{ "id": "/qingyang/festivals/1912", "place": { "id": "12359313", "slug": "qingyang", "name": "Qingyang", "region": "Gansu, China", "country": "CN", "lat": 35.70976, "lon": 107.64455, "elevation_m": 1427, "tz": "Asia/Shanghai" }, "year": 1912, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/qingyang/festivals/1912/ekadashi?on=1912-01-01", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11411, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1911-12-31T13:12:02+08:00", "utc": "1911-12-31T05:12:02Z", "ms": -1830451677942.0466 }, "end": { "local": "1912-01-01T11:09:44+08:00", "utc": "1912-01-01T03:09:44Z", "ms": -1830372615977.8552 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1911-12-31T13:12:02+08:00", "utc": "1911-12-31T05:12:02Z", "ms": -1830451677942.0466 }, "end": { "local": "1912-01-01T11:09:44+08:00", "utc": "1912-01-01T03:09:44Z", "ms": -1830372615977.8552 } }, "kaala": "sunrise", "days": [ { "local_date": "1911-12-31", "window": { "start": { "local": "1911-12-31T07:59:19+08:00", "utc": "1911-12-30T23:59:19Z", "ms": -1830470441450.4458 }, "end": { "local": "1911-12-31T07:59:19+08:00", "utc": "1911-12-30T23:59:19Z", "ms": -1830470441450.4458 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-01-01", "window": { "start": { "local": "1912-01-01T07:59:33+08:00", "utc": "1911-12-31T23:59:33Z", "ms": -1830384026660.2688 }, "end": { "local": "1912-01-01T07:59:33+08:00", "utc": "1911-12-31T23:59:33Z", "ms": -1830384026660.2688 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:12 on Sun 31 Dec to 11:10 on Mon 1 Jan.", "fact": "1911-12-31T05:12:02Z → 1912-01-01T03:09:44Z" }, { "step": "kaala", "text": "Sunrise is at 07:59 on the 31st and 08:00 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 31st and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11411 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Qingyang, 1912: Monday 1 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-01-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-01", "confidence": "determinate" } ], "quote": "In Qingyang, Putradā Ekādaśī 1912 falls on Monday 1 January. Ekādaśī runs from 13:12 on Sun 31 Dec to 11:10 on Mon 1 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-01-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-01-02", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33652, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-01-02T08:25:25+08:00", "utc": "1912-01-02T00:25:25Z", "ms": -1830296074535.683 }, "end": { "local": "1912-01-03T05:07:07+08:00", "utc": "1912-01-02T21:07:07Z", "ms": -1830221573295.6055 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-01-02T08:25:25+08:00", "utc": "1912-01-02T00:25:25Z", "ms": -1830296074535.683 }, "end": { "local": "1912-01-03T05:07:07+08:00", "utc": "1912-01-02T21:07:07Z", "ms": -1830221573295.6055 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-01-02", "window": { "start": { "local": "1912-01-02T17:46:18+08:00", "utc": "1912-01-02T09:46:18Z", "ms": -1830262422081.772 }, "end": { "local": "1912-01-02T19:40:07+08:00", "utc": "1912-01-02T11:40:07Z", "ms": -1830255592842.2034 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "1912-01-03", "window": { "start": { "local": "1912-01-03T17:47:04+08:00", "utc": "1912-01-03T09:47:04Z", "ms": -1830175975929.4988 }, "end": { "local": "1912-01-03T19:40:48+08:00", "utc": "1912-01-03T11:40:48Z", "ms": -1830169151635.0195 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:25 on Tue 2 Jan to 05:07 on Wed 3 Jan.", "fact": "1912-01-02T00:25:25Z → 1912-01-02T21:07:07Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:46–19:40 on the 2nd, 17:47–19:41 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 114 of 114 minutes on the 2nd and 0 of 114 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 33652 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Tuesday 2 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-01-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-02", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Tuesday 2 January. Trayodaśī runs from 08:25 on Tue 2 Jan to 05:07 on Wed 3 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-01-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-01-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37570, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-01-07T10:24:03+08:00", "utc": "1912-01-07T02:24:03Z", "ms": -1829856957215.0261 }, "end": { "local": "1912-01-08T07:33:53+08:00", "utc": "1912-01-07T23:33:53Z", "ms": -1829780766806.1692 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-07T10:24:03+08:00", "utc": "1912-01-07T02:24:03Z", "ms": -1829856957215.0261 }, "end": { "local": "1912-01-08T07:33:53+08:00", "utc": "1912-01-07T23:33:53Z", "ms": -1829780766806.1692 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-01-06", "window": { "start": { "local": "1912-01-06T19:51:59+08:00", "utc": "1912-01-06T11:51:59Z", "ms": -1829909280875.4407 }, "end": { "local": "1912-01-06T19:51:59+08:00", "utc": "1912-01-06T11:51:59Z", "ms": -1829909280875.4407 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-01-07", "window": { "start": { "local": "1912-01-07T21:07:43+08:00", "utc": "1912-01-07T13:07:43Z", "ms": -1829818337088.8433 }, "end": { "local": "1912-01-07T21:07:43+08:00", "utc": "1912-01-07T13:07:43Z", "ms": -1829818337088.8433 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:24 on Sun 7 Jan to 07:34 on Mon 8 Jan.", "fact": "1912-01-07T02:24:03Z → 1912-01-07T23:33:53Z" }, { "step": "kaala", "text": "Moonrise is at 19:52 on the 6th and 21:08 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37570 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Sunday 7 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": "1912-01-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-07", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Sunday 7 January. Caturthī runs from 10:24 on Sun 7 Jan to 07:34 on Mon 8 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-01-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22287, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 }, "end": { "local": "1912-02-13T00:44:01+08:00", "utc": "1912-02-12T16:44:01Z", "ms": -1826694959240.7815 } }, "span": { "of": "transit", "start": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 }, "end": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 } }, "kaala": "sunset-day", "days": [ { "local_date": "1912-01-14", "window": { "start": { "local": "1912-01-13T17:55:45+08:00", "utc": "1912-01-13T09:55:45Z", "ms": -1829311454880.361 }, "end": { "local": "1912-01-14T17:56:42+08:00", "utc": "1912-01-14T09:56:42Z", "ms": -1829224997829.7495 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1912-01-15", "window": { "start": { "local": "1912-01-14T17:56:42+08:00", "utc": "1912-01-14T09:56:42Z", "ms": -1829224997829.7495 }, "end": { "local": "1912-01-15T17:57:40+08:00", "utc": "1912-01-15T09:57:40Z", "ms": -1829138540077.7773 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1912-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 11:45 on Sun 14 Jan.", "fact": "1912-01-14T03:45:15Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:57, and the day of the 15th ends at 17:58.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 22287 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Sunday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Qingyang, 1912: Saturday 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": "1912-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1912-01-13", "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": "1912-01-13", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Qingyang, Bhogi 1912 falls on Saturday 13 January. It is kept the day before Pongal, which falls on Sunday 14 January. The Sun enters Makara at 11:45 on Sun 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/qingyang/festivals/1912/bhogi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22287, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 }, "end": { "local": "1912-02-13T00:44:01+08:00", "utc": "1912-02-12T16:44:01Z", "ms": -1826694959240.7815 } }, "span": { "of": "transit", "start": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 }, "end": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 } }, "kaala": "sunset-day", "days": [ { "local_date": "1912-01-14", "window": { "start": { "local": "1912-01-13T17:55:45+08:00", "utc": "1912-01-13T09:55:45Z", "ms": -1829311454880.361 }, "end": { "local": "1912-01-14T17:56:42+08:00", "utc": "1912-01-14T09:56:42Z", "ms": -1829224997829.7495 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1912-01-15", "window": { "start": { "local": "1912-01-14T17:56:42+08:00", "utc": "1912-01-14T09:56:42Z", "ms": -1829224997829.7495 }, "end": { "local": "1912-01-15T17:57:40+08:00", "utc": "1912-01-15T09:57:40Z", "ms": -1829138540077.7773 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 11:45 on Sun 14 Jan.", "fact": "1912-01-14T03:45:15Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:57, and the day of the 15th ends at 17:58.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 22287 s" }, { "step": "ruling", "text": "Pongal, Qingyang, 1912: Sunday 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": "1912-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1912-01-14", "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": "1912-01-14", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Qingyang, Pongal 1912 falls on Sunday 14 January. The Sun enters Makara at 11:45 on Sun 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/qingyang/festivals/1912/pongal", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 42315, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 }, "end": { "local": "1912-02-13T00:44:01+08:00", "utc": "1912-02-12T16:44:01Z", "ms": -1826694959240.7815 } }, "span": { "of": "transit", "start": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 }, "end": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 } }, "kaala": "civil-day", "days": [ { "local_date": "1912-01-13", "window": { "start": { "local": "1912-01-13T00:00:00+08:00", "utc": "1912-01-12T16:00:00Z", "ms": -1829376000000 }, "end": { "local": "1912-01-14T00:00:00+08:00", "utc": "1912-01-13T16:00:00Z", "ms": -1829289600000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "1912-01-14", "window": { "start": { "local": "1912-01-14T00:00:00+08:00", "utc": "1912-01-13T16:00:00Z", "ms": -1829289600000 }, "end": { "local": "1912-01-15T00:00:00+08:00", "utc": "1912-01-14T16:00:00Z", "ms": -1829203200000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 11:45 on Sun 14 Jan.", "fact": "1912-01-14T03:45:15Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Qingyang.", "fact": "civil-day: midnight-to-midnight · Asia/Shanghai" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 14th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 42315 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Qingyang, 1912: Sunday 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": "1912-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1912-01-14", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1912-01-14", "statement": "Past sunset, the next day (the Tamil rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } } ], "quote": "In Qingyang, Makara Saṅkrānti 1912 falls on Sunday 14 January. The Sun enters Makara at 11:45 on Sun 14 Jan, and the rule counts the day from midnight.", "cite": "https://ahargana.org/qingyang/festivals/1912/makara-sankranti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22287, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 }, "end": { "local": "1912-02-13T00:44:01+08:00", "utc": "1912-02-12T16:44:01Z", "ms": -1826694959240.7815 } }, "span": { "of": "transit", "start": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 }, "end": { "local": "1912-01-14T11:45:15+08:00", "utc": "1912-01-14T03:45:15Z", "ms": -1829247284669.4878 } }, "kaala": "sunset-day", "days": [ { "local_date": "1912-01-14", "window": { "start": { "local": "1912-01-13T17:55:45+08:00", "utc": "1912-01-13T09:55:45Z", "ms": -1829311454880.361 }, "end": { "local": "1912-01-14T17:56:42+08:00", "utc": "1912-01-14T09:56:42Z", "ms": -1829224997829.7495 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "1912-01-15", "window": { "start": { "local": "1912-01-14T17:56:42+08:00", "utc": "1912-01-14T09:56:42Z", "ms": -1829224997829.7495 }, "end": { "local": "1912-01-15T17:57:40+08:00", "utc": "1912-01-15T09:57:40Z", "ms": -1829138540077.7773 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1912-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 11:45 on Sun 14 Jan.", "fact": "1912-01-14T03:45:15Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:57, and the day of the 15th ends at 17:58.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 22287 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Sunday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Qingyang, 1912: Monday 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": "1912-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1912-01-15", "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": "1912-01-15", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Qingyang, Mattu Pongal 1912 falls on Monday 15 January. It is kept the day after Pongal, which falls on Sunday 14 January. The Sun enters Makara at 11:45 on Sun 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th.", "cite": "https://ahargana.org/qingyang/festivals/1912/mattu-pongal", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-01-15", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3758, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-01-14T06:51:17+08:00", "utc": "1912-01-13T22:51:17Z", "ms": -1829264923128.9617 }, "end": { "local": "1912-01-15T09:02:16+08:00", "utc": "1912-01-15T01:02:16Z", "ms": -1829170663701.0466 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-14T06:51:17+08:00", "utc": "1912-01-13T22:51:17Z", "ms": -1829264923128.9617 }, "end": { "local": "1912-01-15T09:02:16+08:00", "utc": "1912-01-15T01:02:16Z", "ms": -1829170663701.0466 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-01-14", "window": { "start": { "local": "1912-01-14T07:59:50+08:00", "utc": "1912-01-13T23:59:50Z", "ms": -1829260809630.9136 }, "end": { "local": "1912-01-14T07:59:50+08:00", "utc": "1912-01-13T23:59:50Z", "ms": -1829260809630.9136 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-01-15", "window": { "start": { "local": "1912-01-15T07:59:38+08:00", "utc": "1912-01-14T23:59:38Z", "ms": -1829174421907.8713 }, "end": { "local": "1912-01-15T07:59:38+08:00", "utc": "1912-01-14T23:59:38Z", "ms": -1829174421907.8713 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:51 on Sun 14 Jan to 09:02 on Mon 15 Jan.", "fact": "1912-01-13T22:51:17Z → 1912-01-15T01:02:16Z" }, { "step": "kaala", "text": "Sunrise is at 08:00 on the 14th and 08:00 on the 15th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 14th and is on the 15th.", "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 3758 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Qingyang, 1912: Monday 15 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": "1912-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-15", "confidence": "determinate" } ], "quote": "In Qingyang, Ṣaṭtilā Ekādaśī 1912 falls on Monday 15 January. Ekādaśī runs from 06:51 on Sun 14 Jan to 09:02 on Mon 15 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-01-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-01-16", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14120, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-01-16T11:29:37+08:00", "utc": "1912-01-16T03:29:37Z", "ms": -1829075422606.3513 }, "end": { "local": "1912-01-17T14:04:17+08:00", "utc": "1912-01-17T06:04:17Z", "ms": -1828979743054.5989 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-16T11:29:37+08:00", "utc": "1912-01-16T03:29:37Z", "ms": -1829075422606.3513 }, "end": { "local": "1912-01-17T14:04:17+08:00", "utc": "1912-01-17T06:04:17Z", "ms": -1828979743054.5989 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-01-16", "window": { "start": { "local": "1912-01-16T17:58:38+08:00", "utc": "1912-01-16T09:58:38Z", "ms": -1829052081675.674 }, "end": { "local": "1912-01-16T19:50:42+08:00", "utc": "1912-01-16T11:50:42Z", "ms": -1829045357753.1323 } }, "covered_min": 112, "window_min": 112, "qualifies": true }, { "local_date": "1912-01-17", "window": { "start": { "local": "1912-01-17T17:59:37+08:00", "utc": "1912-01-17T09:59:37Z", "ms": -1828965622674.4827 }, "end": { "local": "1912-01-17T19:51:31+08:00", "utc": "1912-01-17T11:51:31Z", "ms": -1828958909026.4307 } }, "covered_min": 0, "window_min": 112, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:30 on Tue 16 Jan to 14:04 on Wed 17 Jan.", "fact": "1912-01-16T03:29:37Z → 1912-01-17T06:04:17Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:59–19:51 on the 16th, 18:00–19:52 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 112 of 112 minutes on the 16th and 0 of 112 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 14120 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Tuesday 16 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": "1912-01-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-16", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Tuesday 16 January. Trayodaśī runs from 11:30 on Tue 16 Jan to 14:04 on Wed 17 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-01-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-01-17", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28578, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-01-17T14:04:17+08:00", "utc": "1912-01-17T06:04:17Z", "ms": -1828979743054.5989 }, "end": { "local": "1912-01-18T16:39:15+08:00", "utc": "1912-01-18T08:39:15Z", "ms": -1828884044563.3596 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-17T14:04:17+08:00", "utc": "1912-01-17T06:04:17Z", "ms": -1828979743054.5989 }, "end": { "local": "1912-01-18T16:39:15+08:00", "utc": "1912-01-18T08:39:15Z", "ms": -1828884044563.3596 } }, "kaala": "nishita", "days": [ { "local_date": "1912-01-17", "window": { "start": { "local": "1912-01-18T00:35:14+08:00", "utc": "1912-01-17T16:35:14Z", "ms": -1828941886494.288 }, "end": { "local": "1912-01-18T01:23:14+08:00", "utc": "1912-01-17T17:23:14Z", "ms": -1828939006494.288 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-01-18", "window": { "start": { "local": "1912-01-19T00:35:33+08:00", "utc": "1912-01-18T16:35:33Z", "ms": -1828855466703.373 }, "end": { "local": "1912-01-19T01:23:33+08:00", "utc": "1912-01-18T17:23:33Z", "ms": -1828852586703.373 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:04 on Wed 17 Jan to 16:39 on Thu 18 Jan.", "fact": "1912-01-17T06:04:17Z → 1912-01-18T08:39:15Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:35–01:23 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 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28578 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Wednesday 17 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": "1912-01-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-17", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Wednesday 17 January. Caturdaśī runs from 14:04 on Wed 17 Jan to 16:39 on Thu 18 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-01-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21909, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-01-17T14:04:17+08:00", "utc": "1912-01-17T06:04:17Z", "ms": -1828979743054.5989 }, "end": { "local": "1912-01-18T16:39:15+08:00", "utc": "1912-01-18T08:39:15Z", "ms": -1828884044563.3596 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-17T14:04:17+08:00", "utc": "1912-01-17T06:04:17Z", "ms": -1828979743054.5989 }, "end": { "local": "1912-01-18T16:39:15+08:00", "utc": "1912-01-18T08:39:15Z", "ms": -1828884044563.3596 } }, "kaala": "arunodaya", "days": [ { "local_date": "1912-01-17", "window": { "start": { "local": "1912-01-17T06:07:04+08:00", "utc": "1912-01-16T22:07:04Z", "ms": -1829008376179.1519 }, "end": { "local": "1912-01-17T07:59:08+08:00", "utc": "1912-01-16T23:59:08Z", "ms": -1829001652256.61 } }, "covered_min": 0, "window_min": 112, "qualifies": false }, { "local_date": "1912-01-18", "window": { "start": { "local": "1912-01-18T06:06:56+08:00", "utc": "1912-01-17T22:06:56Z", "ms": -1828921983962.1453 }, "end": { "local": "1912-01-18T07:58:50+08:00", "utc": "1912-01-17T23:58:50Z", "ms": -1828915270314.0933 } }, "covered_min": 112, "window_min": 112, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:04 on Wed 17 Jan to 16:39 on Thu 18 Jan.", "fact": "1912-01-17T06:04:17Z → 1912-01-18T08:39:15Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 06:07–07:59 on the 17th, 06:07–07:59 on the 18th.", "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 112 minutes on the 17th and 112 of 112 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21909 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Qingyang, 1912: Thursday 18 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-01-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-18", "confidence": "determinate" } ], "quote": "In Qingyang, Yama Tarpaṇa 1912 falls on Thursday 18 January. Caturdaśī runs from 14:04 on Wed 17 Jan to 16:39 on Thu 18 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/qingyang/festivals/1912/yama-tarpana", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33798, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-01-23T01:38:09+08:00", "utc": "1912-01-22T17:38:09Z", "ms": -1828506111489.1428 }, "end": { "local": "1912-01-24T03:14:14+08:00", "utc": "1912-01-23T19:14:14Z", "ms": -1828413945885.7844 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-23T01:38:09+08:00", "utc": "1912-01-22T17:38:09Z", "ms": -1828506111489.1428 }, "end": { "local": "1912-01-24T03:14:14+08:00", "utc": "1912-01-23T19:14:14Z", "ms": -1828413945885.7844 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-01-23", "window": { "start": { "local": "1912-01-23T12:37:16+08:00", "utc": "1912-01-23T04:37:16Z", "ms": -1828466563949.246 }, "end": { "local": "1912-01-23T13:25:16+08:00", "utc": "1912-01-23T05:25:16Z", "ms": -1828463683949.246 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-01-24", "window": { "start": { "local": "1912-01-24T12:37:32+08:00", "utc": "1912-01-24T04:37:32Z", "ms": -1828380147705.6467 }, "end": { "local": "1912-01-24T13:25:32+08:00", "utc": "1912-01-24T05:25:32Z", "ms": -1828377267705.6467 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:38 on Tue 23 Jan to 03:14 on Wed 24 Jan.", "fact": "1912-01-22T17:38:09Z → 1912-01-23T19:14:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 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 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33798 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Qingyang, 1912: Tuesday 23 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-23", "confidence": "determinate" } ], "quote": "In Qingyang, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1912 falls on Tuesday 23 January. Caturthī runs from 01:38 on Tue 23 Jan to 03:14 on Wed 24 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/ganesha-jayanti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20551, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-01-23T01:38:09+08:00", "utc": "1912-01-22T17:38:09Z", "ms": -1828506111489.1428 }, "end": { "local": "1912-01-24T03:14:14+08:00", "utc": "1912-01-23T19:14:14Z", "ms": -1828413945885.7844 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-23T01:38:09+08:00", "utc": "1912-01-22T17:38:09Z", "ms": -1828506111489.1428 }, "end": { "local": "1912-01-24T03:14:14+08:00", "utc": "1912-01-23T19:14:14Z", "ms": -1828413945885.7844 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-01-22", "window": { "start": { "local": "1912-01-22T18:04:40+08:00", "utc": "1912-01-22T10:04:40Z", "ms": -1828533320431.837 }, "end": { "local": "1912-01-22T19:55:37+08:00", "utc": "1912-01-22T11:55:37Z", "ms": -1828526662910.8523 } }, "covered_min": 0, "window_min": 111, "qualifies": false }, { "local_date": "1912-01-23", "window": { "start": { "local": "1912-01-23T18:05:41+08:00", "utc": "1912-01-23T10:05:41Z", "ms": -1828446858874.0408 }, "end": { "local": "1912-01-23T19:56:27+08:00", "utc": "1912-01-23T11:56:27Z", "ms": -1828440213471.8342 } }, "covered_min": 111, "window_min": 111, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:38 on Tue 23 Jan to 03:14 on Wed 24 Jan.", "fact": "1912-01-22T17:38:09Z → 1912-01-23T19:14:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:05–19:56 on the 22nd, 18:06–19:56 on the 23rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 0 of 111 minutes on the 22nd and 111 of 111 on the 23rd.", "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 20551 s" }, { "step": "ruling", "text": "Tila Caturthī, Qingyang, 1912: Tuesday 23 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": "1912-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-23", "confidence": "determinate" } ], "quote": "In Qingyang, Tila Caturthī 1912 falls on Tuesday 23 January. Caturthī runs from 01:38 on Tue 23 Jan to 03:14 on Wed 24 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/tila-chaturthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29571, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1912-01-24T03:14:14+08:00", "utc": "1912-01-23T19:14:14Z", "ms": -1828413945885.7844 }, "end": { "local": "1912-01-25T04:24:57+08:00", "utc": "1912-01-24T20:24:57Z", "ms": -1828323303490.1433 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-24T03:14:14+08:00", "utc": "1912-01-23T19:14:14Z", "ms": -1828413945885.7844 }, "end": { "local": "1912-01-25T04:24:57+08:00", "utc": "1912-01-24T20:24:57Z", "ms": -1828323303490.1433 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-01-24", "window": { "start": { "local": "1912-01-24T12:37:32+08:00", "utc": "1912-01-24T04:37:32Z", "ms": -1828380147705.6467 }, "end": { "local": "1912-01-24T13:25:32+08:00", "utc": "1912-01-24T05:25:32Z", "ms": -1828377267705.6467 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-01-25", "window": { "start": { "local": "1912-01-25T12:37:48+08:00", "utc": "1912-01-25T04:37:48Z", "ms": -1828293732265.1338 }, "end": { "local": "1912-01-25T13:25:48+08:00", "utc": "1912-01-25T05:25:48Z", "ms": -1828290852265.1338 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:14 on Wed 24 Jan to 04:25 on Thu 25 Jan.", "fact": "1912-01-23T19:14:14Z → 1912-01-24T20:24:57Z" }, { "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 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 29571 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Qingyang, 1912: Wednesday 24 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-24", "confidence": "determinate" } ], "quote": "In Qingyang, Śrī Pañcamī 1912 falls on Wednesday 24 January. Pañcamī runs from 03:14 on Wed 24 Jan to 04:25 on Thu 25 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/shri-panchami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29571, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1912-01-24T03:14:14+08:00", "utc": "1912-01-23T19:14:14Z", "ms": -1828413945885.7844 }, "end": { "local": "1912-01-25T04:24:57+08:00", "utc": "1912-01-24T20:24:57Z", "ms": -1828323303490.1433 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-24T03:14:14+08:00", "utc": "1912-01-23T19:14:14Z", "ms": -1828413945885.7844 }, "end": { "local": "1912-01-25T04:24:57+08:00", "utc": "1912-01-24T20:24:57Z", "ms": -1828323303490.1433 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-01-24", "window": { "start": { "local": "1912-01-24T12:37:32+08:00", "utc": "1912-01-24T04:37:32Z", "ms": -1828380147705.6467 }, "end": { "local": "1912-01-24T13:25:32+08:00", "utc": "1912-01-24T05:25:32Z", "ms": -1828377267705.6467 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-01-25", "window": { "start": { "local": "1912-01-25T12:37:48+08:00", "utc": "1912-01-25T04:37:48Z", "ms": -1828293732265.1338 }, "end": { "local": "1912-01-25T13:25:48+08:00", "utc": "1912-01-25T05:25:48Z", "ms": -1828290852265.1338 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:14 on Wed 24 Jan to 04:25 on Thu 25 Jan.", "fact": "1912-01-23T19:14:14Z → 1912-01-24T20:24:57Z" }, { "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 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29571 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Qingyang, 1912: Wednesday 24 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-24", "confidence": "determinate" } ], "quote": "In Qingyang, Vasanta Pañcamī 1912 falls on Wednesday 24 January. Pañcamī runs from 03:14 on Wed 24 Jan to 04:25 on Thu 25 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vasanta-panchami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3542, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1912-01-26T05:03:59+08:00", "utc": "1912-01-25T21:03:59Z", "ms": -1828234560901.8838 }, "end": { "local": "1912-01-27T05:05:34+08:00", "utc": "1912-01-26T21:05:34Z", "ms": -1828148066203.9253 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-26T05:03:59+08:00", "utc": "1912-01-25T21:03:59Z", "ms": -1828234560901.8838 }, "end": { "local": "1912-01-27T05:05:34+08:00", "utc": "1912-01-26T21:05:34Z", "ms": -1828148066203.9253 } }, "kaala": "arunodaya", "days": [ { "local_date": "1912-01-26", "window": { "start": { "local": "1912-01-26T06:04:57+08:00", "utc": "1912-01-25T22:04:57Z", "ms": -1828230902818.2327 }, "end": { "local": "1912-01-26T07:55:18+08:00", "utc": "1912-01-25T23:55:18Z", "ms": -1828224282480.3801 } }, "covered_min": 110, "window_min": 110, "qualifies": true }, { "local_date": "1912-01-27", "window": { "start": { "local": "1912-01-27T06:04:35+08:00", "utc": "1912-01-26T22:04:35Z", "ms": -1828144524638.3667 }, "end": { "local": "1912-01-27T07:54:43+08:00", "utc": "1912-01-26T23:54:43Z", "ms": -1828137917229.3557 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 05:04 on Fri 26 Jan to 05:06 on Sat 27 Jan.", "fact": "1912-01-25T21:03:59Z → 1912-01-26T21:05:34Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 06:05–07:55 on the 26th, 06:05–07:55 on the 27th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during aruṇodaya. It covers 110 of 110 minutes on the 26th and 0 of 110 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3542 s" }, { "step": "ruling", "text": "Ratha Saptamī, Qingyang, 1912: Friday 26 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-26", "confidence": "determinate" } ], "quote": "In Qingyang, Ratha Saptamī 1912 falls on Friday 26 January. Saptamī runs from 05:04 on Fri 26 Jan to 05:06 on Sat 27 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/qingyang/festivals/1912/ratha-saptami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-01-30", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24944, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-01-30T00:57:04+08:00", "utc": "1912-01-29T16:57:04Z", "ms": -1827903775779.2517 }, "end": { "local": "1912-01-30T22:14:33+08:00", "utc": "1912-01-30T14:14:33Z", "ms": -1827827126661.0828 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-30T00:57:04+08:00", "utc": "1912-01-29T16:57:04Z", "ms": -1827903775779.2517 }, "end": { "local": "1912-01-30T22:14:33+08:00", "utc": "1912-01-30T14:14:33Z", "ms": -1827827126661.0828 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-01-30", "window": { "start": { "local": "1912-01-30T07:52:48+08:00", "utc": "1912-01-29T23:52:48Z", "ms": -1827878831943.4119 }, "end": { "local": "1912-01-30T07:52:48+08:00", "utc": "1912-01-29T23:52:48Z", "ms": -1827878831943.4119 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-01-31", "window": { "start": { "local": "1912-01-31T07:52:06+08:00", "utc": "1912-01-30T23:52:06Z", "ms": -1827792473580.8972 }, "end": { "local": "1912-01-31T07:52:06+08:00", "utc": "1912-01-30T23:52:06Z", "ms": -1827792473580.8972 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:57 on Tue 30 Jan to 22:15 on Tue 30 Jan.", "fact": "1912-01-29T16:57:04Z → 1912-01-30T14:14:33Z" }, { "step": "kaala", "text": "Sunrise is at 07:53 on the 30th and 07:52 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 24944 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Qingyang, 1912: Tuesday 30 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": "1912-01-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-30", "confidence": "determinate" } ], "quote": "In Qingyang, Jayā Ekādaśī 1912 falls on Tuesday 30 January. Ekādaśī runs from 00:57 on Tue 30 Jan to 22:15 on Tue 30 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-01-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20078, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1912-01-30T22:14:33+08:00", "utc": "1912-01-30T14:14:33Z", "ms": -1827827126661.0828 }, "end": { "local": "1912-01-31T19:01:41+08:00", "utc": "1912-01-31T11:01:41Z", "ms": -1827752298955.6152 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-30T22:14:33+08:00", "utc": "1912-01-30T14:14:33Z", "ms": -1827827126661.0828 }, "end": { "local": "1912-01-31T19:01:41+08:00", "utc": "1912-01-31T11:01:41Z", "ms": -1827752298955.6152 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-01-30", "window": { "start": { "local": "1912-01-30T12:38:53+08:00", "utc": "1912-01-30T04:38:53Z", "ms": -1827861667427.3413 }, "end": { "local": "1912-01-30T13:26:53+08:00", "utc": "1912-01-30T05:26:53Z", "ms": -1827858787427.3413 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-01-31", "window": { "start": { "local": "1912-01-31T12:39:03+08:00", "utc": "1912-01-31T04:39:03Z", "ms": -1827775256968.6504 }, "end": { "local": "1912-01-31T13:27:03+08:00", "utc": "1912-01-31T05:27:03Z", "ms": -1827772376968.6504 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 22:15 on Tue 30 Jan to 19:02 on Wed 31 Jan.", "fact": "1912-01-30T14:14:33Z → 1912-01-31T11:01:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 30th, 12:39–13:27 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 20078 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Qingyang, 1912: Wednesday 31 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhishma-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-31", "confidence": "determinate" } ], "quote": "In Qingyang, Bhīṣma Dvādaśī 1912 falls on Wednesday 31 January. Dvādaśī runs from 22:15 on Tue 30 Jan to 19:02 on Wed 31 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/bhishma-dvadashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-01-31", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2861, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-01-31T19:01:41+08:00", "utc": "1912-01-31T11:01:41Z", "ms": -1827752298955.6152 }, "end": { "local": "1912-02-01T15:27:30+08:00", "utc": "1912-02-01T07:27:30Z", "ms": -1827678750055.9192 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-01-31T19:01:41+08:00", "utc": "1912-01-31T11:01:41Z", "ms": -1827752298955.6152 }, "end": { "local": "1912-02-01T15:27:30+08:00", "utc": "1912-02-01T07:27:30Z", "ms": -1827678750055.9192 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-01-31", "window": { "start": { "local": "1912-01-31T18:14:00+08:00", "utc": "1912-01-31T10:14:00Z", "ms": -1827755160356.4036 }, "end": { "local": "1912-01-31T20:02:59+08:00", "utc": "1912-01-31T12:02:59Z", "ms": -1827748621224.756 } }, "covered_min": 61, "window_min": 109, "qualifies": true }, { "local_date": "1912-02-01", "window": { "start": { "local": "1912-02-01T18:15:02+08:00", "utc": "1912-02-01T10:15:02Z", "ms": -1827668697827.09 }, "end": { "local": "1912-02-01T20:03:47+08:00", "utc": "1912-02-01T12:03:47Z", "ms": -1827662173020.3591 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:02 on Wed 31 Jan to 15:27 on Thu 1 Feb.", "fact": "1912-01-31T11:01:41Z → 1912-02-01T07:27:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:14–20:03 on the 31st, 18:15–20:04 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 61 of 109 minutes on the 31st and 0 of 109 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2861 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Wednesday 31 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": "1912-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-01-31", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Wednesday 31 January. Trayodaśī runs from 19:02 on Wed 31 Jan to 15:27 on Thu 1 Feb and covers 61 of 109 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-01-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-02-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3415, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-02-02T11:42:27+08:00", "utc": "1912-02-02T03:42:27Z", "ms": -1827605853465.4841 }, "end": { "local": "1912-02-03T07:57:47+08:00", "utc": "1912-02-02T23:57:47Z", "ms": -1827532932770.9573 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1912-02-02T11:42:27+08:00", "utc": "1912-02-02T03:42:27Z", "ms": -1827605853465.4841 }, "end": { "local": "1912-02-03T07:57:47+08:00", "utc": "1912-02-02T23:57:47Z", "ms": -1827532932770.9573 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-02-02", "window": { "start": { "local": "1912-02-02T12:39:21+08:00", "utc": "1912-02-02T04:39:21Z", "ms": -1827602438562.0674 }, "end": { "local": "1912-02-02T13:27:21+08:00", "utc": "1912-02-02T05:27:21Z", "ms": -1827599558562.0674 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-02-03", "window": { "start": { "local": "1912-02-03T12:39:29+08:00", "utc": "1912-02-03T04:39:29Z", "ms": -1827516030605.4102 }, "end": { "local": "1912-02-03T13:27:29+08:00", "utc": "1912-02-03T05:27:29Z", "ms": -1827513150605.4102 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 11:42 on Fri 2 Feb to 07:58 on Sat 3 Feb.", "fact": "1912-02-02T03:42:27Z → 1912-02-02T23:57:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:39–13:27 on the 2nd, 12:39–13:27 on the 3rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 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: paraviddha → only-day · margin 3415 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Qingyang, 1912: Friday 2 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": "1912-02-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-02-02", "confidence": "determinate" } ], "quote": "In Qingyang, Māghī Pūrṇimā 1912 falls on Friday 2 February. Pūrṇimā runs from 11:42 on Fri 2 Feb to 07:58 on Sat 3 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/maghi-purnima", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-02-05", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-02-05", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 5151, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-02-05T22:40:22+08:00", "utc": "1912-02-05T14:40:22Z", "ms": -1827307177615.7122 }, "end": { "local": "1912-02-06T20:47:46+08:00", "utc": "1912-02-06T12:47:46Z", "ms": -1827227533854.719 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1912-02-05T22:40:22+08:00", "utc": "1912-02-05T14:40:22Z", "ms": -1827307177615.7122 }, "end": { "local": "1912-02-06T20:47:46+08:00", "utc": "1912-02-06T12:47:46Z", "ms": -1827227533854.719 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-02-05", "window": { "start": { "local": "1912-02-05T21:05:46+08:00", "utc": "1912-02-05T13:05:46Z", "ms": -1827312853558.492 }, "end": { "local": "1912-02-05T21:05:46+08:00", "utc": "1912-02-05T13:05:46Z", "ms": -1827312853558.492 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-02-06", "window": { "start": { "local": "1912-02-06T22:13:37+08:00", "utc": "1912-02-06T14:13:37Z", "ms": -1827222382612.758 }, "end": { "local": "1912-02-06T22:13:37+08:00", "utc": "1912-02-06T14:13:37Z", "ms": -1827222382612.758 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:40 on Mon 5 Feb to 20:48 on Tue 6 Feb.", "fact": "1912-02-05T14:40:22Z → 1912-02-06T12:47:46Z" }, { "step": "kaala", "text": "Moonrise is at 21:06 on the 5th and 22:14 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 not on the 6th.", "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 5151 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Monday 5 February.", "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": "1912-02-05", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-02-05", "confidence": "boundary" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Monday 5 February. Caturthī runs from 22:40 on Mon 5 Feb to 20:48 on Tue 6 Feb, and is current at moonrise on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-02-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-02-13", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-02-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10920, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-02-13T02:02:42+08:00", "utc": "1912-02-12T18:02:42Z", "ms": -1826690238251.4956 }, "end": { "local": "1912-02-14T04:37:45+08:00", "utc": "1912-02-13T20:37:45Z", "ms": -1826594535067.652 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1912-02-13T02:02:42+08:00", "utc": "1912-02-12T18:02:42Z", "ms": -1826690238251.4956 }, "end": { "local": "1912-02-14T04:37:45+08:00", "utc": "1912-02-13T20:37:45Z", "ms": -1826594535067.652 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-02-13", "window": { "start": { "local": "1912-02-13T07:40:46+08:00", "utc": "1912-02-12T23:40:46Z", "ms": -1826669953605.716 }, "end": { "local": "1912-02-13T07:40:46+08:00", "utc": "1912-02-12T23:40:46Z", "ms": -1826669953605.716 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-02-14", "window": { "start": { "local": "1912-02-14T07:39:45+08:00", "utc": "1912-02-13T23:39:45Z", "ms": -1826583615496.5393 }, "end": { "local": "1912-02-14T07:39:45+08:00", "utc": "1912-02-13T23:39:45Z", "ms": -1826583615496.5393 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:03 on Tue 13 Feb to 04:38 on Wed 14 Feb.", "fact": "1912-02-12T18:02:42Z → 1912-02-13T20:37:45Z" }, { "step": "kaala", "text": "Sunrise is at 07:41 on the 13th and 07:40 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 10920 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Qingyang, 1912: Tuesday 13 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": "1912-02-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-02-13", "confidence": "determinate" } ], "quote": "In Qingyang, Vijayā Ekādaśī 1912 falls on Tuesday 13 February. Ekādaśī runs from 02:03 on Tue 13 Feb to 04:38 on Wed 14 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-02-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-02-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31898, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-02-15T07:12:39+08:00", "utc": "1912-02-14T23:12:39Z", "ms": -1826498841226.121 }, "end": { "local": "1912-02-16T09:38:46+08:00", "utc": "1912-02-16T01:38:46Z", "ms": -1826403674354.5505 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1912-02-15T07:12:39+08:00", "utc": "1912-02-14T23:12:39Z", "ms": -1826498841226.121 }, "end": { "local": "1912-02-16T09:38:46+08:00", "utc": "1912-02-16T01:38:46Z", "ms": -1826403674354.5505 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-02-15", "window": { "start": { "local": "1912-02-15T18:29:24+08:00", "utc": "1912-02-15T10:29:24Z", "ms": -1826458236058.1697 }, "end": { "local": "1912-02-15T20:14:30+08:00", "utc": "1912-02-15T12:14:30Z", "ms": -1826451930303.2483 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "1912-02-16", "window": { "start": { "local": "1912-02-16T18:30:24+08:00", "utc": "1912-02-16T10:30:24Z", "ms": -1826371776164.4563 }, "end": { "local": "1912-02-16T20:15:13+08:00", "utc": "1912-02-16T12:15:13Z", "ms": -1826365487121.8936 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:13 on Thu 15 Feb to 09:39 on Fri 16 Feb.", "fact": "1912-02-14T23:12:39Z → 1912-02-16T01:38:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:29–20:14 on the 15th, 18:30–20:15 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 105 of 105 minutes on the 15th and 0 of 105 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 31898 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Thursday 15 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-02-15", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Thursday 15 February. Trayodaśī runs from 07:13 on Thu 15 Feb to 09:39 on Fri 16 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-02-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29475, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-02-16T09:38:46+08:00", "utc": "1912-02-16T01:38:46Z", "ms": -1826403674354.5505 }, "end": { "local": "1912-02-17T11:50:17+08:00", "utc": "1912-02-17T03:50:17Z", "ms": -1826309382857.1038 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1912-02-16T09:38:46+08:00", "utc": "1912-02-16T01:38:46Z", "ms": -1826403674354.5505 }, "end": { "local": "1912-02-17T11:50:17+08:00", "utc": "1912-02-17T03:50:17Z", "ms": -1826309382857.1038 } }, "kaala": "nishita", "days": [ { "local_date": "1912-02-15", "window": { "start": { "local": "1912-02-16T00:39:31+08:00", "utc": "1912-02-15T16:39:31Z", "ms": -1826436029477.214 }, "end": { "local": "1912-02-16T01:27:31+08:00", "utc": "1912-02-15T17:27:31Z", "ms": -1826433149477.214 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-02-16", "window": { "start": { "local": "1912-02-17T00:39:28+08:00", "utc": "1912-02-16T16:39:28Z", "ms": -1826349632254.8457 }, "end": { "local": "1912-02-17T01:27:28+08:00", "utc": "1912-02-16T17:27:28Z", "ms": -1826346752254.8457 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:39 on Fri 16 Feb to 11:50 on Sat 17 Feb.", "fact": "1912-02-16T01:38:46Z → 1912-02-17T03:50:17Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:40–01:28 