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6112 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Chengdu, 1985: Thursday 23 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": "1985-05-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-23", "confidence": "determinate" } ], "quote": "In Chengdu, Vināyaka Caturthī 1985 falls on Thursday 23 May. Caturthī runs from 10:17 on Thu 23 May to 10:55 on Fri 24 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-05-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5731, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1985-05-25T11:01:13+08:00", "utc": "1985-05-25T03:01:13Z", "ms": 485838073389.4074 }, "end": { "local": "1985-05-26T10:35:28+08:00", "utc": "1985-05-26T02:35:28Z", "ms": 485922928225.0937 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-25T11:01:13+08:00", "utc": "1985-05-25T03:01:13Z", "ms": 485838073389.4074 }, "end": { "local": "1985-05-26T10:35:28+08:00", "utc": "1985-05-26T02:35:28Z", "ms": 485922928225.0937 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-05-25", "window": { "start": { "local": "1985-05-25T12:36:44+08:00", "utc": "1985-05-25T04:36:44Z", "ms": 485843804105.5528 }, "end": { "local": "1985-05-25T13:24:44+08:00", "utc": "1985-05-25T05:24:44Z", "ms": 485846684105.5528 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-05-26", "window": { "start": { "local": "1985-05-26T12:36:50+08:00", "utc": "1985-05-26T04:36:50Z", "ms": 485930210024.0557 }, "end": { "local": "1985-05-26T13:24:50+08:00", "utc": "1985-05-26T05:24:50Z", "ms": 485933090024.0557 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 11:01 on Sat 25 May to 10:35 on Sun 26 May.", "fact": "1985-05-25T03:01:13Z → 1985-05-26T02:35:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 25th, 12:37–13:25 on the 26th.", "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 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5731 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Chengdu, 1985: Saturday 25 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aranya-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-25", "confidence": "determinate" } ], "quote": "In Chengdu, Araṇya Gaurī Vrata 1985 falls on Saturday 25 May. Ṣaṣṭhī runs from 11:01 on Sat 25 May to 10:35 on Sun 26 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5731, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1985-05-25T11:01:13+08:00", "utc": "1985-05-25T03:01:13Z", "ms": 485838073389.4074 }, "end": { "local": "1985-05-26T10:35:28+08:00", "utc": "1985-05-26T02:35:28Z", "ms": 485922928225.0937 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-25T11:01:13+08:00", "utc": "1985-05-25T03:01:13Z", "ms": 485838073389.4074 }, "end": { "local": "1985-05-26T10:35:28+08:00", "utc": "1985-05-26T02:35:28Z", "ms": 485922928225.0937 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-05-25", "window": { "start": { "local": "1985-05-25T12:36:44+08:00", "utc": "1985-05-25T04:36:44Z", "ms": 485843804105.5528 }, "end": { "local": "1985-05-25T13:24:44+08:00", "utc": "1985-05-25T05:24:44Z", "ms": 485846684105.5528 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-05-26", "window": { "start": { "local": "1985-05-26T12:36:50+08:00", "utc": "1985-05-26T04:36:50Z", "ms": 485930210024.0557 }, "end": { "local": "1985-05-26T13:24:50+08:00", "utc": "1985-05-26T05:24:50Z", "ms": 485933090024.0557 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 11:01 on Sat 25 May to 10:35 on Sun 26 May.", "fact": "1985-05-25T03:01:13Z → 1985-05-26T02:35:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 25th, 12:37–13:25 on the 26th.", "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 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5731 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Chengdu, 1985: Saturday 25 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi-jyaishtha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-25", "confidence": "determinate" } ], "quote": "In Chengdu, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1985 falls on Saturday 25 May. Ṣaṣṭhī runs from 11:01 on Sat 25 May to 10:35 on Sun 26 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-05-30", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8669, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-05-30T03:37:59+08:00", "utc": "1985-05-29T19:37:59Z", "ms": 486243479018.2742 }, "end": { "local": "1985-05-31T00:47:31+08:00", "utc": "1985-05-30T16:47:31Z", "ms": 486319651462.34796 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-30T03:37:59+08:00", "utc": "1985-05-29T19:37:59Z", "ms": 486243479018.2742 }, "end": { "local": "1985-05-31T00:47:31+08:00", "utc": "1985-05-30T16:47:31Z", "ms": 486319651462.34796 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-05-30", "window": { "start": { "local": "1985-05-30T06:02:28+08:00", "utc": "1985-05-29T22:02:28Z", "ms": 486252147565.7821 }, "end": { "local": "1985-05-30T06:02:28+08:00", "utc": "1985-05-29T22:02:28Z", "ms": 486252147565.7821 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-05-31", "window": { "start": { "local": "1985-05-31T06:02:10+08:00", "utc": "1985-05-30T22:02:10Z", "ms": 486338530389.22955 }, "end": { "local": "1985-05-31T06:02:10+08:00", "utc": "1985-05-30T22:02:10Z", "ms": 486338530389.22955 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:38 on Thu 30 May to 00:48 on Fri 31 May.", "fact": "1985-05-29T19:37:59Z → 1985-05-30T16:47:31Z" }, { "step": "kaala", "text": "Sunrise is at 06:02 on the 30th and 06:02 on the 31st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8669 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Chengdu, 1985: Thursday 30 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": "1985-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-30", "confidence": "determinate" } ], "quote": "In Chengdu, Nirjalā Ekādaśī 1985 falls on Thursday 30 May. Ekādaśī runs from 03:38 on Thu 30 May to 00:48 on Fri 31 May and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-05-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29687, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1985-05-31T00:47:31+08:00", "utc": "1985-05-30T16:47:31Z", "ms": 486319651462.34796 }, "end": { "local": "1985-05-31T21:40:14+08:00", "utc": "1985-05-31T13:40:14Z", "ms": 486394813693.17773 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-31T00:47:31+08:00", "utc": "1985-05-30T16:47:31Z", "ms": 486319651462.34796 }, "end": { "local": "1985-05-31T21:40:14+08:00", "utc": "1985-05-31T13:40:14Z", "ms": 486394813693.17773 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-05-30", "window": { "start": { "local": "1985-05-30T12:37:18+08:00", "utc": "1985-05-30T04:37:18Z", "ms": 486275838149.4259 }, "end": { "local": "1985-05-30T13:25:18+08:00", "utc": "1985-05-30T05:25:18Z", "ms": 486278718149.4259 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-05-31", "window": { "start": { "local": "1985-05-31T12:37:26+08:00", "utc": "1985-05-31T04:37:26Z", "ms": 486362246229.074 }, "end": { "local": "1985-05-31T13:25:26+08:00", "utc": "1985-05-31T05:25:26Z", "ms": 486365126229.074 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 00:48 on Fri 31 May to 21:40 on Fri 31 May.", "fact": "1985-05-30T16:47:31Z → 1985-05-31T13:40:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 30th, 12:37–13:25 on the 31st.", "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 30th and 48 of 48 on the 31st.", "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 29687 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Chengdu, 1985: Friday 31 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-rama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-05-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-31", "confidence": "determinate" } ], "quote": "In Chengdu, Śrī Rāma Dvādaśī 1985 falls on Friday 31 May. Dvādaśī runs from 00:48 on Fri 31 May to 21:40 on Fri 31 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/pradosha-vrata?on=1985-05-31", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-05-31", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1162, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-05-31T21:40:14+08:00", "utc": "1985-05-31T13:40:14Z", "ms": 486394813693.17773 }, "end": { "local": "1985-06-01T18:22:58+08:00", "utc": "1985-06-01T10:22:58Z", "ms": 486469378301.8586 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-05-31T21:40:14+08:00", "utc": "1985-05-31T13:40:14Z", "ms": 486394813693.17773 }, "end": { "local": "1985-06-01T18:22:58+08:00", "utc": "1985-06-01T10:22:58Z", "ms": 486469378301.8586 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-05-31", "window": { "start": { "local": "1985-05-31T20:00:42+08:00", "utc": "1985-05-31T12:00:42Z", "ms": 486388842068.91833 }, "end": { "local": "1985-05-31T21:20:52+08:00", "utc": "1985-05-31T13:20:52Z", "ms": 486393651746.08624 } }, "covered_min": 0, "window_min": 80, "qualifies": false }, { "local_date": "1985-06-01", "window": { "start": { "local": "1985-06-01T20:01:15+08:00", "utc": "1985-06-01T12:01:15Z", "ms": 486475274760.3511 }, "end": { "local": "1985-06-01T21:21:18+08:00", "utc": "1985-06-01T13:21:18Z", "ms": 486480078171.4973 } }, "covered_min": 0, "window_min": 80, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:40 on Fri 31 May to 18:23 on Sat 1 Jun.", "fact": "1985-05-31T13:40:14Z → 1985-06-01T10:22:58Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:01–21:21 on the 31st, 20:01–21:21 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 80 minutes on the 31st and 0 of 80 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 1162 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Friday 31 May.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-05-31", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-05-31", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Friday 31 May. Trayodaśī runs from 21:40 on Fri 31 May to 18:23 on Sat 1 Jun, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-05-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17894, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-06-02T15:03:33+08:00", "utc": "1985-06-02T07:03:33Z", "ms": 486543812868.0705 }, "end": { "local": "1985-06-03T11:50:26+08:00", "utc": "1985-06-03T03:50:26Z", "ms": 486618626414.26984 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-02T15:03:33+08:00", "utc": "1985-06-02T07:03:33Z", "ms": 486543812868.0705 }, "end": { "local": "1985-06-03T11:50:26+08:00", "utc": "1985-06-03T03:50:26Z", "ms": 486618626414.26984 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-06-02", "window": { "start": { "local": "1985-06-02T20:01:47+08:00", "utc": "1985-06-02T12:01:47Z", "ms": 486561706781.5171 }, "end": { "local": "1985-06-02T21:21:44+08:00", "utc": "1985-06-02T13:21:44Z", "ms": 486566504208.12524 } }, "covered_min": 80, "window_min": 80, "qualifies": true }, { "local_date": "1985-06-03", "window": { "start": { "local": "1985-06-03T20:02:18+08:00", "utc": "1985-06-03T12:02:18Z", "ms": 486648138107.00073 }, "end": { "local": "1985-06-03T21:22:10+08:00", "utc": "1985-06-03T13:22:10Z", "ms": 486652929834.22296 } }, "covered_min": 0, "window_min": 80, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:04 on Sun 2 Jun to 11:50 on Mon 3 Jun.", "fact": "1985-06-02T07:03:33Z → 1985-06-03T03:50:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:02–21:22 on the 2nd, 20:02–21:22 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 80 of 80 minutes on the 2nd and 0 of 80 on the 3rd.", "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 17894 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Chengdu, 1985: Sunday 2 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": "1985-06-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-02", "confidence": "determinate" } ], "quote": "In Chengdu, Vaṭa Sāvitrī Vrata 1985 falls on Sunday 2 June. Pūrṇimā runs from 15:04 on Sun 2 Jun to 11:50 on Mon 3 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-06-06", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12327, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-06-06T04:17:49+08:00", "utc": "1985-06-05T20:17:49Z", "ms": 486850668597.4408 }, "end": { "local": "1985-06-07T02:56:54+08:00", "utc": "1985-06-06T18:56:54Z", "ms": 486932213625.16205 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-06T04:17:49+08:00", "utc": "1985-06-05T20:17:49Z", "ms": 486850668597.4408 }, "end": { "local": "1985-06-07T02:56:54+08:00", "utc": "1985-06-06T18:56:54Z", "ms": 486932213625.16205 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-06-05", "window": { "start": { "local": "1985-06-05T22:39:51+08:00", "utc": "1985-06-05T14:39:51Z", "ms": 486830390570.8834 }, "end": { "local": "1985-06-05T22:39:51+08:00", "utc": "1985-06-05T14:39:51Z", "ms": 486830390570.8834 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-06-06", "window": { "start": { "local": "1985-06-06T23:31:27+08:00", "utc": "1985-06-06T15:31:27Z", "ms": 486919886663.5574 }, "end": { "local": "1985-06-06T23:31:27+08:00", "utc": "1985-06-06T15:31:27Z", "ms": 486919886663.5574 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:18 on Thu 6 Jun to 02:57 on Fri 7 Jun.", "fact": "1985-06-05T20:17:49Z → 1985-06-06T18:56:54Z" }, { "step": "kaala", "text": "Moonrise is at 22:40 on the 5th and 23:31 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12327 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Thursday 6 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": "1985-06-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-06", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Thursday 6 June. Caturthī runs from 04:18 on Thu 6 Jun to 02:57 on Fri 7 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-06-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ekadashi?on=1985-06-14", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14076, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-06-13T09:55:14+08:00", "utc": "1985-06-13T01:55:14Z", "ms": 487475714043.5087 }, "end": { "local": "1985-06-14T12:29:46+08:00", "utc": "1985-06-14T04:29:46Z", "ms": 487571386228.62463 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-13T09:55:14+08:00", "utc": "1985-06-13T01:55:14Z", "ms": 487475714043.5087 }, "end": { "local": "1985-06-14T12:29:46+08:00", "utc": "1985-06-14T04:29:46Z", "ms": 487571386228.62463 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-06-13", "window": { "start": { "local": "1985-06-13T06:00:38+08:00", "utc": "1985-06-12T22:00:38Z", "ms": 487461637913.7296 }, "end": { "local": "1985-06-13T06:00:38+08:00", "utc": "1985-06-12T22:00:38Z", "ms": 487461637913.7296 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-06-14", "window": { "start": { "local": "1985-06-14T06:00:41+08:00", "utc": "1985-06-13T22:00:41Z", "ms": 487548040722.5281 }, "end": { "local": "1985-06-14T06:00:41+08:00", "utc": "1985-06-13T22:00:41Z", "ms": 487548040722.5281 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:55 on Thu 13 Jun to 12:30 on Fri 14 Jun.", "fact": "1985-06-13T01:55:14Z → 1985-06-14T04:29:46Z" }, { "step": "kaala", "text": "Sunrise is at 06:01 on the 13th and 06:01 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 13th and is on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14076 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Chengdu, 1985: Friday 14 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": "1985-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-14", "confidence": "determinate" } ], "quote": "In Chengdu, Yoginī Ekādaśī 1985 falls on Friday 14 June. Ekādaśī runs from 09:55 on Thu 13 Jun to 12:30 on Fri 14 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-06-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-06-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11052, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-06-15T14:56:01+08:00", "utc": "1985-06-15T06:56:01Z", "ms": 487666561175.03217 }, "end": { "local": "1985-06-16T17:03:37+08:00", "utc": "1985-06-16T09:03:37Z", "ms": 487760616508.1957 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-15T14:56:01+08:00", "utc": "1985-06-15T06:56:01Z", "ms": 487666561175.03217 }, "end": { "local": "1985-06-16T17:03:37+08:00", "utc": "1985-06-16T09:03:37Z", "ms": 487760616508.1957 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-06-15", "window": { "start": { "local": "1985-06-15T20:07:29+08:00", "utc": "1985-06-15T12:07:29Z", "ms": 487685249313.59753 }, "end": { "local": "1985-06-15T21:26:36+08:00", "utc": "1985-06-15T13:26:36Z", "ms": 487689996125.9047 } }, "covered_min": 79, "window_min": 79, "qualifies": true }, { "local_date": "1985-06-16", "window": { "start": { "local": "1985-06-16T20:07:49+08:00", "utc": "1985-06-16T12:07:49Z", "ms": 487771668915.51996 }, "end": { "local": "1985-06-16T21:26:54+08:00", "utc": "1985-06-16T13:26:54Z", "ms": 487776414025.67535 } }, "covered_min": 0, "window_min": 79, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:56 on Sat 15 Jun to 17:04 on Sun 16 Jun.", "fact": "1985-06-15T06:56:01Z → 1985-06-16T09:03:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:07–21:27 on the 15th, 20:08–21:27 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 79 of 79 minutes on the 15th and 0 of 79 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11052 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Saturday 15 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": "1985-06-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-15", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Saturday 15 June. Trayodaśī runs from 14:56 on Sat 15 Jun to 17:04 on Sun 16 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-06-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shivaratri?on=1985-06-16", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21307, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-06-16T17:03:37+08:00", "utc": "1985-06-16T09:03:37Z", "ms": 487760616508.1957 }, "end": { "local": "1985-06-17T18:45:29+08:00", "utc": "1985-06-17T10:45:29Z", "ms": 487853129481.71606 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-16T17:03:37+08:00", "utc": "1985-06-16T09:03:37Z", "ms": 487760616508.1957 }, "end": { "local": "1985-06-17T18:45:29+08:00", "utc": "1985-06-17T10:45:29Z", "ms": 487853129481.71606 } }, "kaala": "nishita", "days": [ { "local_date": "1985-06-16", "window": { "start": { "local": "1985-06-17T00:40:23+08:00", "utc": "1985-06-16T16:40:23Z", "ms": 487788023078.60266 }, "end": { "local": "1985-06-17T01:28:23+08:00", "utc": "1985-06-16T17:28:23Z", "ms": 487790903078.60266 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-06-17", "window": { "start": { "local": "1985-06-18T00:40:36+08:00", "utc": "1985-06-17T16:40:36Z", "ms": 487874436386.688 }, "end": { "local": "1985-06-18T01:28:36+08:00", "utc": "1985-06-17T17:28:36Z", "ms": 487877316386.688 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:04 on Sun 16 Jun to 18:45 on Mon 17 Jun.", "fact": "1985-06-16T09:03:37Z → 1985-06-17T10:45:29Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:40–01:28 on the 16th, 00:41–01:29 on the 17th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21307 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Sunday 16 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-06-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-16", "confidence": "determinate" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Sunday 16 June. Caturdaśī runs from 17:04 on Sun 16 Jun to 18:45 on Mon 17 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/shivaratri?on=1985-06-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25863, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1985-06-19T20:40:00+08:00", "utc": "1985-06-19T12:40:00Z", "ms": 488032800377.8727 }, "end": { "local": "1985-06-20T20:52:38+08:00", "utc": "1985-06-20T12:52:38Z", "ms": 488119957565.73895 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-19T20:40:00+08:00", "utc": "1985-06-19T12:40:00Z", "ms": 488032800377.8727 }, "end": { "local": "1985-06-20T20:52:38+08:00", "utc": "1985-06-20T12:52:38Z", "ms": 488119957565.73895 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-06-19", "window": { "start": { "local": "1985-06-19T12:40:58+08:00", "utc": "1985-06-19T04:40:58Z", "ms": 488004057828.67615 }, "end": { "local": "1985-06-19T13:28:58+08:00", "utc": "1985-06-19T05:28:58Z", "ms": 488006937828.67615 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-06-20", "window": { "start": { "local": "1985-06-20T12:41:11+08:00", "utc": "1985-06-20T04:41:11Z", "ms": 488090470626.0398 }, "end": { "local": "1985-06-20T13:29:11+08:00", "utc": "1985-06-20T05:29:11Z", "ms": 488093350626.0398 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 20:40 on Wed 19 Jun to 20:53 on Thu 20 Jun.", "fact": "1985-06-19T12:40:00Z → 1985-06-20T12:52:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:41–13:29 on the 19th, 12:41–13:29 on the 20th.", "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 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: paraviddha → only-day · margin 25863 s" }, { "step": "ruling", "text": "Rathayātrā, Chengdu, 1985: Thursday 20 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rathayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')" } ], "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-06-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-20", "confidence": "determinate" } ], "quote": "In Chengdu, Rathayātrā 1985 falls on Thursday 20 June. Dvitīyā runs from 20:40 on Wed 19 Jun to 20:53 on Thu 20 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-06-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23308, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-06-21T20:37:51+08:00", "utc": "1985-06-21T12:37:51Z", "ms": 488205470547.8857 }, "end": { "local": "1985-06-22T19:58:05+08:00", "utc": "1985-06-22T11:58:05Z", "ms": 488289484551.6402 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-21T20:37:51+08:00", "utc": "1985-06-21T12:37:51Z", "ms": 488205470547.8857 }, "end": { "local": "1985-06-22T19:58:05+08:00", "utc": "1985-06-22T11:58:05Z", "ms": 488289484551.6402 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-06-21", "window": { "start": { "local": "1985-06-21T12:41:23+08:00", "utc": "1985-06-21T04:41:23Z", "ms": 488176883414.652 }, "end": { "local": "1985-06-21T13:29:23+08:00", "utc": "1985-06-21T05:29:23Z", "ms": 488179763414.652 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-06-22", "window": { "start": { "local": "1985-06-22T12:41:36+08:00", "utc": "1985-06-22T04:41:36Z", "ms": 488263296166.78455 }, "end": { "local": "1985-06-22T13:29:36+08:00", "utc": "1985-06-22T05:29:36Z", "ms": 488266176166.78455 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:38 on Fri 21 Jun to 19:58 on Sat 22 Jun.", "fact": "1985-06-21T12:37:51Z → 1985-06-22T11:58:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:41–13:29 on the 21st, 12:42–13:30 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23308 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Chengdu, 1985: Saturday 22 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": "1985-06-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-22", "confidence": "determinate" } ], "quote": "In Chengdu, Vināyaka Caturthī 1985 falls on Saturday 22 June. Caturthī runs from 20:38 on Fri 21 Jun to 19:58 on Sat 22 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-06-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19551, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1985-06-22T19:58:05+08:00", "utc": "1985-06-22T11:58:05Z", "ms": 488289484551.6402 }, "end": { "local": "1985-06-23T18:55:39+08:00", "utc": "1985-06-23T10:55:39Z", "ms": 488372139384.40393 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-22T19:58:05+08:00", "utc": "1985-06-22T11:58:05Z", "ms": 488289484551.6402 }, "end": { "local": "1985-06-23T18:55:39+08:00", "utc": "1985-06-23T10:55:39Z", "ms": 488372139384.40393 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-06-22", "window": { "start": { "local": "1985-06-22T12:41:36+08:00", "utc": "1985-06-22T04:41:36Z", "ms": 488263296166.78455 }, "end": { "local": "1985-06-22T13:29:36+08:00", "utc": "1985-06-22T05:29:36Z", "ms": 488266176166.78455 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-06-23", "window": { "start": { "local": "1985-06-23T12:41:49+08:00", "utc": "1985-06-23T04:41:49Z", "ms": 488349708855.0924 }, "end": { "local": "1985-06-23T13:29:49+08:00", "utc": "1985-06-23T05:29:49Z", "ms": 488352588855.0924 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 19:58 on Sat 22 Jun to 18:56 on Sun 23 Jun.", "fact": "1985-06-22T11:58:05Z → 1985-06-23T10:55:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 22nd, 12:42–13:30 on the 23rd.", "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 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19551 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Chengdu, 1985: Sunday 23 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Skanda pancami (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-06-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-23", "confidence": "determinate" } ], "quote": "In Chengdu, Skanda Pañcamī 1985 falls on Sunday 23 June. Pañcamī runs from 19:58 on Sat 22 Jun to 18:56 on Sun 23 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8423, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1985-06-24T17:32:36+08:00", "utc": "1985-06-24T09:32:36Z", "ms": 488453555873.6243 }, "end": { "local": "1985-06-25T15:50:36+08:00", "utc": "1985-06-25T07:50:36Z", "ms": 488533836498.481 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-24T17:32:36+08:00", "utc": "1985-06-24T09:32:36Z", "ms": 488453555873.6243 }, "end": { "local": "1985-06-25T15:50:36+08:00", "utc": "1985-06-25T07:50:36Z", "ms": 488533836498.481 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-06-24", "window": { "start": { "local": "1985-06-24T12:42:01+08:00", "utc": "1985-06-24T04:42:01Z", "ms": 488436121452.9271 }, "end": { "local": "1985-06-24T13:30:01+08:00", "utc": "1985-06-24T05:30:01Z", "ms": 488439001452.9271 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-06-25", "window": { "start": { "local": "1985-06-25T12:42:14+08:00", "utc": "1985-06-25T04:42:14Z", "ms": 488522533934.631 }, "end": { "local": "1985-06-25T13:30:14+08:00", "utc": "1985-06-25T05:30:14Z", "ms": 488525413934.631 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 17:33 on Mon 24 Jun to 15:51 on Tue 25 Jun.", "fact": "1985-06-24T09:32:36Z → 1985-06-25T07:50:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:42–13:30 on the 24th, 12:42–13:30 on the 25th.", "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 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 8423 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Chengdu, 1985: Tuesday 25 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vivasvat-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Vivasvat saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-06-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-25", "confidence": "determinate" } ], "quote": "In Chengdu, Vivasvat Saptamī 1985 falls on Tuesday 25 June. Saptamī runs from 17:33 on Mon 24 Jun to 15:51 on Tue 25 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-06-29", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1623, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-06-28T09:08:35+08:00", "utc": "1985-06-28T01:08:35Z", "ms": 488768915493.5474 }, "end": { "local": "1985-06-29T06:30:56+08:00", "utc": "1985-06-28T22:30:56Z", "ms": 488845856239.08185 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-28T09:08:35+08:00", "utc": "1985-06-28T01:08:35Z", "ms": 488768915493.5474 }, "end": { "local": "1985-06-29T06:30:56+08:00", "utc": "1985-06-28T22:30:56Z", "ms": 488845856239.08185 