{ "id": "/fuzhou/festivals/1921", "place": { "id": "1810821", "slug": "fuzhou", "name": "Fuzhou", "region": "Fujian, China", "country": "CN", "lat": 26.06139, "lon": 119.30611, "elevation_m": 14, "tz": "Asia/Shanghai" }, "year": 1921, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/fuzhou/festivals/1921/ekadashi?on=1921-01-04", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10511, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-01-04T02:13:39+08:00", "utc": "1921-01-03T18:13:39Z", "ms": -1546062381407.8315 }, "end": { "local": "1921-01-05T03:56:09+08:00", "utc": "1921-01-04T19:56:09Z", "ms": -1545969831373.5168 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-01-04T02:13:39+08:00", "utc": "1921-01-03T18:13:39Z", "ms": -1546062381407.8315 }, "end": { "local": "1921-01-05T03:56:09+08:00", "utc": "1921-01-04T19:56:09Z", "ms": -1545969831373.5168 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-01-04", "window": { "start": { "local": "1921-01-04T06:51:06+08:00", "utc": "1921-01-03T22:51:06Z", "ms": -1546045733818.0508 }, "end": { "local": "1921-01-04T06:51:06+08:00", "utc": "1921-01-03T22:51:06Z", "ms": -1546045733818.0508 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-01-05", "window": { "start": { "local": "1921-01-05T06:51:19+08:00", "utc": "1921-01-04T22:51:19Z", "ms": -1545959320728.2676 }, "end": { "local": "1921-01-05T06:51:19+08:00", "utc": "1921-01-04T22:51:19Z", "ms": -1545959320728.2676 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:14 on Tue 4 Jan to 03:56 on Wed 5 Jan.", "fact": "1921-01-03T18:13:39Z → 1921-01-04T19:56:09Z" }, { "step": "kaala", "text": "Sunrise is at 06:51 on the 4th and 06:51 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 10511 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Fuzhou, 1921: Tuesday 4 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": "1921-01-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Saphalā Ekādaśī 1921 falls on Tuesday 4 January. Ekādaśī runs from 02:14 on Tue 4 Jan to 03:56 on Wed 5 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-01-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-01-06", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32581, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-01-06T06:02:03+08:00", "utc": "1921-01-05T22:02:03Z", "ms": -1545875876694.8286 }, "end": { "local": "1921-01-07T08:23:17+08:00", "utc": "1921-01-07T00:23:17Z", "ms": -1545781003411.2637 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-01-06T06:02:03+08:00", "utc": "1921-01-05T22:02:03Z", "ms": -1545875876694.8286 }, "end": { "local": "1921-01-07T08:23:17+08:00", "utc": "1921-01-07T00:23:17Z", "ms": -1545781003411.2637 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-01-06", "window": { "start": { "local": "1921-01-06T17:25:35+08:00", "utc": "1921-01-06T09:25:35Z", "ms": -1545834865399.935 }, "end": { "local": "1921-01-06T19:13:03+08:00", "utc": "1921-01-06T11:13:03Z", "ms": -1545828416523.813 } }, "covered_min": 107, "window_min": 107, "qualifies": true }, { "local_date": "1921-01-07", "window": { "start": { "local": "1921-01-07T17:26:18+08:00", "utc": "1921-01-07T09:26:18Z", "ms": -1545748422203.1404 }, "end": { "local": "1921-01-07T19:13:42+08:00", "utc": "1921-01-07T11:13:42Z", "ms": -1545741977916.6824 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:02 on Thu 6 Jan to 08:23 on Fri 7 Jan.", "fact": "1921-01-05T22:02:03Z → 1921-01-07T00:23:17Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:26–19:13 on the 6th, 17:26–19:14 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 107 of 107 minutes on the 6th and 0 of 107 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 32581 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Thursday 6 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": "1921-01-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Thursday 6 January. Trayodaśī runs from 06:02 on Thu 6 Jan to 08:23 on Fri 7 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-01-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-01-07", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28239, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-01-07T08:23:17+08:00", "utc": "1921-01-07T00:23:17Z", "ms": -1545781003411.2637 }, "end": { "local": "1921-01-08T10:53:06+08:00", "utc": "1921-01-08T02:53:06Z", "ms": -1545685613608.3115 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-01-07T08:23:17+08:00", "utc": "1921-01-07T00:23:17Z", "ms": -1545781003411.2637 }, "end": { "local": "1921-01-08T10:53:06+08:00", "utc": "1921-01-08T02:53:06Z", "ms": -1545685613608.3115 } }, "kaala": "nishita", "days": [ { "local_date": "1921-01-06", "window": { "start": { "local": "1921-01-06T23:44:38+08:00", "utc": "1921-01-06T15:44:38Z", "ms": -1545812122114.477 }, "end": { "local": "1921-01-07T00:32:38+08:00", "utc": "1921-01-06T16:32:38Z", "ms": -1545809242114.477 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-01-07", "window": { "start": { "local": "1921-01-07T23:45:04+08:00", "utc": "1921-01-07T15:45:04Z", "ms": -1545725696128.9229 }, "end": { "local": "1921-01-08T00:33:04+08:00", "utc": "1921-01-07T16:33:04Z", "ms": -1545722816128.9229 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:23 on Fri 7 Jan to 10:53 on Sat 8 Jan.", "fact": "1921-01-07T00:23:17Z → 1921-01-08T02:53:06Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:45–00:33 on the 6th, 23:45–00:33 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 28239 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Friday 7 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": "1921-01-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Friday 7 January. Caturdaśī runs from 08:23 on Fri 7 Jan to 10:53 on Sat 8 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-01-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6037, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 }, "end": { "local": "1921-02-12T08:10:52+08:00", "utc": "1921-02-12T00:10:52Z", "ms": -1542671347970.8271 } }, "span": { "of": "transit", "start": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 }, "end": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 } }, "kaala": "sunset-day", "days": [ { "local_date": "1921-01-13", "window": { "start": { "local": "1921-01-12T17:30:00+08:00", "utc": "1921-01-12T09:30:00Z", "ms": -1545316199563.1384 }, "end": { "local": "1921-01-13T17:30:46+08:00", "utc": "1921-01-13T09:30:46Z", "ms": -1545229754010.2974 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1921-01-14", "window": { "start": { "local": "1921-01-13T17:30:46+08:00", "utc": "1921-01-13T09:30:46Z", "ms": -1545229754010.2974 }, "end": { "local": "1921-01-14T17:31:32+08:00", "utc": "1921-01-14T09:31:32Z", "ms": -1545143308214.6404 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1921-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 19:11 on Thu 13 Jan.", "fact": "1921-01-13T11:11:23Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:31, and the day of the 14th ends at 17:32.", "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 6037 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Friday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Fuzhou, 1921: Thursday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "bhogi", "follows": { "festival": "pongal", "days": -1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1921-01-12", "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": "1921-01-12", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Fuzhou, Bhogi 1921 falls on Thursday 13 January. It is kept the day before Pongal, which falls on Friday 14 January. The Sun enters Makara at 19:11 on Thu 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from midnight, or counted from sunrise, as in Orissa, it is 12 January.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17317, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 }, "end": { "local": "1921-02-12T08:10:52+08:00", "utc": "1921-02-12T00:10:52Z", "ms": -1542671347970.8271 } }, "span": { "of": "transit", "start": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 }, "end": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 } }, "kaala": "civil-day", "days": [ { "local_date": "1921-01-13", "window": { "start": { "local": "1921-01-13T00:00:00+08:00", "utc": "1921-01-12T16:00:00Z", "ms": -1545292800000 }, "end": { "local": "1921-01-14T00:00:00+08:00", "utc": "1921-01-13T16:00:00Z", "ms": -1545206400000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "1921-01-14", "window": { "start": { "local": "1921-01-14T00:00:00+08:00", "utc": "1921-01-13T16:00:00Z", "ms": -1545206400000 }, "end": { "local": "1921-01-15T00:00:00+08:00", "utc": "1921-01-14T16:00:00Z", "ms": -1545120000000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 19:11 on Thu 13 Jan.", "fact": "1921-01-13T11:11:23Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Fuzhou.", "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 13th, not the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 17317 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Fuzhou, 1921: Thursday 13 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": "1921-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1921-01-13", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1921-01-14", "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 Fuzhou, Makara Saṅkrānti 1921 falls on Thursday 13 January. The Sun enters Makara at 19:11 on Thu 13 Jan, and the rule counts the day from midnight. By the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 14 January.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-01-13", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29530, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-01-12T20:47:15+08:00", "utc": "1921-01-12T12:47:15Z", "ms": -1545304364930.1667 }, "end": { "local": "1921-01-13T22:52:33+08:00", "utc": "1921-01-13T14:52:33Z", "ms": -1545210446521.8506 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-01-12T20:47:15+08:00", "utc": "1921-01-12T12:47:15Z", "ms": -1545304364930.1667 }, "end": { "local": "1921-01-13T22:52:33+08:00", "utc": "1921-01-13T14:52:33Z", "ms": -1545210446521.8506 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-01-12", "window": { "start": { "local": "1921-01-12T11:47:05+08:00", "utc": "1921-01-12T03:47:05Z", "ms": -1545336774684.3628 }, "end": { "local": "1921-01-12T12:35:05+08:00", "utc": "1921-01-12T04:35:05Z", "ms": -1545333894684.3628 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-01-13", "window": { "start": { "local": "1921-01-13T11:47:29+08:00", "utc": "1921-01-13T03:47:29Z", "ms": -1545250351262.2683 }, "end": { "local": "1921-01-13T12:35:29+08:00", "utc": "1921-01-13T04:35:29Z", "ms": -1545247471262.2683 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:47 on Wed 12 Jan to 22:53 on Thu 13 Jan.", "fact": "1921-01-12T12:47:15Z → 1921-01-13T14:52:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 12th, 11:47–12:35 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 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29530 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 1921: Thursday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 1921 falls on Thursday 13 January. Caturthī runs from 20:47 on Wed 12 Jan to 22:53 on Thu 13 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-01-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6037, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 }, "end": { "local": "1921-02-12T08:10:52+08:00", "utc": "1921-02-12T00:10:52Z", "ms": -1542671347970.8271 } }, "span": { "of": "transit", "start": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 }, "end": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 } }, "kaala": "sunset-day", "days": [ { "local_date": "1921-01-13", "window": { "start": { "local": "1921-01-12T17:30:00+08:00", "utc": "1921-01-12T09:30:00Z", "ms": -1545316199563.1384 }, "end": { "local": "1921-01-13T17:30:46+08:00", "utc": "1921-01-13T09:30:46Z", "ms": -1545229754010.2974 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1921-01-14", "window": { "start": { "local": "1921-01-13T17:30:46+08:00", "utc": "1921-01-13T09:30:46Z", "ms": -1545229754010.2974 }, "end": { "local": "1921-01-14T17:31:32+08:00", "utc": "1921-01-14T09:31:32Z", "ms": -1545143308214.6404 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 19:11 on Thu 13 Jan.", "fact": "1921-01-13T11:11:23Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:31, and the day of the 14th ends at 17:32.", "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 6037 s" }, { "step": "ruling", "text": "Pongal, Fuzhou, 1921: Friday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "pongal", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.", "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1921-01-13", "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": "1921-01-13", "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 Fuzhou, Pongal 1921 falls on Friday 14 January. The Sun enters Makara at 19:11 on Thu 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from midnight, or counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6037, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 }, "end": { "local": "1921-02-12T08:10:52+08:00", "utc": "1921-02-12T00:10:52Z", "ms": -1542671347970.8271 } }, "span": { "of": "transit", "start": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 }, "end": { "local": "1921-01-13T19:11:23+08:00", "utc": "1921-01-13T11:11:23Z", "ms": -1545223717472.423 } }, "kaala": "sunset-day", "days": [ { "local_date": "1921-01-13", "window": { "start": { "local": "1921-01-12T17:30:00+08:00", "utc": "1921-01-12T09:30:00Z", "ms": -1545316199563.1384 }, "end": { "local": "1921-01-13T17:30:46+08:00", "utc": "1921-01-13T09:30:46Z", "ms": -1545229754010.2974 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1921-01-14", "window": { "start": { "local": "1921-01-13T17:30:46+08:00", "utc": "1921-01-13T09:30:46Z", "ms": -1545229754010.2974 }, "end": { "local": "1921-01-14T17:31:32+08:00", "utc": "1921-01-14T09:31:32Z", "ms": -1545143308214.6404 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1921-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 19:11 on Thu 13 Jan.", "fact": "1921-01-13T11:11:23Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:31, and the day of the 14th ends at 17:32.", "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 6037 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Friday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Fuzhou, 1921: Saturday 15 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "mattu-pongal", "follows": { "festival": "pongal", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1921-01-14", "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": "1921-01-14", "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 Fuzhou, Mattu Pongal 1921 falls on Saturday 15 January. It is kept the day after Pongal, which falls on Friday 14 January. The Sun enters Makara at 19:11 on Thu 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from midnight, or counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-01-20", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25422, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-01-19T23:47:56+08:00", "utc": "1921-01-19T15:47:56Z", "ms": -1544688724259.2905 }, "end": { "local": "1921-01-20T21:23:46+08:00", "utc": "1921-01-20T13:23:46Z", "ms": -1544610974214.9473 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-01-19T23:47:56+08:00", "utc": "1921-01-19T15:47:56Z", "ms": -1544688724259.2905 }, "end": { "local": "1921-01-20T21:23:46+08:00", "utc": "1921-01-20T13:23:46Z", "ms": -1544610974214.9473 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-01-20", "window": { "start": { "local": "1921-01-20T06:51:38+08:00", "utc": "1921-01-19T22:51:38Z", "ms": -1544663302392.792 }, "end": { "local": "1921-01-20T06:51:38+08:00", "utc": "1921-01-19T22:51:38Z", "ms": -1544663302392.792 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-01-21", "window": { "start": { "local": "1921-01-21T06:51:27+08:00", "utc": "1921-01-20T22:51:27Z", "ms": -1544576913360.4465 }, "end": { "local": "1921-01-21T06:51:27+08:00", "utc": "1921-01-20T22:51:27Z", "ms": -1544576913360.4465 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:48 on Wed 19 Jan to 21:24 on Thu 20 Jan.", "fact": "1921-01-19T15:47:56Z → 1921-01-20T13:23:46Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 20th and 06:51 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 25422 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Fuzhou, 1921: Thursday 20 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": "1921-01-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Putradā Ekādaśī 1921 falls on Thursday 20 January. Ekādaśī runs from 23:48 on Wed 19 Jan to 21:24 on Thu 20 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-01-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-01-21", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2713, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-01-21T18:22:09+08:00", "utc": "1921-01-21T10:22:09Z", "ms": -1544535470755.7136 }, "end": { "local": "1921-01-22T14:51:49+08:00", "utc": "1921-01-22T06:51:49Z", "ms": -1544461691162.4326 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-01-21T18:22:09+08:00", "utc": "1921-01-21T10:22:09Z", "ms": -1544535470755.7136 }, "end": { "local": "1921-01-22T14:51:49+08:00", "utc": "1921-01-22T06:51:49Z", "ms": -1544461691162.4326 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-01-21", "window": { "start": { "local": "1921-01-21T17:36:56+08:00", "utc": "1921-01-21T09:36:56Z", "ms": -1544538184065.9272 }, "end": { "local": "1921-01-21T19:22:50+08:00", "utc": "1921-01-21T11:22:50Z", "ms": -1544531829636.1492 } }, "covered_min": 61, "window_min": 106, "qualifies": true }, { "local_date": "1921-01-22", "window": { "start": { "local": "1921-01-22T17:37:42+08:00", "utc": "1921-01-22T09:37:42Z", "ms": -1544451737657.716 }, "end": { "local": "1921-01-22T19:23:29+08:00", "utc": "1921-01-22T11:23:29Z", "ms": -1544445391280.3867 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:22 on Fri 21 Jan to 14:52 on Sat 22 Jan.", "fact": "1921-01-21T10:22:09Z → 1921-01-22T06:51:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:37–19:23 on the 21st, 17:38–19:23 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 61 of 106 minutes on the 21st and 0 of 106 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 2713 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Friday 21 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": "1921-01-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Friday 21 January. Trayodaśī runs from 18:22 on Fri 21 Jan to 14:52 on Sat 22 Jan and covers 61 of 106 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-01-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-01-26", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-01-26", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 783, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-01-26T20:37:27+08:00", "utc": "1921-01-26T12:37:27Z", "ms": -1544095353206.026 }, "end": { "local": "1921-01-27T18:10:05+08:00", "utc": "1921-01-27T10:10:05Z", "ms": -1544017795347.199 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-01-26T20:37:27+08:00", "utc": "1921-01-26T12:37:27Z", "ms": -1544095353206.026 }, "end": { "local": "1921-01-27T18:10:05+08:00", "utc": "1921-01-27T10:10:05Z", "ms": -1544017795347.199 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-01-26", "window": { "start": { "local": "1921-01-26T20:24:24+08:00", "utc": "1921-01-26T12:24:24Z", "ms": -1544096136486.9182 }, "end": { "local": "1921-01-26T20:24:24+08:00", "utc": "1921-01-26T12:24:24Z", "ms": -1544096136486.9182 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-01-27", "window": { "start": { "local": "1921-01-27T21:26:28+08:00", "utc": "1921-01-27T13:26:28Z", "ms": -1544006012429.4756 }, "end": { "local": "1921-01-27T21:26:28+08:00", "utc": "1921-01-27T13:26:28Z", "ms": -1544006012429.4756 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:37 on Wed 26 Jan to 18:10 on Thu 27 Jan.", "fact": "1921-01-26T12:37:27Z → 1921-01-27T10:10:05Z" }, { "step": "kaala", "text": "Moonrise is at 20:24 on the 26th and 21:26 on the 27th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 783 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Wednesday 26 January.", "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": "1921-01-26", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-01-26", "confidence": "boundary" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Wednesday 26 January. Caturthī runs from 20:37 on Wed 26 Jan to 18:10 on Thu 27 Jan, and is current at moonrise on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-01-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ekadashi?on=1921-02-03", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29251, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-02-02T20:12:57+08:00", "utc": "1921-02-02T12:12:57Z", "ms": -1543492022724.4272 }, "end": { "local": "1921-02-03T22:38:50+08:00", "utc": "1921-02-03T14:38:50Z", "ms": -1543396870408.716 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-02T20:12:57+08:00", "utc": "1921-02-02T12:12:57Z", "ms": -1543492022724.4272 }, "end": { "local": "1921-02-03T22:38:50+08:00", "utc": "1921-02-03T14:38:50Z", "ms": -1543396870408.716 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-02-03", "window": { "start": { "local": "1921-02-03T06:46:52+08:00", "utc": "1921-02-02T22:46:52Z", "ms": -1543453988463.1077 }, "end": { "local": "1921-02-03T06:46:52+08:00", "utc": "1921-02-02T22:46:52Z", "ms": -1543453988463.1077 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-02-04", "window": { "start": { "local": "1921-02-04T06:46:21+08:00", "utc": "1921-02-03T22:46:21Z", "ms": -1543367619249.3672 }, "end": { "local": "1921-02-04T06:46:21+08:00", "utc": "1921-02-03T22:46:21Z", "ms": -1543367619249.3672 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:13 on Wed 2 Feb to 22:39 on Thu 3 Feb.", "fact": "1921-02-02T12:12:57Z → 1921-02-03T14:38:50Z" }, { "step": "kaala", "text": "Sunrise is at 06:47 on the 3rd and 06:46 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29251 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Fuzhou, 1921: Thursday 3 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": "1921-02-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Ṣaṭtilā Ekādaśī 1921 falls on Thursday 3 February. Ekādaśī runs from 20:13 on Wed 2 Feb to 22:39 on Thu 3 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-02-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-02-05", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20560, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-02-05T01:13:59+08:00", "utc": "1921-02-04T17:13:59Z", "ms": -1543301161002.1355 }, "end": { "local": "1921-02-06T03:49:21+08:00", "utc": "1921-02-05T19:49:21Z", "ms": -1543205438684.5344 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-05T01:13:59+08:00", "utc": "1921-02-04T17:13:59Z", "ms": -1543301161002.1355 }, "end": { "local": "1921-02-06T03:49:21+08:00", "utc": "1921-02-05T19:49:21Z", "ms": -1543205438684.5344 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-02-04", "window": { "start": { "local": "1921-02-04T17:47:32+08:00", "utc": "1921-02-04T09:47:32Z", "ms": -1543327947679.9573 }, "end": { "local": "1921-02-04T19:31:19+08:00", "utc": "1921-02-04T11:31:19Z", "ms": -1543321721499.1577 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "1921-02-05", "window": { "start": { "local": "1921-02-05T17:48:16+08:00", "utc": "1921-02-05T09:48:16Z", "ms": -1543241504040.4973 }, "end": { "local": "1921-02-05T19:31:52+08:00", "utc": "1921-02-05T11:31:52Z", "ms": -1543235288124.2285 } }, "covered_min": 104, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:14 on Sat 5 Feb to 03:49 on Sun 6 Feb.", "fact": "1921-02-04T17:13:59Z → 1921-02-05T19:49:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:48–19:31 on the 4th, 17:48–19:32 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 104 minutes on the 4th and 104 of 104 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20560 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Saturday 5 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": "1921-02-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Saturday 5 February. Trayodaśī runs from 01:14 on Sat 5 Feb to 03:49 on Sun 6 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-02-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-06", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1581, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-02-06T03:49:21+08:00", "utc": "1921-02-05T19:49:21Z", "ms": -1543205438684.5344 }, "end": { "local": "1921-02-07T06:18:19+08:00", "utc": "1921-02-06T22:18:19Z", "ms": -1543110100523.2632 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-06T03:49:21+08:00", "utc": "1921-02-05T19:49:21Z", "ms": -1543205438684.5344 }, "end": { "local": "1921-02-07T06:18:19+08:00", "utc": "1921-02-06T22:18:19Z", "ms": -1543110100523.2632 } }, "kaala": "arunodaya", "days": [ { "local_date": "1921-02-06", "window": { "start": { "local": "1921-02-06T05:01:39+08:00", "utc": "1921-02-05T21:01:39Z", "ms": -1543201100584.7505 }, "end": { "local": "1921-02-06T06:45:15+08:00", "utc": "1921-02-05T22:45:15Z", "ms": -1543194884668.4817 } }, "covered_min": 104, "window_min": 104, "qualifies": true }, { "local_date": "1921-02-07", "window": { "start": { "local": "1921-02-07T05:01:15+08:00", "utc": "1921-02-06T21:01:15Z", "ms": -1543114724794.9993 }, "end": { "local": "1921-02-07T06:44:41+08:00", "utc": "1921-02-06T22:44:41Z", "ms": -1543108519264.183 } }, "covered_min": 77, "window_min": 103, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:49 on Sun 6 Feb to 06:18 on Mon 7 Feb.", "fact": "1921-02-05T19:49:21Z → 1921-02-06T22:18:19Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:02–06:45 on the 6th, 05:01–06:45 on the 7th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 104 of 104 minutes on the 6th and 77 of 103 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both dawns qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 1581 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Fuzhou, 1921: Sunday 6 February.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1921-02-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-06", "confidence": "boundary" } ], "quote": "In Fuzhou, Yama Tarpaṇa 1921 falls on Sunday 6 February. Caturdaśī runs from 03:49 on Sun 6 Feb to 06:18 on Mon 7 Feb and covers all of aruṇodaya that dawn. It also reaches the next dawn for 77 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/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/shivaratri?on=1921-02-06", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11316, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-02-06T03:49:21+08:00", "utc": "1921-02-05T19:49:21Z", "ms": -1543205438684.5344 }, "end": { "local": "1921-02-07T06:18:19+08:00", "utc": "1921-02-06T22:18:19Z", "ms": -1543110100523.2632 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-06T03:49:21+08:00", "utc": "1921-02-05T19:49:21Z", "ms": -1543205438684.5344 }, "end": { "local": "1921-02-07T06:18:19+08:00", "utc": "1921-02-06T22:18:19Z", "ms": -1543110100523.2632 } }, "kaala": "nishita", "days": [ { "local_date": "1921-02-05", "window": { "start": { "local": "1921-02-05T23:52:46+08:00", "utc": "1921-02-05T15:52:46Z", "ms": -1543219634354.4895 }, "end": { "local": "1921-02-06T00:40:46+08:00", "utc": "1921-02-05T16:40:46Z", "ms": -1543216754354.4895 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-02-06", "window": { "start": { "local": "1921-02-06T23:52:50+08:00", "utc": "1921-02-06T15:52:50Z", "ms": -1543133230004.7437 }, "end": { "local": "1921-02-07T00:40:50+08:00", "utc": "1921-02-06T16:40:50Z", "ms": -1543130350004.7437 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:49 on Sun 6 Feb to 06:18 on Mon 7 Feb.", "fact": "1921-02-05T19:49:21Z → 1921-02-06T22:18:19Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:53–00:41 on the 5th, 23:53–00:41 on the 6th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11316 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Sunday 6 February.", "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": "1921-02-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Sunday 6 February. Caturdaśī runs from 03:49 on Sun 6 Feb to 06:18 on Mon 7 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-02-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10142, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-02-11T13:57:57+08:00", "utc": "1921-02-11T05:57:57Z", "ms": -1542736922942.3806 }, "end": { "local": "1921-02-12T15:04:09+08:00", "utc": "1921-02-12T07:04:09Z", "ms": -1542646550574.6765 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-11T13:57:57+08:00", "utc": "1921-02-11T05:57:57Z", "ms": -1542736922942.3806 }, "end": { "local": "1921-02-12T15:04:09+08:00", "utc": "1921-02-12T07:04:09Z", "ms": -1542646550574.6765 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-02-11", "window": { "start": { "local": "1921-02-11T17:52:30+08:00", "utc": "1921-02-11T09:52:30Z", "ms": -1542722849954.954 }, "end": { "local": "1921-02-11T19:35:02+08:00", "utc": "1921-02-11T11:35:02Z", "ms": -1542716698004.6536 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "1921-02-12", "window": { "start": { "local": "1921-02-12T17:53:11+08:00", "utc": "1921-02-12T09:53:11Z", "ms": -1542636409022.3784 }, "end": { "local": "1921-02-12T19:35:32+08:00", "utc": "1921-02-12T11:35:32Z", "ms": -1542630268087.9888 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:58 on Fri 11 Feb to 15:04 on Sat 12 Feb.", "fact": "1921-02-11T05:57:57Z → 1921-02-12T07:04:09Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:53–19:35 on the 11th, 17:53–19:36 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 103 of 103 minutes on the 11th and 0 of 102 on the 12th.", "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 10142 s" }, { "step": "ruling", "text": "Tila Caturthī, Fuzhou, 1921: Friday 11 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-02-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Tila Caturthī 1921 falls on Friday 11 February. Caturthī runs from 13:58 on Fri 11 Feb to 15:04 on Sat 12 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4597, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-02-11T13:57:57+08:00", "utc": "1921-02-11T05:57:57Z", "ms": -1542736922942.3806 }, "end": { "local": "1921-02-12T15:04:09+08:00", "utc": "1921-02-12T07:04:09Z", "ms": -1542646550574.6765 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-11T13:57:57+08:00", "utc": "1921-02-11T05:57:57Z", "ms": -1542736922942.3806 }, "end": { "local": "1921-02-12T15:04:09+08:00", "utc": "1921-02-12T07:04:09Z", "ms": -1542646550574.6765 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-02-11", "window": { "start": { "local": "1921-02-11T11:53:20+08:00", "utc": "1921-02-11T03:53:20Z", "ms": -1542744399862.8975 }, "end": { "local": "1921-02-11T12:41:20+08:00", "utc": "1921-02-11T04:41:20Z", "ms": -1542741519862.8975 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-02-12", "window": { "start": { "local": "1921-02-12T11:53:20+08:00", "utc": "1921-02-12T03:53:20Z", "ms": -1542657999675.039 }, "end": { "local": "1921-02-12T12:41:20+08:00", "utc": "1921-02-12T04:41:20Z", "ms": -1542655119675.039 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:58 on Fri 11 Feb to 15:04 on Sat 12 Feb.", "fact": "1921-02-11T05:57:57Z → 1921-02-12T07:04:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 11th, 11:53–12:41 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4597 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Fuzhou, 1921: Saturday 12 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-02-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1921 falls on Saturday 12 February. Caturthī runs from 13:58 on Fri 11 Feb to 15:04 on Sat 12 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8569, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1921-02-12T15:04:09+08:00", "utc": "1921-02-12T07:04:09Z", "ms": -1542646550574.6765 }, "end": { "local": "1921-02-13T15:43:09+08:00", "utc": "1921-02-13T07:43:09Z", "ms": -1542557810686.9946 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-12T15:04:09+08:00", "utc": "1921-02-12T07:04:09Z", "ms": -1542646550574.6765 }, "end": { "local": "1921-02-13T15:43:09+08:00", "utc": "1921-02-13T07:43:09Z", "ms": -1542557810686.9946 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-02-12", "window": { "start": { "local": "1921-02-12T11:53:20+08:00", "utc": "1921-02-12T03:53:20Z", "ms": -1542657999675.039 }, "end": { "local": "1921-02-12T12:41:20+08:00", "utc": "1921-02-12T04:41:20Z", "ms": -1542655119675.039 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-02-13", "window": { "start": { "local": "1921-02-13T11:53:20+08:00", "utc": "1921-02-13T03:53:20Z", "ms": -1542571600268.142 }, "end": { "local": "1921-02-13T12:41:20+08:00", "utc": "1921-02-13T04:41:20Z", "ms": -1542568720268.142 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 15:04 on Sat 12 Feb to 15:43 on Sun 13 Feb.", "fact": "1921-02-12T07:04:09Z → 1921-02-13T07:43:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 12th, 11:53–12:41 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8569 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Fuzhou, 1921: Sunday 13 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-02-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Śrī Pañcamī 1921 falls on Sunday 13 February. Pañcamī runs from 15:04 on Sat 12 Feb to 15:43 on Sun 13 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8569, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1921-02-12T15:04:09+08:00", "utc": "1921-02-12T07:04:09Z", "ms": -1542646550574.6765 }, "end": { "local": "1921-02-13T15:43:09+08:00", "utc": "1921-02-13T07:43:09Z", "ms": -1542557810686.9946 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-12T15:04:09+08:00", "utc": "1921-02-12T07:04:09Z", "ms": -1542646550574.6765 }, "end": { "local": "1921-02-13T15:43:09+08:00", "utc": "1921-02-13T07:43:09Z", "ms": -1542557810686.9946 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-02-12", "window": { "start": { "local": "1921-02-12T11:53:20+08:00", "utc": "1921-02-12T03:53:20Z", "ms": -1542657999675.039 }, "end": { "local": "1921-02-12T12:41:20+08:00", "utc": "1921-02-12T04:41:20Z", "ms": -1542655119675.039 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-02-13", "window": { "start": { "local": "1921-02-13T11:53:20+08:00", "utc": "1921-02-13T03:53:20Z", "ms": -1542571600268.142 }, "end": { "local": "1921-02-13T12:41:20+08:00", "utc": "1921-02-13T04:41:20Z", "ms": -1542568720268.142 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 15:04 on Sat 12 Feb to 15:43 on Sun 13 Feb.", "fact": "1921-02-12T07:04:09Z → 1921-02-13T07:43:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 12th, 11:53–12:41 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8569 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Fuzhou, 1921: Sunday 13 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-02-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Vasanta Pañcamī 1921 falls on Sunday 13 February. Pañcamī runs from 15:04 on Sat 12 Feb to 15:43 on Sun 13 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31333, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1921-02-14T15:50:18+08:00", "utc": "1921-02-14T07:50:18Z", "ms": -1542470982466.673 }, "end": { "local": "1921-02-15T15:21:35+08:00", "utc": "1921-02-15T07:21:35Z", "ms": -1542386305496.523 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-14T15:50:18+08:00", "utc": "1921-02-14T07:50:18Z", "ms": -1542470982466.673 }, "end": { "local": "1921-02-15T15:21:35+08:00", "utc": "1921-02-15T07:21:35Z", "ms": -1542386305496.523 } }, "kaala": "arunodaya", "days": [ { "local_date": "1921-02-14", "window": { "start": { "local": "1921-02-14T04:57:55+08:00", "utc": "1921-02-13T20:57:55Z", "ms": -1542510124637.253 }, "end": { "local": "1921-02-14T06:40:05+08:00", "utc": "1921-02-13T22:40:05Z", "ms": -1542503994808.8567 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "1921-02-15", "window": { "start": { "local": "1921-02-15T04:57:23+08:00", "utc": "1921-02-14T20:57:23Z", "ms": -1542423757324.2083 }, "end": { "local": "1921-02-15T06:39:21+08:00", "utc": "1921-02-14T22:39:21Z", "ms": -1542417638687.844 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 15:50 on Mon 14 Feb to 15:22 on Tue 15 Feb.", "fact": "1921-02-14T07:50:18Z → 1921-02-15T07:21:35Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:58–06:40 on the 14th, 04:57–06:39 on the 15th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during aruṇodaya. It covers 0 of 102 minutes on the 14th and 102 of 102 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one dawn qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31333 s" }, { "step": "ruling", "text": "Ratha Saptamī, Fuzhou, 1921: Tuesday 15 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-02-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Ratha Saptamī 1921 falls on Tuesday 15 February. Saptamī runs from 15:50 on Mon 14 Feb to 15:22 on Tue 15 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-02-19", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2423, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-02-18T10:08:18+08:00", "utc": "1921-02-18T02:08:18Z", "ms": -1542145901713.983 }, "end": { "local": "1921-02-19T07:16:39+08:00", "utc": "1921-02-18T23:16:39Z", "ms": -1542069801217.0232 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-18T10:08:18+08:00", "utc": "1921-02-18T02:08:18Z", "ms": -1542145901713.983 }, "end": { "local": "1921-02-19T07:16:39+08:00", "utc": "1921-02-18T23:16:39Z", "ms": -1542069801217.0232 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-02-18", "window": { "start": { "local": "1921-02-18T06:37:03+08:00", "utc": "1921-02-17T22:37:03Z", "ms": -1542158576587.4053 }, "end": { "local": "1921-02-18T06:37:03+08:00", "utc": "1921-02-17T22:37:03Z", "ms": -1542158576587.4053 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-02-19", "window": { "start": { "local": "1921-02-19T06:36:15+08:00", "utc": "1921-02-18T22:36:15Z", "ms": -1542072224554.2842 }, "end": { "local": "1921-02-19T06:36:15+08:00", "utc": "1921-02-18T22:36:15Z", "ms": -1542072224554.2842 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:08 on Fri 18 Feb to 07:17 on Sat 19 Feb.", "fact": "1921-02-18T02:08:18Z → 1921-02-18T23:16:39Z" }, { "step": "kaala", "text": "Sunrise is at 06:37 on the 18th and 06:36 on the 19th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 18th and is on the 19th.", "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 2423 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Fuzhou, 1921: Saturday 19 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": "1921-02-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Jayā Ekādaśī 1921 falls on Saturday 19 February. Ekādaśī runs from 10:08 on Fri 18 Feb to 07:17 on Sat 19 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-02-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16581, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1921-02-19T07:16:39+08:00", "utc": "1921-02-18T23:16:39Z", "ms": -1542069801217.0232 }, "end": { "local": "1921-02-20T04:01:40+08:00", "utc": "1921-02-19T20:01:40Z", "ms": -1541995099965.6057 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-19T07:16:39+08:00", "utc": "1921-02-18T23:16:39Z", "ms": -1542069801217.0232 }, "end": { "local": "1921-02-20T04:01:40+08:00", "utc": "1921-02-19T20:01:40Z", "ms": -1541995099965.6057 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-02-19", "window": { "start": { "local": "1921-02-19T11:53:00+08:00", "utc": "1921-02-19T03:53:00Z", "ms": -1542053219717.0571 }, "end": { "local": "1921-02-19T12:41:00+08:00", "utc": "1921-02-19T04:41:00Z", "ms": -1542050339717.0571 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-02-20", "window": { "start": { "local": "1921-02-20T11:52:55+08:00", "utc": "1921-02-20T03:52:55Z", "ms": -1541966825491.5947 }, "end": { "local": "1921-02-20T12:40:55+08:00", "utc": "1921-02-20T04:40:55Z", "ms": -1541963945491.5947 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 07:17 on Sat 19 Feb to 04:02 on Sun 20 Feb.", "fact": "1921-02-18T23:16:39Z → 1921-02-19T20:01:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 19th, 11:53–12:41 on the 20th.", "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 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 16581 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Fuzhou, 1921: Saturday 19 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhishma-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-02-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Bhīṣma Dvādaśī 1921 falls on Saturday 19 February. Dvādaśī runs from 07:17 on Sat 19 Feb to 04:02 on Sun 20 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-02-20", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17589, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-02-20T04:01:40+08:00", "utc": "1921-02-19T20:01:40Z", "ms": -1541995099965.6057 }, "end": { "local": "1921-02-21T00:32:21+08:00", "utc": "1921-02-20T16:32:21Z", "ms": -1541921258792.2751 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-20T04:01:40+08:00", "utc": "1921-02-19T20:01:40Z", "ms": -1541995099965.6057 }, "end": { "local": "1921-02-21T00:32:21+08:00", "utc": "1921-02-20T16:32:21Z", "ms": -1541921258792.2751 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-02-19", "window": { "start": { "local": "1921-02-19T17:57:45+08:00", "utc": "1921-02-19T09:57:45Z", "ms": -1542031334879.83 }, "end": { "local": "1921-02-19T19:38:47+08:00", "utc": "1921-02-19T11:38:47Z", "ms": -1542025273359.16 } }, "covered_min": 0, "window_min": 101, "qualifies": false }, { "local_date": "1921-02-20", "window": { "start": { "local": "1921-02-20T17:58:22+08:00", "utc": "1921-02-20T09:58:22Z", "ms": -1541944897508.385 }, "end": { "local": "1921-02-20T19:39:12+08:00", "utc": "1921-02-20T11:39:12Z", "ms": -1541938847616.519 } }, "covered_min": 101, "window_min": 101, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:02 on Sun 20 Feb to 00:32 on Mon 21 Feb.", "fact": "1921-02-19T20:01:40Z → 1921-02-20T16:32:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:58–19:39 on the 19th, 17:58–19:39 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 101 minutes on the 19th and 101 of 101 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17589 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Sunday 20 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": "1921-02-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Sunday 20 February. Trayodaśī runs from 04:02 on Sun 20 Feb to 00:32 on Mon 21 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-02-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17471, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-02-21T20:58:50+08:00", "utc": "1921-02-21T12:58:50Z", "ms": -1541847669890.1013 }, "end": { "local": "1921-02-22T17:31:52+08:00", "utc": "1921-02-22T09:31:52Z", "ms": -1541773687614.8071 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1921-02-21T20:58:50+08:00", "utc": "1921-02-21T12:58:50Z", "ms": -1541847669890.1013 }, "end": { "local": "1921-02-22T17:31:52+08:00", "utc": "1921-02-22T09:31:52Z", "ms": -1541773687614.8071 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-02-21", "window": { "start": { "local": "1921-02-21T11:52:48+08:00", "utc": "1921-02-21T03:52:48Z", "ms": -1541880431947.045 }, "end": { "local": "1921-02-21T12:40:48+08:00", "utc": "1921-02-21T04:40:48Z", "ms": -1541877551947.045 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-02-22", "window": { "start": { "local": "1921-02-22T11:52:41+08:00", "utc": "1921-02-22T03:52:41Z", "ms": -1541794039063.8408 }, "end": { "local": "1921-02-22T12:40:41+08:00", "utc": "1921-02-22T04:40:41Z", "ms": -1541791159063.8408 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 20:59 on Mon 21 Feb to 17:32 on Tue 22 Feb.", "fact": "1921-02-21T12:58:50Z → 1921-02-22T09:31:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 21st, 11:53–12:41 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17471 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Fuzhou, 1921: Tuesday 22 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": "1921-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Māghī Pūrṇimā 1921 falls on Tuesday 22 February. Pūrṇimā runs from 20:59 on Mon 21 Feb to 17:32 on Tue 22 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-02-25", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-02-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40096, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-02-25T09:36:23+08:00", "utc": "1921-02-25T01:36:23Z", "ms": -1541543017150.2222 }, "end": { "local": "1921-02-26T08:16:47+08:00", "utc": "1921-02-26T00:16:47Z", "ms": -1541461393225.1245 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1921-02-25T09:36:23+08:00", "utc": "1921-02-25T01:36:23Z", "ms": -1541543017150.2222 }, "end": { "local": "1921-02-26T08:16:47+08:00", "utc": "1921-02-26T00:16:47Z", "ms": -1541461393225.1245 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-02-24", "window": { "start": { "local": "1921-02-24T20:07:57+08:00", "utc": "1921-02-24T12:07:57Z", "ms": -1541591523107.3196 }, "end": { "local": "1921-02-24T20:07:57+08:00", "utc": "1921-02-24T12:07:57Z", "ms": -1541591523107.3196 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-02-25", "window": { "start": { "local": "1921-02-25T21:08:31+08:00", "utc": "1921-02-25T13:08:31Z", "ms": -1541501489107.4438 }, "end": { "local": "1921-02-25T21:08:31+08:00", "utc": "1921-02-25T13:08:31Z", "ms": -1541501489107.4438 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:36 on Fri 25 Feb to 08:17 on Sat 26 Feb.", "fact": "1921-02-25T01:36:23Z → 1921-02-26T00:16:47Z" }, { "step": "kaala", "text": "Moonrise is at 20:08 on the 24th and 21:09 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 24th and is on the 25th.", "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 40096 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Friday 25 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-02-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-02-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Friday 25 February. Caturthī runs from 09:36 on Fri 25 Feb to 08:17 on Sat 26 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-02-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ekadashi?on=1921-03-05", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33645, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-03-04T15:45:21+08:00", "utc": "1921-03-04T07:45:21Z", "ms": -1540916079000.444 }, "end": { "local": "1921-03-05T18:18:30+08:00", "utc": "1921-03-05T10:18:30Z", "ms": -1540820490182.4888 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1921-03-04T15:45:21+08:00", "utc": "1921-03-04T07:45:21Z", "ms": -1540916079000.444 }, "end": { "local": "1921-03-05T18:18:30+08:00", "utc": "1921-03-05T10:18:30Z", "ms": -1540820490182.4888 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-03-04", "window": { "start": { "local": "1921-03-04T06:24:36+08:00", "utc": "1921-03-03T22:24:36Z", "ms": -1540949723873.9858 }, "end": { "local": "1921-03-04T06:24:36+08:00", "utc": "1921-03-03T22:24:36Z", "ms": -1540949723873.9858 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-03-05", "window": { "start": { "local": "1921-03-05T06:23:38+08:00", "utc": "1921-03-04T22:23:38Z", "ms": -1540863382459.148 }, "end": { "local": "1921-03-05T06:23:38+08:00", "utc": "1921-03-04T22:23:38Z", "ms": -1540863382459.148 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:45 on Fri 4 Mar to 18:18 on Sat 5 Mar.", "fact": "1921-03-04T07:45:21Z → 1921-03-05T10:18:30Z" }, { "step": "kaala", "text": "Sunrise is at 06:25 on the 4th and 06:24 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is 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 33645 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Fuzhou, 1921: Saturday 5 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": "1921-03-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Vijayā Ekādaśī 1921 falls on Saturday 5 March. Ekādaśī runs from 15:45 on Fri 4 Mar to 18:18 on Sat 5 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-03-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-07", "confidence": "boundary", "boundary_reasons": [ "tie-break-disputed" ], "boundary_margin_s": 313, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-03-07T22:53:36+08:00", "utc": "1921-03-07T14:53:36Z", "ms": -1540631184110.2542 }, "end": { "local": "1921-03-09T00:42:45+08:00", "utc": "1921-03-08T16:42:45Z", "ms": -1540538234814.3257 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1921-03-07T22:53:36+08:00", "utc": "1921-03-07T14:53:36Z", "ms": -1540631184110.2542 }, "end": { "local": "1921-03-09T00:42:45+08:00", "utc": "1921-03-08T16:42:45Z", "ms": -1540538234814.3257 } }, "kaala": "nishita", "days": [ { "local_date": "1921-03-07", "window": { "start": { "local": "1921-03-07T23:49:47+08:00", "utc": "1921-03-07T15:49:47Z", "ms": -1540627812773.5435 }, "end": { "local": "1921-03-08T00:37:47+08:00", "utc": "1921-03-07T16:37:47Z", "ms": -1540624932773.5435 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-03-08", "window": { "start": { "local": "1921-03-08T23:49:33+08:00", "utc": "1921-03-08T15:49:33Z", "ms": -1540541427344.334 }, "end": { "local": "1921-03-09T00:37:33+08:00", "utc": "1921-03-08T16:37:33Z", "ms": -1540538547344.334 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:54 on Mon 7 Mar to 00:43 on Wed 9 Mar.", "fact": "1921-03-07T14:53:36Z → 1921-03-08T16:42:45Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:50–00:38 on the 7th, 23:50–00:38 on the 8th.", "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 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both nights qualify and the cited authorities disagree. The one covered longer is ruled, as a boundary.", "fact": "priority: disputed → greater-coverage · margin 313 s" }, { "step": "ruling", "text": "Mahāśivarātri, Fuzhou, 1921: Monday 7 March.", "fact": "confidence: boundary (tie-break-disputed)" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-03-07", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-07", "confidence": "boundary" } ], "quote": "In Fuzhou, Mahāśivarātri 1921 falls on Monday 7 March. Caturdaśī runs from 22:54 on Mon 7 Mar to 00:43 on Wed 9 Mar and covers all of niśītha that night. It also reaches the next night for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-03-07", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3566, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-03-06T20:43:52+08:00", "utc": "1921-03-06T12:43:52Z", "ms": -1540725367964.2476 }, "end": { "local": "1921-03-07T22:53:36+08:00", "utc": "1921-03-07T14:53:36Z", "ms": -1540631184110.2542 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1921-03-06T20:43:52+08:00", "utc": "1921-03-06T12:43:52Z", "ms": -1540725367964.2476 }, "end": { "local": "1921-03-07T22:53:36+08:00", "utc": "1921-03-07T14:53:36Z", "ms": -1540631184110.2542 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-03-06", "window": { "start": { "local": "1921-03-06T18:06:24+08:00", "utc": "1921-03-06T10:06:24Z", "ms": -1540734815941.3135 }, "end": { "local": "1921-03-06T19:44:26+08:00", "utc": "1921-03-06T11:44:26Z", "ms": -1540728933981.1042 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "1921-03-07", "window": { "start": { "local": "1921-03-07T18:06:56+08:00", "utc": "1921-03-07T10:06:56Z", "ms": -1540648384164.233 }, "end": { "local": "1921-03-07T19:44:46+08:00", "utc": "1921-03-07T11:44:46Z", "ms": -1540642514460.049 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:44 on Sun 6 Mar to 22:54 on Mon 7 Mar.", "fact": "1921-03-06T12:43:52Z → 1921-03-07T14:53:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:06–19:44 on the 6th, 18:07–19:45 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 0 of 98 minutes on the 6th and 98 of 98 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 3566 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Monday 7 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": "1921-03-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Monday 7 March. Trayodaśī runs from 20:44 on Sun 6 Mar to 22:54 on Mon 7 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-03-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-03-13", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28028, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-03-13T04:01:38+08:00", "utc": "1921-03-12T20:01:38Z", "ms": -1540180701960.9268 }, "end": { "local": "1921-03-14T03:50:05+08:00", "utc": "1921-03-13T19:50:05Z", "ms": -1540094994610.3782 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1921-03-13T04:01:38+08:00", "utc": "1921-03-12T20:01:38Z", "ms": -1540180701960.9268 }, "end": { "local": "1921-03-14T03:50:05+08:00", "utc": "1921-03-13T19:50:05Z", "ms": -1540094994610.3782 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-03-13", "window": { "start": { "local": "1921-03-13T11:48:46+08:00", "utc": "1921-03-13T03:48:46Z", "ms": -1540152674139.396 }, "end": { "local": "1921-03-13T12:36:46+08:00", "utc": "1921-03-13T04:36:46Z", "ms": -1540149794139.396 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-03-14", "window": { "start": { "local": "1921-03-14T11:48:29+08:00", "utc": "1921-03-14T03:48:29Z", "ms": -1540066290527.5142 }, "end": { "local": "1921-03-14T12:36:29+08:00", "utc": "1921-03-14T04:36:29Z", "ms": -1540063410527.5142 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:02 on Sun 13 Mar to 03:50 on Mon 14 Mar.", "fact": "1921-03-12T20:01:38Z → 1921-03-13T19:50:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 13th, 11:48–12:36 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28028 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 1921: Sunday 13 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": "1921-03-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 1921 falls on Sunday 13 March. Caturthī runs from 04:02 on Sun 13 Mar to 03:50 on Mon 14 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-03-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ekadashi?on=1921-03-20", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32682, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-03-19T17:59:53+08:00", "utc": "1921-03-19T09:59:53Z", "ms": -1539612007419.3079 }, "end": { "local": "1921-03-20T15:12:50+08:00", "utc": "1921-03-20T07:12:50Z", "ms": -1539535630468.6135 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1921-03-19T17:59:53+08:00", "utc": "1921-03-19T09:59:53Z", "ms": -1539612007419.3079 }, "end": { "local": "1921-03-20T15:12:50+08:00", "utc": "1921-03-20T07:12:50Z", "ms": -1539535630468.6135 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-03-19", "window": { "start": { "local": "1921-03-19T06:09:12+08:00", "utc": "1921-03-18T22:09:12Z", "ms": -1539654648404.4326 }, "end": { "local": "1921-03-19T06:09:12+08:00", "utc": "1921-03-18T22:09:12Z", "ms": -1539654648404.4326 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-03-20", "window": { "start": { "local": "1921-03-20T06:08:07+08:00", "utc": "1921-03-19T22:08:07Z", "ms": -1539568312513.6196 }, "end": { "local": "1921-03-20T06:08:07+08:00", "utc": "1921-03-19T22:08:07Z", "ms": -1539568312513.6196 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:00 on Sat 19 Mar to 15:13 on Sun 20 Mar.", "fact": "1921-03-19T09:59:53Z → 1921-03-20T07:12:50Z" }, { "step": "kaala", "text": "Sunrise is at 06:09 on the 19th and 06:08 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 32682 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Fuzhou, 1921: Sunday 20 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": "1921-03-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Āmalakī Ekādaśī 1921 falls on Sunday 20 March. Ekādaśī runs from 18:00 on Sat 19 Mar to 15:13 on Sun 20 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-03-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-03-21", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21278, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-03-21T12:19:14+08:00", "utc": "1921-03-21T04:19:14Z", "ms": -1539459645879.767 }, "end": { "local": "1921-03-22T09:26:44+08:00", "utc": "1921-03-22T01:26:44Z", "ms": -1539383595859.0593 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1921-03-21T12:19:14+08:00", "utc": "1921-03-21T04:19:14Z", "ms": -1539459645879.767 }, "end": { "local": "1921-03-22T09:26:44+08:00", "utc": "1921-03-22T01:26:44Z", "ms": -1539383595859.0593 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-03-21", "window": { "start": { "local": "1921-03-21T18:13:53+08:00", "utc": "1921-03-21T10:13:53Z", "ms": -1539438367441.91 }, "end": { "local": "1921-03-21T19:48:49+08:00", "utc": "1921-03-21T11:48:49Z", "ms": -1539432670606.2083 } }, "covered_min": 95, "window_min": 95, "qualifies": true }, { "local_date": "1921-03-22", "window": { "start": { "local": "1921-03-22T18:14:21+08:00", "utc": "1921-03-22T10:14:21Z", "ms": -1539351939250.3574 }, "end": { "local": "1921-03-22T19:49:05+08:00", "utc": "1921-03-22T11:49:05Z", "ms": -1539346254772.3225 } }, "covered_min": 0, "window_min": 95, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:19 on Mon 21 Mar to 09:27 on Tue 22 Mar.", "fact": "1921-03-21T04:19:14Z → 1921-03-22T01:26:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:14–19:49 on the 21st, 18:14–19:49 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 95 of 95 minutes on the 21st and 0 of 95 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21278 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Monday 21 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": "1921-03-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Monday 21 March. Trayodaśī runs from 12:19 on Mon 21 Mar to 09:27 on Tue 22 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-03-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32713, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-03-23T06:43:37+08:00", "utc": "1921-03-22T22:43:37Z", "ms": -1539306983032.5981 }, "end": { "local": "1921-03-24T04:18:25+08:00", "utc": "1921-03-23T20:18:25Z", "ms": -1539229294804.1353 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1921-03-23T06:43:37+08:00", "utc": "1921-03-22T22:43:37Z", "ms": -1539306983032.5981 }, "end": { "local": "1921-03-24T04:18:25+08:00", "utc": "1921-03-23T20:18:25Z", "ms": -1539229294804.1353 } }, "kaala": "sayahna", "days": [ { "local_date": "1921-03-23", "window": { "start": { "local": "1921-03-23T15:48:50+08:00", "utc": "1921-03-23T07:48:50Z", "ms": -1539274270083.288 }, "end": { "local": "1921-03-23T18:14:49+08:00", "utc": "1921-03-23T10:14:49Z", "ms": -1539265511187.8362 } }, "covered_min": 146, "window_min": 146, "qualifies": true }, { "local_date": "1921-03-24", "window": { "start": { "local": "1921-03-24T15:48:59+08:00", "utc": "1921-03-24T07:48:59Z", "ms": -1539187860632.3953 }, "end": { "local": "1921-03-24T18:15:17+08:00", "utc": "1921-03-24T10:15:17Z", "ms": -1539179083234.94 } }, "covered_min": 0, "window_min": 146, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:44 on Wed 23 Mar to 04:18 on Thu 24 Mar.", "fact": "1921-03-22T22:43:37Z → 1921-03-23T20:18:25Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:49–18:15 on the 23rd, 15:49–18:15 on the 24th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 146 of 146 minutes on the 23rd and 0 of 146 on the 24th.", "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 32713 s" }, { "step": "ruling", "text": "Holikā Dahana, Fuzhou, 1921: Wednesday 23 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "holika-dahana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana." } ], "not_evaluated": "The hour the row gives for the rite (\"it should be observed on second half of purnima at night\") is not tested: sāyāhna alone settles the day.", "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-23", "confidence": "determinate" } ], "quote": "In Fuzhou, Holikā Dahana 1921 falls on Wednesday 23 March. Pūrṇimā runs from 06:44 on Wed 23 Mar to 04:18 on Thu 24 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32713, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-03-23T06:43:37+08:00", "utc": "1921-03-22T22:43:37Z", "ms": -1539306983032.5981 }, "end": { "local": "1921-03-24T04:18:25+08:00", "utc": "1921-03-23T20:18:25Z", "ms": -1539229294804.1353 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1921-03-23T06:43:37+08:00", "utc": "1921-03-22T22:43:37Z", "ms": -1539306983032.5981 }, "end": { "local": "1921-03-24T04:18:25+08:00", "utc": "1921-03-23T20:18:25Z", "ms": -1539229294804.1353 } }, "kaala": "sayahna", "days": [ { "local_date": "1921-03-23", "window": { "start": { "local": "1921-03-23T15:48:50+08:00", "utc": "1921-03-23T07:48:50Z", "ms": -1539274270083.288 }, "end": { "local": "1921-03-23T18:14:49+08:00", "utc": "1921-03-23T10:14:49Z", "ms": -1539265511187.8362 } }, "covered_min": 146, "window_min": 146, "qualifies": true }, { "local_date": "1921-03-24", "window": { "start": { "local": "1921-03-24T15:48:59+08:00", "utc": "1921-03-24T07:48:59Z", "ms": -1539187860632.3953 }, "end": { "local": "1921-03-24T18:15:17+08:00", "utc": "1921-03-24T10:15:17Z", "ms": -1539179083234.94 } }, "covered_min": 0, "window_min": 146, "qualifies": false } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1921-03-23", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:44 on Wed 23 Mar to 04:18 on Thu 24 Mar.", "fact": "1921-03-22T22:43:37Z → 1921-03-23T20:18:25Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:49–18:15 on the 23rd, 15:49–18:15 on the 24th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 146 of 146 minutes on the 23rd and 0 of 146 on the 24th.", "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 32713 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Wednesday 23 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Fuzhou, 1921: Thursday 24 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "holi", "follows": { "festival": "holika-dahana", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Holika-dahana (Sayahnavyapini — it should be observed on second half of purnima at night), Dolayatra (Bengal & Orissa) (covering 4 ghatikas before sunrise of the day of festival), Holi — on the day after Holikadahana." } ], "kaala": "sayahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Holī 1921 falls on Thursday 24 March. It is kept the day after Holikā Dahana, which falls on Wednesday 23 March. Pūrṇimā runs from 06:44 on Wed 23 Mar to 04:18 on Thu 24 Mar and covers all of sāyāhna on the 23rd.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6325, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1921-03-24T04:18:25+08:00", "utc": "1921-03-23T20:18:25Z", "ms": -1539229294804.1353 }, "end": { "local": "1921-03-25T02:19:28+08:00", "utc": "1921-03-24T18:19:28Z", "ms": -1539150032046.1528 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-03-24T04:18:25+08:00", "utc": "1921-03-23T20:18:25Z", "ms": -1539229294804.1353 }, "end": { "local": "1921-03-25T02:19:28+08:00", "utc": "1921-03-24T18:19:28Z", "ms": -1539150032046.1528 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-03-24", "window": { "start": { "local": "1921-03-24T06:03:50+08:00", "utc": "1921-03-23T22:03:50Z", "ms": -1539222970222.2163 }, "end": { "local": "1921-03-24T06:03:50+08:00", "utc": "1921-03-23T22:03:50Z", "ms": -1539222970222.2163 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-03-25", "window": { "start": { "local": "1921-03-25T06:02:45+08:00", "utc": "1921-03-24T22:02:45Z", "ms": -1539136634814.6726 }, "end": { "local": "1921-03-25T06:02:45+08:00", "utc": "1921-03-24T22:02:45Z", "ms": -1539136634814.6726 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 04:18 on Thu 24 Mar to 02:19 on Fri 25 Mar.", "fact": "1921-03-23T20:18:25Z → 1921-03-24T18:19:28Z" }, { "step": "kaala", "text": "Sunrise is at 06:04 on the 24th and 06:03 on the 25th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā 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: purvaviddha → only-day · margin 6325 s" }, { "step": "ruling", "text": "Vasantotsava, Fuzhou, 1921: Thursday 24 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": "1921-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Vasantotsava 1921 falls on Thursday 24 March. Pratipadā runs from 04:18 on Thu 24 Mar to 02:19 on Fri 25 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-03-27", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8472, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-03-27T00:08:49+08:00", "utc": "1921-03-26T16:08:49Z", "ms": -1538985071091.058 }, "end": { "local": "1921-03-28T00:06:46+08:00", "utc": "1921-03-27T16:06:46Z", "ms": -1538898794169.907 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-03-27T00:08:49+08:00", "utc": "1921-03-26T16:08:49Z", "ms": -1538985071091.058 }, "end": { "local": "1921-03-28T00:06:46+08:00", "utc": "1921-03-27T16:06:46Z", "ms": -1538898794169.907 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-03-26", "window": { "start": { "local": "1921-03-26T20:48:42+08:00", "utc": "1921-03-26T12:48:42Z", "ms": -1538997077713.43 }, "end": { "local": "1921-03-26T20:48:42+08:00", "utc": "1921-03-26T12:48:42Z", "ms": -1538997077713.43 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-03-27", "window": { "start": { "local": "1921-03-27T21:45:34+08:00", "utc": "1921-03-27T13:45:34Z", "ms": -1538907266402.4475 }, "end": { "local": "1921-03-27T21:45:34+08:00", "utc": "1921-03-27T13:45:34Z", "ms": -1538907266402.4475 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:09 on Sun 27 Mar to 00:07 on Mon 28 Mar.", "fact": "1921-03-26T16:08:49Z → 1921-03-27T16:06:46Z" }, { "step": "kaala", "text": "Moonrise is at 20:49 on the 26th and 21:46 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 8472 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Sunday 27 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": "1921-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Sunday 27 March. Caturthī runs from 00:09 on Sun 27 Mar to 00:07 on Mon 28 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-03-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19155, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1921-03-31T04:06:16+08:00", "utc": "1921-03-30T20:06:16Z", "ms": -1538625224498.677 }, "end": { "local": "1921-04-01T06:23:52+08:00", "utc": "1921-03-31T22:23:52Z", "ms": -1538530568155.369 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-03-31T04:06:16+08:00", "utc": "1921-03-30T20:06:16Z", "ms": -1538625224498.677 }, "end": { "local": "1921-04-01T06:23:52+08:00", "utc": "1921-03-31T22:23:52Z", "ms": -1538530568155.369 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-03-31", "window": { "start": { "local": "1921-03-31T11:43:25+08:00", "utc": "1921-03-31T03:43:25Z", "ms": -1538597795288.3853 }, "end": { "local": "1921-03-31T12:31:25+08:00", "utc": "1921-03-31T04:31:25Z", "ms": -1538594915288.3853 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-04-01", "window": { "start": { "local": "1921-04-01T11:43:07+08:00", "utc": "1921-04-01T03:43:07Z", "ms": -1538511413452.9573 }, "end": { "local": "1921-04-01T12:31:07+08:00", "utc": "1921-04-01T04:31:07Z", "ms": -1538508533452.9573 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:06 on Thu 31 Mar to 06:24 on Fri 1 Apr.", "fact": "1921-03-30T20:06:16Z → 1921-03-31T22:23:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 31st, 11:43–12:31 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 19155 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Fuzhou, 1921: Thursday 31 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": "1921-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-03-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Śītalāṣṭamī 1921 falls on Thursday 31 March. Aṣṭamī runs from 04:06 on Thu 31 Mar to 06:24 on Fri 1 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-04-04", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19226, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-04-03T11:13:33+08:00", "utc": "1921-04-03T03:13:33Z", "ms": -1538340387076.3396 }, "end": { "local": "1921-04-04T13:20:41+08:00", "utc": "1921-04-04T05:20:41Z", "ms": -1538246358503.342 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-03T11:13:33+08:00", "utc": "1921-04-03T03:13:33Z", "ms": -1538340387076.3396 }, "end": { "local": "1921-04-04T13:20:41+08:00", "utc": "1921-04-04T05:20:41Z", "ms": -1538246358503.342 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-04-03", "window": { "start": { "local": "1921-04-03T05:53:07+08:00", "utc": "1921-04-02T21:53:07Z", "ms": -1538359612860.7603 }, "end": { "local": "1921-04-03T05:53:07+08:00", "utc": "1921-04-02T21:53:07Z", "ms": -1538359612860.7603 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-04-04", "window": { "start": { "local": "1921-04-04T05:52:04+08:00", "utc": "1921-04-03T21:52:04Z", "ms": -1538273276212.8257 }, "end": { "local": "1921-04-04T05:52:04+08:00", "utc": "1921-04-03T21:52:04Z", "ms": -1538273276212.8257 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:14 on Sun 3 Apr to 13:21 on Mon 4 Apr.", "fact": "1921-04-03T03:13:33Z → 1921-04-04T05:20:41Z" }, { "step": "kaala", "text": "Sunrise is at 05:53 on the 3rd and 05:52 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 3rd and is on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19226 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Fuzhou, 1921: Monday 4 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": "1921-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Pāpamocanī Ekādaśī 1921 falls on Monday 4 April. Ekādaśī runs from 11:14 on Sun 3 Apr to 13:21 on Mon 4 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-04-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-04-05", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7521, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-04-05T15:03:19+08:00", "utc": "1921-04-05T07:03:19Z", "ms": -1538153801437.5925 }, "end": { "local": "1921-04-06T16:15:57+08:00", "utc": "1921-04-06T08:15:57Z", "ms": -1538063043171.9878 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-05T15:03:19+08:00", "utc": "1921-04-05T07:03:19Z", "ms": -1538153801437.5925 }, "end": { "local": "1921-04-06T16:15:57+08:00", "utc": "1921-04-06T08:15:57Z", "ms": -1538063043171.9878 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-04-05", "window": { "start": { "local": "1921-04-05T18:20:50+08:00", "utc": "1921-04-05T10:20:50Z", "ms": -1538141950353.9307 }, "end": { "local": "1921-04-05T19:52:43+08:00", "utc": "1921-04-05T11:52:43Z", "ms": -1538136437250.625 } }, "covered_min": 92, "window_min": 92, "qualifies": true }, { "local_date": "1921-04-06", "window": { "start": { "local": "1921-04-06T18:21:18+08:00", "utc": "1921-04-06T10:21:18Z", "ms": -1538055522436.08 }, "end": { "local": "1921-04-06T19:52:59+08:00", "utc": "1921-04-06T11:52:59Z", "ms": -1538050021383.913 } }, "covered_min": 0, "window_min": 92, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:03 on Tue 5 Apr to 16:16 on Wed 6 Apr.", "fact": "1921-04-05T07:03:19Z → 1921-04-06T08:15:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:21–19:53 on the 5th, 18:21–19:53 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 92 of 92 minutes on the 5th and 0 of 92 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 7521 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Tuesday 5 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": "1921-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Tuesday 5 April. Trayodaśī runs from 15:03 on Tue 5 Apr to 16:16 on Wed 6 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-04-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-04-06", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24269, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-04-06T16:15:57+08:00", "utc": "1921-04-06T08:15:57Z", "ms": -1538063043171.9878 }, "end": { "local": "1921-04-07T16:56:20+08:00", "utc": "1921-04-07T08:56:20Z", "ms": -1537974219704.9226 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-06T16:15:57+08:00", "utc": "1921-04-06T08:15:57Z", "ms": -1538063043171.9878 }, "end": { "local": "1921-04-07T16:56:20+08:00", "utc": "1921-04-07T08:56:20Z", "ms": -1537974219704.9226 } }, "kaala": "nishita", "days": [ { "local_date": "1921-04-06", "window": { "start": { "local": "1921-04-06T23:41:07+08:00", "utc": "1921-04-06T15:41:07Z", "ms": -1538036333490.454 }, "end": { "local": "1921-04-07T00:29:07+08:00", "utc": "1921-04-06T16:29:07Z", "ms": -1538033453490.454 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-04-07", "window": { "start": { "local": "1921-04-07T23:40:49+08:00", "utc": "1921-04-07T15:40:49Z", "ms": -1537949950556.731 }, "end": { "local": "1921-04-08T00:28:49+08:00", "utc": "1921-04-07T16:28:49Z", "ms": -1537947070556.731 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:16 on Wed 6 Apr to 16:56 on Thu 7 Apr.", "fact": "1921-04-06T08:15:57Z → 1921-04-07T08:56:20Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:41–00:29 on the 6th, 23:41–00:29 on the 7th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24269 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Wednesday 6 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": "1921-04-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Wednesday 6 April. Caturdaśī runs from 16:16 on Wed 6 Apr to 16:56 on Thu 7 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-04-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15274, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1921-04-08T17:04:47+08:00", "utc": "1921-04-08T09:04:47Z", "ms": -1537887313328.771 }, "end": { "local": "1921-04-09T16:43:20+08:00", "utc": "1921-04-09T08:43:20Z", "ms": -1537802199530.571 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-08T17:04:47+08:00", "utc": "1921-04-08T09:04:47Z", "ms": -1537887313328.771 }, "end": { "local": "1921-04-09T16:43:20+08:00", "utc": "1921-04-09T08:43:20Z", "ms": -1537802199530.571 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-04-08", "window": { "start": { "local": "1921-04-08T11:41:03+08:00", "utc": "1921-04-08T03:41:03Z", "ms": -1537906736522.329 }, "end": { "local": "1921-04-08T12:29:03+08:00", "utc": "1921-04-08T04:29:03Z", "ms": -1537903856522.329 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-04-09", "window": { "start": { "local": "1921-04-09T11:40:47+08:00", "utc": "1921-04-09T03:40:47Z", "ms": -1537820353324.313 }, "end": { "local": "1921-04-09T12:28:47+08:00", "utc": "1921-04-09T04:28:47Z", "ms": -1537817473324.313 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 17:05 on Fri 8 Apr to 16:43 on Sat 9 Apr.", "fact": "1921-04-08T09:04:47Z → 1921-04-09T08:43:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 8th, 11:41–12:29 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15274 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Fuzhou, 1921: Saturday 9 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha-caitra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-04-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Navarātrārambha (Caitra) (Chaitra Navratri) 1921 falls on Saturday 9 April. Pratipadā runs from 17:05 on Fri 8 Apr to 16:43 on Sat 9 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8134, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1921-04-10T15:55:09+08:00", "utc": "1921-04-10T07:55:09Z", "ms": -1537718690939.2375 }, "end": { "local": "1921-04-11T14:43:48+08:00", "utc": "1921-04-11T06:43:48Z", "ms": -1537636571971.8457 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-10T15:55:09+08:00", "utc": "1921-04-10T07:55:09Z", "ms": -1537718690939.2375 }, "end": { "local": "1921-04-11T14:43:48+08:00", "utc": "1921-04-11T06:43:48Z", "ms": -1537636571971.8457 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-04-10", "window": { "start": { "local": "1921-04-10T11:40:30+08:00", "utc": "1921-04-10T03:40:30Z", "ms": -1537733969887.8203 }, "end": { "local": "1921-04-10T12:28:30+08:00", "utc": "1921-04-10T04:28:30Z", "ms": -1537731089887.8203 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-04-11", "window": { "start": { "local": "1921-04-11T11:40:14+08:00", "utc": "1921-04-11T03:40:14Z", "ms": -1537647586199.7803 }, "end": { "local": "1921-04-11T12:28:14+08:00", "utc": "1921-04-11T04:28:14Z", "ms": -1537644706199.7803 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 15:55 on Sun 10 Apr to 14:44 on Mon 11 Apr.", "fact": "1921-04-10T07:55:09Z → 1921-04-11T06:43:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 10th, 11:40–12:28 on the 11th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8134 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Fuzhou, 1921: Monday 11 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gauri-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-04-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaurī Tṛtīyā (Gangaur) 1921 falls on Monday 11 April. Tṛtīyā runs from 15:55 on Sun 10 Apr to 14:44 on Mon 11 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8134, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1921-04-10T15:55:09+08:00", "utc": "1921-04-10T07:55:09Z", "ms": -1537718690939.2375 }, "end": { "local": "1921-04-11T14:43:48+08:00", "utc": "1921-04-11T06:43:48Z", "ms": -1537636571971.8457 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-10T15:55:09+08:00", "utc": "1921-04-10T07:55:09Z", "ms": -1537718690939.2375 }, "end": { "local": "1921-04-11T14:43:48+08:00", "utc": "1921-04-11T06:43:48Z", "ms": -1537636571971.8457 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-04-10", "window": { "start": { "local": "1921-04-10T11:40:30+08:00", "utc": "1921-04-10T03:40:30Z", "ms": -1537733969887.8203 }, "end": { "local": "1921-04-10T12:28:30+08:00", "utc": "1921-04-10T04:28:30Z", "ms": -1537731089887.8203 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-04-11", "window": { "start": { "local": "1921-04-11T11:40:14+08:00", "utc": "1921-04-11T03:40:14Z", "ms": -1537647586199.7803 }, "end": { "local": "1921-04-11T12:28:14+08:00", "utc": "1921-04-11T04:28:14Z", "ms": -1537644706199.7803 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 15:55 on Sun 10 Apr to 14:44 on Mon 11 Apr.", "fact": "1921-04-10T07:55:09Z → 1921-04-11T06:43:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 10th, 11:40–12:28 on the 11th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8134 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Fuzhou, 1921: Monday 11 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "saubhagya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-04-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Saubhāgya Śayana Vrata 1921 falls on Monday 11 April. Tṛtīyā runs from 15:55 on Sun 10 Apr to 14:44 on Mon 11 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-04-12", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2700, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-04-11T14:43:48+08:00", "utc": "1921-04-11T06:43:48Z", "ms": -1537636571971.8457 }, "end": { "local": "1921-04-12T13:12:58+08:00", "utc": "1921-04-12T05:12:58Z", "ms": -1537555622240.2263 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-11T14:43:48+08:00", "utc": "1921-04-11T06:43:48Z", "ms": -1537636571971.8457 }, "end": { "local": "1921-04-12T13:12:58+08:00", "utc": "1921-04-12T05:12:58Z", "ms": -1537555622240.2263 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-04-11", "window": { "start": { "local": "1921-04-11T11:40:14+08:00", "utc": "1921-04-11T03:40:14Z", "ms": -1537647586199.7803 }, "end": { "local": "1921-04-11T12:28:14+08:00", "utc": "1921-04-11T04:28:14Z", "ms": -1537644706199.7803 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-04-12", "window": { "start": { "local": "1921-04-12T11:39:58+08:00", "utc": "1921-04-12T03:39:58Z", "ms": -1537561202247.3235 }, "end": { "local": "1921-04-12T12:27:58+08:00", "utc": "1921-04-12T04:27:58Z", "ms": -1537558322247.3235 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:44 on Mon 11 Apr to 13:13 on Tue 12 Apr.", "fact": "1921-04-11T06:43:48Z → 1921-04-12T05:12:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 11th, 11:40–12:28 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2700 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 1921: Tuesday 12 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": "1921-04-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 1921 falls on Tuesday 12 April. Caturthī runs from 14:44 on Mon 11 Apr to 13:13 on Tue 12 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-04-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28984, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1921-04-13T13:45:53+08:00", "utc": "1921-04-13T05:45:53Z", "ms": -1537467247295.6646 }, "end": { "local": "1921-05-14T10:47:59+08:00", "utc": "1921-05-14T02:47:59Z", "ms": -1534799521341.5637 } }, "span": { "of": "transit", "start": { "local": "1921-04-13T13:45:53+08:00", "utc": "1921-04-13T05:45:53Z", "ms": -1537467247295.6646 }, "end": { "local": "1921-04-13T13:45:53+08:00", "utc": "1921-04-13T05:45:53Z", "ms": -1537467247295.6646 } }, "kaala": "day", "days": [ { "local_date": "1921-04-12", "window": { "start": { "local": "1921-04-12T05:43:49+08:00", "utc": "1921-04-11T21:43:49Z", "ms": -1537582571278.6465 }, "end": { "local": "1921-04-13T05:42:49+08:00", "utc": "1921-04-12T21:42:49Z", "ms": -1537496231350.9177 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "1921-04-13", "window": { "start": { "local": "1921-04-13T05:42:49+08:00", "utc": "1921-04-12T21:42:49Z", "ms": -1537496231350.9177 }, "end": { "local": "1921-04-14T05:41:49+08:00", "utc": "1921-04-13T21:41:49Z", "ms": -1537409890946.1223 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 13:46 on Wed 13 Apr.", "fact": "1921-04-13T05:45:53Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:44 on the 12th, and from 05:43 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 13th, not the 12th.", "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 28984 s" }, { "step": "ruling", "text": "Vaiśākhī, Fuzhou, 1921: Wednesday 13 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1921-04-13", "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": "1921-04-13", "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 Fuzhou, Vaiśākhī 1921 falls on Wednesday 13 April. The Sun enters Meṣa at 13:46 on Wed 13 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 811, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1921-04-12T13:12:58+08:00", "utc": "1921-04-12T05:12:58Z", "ms": -1537555622240.2263 }, "end": { "local": "1921-04-13T11:26:11+08:00", "utc": "1921-04-13T03:26:11Z", "ms": -1537475629262.809 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-12T13:12:58+08:00", "utc": "1921-04-12T05:12:58Z", "ms": -1537555622240.2263 }, "end": { "local": "1921-04-13T11:26:11+08:00", "utc": "1921-04-13T03:26:11Z", "ms": -1537475629262.809 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-04-12", "window": { "start": { "local": "1921-04-12T11:39:58+08:00", "utc": "1921-04-12T03:39:58Z", "ms": -1537561202247.3235 }, "end": { "local": "1921-04-12T12:27:58+08:00", "utc": "1921-04-12T04:27:58Z", "ms": -1537558322247.3235 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-04-13", "window": { "start": { "local": "1921-04-13T11:39:42+08:00", "utc": "1921-04-13T03:39:42Z", "ms": -1537474818017.51 }, "end": { "local": "1921-04-13T12:27:42+08:00", "utc": "1921-04-13T04:27:42Z", "ms": -1537471938017.51 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 13:13 on Tue 12 Apr to 11:26 on Wed 13 Apr.", "fact": "1921-04-12T05:12:58Z → 1921-04-13T03:26:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 12th, 11:40–12:28 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 0 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 811 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Fuzhou, 1921: Wednesday 13 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "lakshmi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Lakṣmī Pañcamī 1921 falls on Wednesday 13 April. Pañcamī runs from 13:13 on Tue 12 Apr to 11:26 on Wed 13 Apr, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15670, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1921-04-15T07:18:01+08:00", "utc": "1921-04-14T23:18:01Z", "ms": -1537317718631.4976 }, "end": { "local": "1921-04-16T05:03:03+08:00", "utc": "1921-04-15T21:03:03Z", "ms": -1537239417283.5535 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-15T07:18:01+08:00", "utc": "1921-04-14T23:18:01Z", "ms": -1537317718631.4976 }, "end": { "local": "1921-04-16T05:03:03+08:00", "utc": "1921-04-15T21:03:03Z", "ms": -1537239417283.5535 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-04-15", "window": { "start": { "local": "1921-04-15T11:39:11+08:00", "utc": "1921-04-15T03:39:11Z", "ms": -1537302048672.104 }, "end": { "local": "1921-04-15T12:27:11+08:00", "utc": "1921-04-15T04:27:11Z", "ms": -1537299168672.104 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-04-16", "window": { "start": { "local": "1921-04-16T11:38:56+08:00", "utc": "1921-04-16T03:38:56Z", "ms": -1537215663528.038 }, "end": { "local": "1921-04-16T12:26:56+08:00", "utc": "1921-04-16T04:26:56Z", "ms": -1537212783528.038 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 07:18 on Fri 15 Apr to 05:03 on Sat 16 Apr.", "fact": "1921-04-14T23:18:01Z → 1921-04-15T21:03:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 15th, 11:39–12:27 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 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 15670 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Fuzhou, 1921: Friday 15 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhavani-utpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Annapurna puja (Beng.) (paraviddha), Bhavani-utpatti (paraviddha), Asokastami (Special when combined with naks. Punarvasu and Wednesday, after mid-day)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-04-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Bhavānī Utpatti 1921 falls on Friday 15 April. Aṣṭamī runs from 07:18 on Fri 15 Apr to 05:03 on Sat 16 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23754, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1921-04-16T05:03:03+08:00", "utc": "1921-04-15T21:03:03Z", "ms": -1537239417283.5535 }, "end": { "local": "1921-04-17T02:45:12+08:00", "utc": "1921-04-16T18:45:12Z", "ms": -1537161288342.3965 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-16T05:03:03+08:00", "utc": "1921-04-15T21:03:03Z", "ms": -1537239417283.5535 }, "end": { "local": "1921-04-17T02:45:12+08:00", "utc": "1921-04-16T18:45:12Z", "ms": -1537161288342.3965 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-04-16", "window": { "start": { "local": "1921-04-16T11:38:56+08:00", "utc": "1921-04-16T03:38:56Z", "ms": -1537215663528.038 }, "end": { "local": "1921-04-16T12:26:56+08:00", "utc": "1921-04-16T04:26:56Z", "ms": -1537212783528.038 