on the 15th, 00:39–01:27 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 29475 s" }, { "step": "ruling", "text": "Mahāśivarātri, Qingyang, 1912: Friday 16 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-02-16", "confidence": "determinate" } ], "quote": "In Qingyang, Mahāśivarātri 1912 falls on Friday 16 February. Caturdaśī runs from 09:39 on Fri 16 Feb to 11:50 on Sat 17 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/maha-shivaratri", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-02-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13913, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-02-21T17:19:32+08:00", "utc": "1912-02-21T09:19:32Z", "ms": -1825944028084.2314 }, "end": { "local": "1912-02-22T17:44:43+08:00", "utc": "1912-02-22T09:44:43Z", "ms": -1825856116864.2544 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1912-02-21T17:19:32+08:00", "utc": "1912-02-21T09:19:32Z", "ms": -1825944028084.2314 }, "end": { "local": "1912-02-22T17:44:43+08:00", "utc": "1912-02-22T09:44:43Z", "ms": -1825856116864.2544 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-02-21", "window": { "start": { "local": "1912-02-21T12:39:39+08:00", "utc": "1912-02-21T04:39:39Z", "ms": -1825960821277.9304 }, "end": { "local": "1912-02-21T13:27:39+08:00", "utc": "1912-02-21T05:27:39Z", "ms": -1825957941277.9304 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-02-22", "window": { "start": { "local": "1912-02-22T12:39:32+08:00", "utc": "1912-02-22T04:39:32Z", "ms": -1825874427706.8293 }, "end": { "local": "1912-02-22T13:27:32+08:00", "utc": "1912-02-22T05:27:32Z", "ms": -1825871547706.8293 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:20 on Wed 21 Feb to 17:45 on Thu 22 Feb.", "fact": "1912-02-21T09:19:32Z → 1912-02-22T09:44:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 21st, 12:40–13:28 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 13913 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1912: Thursday 22 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": "1912-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-02-22", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1912 falls on Thursday 22 February. Caturthī runs from 17:20 on Wed 21 Feb to 17:45 on Thu 22 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-02-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-02-28", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-02-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 881, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-02-28T10:00:05+08:00", "utc": "1912-02-28T02:00:05Z", "ms": -1825365594918.1326 }, "end": { "local": "1912-02-29T07:07:26+08:00", "utc": "1912-02-28T23:07:26Z", "ms": -1825289553745.885 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1912-02-28T10:00:05+08:00", "utc": "1912-02-28T02:00:05Z", "ms": -1825365594918.1326 }, "end": { "local": "1912-02-29T07:07:26+08:00", "utc": "1912-02-28T23:07:26Z", "ms": -1825289553745.885 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-02-28", "window": { "start": { "local": "1912-02-28T07:23:24+08:00", "utc": "1912-02-27T23:23:24Z", "ms": -1825374996014.1565 }, "end": { "local": "1912-02-28T07:23:24+08:00", "utc": "1912-02-27T23:23:24Z", "ms": -1825374996014.1565 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-02-29", "window": { "start": { "local": "1912-02-29T07:22:07+08:00", "utc": "1912-02-28T23:22:07Z", "ms": -1825288672971.6392 }, "end": { "local": "1912-02-29T07:22:07+08:00", "utc": "1912-02-28T23:22:07Z", "ms": -1825288672971.6392 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:00 on Wed 28 Feb to 07:07 on Thu 29 Feb.", "fact": "1912-02-28T02:00:05Z → 1912-02-28T23:07:26Z" }, { "step": "kaala", "text": "Sunrise is at 07:23 on the 28th and 07:22 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 not on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither sunrise qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 881 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Qingyang, 1912: Wednesday 28 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": "1912-02-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-02-28", "confidence": "determinate" } ], "quote": "In Qingyang, Āmalakī Ekādaśī 1912 falls on Wednesday 28 February. Ekādaśī runs from 10:00 on Wed 28 Feb to 07:07 on Thu 29 Feb, and is current at sunrise on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-02-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-03-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15776, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-03-01T04:00:25+08:00", "utc": "1912-02-29T20:00:25Z", "ms": -1825214374947.551 }, "end": { "local": "1912-03-02T00:47:29+08:00", "utc": "1912-03-01T16:47:29Z", "ms": -1825139551366.2646 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1912-03-01T04:00:25+08:00", "utc": "1912-02-29T20:00:25Z", "ms": -1825214374947.551 }, "end": { "local": "1912-03-02T00:47:29+08:00", "utc": "1912-03-01T16:47:29Z", "ms": -1825139551366.2646 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-02-29", "window": { "start": { "local": "1912-02-29T18:42:52+08:00", "utc": "1912-02-29T10:42:52Z", "ms": -1825247828148.9036 }, "end": { "local": "1912-02-29T20:23:56+08:00", "utc": "1912-02-29T12:23:56Z", "ms": -1825241764486.2266 } }, "covered_min": 0, "window_min": 101, "qualifies": false }, { "local_date": "1912-03-01", "window": { "start": { "local": "1912-03-01T18:43:47+08:00", "utc": "1912-03-01T10:43:47Z", "ms": -1825161373099.9834 }, "end": { "local": "1912-03-01T20:24:33+08:00", "utc": "1912-03-01T12:24:33Z", "ms": -1825155327233.5117 } }, "covered_min": 101, "window_min": 101, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:00 on Fri 1 Mar to 00:47 on Sat 2 Mar.", "fact": "1912-02-29T20:00:25Z → 1912-03-01T16:47:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:24 on the 29th, 18:44–20:25 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 101 minutes on the 29th and 101 of 101 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15776 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Friday 1 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": "1912-03-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-01", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Friday 1 March. Trayodaśī runs from 04:00 on Fri 1 Mar to 00:47 on Sat 2 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-03-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-03", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 236, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-03-02T21:37:58+08:00", "utc": "1912-03-02T13:37:58Z", "ms": -1825064522145.7285 }, "end": { "local": "1912-03-03T18:41:40+08:00", "utc": "1912-03-03T10:41:40Z", "ms": -1824988700377.1804 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1912-03-02T21:37:58+08:00", "utc": "1912-03-02T13:37:58Z", "ms": -1825064522145.7285 }, "end": { "local": "1912-03-03T18:41:40+08:00", "utc": "1912-03-03T10:41:40Z", "ms": -1824988700377.1804 } }, "kaala": "sayahna", "days": [ { "local_date": "1912-03-02", "window": { "start": { "local": "1912-03-02T16:27:39+08:00", "utc": "1912-03-02T08:27:39Z", "ms": -1825083140532.8098 }, "end": { "local": "1912-03-02T18:44:42+08:00", "utc": "1912-03-02T10:44:42Z", "ms": -1825074918390.6506 } }, "covered_min": 0, "window_min": 137, "qualifies": false }, { "local_date": "1912-03-03", "window": { "start": { "local": "1912-03-03T16:28:07+08:00", "utc": "1912-03-03T08:28:07Z", "ms": -1824996712848.4666 }, "end": { "local": "1912-03-03T18:45:36+08:00", "utc": "1912-03-03T10:45:36Z", "ms": -1824988464009.2424 } }, "covered_min": 134, "window_min": 137, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:38 on Sat 2 Mar to 18:42 on Sun 3 Mar.", "fact": "1912-03-02T13:37:58Z → 1912-03-03T10:41:40Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:28–18:45 on the 2nd, 16:28–18:46 on the 3rd.", "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 137 minutes on the 2nd and 134 of 137 on the 3rd.", "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 236 s < 300 s" }, { "step": "ruling", "text": "Holikā Dahana, Qingyang, 1912: Sunday 3 March.", "fact": "confidence: boundary (margin)" } ], "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": "1912-03-03", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-03", "confidence": "boundary" } ], "quote": "In Qingyang, Holikā Dahana 1912 falls on Sunday 3 March. Pūrṇimā runs from 21:38 on Sat 2 Mar to 18:42 on Sun 3 Mar and covers 134 of 137 minutes of sāyāhna that late afternoon. It is 3 min 56 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/holika-dahana", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-04", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 236, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-03-02T21:37:58+08:00", "utc": "1912-03-02T13:37:58Z", "ms": -1825064522145.7285 }, "end": { "local": "1912-03-03T18:41:40+08:00", "utc": "1912-03-03T10:41:40Z", "ms": -1824988700377.1804 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1912-03-02T21:37:58+08:00", "utc": "1912-03-02T13:37:58Z", "ms": -1825064522145.7285 }, "end": { "local": "1912-03-03T18:41:40+08:00", "utc": "1912-03-03T10:41:40Z", "ms": -1824988700377.1804 } }, "kaala": "sayahna", "days": [ { "local_date": "1912-03-02", "window": { "start": { "local": "1912-03-02T16:27:39+08:00", "utc": "1912-03-02T08:27:39Z", "ms": -1825083140532.8098 }, "end": { "local": "1912-03-02T18:44:42+08:00", "utc": "1912-03-02T10:44:42Z", "ms": -1825074918390.6506 } }, "covered_min": 0, "window_min": 137, "qualifies": false }, { "local_date": "1912-03-03", "window": { "start": { "local": "1912-03-03T16:28:07+08:00", "utc": "1912-03-03T08:28:07Z", "ms": -1824996712848.4666 }, "end": { "local": "1912-03-03T18:45:36+08:00", "utc": "1912-03-03T10:45:36Z", "ms": -1824988464009.2424 } }, "covered_min": 134, "window_min": 137, "qualifies": true } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1912-03-03", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:38 on Sat 2 Mar to 18:42 on Sun 3 Mar.", "fact": "1912-03-02T13:37:58Z → 1912-03-03T10:41:40Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:28–18:45 on the 2nd, 16:28–18:46 on the 3rd.", "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 137 minutes on the 2nd and 134 of 137 on the 3rd.", "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 236 s < 300 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Sunday 3 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Qingyang, 1912: Monday 4 March.", "fact": "confidence: boundary (margin)" } ], "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": "1912-03-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-04", "confidence": "boundary" } ], "quote": "In Qingyang, Holī 1912 falls on Monday 4 March. It is kept the day after Holikā Dahana, which falls on Sunday 3 March. Pūrṇimā runs from 21:38 on Sat 2 Mar to 18:42 on Sun 3 Mar and covers 134 of 137 minutes of sāyāhna on the 3rd. It is 3 min 56 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/holi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31885, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1912-03-03T18:41:40+08:00", "utc": "1912-03-03T10:41:40Z", "ms": -1824988700377.1804 }, "end": { "local": "1912-03-04T16:08:17+08:00", "utc": "1912-03-04T08:08:17Z", "ms": -1824911503145.8367 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-03T18:41:40+08:00", "utc": "1912-03-03T10:41:40Z", "ms": -1824988700377.1804 }, "end": { "local": "1912-03-04T16:08:17+08:00", "utc": "1912-03-04T08:08:17Z", "ms": -1824911503145.8367 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-03-03", "window": { "start": { "local": "1912-03-03T07:18:12+08:00", "utc": "1912-03-02T23:18:12Z", "ms": -1825029708205.363 }, "end": { "local": "1912-03-03T07:18:12+08:00", "utc": "1912-03-02T23:18:12Z", "ms": -1825029708205.363 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-03-04", "window": { "start": { "local": "1912-03-04T07:16:52+08:00", "utc": "1912-03-03T23:16:52Z", "ms": -1824943387956.7307 }, "end": { "local": "1912-03-04T07:16:52+08:00", "utc": "1912-03-03T23:16:52Z", "ms": -1824943387956.7307 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 18:42 on Sun 3 Mar to 16:08 on Mon 4 Mar.", "fact": "1912-03-03T10:41:40Z → 1912-03-04T08:08:17Z" }, { "step": "kaala", "text": "Sunrise is at 07:18 on the 3rd and 07:17 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is not on the 3rd and is on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 31885 s" }, { "step": "ruling", "text": "Vasantotsava, Qingyang, 1912: Monday 4 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasantotsava", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "sunrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-03-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-04", "confidence": "determinate" } ], "quote": "In Qingyang, Vasantotsava 1912 falls on Monday 4 March. Pratipadā runs from 18:42 on Sun 3 Mar to 16:08 on Mon 4 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/vasantotsava", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-03-06", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33560, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-03-06T12:45:12+08:00", "utc": "1912-03-06T04:45:12Z", "ms": -1824750888274.7192 }, "end": { "local": "1912-03-07T12:08:42+08:00", "utc": "1912-03-07T04:08:42Z", "ms": -1824666678356.853 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-06T12:45:12+08:00", "utc": "1912-03-06T04:45:12Z", "ms": -1824750888274.7192 }, "end": { "local": "1912-03-07T12:08:42+08:00", "utc": "1912-03-07T04:08:42Z", "ms": -1824666678356.853 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-03-06", "window": { "start": { "local": "1912-03-06T22:04:32+08:00", "utc": "1912-03-06T14:04:32Z", "ms": -1824717328354.6902 }, "end": { "local": "1912-03-06T22:04:32+08:00", "utc": "1912-03-06T14:04:32Z", "ms": -1824717328354.6902 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-03-07", "window": { "start": { "local": "1912-03-07T23:09:52+08:00", "utc": "1912-03-07T15:09:52Z", "ms": -1824627008447.449 }, "end": { "local": "1912-03-07T23:09:52+08:00", "utc": "1912-03-07T15:09:52Z", "ms": -1824627008447.449 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:45 on Wed 6 Mar to 12:09 on Thu 7 Mar.", "fact": "1912-03-06T04:45:12Z → 1912-03-07T04:08:42Z" }, { "step": "kaala", "text": "Moonrise is at 22:05 on the 6th and 23:10 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 6th and is not on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33560 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Wednesday 6 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-03-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-06", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Wednesday 6 March. Caturthī runs from 12:45 on Wed 6 Mar to 12:09 on Thu 7 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-03-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5402, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1912-03-10T14:54:17+08:00", "utc": "1912-03-10T06:54:17Z", "ms": -1824397543020.7065 }, "end": { "local": "1912-03-11T17:02:11+08:00", "utc": "1912-03-11T09:02:11Z", "ms": -1824303468768.9138 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-10T14:54:17+08:00", "utc": "1912-03-10T06:54:17Z", "ms": -1824397543020.7065 }, "end": { "local": "1912-03-11T17:02:11+08:00", "utc": "1912-03-11T09:02:11Z", "ms": -1824303468768.9138 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-03-10", "window": { "start": { "local": "1912-03-10T12:36:15+08:00", "utc": "1912-03-10T04:36:15Z", "ms": -1824405824838.317 }, "end": { "local": "1912-03-10T13:24:15+08:00", "utc": "1912-03-10T05:24:15Z", "ms": -1824402944838.317 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-03-11", "window": { "start": { "local": "1912-03-11T12:36:00+08:00", "utc": "1912-03-11T04:36:00Z", "ms": -1824319440425.527 }, "end": { "local": "1912-03-11T13:24:00+08:00", "utc": "1912-03-11T05:24:00Z", "ms": -1824316560425.527 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 14:54 on Sun 10 Mar to 17:02 on Mon 11 Mar.", "fact": "1912-03-10T06:54:17Z → 1912-03-11T09:02:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:36–13:24 on the 10th, 12:36–13:24 on the 11th.", "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 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5402 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Qingyang, 1912: Monday 11 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": "1912-03-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-11", "confidence": "determinate" } ], "quote": "In Qingyang, Śītalāṣṭamī 1912 falls on Monday 11 March. Aṣṭamī runs from 14:54 on Sun 10 Mar to 17:02 on Mon 11 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/shitalashtami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-03-14", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23991, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-03-13T21:58:48+08:00", "utc": "1912-03-13T13:58:48Z", "ms": -1824112871598.4727 }, "end": { "local": "1912-03-15T00:21:50+08:00", "utc": "1912-03-14T16:21:50Z", "ms": -1824017890061.0598 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-13T21:58:48+08:00", "utc": "1912-03-13T13:58:48Z", "ms": -1824112871598.4727 }, "end": { "local": "1912-03-15T00:21:50+08:00", "utc": "1912-03-14T16:21:50Z", "ms": -1824017890061.0598 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-03-14", "window": { "start": { "local": "1912-03-14T07:03:06+08:00", "utc": "1912-03-13T23:03:06Z", "ms": -1824080213933.8435 }, "end": { "local": "1912-03-14T07:03:06+08:00", "utc": "1912-03-13T23:03:06Z", "ms": -1824080213933.8435 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-03-15", "window": { "start": { "local": "1912-03-15T07:01:41+08:00", "utc": "1912-03-14T23:01:41Z", "ms": -1823993898694.8372 }, "end": { "local": "1912-03-15T07:01:41+08:00", "utc": "1912-03-14T23:01:41Z", "ms": -1823993898694.8372 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:59 on Wed 13 Mar to 00:22 on Fri 15 Mar.", "fact": "1912-03-13T13:58:48Z → 1912-03-14T16:21:50Z" }, { "step": "kaala", "text": "Sunrise is at 07:03 on the 14th and 07:02 on the 15th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 14th and is not on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23991 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Qingyang, 1912: Thursday 14 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": "1912-03-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-14", "confidence": "determinate" } ], "quote": "In Qingyang, Pāpamocanī Ekādaśī 1912 falls on Thursday 14 March. Ekādaśī runs from 21:59 on Wed 13 Mar to 00:22 on Fri 15 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-03-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-03-16", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21285, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-03-16T02:27:25+08:00", "utc": "1912-03-15T18:27:25Z", "ms": -1823923954845.9863 }, "end": { "local": "1912-03-17T04:08:58+08:00", "utc": "1912-03-16T20:08:58Z", "ms": -1823831462324.8394 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-16T02:27:25+08:00", "utc": "1912-03-15T18:27:25Z", "ms": -1823923954845.9863 }, "end": { "local": "1912-03-17T04:08:58+08:00", "utc": "1912-03-16T20:08:58Z", "ms": -1823831462324.8394 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-03-15", "window": { "start": { "local": "1912-03-15T18:56:07+08:00", "utc": "1912-03-15T10:56:07Z", "ms": -1823951032665.7852 }, "end": { "local": "1912-03-15T20:32:41+08:00", "utc": "1912-03-15T12:32:41Z", "ms": -1823945239474.3735 } }, "covered_min": 0, "window_min": 97, "qualifies": false }, { "local_date": "1912-03-16", "window": { "start": { "local": "1912-03-16T18:56:58+08:00", "utc": "1912-03-16T10:56:58Z", "ms": -1823864581522.3333 }, "end": { "local": "1912-03-16T20:33:13+08:00", "utc": "1912-03-16T12:33:13Z", "ms": -1823858806520.8755 } }, "covered_min": 96, "window_min": 96, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:27 on Sat 16 Mar to 04:09 on Sun 17 Mar.", "fact": "1912-03-15T18:27:25Z → 1912-03-16T20:08:58Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:33 on the 15th, 18:57–20:33 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 97 minutes on the 15th and 96 of 96 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 21285 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Saturday 16 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": "1912-03-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-16", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Saturday 16 March. Trayodaśī runs from 02:27 on Sat 16 Mar to 04:09 on Sun 17 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-03-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-03-17", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10023, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-03-17T04:08:58+08:00", "utc": "1912-03-16T20:08:58Z", "ms": -1823831462324.8394 }, "end": { "local": "1912-03-18T05:22:58+08:00", "utc": "1912-03-17T21:22:58Z", "ms": -1823740622387.5754 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-17T04:08:58+08:00", "utc": "1912-03-16T20:08:58Z", "ms": -1823831462324.8394 }, "end": { "local": "1912-03-18T05:22:58+08:00", "utc": "1912-03-17T21:22:58Z", "ms": -1823740622387.5754 } }, "kaala": "nishita", "days": [ { "local_date": "1912-03-16", "window": { "start": { "local": "1912-03-17T00:33:55+08:00", "utc": "1912-03-16T16:33:55Z", "ms": -1823844365266.8667 }, "end": { "local": "1912-03-17T01:21:55+08:00", "utc": "1912-03-16T17:21:55Z", "ms": -1823841485266.8667 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-03-17", "window": { "start": { "local": "1912-03-18T00:33:37+08:00", "utc": "1912-03-17T16:33:37Z", "ms": -1823757982537.9731 }, "end": { "local": "1912-03-18T01:21:37+08:00", "utc": "1912-03-17T17:21:37Z", "ms": -1823755102537.9731 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:09 on Sun 17 Mar to 05:23 on Mon 18 Mar.", "fact": "1912-03-16T20:08:58Z → 1912-03-17T21:22:58Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:34–01:22 on the 16th, 00:34–01:22 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 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10023 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Sunday 17 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": "1912-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-17", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Sunday 17 March. Caturdaśī runs from 04:09 on Sun 17 Mar to 05:23 on Mon 18 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-03-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22048, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1912-03-19T06:08:25+08:00", "utc": "1912-03-18T22:08:25Z", "ms": -1823651495215.674 }, "end": { "local": "1912-03-20T06:26:00+08:00", "utc": "1912-03-19T22:26:00Z", "ms": -1823564040336.668 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-19T06:08:25+08:00", "utc": "1912-03-18T22:08:25Z", "ms": -1823651495215.674 }, "end": { "local": "1912-03-20T06:26:00+08:00", "utc": "1912-03-19T22:26:00Z", "ms": -1823564040336.668 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-03-19", "window": { "start": { "local": "1912-03-19T12:33:45+08:00", "utc": "1912-03-19T04:33:45Z", "ms": -1823628374691.348 }, "end": { "local": "1912-03-19T13:21:45+08:00", "utc": "1912-03-19T05:21:45Z", "ms": -1823625494691.348 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-03-20", "window": { "start": { "local": "1912-03-20T12:33:28+08:00", "utc": "1912-03-20T04:33:28Z", "ms": -1823541992397.327 }, "end": { "local": "1912-03-20T13:21:28+08:00", "utc": "1912-03-20T05:21:28Z", "ms": -1823539112397.327 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 06:08 on Tue 19 Mar to 06:26 on Wed 20 Mar.", "fact": "1912-03-18T22:08:25Z → 1912-03-19T22:26:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:34–13:22 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": "Pratipadā 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22048 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Qingyang, 1912: Tuesday 19 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": "1912-03-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-19", "confidence": "determinate" } ], "quote": "In Qingyang, Navarātrārambha (Caitra) (Chaitra Navratri) 1912 falls on Tuesday 19 March. Pratipadā runs from 06:08 on Tue 19 Mar to 06:26 on Wed 20 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/navaratra-arambha-caitra", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22553, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1912-03-21T06:17:17+08:00", "utc": "1912-03-20T22:17:17Z", "ms": -1823478163105.882 }, "end": { "local": "1912-03-22T05:44:10+08:00", "utc": "1912-03-21T21:44:10Z", "ms": -1823393749956.2078 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-21T06:17:17+08:00", "utc": "1912-03-20T22:17:17Z", "ms": -1823478163105.882 }, "end": { "local": "1912-03-22T05:44:10+08:00", "utc": "1912-03-21T21:44:10Z", "ms": -1823393749956.2078 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-03-21", "window": { "start": { "local": "1912-03-21T12:33:10+08:00", "utc": "1912-03-21T04:33:10Z", "ms": -1823455610250.2808 }, "end": { "local": "1912-03-21T13:21:10+08:00", "utc": "1912-03-21T05:21:10Z", "ms": -1823452730250.2808 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-03-22", "window": { "start": { "local": "1912-03-22T12:32:52+08:00", "utc": "1912-03-22T04:32:52Z", "ms": -1823369228233.2139 }, "end": { "local": "1912-03-22T13:20:52+08:00", "utc": "1912-03-22T05:20:52Z", "ms": -1823366348233.2139 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:17 on Thu 21 Mar to 05:44 on Fri 22 Mar.", "fact": "1912-03-20T22:17:17Z → 1912-03-21T21:44:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:33–13:21 on the 21st, 12:33–13:21 on the 22nd.", "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 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22553 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Qingyang, 1912: Thursday 21 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": "1912-03-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-21", "confidence": "determinate" } ], "quote": "In Qingyang, Gaurī Tṛtīyā (Gangaur) 1912 falls on Thursday 21 March. Tṛtīyā runs from 06:17 on Thu 21 Mar to 05:44 on Fri 22 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/gauri-tritiya", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22553, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1912-03-21T06:17:17+08:00", "utc": "1912-03-20T22:17:17Z", "ms": -1823478163105.882 }, "end": { "local": "1912-03-22T05:44:10+08:00", "utc": "1912-03-21T21:44:10Z", "ms": -1823393749956.2078 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-21T06:17:17+08:00", "utc": "1912-03-20T22:17:17Z", "ms": -1823478163105.882 }, "end": { "local": "1912-03-22T05:44:10+08:00", "utc": "1912-03-21T21:44:10Z", "ms": -1823393749956.2078 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-03-21", "window": { "start": { "local": "1912-03-21T12:33:10+08:00", "utc": "1912-03-21T04:33:10Z", "ms": -1823455610250.2808 }, "end": { "local": "1912-03-21T13:21:10+08:00", "utc": "1912-03-21T05:21:10Z", "ms": -1823452730250.2808 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-03-22", "window": { "start": { "local": "1912-03-22T12:32:52+08:00", "utc": "1912-03-22T04:32:52Z", "ms": -1823369228233.2139 }, "end": { "local": "1912-03-22T13:20:52+08:00", "utc": "1912-03-22T05:20:52Z", "ms": -1823366348233.2139 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:17 on Thu 21 Mar to 05:44 on Fri 22 Mar.", "fact": "1912-03-20T22:17:17Z → 1912-03-21T21:44:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:33–13:21 on the 21st, 12:33–13:21 on the 22nd.", "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 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22553 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Qingyang, 1912: Thursday 21 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": "1912-03-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-21", "confidence": "determinate" } ], "quote": "In Qingyang, Saubhāgya Śayana Vrata 1912 falls on Thursday 21 March. Tṛtīyā runs from 06:17 on Thu 21 Mar to 05:44 on Fri 22 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/saubhagya-shayana-vrata", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-03-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24522, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-03-22T05:44:10+08:00", "utc": "1912-03-21T21:44:10Z", "ms": -1823393749956.2078 }, "end": { "local": "1912-03-23T04:48:31+08:00", "utc": "1912-03-22T20:48:31Z", "ms": -1823310689004.7905 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-22T05:44:10+08:00", "utc": "1912-03-21T21:44:10Z", "ms": -1823393749956.2078 }, "end": { "local": "1912-03-23T04:48:31+08:00", "utc": "1912-03-22T20:48:31Z", "ms": -1823310689004.7905 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-03-22", "window": { "start": { "local": "1912-03-22T12:32:52+08:00", "utc": "1912-03-22T04:32:52Z", "ms": -1823369228233.2139 }, "end": { "local": "1912-03-22T13:20:52+08:00", "utc": "1912-03-22T05:20:52Z", "ms": -1823366348233.2139 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-03-23", "window": { "start": { "local": "1912-03-23T12:32:34+08:00", "utc": "1912-03-23T04:32:34Z", "ms": -1823282846328.977 }, "end": { "local": "1912-03-23T13:20:34+08:00", "utc": "1912-03-23T05:20:34Z", "ms": -1823279966328.977 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:44 on Fri 22 Mar to 04:49 on Sat 23 Mar.", "fact": "1912-03-21T21:44:10Z → 1912-03-22T20:48:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:33–13:21 on the 22nd, 12:33–13:21 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24522 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1912: Friday 22 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": "1912-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-22", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1912 falls on Friday 22 March. Caturthī runs from 05:44 on Fri 22 Mar to 04:49 on Sat 23 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-03-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27843, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1912-03-23T04:48:31+08:00", "utc": "1912-03-22T20:48:31Z", "ms": -1823310689004.7905 }, "end": { "local": "1912-03-24T03:32:04+08:00", "utc": "1912-03-23T19:32:04Z", "ms": -1823228876230.5574 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-23T04:48:31+08:00", "utc": "1912-03-22T20:48:31Z", "ms": -1823310689004.7905 }, "end": { "local": "1912-03-24T03:32:04+08:00", "utc": "1912-03-23T19:32:04Z", "ms": -1823228876230.5574 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-03-23", "window": { "start": { "local": "1912-03-23T12:32:34+08:00", "utc": "1912-03-23T04:32:34Z", "ms": -1823282846328.977 }, "end": { "local": "1912-03-23T13:20:34+08:00", "utc": "1912-03-23T05:20:34Z", "ms": -1823279966328.977 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-03-24", "window": { "start": { "local": "1912-03-24T12:32:15+08:00", "utc": "1912-03-24T04:32:15Z", "ms": -1823196464520.0835 }, "end": { "local": "1912-03-24T13:20:15+08:00", "utc": "1912-03-24T05:20:15Z", "ms": -1823193584520.0835 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 04:49 on Sat 23 Mar to 03:32 on Sun 24 Mar.", "fact": "1912-03-22T20:48:31Z → 1912-03-23T19:32:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:33–13:21 on the 23rd, 12:32–13:20 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27843 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Qingyang, 1912: Saturday 23 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": "1912-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-23", "confidence": "determinate" } ], "quote": "In Qingyang, Lakṣmī Pañcamī 1912 falls on Saturday 23 March. Pañcamī runs from 04:49 on Sat 23 Mar to 03:32 on Sun 24 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/lakshmi-panchami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30983, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1912-03-26T00:03:43+08:00", "utc": "1912-03-25T16:03:43Z", "ms": -1823068576989.1887 }, "end": { "local": "1912-03-26T21:56:02+08:00", "utc": "1912-03-26T13:56:02Z", "ms": -1822989837682.5122 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-26T00:03:43+08:00", "utc": "1912-03-25T16:03:43Z", "ms": -1823068576989.1887 }, "end": { "local": "1912-03-26T21:56:02+08:00", "utc": "1912-03-26T13:56:02Z", "ms": -1822989837682.5122 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-03-25", "window": { "start": { "local": "1912-03-25T12:31:57+08:00", "utc": "1912-03-25T04:31:57Z", "ms": -1823110082788.5142 }, "end": { "local": "1912-03-25T13:19:57+08:00", "utc": "1912-03-25T05:19:57Z", "ms": -1823107202788.5142 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-03-26", "window": { "start": { "local": "1912-03-26T12:31:39+08:00", "utc": "1912-03-26T04:31:39Z", "ms": -1823023701115.5454 }, "end": { "local": "1912-03-26T13:19:39+08:00", "utc": "1912-03-26T05:19:39Z", "ms": -1823020821115.5454 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:04 on Tue 26 Mar to 21:56 on Tue 26 Mar.", "fact": "1912-03-25T16:03:43Z → 1912-03-26T13:56:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 25th, 12:32–13:20 on the 26th.", "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 25th and 48 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 30983 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Qingyang, 1912: Tuesday 26 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": "1912-03-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-26", "confidence": "determinate" } ], "quote": "In Qingyang, Bhavānī Utpatti 1912 falls on Tuesday 26 March. Aṣṭamī runs from 00:04 on Tue 26 Mar to 21:56 on Tue 26 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/bhavani-utpatti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22629, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1912-03-26T21:56:02+08:00", "utc": "1912-03-26T13:56:02Z", "ms": -1822989837682.5122 }, "end": { "local": "1912-03-27T19:36:30+08:00", "utc": "1912-03-27T11:36:30Z", "ms": -1822911810364.188 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-26T21:56:02+08:00", "utc": "1912-03-26T13:56:02Z", "ms": -1822989837682.5122 }, "end": { "local": "1912-03-27T19:36:30+08:00", "utc": "1912-03-27T11:36:30Z", "ms": -1822911810364.188 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-03-26", "window": { "start": { "local": "1912-03-26T12:31:39+08:00", "utc": "1912-03-26T04:31:39Z", "ms": -1823023701115.5454 }, "end": { "local": "1912-03-26T13:19:39+08:00", "utc": "1912-03-26T05:19:39Z", "ms": -1823020821115.5454 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-03-27", "window": { "start": { "local": "1912-03-27T12:31:21+08:00", "utc": "1912-03-27T04:31:21Z", "ms": -1822937319481.599 }, "end": { "local": "1912-03-27T13:19:21+08:00", "utc": "1912-03-27T05:19:21Z", "ms": -1822934439481.599 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 21:56 on Tue 26 Mar to 19:36 on Wed 27 Mar.", "fact": "1912-03-26T13:56:02Z → 1912-03-27T11:36:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 26th, 12:31–13:19 on the 27th.", "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 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: unstated → only-day · margin 22629 s" }, { "step": "ruling", "text": "Rāma Navamī, Qingyang, 1912: Wednesday 27 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": "1912-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-27", "confidence": "determinate" } ], "quote": "In Qingyang, Rāma Navamī 1912 falls on Wednesday 27 March. Navamī runs from 21:56 on Tue 26 Mar to 19:36 on Wed 27 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/rama-navami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-03-29", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28594, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-03-28T17:08:58+08:00", "utc": "1912-03-28T09:08:58Z", "ms": -1822834262407.078 }, "end": { "local": "1912-03-29T14:38:13+08:00", "utc": "1912-03-29T06:38:13Z", "ms": -1822756907060.711 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-28T17:08:58+08:00", "utc": "1912-03-28T09:08:58Z", "ms": -1822834262407.078 }, "end": { "local": "1912-03-29T14:38:13+08:00", "utc": "1912-03-29T06:38:13Z", "ms": -1822756907060.711 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-03-28", "window": { "start": { "local": "1912-03-28T06:43:05+08:00", "utc": "1912-03-27T22:43:05Z", "ms": -1822871815404.2583 }, "end": { "local": "1912-03-28T06:43:05+08:00", "utc": "1912-03-27T22:43:05Z", "ms": -1822871815404.2583 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-03-29", "window": { "start": { "local": "1912-03-29T06:41:39+08:00", "utc": "1912-03-28T22:41:39Z", "ms": -1822785501462.658 }, "end": { "local": "1912-03-29T06:41:39+08:00", "utc": "1912-03-28T22:41:39Z", "ms": -1822785501462.658 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:09 on Thu 28 Mar to 14:38 on Fri 29 Mar.", "fact": "1912-03-28T09:08:58Z → 1912-03-29T06:38:13Z" }, { "step": "kaala", "text": "Sunrise is at 06:43 on the 28th and 06:42 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 28594 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Qingyang, 1912: Friday 29 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": "1912-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-29", "confidence": "determinate" } ], "quote": "In Qingyang, Kāmadā Ekādaśī 1912 falls on Friday 29 March. Ekādaśī runs from 17:09 on Thu 28 Mar to 14:38 on Fri 29 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-03-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1232, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-03-30T12:09:53+08:00", "utc": "1912-03-30T04:09:53Z", "ms": -1822679406954.6143 }, "end": { "local": "1912-03-31T09:50:16+08:00", "utc": "1912-03-31T01:50:16Z", "ms": -1822601383535.4878 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-30T12:09:53+08:00", "utc": "1912-03-30T04:09:53Z", "ms": -1822679406954.6143 }, "end": { "local": "1912-03-31T09:50:16+08:00", "utc": "1912-03-31T01:50:16Z", "ms": -1822601383535.4878 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-03-30", "window": { "start": { "local": "1912-03-30T12:30:25+08:00", "utc": "1912-03-30T04:30:25Z", "ms": -1822678174603.7239 }, "end": { "local": "1912-03-30T13:18:25+08:00", "utc": "1912-03-30T05:18:25Z", "ms": -1822675294603.7239 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-03-31", "window": { "start": { "local": "1912-03-31T12:30:07+08:00", "utc": "1912-03-31T04:30:07Z", "ms": -1822591792911.2734 }, "end": { "local": "1912-03-31T13:18:07+08:00", "utc": "1912-03-31T05:18:07Z", "ms": -1822588912911.2734 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:10 on Sat 30 Mar to 09:50 on Sun 31 Mar.", "fact": "1912-03-30T04:09:53Z → 1912-03-31T01:50:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 30th, 12:30–13:18 on the 31st.", "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 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: purvaviddha → only-day · margin 1232 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Qingyang, 1912: Saturday 30 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ananga-trayodashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 13 Ananga trayodasi (purvaviddha), Mahavira jayanti (Jain)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-30", "confidence": "determinate" } ], "quote": "In Qingyang, Anaṅga Trayodaśī 1912 falls on Saturday 30 March. Trayodaśī runs from 12:10 on Sat 30 Mar to 09:50 on Sun 31 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/ananga-trayodashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-03-30", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25125, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-03-30T12:09:53+08:00", "utc": "1912-03-30T04:09:53Z", "ms": -1822679406954.6143 }, "end": { "local": "1912-03-31T09:50:16+08:00", "utc": "1912-03-31T01:50:16Z", "ms": -1822601383535.4878 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-30T12:09:53+08:00", "utc": "1912-03-30T04:09:53Z", "ms": -1822679406954.6143 }, "end": { "local": "1912-03-31T09:50:16+08:00", "utc": "1912-03-31T01:50:16Z", "ms": -1822601383535.4878 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-03-30", "window": { "start": { "local": "1912-03-30T19:08:38+08:00", "utc": "1912-03-30T11:08:38Z", "ms": -1822654281811.0627 }, "end": { "local": "1912-03-30T20:40:39+08:00", "utc": "1912-03-30T12:40:39Z", "ms": -1822648760659.5085 } }, "covered_min": 92, "window_min": 92, "qualifies": true }, { "local_date": "1912-03-31", "window": { "start": { "local": "1912-03-31T19:09:27+08:00", "utc": "1912-03-31T11:09:27Z", "ms": -1822567832648.14 }, "end": { "local": "1912-03-31T20:41:11+08:00", "utc": "1912-03-31T12:41:11Z", "ms": -1822562329463.8064 } }, "covered_min": 0, "window_min": 92, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:10 on Sat 30 Mar to 09:50 on Sun 31 Mar.", "fact": "1912-03-30T04:09:53Z → 1912-03-31T01:50:16Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:09–20:41 on the 30th, 19:09–20:41 on the 31st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 92 of 92 minutes on the 30th and 0 of 92 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25125 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Saturday 30 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": "1912-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-30", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Saturday 30 March. Trayodaśī runs from 12:10 on Sat 30 Mar to 09:50 on Sun 31 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-03-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9591, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-03-31T09:50:16+08:00", "utc": "1912-03-31T01:50:16Z", "ms": -1822601383535.4878 }, "end": { "local": "1912-04-01T07:46:08+08:00", "utc": "1912-03-31T23:46:08Z", "ms": -1822522431917.656 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-03-31T09:50:16+08:00", "utc": "1912-03-31T01:50:16Z", "ms": -1822601383535.4878 }, "end": { "local": "1912-04-01T07:46:08+08:00", "utc": "1912-03-31T23:46:08Z", "ms": -1822522431917.656 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-03-31", "window": { "start": { "local": "1912-03-31T12:30:07+08:00", "utc": "1912-03-31T04:30:07Z", "ms": -1822591792911.2734 }, "end": { "local": "1912-03-31T13:18:07+08:00", "utc": "1912-03-31T05:18:07Z", "ms": -1822588912911.2734 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-04-01", "window": { "start": { "local": "1912-04-01T12:29:49+08:00", "utc": "1912-04-01T04:29:49Z", "ms": -1822505411146.8408 }, "end": { "local": "1912-04-01T13:17:49+08:00", "utc": "1912-04-01T05:17:49Z", "ms": -1822502531146.8408 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:50 on Sun 31 Mar to 07:46 on Mon 1 Apr.", "fact": "1912-03-31T01:50:16Z → 1912-03-31T23:46:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 31st, 12:30–13:18 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9591 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Qingyang, 1912: Sunday 31 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vishnu-damanaka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Madanabhanji, (Bengal & Orissa) (paraviddha), Sivadamanaka caturdasi, Visnudamanaka caturdasi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-03-31", "confidence": "determinate" } ], "quote": "In Qingyang, Viṣṇudamanaka Caturdaśī 1912 falls on Sunday 31 March. Caturdaśī runs from 09:50 on Sun 31 Mar to 07:46 on Mon 1 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vishnu-damanaka-chaturdashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17021, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-04-01T07:46:08+08:00", "utc": "1912-03-31T23:46:08Z", "ms": -1822522431917.656 }, "end": { "local": "1912-04-02T06:04:19+08:00", "utc": "1912-04-01T22:04:19Z", "ms": -1822442141310.84 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1912-04-01T07:46:08+08:00", "utc": "1912-03-31T23:46:08Z", "ms": -1822522431917.656 }, "end": { "local": "1912-04-02T06:04:19+08:00", "utc": "1912-04-01T22:04:19Z", "ms": -1822442141310.84 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-04-01", "window": { "start": { "local": "1912-04-01T12:29:49+08:00", "utc": "1912-04-01T04:29:49Z", "ms": -1822505411146.8408 }, "end": { "local": "1912-04-01T13:17:49+08:00", "utc": "1912-04-01T05:17:49Z", "ms": -1822502531146.8408 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-04-02", "window": { "start": { "local": "1912-04-02T12:29:31+08:00", "utc": "1912-04-02T04:29:31Z", "ms": -1822419029286.9712 }, "end": { "local": "1912-04-02T13:17:31+08:00", "utc": "1912-04-02T05:17:31Z", "ms": -1822416149286.9712 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:46 on Mon 1 Apr to 06:04 on Tue 2 Apr.", "fact": "1912-03-31T23:46:08Z → 1912-04-01T22:04:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 1st, 12:30–13:18 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 48 of 48 minutes on the 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17021 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Qingyang, 1912: Monday 1 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": "1912-04-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-01", "confidence": "determinate" } ], "quote": "In