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-06-28", "window": { "start": { "local": "1985-06-28T06:03:33+08:00", "utc": "1985-06-27T22:03:33Z", "ms": 488757812539.6151 }, "end": { "local": "1985-06-28T06:03:33+08:00", "utc": "1985-06-27T22:03:33Z", "ms": 488757812539.6151 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-06-29", "window": { "start": { "local": "1985-06-29T06:03:53+08:00", "utc": "1985-06-28T22:03:53Z", "ms": 488844233222.3435 }, "end": { "local": "1985-06-29T06:03:53+08:00", "utc": "1985-06-28T22:03:53Z", "ms": 488844233222.3435 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:09 on Fri 28 Jun to 06:31 on Sat 29 Jun.", "fact": "1985-06-28T01:08:35Z → 1985-06-28T22:30:56Z" }, { "step": "kaala", "text": "Sunrise is at 06:04 on the 28th and 06:04 on the 29th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1623 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Chengdu, 1985: Saturday 29 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": "1985-06-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-29", "confidence": "determinate" } ], "quote": "In Chengdu, Hariśayanī Ekādaśī 1985 falls on Saturday 29 June. Ekādaśī runs from 09:09 on Fri 28 Jun to 06:31 on Sat 29 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-06-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-06-30", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-06-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12946, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-06-30T03:47:57+08:00", "utc": "1985-06-29T19:47:57Z", "ms": 488922476882.58997 }, "end": { "local": "1985-07-01T01:05:14+08:00", "utc": "1985-06-30T17:05:14Z", "ms": 488999113942.56604 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-06-30T03:47:57+08:00", "utc": "1985-06-29T19:47:57Z", "ms": 488922476882.58997 }, "end": { "local": "1985-07-01T01:05:14+08:00", "utc": "1985-06-30T17:05:14Z", "ms": 488999113942.56604 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-06-29", "window": { "start": { "local": "1985-06-29T20:10:11+08:00", "utc": "1985-06-29T12:10:11Z", "ms": 488895011245.19446 }, "end": { "local": "1985-06-29T21:29:24+08:00", "utc": "1985-06-29T13:29:24Z", "ms": 488899763729.52124 } }, "covered_min": 0, "window_min": 79, "qualifies": false }, { "local_date": "1985-06-30", "window": { "start": { "local": "1985-06-30T20:10:13+08:00", "utc": "1985-06-30T12:10:13Z", "ms": 488981412718.1536 }, "end": { "local": "1985-06-30T21:29:28+08:00", "utc": "1985-06-30T13:29:28Z", "ms": 488986168019.5204 } }, "covered_min": 79, "window_min": 79, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:48 on Sun 30 Jun to 01:05 on Mon 1 Jul.", "fact": "1985-06-29T19:47:57Z → 1985-06-30T17:05:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:10–21:29 on the 29th, 20:10–21:29 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 79 minutes on the 29th and 79 of 79 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12946 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Sunday 30 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": "1985-06-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-06-30", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Sunday 30 June. Trayodaśī runs from 03:48 on Sun 30 Jun to 01:05 on Mon 1 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-06-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-01", "confidence": "boundary", "boundary_reasons": [ "margin", "absent-unstated" ], "boundary_margin_s": 111, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-07-01T22:29:29+08:00", "utc": "1985-07-01T14:29:29Z", "ms": 489076169070.59326 }, "end": { "local": "1985-07-02T20:08:19+08:00", "utc": "1985-07-02T12:08:19Z", "ms": 489154099357.8222 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-07-01T22:29:29+08:00", "utc": "1985-07-01T14:29:29Z", "ms": 489076169070.59326 }, "end": { "local": "1985-07-02T20:08:19+08:00", "utc": "1985-07-02T12:08:19Z", "ms": 489154099357.8222 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-07-01", "window": { "start": { "local": "1985-07-01T20:10:12+08:00", "utc": "1985-07-01T12:10:12Z", "ms": 489067811763.1623 }, "end": { "local": "1985-07-01T21:29:30+08:00", "utc": "1985-07-01T13:29:30Z", "ms": 489072570194.3817 } }, "covered_min": 0, "window_min": 79, "qualifies": false }, { "local_date": "1985-07-02", "window": { "start": { "local": "1985-07-02T20:10:10+08:00", "utc": "1985-07-02T12:10:10Z", "ms": 489154210373.55585 }, "end": { "local": "1985-07-02T21:29:32+08:00", "utc": "1985-07-02T13:29:32Z", "ms": 489158972244.8924 } }, "covered_min": 0, "window_min": 79, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:29 on Mon 1 Jul to 20:08 on Tue 2 Jul.", "fact": "1985-07-01T14:29:29Z → 1985-07-02T12:08:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:10–21:30 on the 1st, 20:10–21:30 on the 2nd.", "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 79 minutes on the 1st and 0 of 79 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 111 s < 300 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Chengdu, 1985: Monday 1 July.", "fact": "confidence: boundary (margin, absent-unstated)" } ], "rule": { "kind": "lunar", "id": "shiva-shayanotsava", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-07-02", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-01", "confidence": "boundary" } ], "quote": "In Chengdu, Śiva Śayanotsava 1985 falls on Monday 1 July. Pūrṇimā runs from 22:29 on Mon 1 Jul to 20:08 on Tue 2 Jul, and reaches pradoṣa on neither day. It is 1 min 51 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27331, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-07-01T22:29:29+08:00", "utc": "1985-07-01T14:29:29Z", "ms": 489076169070.59326 }, "end": { "local": "1985-07-02T20:08:19+08:00", "utc": "1985-07-02T12:08:19Z", "ms": 489154099357.8222 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-07-01T22:29:29+08:00", "utc": "1985-07-01T14:29:29Z", "ms": 489076169070.59326 }, "end": { "local": "1985-07-02T20:08:19+08:00", "utc": "1985-07-02T12:08:19Z", "ms": 489154099357.8222 } }, "kaala": "udaya-3", "days": [ { "local_date": "1985-07-02", "window": { "start": { "local": "1985-07-02T06:05:00+08:00", "utc": "1985-07-01T22:05:00Z", "ms": 489103499997.30804 }, "end": { "local": "1985-07-02T08:54:02+08:00", "utc": "1985-07-02T00:54:02Z", "ms": 489113642072.5576 } }, "covered_min": 169, "window_min": 169, "qualifies": true }, { "local_date": "1985-07-03", "window": { "start": { "local": "1985-07-03T06:05:24+08:00", "utc": "1985-07-02T22:05:24Z", "ms": 489189924408.5799 }, "end": { "local": "1985-07-03T08:54:21+08:00", "utc": "1985-07-03T00:54:21Z", "ms": 489200061035.57355 } }, "covered_min": 0, "window_min": 169, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:29 on Mon 1 Jul to 20:08 on Tue 2 Jul.", "fact": "1985-07-01T14:29:29Z → 1985-07-02T12:08:19Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:05–08:54 on the 2nd, 06:05–08:54 on the 3rd.", "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 169 of 169 minutes on the 2nd and 0 of 169 on the 3rd.", "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 27331 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Chengdu, 1985: Tuesday 2 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": "1985-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-02", "confidence": "determinate" } ], "quote": "In Chengdu, Vyāsa Pūjā 1985 falls on Tuesday 2 July. Pūrṇimā runs from 22:29 on Mon 1 Jul to 20:08 on Tue 2 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23804, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-07-01T22:29:29+08:00", "utc": "1985-07-01T14:29:29Z", "ms": 489076169070.59326 }, "end": { "local": "1985-07-02T20:08:19+08:00", "utc": "1985-07-02T12:08:19Z", "ms": 489154099357.8222 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-07-01T22:29:29+08:00", "utc": "1985-07-01T14:29:29Z", "ms": 489076169070.59326 }, "end": { "local": "1985-07-02T20:08:19+08:00", "utc": "1985-07-02T12:08:19Z", "ms": 489154099357.8222 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-07-01", "window": { "start": { "local": "1985-07-01T12:43:25+08:00", "utc": "1985-07-01T04:43:25Z", "ms": 489041004620.78345 }, "end": { "local": "1985-07-01T13:31:25+08:00", "utc": "1985-07-01T05:31:25Z", "ms": 489043884620.78345 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-07-02", "window": { "start": { "local": "1985-07-02T12:43:35+08:00", "utc": "1985-07-02T04:43:35Z", "ms": 489127415185.43195 }, "end": { "local": "1985-07-02T13:31:35+08:00", "utc": "1985-07-02T05:31:35Z", "ms": 489130295185.43195 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:29 on Mon 1 Jul to 20:08 on Tue 2 Jul.", "fact": "1985-07-01T14:29:29Z → 1985-07-02T12:08:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 1st, 12:44–13:32 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23804 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Chengdu, 1985: Tuesday 2 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": "1985-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-02", "confidence": "determinate" } ], "quote": "In Chengdu, Guru Pūrṇimā 1985 falls on Tuesday 2 July. Pūrṇimā runs from 22:29 on Mon 1 Jul to 20:08 on Tue 2 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-02", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 111, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-07-01T22:29:29+08:00", "utc": "1985-07-01T14:29:29Z", "ms": 489076169070.59326 }, "end": { "local": "1985-07-02T20:08:19+08:00", "utc": "1985-07-02T12:08:19Z", "ms": 489154099357.8222 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1985-07-01T22:29:29+08:00", "utc": "1985-07-01T14:29:29Z", "ms": 489076169070.59326 }, "end": { "local": "1985-07-02T20:08:19+08:00", "utc": "1985-07-02T12:08:19Z", "ms": 489154099357.8222 } }, "kaala": "sayahna", "days": [ { "local_date": "1985-07-01", "window": { "start": { "local": "1985-07-01T17:21:05+08:00", "utc": "1985-07-01T09:21:05Z", "ms": 489057664906.21075 }, "end": { "local": "1985-07-01T20:10:12+08:00", "utc": "1985-07-01T12:10:12Z", "ms": 489067811763.1623 } }, "covered_min": 0, "window_min": 169, "qualifies": false }, { "local_date": "1985-07-02", "window": { "start": { "local": "1985-07-02T17:21:08+08:00", "utc": "1985-07-02T09:21:08Z", "ms": 489144068298.3063 }, "end": { "local": "1985-07-02T20:10:10+08:00", "utc": "1985-07-02T12:10:10Z", "ms": 489154210373.55585 } }, "covered_min": 167, "window_min": 169, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:29 on Mon 1 Jul to 20:08 on Tue 2 Jul.", "fact": "1985-07-01T14:29:29Z → 1985-07-02T12:08:19Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:21–20:10 on the 1st, 17:21–20:10 on the 2nd.", "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 169 minutes on the 1st and 167 of 169 on the 2nd.", "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 111 s < 300 s" }, { "step": "ruling", "text": "Kokilā Vrata, Chengdu, 1985: Tuesday 2 July.", "fact": "confidence: boundary (margin)" } ], "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": "1985-07-02", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-02", "confidence": "boundary" } ], "quote": "In Chengdu, Kokilā Vrata 1985 falls on Tuesday 2 July. Pūrṇimā runs from 22:29 on Mon 1 Jul to 20:08 on Tue 2 Jul and covers 167 of 169 minutes of sāyāhna that late afternoon. It is 1 min 51 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11367, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1985-07-03T18:09:48+08:00", "utc": "1985-07-03T10:09:48Z", "ms": 489233388057.37134 }, "end": { "local": "1985-07-04T16:41:54+08:00", "utc": "1985-07-04T08:41:54Z", "ms": 489314514207.7293 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-07-03T18:09:48+08:00", "utc": "1985-07-03T10:09:48Z", "ms": 489233388057.37134 }, "end": { "local": "1985-07-04T16:41:54+08:00", "utc": "1985-07-04T08:41:54Z", "ms": 489314514207.7293 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-07-03", "window": { "start": { "local": "1985-07-03T21:19:15+08:00", "utc": "1985-07-03T13:19:15Z", "ms": 489244754929.30536 }, "end": { "local": "1985-07-03T21:19:15+08:00", "utc": "1985-07-03T13:19:15Z", "ms": 489244754929.30536 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-07-04", "window": { "start": { "local": "1985-07-04T22:06:37+08:00", "utc": "1985-07-04T14:06:37Z", "ms": 489333996594.35614 }, "end": { "local": "1985-07-04T22:06:37+08:00", "utc": "1985-07-04T14:06:37Z", "ms": 489333996594.35614 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 18:10 on Wed 3 Jul to 16:42 on Thu 4 Jul.", "fact": "1985-07-03T10:09:48Z → 1985-07-04T08:41:54Z" }, { "step": "kaala", "text": "Moonrise is at 21:19 on the 3rd and 22:07 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā 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. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11367 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Chengdu, 1985: Wednesday 3 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": "1985-07-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-03", "confidence": "determinate" } ], "quote": "In Chengdu, Aśūnya Śayana Vrata (Āṣāḍha) 1985 falls on Wednesday 3 July. Dvitīyā runs from 18:10 on Wed 3 Jul to 16:42 on Thu 4 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-07-05", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24870, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-07-05T15:51:44+08:00", "utc": "1985-07-05T07:51:44Z", "ms": 489397904231.9753 }, "end": { "local": "1985-07-06T15:44:31+08:00", "utc": "1985-07-06T07:44:31Z", "ms": 489483871036.1131 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-07-05T15:51:44+08:00", "utc": "1985-07-05T07:51:44Z", "ms": 489397904231.9753 }, "end": { "local": "1985-07-06T15:44:31+08:00", "utc": "1985-07-06T07:44:31Z", "ms": 489483871036.1131 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-07-05", "window": { "start": { "local": "1985-07-05T22:46:14+08:00", "utc": "1985-07-05T14:46:14Z", "ms": 489422774266.8575 }, "end": { "local": "1985-07-05T22:46:14+08:00", "utc": "1985-07-05T14:46:14Z", "ms": 489422774266.8575 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-07-06", "window": { "start": { "local": "1985-07-06T23:19:58+08:00", "utc": "1985-07-06T15:19:58Z", "ms": 489511198325.6496 }, "end": { "local": "1985-07-06T23:19:58+08:00", "utc": "1985-07-06T15:19:58Z", "ms": 489511198325.6496 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:52 on Fri 5 Jul to 15:45 on Sat 6 Jul.", "fact": "1985-07-05T07:51:44Z → 1985-07-06T07:44:31Z" }, { "step": "kaala", "text": "Moonrise is at 22:46 on the 5th and 23:20 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 5th and is not on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24870 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Friday 5 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": "1985-07-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-05", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Friday 5 July. Caturthī runs from 15:52 on Fri 5 Jul to 15:45 on Sat 6 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-07-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ekadashi?on=1985-07-13", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3742, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-07-13T03:01:21+08:00", "utc": "1985-07-12T19:01:21Z", "ms": 490042881226.5433 }, "end": { "local": "1985-07-14T05:08:21+08:00", "utc": "1985-07-13T21:08:21Z", "ms": 490136901410.20465 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-07-13T03:01:21+08:00", "utc": "1985-07-12T19:01:21Z", "ms": 490042881226.5433 }, "end": { "local": "1985-07-14T05:08:21+08:00", "utc": "1985-07-13T21:08:21Z", "ms": 490136901410.20465 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-07-13", "window": { "start": { "local": "1985-07-13T06:10:12+08:00", "utc": "1985-07-12T22:10:12Z", "ms": 490054211507.3146 }, "end": { "local": "1985-07-13T06:10:12+08:00", "utc": "1985-07-12T22:10:12Z", "ms": 490054211507.3146 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-07-14", "window": { "start": { "local": "1985-07-14T06:10:44+08:00", "utc": "1985-07-13T22:10:44Z", "ms": 490140643850.28516 }, "end": { "local": "1985-07-14T06:10:44+08:00", "utc": "1985-07-13T22:10:44Z", "ms": 490140643850.28516 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:01 on Sat 13 Jul to 05:08 on Sun 14 Jul.", "fact": "1985-07-12T19:01:21Z → 1985-07-13T21:08:21Z" }, { "step": "kaala", "text": "Sunrise is at 06:10 on the 13th and 06:11 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 13th and is not on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3742 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Chengdu, 1985: Saturday 13 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": "1985-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-13", "confidence": "determinate" } ], "quote": "In Chengdu, Kāmikā Ekādaśī 1985 falls on Saturday 13 July. Ekādaśī runs from 03:01 on Sat 13 Jul to 05:08 on Sun 14 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-07-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-07-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33410, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-07-15T06:45:16+08:00", "utc": "1985-07-14T22:45:16Z", "ms": 490229115931.7351 }, "end": { "local": "1985-07-16T07:46:04+08:00", "utc": "1985-07-15T23:46:04Z", "ms": 490319164458.16266 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-07-15T06:45:16+08:00", "utc": "1985-07-14T22:45:16Z", "ms": 490229115931.7351 }, "end": { "local": "1985-07-16T07:46:04+08:00", "utc": "1985-07-15T23:46:04Z", "ms": 490319164458.16266 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-07-14", "window": { "start": { "local": "1985-07-14T20:08:00+08:00", "utc": "1985-07-14T12:08:00Z", "ms": 490190880152.7426 }, "end": { "local": "1985-07-14T21:28:26+08:00", "utc": "1985-07-14T13:28:26Z", "ms": 490195706362.22046 } }, "covered_min": 0, "window_min": 80, "qualifies": false }, { "local_date": "1985-07-15", "window": { "start": { "local": "1985-07-15T20:07:40+08:00", "utc": "1985-07-15T12:07:40Z", "ms": 490277259765.4312 }, "end": { "local": "1985-07-15T21:28:13+08:00", "utc": "1985-07-15T13:28:13Z", "ms": 490282093142.54626 } }, "covered_min": 81, "window_min": 81, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:45 on Mon 15 Jul to 07:46 on Tue 16 Jul.", "fact": "1985-07-14T22:45:16Z → 1985-07-15T23:46:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:08–21:28 on the 14th, 20:08–21:28 on the 15th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 80 minutes on the 14th and 81 of 81 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33410 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Monday 15 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": "1985-07-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-15", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Monday 15 July. Trayodaśī runs from 06:45 on Mon 15 Jul to 07:46 on Tue 16 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-07-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shivaratri?on=1985-07-16", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22340, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-07-16T07:46:04+08:00", "utc": "1985-07-15T23:46:04Z", "ms": 490319164458.16266 }, "end": { "local": "1985-07-17T08:09:08+08:00", "utc": "1985-07-17T00:09:08Z", "ms": 490406948415.6349 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-07-16T07:46:04+08:00", "utc": "1985-07-15T23:46:04Z", "ms": 490319164458.16266 }, "end": { "local": "1985-07-17T08:09:08+08:00", "utc": "1985-07-17T00:09:08Z", "ms": 490406948415.6349 } }, "kaala": "nishita", "days": [ { "local_date": "1985-07-15", "window": { "start": { "local": "1985-07-16T00:45:45+08:00", "utc": "1985-07-15T16:45:45Z", "ms": 490293944929.61255 }, "end": { "local": "1985-07-16T01:33:45+08:00", "utc": "1985-07-15T17:33:45Z", "ms": 490296824929.61255 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-07-16", "window": { "start": { "local": "1985-07-17T00:45:51+08:00", "utc": "1985-07-16T16:45:51Z", "ms": 490380350918.68896 }, "end": { "local": "1985-07-17T01:33:51+08:00", "utc": "1985-07-16T17:33:51Z", "ms": 490383230918.68896 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:46 on Tue 16 Jul to 08:09 on Wed 17 Jul.", "fact": "1985-07-15T23:46:04Z → 1985-07-17T00:09:08Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:46–01:34 on the 15th, 00:46–01:34 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22340 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Tuesday 16 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": "1985-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-16", "confidence": "determinate" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Tuesday 16 July. Caturdaśī runs from 07:46 on Tue 16 Jul to 08:09 on Wed 17 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/shivaratri?on=1985-07-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-07-21", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29695, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-07-21T04:31:00+08:00", "utc": "1985-07-20T20:31:00Z", "ms": 490739460441.11084 }, "end": { "local": "1985-07-22T02:45:47+08:00", "utc": "1985-07-21T18:45:47Z", "ms": 490819546658.7214 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-07-21T04:31:00+08:00", "utc": "1985-07-20T20:31:00Z", "ms": 490739460441.11084 }, "end": { "local": "1985-07-22T02:45:47+08:00", "utc": "1985-07-21T18:45:47Z", "ms": 490819546658.7214 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-07-21", "window": { "start": { "local": "1985-07-21T12:45:55+08:00", "utc": "1985-07-21T04:45:55Z", "ms": 490769154968.9629 }, "end": { "local": "1985-07-21T13:33:55+08:00", "utc": "1985-07-21T05:33:55Z", "ms": 490772034968.9629 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-07-22", "window": { "start": { "local": "1985-07-22T12:45:57+08:00", "utc": "1985-07-22T04:45:57Z", "ms": 490855557495.034 }, "end": { "local": "1985-07-22T13:33:57+08:00", "utc": "1985-07-22T05:33:57Z", "ms": 490858437495.034 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:31 on Sun 21 Jul to 02:46 on Mon 22 Jul.", "fact": "1985-07-20T20:31:00Z → 1985-07-21T18:45:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:46–13:34 on the 21st, 12:46–13:34 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29695 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Chengdu, 1985: Sunday 21 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": "1985-07-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-21", "confidence": "determinate" } ], "quote": "In Chengdu, Vināyaka Caturthī 1985 falls on Sunday 21 July. Caturthī runs from 04:31 on Sun 21 Jul to 02:46 on Mon 22 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-07-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ekadashi?on=1985-07-28", "festival": "ekadashi", "name": "Śukla Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21155, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-07-27T14:17:08+08:00", "utc": "1985-07-27T06:17:08Z", "ms": 491293027727.8558 }, "end": { "local": "1985-07-28T12:11:32+08:00", "utc": "1985-07-28T04:11:32Z", "ms": 491371891837.73566 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-07-27T14:17:08+08:00", "utc": "1985-07-27T06:17:08Z", "ms": 491293027727.8558 }, "end": { "local": "1985-07-28T12:11:32+08:00", "utc": "1985-07-28T04:11:32Z", "ms": 491371891837.73566 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-07-27", "window": { "start": { "local": "1985-07-27T06:18:20+08:00", "utc": "1985-07-26T22:18:20Z", "ms": 491264300276.3083 }, "end": { "local": "1985-07-27T06:18:20+08:00", "utc": "1985-07-26T22:18:20Z", "ms": 491264300276.3083 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-07-28", "window": { "start": { "local": "1985-07-28T06:18:57+08:00", "utc": "1985-07-27T22:18:57Z", "ms": 491350737055.12317 }, "end": { "local": "1985-07-28T06:18:57+08:00", "utc": "1985-07-27T22:18:57Z", "ms": 491350737055.12317 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:17 on Sat 27 Jul to 12:12 on Sun 28 Jul.", "fact": "1985-07-27T06:17:08Z → 1985-07-28T04:11:32Z" }, { "step": "kaala", "text": "Sunrise is at 06:18 on the 27th and 06:19 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21155 s" }, { "step": "ruling", "text": "Śukla Ekādaśī, Chengdu, 1985: Sunday 28 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": "1985-07-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-28", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Ekādaśī 1985 falls on Sunday 28 July. Ekādaśī runs from 14:17 on Sat 27 Jul to 12:12 on Sun 28 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-07-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-07-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-07-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35296, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-07-29T10:12:07+08:00", "utc": "1985-07-29T02:12:07Z", "ms": 491451127076.6693 }, "end": { "local": "1985-07-30T08:23:23+08:00", "utc": "1985-07-30T00:23:23Z", "ms": 491531002704.7578 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-07-29T10:12:07+08:00", "utc": "1985-07-29T02:12:07Z", "ms": 491451127076.6693 }, "end": { "local": "1985-07-30T08:23:23+08:00", "utc": "1985-07-30T00:23:23Z", "ms": 491531002704.7578 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-07-29", "window": { "start": { "local": "1985-07-29T20:00:23+08:00", "utc": "1985-07-29T12:00:23Z", "ms": 491486422909.523 }, "end": { "local": "1985-07-29T21:23:01+08:00", "utc": "1985-07-29T13:23:01Z", "ms": 491491381311.3224 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "1985-07-30", "window": { "start": { "local": "1985-07-30T19:59:41+08:00", "utc": "1985-07-30T11:59:41Z", "ms": 491572781326.6499 }, "end": { "local": "1985-07-30T21:22:30+08:00", "utc": "1985-07-30T13:22:30Z", "ms": 491577750213.3748 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:12 on Mon 29 Jul to 08:23 on Tue 30 Jul.", "fact": "1985-07-29T02:12:07Z → 1985-07-30T00:23:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:00–21:23 on the 29th, 20:00–21:23 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 83 of 83 minutes on the 29th and 0 of 83 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35296 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Monday 29 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": "1985-07-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-07-29", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Monday 29 July. Trayodaśī runs from 10:12 on Mon 29 Jul to 08:23 on Tue 30 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-07-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-08-04", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27443, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-08-04T05:25:53+08:00", "utc": "1985-08-03T21:25:53Z", "ms": 491952353476.57623 }, "end": { "local": "1985-08-05T06:37:34+08:00", "utc": "1985-08-04T22:37:34Z", "ms": 492043053529.2533 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-04T05:25:53+08:00", "utc": "1985-08-03T21:25:53Z", "ms": 491952353476.57623 }, "end": { "local": "1985-08-05T06:37:34+08:00", "utc": "1985-08-04T22:37:34Z", "ms": 492043053529.2533 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-08-03", "window": { "start": { "local": "1985-08-03T21:48:31+08:00", "utc": "1985-08-03T13:48:31Z", "ms": 491924910702.74585 }, "end": { "local": "1985-08-03T21:48:31+08:00", "utc": "1985-08-03T13:48:31Z", "ms": 491924910702.74585 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-08-04", "window": { "start": { "local": "1985-08-04T22:16:52+08:00", "utc": "1985-08-04T14:16:52Z", "ms": 492013012476.99536 }, "end": { "local": "1985-08-04T22:16:52+08:00", "utc": "1985-08-04T14:16:52Z", "ms": 492013012476.99536 