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-04-17", "window": { "start": { "local": "1921-04-17T11:38:42+08:00", "utc": "1921-04-17T03:38:42Z", "ms": -1537129278049.412 }, "end": { "local": "1921-04-17T12:26:42+08:00", "utc": "1921-04-17T04:26:42Z", "ms": -1537126398049.412 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 05:03 on Sat 16 Apr to 02:45 on Sun 17 Apr.", "fact": "1921-04-15T21:03:03Z → 1921-04-16T18:45:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 16th, 11:39–12:27 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23754 s" }, { "step": "ruling", "text": "Rāma Navamī, Fuzhou, 1921: Saturday 16 April.", "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": "1921-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Rāma Navamī 1921 falls on Saturday 16 April. Navamī runs from 05:03 on Sat 16 Apr to 02:45 on Sun 17 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-04-18", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18590, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-04-18T00:28:05+08:00", "utc": "1921-04-17T16:28:05Z", "ms": -1537083114512.1477 }, "end": { "local": "1921-04-18T22:15:46+08:00", "utc": "1921-04-18T14:15:46Z", "ms": -1537004654289.3667 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-18T00:28:05+08:00", "utc": "1921-04-17T16:28:05Z", "ms": -1537083114512.1477 }, "end": { "local": "1921-04-18T22:15:46+08:00", "utc": "1921-04-18T14:15:46Z", "ms": -1537004654289.3667 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-04-18", "window": { "start": { "local": "1921-04-18T05:37:56+08:00", "utc": "1921-04-17T21:37:56Z", "ms": -1537064524076.24 }, "end": { "local": "1921-04-18T05:37:56+08:00", "utc": "1921-04-17T21:37:56Z", "ms": -1537064524076.24 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-04-19", "window": { "start": { "local": "1921-04-19T05:36:59+08:00", "utc": "1921-04-18T21:36:59Z", "ms": -1536978180919.1018 }, "end": { "local": "1921-04-19T05:36:59+08:00", "utc": "1921-04-18T21:36:59Z", "ms": -1536978180919.1018 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:28 on Mon 18 Apr to 22:16 on Mon 18 Apr.", "fact": "1921-04-17T16:28:05Z → 1921-04-18T14:15:46Z" }, { "step": "kaala", "text": "Sunrise is at 05:38 on the 18th and 05:37 on the 19th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 18th and is not on the 19th.", "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 18590 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Fuzhou, 1921: Monday 18 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": "1921-04-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Kāmadā Ekādaśī 1921 falls on Monday 18 April. Ekādaśī runs from 00:28 on Mon 18 Apr to 22:16 on Mon 18 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-04-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-04-19", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-19", "confidence": "boundary", "boundary_reasons": [ "margin", "absent-unstated" ], "boundary_margin_s": 254, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-04-19T20:12:41+08:00", "utc": "1921-04-19T12:12:41Z", "ms": -1536925639131.3064 }, "end": { "local": "1921-04-20T18:23:44+08:00", "utc": "1921-04-20T10:23:44Z", "ms": -1536845775628.2227 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-19T20:12:41+08:00", "utc": "1921-04-19T12:12:41Z", "ms": -1536925639131.3064 }, "end": { "local": "1921-04-20T18:23:44+08:00", "utc": "1921-04-20T10:23:44Z", "ms": -1536845775628.2227 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-04-19", "window": { "start": { "local": "1921-04-19T18:27:29+08:00", "utc": "1921-04-19T10:27:29Z", "ms": -1536931951126.2542 }, "end": { "local": "1921-04-19T19:56:37+08:00", "utc": "1921-04-19T11:56:37Z", "ms": -1536926602593.8042 } }, "covered_min": 0, "window_min": 89, "qualifies": false }, { "local_date": "1921-04-20", "window": { "start": { "local": "1921-04-20T18:27:58+08:00", "utc": "1921-04-20T10:27:58Z", "ms": -1536845521747.3796 }, "end": { "local": "1921-04-20T19:56:55+08:00", "utc": "1921-04-20T11:56:55Z", "ms": -1536840184539.7527 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:13 on Tue 19 Apr to 18:24 on Wed 20 Apr.", "fact": "1921-04-19T12:12:41Z → 1921-04-20T10:23:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:27–19:57 on the 19th, 18:28–19:57 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 89 minutes on the 19th and 0 of 89 on the 20th.", "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 254 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Tuesday 19 April.", "fact": "confidence: boundary (margin, 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": "1921-04-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-19", "confidence": "boundary" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Tuesday 19 April. Trayodaśī runs from 20:13 on Tue 19 Apr to 18:24 on Wed 20 Apr, and reaches pradoṣa on neither day. It is 4 min 14 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-04-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21464, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-04-19T20:12:41+08:00", "utc": "1921-04-19T12:12:41Z", "ms": -1536925639131.3064 }, "end": { "local": "1921-04-20T18:23:44+08:00", "utc": "1921-04-20T10:23:44Z", "ms": -1536845775628.2227 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-19T20:12:41+08:00", "utc": "1921-04-19T12:12:41Z", "ms": -1536925639131.3064 }, "end": { "local": "1921-04-20T18:23:44+08:00", "utc": "1921-04-20T10:23:44Z", "ms": -1536845775628.2227 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-04-19", "window": { "start": { "local": "1921-04-19T11:38:14+08:00", "utc": "1921-04-19T03:38:14Z", "ms": -1536956506022.678 }, "end": { "local": "1921-04-19T12:26:14+08:00", "utc": "1921-04-19T04:26:14Z", "ms": -1536953626022.678 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-04-20", "window": { "start": { "local": "1921-04-20T11:38:01+08:00", "utc": "1921-04-20T03:38:01Z", "ms": -1536870119440.13 }, "end": { "local": "1921-04-20T12:26:01+08:00", "utc": "1921-04-20T04:26:01Z", "ms": -1536867239440.13 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:13 on Tue 19 Apr to 18:24 on Wed 20 Apr.", "fact": "1921-04-19T12:12:41Z → 1921-04-20T10:23:44Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 19th, 11:38–12:26 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21464 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Fuzhou, 1921: Wednesday 20 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ananga-trayodashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 13 Ananga trayodasi (purvaviddha), Mahavira jayanti (Jain)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-04-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Anaṅga Trayodaśī 1921 falls on Wednesday 20 April. Trayodaśī runs from 20:13 on Tue 19 Apr to 18:24 on Wed 20 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16099, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-04-20T18:23:44+08:00", "utc": "1921-04-20T10:23:44Z", "ms": -1536845775628.2227 }, "end": { "local": "1921-04-21T16:54:06+08:00", "utc": "1921-04-21T08:54:06Z", "ms": -1536764753684.191 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-20T18:23:44+08:00", "utc": "1921-04-20T10:23:44Z", "ms": -1536845775628.2227 }, "end": { "local": "1921-04-21T16:54:06+08:00", "utc": "1921-04-21T08:54:06Z", "ms": -1536764753684.191 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-04-20", "window": { "start": { "local": "1921-04-20T11:38:01+08:00", "utc": "1921-04-20T03:38:01Z", "ms": -1536870119440.13 }, "end": { "local": "1921-04-20T12:26:01+08:00", "utc": "1921-04-20T04:26:01Z", "ms": -1536867239440.13 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-04-21", "window": { "start": { "local": "1921-04-21T11:37:48+08:00", "utc": "1921-04-21T03:37:48Z", "ms": -1536783732454.66 }, "end": { "local": "1921-04-21T12:25:48+08:00", "utc": "1921-04-21T04:25:48Z", "ms": -1536780852454.66 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:24 on Wed 20 Apr to 16:54 on Thu 21 Apr.", "fact": "1921-04-20T10:23:44Z → 1921-04-21T08:54:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 20th, 11:38–12:26 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16099 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Fuzhou, 1921: Thursday 21 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vishnu-damanaka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Madanabhanji, (Bengal & Orissa) (paraviddha), Sivadamanaka caturdasi, Visnudamanaka caturdasi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-04-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Viṣṇudamanaka Caturdaśī 1921 falls on Thursday 21 April. Caturdaśī runs from 18:24 on Wed 20 Apr to 16:54 on Thu 21 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12203, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-04-21T16:54:06+08:00", "utc": "1921-04-21T08:54:06Z", "ms": -1536764753684.191 }, "end": { "local": "1921-04-22T15:48:58+08:00", "utc": "1921-04-22T07:48:58Z", "ms": -1536682261844.2356 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1921-04-21T16:54:06+08:00", "utc": "1921-04-21T08:54:06Z", "ms": -1536764753684.191 }, "end": { "local": "1921-04-22T15:48:58+08:00", "utc": "1921-04-22T07:48:58Z", "ms": -1536682261844.2356 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-04-21", "window": { "start": { "local": "1921-04-21T11:37:48+08:00", "utc": "1921-04-21T03:37:48Z", "ms": -1536783732454.66 }, "end": { "local": "1921-04-21T12:25:48+08:00", "utc": "1921-04-21T04:25:48Z", "ms": -1536780852454.66 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-04-22", "window": { "start": { "local": "1921-04-22T11:37:35+08:00", "utc": "1921-04-22T03:37:35Z", "ms": -1536697345048.7766 }, "end": { "local": "1921-04-22T12:25:35+08:00", "utc": "1921-04-22T04:25:35Z", "ms": -1536694465048.7766 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:54 on Thu 21 Apr to 15:49 on Fri 22 Apr.", "fact": "1921-04-21T08:54:06Z → 1921-04-22T07:48:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 21st, 11:38–12:26 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 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 12203 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Fuzhou, 1921: Friday 22 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": "1921-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Caitrī Pūrṇimā 1921 falls on Friday 22 April. Pūrṇimā runs from 16:54 on Thu 21 Apr to 15:49 on Fri 22 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-04-25", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-04-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19196, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-04-25T15:43:22+08:00", "utc": "1921-04-25T07:43:22Z", "ms": -1536423397636.6968 }, "end": { "local": "1921-04-26T16:51:30+08:00", "utc": "1921-04-26T08:51:30Z", "ms": -1536332910192.3267 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-04-25T15:43:22+08:00", "utc": "1921-04-25T07:43:22Z", "ms": -1536423397636.6968 }, "end": { "local": "1921-04-26T16:51:30+08:00", "utc": "1921-04-26T08:51:30Z", "ms": -1536332910192.3267 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-04-25", "window": { "start": { "local": "1921-04-25T21:21:00+08:00", "utc": "1921-04-25T13:21:00Z", "ms": -1536403140131.832 }, "end": { "local": "1921-04-25T21:21:00+08:00", "utc": "1921-04-25T13:21:00Z", "ms": -1536403140131.832 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-04-26", "window": { "start": { "local": "1921-04-26T22:11:26+08:00", "utc": "1921-04-26T14:11:26Z", "ms": -1536313713779.6133 }, "end": { "local": "1921-04-26T22:11:26+08:00", "utc": "1921-04-26T14:11:26Z", "ms": -1536313713779.6133 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:43 on Mon 25 Apr to 16:51 on Tue 26 Apr.", "fact": "1921-04-25T07:43:22Z → 1921-04-26T08:51:30Z" }, { "step": "kaala", "text": "Moonrise is at 21:21 on the 25th and 22:11 on the 26th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 25th and is not on the 26th.", "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 19196 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Monday 25 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": "1921-04-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-04-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Monday 25 April. Caturthī runs from 15:43 on Mon 25 Apr to 16:51 on Tue 26 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-04-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ekadashi?on=1921-05-04", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 461, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-05-03T05:17:21+08:00", "utc": "1921-05-02T21:17:21Z", "ms": -1535769759386.8914 }, "end": { "local": "1921-05-04T06:32:02+08:00", "utc": "1921-05-03T22:32:02Z", "ms": -1535678877612.7073 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-03T05:17:21+08:00", "utc": "1921-05-02T21:17:21Z", "ms": -1535769759386.8914 }, "end": { "local": "1921-05-04T06:32:02+08:00", "utc": "1921-05-03T22:32:02Z", "ms": -1535678877612.7073 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-05-03", "window": { "start": { "local": "1921-05-03T05:25:01+08:00", "utc": "1921-05-02T21:25:01Z", "ms": -1535769298544.9226 }, "end": { "local": "1921-05-03T05:25:01+08:00", "utc": "1921-05-02T21:25:01Z", "ms": -1535769298544.9226 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-05-04", "window": { "start": { "local": "1921-05-04T05:24:17+08:00", "utc": "1921-05-03T21:24:17Z", "ms": -1535682943231.603 }, "end": { "local": "1921-05-04T05:24:17+08:00", "utc": "1921-05-03T21:24:17Z", "ms": -1535682943231.603 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:17 on Tue 3 May to 06:32 on Wed 4 May.", "fact": "1921-05-02T21:17:21Z → 1921-05-03T22:32:02Z" }, { "step": "kaala", "text": "Sunrise is at 05:25 on the 3rd and 05:24 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 3rd and is on the 4th.", "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 461 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Fuzhou, 1921: Wednesday 4 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": "1921-05-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Varūthinī Ekādaśī 1921 falls on Wednesday 4 May. Ekādaśī runs from 05:17 on Tue 3 May to 06:32 on Wed 4 May and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-05-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-05-05", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39699, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-05-05T07:08:06+08:00", "utc": "1921-05-04T23:08:06Z", "ms": -1535590313530.6177 }, "end": { "local": "1921-05-06T07:03:36+08:00", "utc": "1921-05-05T23:03:36Z", "ms": -1535504184389.2832 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-05T07:08:06+08:00", "utc": "1921-05-04T23:08:06Z", "ms": -1535590313530.6177 }, "end": { "local": "1921-05-06T07:03:36+08:00", "utc": "1921-05-05T23:03:36Z", "ms": -1535504184389.2832 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-05-04", "window": { "start": { "local": "1921-05-04T18:35:07+08:00", "utc": "1921-05-04T10:35:07Z", "ms": -1535635493072.4106 }, "end": { "local": "1921-05-04T20:01:34+08:00", "utc": "1921-05-04T12:01:34Z", "ms": -1535630305586.3823 } }, "covered_min": 0, "window_min": 86, "qualifies": false }, { "local_date": "1921-05-05", "window": { "start": { "local": "1921-05-05T18:35:39+08:00", "utc": "1921-05-05T10:35:39Z", "ms": -1535549061258.6897 }, "end": { "local": "1921-05-05T20:01:56+08:00", "utc": "1921-05-05T12:01:56Z", "ms": -1535543883706.106 } }, "covered_min": 86, "window_min": 86, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:08 on Thu 5 May to 07:04 on Fri 6 May.", "fact": "1921-05-04T23:08:06Z → 1921-05-05T23:03:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:35–20:02 on the 4th, 18:36–20:02 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 86 minutes on the 4th and 86 of 86 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 39699 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Thursday 5 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": "1921-05-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Thursday 5 May. Trayodaśī runs from 07:08 on Thu 5 May to 07:04 on Fri 6 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-05-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-05-06", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21405, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-05-06T07:03:36+08:00", "utc": "1921-05-05T23:03:36Z", "ms": -1535504184389.2832 }, "end": { "local": "1921-05-07T06:19:54+08:00", "utc": "1921-05-06T22:19:54Z", "ms": -1535420405650.5952 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-06T07:03:36+08:00", "utc": "1921-05-05T23:03:36Z", "ms": -1535504184389.2832 }, "end": { "local": "1921-05-07T06:19:54+08:00", "utc": "1921-05-06T22:19:54Z", "ms": -1535420405650.5952 } }, "kaala": "nishita", "days": [ { "local_date": "1921-05-05", "window": { "start": { "local": "1921-05-05T23:35:15+08:00", "utc": "1921-05-05T15:35:15Z", "ms": -1535531085436.501 }, "end": { "local": "1921-05-06T00:23:15+08:00", "utc": "1921-05-05T16:23:15Z", "ms": -1535528205436.501 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-05-06", "window": { "start": { "local": "1921-05-06T23:35:10+08:00", "utc": "1921-05-06T15:35:10Z", "ms": -1535444690300.6777 }, "end": { "local": "1921-05-07T00:23:10+08:00", "utc": "1921-05-06T16:23:10Z", "ms": -1535441810300.6777 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:04 on Fri 6 May to 06:20 on Sat 7 May.", "fact": "1921-05-05T23:03:36Z → 1921-05-06T22:19:54Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 on the 5th, 23:35–00:23 on the 6th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21405 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Friday 6 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": "1921-05-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Friday 6 May. Caturdaśī runs from 07:04 on Fri 6 May to 06:20 on Sat 7 May and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-05-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15489, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1921-05-10T01:02:01+08:00", "utc": "1921-05-09T17:02:01Z", "ms": -1535180279017.773 }, "end": { "local": "1921-05-10T22:35:51+08:00", "utc": "1921-05-10T14:35:51Z", "ms": -1535102649494.8503 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-10T01:02:01+08:00", "utc": "1921-05-09T17:02:01Z", "ms": -1535180279017.773 }, "end": { "local": "1921-05-10T22:35:51+08:00", "utc": "1921-05-10T14:35:51Z", "ms": -1535102649494.8503 } }, "kaala": "purvahna", "days": [ { "local_date": "1921-05-10", "window": { "start": { "local": "1921-05-10T05:20:10+08:00", "utc": "1921-05-09T21:20:10Z", "ms": -1535164789973.7605 }, "end": { "local": "1921-05-10T09:46:13+08:00", "utc": "1921-05-10T01:46:13Z", "ms": -1535148826877.4346 } }, "covered_min": 266, "window_min": 266, "qualifies": true }, { "local_date": "1921-05-11", "window": { "start": { "local": "1921-05-11T05:19:33+08:00", "utc": "1921-05-10T21:19:33Z", "ms": -1535078427399.3025 }, "end": { "local": "1921-05-11T09:45:59+08:00", "utc": "1921-05-11T01:45:59Z", "ms": -1535062441061.793 } }, "covered_min": 0, "window_min": 266, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 01:02 on Tue 10 May to 22:36 on Tue 10 May.", "fact": "1921-05-09T17:02:01Z → 1921-05-10T14:35:51Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:20–09:46 on the 10th, 05:20–09:46 on the 11th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 266 of 266 minutes on the 10th and 0 of 266 on the 11th.", "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 15489 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Fuzhou, 1921: Tuesday 10 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.", "kaala": "purvahna", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-05-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-10", "confidence": "determinate" } ], "quote": "In Fuzhou, Akṣaya Tṛtīyā 1921 falls on Tuesday 10 May. Tṛtīyā runs from 01:02 on Tue 10 May to 22:36 on Tue 10 May and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9121, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1921-05-10T01:02:01+08:00", "utc": "1921-05-09T17:02:01Z", "ms": -1535180279017.773 }, "end": { "local": "1921-05-10T22:35:51+08:00", "utc": "1921-05-10T14:35:51Z", "ms": -1535102649494.8503 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-10T01:02:01+08:00", "utc": "1921-05-09T17:02:01Z", "ms": -1535180279017.773 }, "end": { "local": "1921-05-10T22:35:51+08:00", "utc": "1921-05-10T14:35:51Z", "ms": -1535102649494.8503 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-05-09", "window": { "start": { "local": "1921-05-09T18:37:47+08:00", "utc": "1921-05-09T10:37:47Z", "ms": -1535203332946.233 }, "end": { "local": "1921-05-09T20:03:26+08:00", "utc": "1921-05-09T12:03:26Z", "ms": -1535198193883.2366 } }, "covered_min": 0, "window_min": 86, "qualifies": false }, { "local_date": "1921-05-10", "window": { "start": { "local": "1921-05-10T18:38:19+08:00", "utc": "1921-05-10T10:38:19Z", "ms": -1535116900684.7825 }, "end": { "local": "1921-05-10T20:03:49+08:00", "utc": "1921-05-10T12:03:49Z", "ms": -1535111770913.3853 } }, "covered_min": 85, "window_min": 85, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 01:02 on Tue 10 May to 22:36 on Tue 10 May.", "fact": "1921-05-09T17:02:01Z → 1921-05-10T14:35:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:38–20:03 on the 9th, 18:38–20:04 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 0 of 86 minutes on the 9th and 85 of 85 on the 10th.", "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 9121 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Fuzhou, 1921: Tuesday 10 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-05-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-10", "confidence": "determinate" } ], "quote": "In Fuzhou, Paraśurāma Jayantī 1921 falls on Tuesday 10 May. Tṛtīyā runs from 01:02 on Tue 10 May to 22:36 on Tue 10 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-05-11", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27493, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-05-10T22:35:51+08:00", "utc": "1921-05-10T14:35:51Z", "ms": -1535102649494.8503 }, "end": { "local": "1921-05-11T20:01:25+08:00", "utc": "1921-05-11T12:01:25Z", "ms": -1535025515206.3003 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-10T22:35:51+08:00", "utc": "1921-05-10T14:35:51Z", "ms": -1535102649494.8503 }, "end": { "local": "1921-05-11T20:01:25+08:00", "utc": "1921-05-11T12:01:25Z", "ms": -1535025515206.3003 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-05-10", "window": { "start": { "local": "1921-05-10T11:35:15+08:00", "utc": "1921-05-10T03:35:15Z", "ms": -1535142285329.2715 }, "end": { "local": "1921-05-10T12:23:15+08:00", "utc": "1921-05-10T04:23:15Z", "ms": -1535139405329.2715 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-05-11", "window": { "start": { "local": "1921-05-11T11:35:12+08:00", "utc": "1921-05-11T03:35:12Z", "ms": -1535055887893.0383 }, "end": { "local": "1921-05-11T12:23:12+08:00", "utc": "1921-05-11T04:23:12Z", "ms": -1535053007893.0383 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:36 on Tue 10 May to 20:01 on Wed 11 May.", "fact": "1921-05-10T14:35:51Z → 1921-05-11T12:01:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 10th, 11:35–12:23 on the 11th.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27493 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 1921: Wednesday 11 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": "1921-05-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 1921 falls on Wednesday 11 May. Caturthī runs from 22:36 on Tue 10 May to 20:01 on Wed 11 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-05-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18132, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1921-05-11T20:01:25+08:00", "utc": "1921-05-11T12:01:25Z", "ms": -1535025515206.3003 }, "end": { "local": "1921-05-12T17:25:22+08:00", "utc": "1921-05-12T09:25:22Z", "ms": -1534948477840.2703 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-11T20:01:25+08:00", "utc": "1921-05-11T12:01:25Z", "ms": -1535025515206.3003 }, "end": { "local": "1921-05-12T17:25:22+08:00", "utc": "1921-05-12T09:25:22Z", "ms": -1534948477840.2703 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-05-11", "window": { "start": { "local": "1921-05-11T11:35:12+08:00", "utc": "1921-05-11T03:35:12Z", "ms": -1535055887893.0383 }, "end": { "local": "1921-05-11T12:23:12+08:00", "utc": "1921-05-11T04:23:12Z", "ms": -1535053007893.0383 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-05-12", "window": { "start": { "local": "1921-05-12T11:35:10+08:00", "utc": "1921-05-12T03:35:10Z", "ms": -1534969489902.8926 }, "end": { "local": "1921-05-12T12:23:10+08:00", "utc": "1921-05-12T04:23:10Z", "ms": -1534966609902.8926 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 20:01 on Wed 11 May to 17:25 on Thu 12 May.", "fact": "1921-05-11T12:01:25Z → 1921-05-12T09:25:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 11th, 11:35–12:23 on the 12th.", "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 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18132 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Fuzhou, 1921: Thursday 12 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-05-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Śaṅkara Jayantī 1921 falls on Thursday 12 May. Pañcamī runs from 20:01 on Wed 11 May to 17:25 on Thu 12 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 471, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1921-05-13T14:53:35+08:00", "utc": "1921-05-13T06:53:35Z", "ms": -1534871184877.2 }, "end": { "local": "1921-05-14T12:30:59+08:00", "utc": "1921-05-14T04:30:59Z", "ms": -1534793341063.4644 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-13T14:53:35+08:00", "utc": "1921-05-13T06:53:35Z", "ms": -1534871184877.2 }, "end": { "local": "1921-05-14T12:30:59+08:00", "utc": "1921-05-14T04:30:59Z", "ms": -1534793341063.4644 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-05-13", "window": { "start": { "local": "1921-05-13T11:35:09+08:00", "utc": "1921-05-13T03:35:09Z", "ms": -1534883091362.1938 }, "end": { "local": "1921-05-13T12:23:09+08:00", "utc": "1921-05-13T04:23:09Z", "ms": -1534880211362.1938 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-05-14", "window": { "start": { "local": "1921-05-14T11:35:08+08:00", "utc": "1921-05-14T03:35:08Z", "ms": -1534796692273.838 }, "end": { "local": "1921-05-14T12:23:08+08:00", "utc": "1921-05-14T04:23:08Z", "ms": -1534793812273.838 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 14:54 on Fri 13 May to 12:31 on Sat 14 May.", "fact": "1921-05-13T06:53:35Z → 1921-05-14T04:30:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 13th, 11:35–12:23 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 471 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Fuzhou, 1921: Saturday 14 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-05-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaṅgotpatti (Ganga Saptami) 1921 falls on Saturday 14 May. Saptamī runs from 14:54 on Fri 13 May to 12:31 on Sat 14 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-05-18", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1238, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-05-17T06:52:19+08:00", "utc": "1921-05-16T22:52:19Z", "ms": -1534554460794.0718 }, "end": { "local": "1921-05-18T05:36:20+08:00", "utc": "1921-05-17T21:36:20Z", "ms": -1534472620088.8938 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-17T06:52:19+08:00", "utc": "1921-05-16T22:52:19Z", "ms": -1534554460794.0718 }, "end": { "local": "1921-05-18T05:36:20+08:00", "utc": "1921-05-17T21:36:20Z", "ms": -1534472620088.8938 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-05-17", "window": { "start": { "local": "1921-05-17T05:16:11+08:00", "utc": "1921-05-16T21:16:11Z", "ms": -1534560228591.9639 }, "end": { "local": "1921-05-17T05:16:11+08:00", "utc": "1921-05-16T21:16:11Z", "ms": -1534560228591.9639 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-05-18", "window": { "start": { "local": "1921-05-18T05:15:42+08:00", "utc": "1921-05-17T21:15:42Z", "ms": -1534473858104.0046 }, "end": { "local": "1921-05-18T05:15:42+08:00", "utc": "1921-05-17T21:15:42Z", "ms": -1534473858104.0046 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:52 on Tue 17 May to 05:36 on Wed 18 May.", "fact": "1921-05-16T22:52:19Z → 1921-05-17T21:36:20Z" }, { "step": "kaala", "text": "Sunrise is at 05:16 on the 17th and 05:16 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 17th and is on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 1238 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Fuzhou, 1921: Wednesday 18 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": "1921-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Mohinī Ekādaśī 1921 falls on Wednesday 18 May. Ekādaśī runs from 06:52 on Tue 17 May to 05:36 on Wed 18 May and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-05-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21530, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1921-05-18T05:36:20+08:00", "utc": "1921-05-17T21:36:20Z", "ms": -1534472620088.8938 }, "end": { "local": "1921-05-19T04:41:12+08:00", "utc": "1921-05-18T20:41:12Z", "ms": -1534389528248.1697 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-18T05:36:20+08:00", "utc": "1921-05-17T21:36:20Z", "ms": -1534472620088.8938 }, "end": { "local": "1921-05-19T04:41:12+08:00", "utc": "1921-05-18T20:41:12Z", "ms": -1534389528248.1697 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-05-18", "window": { "start": { "local": "1921-05-18T11:35:10+08:00", "utc": "1921-05-18T03:35:10Z", "ms": -1534451090483.5544 }, "end": { "local": "1921-05-18T12:23:10+08:00", "utc": "1921-05-18T04:23:10Z", "ms": -1534448210483.5544 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-05-19", "window": { "start": { "local": "1921-05-19T11:35:11+08:00", "utc": "1921-05-19T03:35:11Z", "ms": -1534364688683.9558 }, "end": { "local": "1921-05-19T12:23:11+08:00", "utc": "1921-05-19T04:23:11Z", "ms": -1534361808683.9558 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 05:36 on Wed 18 May to 04:41 on Thu 19 May.", "fact": "1921-05-17T21:36:20Z → 1921-05-18T20:41:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 18th, 11:35–12:23 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21530 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Fuzhou, 1921: Wednesday 18 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Paraśurāma Dvādaśī 1921 falls on Wednesday 18 May. Dvādaśī runs from 05:36 on Wed 18 May to 04:41 on Thu 19 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21530, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1921-05-18T05:36:20+08:00", "utc": "1921-05-17T21:36:20Z", "ms": -1534472620088.8938 }, "end": { "local": "1921-05-19T04:41:12+08:00", "utc": "1921-05-18T20:41:12Z", "ms": -1534389528248.1697 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-18T05:36:20+08:00", "utc": "1921-05-17T21:36:20Z", "ms": -1534472620088.8938 }, "end": { "local": "1921-05-19T04:41:12+08:00", "utc": "1921-05-18T20:41:12Z", "ms": -1534389528248.1697 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-05-18", "window": { "start": { "local": "1921-05-18T11:35:10+08:00", "utc": "1921-05-18T03:35:10Z", "ms": -1534451090483.5544 }, "end": { "local": "1921-05-18T12:23:10+08:00", "utc": "1921-05-18T04:23:10Z", "ms": -1534448210483.5544 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-05-19", "window": { "start": { "local": "1921-05-19T11:35:11+08:00", "utc": "1921-05-19T03:35:11Z", "ms": -1534364688683.9558 }, "end": { "local": "1921-05-19T12:23:11+08:00", "utc": "1921-05-19T04:23:11Z", "ms": -1534361808683.9558 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 05:36 on Wed 18 May to 04:41 on Thu 19 May.", "fact": "1921-05-17T21:36:20Z → 1921-05-18T20:41:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 18th, 11:35–12:23 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 21530 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Fuzhou, 1921: Wednesday 18 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rukmini-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Rukmiṇī Dvādaśī 1921 falls on Wednesday 18 May. Dvādaśī runs from 05:36 on Wed 18 May to 04:41 on Thu 19 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-05-19", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28853, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-05-19T04:41:12+08:00", "utc": "1921-05-18T20:41:12Z", "ms": -1534389528248.1697 }, "end": { "local": "1921-05-20T04:08:15+08:00", "utc": "1921-05-19T20:08:15Z", "ms": -1534305105285.3455 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-19T04:41:12+08:00", "utc": "1921-05-18T20:41:12Z", "ms": -1534389528248.1697 }, "end": { "local": "1921-05-20T04:08:15+08:00", "utc": "1921-05-19T20:08:15Z", "ms": -1534305105285.3455 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-05-18", "window": { "start": { "local": "1921-05-18T18:42:37+08:00", "utc": "1921-05-18T10:42:37Z", "ms": -1534425442863.1042 }, "end": { "local": "1921-05-18T20:06:58+08:00", "utc": "1921-05-18T12:06:58Z", "ms": -1534420382005.3723 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "1921-05-19", "window": { "start": { "local": "1921-05-19T18:43:09+08:00", "utc": "1921-05-19T10:43:09Z", "ms": -1534339010937.797 }, "end": { "local": "1921-05-19T20:07:22+08:00", "utc": "1921-05-19T12:07:22Z", "ms": -1534333957953.6375 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:41 on Thu 19 May to 04:08 on Fri 20 May.", "fact": "1921-05-18T20:41:12Z → 1921-05-19T20:08:15Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:07 on the 18th, 18:43–20:07 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 84 minutes on the 18th and 84 of 84 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28853 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Thursday 19 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": "1921-05-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Thursday 19 May. Trayodaśī runs from 04:41 on Thu 19 May to 04:08 on Fri 20 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-05-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28273, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-05-20T04:08:15+08:00", "utc": "1921-05-19T20:08:15Z", "ms": -1534305105285.3455 }, "end": { "local": "1921-05-21T03:58:59+08:00", "utc": "1921-05-20T19:58:59Z", "ms": -1534219260625.0276 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-20T04:08:15+08:00", "utc": "1921-05-19T20:08:15Z", "ms": -1534305105285.3455 }, "end": { "local": "1921-05-21T03:58:59+08:00", "utc": "1921-05-20T19:58:59Z", "ms": -1534219260625.0276 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-05-19", "window": { "start": { "local": "1921-05-19T18:43:09+08:00", "utc": "1921-05-19T10:43:09Z", "ms": -1534339010937.797 }, "end": { "local": "1921-05-19T20:07:22+08:00", "utc": "1921-05-19T12:07:22Z", "ms": -1534333957953.6375 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "1921-05-20", "window": { "start": { "local": "1921-05-20T18:43:41+08:00", "utc": "1921-05-20T10:43:41Z", "ms": -1534252579136.452 }, "end": { "local": "1921-05-20T20:07:46+08:00", "utc": "1921-05-20T12:07:46Z", "ms": -1534247533847.627 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:08 on Fri 20 May to 03:59 on Sat 21 May.", "fact": "1921-05-19T20:08:15Z → 1921-05-20T19:58:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:07 on the 19th, 18:44–20:08 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 0 of 84 minutes on the 19th and 84 of 84 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 28273 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Fuzhou, 1921: Friday 20 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "nrisimha-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 14 Nrsimha caturdasi (pradosa vyapini — if it occurs on two successive days, the second day is to be observed, special when combined with naksatra 'Svati', yoga 'Siddhi' and 'Saturday')." } ], "not_evaluated": "The row calls the day special with Svātī nakṣatra, Siddhi yoga and a Saturday; none is tested.", "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-05-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1921 falls on Friday 20 May. Caturdaśī runs from 04:08 on Fri 20 May to 03:59 on Sat 21 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26417, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-05-21T03:58:59+08:00", "utc": "1921-05-20T19:58:59Z", "ms": -1534219260625.0276 }, "end": { "local": "1921-05-22T04:15:03+08:00", "utc": "1921-05-21T20:15:03Z", "ms": -1534131897401.3892 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-21T03:58:59+08:00", "utc": "1921-05-20T19:58:59Z", "ms": -1534219260625.0276 }, "end": { "local": "1921-05-22T04:15:03+08:00", "utc": "1921-05-21T20:15:03Z", "ms": -1534131897401.3892 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-05-21", "window": { "start": { "local": "1921-05-21T11:35:17+08:00", "utc": "1921-05-21T03:35:17Z", "ms": -1534191883473.4702 }, "end": { "local": "1921-05-21T12:23:17+08:00", "utc": "1921-05-21T04:23:17Z", "ms": -1534189003473.4702 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-05-22", "window": { "start": { "local": "1921-05-22T11:35:20+08:00", "utc": "1921-05-22T03:35:20Z", "ms": -1534105480067.7603 }, "end": { "local": "1921-05-22T12:23:20+08:00", "utc": "1921-05-22T04:23:20Z", "ms": -1534102600067.7603 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 03:59 on Sat 21 May to 04:15 on Sun 22 May.", "fact": "1921-05-20T19:58:59Z → 1921-05-21T20:15:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 21st, 11:35–12:23 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26417 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Fuzhou, 1921: Saturday 21 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": "1921-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Buddha Pūrṇimā 1921 falls on Saturday 21 May. Pūrṇimā runs from 03:59 on Sat 21 May to 04:15 on Sun 22 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26417, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-05-21T03:58:59+08:00", "utc": "1921-05-20T19:58:59Z", "ms": -1534219260625.0276 }, "end": { "local": "1921-05-22T04:15:03+08:00", "utc": "1921-05-21T20:15:03Z", "ms": -1534131897401.3892 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-21T03:58:59+08:00", "utc": "1921-05-20T19:58:59Z", "ms": -1534219260625.0276 }, "end": { "local": "1921-05-22T04:15:03+08:00", "utc": "1921-05-21T20:15:03Z", "ms": -1534131897401.3892 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-05-21", "window": { "start": { "local": "1921-05-21T11:35:17+08:00", "utc": "1921-05-21T03:35:17Z", "ms": -1534191883473.4702 }, "end": { "local": "1921-05-21T12:23:17+08:00", "utc": "1921-05-21T04:23:17Z", "ms": -1534189003473.4702 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-05-22", "window": { "start": { "local": "1921-05-22T11:35:20+08:00", "utc": "1921-05-22T03:35:20Z", "ms": -1534105480067.7603 }, "end": { "local": "1921-05-22T12:23:20+08:00", "utc": "1921-05-22T04:23:20Z", "ms": -1534102600067.7603 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 03:59 on Sat 21 May to 04:15 on Sun 22 May.", "fact": "1921-05-20T19:58:59Z → 1921-05-21T20:15:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 21st, 11:35–12:23 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26417 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Fuzhou, 1921: Saturday 21 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": "1921-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Sampat Gaurī Vrata 1921 falls on Saturday 21 May. Pūrṇimā runs from 03:59 on Sat 21 May to 04:15 on Sun 22 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-05-25", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-05-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39139, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-05-25T07:44:15+08:00", "utc": "1921-05-24T23:44:15Z", "ms": -1533860144883.6814 }, "end": { "local": "1921-05-26T09:43:37+08:00", "utc": "1921-05-26T01:43:37Z", "ms": -1533766582562.3333 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-05-25T07:44:15+08:00", "utc": "1921-05-24T23:44:15Z", "ms": -1533860144883.6814 }, "end": { "local": "1921-05-26T09:43:37+08:00", "utc": "1921-05-26T01:43:37Z", "ms": -1533766582562.3333 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-05-24", "window": { "start": { "local": "1921-05-24T20:51:57+08:00", "utc": "1921-05-24T12:51:57Z", "ms": -1533899283485.0796 }, "end": { "local": "1921-05-24T20:51:57+08:00", "utc": "1921-05-24T12:51:57Z", "ms": -1533899283485.0796 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-05-25", "window": { "start": { "local": "1921-05-25T21:37:17+08:00", "utc": "1921-05-25T13:37:17Z", "ms": -1533810162709.3274 }, "end": { "local": "1921-05-25T21:37:17+08:00", "utc": "1921-05-25T13:37:17Z", "ms": -1533810162709.3274 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:44 on Wed 25 May to 09:44 on Thu 26 May.", "fact": "1921-05-24T23:44:15Z → 1921-05-26T01:43:37Z" }, { "step": "kaala", "text": "Moonrise is at 20:52 on the 24th and 21:37 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 24th and is on the 25th.", "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 39139 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Wednesday 25 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": "1921-05-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-05-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Wednesday 25 May. Caturthī runs from 07:44 on Wed 25 May to 09:44 on Thu 26 May and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-05-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ekadashi?on=1921-06-02", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29003, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-06-01T21:02:16+08:00", "utc": "1921-06-01T13:02:16Z", "ms": -1533207464074.1082 }, "end": { "local": "1921-06-02T21:07:15+08:00", "utc": "1921-06-02T13:07:15Z", "ms": -1533120765021.7283 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-01T21:02:16+08:00", "utc": "1921-06-01T13:02:16Z", "ms": -1533207464074.1082 }, "end": { "local": "1921-06-02T21:07:15+08:00", "utc": "1921-06-02T13:07:15Z", "ms": -1533120765021.7283 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-06-02", "window": { "start": { "local": "1921-06-02T05:10:48+08:00", "utc": "1921-06-01T21:10:48Z", "ms": -1533178152377.2654 }, "end": { "local": "1921-06-02T05:10:48+08:00", "utc": "1921-06-01T21:10:48Z", "ms": -1533178152377.2654 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-06-03", "window": { "start": { "local": "1921-06-03T05:10:38+08:00", "utc": "1921-06-02T21:10:38Z", "ms": -1533091761809.8352 }, "end": { "local": "1921-06-03T05:10:38+08:00", "utc": "1921-06-02T21:10:38Z", "ms": -1533091761809.8352 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:02 on Wed 1 Jun to 21:07 on Thu 2 Jun.", "fact": "1921-06-01T13:02:16Z → 1921-06-02T13:07:15Z" }, { "step": "kaala", "text": "Sunrise is at 05:11 on the 2nd and 05:11 on the 3rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 2nd and is not on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29003 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Fuzhou, 1921: Thursday 2 