Qingyang, Caitrī Pūrṇimā 1912 falls on Monday 1 April. Pūrṇimā runs from 07:46 on Mon 1 Apr to 06:04 on Tue 2 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/chaitri-purnima", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-04-05", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21007, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-04-05T04:12:19+08:00", "utc": "1912-04-04T20:12:19Z", "ms": -1822189660736.106 }, "end": { "local": "1912-04-06T04:51:44+08:00", "utc": "1912-04-05T20:51:44Z", "ms": -1822100896464.6868 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-05T04:12:19+08:00", "utc": "1912-04-04T20:12:19Z", "ms": -1822189660736.106 }, "end": { "local": "1912-04-06T04:51:44+08:00", "utc": "1912-04-05T20:51:44Z", "ms": -1822100896464.6868 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-04-04", "window": { "start": { "local": "1912-04-04T21:56:26+08:00", "utc": "1912-04-04T13:56:26Z", "ms": -1822212214238.1233 }, "end": { "local": "1912-04-04T21:56:26+08:00", "utc": "1912-04-04T13:56:26Z", "ms": -1822212214238.1233 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-04-05", "window": { "start": { "local": "1912-04-05T23:01:36+08:00", "utc": "1912-04-05T15:01:36Z", "ms": -1822121903954.4128 }, "end": { "local": "1912-04-05T23:01:36+08:00", "utc": "1912-04-05T15:01:36Z", "ms": -1822121903954.4128 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:12 on Fri 5 Apr to 04:52 on Sat 6 Apr.", "fact": "1912-04-04T20:12:19Z → 1912-04-05T20:51:44Z" }, { "step": "kaala", "text": "Moonrise is at 21:56 on the 4th and 23:02 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 4th and is on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21007 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Friday 5 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": "1912-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-05", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Friday 5 April. Caturthī runs from 04:12 on Fri 5 Apr to 04:52 on Sat 6 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-04-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-12", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 56, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1912-04-13T06:19:44+08:00", "utc": "1912-04-12T22:19:44Z", "ms": -1821490815627.6655 }, "end": { "local": "1912-05-14T03:21:09+08:00", "utc": "1912-05-13T19:21:09Z", "ms": -1818823130799.437 } }, "span": { "of": "transit", "start": { "local": "1912-04-13T06:19:44+08:00", "utc": "1912-04-12T22:19:44Z", "ms": -1821490815627.6655 }, "end": { "local": "1912-04-13T06:19:44+08:00", "utc": "1912-04-12T22:19:44Z", "ms": -1821490815627.6655 } }, "kaala": "day", "days": [ { "local_date": "1912-04-12", "window": { "start": { "local": "1912-04-12T06:22:01+08:00", "utc": "1912-04-11T22:22:01Z", "ms": -1821577079153.5432 }, "end": { "local": "1912-04-13T06:20:40+08:00", "utc": "1912-04-12T22:20:40Z", "ms": -1821490760123.4634 } }, "covered_min": 1, "window_min": 1439, "qualifies": true }, { "local_date": "1912-04-13", "window": { "start": { "local": "1912-04-13T06:20:40+08:00", "utc": "1912-04-12T22:20:40Z", "ms": -1821490760123.4634 }, "end": { "local": "1912-04-14T06:19:19+08:00", "utc": "1912-04-13T22:19:19Z", "ms": -1821404440516.375 } }, "covered_min": 0, "window_min": 1439, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 06:20 on Sat 13 Apr.", "fact": "1912-04-12T22:19:44Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:22 on the 12th, and from 06:21 on the 13th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 12th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 56 s < 300 s" }, { "step": "ruling", "text": "Vaiśākhī, Qingyang, 1912: Friday 12 April.", "fact": "confidence: boundary (margin)" } ], "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": "1912-04-12", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-12", "confidence": "boundary" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1912-04-13", "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": "1912-04-13", "statement": "Past sunset, the next day (the Tamil rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } } ], "quote": "In Qingyang, Vaiśākhī 1912 falls on Friday 12 April. The Sun enters Meṣa at 06:20 on Sat 13 Apr, and the rule counts the day from sunrise. Counted from midnight, or by the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 13 April. It is 0 min 56 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/vaishakhi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-04-13", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38561, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-04-12T17:04:42+08:00", "utc": "1912-04-12T09:04:42Z", "ms": -1821538517668.474 }, "end": { "local": "1912-04-13T18:45:40+08:00", "utc": "1912-04-13T10:45:40Z", "ms": -1821446060453.367 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-12T17:04:42+08:00", "utc": "1912-04-12T09:04:42Z", "ms": -1821538517668.474 }, "end": { "local": "1912-04-13T18:45:40+08:00", "utc": "1912-04-13T10:45:40Z", "ms": -1821446060453.367 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-04-12", "window": { "start": { "local": "1912-04-12T06:22:01+08:00", "utc": "1912-04-11T22:22:01Z", "ms": -1821577079153.5432 }, "end": { "local": "1912-04-12T06:22:01+08:00", "utc": "1912-04-11T22:22:01Z", "ms": -1821577079153.5432 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-04-13", "window": { "start": { "local": "1912-04-13T06:20:40+08:00", "utc": "1912-04-12T22:20:40Z", "ms": -1821490760123.4634 }, "end": { "local": "1912-04-13T06:20:40+08:00", "utc": "1912-04-12T22:20:40Z", "ms": -1821490760123.4634 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:05 on Fri 12 Apr to 18:46 on Sat 13 Apr.", "fact": "1912-04-12T09:04:42Z → 1912-04-13T10:45:40Z" }, { "step": "kaala", "text": "Sunrise is at 06:22 on the 12th and 06:21 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 12th and is 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 38561 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Qingyang, 1912: Saturday 13 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": "1912-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-13", "confidence": "determinate" } ], "quote": "In Qingyang, Varūthinī Ekādaśī 1912 falls on Saturday 13 April. Ekādaśī runs from 17:05 on Fri 12 Apr to 18:46 on Sat 13 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-04-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-04-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-15", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1441, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-04-14T19:53:38+08:00", "utc": "1912-04-14T11:53:38Z", "ms": -1821355581713.1206 }, "end": { "local": "1912-04-15T20:25:04+08:00", "utc": "1912-04-15T12:25:04Z", "ms": -1821267295642.4822 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-14T19:53:38+08:00", "utc": "1912-04-14T11:53:38Z", "ms": -1821355581713.1206 }, "end": { "local": "1912-04-15T20:25:04+08:00", "utc": "1912-04-15T12:25:04Z", "ms": -1821267295642.4822 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-04-14", "window": { "start": { "local": "1912-04-14T19:20:57+08:00", "utc": "1912-04-14T11:20:57Z", "ms": -1821357543188.0208 }, "end": { "local": "1912-04-14T20:48:33+08:00", "utc": "1912-04-14T12:48:33Z", "ms": -1821352286803.5042 } }, "covered_min": 55, "window_min": 88, "qualifies": true }, { "local_date": "1912-04-15", "window": { "start": { "local": "1912-04-15T19:21:46+08:00", "utc": "1912-04-15T11:21:46Z", "ms": -1821271093536.089 }, "end": { "local": "1912-04-15T20:49:06+08:00", "utc": "1912-04-15T12:49:06Z", "ms": -1821265854325.8289 } }, "covered_min": 63, "window_min": 87, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:54 on Sun 14 Apr to 20:25 on Mon 15 Apr.", "fact": "1912-04-14T11:53:38Z → 1912-04-15T12:25:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:21–20:49 on the 14th, 19:22–20:49 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 55 of 88 minutes on the 14th and 63 of 87 on the 15th.", "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 1441 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Monday 15 April.", "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": "1912-04-15", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-14", "confidence": "boundary" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Monday 15 April. Trayodaśī runs from 19:54 on Sun 14 Apr to 20:25 on Mon 15 Apr and covers 63 of 87 minutes of pradoṣa that evening. It also reaches the previous evening for 55 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-04-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-04-15", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14409, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-04-15T20:25:04+08:00", "utc": "1912-04-15T12:25:04Z", "ms": -1821267295642.4822 }, "end": { "local": "1912-04-16T20:19:42+08:00", "utc": "1912-04-16T12:19:42Z", "ms": -1821181217863.63 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-15T20:25:04+08:00", "utc": "1912-04-15T12:25:04Z", "ms": -1821267295642.4822 }, "end": { "local": "1912-04-16T20:19:42+08:00", "utc": "1912-04-16T12:19:42Z", "ms": -1821181217863.63 } }, "kaala": "nishita", "days": [ { "local_date": "1912-04-15", "window": { "start": { "local": "1912-04-16T00:25:14+08:00", "utc": "1912-04-15T16:25:14Z", "ms": -1821252886497.6135 }, "end": { "local": "1912-04-16T01:13:14+08:00", "utc": "1912-04-15T17:13:14Z", "ms": -1821250006497.6135 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-04-16", "window": { "start": { "local": "1912-04-17T00:24:59+08:00", "utc": "1912-04-16T16:24:59Z", "ms": -1821166500885.1797 }, "end": { "local": "1912-04-17T01:12:59+08:00", "utc": "1912-04-16T17:12:59Z", "ms": -1821163620885.1797 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:25 on Mon 15 Apr to 20:20 on Tue 16 Apr.", "fact": "1912-04-15T12:25:04Z → 1912-04-16T12:19:42Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:25–01:13 on the 15th, 00:25–01:13 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14409 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Monday 15 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": "1912-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-15", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Monday 15 April. Caturdaśī runs from 20:25 on Mon 15 Apr to 20:20 on Tue 16 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-04-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9037, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1912-04-19T16:54:29+08:00", "utc": "1912-04-19T08:54:29Z", "ms": -1820934330937.3562 }, "end": { "local": "1912-04-20T14:59:49+08:00", "utc": "1912-04-20T06:59:49Z", "ms": -1820854811143.8127 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-19T16:54:29+08:00", "utc": "1912-04-19T08:54:29Z", "ms": -1820934330937.3562 }, "end": { "local": "1912-04-20T14:59:49+08:00", "utc": "1912-04-20T06:59:49Z", "ms": -1820854811143.8127 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-04-19", "window": { "start": { "local": "1912-04-19T19:25:06+08:00", "utc": "1912-04-19T11:25:06Z", "ms": -1820925294283.734 }, "end": { "local": "1912-04-19T20:51:17+08:00", "utc": "1912-04-19T12:51:17Z", "ms": -1820920122941.5083 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "1912-04-20", "window": { "start": { "local": "1912-04-20T19:25:56+08:00", "utc": "1912-04-20T11:25:56Z", "ms": -1820838844333.8606 }, "end": { "local": "1912-04-20T20:51:50+08:00", "utc": "1912-04-20T12:51:50Z", "ms": -1820833689730.7441 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 16:54 on Fri 19 Apr to 15:00 on Sat 20 Apr.", "fact": "1912-04-19T08:54:29Z → 1912-04-20T06:59:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:25–20:51 on the 19th, 19:26–20:52 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 86 of 86 minutes on the 19th and 0 of 86 on the 20th.", "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 9037 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Qingyang, 1912: Friday 19 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": "1912-04-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-19", "confidence": "determinate" } ], "quote": "In Qingyang, Paraśurāma Jayantī 1912 falls on Friday 19 April. Tṛtīyā runs from 16:54 on Fri 19 Apr to 15:00 on Sat 20 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/parashurama-jayanti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15810, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1912-04-19T16:54:29+08:00", "utc": "1912-04-19T08:54:29Z", "ms": -1820934330937.3562 }, "end": { "local": "1912-04-20T14:59:49+08:00", "utc": "1912-04-20T06:59:49Z", "ms": -1820854811143.8127 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-19T16:54:29+08:00", "utc": "1912-04-19T08:54:29Z", "ms": -1820934330937.3562 }, "end": { "local": "1912-04-20T14:59:49+08:00", "utc": "1912-04-20T06:59:49Z", "ms": -1820854811143.8127 } }, "kaala": "purvahna", "days": [ { "local_date": "1912-04-19", "window": { "start": { "local": "1912-04-19T06:12:47+08:00", "utc": "1912-04-18T22:12:47Z", "ms": -1820972832859.216 }, "end": { "local": "1912-04-19T10:36:53+08:00", "utc": "1912-04-19T02:36:53Z", "ms": -1820956986667.3887 } }, "covered_min": 0, "window_min": 264, "qualifies": false }, { "local_date": "1912-04-20", "window": { "start": { "local": "1912-04-20T06:11:31+08:00", "utc": "1912-04-19T22:11:31Z", "ms": -1820886509217.042 }, "end": { "local": "1912-04-20T10:36:19+08:00", "utc": "1912-04-20T02:36:19Z", "ms": -1820870620922.6482 } }, "covered_min": 265, "window_min": 265, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 16:54 on Fri 19 Apr to 15:00 on Sat 20 Apr.", "fact": "1912-04-19T08:54:29Z → 1912-04-20T06:59:49Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:13–10:37 on the 19th, 06:12–10:36 on the 20th.", "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 264 minutes on the 19th and 265 of 265 on the 20th.", "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 15810 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Qingyang, 1912: Saturday 20 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": "1912-04-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-20", "confidence": "determinate" } ], "quote": "In Qingyang, Akṣaya Tṛtīyā 1912 falls on Saturday 20 April. Tṛtīyā runs from 16:54 on Fri 19 Apr to 15:00 on Sat 20 Apr and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/qingyang/festivals/1912/akshaya-tritiya", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1266, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1912-04-21T12:51:25+08:00", "utc": "1912-04-21T04:51:25Z", "ms": -1820776115433.0288 }, "end": { "local": "1912-04-22T10:34:40+08:00", "utc": "1912-04-22T02:34:40Z", "ms": -1820697920324.6538 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-21T12:51:25+08:00", "utc": "1912-04-21T04:51:25Z", "ms": -1820776115433.0288 }, "end": { "local": "1912-04-22T10:34:40+08:00", "utc": "1912-04-22T02:34:40Z", "ms": -1820697920324.6538 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-04-21", "window": { "start": { "local": "1912-04-21T12:24:30+08:00", "utc": "1912-04-21T04:24:30Z", "ms": -1820777729576.6426 }, "end": { "local": "1912-04-21T13:12:30+08:00", "utc": "1912-04-21T05:12:30Z", "ms": -1820774849576.6426 } }, "covered_min": 21, "window_min": 48, "qualifies": true }, { "local_date": "1912-04-22", "window": { "start": { "local": "1912-04-22T12:24:18+08:00", "utc": "1912-04-22T04:24:18Z", "ms": -1820691341965.774 }, "end": { "local": "1912-04-22T13:12:18+08:00", "utc": "1912-04-22T05:12:18Z", "ms": -1820688461965.774 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:51 on Sun 21 Apr to 10:35 on Mon 22 Apr.", "fact": "1912-04-21T04:51:25Z → 1912-04-22T02:34:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 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": "Pañcamī must be present during madhyāhna. It covers 21 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1266 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Qingyang, 1912: Sunday 21 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": "1912-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-21", "confidence": "determinate" } ], "quote": "In Qingyang, Śaṅkara Jayantī 1912 falls on Sunday 21 April. Pañcamī runs from 12:51 on Sun 21 Apr to 10:35 on Mon 22 Apr and covers 21 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/shankara-jayanti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-04-21", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1266, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-04-20T14:59:49+08:00", "utc": "1912-04-20T06:59:49Z", "ms": -1820854811143.8127 }, "end": { "local": "1912-04-21T12:51:25+08:00", "utc": "1912-04-21T04:51:25Z", "ms": -1820776115433.0288 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-20T14:59:49+08:00", "utc": "1912-04-20T06:59:49Z", "ms": -1820854811143.8127 }, "end": { "local": "1912-04-21T12:51:25+08:00", "utc": "1912-04-21T04:51:25Z", "ms": -1820776115433.0288 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-04-20", "window": { "start": { "local": "1912-04-20T12:24:43+08:00", "utc": "1912-04-20T04:24:43Z", "ms": -1820864116775.4512 }, "end": { "local": "1912-04-20T13:12:43+08:00", "utc": "1912-04-20T05:12:43Z", "ms": -1820861236775.4512 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-04-21", "window": { "start": { "local": "1912-04-21T12:24:30+08:00", "utc": "1912-04-21T04:24:30Z", "ms": -1820777729576.6426 }, "end": { "local": "1912-04-21T13:12:30+08:00", "utc": "1912-04-21T05:12:30Z", "ms": -1820774849576.6426 } }, "covered_min": 27, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:00 on Sat 20 Apr to 12:51 on Sun 21 Apr.", "fact": "1912-04-20T06:59:49Z → 1912-04-21T04:51:25Z" }, { "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": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 27 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1266 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1912: Sunday 21 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": "1912-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-21", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1912 falls on Sunday 21 April. Caturthī runs from 15:00 on Sat 20 Apr to 12:51 on Sun 21 Apr and covers 27 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-04-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14978, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1912-04-23T08:14:28+08:00", "utc": "1912-04-23T00:14:28Z", "ms": -1820619932046.4849 }, "end": { "local": "1912-04-24T05:55:08+08:00", "utc": "1912-04-23T21:55:08Z", "ms": -1820541891934.458 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-23T08:14:28+08:00", "utc": "1912-04-23T00:14:28Z", "ms": -1820619932046.4849 }, "end": { "local": "1912-04-24T05:55:08+08:00", "utc": "1912-04-23T21:55:08Z", "ms": -1820541891934.458 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-04-23", "window": { "start": { "local": "1912-04-23T12:24:06+08:00", "utc": "1912-04-23T04:24:06Z", "ms": -1820604953933.2502 }, "end": { "local": "1912-04-23T13:12:06+08:00", "utc": "1912-04-23T05:12:06Z", "ms": -1820602073933.2502 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-04-24", "window": { "start": { "local": "1912-04-24T12:23:55+08:00", "utc": "1912-04-24T04:23:55Z", "ms": -1820518565468.9175 }, "end": { "local": "1912-04-24T13:11:55+08:00", "utc": "1912-04-24T05:11:55Z", "ms": -1820515685468.9175 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 08:14 on Tue 23 Apr to 05:55 on Wed 24 Apr.", "fact": "1912-04-23T00:14:28Z → 1912-04-23T21:55:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:24–13:12 on the 23rd, 12:24–13:12 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 14978 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Qingyang, 1912: Tuesday 23 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": "1912-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-23", "confidence": "determinate" } ], "quote": "In Qingyang, Gaṅgotpatti (Ganga Saptami) 1912 falls on Tuesday 23 April. Saptamī runs from 08:14 on Tue 23 Apr to 05:55 on Wed 24 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/gangotpatti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-04-27", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23136, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-04-26T23:37:23+08:00", "utc": "1912-04-26T15:37:23Z", "ms": -1820305356912.0713 }, "end": { "local": "1912-04-27T21:54:49+08:00", "utc": "1912-04-27T13:54:49Z", "ms": -1820225111203.996 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-26T23:37:23+08:00", "utc": "1912-04-26T15:37:23Z", "ms": -1820305356912.0713 }, "end": { "local": "1912-04-27T21:54:49+08:00", "utc": "1912-04-27T13:54:49Z", "ms": -1820225111203.996 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-04-27", "window": { "start": { "local": "1912-04-27T06:02:59+08:00", "utc": "1912-04-26T22:02:59Z", "ms": -1820282220798.2163 }, "end": { "local": "1912-04-27T06:02:59+08:00", "utc": "1912-04-26T22:02:59Z", "ms": -1820282220798.2163 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-04-28", "window": { "start": { "local": "1912-04-28T06:01:50+08:00", "utc": "1912-04-27T22:01:50Z", "ms": -1820195890268.1392 }, "end": { "local": "1912-04-28T06:01:50+08:00", "utc": "1912-04-27T22:01:50Z", "ms": -1820195890268.1392 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:37 on Fri 26 Apr to 21:55 on Sat 27 Apr.", "fact": "1912-04-26T15:37:23Z → 1912-04-27T13:54:49Z" }, { "step": "kaala", "text": "Sunrise is at 06:03 on the 27th and 06:02 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 27th and is not on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23136 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Qingyang, 1912: Saturday 27 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": "1912-04-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-27", "confidence": "determinate" } ], "quote": "In Qingyang, Mohinī Ekādaśī 1912 falls on Saturday 27 April. Ekādaśī runs from 23:37 on Fri 26 Apr to 21:55 on Sat 27 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-04-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26245, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1912-04-27T21:54:49+08:00", "utc": "1912-04-27T13:54:49Z", "ms": -1820225111203.996 }, "end": { "local": "1912-04-28T20:28:38+08:00", "utc": "1912-04-28T12:28:38Z", "ms": -1820143882256.897 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-27T21:54:49+08:00", "utc": "1912-04-27T13:54:49Z", "ms": -1820225111203.996 }, "end": { "local": "1912-04-28T20:28:38+08:00", "utc": "1912-04-28T12:28:38Z", "ms": -1820143882256.897 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-04-27", "window": { "start": { "local": "1912-04-27T12:23:23+08:00", "utc": "1912-04-27T04:23:23Z", "ms": -1820259397373.4097 }, "end": { "local": "1912-04-27T13:11:23+08:00", "utc": "1912-04-27T05:11:23Z", "ms": -1820256517373.4097 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-04-28", "window": { "start": { "local": "1912-04-28T12:23:13+08:00", "utc": "1912-04-28T04:23:13Z", "ms": -1820173007067.296 }, "end": { "local": "1912-04-28T13:11:13+08:00", "utc": "1912-04-28T05:11:13Z", "ms": -1820170127067.296 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 21:55 on Sat 27 Apr to 20:29 on Sun 28 Apr.", "fact": "1912-04-27T13:54:49Z → 1912-04-28T12:28:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 27th, 12:23–13:11 on the 28th.", "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 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26245 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Qingyang, 1912: Sunday 28 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-04-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-28", "confidence": "determinate" } ], "quote": "In Qingyang, Paraśurāma Dvādaśī 1912 falls on Sunday 28 April. Dvādaśī runs from 21:55 on Sat 27 Apr to 20:29 on Sun 28 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/parashurama-dvadashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26245, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1912-04-27T21:54:49+08:00", "utc": "1912-04-27T13:54:49Z", "ms": -1820225111203.996 }, "end": { "local": "1912-04-28T20:28:38+08:00", "utc": "1912-04-28T12:28:38Z", "ms": -1820143882256.897 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-27T21:54:49+08:00", "utc": "1912-04-27T13:54:49Z", "ms": -1820225111203.996 }, "end": { "local": "1912-04-28T20:28:38+08:00", "utc": "1912-04-28T12:28:38Z", "ms": -1820143882256.897 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-04-27", "window": { "start": { "local": "1912-04-27T12:23:23+08:00", "utc": "1912-04-27T04:23:23Z", "ms": -1820259397373.4097 }, "end": { "local": "1912-04-27T13:11:23+08:00", "utc": "1912-04-27T05:11:23Z", "ms": -1820256517373.4097 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-04-28", "window": { "start": { "local": "1912-04-28T12:23:13+08:00", "utc": "1912-04-28T04:23:13Z", "ms": -1820173007067.296 }, "end": { "local": "1912-04-28T13:11:13+08:00", "utc": "1912-04-28T05:11:13Z", "ms": -1820170127067.296 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 21:55 on Sat 27 Apr to 20:29 on Sun 28 Apr.", "fact": "1912-04-27T13:54:49Z → 1912-04-28T12:28:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 27th, 12:23–13:11 on the 28th.", "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 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 26245 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Qingyang, 1912: Sunday 28 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rukmini-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-04-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-28", "confidence": "determinate" } ], "quote": "In Qingyang, Rukmiṇī Dvādaśī 1912 falls on Sunday 28 April. Dvādaśī runs from 21:55 on Sat 27 Apr to 20:29 on Sun 28 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/rukmini-dvadashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-04-28", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 696, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-04-28T20:28:38+08:00", "utc": "1912-04-28T12:28:38Z", "ms": -1820143882256.897 }, "end": { "local": "1912-04-29T19:21:50+08:00", "utc": "1912-04-29T11:21:50Z", "ms": -1820061490119.4812 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-28T20:28:38+08:00", "utc": "1912-04-28T12:28:38Z", "ms": -1820143882256.897 }, "end": { "local": "1912-04-29T19:21:50+08:00", "utc": "1912-04-29T11:21:50Z", "ms": -1820061490119.4812 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-04-28", "window": { "start": { "local": "1912-04-28T19:32:36+08:00", "utc": "1912-04-28T11:32:36Z", "ms": -1820147243866.4524 }, "end": { "local": "1912-04-28T20:56:21+08:00", "utc": "1912-04-28T12:56:21Z", "ms": -1820142219183.8533 } }, "covered_min": 28, "window_min": 84, "qualifies": true }, { "local_date": "1912-04-29", "window": { "start": { "local": "1912-04-29T19:33:26+08:00", "utc": "1912-04-29T11:33:26Z", "ms": -1820060793792.7744 }, "end": { "local": "1912-04-29T20:56:55+08:00", "utc": "1912-04-29T12:56:55Z", "ms": -1820055784781.0698 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:29 on Sun 28 Apr to 19:22 on Mon 29 Apr.", "fact": "1912-04-28T12:28:38Z → 1912-04-29T11:21:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:33–20:56 on the 28th, 19:33–20:57 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 28 of 84 minutes on the 28th and 0 of 83 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 696 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Sunday 28 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": "1912-04-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-28", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Sunday 28 April. Trayodaśī runs from 20:29 on Sun 28 Apr to 19:22 on Mon 29 Apr and covers 28 of 84 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-04-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-04-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 696, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-04-29T19:21:50+08:00", "utc": "1912-04-29T11:21:50Z", "ms": -1820061490119.4812 }, "end": { "local": "1912-04-30T18:37:35+08:00", "utc": "1912-04-30T10:37:35Z", "ms": -1819977744720.4058 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-29T19:21:50+08:00", "utc": "1912-04-29T11:21:50Z", "ms": -1820061490119.4812 }, "end": { "local": "1912-04-30T18:37:35+08:00", "utc": "1912-04-30T10:37:35Z", "ms": -1819977744720.4058 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-04-29", "window": { "start": { "local": "1912-04-29T19:33:26+08:00", "utc": "1912-04-29T11:33:26Z", "ms": -1820060793792.7744 }, "end": { "local": "1912-04-29T20:56:55+08:00", "utc": "1912-04-29T12:56:55Z", "ms": -1820055784781.0698 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "1912-04-30", "window": { "start": { "local": "1912-04-30T19:34:16+08:00", "utc": "1912-04-30T11:34:16Z", "ms": -1819974343732.396 }, "end": { "local": "1912-04-30T20:57:30+08:00", "utc": "1912-04-30T12:57:30Z", "ms": -1819969350249.754 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:22 on Mon 29 Apr to 18:38 on Tue 30 Apr.", "fact": "1912-04-29T11:21:50Z → 1912-04-30T10:37:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:33–20:57 on the 29th, 19:34–20:57 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī 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. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 696 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Qingyang, 1912: Monday 29 April.", "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": "1912-04-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-04-29", "confidence": "determinate" } ], "quote": "In Qingyang, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1912 falls on Monday 29 April. Caturdaśī runs from 19:22 on Mon 29 Apr to 18:38 on Tue 30 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/nrisimha-chaturdashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18498, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-04-30T18:37:35+08:00", "utc": "1912-04-30T10:37:35Z", "ms": -1819977744720.4058 }, "end": { "local": "1912-05-01T18:19:05+08:00", "utc": "1912-05-01T10:19:05Z", "ms": -1819892455239.1326 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-30T18:37:35+08:00", "utc": "1912-04-30T10:37:35Z", "ms": -1819977744720.4058 }, "end": { "local": "1912-05-01T18:19:05+08:00", "utc": "1912-05-01T10:19:05Z", "ms": -1819892455239.1326 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-04-30", "window": { "start": { "local": "1912-04-30T12:22:55+08:00", "utc": "1912-04-30T04:22:55Z", "ms": -1820000224968.6929 }, "end": { "local": "1912-04-30T13:10:55+08:00", "utc": "1912-04-30T05:10:55Z", "ms": -1819997344968.6929 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-05-01", "window": { "start": { "local": "1912-05-01T12:22:47+08:00", "utc": "1912-05-01T04:22:47Z", "ms": -1819913833151.7854 }, "end": { "local": "1912-05-01T13:10:47+08:00", "utc": "1912-05-01T05:10:47Z", "ms": -1819910953151.7854 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:38 on Tue 30 Apr to 18:19 on Wed 1 May.", "fact": "1912-04-30T10:37:35Z → 1912-05-01T10:19:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 30th, 12:23–13:11 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18498 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Qingyang, 1912: Wednesday 1 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": "1912-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-01", "confidence": "determinate" } ], "quote": "In Qingyang, Buddha Pūrṇimā 1912 falls on Wednesday 1 May. Pūrṇimā runs from 18:38 on Tue 30 Apr to 18:19 on Wed 1 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/buddha-purnima", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18498, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-04-30T18:37:35+08:00", "utc": "1912-04-30T10:37:35Z", "ms": -1819977744720.4058 }, "end": { "local": "1912-05-01T18:19:05+08:00", "utc": "1912-05-01T10:19:05Z", "ms": -1819892455239.1326 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1912-04-30T18:37:35+08:00", "utc": "1912-04-30T10:37:35Z", "ms": -1819977744720.4058 }, "end": { "local": "1912-05-01T18:19:05+08:00", "utc": "1912-05-01T10:19:05Z", "ms": -1819892455239.1326 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-04-30", "window": { "start": { "local": "1912-04-30T12:22:55+08:00", "utc": "1912-04-30T04:22:55Z", "ms": -1820000224968.6929 }, "end": { "local": "1912-04-30T13:10:55+08:00", "utc": "1912-04-30T05:10:55Z", "ms": -1819997344968.6929 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-05-01", "window": { "start": { "local": "1912-05-01T12:22:47+08:00", "utc": "1912-05-01T04:22:47Z", "ms": -1819913833151.7854 }, "end": { "local": "1912-05-01T13:10:47+08:00", "utc": "1912-05-01T05:10:47Z", "ms": -1819910953151.7854 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 18:38 on Tue 30 Apr to 18:19 on Wed 1 May.", "fact": "1912-04-30T10:37:35Z → 1912-05-01T10:19:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 30th, 12:23–13:11 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 30th and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18498 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Qingyang, 1912: Wednesday 1 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": "1912-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-01", "confidence": "determinate" } ], "quote": "In Qingyang, Sampat Gaurī Vrata 1912 falls on Wednesday 1 May. Pūrṇimā runs from 18:38 on Tue 30 Apr to 18:19 on Wed 1 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/sampat-gauri-vrata", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-05-04", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6323, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-05-04T20:21:13+08:00", "utc": "1912-05-04T12:21:13Z", "ms": -1819625927322.8318 }, "end": { "local": "1912-05-05T22:01:27+08:00", "utc": "1912-05-05T14:01:27Z", "ms": -1819533512564.7327 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-04T20:21:13+08:00", "utc": "1912-05-04T12:21:13Z", "ms": -1819625927322.8318 }, "end": { "local": "1912-05-05T22:01:27+08:00", "utc": "1912-05-05T14:01:27Z", "ms": -1819533512564.7327 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-05-04", "window": { "start": { "local": "1912-05-04T22:50:55+08:00", "utc": "1912-05-04T14:50:55Z", "ms": -1819616944508.9175 }, "end": { "local": "1912-05-04T22:50:55+08:00", "utc": "1912-05-04T14:50:55Z", "ms": -1819616944508.9175 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-05-05", "window": { "start": { "local": "1912-05-05T23:46:50+08:00", "utc": "1912-05-05T15:46:50Z", "ms": -1819527189961.3818 }, "end": { "local": "1912-05-05T23:46:50+08:00", "utc": "1912-05-05T15:46:50Z", "ms": -1819527189961.3818 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:21 on Sat 4 May to 22:01 on Sun 5 May.", "fact": "1912-05-04T12:21:13Z → 1912-05-05T14:01:27Z" }, { "step": "kaala", "text": "Moonrise is at 22:51 on the 4th and 23:47 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6323 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Saturday 4 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": "1912-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-04", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Saturday 4 May. Caturthī runs from 20:21 on Sat 4 May to 22:01 on Sun 5 May and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-05-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-05-13", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15717, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-05-12T10:09:31+08:00", "utc": "1912-05-12T02:09:31Z", "ms": -1818971428574.5166 }, "end": { "local": "1912-05-13T10:46:44+08:00", "utc": "1912-05-13T02:46:44Z", "ms": -1818882795506.475 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-12T10:09:31+08:00", "utc": "1912-05-12T02:09:31Z", "ms": -1818971428574.5166 }, "end": { "local": "1912-05-13T10:46:44+08:00", "utc": "1912-05-13T02:46:44Z", "ms": -1818882795506.475 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-05-12", "window": { "start": { "local": "1912-05-12T05:47:35+08:00", "utc": "1912-05-11T21:47:35Z", "ms": -1818987145484.2185 }, "end": { "local": "1912-05-12T05:47:35+08:00", "utc": "1912-05-11T21:47:35Z", "ms": -1818987145484.2185 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-05-13", "window": { "start": { "local": "1912-05-13T05:46:43+08:00", "utc": "1912-05-12T21:46:43Z", "ms": -1818900797065.3413 }, "end": { "local": "1912-05-13T05:46:43+08:00", "utc": "1912-05-12T21:46:43Z", "ms": -1818900797065.3413 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:10 on Sun 12 May to 10:47 on Mon 13 May.", "fact": "1912-05-12T02:09:31Z → 1912-05-13T02:46:44Z" }, { "step": "kaala", "text": "Sunrise is at 05:48 on the 12th and 05:47 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 12th and is 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 15717 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Qingyang, 1912: Monday 13 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-05-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-13", "confidence": "determinate" } ], "quote": "In Qingyang, Aparā Ekādaśī 1912 falls on Monday 13 May. Ekādaśī runs from 10:10 on Sun 12 May to 10:47 on Mon 13 May and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-05-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-05-14", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32765, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-05-14T10:39:45+08:00", "utc": "1912-05-14T02:39:45Z", "ms": -1818796815025.8833 }, "end": { "local": "1912-05-15T09:48:59+08:00", "utc": "1912-05-15T01:48:59Z", "ms": -1818713461369.649 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-14T10:39:45+08:00", "utc": "1912-05-14T02:39:45Z", "ms": -1818796815025.8833 }, "end": { "local": "1912-05-15T09:48:59+08:00", "utc": "1912-05-15T01:48:59Z", "ms": -1818713461369.649 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-05-14", "window": { "start": { "local": "1912-05-14T19:45:50+08:00", "utc": "1912-05-14T11:45:50Z", "ms": -1818764050404.054 }, "end": { "local": "1912-05-14T21:05:44+08:00", "utc": "1912-05-14T13:05:44Z", "ms": -1818759256482.671 } }, "covered_min": 80, "window_min": 80, "qualifies": true }, { "local_date": "1912-05-15", "window": { "start": { "local": "1912-05-15T19:46:38+08:00", "utc": "1912-05-15T11:46:38Z", "ms": -1818677602144.8477 }, "end": { "local": "1912-05-15T21:06:19+08:00", "utc": "1912-05-15T13:06:19Z", "ms": -1818672820965.4644 } }, "covered_min": 0, "window_min": 80, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:40 on Tue 14 May to 09:49 on Wed 15 May.", "fact": "1912-05-14T02:39:45Z → 1912-05-15T01:48:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:46–21:06 on the 14th, 19:47–21:06 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 80 of 80 minutes on the 14th and 0 of 80 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 32765 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Tuesday 14 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": "1912-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-14", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Tuesday 14 May. Trayodaśī runs from 10:40 on Tue 14 May to 09:49 on Wed 15 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-05-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-05-15", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25721, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-05-15T09:48:59+08:00", "utc": "1912-05-15T01:48:59Z", "ms": -1818713461369.649 }, "end": { "local": "1912-05-16T08:18:08+08:00", "utc": "1912-05-16T00:18:08Z", "ms": -1818632512078.3635 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-15T09:48:59+08:00", "utc": "1912-05-15T01:48:59Z", "ms": -1818713461369.649 }, "end": { "local": "1912-05-16T08:18:08+08:00", "utc": "1912-05-16T00:18:08Z", "ms": -1818632512078.3635 } }, "kaala": "nishita", "days": [ { "local_date": "1912-05-14", "window": { "start": { "local": "1912-05-15T00:21:27+08:00", "utc": "1912-05-14T16:21:27Z", "ms": -1818747513198.8672 }, "end": { "local": "1912-05-15T01:09:27+08:00", "utc": "1912-05-14T17:09:27Z", "ms": -1818744633198.8672 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-05-15", "window": { "start": { "local": "1912-05-16T00:21:27+08:00", "utc": "1912-05-15T16:21:27Z", "ms": -1818661112722.1606 }, "end": { "local": "1912-05-16T01:09:27+08:00", "utc": "1912-05-15T17:09:27Z", "ms": -1818658232722.1606 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:49 on Wed 15 May to 08:18 on Thu 16 May.", "fact": "1912-05-15T01:48:59Z → 1912-05-16T00:18:08Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:21–01:09 on the 14th, 00:21–01:09 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 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25721 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Wednesday 15 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-15", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Wednesday 15 May. Caturdaśī runs from 09:49 on Wed 15 May to 08:18 on Thu 16 May and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-05-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31560, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1912-05-19T00:53:36+08:00", "utc": "1912-05-18T16:53:36Z", "ms": -1818399983832.1997 }, "end": { "local": "1912-05-19T21:55:55+08:00", "utc": "1912-05-19T13:55:55Z", "ms": -1818324244676.7996 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-19T00:53:36+08:00", "utc": "1912-05-18T16:53:36Z", "ms": -1818399983832.1997 }, "end": { "local": "1912-05-19T21:55:55+08:00", "utc": "1912-05-19T13:55:55Z", "ms": -1818324244676.7996 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-05-18", "window": { "start": { "local": "1912-05-18T12:21:54+08:00", "utc": "1912-05-18T04:21:54Z", "ms": -1818445086416.289 }, "end": { "local": "1912-05-18T13:09:54+08:00", "utc": "1912-05-18T05:09:54Z", "ms": -1818442206416.289 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-05-19", "window": { "start": { "local": "1912-05-19T12:21:56+08:00", "utc": "1912-05-19T04:21:56Z", "ms": -1818358684431.3752 }, "end": { "local": "1912-05-19T13:09:56+08:00", "utc": "1912-05-19T05:09:56Z", "ms": -1818355804431.3752 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 00:54 on Sun 19 May to 21:56 on Sun 19 May.", "fact": "1912-05-18T16:53:36Z → 1912-05-19T13:55:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 18th, 12:22–13:10 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 31560 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Qingyang, 1912: Sunday 19 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": "1912-05-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-19", "confidence": "determinate" } ], "quote": "In Qingyang, Rambhā Tṛtīyā 1912 falls on Sunday 19 May. Tṛtīyā runs from 00:54 on Sun 19 May to 21:56 on Sun 19 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/rambha-tritiya", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-05-20", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20866, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-05-19T21:55:55+08:00", "utc": "1912-05-19T13:55:55Z", "ms": -1818324244676.7996 }, "end": { "local": "1912-05-20T18:57:44+08:00", "utc": "1912-05-20T10:57:44Z", "ms": -1818248535933.7595 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-19T21:55:55+08:00", "utc": "1912-05-19T13:55:55Z", "ms": -1818324244676.7996 }, "end": { "local": "1912-05-20T18:57:44+08:00", "utc": "1912-05-20T10:57:44Z", "ms": -1818248535933.7595 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-05-19", "window": { "start": { "local": "1912-05-19T12:21:56+08:00", "utc": "1912-05-19T04:21:56Z", "ms": -1818358684431.3752 }, "end": { "local": "1912-05-19T13:09:56+08:00", "utc": "1912-05-19T05:09:56Z", "ms": -1818355804431.3752 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-05-20", "window": { "start": { "local": "1912-05-20T12:21:58+08:00", "utc": "1912-05-20T04:21:58Z", "ms": -1818272281913.723 }, "end": { "local": "1912-05-20T13:09:58+08:00", "utc": "1912-05-20T05:09:58Z", "ms": -1818269401913.723 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:56 on Sun 19 May to 18:58 on Mon 20 May.", "fact": "1912-05-19T13:55:55Z → 1912-05-20T10:57:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 19th, 12:22–13:10 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20866 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1912: Monday 20 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": "1912-05-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-20", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1912 falls on Monday 20 May. Caturthī runs from 21:56 on Sun 19 May to 18:58 on Mon 20 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-05-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1174, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1912-05-21T16:06:46+08:00", "utc": "1912-05-21T08:06:46Z", "ms": -1818172394037.627 }, "end": { "local": "1912-05-22T13:29:39+08:00", "utc": "1912-05-22T05:29:39Z", "ms": -1818095420911.4102 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-21T16:06:46+08:00", "utc": "1912-05-21T08:06:46Z", "ms": -1818172394037.627 }, "end": { "local": "1912-05-22T13:29:39+08:00", "utc": "1912-05-22T05:29:39Z", "ms": -1818095420911.4102 