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:26 on Sun 4 Aug to 06:38 on Mon 5 Aug.", "fact": "1985-08-03T21:25:53Z → 1985-08-04T22:37:34Z" }, { "step": "kaala", "text": "Moonrise is at 21:49 on the 3rd and 22:17 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 27443 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Sunday 4 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": "1985-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-04", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Sunday 4 August. Caturthī runs from 05:26 on Sun 4 Aug to 06:38 on Mon 5 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-08-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ekadashi?on=1985-08-12", "festival": "ekadashi", "name": "Kṛṣṇa Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34855, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-08-11T19:42:49+08:00", "utc": "1985-08-11T11:42:49Z", "ms": 492608569069.90344 }, "end": { "local": "1985-08-12T20:47:55+08:00", "utc": "1985-08-12T12:47:55Z", "ms": 492698875493.4345 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-11T19:42:49+08:00", "utc": "1985-08-11T11:42:49Z", "ms": 492608569069.90344 }, "end": { "local": "1985-08-12T20:47:55+08:00", "utc": "1985-08-12T12:47:55Z", "ms": 492698875493.4345 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-08-12", "window": { "start": { "local": "1985-08-12T06:28:14+08:00", "utc": "1985-08-11T22:28:14Z", "ms": 492647293651.393 }, "end": { "local": "1985-08-12T06:28:14+08:00", "utc": "1985-08-11T22:28:14Z", "ms": 492647293651.393 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-08-13", "window": { "start": { "local": "1985-08-13T06:28:51+08:00", "utc": "1985-08-12T22:28:51Z", "ms": 492733730518.1029 }, "end": { "local": "1985-08-13T06:28:51+08:00", "utc": "1985-08-12T22:28:51Z", "ms": 492733730518.1029 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:43 on Sun 11 Aug to 20:48 on Mon 12 Aug.", "fact": "1985-08-11T11:42:49Z → 1985-08-12T12:47:55Z" }, { "step": "kaala", "text": "Sunrise is at 06:28 on the 12th and 06:29 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34855 s" }, { "step": "ruling", "text": "Kṛṣṇa Ekādaśī, Chengdu, 1985: Monday 12 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": "1985-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-12", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Ekādaśī 1985 falls on Monday 12 August. Ekādaśī runs from 19:43 on Sun 11 Aug to 20:48 on Mon 12 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-08-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-08-14", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-14", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 279, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-08-13T21:08:47+08:00", "utc": "1985-08-13T13:08:47Z", "ms": 492786527441.8891 }, "end": { "local": "1985-08-14T20:45:37+08:00", "utc": "1985-08-14T12:45:37Z", "ms": 492871536564.9424 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-13T21:08:47+08:00", "utc": "1985-08-13T13:08:47Z", "ms": 492786527441.8891 }, "end": { "local": "1985-08-14T20:45:37+08:00", "utc": "1985-08-14T12:45:37Z", "ms": 492871536564.9424 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-08-13", "window": { "start": { "local": "1985-08-13T19:47:54+08:00", "utc": "1985-08-13T11:47:54Z", "ms": 492781674077.3425 }, "end": { "local": "1985-08-13T21:13:27+08:00", "utc": "1985-08-13T13:13:27Z", "ms": 492786806505.86597 } }, "covered_min": 5, "window_min": 86, "qualifies": true }, { "local_date": "1985-08-14", "window": { "start": { "local": "1985-08-14T19:46:56+08:00", "utc": "1985-08-14T11:46:56Z", "ms": 492868015523.7327 }, "end": { "local": "1985-08-14T21:12:41+08:00", "utc": "1985-08-14T13:12:41Z", "ms": 492873160648.60114 } }, "covered_min": 59, "window_min": 86, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:09 on Tue 13 Aug to 20:46 on Wed 14 Aug.", "fact": "1985-08-13T13:08:47Z → 1985-08-14T12:45:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:48–21:13 on the 13th, 19:47–21:13 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 5 of 86 minutes on the 13th and 59 of 86 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 279 s < 300 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Wednesday 14 August.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-08-14", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-14", "confidence": "boundary" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Wednesday 14 August. Trayodaśī runs from 21:09 on Tue 13 Aug to 20:46 on Wed 14 Aug and covers 59 of 86 minutes of pradoṣa that evening. It also reaches the previous evening for 5 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 4 min 39 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-08-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shivaratri?on=1985-08-14", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14333, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-08-14T20:45:37+08:00", "utc": "1985-08-14T12:45:37Z", "ms": 492871536564.9424 }, "end": { "local": "1985-08-15T19:42:21+08:00", "utc": "1985-08-15T11:42:21Z", "ms": 492954141016.8024 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-14T20:45:37+08:00", "utc": "1985-08-14T12:45:37Z", "ms": 492871536564.9424 }, "end": { "local": "1985-08-15T19:42:21+08:00", "utc": "1985-08-15T11:42:21Z", "ms": 492954141016.8024 } }, "kaala": "nishita", "days": [ { "local_date": "1985-08-14", "window": { "start": { "local": "1985-08-15T00:44:30+08:00", "utc": "1985-08-14T16:44:30Z", "ms": 492885869741.98926 }, "end": { "local": "1985-08-15T01:32:30+08:00", "utc": "1985-08-14T17:32:30Z", "ms": 492888749741.98926 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-08-15", "window": { "start": { "local": "1985-08-16T00:44:18+08:00", "utc": "1985-08-15T16:44:18Z", "ms": 492972258266.0371 }, "end": { "local": "1985-08-16T01:32:18+08:00", "utc": "1985-08-15T17:32:18Z", "ms": 492975138266.0371 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:46 on Wed 14 Aug to 19:42 on Thu 15 Aug.", "fact": "1985-08-14T12:45:37Z → 1985-08-15T11:42:21Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:44–01:32 on the 14th, 00:44–01:32 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 14333 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Wednesday 14 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": "1985-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-14", "confidence": "determinate" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Wednesday 14 August. Caturdaśī runs from 20:46 on Wed 14 Aug to 19:42 on Thu 15 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/shivaratri?on=1985-08-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 690, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1985-08-18T13:42:53+08:00", "utc": "1985-08-18T05:42:53Z", "ms": 493191772797.998 }, "end": { "local": "1985-08-19T11:13:10+08:00", "utc": "1985-08-19T03:13:10Z", "ms": 493269190134.92865 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-18T13:42:53+08:00", "utc": "1985-08-18T05:42:53Z", "ms": 493191772797.998 }, "end": { "local": "1985-08-19T11:13:10+08:00", "utc": "1985-08-19T03:13:10Z", "ms": 493269190134.92865 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-08-18", "window": { "start": { "local": "1985-08-18T12:43:23+08:00", "utc": "1985-08-18T04:43:23Z", "ms": 493188202617.7105 }, "end": { "local": "1985-08-18T13:31:23+08:00", "utc": "1985-08-18T05:31:23Z", "ms": 493191082617.7105 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-08-19", "window": { "start": { "local": "1985-08-19T12:43:09+08:00", "utc": "1985-08-19T04:43:09Z", "ms": 493274589141.7654 }, "end": { "local": "1985-08-19T13:31:09+08:00", "utc": "1985-08-19T05:31:09Z", "ms": 493277469141.7654 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:43 on Sun 18 Aug to 11:13 on Mon 19 Aug.", "fact": "1985-08-18T05:42:53Z → 1985-08-19T03:13:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 18th, 12:43–13:31 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. 103" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 690 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Chengdu, 1985: Monday 19 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": "1985-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-18", "confidence": "determinate" } ], "quote": "In Chengdu, Madhusravā Tṛtīyā (Hariyali Teej) 1985 falls on Monday 19 August. Tṛtīyā runs from 13:43 on Sun 18 Aug to 11:13 on Mon 19 Aug, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-08-19", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5399, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-08-19T11:13:10+08:00", "utc": "1985-08-19T03:13:10Z", "ms": 493269190134.92865 }, "end": { "local": "1985-08-20T08:40:46+08:00", "utc": "1985-08-20T00:40:46Z", "ms": 493346446016.8817 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-19T11:13:10+08:00", "utc": "1985-08-19T03:13:10Z", "ms": 493269190134.92865 }, "end": { "local": "1985-08-20T08:40:46+08:00", "utc": "1985-08-20T00:40:46Z", "ms": 493346446016.8817 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-08-19", "window": { "start": { "local": "1985-08-19T12:43:09+08:00", "utc": "1985-08-19T04:43:09Z", "ms": 493274589141.7654 }, "end": { "local": "1985-08-19T13:31:09+08:00", "utc": "1985-08-19T05:31:09Z", "ms": 493277469141.7654 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-08-20", "window": { "start": { "local": "1985-08-20T12:42:55+08:00", "utc": "1985-08-20T04:42:55Z", "ms": 493360975168.0929 }, "end": { "local": "1985-08-20T13:30:55+08:00", "utc": "1985-08-20T05:30:55Z", "ms": 493363855168.0929 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:13 on Mon 19 Aug to 08:41 on Tue 20 Aug.", "fact": "1985-08-19T03:13:10Z → 1985-08-20T00:40:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 19th, 12:43–13:31 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 5399 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Chengdu, 1985: Monday 19 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": "1985-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-19", "confidence": "determinate" } ], "quote": "In Chengdu, Vināyaka Caturthī 1985 falls on Monday 19 August. Caturthī runs from 11:13 on Mon 19 Aug to 08:41 on Tue 20 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-08-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14529, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1985-08-20T08:40:46+08:00", "utc": "1985-08-20T00:40:46Z", "ms": 493346446016.8817 }, "end": { "local": "1985-08-21T06:11:23+08:00", "utc": "1985-08-20T22:11:23Z", "ms": 493423882584.7288 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-20T08:40:46+08:00", "utc": "1985-08-20T00:40:46Z", "ms": 493346446016.8817 }, "end": { "local": "1985-08-21T06:11:23+08:00", "utc": "1985-08-20T22:11:23Z", "ms": 493423882584.7288 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-08-20", "window": { "start": { "local": "1985-08-20T12:42:55+08:00", "utc": "1985-08-20T04:42:55Z", "ms": 493360975168.0929 }, "end": { "local": "1985-08-20T13:30:55+08:00", "utc": "1985-08-20T05:30:55Z", "ms": 493363855168.0929 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-08-21", "window": { "start": { "local": "1985-08-21T12:42:41+08:00", "utc": "1985-08-21T04:42:41Z", "ms": 493447360705.56616 }, "end": { "local": "1985-08-21T13:30:41+08:00", "utc": "1985-08-21T05:30:41Z", "ms": 493450240705.56616 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 08:41 on Tue 20 Aug to 06:11 on Wed 21 Aug.", "fact": "1985-08-20T00:40:46Z → 1985-08-20T22:11:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:43–13:31 on the 20th, 12:43–13:31 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14529 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Chengdu, 1985: Tuesday 20 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": "1985-08-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-20", "confidence": "determinate" } ], "quote": "In Chengdu, Nāga Pañcamī 1985 falls on Tuesday 20 August. Pañcamī runs from 08:41 on Tue 20 Aug to 06:11 on Wed 21 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-08-26", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37046, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-08-25T20:19:12+08:00", "utc": "1985-08-25T12:19:12Z", "ms": 493820351617.1732 }, "end": { "local": "1985-08-26T19:02:49+08:00", "utc": "1985-08-26T11:02:49Z", "ms": 493902168681.7829 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-25T20:19:12+08:00", "utc": "1985-08-25T12:19:12Z", "ms": 493820351617.1732 }, "end": { "local": "1985-08-26T19:02:49+08:00", "utc": "1985-08-26T11:02:49Z", "ms": 493902168681.7829 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-08-26", "window": { "start": { "local": "1985-08-26T06:36:38+08:00", "utc": "1985-08-25T22:36:38Z", "ms": 493857398014.9768 }, "end": { "local": "1985-08-26T06:36:38+08:00", "utc": "1985-08-25T22:36:38Z", "ms": 493857398014.9768 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-08-27", "window": { "start": { "local": "1985-08-27T06:37:13+08:00", "utc": "1985-08-26T22:37:13Z", "ms": 493943832894.97754 }, "end": { "local": "1985-08-27T06:37:13+08:00", "utc": "1985-08-26T22:37:13Z", "ms": 493943832894.97754 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:19 on Sun 25 Aug to 19:03 on Mon 26 Aug.", "fact": "1985-08-25T12:19:12Z → 1985-08-26T11:02:49Z" }, { "step": "kaala", "text": "Sunrise is at 06:37 on the 26th and 06:37 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 37046 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Chengdu, 1985: Monday 26 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": "1985-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-26", "confidence": "determinate" } ], "quote": "In Chengdu, Putradā Ekādaśī 1985 falls on Monday 26 August. Ekādaśī runs from 20:19 on Sun 25 Aug to 19:03 on Mon 26 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-08-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16511, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1985-08-26T19:02:49+08:00", "utc": "1985-08-26T11:02:49Z", "ms": 493902168681.7829 }, "end": { "local": "1985-08-27T18:04:15+08:00", "utc": "1985-08-27T10:04:15Z", "ms": 493985054990.0874 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-26T19:02:49+08:00", "utc": "1985-08-26T11:02:49Z", "ms": 493902168681.7829 }, "end": { "local": "1985-08-27T18:04:15+08:00", "utc": "1985-08-27T10:04:15Z", "ms": 493985054990.0874 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-08-26", "window": { "start": { "local": "1985-08-26T12:41:21+08:00", "utc": "1985-08-26T04:41:21Z", "ms": 493879281476.7258 }, "end": { "local": "1985-08-26T13:29:21+08:00", "utc": "1985-08-26T05:29:21Z", "ms": 493882161476.7258 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-08-27", "window": { "start": { "local": "1985-08-27T12:41:04+08:00", "utc": "1985-08-27T04:41:04Z", "ms": 493965664350.7456 }, "end": { "local": "1985-08-27T13:29:04+08:00", "utc": "1985-08-27T05:29:04Z", "ms": 493968544350.7456 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 19:03 on Mon 26 Aug to 18:04 on Tue 27 Aug.", "fact": "1985-08-26T11:02:49Z → 1985-08-27T10:04:15Z" }, { "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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 16511 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Chengdu, 1985: Tuesday 27 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": "1985-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-27", "confidence": "determinate" } ], "quote": "In Chengdu, Dāmodara Dvādaśī 1985 falls on Tuesday 27 August. Dvādaśī runs from 19:03 on Mon 26 Aug to 18:04 on Tue 27 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/pradosha-vrata?on=1985-08-27", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5321, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-08-27T18:04:15+08:00", "utc": "1985-08-27T10:04:15Z", "ms": 493985054990.0874 }, "end": { "local": "1985-08-28T17:26:25+08:00", "utc": "1985-08-28T09:26:25Z", "ms": 494069184655.84247 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-27T18:04:15+08:00", "utc": "1985-08-27T10:04:15Z", "ms": 493985054990.0874 }, "end": { "local": "1985-08-28T17:26:25+08:00", "utc": "1985-08-28T09:26:25Z", "ms": 494069184655.84247 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-08-27", "window": { "start": { "local": "1985-08-27T19:32:56+08:00", "utc": "1985-08-27T11:32:56Z", "ms": 493990375806.5137 }, "end": { "local": "1985-08-27T21:01:35+08:00", "utc": "1985-08-27T13:01:35Z", "ms": 493995694716.0707 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "1985-08-28", "window": { "start": { "local": "1985-08-28T19:31:46+08:00", "utc": "1985-08-28T11:31:46Z", "ms": 494076706047.4045 }, "end": { "local": "1985-08-28T21:00:39+08:00", "utc": "1985-08-28T13:00:39Z", "ms": 494082038870.805 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:04 on Tue 27 Aug to 17:26 on Wed 28 Aug.", "fact": "1985-08-27T10:04:15Z → 1985-08-28T09:26:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:33–21:02 on the 27th, 19:32–21:01 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 89 of 89 minutes on the 27th and 0 of 89 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 5321 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Tuesday 27 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": "1985-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-27", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Tuesday 27 August. Trayodaśī runs from 18:04 on Tue 27 Aug to 17:26 on Wed 28 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-08-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-30", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 4960, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-08-29T17:12:49+08:00", "utc": "1985-08-29T09:12:49Z", "ms": 494154769401.91235 }, "end": { "local": "1985-08-30T17:27:10+08:00", "utc": "1985-08-30T09:27:10Z", "ms": 494242029737.49396 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1985-08-30T05:16:17+08:00", "utc": "1985-08-29T21:16:17Z", "ms": 494198177141.58795 }, "end": { "local": "1985-08-30T17:27:10+08:00", "utc": "1985-08-30T09:27:10Z", "ms": 494242029737.49396 } }, "kaala": "day", "days": [ { "local_date": "1985-08-29", "window": { "start": { "local": "1985-08-29T06:38:22+08:00", "utc": "1985-08-28T22:38:22Z", "ms": 494116702222.90826 }, "end": { "local": "1985-08-30T06:38:57+08:00", "utc": "1985-08-29T22:38:57Z", "ms": 494203136688.5437 } }, "covered_min": 83, "window_min": 1441, "qualifies": true }, { "local_date": "1985-08-30", "window": { "start": { "local": "1985-08-30T06:38:57+08:00", "utc": "1985-08-29T22:38:57Z", "ms": 494203136688.5437 }, "end": { "local": "1985-08-31T06:39:31+08:00", "utc": "1985-08-30T22:39:31Z", "ms": 494289571035.3244 } }, "covered_min": 648, "window_min": 1441, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:13 on Thu 29 Aug to 17:27 on Fri 30 Aug. Its second half begins at 05:16 on Fri 30 Aug.", "fact": "1985-08-29T09:12:49Z → 1985-08-30T09:27:10Z · second half from 1985-08-29T21:16:17Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:38 on the 29th, and from 06:39 on the 30th.", "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 83 of 1441 minutes on the 29th and 648 of 1441 on the 30th.", "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 4960 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Chengdu, 1985: Friday 30 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": "1985-08-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-30", "confidence": "boundary" } ], "quote": "In Chengdu, Rakṣā Bandhana (Rakhi) 1985 falls on Friday 30 August. The second half of Pūrṇimā runs from 05:16 on Fri 30 Aug to 17:27 on Fri 30 Aug and falls on two days: 648 minutes of it on the 30th, 83 on the 29th; 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/chengdu/festivals/1985/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": "/chengdu/festivals/1985/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13460, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-08-29T17:12:49+08:00", "utc": "1985-08-29T09:12:49Z", "ms": 494154769401.91235 }, "end": { "local": "1985-08-30T17:27:10+08:00", "utc": "1985-08-30T09:27:10Z", "ms": 494242029737.49396 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1985-08-29T17:12:49+08:00", "utc": "1985-08-29T09:12:49Z", "ms": 494154769401.91235 }, "end": { "local": "1985-08-30T17:27:10+08:00", "utc": "1985-08-30T09:27:10Z", "ms": 494242029737.49396 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-08-29", "window": { "start": { "local": "1985-08-29T12:40:29+08:00", "utc": "1985-08-29T04:40:29Z", "ms": 494138428956.63354 }, "end": { "local": "1985-08-29T13:28:29+08:00", "utc": "1985-08-29T05:28:29Z", "ms": 494141308956.63354 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-08-30", "window": { "start": { "local": "1985-08-30T12:40:11+08:00", "utc": "1985-08-30T04:40:11Z", "ms": 494224810726.5196 }, "end": { "local": "1985-08-30T13:28:11+08:00", "utc": "1985-08-30T05:28:11Z", "ms": 494227690726.5196 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:13 on Thu 29 Aug to 17:27 on Fri 30 Aug.", "fact": "1985-08-29T09:12:49Z → 1985-08-30T09:27:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 29th, 12:40–13:28 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13460 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Chengdu, 1985: Friday 30 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": "1985-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-30", "confidence": "determinate" } ], "quote": "In Chengdu, Ṛṣi Tarpaṇa 1985 falls on Friday 30 August. Pūrṇimā runs from 17:13 on Thu 29 Aug to 17:27 on Fri 30 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4455, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1985-08-31T18:12:29+08:00", "utc": "1985-08-31T10:12:29Z", "ms": 494331149203.2757 }, "end": { "local": "1985-09-01T19:30:15+08:00", "utc": "1985-09-01T11:30:15Z", "ms": 494422214998.78735 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-08-31T18:12:29+08:00", "utc": "1985-08-31T10:12:29Z", "ms": 494331149203.2757 }, "end": { "local": "1985-09-01T19:30:15+08:00", "utc": "1985-09-01T11:30:15Z", "ms": 494422214998.78735 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-08-31", "window": { "start": { "local": "1985-08-31T20:17:21+08:00", "utc": "1985-08-31T12:17:21Z", "ms": 494338641397.1942 }, "end": { "local": "1985-08-31T20:17:21+08:00", "utc": "1985-08-31T12:17:21Z", "ms": 494338641397.1942 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-09-01", "window": { "start": { "local": "1985-09-01T20:44:30+08:00", "utc": "1985-09-01T12:44:30Z", "ms": 494426670448.1405 }, "end": { "local": "1985-09-01T20:44:30+08:00", "utc": "1985-09-01T12:44:30Z", "ms": 494426670448.1405 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 18:12 on Sat 31 Aug to 19:30 on Sun 1 Sep.", "fact": "1985-08-31T10:12:29Z → 1985-09-01T11:30:15Z" }, { "step": "kaala", "text": "Moonrise is at 20:17 on the 31st and 20:45 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 31st and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4455 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Chengdu, 1985: Saturday 31 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": "1985-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-08-31", "confidence": "determinate" } ], "quote": "In Chengdu, Aśūnya Śayana Vrata 1985 falls on Saturday 31 August. Dvitīyā runs from 18:12 on Sat 31 Aug to 19:30 on Sun 1 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21762, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1985-09-01T19:30:15+08:00", "utc": "1985-09-01T11:30:15Z", "ms": 494422214998.78735 }, "end": { "local": "1985-09-02T21:19:13+08:00", "utc": "1985-09-02T13:19:13Z", "ms": 494515152502.77435 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-01T19:30:15+08:00", "utc": "1985-09-01T11:30:15Z", "ms": 494422214998.78735 }, "end": { "local": "1985-09-02T21:19:13+08:00", "utc": "1985-09-02T13:19:13Z", "ms": 494515152502.77435 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-01", "window": { "start": { "local": "1985-09-01T12:39:33+08:00", "utc": "1985-09-01T04:39:33Z", "ms": 494397573298.1249 }, "end": { "local": "1985-09-01T13:27:33+08:00", "utc": "1985-09-01T05:27:33Z", "ms": 494400453298.1249 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-09-02", "window": { "start": { "local": "1985-09-02T12:39:14+08:00", "utc": "1985-09-02T04:39:14Z", "ms": 494483954139.7829 }, "end": { "local": "1985-09-02T13:27:14+08:00", "utc": "1985-09-02T05:27:14Z", "ms": 494486834139.7829 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 19:30 on Sun 1 Sep to 21:19 on Mon 2 Sep.", "fact": "1985-09-01T11:30:15Z → 1985-09-02T13:19:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 1st, 12:39–13:27 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "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 21762 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Chengdu, 1985: Monday 2 September.", "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": "1985-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-02", "confidence": "determinate" } ], "quote": "In Chengdu, Kajjalī Tṛtīyā (Kajari Teej) 1985 falls on Monday 2 September. Tṛtīyā runs from 19:30 on Sun 1 Sep to 21:19 on Mon 2 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6804, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-09-02T21:19:13+08:00", "utc": "1985-09-02T13:19:13Z", "ms": 494515152502.77435 }, "end": { "local": "1985-09-03T23:34:28+08:00", "utc": "1985-09-03T15:34:28Z", "ms": 494609667981.4022 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-02T21:19:13+08:00", "utc": "1985-09-02T13:19:13Z", "ms": 494515152502.77435 }, "end": { "local": "1985-09-03T23:34:28+08:00", "utc": "1985-09-03T15:34:28Z", "ms": 494609667981.4022 } }, "kaala": "sayahna", "days": [ { "local_date": "1985-09-02", "window": { "start": { "local": "1985-09-02T16:52:47+08:00", "utc": "1985-09-02T08:52:47Z", "ms": 494499166974.0453 }, "end": { "local": "1985-09-02T19:25:49+08:00", "utc": "1985-09-02T11:25:49Z", "ms": 494508348863.5536 } }, "covered_min": 0, "window_min": 153, "qualifies": false }, { "local_date": "1985-09-03", "window": { "start": { "local": "1985-09-03T16:51:55+08:00", "utc": "1985-09-03T08:51:55Z", "ms": 494585515454.98236 }, "end": { "local": "1985-09-03T19:24:36+08:00", "utc": "1985-09-03T11:24:36Z", "ms": 494594675950.7385 } }, "covered_min": 153, "window_min": 153, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:19 on Mon 2 Sep to 23:34 on Tue 3 Sep.", "fact": "1985-09-02T13:19:13Z → 1985-09-03T15:34:28Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:53–19:26 on the 2nd, 16:52–19:25 on the 3rd.