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": "1921-06-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Aparā Ekādaśī 1921 falls on Thursday 2 June. Ekādaśī runs from 21:02 on Wed 1 Jun to 21:07 on Thu 2 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-06-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-06-04", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 428, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-06-03T20:25:08+08:00", "utc": "1921-06-03T12:25:08Z", "ms": -1533036891550.6016 }, "end": { "local": "1921-06-04T18:58:16+08:00", "utc": "1921-06-04T10:58:16Z", "ms": -1532955703501.109 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-03T20:25:08+08:00", "utc": "1921-06-03T12:25:08Z", "ms": -1533036891550.6016 }, "end": { "local": "1921-06-04T18:58:16+08:00", "utc": "1921-06-04T10:58:16Z", "ms": -1532955703501.109 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-06-03", "window": { "start": { "local": "1921-06-03T18:50:41+08:00", "utc": "1921-06-03T10:50:41Z", "ms": -1533042558648.456 }, "end": { "local": "1921-06-03T20:13:20+08:00", "utc": "1921-06-03T12:13:20Z", "ms": -1533037600158.0627 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "1921-06-04", "window": { "start": { "local": "1921-06-04T18:51:09+08:00", "utc": "1921-06-04T10:51:09Z", "ms": -1532956131393.1494 }, "end": { "local": "1921-06-04T20:13:43+08:00", "utc": "1921-06-04T12:13:43Z", "ms": -1532951177456.4631 } }, "covered_min": 7, "window_min": 83, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:25 on Fri 3 Jun to 18:58 on Sat 4 Jun.", "fact": "1921-06-03T12:25:08Z → 1921-06-04T10:58:16Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:13 on the 3rd, 18:51–20:14 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 83 minutes on the 3rd and 7 of 83 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 428 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Saturday 4 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": "1921-06-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-03", "confidence": "boundary" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Saturday 4 June. Trayodaśī runs from 20:25 on Fri 3 Jun to 18:58 on Sat 4 Jun and covers 7 of 83 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-06-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-06-04", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16709, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-06-04T18:58:16+08:00", "utc": "1921-06-04T10:58:16Z", "ms": -1532955703501.109 }, "end": { "local": "1921-06-05T16:52:07+08:00", "utc": "1921-06-05T08:52:07Z", "ms": -1532876873407.9565 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-04T18:58:16+08:00", "utc": "1921-06-04T10:58:16Z", "ms": -1532955703501.109 }, "end": { "local": "1921-06-05T16:52:07+08:00", "utc": "1921-06-05T08:52:07Z", "ms": -1532876873407.9565 } }, "kaala": "nishita", "days": [ { "local_date": "1921-06-04", "window": { "start": { "local": "1921-06-04T23:36:46+08:00", "utc": "1921-06-04T15:36:46Z", "ms": -1532938994130.5757 }, "end": { "local": "1921-06-05T00:24:46+08:00", "utc": "1921-06-04T16:24:46Z", "ms": -1532936114130.5757 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-06-05", "window": { "start": { "local": "1921-06-05T23:36:56+08:00", "utc": "1921-06-05T15:36:56Z", "ms": -1532852583589.9785 }, "end": { "local": "1921-06-06T00:24:56+08:00", "utc": "1921-06-05T16:24:56Z", "ms": -1532849703589.9785 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:58 on Sat 4 Jun to 16:52 on Sun 5 Jun.", "fact": "1921-06-04T10:58:16Z → 1921-06-05T08:52:07Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:37–00:25 on the 4th, 23:37–00:25 on the 5th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16709 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Saturday 4 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": "1921-06-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Saturday 4 June. Caturdaśī runs from 18:58 on Sat 4 Jun to 16:52 on Sun 5 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-06-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13016, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1921-06-08T08:00:35+08:00", "utc": "1921-06-08T00:00:35Z", "ms": -1532649565187.9497 }, "end": { "local": "1921-06-09T04:43:59+08:00", "utc": "1921-06-08T20:43:59Z", "ms": -1532574960914.516 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-08T08:00:35+08:00", "utc": "1921-06-08T00:00:35Z", "ms": -1532649565187.9497 }, "end": { "local": "1921-06-09T04:43:59+08:00", "utc": "1921-06-08T20:43:59Z", "ms": -1532574960914.516 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-06-08", "window": { "start": { "local": "1921-06-08T11:37:31+08:00", "utc": "1921-06-08T03:37:31Z", "ms": -1532636549054.4648 }, "end": { "local": "1921-06-08T12:25:31+08:00", "utc": "1921-06-08T04:25:31Z", "ms": -1532633669054.4648 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-06-09", "window": { "start": { "local": "1921-06-09T11:37:42+08:00", "utc": "1921-06-09T03:37:42Z", "ms": -1532550137910.1694 }, "end": { "local": "1921-06-09T12:25:42+08:00", "utc": "1921-06-09T04:25:42Z", "ms": -1532547257910.1694 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 08:01 on Wed 8 Jun to 04:44 on Thu 9 Jun.", "fact": "1921-06-08T00:00:35Z → 1921-06-08T20:43:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 8th, 11:38–12:26 on the 9th.", "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 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 13016 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Fuzhou, 1921: Wednesday 8 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rambha-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Rambha trtiya (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-06-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Rambhā Tṛtīyā 1921 falls on Wednesday 8 June. Tṛtīyā runs from 08:01 on Wed 8 Jun to 04:44 on Thu 9 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-06-09", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24823, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-06-09T04:43:59+08:00", "utc": "1921-06-08T20:43:59Z", "ms": -1532574960914.516 }, "end": { "local": "1921-06-10T01:33:21+08:00", "utc": "1921-06-09T17:33:21Z", "ms": -1532499999421.636 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-09T04:43:59+08:00", "utc": "1921-06-08T20:43:59Z", "ms": -1532574960914.516 }, "end": { "local": "1921-06-10T01:33:21+08:00", "utc": "1921-06-09T17:33:21Z", "ms": -1532499999421.636 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-06-09", "window": { "start": { "local": "1921-06-09T11:37:42+08:00", "utc": "1921-06-09T03:37:42Z", "ms": -1532550137910.1694 }, "end": { "local": "1921-06-09T12:25:42+08:00", "utc": "1921-06-09T04:25:42Z", "ms": -1532547257910.1694 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-06-10", "window": { "start": { "local": "1921-06-10T11:37:53+08:00", "utc": "1921-06-10T03:37:53Z", "ms": -1532463726521.314 }, "end": { "local": "1921-06-10T12:25:53+08:00", "utc": "1921-06-10T04:25:53Z", "ms": -1532460846521.314 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:44 on Thu 9 Jun to 01:33 on Fri 10 Jun.", "fact": "1921-06-08T20:43:59Z → 1921-06-09T17:33:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 9th, 11:38–12:26 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24823 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 1921: Thursday 9 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": "1921-06-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 1921 falls on Thursday 9 June. Caturthī runs from 04:44 on Thu 9 Jun to 01:33 on Fri 10 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-06-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27332, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1921-06-10T22:36:55+08:00", "utc": "1921-06-10T14:36:55Z", "ms": -1532424184645.8306 }, "end": { "local": "1921-06-11T20:01:37+08:00", "utc": "1921-06-11T12:01:37Z", "ms": -1532347102514.6868 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-10T22:36:55+08:00", "utc": "1921-06-10T14:36:55Z", "ms": -1532424184645.8306 }, "end": { "local": "1921-06-11T20:01:37+08:00", "utc": "1921-06-11T12:01:37Z", "ms": -1532347102514.6868 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-06-10", "window": { "start": { "local": "1921-06-10T11:37:53+08:00", "utc": "1921-06-10T03:37:53Z", "ms": -1532463726521.314 }, "end": { "local": "1921-06-10T12:25:53+08:00", "utc": "1921-06-10T04:25:53Z", "ms": -1532460846521.314 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-06-11", "window": { "start": { "local": "1921-06-11T11:38:05+08:00", "utc": "1921-06-11T03:38:05Z", "ms": -1532377314912.2842 }, "end": { "local": "1921-06-11T12:26:05+08:00", "utc": "1921-06-11T04:26:05Z", "ms": -1532374434912.2842 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:37 on Fri 10 Jun to 20:02 on Sat 11 Jun.", "fact": "1921-06-10T14:36:55Z → 1921-06-11T12:01:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 10th, 11:38–12:26 on the 11th.", "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 10th and 48 of 48 on the 11th.", "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 27332 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Fuzhou, 1921: Saturday 11 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aranya-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-06-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Araṇya Gaurī Vrata 1921 falls on Saturday 11 June. Ṣaṣṭhī runs from 22:37 on Fri 10 Jun to 20:02 on Sat 11 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27332, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1921-06-10T22:36:55+08:00", "utc": "1921-06-10T14:36:55Z", "ms": -1532424184645.8306 }, "end": { "local": "1921-06-11T20:01:37+08:00", "utc": "1921-06-11T12:01:37Z", "ms": -1532347102514.6868 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-10T22:36:55+08:00", "utc": "1921-06-10T14:36:55Z", "ms": -1532424184645.8306 }, "end": { "local": "1921-06-11T20:01:37+08:00", "utc": "1921-06-11T12:01:37Z", "ms": -1532347102514.6868 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-06-10", "window": { "start": { "local": "1921-06-10T11:37:53+08:00", "utc": "1921-06-10T03:37:53Z", "ms": -1532463726521.314 }, "end": { "local": "1921-06-10T12:25:53+08:00", "utc": "1921-06-10T04:25:53Z", "ms": -1532460846521.314 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-06-11", "window": { "start": { "local": "1921-06-11T11:38:05+08:00", "utc": "1921-06-11T03:38:05Z", "ms": -1532377314912.2842 }, "end": { "local": "1921-06-11T12:26:05+08:00", "utc": "1921-06-11T04:26:05Z", "ms": -1532374434912.2842 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 22:37 on Fri 10 Jun to 20:02 on Sat 11 Jun.", "fact": "1921-06-10T14:36:55Z → 1921-06-11T12:01:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 10th, 11:38–12:26 on the 11th.", "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 10th and 48 of 48 on the 11th.", "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 27332 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Fuzhou, 1921: Saturday 11 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi-jyaishtha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-06-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1921 falls on Saturday 11 June. Ṣaṣṭhī runs from 22:37 on Fri 10 Jun to 20:02 on Sat 11 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-06-16", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32739, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-06-15T14:25:57+08:00", "utc": "1921-06-15T06:25:57Z", "ms": -1532021643486.9878 }, "end": { "local": "1921-06-16T14:16:06+08:00", "utc": "1921-06-16T06:16:06Z", "ms": -1531935834137.839 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-15T14:25:57+08:00", "utc": "1921-06-15T06:25:57Z", "ms": -1532021643486.9878 }, "end": { "local": "1921-06-16T14:16:06+08:00", "utc": "1921-06-16T06:16:06Z", "ms": -1531935834137.839 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-06-15", "window": { "start": { "local": "1921-06-15T05:10:21+08:00", "utc": "1921-06-14T21:10:21Z", "ms": -1532054979369.1738 }, "end": { "local": "1921-06-15T05:10:21+08:00", "utc": "1921-06-14T21:10:21Z", "ms": -1532054979369.1738 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-06-16", "window": { "start": { "local": "1921-06-16T05:10:27+08:00", "utc": "1921-06-15T21:10:27Z", "ms": -1531968573305.184 }, "end": { "local": "1921-06-16T05:10:27+08:00", "utc": "1921-06-15T21:10:27Z", "ms": -1531968573305.184 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:26 on Wed 15 Jun to 14:16 on Thu 16 Jun.", "fact": "1921-06-15T06:25:57Z → 1921-06-16T06:16:06Z" }, { "step": "kaala", "text": "Sunrise is at 05:10 on the 15th and 05:10 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 15th and is on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32739 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Fuzhou, 1921: Thursday 16 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": "1921-06-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Nirjalā Ekādaśī 1921 falls on Thursday 16 June. Ekādaśī runs from 14:26 on Wed 15 Jun to 14:16 on Thu 16 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-06-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6540, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1921-06-16T14:16:06+08:00", "utc": "1921-06-16T06:16:06Z", "ms": -1531935834137.839 }, "end": { "local": "1921-06-17T14:32:38+08:00", "utc": "1921-06-17T06:32:38Z", "ms": -1531848441661.3982 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-16T14:16:06+08:00", "utc": "1921-06-16T06:16:06Z", "ms": -1531935834137.839 }, "end": { "local": "1921-06-17T14:32:38+08:00", "utc": "1921-06-17T06:32:38Z", "ms": -1531848441661.3982 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-06-16", "window": { "start": { "local": "1921-06-16T11:39:06+08:00", "utc": "1921-06-16T03:39:06Z", "ms": -1531945254348.4287 }, "end": { "local": "1921-06-16T12:27:06+08:00", "utc": "1921-06-16T04:27:06Z", "ms": -1531942374348.4287 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-06-17", "window": { "start": { "local": "1921-06-17T11:39:18+08:00", "utc": "1921-06-17T03:39:18Z", "ms": -1531858841877.9463 }, "end": { "local": "1921-06-17T12:27:18+08:00", "utc": "1921-06-17T04:27:18Z", "ms": -1531855961877.9463 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:16 on Thu 16 Jun to 14:33 on Fri 17 Jun.", "fact": "1921-06-16T06:16:06Z → 1921-06-17T06:32:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 16th, 11:39–12:27 on the 17th.", "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 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6540 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Fuzhou, 1921: Friday 17 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-rama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-06-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Śrī Rāma Dvādaśī 1921 falls on Friday 17 June. Dvādaśī runs from 14:16 on Thu 16 Jun to 14:33 on Fri 17 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-06-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13376, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-06-17T14:32:38+08:00", "utc": "1921-06-17T06:32:38Z", "ms": -1531848441661.3982 }, "end": { "local": "1921-06-18T15:13:23+08:00", "utc": "1921-06-18T07:13:23Z", "ms": -1531759596536.7053 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-17T14:32:38+08:00", "utc": "1921-06-17T06:32:38Z", "ms": -1531848441661.3982 }, "end": { "local": "1921-06-18T15:13:23+08:00", "utc": "1921-06-18T07:13:23Z", "ms": -1531759596536.7053 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-06-17", "window": { "start": { "local": "1921-06-17T18:56:02+08:00", "utc": "1921-06-17T10:56:02Z", "ms": -1531832637601.084 }, "end": { "local": "1921-06-17T20:18:00+08:00", "utc": "1921-06-17T12:18:00Z", "ms": -1531827720312.1218 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "1921-06-18", "window": { "start": { "local": "1921-06-18T18:56:19+08:00", "utc": "1921-06-18T10:56:19Z", "ms": -1531746220735.385 }, "end": { "local": "1921-06-18T20:18:16+08:00", "utc": "1921-06-18T12:18:16Z", "ms": -1531741304458.5796 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:33 on Fri 17 Jun to 15:13 on Sat 18 Jun.", "fact": "1921-06-17T06:32:38Z → 1921-06-18T07:13:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:18 on the 17th, 18:56–20:18 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 82 of 82 minutes on the 17th and 0 of 82 on the 18th.", "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 13376 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Friday 17 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": "1921-06-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Friday 17 June. Trayodaśī runs from 14:33 on Fri 17 Jun to 15:13 on Sat 18 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-06-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4556, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-06-19T16:16:36+08:00", "utc": "1921-06-19T08:16:36Z", "ms": -1531669404462.7798 }, "end": { "local": "1921-06-20T17:40:54+08:00", "utc": "1921-06-20T09:40:54Z", "ms": -1531577946335.905 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-19T16:16:36+08:00", "utc": "1921-06-19T08:16:36Z", "ms": -1531669404462.7798 }, "end": { "local": "1921-06-20T17:40:54+08:00", "utc": "1921-06-20T09:40:54Z", "ms": -1531577946335.905 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-06-19", "window": { "start": { "local": "1921-06-19T18:56:35+08:00", "utc": "1921-06-19T10:56:35Z", "ms": -1531659804816.9763 }, "end": { "local": "1921-06-19T20:18:31+08:00", "utc": "1921-06-19T12:18:31Z", "ms": -1531654889287.8723 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "1921-06-20", "window": { "start": { "local": "1921-06-20T18:56:50+08:00", "utc": "1921-06-20T10:56:50Z", "ms": -1531573389867.6558 }, "end": { "local": "1921-06-20T20:18:45+08:00", "utc": "1921-06-20T12:18:45Z", "ms": -1531568474821.3186 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:17 on Sun 19 Jun to 17:41 on Mon 20 Jun.", "fact": "1921-06-19T08:16:36Z → 1921-06-20T09:40:54Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:57–20:19 on the 19th, 18:57–20:19 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 82 of 82 minutes on the 19th and 0 of 82 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: purvaviddha → only-day · margin 4556 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Fuzhou, 1921: Sunday 19 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vata-savitri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Vata-savitri vrata (Deccan) (pradosavyapini, purvaviddha), Snanayatra (Bengal & Orissa) (paraviddha)." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-06-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Vaṭa Sāvitrī Vrata 1921 falls on Sunday 19 June. Pūrṇimā runs from 16:17 on Sun 19 Jun to 17:41 on Mon 20 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-06-24", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-06-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9938, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-06-23T23:42:51+08:00", "utc": "1921-06-23T15:42:51Z", "ms": -1531297028652.435 }, "end": { "local": "1921-06-25T02:07:13+08:00", "utc": "1921-06-24T18:07:13Z", "ms": -1531201966862.1292 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-06-23T23:42:51+08:00", "utc": "1921-06-23T15:42:51Z", "ms": -1531297028652.435 }, "end": { "local": "1921-06-25T02:07:13+08:00", "utc": "1921-06-24T18:07:13Z", "ms": -1531201966862.1292 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-06-23", "window": { "start": { "local": "1921-06-23T20:57:13+08:00", "utc": "1921-06-23T12:57:13Z", "ms": -1531306966853.5972 }, "end": { "local": "1921-06-23T20:57:13+08:00", "utc": "1921-06-23T12:57:13Z", "ms": -1531306966853.5972 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-06-24", "window": { "start": { "local": "1921-06-24T21:35:07+08:00", "utc": "1921-06-24T13:35:07Z", "ms": -1531218293179.1436 }, "end": { "local": "1921-06-24T21:35:07+08:00", "utc": "1921-06-24T13:35:07Z", "ms": -1531218293179.1436 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:43 on Thu 23 Jun to 02:07 on Sat 25 Jun.", "fact": "1921-06-23T15:42:51Z → 1921-06-24T18:07:13Z" }, { "step": "kaala", "text": "Moonrise is at 20:57 on the 23rd and 21:35 on the 24th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 23rd and is on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9938 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Friday 24 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": "1921-06-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-06-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Friday 24 June. Caturthī runs from 23:43 on Thu 23 Jun to 02:07 on Sat 25 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-06-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ekadashi?on=1921-07-02", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13142, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-07-01T10:02:05+08:00", "utc": "1921-07-01T02:02:05Z", "ms": -1530655075157.7065 }, "end": { "local": "1921-07-02T08:53:21+08:00", "utc": "1921-07-02T00:53:21Z", "ms": -1530572799466.7341 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-01T10:02:05+08:00", "utc": "1921-07-01T02:02:05Z", "ms": -1530655075157.7065 }, "end": { "local": "1921-07-02T08:53:21+08:00", "utc": "1921-07-02T00:53:21Z", "ms": -1530572799466.7341 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-07-01", "window": { "start": { "local": "1921-07-01T05:13:58+08:00", "utc": "1921-06-30T21:13:58Z", "ms": -1530672362406.0935 }, "end": { "local": "1921-07-01T05:13:58+08:00", "utc": "1921-06-30T21:13:58Z", "ms": -1530672362406.0935 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-07-02", "window": { "start": { "local": "1921-07-02T05:14:19+08:00", "utc": "1921-07-01T21:14:19Z", "ms": -1530585941349.869 }, "end": { "local": "1921-07-02T05:14:19+08:00", "utc": "1921-07-01T21:14:19Z", "ms": -1530585941349.869 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:02 on Fri 1 Jul to 08:53 on Sat 2 Jul.", "fact": "1921-07-01T02:02:05Z → 1921-07-02T00:53:21Z" }, { "step": "kaala", "text": "Sunrise is at 05:14 on the 1st and 05:14 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 1st and is on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13142 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Fuzhou, 1921: Saturday 2 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": "1921-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Yoginī Ekādaśī 1921 falls on Saturday 2 July. Ekādaśī runs from 10:02 on Fri 1 Jul to 08:53 on Sat 2 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-07-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-07-03", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28717, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-07-03T06:57:00+08:00", "utc": "1921-07-02T22:57:00Z", "ms": -1530493379950.9531 }, "end": { "local": "1921-07-04T04:19:18+08:00", "utc": "1921-07-03T20:19:18Z", "ms": -1530416442479.217 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-03T06:57:00+08:00", "utc": "1921-07-02T22:57:00Z", "ms": -1530493379950.9531 }, "end": { "local": "1921-07-04T04:19:18+08:00", "utc": "1921-07-03T20:19:18Z", "ms": -1530416442479.217 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-07-02", "window": { "start": { "local": "1921-07-02T18:58:27+08:00", "utc": "1921-07-02T10:58:27Z", "ms": -1530536493295.4502 }, "end": { "local": "1921-07-02T20:20:37+08:00", "utc": "1921-07-02T12:20:37Z", "ms": -1530531563465.541 } }, "covered_min": 0, "window_min": 82, "qualifies": false }, { "local_date": "1921-07-03", "window": { "start": { "local": "1921-07-03T18:58:27+08:00", "utc": "1921-07-03T10:58:27Z", "ms": -1530450092693.6453 }, "end": { "local": "1921-07-03T20:20:40+08:00", "utc": "1921-07-03T12:20:40Z", "ms": -1530445159948.203 } }, "covered_min": 82, "window_min": 82, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:57 on Sun 3 Jul to 04:19 on Mon 4 Jul.", "fact": "1921-07-02T22:57:00Z → 1921-07-03T20:19:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:58–20:21 on the 2nd, 18:58–20:21 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 82 minutes on the 2nd and 82 of 82 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 28717 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Sunday 3 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": "1921-07-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Sunday 3 July. Trayodaśī runs from 06:57 on Sun 3 Jul to 04:19 on Mon 4 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-07-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-07-04", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2275, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-07-04T04:19:18+08:00", "utc": "1921-07-03T20:19:18Z", "ms": -1530416442479.217 }, "end": { "local": "1921-07-05T01:08:51+08:00", "utc": "1921-07-04T17:08:51Z", "ms": -1530341468598.8372 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-04T04:19:18+08:00", "utc": "1921-07-03T20:19:18Z", "ms": -1530416442479.217 }, "end": { "local": "1921-07-05T01:08:51+08:00", "utc": "1921-07-04T17:08:51Z", "ms": -1530341468598.8372 } }, "kaala": "nishita", "days": [ { "local_date": "1921-07-03", "window": { "start": { "local": "1921-07-03T23:42:45+08:00", "utc": "1921-07-03T15:42:45Z", "ms": -1530433034898.236 }, "end": { "local": "1921-07-04T00:30:45+08:00", "utc": "1921-07-03T16:30:45Z", "ms": -1530430154898.236 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-07-04", "window": { "start": { "local": "1921-07-04T23:42:56+08:00", "utc": "1921-07-04T15:42:56Z", "ms": -1530346623646.814 }, "end": { "local": "1921-07-05T00:30:56+08:00", "utc": "1921-07-04T16:30:56Z", "ms": -1530343743646.814 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:19 on Mon 4 Jul to 01:09 on Tue 5 Jul.", "fact": "1921-07-03T20:19:18Z → 1921-07-04T17:08:51Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:43–00:31 on the 3rd, 23:43–00:31 on the 4th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2275 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Monday 4 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": "1921-07-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Monday 4 July. Caturdaśī runs from 04:19 on Mon 4 Jul to 01:09 on Tue 5 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-07-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5687, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1921-07-06T17:51:13+08:00", "utc": "1921-07-06T09:51:13Z", "ms": -1530194926786.7874 }, "end": { "local": "1921-07-07T14:06:03+08:00", "utc": "1921-07-07T06:06:03Z", "ms": -1530122037314.7246 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-06T17:51:13+08:00", "utc": "1921-07-06T09:51:13Z", "ms": -1530194926786.7874 }, "end": { "local": "1921-07-07T14:06:03+08:00", "utc": "1921-07-07T06:06:03Z", "ms": -1530122037314.7246 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-07-06", "window": { "start": { "local": "1921-07-06T11:43:06+08:00", "utc": "1921-07-06T03:43:06Z", "ms": -1530217014261.569 }, "end": { "local": "1921-07-06T12:31:06+08:00", "utc": "1921-07-06T04:31:06Z", "ms": -1530214134261.569 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-07-07", "window": { "start": { "local": "1921-07-07T11:43:16+08:00", "utc": "1921-07-07T03:43:16Z", "ms": -1530130604290.2134 }, "end": { "local": "1921-07-07T12:31:16+08:00", "utc": "1921-07-07T04:31:16Z", "ms": -1530127724290.2134 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 17:51 on Wed 6 Jul to 14:06 on Thu 7 Jul.", "fact": "1921-07-06T09:51:13Z → 1921-07-07T06:06:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 6th, 11:43–12:31 on the 7th.", "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 6th and 48 of 48 on the 7th.", "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 5687 s" }, { "step": "ruling", "text": "Rathayātrā, Fuzhou, 1921: Thursday 7 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": "1921-07-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Rathayātrā 1921 falls on Thursday 7 July. Dvitīyā runs from 17:51 on Wed 6 Jul to 14:06 on Thu 7 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-07-08", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4342, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-07-08T10:31:04+08:00", "utc": "1921-07-08T02:31:04Z", "ms": -1530048536495.635 }, "end": { "local": "1921-07-09T07:16:07+08:00", "utc": "1921-07-08T23:16:07Z", "ms": -1529973832663.2405 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-08T10:31:04+08:00", "utc": "1921-07-08T02:31:04Z", "ms": -1530048536495.635 }, "end": { "local": "1921-07-09T07:16:07+08:00", "utc": "1921-07-08T23:16:07Z", "ms": -1529973832663.2405 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-07-08", "window": { "start": { "local": "1921-07-08T11:43:25+08:00", "utc": "1921-07-08T03:43:25Z", "ms": -1530044194687.039 }, "end": { "local": "1921-07-08T12:31:25+08:00", "utc": "1921-07-08T04:31:25Z", "ms": -1530041314687.039 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-07-09", "window": { "start": { "local": "1921-07-09T11:43:35+08:00", "utc": "1921-07-09T03:43:35Z", "ms": -1529957785475.3882 }, "end": { "local": "1921-07-09T12:31:35+08:00", "utc": "1921-07-09T04:31:35Z", "ms": -1529954905475.3882 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:31 on Fri 8 Jul to 07:16 on Sat 9 Jul.", "fact": "1921-07-08T02:31:04Z → 1921-07-08T23:16:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 8th, 11:44–12:32 on the 9th.", "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 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4342 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 1921: Friday 8 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": "1921-07-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 1921 falls on Friday 8 July. Caturthī runs from 10:31 on Fri 8 Jul to 07:16 on Sat 9 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-07-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16047, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1921-07-09T07:16:07+08:00", "utc": "1921-07-08T23:16:07Z", "ms": -1529973832663.2405 }, "end": { "local": "1921-07-10T04:29:42+08:00", "utc": "1921-07-09T20:29:42Z", "ms": -1529897417761.0466 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-09T07:16:07+08:00", "utc": "1921-07-08T23:16:07Z", "ms": -1529973832663.2405 }, "end": { "local": "1921-07-10T04:29:42+08:00", "utc": "1921-07-09T20:29:42Z", "ms": -1529897417761.0466 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-07-09", "window": { "start": { "local": "1921-07-09T11:43:35+08:00", "utc": "1921-07-09T03:43:35Z", "ms": -1529957785475.3882 }, "end": { "local": "1921-07-09T12:31:35+08:00", "utc": "1921-07-09T04:31:35Z", "ms": -1529954905475.3882 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-07-10", "window": { "start": { "local": "1921-07-10T11:43:43+08:00", "utc": "1921-07-10T03:43:43Z", "ms": -1529871376676.6133 }, "end": { "local": "1921-07-10T12:31:43+08:00", "utc": "1921-07-10T04:31:43Z", "ms": -1529868496676.6133 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 07:16 on Sat 9 Jul to 04:30 on Sun 10 Jul.", "fact": "1921-07-08T23:16:07Z → 1921-07-09T20:29:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 9th, 11:44–12:32 on the 10th.", "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 9th and 0 of 48 on the 10th.", "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 16047 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Fuzhou, 1921: Saturday 9 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": "1921-07-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Skanda Pañcamī 1921 falls on Saturday 9 July. Pañcamī runs from 07:16 on Sat 9 Jul to 04:30 on Sun 10 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33931, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1921-07-11T02:18:20+08:00", "utc": "1921-07-10T18:18:20Z", "ms": -1529818899742.242 }, "end": { "local": "1921-07-12T00:46:08+08:00", "utc": "1921-07-11T16:46:08Z", "ms": -1529738031583.4023 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-11T02:18:20+08:00", "utc": "1921-07-10T18:18:20Z", "ms": -1529818899742.242 }, "end": { "local": "1921-07-12T00:46:08+08:00", "utc": "1921-07-11T16:46:08Z", "ms": -1529738031583.4023 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-07-11", "window": { "start": { "local": "1921-07-11T11:43:52+08:00", "utc": "1921-07-11T03:43:52Z", "ms": -1529784968309.9521 }, "end": { "local": "1921-07-11T12:31:52+08:00", "utc": "1921-07-11T04:31:52Z", "ms": -1529782088309.9521 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-07-12", "window": { "start": { "local": "1921-07-12T11:44:00+08:00", "utc": "1921-07-12T03:44:00Z", "ms": -1529698560392.6353 }, "end": { "local": "1921-07-12T12:32:00+08:00", "utc": "1921-07-12T04:32:00Z", "ms": -1529695680392.6353 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:18 on Mon 11 Jul to 00:46 on Tue 12 Jul.", "fact": "1921-07-10T18:18:20Z → 1921-07-11T16:46:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 11th, 11:44–12:32 on the 12th.", "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 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33931 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Fuzhou, 1921: Monday 11 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": "1921-07-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Vivasvat Saptamī 1921 falls on Monday 11 July. Saptamī runs from 02:18 on Mon 11 Jul to 00:46 on Tue 12 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-07-15", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15608, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-07-15T00:05:41+08:00", "utc": "1921-07-14T16:05:41Z", "ms": -1529481258775.0957 }, "end": { "local": "1921-07-16T01:00:06+08:00", "utc": "1921-07-15T17:00:06Z", "ms": -1529391594025.8716 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-15T00:05:41+08:00", "utc": "1921-07-14T16:05:41Z", "ms": -1529481258775.0957 }, "end": { "local": "1921-07-16T01:00:06+08:00", "utc": "1921-07-15T17:00:06Z", "ms": -1529391594025.8716 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-07-15", "window": { "start": { "local": "1921-07-15T05:19:46+08:00", "utc": "1921-07-14T21:19:46Z", "ms": -1529462414327.3464 }, "end": { "local": "1921-07-15T05:19:46+08:00", "utc": "1921-07-14T21:19:46Z", "ms": -1529462414327.3464 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-07-16", "window": { "start": { "local": "1921-07-16T05:20:14+08:00", "utc": "1921-07-15T21:20:14Z", "ms": -1529375986204.5964 }, "end": { "local": "1921-07-16T05:20:14+08:00", "utc": "1921-07-15T21:20:14Z", "ms": -1529375986204.5964 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:06 on Fri 15 Jul to 01:00 on Sat 16 Jul.", "fact": "1921-07-14T16:05:41Z → 1921-07-15T17:00:06Z" }, { "step": "kaala", "text": "Sunrise is at 05:20 on the 15th and 05:20 on the 16th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 15th and is not on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15608 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Fuzhou, 1921: Friday 15 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": "1921-07-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Hariśayanī Ekādaśī 1921 falls on Friday 15 July. Ekādaśī runs from 00:06 on Fri 15 Jul to 01:00 on Sat 16 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-07-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-07-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21614, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-07-17T02:20:05+08:00", "utc": "1921-07-16T18:20:05Z", "ms": -1529300394782.015 }, "end": { "local": "1921-07-18T04:00:39+08:00", "utc": "1921-07-17T20:00:39Z", "ms": -1529207960509.4136 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-17T02:20:05+08:00", "utc": "1921-07-16T18:20:05Z", "ms": -1529300394782.015 }, "end": { "local": "1921-07-18T04:00:39+08:00", "utc": "1921-07-17T20:00:39Z", "ms": -1529207960509.4136 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-07-16", "window": { "start": { "local": "1921-07-16T18:56:39+08:00", "utc": "1921-07-16T10:56:39Z", "ms": -1529327000801.1648 }, "end": { "local": "1921-07-16T20:19:52+08:00", "utc": "1921-07-16T12:19:52Z", "ms": -1529322008400.7234 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "1921-07-17", "window": { "start": { "local": "1921-07-17T18:56:22+08:00", "utc": "1921-07-17T10:56:22Z", "ms": -1529240618271.8596 }, "end": { "local": "1921-07-17T20:19:40+08:00", "utc": "1921-07-17T12:19:40Z", "ms": -1529235619719.734 } }, "covered_min": 83, "window_min": 83, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:20 on Sun 17 Jul to 04:01 on Mon 18 Jul.", "fact": "1921-07-16T18:20:05Z → 1921-07-17T20:00:39Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:57–20:20 on the 16th, 18:56–20:20 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 83 minutes on the 16th and 83 of 83 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 21614 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Sunday 17 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": "1921-07-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Sunday 17 July. Trayodaśī runs from 02:20 on Sun 17 Jul to 04:01 on Mon 18 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-07-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13045, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-07-19T05:57:35+08:00", "utc": "1921-07-18T21:57:35Z", "ms": -1529114544742.7883 }, "end": { "local": "1921-07-20T08:07:20+08:00", "utc": "1921-07-20T00:07:20Z", "ms": -1529020360083.929 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-19T05:57:35+08:00", "utc": "1921-07-18T21:57:35Z", "ms": -1529114544742.7883 }, "end": { "local": "1921-07-20T08:07:20+08:00", "utc": "1921-07-20T00:07:20Z", "ms": -1529020360083.929 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-07-19", "window": { "start": { "local": "1921-07-19T11:44:41+08:00", "utc": "1921-07-19T03:44:41Z", "ms": -1529093718671.7534 }, "end": { "local": "1921-07-19T12:32:41+08:00", "utc": "1921-07-19T04:32:41Z", "ms": -1529090838671.7534 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-07-20", "window": { "start": { "local": "1921-07-20T11:44:45+08:00", "utc": "1921-07-20T03:44:45Z", "ms": -1529007314792.187 }, "end": { "local": "1921-07-20T12:32:45+08:00", "utc": "1921-07-20T04:32:45Z", "ms": -1529004434792.187 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:58 on Tue 19 Jul to 08:07 on Wed 20 Jul.", "fact": "1921-07-18T21:57:35Z → 1921-07-20T00:07:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 19th, 11:45–12:33 on the 20th.", "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 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 13045 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Fuzhou, 1921: Tuesday 19 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "guru-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Guru Pūrṇimā 1921 falls on Tuesday 19 July. Pūrṇimā runs from 05:58 on Tue 19 Jul to 08:07 on Wed 20 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29123, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-07-19T05:57:35+08:00", "utc": "1921-07-18T21:57:35Z", "ms": -1529114544742.7883 }, "end": { "local": "1921-07-20T08:07:20+08:00", "utc": "1921-07-20T00:07:20Z", "ms": -1529020360083.929 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-19T05:57:35+08:00", "utc": "1921-07-18T21:57:35Z", "ms": -1529114544742.7883 }, "end": { "local": "1921-07-20T08:07:20+08:00", "utc": "1921-07-20T00:07:20Z", "ms": -1529020360083.929 } }, "kaala": "sayahna", "days": [ { "local_date": "1921-07-19", "window": { "start": { "local": "1921-07-19T16:12:54+08:00", "utc": "1921-07-19T08:12:54Z", "ms": -1529077625738.743 }, "end": { "local": "1921-07-19T18:55:43+08:00", "utc": "1921-07-19T10:55:43Z", "ms": -1529067857116.736 } }, "covered_min": 163, "window_min": 163, "qualifies": true }, { "local_date": "1921-07-20", "window": { "start": { "local": "1921-07-20T16:12:43+08:00", "utc": "1921-07-20T08:12:43Z", "ms": -1528991237002.909 }, "end": { "local": "1921-07-20T18:55:22+08:00", "utc": "1921-07-20T10:55:22Z", "ms": -1528981478476.7236 } }, "covered_min": 0, "window_min": 163, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:58 on Tue 19 Jul to 08:07 on Wed 20 Jul.", "fact": "1921-07-18T21:57:35Z → 1921-07-20T00:07:20Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:13–18:56 on the 19th, 16:13–18:55 on the 20th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 163 of 163 minutes on the 19th and 0 of 163 on the 20th.", "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 29123 s" }, { "step": "ruling", "text": "Kokilā Vrata, Fuzhou, 1921: Tuesday 19 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": "1921-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Kokilā Vrata 1921 falls on Tuesday 19 July. Pūrṇimā runs from 05:58 on Tue 19 Jul to 08:07 on Wed 20 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34687, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-07-19T05:57:35+08:00", "utc": "1921-07-18T21:57:35Z", "ms": -1529114544742.7883 }, "end": { "local": "1921-07-20T08:07:20+08:00", "utc": "1921-07-20T00:07:20Z", "ms": -1529020360083.929 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-19T05:57:35+08:00", "utc": "1921-07-18T21:57:35Z", "ms": -1529114544742.7883 }, "end": { "local": "1921-07-20T08:07:20+08:00", "utc": "1921-07-20T00:07:20Z", "ms": -1529020360083.929 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-07-18", "window": { "start": { "local": "1921-07-18T18:56:03+08:00", "utc": "1921-07-18T10:56:03Z", "ms": -1529154237045.919 }, "end": { "local": "1921-07-18T20:19:28+08:00", "utc": "1921-07-18T12:19:28Z", "ms": -1529149232136.6992 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "1921-07-19", "window": { "start": { "local": "1921-07-19T18:55:43+08:00", "utc": "1921-07-19T10:55:43Z", "ms": -1529067857116.736 }, "end": { "local": "1921-07-19T20:19:14+08:00", "utc": "1921-07-19T12:19:14Z", "ms": -1529062845648.858 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:58 on Tue 19 Jul to 08:07 on Wed 20 Jul.", "fact": "1921-07-18T21:57:35Z → 1921-07-20T00:07:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:19 on the 18th, 18:56–20:19 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 83 minutes on the 18th and 84 of 84 on the 19th.", "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 34687 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Fuzhou, 1921: Tuesday 19 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": "1921-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Śiva Śayanotsava 1921 falls on Tuesday 19 July. Pūrṇimā runs from 05:58 on Tue 19 Jul to 08:07 on Wed 20 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-20", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 152, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-07-19T05:57:35+08:00", "utc": "1921-07-18T21:57:35Z", "ms": -1529114544742.7883 }, "end": { "local": "1921-07-20T08:07:20+08:00", "utc": "1921-07-20T00:07:20Z", "ms": -1529020360083.929 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1921-07-19T05:57:35+08:00", "utc": "1921-07-18T21:57:35Z", "ms": -1529114544742.7883 }, "end": { "local": "1921-07-20T08:07:20+08:00", "utc": "1921-07-20T00:07:20Z", "ms": -1529020360083.929 } }, "kaala": "udaya-3", "days": [ { "local_date": "1921-07-19", "window": { "start": { "local": "1921-07-19T05:21:40+08:00", "utc": "1921-07-18T21:21:40Z", "ms": -1529116700226.7708 }, "end": { "local": "1921-07-19T08:04:28+08:00", "utc": "1921-07-19T00:04:28Z", "ms": -1529106931604.764 } }, "covered_min": 127, "window_min": 163, "qualifies": false }, { "local_date": "1921-07-20", "window": { "start": { "local": "1921-07-20T05:22:09+08:00", "utc": "1921-07-19T21:22:09Z", "ms": -1529030271107.6506 }, "end": { "local": "1921-07-20T08:04:47+08:00", "utc": "1921-07-20T00:04:47Z", "ms": -1529020512581.4653 } }, "covered_min": 163, "window_min": 163, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:58 on Tue 19 Jul to 08:07 on Wed 20 Jul.", "fact": "1921-07-18T21:57:35Z → 1921-07-20T00:07:20Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:22–08:04 on the 19th, 05:22–08:05 on the 20th.", "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 127 of 163 minutes on the 19th and 163 of 163 on the 20th.", "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 152 s < 300 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Fuzhou, 1921: Wednesday 20 July.