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-05-21", "window": { "start": { "local": "1912-05-21T12:22:01+08:00", "utc": "1912-05-21T04:22:01Z", "ms": -1818185878874.3232 }, "end": { "local": "1912-05-21T13:10:01+08:00", "utc": "1912-05-21T05:10:01Z", "ms": -1818182998874.3232 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-05-22", "window": { "start": { "local": "1912-05-22T12:22:05+08:00", "utc": "1912-05-22T04:22:05Z", "ms": -1818099475323.7861 }, "end": { "local": "1912-05-22T13:10:05+08:00", "utc": "1912-05-22T05:10:05Z", "ms": -1818096595323.7861 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 16:07 on Tue 21 May to 13:30 on Wed 22 May.", "fact": "1912-05-21T08:06:46Z → 1912-05-22T05:29:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 21st, 12:22–13:10 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī 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 1174 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Qingyang, 1912: Wednesday 22 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": "1912-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-22", "confidence": "determinate" } ], "quote": "In Qingyang, Araṇya Gaurī Vrata 1912 falls on Wednesday 22 May. Ṣaṣṭhī runs from 16:07 on Tue 21 May to 13:30 on Wed 22 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/aranya-gauri-vrata", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1174, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1912-05-21T16:06:46+08:00", "utc": "1912-05-21T08:06:46Z", "ms": -1818172394037.627 }, "end": { "local": "1912-05-22T13:29:39+08:00", "utc": "1912-05-22T05:29:39Z", "ms": -1818095420911.4102 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-21T16:06:46+08:00", "utc": "1912-05-21T08:06:46Z", "ms": -1818172394037.627 }, "end": { "local": "1912-05-22T13:29:39+08:00", "utc": "1912-05-22T05:29:39Z", "ms": -1818095420911.4102 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-05-21", "window": { "start": { "local": "1912-05-21T12:22:01+08:00", "utc": "1912-05-21T04:22:01Z", "ms": -1818185878874.3232 }, "end": { "local": "1912-05-21T13:10:01+08:00", "utc": "1912-05-21T05:10:01Z", "ms": -1818182998874.3232 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-05-22", "window": { "start": { "local": "1912-05-22T12:22:05+08:00", "utc": "1912-05-22T04:22:05Z", "ms": -1818099475323.7861 }, "end": { "local": "1912-05-22T13:10:05+08:00", "utc": "1912-05-22T05:10:05Z", "ms": -1818096595323.7861 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 16:07 on Tue 21 May to 13:30 on Wed 22 May.", "fact": "1912-05-21T08:06:46Z → 1912-05-22T05:29:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 21st, 12:22–13:10 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī 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: purvaviddha → only-day · margin 1174 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Qingyang, 1912: Wednesday 22 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": "1912-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-22", "confidence": "determinate" } ], "quote": "In Qingyang, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1912 falls on Wednesday 22 May. Ṣaṣṭhī runs from 16:07 on Tue 21 May to 13:30 on Wed 22 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/skanda-shashthi-jyaishtha", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-05-27", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1520, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-05-26T06:41:37+08:00", "utc": "1912-05-25T22:41:37Z", "ms": -1817774302532.133 }, "end": { "local": "1912-05-27T06:02:36+08:00", "utc": "1912-05-26T22:02:36Z", "ms": -1817690244085.5664 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-26T06:41:37+08:00", "utc": "1912-05-25T22:41:37Z", "ms": -1817774302532.133 }, "end": { "local": "1912-05-27T06:02:36+08:00", "utc": "1912-05-26T22:02:36Z", "ms": -1817690244085.5664 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-05-26", "window": { "start": { "local": "1912-05-26T05:37:47+08:00", "utc": "1912-05-25T21:37:47Z", "ms": -1817778133248.2996 }, "end": { "local": "1912-05-26T05:37:47+08:00", "utc": "1912-05-25T21:37:47Z", "ms": -1817778133248.2996 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-05-27", "window": { "start": { "local": "1912-05-27T05:37:16+08:00", "utc": "1912-05-26T21:37:16Z", "ms": -1817691763599.2305 }, "end": { "local": "1912-05-27T05:37:16+08:00", "utc": "1912-05-26T21:37:16Z", "ms": -1817691763599.2305 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:42 on Sun 26 May to 06:03 on Mon 27 May.", "fact": "1912-05-25T22:41:37Z → 1912-05-26T22:02:36Z" }, { "step": "kaala", "text": "Sunrise is at 05:38 on the 26th and 05:37 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 26th and is on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1520 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Qingyang, 1912: Monday 27 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": "1912-05-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-27", "confidence": "determinate" } ], "quote": "In Qingyang, Nirjalā Ekādaśī 1912 falls on Monday 27 May. Ekādaśī runs from 06:42 on Sun 26 May to 06:03 on Mon 27 May and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-05-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22794, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1912-05-27T06:02:36+08:00", "utc": "1912-05-26T22:02:36Z", "ms": -1817690244085.5664 }, "end": { "local": "1912-05-28T05:48:25+08:00", "utc": "1912-05-27T21:48:25Z", "ms": -1817604695011.643 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-27T06:02:36+08:00", "utc": "1912-05-26T22:02:36Z", "ms": -1817690244085.5664 }, "end": { "local": "1912-05-28T05:48:25+08:00", "utc": "1912-05-27T21:48:25Z", "ms": -1817604695011.643 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-05-27", "window": { "start": { "local": "1912-05-27T12:22:30+08:00", "utc": "1912-05-27T04:22:30Z", "ms": -1817667450235.7734 }, "end": { "local": "1912-05-27T13:10:30+08:00", "utc": "1912-05-27T05:10:30Z", "ms": -1817664570235.7734 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-05-28", "window": { "start": { "local": "1912-05-28T12:22:36+08:00", "utc": "1912-05-28T04:22:36Z", "ms": -1817581043812.9 }, "end": { "local": "1912-05-28T13:10:36+08:00", "utc": "1912-05-28T05:10:36Z", "ms": -1817578163812.9 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 06:03 on Mon 27 May to 05:48 on Tue 28 May.", "fact": "1912-05-26T22:02:36Z → 1912-05-27T21:48:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 27th, 12:23–13:11 on the 28th.", "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 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 22794 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Qingyang, 1912: Monday 27 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": "1912-05-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-27", "confidence": "determinate" } ], "quote": "In Qingyang, Śrī Rāma Dvādaśī 1912 falls on Monday 27 May. Dvādaśī runs from 06:03 on Mon 27 May to 05:48 on Tue 28 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/shri-rama-dvadashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-05-28", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30913, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-05-28T05:48:25+08:00", "utc": "1912-05-27T21:48:25Z", "ms": -1817604695011.643 }, "end": { "local": "1912-05-29T05:58:23+08:00", "utc": "1912-05-28T21:58:23Z", "ms": -1817517697472.8833 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-28T05:48:25+08:00", "utc": "1912-05-27T21:48:25Z", "ms": -1817604695011.643 }, "end": { "local": "1912-05-29T05:58:23+08:00", "utc": "1912-05-28T21:58:23Z", "ms": -1817517697472.8833 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-05-27", "window": { "start": { "local": "1912-05-27T19:55:43+08:00", "utc": "1912-05-27T11:55:43Z", "ms": -1817640256872.3162 }, "end": { "local": "1912-05-27T21:13:12+08:00", "utc": "1912-05-27T13:13:12Z", "ms": -1817635608265.546 } }, "covered_min": 0, "window_min": 77, "qualifies": false }, { "local_date": "1912-05-28", "window": { "start": { "local": "1912-05-28T19:56:25+08:00", "utc": "1912-05-28T11:56:25Z", "ms": -1817553815304.2612 }, "end": { "local": "1912-05-28T21:13:44+08:00", "utc": "1912-05-28T13:13:44Z", "ms": -1817549175850.7366 } }, "covered_min": 77, "window_min": 77, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:48 on Tue 28 May to 05:58 on Wed 29 May.", "fact": "1912-05-27T21:48:25Z → 1912-05-28T21:58:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:56–21:13 on the 27th, 19:56–21:14 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 77 minutes on the 27th and 77 of 77 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 30913 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Tuesday 28 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": "1912-05-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-28", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Tuesday 28 May. Trayodaśī runs from 05:48 on Tue 28 May to 05:58 on Wed 29 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-05-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33466, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-05-30T06:32:02+08:00", "utc": "1912-05-29T22:32:02Z", "ms": -1817429278192.0593 }, "end": { "local": "1912-05-31T07:29:11+08:00", "utc": "1912-05-30T23:29:11Z", "ms": -1817339448707.9163 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1912-05-30T06:32:02+08:00", "utc": "1912-05-29T22:32:02Z", "ms": -1817429278192.0593 }, "end": { "local": "1912-05-31T07:29:11+08:00", "utc": "1912-05-30T23:29:11Z", "ms": -1817339448707.9163 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-05-29", "window": { "start": { "local": "1912-05-29T19:57:06+08:00", "utc": "1912-05-29T11:57:06Z", "ms": -1817467374482.0815 }, "end": { "local": "1912-05-29T21:14:16+08:00", "utc": "1912-05-29T13:14:16Z", "ms": -1817462743862.0066 } }, "covered_min": 0, "window_min": 77, "qualifies": false }, { "local_date": "1912-05-30", "window": { "start": { "local": "1912-05-30T19:57:46+08:00", "utc": "1912-05-30T11:57:46Z", "ms": -1817380934436.8772 }, "end": { "local": "1912-05-30T21:14:48+08:00", "utc": "1912-05-30T13:14:48Z", "ms": -1817376312324.8826 } }, "covered_min": 77, "window_min": 77, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:32 on Thu 30 May to 07:29 on Fri 31 May.", "fact": "1912-05-29T22:32:02Z → 1912-05-30T23:29:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:57–21:14 on the 29th, 19:58–21:15 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 77 minutes on the 29th and 77 of 77 on the 30th.", "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 33466 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Qingyang, 1912: Thursday 30 May.", "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": "1912-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-05-30", "confidence": "determinate" } ], "quote": "In Qingyang, Vaṭa Sāvitrī Vrata 1912 falls on Thursday 30 May. Pūrṇimā runs from 06:32 on Thu 30 May to 07:29 on Fri 31 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/vata-savitri-vrata", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-06-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-06-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32391, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-06-03T12:34:32+08:00", "utc": "1912-06-03T04:34:32Z", "ms": -1817061928192.4075 }, "end": { "local": "1912-06-04T14:51:42+08:00", "utc": "1912-06-04T06:51:42Z", "ms": -1816967298333.798 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-06-03T12:34:32+08:00", "utc": "1912-06-03T04:34:32Z", "ms": -1817061928192.4075 }, "end": { "local": "1912-06-04T14:51:42+08:00", "utc": "1912-06-04T06:51:42Z", "ms": -1816967298333.798 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-06-03", "window": { "start": { "local": "1912-06-03T23:13:55+08:00", "utc": "1912-06-03T15:13:55Z", "ms": -1817023565312.4026 }, "end": { "local": "1912-06-03T23:13:55+08:00", "utc": "1912-06-03T15:13:55Z", "ms": -1817023565312.4026 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-06-04", "window": { "start": { "local": "1912-06-04T23:51:33+08:00", "utc": "1912-06-04T15:51:33Z", "ms": -1816934906913.164 }, "end": { "local": "1912-06-04T23:51:33+08:00", "utc": "1912-06-04T15:51:33Z", "ms": -1816934906913.164 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:35 on Mon 3 Jun to 14:52 on Tue 4 Jun.", "fact": "1912-06-03T04:34:32Z → 1912-06-04T06:51:42Z" }, { "step": "kaala", "text": "Moonrise is at 23:14 on the 3rd and 23:52 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32391 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Monday 3 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": "1912-06-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-06-03", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Monday 3 June. Caturthī runs from 12:35 on Mon 3 Jun to 14:52 on Tue 4 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-06-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-06-11", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-06-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18114, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-06-11T00:31:08+08:00", "utc": "1912-06-10T16:31:08Z", "ms": -1816414132137.9517 }, "end": { "local": "1912-06-11T23:54:26+08:00", "utc": "1912-06-11T15:54:26Z", "ms": -1816329934264.69 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-06-11T00:31:08+08:00", "utc": "1912-06-10T16:31:08Z", "ms": -1816414132137.9517 }, "end": { "local": "1912-06-11T23:54:26+08:00", "utc": "1912-06-11T15:54:26Z", "ms": -1816329934264.69 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-06-11", "window": { "start": { "local": "1912-06-11T05:33:02+08:00", "utc": "1912-06-10T21:33:02Z", "ms": -1816396018357.925 }, "end": { "local": "1912-06-11T05:33:02+08:00", "utc": "1912-06-10T21:33:02Z", "ms": -1816396018357.925 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-06-12", "window": { "start": { "local": "1912-06-12T05:32:58+08:00", "utc": "1912-06-11T21:32:58Z", "ms": -1816309621789.1619 }, "end": { "local": "1912-06-12T05:32:58+08:00", "utc": "1912-06-11T21:32:58Z", "ms": -1816309621789.1619 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:31 on Tue 11 Jun to 23:54 on Tue 11 Jun.", "fact": "1912-06-10T16:31:08Z → 1912-06-11T15:54:26Z" }, { "step": "kaala", "text": "Sunrise is at 05:33 on the 11th and 05:33 on the 12th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 11th and is not on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18114 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Qingyang, 1912: Tuesday 11 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": "1912-06-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-06-11", "confidence": "determinate" } ], "quote": "In Qingyang, Yoginī Ekādaśī 1912 falls on Tuesday 11 June. Ekādaśī runs from 00:31 on Tue 11 Jun to 23:54 on Tue 11 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-06-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-06-13", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 912, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-06-12T22:29:23+08:00", "utc": "1912-06-12T14:29:23Z", "ms": -1816248636678.7495 }, "end": { "local": "1912-06-13T20:20:38+08:00", "utc": "1912-06-13T12:20:38Z", "ms": -1816169961899.5894 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-06-12T22:29:23+08:00", "utc": "1912-06-12T14:29:23Z", "ms": -1816248636678.7495 }, "end": { "local": "1912-06-13T20:20:38+08:00", "utc": "1912-06-13T12:20:38Z", "ms": -1816169961899.5894 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-06-12", "window": { "start": { "local": "1912-06-12T20:05:00+08:00", "utc": "1912-06-12T12:05:00Z", "ms": -1816257299695.6926 }, "end": { "local": "1912-06-12T21:20:44+08:00", "utc": "1912-06-12T13:20:44Z", "ms": -1816252756209.2007 } }, "covered_min": 0, "window_min": 76, "qualifies": false }, { "local_date": "1912-06-13", "window": { "start": { "local": "1912-06-13T20:05:26+08:00", "utc": "1912-06-13T12:05:26Z", "ms": -1816170874079.4136 }, "end": { "local": "1912-06-13T21:21:06+08:00", "utc": "1912-06-13T13:21:06Z", "ms": -1816166334021.5947 } }, "covered_min": 15, "window_min": 76, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:29 on Wed 12 Jun to 20:21 on Thu 13 Jun.", "fact": "1912-06-12T14:29:23Z → 1912-06-13T12:20:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:05–21:21 on the 12th, 20:05–21:21 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 76 minutes on the 12th and 15 of 76 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 912 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Thursday 13 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": "1912-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-06-13", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Thursday 13 June. Trayodaśī runs from 22:29 on Wed 12 Jun to 20:21 on Thu 13 Jun and covers 15 of 76 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-06-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-06-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14673, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-06-13T20:20:38+08:00", "utc": "1912-06-13T12:20:38Z", "ms": -1816169961899.5894 }, "end": { "local": "1912-06-14T17:35:33+08:00", "utc": "1912-06-14T09:35:33Z", "ms": -1816093467103.9866 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-06-13T20:20:38+08:00", "utc": "1912-06-13T12:20:38Z", "ms": -1816169961899.5894 }, "end": { "local": "1912-06-14T17:35:33+08:00", "utc": "1912-06-14T09:35:33Z", "ms": -1816093467103.9866 } }, "kaala": "nishita", "days": [ { "local_date": "1912-06-13", "window": { "start": { "local": "1912-06-14T00:25:11+08:00", "utc": "1912-06-13T16:25:11Z", "ms": -1816155288862.5928 }, "end": { "local": "1912-06-14T01:13:11+08:00", "utc": "1912-06-13T17:13:11Z", "ms": -1816152408862.5928 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-06-14", "window": { "start": { "local": "1912-06-15T00:25:24+08:00", "utc": "1912-06-14T16:25:24Z", "ms": -1816068875931.7317 }, "end": { "local": "1912-06-15T01:13:24+08:00", "utc": "1912-06-14T17:13:24Z", "ms": -1816065995931.7317 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:21 on Thu 13 Jun to 17:36 on Fri 14 Jun.", "fact": "1912-06-13T12:20:38Z → 1912-06-14T09:35:33Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:25–01:13 on the 13th, 00:25–01:13 on the 14th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14673 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Thursday 13 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": "1912-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-06-13", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Thursday 13 June. Caturdaśī runs from 20:21 on Thu 13 Jun to 17:36 on Fri 14 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-06-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-06-18", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-06-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31096, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-06-18T03:47:57+08:00", "utc": "1912-06-17T19:47:57Z", "ms": -1815797522586.332 }, "end": { "local": "1912-06-19T00:30:52+08:00", "utc": "1912-06-18T16:30:52Z", "ms": -1815722947828.6956 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-06-18T03:47:57+08:00", "utc": "1912-06-17T19:47:57Z", "ms": -1815797522586.332 }, "end": { "local": "1912-06-19T00:30:52+08:00", "utc": "1912-06-18T16:30:52Z", "ms": -1815722947828.6956 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-06-18", "window": { "start": { "local": "1912-06-18T12:26:13+08:00", "utc": "1912-06-18T04:26:13Z", "ms": -1815766427014.5632 }, "end": { "local": "1912-06-18T13:14:13+08:00", "utc": "1912-06-18T05:14:13Z", "ms": -1815763547014.5632 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-06-19", "window": { "start": { "local": "1912-06-19T12:26:26+08:00", "utc": "1912-06-19T04:26:26Z", "ms": -1815680014423.6846 }, "end": { "local": "1912-06-19T13:14:26+08:00", "utc": "1912-06-19T05:14:26Z", "ms": -1815677134423.6846 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:48 on Tue 18 Jun to 00:31 on Wed 19 Jun.", "fact": "1912-06-17T19:47:57Z → 1912-06-18T16:30:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 18th, 12:26–13:14 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31096 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1912: Tuesday 18 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": "1912-06-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-06-18", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1912 falls on Tuesday 18 June. Caturthī runs from 03:48 on Tue 18 Jun to 00:31 on Wed 19 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-06-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-06-25", "festival": "ekadashi", "name": "Śukla Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-06-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35428, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-06-24T15:24:51+08:00", "utc": "1912-06-24T07:24:51Z", "ms": -1815237309450.0771 }, "end": { "local": "1912-06-25T15:52:18+08:00", "utc": "1912-06-25T07:52:18Z", "ms": -1815149262435.2327 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-06-24T15:24:51+08:00", "utc": "1912-06-24T07:24:51Z", "ms": -1815237309450.0771 }, "end": { "local": "1912-06-25T15:52:18+08:00", "utc": "1912-06-25T07:52:18Z", "ms": -1815149262435.2327 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-06-24", "window": { "start": { "local": "1912-06-24T05:34:22+08:00", "utc": "1912-06-23T21:34:22Z", "ms": -1815272737938.35 }, "end": { "local": "1912-06-24T05:34:22+08:00", "utc": "1912-06-23T21:34:22Z", "ms": -1815272737938.35 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-06-25", "window": { "start": { "local": "1912-06-25T05:34:39+08:00", "utc": "1912-06-24T21:34:39Z", "ms": -1815186321209.071 }, "end": { "local": "1912-06-25T05:34:39+08:00", "utc": "1912-06-24T21:34:39Z", "ms": -1815186321209.071 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:25 on Mon 24 Jun to 15:52 on Tue 25 Jun.", "fact": "1912-06-24T07:24:51Z → 1912-06-25T07:52:18Z" }, { "step": "kaala", "text": "Sunrise is at 05:34 on the 24th and 05:35 on the 25th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 24th and is on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35428 s" }, { "step": "ruling", "text": "Śukla Ekādaśī, Qingyang, 1912: Tuesday 25 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": "1912-06-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-06-25", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Ekādaśī 1912 falls on Tuesday 25 June. Ekādaśī runs from 15:25 on Mon 24 Jun to 15:52 on Tue 25 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-06-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-06-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-06-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7521, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-06-26T16:46:30+08:00", "utc": "1912-06-26T08:46:30Z", "ms": -1815059610214.4165 }, "end": { "local": "1912-06-27T18:03:32+08:00", "utc": "1912-06-27T10:03:32Z", "ms": -1814968587855.4233 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-06-26T16:46:30+08:00", "utc": "1912-06-26T08:46:30Z", "ms": -1815059610214.4165 }, "end": { "local": "1912-06-27T18:03:32+08:00", "utc": "1912-06-27T10:03:32Z", "ms": -1814968587855.4233 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-06-26", "window": { "start": { "local": "1912-06-26T20:08:49+08:00", "utc": "1912-06-26T12:08:49Z", "ms": -1815047471417.6562 }, "end": { "local": "1912-06-26T21:24:20+08:00", "utc": "1912-06-26T13:24:20Z", "ms": -1815042939711.5488 } }, "covered_min": 76, "window_min": 76, "qualifies": true }, { "local_date": "1912-06-27", "window": { "start": { "local": "1912-06-27T20:08:53+08:00", "utc": "1912-06-27T12:08:53Z", "ms": -1814961066786.2656 }, "end": { "local": "1912-06-27T21:24:27+08:00", "utc": "1912-06-27T13:24:27Z", "ms": -1814956532923.6765 } }, "covered_min": 0, "window_min": 76, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:46 on Wed 26 Jun to 18:04 on Thu 27 Jun.", "fact": "1912-06-26T08:46:30Z → 1912-06-27T10:03:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:09–21:24 on the 26th, 20:09–21:24 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 76 of 76 minutes on the 26th and 0 of 76 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7521 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Wednesday 26 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": "1912-06-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-06-26", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Wednesday 26 June. Trayodaśī runs from 16:46 on Wed 26 Jun to 18:04 on Thu 27 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-06-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-07-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21592, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-07-03T04:24:20+08:00", "utc": "1912-07-02T20:24:20Z", "ms": -1814499339537.9473 }, "end": { "local": "1912-07-04T06:48:33+08:00", "utc": "1912-07-03T22:48:33Z", "ms": -1814404287218.2168 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-03T04:24:20+08:00", "utc": "1912-07-02T20:24:20Z", "ms": -1814499339537.9473 }, "end": { "local": "1912-07-04T06:48:33+08:00", "utc": "1912-07-03T22:48:33Z", "ms": -1814404287218.2168 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-07-02", "window": { "start": { "local": "1912-07-02T22:24:28+08:00", "utc": "1912-07-02T14:24:28Z", "ms": -1814520931928.0542 }, "end": { "local": "1912-07-02T22:24:28+08:00", "utc": "1912-07-02T14:24:28Z", "ms": -1814520931928.0542 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-07-03", "window": { "start": { "local": "1912-07-03T22:53:23+08:00", "utc": "1912-07-03T14:53:23Z", "ms": -1814432797218.8652 }, "end": { "local": "1912-07-03T22:53:23+08:00", "utc": "1912-07-03T14:53:23Z", "ms": -1814432797218.8652 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:24 on Wed 3 Jul to 06:49 on Thu 4 Jul.", "fact": "1912-07-02T20:24:20Z → 1912-07-03T22:48:33Z" }, { "step": "kaala", "text": "Moonrise is at 22:24 on the 2nd and 22:53 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 21592 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Wednesday 3 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": "1912-07-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-03", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Wednesday 3 July. Caturthī runs from 04:24 on Wed 3 Jul to 06:49 on Thu 4 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-07-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-07-11", "festival": "ekadashi", "name": "Kṛṣṇa Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16300, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-07-10T11:59:23+08:00", "utc": "1912-07-10T03:59:23Z", "ms": -1813867236763.5112 }, "end": { "local": "1912-07-11T10:13:35+08:00", "utc": "1912-07-11T02:13:35Z", "ms": -1813787184780.7593 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-10T11:59:23+08:00", "utc": "1912-07-10T03:59:23Z", "ms": -1813867236763.5112 }, "end": { "local": "1912-07-11T10:13:35+08:00", "utc": "1912-07-11T02:13:35Z", "ms": -1813787184780.7593 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-07-10", "window": { "start": { "local": "1912-07-10T05:41:20+08:00", "utc": "1912-07-09T21:41:20Z", "ms": -1813889919791.9714 }, "end": { "local": "1912-07-10T05:41:20+08:00", "utc": "1912-07-09T21:41:20Z", "ms": -1813889919791.9714 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-07-11", "window": { "start": { "local": "1912-07-11T05:41:56+08:00", "utc": "1912-07-10T21:41:56Z", "ms": -1813803484386.5137 }, "end": { "local": "1912-07-11T05:41:56+08:00", "utc": "1912-07-10T21:41:56Z", "ms": -1813803484386.5137 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:59 on Wed 10 Jul to 10:14 on Thu 11 Jul.", "fact": "1912-07-10T03:59:23Z → 1912-07-11T02:13:35Z" }, { "step": "kaala", "text": "Sunrise is at 05:41 on the 10th and 05:42 on the 11th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 10th and is on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16300 s" }, { "step": "ruling", "text": "Kṛṣṇa Ekādaśī, Qingyang, 1912: Thursday 11 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": "1912-07-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-11", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Ekādaśī 1912 falls on Thursday 11 July. Ekādaśī runs from 11:59 on Wed 10 Jul to 10:14 on Thu 11 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-07-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-07-12", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25985, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-07-12T07:43:25+08:00", "utc": "1912-07-11T23:43:25Z", "ms": -1813709794781.4187 }, "end": { "local": "1912-07-13T04:36:37+08:00", "utc": "1912-07-12T20:36:37Z", "ms": -1813634602701.8232 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-12T07:43:25+08:00", "utc": "1912-07-11T23:43:25Z", "ms": -1813709794781.4187 }, "end": { "local": "1912-07-13T04:36:37+08:00", "utc": "1912-07-12T20:36:37Z", "ms": -1813634602701.8232 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-07-11", "window": { "start": { "local": "1912-07-11T20:07:01+08:00", "utc": "1912-07-11T12:07:01Z", "ms": -1813751578857.9062 }, "end": { "local": "1912-07-11T21:23:45+08:00", "utc": "1912-07-11T13:23:45Z", "ms": -1813746974756.4275 } }, "covered_min": 0, "window_min": 77, "qualifies": false }, { "local_date": "1912-07-12", "window": { "start": { "local": "1912-07-12T20:06:40+08:00", "utc": "1912-07-12T12:06:40Z", "ms": -1813665199652.8972 }, "end": { "local": "1912-07-12T21:23:32+08:00", "utc": "1912-07-12T13:23:32Z", "ms": -1813660587827.6692 } }, "covered_min": 77, "window_min": 77, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:43 on Fri 12 Jul to 04:37 on Sat 13 Jul.", "fact": "1912-07-11T23:43:25Z → 1912-07-12T20:36:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:07–21:24 on the 11th, 20:07–21:24 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 77 minutes on the 11th and 77 of 77 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 25985 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Friday 12 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": "1912-07-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-12", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Friday 12 July. Trayodaśī runs from 07:43 on Fri 12 Jul to 04:37 on Sat 13 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-07-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-07-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 970, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-07-13T04:36:37+08:00", "utc": "1912-07-12T20:36:37Z", "ms": -1813634602701.8232 }, "end": { "local": "1912-07-14T01:02:52+08:00", "utc": "1912-07-13T17:02:52Z", "ms": -1813561027915.5117 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": true, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-13T04:36:37+08:00", "utc": "1912-07-12T20:36:37Z", "ms": -1813634602701.8232 }, "end": { "local": "1912-07-14T01:02:52+08:00", "utc": "1912-07-13T17:02:52Z", "ms": -1813561027915.5117 } }, "kaala": "nishita", "days": [ { "local_date": "1912-07-12", "window": { "start": { "local": "1912-07-13T00:30:55+08:00", "utc": "1912-07-12T16:30:55Z", "ms": -1813649345308.292 }, "end": { "local": "1912-07-13T01:18:55+08:00", "utc": "1912-07-12T17:18:55Z", "ms": -1813646465308.292 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-07-13", "window": { "start": { "local": "1912-07-14T00:31:02+08:00", "utc": "1912-07-13T16:31:02Z", "ms": -1813562937591.472 }, "end": { "local": "1912-07-14T01:19:02+08:00", "utc": "1912-07-13T17:19:02Z", "ms": -1813560057591.472 } }, "covered_min": 32, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:37 on Sat 13 Jul to 01:03 on Sun 14 Jul.", "fact": "1912-07-12T20:36:37Z → 1912-07-13T17:02:52Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:31–01:19 on the 12th, 00:31–01:19 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 32 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 970 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Saturday 13 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": "1912-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-13", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Saturday 13 July. Caturdaśī runs from 04:37 on Sat 13 Jul to 01:03 on Sun 14 Jul and covers 32 of 48 minutes of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-07-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 665, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1912-07-15T17:18:19+08:00", "utc": "1912-07-15T09:18:19Z", "ms": -1813416101437.4312 }, "end": { "local": "1912-07-16T13:30:07+08:00", "utc": "1912-07-16T05:30:07Z", "ms": -1813343392890.1536 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-15T17:18:19+08:00", "utc": "1912-07-15T09:18:19Z", "ms": -1813416101437.4312 }, "end": { "local": "1912-07-16T13:30:07+08:00", "utc": "1912-07-16T05:30:07Z", "ms": -1813343392890.1536 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-07-15", "window": { "start": { "local": "1912-07-15T12:30:57+08:00", "utc": "1912-07-15T04:30:57Z", "ms": -1813433343300.0854 }, "end": { "local": "1912-07-15T13:18:57+08:00", "utc": "1912-07-15T05:18:57Z", "ms": -1813430463300.0854 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-07-16", "window": { "start": { "local": "1912-07-16T12:31:03+08:00", "utc": "1912-07-16T04:31:03Z", "ms": -1813346937398.2634 }, "end": { "local": "1912-07-16T13:19:03+08:00", "utc": "1912-07-16T05:19:03Z", "ms": -1813344057398.2634 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 17:18 on Mon 15 Jul to 13:30 on Tue 16 Jul.", "fact": "1912-07-15T09:18:19Z → 1912-07-16T05:30:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 15th, 12:31–13:19 on the 16th.", "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 15th and 48 of 48 on the 16th.", "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 665 s" }, { "step": "ruling", "text": "Rathayātrā, Qingyang, 1912: Tuesday 16 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rathayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')" } ], "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-16", "confidence": "determinate" } ], "quote": "In Qingyang, Rathayātrā 1912 falls on Tuesday 16 July. Dvitīyā runs from 17:18 on Mon 15 Jul to 13:30 on Tue 16 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/rathayatra", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-07-17", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9118, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-07-17T09:59:10+08:00", "utc": "1912-07-17T01:59:10Z", "ms": -1813269650217.0007 }, "end": { "local": "1912-07-18T06:55:08+08:00", "utc": "1912-07-17T22:55:08Z", "ms": -1813194291842.5984 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-17T09:59:10+08:00", "utc": "1912-07-17T01:59:10Z", "ms": -1813269650217.0007 }, "end": { "local": "1912-07-18T06:55:08+08:00", "utc": "1912-07-17T22:55:08Z", "ms": -1813194291842.5984 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-07-17", "window": { "start": { "local": "1912-07-17T12:31:08+08:00", "utc": "1912-07-17T04:31:08Z", "ms": -1813260532006.6572 }, "end": { "local": "1912-07-17T13:19:08+08:00", "utc": "1912-07-17T05:19:08Z", "ms": -1813257652006.6572 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-07-18", "window": { "start": { "local": "1912-07-18T12:31:13+08:00", "utc": "1912-07-18T04:31:13Z", "ms": -1813174127141.8906 }, "end": { "local": "1912-07-18T13:19:13+08:00", "utc": "1912-07-18T05:19:13Z", "ms": -1813171247141.8906 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:59 on Wed 17 Jul to 06:55 on Thu 18 Jul.", "fact": "1912-07-17T01:59:10Z → 1912-07-17T22:55:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 17th, 12:31–13:19 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9118 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1912: Wednesday 17 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": "1912-07-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-17", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1912 falls on Wednesday 17 July. Caturthī runs from 09:59 on Wed 17 Jul to 06:55 on Thu 18 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-07-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20165, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1912-07-18T06:55:08+08:00", "utc": "1912-07-17T22:55:08Z", "ms": -1813194291842.5984 }, "end": { "local": "1912-07-19T04:26:06+08:00", "utc": "1912-07-18T20:26:06Z", "ms": -1813116833628.5283 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-18T06:55:08+08:00", "utc": "1912-07-17T22:55:08Z", "ms": -1813194291842.5984 }, "end": { "local": "1912-07-19T04:26:06+08:00", "utc": "1912-07-18T20:26:06Z", "ms": -1813116833628.5283 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-07-18", "window": { "start": { "local": "1912-07-18T12:31:13+08:00", "utc": "1912-07-18T04:31:13Z", "ms": -1813174127141.8906 }, "end": { "local": "1912-07-18T13:19:13+08:00", "utc": "1912-07-18T05:19:13Z", "ms": -1813171247141.8906 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-07-19", "window": { "start": { "local": "1912-07-19T12:31:17+08:00", "utc": "1912-07-19T04:31:17Z", "ms": -1813087722818.276 }, "end": { "local": "1912-07-19T13:19:17+08:00", "utc": "1912-07-19T05:19:17Z", "ms": -1813084842818.276 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 06:55 on Thu 18 Jul to 04:26 on Fri 19 Jul.", "fact": "1912-07-17T22:55:08Z → 1912-07-18T20:26:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 18th, 12:31–13:19 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 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20165 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Qingyang, 1912: Thursday 18 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Skanda pancami (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-07-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-18", "confidence": "determinate" } ], "quote": "In Qingyang, Skanda Pañcamī 1912 falls on Thursday 18 July. Pañcamī runs from 06:55 on Thu 18 Jul to 04:26 on Fri 19 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/skanda-panchami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35606, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1912-07-20T02:37:55+08:00", "utc": "1912-07-19T18:37:55Z", "ms": -1813036924728.3699 }, "end": { "local": "1912-07-21T01:33:41+08:00", "utc": "1912-07-20T17:33:41Z", "ms": -1812954379190.8928 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-20T02:37:55+08:00", "utc": "1912-07-19T18:37:55Z", "ms": -1813036924728.3699 }, "end": { "local": "1912-07-21T01:33:41+08:00", "utc": "1912-07-20T17:33:41Z", "ms": -1812954379190.8928 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-07-20", "window": { "start": { "local": "1912-07-20T12:31:21+08:00", "utc": "1912-07-20T04:31:21Z", "ms": -1813001319047.8518 }, "end": { "local": "1912-07-20T13:19:21+08:00", "utc": "1912-07-20T05:19:21Z", "ms": -1812998439047.8518 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-07-21", "window": { "start": { "local": "1912-07-21T12:31:24+08:00", "utc": "1912-07-21T04:31:24Z", "ms": -1812914915840.6182 }, "end": { "local": "1912-07-21T13:19:24+08:00", "utc": "1912-07-21T05:19:24Z", "ms": -1812912035840.6182 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:38 on Sat 20 Jul to 01:34 on Sun 21 Jul.", "fact": "1912-07-19T18:37:55Z → 1912-07-20T17:33:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:31–13:19 on the 20th, 12:31–13:19 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 35606 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Qingyang, 1912: Saturday 20 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vivasvat-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Vivasvat saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-07-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-20", "confidence": "determinate" } ], "quote": "In Qingyang, Vivasvat Saptamī 1912 falls on Saturday 20 July. Saptamī runs from 02:38 on Sat 20 Jul to 01:34 on Sun 21 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vivasvat-saptami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-07-24", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6849, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-07-24T02:31:08+08:00", "utc": "1912-07-23T18:31:08Z", "ms": -1812691731777.454 }, "end": { "local": "1912-07-25T03:57:16+08:00", "utc": "1912-07-24T19:57:16Z", "ms": -1812600163776.4116 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-24T02:31:08+08:00", "utc": "1912-07-23T18:31:08Z", "ms": -1812691731777.454 }, "end": { "local": "1912-07-25T03:57:16+08:00", "utc": "1912-07-24T19:57:16Z", "ms": -1812600163776.4116 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-07-24", "window": { "start": { "local": "1912-07-24T05:50:41+08:00", "utc": "1912-07-23T21:50:41Z", "ms": -1812679758695.521 }, "end": { "local": "1912-07-24T05:50:41+08:00", "utc": "1912-07-23T21:50:41Z", "ms": -1812679758695.521 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-07-25", "window": { "start": { "local": "1912-07-25T05:51:25+08:00", "utc": "1912-07-24T21:51:25Z", "ms": -1812593314568.1567 }, "end": { "local": "1912-07-25T05:51:25+08:00", "utc": "1912-07-24T21:51:25Z", "ms": -1812593314568.1567 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:31 on Wed 24 Jul to 03:57 on Thu 25 Jul.", "fact": "1912-07-23T18:31:08Z → 1912-07-24T19:57:16Z" }, { "step": "kaala", "text": "Sunrise is at 05:51 on the 24th and 05:51 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 6849 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Qingyang, 1912: Wednesday 24 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": "1912-07-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-24", "confidence": "determinate" } ], "quote": "In Qingyang, Hariśayanī Ekādaśī 1912 falls on Wednesday 24 July. Ekādaśī runs from 02:31 on Wed 24 Jul to 03:57 on Thu 25 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-07-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-07-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30434, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-07-26T05:45:51+08:00", "utc": "1912-07-25T21:45:51Z", "ms": -1812507248864.5317 }, "end": { "local": "1912-07-27T07:50:34+08:00", "utc": "1912-07-26T23:50:34Z", "ms": -1812413365799.7449 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-26T05:45:51+08:00", "utc": "1912-07-25T21:45:51Z", "ms": -1812507248864.5317 }, "end": { "local": "1912-07-27T07:50:34+08:00", "utc": "1912-07-26T23:50:34Z", "ms": -1812413365799.7449 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-07-25", "window": { "start": { "local": "1912-07-25T19:59:37+08:00", "utc": "1912-07-25T11:59:37Z", "ms": -1812542423004.8188 }, "end": { "local": "1912-07-25T21:18:37+08:00", "utc": "1912-07-25T13:18:37Z", "ms": -1812537682614.4622 } }, "covered_min": 0, "window_min": 79, "qualifies": false }, { "local_date": "1912-07-26", "window": { "start": { "local": "1912-07-26T19:58:53+08:00", "utc": "1912-07-26T11:58:53Z", "ms": -1812456066904.338 }, "end": { "local": "1912-07-26T21:18:05+08:00", "utc": "1912-07-26T13:18:05Z", "ms": -1812451314683.6785 } }, "covered_min": 79, "window_min": 79, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:46 on Fri 26 Jul to 07:51 on Sat 27 Jul.", "fact": "1912-07-25T21:45:51Z → 1912-07-26T23:50:34Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 20:00–21:19 on the 25th, 19:59–21:18 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 79 minutes on the 25th and 79 of 79 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 30434 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Friday 26 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": "1912-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-26", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Friday 26 July. Trayodaśī runs from 05:46 on Fri 26 Jul to 07:51 on Sat 27 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-07-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-28", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 217, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-07-28T10:06:05+08:00", "utc": "1912-07-28T02:06:05Z", "ms": -1812318835418.683 }, "end": { "local": "1912-07-29T12:27:52+08:00", "utc": "1912-07-29T04:27:52Z", "ms": -1812223928206.6938 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-28T10:06:05+08:00", "utc": "1912-07-28T02:06:05Z", "ms": -1812318835418.683 }, "end": { "local": "1912-07-29T12:27:52+08:00", "utc": "1912-07-29T04:27:52Z", "ms": -1812223928206.6938 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-07-28", "window": { "start": { "local": "1912-07-28T12:31:30+08:00", "utc": "1912-07-28T04:31:30Z", "ms": -1812310109678.8623 }, "end": { "local": "1912-07-28T13:19:30+08:00", "utc": "1912-07-28T05:19:30Z", "ms": -1812307229678.8623 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-07-29", "window": { "start": { "local": "1912-07-29T12:31:29+08:00", "utc": "1912-07-29T04:31:29Z", "ms": -1812223711164.1255 }, "end": { "local": "1912-07-29T13:19:29+08:00", "utc": "1912-07-29T05:19:29Z", "ms": -1812220831164.1255 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:06 on Sun 28 Jul to 12:28 on Mon 29 Jul.", "fact": "1912-07-28T02:06:05Z → 1912-07-29T04:27:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:32–13:20 on the 28th, 12:31–13:19 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 217 s < 300 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Qingyang, 1912: Sunday 28 July.", "fact": "confidence: boundary (margin)" } ], "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": "1912-07-28", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-29", "confidence": "determinate" } ], "quote": "In Qingyang, Guru Pūrṇimā 1912 falls on Sunday 28 July. Pūrṇimā runs from 10:06 on Sun 28 Jul to 12:28 on Mon 29 Jul and covers all of madhyāhna that midday. It is 3 min 37 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/guru-purnima", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16815, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-07-28T10:06:05+08:00", "utc": "1912-07-28T02:06:05Z", "ms": -1812318835418.683 }, "end": { "local": "1912-07-29T12:27:52+08:00", "utc": "1912-07-29T04:27:52Z", "ms": -1812223928206.6938 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-28T10:06:05+08:00", "utc": "1912-07-28T02:06:05Z", "ms": -1812318835418.683 }, "end": { "local": "1912-07-29T12:27:52+08:00", "utc": "1912-07-29T04:27:52Z", "ms": -1812223928206.6938 } }, "kaala": "sayahna", "days": [ { "local_date": "1912-07-28", "window": { "start": { "local": "1912-07-28T17:08:37+08:00", "utc": "1912-07-28T09:08:37Z", "ms": -1812293483419.8765 }, "end": { "local": "1912-07-28T19:57:21+08:00", "utc": "1912-07-28T11:57:21Z", "ms": -1812283359247.2192 } }, "covered_min": 169, "window_min": 169, "qualifies": true }, { "local_date": "1912-07-29", "window": { "start": { "local": "1912-07-29T17:08:07+08:00", "utc": "1912-07-29T09:08:07Z", "ms": -1812207113051.719 }, "end": { "local": "1912-07-29T19:56:32+08:00", "utc": "1912-07-29T11:56:32Z", "ms": -1812197007643.448 } }, "covered_min": 0, "window_min": 168, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:06 on Sun 28 Jul to 12:28 on Mon 29 Jul.", "fact": "1912-07-28T02:06:05Z → 1912-07-29T04:27:52Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 17:09–19:57 on the 28th, 17:08–19:57 on the 29th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 169 of 169 minutes on the 28th and 0 of 168 on the 29th.", "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 16815 s" }, { "step": "ruling", "text": "Kokilā Vrata, Qingyang, 1912: Sunday 28 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kokila-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-07-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-28", "confidence": "determinate" } ], "quote": "In Qingyang, Kokilā Vrata 1912 falls on Sunday 28 July. Pūrṇimā runs from 10:06 on Sun 28 Jul to 12:28 on Mon 29 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/qingyang/festivals/1912/kokila-vrata", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26921, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-07-28T10:06:05+08:00", "utc": "1912-07-28T02:06:05Z", "ms": -1812318835418.683 }, "end": { "local": "1912-07-29T12:27:52+08:00", "utc": "1912-07-29T04:27:52Z", "ms": -1812223928206.6938 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-28T10:06:05+08:00", "utc": "1912-07-28T02:06:05Z", "ms": -1812318835418.683 }, "end": { "local": "1912-07-29T12:27:52+08:00", "utc": "1912-07-29T04:27:52Z", "ms": -1812223928206.6938 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-07-28", "window": { "start": { "local": "1912-07-28T19:57:21+08:00", "utc": "1912-07-28T11:57:21Z", "ms": -1812283359247.2192 }, "end": { "local": "1912-07-28T21:16:57+08:00", "utc": "1912-07-28T13:16:57Z", "ms": -1812278582638.8972 } }, "covered_min": 80, "window_min": 80, "qualifies": true }, { "local_date": "1912-07-29", "window": { "start": { "local": "1912-07-29T19:56:32+08:00", "utc": "1912-07-29T11:56:32Z", "ms": -1812197007643.448 }, "end": { "local": "1912-07-29T21:16:22+08:00", "utc": "1912-07-29T13:16:22Z", "ms": -1812192218490.3752 } }, "covered_min": 0, "window_min": 80, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:06 on Sun 28 Jul to 12:28 on Mon 29 Jul.", "fact": "1912-07-28T02:06:05Z → 1912-07-29T04:27:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:57–21:17 on the 28th, 19:57–21:16 on the 29th.", "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 28th and 0 of 80 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26921 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Qingyang, 1912: Sunday 28 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shiva-shayanotsava", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-07-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-28", "confidence": "determinate" } ], "quote": "In Qingyang, Śiva Śayanotsava 1912 falls on Sunday 28 July. Pūrṇimā runs from 10:06 on Sun 28 Jul to 12:28 on Mon 29 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/shiva-shayanotsava", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5021, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-07-28T10:06:05+08:00", "utc": "1912-07-28T02:06:05Z", "ms": -1812318835418.683 }, "end": { "local": "1912-07-29T12:27:52+08:00", "utc": "1912-07-29T04:27:52Z", "ms": -1812223928206.6938 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1912-07-28T10:06:05+08:00", "utc": "1912-07-28T02:06:05Z", "ms": -1812318835418.683 }, "end": { "local": "1912-07-29T12:27:52+08:00", "utc": "1912-07-29T04:27:52Z", "ms": -1812223928206.6938 } }, "kaala": "udaya-3", "days": [ { "local_date": "1912-07-28", "window": { "start": { "local": "1912-07-28T05:53:40+08:00", "utc": "1912-07-27T21:53:40Z", "ms": -1812333980110.5051 }, "end": { "local": "1912-07-28T08:42:24+08:00", "utc": "1912-07-28T00:42:24Z", "ms": -1812323855937.848 } }, "covered_min": 0, "window_min": 169, "qualifies": false }, { "local_date": "1912-07-29", "window": { "start": { "local": "1912-07-29T05:54:25+08:00", "utc": "1912-07-28T21:54:25Z", "ms": -1812247534684.8032 }, "end": { "local": "1912-07-29T08:42:51+08:00", "utc": "1912-07-29T00:42:51Z", "ms": -1812237429276.5322 } }, "covered_min": 168, "window_min": 168, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:06 on Sun 28 Jul to 12:28 on Mon 29 Jul.", "fact": "1912-07-28T02:06:05Z → 1912-07-29T04:27:52Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:54–08:42 on the 28th, 05:54–08:43 on the 29th.