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 0 of 153 minutes on the 2nd and 153 of 153 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6804 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Chengdu, 1985: Tuesday 3 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bahula-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day)." } ], "kaala": "sayahna", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-03", "confidence": "determinate" } ], "quote": "In Chengdu, Bahulā Caturthī 1985 falls on Tuesday 3 September. Caturthī runs from 21:19 on Mon 2 Sep to 23:34 on Tue 3 Sep and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-09-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 499, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-09-02T21:19:13+08:00", "utc": "1985-09-02T13:19:13Z", "ms": 494515152502.77435 }, "end": { "local": "1985-09-03T23:34:28+08:00", "utc": "1985-09-03T15:34:28Z", "ms": 494609667981.4022 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-02T21:19:13+08:00", "utc": "1985-09-02T13:19:13Z", "ms": 494515152502.77435 }, "end": { "local": "1985-09-03T23:34:28+08:00", "utc": "1985-09-03T15:34:28Z", "ms": 494609667981.4022 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-09-02", "window": { "start": { "local": "1985-09-02T21:10:54+08:00", "utc": "1985-09-02T13:10:54Z", "ms": 494514653674.5873 }, "end": { "local": "1985-09-02T21:10:54+08:00", "utc": "1985-09-02T13:10:54Z", "ms": 494514653674.5873 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-09-03", "window": { "start": { "local": "1985-09-03T21:37:41+08:00", "utc": "1985-09-03T13:37:41Z", "ms": 494602661103.7231 }, "end": { "local": "1985-09-03T21:37:41+08:00", "utc": "1985-09-03T13:37:41Z", "ms": 494602661103.7231 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:19 on Mon 2 Sep to 23:34 on Tue 3 Sep.", "fact": "1985-09-02T13:19:13Z → 1985-09-03T15:34:28Z" }, { "step": "kaala", "text": "Moonrise is at 21:11 on the 2nd and 21:38 on the 3rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 2nd and is on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 499 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Tuesday 3 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": "1985-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-03", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Tuesday 3 September. Caturthī runs from 21:19 on Mon 2 Sep to 23:34 on Tue 3 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-09-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28426, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1985-09-05T02:07:01+08:00", "utc": "1985-09-04T18:07:01Z", "ms": 494705220953.3818 }, "end": { "local": "1985-09-06T04:44:09+08:00", "utc": "1985-09-05T20:44:09Z", "ms": 494801048993.0116 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-05T02:07:01+08:00", "utc": "1985-09-04T18:07:01Z", "ms": 494705220953.3818 }, "end": { "local": "1985-09-06T04:44:09+08:00", "utc": "1985-09-05T20:44:09Z", "ms": 494801048993.0116 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-05", "window": { "start": { "local": "1985-09-05T12:38:15+08:00", "utc": "1985-09-05T04:38:15Z", "ms": 494743095122.2385 }, "end": { "local": "1985-09-05T13:26:15+08:00", "utc": "1985-09-05T05:26:15Z", "ms": 494745975122.2385 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-09-06", "window": { "start": { "local": "1985-09-06T12:37:55+08:00", "utc": "1985-09-06T04:37:55Z", "ms": 494829475000.1777 }, "end": { "local": "1985-09-06T13:25:55+08:00", "utc": "1985-09-06T05:25:55Z", "ms": 494832355000.1777 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 02:07 on Thu 5 Sep to 04:44 on Fri 6 Sep.", "fact": "1985-09-04T18:07:01Z → 1985-09-05T20:44:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 5th, 12:38–13:26 on the 6th.", "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 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28426 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Chengdu, 1985: Thursday 5 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "hala-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Hala sasthi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-05", "confidence": "determinate" } ], "quote": "In Chengdu, Hala Ṣaṣṭhī 1985 falls on Thursday 5 September. Ṣaṣṭhī runs from 02:07 on Thu 5 Sep to 04:44 on Fri 6 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19599, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1985-09-06T04:44:09+08:00", "utc": "1985-09-05T20:44:09Z", "ms": 494801048993.0116 }, "end": { "local": "1985-09-07T07:10:56+08:00", "utc": "1985-09-06T23:10:56Z", "ms": 494896255728.9456 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-06T04:44:09+08:00", "utc": "1985-09-05T20:44:09Z", "ms": 494801048993.0116 }, "end": { "local": "1985-09-07T07:10:56+08:00", "utc": "1985-09-06T23:10:56Z", "ms": 494896255728.9456 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-06", "window": { "start": { "local": "1985-09-06T12:37:55+08:00", "utc": "1985-09-06T04:37:55Z", "ms": 494829475000.1777 }, "end": { "local": "1985-09-06T13:25:55+08:00", "utc": "1985-09-06T05:25:55Z", "ms": 494832355000.1777 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-09-07", "window": { "start": { "local": "1985-09-07T12:37:35+08:00", "utc": "1985-09-07T04:37:35Z", "ms": 494915854685.2137 }, "end": { "local": "1985-09-07T13:25:35+08:00", "utc": "1985-09-07T05:25:35Z", "ms": 494918734685.2137 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 04:44 on Fri 6 Sep to 07:11 on Sat 7 Sep.", "fact": "1985-09-05T20:44:09Z → 1985-09-06T23:10:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:38–13:26 on the 6th, 12:38–13:26 on the 7th.", "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 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 19599 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Chengdu, 1985: Friday 6 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": "1985-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-06", "confidence": "determinate" } ], "quote": "In Chengdu, Śītalā Saptamī 1985 falls on Friday 6 September. Saptamī runs from 04:44 on Fri 6 Sep to 07:11 on Sat 7 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20684, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1985-09-07T07:10:56+08:00", "utc": "1985-09-06T23:10:56Z", "ms": 494896255728.9456 }, "end": { "local": "1985-09-08T09:12:27+08:00", "utc": "1985-09-08T01:12:27Z", "ms": 494989947225.7653 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-07T07:10:56+08:00", "utc": "1985-09-06T23:10:56Z", "ms": 494896255728.9456 }, "end": { "local": "1985-09-08T09:12:27+08:00", "utc": "1985-09-08T01:12:27Z", "ms": 494989947225.7653 } }, "kaala": "nishita", "days": [ { "local_date": "1985-09-06", "window": { "start": { "local": "1985-09-07T00:38:12+08:00", "utc": "1985-09-06T16:38:12Z", "ms": 494872691910.11035 }, "end": { "local": "1985-09-07T01:26:12+08:00", "utc": "1985-09-06T17:26:12Z", "ms": 494875571910.11035 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-09-07", "window": { "start": { "local": "1985-09-08T00:37:52+08:00", "utc": "1985-09-07T16:37:52Z", "ms": 494959071578.7847 }, "end": { "local": "1985-09-08T01:25:52+08:00", "utc": "1985-09-07T17:25:52Z", "ms": 494961951578.7847 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 07:11 on Sat 7 Sep to 09:12 on Sun 8 Sep.", "fact": "1985-09-06T23:10:56Z → 1985-09-08T01:12:27Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:38–01:26 on the 6th, 00:38–01:26 on the 7th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during niśītha. It covers 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20684 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Chengdu, 1985: Saturday 7 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": "1985-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-07", "confidence": "determinate" } ], "quote": "In Chengdu, Janmāṣṭamī 1985 falls on Saturday 7 September. Aṣṭamī runs from 07:11 on Sat 7 Sep to 09:12 on Sun 8 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-09-11", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15427, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-09-10T11:14:10+08:00", "utc": "1985-09-10T03:14:10Z", "ms": 495170050249.4091 }, "end": { "local": "1985-09-11T11:02:51+08:00", "utc": "1985-09-11T03:02:51Z", "ms": 495255771002.35297 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-10T11:14:10+08:00", "utc": "1985-09-10T03:14:10Z", "ms": 495170050249.4091 }, "end": { "local": "1985-09-11T11:02:51+08:00", "utc": "1985-09-11T03:02:51Z", "ms": 495255771002.35297 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-09-10", "window": { "start": { "local": "1985-09-10T06:45:10+08:00", "utc": "1985-09-09T22:45:10Z", "ms": 495153910355.29987 }, "end": { "local": "1985-09-10T06:45:10+08:00", "utc": "1985-09-09T22:45:10Z", "ms": 495153910355.29987 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-09-11", "window": { "start": { "local": "1985-09-11T06:45:44+08:00", "utc": "1985-09-10T22:45:44Z", "ms": 495240344103.2139 }, "end": { "local": "1985-09-11T06:45:44+08:00", "utc": "1985-09-10T22:45:44Z", "ms": 495240344103.2139 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:14 on Tue 10 Sep to 11:03 on Wed 11 Sep.", "fact": "1985-09-10T03:14:10Z → 1985-09-11T03:02:51Z" }, { "step": "kaala", "text": "Sunrise is at 06:45 on the 10th and 06:46 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 15427 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Chengdu, 1985: Wednesday 11 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": "1985-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-11", "confidence": "determinate" } ], "quote": "In Chengdu, Ajā Ekādaśī 1985 falls on Wednesday 11 September. Ekādaśī runs from 11:14 on Tue 10 Sep to 11:03 on Wed 11 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-09-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-09-12", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32986, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-09-12T10:03:38+08:00", "utc": "1985-09-12T02:03:38Z", "ms": 495338618288.9172 }, "end": { "local": "1985-09-13T08:21:31+08:00", "utc": "1985-09-13T00:21:31Z", "ms": 495418891260.2602 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-12T10:03:38+08:00", "utc": "1985-09-12T02:03:38Z", "ms": 495338618288.9172 }, "end": { "local": "1985-09-13T08:21:31+08:00", "utc": "1985-09-13T00:21:31Z", "ms": 495418891260.2602 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-09-12", "window": { "start": { "local": "1985-09-12T19:13:24+08:00", "utc": "1985-09-12T11:13:24Z", "ms": 495371603872.2651 }, "end": { "local": "1985-09-12T20:45:52+08:00", "utc": "1985-09-12T12:45:52Z", "ms": 495377151572.1936 } }, "covered_min": 92, "window_min": 92, "qualifies": true }, { "local_date": "1985-09-13", "window": { "start": { "local": "1985-09-13T19:12:08+08:00", "utc": "1985-09-13T11:12:08Z", "ms": 495457927927.5895 }, "end": { "local": "1985-09-13T20:44:50+08:00", "utc": "1985-09-13T12:44:50Z", "ms": 495463490258.18536 } }, "covered_min": 0, "window_min": 93, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:04 on Thu 12 Sep to 08:22 on Fri 13 Sep.", "fact": "1985-09-12T02:03:38Z → 1985-09-13T00:21:31Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:13–20:46 on the 12th, 19:12–20:45 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 92 of 92 minutes on the 12th and 0 of 93 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 32986 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Thursday 12 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": "1985-09-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-12", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Thursday 12 September. Trayodaśī runs from 10:04 on Thu 12 Sep to 08:22 on Fri 13 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-09-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33548, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-09-13T08:21:31+08:00", "utc": "1985-09-13T00:21:31Z", "ms": 495418891260.2602 }, "end": { "local": "1985-09-14T06:03:59+08:00", "utc": "1985-09-13T22:03:59Z", "ms": 495497038742.24146 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-13T08:21:31+08:00", "utc": "1985-09-13T00:21:31Z", "ms": 495418891260.2602 }, "end": { "local": "1985-09-14T06:03:59+08:00", "utc": "1985-09-13T22:03:59Z", "ms": 495497038742.24146 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-09-12", "window": { "start": { "local": "1985-09-12T19:13:24+08:00", "utc": "1985-09-12T11:13:24Z", "ms": 495371603872.2651 }, "end": { "local": "1985-09-12T20:45:52+08:00", "utc": "1985-09-12T12:45:52Z", "ms": 495377151572.1936 } }, "covered_min": 0, "window_min": 92, "qualifies": false }, { "local_date": "1985-09-13", "window": { "start": { "local": "1985-09-13T19:12:08+08:00", "utc": "1985-09-13T11:12:08Z", "ms": 495457927927.5895 }, "end": { "local": "1985-09-13T20:44:50+08:00", "utc": "1985-09-13T12:44:50Z", "ms": 495463490258.18536 } }, "covered_min": 93, "window_min": 93, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:22 on Fri 13 Sep to 06:04 on Sat 14 Sep.", "fact": "1985-09-13T00:21:31Z → 1985-09-13T22:03:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:13–20:46 on the 12th, 19:12–20:45 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 92 minutes on the 12th and 93 of 93 on the 13th.", "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 33548 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Chengdu, 1985: Friday 13 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": "1985-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-13", "confidence": "determinate" } ], "quote": "In Chengdu, Aghora Caturdaśī 1985 falls on Friday 13 September. Caturdaśī runs from 08:22 on Fri 13 Sep to 06:04 on Sat 14 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/shivaratri?on=1985-09-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16812, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-09-13T08:21:31+08:00", "utc": "1985-09-13T00:21:31Z", "ms": 495418891260.2602 }, "end": { "local": "1985-09-14T06:03:59+08:00", "utc": "1985-09-13T22:03:59Z", "ms": 495497038742.24146 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-13T08:21:31+08:00", "utc": "1985-09-13T00:21:31Z", "ms": 495418891260.2602 }, "end": { "local": "1985-09-14T06:03:59+08:00", "utc": "1985-09-13T22:03:59Z", "ms": 495497038742.24146 } }, "kaala": "nishita", "days": [ { "local_date": "1985-09-12", "window": { "start": { "local": "1985-09-13T00:36:08+08:00", "utc": "1985-09-12T16:36:08Z", "ms": 495390967746.9971 }, "end": { "local": "1985-09-13T01:24:08+08:00", "utc": "1985-09-12T17:24:08Z", "ms": 495393847746.9971 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-09-13", "window": { "start": { "local": "1985-09-14T00:35:47+08:00", "utc": "1985-09-13T16:35:47Z", "ms": 495477346667.32404 }, "end": { "local": "1985-09-14T01:23:47+08:00", "utc": "1985-09-13T17:23:47Z", "ms": 495480226667.32404 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:22 on Fri 13 Sep to 06:04 on Sat 14 Sep.", "fact": "1985-09-13T00:21:31Z → 1985-09-13T22:03:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:36–01:24 on the 12th, 00:36–01:24 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 16812 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Friday 13 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-13", "confidence": "determinate" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Friday 13 September. Caturdaśī runs from 08:22 on Fri 13 Sep to 06:04 on Sat 14 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/shivaratri?on=1985-09-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33293, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1985-09-15T03:19:54+08:00", "utc": "1985-09-14T19:19:54Z", "ms": 495573594215.1342 }, "end": { "local": "1985-09-16T00:18:43+08:00", "utc": "1985-09-15T16:18:43Z", "ms": 495649123261.41016 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-15T03:19:54+08:00", "utc": "1985-09-14T19:19:54Z", "ms": 495573594215.1342 }, "end": { "local": "1985-09-16T00:18:43+08:00", "utc": "1985-09-15T16:18:43Z", "ms": 495649123261.41016 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-15", "window": { "start": { "local": "1985-09-15T12:34:47+08:00", "utc": "1985-09-15T04:34:47Z", "ms": 495606887400.52325 }, "end": { "local": "1985-09-15T13:22:47+08:00", "utc": "1985-09-15T05:22:47Z", "ms": 495609767400.52325 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-09-16", "window": { "start": { "local": "1985-09-16T12:34:26+08:00", "utc": "1985-09-16T04:34:26Z", "ms": 495693266146.9536 }, "end": { "local": "1985-09-16T13:22:26+08:00", "utc": "1985-09-16T05:22:26Z", "ms": 495696146146.9536 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 03:20 on Sun 15 Sep to 00:19 on Mon 16 Sep.", "fact": "1985-09-14T19:19:54Z → 1985-09-15T16:18:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 15th, 12:34–13:22 on the 16th.", "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 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33293 s" }, { "step": "ruling", "text": "Rudra Vrata, Chengdu, 1985: Sunday 15 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": "1985-09-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-15", "confidence": "determinate" } ], "quote": "In Chengdu, Rudra Vrata 1985 falls on Sunday 15 September. Pratipadā runs from 03:20 on Sun 15 Sep to 00:19 on Mon 16 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16773, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1985-09-16T21:09:44+08:00", "utc": "1985-09-16T13:09:44Z", "ms": 495724184023.38794 }, "end": { "local": "1985-09-17T18:01:38+08:00", "utc": "1985-09-17T10:01:38Z", "ms": 495799298110.90894 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-16T21:09:44+08:00", "utc": "1985-09-16T13:09:44Z", "ms": 495724184023.38794 }, "end": { "local": "1985-09-17T18:01:38+08:00", "utc": "1985-09-17T10:01:38Z", "ms": 495799298110.90894 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-16", "window": { "start": { "local": "1985-09-16T12:34:26+08:00", "utc": "1985-09-16T04:34:26Z", "ms": 495693266146.9536 }, "end": { "local": "1985-09-16T13:22:26+08:00", "utc": "1985-09-16T05:22:26Z", "ms": 495696146146.9536 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-09-17", "window": { "start": { "local": "1985-09-17T12:34:05+08:00", "utc": "1985-09-17T04:34:05Z", "ms": 495779644869.3559 }, "end": { "local": "1985-09-17T13:22:05+08:00", "utc": "1985-09-17T05:22:05Z", "ms": 495782524869.3559 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 21:10 on Mon 16 Sep to 18:02 on Tue 17 Sep.", "fact": "1985-09-16T13:09:44Z → 1985-09-17T10:01:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 on the 16th, 12:34–13:22 on the 17th.", "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 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16773 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Chengdu, 1985: Tuesday 17 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": "1985-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-17", "confidence": "determinate" } ], "quote": "In Chengdu, Haritālikā Vrata (Hartalika Teej) 1985 falls on Tuesday 17 September. Tṛtīyā runs from 21:10 on Mon 16 Sep to 18:02 on Tue 17 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6026, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-09-17T18:01:38+08:00", "utc": "1985-09-17T10:01:38Z", "ms": 495799298110.90894 }, "end": { "local": "1985-09-18T15:02:09+08:00", "utc": "1985-09-18T07:02:09Z", "ms": 495874929086.5707 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-17T18:01:38+08:00", "utc": "1985-09-17T10:01:38Z", "ms": 495799298110.90894 }, "end": { "local": "1985-09-18T15:02:09+08:00", "utc": "1985-09-18T07:02:09Z", "ms": 495874929086.5707 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-17", "window": { "start": { "local": "1985-09-17T12:34:05+08:00", "utc": "1985-09-17T04:34:05Z", "ms": 495779644869.3559 }, "end": { "local": "1985-09-17T13:22:05+08:00", "utc": "1985-09-17T05:22:05Z", "ms": 495782524869.3559 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-09-18", "window": { "start": { "local": "1985-09-18T12:33:44+08:00", "utc": "1985-09-18T04:33:44Z", "ms": 495866023583.62146 }, "end": { "local": "1985-09-18T13:21:44+08:00", "utc": "1985-09-18T05:21:44Z", "ms": 495868903583.62146 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:02 on Tue 17 Sep to 15:02 on Wed 18 Sep.", "fact": "1985-09-17T10:01:38Z → 1985-09-18T07:02:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 on the 17th, 12:34–13:22 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6026 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Chengdu, 1985: Wednesday 18 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": "1985-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-18", "confidence": "determinate" } ], "quote": "In Chengdu, Gaṇeśa Caturthī 1985 falls on Wednesday 18 September. Caturthī runs from 18:02 on Tue 17 Sep to 15:02 on Wed 18 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 935, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1985-09-18T15:02:09+08:00", "utc": "1985-09-18T07:02:09Z", "ms": 495874929086.5707 }, "end": { "local": "1985-09-19T12:17:47+08:00", "utc": "1985-09-19T04:17:47Z", "ms": 495951466807.20996 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-18T15:02:09+08:00", "utc": "1985-09-18T07:02:09Z", "ms": 495874929086.5707 }, "end": { "local": "1985-09-19T12:17:47+08:00", "utc": "1985-09-19T04:17:47Z", "ms": 495951466807.20996 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-18", "window": { "start": { "local": "1985-09-18T12:33:44+08:00", "utc": "1985-09-18T04:33:44Z", "ms": 495866023583.62146 }, "end": { "local": "1985-09-18T13:21:44+08:00", "utc": "1985-09-18T05:21:44Z", "ms": 495868903583.62146 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-09-19", "window": { "start": { "local": "1985-09-19T12:33:22+08:00", "utc": "1985-09-19T04:33:22Z", "ms": 495952402306.5258 }, "end": { "local": "1985-09-19T13:21:22+08:00", "utc": "1985-09-19T05:21:22Z", "ms": 495955282306.5258 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 15:02 on Wed 18 Sep to 12:18 on Thu 19 Sep.", "fact": "1985-09-18T07:02:09Z → 1985-09-19T04:17:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 on the 18th, 12:33–13:21 on the 19th.", "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 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: disputed → second-day · margin 935 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Chengdu, 1985: Thursday 19 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": "1985-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-19", "confidence": "determinate" } ], "quote": "In Chengdu, Ṛṣi Pañcamī 1985 falls on Thursday 19 September. Pañcamī runs from 15:02 on Wed 18 Sep to 12:18 on Thu 19 Sep, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 935, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1985-09-19T12:17:47+08:00", "utc": "1985-09-19T04:17:47Z", "ms": 495951466807.20996 }, "end": { "local": "1985-09-20T09:53:37+08:00", "utc": "1985-09-20T01:53:37Z", "ms": 496029217491.65594 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-19T12:17:47+08:00", "utc": "1985-09-19T04:17:47Z", "ms": 495951466807.20996 }, "end": { "local": "1985-09-20T09:53:37+08:00", "utc": "1985-09-20T01:53:37Z", "ms": 496029217491.65594 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-19", "window": { "start": { "local": "1985-09-19T12:33:22+08:00", "utc": "1985-09-19T04:33:22Z", "ms": 495952402306.5258 }, "end": { "local": "1985-09-19T13:21:22+08:00", "utc": "1985-09-19T05:21:22Z", "ms": 495955282306.5258 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-09-20", "window": { "start": { "local": "1985-09-20T12:33:01+08:00", "utc": "1985-09-20T04:33:01Z", "ms": 496038781055.9214 }, "end": { "local": "1985-09-20T13:21:01+08:00", "utc": "1985-09-20T05:21:01Z", "ms": 496041661055.9214 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 12:18 on Thu 19 Sep to 09:54 on Fri 20 Sep.", "fact": "1985-09-19T04:17:47Z → 1985-09-20T01:53:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:33–13:21 on the 19th, 12:33–13:21 on the 20th.", "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 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 935 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Chengdu, 1985: Thursday 19 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": "1985-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-19", "confidence": "determinate" } ], "quote": "In Chengdu, Sūrya Ṣaṣṭhī (Bhādrapada) 1985 falls on Thursday 19 September. Ṣaṣṭhī runs from 12:18 on Thu 19 Sep to 09:54 on Fri 20 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9564, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1985-09-20T09:53:37+08:00", "utc": "1985-09-20T01:53:37Z", "ms": 496029217491.65594 }, "end": { "local": "1985-09-21T07:53:21+08:00", "utc": "1985-09-20T23:53:21Z", "ms": 496108400634.3963 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-20T09:53:37+08:00", "utc": "1985-09-20T01:53:37Z", "ms": 496029217491.65594 }, "end": { "local": "1985-09-21T07:53:21+08:00", "utc": "1985-09-20T23:53:21Z", "ms": 496108400634.3963 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-20", "window": { "start": { "local": "1985-09-20T12:33:01+08:00", "utc": "1985-09-20T04:33:01Z", "ms": 496038781055.9214 }, "end": { "local": "1985-09-20T13:21:01+08:00", "utc": "1985-09-20T05:21:01Z", "ms": 496041661055.9214 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-09-21", "window": { "start": { "local": "1985-09-21T12:32:40+08:00", "utc": "1985-09-21T04:32:40Z", "ms": 496125159850.79553 }, "end": { "local": "1985-09-21T13:20:40+08:00", "utc": "1985-09-21T05:20:40Z", "ms": 496128039850.79553 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 09:54 on Fri 20 Sep to 07:53 on Sat 21 Sep.", "fact": "1985-09-20T01:53:37Z → 1985-09-20T23:53:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:33–13:21 on the 20th, 12:33–13:21 on the 21st.", "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 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: purvaviddha → only-day · margin 9564 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Chengdu, 1985: Friday 20 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": "1985-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-20", "confidence": "determinate" } ], "quote": "In Chengdu, Muktābharaṇa Vrata 1985 falls on Friday 20 September. Saptamī runs from 09:54 on Fri 20 Sep to 07:53 on Sat 21 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16759, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1985-09-21T07:53:21+08:00", "utc": "1985-09-20T23:53:21Z", "ms": 496108400634.3963 }, "end": { "local": "1985-09-22T06:19:14+08:00", "utc": "1985-09-21T22:19:14Z", "ms": 496189154151.9611 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-21T07:53:21+08:00", "utc": "1985-09-20T23:53:21Z", "ms": 496108400634.3963 }, "end": { "local": "1985-09-22T06:19:14+08:00", "utc": "1985-09-21T22:19:14Z", "ms": 496189154151.9611 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-21", "window": { "start": { "local": "1985-09-21T12:32:40+08:00", "utc": "1985-09-21T04:32:40Z", "ms": 496125159850.79553 }, "end": { "local": "1985-09-21T13:20:40+08:00", "utc": "1985-09-21T05:20:40Z", "ms": 496128039850.79553 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-09-22", "window": { "start": { "local": "1985-09-22T12:32:19+08:00", "utc": "1985-09-22T04:32:19Z", "ms": 496211538711.2224 }, "end": { "local": "1985-09-22T13:20:19+08:00", "utc": "1985-09-22T05:20:19Z", "ms": 496214418711.2224 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 07:53 on Sat 21 Sep to 06:19 on Sun 22 Sep.", "fact": "1985-09-20T23:53:21Z → 1985-09-21T22:19:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:33–13:21 on the 21st, 12:32–13:20 on the 22nd.", "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 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16759 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Chengdu, 1985: Saturday 21 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": "1985-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-21", "confidence": "determinate" } ], "quote": "In Chengdu, Rādhāṣṭamī 1985 falls on Saturday 21 September. Aṣṭamī runs from 07:53 on Sat 21 Sep to 06:19 on Sun 22 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-09-24", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8381, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-09-24T04:33:25+08:00", "utc": "1985-09-23T20:33:25Z", "ms": 496355604676.7678 }, "end": { "local": "1985-09-25T04:22:01+08:00", "utc": "1985-09-24T20:22:01Z", "ms": 496441320863.58 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-24T04:33:25+08:00", "utc": "1985-09-23T20:33:25Z", "ms": 