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "vyasa-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "udaya-3", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-07-20", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-20", "confidence": "boundary" } ], "quote": "In Fuzhou, Vyāsa Pūjā 1921 falls on Wednesday 20 July. Pūrṇimā runs from 05:58 on Tue 19 Jul to 08:07 on Wed 20 Jul and covers all of the first three muhūrtas after sunrise that morning. It is 2 min 32 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26465, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1921-07-21T10:26:30+08:00", "utc": "1921-07-21T02:26:30Z", "ms": -1528925609543.7666 }, "end": { "local": "1921-07-22T12:51:07+08:00", "utc": "1921-07-22T04:51:07Z", "ms": -1528830533466.093 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-07-21T10:26:30+08:00", "utc": "1921-07-21T02:26:30Z", "ms": -1528925609543.7666 }, "end": { "local": "1921-07-22T12:51:07+08:00", "utc": "1921-07-22T04:51:07Z", "ms": -1528830533466.093 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-07-21", "window": { "start": { "local": "1921-07-21T19:35:26+08:00", "utc": "1921-07-21T11:35:26Z", "ms": -1528892673890.5583 }, "end": { "local": "1921-07-21T19:35:26+08:00", "utc": "1921-07-21T11:35:26Z", "ms": -1528892673890.5583 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-07-22", "window": { "start": { "local": "1921-07-22T20:12:12+08:00", "utc": "1921-07-22T12:12:12Z", "ms": -1528804068039.3276 }, "end": { "local": "1921-07-22T20:12:12+08:00", "utc": "1921-07-22T12:12:12Z", "ms": -1528804068039.3276 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 10:27 on Thu 21 Jul to 12:51 on Fri 22 Jul.", "fact": "1921-07-21T02:26:30Z → 1921-07-22T04:51:07Z" }, { "step": "kaala", "text": "Moonrise is at 19:35 on the 21st and 20:12 on the 22nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 21st and is not on the 22nd.", "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 26465 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Fuzhou, 1921: Thursday 21 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": "1921-07-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Aśūnya Śayana Vrata (Āṣāḍha) 1921 falls on Thursday 21 July. Dvitīyā runs from 10:27 on Thu 21 Jul to 12:51 on Fri 22 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-07-23", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13759, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-07-23T15:15:44+08:00", "utc": "1921-07-23T07:15:44Z", "ms": -1528735456453.5928 }, "end": { "local": "1921-07-24T17:33:04+08:00", "utc": "1921-07-24T09:33:04Z", "ms": -1528640816387.1216 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-07-23T15:15:44+08:00", "utc": "1921-07-23T07:15:44Z", "ms": -1528735456453.5928 }, "end": { "local": "1921-07-24T17:33:04+08:00", "utc": "1921-07-24T09:33:04Z", "ms": -1528640816387.1216 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-07-23", "window": { "start": { "local": "1921-07-23T20:47:35+08:00", "utc": "1921-07-23T12:47:35Z", "ms": -1528715544904.16 }, "end": { "local": "1921-07-23T20:47:35+08:00", "utc": "1921-07-23T12:47:35Z", "ms": -1528715544904.16 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-07-24", "window": { "start": { "local": "1921-07-24T21:22:22+08:00", "utc": "1921-07-24T13:22:22Z", "ms": -1528627057747.6401 }, "end": { "local": "1921-07-24T21:22:22+08:00", "utc": "1921-07-24T13:22:22Z", "ms": -1528627057747.6401 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:16 on Sat 23 Jul to 17:33 on Sun 24 Jul.", "fact": "1921-07-23T07:15:44Z → 1921-07-24T09:33:04Z" }, { "step": "kaala", "text": "Moonrise is at 20:48 on the 23rd and 21:22 on the 24th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 23rd and is not on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13759 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Saturday 23 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": "1921-07-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-23", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Saturday 23 July. Caturthī runs from 15:16 on Sat 23 Jul to 17:33 on Sun 24 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-07-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ekadashi?on=1921-07-31", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-07-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32743, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-07-30T20:21:55+08:00", "utc": "1921-07-30T12:21:55Z", "ms": -1528112285286.257 }, "end": { "local": "1921-07-31T18:11:08+08:00", "utc": "1921-07-31T10:11:08Z", "ms": -1528033731508.231 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-07-30T20:21:55+08:00", "utc": "1921-07-30T12:21:55Z", "ms": -1528112285286.257 }, "end": { "local": "1921-07-31T18:11:08+08:00", "utc": "1921-07-31T10:11:08Z", "ms": -1528033731508.231 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-07-31", "window": { "start": { "local": "1921-07-31T05:27:38+08:00", "utc": "1921-07-30T21:27:38Z", "ms": -1528079542389.6885 }, "end": { "local": "1921-07-31T05:27:38+08:00", "utc": "1921-07-30T21:27:38Z", "ms": -1528079542389.6885 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-08-01", "window": { "start": { "local": "1921-08-01T05:28:08+08:00", "utc": "1921-07-31T21:28:08Z", "ms": -1527993112234.818 }, "end": { "local": "1921-08-01T05:28:08+08:00", "utc": "1921-07-31T21:28:08Z", "ms": -1527993112234.818 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:22 on Sat 30 Jul to 18:11 on Sun 31 Jul.", "fact": "1921-07-30T12:21:55Z → 1921-07-31T10:11:08Z" }, { "step": "kaala", "text": "Sunrise is at 05:28 on the 31st and 05:28 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 31st and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32743 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Fuzhou, 1921: Sunday 31 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": "1921-07-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-07-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Kāmikā Ekādaśī 1921 falls on Sunday 31 July. Ekādaśī runs from 20:22 on Sat 30 Jul to 18:11 on Sun 31 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-07-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-08-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12570, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-08-01T15:19:58+08:00", "utc": "1921-08-01T07:19:58Z", "ms": -1527957601638.2202 }, "end": { "local": "1921-08-02T11:56:59+08:00", "utc": "1921-08-02T03:56:59Z", "ms": -1527883381160.8408 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-08-01T15:19:58+08:00", "utc": "1921-08-01T07:19:58Z", "ms": -1527957601638.2202 }, "end": { "local": "1921-08-02T11:56:59+08:00", "utc": "1921-08-02T03:56:59Z", "ms": -1527883381160.8408 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-08-01", "window": { "start": { "local": "1921-08-01T18:49:28+08:00", "utc": "1921-08-01T10:49:28Z", "ms": -1527945031546.8184 }, "end": { "local": "1921-08-01T20:14:42+08:00", "utc": "1921-08-01T12:14:42Z", "ms": -1527939918289.4858 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "1921-08-02", "window": { "start": { "local": "1921-08-02T18:48:51+08:00", "utc": "1921-08-02T10:48:51Z", "ms": -1527858668657.35 }, "end": { "local": "1921-08-02T20:14:14+08:00", "utc": "1921-08-02T12:14:14Z", "ms": -1527853546443.8425 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:20 on Mon 1 Aug to 11:57 on Tue 2 Aug.", "fact": "1921-08-01T07:19:58Z → 1921-08-02T03:56:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:49–20:15 on the 1st, 18:49–20:14 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 85 of 85 minutes on the 1st and 0 of 85 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12570 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Monday 1 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": "1921-08-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Monday 1 August. Trayodaśī runs from 15:20 on Mon 1 Aug to 11:57 on Tue 2 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-08-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-08-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27560, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-08-02T11:56:59+08:00", "utc": "1921-08-02T03:56:59Z", "ms": -1527883381160.8408 }, "end": { "local": "1921-08-03T08:12:20+08:00", "utc": "1921-08-03T00:12:20Z", "ms": -1527810460461.5312 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-08-02T11:56:59+08:00", "utc": "1921-08-02T03:56:59Z", "ms": -1527883381160.8408 }, "end": { "local": "1921-08-03T08:12:20+08:00", "utc": "1921-08-03T00:12:20Z", "ms": -1527810460461.5312 } }, "kaala": "nishita", "days": [ { "local_date": "1921-08-01", "window": { "start": { "local": "1921-08-01T23:45:03+08:00", "utc": "1921-08-01T15:45:03Z", "ms": -1527927296831.8213 }, "end": { "local": "1921-08-02T00:33:03+08:00", "utc": "1921-08-01T16:33:03Z", "ms": -1527924416831.8213 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-08-02", "window": { "start": { "local": "1921-08-02T23:45:00+08:00", "utc": "1921-08-02T15:45:00Z", "ms": -1527840900356.6968 }, "end": { "local": "1921-08-03T00:33:00+08:00", "utc": "1921-08-02T16:33:00Z", "ms": -1527838020356.6968 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:57 on Tue 2 Aug to 08:12 on Wed 3 Aug.", "fact": "1921-08-02T03:56:59Z → 1921-08-03T00:12:20Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:45–00:33 on the 1st, 23:45–00:33 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "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 27560 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Tuesday 2 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": "1921-08-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Tuesday 2 August. Caturdaśī runs from 11:57 on Tue 2 Aug to 08:12 on Wed 3 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-08-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17223, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1921-08-05T20:39:48+08:00", "utc": "1921-08-05T12:39:48Z", "ms": -1527592811666.1501 }, "end": { "local": "1921-08-06T17:19:27+08:00", "utc": "1921-08-06T09:19:27Z", "ms": -1527518432635.1628 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-08-05T20:39:48+08:00", "utc": "1921-08-05T12:39:48Z", "ms": -1527592811666.1501 }, "end": { "local": "1921-08-06T17:19:27+08:00", "utc": "1921-08-06T09:19:27Z", "ms": -1527518432635.1628 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-08-05", "window": { "start": { "local": "1921-08-05T11:44:31+08:00", "utc": "1921-08-05T03:44:31Z", "ms": -1527624929436.073 }, "end": { "local": "1921-08-05T12:32:31+08:00", "utc": "1921-08-05T04:32:31Z", "ms": -1527622049436.073 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-08-06", "window": { "start": { "local": "1921-08-06T11:44:25+08:00", "utc": "1921-08-06T03:44:25Z", "ms": -1527538535318.88 }, "end": { "local": "1921-08-06T12:32:25+08:00", "utc": "1921-08-06T04:32:25Z", "ms": -1527535655318.88 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 20:40 on Fri 5 Aug to 17:19 on Sat 6 Aug.", "fact": "1921-08-05T12:39:48Z → 1921-08-06T09:19:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 5th, 11:44–12:32 on the 6th.", "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 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17223 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Fuzhou, 1921: Saturday 6 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": "1921-08-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Madhusravā Tṛtīyā (Hariyali Teej) 1921 falls on Saturday 6 August. Tṛtīyā runs from 20:40 on Fri 5 Aug to 17:19 on Sat 6 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-08-07", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7104, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-08-06T17:19:27+08:00", "utc": "1921-08-06T09:19:27Z", "ms": -1527518432635.1628 }, "end": { "local": "1921-08-07T14:30:42+08:00", "utc": "1921-08-07T06:30:42Z", "ms": -1527442157758.3435 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-08-06T17:19:27+08:00", "utc": "1921-08-06T09:19:27Z", "ms": -1527518432635.1628 }, "end": { "local": "1921-08-07T14:30:42+08:00", "utc": "1921-08-07T06:30:42Z", "ms": -1527442157758.3435 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-08-06", "window": { "start": { "local": "1921-08-06T11:44:25+08:00", "utc": "1921-08-06T03:44:25Z", "ms": -1527538535318.88 }, "end": { "local": "1921-08-06T12:32:25+08:00", "utc": "1921-08-06T04:32:25Z", "ms": -1527535655318.88 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-08-07", "window": { "start": { "local": "1921-08-07T11:44:18+08:00", "utc": "1921-08-07T03:44:18Z", "ms": -1527452141805.2651 }, "end": { "local": "1921-08-07T12:32:18+08:00", "utc": "1921-08-07T04:32:18Z", "ms": -1527449261805.2651 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:19 on Sat 6 Aug to 14:31 on Sun 7 Aug.", "fact": "1921-08-06T09:19:27Z → 1921-08-07T06:30:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 6th, 11:44–12:32 on the 7th.", "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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7104 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 1921: Sunday 7 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": "1921-08-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 1921 falls on Sunday 7 August. Caturthī runs from 17:19 on Sat 6 Aug to 14:31 on Sun 7 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-08-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 671, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1921-08-07T14:30:42+08:00", "utc": "1921-08-07T06:30:42Z", "ms": -1527442157758.3435 }, "end": { "local": "1921-08-08T12:21:00+08:00", "utc": "1921-08-08T04:21:00Z", "ms": -1527363539752.247 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-08-07T14:30:42+08:00", "utc": "1921-08-07T06:30:42Z", "ms": -1527442157758.3435 }, "end": { "local": "1921-08-08T12:21:00+08:00", "utc": "1921-08-08T04:21:00Z", "ms": -1527363539752.247 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-08-07", "window": { "start": { "local": "1921-08-07T11:44:18+08:00", "utc": "1921-08-07T03:44:18Z", "ms": -1527452141805.2651 }, "end": { "local": "1921-08-07T12:32:18+08:00", "utc": "1921-08-07T04:32:18Z", "ms": -1527449261805.2651 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-08-08", "window": { "start": { "local": "1921-08-08T11:44:11+08:00", "utc": "1921-08-08T03:44:11Z", "ms": -1527365748894.7427 }, "end": { "local": "1921-08-08T12:32:11+08:00", "utc": "1921-08-08T04:32:11Z", "ms": -1527362868894.7427 } }, "covered_min": 37, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 14:31 on Sun 7 Aug to 12:21 on Mon 8 Aug.", "fact": "1921-08-07T06:30:42Z → 1921-08-08T04:21:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 7th, 11:44–12:32 on the 8th.", "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 7th and 37 of 48 on the 8th.", "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 671 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Fuzhou, 1921: Monday 8 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": "1921-08-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Nāga Pañcamī 1921 falls on Monday 8 August. Pañcamī runs from 14:31 on Sun 7 Aug to 12:21 on Mon 8 Aug and covers 37 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-08-14", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24878, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-08-13T12:28:39+08:00", "utc": "1921-08-13T04:28:39Z", "ms": -1526931080594.2034 }, "end": { "local": "1921-08-14T14:16:06+08:00", "utc": "1921-08-14T06:16:06Z", "ms": -1526838234274.11 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-08-13T12:28:39+08:00", "utc": "1921-08-13T04:28:39Z", "ms": -1526931080594.2034 }, "end": { "local": "1921-08-14T14:16:06+08:00", "utc": "1921-08-14T06:16:06Z", "ms": -1526838234274.11 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-08-13", "window": { "start": { "local": "1921-08-13T05:34:02+08:00", "utc": "1921-08-12T21:34:02Z", "ms": -1526955958434.65 }, "end": { "local": "1921-08-13T05:34:02+08:00", "utc": "1921-08-12T21:34:02Z", "ms": -1526955958434.65 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-08-14", "window": { "start": { "local": "1921-08-14T05:34:30+08:00", "utc": "1921-08-13T21:34:30Z", "ms": -1526869530027.799 }, "end": { "local": "1921-08-14T05:34:30+08:00", "utc": "1921-08-13T21:34:30Z", "ms": -1526869530027.799 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:29 on Sat 13 Aug to 14:16 on Sun 14 Aug.", "fact": "1921-08-13T04:28:39Z → 1921-08-14T06:16:06Z" }, { "step": "kaala", "text": "Sunrise is at 05:34 on the 13th and 05:34 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 13th and is on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24878 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Fuzhou, 1921: Sunday 14 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": "1921-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Putradā Ekādaśī 1921 falls on Sunday 14 August. Ekādaśī runs from 12:29 on Sat 13 Aug to 14:16 on Sun 14 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-08-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6290, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1921-08-14T14:16:06+08:00", "utc": "1921-08-14T06:16:06Z", "ms": -1526838234274.11 }, "end": { "local": "1921-08-15T16:22:20+08:00", "utc": "1921-08-15T08:22:20Z", "ms": -1526744260360.322 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-08-14T14:16:06+08:00", "utc": "1921-08-14T06:16:06Z", "ms": -1526838234274.11 }, "end": { "local": "1921-08-15T16:22:20+08:00", "utc": "1921-08-15T08:22:20Z", "ms": -1526744260360.322 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-08-14", "window": { "start": { "local": "1921-08-14T11:43:16+08:00", "utc": "1921-08-14T03:43:16Z", "ms": -1526847403841.9575 }, "end": { "local": "1921-08-14T12:31:16+08:00", "utc": "1921-08-14T04:31:16Z", "ms": -1526844523841.9575 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-08-15", "window": { "start": { "local": "1921-08-15T11:43:05+08:00", "utc": "1921-08-15T03:43:05Z", "ms": -1526761014995.5415 }, "end": { "local": "1921-08-15T12:31:05+08:00", "utc": "1921-08-15T04:31:05Z", "ms": -1526758134995.5415 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 14:16 on Sun 14 Aug to 16:22 on Mon 15 Aug.", "fact": "1921-08-14T06:16:06Z → 1921-08-15T08:22:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 14th, 11:43–12:31 on the 15th.", "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 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6290 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Fuzhou, 1921: Monday 15 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": "1921-08-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Dāmodara Dvādaśī 1921 falls on Monday 15 August. Dvādaśī runs from 14:16 on Sun 14 Aug to 16:22 on Mon 15 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-08-15", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-15", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 114, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-08-15T16:22:20+08:00", "utc": "1921-08-15T08:22:20Z", "ms": -1526744260360.322 }, "end": { "local": "1921-08-16T18:40:14+08:00", "utc": "1921-08-16T10:40:14Z", "ms": -1526649585982.2502 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-08-15T16:22:20+08:00", "utc": "1921-08-15T08:22:20Z", "ms": -1526744260360.322 }, "end": { "local": "1921-08-16T18:40:14+08:00", "utc": "1921-08-16T10:40:14Z", "ms": -1526649585982.2502 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-08-15", "window": { "start": { "local": "1921-08-15T18:39:12+08:00", "utc": "1921-08-15T10:39:12Z", "ms": -1526736048173.222 }, "end": { "local": "1921-08-15T20:06:42+08:00", "utc": "1921-08-15T12:06:42Z", "ms": -1526730798257.5774 } }, "covered_min": 87, "window_min": 87, "qualifies": true }, { "local_date": "1921-08-16", "window": { "start": { "local": "1921-08-16T18:38:20+08:00", "utc": "1921-08-16T10:38:20Z", "ms": -1526649699577.833 }, "end": { "local": "1921-08-16T20:06:01+08:00", "utc": "1921-08-16T12:06:01Z", "ms": -1526644439099.6902 } }, "covered_min": 2, "window_min": 88, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:22 on Mon 15 Aug to 18:40 on Tue 16 Aug.", "fact": "1921-08-15T08:22:20Z → 1921-08-16T10:40:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:39–20:07 on the 15th, 18:38–20:06 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 87 of 87 minutes on the 15th and 2 of 88 on the 16th.", "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 114 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Monday 15 August.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-08-15", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-15", "confidence": "boundary" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Monday 15 August. Trayodaśī runs from 16:22 on Mon 15 Aug to 18:40 on Tue 16 Aug and covers all of pradoṣa that evening. It also reaches the next evening for 2 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 1 min 54 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-08-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16785, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-08-17T21:03:48+08:00", "utc": "1921-08-17T13:03:48Z", "ms": -1526554571852.8364 }, "end": { "local": "1921-08-18T23:27:59+08:00", "utc": "1921-08-18T15:27:59Z", "ms": -1526459521142.5945 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1921-08-18T10:16:06+08:00", "utc": "1921-08-18T02:16:06Z", "ms": -1526507033610.8 }, "end": { "local": "1921-08-18T23:27:59+08:00", "utc": "1921-08-18T15:27:59Z", "ms": -1526459521142.5945 } }, "kaala": "day", "days": [ { "local_date": "1921-08-17", "window": { "start": { "local": "1921-08-17T05:35:54+08:00", "utc": "1921-08-16T21:35:54Z", "ms": -1526610245991.7622 }, "end": { "local": "1921-08-18T05:36:22+08:00", "utc": "1921-08-17T21:36:22Z", "ms": -1526523818374.266 } }, "covered_min": 0, "window_min": 1440, "qualifies": false }, { "local_date": "1921-08-18", "window": { "start": { "local": "1921-08-18T05:36:22+08:00", "utc": "1921-08-17T21:36:22Z", "ms": -1526523818374.266 }, "end": { "local": "1921-08-19T05:36:49+08:00", "utc": "1921-08-18T21:36:49Z", "ms": -1526437390951.17 } }, "covered_min": 792, "window_min": 1440, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:04 on Wed 17 Aug to 23:28 on Thu 18 Aug. Its second half begins at 10:16 on Thu 18 Aug.", "fact": "1921-08-17T13:03:48Z → 1921-08-18T15:27:59Z · second half from 1921-08-18T02:16:06Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:36 on the 17th, and from 05:36 on the 18th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The second half of Pūrṇimā must be present during the day. It covers 0 of 1440 minutes on the 17th and 792 of 1440 on the 18th.", "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 16785 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Fuzhou, 1921: Thursday 18 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": "1921-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Rakṣā Bandhana (Rakhi) 1921 falls on Thursday 18 August. The second half of Pūrṇimā runs from 10:16 on Thu 18 Aug to 23:28 on Thu 18 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30787, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-08-17T21:03:48+08:00", "utc": "1921-08-17T13:03:48Z", "ms": -1526554571852.8364 }, "end": { "local": "1921-08-18T23:27:59+08:00", "utc": "1921-08-18T15:27:59Z", "ms": -1526459521142.5945 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1921-08-17T21:03:48+08:00", "utc": "1921-08-17T13:03:48Z", "ms": -1526554571852.8364 }, "end": { "local": "1921-08-18T23:27:59+08:00", "utc": "1921-08-18T15:27:59Z", "ms": -1526459521142.5945 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-08-17", "window": { "start": { "local": "1921-08-17T11:42:41+08:00", "utc": "1921-08-17T03:42:41Z", "ms": -1526588238918.5942 }, "end": { "local": "1921-08-17T12:30:41+08:00", "utc": "1921-08-17T04:30:41Z", "ms": -1526585358918.5942 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-08-18", "window": { "start": { "local": "1921-08-18T11:42:28+08:00", "utc": "1921-08-18T03:42:28Z", "ms": -1526501851662.669 }, "end": { "local": "1921-08-18T12:30:28+08:00", "utc": "1921-08-18T04:30:28Z", "ms": -1526498971662.669 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:04 on Wed 17 Aug to 23:28 on Thu 18 Aug.", "fact": "1921-08-17T13:03:48Z → 1921-08-18T15:27:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 17th, 11:42–12:30 on the 18th.", "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 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30787 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Fuzhou, 1921: Thursday 18 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": "1921-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Ṛṣi Tarpaṇa 1921 falls on Thursday 18 August. Pūrṇimā runs from 21:04 on Wed 17 Aug to 23:28 on Thu 18 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25138, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1921-08-20T01:48:09+08:00", "utc": "1921-08-19T17:48:09Z", "ms": -1526364710610.952 }, "end": { "local": "1921-08-21T03:59:31+08:00", "utc": "1921-08-20T19:59:31Z", "ms": -1526270429443.4358 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-20T01:48:09+08:00", "utc": "1921-08-19T17:48:09Z", "ms": -1526364710610.952 }, "end": { "local": "1921-08-21T03:59:31+08:00", "utc": "1921-08-20T19:59:31Z", "ms": -1526270429443.4358 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-08-19", "window": { "start": { "local": "1921-08-19T18:49:11+08:00", "utc": "1921-08-19T10:49:11Z", "ms": -1526389848682.0867 }, "end": { "local": "1921-08-19T18:49:11+08:00", "utc": "1921-08-19T10:49:11Z", "ms": -1526389848682.0867 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-08-20", "window": { "start": { "local": "1921-08-20T19:24:21+08:00", "utc": "1921-08-20T11:24:21Z", "ms": -1526301339495.151 }, "end": { "local": "1921-08-20T19:24:21+08:00", "utc": "1921-08-20T11:24:21Z", "ms": -1526301339495.151 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 01:48 on Sat 20 Aug to 04:00 on Sun 21 Aug.", "fact": "1921-08-19T17:48:09Z → 1921-08-20T19:59:31Z" }, { "step": "kaala", "text": "Moonrise is at 18:49 on the 19th and 19:24 on the 20th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 19th and is on the 20th.", "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 25138 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Fuzhou, 1921: Saturday 20 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": "1921-08-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Aśūnya Śayana Vrata 1921 falls on Saturday 20 August. Dvitīyā runs from 01:48 on Sat 20 Aug to 04:00 on Sun 21 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20702, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1921-08-21T03:59:31+08:00", "utc": "1921-08-20T19:59:31Z", "ms": -1526270429443.4358 }, "end": { "local": "1921-08-22T05:56:30+08:00", "utc": "1921-08-21T21:56:30Z", "ms": -1526177009886.9355 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-21T03:59:31+08:00", "utc": "1921-08-20T19:59:31Z", "ms": -1526270429443.4358 }, "end": { "local": "1921-08-22T05:56:30+08:00", "utc": "1921-08-21T21:56:30Z", "ms": -1526177009886.9355 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-08-21", "window": { "start": { "local": "1921-08-21T11:41:47+08:00", "utc": "1921-08-21T03:41:47Z", "ms": -1526242692858.418 }, "end": { "local": "1921-08-21T12:29:47+08:00", "utc": "1921-08-21T04:29:47Z", "ms": -1526239812858.418 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-08-22", "window": { "start": { "local": "1921-08-22T11:41:32+08:00", "utc": "1921-08-22T03:41:32Z", "ms": -1526156307528.6426 }, "end": { "local": "1921-08-22T12:29:32+08:00", "utc": "1921-08-22T04:29:32Z", "ms": -1526153427528.6426 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 04:00 on Sun 21 Aug to 05:57 on Mon 22 Aug.", "fact": "1921-08-20T19:59:31Z → 1921-08-21T21:56:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 21st, 11:42–12:30 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20702 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Fuzhou, 1921: Sunday 21 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": "1921-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Kajjalī Tṛtīyā (Kajari Teej) 1921 falls on Sunday 21 August. Tṛtīyā runs from 04:00 on Sun 21 Aug to 05:57 on Mon 22 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30274, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-08-22T05:56:30+08:00", "utc": "1921-08-21T21:56:30Z", "ms": -1526177009886.9355 }, "end": { "local": "1921-08-23T07:32:44+08:00", "utc": "1921-08-22T23:32:44Z", "ms": -1526084836136.666 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-22T05:56:30+08:00", "utc": "1921-08-21T21:56:30Z", "ms": -1526177009886.9355 }, "end": { "local": "1921-08-23T07:32:44+08:00", "utc": "1921-08-22T23:32:44Z", "ms": -1526084836136.666 } }, "kaala": "sayahna", "days": [ { "local_date": "1921-08-22", "window": { "start": { "local": "1921-08-22T15:57:58+08:00", "utc": "1921-08-22T07:57:58Z", "ms": -1526140922158.1106 }, "end": { "local": "1921-08-22T18:32:55+08:00", "utc": "1921-08-22T10:32:55Z", "ms": -1526131625244.4226 } }, "covered_min": 155, "window_min": 155, "qualifies": true }, { "local_date": "1921-08-23", "window": { "start": { "local": "1921-08-23T15:57:18+08:00", "utc": "1921-08-23T07:57:18Z", "ms": -1526054562350.5386 }, "end": { "local": "1921-08-23T18:31:58+08:00", "utc": "1921-08-23T10:31:58Z", "ms": -1526045282156.0881 } }, "covered_min": 0, "window_min": 155, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:57 on Mon 22 Aug to 07:33 on Tue 23 Aug.", "fact": "1921-08-21T21:56:30Z → 1921-08-22T23:32:44Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:58–18:33 on the 22nd, 15:57–18:32 on the 23rd.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 155 of 155 minutes on the 22nd and 0 of 155 on the 23rd.", "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 30274 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Fuzhou, 1921: Monday 22 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": "1921-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Bahulā Caturthī 1921 falls on Monday 22 August. Caturthī runs from 05:57 on Mon 22 Aug to 07:33 on Tue 23 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-08-22", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35826, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-08-22T05:56:30+08:00", "utc": "1921-08-21T21:56:30Z", "ms": -1526177009886.9355 }, "end": { "local": "1921-08-23T07:32:44+08:00", "utc": "1921-08-22T23:32:44Z", "ms": -1526084836136.666 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-22T05:56:30+08:00", "utc": "1921-08-21T21:56:30Z", "ms": -1526177009886.9355 }, "end": { "local": "1921-08-23T07:32:44+08:00", "utc": "1921-08-22T23:32:44Z", "ms": -1526084836136.666 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-08-21", "window": { "start": { "local": "1921-08-21T19:59:24+08:00", "utc": "1921-08-21T11:59:24Z", "ms": -1526212836138.611 }, "end": { "local": "1921-08-21T19:59:24+08:00", "utc": "1921-08-21T11:59:24Z", "ms": -1526212836138.611 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-08-22", "window": { "start": { "local": "1921-08-22T20:35:11+08:00", "utc": "1921-08-22T12:35:11Z", "ms": -1526124289436.1536 }, "end": { "local": "1921-08-22T20:35:11+08:00", "utc": "1921-08-22T12:35:11Z", "ms": -1526124289436.1536 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:57 on Mon 22 Aug to 07:33 on Tue 23 Aug.", "fact": "1921-08-21T21:56:30Z → 1921-08-22T23:32:44Z" }, { "step": "kaala", "text": "Moonrise is at 19:59 on the 21st and 20:35 on the 22nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 21st and is on the 22nd.", "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 35826 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Monday 22 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": "1921-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Monday 22 August. Caturthī runs from 05:57 on Mon 22 Aug to 07:33 on Tue 23 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-08-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8720, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1921-08-24T08:41:16+08:00", "utc": "1921-08-24T00:41:16Z", "ms": -1525994324078.5327 }, "end": { "local": "1921-08-25T09:15:26+08:00", "utc": "1921-08-25T01:15:26Z", "ms": -1525905874162.5808 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-24T08:41:16+08:00", "utc": "1921-08-24T00:41:16Z", "ms": -1525994324078.5327 }, "end": { "local": "1921-08-25T09:15:26+08:00", "utc": "1921-08-25T01:15:26Z", "ms": -1525905874162.5808 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-08-24", "window": { "start": { "local": "1921-08-24T11:41:02+08:00", "utc": "1921-08-24T03:41:02Z", "ms": -1525983538183.233 }, "end": { "local": "1921-08-24T12:29:02+08:00", "utc": "1921-08-24T04:29:02Z", "ms": -1525980658183.233 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-08-25", "window": { "start": { "local": "1921-08-25T11:40:46+08:00", "utc": "1921-08-25T03:40:46Z", "ms": -1525897154135.6904 }, "end": { "local": "1921-08-25T12:28:46+08:00", "utc": "1921-08-25T04:28:46Z", "ms": -1525894274135.6904 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 08:41 on Wed 24 Aug to 09:15 on Thu 25 Aug.", "fact": "1921-08-24T00:41:16Z → 1921-08-25T01:15:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 24th, 11:41–12:29 on the 25th.", "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 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8720 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Fuzhou, 1921: Wednesday 24 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "hala-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Hala sasthi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Hala Ṣaṣṭhī 1921 falls on Wednesday 24 August. Ṣaṣṭhī runs from 08:41 on Wed 24 Aug to 09:15 on Thu 25 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8720, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1921-08-25T09:15:26+08:00", "utc": "1921-08-25T01:15:26Z", "ms": -1525905874162.5808 }, "end": { "local": "1921-08-26T09:09:50+08:00", "utc": "1921-08-26T01:09:50Z", "ms": -1525819810105.7974 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-25T09:15:26+08:00", "utc": "1921-08-25T01:15:26Z", "ms": -1525905874162.5808 }, "end": { "local": "1921-08-26T09:09:50+08:00", "utc": "1921-08-26T01:09:50Z", "ms": -1525819810105.7974 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-08-25", "window": { "start": { "local": "1921-08-25T11:40:46+08:00", "utc": "1921-08-25T03:40:46Z", "ms": -1525897154135.6904 }, "end": { "local": "1921-08-25T12:28:46+08:00", "utc": "1921-08-25T04:28:46Z", "ms": -1525894274135.6904 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-08-26", "window": { "start": { "local": "1921-08-26T11:40:30+08:00", "utc": "1921-08-26T03:40:30Z", "ms": -1525810770483.6104 }, "end": { "local": "1921-08-26T12:28:30+08:00", "utc": "1921-08-26T04:28:30Z", "ms": -1525807890483.6104 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 09:15 on Thu 25 Aug to 09:10 on Fri 26 Aug.", "fact": "1921-08-25T01:15:26Z → 1921-08-26T01:09:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 25th, 11:40–12:28 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8720 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Fuzhou, 1921: Thursday 25 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitala-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 7 Sitala saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Śītalā Saptamī 1921 falls on Thursday 25 August. Saptamī runs from 09:15 on Thu 25 Aug to 09:10 on Fri 26 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28355, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1921-08-26T09:09:50+08:00", "utc": "1921-08-26T01:09:50Z", "ms": -1525819810105.7974 }, "end": { "local": "1921-08-27T08:21:18+08:00", "utc": "1921-08-27T00:21:18Z", "ms": -1525736322117.9749 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-26T09:09:50+08:00", "utc": "1921-08-26T01:09:50Z", "ms": -1525819810105.7974 }, "end": { "local": "1921-08-27T08:21:18+08:00", "utc": "1921-08-27T00:21:18Z", "ms": -1525736322117.9749 } }, "kaala": "nishita", "days": [ { "local_date": "1921-08-25", "window": { "start": { "local": "1921-08-25T23:40:59+08:00", "utc": "1921-08-25T15:40:59Z", "ms": -1525853941042.078 }, "end": { "local": "1921-08-26T00:28:59+08:00", "utc": "1921-08-25T16:28:59Z", "ms": -1525851061042.078 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-08-26", "window": { "start": { "local": "1921-08-26T23:40:43+08:00", "utc": "1921-08-26T15:40:43Z", "ms": -1525767557466.924 }, "end": { "local": "1921-08-27T00:28:43+08:00", "utc": "1921-08-26T16:28:43Z", "ms": -1525764677466.924 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 09:10 on Fri 26 Aug to 08:21 on Sat 27 Aug.", "fact": "1921-08-26T01:09:50Z → 1921-08-27T00:21:18Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:41–00:29 on the 25th, 23:41–00:29 on the 26th.", "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 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28355 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Fuzhou, 1921: Friday 26 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "janmashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami." } ], "not_evaluated": "The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.", "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Janmāṣṭamī 1921 falls on Friday 26 August. Aṣṭamī runs from 09:10 on Fri 26 Aug to 08:21 on Sat 27 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-08-29", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3854, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-08-29T04:37:00+08:00", "utc": "1921-08-28T20:37:00Z", "ms": -1525576980311.3083 }, "end": { "local": "1921-08-30T01:49:07+08:00", "utc": "1921-08-29T17:49:07Z", "ms": -1525500652688.9963 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-29T04:37:00+08:00", "utc": "1921-08-28T20:37:00Z", "ms": -1525576980311.3083 }, "end": { "local": "1921-08-30T01:49:07+08:00", "utc": "1921-08-29T17:49:07Z", "ms": -1525500652688.9963 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-08-29", "window": { "start": { "local": "1921-08-29T05:41:14+08:00", "utc": "1921-08-28T21:41:14Z", "ms": -1525573126421.042 }, "end": { "local": "1921-08-29T05:41:14+08:00", "utc": "1921-08-28T21:41:14Z", "ms": -1525573126421.042 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-08-30", "window": { "start": { "local": "1921-08-30T05:41:39+08:00", "utc": "1921-08-29T21:41:39Z", "ms": -1525486700818.3071 }, "end": { "local": "1921-08-30T05:41:39+08:00", "utc": "1921-08-29T21:41:39Z", "ms": -1525486700818.3071 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:37 on Mon 29 Aug to 01:49 on Tue 30 Aug.", "fact": "1921-08-28T20:37:00Z → 1921-08-29T17:49:07Z" }, { "step": "kaala", "text": "Sunrise is at 05:41 on the 29th and 05:42 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3854 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Fuzhou, 1921: Monday 29 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": "1921-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Ajā Ekādaśī 1921 falls on Monday 29 August. Ekādaśī runs from 04:37 on Mon 29 Aug to 01:49 on Tue 30 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-08-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2073, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-08-31T18:58:33+08:00", "utc": "1921-08-31T10:58:33Z", "ms": -1525352486588.8345 }, "end": { "local": "1921-09-01T15:14:51+08:00", "utc": "1921-09-01T07:14:51Z", "ms": -1525279509226.0688 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-31T18:58:33+08:00", "utc": "1921-08-31T10:58:33Z", "ms": -1525352486588.8345 }, "end": { "local": "1921-09-01T15:14:51+08:00", "utc": "1921-09-01T07:14:51Z", "ms": -1525279509226.0688 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-08-31", "window": { "start": { "local": "1921-08-31T18:24:00+08:00", "utc": "1921-08-31T10:24:00Z", "ms": -1525354559893.3018 }, "end": { "local": "1921-08-31T19:54:28+08:00", "utc": "1921-08-31T11:54:28Z", "ms": -1525349131909.846 } }, "covered_min": 56, "window_min": 90, "qualifies": true }, { "local_date": "1921-09-01", "window": { "start": { "local": "1921-09-01T18:22:58+08:00", "utc": "1921-09-01T10:22:58Z", "ms": -1525268222049.2947 }, "end": { "local": "1921-09-01T19:53:38+08:00", "utc": "1921-09-01T11:53:38Z", "ms": -1525262782417.9595 } }, "covered_min": 0, "window_min": 91, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:59 on Wed 31 Aug to 15:15 on Thu 1 Sep.", "fact": "1921-08-31T10:58:33Z → 1921-09-01T07:14:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:24–19:54 on the 31st, 18:23–19:54 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 56 of 90 minutes on the 31st and 0 of 91 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2073 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Fuzhou, 1921: Wednesday 31 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Aghora Caturdaśī 1921 falls on Wednesday 31 August. Caturdaśī runs from 18:59 on Wed 31 Aug to 15:15 on Thu 1 Sep and covers 56 of 90 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-08-31", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2073, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-08-30T22:33:19+08:00", "utc": "1921-08-30T14:33:19Z", "ms": -1525426001437.321 }, "end": { "local": "1921-08-31T18:58:33+08:00", "utc": "1921-08-31T10:58:33Z", "ms": -1525352486588.8345 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-30T22:33:19+08:00", "utc": "1921-08-30T14:33:19Z", "ms": -1525426001437.321 }, "end": { "local": "1921-08-31T18:58:33+08:00", "utc": "1921-08-31T10:58:33Z", "ms": -1525352486588.8345 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-08-30", "window": { "start": { "local": "1921-08-30T18:25:02+08:00", "utc": "1921-08-30T10:25:02Z", "ms": -1525440898225.8887 }, "end": { "local": "1921-08-30T19:55:18+08:00", "utc": "1921-08-30T11:55:18Z", "ms": -1525435481842.6104 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "1921-08-31", "window": { "start": { "local": "1921-08-31T18:24:00+08:00", "utc": "1921-08-31T10:24:00Z", "ms": -1525354559893.3018 }, "end": { "local": "1921-08-31T19:54:28+08:00", "utc": "1921-08-31T11:54:28Z", "ms": -1525349131909.846 } }, "covered_min": 35, "window_min": 90, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:33 on Tue 30 Aug to 18:59 on Wed 31 Aug.", "fact": "1921-08-30T14:33:19Z → 1921-08-31T10:58:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:25–19:55 on the 30th, 18:24–19:54 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 0 of 90 minutes on the 30th and 35 of 90 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 2073 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Wednesday 31 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": "1921-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Wednesday 31 August. Trayodaśī runs from 22:33 on Tue 30 Aug to 18:59 on Wed 31 Aug and covers 35 of 90 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-08-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-08-31", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16842, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-08-31T18:58:33+08:00", "utc": "1921-08-31T10:58:33Z", "ms": -1525352486588.8345 }, "end": { "local": "1921-09-01T15:14:51+08:00", "utc": "1921-09-01T07:14:51Z", "ms": -1525279509226.0688 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-08-31T18:58:33+08:00", "utc": "1921-08-31T10:58:33Z", "ms": -1525352486588.8345 }, "end": { "local": "1921-09-01T15:14:51+08:00", "utc": "1921-09-01T07:14:51Z", "ms": -1525279509226.0688 } }, "kaala": "nishita", "days": [ { "local_date": "1921-08-31", "window": { "start": { "local": "1921-08-31T23:39:15+08:00", "utc": "1921-08-31T15:39:15Z", "ms": -1525335644955.3428 }, "end": { "local": "1921-09-01T00:27:15+08:00", "utc": "1921-08-31T16:27:15Z", "ms": -1525332764955.3428 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-09-01", "window": { "start": { "local": "1921-09-01T23:38:57+08:00", "utc": "1921-09-01T15:38:57Z", "ms": -1525249263431.7876 }, "end": { "local": "1921-09-02T00:26:57+08:00", "utc": "1921-09-01T16:26:57Z", "ms": -1525246383431.7876 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:59 on Wed 31 Aug to 15:15 on Thu 1 Sep.", "fact": "1921-08-31T10:58:33Z → 1921-09-01T07:14:51Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:39–00:27 on the 31st, 23:39–00:27 on the 1st.", "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 31st and 0 of 48 on the 1st.", "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 16842 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Wednesday 31 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": "1921-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-08-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Wednesday 31 August. Caturdaśī runs from 18:59 on Wed 31 Aug to 15:15 on Thu 1 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-08-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 347, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1921-09-02T11:32:38+08:00", "utc": "1921-09-02T03:32:38Z", "ms": -1525206441517.5427 }, "end": { "local": "1921-09-03T08:02:27+08:00", "utc": "1921-09-03T00:02:27Z", "ms": -1525132653476.5193 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-02T11:32:38+08:00", "utc": "1921-09-02T03:32:38Z", "ms": -1525206441517.5427 }, "end": { "local": "1921-09-03T08:02:27+08:00", "utc": "1921-09-03T00:02:27Z", "ms": -1525132653476.5193 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-09-02", "window": { "start": { "local": "1921-09-02T11:38:25+08:00", "utc": "1921-09-02T03:38:25Z", "ms": -1525206094743.7368 }, "end": { "local": "1921-09-02T12:26:25+08:00", "utc": "1921-09-02T04:26:25Z", "ms": -1525203214743.7368 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-09-03", "window": { "start": { "local": "1921-09-03T11:38:06+08:00", "utc": "1921-09-03T03:38:06Z", "ms": -1525119713742.0679 }, "end": { "local": "1921-09-03T12:26:06+08:00", "utc": "1921-09-03T04:26:06Z", "ms": -1525116833742.0679 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 11:33 on Fri 2 Sep to 08:02 on Sat 3 Sep.", "fact": "1921-09-02T03:32:38Z → 1921-09-03T00:02:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 2nd, 11:38–12:26 on the 3rd.", "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 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: purvaviddha → only-day · margin 347 s" }, { "step": "ruling", "text": "Rudra Vrata, Fuzhou, 1921: Friday 2 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": "1921-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Rudra Vrata 1921 falls on Friday 2 September. Pratipadā runs from 11:33 on Fri 2 Sep to 08:02 on Sat 3 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24206, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1921-09-04T04:54:21+08:00", "utc": "1921-09-03T20:54:21Z", "ms": -1525057539340.593 }, "end": { "local": "1921-09-05T02:17:33+08:00", "utc": "1921-09-04T18:17:33Z", "ms": -1524980546933.2163 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-04T04:54:21+08:00", "utc": "1921-09-03T20:54:21Z", "ms": -1525057539340.593 }, "end": { "local": "1921-09-05T02:17:33+08:00", "utc": "1921-09-04T18:17:33Z", "ms": -1524980546933.2163 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-09-04", "window": { "start": { "local": "1921-09-04T11:37:47+08:00", "utc": "1921-09-04T03:37:47Z", "ms": -1525033333016.3904 }, "end": { "local": "1921-09-04T12:25:47+08:00", "utc": "1921-09-04T04:25:47Z", "ms": -1525030453016.3904 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-09-05", "window": { "start": { "local": "1921-09-05T11:37:27+08:00", "utc": "1921-09-05T03:37:27Z", "ms": -1524946952553.791 }, "end": { "local": "1921-09-05T12:25:27+08:00", "utc": "1921-09-05T04:25:27Z", "ms": -1524944072553.791 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 04:54 on Sun 4 Sep to 02:18 on Mon 5 Sep.", "fact": "1921-09-03T20:54:21Z → 1921-09-04T18:17:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 4th, 11:37–12:25 on the 5th.", "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 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24206 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Fuzhou, 1921: Sunday 4 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": "1921-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Haritālikā Vrata (Hartalika Teej) 1921 falls on Sunday 4 September. Tṛtīyā runs from 04:54 on Sun 4 Sep to 02:18 on Mon 5 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33594, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-09-05T02:17:33+08:00", "utc": "1921-09-04T18:17:33Z", "ms": -1524980546933.2163 }, "end": { "local": "1921-09-06T00:19:48+08:00", "utc": "1921-09-05T16:19:48Z", "ms": -1524901212394.7131 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-05T02:17:33+08:00", "utc": "1921-09-04T18:17:33Z", "ms": -1524980546933.2163 }, "end": { "local": "1921-09-06T00:19:48+08:00", "utc": "1921-09-05T16:19:48Z", "ms": -1524901212394.7131 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-09-05", "window": { "start": { "local": "1921-09-05T11:37:27+08:00", "utc": "1921-09-05T03:37:27Z", "ms": -1524946952553.791 }, "end": { "local": "1921-09-05T12:25:27+08:00", "utc": "1921-09-05T04:25:27Z", "ms": -1524944072553.791 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-09-06", "window": { "start": { "local": "1921-09-06T11:37:08+08:00", "utc": "1921-09-06T03:37:08Z", "ms": -1524860572340.1365 }, "end": { "local": "1921-09-06T12:25:08+08:00", "utc": "1921-09-06T04:25:08Z", "ms": -1524857692340.1365 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:18 on Mon 5 Sep to 00:20 on Tue 6 Sep.", "fact": "1921-09-04T18:17:33Z → 1921-09-05T16:19:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 5th, 11:37–12:25 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33594 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Fuzhou, 1921: Monday 5 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": "1921-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaṇeśa Caturthī 1921 falls on Monday 5 September. Caturthī runs from 02:18 on Mon 5 Sep to 00:20 on Tue 6 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38492, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1921-09-06T00:19:48+08:00", "utc": "1921-09-05T16:19:48Z", "ms": -1524901212394.7131 }, "end": { "local": "1921-09-06T23:06:40+08:00", "utc": "1921-09-06T15:06:40Z", "ms": -1524819200080.623 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-06T00:19:48+08:00", "utc": "1921-09-05T16:19:48Z", "ms": -1524901212394.7131 }, "end": { "local": "1921-09-06T23:06:40+08:00", "utc": "1921-09-06T15:06:40Z", "ms": -1524819200080.623 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-09-05", "window": { "start": { "local": "1921-09-05T11:37:27+08:00", "utc": "1921-09-05T03:37:27Z", "ms": -1524946952553.791 }, "end": { "local": "1921-09-05T12:25:27+08:00", "utc": "1921-09-05T04:25:27Z", "ms": -1524944072553.791 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-09-06", "window": { "start": { "local": "1921-09-06T11:37:08+08:00", "utc": "1921-09-06T03:37:08Z", "ms": -1524860572340.1365 }, "end": { "local": "1921-09-06T12:25:08+08:00", "utc": "1921-09-06T04:25:08Z", "ms": -1524857692340.1365 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 00:20 on Tue 6 Sep to 23:07 on Tue 6 Sep.", "fact": "1921-09-05T16:19:48Z → 1921-09-06T15:06:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 5th, 11:37–12:25 on the 6th.", "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 5th and 48 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 38492 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Fuzhou, 1921: Tuesday 6 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": "1921-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Ṛṣi Pañcamī 1921 falls on Tuesday 6 September. Pañcamī runs from 00:20 on Tue 6 Sep to 23:07 on Tue 6 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36969, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1921-09-06T23:06:40+08:00", "utc": "1921-09-06T15:06:40Z", "ms": -1524819200080.623 }, "end": { "local": "1921-09-07T22:40:57+08:00", "utc": "1921-09-07T14:40:57Z", "ms": -1524734343172.7114 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-06T23:06:40+08:00", "utc": "1921-09-06T15:06:40Z", "ms": -1524819200080.623 }, "end": { "local": "1921-09-07T22:40:57+08:00", "utc": "1921-09-07T14:40:57Z", "ms": -1524734343172.7114 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-09-06", "window": { "start": { "local": "1921-09-06T11:37:08+08:00", "utc": "1921-09-06T03:37:08Z", "ms": -1524860572340.1365 }, "end": { "local": "1921-09-06T12:25:08+08:00", "utc": "1921-09-06T04:25:08Z", "ms": -1524857692340.1365 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-09-07", "window": { "start": { "local": "1921-09-07T11:36:48+08:00", "utc": "1921-09-07T03:36:48Z", "ms": -1524774192359.9429 }, "end": { "local": "1921-09-07T12:24:48+08:00", "utc": "1921-09-07T04:24:48Z", "ms": -1524771312359.9429 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 23:07 on Tue 6 Sep to 22:41 on Wed 7 Sep.", "fact": "1921-09-06T15:06:40Z → 1921-09-07T14:40:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 6th, 11:37–12:25 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36969 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Fuzhou, 1921: Wednesday 7 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": "1921-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Sūrya Ṣaṣṭhī (Bhādrapada) 1921 falls on Wednesday 7 September. Ṣaṣṭhī runs from 23:07 on Tue 6 Sep to 22:41 on Wed 7 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36969, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1921-09-07T22:40:57+08:00", "utc": "1921-09-07T14:40:57Z", "ms": -1524734343172.7114 }, "end": { "local": "1921-09-08T23:02:05+08:00", "utc": "1921-09-08T15:02:05Z", "ms": -1524646675494.9456 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-07T22:40:57+08:00", "utc": "1921-09-07T14:40:57Z", "ms": -1524734343172.7114 }, "end": { "local": "1921-09-08T23:02:05+08:00", "utc": "1921-09-08T15:02:05Z", "ms": -1524646675494.9456 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-09-07", "window": { "start": { "local": "1921-09-07T11:36:48+08:00", "utc": "1921-09-07T03:36:48Z", "ms": -1524774192359.9429 }, "end": { "local": "1921-09-07T12:24:48+08:00", "utc": "1921-09-07T04:24:48Z", "ms": -1524771312359.9429 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-09-08", "window": { "start": { "local": "1921-09-08T11:36:27+08:00", "utc": "1921-09-08T03:36:27Z", "ms": -1524687812596.5107 }, "end": { "local": "1921-09-08T12:24:27+08:00", "utc": "1921-09-08T04:24:27Z", "ms": -1524684932596.5107 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 22:41 on Wed 7 Sep to 23:02 on Thu 8 Sep.", "fact": "1921-09-07T14:40:57Z → 1921-09-08T15:02:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 7th, 11:36–12:24 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "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 36969 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Fuzhou, 1921: Thursday 8 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": "1921-09-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Muktābharaṇa Vrata 1921 falls on Thursday 8 September. Saptamī runs from 22:41 on Wed 7 Sep to 23:02 on Thu 8 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38257, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1921-09-08T23:02:05+08:00", "utc": "1921-09-08T15:02:05Z", "ms": -1524646675494.9456 }, "end": { "local": "1921-09-10T00:05:58+08:00", "utc": "1921-09-09T16:05:58Z", "ms": -1524556441685.9678 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-08T23:02:05+08:00", "utc": "1921-09-08T15:02:05Z", "ms": -1524646675494.9456 }, "end": { "local": "1921-09-10T00:05:58+08:00", "utc": "1921-09-09T16:05:58Z", "ms": -1524556441685.9678 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-09-08", "window": { "start": { "local": "1921-09-08T11:36:27+08:00", "utc": "1921-09-08T03:36:27Z", "ms": -1524687812596.5107 }, "end": { "local": "1921-09-08T12:24:27+08:00", "utc": "1921-09-08T04:24:27Z", "ms": -1524684932596.5107 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-09-09", "window": { "start": { "local": "1921-09-09T11:36:07+08:00", "utc": "1921-09-09T03:36:07Z", "ms": -1524601433032.0698 }, "end": { "local": "1921-09-09T12:24:07+08:00", "utc": "1921-09-09T04:24:07Z", "ms": -1524598553032.0698 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 23:02 on Thu 8 Sep to 00:06 on Sat 10 Sep.", "fact": "1921-09-08T15:02:05Z → 1921-09-09T16:05:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 8th, 11:36–12:24 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38257 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Fuzhou, 1921: Friday 9 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": "1921-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Rādhāṣṭamī 1921 falls on Friday 9 September. Aṣṭamī runs from 23:02 on Thu 8 Sep to 00:06 on Sat 10 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-09-13", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1497, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-09-12T03:51:00+08:00", "utc": "1921-09-11T19:51:00Z", "ms": -1524370140461.8337 }, "end": { "local": "1921-09-13T06:12:22+08:00", "utc": "1921-09-12T22:12:22Z", "ms": -1524275257796.1135 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-12T03:51:00+08:00", "utc": "1921-09-11T19:51:00Z", "ms": -1524370140461.8337 }, "end": { "local": "1921-09-13T06:12:22+08:00", "utc": "1921-09-12T22:12:22Z", "ms": -1524275257796.1135 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-09-12", "window": { "start": { "local": "1921-09-12T05:47:01+08:00", "utc": "1921-09-11T21:47:01Z", "ms": -1524363178907.2456 }, "end": { "local": "1921-09-12T05:47:01+08:00", "utc": "1921-09-11T21:47:01Z", "ms": -1524363178907.2456 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-09-13", "window": { "start": { "local": "1921-09-13T05:47:25+08:00", "utc": "1921-09-12T21:47:25Z", "ms": -1524276754730.9587 }, "end": { "local": "1921-09-13T05:47:25+08:00", "utc": "1921-09-12T21:47:25Z", "ms": -1524276754730.9587 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:51 on Mon 12 Sep to 06:12 on Tue 13 Sep.", "fact": "1921-09-11T19:51:00Z → 1921-09-12T22:12:22Z" }, { "step": "kaala", "text": "Sunrise is at 05:47 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 on the 12th and is on the 13th.", "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 1497 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Fuzhou, 1921: Tuesday 13 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": "1921-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Parivartanī Ekādaśī 1921 falls on Tuesday 13 September. Ekādaśī runs from 03:51 on Mon 12 Sep to 06:12 on Tue 13 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-09-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10485, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1921-09-13T06:12:22+08:00", "utc": "1921-09-12T22:12:22Z", "ms": -1524275257796.1135 }, "end": { "local": "1921-09-14T08:39:38+08:00", "utc": "1921-09-14T00:39:38Z", "ms": -1524180022154.769 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-13T06:12:22+08:00", "utc": "1921-09-12T22:12:22Z", "ms": -1524275257796.1135 }, "end": { "local": "1921-09-14T08:39:38+08:00", "utc": "1921-09-14T00:39:38Z", "ms": -1524180022154.769 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-09-13", "window": { "start": { "local": "1921-09-13T11:34:44+08:00", "utc": "1921-09-13T03:34:44Z", "ms": -1524255916378.5146 }, "end": { "local": "1921-09-13T12:22:44+08:00", "utc": "1921-09-13T04:22:44Z", "ms": -1524253036378.5146 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-09-14", "window": { "start": { "local": "1921-09-14T11:34:22+08:00", "utc": "1921-09-14T03:34:22Z", "ms": -1524169537513.849 }, "end": { "local": "1921-09-14T12:22:22+08:00", "utc": "1921-09-14T04:22:22Z", "ms": -1524166657513.849 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 06:12 on Tue 13 Sep to 08:40 on Wed 14 Sep.", "fact": "1921-09-12T22:12:22Z → 1921-09-14T00:39:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 13th, 11:34–12:22 on the 14th.", "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 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: unstated → only-day · margin 10485 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Fuzhou, 1921: Tuesday 13 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vamana-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Visnuparivartanotsava, Sakrotthana (in any of the naksatras U. Asadha, Sravana & Dhanistha), Kalki dvadasi, Sravana dvadasi (when combined with naksatra Sravana), Vamana jayanti (madhyahna vyapini)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-09-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Vāmana Jayantī 1921 falls on Tuesday 13 September. Dvādaśī runs from 06:12 on Tue 13 Sep to 08:40 on Wed 14 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-09-14", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25417, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-09-14T08:39:38+08:00", "utc": "1921-09-14T00:39:38Z", "ms": -1524180022154.769 }, "end": { "local": "1921-09-15T11:04:12+08:00", "utc": "1921-09-15T03:04:12Z", "ms": -1524084947947.014 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-14T08:39:38+08:00", "utc": "1921-09-14T00:39:38Z", "ms": -1524180022154.769 }, "end": { "local": "1921-09-15T11:04:12+08:00", "utc": "1921-09-15T03:04:12Z", "ms": -1524084947947.014 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-09-14", "window": { "start": { "local": "1921-09-14T18:08:56+08:00", "utc": "1921-09-14T10:08:56Z", "ms": -1524145864448.4526 }, "end": { "local": "1921-09-14T19:42:10+08:00", "utc": "1921-09-14T11:42:10Z", "ms": -1524140270046.8801 } }, "covered_min": 93, "window_min": 93, "qualifies": true }, { "local_date": "1921-09-15", "window": { "start": { "local": "1921-09-15T18:07:49+08:00", "utc": "1921-09-15T10:07:49Z", "ms": -1524059531014.9043 }, "end": { "local": "1921-09-15T19:41:15+08:00", "utc": "1921-09-15T11:41:15Z", "ms": -1524053924517.865 } }, "covered_min": 0, "window_min": 93, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:40 on Wed 14 Sep to 11:04 on Thu 15 Sep.", "fact": "1921-09-14T00:39:38Z → 1921-09-15T03:04:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:09–19:42 on the 14th, 18:08–19:41 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 93 of 93 minutes on the 14th and 0 of 93 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 25417 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Wednesday 14 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": "1921-09-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Wednesday 14 September. Trayodaśī runs from 08:40 on Wed 14 Sep to 11:04 on Thu 15 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-09-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10083, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-09-15T11:04:12+08:00", "utc": "1921-09-15T03:04:12Z", "ms": -1524084947947.014 }, "end": { "local": "1921-09-16T13:19:16+08:00", "utc": "1921-09-16T05:19:16Z", "ms": -1523990444465.7908 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1921-09-15T11:04:12+08:00", "utc": "1921-09-15T03:04:12Z", "ms": -1524084947947.014 }, "end": { "local": "1921-09-16T13:19:16+08:00", "utc": "1921-09-16T05:19:16Z", "ms": -1523990444465.7908 } }, "kaala": "udaya-3", "days": [ { "local_date": "1921-09-15", "window": { "start": { "local": "1921-09-15T05:48:14+08:00", "utc": "1921-09-14T21:48:14Z", "ms": -1524103906436.6587 }, "end": { "local": "1921-09-15T08:16:09+08:00", "utc": "1921-09-15T00:16:09Z", "ms": -1524095031352.3079 } }, "covered_min": 0, "window_min": 148, "qualifies": false }, { "local_date": "1921-09-16", "window": { "start": { "local": "1921-09-16T05:48:38+08:00", "utc": "1921-09-15T21:48:38Z", "ms": -1524017482287.1086 }, "end": { "local": "1921-09-16T08:16:15+08:00", "utc": "1921-09-16T00:16:15Z", "ms": -1524008625369.0688 } }, "covered_min": 148, "window_min": 148, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:04 on Thu 15 Sep to 13:19 on Fri 16 Sep.", "fact": "1921-09-15T03:04:12Z → 1921-09-16T05:19:16Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:48–08:16 on the 15th, 05:49–08:16 on the 16th.", "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 148 minutes on the 15th and 148 of 148 on the 16th.", "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 10083 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Fuzhou, 1921: Friday 16 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": "1921-09-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Ananta Caturdaśī 1921 falls on Friday 16 September. Caturdaśī runs from 11:04 on Thu 15 Sep to 13:19 on Fri 16 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-09-20", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2189, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-09-20T19:16:30+08:00", "utc": "1921-09-20T11:16:30Z", "ms": -1523623409695.7615 }, "end": { "local": "1921-09-21T19:44:17+08:00", "utc": "1921-09-21T11:44:17Z", "ms": -1523535342551.0413 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-09-20T19:16:30+08:00", "utc": "1921-09-20T11:16:30Z", "ms": -1523623409695.7615 }, "end": { "local": "1921-09-21T19:44:17+08:00", "utc": "1921-09-21T11:44:17Z", "ms": -1523535342551.0413 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-09-20", "window": { "start": { "local": "1921-09-20T19:52:59+08:00", "utc": "1921-09-20T11:52:59Z", "ms": -1523621220992.7427 }, "end": { "local": "1921-09-20T19:52:59+08:00", "utc": "1921-09-20T11:52:59Z", "ms": -1523621220992.7427 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-09-21", "window": { "start": { "local": "1921-09-21T20:35:17+08:00", "utc": "1921-09-21T12:35:17Z", "ms": -1523532282953.293 }, "end": { "local": "1921-09-21T20:35:17+08:00", "utc": "1921-09-21T12:35:17Z", "ms": -1523532282953.293 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:17 on Tue 20 Sep to 19:44 on Wed 21 Sep.", "fact": "1921-09-20T11:16:30Z → 1921-09-21T11:44:17Z" }, { "step": "kaala", "text": "Moonrise is at 19:53 on the 20th and 20:35 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 20th and is not on the 21st.", "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 2189 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Tuesday 20 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": "1921-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Tuesday 20 September. Caturthī runs from 19:17 on Tue 20 Sep to 19:44 on Wed 21 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-09-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5942, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1921-09-22T19:42:15+08:00", "utc": "1921-09-22T11:42:15Z", "ms": -1523449065291.122 }, "end": { "local": "1921-09-23T19:08:34+08:00", "utc": "1921-09-23T11:08:34Z", "ms": -1523364686319.097 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-09-22T19:42:15+08:00", "utc": "1921-09-22T11:42:15Z", "ms": -1523449065291.122 }, "end": { "local": "1921-09-23T19:08:34+08:00", "utc": "1921-09-23T11:08:34Z", "ms": -1523364686319.097 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-09-22", "window": { "start": { "local": "1921-09-22T21:21:17+08:00", "utc": "1921-09-22T13:21:17Z", "ms": -1523443122949.982 }, "end": { "local": "1921-09-22T21:21:17+08:00", "utc": "1921-09-22T13:21:17Z", "ms": -1523443122949.982 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-09-23", "window": { "start": { "local": "1921-09-23T22:11:30+08:00", "utc": "1921-09-23T14:11:30Z", "ms": -1523353710437.2705 }, "end": { "local": "1921-09-23T22:11:30+08:00", "utc": "1921-09-23T14:11:30Z", "ms": -1523353710437.2705 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 19:42 on Thu 22 Sep to 19:09 on Fri 23 Sep.", "fact": "1921-09-22T11:42:15Z → 1921-09-23T11:08:34Z" }, { "step": "kaala", "text": "Moonrise is at 21:21 on the 22nd and 22:11 on the 23rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is on the 22nd and is not on the 23rd.", "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 5942 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Fuzhou, 1921: Thursday 22 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chandra-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-09-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Candra Ṣaṣṭhī 1921 falls on Thursday 22 September. Ṣaṣṭhī runs from 19:42 on Thu 22 Sep to 19:09 on Fri 23 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-24", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 279, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1921-09-24T18:02:28+08:00", "utc": "1921-09-24T10:02:28Z", "ms": -1523282252465.9536 }, "end": { "local": "1921-09-25T16:24:34+08:00", "utc": "1921-09-25T08:24:34Z", "ms": -1523201726325.9814 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-09-24T18:02:28+08:00", "utc": "1921-09-24T10:02:28Z", "ms": -1523282252465.9536 }, "end": { "local": "1921-09-25T16:24:34+08:00", "utc": "1921-09-25T08:24:34Z", "ms": -1523201726325.9814 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-09-24", "window": { "start": { "local": "1921-09-24T17:57:48+08:00", "utc": "1921-09-24T09:57:48Z", "ms": -1523282531828.4314 }, "end": { "local": "1921-09-24T19:33:04+08:00", "utc": "1921-09-24T11:33:04Z", "ms": -1523276815822.2249 } }, "covered_min": 91, "window_min": 95, "qualifies": true }, { "local_date": "1921-09-25", "window": { "start": { "local": "1921-09-25T17:56:42+08:00", "utc": "1921-09-25T09:56:42Z", "ms": -1523196198242.9985 }, "end": { "local": "1921-09-25T19:32:10+08:00", "utc": "1921-09-25T11:32:10Z", "ms": -1523190470026.0117 } }, "covered_min": 0, "window_min": 95, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 18:02 on Sat 24 Sep to 16:25 on Sun 25 Sep.", "fact": "1921-09-24T10:02:28Z → 1921-09-25T08:24:34Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:58–19:33 on the 24th, 17:57–19:32 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 91 of 95 minutes on the 24th and 0 of 95 on the 25th.", "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 279 s < 300 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Fuzhou, 1921: Saturday 24 September.", "fact": "confidence: boundary (margin)" } ], "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": "1921-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-24", "confidence": "boundary" } ], "quote": "In Fuzhou, Jitāṣṭamī (Jitiya) 1921 falls on Saturday 24 September. Aṣṭamī runs from 18:02 on Sat 24 Sep to 16:25 on Sun 25 Sep and covers 91 of 95 minutes of pradoṣa that evening. It is 4 min 39 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18214, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1921-09-24T18:02:28+08:00", "utc": "1921-09-24T10:02:28Z", "ms": -1523282252465.9536 }, "end": { "local": "1921-09-25T16:24:34+08:00", "utc": "1921-09-25T08:24:34Z", "ms": -1523201726325.9814 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-09-24T18:02:28+08:00", "utc": "1921-09-24T10:02:28Z", "ms": -1523282252465.9536 }, "end": { "local": "1921-09-25T16:24:34+08:00", "utc": "1921-09-25T08:24:34Z", "ms": -1523201726325.9814 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-09-24", "window": { "start": { "local": "1921-09-24T23:06:02+08:00", "utc": "1921-09-24T15:06:02Z", "ms": -1523264038407.8838 }, "end": { "local": "1921-09-24T23:06:02+08:00", "utc": "1921-09-24T15:06:02Z", "ms": -1523264038407.8838 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-09-25", "window": { "start": { "local": "1921-09-26T00:04:30+08:00", "utc": "1921-09-25T16:04:30Z", "ms": -1523174130380.286 }, "end": { "local": "1921-09-26T00:04:30+08:00", "utc": "1921-09-25T16:04:30Z", "ms": -1523174130380.286 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 18:02 on Sat 24 Sep to 16:25 on Sun 25 Sep.", "fact": "1921-09-24T10:02:28Z → 1921-09-25T08:24:34Z" }, { "step": "kaala", "text": "Moonrise is at 23:06 on the 24th and 00:04 on the 25th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 24th and is not on the 25th.", "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 18214 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Fuzhou, 1921: Saturday 24 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalakshmi-vrata-samapana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahālakṣmī Vrata Samāpana 1921 falls on Saturday 24 September. Aṣṭamī runs from 18:02 on Sat 24 Sep to 16:25 on Sun 25 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-09-28", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10643, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-09-27T11:44:06+08:00", "utc": "1921-09-27T03:44:06Z", "ms": -1523045754315.0442 }, "end": { "local": "1921-09-28T08:50:57+08:00", "utc": "1921-09-28T00:50:57Z", "ms": -1522969743121.142 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-09-27T11:44:06+08:00", "utc": "1921-09-27T03:44:06Z", "ms": -1523045754315.0442 }, "end": { "local": "1921-09-28T08:50:57+08:00", "utc": "1921-09-28T00:50:57Z", "ms": -1522969743121.142 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-09-27", "window": { "start": { "local": "1921-09-27T05:53:09+08:00", "utc": "1921-09-26T21:53:09Z", "ms": -1523066811259.2188 }, "end": { "local": "1921-09-27T05:53:09+08:00", "utc": "1921-09-26T21:53:09Z", "ms": -1523066811259.2188 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-09-28", "window": { "start": { "local": "1921-09-28T05:53:34+08:00", "utc": "1921-09-27T21:53:34Z", "ms": -1522980385700.3728 }, "end": { "local": "1921-09-28T05:53:34+08:00", "utc": "1921-09-27T21:53:34Z", "ms": -1522980385700.3728 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:44 on Tue 27 Sep to 08:51 on Wed 28 Sep.", "fact": "1921-09-27T03:44:06Z → 1921-09-28T00:50:57Z" }, { "step": "kaala", "text": "Sunrise is at 05:53 on the 27th and 05:54 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10643 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Fuzhou, 1921: Wednesday 28 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": "1921-09-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Indirā Ekādaśī 1921 falls on Wednesday 28 September. Ekādaśī runs from 11:44 on Tue 27 Sep to 08:51 on Wed 28 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-09-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-09-29", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25433, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-09-29T05:44:28+08:00", "utc": "1921-09-28T21:44:28Z", "ms": -1522894531520.6487 }, "end": { "local": "1921-09-30T02:32:28+08:00", "utc": "1921-09-29T18:32:28Z", "ms": -1522819652328.2014 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-09-29T05:44:28+08:00", "utc": "1921-09-28T21:44:28Z", "ms": -1522894531520.6487 }, "end": { "local": "1921-09-30T02:32:28+08:00", "utc": "1921-09-29T18:32:28Z", "ms": -1522819652328.2014 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-09-28", "window": { "start": { "local": "1921-09-28T17:53:24+08:00", "utc": "1921-09-28T09:53:24Z", "ms": -1522937196342.6584 }, "end": { "local": "1921-09-28T19:29:29+08:00", "utc": "1921-09-28T11:29:29Z", "ms": -1522931431487.373 } }, "covered_min": 0, "window_min": 96, "qualifies": false }, { "local_date": "1921-09-29", "window": { "start": { "local": "1921-09-29T17:52:18+08:00", "utc": "1921-09-29T09:52:18Z", "ms": -1522850861908.6301 }, "end": { "local": "1921-09-29T19:28:35+08:00", "utc": "1921-09-29T11:28:35Z", "ms": -1522845084845.1235 } }, "covered_min": 96, "window_min": 96, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:44 on Thu 29 Sep to 02:32 on Fri 30 Sep.", "fact": "1921-09-28T21:44:28Z → 1921-09-29T18:32:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:53–19:29 on the 28th, 17:52–19:29 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 96 minutes on the 28th and 96 of 96 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 25433 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Thursday 29 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": "1921-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Thursday 29 September. Trayodaśī runs from 05:44 on Thu 29 Sep to 02:32 on Fri 30 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-09-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-09-29", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-09-29", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 340, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-09-30T02:32:28+08:00", "utc": "1921-09-29T18:32:28Z", "ms": -1522819652328.2014 }, "end": { "local": "1921-09-30T23:23:22+08:00", "utc": "1921-09-30T15:23:22Z", "ms": -1522744597731.7036 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-09-30T02:32:28+08:00", "utc": "1921-09-29T18:32:28Z", "ms": -1522819652328.2014 }, "end": { "local": "1921-09-30T23:23:22+08:00", "utc": "1921-09-30T15:23:22Z", "ms": -1522744597731.7036 } }, "kaala": "nishita", "days": [ { "local_date": "1921-09-29", "window": { "start": { "local": "1921-09-29T23:29:22+08:00", "utc": "1921-09-29T15:29:22Z", "ms": -1522830637920.48 }, "end": { "local": "1921-09-30T00:17:22+08:00", "utc": "1921-09-29T16:17:22Z", "ms": -1522827757920.48 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-09-30", "window": { "start": { "local": "1921-09-30T23:29:03+08:00", "utc": "1921-09-30T15:29:03Z", "ms": -1522744257452.5542 }, "end": { "local": "1921-10-01T00:17:03+08:00", "utc": "1921-09-30T16:17:03Z", "ms": -1522741377452.5542 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:32 on Fri 30 Sep to 23:23 on Fri 30 Sep.", "fact": "1921-09-29T18:32:28Z → 1921-09-30T15:23:22Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:29–00:17 on the 29th, 23:29–00:17 on the 30th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither night qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 340 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Thursday 29 September.", "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": "1921-09-29", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-09-29", "confidence": "boundary" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Thursday 29 September. Caturdaśī runs from 02:32 on Fri 30 Sep to 23:23 on Fri 30 Sep, and reaches niśītha on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-09-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17936, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1921-09-30T23:23:22+08:00", "utc": "1921-09-30T15:23:22Z", "ms": -1522744597731.7036 }, "end": { "local": "1921-10-01T20:26:01+08:00", "utc": "1921-10-01T12:26:01Z", "ms": -1522668839199.7131 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-09-30T23:23:22+08:00", "utc": "1921-09-30T15:23:22Z", "ms": -1522744597731.7036 }, "end": { "local": "1921-10-01T20:26:01+08:00", "utc": "1921-10-01T12:26:01Z", "ms": -1522668839199.7131 } }, "kaala": "aparahna", "days": [ { "local_date": "1921-09-30", "window": { "start": { "local": "1921-09-30T13:04:30+08:00", "utc": "1921-09-30T05:04:30Z", "ms": -1522781729893.3196 }, "end": { "local": "1921-09-30T15:27:51+08:00", "utc": "1921-09-30T07:27:51Z", "ms": -1522773128546.983 } }, "covered_min": 0, "window_min": 143, "qualifies": false }, { "local_date": "1921-10-01", "window": { "start": { "local": "1921-10-01T13:04:02+08:00", "utc": "1921-10-01T05:04:02Z", "ms": -1522695358399.2407 }, "end": { "local": "1921-10-01T15:27:05+08:00", "utc": "1921-10-01T07:27:05Z", "ms": -1522686775297.5002 } }, "covered_min": 143, "window_min": 143, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 23:23 on Fri 30 Sep to 20:26 on Sat 1 Oct.", "fact": "1921-09-30T15:23:22Z → 1921-10-01T12:26:01Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:05–15:28 on the 30th, 13:04–15:27 on the 1st.", "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 143 minutes on the 30th and 143 of 143 on the 1st.", "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 17936 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Fuzhou, 1921: Saturday 1 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": "1921-10-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahālaya Amāvāsyā 1921 falls on Saturday 1 October. Amāvasyā runs from 23:23 on Fri 30 Sep to 20:26 on Sat 1 Oct and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19980, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1921-10-01T20:26:01+08:00", "utc": "1921-10-01T12:26:01Z", "ms": -1522668839199.7131 }, "end": { "local": "1921-10-02T17:49:11+08:00", "utc": "1921-10-02T09:49:11Z", "ms": -1522591849169.1345 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-10-01T20:26:01+08:00", "utc": "1921-10-01T12:26:01Z", "ms": -1522668839199.7131 }, "end": { "local": "1921-10-02T17:49:11+08:00", "utc": "1921-10-02T09:49:11Z", "ms": -1522591849169.1345 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-10-01", "window": { "start": { "local": "1921-10-01T11:28:30+08:00", "utc": "1921-10-01T03:28:30Z", "ms": -1522701089950.1108 }, "end": { "local": "1921-10-01T12:16:30+08:00", "utc": "1921-10-01T04:16:30Z", "ms": -1522698209950.1108 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-10-02", "window": { "start": { "local": "1921-10-02T11:28:11+08:00", "utc": "1921-10-02T03:28:11Z", "ms": -1522614709053.7563 }, "end": { "local": "1921-10-02T12:16:11+08:00", "utc": "1921-10-02T04:16:11Z", "ms": -1522611829053.7563 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 20:26 on Sat 1 Oct to 17:49 on Sun 2 Oct.", "fact": "1921-10-01T12:26:01Z → 1921-10-02T09:49:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 1st, 11:28–12:16 on the 2nd.", "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 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19980 s" }, { "step": "ruling", "text": "Navarātrārambha, Fuzhou, 1921: Sunday 2 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": "1921-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Navarātrārambha (Navratri) 1921 falls on Sunday 2 October. Pratipadā runs from 20:26 on Sat 1 Oct to 17:49 on Sun 2 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-10-05", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3864, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-10-04T14:09:29+08:00", "utc": "1921-10-04T06:09:29Z", "ms": -1522432230924.5476 }, "end": { "local": "1921-10-05T13:19:40+08:00", "utc": "1921-10-05T05:19:40Z", "ms": -1522348820138.051 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-10-04T14:09:29+08:00", "utc": "1921-10-04T06:09:29Z", "ms": -1522432230924.5476 }, "end": { "local": "1921-10-05T13:19:40+08:00", "utc": "1921-10-05T05:19:40Z", "ms": -1522348820138.051 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-10-04", "window": { "start": { "local": "1921-10-04T11:27:34+08:00", "utc": "1921-10-04T03:27:34Z", "ms": -1522441946359.0347 }, "end": { "local": "1921-10-04T12:15:34+08:00", "utc": "1921-10-04T04:15:34Z", "ms": -1522439066359.0347 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-10-05", "window": { "start": { "local": "1921-10-05T11:27:15+08:00", "utc": "1921-10-05T03:27:15Z", "ms": -1522355564528.4072 }, "end": { "local": "1921-10-05T12:15:15+08:00", "utc": "1921-10-05T04:15:15Z", "ms": -1522352684528.4072 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:09 on Tue 4 Oct to 13:20 on Wed 5 Oct.", "fact": "1921-10-04T06:09:29Z → 1921-10-05T05:19:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 on the 4th, 11:27–12:15 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3864 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 1921: Wednesday 5 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": "1921-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 1921 falls on Wednesday 5 October. Caturthī runs from 14:09 on Tue 4 Oct to 13:20 on Wed 5 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-10-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25847, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1921-10-07T13:55:27+08:00", "utc": "1921-10-07T05:55:27Z", "ms": -1522173873442.855 }, "end": { "local": "1921-10-08T15:17:15+08:00", "utc": "1921-10-08T07:17:15Z", "ms": -1522082565217.181 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-10-07T13:55:27+08:00", "utc": "1921-10-07T05:55:27Z", "ms": -1522173873442.855 }, "end": { "local": "1921-10-08T15:17:15+08:00", "utc": "1921-10-08T07:17:15Z", "ms": -1522082565217.181 } }, "kaala": "udaya-1", "days": [ { "local_date": "1921-10-07", "window": { "start": { "local": "1921-10-07T05:57:35+08:00", "utc": "1921-10-06T21:57:35Z", "ms": -1522202544998.3176 }, "end": { "local": "1921-10-07T06:44:40+08:00", "utc": "1921-10-06T22:44:40Z", "ms": -1522199720307.1455 } }, "covered_min": 0, "window_min": 47, "qualifies": false }, { "local_date": "1921-10-08", "window": { "start": { "local": "1921-10-08T05:58:03+08:00", "utc": "1921-10-07T21:58:03Z", "ms": -1522116116906.3518 }, "end": { "local": "1921-10-08T06:45:02+08:00", "utc": "1921-10-07T22:45:02Z", "ms": -1522113298238.126 } }, "covered_min": 47, "window_min": 47, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 13:55 on Fri 7 Oct to 15:17 on Sat 8 Oct.", "fact": "1921-10-07T05:55:27Z → 1921-10-08T07:17:15Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:58–06:45 on the 7th, 05:58–06:45 on the 8th.", "fact": "udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must hold through the first muhūrta after sunrise. It covers 0 of 47 minutes on the 7th and 47 of 47 on the 8th.", "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 25847 s" }, { "step": "ruling", "text": "Durgā Saptamī, Fuzhou, 1921: Saturday 8 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": "1921-10-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Durgā Saptamī 1921 falls on Saturday 8 October. Saptamī runs from 13:55 on Fri 7 Oct to 15:17 on Sat 8 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10972, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1921-10-08T15:17:15+08:00", "utc": "1921-10-08T07:17:15Z", "ms": -1522082565217.181 }, "end": { "local": "1921-10-09T17:12:48+08:00", "utc": "1921-10-09T09:12:48Z", "ms": -1521989231927.4553 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-10-08T15:17:15+08:00", "utc": "1921-10-08T07:17:15Z", "ms": -1522082565217.181 }, "end": { "local": "1921-10-09T17:12:48+08:00", "utc": "1921-10-09T09:12:48Z", "ms": -1521989231927.4553 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-10-08", "window": { "start": { "local": "1921-10-08T11:26:23+08:00", "utc": "1921-10-08T03:26:23Z", "ms": -1522096416894.6587 }, "end": { "local": "1921-10-08T12:14:23+08:00", "utc": "1921-10-08T04:14:23Z", "ms": -1522093536894.6587 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-10-09", "window": { "start": { "local": "1921-10-09T11:26:06+08:00", "utc": "1921-10-09T03:26:06Z", "ms": -1522010033574.1091 }, "end": { "local": "1921-10-09T12:14:06+08:00", "utc": "1921-10-09T04:14:06Z", "ms": -1522007153574.1091 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 15:17 on Sat 8 Oct to 17:13 on Sun 9 Oct.", "fact": "1921-10-08T07:17:15Z → 1921-10-09T09:12:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:26–12:14 on the 8th, 11:26–12:14 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10972 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Fuzhou, 1921: Sunday 9 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": "1921-10-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahāṣṭamī (Durga Ashtami) 1921 falls on Sunday 9 October. Aṣṭamī runs from 15:17 on Sat 8 Oct to 17:13 on Sun 9 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17922, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1921-10-09T17:12:48+08:00", "utc": "1921-10-09T09:12:48Z", "ms": -1521989231927.4553 }, "end": { "local": "1921-10-10T19:31:23+08:00", "utc": "1921-10-10T11:31:23Z", "ms": -1521894516725.5132 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-10-09T17:12:48+08:00", "utc": "1921-10-09T09:12:48Z", "ms": -1521989231927.4553 }, "end": { "local": "1921-10-10T19:31:23+08:00", "utc": "1921-10-10T11:31:23Z", "ms": -1521894516725.5132 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-10-09", "window": { "start": { "local": "1921-10-09T11:26:06+08:00", "utc": "1921-10-09T03:26:06Z", "ms": -1522010033574.1091 }, "end": { "local": "1921-10-09T12:14:06+08:00", "utc": "1921-10-09T04:14:06Z", "ms": -1522007153574.1091 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-10-10", "window": { "start": { "local": "1921-10-10T11:25:50+08:00", "utc": "1921-10-10T03:25:50Z", "ms": -1521923649833.268 }, "end": { "local": "1921-10-10T12:13:50+08:00", "utc": "1921-10-10T04:13:50Z", "ms": -1521920769833.268 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 17:13 on Sun 9 Oct to 19:31 on Mon 10 Oct.", "fact": "1921-10-09T09:12:48Z → 1921-10-10T11:31:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:26–12:14 on the 9th, 11:26–12:14 on the 10th.", "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 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17922 s" }, { "step": "ruling", "text": "Mahānavamī, Fuzhou, 1921: Monday 10 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": "1921-10-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-10", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahānavamī 1921 falls on Monday 10 October. Navamī runs from 17:13 on Sun 9 Oct to 19:31 on Mon 10 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3897, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1921-10-10T19:31:23+08:00", "utc": "1921-10-10T11:31:23Z", "ms": -1521894516725.5132 }, "end": { "local": "1921-10-11T22:00:32+08:00", "utc": "1921-10-11T14:00:32Z", "ms": -1521799167908.0564 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "1921-10-10T19:31:23+08:00", "utc": "1921-10-10T11:31:23Z", "ms": -1521894516725.5132 }, "end": { "local": "1921-10-11T18:44:37+08:00", "utc": "1921-10-11T10:44:37Z", "ms": -1521810923283.264 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "1921-10-10T15:46:45+08:00", "utc": "1921-10-10T07:46:45Z", "ms": -1521907994867.7239 }, "end": { "local": "1921-10-11T18:44:37+08:00", "utc": "1921-10-11T10:44:37Z", "ms": -1521810923283.264 } } }, "kaala": "daytime", "days": [ { "local_date": "1921-10-10", "window": { "start": { "local": "1921-10-10T05:59:00+08:00", "utc": "1921-10-09T21:59:00Z", "ms": -1521943259792.8408 }, "end": { "local": "1921-10-10T17:40:40+08:00", "utc": "1921-10-10T09:40:40Z", "ms": -1521901159873.695 } }, "covered_min": 0, "window_min": 702, "qualifies": false }, { "local_date": "1921-10-11", "window": { "start": { "local": "1921-10-11T05:59:29+08:00", "utc": "1921-10-10T21:59:29Z", "ms": -1521856830748.0774 }, "end": { "local": "1921-10-11T17:39:39+08:00", "utc": "1921-10-11T09:39:39Z", "ms": -1521814820556.3042 } }, "covered_min": 700, "window_min": 700, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 19:31 on Mon 10 Oct to 22:01 on Tue 11 Oct, and Śravaṇa from 15:47 on Mon 10 Oct to 18:45 on Tue 11 Oct. They are together from 19:31 on Mon 10 Oct to 18:45 on Tue 11 Oct.", "fact": "1921-10-10T11:31:23Z → 1921-10-11T10:44:37Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 05:59–17:41 on the 10th, 05:59–17:40 on the 11th.", "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 702 minutes on the 10th and 700 of 700 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3897 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Fuzhou, 1921: Tuesday 11 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": "1921-10-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Vijayā Daśamī (Dussehra) 1921 falls on Tuesday 11 October. Daśamī runs from 19:31 on Mon 10 Oct to 22:01 on Tue 11 Oct and is with Śravaṇa in the day time that day, for 700 minutes.