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 0 of 169 minutes on the 28th and 168 of 168 on the 29th.", "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 5021 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Qingyang, 1912: Monday 29 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": "1912-07-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-29", "confidence": "determinate" } ], "quote": "In Qingyang, Vyāsa Pūjā 1912 falls on Monday 29 July. Pūrṇimā runs from 10:06 on Sun 28 Jul to 12:28 on Mon 29 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/qingyang/festivals/1912/vyasa-puja", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-07-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14989, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1912-07-30T14:51:43+08:00", "utc": "1912-07-30T06:51:43Z", "ms": -1812128896747.8862 }, "end": { "local": "1912-07-31T17:13:00+08:00", "utc": "1912-07-31T09:13:00Z", "ms": -1812034019570.3225 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-07-30T14:51:43+08:00", "utc": "1912-07-30T06:51:43Z", "ms": -1812128896747.8862 }, "end": { "local": "1912-07-31T17:13:00+08:00", "utc": "1912-07-31T09:13:00Z", "ms": -1812034019570.3225 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-07-30", "window": { "start": { "local": "1912-07-30T20:56:25+08:00", "utc": "1912-07-30T12:56:25Z", "ms": -1812107015109.5972 }, "end": { "local": "1912-07-30T20:56:25+08:00", "utc": "1912-07-30T12:56:25Z", "ms": -1812107015109.5972 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-07-31", "window": { "start": { "local": "1912-07-31T21:22:49+08:00", "utc": "1912-07-31T13:22:49Z", "ms": -1812019030562.0742 }, "end": { "local": "1912-07-31T21:22:49+08:00", "utc": "1912-07-31T13:22:49Z", "ms": -1812019030562.0742 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 14:52 on Tue 30 Jul to 17:13 on Wed 31 Jul.", "fact": "1912-07-30T06:51:43Z → 1912-07-31T09:13:00Z" }, { "step": "kaala", "text": "Moonrise is at 20:56 on the 30th and 21:23 on the 31st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā 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. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14989 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Qingyang, 1912: Tuesday 30 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": "1912-07-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-07-30", "confidence": "determinate" } ], "quote": "In Qingyang, Aśūnya Śayana Vrata (Āṣāḍha) 1912 falls on Tuesday 30 July. Dvitīyā runs from 14:52 on Tue 30 Jul to 17:13 on Wed 31 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ashunya-shayana-vrata-ashadha", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-08-01", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2764, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-08-01T19:26:00+08:00", "utc": "1912-08-01T11:26:00Z", "ms": -1811939639792.2239 }, "end": { "local": "1912-08-02T21:23:38+08:00", "utc": "1912-08-02T13:23:38Z", "ms": -1811846182297.7773 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-01T19:26:00+08:00", "utc": "1912-08-01T11:26:00Z", "ms": -1811939639792.2239 }, "end": { "local": "1912-08-02T21:23:38+08:00", "utc": "1912-08-02T13:23:38Z", "ms": -1811846182297.7773 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-08-01", "window": { "start": { "local": "1912-08-01T21:46:50+08:00", "utc": "1912-08-01T13:46:50Z", "ms": -1811931189742.264 }, "end": { "local": "1912-08-01T21:46:50+08:00", "utc": "1912-08-01T13:46:50Z", "ms": -1811931189742.264 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-08-02", "window": { "start": { "local": "1912-08-02T22:09:42+08:00", "utc": "1912-08-02T14:09:42Z", "ms": -1811843418237.4297 }, "end": { "local": "1912-08-02T22:09:42+08:00", "utc": "1912-08-02T14:09:42Z", "ms": -1811843418237.4297 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:26 on Thu 1 Aug to 21:24 on Fri 2 Aug.", "fact": "1912-08-01T11:26:00Z → 1912-08-02T13:23:38Z" }, { "step": "kaala", "text": "Moonrise is at 21:47 on the 1st and 22:10 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 2764 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Thursday 1 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": "1912-08-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-01", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Thursday 1 August. Caturthī runs from 19:26 on Thu 1 Aug to 21:24 on Fri 2 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-08-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-08-09", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32738, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-08-08T20:57:20+08:00", "utc": "1912-08-08T12:57:20Z", "ms": -1811329359852.9426 }, "end": { "local": "1912-08-09T18:22:01+08:00", "utc": "1912-08-09T10:22:01Z", "ms": -1811252278775.754 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-08T20:57:20+08:00", "utc": "1912-08-08T12:57:20Z", "ms": -1811329359852.9426 }, "end": { "local": "1912-08-09T18:22:01+08:00", "utc": "1912-08-09T10:22:01Z", "ms": -1811252278775.754 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-08-09", "window": { "start": { "local": "1912-08-09T06:02:58+08:00", "utc": "1912-08-08T22:02:58Z", "ms": -1811296622010.0518 }, "end": { "local": "1912-08-09T06:02:58+08:00", "utc": "1912-08-08T22:02:58Z", "ms": -1811296622010.0518 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-08-10", "window": { "start": { "local": "1912-08-10T06:03:45+08:00", "utc": "1912-08-09T22:03:45Z", "ms": -1811210174705.1096 }, "end": { "local": "1912-08-10T06:03:45+08:00", "utc": "1912-08-09T22:03:45Z", "ms": -1811210174705.1096 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:57 on Thu 8 Aug to 18:22 on Fri 9 Aug.", "fact": "1912-08-08T12:57:20Z → 1912-08-09T10:22:01Z" }, { "step": "kaala", "text": "Sunrise is at 06:03 on the 9th and 06:04 on the 10th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 9th and is not on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32738 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Qingyang, 1912: Friday 9 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": "1912-08-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-09", "confidence": "determinate" } ], "quote": "In Qingyang, Kāmikā Ekādaśī 1912 falls on Friday 9 August. Ekādaśī runs from 20:57 on Thu 8 Aug to 18:22 on Fri 9 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-08-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-08-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16337, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-08-10T15:12:48+08:00", "utc": "1912-08-10T07:12:48Z", "ms": -1811177231705.023 }, "end": { "local": "1912-08-11T11:38:42+08:00", "utc": "1912-08-11T03:38:42Z", "ms": -1811103677573.8381 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-10T15:12:48+08:00", "utc": "1912-08-10T07:12:48Z", "ms": -1811177231705.023 }, "end": { "local": "1912-08-11T11:38:42+08:00", "utc": "1912-08-11T03:38:42Z", "ms": -1811103677573.8381 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-08-10", "window": { "start": { "local": "1912-08-10T19:45:06+08:00", "utc": "1912-08-10T11:45:06Z", "ms": -1811160894351.1055 }, "end": { "local": "1912-08-10T21:07:41+08:00", "utc": "1912-08-10T13:07:41Z", "ms": -1811155938752.7598 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "1912-08-11", "window": { "start": { "local": "1912-08-11T19:44:00+08:00", "utc": "1912-08-11T11:44:00Z", "ms": -1811074559629.3032 }, "end": { "local": "1912-08-11T21:06:51+08:00", "utc": "1912-08-11T13:06:51Z", "ms": -1811069589012.7454 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:13 on Sat 10 Aug to 11:39 on Sun 11 Aug.", "fact": "1912-08-10T07:12:48Z → 1912-08-11T03:38:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:45–21:08 on the 10th, 19:44–21:07 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 83 of 83 minutes on the 10th and 0 of 83 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 16337 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Saturday 10 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": "1912-08-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-10", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Saturday 10 August. Trayodaśī runs from 15:13 on Sat 10 Aug to 11:39 on Sun 11 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-08-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-08-11", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23478, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-08-11T11:38:42+08:00", "utc": "1912-08-11T03:38:42Z", "ms": -1811103677573.8381 }, "end": { "local": "1912-08-12T07:49:58+08:00", "utc": "1912-08-11T23:49:58Z", "ms": -1811031001803.1804 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-11T11:38:42+08:00", "utc": "1912-08-11T03:38:42Z", "ms": -1811103677573.8381 }, "end": { "local": "1912-08-12T07:49:58+08:00", "utc": "1912-08-11T23:49:58Z", "ms": -1811031001803.1804 } }, "kaala": "nishita", "days": [ { "local_date": "1912-08-10", "window": { "start": { "local": "1912-08-11T00:30:49+08:00", "utc": "1912-08-10T16:30:49Z", "ms": -1811143750857.309 }, "end": { "local": "1912-08-11T01:18:49+08:00", "utc": "1912-08-10T17:18:49Z", "ms": -1811140870857.309 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-08-11", "window": { "start": { "local": "1912-08-12T00:30:40+08:00", "utc": "1912-08-11T16:30:40Z", "ms": -1811057359817.211 }, "end": { "local": "1912-08-12T01:18:40+08:00", "utc": "1912-08-11T17:18:40Z", "ms": -1811054479817.211 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:39 on Sun 11 Aug to 07:50 on Mon 12 Aug.", "fact": "1912-08-11T03:38:42Z → 1912-08-11T23:49:58Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:31–01:19 on the 10th, 00:31–01:19 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 23478 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Sunday 11 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": "1912-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-11", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Sunday 11 August. Caturdaśī runs from 11:39 on Sun 11 Aug to 07:50 on Mon 12 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-08-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16074, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1912-08-14T20:44:57+08:00", "utc": "1912-08-14T12:44:57Z", "ms": -1810811703136.9683 }, "end": { "local": "1912-08-15T17:45:30+08:00", "utc": "1912-08-15T09:45:30Z", "ms": -1810736070434.308 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-14T20:44:57+08:00", "utc": "1912-08-14T12:44:57Z", "ms": -1810811703136.9683 }, "end": { "local": "1912-08-15T17:45:30+08:00", "utc": "1912-08-15T09:45:30Z", "ms": -1810736070434.308 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-08-14", "window": { "start": { "local": "1912-08-14T12:29:46+08:00", "utc": "1912-08-14T04:29:46Z", "ms": -1810841413710.5312 }, "end": { "local": "1912-08-14T13:17:46+08:00", "utc": "1912-08-14T05:17:46Z", "ms": -1810838533710.5312 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-08-15", "window": { "start": { "local": "1912-08-15T12:29:35+08:00", "utc": "1912-08-15T04:29:35Z", "ms": -1810755024876.9136 }, "end": { "local": "1912-08-15T13:17:35+08:00", "utc": "1912-08-15T05:17:35Z", "ms": -1810752144876.9136 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 20:45 on Wed 14 Aug to 17:45 on Thu 15 Aug.", "fact": "1912-08-14T12:44:57Z → 1912-08-15T09:45:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 14th, 12:30–13:18 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16074 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Qingyang, 1912: Thursday 15 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": "1912-08-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-15", "confidence": "determinate" } ], "quote": "In Qingyang, Madhusravā Tṛtīyā (Hariyali Teej) 1912 falls on Thursday 15 August. Tṛtīyā runs from 20:45 on Wed 14 Aug to 17:45 on Thu 15 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/madhusrava-tritiya", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-08-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7500, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-08-15T17:45:30+08:00", "utc": "1912-08-15T09:45:30Z", "ms": -1810736070434.308 }, "end": { "local": "1912-08-16T15:22:23+08:00", "utc": "1912-08-16T07:22:23Z", "ms": -1810658257060.3733 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-15T17:45:30+08:00", "utc": "1912-08-15T09:45:30Z", "ms": -1810736070434.308 }, "end": { "local": "1912-08-16T15:22:23+08:00", "utc": "1912-08-16T07:22:23Z", "ms": -1810658257060.3733 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-08-15", "window": { "start": { "local": "1912-08-15T12:29:35+08:00", "utc": "1912-08-15T04:29:35Z", "ms": -1810755024876.9136 }, "end": { "local": "1912-08-15T13:17:35+08:00", "utc": "1912-08-15T05:17:35Z", "ms": -1810752144876.9136 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-08-16", "window": { "start": { "local": "1912-08-16T12:29:23+08:00", "utc": "1912-08-16T04:29:23Z", "ms": -1810668636583.6992 }, "end": { "local": "1912-08-16T13:17:23+08:00", "utc": "1912-08-16T05:17:23Z", "ms": -1810665756583.6992 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:45 on Thu 15 Aug to 15:22 on Fri 16 Aug.", "fact": "1912-08-15T09:45:30Z → 1912-08-16T07:22:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:30–13:18 on the 15th, 12:29–13:17 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7500 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1912: Friday 16 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": "1912-08-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-16", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1912 falls on Friday 16 August. Caturthī runs from 17:45 on Thu 15 Aug to 15:22 on Fri 16 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-08-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1496, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1912-08-16T15:22:23+08:00", "utc": "1912-08-16T07:22:23Z", "ms": -1810658257060.3733 }, "end": { "local": "1912-08-17T13:42:07+08:00", "utc": "1912-08-17T05:42:07Z", "ms": -1810577872807.2593 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-16T15:22:23+08:00", "utc": "1912-08-16T07:22:23Z", "ms": -1810658257060.3733 }, "end": { "local": "1912-08-17T13:42:07+08:00", "utc": "1912-08-17T05:42:07Z", "ms": -1810577872807.2593 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-08-16", "window": { "start": { "local": "1912-08-16T12:29:23+08:00", "utc": "1912-08-16T04:29:23Z", "ms": -1810668636583.6992 }, "end": { "local": "1912-08-16T13:17:23+08:00", "utc": "1912-08-16T05:17:23Z", "ms": -1810665756583.6992 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-08-17", "window": { "start": { "local": "1912-08-17T12:29:11+08:00", "utc": "1912-08-17T04:29:11Z", "ms": -1810582248824.0623 }, "end": { "local": "1912-08-17T13:17:11+08:00", "utc": "1912-08-17T05:17:11Z", "ms": -1810579368824.0623 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 15:22 on Fri 16 Aug to 13:42 on Sat 17 Aug.", "fact": "1912-08-16T07:22:23Z → 1912-08-17T05:42:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:29–13:17 on the 16th, 12:29–13:17 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī 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 1496 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Qingyang, 1912: Saturday 17 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": "1912-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-17", "confidence": "determinate" } ], "quote": "In Qingyang, Nāga Pañcamī 1912 falls on Saturday 17 August. Pañcamī runs from 15:22 on Fri 16 Aug to 13:42 on Sat 17 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/naga-panchami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-08-23", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36719, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-08-22T16:25:10+08:00", "utc": "1912-08-22T08:25:10Z", "ms": -1810136089872.7349 }, "end": { "local": "1912-08-23T18:34:02+08:00", "utc": "1912-08-23T10:34:02Z", "ms": -1810041957657.9614 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-22T16:25:10+08:00", "utc": "1912-08-22T08:25:10Z", "ms": -1810136089872.7349 }, "end": { "local": "1912-08-23T18:34:02+08:00", "utc": "1912-08-23T10:34:02Z", "ms": -1810041957657.9614 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-08-22", "window": { "start": { "local": "1912-08-22T06:13:11+08:00", "utc": "1912-08-21T22:13:11Z", "ms": -1810172809044.5676 }, "end": { "local": "1912-08-22T06:13:11+08:00", "utc": "1912-08-21T22:13:11Z", "ms": -1810172809044.5676 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-08-23", "window": { "start": { "local": "1912-08-23T06:13:58+08:00", "utc": "1912-08-22T22:13:58Z", "ms": -1810086362430.0334 }, "end": { "local": "1912-08-23T06:13:58+08:00", "utc": "1912-08-22T22:13:58Z", "ms": -1810086362430.0334 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:25 on Thu 22 Aug to 18:34 on Fri 23 Aug.", "fact": "1912-08-22T08:25:10Z → 1912-08-23T10:34:02Z" }, { "step": "kaala", "text": "Sunrise is at 06:13 on the 22nd and 06:14 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 36719 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Qingyang, 1912: Friday 23 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": "1912-08-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-23", "confidence": "determinate" } ], "quote": "In Qingyang, Putradā Ekādaśī 1912 falls on Friday 23 August. Ekādaśī runs from 16:25 on Thu 22 Aug to 18:34 on Fri 23 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-08-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19095, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1912-08-23T18:34:02+08:00", "utc": "1912-08-23T10:34:02Z", "ms": -1810041957657.9614 }, "end": { "local": "1912-08-24T20:55:09+08:00", "utc": "1912-08-24T12:55:09Z", "ms": -1809947091116.9788 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-23T18:34:02+08:00", "utc": "1912-08-23T10:34:02Z", "ms": -1810041957657.9614 }, "end": { "local": "1912-08-24T20:55:09+08:00", "utc": "1912-08-24T12:55:09Z", "ms": -1809947091116.9788 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-08-23", "window": { "start": { "local": "1912-08-23T12:27:47+08:00", "utc": "1912-08-23T04:27:47Z", "ms": -1810063932897.2202 }, "end": { "local": "1912-08-23T13:15:47+08:00", "utc": "1912-08-23T05:15:47Z", "ms": -1810061052897.2202 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-08-24", "window": { "start": { "local": "1912-08-24T12:27:31+08:00", "utc": "1912-08-24T04:27:31Z", "ms": -1809977548561.2134 }, "end": { "local": "1912-08-24T13:15:31+08:00", "utc": "1912-08-24T05:15:31Z", "ms": -1809974668561.2134 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 18:34 on Fri 23 Aug to 20:55 on Sat 24 Aug.", "fact": "1912-08-23T10:34:02Z → 1912-08-24T12:55:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:28–13:16 on the 23rd, 12:28–13:16 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 19095 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Qingyang, 1912: Saturday 24 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": "1912-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-24", "confidence": "determinate" } ], "quote": "In Qingyang, Dāmodara Dvādaśī 1912 falls on Saturday 24 August. Dvādaśī runs from 18:34 on Fri 23 Aug to 20:55 on Sat 24 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/damodara-dvadashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-08-25", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-25", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 33, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-08-24T20:55:09+08:00", "utc": "1912-08-24T12:55:09Z", "ms": -1809947091116.9788 }, "end": { "local": "1912-08-25T23:20:28+08:00", "utc": "1912-08-25T15:20:28Z", "ms": -1809851972487.675 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-24T20:55:09+08:00", "utc": "1912-08-24T12:55:09Z", "ms": -1809947091116.9788 }, "end": { "local": "1912-08-25T23:20:28+08:00", "utc": "1912-08-25T15:20:28Z", "ms": -1809851972487.675 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-08-24", "window": { "start": { "local": "1912-08-24T19:28:19+08:00", "utc": "1912-08-24T11:28:19Z", "ms": -1809952301203.7903 }, "end": { "local": "1912-08-24T20:54:36+08:00", "utc": "1912-08-24T12:54:36Z", "ms": -1809947123644.5076 } }, "covered_min": 0, "window_min": 86, "qualifies": false }, { "local_date": "1912-08-25", "window": { "start": { "local": "1912-08-25T19:27:00+08:00", "utc": "1912-08-25T11:27:00Z", "ms": -1809865979805.915 }, "end": { "local": "1912-08-25T20:53:34+08:00", "utc": "1912-08-25T12:53:34Z", "ms": -1809860785591.674 } }, "covered_min": 87, "window_min": 87, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:55 on Sat 24 Aug to 23:20 on Sun 25 Aug.", "fact": "1912-08-24T12:55:09Z → 1912-08-25T15:20:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:28–20:55 on the 24th, 19:27–20:54 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 0 of 86 minutes on the 24th and 87 of 87 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 33 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Sunday 25 August.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-08-25", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-25", "confidence": "boundary" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Sunday 25 August. Trayodaśī runs from 20:55 on Sat 24 Aug to 23:20 on Sun 25 Aug and covers all of pradoṣa that evening. It is 0 min 33 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-08-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8360, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-08-27T01:43:21+08:00", "utc": "1912-08-26T17:43:21Z", "ms": -1809756998920.9834 }, "end": { "local": "1912-08-28T03:58:30+08:00", "utc": "1912-08-27T19:58:30Z", "ms": -1809662490441.0461 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1912-08-27T14:52:11+08:00", "utc": "1912-08-27T06:52:11Z", "ms": -1809709668867.4075 }, "end": { "local": "1912-08-28T03:58:30+08:00", "utc": "1912-08-27T19:58:30Z", "ms": -1809662490441.0461 } }, "kaala": "day", "days": [ { "local_date": "1912-08-27", "window": { "start": { "local": "1912-08-27T06:17:03+08:00", "utc": "1912-08-26T22:17:03Z", "ms": -1809740576984.6602 }, "end": { "local": "1912-08-28T06:17:49+08:00", "utc": "1912-08-27T22:17:49Z", "ms": -1809654130860.8762 } }, "covered_min": 786, "window_min": 1441, "qualifies": true }, { "local_date": "1912-08-28", "window": { "start": { "local": "1912-08-28T06:17:49+08:00", "utc": "1912-08-27T22:17:49Z", "ms": -1809654130860.8762 }, "end": { "local": "1912-08-29T06:18:35+08:00", "utc": "1912-08-28T22:18:35Z", "ms": -1809567684821.746 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:43 on Tue 27 Aug to 03:58 on Wed 28 Aug. Its second half begins at 14:52 on Tue 27 Aug.", "fact": "1912-08-26T17:43:21Z → 1912-08-27T19:58:30Z · second half from 1912-08-27T06:52:11Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 06:17 on the 27th, and from 06:18 on the 28th.", "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 786 of 1441 minutes on the 27th and 0 of 1441 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8360 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Qingyang, 1912: Tuesday 27 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "raksha-bandhana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana" } ], "kaala": "day", "priority": "unstated", "when_absent": "unstated", "half": "second" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-27", "confidence": "determinate" } ], "quote": "In Qingyang, Rakṣā Bandhana (Rakhi) 1912 falls on Tuesday 27 August. The second half of Pūrṇimā runs from 14:52 on Tue 27 Aug to 03:58 on Wed 28 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/qingyang/festivals/1912/raksha-bandhana", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30475, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-08-27T01:43:21+08:00", "utc": "1912-08-26T17:43:21Z", "ms": -1809756998920.9834 }, "end": { "local": "1912-08-28T03:58:30+08:00", "utc": "1912-08-27T19:58:30Z", "ms": -1809662490441.0461 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1912-08-27T01:43:21+08:00", "utc": "1912-08-26T17:43:21Z", "ms": -1809756998920.9834 }, "end": { "local": "1912-08-28T03:58:30+08:00", "utc": "1912-08-27T19:58:30Z", "ms": -1809662490441.0461 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-08-27", "window": { "start": { "local": "1912-08-27T12:26:42+08:00", "utc": "1912-08-27T04:26:42Z", "ms": -1809718398080.7422 }, "end": { "local": "1912-08-27T13:14:42+08:00", "utc": "1912-08-27T05:14:42Z", "ms": -1809715518080.7422 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-08-28", "window": { "start": { "local": "1912-08-28T12:26:25+08:00", "utc": "1912-08-28T04:26:25Z", "ms": -1809632015372.8987 }, "end": { "local": "1912-08-28T13:14:25+08:00", "utc": "1912-08-28T05:14:25Z", "ms": -1809629135372.8987 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:43 on Tue 27 Aug to 03:58 on Wed 28 Aug.", "fact": "1912-08-26T17:43:21Z → 1912-08-27T19:58:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:27–13:15 on the 27th, 12:26–13:14 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30475 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Qingyang, 1912: Tuesday 27 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": "1912-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-27", "confidence": "determinate" } ], "quote": "In Qingyang, Ṛṣi Tarpaṇa 1912 falls on Tuesday 27 August. Pūrṇimā runs from 01:43 on Tue 27 Aug to 03:58 on Wed 28 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/rishi-tarpana", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36584, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1912-08-29T06:01:22+08:00", "utc": "1912-08-28T22:01:22Z", "ms": -1809568717795.6655 }, "end": { "local": "1912-08-30T07:47:44+08:00", "utc": "1912-08-29T23:47:44Z", "ms": -1809475935543.177 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-08-29T06:01:22+08:00", "utc": "1912-08-28T22:01:22Z", "ms": -1809568717795.6655 }, "end": { "local": "1912-08-30T07:47:44+08:00", "utc": "1912-08-29T23:47:44Z", "ms": -1809475935543.177 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-08-28", "window": { "start": { "local": "1912-08-28T19:51:38+08:00", "utc": "1912-08-28T11:51:38Z", "ms": -1809605301715.7605 }, "end": { "local": "1912-08-28T19:51:38+08:00", "utc": "1912-08-28T11:51:38Z", "ms": -1809605301715.7605 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-08-29", "window": { "start": { "local": "1912-08-29T20:14:44+08:00", "utc": "1912-08-29T12:14:44Z", "ms": -1809517515768.0332 }, "end": { "local": "1912-08-29T20:14:44+08:00", "utc": "1912-08-29T12:14:44Z", "ms": -1809517515768.0332 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 06:01 on Thu 29 Aug to 07:48 on Fri 30 Aug.", "fact": "1912-08-28T22:01:22Z → 1912-08-29T23:47:44Z" }, { "step": "kaala", "text": "Moonrise is at 19:52 on the 28th and 20:15 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36584 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Qingyang, 1912: Thursday 29 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": "1912-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-29", "confidence": "determinate" } ], "quote": "In Qingyang, Aśūnya Śayana Vrata 1912 falls on Thursday 29 August. Dvitīyā runs from 06:01 on Thu 29 Aug to 07:48 on Fri 30 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ashunya-shayana-vrata", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11537, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1912-08-30T07:47:44+08:00", "utc": "1912-08-29T23:47:44Z", "ms": -1809475935543.177 }, "end": { "local": "1912-08-31T09:13:13+08:00", "utc": "1912-08-31T01:13:13Z", "ms": -1809384406538.7473 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-08-30T07:47:44+08:00", "utc": "1912-08-29T23:47:44Z", "ms": -1809475935543.177 }, "end": { "local": "1912-08-31T09:13:13+08:00", "utc": "1912-08-31T01:13:13Z", "ms": -1809384406538.7473 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-08-30", "window": { "start": { "local": "1912-08-30T12:25:49+08:00", "utc": "1912-08-30T04:25:49Z", "ms": -1809459251027.7532 }, "end": { "local": "1912-08-30T13:13:49+08:00", "utc": "1912-08-30T05:13:49Z", "ms": -1809456371027.7532 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-08-31", "window": { "start": { "local": "1912-08-31T12:25:31+08:00", "utc": "1912-08-31T04:25:31Z", "ms": -1809372869353.0244 }, "end": { "local": "1912-08-31T13:13:31+08:00", "utc": "1912-08-31T05:13:31Z", "ms": -1809369989353.0244 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 07:48 on Fri 30 Aug to 09:13 on Sat 31 Aug.", "fact": "1912-08-29T23:47:44Z → 1912-08-31T01:13:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:26–13:14 on the 30th, 12:26–13:14 on the 31st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11537 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Qingyang, 1912: Friday 30 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kajjali-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 3 Kajjali trtiya, (paraviddha), Angaveta trtiya (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-30", "confidence": "determinate" } ], "quote": "In Qingyang, Kajjalī Tṛtīyā (Kajari Teej) 1912 falls on Friday 30 August. Tṛtīyā runs from 07:48 on Fri 30 Aug to 09:13 on Sat 31 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/kajjali-tritiya", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23340, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-08-31T09:13:13+08:00", "utc": "1912-08-31T01:13:13Z", "ms": -1809384406538.7473 }, "end": { "local": "1912-09-01T10:13:12+08:00", "utc": "1912-09-01T02:13:12Z", "ms": -1809294408063.144 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-08-31T09:13:13+08:00", "utc": "1912-08-31T01:13:13Z", "ms": -1809384406538.7473 }, "end": { "local": "1912-09-01T10:13:12+08:00", "utc": "1912-09-01T02:13:12Z", "ms": -1809294408063.144 } }, "kaala": "sayahna", "days": [ { "local_date": "1912-08-31", "window": { "start": { "local": "1912-08-31T16:43:09+08:00", "utc": "1912-08-31T08:43:09Z", "ms": -1809357411183.473 }, "end": { "local": "1912-08-31T19:18:54+08:00", "utc": "1912-08-31T11:18:54Z", "ms": -1809348065737.105 } }, "covered_min": 156, "window_min": 156, "qualifies": true }, { "local_date": "1912-09-01", "window": { "start": { "local": "1912-09-01T16:42:12+08:00", "utc": "1912-09-01T08:42:12Z", "ms": -1809271068492.0747 }, "end": { "local": "1912-09-01T19:17:31+08:00", "utc": "1912-09-01T11:17:31Z", "ms": -1809261748830.2607 } }, "covered_min": 0, "window_min": 155, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:13 on Sat 31 Aug to 10:13 on Sun 1 Sep.", "fact": "1912-08-31T01:13:13Z → 1912-09-01T02:13:12Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:43–19:19 on the 31st, 16:42–19:18 on the 1st.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 156 of 156 minutes on the 31st and 0 of 155 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 23340 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Qingyang, 1912: Saturday 31 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bahula-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day)." } ], "kaala": "sayahna", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-31", "confidence": "determinate" } ], "quote": "In Qingyang, Bahulā Caturthī 1912 falls on Saturday 31 August. Caturthī runs from 09:13 on Sat 31 Aug to 10:13 on Sun 1 Sep and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/qingyang/festivals/1912/bahula-chaturthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-08-31", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40419, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-08-31T09:13:13+08:00", "utc": "1912-08-31T01:13:13Z", "ms": -1809384406538.7473 }, "end": { "local": "1912-09-01T10:13:12+08:00", "utc": "1912-09-01T02:13:12Z", "ms": -1809294408063.144 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-08-31T09:13:13+08:00", "utc": "1912-08-31T01:13:13Z", "ms": -1809384406538.7473 }, "end": { "local": "1912-09-01T10:13:12+08:00", "utc": "1912-09-01T02:13:12Z", "ms": -1809294408063.144 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-08-31", "window": { "start": { "local": "1912-08-31T21:01:04+08:00", "utc": "1912-08-31T13:01:04Z", "ms": -1809341936136.6504 }, "end": { "local": "1912-08-31T21:01:04+08:00", "utc": "1912-08-31T13:01:04Z", "ms": -1809341936136.6504 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-09-01", "window": { "start": { "local": "1912-09-01T21:26:50+08:00", "utc": "1912-09-01T13:26:50Z", "ms": -1809253989510.7505 }, "end": { "local": "1912-09-01T21:26:50+08:00", "utc": "1912-09-01T13:26:50Z", "ms": -1809253989510.7505 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:13 on Sat 31 Aug to 10:13 on Sun 1 Sep.", "fact": "1912-08-31T01:13:13Z → 1912-09-01T02:13:12Z" }, { "step": "kaala", "text": "Moonrise is at 21:01 on the 31st and 21:27 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 40419 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Saturday 31 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": "1912-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-08-31", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Saturday 31 August. Caturthī runs from 09:13 on Sat 31 Aug to 10:13 on Sun 1 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-08-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6109, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1912-09-02T10:43:04+08:00", "utc": "1912-09-02T02:43:04Z", "ms": -1809206216131.4226 }, "end": { "local": "1912-09-03T10:38:48+08:00", "utc": "1912-09-03T02:38:48Z", "ms": -1809120071923.1082 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-02T10:43:04+08:00", "utc": "1912-09-02T02:43:04Z", "ms": -1809206216131.4226 }, "end": { "local": "1912-09-03T10:38:48+08:00", "utc": "1912-09-03T02:38:48Z", "ms": -1809120071923.1082 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-09-02", "window": { "start": { "local": "1912-09-02T12:24:53+08:00", "utc": "1912-09-02T04:24:53Z", "ms": -1809200106903.8604 }, "end": { "local": "1912-09-02T13:12:53+08:00", "utc": "1912-09-02T05:12:53Z", "ms": -1809197226903.8604 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-03", "window": { "start": { "local": "1912-09-03T12:24:34+08:00", "utc": "1912-09-03T04:24:34Z", "ms": -1809113726091.0557 }, "end": { "local": "1912-09-03T13:12:34+08:00", "utc": "1912-09-03T05:12:34Z", "ms": -1809110846091.0557 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 10:43 on Mon 2 Sep to 10:39 on Tue 3 Sep.", "fact": "1912-09-02T02:43:04Z → 1912-09-03T02:38:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 2nd, 12:25–13:13 on the 3rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6109 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Qingyang, 1912: Monday 2 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": "1912-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-02", "confidence": "determinate" } ], "quote": "In Qingyang, Hala Ṣaṣṭhī 1912 falls on Monday 2 September. Ṣaṣṭhī runs from 10:43 on Mon 2 Sep to 10:39 on Tue 3 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/hala-shashthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6346, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1912-09-03T10:38:48+08:00", "utc": "1912-09-03T02:38:48Z", "ms": -1809120071923.1082 }, "end": { "local": "1912-09-04T09:57:39+08:00", "utc": "1912-09-04T01:57:39Z", "ms": -1809036140591.2087 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-03T10:38:48+08:00", "utc": "1912-09-03T02:38:48Z", "ms": -1809120071923.1082 }, "end": { "local": "1912-09-04T09:57:39+08:00", "utc": "1912-09-04T01:57:39Z", "ms": -1809036140591.2087 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-09-03", "window": { "start": { "local": "1912-09-03T12:24:34+08:00", "utc": "1912-09-03T04:24:34Z", "ms": -1809113726091.0557 }, "end": { "local": "1912-09-03T13:12:34+08:00", "utc": "1912-09-03T05:12:34Z", "ms": -1809110846091.0557 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-04", "window": { "start": { "local": "1912-09-04T12:24:14+08:00", "utc": "1912-09-04T04:24:14Z", "ms": -1809027345527.4094 }, "end": { "local": "1912-09-04T13:12:14+08:00", "utc": "1912-09-04T05:12:14Z", "ms": -1809024465527.4094 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 10:39 on Tue 3 Sep to 09:58 on Wed 4 Sep.", "fact": "1912-09-03T02:38:48Z → 1912-09-04T01:57:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:25–13:13 on the 3rd, 12:24–13:12 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6346 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Qingyang, 1912: Tuesday 3 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": "1912-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-03", "confidence": "determinate" } ], "quote": "In Qingyang, Śītalā Saptamī 1912 falls on Tuesday 3 September. Saptamī runs from 10:39 on Tue 3 Sep to 09:58 on Wed 4 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/shitala-saptami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26768, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1912-09-04T09:57:39+08:00", "utc": "1912-09-04T01:57:39Z", "ms": -1809036140591.2087 }, "end": { "local": "1912-09-05T08:38:45+08:00", "utc": "1912-09-05T00:38:45Z", "ms": -1808954475140.9077 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-04T09:57:39+08:00", "utc": "1912-09-04T01:57:39Z", "ms": -1809036140591.2087 }, "end": { "local": "1912-09-05T08:38:45+08:00", "utc": "1912-09-05T00:38:45Z", "ms": -1808954475140.9077 } }, "kaala": "nishita", "days": [ { "local_date": "1912-09-03", "window": { "start": { "local": "1912-09-04T00:24:57+08:00", "utc": "1912-09-03T16:24:57Z", "ms": -1809070503243.1782 }, "end": { "local": "1912-09-04T01:12:57+08:00", "utc": "1912-09-03T17:12:57Z", "ms": -1809067623243.1782 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-09-04", "window": { "start": { "local": "1912-09-05T00:24:37+08:00", "utc": "1912-09-04T16:24:37Z", "ms": -1808984122693.573 }, "end": { "local": "1912-09-05T01:12:37+08:00", "utc": "1912-09-04T17:12:37Z", "ms": -1808981242693.573 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 09:58 on Wed 4 Sep to 08:39 on Thu 5 Sep.", "fact": "1912-09-04T01:57:39Z → 1912-09-05T00:38:45Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:25–01:13 on the 3rd, 00:25–01:13 on the 4th.", "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 3rd and 48 of 48 on the 4th.", "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 26768 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Qingyang, 1912: Wednesday 4 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": "1912-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-04", "confidence": "determinate" } ], "quote": "In Qingyang, Janmāṣṭamī 1912 falls on Wednesday 4 September. Aṣṭamī runs from 09:58 on Wed 4 Sep to 08:39 on Thu 5 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/janmashtami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-09-07", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7812, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-09-07T04:15:15+08:00", "utc": "1912-09-06T20:15:15Z", "ms": -1808797485012.9883 }, "end": { "local": "1912-09-08T01:19:54+08:00", "utc": "1912-09-07T17:19:54Z", "ms": -1808721605748.7385 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-07T04:15:15+08:00", "utc": "1912-09-06T20:15:15Z", "ms": -1808797485012.9883 }, "end": { "local": "1912-09-08T01:19:54+08:00", "utc": "1912-09-07T17:19:54Z", "ms": -1808721605748.7385 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-09-07", "window": { "start": { "local": "1912-09-07T06:25:27+08:00", "utc": "1912-09-06T22:25:27Z", "ms": -1808789672988.4312 }, "end": { "local": "1912-09-07T06:25:27+08:00", "utc": "1912-09-06T22:25:27Z", "ms": -1808789672988.4312 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-09-08", "window": { "start": { "local": "1912-09-08T06:26:13+08:00", "utc": "1912-09-07T22:26:13Z", "ms": -1808703227365.3872 }, "end": { "local": "1912-09-08T06:26:13+08:00", "utc": "1912-09-07T22:26:13Z", "ms": -1808703227365.3872 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:15 on Sat 7 Sep to 01:20 on Sun 8 Sep.", "fact": "1912-09-06T20:15:15Z → 1912-09-07T17:19:54Z" }, { "step": "kaala", "text": "Sunrise is at 06:25 on the 7th and 06:26 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7812 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Qingyang, 1912: Saturday 7 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": "1912-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-07", "confidence": "determinate" } ], "quote": "In Qingyang, Ajā Ekādaśī 1912 falls on Saturday 7 September. Ekādaśī runs from 04:15 on Sat 7 Sep to 01:20 on Sun 8 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-09-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-09-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-08", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1686, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-09-08T22:04:40+08:00", "utc": "1912-09-08T14:04:40Z", "ms": -1808646919592.7473 }, "end": { "local": "1912-09-09T18:38:04+08:00", "utc": "1912-09-09T10:38:04Z", "ms": -1808572915785.074 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-08T22:04:40+08:00", "utc": "1912-09-08T14:04:40Z", "ms": -1808646919592.7473 }, "end": { "local": "1912-09-09T18:38:04+08:00", "utc": "1912-09-09T10:38:04Z", "ms": -1808572915785.074 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-09-08", "window": { "start": { "local": "1912-09-08T19:07:37+08:00", "utc": "1912-09-08T11:07:37Z", "ms": -1808657543438.927 }, "end": { "local": "1912-09-08T20:38:11+08:00", "utc": "1912-09-08T12:38:11Z", "ms": -1808652108546.7302 } }, "covered_min": 0, "window_min": 91, "qualifies": false }, { "local_date": "1912-09-09", "window": { "start": { "local": "1912-09-09T19:06:10+08:00", "utc": "1912-09-09T11:06:10Z", "ms": -1808571229891.3218 }, "end": { "local": "1912-09-09T20:37:03+08:00", "utc": "1912-09-09T12:37:03Z", "ms": -1808565777389.9646 } }, "covered_min": 0, "window_min": 91, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:05 on Sun 8 Sep to 18:38 on Mon 9 Sep.", "fact": "1912-09-08T14:04:40Z → 1912-09-09T10:38:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:08–20:38 on the 8th, 19:06–20:37 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 91 minutes on the 8th and 0 of 91 on the 9th.", "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 1686 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Sunday 8 September.", "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": "1912-09-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-08", "confidence": "boundary" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Sunday 8 September. Trayodaśī runs from 22:05 on Sun 8 Sep to 18:38 on Mon 9 Sep, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-09-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1686, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-09-09T18:38:04+08:00", "utc": "1912-09-09T10:38:04Z", "ms": -1808572915785.074 }, "end": { "local": "1912-09-10T15:09:23+08:00", "utc": "1912-09-10T07:09:23Z", "ms": -1808499036806.1777 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-09T18:38:04+08:00", "utc": "1912-09-09T10:38:04Z", "ms": -1808572915785.074 }, "end": { "local": "1912-09-10T15:09:23+08:00", "utc": "1912-09-10T07:09:23Z", "ms": -1808499036806.1777 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-09-09", "window": { "start": { "local": "1912-09-09T19:06:10+08:00", "utc": "1912-09-09T11:06:10Z", "ms": -1808571229891.3218 }, "end": { "local": "1912-09-09T20:37:03+08:00", "utc": "1912-09-09T12:37:03Z", "ms": -1808565777389.9646 } }, "covered_min": 91, "window_min": 91, "qualifies": true }, { "local_date": "1912-09-10", "window": { "start": { "local": "1912-09-10T19:04:43+08:00", "utc": "1912-09-10T11:04:43Z", "ms": -1808484916640.0098 }, "end": { "local": "1912-09-10T20:35:54+08:00", "utc": "1912-09-10T12:35:54Z", "ms": -1808479446489.776 } }, "covered_min": 0, "window_min": 91, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:38 on Mon 9 Sep to 15:09 on Tue 10 Sep.", "fact": "1912-09-09T10:38:04Z → 1912-09-10T07:09:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:06–20:37 on the 9th, 19:05–20:36 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 91 of 91 minutes on the 9th and 0 of 91 on the 10th.", "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 1686 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Qingyang, 1912: Monday 9 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": "1912-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-09", "confidence": "determinate" } ], "quote": "In Qingyang, Aghora Caturdaśī 1912 falls on Monday 9 September. Caturdaśī runs from 18:38 on Mon 9 Sep to 15:09 on Tue 10 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/aghora-chaturdashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-09-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20693, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-09-09T18:38:04+08:00", "utc": "1912-09-09T10:38:04Z", "ms": -1808572915785.074 }, "end": { "local": "1912-09-10T15:09:23+08:00", "utc": "1912-09-10T07:09:23Z", "ms": -1808499036806.1777 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-09T18:38:04+08:00", "utc": "1912-09-09T10:38:04Z", "ms": -1808572915785.074 }, "end": { "local": "1912-09-10T15:09:23+08:00", "utc": "1912-09-10T07:09:23Z", "ms": -1808499036806.1777 } }, "kaala": "nishita", "days": [ { "local_date": "1912-09-09", "window": { "start": { "local": "1912-09-10T00:22:57+08:00", "utc": "1912-09-09T16:22:57Z", "ms": -1808552223011.2324 }, "end": { "local": "1912-09-10T01:10:57+08:00", "utc": "1912-09-09T17:10:57Z", "ms": -1808549343011.2324 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-10", "window": { "start": { "local": "1912-09-11T00:22:36+08:00", "utc": "1912-09-10T16:22:36Z", "ms": -1808465843576.6328 }, "end": { "local": "1912-09-11T01:10:36+08:00", "utc": "1912-09-10T17:10:36Z", "ms": -1808462963576.6328 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:38 on Mon 9 Sep to 15:09 on Tue 10 Sep.", "fact": "1912-09-09T10:38:04Z → 1912-09-10T07:09:23Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:23–01:11 on the 9th, 00:23–01:11 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20693 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Monday 9 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": "1912-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-09", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Monday 9 September. Caturdaśī runs from 18:38 on Mon 9 Sep to 15:09 on Tue 10 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-09-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2016, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1912-09-11T11:48:17+08:00", "utc": "1912-09-11T03:48:17Z", "ms": -1808424702797.3145 }, "end": { "local": "1912-09-12T08:44:25+08:00", "utc": "1912-09-12T00:44:25Z", "ms": -1808349335466.61 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-11T11:48:17+08:00", "utc": "1912-09-11T03:48:17Z", "ms": -1808424702797.3145 }, "end": { "local": "1912-09-12T08:44:25+08:00", "utc": "1912-09-12T00:44:25Z", "ms": -1808349335466.61 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-09-11", "window": { "start": { "local": "1912-09-11T12:21:53+08:00", "utc": "1912-09-11T04:21:53Z", "ms": -1808422687086.542 }, "end": { "local": "1912-09-11T13:09:53+08:00", "utc": "1912-09-11T05:09:53Z", "ms": -1808419807086.542 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-12", "window": { "start": { "local": "1912-09-12T12:21:32+08:00", "utc": "1912-09-12T04:21:32Z", "ms": -1808336307908.0815 }, "end": { "local": "1912-09-12T13:09:32+08:00", "utc": "1912-09-12T05:09:32Z", "ms": -1808333427908.0815 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 11:48 on Wed 11 Sep to 08:44 on Thu 12 Sep.", "fact": "1912-09-11T03:48:17Z → 1912-09-12T00:44:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:22–13:10 on the 11th, 12:22–13:10 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2016 s" }, { "step": "ruling", "text": "Rudra Vrata, Qingyang, 1912: Wednesday 11 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": "1912-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-11", "confidence": "determinate" } ], "quote": "In Qingyang, Rudra Vrata 1912 falls on Wednesday 11 September. Pratipadā runs from 11:48 on Wed 11 Sep to 08:44 on Thu 12 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/rudra-vrata", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22455, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1912-09-13T06:06:56+08:00", "utc": "1912-09-12T22:06:56Z", "ms": -1808272384036.6118 }, "end": { "local": "1912-09-14T04:04:04+08:00", "utc": "1912-09-13T20:04:04Z", "ms": -1808193356096.008 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-13T06:06:56+08:00", "utc": "1912-09-12T22:06:56Z", "ms": -1808272384036.6118 }, "end": { "local": "1912-09-14T04:04:04+08:00", "utc": "1912-09-13T20:04:04Z", "ms": -1808193356096.008 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-09-13", "window": { "start": { "local": "1912-09-13T12:21:11+08:00", "utc": "1912-09-13T04:21:11Z", "ms": -1808249928835.3828 }, "end": { "local": "1912-09-13T13:09:11+08:00", "utc": "1912-09-13T05:09:11Z", "ms": -1808247048835.3828 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-14", "window": { "start": { "local": "1912-09-14T12:20:50+08:00", "utc": "1912-09-14T04:20:50Z", "ms": -1808163549852.8806 }, "end": { "local": "1912-09-14T13:08:50+08:00", "utc": "1912-09-14T05:08:50Z", "ms": -1808160669852.8806 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:07 on Fri 13 Sep to 04:04 on Sat 14 Sep.", "fact": "1912-09-12T22:06:56Z → 1912-09-13T20:04:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:21–13:09 on the 13th, 12:21–13:09 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22455 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Qingyang, 1912: Friday 13 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": "1912-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-13", "confidence": "determinate" } ], "quote": "In Qingyang, Haritālikā Vrata (Hartalika Teej) 1912 falls on Friday 13 September. Tṛtīyā runs from 06:07 on Fri 13 Sep to 04:04 on Sat 14 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/haritalika-vrata", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29806, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-09-14T04:04:04+08:00", "utc": "1912-09-13T20:04:04Z", "ms": -1808193356096.008 }, "end": { "local": "1912-09-15T02:42:25+08:00", "utc": "1912-09-14T18:42:25Z", "ms": -1808111855151.787 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-14T04:04:04+08:00", "utc": "1912-09-13T20:04:04Z", "ms": -1808193356096.008 }, "end": { "local": "1912-09-15T02:42:25+08:00", "utc": "1912-09-14T18:42:25Z", "ms": -1808111855151.787 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-09-14", "window": { "start": { "local": "1912-09-14T12:20:50+08:00", "utc": "1912-09-14T04:20:50Z", "ms": -1808163549852.8806 }, "end": { "local": "1912-09-14T13:08:50+08:00", "utc": "1912-09-14T05:08:50Z", "ms": -1808160669852.8806 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-15", "window": { "start": { "local": "1912-09-15T12:20:29+08:00", "utc": "1912-09-15T04:20:29Z", "ms": -1808077170943.7397 }, "end": { "local": "1912-09-15T13:08:29+08:00", "utc": "1912-09-15T05:08:29Z", "ms": -1808074290943.7397 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:04 on Sat 14 Sep to 02:42 on Sun 15 Sep.", "fact": "1912-09-13T20:04:04Z → 1912-09-14T18:42:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:21–13:09 on the 14th, 12:20–13:08 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 29806 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Qingyang, 1912: Saturday 14 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": "1912-09-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-14", "confidence": "determinate" } ], "quote": "In Qingyang, Gaṇeśa Caturthī 1912 falls on Saturday 14 September. Caturthī runs from 04:04 on Sat 14 Sep to 02:42 on Sun 15 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/ganesha-chaturthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34684, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1912-09-15T02:42:25+08:00", "utc": "1912-09-14T18:42:25Z", "ms": -1808111855151.787 }, "end": { "local": "1912-09-16T02:06:16+08:00", "utc": "1912-09-15T18:06:16Z", "ms": -1808027623838.5903 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-15T02:42:25+08:00", "utc": "1912-09-14T18:42:25Z", "ms": -1808111855151.787 }, "end": { "local": "1912-09-16T02:06:16+08:00", "utc": "1912-09-15T18:06:16Z", "ms": -1808027623838.5903 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-09-15", "window": { "start": { "local": "1912-09-15T12:20:29+08:00", "utc": "1912-09-15T04:20:29Z", "ms": -1808077170943.7397 }, "end": { "local": "1912-09-15T13:08:29+08:00", "utc": "1912-09-15T05:08:29Z", "ms": -1808074290943.7397 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-16", "window": { "start": { "local": "1912-09-16T12:20:08+08:00", "utc": "1912-09-16T04:20:08Z", "ms": -1807990792091.106 }, "end": { "local": "1912-09-16T13:08:08+08:00", "utc": "1912-09-16T05:08:08Z", "ms": -1807987912091.106 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 02:42 on Sun 15 Sep to 02:06 on Mon 16 Sep.", "fact": "1912-09-14T18:42:25Z → 1912-09-15T18:06:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 15th, 12:20–13:08 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 34684 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Qingyang, 1912: Sunday 15 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": "1912-09-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-15", "confidence": "determinate" } ], "quote": "In Qingyang, Ṛṣi Pañcamī 1912 falls on Sunday 15 September. Pañcamī runs from 02:42 on Sun 15 Sep to 02:06 on Mon 16 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/rishi-panchami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36174, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1912-09-16T02:06:16+08:00", "utc": "1912-09-15T18:06:16Z", "ms": -1808027623838.5903 }, "end": { "local": "1912-09-17T02:16:53+08:00", "utc": "1912-09-16T18:16:53Z", "ms": -1807940587015.4143 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-16T02:06:16+08:00", "utc": "1912-09-15T18:06:16Z", "ms": -1808027623838.5903 }, "end": { "local": "1912-09-17T02:16:53+08:00", "utc": "1912-09-16T18:16:53Z", "ms": -1807940587015.4143 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-09-16", "window": { "start": { "local": "1912-09-16T12:20:08+08:00", "utc": "1912-09-16T04:20:08Z", "ms": -1807990792091.106 }, "end": { "local": "1912-09-16T13:08:08+08:00", "utc": "1912-09-16T05:08:08Z", "ms": -1807987912091.106 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-17", "window": { "start": { "local": "1912-09-17T12:19:47+08:00", "utc": "1912-09-17T04:19:47Z", "ms": -1807904413275.6865 }, "end": { "local": "1912-09-17T13:07:47+08:00", "utc": "1912-09-17T05:07:47Z", "ms": -1807901533275.6865 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 02:06 on Mon 16 Sep to 02:17 on Tue 17 Sep.", "fact": "1912-09-15T18:06:16Z → 1912-09-16T18:16:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 16th, 12:20–13:08 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36174 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Qingyang, 1912: Monday 16 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": "1912-09-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-16", "confidence": "determinate" } ], "quote": "In Qingyang, Sūrya Ṣaṣṭhī (Bhādrapada) 1912 falls on Monday 16 September. Ṣaṣṭhī runs from 02:06 on Mon 16 Sep to 02:17 on Tue 17 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/surya-shashthi-bhadrapada", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32849, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1912-09-17T02:16:53+08:00", "utc": "1912-09-16T18:16:53Z", "ms": -1807940587015.4143 }, "end": { "local": "1912-09-18T03:11:57+08:00", "utc": "1912-09-17T19:11:57Z", "ms": -1807850883455.7466 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-17T02:16:53+08:00", "utc": "1912-09-16T18:16:53Z", "ms": -1807940587015.4143 }, "end": { "local": "1912-09-18T03:11:57+08:00", "utc": "1912-09-17T19:11:57Z", "ms": -1807850883455.7466 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-09-17", "window": { "start": { "local": "1912-09-17T12:19:47+08:00", "utc": "1912-09-17T04:19:47Z", "ms": -1807904413275.6865 }, "end": { "local": "1912-09-17T13:07:47+08:00", "utc": "1912-09-17T05:07:47Z", "ms": -1807901533275.6865 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-18", "window": { "start": { "local": "1912-09-18T12:19:26+08:00", "utc": "1912-09-18T04:19:26Z", "ms": -1807818034478.37 }, "end": { "local": "1912-09-18T13:07:26+08:00", "utc": "1912-09-18T05:07:26Z", "ms": -1807815154478.37 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:17 on Tue 17 Sep to 03:12 on Wed 18 Sep.", "fact": "1912-09-16T18:16:53Z → 1912-09-17T19:11:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 17th, 12:19–13:07 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 32849 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Qingyang, 1912: Tuesday 17 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": "1912-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-17", "confidence": "determinate" } ], "quote": "In Qingyang, Muktābharaṇa Vrata 1912 falls on Tuesday 17 September. Saptamī runs from 02:17 on Tue 17 Sep to 03:12 on Wed 18 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/muktabharana-vrata", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27216, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1912-09-18T03:11:57+08:00", "utc": "1912-09-17T19:11:57Z", "ms": -1807850883455.7466 }, "end": { "local": "1912-09-19T04:45:28+08:00", "utc": "1912-09-18T20:45:28Z", "ms": -1807758871585.0798 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-18T03:11:57+08:00", "utc": "1912-09-17T19:11:57Z", "ms": -1807850883455.7466 }, "end": { "local": "1912-09-19T04:45:28+08:00", "utc": "1912-09-18T20:45:28Z", "ms": -1807758871585.0798 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-09-18", "window": { "start": { "local": "1912-09-18T12:19:26+08:00", "utc": "1912-09-18T04:19:26Z", "ms": -1807818034478.37 }, "end": { "local": "1912-09-18T13:07:26+08:00", "utc": "1912-09-18T05:07:26Z", "ms": -1807815154478.37 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-19", "window": { "start": { "local": "1912-09-19T12:19:04+08:00", "utc": "1912-09-19T04:19:04Z", "ms": -1807731655679.092 }, "end": { "local": "1912-09-19T13:07:04+08:00", "utc": "1912-09-19T05:07:04Z", "ms": -1807728775679.092 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 03:12 on Wed 18 Sep to 04:45 on Thu 19 Sep.", "fact": "1912-09-17T19:11:57Z → 1912-09-18T20:45:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:19–13:07 on the 18th, 12:19–13:07 on the 19th.", "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 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27216 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Qingyang, 1912: Wednesday 18 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": "1912-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-18", "confidence": "determinate" } ], "quote": "In Qingyang, Rādhāṣṭamī 1912 falls on Wednesday 18 September. Aṣṭamī runs from 03:12 on Wed 18 Sep to 04:45 on Thu 19 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/radhashtami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-09-22", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9204, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-09-21T09:09:31+08:00", "utc": "1912-09-21T01:09:31Z", "ms": -1807570228541.462 }, "end": { "local": "1912-09-22T11:37:21+08:00", "utc": "1912-09-22T03:37:21Z", "ms": -1807474958693.1511 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-21T09:09:31+08:00", "utc": "1912-09-21T01:09:31Z", "ms": -1807570228541.462 }, "end": { "local": "1912-09-22T11:37:21+08:00", "utc": "1912-09-22T03:37:21Z", "ms": -1807474958693.1511 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-09-21", "window": { "start": { "local": "1912-09-21T06:36:07+08:00", "utc": "1912-09-20T22:36:07Z", "ms": -1807579433033.061 }, "end": { "local": "1912-09-21T06:36:07+08:00", "utc": "1912-09-20T22:36:07Z", "ms": -1807579433033.061 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-09-22", "window": { "start": { "local": "1912-09-22T06:36:53+08:00", "utc": "1912-09-21T22:36:53Z", "ms": -1807492986956.311 }, "end": { "local": "1912-09-22T06:36:53+08:00", "utc": "1912-09-21T22:36:53Z", "ms": -1807492986956.311 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:10 on Sat 21 Sep to 11:37 on Sun 22 Sep.", "fact": "1912-09-21T01:09:31Z → 1912-09-22T03:37:21Z" }, { "step": "kaala", "text": "Sunrise is at 06:36 on the 21st and 06:37 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9204 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Qingyang, 1912: Sunday 22 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": "1912-09-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-22", "confidence": "determinate" } ], "quote": "In Qingyang, Parivartanī Ekādaśī 1912 falls on Sunday 22 September. Ekādaśī runs from 09:10 on Sat 21 Sep to 11:37 on Sun 22 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-09-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-22", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2440, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1912-09-22T11:37:21+08:00", "utc": "1912-09-22T03:37:21Z", "ms": -1807474958693.1511 }, "end": { "local": "1912-09-23T14:01:13+08:00", "utc": "1912-09-23T06:01:13Z", "ms": -1807379926515.221 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-22T11:37:21+08:00", "utc": "1912-09-22T03:37:21Z", "ms": -1807474958693.1511 }, "end": { "local": "1912-09-23T14:01:13+08:00", "utc": "1912-09-23T06:01:13Z", "ms": -1807379926515.221 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-09-22", "window": { "start": { "local": "1912-09-22T12:18:01+08:00", "utc": "1912-09-22T04:18:01Z", "ms": -1807472519060.4575 }, "end": { "local": "1912-09-22T13:06:01+08:00", "utc": "1912-09-22T05:06:01Z", "ms": -1807469639060.4575 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-09-23", "window": { "start": { "local": "1912-09-23T12:17:40+08:00", "utc": "1912-09-23T04:17:40Z", "ms": -1807386140041.968 }, "end": { "local": "1912-09-23T13:05:40+08:00", "utc": "1912-09-23T05:05:40Z", "ms": -1807383260041.968 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 11:37 on Sun 22 Sep to 14:01 on Mon 23 Sep.", "fact": "1912-09-22T03:37:21Z → 1912-09-23T06:01:13Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:18–13:06 on the 22nd, 12:18–13:06 on the 23rd.", "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 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2440 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Qingyang, 1912: Sunday 22 September.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1912-09-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-23", "confidence": "boundary" } ], "quote": "In Qingyang, Vāmana Jayantī 1912 falls on Sunday 22 September. Dvādaśī runs from 11:37 on Sun 22 Sep to 14:01 on Mon 23 Sep and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/vamana-jayanti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-09-23", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9105, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-09-23T14:01:13+08:00", "utc": "1912-09-23T06:01:13Z", "ms": -1807379926515.221 }, "end": { "local": "1912-09-24T16:12:27+08:00", "utc": "1912-09-24T08:12:27Z", "ms": -1807285652781.7402 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-23T14:01:13+08:00", "utc": "1912-09-23T06:01:13Z", "ms": -1807379926515.221 }, "end": { "local": "1912-09-24T16:12:27+08:00", "utc": "1912-09-24T08:12:27Z", "ms": -1807285652781.7402 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-09-23", "window": { "start": { "local": "1912-09-23T18:45:41+08:00", "utc": "1912-09-23T10:45:41Z", "ms": -1807362859313.0647 }, "end": { "local": "1912-09-23T20:20:43+08:00", "utc": "1912-09-23T12:20:43Z", "ms": -1807357157332.9277 } }, "covered_min": 95, "window_min": 95, "qualifies": true }, { "local_date": "1912-09-24", "window": { "start": { "local": "1912-09-24T18:44:13+08:00", "utc": "1912-09-24T10:44:13Z", "ms": -1807276547365.2095 }, "end": { "local": "1912-09-24T20:19:33+08:00", "utc": "1912-09-24T12:19:33Z", "ms": -1807270827451.78 } }, "covered_min": 0, "window_min": 95, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:01 on Mon 23 Sep to 16:12 on Tue 24 Sep.", "fact": "1912-09-23T06:01:13Z → 1912-09-24T08:12:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:46–20:21 on the 23rd, 18:44–20:20 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 95 of 95 minutes on the 23rd and 0 of 95 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9105 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Monday 23 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": "1912-09-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-23", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Monday 23 September. Trayodaśī runs from 14:01 on Mon 23 Sep to 16:12 on Tue 24 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-09-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25732, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-09-24T16:12:27+08:00", "utc": "1912-09-24T08:12:27Z", "ms": -1807285652781.7402 }, "end": { "local": "1912-09-25T18:04:43+08:00", "utc": "1912-09-25T10:04:43Z", "ms": -1807192516940.6655 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1912-09-24T16:12:27+08:00", "utc": "1912-09-24T08:12:27Z", "ms": -1807285652781.7402 }, "end": { "local": "1912-09-25T18:04:43+08:00", "utc": "1912-09-25T10:04:43Z", "ms": -1807192516940.6655 } }, "kaala": "udaya-3", "days": [ { "local_date": "1912-09-24", "window": { "start": { "local": "1912-09-24T06:38:26+08:00", "utc": "1912-09-23T22:38:26Z", "ms": -1807320094462.037 }, "end": { "local": "1912-09-24T09:03:35+08:00", "utc": "1912-09-24T01:03:35Z", "ms": -1807311385042.6716 } }, "covered_min": 0, "window_min": 145, "qualifies": false }, { "local_date": "1912-09-25", "window": { "start": { "local": "1912-09-25T06:39:12+08:00", "utc": "1912-09-24T22:39:12Z", "ms": -1807233648014.488 }, "end": { "local": "1912-09-25T09:03:55+08:00", "utc": "1912-09-25T01:03:55Z", "ms": -1807224965469.7366 } }, "covered_min": 145, "window_min": 145, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:12 on Tue 24 Sep to 18:05 on Wed 25 Sep.", "fact": "1912-09-24T08:12:27Z → 1912-09-25T10:04:43Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 06:38–09:04 on the 24th, 06:39–09:04 on the 25th.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must hold through the first three muhūrtas after sunrise. It covers 0 of 145 minutes on the 24th and 145 of 145 on the 25th.", "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 25732 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Qingyang, 1912: Wednesday 25 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": "1912-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-25", "confidence": "determinate" } ], "quote": "In Qingyang, Ananta Caturdaśī 1912 falls on Wednesday 25 September. Caturdaśī runs from 16:12 on Tue 24 Sep to 18:05 on Wed 25 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/qingyang/festivals/1912/ananta-chaturdashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-09-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-09-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2159, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-09-29T21:25:21+08:00", "utc": "1912-09-29T13:25:21Z", "ms": -1806834879279.942 }, "end": { "local": "1912-09-30T21:08:49+08:00", "utc": "1912-09-30T13:08:49Z", "ms": -1806749470686.3855 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-09-29T21:25:21+08:00", "utc": "1912-09-29T13:25:21Z", "ms": -1806834879279.942 }, "end": { "local": "1912-09-30T21:08:49+08:00", "utc": "1912-09-30T13:08:49Z", "ms": -1806749470686.3855 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-09-29", "window": { "start": { "local": "1912-09-29T19:59:15+08:00", "utc": "1912-09-29T11:59:15Z", "ms": -1806840045262.499 }, "end": { "local": "1912-09-29T19:59:15+08:00", "utc": "1912-09-29T11:59:15Z", "ms": -1806840045262.499 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-09-30", "window": { "start": { "local": "1912-09-30T20:32:50+08:00", "utc": "1912-09-30T12:32:50Z", "ms": -1806751629883.2715 }, "end": { "local": "1912-09-30T20:32:50+08:00", "utc": "1912-09-30T12:32:50Z", "ms": -1806751629883.2715 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:25 on Sun 29 Sep to 21:09 on Mon 30 Sep.", "fact": "1912-09-29T13:25:21Z → 1912-09-30T13:08:49Z" }, { "step": "kaala", "text": "Moonrise is at 19:59 on the 29th and 20:33 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2159 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Monday 30 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-09-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-09-30", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Monday 30 September. Caturthī runs from 21:25 on Sun 29 Sep to 21:09 on Mon 30 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-09-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2875, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1912-10-01T20:25:45+08:00", "utc": "1912-10-01T12:25:45Z", "ms": -1806665654871.9583 }, "end": { "local": "1912-10-02T19:16:50+08:00", "utc": "1912-10-02T11:16:50Z", "ms": -1806583390026.576 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-01T20:25:45+08:00", "utc": "1912-10-01T12:25:45Z", "ms": -1806665654871.9583 }, "end": { "local": "1912-10-02T19:16:50+08:00", "utc": "1912-10-02T11:16:50Z", "ms": -1806583390026.576 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-10-01", "window": { "start": { "local": "1912-10-01T21:13:40+08:00", "utc": "1912-10-01T13:13:40Z", "ms": -1806662779534.115 }, "end": { "local": "1912-10-01T21:13:40+08:00", "utc": "1912-10-01T13:13:40Z", "ms": -1806662779534.115 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-10-02", "window": { "start": { "local": "1912-10-02T22:03:44+08:00", "utc": "1912-10-02T14:03:44Z", "ms": -1806573375949.2207 }, "end": { "local": "1912-10-02T22:03:44+08:00", "utc": "1912-10-02T14:03:44Z", "ms": -1806573375949.2207 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:26 on Tue 1 Oct to 19:17 on Wed 2 Oct.", "fact": "1912-10-01T12:25:45Z → 1912-10-02T11:16:50Z" }, { "step": "kaala", "text": "Moonrise is at 21:14 on the 1st and 22:04 on the 2nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī 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. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2875 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Qingyang, 1912: Tuesday 1 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": "1912-10-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-01", "confidence": "determinate" } ], "quote": "In Qingyang, Candra Ṣaṣṭhī 1912 falls on Tuesday 1 October. Ṣaṣṭhī runs from 20:26 on Tue 1 Oct to 19:17 on Wed 2 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/chandra-shashthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2872, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1912-10-03T17:43:17+08:00", "utc": "1912-10-03T09:43:17Z", "ms": -1806502602801.011 }, "end": { "local": "1912-10-04T15:47:04+08:00", "utc": "1912-10-04T07:47:04Z", "ms": -1806423176104.4192 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-03T17:43:17+08:00", "utc": "1912-10-03T09:43:17Z", "ms": -1806502602801.011 }, "end": { "local": "1912-10-04T15:47:04+08:00", "utc": "1912-10-04T07:47:04Z", "ms": -1806423176104.4192 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-10-03", "window": { "start": { "local": "1912-10-03T18:31:10+08:00", "utc": "1912-10-03T10:31:10Z", "ms": -1806499730455.6672 }, "end": { "local": "1912-10-03T20:09:11+08:00", "utc": "1912-10-03T12:09:11Z", "ms": -1806493849204.7239 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "1912-10-04", "window": { "start": { "local": "1912-10-04T18:29:44+08:00", "utc": "1912-10-04T10:29:44Z", "ms": -1806413415857.2632 }, "end": { "local": "1912-10-04T20:08:03+08:00", "utc": "1912-10-04T12:08:03Z", "ms": -1806407516725.1235 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:43 on Thu 3 Oct to 15:47 on Fri 4 Oct.", "fact": "1912-10-03T09:43:17Z → 1912-10-04T07:47:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:31–20:09 on the 3rd, 18:30–20:08 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 98 of 98 minutes on the 3rd and 0 of 98 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2872 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Qingyang, 1912: Thursday 3 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": "1912-10-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-03", "confidence": "determinate" } ], "quote": "In Qingyang, Jitāṣṭamī (Jitiya) 1912 falls on Thursday 3 October. Aṣṭamī runs from 17:43 on Thu 3 Oct to 15:47 on Fri 4 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/jitashtami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19231, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1912-10-03T17:43:17+08:00", "utc": "1912-10-03T09:43:17Z", "ms": -1806502602801.011 }, "end": { "local": "1912-10-04T15:47:04+08:00", "utc": "1912-10-04T07:47:04Z", "ms": -1806423176104.4192 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-03T17:43:17+08:00", "utc": "1912-10-03T09:43:17Z", "ms": -1806502602801.011 }, "end": { "local": "1912-10-04T15:47:04+08:00", "utc": "1912-10-04T07:47:04Z", "ms": -1806423176104.4192 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-10-03", "window": { "start": { "local": "1912-10-03T23:03:48+08:00", "utc": "1912-10-03T15:03:48Z", "ms": -1806483372274.6956 }, "end": { "local": "1912-10-03T23:03:48+08:00", "utc": "1912-10-03T15:03:48Z", "ms": -1806483372274.6956 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-10-04", "window": { "start": { "local": "1912-10-05T00:12:21+08:00", "utc": "1912-10-04T16:12:21Z", "ms": -1806392858950.063 }, "end": { "local": "1912-10-05T00:12:21+08:00", "utc": "1912-10-04T16:12:21Z", "ms": -1806392858950.063 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:43 on Thu 3 Oct to 15:47 on Fri 4 Oct.", "fact": "1912-10-03T09:43:17Z → 1912-10-04T07:47:04Z" }, { "step": "kaala", "text": "Moonrise is at 23:04 on the 3rd and 00:12 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19231 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Qingyang, 1912: Thursday 3 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": "1912-10-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-03", "confidence": "determinate" } ], "quote": "In Qingyang, Mahālakṣmī Vrata Samāpana 1912 falls on Thursday 3 October. Aṣṭamī runs from 17:43 on Thu 3 Oct to 15:47 on Fri 4 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/mahalakshmi-vrata-samapana", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-10-07", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5231, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-10-06T10:59:01+08:00", "utc": "1912-10-06T02:59:01Z", "ms": -1806267658643.7808 }, "end": { "local": "1912-10-07T08:15:57+08:00", "utc": "1912-10-07T00:15:57Z", "ms": -1806191043360.789 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-06T10:59:01+08:00", "utc": "1912-10-06T02:59:01Z", "ms": -1806267658643.7808 }, "end": { "local": "1912-10-07T08:15:57+08:00", "utc": "1912-10-07T00:15:57Z", "ms": -1806191043360.789 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-10-06", "window": { "start": { "local": "1912-10-06T06:47:57+08:00", "utc": "1912-10-05T22:47:57Z", "ms": -1806282723360.3464 }, "end": { "local": "1912-10-06T06:47:57+08:00", "utc": "1912-10-05T22:47:57Z", "ms": -1806282723360.3464 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-10-07", "window": { "start": { "local": "1912-10-07T06:48:46+08:00", "utc": "1912-10-06T22:48:46Z", "ms": -1806196274048.4297 }, "end": { "local": "1912-10-07T06:48:46+08:00", "utc": "1912-10-06T22:48:46Z", "ms": -1806196274048.4297 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:59 on Sun 6 Oct to 08:16 on Mon 7 Oct.", "fact": "1912-10-06T02:59:01Z → 1912-10-07T00:15:57Z" }, { "step": "kaala", "text": "Sunrise is at 06:48 on the 6th and 06:49 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5231 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Qingyang, 1912: Monday 7 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": "1912-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-07", "confidence": "determinate" } ], "quote": "In Qingyang, Indirā Ekādaśī 1912 falls on Monday 7 October. Ekādaśī runs from 10:59 on Sun 6 Oct to 08:16 on Mon 7 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-10-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-10-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23823, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-10-08T05:27:37+08:00", "utc": "1912-10-07T21:27:37Z", "ms": -1806114742968.065 }, "end": { "local": "1912-10-09T02:40:41+08:00", "utc": "1912-10-08T18:40:41Z", "ms": -1806038358962.6357 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-08T05:27:37+08:00", "utc": "1912-10-07T21:27:37Z", "ms": -1806114742968.065 }, "end": { "local": "1912-10-09T02:40:41+08:00", "utc": "1912-10-08T18:40:41Z", "ms": -1806038358962.6357 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-10-07", "window": { "start": { "local": "1912-10-07T18:25:31+08:00", "utc": "1912-10-07T10:25:31Z", "ms": -1806154469331.5957 }, "end": { "local": "1912-10-07T20:04:43+08:00", "utc": "1912-10-07T12:04:43Z", "ms": -1806148516677.3176 } }, "covered_min": 0, "window_min": 99, "qualifies": false }, { "local_date": "1912-10-08", "window": { "start": { "local": "1912-10-08T18:24:07+08:00", "utc": "1912-10-08T10:24:07Z", "ms": -1806068152814.441 }, "end": { "local": "1912-10-08T20:03:38+08:00", "utc": "1912-10-08T12:03:38Z", "ms": -1806062182370.3884 } }, "covered_min": 100, "window_min": 100, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:28 on Tue 8 Oct to 02:41 on Wed 9 Oct.", "fact": "1912-10-07T21:27:37Z → 1912-10-08T18:40:41Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:26–20:05 on the 7th, 18:24–20:04 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 99 minutes on the 7th and 100 of 100 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23823 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Tuesday 8 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": "1912-10-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-08", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Tuesday 8 October. Trayodaśī runs from 05:28 on Tue 8 Oct to 02:41 on Wed 9 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-10-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-10-08", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-08", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 636, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-10-09T02:40:41+08:00", "utc": "1912-10-08T18:40:41Z", "ms": -1806038358962.6357 }, "end": { "local": "1912-10-10T00:02:24+08:00", "utc": "1912-10-09T16:02:24Z", "ms": -1805961455823.3176 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-09T02:40:41+08:00", "utc": "1912-10-08T18:40:41Z", "ms": -1806038358962.6357 }, "end": { "local": "1912-10-10T00:02:24+08:00", "utc": "1912-10-09T16:02:24Z", "ms": -1805961455823.3176 } }, "kaala": "nishita", "days": [ { "local_date": "1912-10-08", "window": { "start": { "local": "1912-10-09T00:13:16+08:00", "utc": "1912-10-08T16:13:16Z", "ms": -1806047203649.2441 }, "end": { "local": "1912-10-09T01:01:16+08:00", "utc": "1912-10-08T17:01:16Z", "ms": -1806044323649.2441 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-10-09", "window": { "start": { "local": "1912-10-10T00:13:00+08:00", "utc": "1912-10-09T16:13:00Z", "ms": -1805960819984.606 }, "end": { "local": "1912-10-10T01:01:00+08:00", "utc": "1912-10-09T17:01:00Z", "ms": -1805957939984.606 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:41 on Wed 9 Oct to 00:02 on Thu 10 Oct.", "fact": "1912-10-08T18:40:41Z → 1912-10-09T16:02:24Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:13–01:01 on the 8th, 00:13–01:01 on the 9th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 636 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Tuesday 8 October.