496355604676.7678 }, "end": { "local": "1985-09-25T04:22:01+08:00", "utc": "1985-09-24T20:22:01Z", "ms": 496441320863.58 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-09-24", "window": { "start": { "local": "1985-09-24T06:53:06+08:00", "utc": "1985-09-23T22:53:06Z", "ms": 496363986008.572 }, "end": { "local": "1985-09-24T06:53:06+08:00", "utc": "1985-09-23T22:53:06Z", "ms": 496363986008.572 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-09-25", "window": { "start": { "local": "1985-09-25T06:53:41+08:00", "utc": "1985-09-24T22:53:41Z", "ms": 496450420563.7813 }, "end": { "local": "1985-09-25T06:53:41+08:00", "utc": "1985-09-24T22:53:41Z", "ms": 496450420563.7813 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:33 on Tue 24 Sep to 04:22 on Wed 25 Sep.", "fact": "1985-09-23T20:33:25Z → 1985-09-24T20:22:01Z" }, { "step": "kaala", "text": "Sunrise is at 06:53 on the 24th and 06:54 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 8381 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Chengdu, 1985: Tuesday 24 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": "1985-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-24", "confidence": "determinate" } ], "quote": "In Chengdu, Parivartanī Ekādaśī 1985 falls on Tuesday 24 September. Ekādaśī runs from 04:33 on Tue 24 Sep to 04:22 on Wed 25 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-09-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28369, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1985-09-25T04:22:01+08:00", "utc": "1985-09-24T20:22:01Z", "ms": 496441320863.58 }, "end": { "local": "1985-09-26T04:38:06+08:00", "utc": "1985-09-25T20:38:06Z", "ms": 496528685927.489 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-25T04:22:01+08:00", "utc": "1985-09-24T20:22:01Z", "ms": 496441320863.58 }, "end": { "local": "1985-09-26T04:38:06+08:00", "utc": "1985-09-25T20:38:06Z", "ms": 496528685927.489 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-09-25", "window": { "start": { "local": "1985-09-25T12:31:16+08:00", "utc": "1985-09-25T04:31:16Z", "ms": 496470675900.235 }, "end": { "local": "1985-09-25T13:19:16+08:00", "utc": "1985-09-25T05:19:16Z", "ms": 496473555900.235 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-09-26", "window": { "start": { "local": "1985-09-26T12:30:55+08:00", "utc": "1985-09-26T04:30:55Z", "ms": 496557055240.7423 }, "end": { "local": "1985-09-26T13:18:55+08:00", "utc": "1985-09-26T05:18:55Z", "ms": 496559935240.7423 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 04:22 on Wed 25 Sep to 04:38 on Thu 26 Sep.", "fact": "1985-09-24T20:22:01Z → 1985-09-25T20:38:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 25th, 12:31–13:19 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28369 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Chengdu, 1985: Wednesday 25 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": "1985-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-25", "confidence": "determinate" } ], "quote": "In Chengdu, Vāmana Jayantī 1985 falls on Wednesday 25 September. Dvādaśī runs from 04:22 on Wed 25 Sep to 04:38 on Thu 26 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/pradosha-vrata?on=1985-09-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29135, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-09-26T04:38:06+08:00", "utc": "1985-09-25T20:38:06Z", "ms": 496528685927.489 }, "end": { "local": "1985-09-27T05:21:29+08:00", "utc": "1985-09-26T21:21:29Z", "ms": 496617689145.00476 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-26T04:38:06+08:00", "utc": "1985-09-25T20:38:06Z", "ms": 496528685927.489 }, "end": { "local": "1985-09-27T05:21:29+08:00", "utc": "1985-09-26T21:21:29Z", "ms": 496617689145.00476 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-09-25", "window": { "start": { "local": "1985-09-25T18:56:51+08:00", "utc": "1985-09-25T10:56:51Z", "ms": 496493811236.6886 }, "end": { "local": "1985-09-25T20:32:30+08:00", "utc": "1985-09-25T12:32:30Z", "ms": 496499550440.3299 } }, "covered_min": 0, "window_min": 96, "qualifies": false }, { "local_date": "1985-09-26", "window": { "start": { "local": "1985-09-26T18:55:35+08:00", "utc": "1985-09-26T10:55:35Z", "ms": 496580135217.48627 }, "end": { "local": "1985-09-26T20:31:29+08:00", "utc": "1985-09-26T12:31:29Z", "ms": 496585889205.28375 } }, "covered_min": 96, "window_min": 96, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:38 on Thu 26 Sep to 05:21 on Fri 27 Sep.", "fact": "1985-09-25T20:38:06Z → 1985-09-26T21:21:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:57–20:33 on the 25th, 18:56–20:31 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 96 minutes on the 25th and 96 of 96 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 29135 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Thursday 26 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": "1985-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-26", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Thursday 26 September. Trayodaśī runs from 04:38 on Thu 26 Sep to 05:21 on Fri 27 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-09-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1413, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-09-27T05:21:29+08:00", "utc": "1985-09-26T21:21:29Z", "ms": 496617689145.00476 }, "end": { "local": "1985-09-28T06:31:53+08:00", "utc": "1985-09-27T22:31:53Z", "ms": 496708312541.94415 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1985-09-27T05:21:29+08:00", "utc": "1985-09-26T21:21:29Z", "ms": 496617689145.00476 }, "end": { "local": "1985-09-28T06:31:53+08:00", "utc": "1985-09-27T22:31:53Z", "ms": 496708312541.94415 } }, "kaala": "udaya-3", "days": [ { "local_date": "1985-09-27", "window": { "start": { "local": "1985-09-27T06:54:50+08:00", "utc": "1985-09-26T22:54:50Z", "ms": 496623290125.9674 }, "end": { "local": "1985-09-27T09:18:44+08:00", "utc": "1985-09-27T01:18:44Z", "ms": 496631923979.0298 } }, "covered_min": 144, "window_min": 144, "qualifies": true }, { "local_date": "1985-09-28", "window": { "start": { "local": "1985-09-28T06:55:25+08:00", "utc": "1985-09-27T22:55:25Z", "ms": 496709725166.77325 }, "end": { "local": "1985-09-28T09:18:57+08:00", "utc": "1985-09-28T01:18:57Z", "ms": 496718336891.0339 } }, "covered_min": 0, "window_min": 144, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:21 on Fri 27 Sep to 06:32 on Sat 28 Sep.", "fact": "1985-09-26T21:21:29Z → 1985-09-27T22:31:53Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:55–09:19 on the 27th, 06:55–09:19 on the 28th.", "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 144 of 144 minutes on the 27th and 0 of 144 on the 28th.", "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 1413 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Chengdu, 1985: Friday 27 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": "1985-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-09-27", "confidence": "determinate" } ], "quote": "In Chengdu, Ananta Caturdaśī 1985 falls on Friday 27 September. Caturdaśī runs from 05:21 on Fri 27 Sep to 06:32 on Sat 28 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-10-02", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12175, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-10-02T15:06:27+08:00", "utc": "1985-10-02T07:06:27Z", "ms": 497084787185.58264 }, "end": { "local": "1985-10-03T17:47:36+08:00", "utc": "1985-10-03T09:47:36Z", "ms": 497180856446.51636 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-02T15:06:27+08:00", "utc": "1985-10-02T07:06:27Z", "ms": 497084787185.58264 }, "end": { "local": "1985-10-03T17:47:36+08:00", "utc": "1985-10-03T09:47:36Z", "ms": 497180856446.51636 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-10-02", "window": { "start": { "local": "1985-10-02T20:37:05+08:00", "utc": "1985-10-02T12:37:05Z", "ms": 497104624595.236 }, "end": { "local": "1985-10-02T20:37:05+08:00", "utc": "1985-10-02T12:37:05Z", "ms": 497104624595.236 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-10-03", "window": { "start": { "local": "1985-10-03T21:10:31+08:00", "utc": "1985-10-03T13:10:31Z", "ms": 497193031438.56537 }, "end": { "local": "1985-10-03T21:10:31+08:00", "utc": "1985-10-03T13:10:31Z", "ms": 497193031438.56537 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:06 on Wed 2 Oct to 17:48 on Thu 3 Oct.", "fact": "1985-10-02T07:06:27Z → 1985-10-03T09:47:36Z" }, { "step": "kaala", "text": "Moonrise is at 20:37 on the 2nd and 21:11 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 12175 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Wednesday 2 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": "1985-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-02", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Wednesday 2 October. Caturthī runs from 15:06 on Wed 2 Oct to 17:48 on Thu 3 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-10-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 415, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1985-10-04T20:22:54+08:00", "utc": "1985-10-04T12:22:54Z", "ms": 497276573883.53674 }, "end": { "local": "1985-10-05T22:39:44+08:00", "utc": "1985-10-05T14:39:44Z", "ms": 497371183925.4441 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-04T20:22:54+08:00", "utc": "1985-10-04T12:22:54Z", "ms": 497276573883.53674 }, "end": { "local": "1985-10-05T22:39:44+08:00", "utc": "1985-10-05T14:39:44Z", "ms": 497371183925.4441 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-10-04", "window": { "start": { "local": "1985-10-04T21:48:45+08:00", "utc": "1985-10-04T13:48:45Z", "ms": 497281725031.3943 }, "end": { "local": "1985-10-04T21:48:45+08:00", "utc": "1985-10-04T13:48:45Z", "ms": 497281725031.3943 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-10-05", "window": { "start": { "local": "1985-10-05T22:32:49+08:00", "utc": "1985-10-05T14:32:49Z", "ms": 497370768697.259 }, "end": { "local": "1985-10-05T22:32:49+08:00", "utc": "1985-10-05T14:32:49Z", "ms": 497370768697.259 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:23 on Fri 4 Oct to 22:40 on Sat 5 Oct.", "fact": "1985-10-04T12:22:54Z → 1985-10-05T14:39:44Z" }, { "step": "kaala", "text": "Moonrise is at 21:49 on the 4th and 22:33 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is on the 4th and is on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both moonrises qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 415 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Chengdu, 1985: Friday 4 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chandra-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-04", "confidence": "boundary" } ], "quote": "In Chengdu, Candra Ṣaṣṭhī 1985 falls on Friday 4 October. Ṣaṣṭhī runs from 20:23 on Fri 4 Oct to 22:40 on Sat 5 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14659, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1985-10-07T00:25:51+08:00", "utc": "1985-10-06T16:25:51Z", "ms": 497463951108.1558 }, "end": { "local": "1985-10-08T01:31:07+08:00", "utc": "1985-10-07T17:31:07Z", "ms": 497554266625.61346 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-07T00:25:51+08:00", "utc": "1985-10-06T16:25:51Z", "ms": 497463951108.1558 }, "end": { "local": "1985-10-08T01:31:07+08:00", "utc": "1985-10-07T17:31:07Z", "ms": 497554266625.61346 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-10-06", "window": { "start": { "local": "1985-10-06T18:43:11+08:00", "utc": "1985-10-06T10:43:11Z", "ms": 497443390587.95764 }, "end": { "local": "1985-10-06T20:21:32+08:00", "utc": "1985-10-06T12:21:32Z", "ms": 497449292017.0305 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "1985-10-07", "window": { "start": { "local": "1985-10-07T18:41:58+08:00", "utc": "1985-10-07T10:41:58Z", "ms": 497529718338.0096 }, "end": { "local": "1985-10-07T20:20:34+08:00", "utc": "1985-10-07T12:20:34Z", "ms": 497535634427.88635 } }, "covered_min": 99, "window_min": 99, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:26 on Mon 7 Oct to 01:31 on Tue 8 Oct.", "fact": "1985-10-06T16:25:51Z → 1985-10-07T17:31:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:22 on the 6th, 18:42–20:21 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 0 of 98 minutes on the 6th and 99 of 99 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 14659 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Chengdu, 1985: Monday 7 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": "1985-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-07", "confidence": "determinate" } ], "quote": "In Chengdu, Jitāṣṭamī (Jitiya) 1985 falls on Monday 7 October. Aṣṭamī runs from 00:26 on Mon 7 Oct to 01:31 on Tue 8 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3756, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1985-10-07T00:25:51+08:00", "utc": "1985-10-06T16:25:51Z", "ms": 497463951108.1558 }, "end": { "local": "1985-10-08T01:31:07+08:00", "utc": "1985-10-07T17:31:07Z", "ms": 497554266625.61346 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-07T00:25:51+08:00", "utc": "1985-10-06T16:25:51Z", "ms": 497463951108.1558 }, "end": { "local": "1985-10-08T01:31:07+08:00", "utc": "1985-10-07T17:31:07Z", "ms": 497554266625.61346 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-10-06", "window": { "start": { "local": "1985-10-06T23:23:15+08:00", "utc": "1985-10-06T15:23:15Z", "ms": 497460195167.4623 }, "end": { "local": "1985-10-06T23:23:15+08:00", "utc": "1985-10-06T15:23:15Z", "ms": 497460195167.4623 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-10-07", "window": { "start": { "local": "1985-10-08T00:19:45+08:00", "utc": "1985-10-07T16:19:45Z", "ms": 497549985259.1593 }, "end": { "local": "1985-10-08T00:19:45+08:00", "utc": "1985-10-07T16:19:45Z", "ms": 497549985259.1593 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:26 on Mon 7 Oct to 01:31 on Tue 8 Oct.", "fact": "1985-10-06T16:25:51Z → 1985-10-07T17:31:07Z" }, { "step": "kaala", "text": "Moonrise is at 23:23 on the 6th and 00:20 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3756 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Chengdu, 1985: Monday 7 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalakshmi-vrata-samapana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-07", "confidence": "determinate" } ], "quote": "In Chengdu, Mahālakṣmī Vrata Samāpana 1985 falls on Monday 7 October. Aṣṭamī runs from 00:26 on Mon 7 Oct to 01:31 on Tue 8 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-10-10", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20772, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-10-10T01:16:33+08:00", "utc": "1985-10-09T17:16:33Z", "ms": 497726193369.7967 }, "end": { "local": "1985-10-10T23:55:41+08:00", "utc": "1985-10-10T15:55:41Z", "ms": 497807740980.5138 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-10T01:16:33+08:00", "utc": "1985-10-09T17:16:33Z", "ms": 497726193369.7967 }, "end": { "local": "1985-10-10T23:55:41+08:00", "utc": "1985-10-10T15:55:41Z", "ms": 497807740980.5138 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-10-10", "window": { "start": { "local": "1985-10-10T07:02:45+08:00", "utc": "1985-10-09T23:02:45Z", "ms": 497746965451.2665 }, "end": { "local": "1985-10-10T07:02:45+08:00", "utc": "1985-10-09T23:02:45Z", "ms": 497746965451.2665 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-10-11", "window": { "start": { "local": "1985-10-11T07:03:24+08:00", "utc": "1985-10-10T23:03:24Z", "ms": 497833404201.5186 }, "end": { "local": "1985-10-11T07:03:24+08:00", "utc": "1985-10-10T23:03:24Z", "ms": 497833404201.5186 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:17 on Thu 10 Oct to 23:56 on Thu 10 Oct.", "fact": "1985-10-09T17:16:33Z → 1985-10-10T15:55:41Z" }, { "step": "kaala", "text": "Sunrise is at 07:03 on the 10th and 07:03 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 20772 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Chengdu, 1985: Thursday 10 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": "1985-10-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-10", "confidence": "determinate" } ], "quote": "In Chengdu, Indirā Ekādaśī 1985 falls on Thursday 10 October. Ekādaśī runs from 01:17 on Thu 10 Oct to 23:56 on Thu 10 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-10-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-10-12", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2020, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-10-11T21:51:01+08:00", "utc": "1985-10-11T13:51:01Z", "ms": 497886661010.1112 }, "end": { "local": "1985-10-12T19:09:46+08:00", "utc": "1985-10-12T11:09:46Z", "ms": 497963385583.3642 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-11T21:51:01+08:00", "utc": "1985-10-11T13:51:01Z", "ms": 497886661010.1112 }, "end": { "local": "1985-10-12T19:09:46+08:00", "utc": "1985-10-12T11:09:46Z", "ms": 497963385583.3642 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-10-11", "window": { "start": { "local": "1985-10-11T18:37:15+08:00", "utc": "1985-10-11T10:37:15Z", "ms": 497875034834.28217 }, "end": { "local": "1985-10-11T20:16:49+08:00", "utc": "1985-10-11T12:16:49Z", "ms": 497881009298.30914 } }, "covered_min": 0, "window_min": 100, "qualifies": false }, { "local_date": "1985-10-12", "window": { "start": { "local": "1985-10-12T18:36:05+08:00", "utc": "1985-10-12T10:36:05Z", "ms": 497961365474.2127 }, "end": { "local": "1985-10-12T20:15:54+08:00", "utc": "1985-10-12T12:15:54Z", "ms": 497967354450.3025 } }, "covered_min": 34, "window_min": 100, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:51 on Fri 11 Oct to 19:10 on Sat 12 Oct.", "fact": "1985-10-11T13:51:01Z → 1985-10-12T11:09:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:37–20:17 on the 11th, 18:36–20:16 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 100 minutes on the 11th and 34 of 100 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 2020 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Saturday 12 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": "1985-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-12", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Saturday 12 October. Trayodaśī runs from 21:51 on Fri 11 Oct to 19:10 on Sat 12 Oct and covers 34 of 100 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-10-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shivaratri?on=1985-10-12", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18999, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-10-12T19:09:46+08:00", "utc": "1985-10-12T11:09:46Z", "ms": 497963385583.3642 }, "end": { "local": "1985-10-13T16:00:40+08:00", "utc": "1985-10-13T08:00:40Z", "ms": 498038439645.5537 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-12T19:09:46+08:00", "utc": "1985-10-12T11:09:46Z", "ms": 497963385583.3642 }, "end": { "local": "1985-10-13T16:00:40+08:00", "utc": "1985-10-13T08:00:40Z", "ms": 498038439645.5537 } }, "kaala": "nishita", "days": [ { "local_date": "1985-10-12", "window": { "start": { "local": "1985-10-13T00:26:24+08:00", "utc": "1985-10-12T16:26:24Z", "ms": 497982384134.5493 }, "end": { "local": "1985-10-13T01:14:24+08:00", "utc": "1985-10-12T17:14:24Z", "ms": 497985264134.5493 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-10-13", "window": { "start": { "local": "1985-10-14T00:26:10+08:00", "utc": "1985-10-13T16:26:10Z", "ms": 498068769710.37866 }, "end": { "local": "1985-10-14T01:14:10+08:00", "utc": "1985-10-13T17:14:10Z", "ms": 498071649710.37866 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:10 on Sat 12 Oct to 16:01 on Sun 13 Oct.", "fact": "1985-10-12T11:09:46Z → 1985-10-13T08:00:40Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:26–01:14 on the 12th, 00:26–01:14 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 18999 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Saturday 12 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": "1985-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-12", "confidence": "determinate" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Saturday 12 October. Caturdaśī runs from 19:10 on Sat 12 Oct to 16:01 on Sun 13 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/shivaratri?on=1985-10-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 974, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1985-10-13T16:00:40+08:00", "utc": "1985-10-13T08:00:40Z", "ms": 498038439645.5537 }, "end": { "local": "1985-10-14T12:33:18+08:00", "utc": "1985-10-14T04:33:18Z", "ms": 498112397672.5267 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-13T16:00:40+08:00", "utc": "1985-10-13T08:00:40Z", "ms": 498038439645.5537 }, "end": { "local": "1985-10-14T12:33:18+08:00", "utc": "1985-10-14T04:33:18Z", "ms": 498112397672.5267 } }, "kaala": "aparahna", "days": [ { "local_date": "1985-10-13", "window": { "start": { "local": "1985-10-13T13:58:51+08:00", "utc": "1985-10-13T05:58:51Z", "ms": 498031131182.8725 }, "end": { "local": "1985-10-13T16:16:54+08:00", "utc": "1985-10-13T08:16:54Z", "ms": 498039413978.868 } }, "covered_min": 16, "window_min": 138, "qualifies": true }, { "local_date": "1985-10-14", "window": { "start": { "local": "1985-10-14T13:58:26+08:00", "utc": "1985-10-14T05:58:26Z", "ms": 498117506315.57434 }, "end": { "local": "1985-10-14T16:16:08+08:00", "utc": "1985-10-14T08:16:08Z", "ms": 498125767538.80115 } }, "covered_min": 0, "window_min": 138, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 16:01 on Sun 13 Oct to 12:33 on Mon 14 Oct.", "fact": "1985-10-13T08:00:40Z → 1985-10-14T04:33:18Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:59–16:17 on the 13th, 13:58–16:16 on the 14th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 16 of 138 minutes on the 13th and 0 of 138 on the 14th.", "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 974 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Chengdu, 1985: Sunday 13 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": "1985-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-13", "confidence": "determinate" } ], "quote": "In Chengdu, Mahālaya Amāvāsyā 1985 falls on Sunday 13 October. Amāvasyā runs from 16:01 on Sun 13 Oct to 12:33 on Mon 14 Oct and covers 16 of 138 minutes of aparāhṇa that afternoon.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 462, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1985-10-14T12:33:18+08:00", "utc": "1985-10-14T04:33:18Z", "ms": 498112397672.5267 }, "end": { "local": "1985-10-15T08:57:31+08:00", "utc": "1985-10-15T00:57:31Z", "ms": 498185850901.8728 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-14T12:33:18+08:00", "utc": "1985-10-14T04:33:18Z", "ms": 498112397672.5267 }, "end": { "local": "1985-10-15T08:57:31+08:00", "utc": "1985-10-15T00:57:31Z", "ms": 498185850901.8728 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-10-14", "window": { "start": { "local": "1985-10-14T12:25:36+08:00", "utc": "1985-10-14T04:25:36Z", "ms": 498111935703.96094 }, "end": { "local": "1985-10-14T13:13:36+08:00", "utc": "1985-10-14T05:13:36Z", "ms": 498114815703.96094 } }, "covered_min": 40, "window_min": 48, "qualifies": true }, { "local_date": "1985-10-15", "window": { "start": { "local": "1985-10-15T12:25:22+08:00", "utc": "1985-10-15T04:25:22Z", "ms": 498198322165.15344 }, "end": { "local": "1985-10-15T13:13:22+08:00", "utc": "1985-10-15T05:13:22Z", "ms": 498201202165.15344 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 12:33 on Mon 14 Oct to 08:58 on Tue 15 Oct.", "fact": "1985-10-14T04:33:18Z → 1985-10-15T00:57:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 14th, 12:25–13:13 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 40 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 462 s" }, { "step": "ruling", "text": "Navarātrārambha, Chengdu, 1985: Monday 14 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": "1985-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-14", "confidence": "determinate" } ], "quote": "In Chengdu, Navarātrārambha (Navratri) 1985 falls on Monday 14 October. Pratipadā runs from 12:33 on Mon 14 Oct to 08:58 on Tue 15 Oct and covers 40 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-10-17", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34888, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-10-17T01:59:10+08:00", "utc": "1985-10-16T17:59:10Z", "ms": 498333550405.22064 }, "end": { "local": "1985-10-17T22:54:25+08:00", "utc": "1985-10-17T14:54:25Z", "ms": 498408864846.3931 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-17T01:59:10+08:00", "utc": "1985-10-16T17:59:10Z", "ms": 498333550405.22064 }, "end": { "local": "1985-10-17T22:54:25+08:00", "utc": "1985-10-17T14:54:25Z", "ms": 498408864846.3931 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-10-16", "window": { "start": { "local": "1985-10-16T12:25:09+08:00", "utc": "1985-10-16T04:25:09Z", "ms": 498284709181.47144 }, "end": { "local": "1985-10-16T13:13:09+08:00", "utc": "1985-10-16T05:13:09Z", "ms": 498287589181.47144 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-10-17", "window": { "start": { "local": "1985-10-17T12:24:57+08:00", "utc": "1985-10-17T04:24:57Z", "ms": 498371096765.8994 }, "end": { "local": "1985-10-17T13:12:57+08:00", "utc": "1985-10-17T05:12:57Z", "ms": 498373976765.8994 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:59 on Thu 17 Oct to 22:54 on Thu 17 Oct.", "fact": "1985-10-16T17:59:10Z → 1985-10-17T14:54:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 16th, 12:25–13:13 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34888 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Chengdu, 1985: Thursday 17 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": "1985-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-17", "confidence": "determinate" } ], "quote": "In Chengdu, Vināyaka Caturthī 1985 falls on Thursday 17 October. Caturthī runs from 01:59 on Thu 17 Oct to 22:54 on Thu 17 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-10-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31653, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1985-10-19T18:10:43+08:00", "utc": "1985-10-19T10:10:43Z", "ms": 498564643365.29517 }, "end": { "local": "1985-10-20T16:42:13+08:00", "utc": "1985-10-20T08:42:13Z", "ms": 498645733455.0877 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-19T18:10:43+08:00", "utc": "1985-10-19T10:10:43Z", "ms": 498564643365.29517 }, "end": { "local": "1985-10-20T16:42:13+08:00", "utc": "1985-10-20T08:42:13Z", "ms": 498645733455.0877 } }, "kaala": "udaya-1", "days": [ { "local_date": "1985-10-19", "window": { "start": { "local": "1985-10-19T07:08:47+08:00", "utc": "1985-10-18T23:08:47Z", "ms": 498524927494.8076 }, "end": { "local": "1985-10-19T07:54:06+08:00", "utc": "1985-10-18T23:54:06Z", "ms": 498527645654.61523 } }, "covered_min": 0, "window_min": 45, "qualifies": false }, { "local_date": "1985-10-20", "window": { "start": { "local": "1985-10-20T07:09:30+08:00", "utc": "1985-10-19T23:09:30Z", "ms": 498611369585.79785 }, "end": { "local": "1985-10-20T07:54:41+08:00", "utc": "1985-10-19T23:54:41Z", "ms": 498614080716.4099 } }, "covered_min": 45, "window_min": 45, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 18:11 on Sat 19 Oct to 16:42 on Sun 20 Oct.", "fact": "1985-10-19T10:10:43Z → 1985-10-20T08:42:13Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 07:09–07:54 on the 19th, 07:09–07:55 on the 20th.", "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 45 minutes on the 19th and 45 of 45 on the 20th.", "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 31653 s" }, { "step": "ruling", "text": "Durgā Saptamī, Chengdu, 1985: Sunday 20 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": "1985-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-20", "confidence": "determinate" } ], "quote": "In Chengdu, Durgā