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-10-12", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19964, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-10-11T22:00:32+08:00", "utc": "1921-10-11T14:00:32Z", "ms": -1521799167908.0564 }, "end": { "local": "1921-10-13T00:27:45+08:00", "utc": "1921-10-12T16:27:45Z", "ms": -1521703935341.5818 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-10-11T22:00:32+08:00", "utc": "1921-10-11T14:00:32Z", "ms": -1521799167908.0564 }, "end": { "local": "1921-10-13T00:27:45+08:00", "utc": "1921-10-12T16:27:45Z", "ms": -1521703935341.5818 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-10-12", "window": { "start": { "local": "1921-10-12T05:59:59+08:00", "utc": "1921-10-11T21:59:59Z", "ms": -1521770401362.156 }, "end": { "local": "1921-10-12T05:59:59+08:00", "utc": "1921-10-11T21:59:59Z", "ms": -1521770401362.156 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-10-13", "window": { "start": { "local": "1921-10-13T06:00:28+08:00", "utc": "1921-10-12T22:00:28Z", "ms": -1521683971623.044 }, "end": { "local": "1921-10-13T06:00:28+08:00", "utc": "1921-10-12T22:00:28Z", "ms": -1521683971623.044 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:01 on Tue 11 Oct to 00:28 on Thu 13 Oct.", "fact": "1921-10-11T14:00:32Z → 1921-10-12T16:27:45Z" }, { "step": "kaala", "text": "Sunrise is at 06:00 on the 12th and 06:00 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19964 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Fuzhou, 1921: Wednesday 12 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": "1921-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Pāśāṅkuśā Ekādaśī 1921 falls on Wednesday 12 October. Ekādaśī runs from 22:01 on Tue 11 Oct to 00:28 on Thu 13 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-10-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-10-14", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26719, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-10-14T02:42:05+08:00", "utc": "1921-10-13T18:42:05Z", "ms": -1521609475056.429 }, "end": { "local": "1921-10-15T04:35:14+08:00", "utc": "1921-10-14T20:35:14Z", "ms": -1521516286479.9731 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1921-10-14T02:42:05+08:00", "utc": "1921-10-13T18:42:05Z", "ms": -1521609475056.429 }, "end": { "local": "1921-10-15T04:35:14+08:00", "utc": "1921-10-14T20:35:14Z", "ms": -1521516286479.9731 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-10-13", "window": { "start": { "local": "1921-10-13T17:37:40+08:00", "utc": "1921-10-13T09:37:40Z", "ms": -1521642140153.404 }, "end": { "local": "1921-10-13T19:16:46+08:00", "utc": "1921-10-13T11:16:46Z", "ms": -1521636193668.7651 } }, "covered_min": 0, "window_min": 99, "qualifies": false }, { "local_date": "1921-10-14", "window": { "start": { "local": "1921-10-14T17:36:41+08:00", "utc": "1921-10-14T09:36:41Z", "ms": -1521555799009.7932 }, "end": { "local": "1921-10-14T19:15:59+08:00", "utc": "1921-10-14T11:15:59Z", "ms": -1521549840613.3748 } }, "covered_min": 99, "window_min": 99, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:42 on Fri 14 Oct to 04:35 on Sat 15 Oct.", "fact": "1921-10-13T18:42:05Z → 1921-10-14T20:35:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:38–19:17 on the 13th, 17:37–19:16 on the 14th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 99 minutes on the 13th and 99 of 99 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26719 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Friday 14 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": "1921-10-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Friday 14 October. Trayodaśī runs from 02:42 on Fri 14 Oct to 04:35 on Sat 15 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-10-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35927, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-10-20T06:58:54+08:00", "utc": "1921-10-19T22:58:54Z", "ms": -1521075665953.618 }, "end": { "local": "1921-10-21T06:07:16+08:00", "utc": "1921-10-20T22:07:16Z", "ms": -1520992364072.5024 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-20T06:58:54+08:00", "utc": "1921-10-19T22:58:54Z", "ms": -1521075665953.618 }, "end": { "local": "1921-10-21T06:07:16+08:00", "utc": "1921-10-20T22:07:16Z", "ms": -1520992364072.5024 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-10-19", "window": { "start": { "local": "1921-10-19T19:19:03+08:00", "utc": "1921-10-19T11:19:03Z", "ms": -1521117657347.379 }, "end": { "local": "1921-10-19T19:19:03+08:00", "utc": "1921-10-19T11:19:03Z", "ms": -1521117657347.379 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-10-20", "window": { "start": { "local": "1921-10-20T20:08:29+08:00", "utc": "1921-10-20T12:08:29Z", "ms": -1521028290955.2153 }, "end": { "local": "1921-10-20T20:08:29+08:00", "utc": "1921-10-20T12:08:29Z", "ms": -1521028290955.2153 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:59 on Thu 20 Oct to 06:07 on Fri 21 Oct.", "fact": "1921-10-19T22:58:54Z → 1921-10-20T22:07:16Z" }, { "step": "kaala", "text": "Moonrise is at 19:19 on the 19th and 20:08 on the 20th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 19th and is on the 20th.", "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 35927 s" }, { "step": "ruling", "text": "Karaka Caturthī, Fuzhou, 1921: Thursday 20 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": "1921-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Karaka Caturthī (Karwa Chauth) 1921 falls on Thursday 20 October. Caturthī runs from 06:59 on Thu 20 Oct to 06:07 on Fri 21 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-10-20", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35927, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-10-20T06:58:54+08:00", "utc": "1921-10-19T22:58:54Z", "ms": -1521075665953.618 }, "end": { "local": "1921-10-21T06:07:16+08:00", "utc": "1921-10-20T22:07:16Z", "ms": -1520992364072.5024 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-20T06:58:54+08:00", "utc": "1921-10-19T22:58:54Z", "ms": -1521075665953.618 }, "end": { "local": "1921-10-21T06:07:16+08:00", "utc": "1921-10-20T22:07:16Z", "ms": -1520992364072.5024 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-10-19", "window": { "start": { "local": "1921-10-19T19:19:03+08:00", "utc": "1921-10-19T11:19:03Z", "ms": -1521117657347.379 }, "end": { "local": "1921-10-19T19:19:03+08:00", "utc": "1921-10-19T11:19:03Z", "ms": -1521117657347.379 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-10-20", "window": { "start": { "local": "1921-10-20T20:08:29+08:00", "utc": "1921-10-20T12:08:29Z", "ms": -1521028290955.2153 }, "end": { "local": "1921-10-20T20:08:29+08:00", "utc": "1921-10-20T12:08:29Z", "ms": -1521028290955.2153 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:59 on Thu 20 Oct to 06:07 on Fri 21 Oct.", "fact": "1921-10-19T22:58:54Z → 1921-10-20T22:07:16Z" }, { "step": "kaala", "text": "Moonrise is at 19:19 on the 19th and 20:08 on the 20th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 19th and is on the 20th.", "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 35927 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Thursday 20 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": "1921-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Thursday 20 October. Caturthī runs from 06:59 on Thu 20 Oct to 06:07 on Fri 21 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-10-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-23", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1937, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1921-10-24T01:31:31+08:00", "utc": "1921-10-23T17:31:31Z", "ms": -1520749709466.149 }, "end": { "local": "1921-10-24T23:27:39+08:00", "utc": "1921-10-24T15:27:39Z", "ms": -1520670740775.9326 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-24T01:31:31+08:00", "utc": "1921-10-23T17:31:31Z", "ms": -1520749709466.149 }, "end": { "local": "1921-10-24T23:27:39+08:00", "utc": "1921-10-24T15:27:39Z", "ms": -1520670740775.9326 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-10-23", "window": { "start": { "local": "1921-10-23T22:58:36+08:00", "utc": "1921-10-23T14:58:36Z", "ms": -1520758883503.978 }, "end": { "local": "1921-10-23T22:58:36+08:00", "utc": "1921-10-23T14:58:36Z", "ms": -1520758883503.978 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-10-24", "window": { "start": { "local": "1921-10-24T23:59:57+08:00", "utc": "1921-10-24T15:59:57Z", "ms": -1520668803337.904 }, "end": { "local": "1921-10-24T23:59:57+08:00", "utc": "1921-10-24T15:59:57Z", "ms": -1520668803337.904 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 01:32 on Mon 24 Oct to 23:28 on Mon 24 Oct.", "fact": "1921-10-23T17:31:31Z → 1921-10-24T15:27:39Z" }, { "step": "kaala", "text": "Moonrise is at 22:59 on the 23rd and 00:00 on the 24th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 23rd and is not on the 24th.", "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 1937 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Fuzhou, 1921: Sunday 23 October.", "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": "1921-10-23", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-23", "confidence": "boundary" } ], "quote": "In Fuzhou, Ahoyī Aṣṭamī 1921 falls on Sunday 23 October. Aṣṭamī runs from 01:32 on Mon 24 Oct to 23:28 on Mon 24 Oct, and is current at moonrise on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-10-27", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36831, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-10-26T18:49:12+08:00", "utc": "1921-10-26T10:49:12Z", "ms": -1520514648032.808 }, "end": { "local": "1921-10-27T16:21:59+08:00", "utc": "1921-10-27T08:21:59Z", "ms": -1520437081183.4265 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-26T18:49:12+08:00", "utc": "1921-10-26T10:49:12Z", "ms": -1520514648032.808 }, "end": { "local": "1921-10-27T16:21:59+08:00", "utc": "1921-10-27T08:21:59Z", "ms": -1520437081183.4265 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-10-26", "window": { "start": { "local": "1921-10-26T06:07:32+08:00", "utc": "1921-10-25T22:07:32Z", "ms": -1520560347602.6104 }, "end": { "local": "1921-10-26T06:07:32+08:00", "utc": "1921-10-25T22:07:32Z", "ms": -1520560347602.6104 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-10-27", "window": { "start": { "local": "1921-10-27T06:08:08+08:00", "utc": "1921-10-26T22:08:08Z", "ms": -1520473911796.3108 }, "end": { "local": "1921-10-27T06:08:08+08:00", "utc": "1921-10-26T22:08:08Z", "ms": -1520473911796.3108 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:49 on Wed 26 Oct to 16:22 on Thu 27 Oct.", "fact": "1921-10-26T10:49:12Z → 1921-10-27T08:21:59Z" }, { "step": "kaala", "text": "Sunrise is at 06:08 on the 26th and 06:08 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 36831 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Fuzhou, 1921: Thursday 27 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": "1921-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Ramā Ekādaśī 1921 falls on Thursday 27 October. Ekādaśī runs from 18:49 on Wed 26 Oct to 16:22 on Thu 27 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-10-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3789, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1921-10-27T16:21:59+08:00", "utc": "1921-10-27T08:21:59Z", "ms": -1520437081183.4265 }, "end": { "local": "1921-10-28T13:55:30+08:00", "utc": "1921-10-28T05:55:30Z", "ms": -1520359469608.4695 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-27T16:21:59+08:00", "utc": "1921-10-27T08:21:59Z", "ms": -1520437081183.4265 }, "end": { "local": "1921-10-28T13:55:30+08:00", "utc": "1921-10-28T05:55:30Z", "ms": -1520359469608.4695 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-10-27", "window": { "start": { "local": "1921-10-27T17:25:08+08:00", "utc": "1921-10-27T09:25:08Z", "ms": -1520433292487.7053 }, "end": { "local": "1921-10-27T19:06:56+08:00", "utc": "1921-10-27T11:06:56Z", "ms": -1520427183558.3557 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1921-10-28", "window": { "start": { "local": "1921-10-28T17:24:21+08:00", "utc": "1921-10-28T09:24:21Z", "ms": -1520346939306.063 }, "end": { "local": "1921-10-28T19:06:21+08:00", "utc": "1921-10-28T11:06:21Z", "ms": -1520340819234.6606 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 16:22 on Thu 27 Oct to 13:56 on Fri 28 Oct.", "fact": "1921-10-27T08:21:59Z → 1921-10-28T05:55:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:25–19:07 on the 27th, 17:24–19:06 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 27th and 0 of 102 on the 28th.", "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 3789 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Fuzhou, 1921: Thursday 27 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govatsa-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Govatsa Dvādaśī (Vasu Baras) 1921 falls on Thursday 27 October. Dvādaśī runs from 16:22 on Thu 27 Oct to 13:56 on Fri 28 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12530, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-10-28T13:55:30+08:00", "utc": "1921-10-28T05:55:30Z", "ms": -1520359469608.4695 }, "end": { "local": "1921-10-29T11:35:15+08:00", "utc": "1921-10-29T03:35:15Z", "ms": -1520281484570.2446 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-28T13:55:30+08:00", "utc": "1921-10-28T05:55:30Z", "ms": -1520359469608.4695 }, "end": { "local": "1921-10-29T11:35:15+08:00", "utc": "1921-10-29T03:35:15Z", "ms": -1520281484570.2446 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-10-28", "window": { "start": { "local": "1921-10-28T17:24:21+08:00", "utc": "1921-10-28T09:24:21Z", "ms": -1520346939306.063 }, "end": { "local": "1921-10-28T19:06:21+08:00", "utc": "1921-10-28T11:06:21Z", "ms": -1520340819234.6606 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1921-10-29", "window": { "start": { "local": "1921-10-29T17:23:35+08:00", "utc": "1921-10-29T09:23:35Z", "ms": -1520260585062.9465 }, "end": { "local": "1921-10-29T19:05:46+08:00", "utc": "1921-10-29T11:05:46Z", "ms": -1520254453929.3718 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:56 on Fri 28 Oct to 11:35 on Sat 29 Oct.", "fact": "1921-10-28T05:55:30Z → 1921-10-29T03:35:15Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:24–19:06 on the 28th, 17:24–19:06 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 102 of 102 minutes on the 28th and 0 of 102 on the 29th.", "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 12530 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Fuzhou, 1921: Friday 28 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dipadana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 13 Yama dipadana (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Yama Dīpadāna 1921 falls on Friday 28 October. Trayodaśī runs from 13:56 on Fri 28 Oct to 11:35 on Sat 29 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-10-28", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12530, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-10-28T13:55:30+08:00", "utc": "1921-10-28T05:55:30Z", "ms": -1520359469608.4695 }, "end": { "local": "1921-10-29T11:35:15+08:00", "utc": "1921-10-29T03:35:15Z", "ms": -1520281484570.2446 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-28T13:55:30+08:00", "utc": "1921-10-28T05:55:30Z", "ms": -1520359469608.4695 }, "end": { "local": "1921-10-29T11:35:15+08:00", "utc": "1921-10-29T03:35:15Z", "ms": -1520281484570.2446 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-10-28", "window": { "start": { "local": "1921-10-28T17:24:21+08:00", "utc": "1921-10-28T09:24:21Z", "ms": -1520346939306.063 }, "end": { "local": "1921-10-28T19:06:21+08:00", "utc": "1921-10-28T11:06:21Z", "ms": -1520340819234.6606 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1921-10-29", "window": { "start": { "local": "1921-10-29T17:23:35+08:00", "utc": "1921-10-29T09:23:35Z", "ms": -1520260585062.9465 }, "end": { "local": "1921-10-29T19:05:46+08:00", "utc": "1921-10-29T11:05:46Z", "ms": -1520254453929.3718 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:56 on Fri 28 Oct to 11:35 on Sat 29 Oct.", "fact": "1921-10-28T05:55:30Z → 1921-10-29T03:35:15Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:24–19:06 on the 28th, 17:24–19:06 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 102 of 102 minutes on the 28th and 0 of 102 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 12530 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Friday 28 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": "1921-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Friday 28 October. Trayodaśī runs from 13:56 on Fri 28 Oct to 11:35 on Sat 29 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-10-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-10-29", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33395, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-10-29T11:35:15+08:00", "utc": "1921-10-29T03:35:15Z", "ms": -1520281484570.2446 }, "end": { "local": "1921-10-30T09:27:22+08:00", "utc": "1921-10-30T01:27:22Z", "ms": -1520202757843.9778 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-29T11:35:15+08:00", "utc": "1921-10-29T03:35:15Z", "ms": -1520281484570.2446 }, "end": { "local": "1921-10-30T09:27:22+08:00", "utc": "1921-10-30T01:27:22Z", "ms": -1520202757843.9778 } }, "kaala": "nishita", "days": [ { "local_date": "1921-10-28", "window": { "start": { "local": "1921-10-28T23:22:51+08:00", "utc": "1921-10-28T15:22:51Z", "ms": -1520325429038.3042 }, "end": { "local": "1921-10-29T00:10:51+08:00", "utc": "1921-10-28T16:10:51Z", "ms": -1520322549038.3042 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-10-29", "window": { "start": { "local": "1921-10-29T23:22:47+08:00", "utc": "1921-10-29T15:22:47Z", "ms": -1520239033312.0413 }, "end": { "local": "1921-10-30T00:10:47+08:00", "utc": "1921-10-29T16:10:47Z", "ms": -1520236153312.0413 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:35 on Sat 29 Oct to 09:27 on Sun 30 Oct.", "fact": "1921-10-29T03:35:15Z → 1921-10-30T01:27:22Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:23–00:11 on the 28th, 23:23–00:11 on the 29th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33395 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Saturday 29 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-10-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Saturday 29 October. Caturdaśī runs from 11:35 on Sat 29 Oct to 09:27 on Sun 30 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-10-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11844, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-10-29T11:35:15+08:00", "utc": "1921-10-29T03:35:15Z", "ms": -1520281484570.2446 }, "end": { "local": "1921-10-30T09:27:22+08:00", "utc": "1921-10-30T01:27:22Z", "ms": -1520202757843.9778 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-29T11:35:15+08:00", "utc": "1921-10-29T03:35:15Z", "ms": -1520281484570.2446 }, "end": { "local": "1921-10-30T09:27:22+08:00", "utc": "1921-10-30T01:27:22Z", "ms": -1520202757843.9778 } }, "kaala": "arunodaya", "days": [ { "local_date": "1921-10-29", "window": { "start": { "local": "1921-10-29T04:27:21+08:00", "utc": "1921-10-28T20:27:21Z", "ms": -1520307158841.948 }, "end": { "local": "1921-10-29T06:09:21+08:00", "utc": "1921-10-28T22:09:21Z", "ms": -1520301038770.5457 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "1921-10-30", "window": { "start": { "local": "1921-10-30T04:27:47+08:00", "utc": "1921-10-29T20:27:47Z", "ms": -1520220732694.7107 }, "end": { "local": "1921-10-30T06:09:58+08:00", "utc": "1921-10-29T22:09:58Z", "ms": -1520214601561.136 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:35 on Sat 29 Oct to 09:27 on Sun 30 Oct.", "fact": "1921-10-29T03:35:15Z → 1921-10-30T01:27:22Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:27–06:09 on the 29th, 04:28–06:10 on the 30th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 102 minutes on the 29th and 102 of 102 on the 30th.", "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 11844 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Fuzhou, 1921: Sunday 30 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Naraka Caturdaśī (Choti Diwali) 1921 falls on Sunday 30 October. Caturdaśī runs from 11:35 on Sat 29 Oct to 09:27 on Sun 30 Oct and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28528, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1921-10-30T09:27:22+08:00", "utc": "1921-10-30T01:27:22Z", "ms": -1520202757843.9778 }, "end": { "local": "1921-10-31T07:38:26+08:00", "utc": "1921-10-30T23:38:26Z", "ms": -1520122893574.3694 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-30T09:27:22+08:00", "utc": "1921-10-30T01:27:22Z", "ms": -1520202757843.9778 }, "end": { "local": "1921-10-31T07:38:26+08:00", "utc": "1921-10-30T23:38:26Z", "ms": -1520122893574.3694 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-10-30", "window": { "start": { "local": "1921-10-30T17:22:50+08:00", "utc": "1921-10-30T09:22:50Z", "ms": -1520174229737.0051 }, "end": { "local": "1921-10-30T19:05:12+08:00", "utc": "1921-10-30T11:05:12Z", "ms": -1520168087624.9846 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1921-10-31", "window": { "start": { "local": "1921-10-31T17:22:07+08:00", "utc": "1921-10-31T09:22:07Z", "ms": -1520087873307.52 }, "end": { "local": "1921-10-31T19:04:40+08:00", "utc": "1921-10-31T11:04:40Z", "ms": -1520081720304.7073 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 09:27 on Sun 30 Oct to 07:38 on Mon 31 Oct.", "fact": "1921-10-30T01:27:22Z → 1921-10-30T23:38:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:23–19:05 on the 30th, 17:22–19:05 on the 31st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 102 of 102 minutes on the 30th and 0 of 103 on the 31st.", "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 28528 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Fuzhou, 1921: Sunday 30 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "diwali-lakshmi-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Lakṣmī Pūjā (Diwali) 1921 falls on Sunday 30 October. Amāvasyā runs from 09:27 on Sun 30 Oct to 07:38 on Mon 31 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26863, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1921-10-30T09:27:22+08:00", "utc": "1921-10-30T01:27:22Z", "ms": -1520202757843.9778 }, "end": { "local": "1921-10-31T07:38:26+08:00", "utc": "1921-10-30T23:38:26Z", "ms": -1520122893574.3694 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-30T09:27:22+08:00", "utc": "1921-10-30T01:27:22Z", "ms": -1520202757843.9778 }, "end": { "local": "1921-10-31T07:38:26+08:00", "utc": "1921-10-30T23:38:26Z", "ms": -1520122893574.3694 } }, "kaala": "nishita", "days": [ { "local_date": "1921-10-29", "window": { "start": { "local": "1921-10-29T23:22:47+08:00", "utc": "1921-10-29T15:22:47Z", "ms": -1520239033312.0413 }, "end": { "local": "1921-10-30T00:10:47+08:00", "utc": "1921-10-29T16:10:47Z", "ms": -1520236153312.0413 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-10-30", "window": { "start": { "local": "1921-10-30T23:22:43+08:00", "utc": "1921-10-30T15:22:43Z", "ms": -1520152636816.9277 }, "end": { "local": "1921-10-31T00:10:43+08:00", "utc": "1921-10-30T16:10:43Z", "ms": -1520149756816.9277 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 09:27 on Sun 30 Oct to 07:38 on Mon 31 Oct.", "fact": "1921-10-30T01:27:22Z → 1921-10-30T23:38:26Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:23–00:11 on the 29th, 23:23–00:11 on the 30th.", "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 29th and 48 of 48 on the 30th.", "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 26863 s" }, { "step": "ruling", "text": "Kālī Pūjā, Fuzhou, 1921: Sunday 30 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Kālī Pūjā 1921 falls on Sunday 30 October. Amāvasyā runs from 09:27 on Sun 30 Oct to 07:38 on Mon 31 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13435, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1921-10-31T07:38:26+08:00", "utc": "1921-10-30T23:38:26Z", "ms": -1520122893574.3694 }, "end": { "local": "1921-11-01T06:15:11+08:00", "utc": "1921-10-31T22:15:11Z", "ms": -1520041488604.8315 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-31T07:38:26+08:00", "utc": "1921-10-30T23:38:26Z", "ms": -1520122893574.3694 }, "end": { "local": "1921-11-01T06:15:11+08:00", "utc": "1921-10-31T22:15:11Z", "ms": -1520041488604.8315 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-10-31", "window": { "start": { "local": "1921-10-31T11:22:21+08:00", "utc": "1921-10-31T03:22:21Z", "ms": -1520109458602.1853 }, "end": { "local": "1921-10-31T12:10:21+08:00", "utc": "1921-10-31T04:10:21Z", "ms": -1520106578602.1853 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-11-01", "window": { "start": { "local": "1921-11-01T11:22:19+08:00", "utc": "1921-11-01T03:22:19Z", "ms": -1520023060770.22 }, "end": { "local": "1921-11-01T12:10:19+08:00", "utc": "1921-11-01T04:10:19Z", "ms": -1520020180770.22 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 07:38 on Mon 31 Oct to 06:15 on Tue 1 Nov.", "fact": "1921-10-30T23:38:26Z → 1921-10-31T22:15:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 31st, 11:22–12:10 on the 1st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 13435 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Fuzhou, 1921: Monday 31 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govardhana-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Govardhana Pūjā 1921 falls on Monday 31 October. Pratipadā runs from 07:38 on Mon 31 Oct to 06:15 on Tue 1 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35020, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1921-10-31T07:38:26+08:00", "utc": "1921-10-30T23:38:26Z", "ms": -1520122893574.3694 }, "end": { "local": "1921-11-01T06:15:11+08:00", "utc": "1921-10-31T22:15:11Z", "ms": -1520041488604.8315 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-31T07:38:26+08:00", "utc": "1921-10-30T23:38:26Z", "ms": -1520122893574.3694 }, "end": { "local": "1921-11-01T06:15:11+08:00", "utc": "1921-10-31T22:15:11Z", "ms": -1520041488604.8315 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-10-31", "window": { "start": { "local": "1921-10-31T17:22:07+08:00", "utc": "1921-10-31T09:22:07Z", "ms": -1520087873307.52 }, "end": { "local": "1921-10-31T19:04:40+08:00", "utc": "1921-10-31T11:04:40Z", "ms": -1520081720304.7073 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "1921-11-01", "window": { "start": { "local": "1921-11-01T17:21:24+08:00", "utc": "1921-11-01T09:21:24Z", "ms": -1520001515754.0156 }, "end": { "local": "1921-11-01T19:04:08+08:00", "utc": "1921-11-01T11:04:08Z", "ms": -1519995351952.078 } }, "covered_min": 0, "window_min": 103, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 07:38 on Mon 31 Oct to 06:15 on Tue 1 Nov.", "fact": "1921-10-30T23:38:26Z → 1921-10-31T22:15:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:22–19:05 on the 31st, 17:21–19:04 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 103 of 103 minutes on the 31st and 0 of 103 on the 1st.", "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 35020 s" }, { "step": "ruling", "text": "Bali Pūjā, Fuzhou, 1921: Monday 31 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Bali Pūjā 1921 falls on Monday 31 October. Pratipadā runs from 07:38 on Mon 31 Oct to 06:15 on Tue 1 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-10-31", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 237, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1921-10-31T07:38:26+08:00", "utc": "1921-10-30T23:38:26Z", "ms": -1520122893574.3694 }, "end": { "local": "1921-11-01T06:15:11+08:00", "utc": "1921-10-31T22:15:11Z", "ms": -1520041488604.8315 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-10-31T07:38:26+08:00", "utc": "1921-10-30T23:38:26Z", "ms": -1520122893574.3694 }, "end": { "local": "1921-11-01T06:15:11+08:00", "utc": "1921-10-31T22:15:11Z", "ms": -1520041488604.8315 } }, "kaala": "purvahna", "days": [ { "local_date": "1921-10-31", "window": { "start": { "local": "1921-10-31T06:10:36+08:00", "utc": "1921-10-30T22:10:36Z", "ms": -1520128163896.8506 }, "end": { "local": "1921-10-31T09:54:26+08:00", "utc": "1921-10-31T01:54:26Z", "ms": -1520114733700.407 } }, "covered_min": 136, "window_min": 224, "qualifies": true }, { "local_date": "1921-11-01", "window": { "start": { "local": "1921-11-01T06:11:14+08:00", "utc": "1921-10-31T22:11:14Z", "ms": -1520041725786.4243 }, "end": { "local": "1921-11-01T09:54:38+08:00", "utc": "1921-11-01T01:54:38Z", "ms": -1520028322442.288 } }, "covered_min": 4, "window_min": 223, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 07:38 on Mon 31 Oct to 06:15 on Tue 1 Nov.", "fact": "1921-10-30T23:38:26Z → 1921-10-31T22:15:11Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:11–09:54 on the 31st, 06:11–09:55 on the 1st.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 136 of 224 minutes on the 31st and 4 of 223 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both forenoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 237 s < 300 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Fuzhou, 1921: Monday 31 October.", "fact": "confidence: boundary (margin, 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": "1921-10-31", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-10-31", "confidence": "boundary" } ], "quote": "In Fuzhou, Dyūta Pratipad 1921 falls on Monday 31 October. Pratipadā runs from 07:38 on Mon 31 Oct to 06:15 on Tue 1 Nov and covers 136 of 224 minutes of pūrvāhṇa that forenoon. It also reaches the next forenoon for 4 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 3 min 57 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18428, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1921-11-01T06:15:11+08:00", "utc": "1921-10-31T22:15:11Z", "ms": -1520041488604.8315 }, "end": { "local": "1921-11-02T05:23:57+08:00", "utc": "1921-11-01T21:23:57Z", "ms": -1519958163331.7798 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-01T06:15:11+08:00", "utc": "1921-10-31T22:15:11Z", "ms": -1520041488604.8315 }, "end": { "local": "1921-11-02T05:23:57+08:00", "utc": "1921-11-01T21:23:57Z", "ms": -1519958163331.7798 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-11-01", "window": { "start": { "local": "1921-11-01T11:22:19+08:00", "utc": "1921-11-01T03:22:19Z", "ms": -1520023060770.22 }, "end": { "local": "1921-11-01T12:10:19+08:00", "utc": "1921-11-01T04:10:19Z", "ms": -1520020180770.22 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-11-02", "window": { "start": { "local": "1921-11-02T11:22:18+08:00", "utc": "1921-11-02T03:22:18Z", "ms": -1519936662147.7056 }, "end": { "local": "1921-11-02T12:10:18+08:00", "utc": "1921-11-02T04:10:18Z", "ms": -1519933782147.7056 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 06:15 on Tue 1 Nov to 05:24 on Wed 2 Nov.", "fact": "1921-10-31T22:15:11Z → 1921-11-01T21:23:57Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 1st, 11:22–12:10 on the 2nd.", "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 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 18428 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Fuzhou, 1921: Tuesday 1 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": "1921-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Yama Dvitīyā (Bhai Dooj) 1921 falls on Tuesday 1 November. Dvitīyā runs from 06:15 on Tue 1 Nov to 05:24 on Wed 2 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20758, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-11-03T05:09:55+08:00", "utc": "1921-11-02T21:09:55Z", "ms": -1519872604733.4556 }, "end": { "local": "1921-11-04T05:36:19+08:00", "utc": "1921-11-03T21:36:19Z", "ms": -1519784620934.9204 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-03T05:09:55+08:00", "utc": "1921-11-02T21:09:55Z", "ms": -1519872604733.4556 }, "end": { "local": "1921-11-04T05:36:19+08:00", "utc": "1921-11-03T21:36:19Z", "ms": -1519784620934.9204 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-11-03", "window": { "start": { "local": "1921-11-03T11:22:17+08:00", "utc": "1921-11-03T03:22:17Z", "ms": -1519850262729.3264 }, "end": { "local": "1921-11-03T12:10:17+08:00", "utc": "1921-11-03T04:10:17Z", "ms": -1519847382729.3264 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-11-04", "window": { "start": { "local": "1921-11-04T11:22:17+08:00", "utc": "1921-11-04T03:22:17Z", "ms": -1519763862509.7922 }, "end": { "local": "1921-11-04T12:10:17+08:00", "utc": "1921-11-04T04:10:17Z", "ms": -1519760982509.7922 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:10 on Thu 3 Nov to 05:36 on Fri 4 Nov.", "fact": "1921-11-02T21:09:55Z → 1921-11-03T21:36:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 3rd, 11:22–12:10 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20758 s" }, { "step": "ruling", "text": "Nāga Caturthī, Fuzhou, 1921: Thursday 3 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": "1921-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Nāga Caturthī 1921 falls on Thursday 3 November. Caturthī runs from 05:10 on Thu 3 Nov to 05:36 on Fri 4 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-11-03", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20758, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-11-03T05:09:55+08:00", "utc": "1921-11-02T21:09:55Z", "ms": -1519872604733.4556 }, "end": { "local": "1921-11-04T05:36:19+08:00", "utc": "1921-11-03T21:36:19Z", "ms": -1519784620934.9204 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-03T05:09:55+08:00", "utc": "1921-11-02T21:09:55Z", "ms": -1519872604733.4556 }, "end": { "local": "1921-11-04T05:36:19+08:00", "utc": "1921-11-03T21:36:19Z", "ms": -1519784620934.9204 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-11-03", "window": { "start": { "local": "1921-11-03T11:22:17+08:00", "utc": "1921-11-03T03:22:17Z", "ms": -1519850262729.3264 }, "end": { "local": "1921-11-03T12:10:17+08:00", "utc": "1921-11-03T04:10:17Z", "ms": -1519847382729.3264 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-11-04", "window": { "start": { "local": "1921-11-04T11:22:17+08:00", "utc": "1921-11-04T03:22:17Z", "ms": -1519763862509.7922 }, "end": { "local": "1921-11-04T12:10:17+08:00", "utc": "1921-11-04T04:10:17Z", "ms": -1519760982509.7922 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:10 on Thu 3 Nov to 05:36 on Fri 4 Nov.", "fact": "1921-11-02T21:09:55Z → 1921-11-03T21:36:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 3rd, 11:22–12:10 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20758 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 1921: Thursday 3 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": "1921-11-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 1921 falls on Thursday 3 November. Caturthī runs from 05:10 on Thu 3 Nov to 05:36 on Fri 4 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-11-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10510, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1921-11-05T06:43:18+08:00", "utc": "1921-11-04T22:43:18Z", "ms": -1519694201503.0032 }, "end": { "local": "1921-11-06T08:27:10+08:00", "utc": "1921-11-06T00:27:10Z", "ms": -1519601569805.2717 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-05T06:43:18+08:00", "utc": "1921-11-04T22:43:18Z", "ms": -1519694201503.0032 }, "end": { "local": "1921-11-06T08:27:10+08:00", "utc": "1921-11-06T00:27:10Z", "ms": -1519601569805.2717 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-11-05", "window": { "start": { "local": "1921-11-05T11:22:19+08:00", "utc": "1921-11-05T03:22:19Z", "ms": -1519677461483.8179 }, "end": { "local": "1921-11-05T12:10:19+08:00", "utc": "1921-11-05T04:10:19Z", "ms": -1519674581483.8179 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-11-06", "window": { "start": { "local": "1921-11-06T11:22:20+08:00", "utc": "1921-11-06T03:22:20Z", "ms": -1519591059646.1816 }, "end": { "local": "1921-11-06T12:10:20+08:00", "utc": "1921-11-06T04:10:20Z", "ms": -1519588179646.1816 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 06:43 on Sat 5 Nov to 08:27 on Sun 6 Nov.", "fact": "1921-11-04T22:43:18Z → 1921-11-06T00:27:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 5th, 11:22–12:10 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10510 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Fuzhou, 1921: Saturday 5 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Sūrya Ṣaṣṭhī (Chhath) 1921 falls on Saturday 5 November. Ṣaṣṭhī runs from 06:43 on Sat 5 Nov to 08:27 on Sun 6 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-07", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2549, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1921-11-07T10:39:54+08:00", "utc": "1921-11-07T02:39:54Z", "ms": -1519507206369.0122 }, "end": { "local": "1921-11-08T13:09:38+08:00", "utc": "1921-11-08T05:09:38Z", "ms": -1519411821940.3767 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-07T10:39:54+08:00", "utc": "1921-11-07T02:39:54Z", "ms": -1519507206369.0122 }, "end": { "local": "1921-11-08T13:09:38+08:00", "utc": "1921-11-08T05:09:38Z", "ms": -1519411821940.3767 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-11-07", "window": { "start": { "local": "1921-11-07T11:22:23+08:00", "utc": "1921-11-07T03:22:23Z", "ms": -1519504656991.8213 }, "end": { "local": "1921-11-07T12:10:23+08:00", "utc": "1921-11-07T04:10:23Z", "ms": -1519501776991.8213 