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-10-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-08", "confidence": "boundary" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Tuesday 8 October. Caturdaśī runs from 02:41 on Wed 9 Oct to 00:02 on Thu 10 Oct, and reaches niśītha on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-10-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20223, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1912-10-10T00:02:24+08:00", "utc": "1912-10-09T16:02:24Z", "ms": -1805961455823.3176 }, "end": { "local": "1912-10-10T21:40:24+08:00", "utc": "1912-10-10T13:40:24Z", "ms": -1805883576378.93 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-10T00:02:24+08:00", "utc": "1912-10-09T16:02:24Z", "ms": -1805961455823.3176 }, "end": { "local": "1912-10-10T21:40:24+08:00", "utc": "1912-10-10T13:40:24Z", "ms": -1805883576378.93 } }, "kaala": "aparahna", "days": [ { "local_date": "1912-10-09", "window": { "start": { "local": "1912-10-09T13:45:49+08:00", "utc": "1912-10-09T05:45:49Z", "ms": -1805998451240.9453 }, "end": { "local": "1912-10-09T16:04:17+08:00", "utc": "1912-10-09T08:04:17Z", "ms": -1805990143493.2446 } }, "covered_min": 0, "window_min": 138, "qualifies": false }, { "local_date": "1912-10-10", "window": { "start": { "local": "1912-10-10T13:45:19+08:00", "utc": "1912-10-10T05:45:19Z", "ms": -1805912080547.8408 }, "end": { "local": "1912-10-10T16:03:21+08:00", "utc": "1912-10-10T08:03:21Z", "ms": -1805903799322.565 } }, "covered_min": 138, "window_min": 138, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 00:02 on Thu 10 Oct to 21:40 on Thu 10 Oct.", "fact": "1912-10-09T16:02:24Z → 1912-10-10T13:40:24Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:46–16:04 on the 9th, 13:45–16:03 on the 10th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 0 of 138 minutes on the 9th and 138 of 138 on the 10th.", "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 20223 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Qingyang, 1912: Thursday 10 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": "1912-10-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-10", "confidence": "determinate" } ], "quote": "In Qingyang, Mahālaya Amāvāsyā 1912 falls on Thursday 10 October. Amāvasyā runs from 00:02 on Thu 10 Oct to 21:40 on Thu 10 Oct and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/qingyang/festivals/1912/mahalaya-amavasya", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24135, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1912-10-10T21:40:24+08:00", "utc": "1912-10-10T13:40:24Z", "ms": -1805883576378.93 }, "end": { "local": "1912-10-11T19:42:18+08:00", "utc": "1912-10-11T11:42:18Z", "ms": -1805804262196.0684 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-10T21:40:24+08:00", "utc": "1912-10-10T13:40:24Z", "ms": -1805883576378.93 }, "end": { "local": "1912-10-11T19:42:18+08:00", "utc": "1912-10-11T11:42:18Z", "ms": -1805804262196.0684 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-10-10", "window": { "start": { "local": "1912-10-10T12:12:19+08:00", "utc": "1912-10-10T04:12:19Z", "ms": -1805917661160.4785 }, "end": { "local": "1912-10-10T13:00:19+08:00", "utc": "1912-10-10T05:00:19Z", "ms": -1805914781160.4785 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-10-11", "window": { "start": { "local": "1912-10-11T12:12:03+08:00", "utc": "1912-10-11T04:12:03Z", "ms": -1805831276741.5398 }, "end": { "local": "1912-10-11T13:00:03+08:00", "utc": "1912-10-11T05:00:03Z", "ms": -1805828396741.5398 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 21:40 on Thu 10 Oct to 19:42 on Fri 11 Oct.", "fact": "1912-10-10T13:40:24Z → 1912-10-11T11:42:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 10th, 12:12–13:00 on the 11th.", "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 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24135 s" }, { "step": "ruling", "text": "Navarātrārambha, Qingyang, 1912: Friday 11 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": "1912-10-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-11", "confidence": "determinate" } ], "quote": "In Qingyang, Navarātrārambha (Navratri) 1912 falls on Friday 11 October. Pratipadā runs from 21:40 on Thu 10 Oct to 19:42 on Fri 11 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/navaratra-arambha", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-10-14", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15487, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-10-13T17:25:35+08:00", "utc": "1912-10-13T09:25:35Z", "ms": -1805639664525.0771 }, "end": { "local": "1912-10-14T17:17:26+08:00", "utc": "1912-10-14T09:17:26Z", "ms": -1805553753729.6064 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-13T17:25:35+08:00", "utc": "1912-10-13T09:25:35Z", "ms": -1805639664525.0771 }, "end": { "local": "1912-10-14T17:17:26+08:00", "utc": "1912-10-14T09:17:26Z", "ms": -1805553753729.6064 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-10-13", "window": { "start": { "local": "1912-10-13T12:11:34+08:00", "utc": "1912-10-13T04:11:34Z", "ms": -1805658506450.3901 }, "end": { "local": "1912-10-13T12:59:34+08:00", "utc": "1912-10-13T04:59:34Z", "ms": -1805655626450.3901 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-10-14", "window": { "start": { "local": "1912-10-14T12:11:19+08:00", "utc": "1912-10-14T04:11:19Z", "ms": -1805572120547.9473 }, "end": { "local": "1912-10-14T12:59:19+08:00", "utc": "1912-10-14T04:59:19Z", "ms": -1805569240547.9473 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:26 on Sun 13 Oct to 17:17 on Mon 14 Oct.", "fact": "1912-10-13T09:25:35Z → 1912-10-14T09:17:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 13th, 12:11–12:59 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15487 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1912: Monday 14 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": "1912-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-14", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1912 falls on Monday 14 October. Caturthī runs from 17:26 on Sun 13 Oct to 17:17 on Mon 14 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-10-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35893, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1912-10-16T19:08:37+08:00", "utc": "1912-10-16T11:08:37Z", "ms": -1805374283373.4265 }, "end": { "local": "1912-10-17T20:59:57+08:00", "utc": "1912-10-17T12:59:57Z", "ms": -1805281202894.019 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-16T19:08:37+08:00", "utc": "1912-10-16T11:08:37Z", "ms": -1805374283373.4265 }, "end": { "local": "1912-10-17T20:59:57+08:00", "utc": "1912-10-17T12:59:57Z", "ms": -1805281202894.019 } }, "kaala": "udaya-1", "days": [ { "local_date": "1912-10-17", "window": { "start": { "local": "1912-10-17T06:57:17+08:00", "utc": "1912-10-16T22:57:17Z", "ms": -1805331763277.7986 }, "end": { "local": "1912-10-17T07:42:16+08:00", "utc": "1912-10-16T23:42:16Z", "ms": -1805329064123.885 } }, "covered_min": 45, "window_min": 45, "qualifies": true }, { "local_date": "1912-10-18", "window": { "start": { "local": "1912-10-18T06:58:10+08:00", "utc": "1912-10-17T22:58:10Z", "ms": -1805245310389.222 }, "end": { "local": "1912-10-18T07:43:00+08:00", "utc": "1912-10-17T23:43:00Z", "ms": -1805242619873.5044 } }, "covered_min": 0, "window_min": 45, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 19:09 on Wed 16 Oct to 21:00 on Thu 17 Oct.", "fact": "1912-10-16T11:08:37Z → 1912-10-17T12:59:57Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:57–07:42 on the 17th, 06:58–07:43 on the 18th.", "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 45 of 45 minutes on the 17th and 0 of 45 on the 18th.", "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 35893 s" }, { "step": "ruling", "text": "Durgā Saptamī, Qingyang, 1912: Thursday 17 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": "1912-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-17", "confidence": "determinate" } ], "quote": "In Qingyang, Durgā Saptamī 1912 falls on Thursday 17 October. Saptamī runs from 19:09 on Wed 16 Oct to 21:00 on Thu 17 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/qingyang/festivals/1912/durga-saptami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28877, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1912-10-17T20:59:57+08:00", "utc": "1912-10-17T12:59:57Z", "ms": -1805281202894.019 }, "end": { "local": "1912-10-18T23:16:36+08:00", "utc": "1912-10-18T15:16:36Z", "ms": -1805186604464.492 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-17T20:59:57+08:00", "utc": "1912-10-17T12:59:57Z", "ms": -1805281202894.019 }, "end": { "local": "1912-10-18T23:16:36+08:00", "utc": "1912-10-18T15:16:36Z", "ms": -1805186604464.492 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-10-17", "window": { "start": { "local": "1912-10-17T12:10:40+08:00", "utc": "1912-10-17T04:10:40Z", "ms": -1805312959623.4463 }, "end": { "local": "1912-10-17T12:58:40+08:00", "utc": "1912-10-17T04:58:40Z", "ms": -1805310079623.4463 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-10-18", "window": { "start": { "local": "1912-10-18T12:10:28+08:00", "utc": "1912-10-18T04:10:28Z", "ms": -1805226571521.3413 }, "end": { "local": "1912-10-18T12:58:28+08:00", "utc": "1912-10-18T04:58:28Z", "ms": -1805223691521.3413 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 21:00 on Thu 17 Oct to 23:17 on Fri 18 Oct.", "fact": "1912-10-17T12:59:57Z → 1912-10-18T15:16:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:11–12:59 on the 17th, 12:10–12:58 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28877 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Qingyang, 1912: Friday 18 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": "1912-10-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-18", "confidence": "determinate" } ], "quote": "In Qingyang, Mahāṣṭamī (Durga Ashtami) 1912 falls on Friday 18 October. Aṣṭamī runs from 21:00 on Thu 17 Oct to 23:17 on Fri 18 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/mahashtami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37087, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1912-10-18T23:16:36+08:00", "utc": "1912-10-18T15:16:36Z", "ms": -1805186604464.492 }, "end": { "local": "1912-10-20T01:45:50+08:00", "utc": "1912-10-19T17:45:50Z", "ms": -1805091249631.3323 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-18T23:16:36+08:00", "utc": "1912-10-18T15:16:36Z", "ms": -1805186604464.492 }, "end": { "local": "1912-10-20T01:45:50+08:00", "utc": "1912-10-19T17:45:50Z", "ms": -1805091249631.3323 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-10-18", "window": { "start": { "local": "1912-10-18T12:10:28+08:00", "utc": "1912-10-18T04:10:28Z", "ms": -1805226571521.3413 }, "end": { "local": "1912-10-18T12:58:28+08:00", "utc": "1912-10-18T04:58:28Z", "ms": -1805223691521.3413 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-10-19", "window": { "start": { "local": "1912-10-19T12:10:17+08:00", "utc": "1912-10-19T04:10:17Z", "ms": -1805140182827.5298 }, "end": { "local": "1912-10-19T12:58:17+08:00", "utc": "1912-10-19T04:58:17Z", "ms": -1805137302827.5298 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 23:17 on Fri 18 Oct to 01:46 on Sun 20 Oct.", "fact": "1912-10-18T15:16:36Z → 1912-10-19T17:45:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 18th, 12:10–12:58 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 37087 s" }, { "step": "ruling", "text": "Mahānavamī, Qingyang, 1912: Saturday 19 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": "1912-10-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-19", "confidence": "determinate" } ], "quote": "In Qingyang, Mahānavamī 1912 falls on Saturday 19 October. Navamī runs from 23:17 on Fri 18 Oct to 01:46 on Sun 20 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/mahanavami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4296, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1912-10-20T01:45:50+08:00", "utc": "1912-10-19T17:45:50Z", "ms": -1805091249631.3323 }, "end": { "local": "1912-10-21T04:13:55+08:00", "utc": "1912-10-20T20:13:55Z", "ms": -1804995964832.38 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-20T01:45:50+08:00", "utc": "1912-10-19T17:45:50Z", "ms": -1805091249631.3323 }, "end": { "local": "1912-10-21T04:13:55+08:00", "utc": "1912-10-20T20:13:55Z", "ms": -1804995964832.38 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-10-20", "window": { "start": { "local": "1912-10-20T12:10:06+08:00", "utc": "1912-10-20T04:10:06Z", "ms": -1805053793524.9575 }, "end": { "local": "1912-10-20T12:58:06+08:00", "utc": "1912-10-20T04:58:06Z", "ms": -1805050913524.9575 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-10-21", "window": { "start": { "local": "1912-10-21T12:09:56+08:00", "utc": "1912-10-21T04:09:56Z", "ms": -1804967403596.4968 }, "end": { "local": "1912-10-21T12:57:56+08:00", "utc": "1912-10-21T04:57:56Z", "ms": -1804964523596.4968 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 01:46 on Sun 20 Oct to 04:14 on Mon 21 Oct.", "fact": "1912-10-19T17:45:50Z → 1912-10-20T20:13:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 20th, 12:10–12:58 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Daśamī touches Śravaṇa in the day time on neither day, so the rest of the rule applies. Daśamī 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: unstated → only-day · margin 4296 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Qingyang, 1912: Sunday 20 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": "1912-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-20", "confidence": "determinate" } ], "quote": "In Qingyang, Vijayā Daśamī (Dussehra) 1912 falls on Sunday 20 October. Daśamī touches Śravaṇa in the day time on neither day, so madhyāhna decides. Daśamī runs from 01:46 on Sun 20 Oct to 04:14 on Mon 21 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vijaya-dashami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-10-21", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2027, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-10-21T04:13:55+08:00", "utc": "1912-10-20T20:13:55Z", "ms": -1804995964832.38 }, "end": { "local": "1912-10-22T06:27:58+08:00", "utc": "1912-10-21T22:27:58Z", "ms": -1804901521947.8386 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-21T04:13:55+08:00", "utc": "1912-10-20T20:13:55Z", "ms": -1804995964832.38 }, "end": { "local": "1912-10-22T06:27:58+08:00", "utc": "1912-10-21T22:27:58Z", "ms": -1804901521947.8386 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-10-21", "window": { "start": { "local": "1912-10-21T07:00:50+08:00", "utc": "1912-10-20T23:00:50Z", "ms": -1804985949690.2432 }, "end": { "local": "1912-10-21T07:00:50+08:00", "utc": "1912-10-20T23:00:50Z", "ms": -1804985949690.2432 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-10-22", "window": { "start": { "local": "1912-10-22T07:01:45+08:00", "utc": "1912-10-21T23:01:45Z", "ms": -1804899495439.6445 }, "end": { "local": "1912-10-22T07:01:45+08:00", "utc": "1912-10-21T23:01:45Z", "ms": -1804899495439.6445 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:14 on Mon 21 Oct to 06:28 on Tue 22 Oct.", "fact": "1912-10-20T20:13:55Z → 1912-10-21T22:27:58Z" }, { "step": "kaala", "text": "Sunrise is at 07:01 on the 21st and 07:02 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 21st and is not on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2027 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Qingyang, 1912: Monday 21 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": "1912-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-21", "confidence": "determinate" } ], "quote": "In Qingyang, Pāśāṅkuśā Ekādaśī 1912 falls on Monday 21 October. Ekādaśī runs from 04:14 on Mon 21 Oct to 06:28 on Tue 22 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-10-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-10-23", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30431, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-10-23T08:17:41+08:00", "utc": "1912-10-23T00:17:41Z", "ms": -1804808538996.5017 }, "end": { "local": "1912-10-24T09:36:15+08:00", "utc": "1912-10-24T01:36:15Z", "ms": -1804717424884.3342 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1912-10-23T08:17:41+08:00", "utc": "1912-10-23T00:17:41Z", "ms": -1804808538996.5017 }, "end": { "local": "1912-10-24T09:36:15+08:00", "utc": "1912-10-24T01:36:15Z", "ms": -1804717424884.3342 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-10-23", "window": { "start": { "local": "1912-10-23T18:04:37+08:00", "utc": "1912-10-23T10:04:37Z", "ms": -1804773322742.1584 }, "end": { "local": "1912-10-23T19:48:29+08:00", "utc": "1912-10-23T11:48:29Z", "ms": -1804767091163.4749 } }, "covered_min": 104, "window_min": 104, "qualifies": true }, { "local_date": "1912-10-24", "window": { "start": { "local": "1912-10-24T18:03:26+08:00", "utc": "1912-10-24T10:03:26Z", "ms": -1804686993865.252 }, "end": { "local": "1912-10-24T19:47:35+08:00", "utc": "1912-10-24T11:47:35Z", "ms": -1804680745431.52 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:18 on Wed 23 Oct to 09:36 on Thu 24 Oct.", "fact": "1912-10-23T00:17:41Z → 1912-10-24T01:36:15Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:05–19:48 on the 23rd, 18:03–19:48 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 104 of 104 minutes on the 23rd and 0 of 104 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30431 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Wednesday 23 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": "1912-10-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-23", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Wednesday 23 October. Trayodaśī runs from 08:18 on Wed 23 Oct to 09:36 on Thu 24 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-10-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37801, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-10-29T08:03:06+08:00", "utc": "1912-10-29T00:03:06Z", "ms": -1804291014385.8108 }, "end": { "local": "1912-10-30T06:30:01+08:00", "utc": "1912-10-29T22:30:01Z", "ms": -1804210199381.2673 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-10-29T08:03:06+08:00", "utc": "1912-10-29T00:03:06Z", "ms": -1804291014385.8108 }, "end": { "local": "1912-10-30T06:30:01+08:00", "utc": "1912-10-29T22:30:01Z", "ms": -1804210199381.2673 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-10-28", "window": { "start": { "local": "1912-10-28T19:12:10+08:00", "utc": "1912-10-28T11:12:10Z", "ms": -1804337270151.1763 }, "end": { "local": "1912-10-28T19:12:10+08:00", "utc": "1912-10-28T11:12:10Z", "ms": -1804337270151.1763 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-10-29", "window": { "start": { "local": "1912-10-29T20:00:00+08:00", "utc": "1912-10-29T12:00:00Z", "ms": -1804248000437.0198 }, "end": { "local": "1912-10-29T20:00:00+08:00", "utc": "1912-10-29T12:00:00Z", "ms": -1804248000437.0198 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:03 on Tue 29 Oct to 06:30 on Wed 30 Oct.", "fact": "1912-10-29T00:03:06Z → 1912-10-29T22:30:01Z" }, { "step": "kaala", "text": "Moonrise is at 19:12 on the 28th and 20:00 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 37801 s" }, { "step": "ruling", "text": "Karaka Caturthī, Qingyang, 1912: Tuesday 29 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "karaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Karaka caturthi (current at moon-rise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-10-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-29", "confidence": "determinate" } ], "quote": "In Qingyang, Karaka Caturthī (Karwa Chauth) 1912 falls on Tuesday 29 October. Caturthī runs from 08:03 on Tue 29 Oct to 06:30 on Wed 30 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/karaka-chaturthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-10-29", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-10-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37801, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-10-29T08:03:06+08:00", "utc": "1912-10-29T00:03:06Z", "ms": -1804291014385.8108 }, "end": { "local": "1912-10-30T06:30:01+08:00", "utc": "1912-10-29T22:30:01Z", "ms": -1804210199381.2673 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-10-29T08:03:06+08:00", "utc": "1912-10-29T00:03:06Z", "ms": -1804291014385.8108 }, "end": { "local": "1912-10-30T06:30:01+08:00", "utc": "1912-10-29T22:30:01Z", "ms": -1804210199381.2673 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-10-28", "window": { "start": { "local": "1912-10-28T19:12:10+08:00", "utc": "1912-10-28T11:12:10Z", "ms": -1804337270151.1763 }, "end": { "local": "1912-10-28T19:12:10+08:00", "utc": "1912-10-28T11:12:10Z", "ms": -1804337270151.1763 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-10-29", "window": { "start": { "local": "1912-10-29T20:00:00+08:00", "utc": "1912-10-29T12:00:00Z", "ms": -1804248000437.0198 }, "end": { "local": "1912-10-29T20:00:00+08:00", "utc": "1912-10-29T12:00:00Z", "ms": -1804248000437.0198 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:03 on Tue 29 Oct to 06:30 on Wed 30 Oct.", "fact": "1912-10-29T00:03:06Z → 1912-10-29T22:30:01Z" }, { "step": "kaala", "text": "Moonrise is at 19:12 on the 28th and 20:00 on the 29th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37801 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Tuesday 29 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": "1912-10-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-10-29", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Tuesday 29 October. Caturthī runs from 08:03 on Tue 29 Oct to 06:30 on Wed 30 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-10-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-01", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 5132, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1912-11-02T00:41:07+08:00", "utc": "1912-11-01T16:41:07Z", "ms": -1803971933422.7915 }, "end": { "local": "1912-11-02T22:33:22+08:00", "utc": "1912-11-02T14:33:22Z", "ms": -1803893198215.7908 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-02T00:41:07+08:00", "utc": "1912-11-01T16:41:07Z", "ms": -1803971933422.7915 }, "end": { "local": "1912-11-02T22:33:22+08:00", "utc": "1912-11-02T14:33:22Z", "ms": -1803893198215.7908 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-11-01", "window": { "start": { "local": "1912-11-01T23:15:35+08:00", "utc": "1912-11-01T15:15:35Z", "ms": -1803977064940.105 }, "end": { "local": "1912-11-01T23:15:35+08:00", "utc": "1912-11-01T15:15:35Z", "ms": -1803977064940.105 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-11-02", "window": { "start": { "local": "1912-11-03T00:28:37+08:00", "utc": "1912-11-02T16:28:37Z", "ms": -1803886283482.1592 }, "end": { "local": "1912-11-03T00:28:37+08:00", "utc": "1912-11-02T16:28:37Z", "ms": -1803886283482.1592 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:41 on Sat 2 Nov to 22:33 on Sat 2 Nov.", "fact": "1912-11-01T16:41:07Z → 1912-11-02T14:33:22Z" }, { "step": "kaala", "text": "Moonrise is at 23:16 on the 1st and 00:29 on the 2nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not 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": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 5132 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Qingyang, 1912: Friday 1 November.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "1912-11-01", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-01", "confidence": "boundary" } ], "quote": "In Qingyang, Ahoyī Aṣṭamī 1912 falls on Friday 1 November. Aṣṭamī runs from 00:41 on Sat 2 Nov to 22:33 on Sat 2 Nov, and is current at moonrise on neither day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ahoyi-ashtami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-11-05", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32382, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-11-04T18:17:27+08:00", "utc": "1912-11-04T10:17:27Z", "ms": -1803735752538.4146 }, "end": { "local": "1912-11-05T16:14:42+08:00", "utc": "1912-11-05T08:14:42Z", "ms": -1803656718125.6707 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-04T18:17:27+08:00", "utc": "1912-11-04T10:17:27Z", "ms": -1803735752538.4146 }, "end": { "local": "1912-11-05T16:14:42+08:00", "utc": "1912-11-05T08:14:42Z", "ms": -1803656718125.6707 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-11-04", "window": { "start": { "local": "1912-11-04T07:14:01+08:00", "utc": "1912-11-03T23:14:01Z", "ms": -1803775558895.7214 }, "end": { "local": "1912-11-04T07:14:01+08:00", "utc": "1912-11-03T23:14:01Z", "ms": -1803775558895.7214 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-11-05", "window": { "start": { "local": "1912-11-05T07:15:00+08:00", "utc": "1912-11-04T23:15:00Z", "ms": -1803689099996.237 }, "end": { "local": "1912-11-05T07:15:00+08:00", "utc": "1912-11-04T23:15:00Z", "ms": -1803689099996.237 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:17 on Mon 4 Nov to 16:15 on Tue 5 Nov.", "fact": "1912-11-04T10:17:27Z → 1912-11-05T08:14:42Z" }, { "step": "kaala", "text": "Sunrise is at 07:14 on the 4th and 07:15 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 4th and is on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32382 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Qingyang, 1912: Tuesday 5 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": "1912-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-05", "confidence": "determinate" } ], "quote": "In Qingyang, Ramā Ekādaśī 1912 falls on Tuesday 5 November. Ekādaśī runs from 18:17 on Mon 4 Nov to 16:15 on Tue 5 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-11-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5762, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1912-11-05T16:14:42+08:00", "utc": "1912-11-05T08:14:42Z", "ms": -1803656718125.6707 }, "end": { "local": "1912-11-06T14:19:40+08:00", "utc": "1912-11-06T06:19:40Z", "ms": -1803577219864.0747 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-05T16:14:42+08:00", "utc": "1912-11-05T08:14:42Z", "ms": -1803656718125.6707 }, "end": { "local": "1912-11-06T14:19:40+08:00", "utc": "1912-11-06T06:19:40Z", "ms": -1803577219864.0747 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-11-05", "window": { "start": { "local": "1912-11-05T17:50:44+08:00", "utc": "1912-11-05T09:50:44Z", "ms": -1803650956330.7173 }, "end": { "local": "1912-11-05T19:38:06+08:00", "utc": "1912-11-05T11:38:06Z", "ms": -1803644514265.4023 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1912-11-06", "window": { "start": { "local": "1912-11-06T17:49:49+08:00", "utc": "1912-11-06T09:49:49Z", "ms": -1803564611267.3916 }, "end": { "local": "1912-11-06T19:37:26+08:00", "utc": "1912-11-06T11:37:26Z", "ms": -1803558153958.6765 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 16:15 on Tue 5 Nov to 14:20 on Wed 6 Nov.", "fact": "1912-11-05T08:14:42Z → 1912-11-06T06:19:40Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:51–19:38 on the 5th, 17:50–19:37 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 107 of 107 minutes on the 5th and 0 of 108 on the 6th.", "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 5762 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Qingyang, 1912: Tuesday 5 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": "1912-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-05", "confidence": "determinate" } ], "quote": "In Qingyang, Govatsa Dvādaśī (Vasu Baras) 1912 falls on Tuesday 5 November. Dvādaśī runs from 16:15 on Tue 5 Nov to 14:20 on Wed 6 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/govatsa-dvadashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12609, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-11-06T14:19:40+08:00", "utc": "1912-11-06T06:19:40Z", "ms": -1803577219864.0747 }, "end": { "local": "1912-11-07T12:36:23+08:00", "utc": "1912-11-07T04:36:23Z", "ms": -1803497016843.5776 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-06T14:19:40+08:00", "utc": "1912-11-06T06:19:40Z", "ms": -1803577219864.0747 }, "end": { "local": "1912-11-07T12:36:23+08:00", "utc": "1912-11-07T04:36:23Z", "ms": -1803497016843.5776 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-11-06", "window": { "start": { "local": "1912-11-06T17:49:49+08:00", "utc": "1912-11-06T09:49:49Z", "ms": -1803564611267.3916 }, "end": { "local": "1912-11-06T19:37:26+08:00", "utc": "1912-11-06T11:37:26Z", "ms": -1803558153958.6765 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1912-11-07", "window": { "start": { "local": "1912-11-07T17:48:55+08:00", "utc": "1912-11-07T09:48:55Z", "ms": -1803478264734.9646 }, "end": { "local": "1912-11-07T19:36:48+08:00", "utc": "1912-11-07T11:36:48Z", "ms": -1803471792350.8848 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:20 on Wed 6 Nov to 12:36 on Thu 7 Nov.", "fact": "1912-11-06T06:19:40Z → 1912-11-07T04:36:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:50–19:37 on the 6th, 17:49–19:37 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 108 of 108 minutes on the 6th and 0 of 108 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12609 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Qingyang, 1912: Wednesday 6 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": "1912-11-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-06", "confidence": "determinate" } ], "quote": "In Qingyang, Yama Dīpadāna 1912 falls on Wednesday 6 November. Trayodaśī runs from 14:20 on Wed 6 Nov to 12:36 on Thu 7 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/yama-dipadana", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-11-06", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12609, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-11-06T14:19:40+08:00", "utc": "1912-11-06T06:19:40Z", "ms": -1803577219864.0747 }, "end": { "local": "1912-11-07T12:36:23+08:00", "utc": "1912-11-07T04:36:23Z", "ms": -1803497016843.5776 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-06T14:19:40+08:00", "utc": "1912-11-06T06:19:40Z", "ms": -1803577219864.0747 }, "end": { "local": "1912-11-07T12:36:23+08:00", "utc": "1912-11-07T04:36:23Z", "ms": -1803497016843.5776 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-11-06", "window": { "start": { "local": "1912-11-06T17:49:49+08:00", "utc": "1912-11-06T09:49:49Z", "ms": -1803564611267.3916 }, "end": { "local": "1912-11-06T19:37:26+08:00", "utc": "1912-11-06T11:37:26Z", "ms": -1803558153958.6765 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1912-11-07", "window": { "start": { "local": "1912-11-07T17:48:55+08:00", "utc": "1912-11-07T09:48:55Z", "ms": -1803478264734.9646 }, "end": { "local": "1912-11-07T19:36:48+08:00", "utc": "1912-11-07T11:36:48Z", "ms": -1803471792350.8848 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:20 on Wed 6 Nov to 12:36 on Thu 7 Nov.", "fact": "1912-11-06T06:19:40Z → 1912-11-07T04:36:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:50–19:37 on the 6th, 17:49–19:37 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 108 of 108 minutes on the 6th and 0 of 108 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12609 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Wednesday 6 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": "1912-11-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-06", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Wednesday 6 November. Trayodaśī runs from 14:20 on Wed 6 Nov to 12:36 on Thu 7 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-11-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-11-07", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36728, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-11-07T12:36:23+08:00", "utc": "1912-11-07T04:36:23Z", "ms": -1803497016843.5776 }, "end": { "local": "1912-11-08T11:09:35+08:00", "utc": "1912-11-08T03:09:35Z", "ms": -1803415825268.2568 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-07T12:36:23+08:00", "utc": "1912-11-07T04:36:23Z", "ms": -1803497016843.5776 }, "end": { "local": "1912-11-08T11:09:35+08:00", "utc": "1912-11-08T03:09:35Z", "ms": -1803415825268.2568 } }, "kaala": "nishita", "days": [ { "local_date": "1912-11-06", "window": { "start": { "local": "1912-11-07T00:09:24+08:00", "utc": "1912-11-06T16:09:24Z", "ms": -1803541836359.7097 }, "end": { "local": "1912-11-07T00:57:24+08:00", "utc": "1912-11-06T16:57:24Z", "ms": -1803538956359.7097 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-11-07", "window": { "start": { "local": "1912-11-08T00:09:27+08:00", "utc": "1912-11-07T16:09:27Z", "ms": -1803455433294.665 }, "end": { "local": "1912-11-08T00:57:27+08:00", "utc": "1912-11-07T16:57:27Z", "ms": -1803452553294.665 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:36 on Thu 7 Nov to 11:10 on Fri 8 Nov.", "fact": "1912-11-07T04:36:23Z → 1912-11-08T03:09:35Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:09–00:57 on the 6th, 00:09–00:57 on the 7th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36728 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Thursday 7 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": "1912-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-07", "confidence": "determinate" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Thursday 7 November. Caturdaśī runs from 12:36 on Thu 7 Nov to 11:10 on Fri 8 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-11-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13897, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-11-07T12:36:23+08:00", "utc": "1912-11-07T04:36:23Z", "ms": -1803497016843.5776 }, "end": { "local": "1912-11-08T11:09:35+08:00", "utc": "1912-11-08T03:09:35Z", "ms": -1803415825268.2568 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-07T12:36:23+08:00", "utc": "1912-11-07T04:36:23Z", "ms": -1803497016843.5776 }, "end": { "local": "1912-11-08T11:09:35+08:00", "utc": "1912-11-08T03:09:35Z", "ms": -1803415825268.2568 } }, "kaala": "arunodaya", "days": [ { "local_date": "1912-11-07", "window": { "start": { "local": "1912-11-07T05:29:21+08:00", "utc": "1912-11-06T21:29:21Z", "ms": -1803522638760.743 }, "end": { "local": "1912-11-07T07:16:59+08:00", "utc": "1912-11-06T23:16:59Z", "ms": -1803516181452.0278 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "1912-11-08", "window": { "start": { "local": "1912-11-08T05:30:06+08:00", "utc": "1912-11-07T21:30:06Z", "ms": -1803436194238.4456 }, "end": { "local": "1912-11-08T07:17:58+08:00", "utc": "1912-11-07T23:17:58Z", "ms": -1803429721854.3657 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:36 on Thu 7 Nov to 11:10 on Fri 8 Nov.", "fact": "1912-11-07T04:36:23Z → 1912-11-08T03:09:35Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:29–07:17 on the 7th, 05:30–07:18 on the 8th.", "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 108 minutes on the 7th and 108 of 108 on the 8th.", "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 13897 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Qingyang, 1912: Friday 8 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-08", "confidence": "determinate" } ], "quote": "In Qingyang, Naraka Caturdaśī (Choti Diwali) 1912 falls on Friday 8 November. Caturdaśī runs from 12:36 on Thu 7 Nov to 11:10 on Fri 8 Nov and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/qingyang/festivals/1912/naraka-chaturdashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23909, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1912-11-08T11:09:35+08:00", "utc": "1912-11-08T03:09:35Z", "ms": -1803415825268.2568 }, "end": { "local": "1912-11-09T10:04:32+08:00", "utc": "1912-11-09T02:04:32Z", "ms": -1803333327921.456 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-08T11:09:35+08:00", "utc": "1912-11-08T03:09:35Z", "ms": -1803415825268.2568 }, "end": { "local": "1912-11-09T10:04:32+08:00", "utc": "1912-11-09T02:04:32Z", "ms": -1803333327921.456 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-11-08", "window": { "start": { "local": "1912-11-08T17:48:03+08:00", "utc": "1912-11-08T09:48:03Z", "ms": -1803391916706.1653 }, "end": { "local": "1912-11-08T19:36:11+08:00", "utc": "1912-11-08T11:36:11Z", "ms": -1803385429421.9329 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1912-11-09", "window": { "start": { "local": "1912-11-09T17:47:13+08:00", "utc": "1912-11-09T09:47:13Z", "ms": -1803305567154.4639 }, "end": { "local": "1912-11-09T19:35:35+08:00", "utc": "1912-11-09T11:35:35Z", "ms": -1803299065152.591 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 11:10 on Fri 8 Nov to 10:05 on Sat 9 Nov.", "fact": "1912-11-08T03:09:35Z → 1912-11-09T02:04:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:48–19:36 on the 8th, 17:47–19:36 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 108 of 108 minutes on the 8th and 0 of 108 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23909 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Qingyang, 1912: Friday 8 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": "1912-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-08", "confidence": "determinate" } ], "quote": "In Qingyang, Lakṣmī Pūjā (Diwali) 1912 falls on Friday 8 November. Amāvasyā runs from 11:10 on Fri 8 Nov to 10:05 on Sat 9 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/diwali-lakshmi-puja", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32821, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1912-11-08T11:09:35+08:00", "utc": "1912-11-08T03:09:35Z", "ms": -1803415825268.2568 }, "end": { "local": "1912-11-09T10:04:32+08:00", "utc": "1912-11-09T02:04:32Z", "ms": -1803333327921.456 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-08T11:09:35+08:00", "utc": "1912-11-08T03:09:35Z", "ms": -1803415825268.2568 }, "end": { "local": "1912-11-09T10:04:32+08:00", "utc": "1912-11-09T02:04:32Z", "ms": -1803333327921.456 } }, "kaala": "nishita", "days": [ { "local_date": "1912-11-07", "window": { "start": { "local": "1912-11-08T00:09:27+08:00", "utc": "1912-11-07T16:09:27Z", "ms": -1803455433294.665 }, "end": { "local": "1912-11-08T00:57:27+08:00", "utc": "1912-11-07T16:57:27Z", "ms": -1803452553294.665 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-11-08", "window": { "start": { "local": "1912-11-09T00:09:31+08:00", "utc": "1912-11-08T16:09:31Z", "ms": -1803369029390.2935 }, "end": { "local": "1912-11-09T00:57:31+08:00", "utc": "1912-11-08T16:57:31Z", "ms": -1803366149390.2935 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 11:10 on Fri 8 Nov to 10:05 on Sat 9 Nov.", "fact": "1912-11-08T03:09:35Z → 1912-11-09T02:04:32Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:09–00:57 on the 7th, 00:10–00:58 on the 8th.", "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 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32821 s" }, { "step": "ruling", "text": "Kālī Pūjā, Qingyang, 1912: Friday 8 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1912-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-08", "confidence": "determinate" } ], "quote": "In Qingyang, Kālī Pūjā 1912 falls on Friday 8 November. Amāvasyā runs from 11:10 on Fri 8 Nov to 10:05 on Sat 9 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/qingyang/festivals/1912/kali-puja", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7473, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1912-11-09T10:04:32+08:00", "utc": "1912-11-09T02:04:32Z", "ms": -1803333327921.456 }, "end": { "local": "1912-11-10T09:26:43+08:00", "utc": "1912-11-10T01:26:43Z", "ms": -1803249196747.1196 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-09T10:04:32+08:00", "utc": "1912-11-09T02:04:32Z", "ms": -1803333327921.456 }, "end": { "local": "1912-11-10T09:26:43+08:00", "utc": "1912-11-10T01:26:43Z", "ms": -1803249196747.1196 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-11-09", "window": { "start": { "local": "1912-11-09T12:09:05+08:00", "utc": "1912-11-09T04:09:05Z", "ms": -1803325854614.4429 }, "end": { "local": "1912-11-09T12:57:05+08:00", "utc": "1912-11-09T04:57:05Z", "ms": -1803322974614.4429 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-11-10", "window": { "start": { "local": "1912-11-10T12:09:11+08:00", "utc": "1912-11-10T04:09:11Z", "ms": -1803239449097.081 }, "end": { "local": "1912-11-10T12:57:11+08:00", "utc": "1912-11-10T04:57:11Z", "ms": -1803236569097.081 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 10:05 on Sat 9 Nov to 09:27 on Sun 10 Nov.", "fact": "1912-11-09T02:04:32Z → 1912-11-10T01:26:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 9th, 12:09–12:57 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 7473 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Qingyang, 1912: Saturday 9 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": "1912-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-09", "confidence": "determinate" } ], "quote": "In Qingyang, Govardhana Pūjā 1912 falls on Saturday 9 November. Pratipadā runs from 10:05 on Sat 9 Nov to 09:27 on Sun 10 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/govardhana-puja", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27761, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1912-11-09T10:04:32+08:00", "utc": "1912-11-09T02:04:32Z", "ms": -1803333327921.456 }, "end": { "local": "1912-11-10T09:26:43+08:00", "utc": "1912-11-10T01:26:43Z", "ms": -1803249196747.1196 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-09T10:04:32+08:00", "utc": "1912-11-09T02:04:32Z", "ms": -1803333327921.456 }, "end": { "local": "1912-11-10T09:26:43+08:00", "utc": "1912-11-10T01:26:43Z", "ms": -1803249196747.1196 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-11-09", "window": { "start": { "local": "1912-11-09T17:47:13+08:00", "utc": "1912-11-09T09:47:13Z", "ms": -1803305567154.4639 }, "end": { "local": "1912-11-09T19:35:35+08:00", "utc": "1912-11-09T11:35:35Z", "ms": -1803299065152.591 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1912-11-10", "window": { "start": { "local": "1912-11-10T17:46:24+08:00", "utc": "1912-11-10T09:46:24Z", "ms": -1803219216053.745 }, "end": { "local": "1912-11-10T19:35:00+08:00", "utc": "1912-11-10T11:35:00Z", "ms": -1803212699524.1697 } }, "covered_min": 0, "window_min": 109, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 10:05 on Sat 9 Nov to 09:27 on Sun 10 Nov.", "fact": "1912-11-09T02:04:32Z → 1912-11-10T01:26:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:47–19:36 on the 9th, 17:46–19:35 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 108 of 108 minutes on the 9th and 0 of 109 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: unstated → only-day · margin 27761 s" }, { "step": "ruling", "text": "Bali Pūjā, Qingyang, 1912: Saturday 9 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": "1912-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-09", "confidence": "determinate" } ], "quote": "In Qingyang, Bali Pūjā 1912 falls on Saturday 9 November. Pratipadā runs from 10:05 on Sat 9 Nov to 09:27 on Sun 10 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/bali-puja", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9748, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1912-11-10T09:26:43+08:00", "utc": "1912-11-10T01:26:43Z", "ms": -1803249196747.1196 }, "end": { "local": "1912-11-11T09:21:10+08:00", "utc": "1912-11-11T01:21:10Z", "ms": -1803163130006.4175 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-10T09:26:43+08:00", "utc": "1912-11-10T01:26:43Z", "ms": -1803249196747.1196 }, "end": { "local": "1912-11-11T09:21:10+08:00", "utc": "1912-11-11T01:21:10Z", "ms": -1803163130006.4175 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-11-10", "window": { "start": { "local": "1912-11-10T12:09:11+08:00", "utc": "1912-11-10T04:09:11Z", "ms": -1803239449097.081 }, "end": { "local": "1912-11-10T12:57:11+08:00", "utc": "1912-11-10T04:57:11Z", "ms": -1803236569097.081 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-11-11", "window": { "start": { "local": "1912-11-11T12:09:17+08:00", "utc": "1912-11-11T04:09:17Z", "ms": -1803153042729.9968 }, "end": { "local": "1912-11-11T12:57:17+08:00", "utc": "1912-11-11T04:57:17Z", "ms": -1803150162729.9968 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 09:27 on Sun 10 Nov to 09:21 on Mon 11 Nov.", "fact": "1912-11-10T01:26:43Z → 1912-11-11T01:21:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 10th, 12:09–12:57 on the 11th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 9748 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Qingyang, 1912: Sunday 10 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": "1912-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-10", "confidence": "determinate" } ], "quote": "In Qingyang, Yama Dvitīyā (Bhai Dooj) 1912 falls on Sunday 10 November. Dvitīyā runs from 09:27 on Sun 10 Nov to 09:21 on Mon 11 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/yama-dvitiya", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-10", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2631, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1912-11-09T10:04:32+08:00", "utc": "1912-11-09T02:04:32Z", "ms": -1803333327921.456 }, "end": { "local": "1912-11-10T09:26:43+08:00", "utc": "1912-11-10T01:26:43Z", "ms": -1803249196747.1196 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-09T10:04:32+08:00", "utc": "1912-11-09T02:04:32Z", "ms": -1803333327921.456 }, "end": { "local": "1912-11-10T09:26:43+08:00", "utc": "1912-11-10T01:26:43Z", "ms": -1803249196747.1196 } }, "kaala": "purvahna", "days": [ { "local_date": "1912-11-09", "window": { "start": { "local": "1912-11-09T07:18:58+08:00", "utc": "1912-11-08T23:18:58Z", "ms": -1803343262074.4216 }, "end": { "local": "1912-11-09T10:48:23+08:00", "utc": "1912-11-09T02:48:23Z", "ms": -1803330697101.1023 } }, "covered_min": 44, "window_min": 209, "qualifies": true }, { "local_date": "1912-11-10", "window": { "start": { "local": "1912-11-10T07:19:58+08:00", "utc": "1912-11-09T23:19:58Z", "ms": -1803256802140.417 }, "end": { "local": "1912-11-10T10:48:47+08:00", "utc": "1912-11-10T02:48:47Z", "ms": -1803244273444.8596 } }, "covered_min": 127, "window_min": 209, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 10:05 on Sat 9 Nov to 09:27 on Sun 10 Nov.", "fact": "1912-11-09T02:04:32Z → 1912-11-10T01:26:43Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:19–10:48 on the 9th, 07:20–10:49 on the 10th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 44 of 209 minutes on the 9th and 127 of 209 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both forenoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2631 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Qingyang, 1912: Sunday 10 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1912-11-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-10", "confidence": "boundary" } ], "quote": "In Qingyang, Dyūta Pratipad 1912 falls on Sunday 10 November. Pratipadā runs from 10:05 on Sat 9 Nov to 09:27 on Sun 10 Nov and covers 127 of 209 minutes of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 44 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/dyuta-pratipad", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4210, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-11-12T09:51:36+08:00", "utc": "1912-11-12T01:51:36Z", "ms": -1803074904154.2834 }, "end": { "local": "1912-11-13T10:59:23+08:00", "utc": "1912-11-13T02:59:23Z", "ms": -1802984437091.6812 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-12T09:51:36+08:00", "utc": "1912-11-12T01:51:36Z", "ms": -1803074904154.2834 }, "end": { "local": "1912-11-13T10:59:23+08:00", "utc": "1912-11-13T02:59:23Z", "ms": -1802984437091.6812 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-11-12", "window": { "start": { "local": "1912-11-12T12:09:24+08:00", "utc": "1912-11-12T04:09:24Z", "ms": -1803066635515.5513 }, "end": { "local": "1912-11-12T12:57:24+08:00", "utc": "1912-11-12T04:57:24Z", "ms": -1803063755515.5513 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-11-13", "window": { "start": { "local": "1912-11-13T12:09:33+08:00", "utc": "1912-11-13T04:09:33Z", "ms": -1802980227456.5293 }, "end": { "local": "1912-11-13T12:57:33+08:00", "utc": "1912-11-13T04:57:33Z", "ms": -1802977347456.5293 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:52 on Tue 12 Nov to 10:59 on Wed 13 Nov.", "fact": "1912-11-12T01:51:36Z → 1912-11-13T02:59:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 12th, 12:10–12:58 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4210 s" }, { "step": "ruling", "text": "Nāga Caturthī, Qingyang, 1912: Tuesday 12 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": "1912-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-12", "confidence": "determinate" } ], "quote": "In Qingyang, Nāga Caturthī 1912 falls on Tuesday 12 November. Caturthī runs from 09:52 on Tue 12 Nov to 10:59 on Wed 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/naga-chaturthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-11-12", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4210, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-11-12T09:51:36+08:00", "utc": "1912-11-12T01:51:36Z", "ms": -1803074904154.2834 }, "end": { "local": "1912-11-13T10:59:23+08:00", "utc": "1912-11-13T02:59:23Z", "ms": -1802984437091.6812 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-12T09:51:36+08:00", "utc": "1912-11-12T01:51:36Z", "ms": -1803074904154.2834 }, "end": { "local": "1912-11-13T10:59:23+08:00", "utc": "1912-11-13T02:59:23Z", "ms": -1802984437091.6812 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-11-12", "window": { "start": { "local": "1912-11-12T12:09:24+08:00", "utc": "1912-11-12T04:09:24Z", "ms": -1803066635515.5513 }, "end": { "local": "1912-11-12T12:57:24+08:00", "utc": "1912-11-12T04:57:24Z", "ms": -1803063755515.5513 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-11-13", "window": { "start": { "local": "1912-11-13T12:09:33+08:00", "utc": "1912-11-13T04:09:33Z", "ms": -1802980227456.5293 }, "end": { "local": "1912-11-13T12:57:33+08:00", "utc": "1912-11-13T04:57:33Z", "ms": -1802977347456.5293 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:52 on Tue 12 Nov to 10:59 on Wed 13 Nov.", "fact": "1912-11-12T01:51:36Z → 1912-11-13T02:59:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 12th, 12:10–12:58 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4210 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1912: Tuesday 12 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": "1912-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-12", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1912 falls on Tuesday 12 November. Caturthī runs from 09:52 on Tue 12 Nov to 10:59 on Wed 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-11-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-15", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 914, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1912-11-14T12:42:27+08:00", "utc": "1912-11-14T04:42:27Z", "ms": -1802891852770.4424 }, "end": { "local": "1912-11-15T14:54:32+08:00", "utc": "1912-11-15T06:54:32Z", "ms": -1802797528280.1003 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-14T12:42:27+08:00", "utc": "1912-11-14T04:42:27Z", "ms": -1802891852770.4424 }, "end": { "local": "1912-11-15T14:54:32+08:00", "utc": "1912-11-15T06:54:32Z", "ms": -1802797528280.1003 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-11-14", "window": { "start": { "local": "1912-11-14T12:09:41+08:00", "utc": "1912-11-14T04:09:41Z", "ms": -1802893818556.1006 }, "end": { "local": "1912-11-14T12:57:41+08:00", "utc": "1912-11-14T04:57:41Z", "ms": -1802890938556.1006 } }, "covered_min": 15, "window_min": 48, "qualifies": true }, { "local_date": "1912-11-15", "window": { "start": { "local": "1912-11-15T12:09:51+08:00", "utc": "1912-11-15T04:09:51Z", "ms": -1802807408817.8447 }, "end": { "local": "1912-11-15T12:57:51+08:00", "utc": "1912-11-15T04:57:51Z", "ms": -1802804528817.8447 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 12:42 on Thu 14 Nov to 14:55 on Fri 15 Nov.", "fact": "1912-11-14T04:42:27Z → 1912-11-15T06:54:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 14th, 12:10–12:58 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 15 of 48 minutes on the 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 914 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Qingyang, 1912: Friday 15 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1912-11-15", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-15", "confidence": "boundary" } ], "quote": "In Qingyang, Sūrya Ṣaṣṭhī (Chhath) 1912 falls on Friday 15 November. Ṣaṣṭhī runs from 12:42 on Thu 14 Nov to 14:55 on Fri 15 Nov and covers all of madhyāhna that midday. It also reaches the previous midday for 15 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/surya-shashthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16020, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1912-11-16T17:25:01+08:00", "utc": "1912-11-16T09:25:01Z", "ms": -1802702098600.486 }, "end": { "local": "1912-11-17T20:00:00+08:00", "utc": "1912-11-17T12:00:00Z", "ms": -1802606399519.1367 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-16T17:25:01+08:00", "utc": "1912-11-16T09:25:01Z", "ms": -1802702098600.486 }, "end": { "local": "1912-11-17T20:00:00+08:00", "utc": "1912-11-17T12:00:00Z", "ms": -1802606399519.1367 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-11-16", "window": { "start": { "local": "1912-11-16T12:10:02+08:00", "utc": "1912-11-16T04:10:02Z", "ms": -1802720998245.8047 }, "end": { "local": "1912-11-16T12:58:02+08:00", "utc": "1912-11-16T04:58:02Z", "ms": -1802718118245.8047 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-11-17", "window": { "start": { "local": "1912-11-17T12:10:13+08:00", "utc": "1912-11-17T04:10:13Z", "ms": -1802634586844.5442 }, "end": { "local": "1912-11-17T12:58:13+08:00", "utc": "1912-11-17T04:58:13Z", "ms": -1802631706844.5442 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:25 on Sat 16 Nov to 20:00 on Sun 17 Nov.", "fact": "1912-11-16T09:25:01Z → 1912-11-17T12:00:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 16th, 12:10–12:58 on the 17th.", "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 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: unstated → only-day · margin 16020 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Qingyang, 1912: Sunday 17 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": "1912-11-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-17", "confidence": "determinate" } ], "quote": "In Qingyang, Gopāṣṭamī 1912 falls on Sunday 17 November. Aṣṭamī runs from 17:25 on Sat 16 Nov to 20:00 on Sun 17 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/gopashtami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32689, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1912-11-17T20:00:00+08:00", "utc": "1912-11-17T12:00:00Z", "ms": -1802606399519.1367 }, "end": { "local": "1912-11-18T22:24:10+08:00", "utc": "1912-11-18T14:24:10Z", "ms": -1802511350435.964 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-17T20:00:00+08:00", "utc": "1912-11-17T12:00:00Z", "ms": -1802606399519.1367 }, "end": { "local": "1912-11-18T22:24:10+08:00", "utc": "1912-11-18T14:24:10Z", "ms": -1802511350435.964 } }, "kaala": "purvahna", "days": [ { "local_date": "1912-11-18", "window": { "start": { "local": "1912-11-18T07:27:59+08:00", "utc": "1912-11-17T23:27:59Z", "ms": -1802565120846.2988 }, "end": { "local": "1912-11-18T10:52:17+08:00", "utc": "1912-11-18T02:52:17Z", "ms": -1802552863361.5554 } }, "covered_min": 204, "window_min": 204, "qualifies": true }, { "local_date": "1912-11-19", "window": { "start": { "local": "1912-11-19T07:28:59+08:00", "utc": "1912-11-18T23:28:59Z", "ms": -1802478660950.681 }, "end": { "local": "1912-11-19T10:52:45+08:00", "utc": "1912-11-19T02:52:45Z", "ms": -1802466434700.497 } }, "covered_min": 0, "window_min": 204, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 20:00 on Sun 17 Nov to 22:24 on Mon 18 Nov.", "fact": "1912-11-17T12:00:00Z → 1912-11-18T14:24:10Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 07:28–10:52 on the 18th, 07:29–10:53 on the 19th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 204 of 204 minutes on the 18th and 0 of 204 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32689 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Qingyang, 1912: Monday 18 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": "1912-11-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-18", "confidence": "determinate" } ], "quote": "In Qingyang, Akṣaya Navamī (Amla Navami) 1912 falls on Monday 18 November. Navamī runs from 20:00 on Sun 17 Nov to 22:24 on Mon 18 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/qingyang/festivals/1912/akshaya-navami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25307, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1912-11-17T20:00:00+08:00", "utc": "1912-11-17T12:00:00Z", "ms": -1802606399519.1367 }, "end": { "local": "1912-11-18T22:24:10+08:00", "utc": "1912-11-18T14:24:10Z", "ms": -1802511350435.964 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-17T20:00:00+08:00", "utc": "1912-11-17T12:00:00Z", "ms": -1802606399519.1367 }, "end": { "local": "1912-11-18T22:24:10+08:00", "utc": "1912-11-18T14:24:10Z", "ms": -1802511350435.964 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-11-17", "window": { "start": { "local": "1912-11-17T12:10:13+08:00", "utc": "1912-11-17T04:10:13Z", "ms": -1802634586844.5442 }, "end": { "local": "1912-11-17T12:58:13+08:00", "utc": "1912-11-17T04:58:13Z", "ms": -1802631706844.5442 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-11-18", "window": { "start": { "local": "1912-11-18T12:10:25+08:00", "utc": "1912-11-18T04:10:25Z", "ms": -1802548174619.1838 }, "end": { "local": "1912-11-18T12:58:25+08:00", "utc": "1912-11-18T04:58:25Z", "ms": -1802545294619.1838 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 20:00 on Sun 17 Nov to 22:24 on Mon 18 Nov.", "fact": "1912-11-17T12:00:00Z → 1912-11-18T14:24:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:10–12:58 on the 17th, 12:10–12:58 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī 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 25307 s" }, { "step": "ruling", "text": "Durgā Navamī, Qingyang, 1912: Monday 18 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": "1912-11-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-18", "confidence": "determinate" } ], "quote": "In Qingyang, Durgā Navamī 1912 falls on Monday 18 November. Navamī runs from 20:00 on Sun 17 Nov to 22:24 on Mon 18 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/durga-navami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-11-20", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20691, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-11-20T00:23:13+08:00", "utc": "1912-11-19T16:23:13Z", "ms": -1802417807414.0603 }, "end": { "local": "1912-11-21T01:46:07+08:00", "utc": "1912-11-20T17:46:07Z", "ms": -1802326433013.763 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-20T00:23:13+08:00", "utc": "1912-11-19T16:23:13Z", "ms": -1802417807414.0603 }, "end": { "local": "1912-11-21T01:46:07+08:00", "utc": "1912-11-20T17:46:07Z", "ms": -1802326433013.763 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-11-20", "window": { "start": { "local": "1912-11-20T07:29:59+08:00", "utc": "1912-11-19T23:29:59Z", "ms": -1802392201229.2705 }, "end": { "local": "1912-11-20T07:29:59+08:00", "utc": "1912-11-19T23:29:59Z", "ms": -1802392201229.2705 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-11-21", "window": { "start": { "local": "1912-11-21T07:30:58+08:00", "utc": "1912-11-20T23:30:58Z", "ms": -1802305741717.8823 }, "end": { "local": "1912-11-21T07:30:58+08:00", "utc": "1912-11-20T23:30:58Z", "ms": -1802305741717.8823 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:23 on Wed 20 Nov to 01:46 on Thu 21 Nov.", "fact": "1912-11-19T16:23:13Z → 1912-11-20T17:46:07Z" }, { "step": "kaala", "text": "Sunrise is at 07:30 on the 20th and 07:31 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 20th and is not on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20691 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Qingyang, 1912: Wednesday 20 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": "1912-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-20", "confidence": "determinate" } ], "quote": "In Qingyang, Prabodhinī Ekādaśī 1912 falls on Wednesday 20 November. Ekādaśī runs from 00:23 on Wed 20 Nov to 01:46 on Thu 21 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-11-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-11-22", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24721, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-11-22T02:26:20+08:00", "utc": "1912-11-21T18:26:20Z", "ms": -1802237619983.283 }, "end": { "local": "1912-11-23T02:22:01+08:00", "utc": "1912-11-22T18:22:01Z", "ms": -1802151478725.8618 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-22T02:26:20+08:00", "utc": "1912-11-21T18:26:20Z", "ms": -1802237619983.283 }, "end": { "local": "1912-11-23T02:22:01+08:00", "utc": "1912-11-22T18:22:01Z", "ms": -1802151478725.8618 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-11-21", "window": { "start": { "local": "1912-11-21T17:39:16+08:00", "utc": "1912-11-21T09:39:16Z", "ms": -1802269244398.0198 }, "end": { "local": "1912-11-21T19:30:17+08:00", "utc": "1912-11-21T11:30:17Z", "ms": -1802262582805.2898 } }, "covered_min": 0, "window_min": 111, "qualifies": false }, { "local_date": "1912-11-22", "window": { "start": { "local": "1912-11-22T17:38:47+08:00", "utc": "1912-11-22T09:38:47Z", "ms": -1802182872743.6675 }, "end": { "local": "1912-11-22T19:30:00+08:00", "utc": "1912-11-22T11:30:00Z", "ms": -1802176199507.099 } }, "covered_min": 111, "window_min": 111, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:26 on Fri 22 Nov to 02:22 on Sat 23 Nov.", "fact": "1912-11-21T18:26:20Z → 1912-11-22T18:22:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:30 on the 21st, 17:39–19:30 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 111 minutes on the 21st and 111 of 111 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24721 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Friday 22 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": "1912-11-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-22", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Friday 22 November. Trayodaśī runs from 02:26 on Fri 22 Nov to 02:22 on Sat 23 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-11-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38190, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-11-24T01:35:26+08:00", "utc": "1912-11-23T17:35:26Z", "ms": -1802067873818.7168 }, "end": { "local": "1912-11-25T00:11:55+08:00", "utc": "1912-11-24T16:11:55Z", "ms": -1801986485344.5576 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-24T01:35:26+08:00", "utc": "1912-11-23T17:35:26Z", "ms": -1802067873818.7168 }, "end": { "local": "1912-11-25T00:11:55+08:00", "utc": "1912-11-24T16:11:55Z", "ms": -1801986485344.5576 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-11-24", "window": { "start": { "local": "1912-11-24T12:11:56+08:00", "utc": "1912-11-24T04:11:56Z", "ms": -1802029684313.7683 }, "end": { "local": "1912-11-24T12:59:56+08:00", "utc": "1912-11-24T04:59:56Z", "ms": -1802026804313.7683 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-11-25", "window": { "start": { "local": "1912-11-25T12:12:13+08:00", "utc": "1912-11-25T04:12:13Z", "ms": -1801943266505.5945 }, "end": { "local": "1912-11-25T13:00:13+08:00", "utc": "1912-11-25T05:00:13Z", "ms": -1801940386505.5945 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:35 on Sun 24 Nov to 00:12 on Mon 25 Nov.", "fact": "1912-11-23T17:35:26Z → 1912-11-24T16:11:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:12–13:00 on the 24th, 12:12–13:00 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38190 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Qingyang, 1912: Sunday 24 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": "1912-11-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-24", "confidence": "determinate" } ], "quote": "In Qingyang, Kārtikī Pūrṇimā 1912 falls on Sunday 24 November. Pūrṇimā runs from 01:35 on Sun 24 Nov to 00:12 on Mon 25 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/kartiki-purnima", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-24", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 30, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-11-24T01:35:26+08:00", "utc": "1912-11-23T17:35:26Z", "ms": -1802067873818.7168 }, "end": { "local": "1912-11-25T00:11:55+08:00", "utc": "1912-11-24T16:11:55Z", "ms": -1801986485344.5576 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1912-11-24T01:35:26+08:00", "utc": "1912-11-23T17:35:26Z", "ms": -1802067873818.7168 }, "end": { "local": "1912-11-25T00:11:55+08:00", "utc": "1912-11-24T16:11:55Z", "ms": -1801986485344.5576 } }, "kaala": "nishita", "days": [ { "local_date": "1912-11-23", "window": { "start": { "local": "1912-11-24T00:12:08+08:00", "utc": "1912-11-23T16:12:08Z", "ms": -1802072872015.0771 }, "end": { "local": "1912-11-24T01:00:08+08:00", "utc": "1912-11-23T17:00:08Z", "ms": -1802069992015.0771 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-11-24", "window": { "start": { "local": "1912-11-25T00:12:25+08:00", "utc": "1912-11-24T16:12:25Z", "ms": -1801986455158.982 }, "end": { "local": "1912-11-25T01:00:25+08:00", "utc": "1912-11-24T17:00:25Z", "ms": -1801983575158.982 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 01:35 on Sun 24 Nov to 00:12 on Mon 25 Nov.", "fact": "1912-11-23T17:35:26Z → 1912-11-24T16:11:55Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:12–01:00 on the 23rd, 00:12–01:00 on the 24th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 0 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither night qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 30 s < 300 s" }, { "step": "ruling", "text": "Rāsayātrā, Qingyang, 1912: Sunday 24 November.", "fact": "confidence: boundary (margin)" } ], "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": "1912-11-24", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-24", "confidence": "boundary" } ], "quote": "In Qingyang, Rāsayātrā 1912 falls on Sunday 24 November. Pūrṇimā runs from 01:35 on Sun 24 Nov to 00:12 on Mon 25 Nov, and reaches niśītha on neither day. It is 0 min 30 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/rasayatra", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-11-27", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8187, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-11-27T17:36:58+08:00", "utc": "1912-11-27T09:36:58Z", "ms": -1801750982126.3142 }, "end": { "local": "1912-11-28T15:04:52+08:00", "utc": "1912-11-28T07:04:52Z", "ms": -1801673708094.1152 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-11-27T17:36:58+08:00", "utc": "1912-11-27T09:36:58Z", "ms": -1801750982126.3142 }, "end": { "local": "1912-11-28T15:04:52+08:00", "utc": "1912-11-28T07:04:52Z", "ms": -1801673708094.1152 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-11-27", "window": { "start": { "local": "1912-11-27T19:53:25+08:00", "utc": "1912-11-27T11:53:25Z", "ms": -1801742794816.585 }, "end": { "local": "1912-11-27T19:53:25+08:00", "utc": "1912-11-27T11:53:25Z", "ms": -1801742794816.585 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-11-28", "window": { "start": { "local": "1912-11-28T21:05:29+08:00", "utc": "1912-11-28T13:05:29Z", "ms": -1801652070900.8389 }, "end": { "local": "1912-11-28T21:05:29+08:00", "utc": "1912-11-28T13:05:29Z", "ms": -1801652070900.8389 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:37 on Wed 27 Nov to 15:05 on Thu 28 Nov.", "fact": "1912-11-27T09:36:58Z → 1912-11-28T07:04:52Z" }, { "step": "kaala", "text": "Moonrise is at 19:53 on the 27th and 21:05 on the 28th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 27th and is not on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8187 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Wednesday 27 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": "1912-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-11-27", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Wednesday 27 November. Caturthī runs from 17:37 on Wed 27 Nov to 15:05 on Thu 28 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-11-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-12-04", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16365, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-12-04T03:10:31+08:00", "utc": "1912-12-03T19:10:31Z", "ms": -1801198169161.2107 }, "end": { "local": "1912-12-05T02:06:42+08:00", "utc": "1912-12-04T18:06:42Z", "ms": -1801115597660.2683 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-04T03:10:31+08:00", "utc": "1912-12-03T19:10:31Z", "ms": -1801198169161.2107 }, "end": { "local": "1912-12-05T02:06:42+08:00", "utc": "1912-12-04T18:06:42Z", "ms": -1801115597660.2683 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-12-04", "window": { "start": { "local": "1912-12-04T07:43:16+08:00", "utc": "1912-12-03T23:43:16Z", "ms": -1801181804354.4802 }, "end": { "local": "1912-12-04T07:43:16+08:00", "utc": "1912-12-03T23:43:16Z", "ms": -1801181804354.4802 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1912-12-05", "window": { "start": { "local": "1912-12-05T07:44:08+08:00", "utc": "1912-12-04T23:44:08Z", "ms": -1801095351913.3875 }, "end": { "local": "1912-12-05T07:44:08+08:00", "utc": "1912-12-04T23:44:08Z", "ms": -1801095351913.3875 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:11 on Wed 4 Dec to 02:07 on Thu 5 Dec.", "fact": "1912-12-03T19:10:31Z → 1912-12-04T18:06:42Z" }, { "step": "kaala", "text": "Sunrise is at 07:43 on the 4th and 07:44 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16365 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Qingyang, 1912: Wednesday 4 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": "1912-12-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-04", "confidence": "determinate" } ], "quote": "In Qingyang, Utpannā Ekādaśī 1912 falls on Wednesday 4 December. Ekādaśī runs from 03:11 on Wed 4 Dec to 02:07 on Thu 5 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-12-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-12-06", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19486, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-12-06T01:20:40+08:00", "utc": "1912-12-05T17:20:40Z", "ms": -1801031959873.58 }, "end": { "local": "1912-12-07T00:53:42+08:00", "utc": "1912-12-06T16:53:42Z", "ms": -1800947177840.4138 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-06T01:20:40+08:00", "utc": "1912-12-05T17:20:40Z", "ms": -1801031959873.58 }, "end": { "local": "1912-12-07T00:53:42+08:00", "utc": "1912-12-06T16:53:42Z", "ms": -1800947177840.4138 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-12-05", "window": { "start": { "local": "1912-12-05T17:35:35+08:00", "utc": "1912-12-05T09:35:35Z", "ms": -1801059865162.3357 }, "end": { "local": "1912-12-05T19:28:50+08:00", "utc": "1912-12-05T11:28:50Z", "ms": -1801053069851 } }, "covered_min": 0, "window_min": 113, "qualifies": false }, { "local_date": "1912-12-06", "window": { "start": { "local": "1912-12-06T17:35:34+08:00", "utc": "1912-12-06T09:35:34Z", "ms": -1800973465989.0178 }, "end": { "local": "1912-12-06T19:28:56+08:00", "utc": "1912-12-06T11:28:56Z", "ms": -1800966663810.4688 } }, "covered_min": 113, "window_min": 113, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:21 on Fri 6 Dec to 00:54 on Sat 7 Dec.", "fact": "1912-12-05T17:20:40Z → 1912-12-06T16:53:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:36–19:29 on the 5th, 17:36–19:29 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 113 minutes on the 5th and 113 of 113 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19486 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Qingyang, 1912: Friday 6 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": "1912-12-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-06", "confidence": "determinate" } ], "quote": "In Qingyang, Kṛṣṇa Pradoṣa Vrata 1912 falls on Friday 6 December. Trayodaśī runs from 01:21 on Fri 6 Dec to 00:54 on Sat 7 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-12-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/shivaratri?on=1912-12-07", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-07", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 660, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1912-12-07T00:53:42+08:00", "utc": "1912-12-06T16:53:42Z", "ms": -1800947177840.4138 }, "end": { "local": "1912-12-08T00:48:00+08:00", "utc": "1912-12-07T16:48:00Z", "ms": -1800861119901.227 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-07T00:53:42+08:00", "utc": "1912-12-06T16:53:42Z", "ms": -1800947177840.4138 }, "end": { "local": "1912-12-08T00:48:00+08:00", "utc": "1912-12-07T16:48:00Z", "ms": -1800861119901.227 } }, "kaala": "nishita", "days": [ { "local_date": "1912-12-06", "window": { "start": { "local": "1912-12-07T00:16:42+08:00", "utc": "1912-12-06T16:16:42Z", "ms": -1800949397819.4587 }, "end": { "local": "1912-12-07T01:04:42+08:00", "utc": "1912-12-06T17:04:42Z", "ms": -1800946517819.4587 } }, "covered_min": 11, "window_min": 48, "qualifies": true }, { "local_date": "1912-12-07", "window": { "start": { "local": "1912-12-08T00:17:08+08:00", "utc": "1912-12-07T16:17:08Z", "ms": -1800862972370.7693 }, "end": { "local": "1912-12-08T01:05:08+08:00", "utc": "1912-12-07T17:05:08Z", "ms": -1800860092370.7693 } }, "covered_min": 31, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 00:54 on Sat 7 Dec to 00:48 on Sun 8 Dec.", "fact": "1912-12-06T16:53:42Z → 1912-12-07T16:48:00Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:17–01:05 on the 6th, 00:17–01:05 on the 7th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 11 of 48 minutes on the 6th and 31 of 48 on the 7th.", "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 660 s" }, { "step": "ruling", "text": "Śivarātri, Qingyang, 1912: Saturday 7 December.", "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": "1912-12-07", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-07", "confidence": "boundary" } ], "quote": "In Qingyang, Śivarātri 1912 falls on Saturday 7 December. Caturdaśī runs from 00:54 on Sat 7 Dec to 00:48 on Sun 8 Dec and covers 31 of 48 minutes of niśītha that night. It also reaches the previous night for 11 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/shivaratri?on=1912-12-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-12-12", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18918, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-12-12T04:52:09+08:00", "utc": "1912-12-11T20:52:09Z", "ms": -1800500870763.0398 }, "end": { "local": "1912-12-13T07:04:10+08:00", "utc": "1912-12-12T23:04:10Z", "ms": -1800406550364.3962 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-12T04:52:09+08:00", "utc": "1912-12-11T20:52:09Z", "ms": -1800500870763.0398 }, "end": { "local": "1912-12-13T07:04:10+08:00", "utc": "1912-12-12T23:04:10Z", "ms": -1800406550364.3962 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-12-12", "window": { "start": { "local": "1912-12-12T12:19:00+08:00", "utc": "1912-12-12T04:19:00Z", "ms": -1800474060441.9214 }, "end": { "local": "1912-12-12T13:07:00+08:00", "utc": "1912-12-12T05:07:00Z", "ms": -1800471180441.9214 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-12-13", "window": { "start": { "local": "1912-12-13T12:19:28+08:00", "utc": "1912-12-13T04:19:28Z", "ms": -1800387631890.5444 }, "end": { "local": "1912-12-13T13:07:28+08:00", "utc": "1912-12-13T05:07:28Z", "ms": -1800384751890.5444 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:52 on Thu 12 Dec to 07:04 on Fri 13 Dec.", "fact": "1912-12-11T20:52:09Z → 1912-12-12T23:04:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:19–13:07 on the 12th, 12:19–13:07 on the 13th.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18918 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Qingyang, 1912: Thursday 12 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": "1912-12-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-12", "confidence": "determinate" } ], "quote": "In Qingyang, Vināyaka Caturthī 1912 falls on Thursday 12 December. Caturthī runs from 04:52 on Thu 12 Dec to 07:04 on Fri 13 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/vinayaka-chaturthi?on=1912-12-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9809, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1912-12-13T07:04:10+08:00", "utc": "1912-12-12T23:04:10Z", "ms": -1800406550364.3962 }, "end": { "local": "1912-12-14T09:36:28+08:00", "utc": "1912-12-14T01:36:28Z", "ms": -1800311012229.9734 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-13T07:04:10+08:00", "utc": "1912-12-12T23:04:10Z", "ms": -1800406550364.3962 }, "end": { "local": "1912-12-14T09:36:28+08:00", "utc": "1912-12-14T01:36:28Z", "ms": -1800311012229.9734 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-12-13", "window": { "start": { "local": "1912-12-13T12:19:28+08:00", "utc": "1912-12-13T04:19:28Z", "ms": -1800387631890.5444 }, "end": { "local": "1912-12-13T13:07:28+08:00", "utc": "1912-12-13T05:07:28Z", "ms": -1800384751890.5444 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-12-14", "window": { "start": { "local": "1912-12-14T12:19:57+08:00", "utc": "1912-12-14T04:19:57Z", "ms": -1800301203020.2314 }, "end": { "local": "1912-12-14T13:07:57+08:00", "utc": "1912-12-14T05:07:57Z", "ms": -1800298323020.2314 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 07:04 on Fri 13 Dec to 09:36 on Sat 14 Dec.", "fact": "1912-12-12T23:04:10Z → 1912-12-14T01:36:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:19–13:07 on the 13th, 12:20–13:08 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 9809 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Qingyang, 1912: Friday 13 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": "1912-12-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-13", "confidence": "determinate" } ], "quote": "In Qingyang, Nāga Pañcamī (Mārgaśīrṣa) 1912 falls on Friday 13 December. Pañcamī runs from 07:04 on Fri 13 Dec to 09:36 on Sat 14 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/naga-panchami-margashirsha", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-14", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 143, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1912-12-14T09:36:28+08:00", "utc": "1912-12-14T01:36:28Z", "ms": -1800311012229.9734 }, "end": { "local": "1912-12-15T12:18:03+08:00", "utc": "1912-12-15T04:18:03Z", "ms": -1800214916516.4268 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-14T09:36:28+08:00", "utc": "1912-12-14T01:36:28Z", "ms": -1800311012229.9734 }, "end": { "local": "1912-12-15T12:18:03+08:00", "utc": "1912-12-15T04:18:03Z", "ms": -1800214916516.4268 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-12-14", "window": { "start": { "local": "1912-12-14T12:19:57+08:00", "utc": "1912-12-14T04:19:57Z", "ms": -1800301203020.2314 }, "end": { "local": "1912-12-14T13:07:57+08:00", "utc": "1912-12-14T05:07:57Z", "ms": -1800298323020.2314 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-12-15", "window": { "start": { "local": "1912-12-15T12:20:26+08:00", "utc": "1912-12-15T04:20:26Z", "ms": -1800214773865.1157 }, "end": { "local": "1912-12-15T13:08:26+08:00", "utc": "1912-12-15T05:08:26Z", "ms": -1800211893865.1157 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:36 on Sat 14 Dec to 12:18 on Sun 15 Dec.", "fact": "1912-12-14T01:36:28Z → 1912-12-15T04:18:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 14th, 12:20–13:08 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 143 s < 300 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Qingyang, 1912: Saturday 14 December.", "fact": "confidence: boundary (margin)" } ], "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": "1912-12-14", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-15", "confidence": "determinate" } ], "quote": "In Qingyang, Campā Ṣaṣṭhī 1912 falls on Saturday 14 December. Ṣaṣṭhī runs from 09:36 on Sat 14 Dec to 12:18 on Sun 15 Dec and covers all of madhyāhna that midday. It is 2 min 23 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/champa-shashthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-14", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 143, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1912-12-14T09:36:28+08:00", "utc": "1912-12-14T01:36:28Z", "ms": -1800311012229.9734 }, "end": { "local": "1912-12-15T12:18:03+08:00", "utc": "1912-12-15T04:18:03Z", "ms": -1800214916516.4268 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-14T09:36:28+08:00", "utc": "1912-12-14T01:36:28Z", "ms": -1800311012229.9734 }, "end": { "local": "1912-12-15T12:18:03+08:00", "utc": "1912-12-15T04:18:03Z", "ms": -1800214916516.4268 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-12-14", "window": { "start": { "local": "1912-12-14T12:19:57+08:00", "utc": "1912-12-14T04:19:57Z", "ms": -1800301203020.2314 }, "end": { "local": "1912-12-14T13:07:57+08:00", "utc": "1912-12-14T05:07:57Z", "ms": -1800298323020.2314 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-12-15", "window": { "start": { "local": "1912-12-15T12:20:26+08:00", "utc": "1912-12-15T04:20:26Z", "ms": -1800214773865.1157 }, "end": { "local": "1912-12-15T13:08:26+08:00", "utc": "1912-12-15T05:08:26Z", "ms": -1800211893865.1157 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 09:36 on Sat 14 Dec to 12:18 on Sun 15 Dec.", "fact": "1912-12-14T01:36:28Z → 1912-12-15T04:18:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 14th, 12:20–13:08 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 143 s < 300 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Qingyang, 1912: Saturday 14 December.", "fact": "confidence: boundary (margin)" } ], "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": "1912-12-14", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-14", "confidence": "determinate" } ], "quote": "In Qingyang, Skanda Ṣaṣṭhī 1912 falls on Saturday 14 December. Ṣaṣṭhī runs from 09:36 on Sat 14 Dec to 12:18 on Sun 15 Dec and covers all of madhyāhna that midday. It is 2 min 23 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/skanda-shashthi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-15", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 143, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1912-12-15T12:18:03+08:00", "utc": "1912-12-15T04:18:03Z", "ms": -1800214916516.4268 }, "end": { "local": "1912-12-16T14:54:38+08:00", "utc": "1912-12-16T06:54:38Z", "ms": -1800119122432.599 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-15T12:18:03+08:00", "utc": "1912-12-15T04:18:03Z", "ms": -1800214916516.4268 }, "end": { "local": "1912-12-16T14:54:38+08:00", "utc": "1912-12-16T06:54:38Z", "ms": -1800119122432.599 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-12-15", "window": { "start": { "local": "1912-12-15T12:20:26+08:00", "utc": "1912-12-15T04:20:26Z", "ms": -1800214773865.1157 }, "end": { "local": "1912-12-15T13:08:26+08:00", "utc": "1912-12-15T05:08:26Z", "ms": -1800211893865.1157 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1912-12-16", "window": { "start": { "local": "1912-12-16T12:20:56+08:00", "utc": "1912-12-16T04:20:56Z", "ms": -1800128344459.332 }, "end": { "local": "1912-12-16T13:08:56+08:00", "utc": "1912-12-16T05:08:56Z", "ms": -1800125464459.332 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Saptamī runs from 12:18 on Sun 15 Dec to 14:55 on Mon 16 Dec.", "fact": "1912-12-15T04:18:03Z → 1912-12-16T06:54:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:20–13:08 on the 15th, 12:21–13:09 on the 16th.", "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 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 143 s < 300 s" }, { "step": "ruling", "text": "Mitra Saptamī, Qingyang, 1912: Sunday 15 December.", "fact": "confidence: boundary (margin)" } ], "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": "1912-12-15", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-15", "confidence": "determinate" } ], "quote": "In Qingyang, Mitra Saptamī 1912 falls on Sunday 15 December. Saptamī runs from 12:18 on Sun 15 Dec to 14:55 on Mon 16 Dec and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken. It is 2 min 23 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/qingyang/festivals/1912/mitra-saptami", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/ekadashi?on=1912-12-20", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 42752, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1912-12-19T19:47:00+08:00", "utc": "1912-12-19T11:47:00Z", "ms": -1799842379616.6572 }, "end": { "local": "1912-12-20T19:51:21+08:00", "utc": "1912-12-20T11:51:21Z", "ms": -1799755719149.336 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-19T19:47:00+08:00", "utc": "1912-12-19T11:47:00Z", "ms": -1799842379616.6572 }, "end": { "local": "1912-12-20T19:51:21+08:00", "utc": "1912-12-20T11:51:21Z", "ms": -1799755719149.336 } }, "kaala": "sunrise", "days": [ { "local_date": "1912-12-19", "window": { "start": { "local": "1912-12-19T07:54:28+08:00", "utc": "1912-12-18T23:54:28Z", "ms": -1799885131540.6309 }, "end": { "local": "1912-12-19T07:54:28+08:00", "utc": "1912-12-18T23:54:28Z", "ms": -1799885131540.6309 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-12-20", "window": { "start": { "local": "1912-12-20T07:55:03+08:00", "utc": "1912-12-19T23:55:03Z", "ms": -1799798697334.1936 }, "end": { "local": "1912-12-20T07:55:03+08:00", "utc": "1912-12-19T23:55:03Z", "ms": -1799798697334.1936 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:47 on Thu 19 Dec to 19:51 on Fri 20 Dec.", "fact": "1912-12-19T11:47:00Z → 1912-12-20T11:51:21Z" }, { "step": "kaala", "text": "Sunrise is at 07:54 on the 19th and 07:55 on the 20th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 19th and is on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 42752 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Qingyang, 1912: Friday 20 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": "1912-12-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-20", "confidence": "determinate" } ], "quote": "In Qingyang, Mokṣadā Ekādaśī 1912 falls on Friday 20 December. Ekādaśī runs from 19:47 on Thu 19 Dec to 19:51 on Fri 20 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/ekadashi?on=1912-12-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21167, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1912-12-20T19:51:21+08:00", "utc": "1912-12-20T11:51:21Z", "ms": -1799755719149.336 }, "end": { "local": "1912-12-21T19:04:12+08:00", "utc": "1912-12-21T11:04:12Z", "ms": -1799672147833.386 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-20T19:51:21+08:00", "utc": "1912-12-20T11:51:21Z", "ms": -1799755719149.336 }, "end": { "local": "1912-12-21T19:04:12+08:00", "utc": "1912-12-21T11:04:12Z", "ms": -1799672147833.386 } }, "kaala": "madhyahna", "days": [ { "local_date": "1912-12-20", "window": { "start": { "local": "1912-12-20T12:22:55+08:00", "utc": "1912-12-20T04:22:55Z", "ms": -1799782625007.6501 }, "end": { "local": "1912-12-20T13:10:55+08:00", "utc": "1912-12-20T05:10:55Z", "ms": -1799779745007.6501 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1912-12-21", "window": { "start": { "local": "1912-12-21T12:23:25+08:00", "utc": "1912-12-21T04:23:25Z", "ms": -1799696194854.1584 }, "end": { "local": "1912-12-21T13:11:25+08:00", "utc": "1912-12-21T05:11:25Z", "ms": -1799693314854.1584 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 19:51 on Fri 20 Dec to 19:04 on Sat 21 Dec.", "fact": "1912-12-20T11:51:21Z → 1912-12-21T11:04:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:23–13:11 on the 20th, 12:23–13:11 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 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 21167 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Qingyang, 1912: Saturday 21 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": "1912-12-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-21", "confidence": "determinate" } ], "quote": "In Qingyang, Akhaṇḍa Dvādaśī 1912 falls on Saturday 21 December. Dvādaśī runs from 19:51 on Fri 20 Dec to 19:04 on Sat 21 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/qingyang/festivals/1912/akhanda-dvadashi", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/pradosha-vrata?on=1912-12-21", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 605, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1912-12-21T19:04:12+08:00", "utc": "1912-12-21T11:04:12Z", "ms": -1799672147833.386 }, "end": { "local": "1912-12-22T17:29:40+08:00", "utc": "1912-12-22T09:29:40Z", "ms": -1799591420323.1272 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-21T19:04:12+08:00", "utc": "1912-12-21T11:04:12Z", "ms": -1799672147833.386 }, "end": { "local": "1912-12-22T17:29:40+08:00", "utc": "1912-12-22T09:29:40Z", "ms": -1799591420323.1272 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-12-21", "window": { "start": { "local": "1912-12-21T17:39:15+08:00", "utc": "1912-12-21T09:39:15Z", "ms": -1799677245004.6963 }, "end": { "local": "1912-12-21T19:33:30+08:00", "utc": "1912-12-21T11:33:30Z", "ms": -1799670390161.7473 } }, "covered_min": 29, "window_min": 114, "qualifies": true }, { "local_date": "1912-12-22", "window": { "start": { "local": "1912-12-22T17:39:44+08:00", "utc": "1912-12-22T09:39:44Z", "ms": -1799590815615.3564 }, "end": { "local": "1912-12-22T19:33:59+08:00", "utc": "1912-12-22T11:33:59Z", "ms": -1799583960773.6 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:04 on Sat 21 Dec to 17:30 on Sun 22 Dec.", "fact": "1912-12-21T11:04:12Z → 1912-12-22T09:29:40Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:33 on the 21st, 17:40–19:34 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 29 of 114 minutes on the 21st and 0 of 114 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 605 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Qingyang, 1912: Saturday 21 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": "1912-12-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-21", "confidence": "determinate" } ], "quote": "In Qingyang, Śukla Pradoṣa Vrata 1912 falls on Saturday 21 December. Trayodaśī runs from 19:04 on Sat 21 Dec to 17:30 on Sun 22 Dec and covers 29 of 114 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/pradosha-vrata?on=1912-12-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8709, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1912-12-23T15:15:06+08:00", "utc": "1912-12-23T07:15:06Z", "ms": -1799513093987.6133 }, "end": { "local": "1912-12-24T12:29:59+08:00", "utc": "1912-12-24T04:29:59Z", "ms": -1799436601240.5898 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-23T15:15:06+08:00", "utc": "1912-12-23T07:15:06Z", "ms": -1799513093987.6133 }, "end": { "local": "1912-12-24T12:29:59+08:00", "utc": "1912-12-24T04:29:59Z", "ms": -1799436601240.5898 } }, "kaala": "pradosha", "days": [ { "local_date": "1912-12-23", "window": { "start": { "local": "1912-12-23T17:40:15+08:00", "utc": "1912-12-23T09:40:15Z", "ms": -1799504384543.6333 }, "end": { "local": "1912-12-23T19:34:30+08:00", "utc": "1912-12-23T11:34:30Z", "ms": -1799497530149.9846 } }, "covered_min": 114, "window_min": 114, "qualifies": true }, { "local_date": "1912-12-24", "window": { "start": { "local": "1912-12-24T17:40:48+08:00", "utc": "1912-12-24T09:40:48Z", "ms": -1799417951820.639 }, "end": { "local": "1912-12-24T19:35:02+08:00", "utc": "1912-12-24T11:35:02Z", "ms": -1799411098321.4634 } }, "covered_min": 0, "window_min": 114, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:15 on Mon 23 Dec to 12:30 on Tue 24 Dec.", "fact": "1912-12-23T07:15:06Z → 1912-12-24T04:29:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:40–19:34 on the 23rd, 17:41–19:35 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 114 of 114 minutes on the 23rd and 0 of 114 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8709 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Qingyang, 1912: Monday 23 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": "1912-12-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-23", "confidence": "determinate" } ], "quote": "In Qingyang, Dattātreyotpatti (Datta Jayanti) 1912 falls on Monday 23 December. Pūrṇimā runs from 15:15 on Mon 23 Dec to 12:30 on Tue 24 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/qingyang/festivals/1912/dattatreyotpatti", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/qingyang/festivals/1912/sankashta-chaturthi?on=1912-12-27", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "12359313", "year": 1912, "local_date": "1912-12-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9285, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1912-12-27T02:56:51+08:00", "utc": "1912-12-26T18:56:51Z", "ms": -1799211789456.862 }, "end": { "local": "1912-12-27T23:53:44+08:00", "utc": "1912-12-27T15:53:44Z", "ms": -1799136375888.0105 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1912-12-27T02:56:51+08:00", "utc": "1912-12-26T18:56:51Z", "ms": -1799211789456.862 }, "end": { "local": "1912-12-27T23:53:44+08:00", "utc": "1912-12-27T15:53:44Z", "ms": -1799136375888.0105 } }, "kaala": "moonrise", "days": [ { "local_date": "1912-12-26", "window": { "start": { "local": "1912-12-26T20:02:46+08:00", "utc": "1912-12-26T12:02:46Z", "ms": -1799236633795.5527 }, "end": { "local": "1912-12-26T20:02:46+08:00", "utc": "1912-12-26T12:02:46Z", "ms": -1799236633795.5527 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1912-12-27", "window": { "start": { "local": "1912-12-27T21:19:00+08:00", "utc": "1912-12-27T13:19:00Z", "ms": -1799145660445.072 }, "end": { "local": "1912-12-27T21:19:00+08:00", "utc": "1912-12-27T13:19:00Z", "ms": -1799145660445.072 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:57 on Fri 27 Dec to 23:54 on Fri 27 Dec.", "fact": "1912-12-26T18:56:51Z → 1912-12-27T15:53:44Z" }, { "step": "kaala", "text": "Moonrise is at 20:03 on the 26th and 21:19 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 26th and is on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9285 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Qingyang, 1912: Friday 27 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": "1912-12-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1912-12-27", "confidence": "determinate" } ], "quote": "In Qingyang, Saṅkaṣṭa Caturthī 1912 falls on Friday 27 December. Caturthī runs from 02:57 on Fri 27 Dec to 23:54 on Fri 27 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/qingyang/festivals/1912/sankashta-chaturthi?on=1912-12-27", "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" } }