Saptamī 1985 falls on Sunday 20 October. Saptamī runs from 18:11 on Sat 19 Oct to 16:42 on Sun 20 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9654, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1985-10-20T16:42:13+08:00", "utc": "1985-10-20T08:42:13Z", "ms": 498645733455.0877 }, "end": { "local": "1985-10-21T15:53:07+08:00", "utc": "1985-10-21T07:53:07Z", "ms": 498729187481.1577 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-20T16:42:13+08:00", "utc": "1985-10-20T08:42:13Z", "ms": 498645733455.0877 }, "end": { "local": "1985-10-21T15:53:07+08:00", "utc": "1985-10-21T07:53:07Z", "ms": 498729187481.1577 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-10-20", "window": { "start": { "local": "1985-10-20T12:24:23+08:00", "utc": "1985-10-20T04:24:23Z", "ms": 498630263065.38837 }, "end": { "local": "1985-10-20T13:12:23+08:00", "utc": "1985-10-20T05:12:23Z", "ms": 498633143065.38837 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-10-21", "window": { "start": { "local": "1985-10-21T12:24:13+08:00", "utc": "1985-10-21T04:24:13Z", "ms": 498716653063.51886 }, "end": { "local": "1985-10-21T13:12:13+08:00", "utc": "1985-10-21T05:12:13Z", "ms": 498719533063.51886 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 16:42 on Sun 20 Oct to 15:53 on Mon 21 Oct.", "fact": "1985-10-20T08:42:13Z → 1985-10-21T07:53:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 20th, 12:24–13:12 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 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 midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9654 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Chengdu, 1985: Monday 21 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Mahastami (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-21", "confidence": "determinate" } ], "quote": "In Chengdu, Mahāṣṭamī (Durga Ashtami) 1985 falls on Monday 21 October. Aṣṭamī runs from 16:42 on Sun 20 Oct to 15:53 on Mon 21 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 904, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1985-10-22T15:43:43+08:00", "utc": "1985-10-22T07:43:43Z", "ms": 498815023279.2338 }, "end": { "local": "1985-10-23T16:12:20+08:00", "utc": "1985-10-23T08:12:20Z", "ms": 498903140081.44995 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "1985-10-22T15:43:43+08:00", "utc": "1985-10-22T07:43:43Z", "ms": 498815023279.2338 }, "end": { "local": "1985-10-22T15:58:47+08:00", "utc": "1985-10-22T07:58:47Z", "ms": 498815927438.1975 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "1985-10-21T15:30:19+08:00", "utc": "1985-10-21T07:30:19Z", "ms": 498727818516.7984 }, "end": { "local": "1985-10-22T15:58:47+08:00", "utc": "1985-10-22T07:58:47Z", "ms": 498815927438.1975 } } }, "kaala": "daytime", "days": [ { "local_date": "1985-10-22", "window": { "start": { "local": "1985-10-22T07:10:55+08:00", "utc": "1985-10-21T23:10:55Z", "ms": 498784254899.2904 }, "end": { "local": "1985-10-22T18:25:13+08:00", "utc": "1985-10-22T10:25:13Z", "ms": 498824712508.5625 } }, "covered_min": 15, "window_min": 674, "qualifies": true }, { "local_date": "1985-10-23", "window": { "start": { "local": "1985-10-23T07:11:38+08:00", "utc": "1985-10-22T23:11:38Z", "ms": 498870698127.06024 }, "end": { "local": "1985-10-23T18:24:12+08:00", "utc": "1985-10-23T10:24:12Z", "ms": 498911051879.1977 } }, "covered_min": 0, "window_min": 673, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 15:44 on Tue 22 Oct to 16:12 on Wed 23 Oct, and Śravaṇa from 15:30 on Mon 21 Oct to 15:59 on Tue 22 Oct. They are together from 15:44 on Tue 22 Oct to 15:59 on Tue 22 Oct.", "fact": "1985-10-22T07:43:43Z → 1985-10-22T07:58:47Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 07:11–18:25 on the 22nd, 07:12–18:24 on the 23rd.", "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 15 of 674 minutes on the 22nd and 0 of 673 on the 23rd.", "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 904 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Chengdu, 1985: Tuesday 22 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": "1985-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-22", "confidence": "determinate" } ], "quote": "In Chengdu, Vijayā Daśamī (Dussehra) 1985 falls on Tuesday 22 October. Daśamī runs from 15:44 on Tue 22 Oct to 16:12 on Wed 23 Oct and is with Śravaṇa in the day time that day, for 15 minutes.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9100, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1985-10-21T15:53:07+08:00", "utc": "1985-10-21T07:53:07Z", "ms": 498729187481.1577 }, "end": { "local": "1985-10-22T15:43:43+08:00", "utc": "1985-10-22T07:43:43Z", "ms": 498815023279.2338 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-21T15:53:07+08:00", "utc": "1985-10-21T07:53:07Z", "ms": 498729187481.1577 }, "end": { "local": "1985-10-22T15:43:43+08:00", "utc": "1985-10-22T07:43:43Z", "ms": 498815023279.2338 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-10-21", "window": { "start": { "local": "1985-10-21T12:24:13+08:00", "utc": "1985-10-21T04:24:13Z", "ms": 498716653063.51886 }, "end": { "local": "1985-10-21T13:12:13+08:00", "utc": "1985-10-21T05:12:13Z", "ms": 498719533063.51886 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-10-22", "window": { "start": { "local": "1985-10-22T12:24:04+08:00", "utc": "1985-10-22T04:24:04Z", "ms": 498803043703.92645 }, "end": { "local": "1985-10-22T13:12:04+08:00", "utc": "1985-10-22T05:12:04Z", "ms": 498805923703.92645 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 15:53 on Mon 21 Oct to 15:44 on Tue 22 Oct.", "fact": "1985-10-21T07:53:07Z → 1985-10-22T07:43:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 21st, 12:24–13:12 on the 22nd.", "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 21st and 48 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: purvaviddha → only-day · margin 9100 s" }, { "step": "ruling", "text": "Mahānavamī, Chengdu, 1985: Tuesday 22 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": "1985-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-22", "confidence": "determinate" } ], "quote": "In Chengdu, Mahānavamī 1985 falls on Tuesday 22 October. Navamī runs from 15:53 on Mon 21 Oct to 15:44 on Tue 22 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-10-24", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32442, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-10-23T16:12:20+08:00", "utc": "1985-10-23T08:12:20Z", "ms": 498903140081.44995 }, "end": { "local": "1985-10-24T17:15:38+08:00", "utc": "1985-10-24T09:15:38Z", "ms": 498993338338.36725 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-23T16:12:20+08:00", "utc": "1985-10-23T08:12:20Z", "ms": 498903140081.44995 }, "end": { "local": "1985-10-24T17:15:38+08:00", "utc": "1985-10-24T09:15:38Z", "ms": 498993338338.36725 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-10-23", "window": { "start": { "local": "1985-10-23T07:11:38+08:00", "utc": "1985-10-22T23:11:38Z", "ms": 498870698127.06024 }, "end": { "local": "1985-10-23T07:11:38+08:00", "utc": "1985-10-22T23:11:38Z", "ms": 498870698127.06024 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-10-24", "window": { "start": { "local": "1985-10-24T07:12:22+08:00", "utc": "1985-10-23T23:12:22Z", "ms": 498957141739.4037 }, "end": { "local": "1985-10-24T07:12:22+08:00", "utc": "1985-10-23T23:12:22Z", "ms": 498957141739.4037 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:12 on Wed 23 Oct to 17:16 on Thu 24 Oct.", "fact": "1985-10-23T08:12:20Z → 1985-10-24T09:15:38Z" }, { "step": "kaala", "text": "Sunrise is at 07:12 on the 23rd and 07:12 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 32442 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Chengdu, 1985: Thursday 24 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": "1985-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-24", "confidence": "determinate" } ], "quote": "In Chengdu, Pāśāṅkuśā Ekādaśī 1985 falls on Thursday 24 October. Ekādaśī runs from 16:12 on Wed 23 Oct to 17:16 on Thu 24 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-10-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-10-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-10-26", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1615, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-10-25T18:49:08+08:00", "utc": "1985-10-25T10:49:08Z", "ms": 499085348418.645 }, "end": { "local": "1985-10-26T20:47:40+08:00", "utc": "1985-10-26T12:47:40Z", "ms": 499178859829.4253 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1985-10-25T18:49:08+08:00", "utc": "1985-10-25T10:49:08Z", "ms": 499085348418.645 }, "end": { "local": "1985-10-26T20:47:40+08:00", "utc": "1985-10-26T12:47:40Z", "ms": 499178859829.4253 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-10-25", "window": { "start": { "local": "1985-10-25T18:22:14+08:00", "utc": "1985-10-25T10:22:14Z", "ms": 499083733550.00494 }, "end": { "local": "1985-10-25T20:05:06+08:00", "utc": "1985-10-25T12:05:06Z", "ms": 499089906427.1627 } }, "covered_min": 76, "window_min": 103, "qualifies": true }, { "local_date": "1985-10-26", "window": { "start": { "local": "1985-10-26T18:21:16+08:00", "utc": "1985-10-26T10:21:16Z", "ms": 499170075911.1703 }, "end": { "local": "1985-10-26T20:04:22+08:00", "utc": "1985-10-26T12:04:22Z", "ms": 499176262444.34607 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:49 on Fri 25 Oct to 20:48 on Sat 26 Oct.", "fact": "1985-10-25T10:49:08Z → 1985-10-26T12:47:40Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:22–20:05 on the 25th, 18:21–20:04 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 76 of 103 minutes on the 25th and 103 of 103 on the 26th.", "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 1615 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Saturday 26 October.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-10-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-10-26", "confidence": "boundary" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Saturday 26 October. Trayodaśī runs from 18:49 on Fri 25 Oct to 20:48 on Sat 26 Oct and covers all of pradoṣa that evening. It also reaches the previous evening for 76 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/chengdu/festivals/1985/pradosha-vrata?on=1985-10-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33928, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-11-01T09:32:01+08:00", "utc": "1985-11-01T01:32:01Z", "ms": 499656721025.41705 }, "end": { "local": "1985-11-02T11:51:45+08:00", "utc": "1985-11-02T03:51:45Z", "ms": 499751505245.3817 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-01T09:32:01+08:00", "utc": "1985-11-01T01:32:01Z", "ms": 499656721025.41705 }, "end": { "local": "1985-11-02T11:51:45+08:00", "utc": "1985-11-02T03:51:45Z", "ms": 499751505245.3817 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-11-01", "window": { "start": { "local": "1985-11-01T20:29:22+08:00", "utc": "1985-11-01T12:29:22Z", "ms": 499696161500.2664 }, "end": { "local": "1985-11-01T20:29:22+08:00", "utc": "1985-11-01T12:29:22Z", "ms": 499696161500.2664 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-11-02", "window": { "start": { "local": "1985-11-02T21:17:13+08:00", "utc": "1985-11-02T13:17:13Z", "ms": 499785433203.7289 }, "end": { "local": "1985-11-02T21:17:13+08:00", "utc": "1985-11-02T13:17:13Z", "ms": 499785433203.7289 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:32 on Fri 1 Nov to 11:52 on Sat 2 Nov.", "fact": "1985-11-01T01:32:01Z → 1985-11-02T03:51:45Z" }, { "step": "kaala", "text": "Moonrise is at 20:29 on the 1st and 21:17 on the 2nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 1st and is not on the 2nd.", "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 33928 s" }, { "step": "ruling", "text": "Karaka Caturthī, Chengdu, 1985: Friday 1 November.", "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": "1985-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-01", "confidence": "determinate" } ], "quote": "In Chengdu, Karaka Caturthī (Karwa Chauth) 1985 falls on Friday 1 November. Caturthī runs from 09:32 on Fri 1 Nov to 11:52 on Sat 2 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-11-01", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33928, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-11-01T09:32:01+08:00", "utc": "1985-11-01T01:32:01Z", "ms": 499656721025.41705 }, "end": { "local": "1985-11-02T11:51:45+08:00", "utc": "1985-11-02T03:51:45Z", "ms": 499751505245.3817 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-01T09:32:01+08:00", "utc": "1985-11-01T01:32:01Z", "ms": 499656721025.41705 }, "end": { "local": "1985-11-02T11:51:45+08:00", "utc": "1985-11-02T03:51:45Z", "ms": 499751505245.3817 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-11-01", "window": { "start": { "local": "1985-11-01T20:29:22+08:00", "utc": "1985-11-01T12:29:22Z", "ms": 499696161500.2664 }, "end": { "local": "1985-11-01T20:29:22+08:00", "utc": "1985-11-01T12:29:22Z", "ms": 499696161500.2664 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-11-02", "window": { "start": { "local": "1985-11-02T21:17:13+08:00", "utc": "1985-11-02T13:17:13Z", "ms": 499785433203.7289 }, "end": { "local": "1985-11-02T21:17:13+08:00", "utc": "1985-11-02T13:17:13Z", "ms": 499785433203.7289 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:32 on Fri 1 Nov to 11:52 on Sat 2 Nov.", "fact": "1985-11-01T01:32:01Z → 1985-11-02T03:51:45Z" }, { "step": "kaala", "text": "Moonrise is at 20:29 on the 1st and 21:17 on the 2nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 1st and is not 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 33928 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Friday 1 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-01", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Friday 1 November. Caturthī runs from 09:32 on Fri 1 Nov to 11:52 on Sat 2 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-11-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29476, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1985-11-05T15:59:33+08:00", "utc": "1985-11-05T07:59:33Z", "ms": 500025572789.7597 }, "end": { "local": "1985-11-06T16:02:09+08:00", "utc": "1985-11-06T08:02:09Z", "ms": 500112129162.62317 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-05T15:59:33+08:00", "utc": "1985-11-05T07:59:33Z", "ms": 500025572789.7597 }, "end": { "local": "1985-11-06T16:02:09+08:00", "utc": "1985-11-06T08:02:09Z", "ms": 500112129162.62317 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-11-05", "window": { "start": { "local": "1985-11-06T00:10:48+08:00", "utc": "1985-11-05T16:10:48Z", "ms": 500055048450.30457 }, "end": { "local": "1985-11-06T00:10:48+08:00", "utc": "1985-11-05T16:10:48Z", "ms": 500055048450.30457 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-11-06", "window": { "start": { "local": "1985-11-07T01:14:02+08:00", "utc": "1985-11-06T17:14:02Z", "ms": 500145242183.858 }, "end": { "local": "1985-11-07T01:14:02+08:00", "utc": "1985-11-06T17:14:02Z", "ms": 500145242183.858 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 16:00 on Tue 5 Nov to 16:02 on Wed 6 Nov.", "fact": "1985-11-05T07:59:33Z → 1985-11-06T08:02:09Z" }, { "step": "kaala", "text": "Moonrise is at 00:11 on the 5th and 01:14 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 5th and is not on the 6th.", "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 29476 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Chengdu, 1985: Tuesday 5 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-05", "confidence": "determinate" } ], "quote": "In Chengdu, Ahoyī Aṣṭamī 1985 falls on Tuesday 5 November. Aṣṭamī runs from 16:00 on Tue 5 Nov to 16:02 on Wed 6 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-11-09", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15307, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-11-08T13:50:17+08:00", "utc": "1985-11-08T05:50:17Z", "ms": 500277017025.3981 }, "end": { "local": "1985-11-09T11:39:59+08:00", "utc": "1985-11-09T03:39:59Z", "ms": 500355598741.93115 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-08T13:50:17+08:00", "utc": "1985-11-08T05:50:17Z", "ms": 500277017025.3981 }, "end": { "local": "1985-11-09T11:39:59+08:00", "utc": "1985-11-09T03:39:59Z", "ms": 500355598741.93115 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-11-08", "window": { "start": { "local": "1985-11-08T07:24:02+08:00", "utc": "1985-11-07T23:24:02Z", "ms": 500253842095.7664 }, "end": { "local": "1985-11-08T07:24:02+08:00", "utc": "1985-11-07T23:24:02Z", "ms": 500253842095.7664 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-11-09", "window": { "start": { "local": "1985-11-09T07:24:52+08:00", "utc": "1985-11-08T23:24:52Z", "ms": 500340291618.4896 }, "end": { "local": "1985-11-09T07:24:52+08:00", "utc": "1985-11-08T23:24:52Z", "ms": 500340291618.4896 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:50 on Fri 8 Nov to 11:40 on Sat 9 Nov.", "fact": "1985-11-08T05:50:17Z → 1985-11-09T03:39:59Z" }, { "step": "kaala", "text": "Sunrise is at 07:24 on the 8th and 07:25 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 15307 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Chengdu, 1985: Saturday 9 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": "1985-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-09", "confidence": "determinate" } ], "quote": "In Chengdu, Ramā Ekādaśī 1985 falls on Saturday 9 November. Ekādaśī runs from 13:50 on Fri 8 Nov to 11:40 on Sat 9 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-11-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23395, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1985-11-09T11:39:59+08:00", "utc": "1985-11-09T03:39:59Z", "ms": 500355598741.93115 }, "end": { "local": "1985-11-10T08:53:42+08:00", "utc": "1985-11-10T00:53:42Z", "ms": 500432021860.49243 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-09T11:39:59+08:00", "utc": "1985-11-09T03:39:59Z", "ms": 500355598741.93115 }, "end": { "local": "1985-11-10T08:53:42+08:00", "utc": "1985-11-10T00:53:42Z", "ms": 500432021860.49243 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-11-09", "window": { "start": { "local": "1985-11-09T18:09:54+08:00", "utc": "1985-11-09T10:09:54Z", "ms": 500378993609.33307 }, "end": { "local": "1985-11-09T19:56:00+08:00", "utc": "1985-11-09T11:56:00Z", "ms": 500385359984.31274 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1985-11-10", "window": { "start": { "local": "1985-11-10T18:09:15+08:00", "utc": "1985-11-10T10:09:15Z", "ms": 500465354917.5497 }, "end": { "local": "1985-11-10T19:55:33+08:00", "utc": "1985-11-10T11:55:33Z", "ms": 500471733126.2181 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 11:40 on Sat 9 Nov to 08:54 on Sun 10 Nov.", "fact": "1985-11-09T03:39:59Z → 1985-11-10T00:53:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:10–19:56 on the 9th, 18:09–19:56 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 9th and 0 of 106 on the 10th.", "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 23395 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Chengdu, 1985: Saturday 9 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": "1985-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-09", "confidence": "determinate" } ], "quote": "In Chengdu, Govatsa Dvādaśī (Vasu Baras) 1985 falls on Saturday 9 November. Dvādaśī runs from 11:40 on Sat 9 Nov to 08:54 on Sun 10 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33333, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-11-10T08:53:42+08:00", "utc": "1985-11-10T00:53:42Z", "ms": 500432021860.49243 }, "end": { "local": "1985-11-11T05:39:00+08:00", "utc": "1985-11-10T21:39:00Z", "ms": 500506739543.8673 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-10T08:53:42+08:00", "utc": "1985-11-10T00:53:42Z", "ms": 500432021860.49243 }, "end": { "local": "1985-11-11T05:39:00+08:00", "utc": "1985-11-10T21:39:00Z", "ms": 500506739543.8673 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-11-10", "window": { "start": { "local": "1985-11-10T18:09:15+08:00", "utc": "1985-11-10T10:09:15Z", "ms": 500465354917.5497 }, "end": { "local": "1985-11-10T19:55:33+08:00", "utc": "1985-11-10T11:55:33Z", "ms": 500471733126.2181 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1985-11-11", "window": { "start": { "local": "1985-11-11T18:08:38+08:00", "utc": "1985-11-11T10:08:38Z", "ms": 500551717700.2373 }, "end": { "local": "1985-11-11T19:55:08+08:00", "utc": "1985-11-11T11:55:08Z", "ms": 500558107576.9699 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:54 on Sun 10 Nov to 05:39 on Mon 11 Nov.", "fact": "1985-11-10T00:53:42Z → 1985-11-10T21:39:00Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:09–19:56 on the 10th, 18:09–19:55 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 10th and 0 of 106 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33333 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Chengdu, 1985: Sunday 10 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": "1985-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-10", "confidence": "determinate" } ], "quote": "In Chengdu, Yama Dīpadāna 1985 falls on Sunday 10 November. Trayodaśī runs from 08:54 on Sun 10 Nov to 05:39 on Mon 11 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/pradosha-vrata?on=1985-11-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33333, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-11-10T08:53:42+08:00", "utc": "1985-11-10T00:53:42Z", "ms": 500432021860.49243 }, "end": { "local": "1985-11-11T05:39:00+08:00", "utc": "1985-11-10T21:39:00Z", "ms": 500506739543.8673 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-10T08:53:42+08:00", "utc": "1985-11-10T00:53:42Z", "ms": 500432021860.49243 }, "end": { "local": "1985-11-11T05:39:00+08:00", "utc": "1985-11-10T21:39:00Z", "ms": 500506739543.8673 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-11-10", "window": { "start": { "local": "1985-11-10T18:09:15+08:00", "utc": "1985-11-10T10:09:15Z", "ms": 500465354917.5497 }, "end": { "local": "1985-11-10T19:55:33+08:00", "utc": "1985-11-10T11:55:33Z", "ms": 500471733126.2181 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1985-11-11", "window": { "start": { "local": "1985-11-11T18:08:38+08:00", "utc": "1985-11-11T10:08:38Z", "ms": 500551717700.2373 }, "end": { "local": "1985-11-11T19:55:08+08:00", "utc": "1985-11-11T11:55:08Z", "ms": 500558107576.9699 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:54 on Sun 10 Nov to 05:39 on Mon 11 Nov.", "fact": "1985-11-10T00:53:42Z → 1985-11-10T21:39:00Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:09–19:56 on the 10th, 18:09–19:55 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 10th and 0 of 106 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33333 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Sunday 10 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": "1985-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-10", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Sunday 10 November. Trayodaśī runs from 08:54 on Sun 10 Nov to 05:39 on Mon 11 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-11-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-11", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 74, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-11-11T05:39:00+08:00", "utc": "1985-11-10T21:39:00Z", "ms": 500506739543.8673 }, "end": { "local": "1985-11-12T02:04:40+08:00", "utc": "1985-11-11T18:04:40Z", "ms": 500580279997.0205 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-11T05:39:00+08:00", "utc": "1985-11-10T21:39:00Z", "ms": 500506739543.8673 }, "end": { "local": "1985-11-12T02:04:40+08:00", "utc": "1985-11-11T18:04:40Z", "ms": 500580279997.0205 } }, "kaala": "arunodaya", "days": [ { "local_date": "1985-11-11", "window": { "start": { "local": "1985-11-11T05:40:13+08:00", "utc": "1985-11-10T21:40:13Z", "ms": 500506813273.8943 }, "end": { "local": "1985-11-11T07:26:31+08:00", "utc": "1985-11-10T23:26:31Z", "ms": 500513191482.5627 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "1985-11-12", "window": { "start": { "local": "1985-11-12T05:40:52+08:00", "utc": "1985-11-11T21:40:52Z", "ms": 500593251898.9991 }, "end": { "local": "1985-11-12T07:27:22+08:00", "utc": "1985-11-11T23:27:22Z", "ms": 500599641775.7317 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:39 on Mon 11 Nov to 02:05 on Tue 12 Nov.", "fact": "1985-11-10T21:39:00Z → 1985-11-11T18:04:40Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:40–07:27 on the 11th, 05:41–07:27 on the 12th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 106 of 106 minutes on the 11th and 0 of 106 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 74 s < 300 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Chengdu, 1985: Monday 11 November.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-11-11", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-11", "confidence": "boundary" } ], "quote": "In Chengdu, Naraka Caturdaśī (Choti Diwali) 1985 falls on Monday 11 November. Caturdaśī runs from 05:39 on Mon 11 Nov to 02:05 on Tue 12 Nov and covers all of aruṇodaya that dawn. It is 1 min 14 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-11", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3160, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1985-11-12T02:04:40+08:00", "utc": "1985-11-11T18:04:40Z", "ms": 500580279997.0205 }, "end": { "local": "1985-11-12T22:20:20+08:00", "utc": "1985-11-12T14:20:20Z", "ms": 500653220060.0848 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-12T02:04:40+08:00", "utc": "1985-11-11T18:04:40Z", "ms": 500580279997.0205 }, "end": { "local": "1985-11-12T22:20:20+08:00", "utc": "1985-11-12T14:20:20Z", "ms": 500653220060.0848 } }, "kaala": "nishita", "days": [ { "local_date": "1985-11-11", "window": { "start": { "local": "1985-11-12T00:24:00+08:00", "utc": "1985-11-11T16:24:00Z", "ms": 500574239737.9845 }, "end": { "local": "1985-11-12T01:12:00+08:00", "utc": "1985-11-11T17:12:00Z", "ms": 500577119737.9845 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-11-12", "window": { "start": { "local": "1985-11-13T00:24:07+08:00", "utc": "1985-11-12T16:24:07Z", "ms": 500660647124.97314 }, "end": { "local": "1985-11-13T01:12:07+08:00", "utc": "1985-11-12T17:12:07Z", "ms": 500663527124.97314 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 02:05 on Tue 12 Nov to 22:20 on Tue 12 Nov.", "fact": "1985-11-11T18:04:40Z → 1985-11-12T14:20:20Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:24–01:12 on the 11th, 00:24–01:12 on the 12th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 0 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 3160 s" }, { "step": "ruling", "text": "Kālī Pūjā, Chengdu, 1985: Monday 11 November.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "1985-11-11", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-11", "confidence": "boundary" } ], "quote": "In Chengdu, Kālī Pūjā 1985 falls on Monday 11 November. Amāvasyā runs from 02:05 on Tue 12 Nov to 22:20 on Tue 12 Nov, and reaches niśītha on neither day.