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-11-08", "window": { "start": { "local": "1921-11-08T11:22:26+08:00", "utc": "1921-11-08T03:22:26Z", "ms": -1519418253515.929 }, "end": { "local": "1921-11-08T12:10:26+08:00", "utc": "1921-11-08T04:10:26Z", "ms": -1519415373515.929 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 10:40 on Mon 7 Nov to 13:10 on Tue 8 Nov.", "fact": "1921-11-07T02:39:54Z → 1921-11-08T05:09:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 7th, 11:22–12:10 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 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": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 2549 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Fuzhou, 1921: Monday 7 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1921-11-07", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-07", "confidence": "boundary" } ], "quote": "In Fuzhou, Gopāṣṭamī 1921 falls on Monday 7 November. Aṣṭamī runs from 10:40 on Mon 7 Nov to 13:10 on Tue 8 Nov 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/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11603, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1921-11-08T13:09:38+08:00", "utc": "1921-11-08T05:09:38Z", "ms": -1519411821940.3767 }, "end": { "local": "1921-11-09T15:42:08+08:00", "utc": "1921-11-09T07:42:08Z", "ms": -1519316272183.0542 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-08T13:09:38+08:00", "utc": "1921-11-08T05:09:38Z", "ms": -1519411821940.3767 }, "end": { "local": "1921-11-09T15:42:08+08:00", "utc": "1921-11-09T07:42:08Z", "ms": -1519316272183.0542 } }, "kaala": "purvahna", "days": [ { "local_date": "1921-11-08", "window": { "start": { "local": "1921-11-08T06:15:53+08:00", "utc": "1921-11-07T22:15:53Z", "ms": -1519436647386.1724 }, "end": { "local": "1921-11-08T09:56:15+08:00", "utc": "1921-11-08T01:56:15Z", "ms": -1519423424806.01 } }, "covered_min": 0, "window_min": 220, "qualifies": false }, { "local_date": "1921-11-09", "window": { "start": { "local": "1921-11-09T06:16:34+08:00", "utc": "1921-11-08T22:16:34Z", "ms": -1519350206088.4663 }, "end": { "local": "1921-11-09T09:56:32+08:00", "utc": "1921-11-09T01:56:32Z", "ms": -1519337008172.1726 } }, "covered_min": 220, "window_min": 220, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 13:10 on Tue 8 Nov to 15:42 on Wed 9 Nov.", "fact": "1921-11-08T05:09:38Z → 1921-11-09T07:42:08Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:16–09:56 on the 8th, 06:17–09:57 on the 9th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 0 of 220 minutes on the 8th and 220 of 220 on the 9th.", "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 11603 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Fuzhou, 1921: Wednesday 9 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": "1921-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Akṣaya Navamī (Amla Navami) 1921 falls on Wednesday 9 November. Navamī runs from 13:10 on Tue 8 Nov to 15:42 on Wed 9 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3552, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1921-11-08T13:09:38+08:00", "utc": "1921-11-08T05:09:38Z", "ms": -1519411821940.3767 }, "end": { "local": "1921-11-09T15:42:08+08:00", "utc": "1921-11-09T07:42:08Z", "ms": -1519316272183.0542 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-08T13:09:38+08:00", "utc": "1921-11-08T05:09:38Z", "ms": -1519411821940.3767 }, "end": { "local": "1921-11-09T15:42:08+08:00", "utc": "1921-11-09T07:42:08Z", "ms": -1519316272183.0542 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-11-08", "window": { "start": { "local": "1921-11-08T11:22:26+08:00", "utc": "1921-11-08T03:22:26Z", "ms": -1519418253515.929 }, "end": { "local": "1921-11-08T12:10:26+08:00", "utc": "1921-11-08T04:10:26Z", "ms": -1519415373515.929 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-11-09", "window": { "start": { "local": "1921-11-09T11:22:31+08:00", "utc": "1921-11-09T03:22:31Z", "ms": -1519331849214.026 }, "end": { "local": "1921-11-09T12:10:31+08:00", "utc": "1921-11-09T04:10:31Z", "ms": -1519328969214.026 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 13:10 on Tue 8 Nov to 15:42 on Wed 9 Nov.", "fact": "1921-11-08T05:09:38Z → 1921-11-09T07:42:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 8th, 11:23–12:11 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3552 s" }, { "step": "ruling", "text": "Durgā Navamī, Fuzhou, 1921: Wednesday 9 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": "1921-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Durgā Navamī 1921 falls on Wednesday 9 November. Navamī runs from 13:10 on Tue 8 Nov to 15:42 on Wed 9 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-11-11", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37175, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-11-10T18:02:50+08:00", "utc": "1921-11-10T10:02:50Z", "ms": -1519221430345.4084 }, "end": { "local": "1921-11-11T19:59:05+08:00", "utc": "1921-11-11T11:59:05Z", "ms": -1519128055322.8975 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-10T18:02:50+08:00", "utc": "1921-11-10T10:02:50Z", "ms": -1519221430345.4084 }, "end": { "local": "1921-11-11T19:59:05+08:00", "utc": "1921-11-11T11:59:05Z", "ms": -1519128055322.8975 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-11-11", "window": { "start": { "local": "1921-11-11T06:17:58+08:00", "utc": "1921-11-10T22:17:58Z", "ms": -1519177322472.6765 }, "end": { "local": "1921-11-11T06:17:58+08:00", "utc": "1921-11-10T22:17:58Z", "ms": -1519177322472.6765 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-11-12", "window": { "start": { "local": "1921-11-12T06:18:40+08:00", "utc": "1921-11-11T22:18:40Z", "ms": -1519090880182.397 }, "end": { "local": "1921-11-12T06:18:40+08:00", "utc": "1921-11-11T22:18:40Z", "ms": -1519090880182.397 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:03 on Thu 10 Nov to 19:59 on Fri 11 Nov.", "fact": "1921-11-10T10:02:50Z → 1921-11-11T11:59:05Z" }, { "step": "kaala", "text": "Sunrise is at 06:18 on the 11th and 06:19 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 37175 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Fuzhou, 1921: Friday 11 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": "1921-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Prabodhinī Ekādaśī 1921 falls on Friday 11 November. Ekādaśī runs from 18:03 on Thu 10 Nov to 19:59 on Fri 11 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-11-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-11-13", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8533, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-11-12T21:21:46+08:00", "utc": "1921-11-12T13:21:46Z", "ms": -1519036694472.2144 }, "end": { "local": "1921-11-13T22:05:58+08:00", "utc": "1921-11-13T14:05:58Z", "ms": -1518947642083.4094 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-12T21:21:46+08:00", "utc": "1921-11-12T13:21:46Z", "ms": -1519036694472.2144 }, "end": { "local": "1921-11-13T22:05:58+08:00", "utc": "1921-11-13T14:05:58Z", "ms": -1518947642083.4094 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-11-12", "window": { "start": { "local": "1921-11-12T17:14:58+08:00", "utc": "1921-11-12T09:14:58Z", "ms": -1519051502443.7627 }, "end": { "local": "1921-11-12T18:59:33+08:00", "utc": "1921-11-12T10:59:33Z", "ms": -1519045227129.9155 } }, "covered_min": 0, "window_min": 105, "qualifies": false }, { "local_date": "1921-11-13", "window": { "start": { "local": "1921-11-13T17:14:30+08:00", "utc": "1921-11-13T09:14:30Z", "ms": -1518965129749.7366 }, "end": { "local": "1921-11-13T18:59:15+08:00", "utc": "1921-11-13T10:59:15Z", "ms": -1518958845077.817 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:22 on Sat 12 Nov to 22:06 on Sun 13 Nov.", "fact": "1921-11-12T13:21:46Z → 1921-11-13T14:05:58Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:15–19:00 on the 12th, 17:15–18:59 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 105 minutes on the 12th and 105 of 105 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8533 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Sunday 13 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": "1921-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Sunday 13 November. Trayodaśī runs from 21:22 on Sat 12 Nov to 22:06 on Sun 13 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-11-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4357, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-11-14T22:10:50+08:00", "utc": "1921-11-14T14:10:50Z", "ms": -1518860950126.2307 }, "end": { "local": "1921-11-15T21:38:47+08:00", "utc": "1921-11-15T13:38:47Z", "ms": -1518776472853.0369 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-14T22:10:50+08:00", "utc": "1921-11-14T14:10:50Z", "ms": -1518860950126.2307 }, "end": { "local": "1921-11-15T21:38:47+08:00", "utc": "1921-11-15T13:38:47Z", "ms": -1518776472853.0369 } }, "kaala": "nishita", "days": [ { "local_date": "1921-11-14", "window": { "start": { "local": "1921-11-14T23:23:26+08:00", "utc": "1921-11-14T15:23:26Z", "ms": -1518856593608.208 }, "end": { "local": "1921-11-15T00:11:26+08:00", "utc": "1921-11-14T16:11:26Z", "ms": -1518853713608.208 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-11-15", "window": { "start": { "local": "1921-11-15T23:23:36+08:00", "utc": "1921-11-15T15:23:36Z", "ms": -1518770184149.407 }, "end": { "local": "1921-11-16T00:11:36+08:00", "utc": "1921-11-15T16:11:36Z", "ms": -1518767304149.407 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:11 on Mon 14 Nov to 21:39 on Tue 15 Nov.", "fact": "1921-11-14T14:10:50Z → 1921-11-15T13:38:47Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:23–00:11 on the 14th, 23:24–00:12 on the 15th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 48 of 48 minutes on the 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 night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4357 s" }, { "step": "ruling", "text": "Rāsayātrā, Fuzhou, 1921: Monday 14 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rasayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima." } ], "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Rāsayātrā 1921 falls on Monday 14 November. Pūrṇimā runs from 22:11 on Mon 14 Nov to 21:39 on Tue 15 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34053, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-11-14T22:10:50+08:00", "utc": "1921-11-14T14:10:50Z", "ms": -1518860950126.2307 }, "end": { "local": "1921-11-15T21:38:47+08:00", "utc": "1921-11-15T13:38:47Z", "ms": -1518776472853.0369 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1921-11-14T22:10:50+08:00", "utc": "1921-11-14T14:10:50Z", "ms": -1518860950126.2307 }, "end": { "local": "1921-11-15T21:38:47+08:00", "utc": "1921-11-15T13:38:47Z", "ms": -1518776472853.0369 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-11-14", "window": { "start": { "local": "1921-11-14T11:23:05+08:00", "utc": "1921-11-14T03:23:05Z", "ms": -1518899815183.7236 }, "end": { "local": "1921-11-14T12:11:05+08:00", "utc": "1921-11-14T04:11:05Z", "ms": -1518896935183.7236 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-11-15", "window": { "start": { "local": "1921-11-15T11:23:14+08:00", "utc": "1921-11-15T03:23:14Z", "ms": -1518813405852.5332 }, "end": { "local": "1921-11-15T12:11:14+08:00", "utc": "1921-11-15T04:11:14Z", "ms": -1518810525852.5332 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:11 on Mon 14 Nov to 21:39 on Tue 15 Nov.", "fact": "1921-11-14T14:10:50Z → 1921-11-15T13:38:47Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:23–12:11 on the 14th, 11:23–12:11 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34053 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Fuzhou, 1921: Tuesday 15 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": "1921-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Kārtikī Pūrṇimā 1921 falls on Tuesday 15 November. Pūrṇimā runs from 22:11 on Mon 14 Nov to 21:39 on Tue 15 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-11-18", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9457, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-11-18T17:14:46+08:00", "utc": "1921-11-18T09:14:46Z", "ms": -1518533114232.518 }, "end": { "local": "1921-11-19T15:12:23+08:00", "utc": "1921-11-19T07:12:23Z", "ms": -1518454057285.956 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-11-18T17:14:46+08:00", "utc": "1921-11-18T09:14:46Z", "ms": -1518533114232.518 }, "end": { "local": "1921-11-19T15:12:23+08:00", "utc": "1921-11-19T07:12:23Z", "ms": -1518454057285.956 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-11-18", "window": { "start": { "local": "1921-11-18T19:52:23+08:00", "utc": "1921-11-18T11:52:23Z", "ms": -1518523656901.0269 }, "end": { "local": "1921-11-18T19:52:23+08:00", "utc": "1921-11-18T11:52:23Z", "ms": -1518523656901.0269 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-11-19", "window": { "start": { "local": "1921-11-19T20:52:28+08:00", "utc": "1921-11-19T12:52:28Z", "ms": -1518433652308.3914 }, "end": { "local": "1921-11-19T20:52:28+08:00", "utc": "1921-11-19T12:52:28Z", "ms": -1518433652308.3914 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:15 on Fri 18 Nov to 15:12 on Sat 19 Nov.", "fact": "1921-11-18T09:14:46Z → 1921-11-19T07:12:23Z" }, { "step": "kaala", "text": "Moonrise is at 19:52 on the 18th and 20:52 on the 19th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 18th and is not on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9457 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Friday 18 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": "1921-11-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Friday 18 November. Caturthī runs from 17:15 on Fri 18 Nov to 15:12 on Sat 19 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-11-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ekadashi?on=1921-11-25", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12770, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-11-25T02:55:21+08:00", "utc": "1921-11-24T18:55:21Z", "ms": -1517979879168.504 }, "end": { "local": "1921-11-26T01:18:03+08:00", "utc": "1921-11-25T17:18:03Z", "ms": -1517899316688.8257 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-11-25T02:55:21+08:00", "utc": "1921-11-24T18:55:21Z", "ms": -1517979879168.504 }, "end": { "local": "1921-11-26T01:18:03+08:00", "utc": "1921-11-25T17:18:03Z", "ms": -1517899316688.8257 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-11-25", "window": { "start": { "local": "1921-11-25T06:28:11+08:00", "utc": "1921-11-24T22:28:11Z", "ms": -1517967109331.61 }, "end": { "local": "1921-11-25T06:28:11+08:00", "utc": "1921-11-24T22:28:11Z", "ms": -1517967109331.61 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1921-11-26", "window": { "start": { "local": "1921-11-26T06:28:55+08:00", "utc": "1921-11-25T22:28:55Z", "ms": -1517880664583.5837 }, "end": { "local": "1921-11-26T06:28:55+08:00", "utc": "1921-11-25T22:28:55Z", "ms": -1517880664583.5837 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:55 on Fri 25 Nov to 01:18 on Sat 26 Nov.", "fact": "1921-11-24T18:55:21Z → 1921-11-25T17:18:03Z" }, { "step": "kaala", "text": "Sunrise is at 06:28 on the 25th and 06:29 on the 26th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 25th and is not on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12770 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Fuzhou, 1921: Friday 25 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": "1921-11-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Utpannā Ekādaśī 1921 falls on Friday 25 November. Ekādaśī runs from 02:55 on Fri 25 Nov to 01:18 on Sat 26 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-11-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-11-27", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13579, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-11-26T23:53:14+08:00", "utc": "1921-11-26T15:53:14Z", "ms": -1517818005921.3767 }, "end": { "local": "1921-11-27T22:43:40+08:00", "utc": "1921-11-27T14:43:40Z", "ms": -1517735780395.0344 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-11-26T23:53:14+08:00", "utc": "1921-11-26T15:53:14Z", "ms": -1517818005921.3767 }, "end": { "local": "1921-11-27T22:43:40+08:00", "utc": "1921-11-27T14:43:40Z", "ms": -1517735780395.0344 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-11-26", "window": { "start": { "local": "1921-11-26T17:10:49+08:00", "utc": "1921-11-26T09:10:49Z", "ms": -1517842150968.909 }, "end": { "local": "1921-11-26T18:57:20+08:00", "utc": "1921-11-26T10:57:20Z", "ms": -1517835760155.272 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1921-11-27", "window": { "start": { "local": "1921-11-27T17:10:43+08:00", "utc": "1921-11-27T09:10:43Z", "ms": -1517755757238.4421 }, "end": { "local": "1921-11-27T18:57:20+08:00", "utc": "1921-11-27T10:57:20Z", "ms": -1517749359635.8413 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:53 on Sat 26 Nov to 22:44 on Sun 27 Nov.", "fact": "1921-11-26T15:53:14Z → 1921-11-27T14:43:40Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:11–18:57 on the 26th, 17:11–18:57 on the 27th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 107 minutes on the 26th and 107 of 107 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 13579 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Sunday 27 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": "1921-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Sunday 27 November. Trayodaśī runs from 23:53 on Sat 26 Nov to 22:44 on Sun 27 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-11-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-11-27", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2574, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-11-27T22:43:40+08:00", "utc": "1921-11-27T14:43:40Z", "ms": -1517735780395.0344 }, "end": { "local": "1921-11-28T21:52:57+08:00", "utc": "1921-11-28T13:52:57Z", "ms": -1517652423309.255 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-11-27T22:43:40+08:00", "utc": "1921-11-27T14:43:40Z", "ms": -1517735780395.0344 }, "end": { "local": "1921-11-28T21:52:57+08:00", "utc": "1921-11-28T13:52:57Z", "ms": -1517652423309.255 } }, "kaala": "nishita", "days": [ { "local_date": "1921-11-27", "window": { "start": { "local": "1921-11-27T23:26:34+08:00", "utc": "1921-11-27T15:26:34Z", "ms": -1517733206228.689 }, "end": { "local": "1921-11-28T00:14:34+08:00", "utc": "1921-11-27T16:14:34Z", "ms": -1517730326228.689 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-11-28", "window": { "start": { "local": "1921-11-28T23:26:54+08:00", "utc": "1921-11-28T15:26:54Z", "ms": -1517646786313.7705 }, "end": { "local": "1921-11-29T00:14:54+08:00", "utc": "1921-11-28T16:14:54Z", "ms": -1517643906313.7705 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:44 on Sun 27 Nov to 21:53 on Mon 28 Nov.", "fact": "1921-11-27T14:43:40Z → 1921-11-28T13:52:57Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:27–00:15 on the 27th, 23:27–00:15 on the 28th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2574 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Sunday 27 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": "1921-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-11-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Sunday 27 November. Caturdaśī runs from 22:44 on Sun 27 Nov to 21:53 on Mon 28 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-11-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-12-03", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38765, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-12-02T23:03:04+08:00", "utc": "1921-12-02T15:03:04Z", "ms": -1517302616246.3198 }, "end": { "local": "1921-12-04T00:42:41+08:00", "utc": "1921-12-03T16:42:41Z", "ms": -1517210239099.2388 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-02T23:03:04+08:00", "utc": "1921-12-02T15:03:04Z", "ms": -1517302616246.3198 }, "end": { "local": "1921-12-04T00:42:41+08:00", "utc": "1921-12-03T16:42:41Z", "ms": -1517210239099.2388 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-12-03", "window": { "start": { "local": "1921-12-03T11:28:22+08:00", "utc": "1921-12-03T03:28:22Z", "ms": -1517257898342.5151 }, "end": { "local": "1921-12-03T12:16:22+08:00", "utc": "1921-12-03T04:16:22Z", "ms": -1517255018342.5151 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-12-04", "window": { "start": { "local": "1921-12-04T11:28:46+08:00", "utc": "1921-12-04T03:28:46Z", "ms": -1517171474385.952 }, "end": { "local": "1921-12-04T12:16:46+08:00", "utc": "1921-12-04T04:16:46Z", "ms": -1517168594385.952 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:03 on Fri 2 Dec to 00:43 on Sun 4 Dec.", "fact": "1921-12-02T15:03:04Z → 1921-12-03T16:42:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 on the 3rd, 11:29–12:17 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38765 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 1921: Saturday 3 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": "1921-12-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 1921 falls on Saturday 3 December. Caturthī runs from 23:03 on Fri 2 Dec to 00:43 on Sun 4 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/vinayaka-chaturthi?on=1921-12-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31032, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1921-12-04T00:42:41+08:00", "utc": "1921-12-03T16:42:41Z", "ms": -1517210239099.2388 }, "end": { "local": "1921-12-05T02:51:58+08:00", "utc": "1921-12-04T18:51:58Z", "ms": -1517116081543.946 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-04T00:42:41+08:00", "utc": "1921-12-03T16:42:41Z", "ms": -1517210239099.2388 }, "end": { "local": "1921-12-05T02:51:58+08:00", "utc": "1921-12-04T18:51:58Z", "ms": -1517116081543.946 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-12-04", "window": { "start": { "local": "1921-12-04T11:28:46+08:00", "utc": "1921-12-04T03:28:46Z", "ms": -1517171474385.952 }, "end": { "local": "1921-12-04T12:16:46+08:00", "utc": "1921-12-04T04:16:46Z", "ms": -1517168594385.952 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-12-05", "window": { "start": { "local": "1921-12-05T11:29:10+08:00", "utc": "1921-12-05T03:29:10Z", "ms": -1517085049852.639 }, "end": { "local": "1921-12-05T12:17:10+08:00", "utc": "1921-12-05T04:17:10Z", "ms": -1517082169852.639 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 00:43 on Sun 4 Dec to 02:52 on Mon 5 Dec.", "fact": "1921-12-03T16:42:41Z → 1921-12-04T18:51:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 4th, 11:29–12:17 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31032 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Fuzhou, 1921: Sunday 4 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": "1921-12-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Nāga Pañcamī (Mārgaśīrṣa) 1921 falls on Sunday 4 December. Pañcamī runs from 00:43 on Sun 4 Dec to 02:52 on Mon 5 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22031, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1921-12-05T02:51:58+08:00", "utc": "1921-12-04T18:51:58Z", "ms": -1517116081543.946 }, "end": { "local": "1921-12-06T05:22:24+08:00", "utc": "1921-12-05T21:22:24Z", "ms": -1517020656063.4685 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-05T02:51:58+08:00", "utc": "1921-12-04T18:51:58Z", "ms": -1517116081543.946 }, "end": { "local": "1921-12-06T05:22:24+08:00", "utc": "1921-12-05T21:22:24Z", "ms": -1517020656063.4685 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-12-05", "window": { "start": { "local": "1921-12-05T11:29:10+08:00", "utc": "1921-12-05T03:29:10Z", "ms": -1517085049852.639 }, "end": { "local": "1921-12-05T12:17:10+08:00", "utc": "1921-12-05T04:17:10Z", "ms": -1517082169852.639 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-12-06", "window": { "start": { "local": "1921-12-06T11:29:35+08:00", "utc": "1921-12-06T03:29:35Z", "ms": -1516998624768.711 }, "end": { "local": "1921-12-06T12:17:35+08:00", "utc": "1921-12-06T04:17:35Z", "ms": -1516995744768.711 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 02:52 on Mon 5 Dec to 05:22 on Tue 6 Dec.", "fact": "1921-12-04T18:51:58Z → 1921-12-05T21:22:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 5th, 11:30–12:18 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22031 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Fuzhou, 1921: Monday 5 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "champa-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "not_evaluated": "The row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-12-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Campā Ṣaṣṭhī 1921 falls on Monday 5 December. Ṣaṣṭhī runs from 02:52 on Mon 5 Dec to 05:22 on Tue 6 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22031, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1921-12-05T02:51:58+08:00", "utc": "1921-12-04T18:51:58Z", "ms": -1517116081543.946 }, "end": { "local": "1921-12-06T05:22:24+08:00", "utc": "1921-12-05T21:22:24Z", "ms": -1517020656063.4685 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-05T02:51:58+08:00", "utc": "1921-12-04T18:51:58Z", "ms": -1517116081543.946 }, "end": { "local": "1921-12-06T05:22:24+08:00", "utc": "1921-12-05T21:22:24Z", "ms": -1517020656063.4685 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-12-05", "window": { "start": { "local": "1921-12-05T11:29:10+08:00", "utc": "1921-12-05T03:29:10Z", "ms": -1517085049852.639 }, "end": { "local": "1921-12-05T12:17:10+08:00", "utc": "1921-12-05T04:17:10Z", "ms": -1517082169852.639 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-12-06", "window": { "start": { "local": "1921-12-06T11:29:35+08:00", "utc": "1921-12-06T03:29:35Z", "ms": -1516998624768.711 }, "end": { "local": "1921-12-06T12:17:35+08:00", "utc": "1921-12-06T04:17:35Z", "ms": -1516995744768.711 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 02:52 on Mon 5 Dec to 05:22 on Tue 6 Dec.", "fact": "1921-12-04T18:51:58Z → 1921-12-05T21:22:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 5th, 11:30–12:18 on the 6th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 22031 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Fuzhou, 1921: Monday 5 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-12-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Skanda Ṣaṣṭhī 1921 falls on Monday 5 December. Ṣaṣṭhī runs from 02:52 on Mon 5 Dec to 05:22 on Tue 6 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12523, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1921-12-06T05:22:24+08:00", "utc": "1921-12-05T21:22:24Z", "ms": -1517020656063.4685 }, "end": { "local": "1921-12-07T08:01:18+08:00", "utc": "1921-12-07T00:01:18Z", "ms": -1516924721971.8433 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-06T05:22:24+08:00", "utc": "1921-12-05T21:22:24Z", "ms": -1517020656063.4685 }, "end": { "local": "1921-12-07T08:01:18+08:00", "utc": "1921-12-07T00:01:18Z", "ms": -1516924721971.8433 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-12-06", "window": { "start": { "local": "1921-12-06T11:29:35+08:00", "utc": "1921-12-06T03:29:35Z", "ms": -1516998624768.711 }, "end": { "local": "1921-12-06T12:17:35+08:00", "utc": "1921-12-06T04:17:35Z", "ms": -1516995744768.711 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-12-07", "window": { "start": { "local": "1921-12-07T11:30:01+08:00", "utc": "1921-12-07T03:30:01Z", "ms": -1516912199160.9385 }, "end": { "local": "1921-12-07T12:18:01+08:00", "utc": "1921-12-07T04:18:01Z", "ms": -1516909319160.9385 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 05:22 on Tue 6 Dec to 08:01 on Wed 7 Dec.", "fact": "1921-12-05T21:22:24Z → 1921-12-07T00:01:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 6th, 11:30–12:18 on the 7th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12523 s" }, { "step": "ruling", "text": "Mitra Saptamī, Fuzhou, 1921: Tuesday 6 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mitra-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Mitra saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-12-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Mitra Saptamī 1921 falls on Tuesday 6 December. Saptamī runs from 05:22 on Tue 6 Dec to 08:01 on Wed 7 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/ekadashi?on=1921-12-11", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27495, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-12-10T14:17:15+08:00", "utc": "1921-12-10T06:17:15Z", "ms": -1516642965278.379 }, "end": { "local": "1921-12-11T15:06:54+08:00", "utc": "1921-12-11T07:06:54Z", "ms": -1516553586468.7288 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-10T14:17:15+08:00", "utc": "1921-12-10T06:17:15Z", "ms": -1516642965278.379 }, "end": { "local": "1921-12-11T15:06:54+08:00", "utc": "1921-12-11T07:06:54Z", "ms": -1516553586468.7288 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-12-10", "window": { "start": { "local": "1921-12-10T06:39:00+08:00", "utc": "1921-12-09T22:39:00Z", "ms": -1516670459876.1155 }, "end": { "local": "1921-12-10T06:39:00+08:00", "utc": "1921-12-09T22:39:00Z", "ms": -1516670459876.1155 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-12-11", "window": { "start": { "local": "1921-12-11T06:39:40+08:00", "utc": "1921-12-10T22:39:40Z", "ms": -1516584019898.8726 }, "end": { "local": "1921-12-11T06:39:40+08:00", "utc": "1921-12-10T22:39:40Z", "ms": -1516584019898.8726 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:17 on Sat 10 Dec to 15:07 on Sun 11 Dec.", "fact": "1921-12-10T06:17:15Z → 1921-12-11T07:06:54Z" }, { "step": "kaala", "text": "Sunrise is at 06:39 on the 10th and 06:40 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 27495 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Fuzhou, 1921: Sunday 11 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": "1921-12-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Mokṣadā Ekādaśī 1921 falls on Sunday 11 December. Ekādaśī runs from 14:17 on Sat 10 Dec to 15:07 on Sun 11 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-12-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10026, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1921-12-11T15:06:54+08:00", "utc": "1921-12-11T07:06:54Z", "ms": -1516553586468.7288 }, "end": { "local": "1921-12-12T15:08:12+08:00", "utc": "1921-12-12T07:08:12Z", "ms": -1516467107614.9602 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-11T15:06:54+08:00", "utc": "1921-12-11T07:06:54Z", "ms": -1516553586468.7288 }, "end": { "local": "1921-12-12T15:08:12+08:00", "utc": "1921-12-12T07:08:12Z", "ms": -1516467107614.9602 } }, "kaala": "madhyahna", "days": [ { "local_date": "1921-12-11", "window": { "start": { "local": "1921-12-11T11:31:48+08:00", "utc": "1921-12-11T03:31:48Z", "ms": -1516566492037.984 }, "end": { "local": "1921-12-11T12:19:48+08:00", "utc": "1921-12-11T04:19:48Z", "ms": -1516563612037.984 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1921-12-12", "window": { "start": { "local": "1921-12-12T11:32:16+08:00", "utc": "1921-12-12T03:32:16Z", "ms": -1516480064222.9253 }, "end": { "local": "1921-12-12T12:20:16+08:00", "utc": "1921-12-12T04:20:16Z", "ms": -1516477184222.9253 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 15:07 on Sun 11 Dec to 15:08 on Mon 12 Dec.", "fact": "1921-12-11T07:06:54Z → 1921-12-12T07:08:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:32–12:20 on the 11th, 11:32–12:20 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.", "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 10026 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Fuzhou, 1921: Monday 12 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": "1921-12-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Akhaṇḍa Dvādaśī 1921 falls on Monday 12 December. Dvādaśī runs from 15:07 on Sun 11 Dec to 15:08 on Mon 12 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-12-12", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7440, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-12-12T15:08:12+08:00", "utc": "1921-12-12T07:08:12Z", "ms": -1516467107614.9602 }, "end": { "local": "1921-12-13T14:22:11+08:00", "utc": "1921-12-13T06:22:11Z", "ms": -1516383469323.112 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-12T15:08:12+08:00", "utc": "1921-12-12T07:08:12Z", "ms": -1516467107614.9602 }, "end": { "local": "1921-12-13T14:22:11+08:00", "utc": "1921-12-13T06:22:11Z", "ms": -1516383469323.112 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-12-12", "window": { "start": { "local": "1921-12-12T17:12:12+08:00", "utc": "1921-12-12T09:12:12Z", "ms": -1516459667877.9094 }, "end": { "local": "1921-12-12T19:00:02+08:00", "utc": "1921-12-12T11:00:02Z", "ms": -1516453197750.3877 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1921-12-13", "window": { "start": { "local": "1921-12-13T17:12:30+08:00", "utc": "1921-12-13T09:12:30Z", "ms": -1516373250177.982 }, "end": { "local": "1921-12-13T19:00:23+08:00", "utc": "1921-12-13T11:00:23Z", "ms": -1516366777353.805 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:08 on Mon 12 Dec to 14:22 on Tue 13 Dec.", "fact": "1921-12-12T07:08:12Z → 1921-12-13T06:22:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:12–19:00 on the 12th, 17:12–19:00 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 108 of 108 minutes on the 12th and 0 of 108 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7440 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 1921: Monday 12 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": "1921-12-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 1921 falls on Monday 12 December. Trayodaśī runs from 15:08 on Mon 12 Dec to 14:22 on Tue 13 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-12-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15549, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1921-12-14T12:53:40+08:00", "utc": "1921-12-14T04:53:40Z", "ms": -1516302379778.9202 }, "end": { "local": "1921-12-15T10:50:14+08:00", "utc": "1921-12-15T02:50:14Z", "ms": -1516223386059.3904 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-14T12:53:40+08:00", "utc": "1921-12-14T04:53:40Z", "ms": -1516302379778.9202 }, "end": { "local": "1921-12-15T10:50:14+08:00", "utc": "1921-12-15T02:50:14Z", "ms": -1516223386059.3904 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-12-14", "window": { "start": { "local": "1921-12-14T17:12:49+08:00", "utc": "1921-12-14T09:12:49Z", "ms": -1516286831095.3494 }, "end": { "local": "1921-12-14T19:00:44+08:00", "utc": "1921-12-14T11:00:44Z", "ms": -1516280355859.9019 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1921-12-15", "window": { "start": { "local": "1921-12-15T17:13:09+08:00", "utc": "1921-12-15T09:13:09Z", "ms": -1516200410648.749 }, "end": { "local": "1921-12-15T19:01:07+08:00", "utc": "1921-12-15T11:01:07Z", "ms": -1516193933289.6135 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 12:54 on Wed 14 Dec to 10:50 on Thu 15 Dec.", "fact": "1921-12-14T04:53:40Z → 1921-12-15T02:50:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:13–19:01 on the 14th, 17:13–19:01 on the 15th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 108 of 108 minutes on the 14th and 0 of 108 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15549 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Fuzhou, 1921: Wednesday 14 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": "1921-12-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Dattātreyotpatti (Datta Jayanti) 1921 falls on Wednesday 14 December. Pūrṇimā runs from 12:54 on Wed 14 Dec to 10:50 on Thu 15 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/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": "/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-12-18", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11222, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1921-12-18T02:43:43+08:00", "utc": "1921-12-17T18:43:43Z", "ms": -1515993377096.974 }, "end": { "local": "1921-12-18T23:54:09+08:00", "utc": "1921-12-18T15:54:09Z", "ms": -1515917151018.7346 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-18T02:43:43+08:00", "utc": "1921-12-17T18:43:43Z", "ms": -1515993377096.974 }, "end": { "local": "1921-12-18T23:54:09+08:00", "utc": "1921-12-18T15:54:09Z", "ms": -1515917151018.7346 } }, "kaala": "moonrise", "days": [ { "local_date": "1921-12-17", "window": { "start": { "local": "1921-12-17T19:43:07+08:00", "utc": "1921-12-17T11:43:07Z", "ms": -1516018612809.2588 }, "end": { "local": "1921-12-17T19:43:07+08:00", "utc": "1921-12-17T11:43:07Z", "ms": -1516018612809.2588 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-12-18", "window": { "start": { "local": "1921-12-18T20:47:07+08:00", "utc": "1921-12-18T12:47:07Z", "ms": -1515928373176.7441 }, "end": { "local": "1921-12-18T20:47:07+08:00", "utc": "1921-12-18T12:47:07Z", "ms": -1515928373176.7441 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:44 on Sun 18 Dec to 23:54 on Sun 18 Dec.", "fact": "1921-12-17T18:43:43Z → 1921-12-18T15:54:09Z" }, { "step": "kaala", "text": "Moonrise is at 19:43 on the 17th and 20:47 on the 18th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 17th and is on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11222 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 1921: Sunday 18 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": "1921-12-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 1921 falls on Sunday 18 December. Caturthī runs from 02:44 on Sun 18 Dec to 23:54 on Sun 18 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/sankashta-chaturthi?on=1921-12-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/ekadashi?on=1921-12-25", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19826, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1921-12-24T12:52:02+08:00", "utc": "1921-12-24T04:52:02Z", "ms": -1515438478387.8755 }, "end": { "local": "1921-12-25T12:18:02+08:00", "utc": "1921-12-25T04:18:02Z", "ms": -1515354118085.3186 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-24T12:52:02+08:00", "utc": "1921-12-24T04:52:02Z", "ms": -1515438478387.8755 }, "end": { "local": "1921-12-25T12:18:02+08:00", "utc": "1921-12-25T04:18:02Z", "ms": -1515354118085.3186 } }, "kaala": "sunrise", "days": [ { "local_date": "1921-12-24", "window": { "start": { "local": "1921-12-24T06:47:08+08:00", "utc": "1921-12-23T22:47:08Z", "ms": -1515460372153.2844 }, "end": { "local": "1921-12-24T06:47:08+08:00", "utc": "1921-12-23T22:47:08Z", "ms": -1515460372153.2844 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1921-12-25", "window": { "start": { "local": "1921-12-25T06:47:36+08:00", "utc": "1921-12-24T22:47:36Z", "ms": -1515373944475.9805 }, "end": { "local": "1921-12-25T06:47:36+08:00", "utc": "1921-12-24T22:47:36Z", "ms": -1515373944475.9805 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:52 on Sat 24 Dec to 12:18 on Sun 25 Dec.", "fact": "1921-12-24T04:52:02Z → 1921-12-25T04:18:02Z" }, { "step": "kaala", "text": "Sunrise is at 06:47 on the 24th and 06:48 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 19826 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Fuzhou, 1921: Sunday 25 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": "1921-12-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Saphalā Ekādaśī 1921 falls on Sunday 25 December. Ekādaśī runs from 12:52 on Sat 24 Dec to 12:18 on Sun 25 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/1921/ekadashi?on=1921-12-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/pradosha-vrata?on=1921-12-26", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18322, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1921-12-26T12:05:08+08:00", "utc": "1921-12-26T04:05:08Z", "ms": -1515268491887.7483 }, "end": { "local": "1921-12-27T12:13:31+08:00", "utc": "1921-12-27T04:13:31Z", "ms": -1515181589358.5486 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-26T12:05:08+08:00", "utc": "1921-12-26T04:05:08Z", "ms": -1515268491887.7483 }, "end": { "local": "1921-12-27T12:13:31+08:00", "utc": "1921-12-27T04:13:31Z", "ms": -1515181589358.5486 } }, "kaala": "pradosha", "days": [ { "local_date": "1921-12-26", "window": { "start": { "local": "1921-12-26T17:18:18+08:00", "utc": "1921-12-26T09:18:18Z", "ms": -1515249702486.4048 }, "end": { "local": "1921-12-26T19:06:19+08:00", "utc": "1921-12-26T11:06:19Z", "ms": -1515243221165.8418 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1921-12-27", "window": { "start": { "local": "1921-12-27T17:18:52+08:00", "utc": "1921-12-27T09:18:52Z", "ms": -1515163267712.1394 }, "end": { "local": "1921-12-27T19:06:52+08:00", "utc": "1921-12-27T11:06:52Z", "ms": -1515156787808.4346 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:05 on Mon 26 Dec to 12:14 on Tue 27 Dec.", "fact": "1921-12-26T04:05:08Z → 1921-12-27T04:13:31Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:18–19:06 on the 26th, 17:19–19:07 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 108 of 108 minutes on the 26th and 0 of 108 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 18322 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 1921: Monday 26 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": "1921-12-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 1921 falls on Monday 26 December. Trayodaśī runs from 12:05 on Mon 26 Dec to 12:14 on Tue 27 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/1921/pradosha-vrata?on=1921-12-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/1921/shivaratri?on=1921-12-27", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 1921, "local_date": "1921-12-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39366, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1921-12-27T12:13:31+08:00", "utc": "1921-12-27T04:13:31Z", "ms": -1515181589358.5486 }, "end": { "local": "1921-12-28T12:44:15+08:00", "utc": "1921-12-28T04:44:15Z", "ms": -1515093345112.1592 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1921-12-27T12:13:31+08:00", "utc": "1921-12-27T04:13:31Z", "ms": -1515181589358.5486 }, "end": { "local": "1921-12-28T12:44:15+08:00", "utc": "1921-12-28T04:44:15Z", "ms": -1515093345112.1592 } }, "kaala": "nishita", "days": [ { "local_date": "1921-12-27", "window": { "start": { "local": "1921-12-27T23:39:52+08:00", "utc": "1921-12-27T15:39:52Z", "ms": -1515140408073.246 }, "end": { "local": "1921-12-28T00:27:52+08:00", "utc": "1921-12-27T16:27:52Z", "ms": -1515137528073.246 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1921-12-28", "window": { "start": { "local": "1921-12-28T23:40:21+08:00", "utc": "1921-12-28T15:40:21Z", "ms": -1515053978754.0315 }, "end": { "local": "1921-12-29T00:28:21+08:00", "utc": "1921-12-28T16:28:21Z", "ms": -1515051098754.0315 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:14 on Tue 27 Dec to 12:44 on Wed 28 Dec.", "fact": "1921-12-27T04:13:31Z → 1921-12-28T04:44:15Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:40–00:28 on the 27th, 23:40–00:28 on the 28th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 39366 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 1921: Tuesday 27 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1921-12-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1921-12-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 1921 falls on Tuesday 27 December. Caturdaśī runs from 12:14 on Tue 27 Dec to 12:44 on Wed 28 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/1921/shivaratri?on=1921-12-27", "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" } }