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/shivaratri?on=1985-11-11", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3160, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-11-11T05:39:00+08:00", "utc": "1985-11-10T21:39:00Z", "ms": 500506739543.8673 }, "end": { "local": "1985-11-12T02:04:40+08:00", "utc": "1985-11-11T18:04:40Z", "ms": 500580279997.0205 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-11T05:39:00+08:00", "utc": "1985-11-10T21:39:00Z", "ms": 500506739543.8673 }, "end": { "local": "1985-11-12T02:04:40+08:00", "utc": "1985-11-11T18:04:40Z", "ms": 500580279997.0205 } }, "kaala": "nishita", "days": [ { "local_date": "1985-11-10", "window": { "start": { "local": "1985-11-11T00:23:53+08:00", "utc": "1985-11-10T16:23:53Z", "ms": 500487833200.05615 }, "end": { "local": "1985-11-11T01:11:53+08:00", "utc": "1985-11-10T17:11:53Z", "ms": 500490713200.05615 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-11-11", "window": { "start": { "local": "1985-11-12T00:24:00+08:00", "utc": "1985-11-11T16:24:00Z", "ms": 500574239737.9845 }, "end": { "local": "1985-11-12T01:12:00+08:00", "utc": "1985-11-11T17:12:00Z", "ms": 500577119737.9845 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:39 on Mon 11 Nov to 02:05 on Tue 12 Nov.", "fact": "1985-11-10T21:39:00Z → 1985-11-11T18:04:40Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:24–01:12 on the 10th, 00:24–01:12 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3160 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Monday 11 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": "1985-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-11", "confidence": "determinate" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Monday 11 November. Caturdaśī runs from 05:39 on Mon 11 Nov to 02:05 on Tue 12 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/shivaratri?on=1985-11-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8737, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1985-11-12T02:04:40+08:00", "utc": "1985-11-11T18:04:40Z", "ms": 500580279997.0205 }, "end": { "local": "1985-11-12T22:20:20+08:00", "utc": "1985-11-12T14:20:20Z", "ms": 500653220060.0848 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-12T02:04:40+08:00", "utc": "1985-11-11T18:04:40Z", "ms": 500580279997.0205 }, "end": { "local": "1985-11-12T22:20:20+08:00", "utc": "1985-11-12T14:20:20Z", "ms": 500653220060.0848 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-11-11", "window": { "start": { "local": "1985-11-11T18:08:38+08:00", "utc": "1985-11-11T10:08:38Z", "ms": 500551717700.2373 }, "end": { "local": "1985-11-11T19:55:08+08:00", "utc": "1985-11-11T11:55:08Z", "ms": 500558107576.9699 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "1985-11-12", "window": { "start": { "local": "1985-11-12T18:08:02+08:00", "utc": "1985-11-12T10:08:02Z", "ms": 500638081976.6667 }, "end": { "local": "1985-11-12T19:54:43+08:00", "utc": "1985-11-12T11:54:43Z", "ms": 500644483349.5484 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 02:05 on Tue 12 Nov to 22:20 on Tue 12 Nov.", "fact": "1985-11-11T18:04:40Z → 1985-11-12T14:20:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:09–19:55 on the 11th, 18:08–19:55 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 0 of 106 minutes on the 11th and 107 of 107 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8737 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Chengdu, 1985: Tuesday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "diwali-lakshmi-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-12", "confidence": "determinate" } ], "quote": "In Chengdu, Lakṣmī Pūjā (Diwali) 1985 falls on Tuesday 12 November. Amāvasyā runs from 02:05 on Tue 12 Nov to 22:20 on Tue 12 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19454, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1985-11-12T22:20:20+08:00", "utc": "1985-11-12T14:20:20Z", "ms": 500653220060.0848 }, "end": { "local": "1985-11-13T18:36:04+08:00", "utc": "1985-11-13T10:36:04Z", "ms": 500726163626.70355 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-12T22:20:20+08:00", "utc": "1985-11-12T14:20:20Z", "ms": 500653220060.0848 }, "end": { "local": "1985-11-13T18:36:04+08:00", "utc": "1985-11-13T10:36:04Z", "ms": 500726163626.70355 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-11-12", "window": { "start": { "local": "1985-11-12T12:23:42+08:00", "utc": "1985-11-12T04:23:42Z", "ms": 500617421876.1992 }, "end": { "local": "1985-11-12T13:11:42+08:00", "utc": "1985-11-12T05:11:42Z", "ms": 500620301876.1992 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-11-13", "window": { "start": { "local": "1985-11-13T12:23:50+08:00", "utc": "1985-11-13T04:23:50Z", "ms": 500703830018.9295 }, "end": { "local": "1985-11-13T13:11:50+08:00", "utc": "1985-11-13T05:11:50Z", "ms": 500706710018.9295 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 22:20 on Tue 12 Nov to 18:36 on Wed 13 Nov.", "fact": "1985-11-12T14:20:20Z → 1985-11-13T10:36:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 12th, 12:24–13:12 on the 13th.", "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 12th and 48 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 19454 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Chengdu, 1985: Wednesday 13 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": "1985-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-13", "confidence": "determinate" } ], "quote": "In Chengdu, Govardhana Pūjā 1985 falls on Wednesday 13 November. Pratipadā runs from 22:20 on Tue 12 Nov to 18:36 on Wed 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1716, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1985-11-12T22:20:20+08:00", "utc": "1985-11-12T14:20:20Z", "ms": 500653220060.0848 }, "end": { "local": "1985-11-13T18:36:04+08:00", "utc": "1985-11-13T10:36:04Z", "ms": 500726163626.70355 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-12T22:20:20+08:00", "utc": "1985-11-12T14:20:20Z", "ms": 500653220060.0848 }, "end": { "local": "1985-11-13T18:36:04+08:00", "utc": "1985-11-13T10:36:04Z", "ms": 500726163626.70355 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-11-12", "window": { "start": { "local": "1985-11-12T18:08:02+08:00", "utc": "1985-11-12T10:08:02Z", "ms": 500638081976.6667 }, "end": { "local": "1985-11-12T19:54:43+08:00", "utc": "1985-11-12T11:54:43Z", "ms": 500644483349.5484 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1985-11-13", "window": { "start": { "local": "1985-11-13T18:07:28+08:00", "utc": "1985-11-13T10:07:28Z", "ms": 500724447764.57935 }, "end": { "local": "1985-11-13T19:54:20+08:00", "utc": "1985-11-13T11:54:20Z", "ms": 500730860455.327 } }, "covered_min": 29, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 22:20 on Tue 12 Nov to 18:36 on Wed 13 Nov.", "fact": "1985-11-12T14:20:20Z → 1985-11-13T10:36:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:08–19:55 on the 12th, 18:07–19:54 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 0 of 107 minutes on the 12th and 29 of 107 on the 13th.", "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 1716 s" }, { "step": "ruling", "text": "Bali Pūjā, Chengdu, 1985: Wednesday 13 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1985-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-13", "confidence": "determinate" } ], "quote": "In Chengdu, Bali Pūjā 1985 falls on Wednesday 13 November. Pratipadā runs from 22:20 on Tue 12 Nov to 18:36 on Wed 13 Nov and covers 29 of 107 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27286, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1985-11-12T22:20:20+08:00", "utc": "1985-11-12T14:20:20Z", "ms": 500653220060.0848 }, "end": { "local": "1985-11-13T18:36:04+08:00", "utc": "1985-11-13T10:36:04Z", "ms": 500726163626.70355 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-12T22:20:20+08:00", "utc": "1985-11-12T14:20:20Z", "ms": 500653220060.0848 }, "end": { "local": "1985-11-13T18:36:04+08:00", "utc": "1985-11-13T10:36:04Z", "ms": 500726163626.70355 } }, "kaala": "purvahna", "days": [ { "local_date": "1985-11-12", "window": { "start": { "local": "1985-11-12T07:27:22+08:00", "utc": "1985-11-11T23:27:22Z", "ms": 500599641775.7317 }, "end": { "local": "1985-11-12T11:00:55+08:00", "utc": "1985-11-12T03:00:55Z", "ms": 500612455176.04333 } }, "covered_min": 0, "window_min": 214, "qualifies": false }, { "local_date": "1985-11-13", "window": { "start": { "local": "1985-11-13T07:28:12+08:00", "utc": "1985-11-12T23:28:12Z", "ms": 500686092273.27966 }, "end": { "local": "1985-11-13T11:01:17+08:00", "utc": "1985-11-13T03:01:17Z", "ms": 500698877437.0462 } }, "covered_min": 213, "window_min": 213, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 22:20 on Tue 12 Nov to 18:36 on Wed 13 Nov.", "fact": "1985-11-12T14:20:20Z → 1985-11-13T10:36:04Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:27–11:01 on the 12th, 07:28–11:01 on the 13th.", "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 214 minutes on the 12th and 213 of 213 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27286 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Chengdu, 1985: Wednesday 13 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": "1985-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-13", "confidence": "determinate" } ], "quote": "In Chengdu, Dyūta Pratipad 1985 falls on Wednesday 13 November. Pratipadā runs from 22:20 on Tue 12 Nov to 18:36 on Wed 13 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6604, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1985-11-13T18:36:04+08:00", "utc": "1985-11-13T10:36:04Z", "ms": 500726163626.70355 }, "end": { "local": "1985-11-14T15:02:03+08:00", "utc": "1985-11-14T07:02:03Z", "ms": 500799722579.847 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-13T18:36:04+08:00", "utc": "1985-11-13T10:36:04Z", "ms": 500726163626.70355 }, "end": { "local": "1985-11-14T15:02:03+08:00", "utc": "1985-11-14T07:02:03Z", "ms": 500799722579.847 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-11-13", "window": { "start": { "local": "1985-11-13T12:23:50+08:00", "utc": "1985-11-13T04:23:50Z", "ms": 500703830018.9295 }, "end": { "local": "1985-11-13T13:11:50+08:00", "utc": "1985-11-13T05:11:50Z", "ms": 500706710018.9295 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-11-14", "window": { "start": { "local": "1985-11-14T12:23:59+08:00", "utc": "1985-11-14T04:23:59Z", "ms": 500790239013.0077 }, "end": { "local": "1985-11-14T13:11:59+08:00", "utc": "1985-11-14T05:11:59Z", "ms": 500793119013.0077 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 18:36 on Wed 13 Nov to 15:02 on Thu 14 Nov.", "fact": "1985-11-13T10:36:04Z → 1985-11-14T07:02:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 13th, 12:24–13:12 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6604 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Chengdu, 1985: Thursday 14 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": "1985-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-14", "confidence": "determinate" } ], "quote": "In Chengdu, Yama Dvitīyā (Bhai Dooj) 1985 falls on Thursday 14 November. Dvitīyā runs from 18:36 on Wed 13 Nov to 15:02 on Thu 14 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2152, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-11-15T11:48:17+08:00", "utc": "1985-11-15T03:48:17Z", "ms": 500874496742.14905 }, "end": { "local": "1985-11-16T09:04:09+08:00", "utc": "1985-11-16T01:04:09Z", "ms": 500951049126.33417 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-15T11:48:17+08:00", "utc": "1985-11-15T03:48:17Z", "ms": 500874496742.14905 }, "end": { "local": "1985-11-16T09:04:09+08:00", "utc": "1985-11-16T01:04:09Z", "ms": 500951049126.33417 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-11-15", "window": { "start": { "local": "1985-11-15T12:24:09+08:00", "utc": "1985-11-15T04:24:09Z", "ms": 500876648851.0077 }, "end": { "local": "1985-11-15T13:12:09+08:00", "utc": "1985-11-15T05:12:09Z", "ms": 500879528851.0077 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-11-16", "window": { "start": { "local": "1985-11-16T12:24:20+08:00", "utc": "1985-11-16T04:24:20Z", "ms": 500963059525.25995 }, "end": { "local": "1985-11-16T13:12:20+08:00", "utc": "1985-11-16T05:12:20Z", "ms": 500965939525.25995 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:48 on Fri 15 Nov to 09:04 on Sat 16 Nov.", "fact": "1985-11-15T03:48:17Z → 1985-11-16T01:04:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 15th, 12:24–13:12 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2152 s" }, { "step": "ruling", "text": "Nāga Caturthī, Chengdu, 1985: Friday 15 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": "1985-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-15", "confidence": "boundary" } ], "quote": "In Chengdu, Nāga Caturthī 1985 falls on Friday 15 November. Caturthī runs from 11:48 on Fri 15 Nov to 09:04 on Sat 16 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-11-15", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2152, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-11-15T11:48:17+08:00", "utc": "1985-11-15T03:48:17Z", "ms": 500874496742.14905 }, "end": { "local": "1985-11-16T09:04:09+08:00", "utc": "1985-11-16T01:04:09Z", "ms": 500951049126.33417 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-15T11:48:17+08:00", "utc": "1985-11-15T03:48:17Z", "ms": 500874496742.14905 }, "end": { "local": "1985-11-16T09:04:09+08:00", "utc": "1985-11-16T01:04:09Z", "ms": 500951049126.33417 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-11-15", "window": { "start": { "local": "1985-11-15T12:24:09+08:00", "utc": "1985-11-15T04:24:09Z", "ms": 500876648851.0077 }, "end": { "local": "1985-11-15T13:12:09+08:00", "utc": "1985-11-15T05:12:09Z", "ms": 500879528851.0077 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-11-16", "window": { "start": { "local": "1985-11-16T12:24:20+08:00", "utc": "1985-11-16T04:24:20Z", "ms": 500963059525.25995 }, "end": { "local": "1985-11-16T13:12:20+08:00", "utc": "1985-11-16T05:12:20Z", "ms": 500965939525.25995 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:48 on Fri 15 Nov to 09:04 on Sat 16 Nov.", "fact": "1985-11-15T03:48:17Z → 1985-11-16T01:04:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 15th, 12:24–13:12 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "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 2152 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Chengdu, 1985: Friday 15 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": "1985-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-15", "confidence": "boundary" } ], "quote": "In Chengdu, Vināyaka Caturthī 1985 falls on Friday 15 November. Caturthī runs from 11:48 on Fri 15 Nov to 09:04 on Sat 16 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-11-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19597, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1985-11-17T06:57:54+08:00", "utc": "1985-11-16T22:57:54Z", "ms": 501029873657.69476 }, "end": { "local": "1985-11-18T05:35:55+08:00", "utc": "1985-11-17T21:35:55Z", "ms": 501111354930.858 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-17T06:57:54+08:00", "utc": "1985-11-16T22:57:54Z", "ms": 501029873657.69476 }, "end": { "local": "1985-11-18T05:35:55+08:00", "utc": "1985-11-17T21:35:55Z", "ms": 501111354930.858 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-11-17", "window": { "start": { "local": "1985-11-17T12:24:31+08:00", "utc": "1985-11-17T04:24:31Z", "ms": 501049471028.2278 }, "end": { "local": "1985-11-17T13:12:31+08:00", "utc": "1985-11-17T05:12:31Z", "ms": 501052351028.2278 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-11-18", "window": { "start": { "local": "1985-11-18T12:24:43+08:00", "utc": "1985-11-18T04:24:43Z", "ms": 501135883352.6122 }, "end": { "local": "1985-11-18T13:12:43+08:00", "utc": "1985-11-18T05:12:43Z", "ms": 501138763352.6122 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 06:58 on Sun 17 Nov to 05:36 on Mon 18 Nov.", "fact": "1985-11-16T22:57:54Z → 1985-11-17T21:35:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 17th, 12:25–13:13 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19597 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Chengdu, 1985: Sunday 17 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": "1985-11-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-17", "confidence": "determinate" } ], "quote": "In Chengdu, Sūrya Ṣaṣṭhī (Chhath) 1985 falls on Sunday 17 November. Ṣaṣṭhī runs from 06:58 on Sun 17 Nov to 05:36 on Mon 18 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25692, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1985-11-19T05:02:04+08:00", "utc": "1985-11-18T21:02:04Z", "ms": 501195723794.077 }, "end": { "local": "1985-11-20T05:16:58+08:00", "utc": "1985-11-19T21:16:58Z", "ms": 501283018064.18274 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-19T05:02:04+08:00", "utc": "1985-11-18T21:02:04Z", "ms": 501195723794.077 }, "end": { "local": "1985-11-20T05:16:58+08:00", "utc": "1985-11-19T21:16:58Z", "ms": 501283018064.18274 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-11-19", "window": { "start": { "local": "1985-11-19T12:24:56+08:00", "utc": "1985-11-19T04:24:56Z", "ms": 501222296491.2417 }, "end": { "local": "1985-11-19T13:12:56+08:00", "utc": "1985-11-19T05:12:56Z", "ms": 501225176491.2417 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-11-20", "window": { "start": { "local": "1985-11-20T12:25:10+08:00", "utc": "1985-11-20T04:25:10Z", "ms": 501308710436.85657 }, "end": { "local": "1985-11-20T13:13:10+08:00", "utc": "1985-11-20T05:13:10Z", "ms": 501311590436.85657 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 05:02 on Tue 19 Nov to 05:17 on Wed 20 Nov.", "fact": "1985-11-18T21:02:04Z → 1985-11-19T21:16:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 19th, 12:25–13:13 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25692 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Chengdu, 1985: Tuesday 19 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": "1985-11-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-19", "confidence": "determinate" } ], "quote": "In Chengdu, Gopāṣṭamī 1985 falls on Tuesday 19 November. Aṣṭamī runs from 05:02 on Tue 19 Nov to 05:17 on Wed 20 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4638, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1985-11-20T05:16:58+08:00", "utc": "1985-11-19T21:16:58Z", "ms": 501283018064.18274 }, "end": { "local": "1985-11-21T06:17:42+08:00", "utc": "1985-11-20T22:17:42Z", "ms": 501373062084.8144 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-20T05:16:58+08:00", "utc": "1985-11-19T21:16:58Z", "ms": 501283018064.18274 }, "end": { "local": "1985-11-21T06:17:42+08:00", "utc": "1985-11-20T22:17:42Z", "ms": 501373062084.8144 } }, "kaala": "purvahna", "days": [ { "local_date": "1985-11-20", "window": { "start": { "local": "1985-11-20T07:34:09+08:00", "utc": "1985-11-19T23:34:09Z", "ms": 501291248856.90784 }, "end": { "local": "1985-11-20T11:04:10+08:00", "utc": "1985-11-20T03:04:10Z", "ms": 501303849910.207 } }, "covered_min": 210, "window_min": 210, "qualifies": true }, { "local_date": "1985-11-21", "window": { "start": { "local": "1985-11-21T07:35:00+08:00", "utc": "1985-11-20T23:35:00Z", "ms": 501377699860.57666 }, "end": { "local": "1985-11-21T11:04:37+08:00", "utc": "1985-11-21T03:04:37Z", "ms": 501390276741.44604 } }, "covered_min": 0, "window_min": 210, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 05:17 on Wed 20 Nov to 06:18 on Thu 21 Nov.", "fact": "1985-11-19T21:16:58Z → 1985-11-20T22:17:42Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:34–11:04 on the 20th, 07:35–11:05 on the 21st.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 210 of 210 minutes on the 20th and 0 of 210 on the 21st.", "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 4638 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Chengdu, 1985: Wednesday 20 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": "1985-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-20", "confidence": "determinate" } ], "quote": "In Chengdu, Akṣaya Navamī (Amla Navami) 1985 falls on Wednesday 20 November. Navamī runs from 05:17 on Wed 20 Nov to 06:18 on Thu 21 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22063, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1985-11-20T05:16:58+08:00", "utc": "1985-11-19T21:16:58Z", "ms": 501283018064.18274 }, "end": { "local": "1985-11-21T06:17:42+08:00", "utc": "1985-11-20T22:17:42Z", "ms": 501373062084.8144 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-20T05:16:58+08:00", "utc": "1985-11-19T21:16:58Z", "ms": 501283018064.18274 }, "end": { "local": "1985-11-21T06:17:42+08:00", "utc": "1985-11-20T22:17:42Z", "ms": 501373062084.8144 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-11-20", "window": { "start": { "local": "1985-11-20T12:25:10+08:00", "utc": "1985-11-20T04:25:10Z", "ms": 501308710436.85657 }, "end": { "local": "1985-11-20T13:13:10+08:00", "utc": "1985-11-20T05:13:10Z", "ms": 501311590436.85657 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-11-21", "window": { "start": { "local": "1985-11-21T12:25:25+08:00", "utc": "1985-11-21T04:25:25Z", "ms": 501395125181.88074 }, "end": { "local": "1985-11-21T13:13:25+08:00", "utc": "1985-11-21T05:13:25Z", "ms": 501398005181.88074 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 05:17 on Wed 20 Nov to 06:18 on Thu 21 Nov.", "fact": "1985-11-19T21:16:58Z → 1985-11-20T22:17:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 20th, 12:25–13:13 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 22063 s" }, { "step": "ruling", "text": "Durgā Navamī, Chengdu, 1985: Wednesday 20 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": "1985-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-20", "confidence": "determinate" } ], "quote": "In Chengdu, Durgā Navamī 1985 falls on Wednesday 20 November. Navamī runs from 05:17 on Wed 20 Nov to 06:18 on Thu 21 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-11-23", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1327, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-11-22T07:57:58+08:00", "utc": "1985-11-21T23:57:58Z", "ms": 501465478192.9976 }, "end": { "local": "1985-11-23T10:08:55+08:00", "utc": "1985-11-23T02:08:55Z", "ms": 501559734635.2582 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-22T07:57:58+08:00", "utc": "1985-11-21T23:57:58Z", "ms": 501465478192.9976 }, "end": { "local": "1985-11-23T10:08:55+08:00", "utc": "1985-11-23T02:08:55Z", "ms": 501559734635.2582 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-11-22", "window": { "start": { "local": "1985-11-22T07:35:51+08:00", "utc": "1985-11-21T23:35:51Z", "ms": 501464150786.14734 }, "end": { "local": "1985-11-22T07:35:51+08:00", "utc": "1985-11-21T23:35:51Z", "ms": 501464150786.14734 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-11-23", "window": { "start": { "local": "1985-11-23T07:36:42+08:00", "utc": "1985-11-22T23:36:42Z", "ms": 501550601601.8846 }, "end": { "local": "1985-11-23T07:36:42+08:00", "utc": "1985-11-22T23:36:42Z", "ms": 501550601601.8846 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:58 on Fri 22 Nov to 10:09 on Sat 23 Nov.", "fact": "1985-11-21T23:57:58Z → 1985-11-23T02:08:55Z" }, { "step": "kaala", "text": "Sunrise is at 07:36 on the 22nd and 07:37 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 22nd and is on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1327 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Chengdu, 1985: Saturday 23 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": "1985-11-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-23", "confidence": "determinate" } ], "quote": "In Chengdu, Prabodhinī Ekādaśī 1985 falls on Saturday 23 November. Ekādaśī runs from 07:58 on Fri 22 Nov to 10:09 on Sat 23 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-11-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-11-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9636, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-11-24T12:40:20+08:00", "utc": "1985-11-24T04:40:20Z", "ms": 501655220365.3555 }, "end": { "local": "1985-11-25T15:22:05+08:00", "utc": "1985-11-25T07:22:05Z", "ms": 501751325380.4457 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-24T12:40:20+08:00", "utc": "1985-11-24T04:40:20Z", "ms": 501655220365.3555 }, "end": { "local": "1985-11-25T15:22:05+08:00", "utc": "1985-11-25T07:22:05Z", "ms": 501751325380.4457 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-11-24", "window": { "start": { "local": "1985-11-24T18:02:56+08:00", "utc": "1985-11-24T10:02:56Z", "ms": 501674575982.98334 }, "end": { "local": "1985-11-24T19:51:40+08:00", "utc": "1985-11-24T11:51:40Z", "ms": 501681099555.14294 } }, "covered_min": 109, "window_min": 109, "qualifies": true }, { "local_date": "1985-11-25", "window": { "start": { "local": "1985-11-25T18:02:41+08:00", "utc": "1985-11-25T10:02:41Z", "ms": 501760961194.1245 }, "end": { "local": "1985-11-25T19:51:33+08:00", "utc": "1985-11-25T11:51:33Z", "ms": 501767493443.4814 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:40 on Sun 24 Nov to 15:22 on Mon 25 Nov.", "fact": "1985-11-24T04:40:20Z → 1985-11-25T07:22:05Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:03–19:52 on the 24th, 18:03–19:52 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 109 of 109 minutes on the 24th and 0 of 109 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9636 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Sunday 24 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": "1985-11-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-24", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Sunday 24 November. Trayodaśī runs from 12:40 on Sun 24 Nov to 15:22 on Mon 25 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-11-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13551, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-11-26T18:05:04+08:00", "utc": "1985-11-26T10:05:04Z", "ms": 501847503570.1888 }, "end": { "local": "1985-11-27T20:41:44+08:00", "utc": "1985-11-27T12:41:44Z", "ms": 501943304140.442 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-26T18:05:04+08:00", "utc": "1985-11-26T10:05:04Z", "ms": 501847503570.1888 }, "end": { "local": "1985-11-27T20:41:44+08:00", "utc": "1985-11-27T12:41:44Z", "ms": 501943304140.442 } }, "kaala": "nishita", "days": [ { "local_date": "1985-11-26", "window": { "start": { "local": "1985-11-27T00:27:16+08:00", "utc": "1985-11-26T16:27:16Z", "ms": 501870435614.3596 }, "end": { "local": "1985-11-27T01:15:16+08:00", "utc": "1985-11-26T17:15:16Z", "ms": 501873315614.3596 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-11-27", "window": { "start": { "local": "1985-11-28T00:27:35+08:00", "utc": "1985-11-27T16:27:35Z", "ms": 501956854821.5455 }, "end": { "local": "1985-11-28T01:15:35+08:00", "utc": "1985-11-27T17:15:35Z", "ms": 501959734821.5455 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:05 on Tue 26 Nov to 20:42 on Wed 27 Nov.", "fact": "1985-11-26T10:05:04Z → 1985-11-27T12:41:44Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:27–01:15 on the 26th, 00:28–01:16 on the 27th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13551 s" }, { "step": "ruling", "text": "Rāsayātrā, Chengdu, 1985: Tuesday 26 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": "1985-11-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-26", "confidence": "determinate" } ], "quote": "In Chengdu, Rāsayātrā 1985 falls on Tuesday 26 November. Pūrṇimā runs from 18:05 on Tue 26 Nov to 20:42 on Wed 27 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17413, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-11-26T18:05:04+08:00", "utc": "1985-11-26T10:05:04Z", "ms": 501847503570.1888 }, "end": { "local": "1985-11-27T20:41:44+08:00", "utc": "1985-11-27T12:41:44Z", "ms": 501943304140.442 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1985-11-26T18:05:04+08:00", "utc": "1985-11-26T10:05:04Z", "ms": 501847503570.1888 }, "end": { "local": "1985-11-27T20:41:44+08:00", "utc": "1985-11-27T12:41:44Z", "ms": 501943304140.442 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-11-26", "window": { "start": { "local": "1985-11-26T12:26:51+08:00", "utc": "1985-11-26T04:26:51Z", "ms": 501827210590.71387 }, "end": { "local": "1985-11-26T13:14:51+08:00", "utc": "1985-11-26T05:14:51Z", "ms": 501830090590.71387 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-11-27", "window": { "start": { "local": "1985-11-27T12:27:10+08:00", "utc": "1985-11-27T04:27:10Z", "ms": 501913629936.85034 }, "end": { "local": "1985-11-27T13:15:10+08:00", "utc": "1985-11-27T05:15:10Z", "ms": 501916509936.85034 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:05 on Tue 26 Nov to 20:42 on Wed 27 Nov.", "fact": "1985-11-26T10:05:04Z → 1985-11-27T12:41:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 26th, 12:27–13:15 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17413 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Chengdu, 1985: Wednesday 27 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": "1985-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-11-27", "confidence": "determinate" } ], "quote": "In Chengdu, Kārtikī Pūrṇimā 1985 falls on Wednesday 27 November. Pūrṇimā runs from 18:05 on Tue 26 Nov to 20:42 on Wed 27 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-12-01", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24844, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-12-01T03:00:09+08:00", "utc": "1985-11-30T19:00:09Z", "ms": 502225208670.38995 }, "end": { "local": "1985-12-02T04:21:49+08:00", "utc": "1985-12-01T20:21:49Z", "ms": 502316508777.08203 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-01T03:00:09+08:00", "utc": "1985-11-30T19:00:09Z", "ms": 502225208670.38995 }, "end": { "local": "1985-12-02T04:21:49+08:00", "utc": "1985-12-01T20:21:49Z", "ms": 502316508777.08203 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-11-30", "window": { "start": { "local": "1985-11-30T20:06:05+08:00", "utc": "1985-11-30T12:06:05Z", "ms": 502200364694.22284 }, "end": { "local": "1985-11-30T20:06:05+08:00", "utc": "1985-11-30T12:06:05Z", "ms": 502200364694.22284 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1985-12-01", "window": { "start": { "local": "1985-12-01T21:03:00+08:00", "utc": "1985-12-01T13:03:00Z", "ms": 502290180044.2812 }, "end": { "local": "1985-12-01T21:03:00+08:00", "utc": "1985-12-01T13:03:00Z", "ms": 502290180044.2812 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:00 on Sun 1 Dec to 04:22 on Mon 2 Dec.", "fact": "1985-11-30T19:00:09Z → 1985-12-01T20:21:49Z" }, { "step": "kaala", "text": "Moonrise is at 20:06 on the 30th and 21:03 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 30th 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 24844 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Sunday 1 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": "1985-12-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-01", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Sunday 1 December. Caturthī runs from 03:00 on Sun 1 Dec to 04:22 on Mon 2 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-12-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/ekadashi?on=1985-12-08", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24578, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-12-08T00:59:09+08:00", "utc": "1985-12-07T16:59:09Z", "ms": 502822749276.04584 }, "end": { "local": "1985-12-08T22:23:20+08:00", "utc": "1985-12-08T14:23:20Z", "ms": 502899800183.7538 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-08T00:59:09+08:00", "utc": "1985-12-07T16:59:09Z", "ms": 502822749276.04584 }, "end": { "local": "1985-12-08T22:23:20+08:00", "utc": "1985-12-08T14:23:20Z", "ms": 502899800183.7538 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-12-08", "window": { "start": { "local": "1985-12-08T07:48:47+08:00", "utc": "1985-12-07T23:48:47Z", "ms": 502847326922.62177 }, "end": { "local": "1985-12-08T07:48:47+08:00", "utc": "1985-12-07T23:48:47Z", "ms": 502847326922.62177 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-12-09", "window": { "start": { "local": "1985-12-09T07:49:31+08:00", "utc": "1985-12-08T23:49:31Z", "ms": 502933771053.2903 }, "end": { "local": "1985-12-09T07:49:31+08:00", "utc": "1985-12-08T23:49:31Z", "ms": 502933771053.2903 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:59 on Sun 8 Dec to 22:23 on Sun 8 Dec.", "fact": "1985-12-07T16:59:09Z → 1985-12-08T14:23:20Z" }, { "step": "kaala", "text": "Sunrise is at 07:49 on the 8th and 07:50 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 24578 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Chengdu, 1985: Sunday 8 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": "1985-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-08", "confidence": "determinate" } ], "quote": "In Chengdu, Utpannā Ekādaśī 1985 falls on Sunday 8 December. Ekādaśī runs from 00:59 on Sun 8 Dec to 22:23 on Sun 8 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-12-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/pradosha-vrata?on=1985-12-09", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1897, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-12-09T19:21:03+08:00", "utc": "1985-12-09T11:21:03Z", "ms": 502975263362.2394 }, "end": { "local": "1985-12-10T15:59:33+08:00", "utc": "1985-12-10T07:59:33Z", "ms": 503049573386.6025 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-09T19:21:03+08:00", "utc": "1985-12-09T11:21:03Z", "ms": 502975263362.2394 }, "end": { "local": "1985-12-10T15:59:33+08:00", "utc": "1985-12-10T07:59:33Z", "ms": 503049573386.6025 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-12-09", "window": { "start": { "local": "1985-12-09T18:02:17+08:00", "utc": "1985-12-09T10:02:17Z", "ms": 502970536668.0778 }, "end": { "local": "1985-12-09T19:52:40+08:00", "utc": "1985-12-09T11:52:40Z", "ms": 502977160366.9084 } }, "covered_min": 32, "window_min": 110, "qualifies": true }, { "local_date": "1985-12-10", "window": { "start": { "local": "1985-12-10T18:02:28+08:00", "utc": "1985-12-10T10:02:28Z", "ms": 503056947959.7973 }, "end": { "local": "1985-12-10T19:52:56+08:00", "utc": "1985-12-10T11:52:56Z", "ms": 503063575824.13245 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:21 on Mon 9 Dec to 16:00 on Tue 10 Dec.", "fact": "1985-12-09T11:21:03Z → 1985-12-10T07:59:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:02–19:53 on the 9th, 18:02–19:53 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 32 of 110 minutes on the 9th and 0 of 110 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 1897 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Chengdu, 1985: Monday 9 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": "1985-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-09", "confidence": "determinate" } ], "quote": "In Chengdu, Kṛṣṇa Pradoṣa Vrata 1985 falls on Monday 9 December. Trayodaśī runs from 19:21 on Mon 9 Dec to 16:00 on Tue 10 Dec and covers 32 of 110 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-12-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/shivaratri?on=1985-12-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30789, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1985-12-10T15:59:33+08:00", "utc": "1985-12-10T07:59:33Z", "ms": 503049573386.6025 }, "end": { "local": "1985-12-11T12:27:28+08:00", "utc": "1985-12-11T04:27:28Z", "ms": 503123247608.54395 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-10T15:59:33+08:00", "utc": "1985-12-10T07:59:33Z", "ms": 503049573386.6025 }, "end": { "local": "1985-12-11T12:27:28+08:00", "utc": "1985-12-11T04:27:28Z", "ms": 503123247608.54395 } }, "kaala": "nishita", "days": [ { "local_date": "1985-12-10", "window": { "start": { "local": "1985-12-11T00:32:42+08:00", "utc": "1985-12-10T16:32:42Z", "ms": 503080362451.0542 }, "end": { "local": "1985-12-11T01:20:42+08:00", "utc": "1985-12-10T17:20:42Z", "ms": 503083242451.0542 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-12-11", "window": { "start": { "local": "1985-12-12T00:33:10+08:00", "utc": "1985-12-11T16:33:10Z", "ms": 503166789770.06146 }, "end": { "local": "1985-12-12T01:21:10+08:00", "utc": "1985-12-11T17:21:10Z", "ms": 503169669770.06146 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:00 on Tue 10 Dec to 12:27 on Wed 11 Dec.", "fact": "1985-12-10T07:59:33Z → 1985-12-11T04:27:28Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:33–01:21 on the 10th, 00:33–01:21 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30789 s" }, { "step": "ruling", "text": "Śivarātri, Chengdu, 1985: Tuesday 10 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": "1985-12-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-10", "confidence": "determinate" } ], "quote": "In Chengdu, Śivarātri 1985 falls on Tuesday 10 December. Caturdaśī runs from 16:00 on Tue 10 Dec to 12:27 on Wed 11 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/chengdu/festivals/1985/shivaratri?on=1985-12-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-12-15", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31086, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-12-14T23:54:07+08:00", "utc": "1985-12-14T15:54:07Z", "ms": 503423646723.5353 }, "end": { "local": "1985-12-15T22:00:49+08:00", "utc": "1985-12-15T14:00:49Z", "ms": 503503249284.571 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-14T23:54:07+08:00", "utc": "1985-12-14T15:54:07Z", "ms": 503423646723.5353 }, "end": { "local": "1985-12-15T22:00:49+08:00", "utc": "1985-12-15T14:00:49Z", "ms": 503503249284.571 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-12-14", "window": { "start": { "local": "1985-12-14T12:34:14+08:00", "utc": "1985-12-14T04:34:14Z", "ms": 503382854432.7904 }, "end": { "local": "1985-12-14T13:22:14+08:00", "utc": "1985-12-14T05:22:14Z", "ms": 503385734432.7904 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-12-15", "window": { "start": { "local": "1985-12-15T12:34:44+08:00", "utc": "1985-12-15T04:34:44Z", "ms": 503469283546.85 }, "end": { "local": "1985-12-15T13:22:44+08:00", "utc": "1985-12-15T05:22:44Z", "ms": 503472163546.85 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:54 on Sat 14 Dec to 22:01 on Sun 15 Dec.", "fact": "1985-12-14T15:54:07Z → 1985-12-15T14:00:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 on the 14th, 12:35–13:23 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 31086 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Chengdu, 1985: Sunday 15 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": "1985-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-15", "confidence": "determinate" } ], "quote": "In Chengdu, Vināyaka Caturthī 1985 falls on Sunday 15 December. Caturthī runs from 23:54 on Sat 14 Dec to 22:01 on Sun 15 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/vinayaka-chaturthi?on=1985-12-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27104, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1985-12-15T22:00:49+08:00", "utc": "1985-12-15T14:00:49Z", "ms": 503503249284.571 }, "end": { "local": "1985-12-16T20:54:57+08:00", "utc": "1985-12-16T12:54:57Z", "ms": 503585697138.36444 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-15T22:00:49+08:00", "utc": "1985-12-15T14:00:49Z", "ms": 503503249284.571 }, "end": { "local": "1985-12-16T20:54:57+08:00", "utc": "1985-12-16T12:54:57Z", "ms": 503585697138.36444 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-12-15", "window": { "start": { "local": "1985-12-15T12:34:44+08:00", "utc": "1985-12-15T04:34:44Z", "ms": 503469283546.85 }, "end": { "local": "1985-12-15T13:22:44+08:00", "utc": "1985-12-15T05:22:44Z", "ms": 503472163546.85 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-12-16", "window": { "start": { "local": "1985-12-16T12:35:13+08:00", "utc": "1985-12-16T04:35:13Z", "ms": 503555712907.50037 }, "end": { "local": "1985-12-16T13:23:13+08:00", "utc": "1985-12-16T05:23:13Z", "ms": 503558592907.50037 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:01 on Sun 15 Dec to 20:55 on Mon 16 Dec.", "fact": "1985-12-15T14:00:49Z → 1985-12-16T12:54:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 15th, 12:35–13:23 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27104 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Chengdu, 1985: Monday 16 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": "1985-12-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-16", "confidence": "determinate" } ], "quote": "In Chengdu, Nāga Pañcamī (Mārgaśīrṣa) 1985 falls on Monday 16 December. Pañcamī runs from 22:01 on Sun 15 Dec to 20:55 on Mon 16 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26244, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1985-12-16T20:54:57+08:00", "utc": "1985-12-16T12:54:57Z", "ms": 503585697138.36444 }, "end": { "local": "1985-12-17T20:41:07+08:00", "utc": "1985-12-17T12:41:07Z", "ms": 503671266650.17395 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-16T20:54:57+08:00", "utc": "1985-12-16T12:54:57Z", "ms": 503585697138.36444 }, "end": { "local": "1985-12-17T20:41:07+08:00", "utc": "1985-12-17T12:41:07Z", "ms": 503671266650.17395 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-12-16", "window": { "start": { "local": "1985-12-16T12:35:13+08:00", "utc": "1985-12-16T04:35:13Z", "ms": 503555712907.50037 }, "end": { "local": "1985-12-16T13:23:13+08:00", "utc": "1985-12-16T05:23:13Z", "ms": 503558592907.50037 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-12-17", "window": { "start": { "local": "1985-12-17T12:35:42+08:00", "utc": "1985-12-17T04:35:42Z", "ms": 503642142478.902 }, "end": { "local": "1985-12-17T13:23:42+08:00", "utc": "1985-12-17T05:23:42Z", "ms": 503645022478.902 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:55 on Mon 16 Dec to 20:41 on Tue 17 Dec.", "fact": "1985-12-16T12:54:57Z → 1985-12-17T12:41:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 16th, 12:36–13:24 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 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: paraviddha → only-day · margin 26244 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Chengdu, 1985: Tuesday 17 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": "1985-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-17", "confidence": "determinate" } ], "quote": "In Chengdu, Campā Ṣaṣṭhī 1985 falls on Tuesday 17 December. Ṣaṣṭhī runs from 20:55 on Mon 16 Dec to 20:41 on Tue 17 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26244, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1985-12-16T20:54:57+08:00", "utc": "1985-12-16T12:54:57Z", "ms": 503585697138.36444 }, "end": { "local": "1985-12-17T20:41:07+08:00", "utc": "1985-12-17T12:41:07Z", "ms": 503671266650.17395 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-16T20:54:57+08:00", "utc": "1985-12-16T12:54:57Z", "ms": 503585697138.36444 }, "end": { "local": "1985-12-17T20:41:07+08:00", "utc": "1985-12-17T12:41:07Z", "ms": 503671266650.17395 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-12-16", "window": { "start": { "local": "1985-12-16T12:35:13+08:00", "utc": "1985-12-16T04:35:13Z", "ms": 503555712907.50037 }, "end": { "local": "1985-12-16T13:23:13+08:00", "utc": "1985-12-16T05:23:13Z", "ms": 503558592907.50037 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-12-17", "window": { "start": { "local": "1985-12-17T12:35:42+08:00", "utc": "1985-12-17T04:35:42Z", "ms": 503642142478.902 }, "end": { "local": "1985-12-17T13:23:42+08:00", "utc": "1985-12-17T05:23:42Z", "ms": 503645022478.902 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:55 on Mon 16 Dec to 20:41 on Tue 17 Dec.", "fact": "1985-12-16T12:54:57Z → 1985-12-17T12:41:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:35–13:23 on the 16th, 12:36–13:24 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 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 26244 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Chengdu, 1985: Tuesday 17 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": "1985-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-17", "confidence": "determinate" } ], "quote": "In Chengdu, Skanda Ṣaṣṭhī 1985 falls on Tuesday 17 December. Ṣaṣṭhī runs from 20:55 on Mon 16 Dec to 20:41 on Tue 17 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26244, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1985-12-17T20:41:07+08:00", "utc": "1985-12-17T12:41:07Z", "ms": 503671266650.17395 }, "end": { "local": "1985-12-18T21:19:51+08:00", "utc": "1985-12-18T13:19:51Z", "ms": 503759991095.0489 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-17T20:41:07+08:00", "utc": "1985-12-17T12:41:07Z", "ms": 503671266650.17395 }, "end": { "local": "1985-12-18T21:19:51+08:00", "utc": "1985-12-18T13:19:51Z", "ms": 503759991095.0489 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-12-17", "window": { "start": { "local": "1985-12-17T12:35:42+08:00", "utc": "1985-12-17T04:35:42Z", "ms": 503642142478.902 }, "end": { "local": "1985-12-17T13:23:42+08:00", "utc": "1985-12-17T05:23:42Z", "ms": 503645022478.902 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1985-12-18", "window": { "start": { "local": "1985-12-18T12:36:12+08:00", "utc": "1985-12-18T04:36:12Z", "ms": 503728572226.04407 }, "end": { "local": "1985-12-18T13:24:12+08:00", "utc": "1985-12-18T05:24:12Z", "ms": 503731452226.04407 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 20:41 on Tue 17 Dec to 21:20 on Wed 18 Dec.", "fact": "1985-12-17T12:41:07Z → 1985-12-18T13:19:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 17th, 12:36–13:24 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 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26244 s" }, { "step": "ruling", "text": "Mitra Saptamī, Chengdu, 1985: Wednesday 18 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": "1985-12-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-18", "confidence": "determinate" } ], "quote": "In Chengdu, Mitra Saptamī 1985 falls on Wednesday 18 December. Saptamī runs from 20:41 on Tue 17 Dec to 21:20 on Wed 18 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/ekadashi?on=1985-12-22", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6336, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1985-12-22T03:26:42+08:00", "utc": "1985-12-21T19:26:42Z", "ms": 504041201986.0346 }, "end": { "local": "1985-12-23T06:12:30+08:00", "utc": "1985-12-22T22:12:30Z", "ms": 504137549718.5947 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-22T03:26:42+08:00", "utc": "1985-12-21T19:26:42Z", "ms": 504041201986.0346 }, "end": { "local": "1985-12-23T06:12:30+08:00", "utc": "1985-12-22T22:12:30Z", "ms": 504137549718.5947 } }, "kaala": "sunrise", "days": [ { "local_date": "1985-12-22", "window": { "start": { "local": "1985-12-22T07:57:37+08:00", "utc": "1985-12-21T23:57:37Z", "ms": 504057456692.44855 }, "end": { "local": "1985-12-22T07:57:37+08:00", "utc": "1985-12-21T23:57:37Z", "ms": 504057456692.44855 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-12-23", "window": { "start": { "local": "1985-12-23T07:58:06+08:00", "utc": "1985-12-22T23:58:06Z", "ms": 504143885740.3683 }, "end": { "local": "1985-12-23T07:58:06+08:00", "utc": "1985-12-22T23:58:06Z", "ms": 504143885740.3683 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:27 on Sun 22 Dec to 06:12 on Mon 23 Dec.", "fact": "1985-12-21T19:26:42Z → 1985-12-22T22:12:30Z" }, { "step": "kaala", "text": "Sunrise is at 07:58 on the 22nd and 07:58 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 6336 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Chengdu, 1985: Sunday 22 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": "1985-12-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-22", "confidence": "determinate" } ], "quote": "In Chengdu, Mokṣadā Ekādaśī 1985 falls on Sunday 22 December. Ekādaśī runs from 03:27 on Sun 22 Dec to 06:12 on Mon 23 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/ekadashi?on=1985-12-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13321, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1985-12-23T06:12:30+08:00", "utc": "1985-12-22T22:12:30Z", "ms": 504137549718.5947 }, "end": { "local": "1985-12-24T08:57:11+08:00", "utc": "1985-12-24T00:57:11Z", "ms": 504233831118.4566 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-23T06:12:30+08:00", "utc": "1985-12-22T22:12:30Z", "ms": 504137549718.5947 }, "end": { "local": "1985-12-24T08:57:11+08:00", "utc": "1985-12-24T00:57:11Z", "ms": 504233831118.4566 } }, "kaala": "madhyahna", "days": [ { "local_date": "1985-12-23", "window": { "start": { "local": "1985-12-23T12:38:42+08:00", "utc": "1985-12-23T04:38:42Z", "ms": 504160722413.5504 }, "end": { "local": "1985-12-23T13:26:42+08:00", "utc": "1985-12-23T05:26:42Z", "ms": 504163602413.5504 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1985-12-24", "window": { "start": { "local": "1985-12-24T12:39:13+08:00", "utc": "1985-12-24T04:39:13Z", "ms": 504247152510.6002 }, "end": { "local": "1985-12-24T13:27:13+08:00", "utc": "1985-12-24T05:27:13Z", "ms": 504250032510.6002 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 06:12 on Mon 23 Dec to 08:57 on Tue 24 Dec.", "fact": "1985-12-22T22:12:30Z → 1985-12-24T00:57:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 23rd, 12:39–13:27 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13321 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Chengdu, 1985: Monday 23 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": "1985-12-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-23", "confidence": "determinate" } ], "quote": "In Chengdu, Akhaṇḍa Dvādaśī 1985 falls on Monday 23 December. Dvādaśī runs from 06:12 on Mon 23 Dec to 08:57 on Tue 24 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/pradosha-vrata?on=1985-12-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23928, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1985-12-24T08:57:11+08:00", "utc": "1985-12-24T00:57:11Z", "ms": 504233831118.4566 }, "end": { "local": "1985-12-25T11:29:37+08:00", "utc": "1985-12-25T03:29:37Z", "ms": 504329377434.2719 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-24T08:57:11+08:00", "utc": "1985-12-24T00:57:11Z", "ms": 504233831118.4566 }, "end": { "local": "1985-12-25T11:29:37+08:00", "utc": "1985-12-25T03:29:37Z", "ms": 504329377434.2719 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-12-24", "window": { "start": { "local": "1985-12-24T18:07:52+08:00", "utc": "1985-12-24T10:07:52Z", "ms": 504266871602.301 }, "end": { "local": "1985-12-24T19:58:41+08:00", "utc": "1985-12-24T11:58:41Z", "ms": 504273520681.8232 } }, "covered_min": 111, "window_min": 111, "qualifies": true }, { "local_date": "1985-12-25", "window": { "start": { "local": "1985-12-25T18:08:25+08:00", "utc": "1985-12-25T10:08:25Z", "ms": 504353305406.1418 }, "end": { "local": "1985-12-25T19:59:13+08:00", "utc": "1985-12-25T11:59:13Z", "ms": 504359953292.27515 } }, "covered_min": 0, "window_min": 111, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:57 on Tue 24 Dec to 11:30 on Wed 25 Dec.", "fact": "1985-12-24T00:57:11Z → 1985-12-25T03:29:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:08–19:59 on the 24th, 18:08–19:59 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 111 of 111 minutes on the 24th and 0 of 111 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23928 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Chengdu, 1985: Tuesday 24 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": "1985-12-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-24", "confidence": "determinate" } ], "quote": "In Chengdu, Śukla Pradoṣa Vrata 1985 falls on Tuesday 24 December. Trayodaśī runs from 08:57 on Tue 24 Dec to 11:30 on Wed 25 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/pradosha-vrata?on=1985-12-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/chengdu/festivals/1985/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9558, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1985-12-26T13:42:06+08:00", "utc": "1985-12-26T05:42:06Z", "ms": 504423725745.74884 }, "end": { "local": "1985-12-27T15:30:18+08:00", "utc": "1985-12-27T07:30:18Z", "ms": 504516618302.7925 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-26T13:42:06+08:00", "utc": "1985-12-26T05:42:06Z", "ms": 504423725745.74884 }, "end": { "local": "1985-12-27T15:30:18+08:00", "utc": "1985-12-27T07:30:18Z", "ms": 504516618302.7925 } }, "kaala": "pradosha", "days": [ { "local_date": "1985-12-26", "window": { "start": { "local": "1985-12-26T18:09:00+08:00", "utc": "1985-12-26T10:09:00Z", "ms": 504439740463.36066 }, "end": { "local": "1985-12-26T19:59:47+08:00", "utc": "1985-12-26T11:59:47Z", "ms": 504446386795.32697 } }, "covered_min": 111, "window_min": 111, "qualifies": true }, { "local_date": "1985-12-27", "window": { "start": { "local": "1985-12-27T18:09:37+08:00", "utc": "1985-12-27T10:09:37Z", "ms": 504526176738.44476 }, "end": { "local": "1985-12-27T20:00:21+08:00", "utc": "1985-12-27T12:00:21Z", "ms": 504532821156.93225 } }, "covered_min": 0, "window_min": 111, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:42 on Thu 26 Dec to 15:30 on Fri 27 Dec.", "fact": "1985-12-26T05:42:06Z → 1985-12-27T07:30:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:09–20:00 on the 26th, 18:10–20:00 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 111 of 111 minutes on the 26th and 0 of 111 on the 27th.", "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 9558 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Chengdu, 1985: Thursday 26 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": "1985-12-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-26", "confidence": "determinate" } ], "quote": "In Chengdu, Dattātreyotpatti (Datta Jayanti) 1985 falls on Thursday 26 December. Pūrṇimā runs from 13:42 on Thu 26 Dec to 15:30 on Fri 27 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/chengdu/festivals/1985/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": "/chengdu/festivals/1985/sankashta-chaturthi?on=1985-12-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1815286", "year": 1985, "local_date": "1985-12-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9445, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1985-12-30T18:21:17+08:00", "utc": "1985-12-30T10:21:17Z", "ms": 504786076957.5911 }, "end": { "local": "1985-12-31T18:29:12+08:00", "utc": "1985-12-31T10:29:12Z", "ms": 504872951570.763 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1985-12-30T18:21:17+08:00", "utc": "1985-12-30T10:21:17Z", "ms": 504786076957.5911 }, "end": { "local": "1985-12-31T18:29:12+08:00", "utc": "1985-12-31T10:29:12Z", "ms": 504872951570.763 } }, "kaala": "moonrise", "days": [ { "local_date": "1985-12-30", "window": { "start": { "local": "1985-12-30T20:58:42+08:00", "utc": "1985-12-30T12:58:42Z", "ms": 504795521763.7405 }, "end": { "local": "1985-12-30T20:58:42+08:00", "utc": "1985-12-30T12:58:42Z", "ms": 504795521763.7405 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1985-12-31", "window": { "start": { "local": "1985-12-31T22:00:39+08:00", "utc": "1985-12-31T14:00:39Z", "ms": 504885638513.0446 }, "end": { "local": "1985-12-31T22:00:39+08:00", "utc": "1985-12-31T14:00:39Z", "ms": 504885638513.0446 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:21 on Mon 30 Dec to 18:29 on Tue 31 Dec.", "fact": "1985-12-30T10:21:17Z → 1985-12-31T10:29:12Z" }, { "step": "kaala", "text": "Moonrise is at 20:59 on the 30th and 22:01 on the 31st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 30th and is not on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9445 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Chengdu, 1985: Monday 30 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": "1985-12-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1985-12-30", "confidence": "determinate" } ], "quote": "In Chengdu, Saṅkaṣṭa Caturthī 1985 falls on Monday 30 December. Caturthī runs from 18:21 on Mon 30 Dec to 18:29 on Tue 31 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/chengdu/festivals/1985/sankashta-chaturthi?on=1985-12-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }