{ "id": "/fuzhou/festivals/2038", "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": 2038, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/fuzhou/festivals/2038/ekadashi?on=2038-01-01", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7308, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-01-01T04:48:23+08:00", "utc": "2037-12-31T20:48:23Z", "ms": 2145905303227.7954 }, "end": { "local": "2038-01-02T02:50:38+08:00", "utc": "2038-01-01T18:50:38Z", "ms": 2145984638172.1147 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-01T04:48:23+08:00", "utc": "2037-12-31T20:48:23Z", "ms": 2145905303227.7954 }, "end": { "local": "2038-01-02T02:50:38+08:00", "utc": "2038-01-01T18:50:38Z", "ms": 2145984638172.1147 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-01-01", "window": { "start": { "local": "2038-01-01T06:50:12+08:00", "utc": "2037-12-31T22:50:12Z", "ms": 2145912611558.169 }, "end": { "local": "2038-01-01T06:50:12+08:00", "utc": "2037-12-31T22:50:12Z", "ms": 2145912611558.169 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-01-02", "window": { "start": { "local": "2038-01-02T06:50:28+08:00", "utc": "2038-01-01T22:50:28Z", "ms": 2145999027993.2988 }, "end": { "local": "2038-01-02T06:50:28+08:00", "utc": "2038-01-01T22:50:28Z", "ms": 2145999027993.2988 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:48 on Fri 1 Jan to 02:51 on Sat 2 Jan.", "fact": "2037-12-31T20:48:23Z → 2038-01-01T18:50:38Z" }, { "step": "kaala", "text": "Sunrise is at 06:50 on the 1st and 06:50 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7308 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Fuzhou, 2038: Friday 1 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Saphalā Ekādaśī 2038 falls on Friday 1 January. Ekādaśī runs from 04:48 on Fri 1 Jan to 02:51 on Sat 2 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-01-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-01-03", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15745, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-01-03T01:04:09+08:00", "utc": "2038-01-02T17:04:09Z", "ms": 2146064648847.6816 }, "end": { "local": "2038-01-03T23:33:43+08:00", "utc": "2038-01-03T15:33:43Z", "ms": 2146145622834.4631 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-03T01:04:09+08:00", "utc": "2038-01-02T17:04:09Z", "ms": 2146064648847.6816 }, "end": { "local": "2038-01-03T23:33:43+08:00", "utc": "2038-01-03T15:33:43Z", "ms": 2146145622834.4631 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-01-02", "window": { "start": { "local": "2038-01-02T17:22:58+08:00", "utc": "2038-01-02T09:22:58Z", "ms": 2146036978096.481 }, "end": { "local": "2038-01-02T19:10:40+08:00", "utc": "2038-01-02T11:10:40Z", "ms": 2146043440091.818 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2038-01-03", "window": { "start": { "local": "2038-01-03T17:23:39+08:00", "utc": "2038-01-03T09:23:39Z", "ms": 2146123419206.723 }, "end": { "local": "2038-01-03T19:11:18+08:00", "utc": "2038-01-03T11:11:18Z", "ms": 2146129877544.4194 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:04 on Sun 3 Jan to 23:34 on Sun 3 Jan.", "fact": "2038-01-02T17:04:09Z → 2038-01-03T15:33:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:23–19:11 on the 2nd, 17:24–19:11 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 108 minutes on the 2nd and 108 of 108 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 15745 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Sunday 3 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": "2038-01-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Sunday 3 January. Trayodaśī runs from 01:04 on Sun 3 Jan to 23:34 on Sun 3 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-01-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-01-03", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 575, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-01-03T23:33:43+08:00", "utc": "2038-01-03T15:33:43Z", "ms": 2146145622834.4631 }, "end": { "local": "2038-01-04T22:24:26+08:00", "utc": "2038-01-04T14:24:26Z", "ms": 2146227866256.7498 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-03T23:33:43+08:00", "utc": "2038-01-03T15:33:43Z", "ms": 2146145622834.4631 }, "end": { "local": "2038-01-04T22:24:26+08:00", "utc": "2038-01-04T14:24:26Z", "ms": 2146227866256.7498 } }, "kaala": "nishita", "days": [ { "local_date": "2038-01-03", "window": { "start": { "local": "2038-01-03T23:43:18+08:00", "utc": "2038-01-03T15:43:18Z", "ms": 2146146197973.085 }, "end": { "local": "2038-01-04T00:31:18+08:00", "utc": "2038-01-03T16:31:18Z", "ms": 2146149077973.085 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-01-04", "window": { "start": { "local": "2038-01-04T23:43:45+08:00", "utc": "2038-01-04T15:43:45Z", "ms": 2146232624987.632 }, "end": { "local": "2038-01-05T00:31:45+08:00", "utc": "2038-01-04T16:31:45Z", "ms": 2146235504987.632 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:34 on Sun 3 Jan to 22:24 on Mon 4 Jan.", "fact": "2038-01-03T15:33:43Z → 2038-01-04T14:24:26Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:43–00:31 on the 3rd, 23:44–00:32 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 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 575 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Sunday 3 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": "2038-01-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Sunday 3 January. Caturdaśī runs from 23:34 on Sun 3 Jan to 22:24 on Mon 4 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-01-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-01-09", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36942, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-01-08T22:49:07+08:00", "utc": "2038-01-08T14:49:07Z", "ms": 2146574946916.3413 }, "end": { "local": "2038-01-10T00:21:23+08:00", "utc": "2038-01-09T16:21:23Z", "ms": 2146666882992.2097 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-08T22:49:07+08:00", "utc": "2038-01-08T14:49:07Z", "ms": 2146574946916.3413 }, "end": { "local": "2038-01-10T00:21:23+08:00", "utc": "2038-01-09T16:21:23Z", "ms": 2146666882992.2097 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-01-08", "window": { "start": { "local": "2038-01-08T11:45:25+08:00", "utc": "2038-01-08T03:45:25Z", "ms": 2146535125379.6606 }, "end": { "local": "2038-01-08T12:33:25+08:00", "utc": "2038-01-08T04:33:25Z", "ms": 2146538005379.6606 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-01-09", "window": { "start": { "local": "2038-01-09T11:45:51+08:00", "utc": "2038-01-09T03:45:51Z", "ms": 2146621550761.6223 }, "end": { "local": "2038-01-09T12:33:51+08:00", "utc": "2038-01-09T04:33:51Z", "ms": 2146624430761.6223 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:49 on Fri 8 Jan to 00:21 on Sun 10 Jan.", "fact": "2038-01-08T14:49:07Z → 2038-01-09T16:21:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 8th, 11:46–12:34 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 0 of 48 minutes on the 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36942 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Saturday 9 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": "2038-01-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Saturday 9 January. Caturthī runs from 22:49 on Fri 8 Jan to 00:21 on Sun 10 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-01-09", "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/2038/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6816, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-02-13T08:25:21+08:00", "utc": "2038-02-13T00:25:21Z", "ms": 2149633520693.6387 } }, "span": { "of": "transit", "start": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 } }, "kaala": "sunset-day", "days": [ { "local_date": "2038-01-14", "window": { "start": { "local": "2038-01-13T17:30:59+08:00", "utc": "2038-01-13T09:30:59Z", "ms": 2146987858783.518 }, "end": { "local": "2038-01-14T17:31:45+08:00", "utc": "2038-01-14T09:31:45Z", "ms": 2147074304637.8977 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "2038-01-15", "window": { "start": { "local": "2038-01-14T17:31:45+08:00", "utc": "2038-01-14T09:31:45Z", "ms": 2147074304637.8977 }, "end": { "local": "2038-01-15T17:32:31+08:00", "utc": "2038-01-15T09:32:31Z", "ms": 2147160750677.6528 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2038-01-15", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 19:25 on Thu 14 Jan.", "fact": "2038-01-14T11:25:21Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:32, and the day of the 15th ends at 17:33.", "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 14th and the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 6816 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Friday 15 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Fuzhou, 2038: Thursday 14 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": "2038-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2038-01-13", "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": "2038-01-13", "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, Bhogi 2038 falls on Thursday 14 January. It is kept the day before Pongal, which falls on Friday 15 January. The Sun enters Makara at 19:25 on Thu 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th. Counted from midnight, or counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16479, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-02-13T08:25:21+08:00", "utc": "2038-02-13T00:25:21Z", "ms": 2149633520693.6387 } }, "span": { "of": "transit", "start": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 } }, "kaala": "civil-day", "days": [ { "local_date": "2038-01-14", "window": { "start": { "local": "2038-01-14T00:00:00+08:00", "utc": "2038-01-13T16:00:00Z", "ms": 2147011200000 }, "end": { "local": "2038-01-15T00:00:00+08:00", "utc": "2038-01-14T16:00:00Z", "ms": 2147097600000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "2038-01-15", "window": { "start": { "local": "2038-01-15T00:00:00+08:00", "utc": "2038-01-14T16:00:00Z", "ms": 2147097600000 }, "end": { "local": "2038-01-16T00:00:00+08:00", "utc": "2038-01-15T16:00:00Z", "ms": 2147184000000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 19:25 on Thu 14 Jan.", "fact": "2038-01-14T11:25:21Z · 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 14th, not the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 16479 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Fuzhou, 2038: Thursday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "makara-sankranti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "rashi": "Makara", "day_from": "midnight" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2038-01-14", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "2038-01-15", "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 2038 falls on Thursday 14 January. The Sun enters Makara at 19:25 on Thu 14 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 15 January.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6816, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-02-13T08:25:21+08:00", "utc": "2038-02-13T00:25:21Z", "ms": 2149633520693.6387 } }, "span": { "of": "transit", "start": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 } }, "kaala": "sunset-day", "days": [ { "local_date": "2038-01-14", "window": { "start": { "local": "2038-01-13T17:30:59+08:00", "utc": "2038-01-13T09:30:59Z", "ms": 2146987858783.518 }, "end": { "local": "2038-01-14T17:31:45+08:00", "utc": "2038-01-14T09:31:45Z", "ms": 2147074304637.8977 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "2038-01-15", "window": { "start": { "local": "2038-01-14T17:31:45+08:00", "utc": "2038-01-14T09:31:45Z", "ms": 2147074304637.8977 }, "end": { "local": "2038-01-15T17:32:31+08:00", "utc": "2038-01-15T09:32:31Z", "ms": 2147160750677.6528 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 19:25 on Thu 14 Jan.", "fact": "2038-01-14T11:25:21Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:32, and the day of the 15th ends at 17:33.", "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 14th and the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 6816 s" }, { "step": "ruling", "text": "Pongal, Fuzhou, 2038: Friday 15 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": "2038-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2038-01-14", "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": "2038-01-14", "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, Pongal 2038 falls on Friday 15 January. The Sun enters Makara at 19:25 on Thu 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th. Counted from midnight, or counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6816, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-02-13T08:25:21+08:00", "utc": "2038-02-13T00:25:21Z", "ms": 2149633520693.6387 } }, "span": { "of": "transit", "start": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 }, "end": { "local": "2038-01-14T19:25:21+08:00", "utc": "2038-01-14T11:25:21Z", "ms": 2147081120570.2236 } }, "kaala": "sunset-day", "days": [ { "local_date": "2038-01-14", "window": { "start": { "local": "2038-01-13T17:30:59+08:00", "utc": "2038-01-13T09:30:59Z", "ms": 2146987858783.518 }, "end": { "local": "2038-01-14T17:31:45+08:00", "utc": "2038-01-14T09:31:45Z", "ms": 2147074304637.8977 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "2038-01-15", "window": { "start": { "local": "2038-01-14T17:31:45+08:00", "utc": "2038-01-14T09:31:45Z", "ms": 2147074304637.8977 }, "end": { "local": "2038-01-15T17:32:31+08:00", "utc": "2038-01-15T09:32:31Z", "ms": 2147160750677.6528 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2038-01-15", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 19:25 on Thu 14 Jan.", "fact": "2038-01-14T11:25:21Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 14th ends at 17:32, and the day of the 15th ends at 17:33.", "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 14th and the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 6816 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Friday 15 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Fuzhou, 2038: Saturday 16 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": "2038-01-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-16", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2038-01-15", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2038-01-15", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Fuzhou, Mattu Pongal 2038 falls on Saturday 16 January. It is kept the day after Pongal, which falls on Friday 15 January. The Sun enters Makara at 19:25 on Thu 14 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th. Counted from midnight, or counted from sunrise, as in Orissa, it is 15 January.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-01-17", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24290, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-01-16T13:36:36+08:00", "utc": "2038-01-16T05:36:36Z", "ms": 2147232996330.6426 }, "end": { "local": "2038-01-17T14:38:54+08:00", "utc": "2038-01-17T06:38:54Z", "ms": 2147323134298.7515 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-16T13:36:36+08:00", "utc": "2038-01-16T05:36:36Z", "ms": 2147232996330.6426 }, "end": { "local": "2038-01-17T14:38:54+08:00", "utc": "2038-01-17T06:38:54Z", "ms": 2147323134298.7515 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-01-16", "window": { "start": { "local": "2038-01-16T06:51:46+08:00", "utc": "2038-01-15T22:51:46Z", "ms": 2147208706029.016 }, "end": { "local": "2038-01-16T06:51:46+08:00", "utc": "2038-01-15T22:51:46Z", "ms": 2147208706029.016 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-01-17", "window": { "start": { "local": "2038-01-17T06:51:40+08:00", "utc": "2038-01-16T22:51:40Z", "ms": 2147295100269.333 }, "end": { "local": "2038-01-17T06:51:40+08:00", "utc": "2038-01-16T22:51:40Z", "ms": 2147295100269.333 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:37 on Sat 16 Jan to 14:39 on Sun 17 Jan.", "fact": "2038-01-16T05:36:36Z → 2038-01-17T06:38:54Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 16th and 06:52 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 16th and is on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 24290 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Fuzhou, 2038: Sunday 17 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Putradā Ekādaśī 2038 falls on Sunday 17 January. Ekādaśī runs from 13:37 on Sat 16 Jan to 14:39 on Sun 17 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-01-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-01-18", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9341, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-01-18T14:59:09+08:00", "utc": "2038-01-18T06:59:09Z", "ms": 2147410748561.5283 }, "end": { "local": "2038-01-19T14:37:03+08:00", "utc": "2038-01-19T06:37:03Z", "ms": 2147495823182.4377 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-01-18T14:59:09+08:00", "utc": "2038-01-18T06:59:09Z", "ms": 2147410748561.5283 }, "end": { "local": "2038-01-19T14:37:03+08:00", "utc": "2038-01-19T06:37:03Z", "ms": 2147495823182.4377 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-01-18", "window": { "start": { "local": "2038-01-18T17:34:50+08:00", "utc": "2038-01-18T09:34:50Z", "ms": 2147420089556.2456 }, "end": { "local": "2038-01-18T19:21:02+08:00", "utc": "2038-01-18T11:21:02Z", "ms": 2147426462172.4795 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "2038-01-19", "window": { "start": { "local": "2038-01-19T17:35:36+08:00", "utc": "2038-01-19T09:35:36Z", "ms": 2147506535992.2734 }, "end": { "local": "2038-01-19T19:21:41+08:00", "utc": "2038-01-19T11:21:41Z", "ms": 2147512901041.3547 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:59 on Mon 18 Jan to 14:37 on Tue 19 Jan.", "fact": "2038-01-18T06:59:09Z → 2038-01-19T06:37:03Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:35–19:21 on the 18th, 17:36–19:22 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 106 of 106 minutes on the 18th and 0 of 106 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 9341 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Monday 18 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Monday 18 January. Trayodaśī runs from 14:59 on Mon 18 Jan to 14:37 on Tue 19 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-01-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-01-24", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19125, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-01-24T04:59:48+08:00", "utc": "2038-01-23T20:59:48Z", "ms": 2147893188304.5415 }, "end": { "local": "2038-01-25T02:20:41+08:00", "utc": "2038-01-24T18:20:41Z", "ms": 2147970041086.3801 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-01-24T04:59:48+08:00", "utc": "2038-01-23T20:59:48Z", "ms": 2147893188304.5415 }, "end": { "local": "2038-01-25T02:20:41+08:00", "utc": "2038-01-24T18:20:41Z", "ms": 2147970041086.3801 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-01-23", "window": { "start": { "local": "2038-01-23T19:57:43+08:00", "utc": "2038-01-23T11:57:43Z", "ms": 2147860662801.4714 }, "end": { "local": "2038-01-23T19:57:43+08:00", "utc": "2038-01-23T11:57:43Z", "ms": 2147860662801.4714 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-01-24", "window": { "start": { "local": "2038-01-24T21:01:56+08:00", "utc": "2038-01-24T13:01:56Z", "ms": 2147950916135.0947 }, "end": { "local": "2038-01-24T21:01:56+08:00", "utc": "2038-01-24T13:01:56Z", "ms": 2147950916135.0947 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:00 on Sun 24 Jan to 02:21 on Mon 25 Jan.", "fact": "2038-01-23T20:59:48Z → 2038-01-24T18:20:41Z" }, { "step": "kaala", "text": "Moonrise is at 19:58 on the 23rd and 21:02 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 19125 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Sunday 24 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Sunday 24 January. Caturthī runs from 05:00 on Sun 24 Jan to 02:21 on Mon 25 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-01-24", "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/2038/ekadashi?on=2038-01-31", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-01-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23537, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-01-30T14:12:18+08:00", "utc": "2038-01-30T06:12:18Z", "ms": 2148444738382.068 }, "end": { "local": "2038-01-31T13:20:01+08:00", "utc": "2038-01-31T05:20:01Z", "ms": 2148528000878.6692 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-01-30T14:12:18+08:00", "utc": "2038-01-30T06:12:18Z", "ms": 2148444738382.068 }, "end": { "local": "2038-01-31T13:20:01+08:00", "utc": "2038-01-31T05:20:01Z", "ms": 2148528000878.6692 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-01-30", "window": { "start": { "local": "2038-01-30T06:48:10+08:00", "utc": "2038-01-29T22:48:10Z", "ms": 2148418090250.6902 }, "end": { "local": "2038-01-30T06:48:10+08:00", "utc": "2038-01-29T22:48:10Z", "ms": 2148418090250.6902 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-01-31", "window": { "start": { "local": "2038-01-31T06:47:44+08:00", "utc": "2038-01-30T22:47:44Z", "ms": 2148504464160.444 }, "end": { "local": "2038-01-31T06:47:44+08:00", "utc": "2038-01-30T22:47:44Z", "ms": 2148504464160.444 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:12 on Sat 30 Jan to 13:20 on Sun 31 Jan.", "fact": "2038-01-30T06:12:18Z → 2038-01-31T05:20:01Z" }, { "step": "kaala", "text": "Sunrise is at 06:48 on the 30th and 06:48 on the 31st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 30th and is on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23537 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Fuzhou, 2038: Sunday 31 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": "2038-01-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-01-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Ṣaṭtilā Ekādaśī 2038 falls on Sunday 31 January. Ekādaśī runs from 14:12 on Sat 30 Jan to 13:20 on Sun 31 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-01-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-02-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17660, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-02-01T12:51:13+08:00", "utc": "2038-02-01T04:51:13Z", "ms": 2148612672736.3904 }, "end": { "local": "2038-02-02T12:46:30+08:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-01T12:51:13+08:00", "utc": "2038-02-01T04:51:13Z", "ms": 2148612672736.3904 }, "end": { "local": "2038-02-02T12:46:30+08:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-02-01", "window": { "start": { "local": "2038-02-01T17:45:33+08:00", "utc": "2038-02-01T09:45:33Z", "ms": 2148630332650.6736 }, "end": { "local": "2038-02-01T19:29:43+08:00", "utc": "2038-02-01T11:29:43Z", "ms": 2148636582691.263 } }, "covered_min": 104, "window_min": 104, "qualifies": true }, { "local_date": "2038-02-02", "window": { "start": { "local": "2038-02-02T17:46:17+08:00", "utc": "2038-02-02T09:46:17Z", "ms": 2148716777199.4717 }, "end": { "local": "2038-02-02T19:30:17+08:00", "utc": "2038-02-02T11:30:17Z", "ms": 2148723017288.8818 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:51 on Mon 1 Feb to 12:46 on Tue 2 Feb.", "fact": "2038-02-01T04:51:13Z → 2038-02-02T04:46:30Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:46–19:30 on the 1st, 17:46–19:30 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 104 of 104 minutes on the 1st and 0 of 104 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 17660 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Monday 1 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Monday 1 February. Trayodaśī runs from 12:51 on Mon 1 Feb to 12:46 on Tue 2 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-02-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-02-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38749, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-02-02T12:46:30+08:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 }, "end": { "local": "2038-02-03T13:06:35+08:00", "utc": "2038-02-03T05:06:35Z", "ms": 2148786394870.0818 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-02T12:46:30+08:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 }, "end": { "local": "2038-02-03T13:06:35+08:00", "utc": "2038-02-03T05:06:35Z", "ms": 2148786394870.0818 } }, "kaala": "nishita", "days": [ { "local_date": "2038-02-02", "window": { "start": { "local": "2038-02-02T23:52:18+08:00", "utc": "2038-02-02T15:52:18Z", "ms": 2148738737534.7598 }, "end": { "local": "2038-02-03T00:40:18+08:00", "utc": "2038-02-02T16:40:18Z", "ms": 2148741617534.7598 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-02-03", "window": { "start": { "local": "2038-02-03T23:52:24+08:00", "utc": "2038-02-03T15:52:24Z", "ms": 2148825143963.8682 }, "end": { "local": "2038-02-04T00:40:24+08:00", "utc": "2038-02-03T16:40:24Z", "ms": 2148828023963.8682 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:46 on Tue 2 Feb to 13:07 on Wed 3 Feb.", "fact": "2038-02-02T04:46:30Z → 2038-02-03T05:06:35Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:52–00:40 on the 2nd, 23:52–00:40 on the 3rd.", "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 2nd and 0 of 48 on the 3rd.", "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 38749 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Tuesday 2 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": "2038-02-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Tuesday 2 February. Caturdaśī runs from 12:46 on Tue 2 Feb to 13:07 on Wed 3 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-02-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21582, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-02-02T12:46:30+08:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 }, "end": { "local": "2038-02-03T13:06:35+08:00", "utc": "2038-02-03T05:06:35Z", "ms": 2148786394870.0818 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-02T12:46:30+08:00", "utc": "2038-02-02T04:46:30Z", "ms": 2148698789840.1482 }, "end": { "local": "2038-02-03T13:06:35+08:00", "utc": "2038-02-03T05:06:35Z", "ms": 2148786394870.0818 } }, "kaala": "arunodaya", "days": [ { "local_date": "2038-02-02", "window": { "start": { "local": "2038-02-02T05:02:38+08:00", "utc": "2038-02-01T21:02:38Z", "ms": 2148670957914.5046 }, "end": { "local": "2038-02-02T06:46:48+08:00", "utc": "2038-02-01T22:46:48Z", "ms": 2148677207955.094 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "2038-02-03", "window": { "start": { "local": "2038-02-03T05:02:18+08:00", "utc": "2038-02-02T21:02:18Z", "ms": 2148757337780.638 }, "end": { "local": "2038-02-03T06:46:18+08:00", "utc": "2038-02-02T22:46:18Z", "ms": 2148763577870.048 } }, "covered_min": 104, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:46 on Tue 2 Feb to 13:07 on Wed 3 Feb.", "fact": "2038-02-02T04:46:30Z → 2038-02-03T05:06:35Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:03–06:47 on the 2nd, 05:02–06:46 on the 3rd.", "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 104 minutes on the 2nd and 104 of 104 on the 3rd.", "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 21582 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Fuzhou, 2038: Wednesday 3 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Yama Tarpaṇa 2038 falls on Wednesday 3 February. Caturdaśī runs from 12:46 on Tue 2 Feb to 13:07 on Wed 3 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21668, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-02-07T18:42:08+08:00", "utc": "2038-02-07T10:42:08Z", "ms": 2149152127977.0762 }, "end": { "local": "2038-02-08T21:02:04+08:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-07T18:42:08+08:00", "utc": "2038-02-07T10:42:08Z", "ms": 2149152127977.0762 }, "end": { "local": "2038-02-08T21:02:04+08:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-02-07", "window": { "start": { "local": "2038-02-07T11:53:00+08:00", "utc": "2038-02-07T03:53:00Z", "ms": 2149127579843.1626 }, "end": { "local": "2038-02-07T12:41:00+08:00", "utc": "2038-02-07T04:41:00Z", "ms": 2149130459843.1626 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-02-08", "window": { "start": { "local": "2038-02-08T11:53:03+08:00", "utc": "2038-02-08T03:53:03Z", "ms": 2149213982861.1338 }, "end": { "local": "2038-02-08T12:41:03+08:00", "utc": "2038-02-08T04:41:03Z", "ms": 2149216862861.1338 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:42 on Sun 7 Feb to 21:02 on Mon 8 Feb.", "fact": "2038-02-07T10:42:08Z → 2038-02-08T13:02:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 7th, 11:53–12:41 on the 8th.", "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 7th and 48 of 48 on the 8th.", "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 21668 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Fuzhou, 2038: Monday 8 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": "2038-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2038 falls on Monday 8 February. Caturthī runs from 18:42 on Sun 7 Feb to 21:02 on Mon 8 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-08", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 3055, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-02-07T18:42:08+08:00", "utc": "2038-02-07T10:42:08Z", "ms": 2149152127977.0762 }, "end": { "local": "2038-02-08T21:02:04+08:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-07T18:42:08+08:00", "utc": "2038-02-07T10:42:08Z", "ms": 2149152127977.0762 }, "end": { "local": "2038-02-08T21:02:04+08:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-02-07", "window": { "start": { "local": "2038-02-07T17:49:55+08:00", "utc": "2038-02-07T09:49:55Z", "ms": 2149148994995.5505 }, "end": { "local": "2038-02-07T19:33:03+08:00", "utc": "2038-02-07T11:33:03Z", "ms": 2149155183432.8604 } }, "covered_min": 51, "window_min": 103, "qualifies": true }, { "local_date": "2038-02-08", "window": { "start": { "local": "2038-02-08T17:50:37+08:00", "utc": "2038-02-08T09:50:37Z", "ms": 2149235437446.8936 }, "end": { "local": "2038-02-08T19:33:35+08:00", "utc": "2038-02-08T11:33:35Z", "ms": 2149241615207.4363 } }, "covered_min": 103, "window_min": 103, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:42 on Sun 7 Feb to 21:02 on Mon 8 Feb.", "fact": "2038-02-07T10:42:08Z → 2038-02-08T13:02:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:50–19:33 on the 7th, 17:51–19:34 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 51 of 103 minutes on the 7th and 103 of 103 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 3055 s" }, { "step": "ruling", "text": "Tila Caturthī, Fuzhou, 2038: Monday 8 February.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-08", "confidence": "boundary" } ], "quote": "In Fuzhou, Tila Caturthī 2038 falls on Monday 8 February. Caturthī runs from 18:42 on Sun 7 Feb to 21:02 on Mon 8 Feb and covers all of pradoṣa that evening. It also reaches the previous evening for 51 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/2038/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/2038/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30061, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-02-08T21:02:04+08:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "end": { "local": "2038-02-09T23:33:33+08:00", "utc": "2038-02-09T15:33:33Z", "ms": 2149342413469.078 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-08T21:02:04+08:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "end": { "local": "2038-02-09T23:33:33+08:00", "utc": "2038-02-09T15:33:33Z", "ms": 2149342413469.078 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-02-08", "window": { "start": { "local": "2038-02-08T11:53:03+08:00", "utc": "2038-02-08T03:53:03Z", "ms": 2149213982861.1338 }, "end": { "local": "2038-02-08T12:41:03+08:00", "utc": "2038-02-08T04:41:03Z", "ms": 2149216862861.1338 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-02-09", "window": { "start": { "local": "2038-02-09T11:53:05+08:00", "utc": "2038-02-09T03:53:05Z", "ms": 2149300385073.9907 }, "end": { "local": "2038-02-09T12:41:05+08:00", "utc": "2038-02-09T04:41:05Z", "ms": 2149303265073.9907 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 21:02 on Mon 8 Feb to 23:34 on Tue 9 Feb.", "fact": "2038-02-08T13:02:04Z → 2038-02-09T15:33:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 8th, 11:53–12:41 on the 9th.", "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 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30061 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Fuzhou, 2038: Tuesday 9 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": "2038-02-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Śrī Pañcamī 2038 falls on Tuesday 9 February. Pañcamī runs from 21:02 on Mon 8 Feb to 23:34 on Tue 9 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30061, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-02-08T21:02:04+08:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "end": { "local": "2038-02-09T23:33:33+08:00", "utc": "2038-02-09T15:33:33Z", "ms": 2149342413469.078 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-08T21:02:04+08:00", "utc": "2038-02-08T13:02:04Z", "ms": 2149246924288.4417 }, "end": { "local": "2038-02-09T23:33:33+08:00", "utc": "2038-02-09T15:33:33Z", "ms": 2149342413469.078 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-02-08", "window": { "start": { "local": "2038-02-08T11:53:03+08:00", "utc": "2038-02-08T03:53:03Z", "ms": 2149213982861.1338 }, "end": { "local": "2038-02-08T12:41:03+08:00", "utc": "2038-02-08T04:41:03Z", "ms": 2149216862861.1338 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-02-09", "window": { "start": { "local": "2038-02-09T11:53:05+08:00", "utc": "2038-02-09T03:53:05Z", "ms": 2149300385073.9907 }, "end": { "local": "2038-02-09T12:41:05+08:00", "utc": "2038-02-09T04:41:05Z", "ms": 2149303265073.9907 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 21:02 on Mon 8 Feb to 23:34 on Tue 9 Feb.", "fact": "2038-02-08T13:02:04Z → 2038-02-09T15:33:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 8th, 11:53–12:41 on the 9th.", "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 8th and 48 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30061 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Fuzhou, 2038: Tuesday 9 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": "2038-02-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Vasanta Pañcamī 2038 falls on Tuesday 9 February. Pañcamī runs from 21:02 on Mon 8 Feb to 23:34 on Tue 9 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1858, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-02-11T02:06:11+08:00", "utc": "2038-02-10T18:06:11Z", "ms": 2149437970757.6792 }, "end": { "local": "2038-02-12T04:27:28+08:00", "utc": "2038-02-11T20:27:28Z", "ms": 2149532847635.2742 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-11T02:06:11+08:00", "utc": "2038-02-10T18:06:11Z", "ms": 2149437970757.6792 }, "end": { "local": "2038-02-12T04:27:28+08:00", "utc": "2038-02-11T20:27:28Z", "ms": 2149532847635.2742 } }, "kaala": "arunodaya", "days": [ { "local_date": "2038-02-11", "window": { "start": { "local": "2038-02-11T04:58:56+08:00", "utc": "2038-02-10T20:58:56Z", "ms": 2149448335764.8704 }, "end": { "local": "2038-02-11T06:41:32+08:00", "utc": "2038-02-10T22:41:32Z", "ms": 2149454491861.7014 } }, "covered_min": 103, "window_min": 103, "qualifies": true }, { "local_date": "2038-02-12", "window": { "start": { "local": "2038-02-12T04:58:26+08:00", "utc": "2038-02-11T20:58:26Z", "ms": 2149534705623.955 }, "end": { "local": "2038-02-12T06:40:51+08:00", "utc": "2038-02-11T22:40:51Z", "ms": 2149540850742.5098 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 02:06 on Thu 11 Feb to 04:27 on Fri 12 Feb.", "fact": "2038-02-10T18:06:11Z → 2038-02-11T20:27:28Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:59–06:42 on the 11th, 04:58–06:41 on the 12th.", "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 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 dawn qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1858 s" }, { "step": "ruling", "text": "Ratha Saptamī, Fuzhou, 2038: Thursday 11 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": "2038-02-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Ratha Saptamī 2038 falls on Thursday 11 February. Saptamī runs from 02:06 on Thu 11 Feb to 04:27 on Fri 12 Feb and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-02-16", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5592, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-02-15T08:22:38+08:00", "utc": "2038-02-15T00:22:38Z", "ms": 2149806157908.8618 }, "end": { "local": "2038-02-16T08:11:08+08:00", "utc": "2038-02-16T00:11:08Z", "ms": 2149891867785.1868 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-15T08:22:38+08:00", "utc": "2038-02-15T00:22:38Z", "ms": 2149806157908.8618 }, "end": { "local": "2038-02-16T08:11:08+08:00", "utc": "2038-02-16T00:11:08Z", "ms": 2149891867785.1868 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-02-15", "window": { "start": { "local": "2038-02-15T06:38:41+08:00", "utc": "2038-02-14T22:38:41Z", "ms": 2149799920779.4573 }, "end": { "local": "2038-02-15T06:38:41+08:00", "utc": "2038-02-14T22:38:41Z", "ms": 2149799920779.4573 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-02-16", "window": { "start": { "local": "2038-02-16T06:37:55+08:00", "utc": "2038-02-15T22:37:55Z", "ms": 2149886275343.227 }, "end": { "local": "2038-02-16T06:37:55+08:00", "utc": "2038-02-15T22:37:55Z", "ms": 2149886275343.227 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:23 on Mon 15 Feb to 08:11 on Tue 16 Feb.", "fact": "2038-02-15T00:22:38Z → 2038-02-16T00:11:08Z" }, { "step": "kaala", "text": "Sunrise is at 06:39 on the 15th and 06:38 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 5592 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Fuzhou, 2038: Tuesday 16 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": "2038-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Jayā Ekādaśī 2038 falls on Tuesday 16 February. Ekādaśī runs from 08:23 on Mon 15 Feb to 08:11 on Tue 16 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-02-16", "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/2038/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13311, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-02-16T08:11:08+08:00", "utc": "2038-02-16T00:11:08Z", "ms": 2149891867785.1868 }, "end": { "local": "2038-02-17T07:11:03+08:00", "utc": "2038-02-16T23:11:03Z", "ms": 2149974663385.477 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-16T08:11:08+08:00", "utc": "2038-02-16T00:11:08Z", "ms": 2149891867785.1868 }, "end": { "local": "2038-02-17T07:11:03+08:00", "utc": "2038-02-16T23:11:03Z", "ms": 2149974663385.477 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-02-16", "window": { "start": { "local": "2038-02-16T11:52:59+08:00", "utc": "2038-02-16T03:52:59Z", "ms": 2149905178637.6006 }, "end": { "local": "2038-02-16T12:40:59+08:00", "utc": "2038-02-16T04:40:59Z", "ms": 2149908058637.6006 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-02-17", "window": { "start": { "local": "2038-02-17T11:52:55+08:00", "utc": "2038-02-17T03:52:55Z", "ms": 2149991574711.6904 }, "end": { "local": "2038-02-17T12:40:55+08:00", "utc": "2038-02-17T04:40:55Z", "ms": 2149994454711.6904 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 08:11 on Tue 16 Feb to 07:11 on Wed 17 Feb.", "fact": "2038-02-16T00:11:08Z → 2038-02-16T23:11:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 16th, 11:53–12:41 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 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 13311 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Fuzhou, 2038: Tuesday 16 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": "2038-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Bhīṣma Dvādaśī 2038 falls on Tuesday 16 February. Dvādaśī runs from 08:11 on Tue 16 Feb to 07:11 on Wed 17 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/pradosha-vrata?on=2038-02-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35286, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-02-17T07:11:03+08:00", "utc": "2038-02-16T23:11:03Z", "ms": 2149974663385.477 }, "end": { "local": "2038-02-18T05:26:04+08:00", "utc": "2038-02-17T21:26:04Z", "ms": 2150054763688.7798 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-17T07:11:03+08:00", "utc": "2038-02-16T23:11:03Z", "ms": 2149974663385.477 }, "end": { "local": "2038-02-18T05:26:04+08:00", "utc": "2038-02-17T21:26:04Z", "ms": 2150054763688.7798 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-02-16", "window": { "start": { "local": "2038-02-16T17:56:02+08:00", "utc": "2038-02-16T09:56:02Z", "ms": 2149926961931.974 }, "end": { "local": "2038-02-16T19:37:31+08:00", "utc": "2038-02-16T11:37:31Z", "ms": 2149933050860.3916 } }, "covered_min": 0, "window_min": 101, "qualifies": false }, { "local_date": "2038-02-17", "window": { "start": { "local": "2038-02-17T17:56:41+08:00", "utc": "2038-02-17T09:56:41Z", "ms": 2150013400528.2754 }, "end": { "local": "2038-02-17T19:37:58+08:00", "utc": "2038-02-17T11:37:58Z", "ms": 2150019477986.3691 } }, "covered_min": 101, "window_min": 101, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:11 on Wed 17 Feb to 05:26 on Thu 18 Feb.", "fact": "2038-02-16T23:11:03Z → 2038-02-17T21:26:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:56–19:38 on the 16th, 17:57–19:38 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 101 minutes on the 16th and 101 of 101 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 35286 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Wednesday 17 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-02-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Wednesday 17 February. Trayodaśī runs from 07:11 on Wed 17 Feb to 05:26 on Thu 18 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-02-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31804, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-02-19T03:02:41+08:00", "utc": "2038-02-18T19:02:41Z", "ms": 2150132560982.72 }, "end": { "local": "2038-02-20T00:09:27+08:00", "utc": "2038-02-19T16:09:27Z", "ms": 2150208567207.3682 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2038-02-19T03:02:41+08:00", "utc": "2038-02-18T19:02:41Z", "ms": 2150132560982.72 }, "end": { "local": "2038-02-20T00:09:27+08:00", "utc": "2038-02-19T16:09:27Z", "ms": 2150208567207.3682 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-02-19", "window": { "start": { "local": "2038-02-19T11:52:45+08:00", "utc": "2038-02-19T03:52:45Z", "ms": 2150164364747.4414 }, "end": { "local": "2038-02-19T12:40:45+08:00", "utc": "2038-02-19T04:40:45Z", "ms": 2150167244747.4414 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-02-20", "window": { "start": { "local": "2038-02-20T11:52:39+08:00", "utc": "2038-02-20T03:52:39Z", "ms": 2150250758745.4116 }, "end": { "local": "2038-02-20T12:40:39+08:00", "utc": "2038-02-20T04:40:39Z", "ms": 2150253638745.4116 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 03:03 on Fri 19 Feb to 00:09 on Sat 20 Feb.", "fact": "2038-02-18T19:02:41Z → 2038-02-19T16:09:27Z" }, { "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": "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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31804 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Fuzhou, 2038: Friday 19 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": "2038-02-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Māghī Pūrṇimā 2038 falls on Friday 19 February. Pūrṇimā runs from 03:03 on Fri 19 Feb to 00:09 on Sat 20 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-02-22", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24323, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-02-22T14:10:05+08:00", "utc": "2038-02-22T06:10:05Z", "ms": 2150431805020.924 }, "end": { "local": "2038-02-23T10:57:27+08:00", "utc": "2038-02-23T02:57:27Z", "ms": 2150506646523.2024 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-02-22T14:10:05+08:00", "utc": "2038-02-22T06:10:05Z", "ms": 2150431805020.924 }, "end": { "local": "2038-02-23T10:57:27+08:00", "utc": "2038-02-23T02:57:27Z", "ms": 2150506646523.2024 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-02-22", "window": { "start": { "local": "2038-02-22T20:55:28+08:00", "utc": "2038-02-22T12:55:28Z", "ms": 2150456128388.4736 }, "end": { "local": "2038-02-22T20:55:28+08:00", "utc": "2038-02-22T12:55:28Z", "ms": 2150456128388.4736 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-02-23", "window": { "start": { "local": "2038-02-23T21:59:51+08:00", "utc": "2038-02-23T13:59:51Z", "ms": 2150546390936.3325 }, "end": { "local": "2038-02-23T21:59:51+08:00", "utc": "2038-02-23T13:59:51Z", "ms": 2150546390936.3325 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:10 on Mon 22 Feb to 10:57 on Tue 23 Feb.", "fact": "2038-02-22T06:10:05Z → 2038-02-23T02:57:27Z" }, { "step": "kaala", "text": "Moonrise is at 20:55 on the 22nd and 22:00 on the 23rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24323 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Monday 22 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": "2038-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-02-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Monday 22 February. Caturthī runs from 14:10 on Mon 22 Feb to 10:57 on Tue 23 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-02-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/ekadashi?on=2038-03-01", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16774, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-03-01T01:24:59+08:00", "utc": "2038-02-28T17:24:59Z", "ms": 2150990698596.1426 }, "end": { "local": "2038-03-02T01:46:12+08:00", "utc": "2038-03-01T17:46:12Z", "ms": 2151078372244.2456 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-01T01:24:59+08:00", "utc": "2038-02-28T17:24:59Z", "ms": 2150990698596.1426 }, "end": { "local": "2038-03-02T01:46:12+08:00", "utc": "2038-03-01T17:46:12Z", "ms": 2151078372244.2456 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-03-01", "window": { "start": { "local": "2038-03-01T06:26:43+08:00", "utc": "2038-02-28T22:26:43Z", "ms": 2151008803446.3855 }, "end": { "local": "2038-03-01T06:26:43+08:00", "utc": "2038-02-28T22:26:43Z", "ms": 2151008803446.3855 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-03-02", "window": { "start": { "local": "2038-03-02T06:25:47+08:00", "utc": "2038-03-01T22:25:47Z", "ms": 2151095146534.3044 }, "end": { "local": "2038-03-02T06:25:47+08:00", "utc": "2038-03-01T22:25:47Z", "ms": 2151095146534.3044 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:25 on Mon 1 Mar to 01:46 on Tue 2 Mar.", "fact": "2038-02-28T17:24:59Z → 2038-03-01T17:46:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:27 on the 1st and 06:26 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 1st and is not on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16774 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Fuzhou, 2038: Monday 1 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Vijayā Ekādaśī 2038 falls on Monday 1 March. Ekādaśī runs from 01:25 on Mon 1 Mar to 01:46 on Tue 2 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-03-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-03-03", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24730, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-03-03T02:35:18+08:00", "utc": "2038-03-02T18:35:18Z", "ms": 2151167718346.0315 }, "end": { "local": "2038-03-04T03:48:33+08:00", "utc": "2038-03-03T19:48:33Z", "ms": 2151258512568.978 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-03T02:35:18+08:00", "utc": "2038-03-02T18:35:18Z", "ms": 2151167718346.0315 }, "end": { "local": "2038-03-04T03:48:33+08:00", "utc": "2038-03-03T19:48:33Z", "ms": 2151258512568.978 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-03-02", "window": { "start": { "local": "2038-03-02T18:04:25+08:00", "utc": "2038-03-02T10:04:25Z", "ms": 2151137065311.6892 }, "end": { "local": "2038-03-02T19:43:08+08:00", "utc": "2038-03-02T11:43:08Z", "ms": 2151142988471.4841 } }, "covered_min": 0, "window_min": 99, "qualifies": false }, { "local_date": "2038-03-03", "window": { "start": { "local": "2038-03-03T18:04:58+08:00", "utc": "2038-03-03T10:04:58Z", "ms": 2151223498483.6853 }, "end": { "local": "2038-03-03T19:43:29+08:00", "utc": "2038-03-03T11:43:29Z", "ms": 2151229409472.3782 } }, "covered_min": 99, "window_min": 99, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:35 on Wed 3 Mar to 03:49 on Thu 4 Mar.", "fact": "2038-03-02T18:35:18Z → 2038-03-03T19:48:33Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:04–19:43 on the 2nd, 18:05–19:43 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 99 minutes on the 2nd and 99 of 99 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24730 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Wednesday 3 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Wednesday 3 March. Trayodaśī runs from 02:35 on Wed 3 Mar to 03:49 on Thu 4 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-03-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11408, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-03-04T03:48:33+08:00", "utc": "2038-03-03T19:48:33Z", "ms": 2151258512568.978 }, "end": { "local": "2038-03-05T05:22:40+08:00", "utc": "2038-03-04T21:22:40Z", "ms": 2151350560220.4055 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-04T03:48:33+08:00", "utc": "2038-03-03T19:48:33Z", "ms": 2151258512568.978 }, "end": { "local": "2038-03-05T05:22:40+08:00", "utc": "2038-03-04T21:22:40Z", "ms": 2151350560220.4055 } }, "kaala": "nishita", "days": [ { "local_date": "2038-03-03", "window": { "start": { "local": "2038-03-03T23:50:25+08:00", "utc": "2038-03-03T15:50:25Z", "ms": 2151244224691.2837 }, "end": { "local": "2038-03-04T00:38:25+08:00", "utc": "2038-03-03T16:38:25Z", "ms": 2151247104691.2837 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-03-04", "window": { "start": { "local": "2038-03-04T23:50:12+08:00", "utc": "2038-03-04T15:50:12Z", "ms": 2151330611771.562 }, "end": { "local": "2038-03-05T00:38:12+08:00", "utc": "2038-03-04T16:38:12Z", "ms": 2151333491771.562 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:49 on Thu 4 Mar to 05:23 on Fri 5 Mar.", "fact": "2038-03-03T19:48:33Z → 2038-03-04T21:22:40Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:50–00:38 on the 3rd, 23:50–00:38 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. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 11408 s" }, { "step": "ruling", "text": "Mahāśivarātri, Fuzhou, 2038: Thursday 4 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahāśivarātri 2038 falls on Thursday 4 March. Caturdaśī runs from 03:49 on Thu 4 Mar to 05:23 on Fri 5 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vinayaka-chaturthi?on=2038-03-10", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5821, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-03-09T14:14:33+08:00", "utc": "2038-03-09T06:14:33Z", "ms": 2151728072941.351 }, "end": { "local": "2038-03-10T16:47:09+08:00", "utc": "2038-03-10T08:47:09Z", "ms": 2151823629079.8306 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-09T14:14:33+08:00", "utc": "2038-03-09T06:14:33Z", "ms": 2151728072941.351 }, "end": { "local": "2038-03-10T16:47:09+08:00", "utc": "2038-03-10T08:47:09Z", "ms": 2151823629079.8306 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-03-09", "window": { "start": { "local": "2038-03-09T11:49:32+08:00", "utc": "2038-03-09T03:49:32Z", "ms": 2151719371530.088 }, "end": { "local": "2038-03-09T12:37:32+08:00", "utc": "2038-03-09T04:37:32Z", "ms": 2151722251530.088 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-03-10", "window": { "start": { "local": "2038-03-10T11:49:16+08:00", "utc": "2038-03-10T03:49:16Z", "ms": 2151805756452.3398 }, "end": { "local": "2038-03-10T12:37:16+08:00", "utc": "2038-03-10T04:37:16Z", "ms": 2151808636452.3398 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 14:15 on Tue 9 Mar to 16:47 on Wed 10 Mar.", "fact": "2038-03-09T06:14:33Z → 2038-03-10T08:47:09Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 9th, 11:49–12:37 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5821 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Wednesday 10 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": "2038-03-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-10", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Wednesday 10 March. Caturthī runs from 14:15 on Tue 9 Mar to 16:47 on Wed 10 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-03-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/ekadashi?on=2038-03-17", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22909, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-03-16T23:48:44+08:00", "utc": "2038-03-16T15:48:44Z", "ms": 2152367324455.7715 }, "end": { "local": "2038-03-17T22:22:53+08:00", "utc": "2038-03-17T14:22:53Z", "ms": 2152448573455.7153 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-16T23:48:44+08:00", "utc": "2038-03-16T15:48:44Z", "ms": 2152367324455.7715 }, "end": { "local": "2038-03-17T22:22:53+08:00", "utc": "2038-03-17T14:22:53Z", "ms": 2152448573455.7153 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-03-17", "window": { "start": { "local": "2038-03-17T06:10:34+08:00", "utc": "2038-03-16T22:10:34Z", "ms": 2152390233501.297 }, "end": { "local": "2038-03-17T06:10:34+08:00", "utc": "2038-03-16T22:10:34Z", "ms": 2152390233501.297 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-03-18", "window": { "start": { "local": "2038-03-18T06:09:30+08:00", "utc": "2038-03-17T22:09:30Z", "ms": 2152476569857.2979 }, "end": { "local": "2038-03-18T06:09:30+08:00", "utc": "2038-03-17T22:09:30Z", "ms": 2152476569857.2979 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:49 on Tue 16 Mar to 22:23 on Wed 17 Mar.", "fact": "2038-03-16T15:48:44Z → 2038-03-17T14:22:53Z" }, { "step": "kaala", "text": "Sunrise is at 06:11 on the 17th and 06:09 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 17th and is not on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22909 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Fuzhou, 2038: Wednesday 17 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Āmalakī Ekādaśī 2038 falls on Wednesday 17 March. Ekādaśī runs from 23:49 on Tue 16 Mar to 22:23 on Wed 17 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-03-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-03-18", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-18", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1314, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-03-18T20:10:00+08:00", "utc": "2038-03-18T12:10:00Z", "ms": 2152527000042.5837 }, "end": { "local": "2038-03-19T17:17:05+08:00", "utc": "2038-03-19T09:17:05Z", "ms": 2152603025084.9185 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-18T20:10:00+08:00", "utc": "2038-03-18T12:10:00Z", "ms": 2152527000042.5837 }, "end": { "local": "2038-03-19T17:17:05+08:00", "utc": "2038-03-19T09:17:05Z", "ms": 2152603025084.9185 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-03-18", "window": { "start": { "local": "2038-03-18T18:12:40+08:00", "utc": "2038-03-18T10:12:40Z", "ms": 2152519959993.4412 }, "end": { "local": "2038-03-18T19:48:06+08:00", "utc": "2038-03-18T11:48:06Z", "ms": 2152525686130.8723 } }, "covered_min": 0, "window_min": 95, "qualifies": false }, { "local_date": "2038-03-19", "window": { "start": { "local": "2038-03-19T18:13:09+08:00", "utc": "2038-03-19T10:13:09Z", "ms": 2152606388825.4207 }, "end": { "local": "2038-03-19T19:48:23+08:00", "utc": "2038-03-19T11:48:23Z", "ms": 2152612102586.3462 } }, "covered_min": 0, "window_min": 95, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:10 on Thu 18 Mar to 17:17 on Fri 19 Mar.", "fact": "2038-03-18T12:10:00Z → 2038-03-19T09:17:05Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:13–19:48 on the 18th, 18:13–19:48 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 95 minutes on the 18th and 0 of 95 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither evening qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 1314 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Thursday 18 March.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-18", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Thursday 18 March. Trayodaśī runs from 20:10 on Thu 18 Mar to 17:17 on Fri 19 Mar, and reaches pradoṣa on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-03-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6898, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-03-20T13:53:24+08:00", "utc": "2038-03-20T05:53:24Z", "ms": 2152677204166.8276 }, "end": { "local": "2038-03-21T10:09:38+08:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-20T13:53:24+08:00", "utc": "2038-03-20T05:53:24Z", "ms": 2152677204166.8276 }, "end": { "local": "2038-03-21T10:09:38+08:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 } }, "kaala": "sayahna", "days": [ { "local_date": "2038-03-20", "window": { "start": { "local": "2038-03-20T15:48:22+08:00", "utc": "2038-03-20T07:48:22Z", "ms": 2152684102402.7976 }, "end": { "local": "2038-03-20T18:13:37+08:00", "utc": "2038-03-20T10:13:37Z", "ms": 2152692817495.4062 } }, "covered_min": 145, "window_min": 145, "qualifies": true }, { "local_date": "2038-03-21", "window": { "start": { "local": "2038-03-21T15:48:32+08:00", "utc": "2038-03-21T07:48:32Z", "ms": 2152770512400.8738 }, "end": { "local": "2038-03-21T18:14:06+08:00", "utc": "2038-03-21T10:14:06Z", "ms": 2152779246022.8992 } }, "covered_min": 0, "window_min": 146, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:53 on Sat 20 Mar to 10:10 on Sun 21 Mar.", "fact": "2038-03-20T05:53:24Z → 2038-03-21T02:09:38Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:48–18:14 on the 20th, 15:49–18:14 on the 21st.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 145 of 145 minutes on the 20th and 0 of 146 on the 21st.", "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 6898 s" }, { "step": "ruling", "text": "Holikā Dahana, Fuzhou, 2038: Saturday 20 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": "2038-03-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Holikā Dahana 2038 falls on Saturday 20 March. Pūrṇimā runs from 13:53 on Sat 20 Mar to 10:10 on Sun 21 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6898, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-03-20T13:53:24+08:00", "utc": "2038-03-20T05:53:24Z", "ms": 2152677204166.8276 }, "end": { "local": "2038-03-21T10:09:38+08:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2038-03-20T13:53:24+08:00", "utc": "2038-03-20T05:53:24Z", "ms": 2152677204166.8276 }, "end": { "local": "2038-03-21T10:09:38+08:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 } }, "kaala": "sayahna", "days": [ { "local_date": "2038-03-20", "window": { "start": { "local": "2038-03-20T15:48:22+08:00", "utc": "2038-03-20T07:48:22Z", "ms": 2152684102402.7976 }, "end": { "local": "2038-03-20T18:13:37+08:00", "utc": "2038-03-20T10:13:37Z", "ms": 2152692817495.4062 } }, "covered_min": 145, "window_min": 145, "qualifies": true }, { "local_date": "2038-03-21", "window": { "start": { "local": "2038-03-21T15:48:32+08:00", "utc": "2038-03-21T07:48:32Z", "ms": 2152770512400.8738 }, "end": { "local": "2038-03-21T18:14:06+08:00", "utc": "2038-03-21T10:14:06Z", "ms": 2152779246022.8992 } }, "covered_min": 0, "window_min": 146, "qualifies": false } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "2038-03-20", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:53 on Sat 20 Mar to 10:10 on Sun 21 Mar.", "fact": "2038-03-20T05:53:24Z → 2038-03-21T02:09:38Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:48–18:14 on the 20th, 15:49–18:14 on the 21st.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 145 of 145 minutes on the 20th and 0 of 146 on the 21st.", "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 6898 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Saturday 20 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Fuzhou, 2038: Sunday 21 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": "2038-03-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Holī 2038 falls on Sunday 21 March. It is kept the day after Holikā Dahana, which falls on Saturday 20 March. Pūrṇimā runs from 13:53 on Sat 20 Mar to 10:10 on Sun 21 Mar and covers all of sāyāhna on the 20th.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 718, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-03-21T10:09:38+08:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 }, "end": { "local": "2038-03-22T06:17:12+08:00", "utc": "2038-03-21T22:17:12Z", "ms": 2152822632149.7686 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-03-21T10:09:38+08:00", "utc": "2038-03-21T02:09:38Z", "ms": 2152750178172.7417 }, "end": { "local": "2038-03-22T06:17:12+08:00", "utc": "2038-03-21T22:17:12Z", "ms": 2152822632149.7686 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-03-21", "window": { "start": { "local": "2038-03-21T06:06:18+08:00", "utc": "2038-03-20T22:06:18Z", "ms": 2152735577912.7722 }, "end": { "local": "2038-03-21T06:06:18+08:00", "utc": "2038-03-20T22:06:18Z", "ms": 2152735577912.7722 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-03-22", "window": { "start": { "local": "2038-03-22T06:05:14+08:00", "utc": "2038-03-21T22:05:14Z", "ms": 2152821913696.518 }, "end": { "local": "2038-03-22T06:05:14+08:00", "utc": "2038-03-21T22:05:14Z", "ms": 2152821913696.518 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 10:10 on Sun 21 Mar to 06:17 on Mon 22 Mar.", "fact": "2038-03-21T02:09:38Z → 2038-03-21T22:17:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:06 on the 21st and 06:05 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 718 s" }, { "step": "ruling", "text": "Vasantotsava, Fuzhou, 2038: Monday 22 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": "2038-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Vasantotsava 2038 falls on Monday 22 March. Pratipadā runs from 10:10 on Sun 21 Mar to 06:17 on Mon 22 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-03-23", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-23", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 7491, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-03-23T22:52:22+08:00", "utc": "2038-03-23T14:52:22Z", "ms": 2152968741515.631 }, "end": { "local": "2038-03-24T19:41:36+08:00", "utc": "2038-03-24T11:41:36Z", "ms": 2153043696220.9656 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-03-23T22:52:22+08:00", "utc": "2038-03-23T14:52:22Z", "ms": 2152968741515.631 }, "end": { "local": "2038-03-24T19:41:36+08:00", "utc": "2038-03-24T11:41:36Z", "ms": 2153043696220.9656 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-03-23", "window": { "start": { "local": "2038-03-23T20:47:30+08:00", "utc": "2038-03-23T12:47:30Z", "ms": 2152961250189.0173 }, "end": { "local": "2038-03-23T20:47:30+08:00", "utc": "2038-03-23T12:47:30Z", "ms": 2152961250189.0173 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-03-24", "window": { "start": { "local": "2038-03-24T21:53:39+08:00", "utc": "2038-03-24T13:53:39Z", "ms": 2153051619062.8433 }, "end": { "local": "2038-03-24T21:53:39+08:00", "utc": "2038-03-24T13:53:39Z", "ms": 2153051619062.8433 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:52 on Tue 23 Mar to 19:42 on Wed 24 Mar.", "fact": "2038-03-23T14:52:22Z → 2038-03-24T11:41:36Z" }, { "step": "kaala", "text": "Moonrise is at 20:48 on the 23rd and 21:54 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 not on the 24th.", "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 7491 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Tuesday 23 March.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-23", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-23", "confidence": "boundary" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Tuesday 23 March. Caturthī runs from 22:52 on Tue 23 Mar to 19:42 on Wed 24 Mar, and is current at moonrise on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-03-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3369, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-03-27T13:55:11+08:00", "utc": "2038-03-27T05:55:11Z", "ms": 2153282111057.8328 }, "end": { "local": "2038-03-28T13:28:15+08:00", "utc": "2038-03-28T05:28:15Z", "ms": 2153366894955.0706 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-03-27T13:55:11+08:00", "utc": "2038-03-27T05:55:11Z", "ms": 2153282111057.8328 }, "end": { "local": "2038-03-28T13:28:15+08:00", "utc": "2038-03-28T05:28:15Z", "ms": 2153366894955.0706 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-03-27", "window": { "start": { "local": "2038-03-27T11:44:24+08:00", "utc": "2038-03-27T03:44:24Z", "ms": 2153274263755.8848 }, "end": { "local": "2038-03-27T12:32:24+08:00", "utc": "2038-03-27T04:32:24Z", "ms": 2153277143755.8848 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-03-28", "window": { "start": { "local": "2038-03-28T11:44:06+08:00", "utc": "2038-03-28T03:44:06Z", "ms": 2153360645696.0461 }, "end": { "local": "2038-03-28T12:32:06+08:00", "utc": "2038-03-28T04:32:06Z", "ms": 2153363525696.0461 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 13:55 on Sat 27 Mar to 13:28 on Sun 28 Mar.", "fact": "2038-03-27T05:55:11Z → 2038-03-28T05:28:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 27th, 11:44–12:32 on the 28th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 3369 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Fuzhou, 2038: Sunday 28 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": "2038-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Śītalāṣṭamī 2038 falls on Sunday 28 March. Aṣṭamī runs from 13:55 on Sat 27 Mar to 13:28 on Sun 28 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-03-31", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31318, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-03-30T14:38:38+08:00", "utc": "2038-03-30T06:38:38Z", "ms": 2153543918225.9338 }, "end": { "local": "2038-03-31T16:04:06+08:00", "utc": "2038-03-31T08:04:06Z", "ms": 2153635445791.954 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-03-30T14:38:38+08:00", "utc": "2038-03-30T06:38:38Z", "ms": 2153543918225.9338 }, "end": { "local": "2038-03-31T16:04:06+08:00", "utc": "2038-03-31T08:04:06Z", "ms": 2153635445791.954 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-03-30", "window": { "start": { "local": "2038-03-30T05:56:40+08:00", "utc": "2038-03-29T21:56:40Z", "ms": 2153512600072.6653 }, "end": { "local": "2038-03-30T05:56:40+08:00", "utc": "2038-03-29T21:56:40Z", "ms": 2153512600072.6653 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-03-31", "window": { "start": { "local": "2038-03-31T05:55:36+08:00", "utc": "2038-03-30T21:55:36Z", "ms": 2153598936299.486 }, "end": { "local": "2038-03-31T05:55:36+08:00", "utc": "2038-03-30T21:55:36Z", "ms": 2153598936299.486 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:39 on Tue 30 Mar to 16:04 on Wed 31 Mar.", "fact": "2038-03-30T06:38:38Z → 2038-03-31T08:04:06Z" }, { "step": "kaala", "text": "Sunrise is at 05:57 on the 30th and 05:56 on the 31st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 30th and is on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31318 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Fuzhou, 2038: Wednesday 31 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-03-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Pāpamocanī Ekādaśī 2038 falls on Wednesday 31 March. Ekādaśī runs from 14:39 on Tue 30 Mar to 16:04 on Wed 31 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-03-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-04-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-01", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 473, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-04-01T17:53:28+08:00", "utc": "2038-04-01T09:53:28Z", "ms": 2153728407891.2617 }, "end": { "local": "2038-04-02T19:59:58+08:00", "utc": "2038-04-02T11:59:58Z", "ms": 2153822397851.5686 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-01T17:53:28+08:00", "utc": "2038-04-01T09:53:28Z", "ms": 2153728407891.2617 }, "end": { "local": "2038-04-02T19:59:58+08:00", "utc": "2038-04-02T11:59:58Z", "ms": 2153822397851.5686 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-04-01", "window": { "start": { "local": "2038-04-01T18:19:16+08:00", "utc": "2038-04-01T10:19:16Z", "ms": 2153729955513.2234 }, "end": { "local": "2038-04-01T19:51:49+08:00", "utc": "2038-04-01T11:51:49Z", "ms": 2153735509354.3901 } }, "covered_min": 93, "window_min": 93, "qualifies": true }, { "local_date": "2038-04-02", "window": { "start": { "local": "2038-04-02T18:19:44+08:00", "utc": "2038-04-02T10:19:44Z", "ms": 2153816383607.0369 }, "end": { "local": "2038-04-02T19:52:05+08:00", "utc": "2038-04-02T11:52:05Z", "ms": 2153821925281.5962 } }, "covered_min": 92, "window_min": 92, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:53 on Thu 1 Apr to 20:00 on Fri 2 Apr.", "fact": "2038-04-01T09:53:28Z → 2038-04-02T11:59:58Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:19–19:52 on the 1st, 18:20–19:52 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 93 of 93 minutes on the 1st and 92 of 92 on the 2nd.", "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 473 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Thursday 1 April.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-01", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-01", "confidence": "boundary" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Thursday 1 April. Trayodaśī runs from 17:53 on Thu 1 Apr to 20:00 on Fri 2 Apr and covers all of pradoṣa that evening. It also reaches the next evening for 92 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/2038/pradosha-vrata?on=2038-04-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-04-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5029, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-04-02T19:59:58+08:00", "utc": "2038-04-02T11:59:58Z", "ms": 2153822397851.5686 }, "end": { "local": "2038-04-03T22:17:59+08:00", "utc": "2038-04-03T14:17:59Z", "ms": 2153917078559.9949 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-02T19:59:58+08:00", "utc": "2038-04-02T11:59:58Z", "ms": 2153822397851.5686 }, "end": { "local": "2038-04-03T22:17:59+08:00", "utc": "2038-04-03T14:17:59Z", "ms": 2153917078559.9949 } }, "kaala": "nishita", "days": [ { "local_date": "2038-04-02", "window": { "start": { "local": "2038-04-02T23:42:05+08:00", "utc": "2038-04-02T15:42:05Z", "ms": 2153835724886.6338 }, "end": { "local": "2038-04-03T00:30:05+08:00", "utc": "2038-04-02T16:30:05Z", "ms": 2153838604886.6338 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-03", "window": { "start": { "local": "2038-04-03T23:41:48+08:00", "utc": "2038-04-03T15:41:48Z", "ms": 2153922107500.9067 }, "end": { "local": "2038-04-04T00:29:48+08:00", "utc": "2038-04-03T16:29:48Z", "ms": 2153924987500.9067 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:00 on Fri 2 Apr to 22:18 on Sat 3 Apr.", "fact": "2038-04-02T11:59:58Z → 2038-04-03T14:17:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:42–00:30 on the 2nd, 23:42–00:30 on the 3rd.", "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 2nd and 0 of 48 on the 3rd.", "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 5029 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Friday 2 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": "2038-04-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Friday 2 April. Caturdaśī runs from 20:00 on Fri 2 Apr to 22:18 on Sat 3 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-04-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30608, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-04-05T00:43:02+08:00", "utc": "2038-04-04T16:43:02Z", "ms": 2154012182425.5486 }, "end": { "local": "2038-04-06T03:11:20+08:00", "utc": "2038-04-05T19:11:20Z", "ms": 2154107479722.4233 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-05T00:43:02+08:00", "utc": "2038-04-04T16:43:02Z", "ms": 2154012182425.5486 }, "end": { "local": "2038-04-06T03:11:20+08:00", "utc": "2038-04-05T19:11:20Z", "ms": 2154107479722.4233 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-05", "window": { "start": { "local": "2038-04-05T11:41:44+08:00", "utc": "2038-04-05T03:41:44Z", "ms": 2154051704389.4502 }, "end": { "local": "2038-04-05T12:29:44+08:00", "utc": "2038-04-05T04:29:44Z", "ms": 2154054584389.4502 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-06", "window": { "start": { "local": "2038-04-06T11:41:27+08:00", "utc": "2038-04-06T03:41:27Z", "ms": 2154138087370.8413 }, "end": { "local": "2038-04-06T12:29:27+08:00", "utc": "2038-04-06T04:29:27Z", "ms": 2154140967370.8413 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 00:43 on Mon 5 Apr to 03:11 on Tue 6 Apr.", "fact": "2038-04-04T16:43:02Z → 2038-04-05T19:11:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 5th, 11:41–12:29 on the 6th.", "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 5th and 0 of 48 on the 6th.", "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 30608 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Fuzhou, 2038: Monday 5 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": "2038-04-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Navarātrārambha (Caitra) (Chaitra Navratri) 2038 falls on Monday 5 April. Pratipadā runs from 00:43 on Mon 5 Apr to 03:11 on Tue 6 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13228, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-04-07T05:38:49+08:00", "utc": "2038-04-06T21:38:49Z", "ms": 2154202728821.8608 }, "end": { "local": "2038-04-08T08:00:26+08:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-07T05:38:49+08:00", "utc": "2038-04-06T21:38:49Z", "ms": 2154202728821.8608 }, "end": { "local": "2038-04-08T08:00:26+08:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-07", "window": { "start": { "local": "2038-04-07T11:41:11+08:00", "utc": "2038-04-07T03:41:11Z", "ms": 2154224470547.5762 }, "end": { "local": "2038-04-07T12:29:11+08:00", "utc": "2038-04-07T04:29:11Z", "ms": 2154227350547.5762 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-08", "window": { "start": { "local": "2038-04-08T11:40:54+08:00", "utc": "2038-04-08T03:40:54Z", "ms": 2154310853934.6833 }, "end": { "local": "2038-04-08T12:28:54+08:00", "utc": "2038-04-08T04:28:54Z", "ms": 2154313733934.6833 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:39 on Wed 7 Apr to 08:00 on Thu 8 Apr.", "fact": "2038-04-06T21:38:49Z → 2038-04-08T00:00:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 7th, 11:41–12:29 on the 8th.", "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 7th and 0 of 48 on the 8th.", "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 13228 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Fuzhou, 2038: Wednesday 7 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": "2038-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaurī Tṛtīyā (Gangaur) 2038 falls on Wednesday 7 April. Tṛtīyā runs from 05:39 on Wed 7 Apr to 08:00 on Thu 8 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13228, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-04-07T05:38:49+08:00", "utc": "2038-04-06T21:38:49Z", "ms": 2154202728821.8608 }, "end": { "local": "2038-04-08T08:00:26+08:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-07T05:38:49+08:00", "utc": "2038-04-06T21:38:49Z", "ms": 2154202728821.8608 }, "end": { "local": "2038-04-08T08:00:26+08:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-07", "window": { "start": { "local": "2038-04-07T11:41:11+08:00", "utc": "2038-04-07T03:41:11Z", "ms": 2154224470547.5762 }, "end": { "local": "2038-04-07T12:29:11+08:00", "utc": "2038-04-07T04:29:11Z", "ms": 2154227350547.5762 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-08", "window": { "start": { "local": "2038-04-08T11:40:54+08:00", "utc": "2038-04-08T03:40:54Z", "ms": 2154310853934.6833 }, "end": { "local": "2038-04-08T12:28:54+08:00", "utc": "2038-04-08T04:28:54Z", "ms": 2154313733934.6833 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:39 on Wed 7 Apr to 08:00 on Thu 8 Apr.", "fact": "2038-04-06T21:38:49Z → 2038-04-08T00:00:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 7th, 11:41–12:29 on the 8th.", "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 7th and 0 of 48 on the 8th.", "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 13228 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Fuzhou, 2038: Wednesday 7 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": "2038-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Saubhāgya Śayana Vrata 2038 falls on Wednesday 7 April. Tṛtīyā runs from 05:39 on Wed 7 Apr to 08:00 on Thu 8 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vinayaka-chaturthi?on=2038-04-08", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5463, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-04-08T08:00:26+08:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 }, "end": { "local": "2038-04-09T10:09:35+08:00", "utc": "2038-04-09T02:09:35Z", "ms": 2154391774572.5332 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-08T08:00:26+08:00", "utc": "2038-04-08T00:00:26Z", "ms": 2154297626149.866 }, "end": { "local": "2038-04-09T10:09:35+08:00", "utc": "2038-04-09T02:09:35Z", "ms": 2154391774572.5332 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-08", "window": { "start": { "local": "2038-04-08T11:40:54+08:00", "utc": "2038-04-08T03:40:54Z", "ms": 2154310853934.6833 }, "end": { "local": "2038-04-08T12:28:54+08:00", "utc": "2038-04-08T04:28:54Z", "ms": 2154313733934.6833 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-09", "window": { "start": { "local": "2038-04-09T11:40:38+08:00", "utc": "2038-04-09T03:40:38Z", "ms": 2154397237547.084 }, "end": { "local": "2038-04-09T12:28:38+08:00", "utc": "2038-04-09T04:28:38Z", "ms": 2154400117547.084 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 08:00 on Thu 8 Apr to 10:10 on Fri 9 Apr.", "fact": "2038-04-08T00:00:26Z → 2038-04-09T02:09:35Z" }, { "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": "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 5463 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Thursday 8 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": "2038-04-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Thursday 8 April. Caturthī runs from 08:00 on Thu 8 Apr to 10:10 on Fri 9 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-04-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1064, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-04-09T10:09:35+08:00", "utc": "2038-04-09T02:09:35Z", "ms": 2154391774572.5332 }, "end": { "local": "2038-04-10T11:58:06+08:00", "utc": "2038-04-10T03:58:06Z", "ms": 2154484685796.394 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-09T10:09:35+08:00", "utc": "2038-04-09T02:09:35Z", "ms": 2154391774572.5332 }, "end": { "local": "2038-04-10T11:58:06+08:00", "utc": "2038-04-10T03:58:06Z", "ms": 2154484685796.394 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-09", "window": { "start": { "local": "2038-04-09T11:40:38+08:00", "utc": "2038-04-09T03:40:38Z", "ms": 2154397237547.084 }, "end": { "local": "2038-04-09T12:28:38+08:00", "utc": "2038-04-09T04:28:38Z", "ms": 2154400117547.084 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-10", "window": { "start": { "local": "2038-04-10T11:40:21+08:00", "utc": "2038-04-10T03:40:21Z", "ms": 2154483621399.6392 }, "end": { "local": "2038-04-10T12:28:21+08:00", "utc": "2038-04-10T04:28:21Z", "ms": 2154486501399.6392 } }, "covered_min": 18, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 10:10 on Fri 9 Apr to 11:58 on Sat 10 Apr.", "fact": "2038-04-09T02:09:35Z → 2038-04-10T03:58:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 9th, 11:40–12:28 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 18 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 1064 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Fuzhou, 2038: Friday 9 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": "2038-04-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Lakṣmī Pañcamī 2038 falls on Friday 9 April. Pañcamī runs from 10:10 on Fri 9 Apr to 11:58 on Sat 10 Apr and covers all of madhyāhna that midday. It also reaches the next midday for 18 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5200, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-04-12T13:57:58+08:00", "utc": "2038-04-12T05:57:58Z", "ms": 2154664678273.1921 }, "end": { "local": "2038-04-13T13:54:15+08:00", "utc": "2038-04-13T05:54:15Z", "ms": 2154750854961.7395 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-12T13:57:58+08:00", "utc": "2038-04-12T05:57:58Z", "ms": 2154664678273.1921 }, "end": { "local": "2038-04-13T13:54:15+08:00", "utc": "2038-04-13T05:54:15Z", "ms": 2154750854961.7395 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-12", "window": { "start": { "local": "2038-04-12T11:39:50+08:00", "utc": "2038-04-12T03:39:50Z", "ms": 2154656389884.7407 }, "end": { "local": "2038-04-12T12:27:50+08:00", "utc": "2038-04-12T04:27:50Z", "ms": 2154659269884.7407 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-04-13", "window": { "start": { "local": "2038-04-13T11:39:35+08:00", "utc": "2038-04-13T03:39:35Z", "ms": 2154742774547.352 }, "end": { "local": "2038-04-13T12:27:35+08:00", "utc": "2038-04-13T04:27:35Z", "ms": 2154745654547.352 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 13:58 on Mon 12 Apr to 13:54 on Tue 13 Apr.", "fact": "2038-04-12T05:57:58Z → 2038-04-13T05:54:15Z" }, { "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": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5200 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Fuzhou, 2038: Tuesday 13 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": "2038-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Bhavānī Utpatti 2038 falls on Tuesday 13 April. Aṣṭamī runs from 13:58 on Mon 12 Apr to 13:54 on Tue 13 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28974, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "2038-04-14T13:44:07+08:00", "utc": "2038-04-14T05:44:07Z", "ms": 2154836647268.6467 }, "end": { "local": "2038-05-15T10:32:35+08:00", "utc": "2038-05-15T02:32:35Z", "ms": 2157503555328.6284 } }, "span": { "of": "transit", "start": { "local": "2038-04-14T13:44:07+08:00", "utc": "2038-04-14T05:44:07Z", "ms": 2154836647268.6467 }, "end": { "local": "2038-04-14T13:44:07+08:00", "utc": "2038-04-14T05:44:07Z", "ms": 2154836647268.6467 } }, "kaala": "day", "days": [ { "local_date": "2038-04-13", "window": { "start": { "local": "2038-04-13T05:42:13+08:00", "utc": "2038-04-12T21:42:13Z", "ms": 2154721332501.3594 }, "end": { "local": "2038-04-14T05:41:13+08:00", "utc": "2038-04-13T21:41:13Z", "ms": 2154807673452.1384 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "2038-04-14", "window": { "start": { "local": "2038-04-14T05:41:13+08:00", "utc": "2038-04-13T21:41:13Z", "ms": 2154807673452.1384 }, "end": { "local": "2038-04-15T05:40:15+08:00", "utc": "2038-04-14T21:40:15Z", "ms": 2154894014923.2986 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 13:44 on Wed 14 Apr.", "fact": "2038-04-14T05:44:07Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:42 on the 13th, and from 05:41 on the 14th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 14th, not the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 28974 s" }, { "step": "ruling", "text": "Vaiśākhī, Fuzhou, 2038: Wednesday 14 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2038-04-14", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "2038-04-14", "statement": "Past sunset, the next day (the Tamil rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } } ], "quote": "In Fuzhou, Vaiśākhī 2038 falls on Wednesday 14 April. The Sun enters Meṣa at 13:44 on Wed 14 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2101, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2038-04-13T13:54:15+08:00", "utc": "2038-04-13T05:54:15Z", "ms": 2154750854961.7395 }, "end": { "local": "2038-04-14T13:02:21+08:00", "utc": "2038-04-14T05:02:21Z", "ms": 2154834140617.3677 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-13T13:54:15+08:00", "utc": "2038-04-13T05:54:15Z", "ms": 2154750854961.7395 }, "end": { "local": "2038-04-14T13:02:21+08:00", "utc": "2038-04-14T05:02:21Z", "ms": 2154834140617.3677 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-13", "window": { "start": { "local": "2038-04-13T11:39:35+08:00", "utc": "2038-04-13T03:39:35Z", "ms": 2154742774547.352 }, "end": { "local": "2038-04-13T12:27:35+08:00", "utc": "2038-04-13T04:27:35Z", "ms": 2154745654547.352 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-04-14", "window": { "start": { "local": "2038-04-14T11:39:20+08:00", "utc": "2038-04-14T03:39:20Z", "ms": 2154829159510.5034 }, "end": { "local": "2038-04-14T12:27:20+08:00", "utc": "2038-04-14T04:27:20Z", "ms": 2154832039510.5034 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 13:54 on Tue 13 Apr to 13:02 on Wed 14 Apr.", "fact": "2038-04-13T05:54:15Z → 2038-04-14T05:02:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 13th, 11:39–12:27 on the 14th.", "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 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: unstated → only-day · margin 2101 s" }, { "step": "ruling", "text": "Rāma Navamī, Fuzhou, 2038: Wednesday 14 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": "2038-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Rāma Navamī 2038 falls on Wednesday 14 April. Navamī runs from 13:54 on Tue 13 Apr to 13:02 on Wed 14 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-04-16", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11909, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-04-15T11:22:19+08:00", "utc": "2038-04-15T03:22:19Z", "ms": 2154914539013.5962 }, "end": { "local": "2038-04-16T08:57:46+08:00", "utc": "2038-04-16T00:57:46Z", "ms": 2154992266174.1577 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-15T11:22:19+08:00", "utc": "2038-04-15T03:22:19Z", "ms": 2154914539013.5962 }, "end": { "local": "2038-04-16T08:57:46+08:00", "utc": "2038-04-16T00:57:46Z", "ms": 2154992266174.1577 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-04-15", "window": { "start": { "local": "2038-04-15T05:40:15+08:00", "utc": "2038-04-14T21:40:15Z", "ms": 2154894014923.2986 }, "end": { "local": "2038-04-15T05:40:15+08:00", "utc": "2038-04-14T21:40:15Z", "ms": 2154894014923.2986 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-04-16", "window": { "start": { "local": "2038-04-16T05:39:17+08:00", "utc": "2038-04-15T21:39:17Z", "ms": 2154980356941.146 }, "end": { "local": "2038-04-16T05:39:17+08:00", "utc": "2038-04-15T21:39:17Z", "ms": 2154980356941.146 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:22 on Thu 15 Apr to 08:58 on Fri 16 Apr.", "fact": "2038-04-15T03:22:19Z → 2038-04-16T00:57:46Z" }, { "step": "kaala", "text": "Sunrise is at 05:40 on the 15th and 05:39 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 11909 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Fuzhou, 2038: Friday 16 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": "2038-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Kāmadā Ekādaśī 2038 falls on Friday 16 April. Ekādaśī runs from 11:22 on Thu 15 Apr to 08:58 on Fri 16 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-04-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20598, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-04-17T05:55:18+08:00", "utc": "2038-04-16T21:55:18Z", "ms": 2155067718407.9248 }, "end": { "local": "2038-04-18T02:23:48+08:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-17T05:55:18+08:00", "utc": "2038-04-16T21:55:18Z", "ms": 2155067718407.9248 }, "end": { "local": "2038-04-18T02:23:48+08:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-17", "window": { "start": { "local": "2038-04-17T11:38:36+08:00", "utc": "2038-04-17T03:38:36Z", "ms": 2155088316366.8198 }, "end": { "local": "2038-04-17T12:26:36+08:00", "utc": "2038-04-17T04:26:36Z", "ms": 2155091196366.8198 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-18", "window": { "start": { "local": "2038-04-18T11:38:23+08:00", "utc": "2038-04-18T03:38:23Z", "ms": 2155174702699.7593 }, "end": { "local": "2038-04-18T12:26:23+08:00", "utc": "2038-04-18T04:26:23Z", "ms": 2155177582699.7593 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:55 on Sat 17 Apr to 02:24 on Sun 18 Apr.", "fact": "2038-04-16T21:55:18Z → 2038-04-17T18:23:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 17th, 11:38–12:26 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 20598 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Fuzhou, 2038: Saturday 17 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": "2038-04-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Anaṅga Trayodaśī 2038 falls on Saturday 17 April. Trayodaśī runs from 05:55 on Sat 17 Apr to 02:24 on Sun 18 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/pradosha-vrata?on=2038-04-17", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23251, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-04-17T05:55:18+08:00", "utc": "2038-04-16T21:55:18Z", "ms": 2155067718407.9248 }, "end": { "local": "2038-04-18T02:23:48+08:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-17T05:55:18+08:00", "utc": "2038-04-16T21:55:18Z", "ms": 2155067718407.9248 }, "end": { "local": "2038-04-18T02:23:48+08:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-04-16", "window": { "start": { "local": "2038-04-16T18:26:24+08:00", "utc": "2038-04-16T10:26:24Z", "ms": 2155026383865.037 }, "end": { "local": "2038-04-16T19:55:59+08:00", "utc": "2038-04-16T11:55:59Z", "ms": 2155031759287.3875 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "2038-04-17", "window": { "start": { "local": "2038-04-17T18:26:53+08:00", "utc": "2038-04-17T10:26:53Z", "ms": 2155112813200.9739 }, "end": { "local": "2038-04-17T19:56:17+08:00", "utc": "2038-04-17T11:56:17Z", "ms": 2155118177137.5688 } }, "covered_min": 89, "window_min": 89, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:55 on Sat 17 Apr to 02:24 on Sun 18 Apr.", "fact": "2038-04-16T21:55:18Z → 2038-04-17T18:23:48Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:26–19:56 on the 16th, 18:27–19:56 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 90 minutes on the 16th and 89 of 89 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 23251 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Saturday 17 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Saturday 17 April. Trayodaśī runs from 05:55 on Sat 17 Apr to 02:24 on Sun 18 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-04-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33275, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-04-18T02:23:48+08:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 }, "end": { "local": "2038-04-18T22:33:38+08:00", "utc": "2038-04-18T14:33:38Z", "ms": 2155214017857.3164 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-18T02:23:48+08:00", "utc": "2038-04-17T18:23:48Z", "ms": 2155141427878.0361 }, "end": { "local": "2038-04-18T22:33:38+08:00", "utc": "2038-04-18T14:33:38Z", "ms": 2155214017857.3164 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-18", "window": { "start": { "local": "2038-04-18T11:38:23+08:00", "utc": "2038-04-18T03:38:23Z", "ms": 2155174702699.7593 }, "end": { "local": "2038-04-18T12:26:23+08:00", "utc": "2038-04-18T04:26:23Z", "ms": 2155177582699.7593 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-04-19", "window": { "start": { "local": "2038-04-19T11:38:09+08:00", "utc": "2038-04-19T03:38:09Z", "ms": 2155261089420.853 }, "end": { "local": "2038-04-19T12:26:09+08:00", "utc": "2038-04-19T04:26:09Z", "ms": 2155263969420.853 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:24 on Sun 18 Apr to 22:34 on Sun 18 Apr.", "fact": "2038-04-17T18:23:48Z → 2038-04-18T14:33:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 18th, 11:38–12:26 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33275 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Fuzhou, 2038: Sunday 18 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": "2038-04-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Viṣṇudamanaka Caturdaśī 2038 falls on Sunday 18 April. Caturdaśī runs from 02:24 on Sun 18 Apr to 22:34 on Sun 18 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22194, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-04-18T22:33:38+08:00", "utc": "2038-04-18T14:33:38Z", "ms": 2155214017857.3164 }, "end": { "local": "2038-04-19T18:36:04+08:00", "utc": "2038-04-19T10:36:04Z", "ms": 2155286163707.0671 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2038-04-18T22:33:38+08:00", "utc": "2038-04-18T14:33:38Z", "ms": 2155214017857.3164 }, "end": { "local": "2038-04-19T18:36:04+08:00", "utc": "2038-04-19T10:36:04Z", "ms": 2155286163707.0671 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-04-18", "window": { "start": { "local": "2038-04-18T11:38:23+08:00", "utc": "2038-04-18T03:38:23Z", "ms": 2155174702699.7593 }, "end": { "local": "2038-04-18T12:26:23+08:00", "utc": "2038-04-18T04:26:23Z", "ms": 2155177582699.7593 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-04-19", "window": { "start": { "local": "2038-04-19T11:38:09+08:00", "utc": "2038-04-19T03:38:09Z", "ms": 2155261089420.853 }, "end": { "local": "2038-04-19T12:26:09+08:00", "utc": "2038-04-19T04:26:09Z", "ms": 2155263969420.853 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 22:34 on Sun 18 Apr to 18:36 on Mon 19 Apr.", "fact": "2038-04-18T14:33:38Z → 2038-04-19T10:36:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 18th, 11:38–12:26 on the 19th.", "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 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 22194 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Fuzhou, 2038: Monday 19 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": "2038-04-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Caitrī Pūrṇimā 2038 falls on Monday 19 April. Pūrṇimā runs from 22:34 on Sun 18 Apr to 18:36 on Mon 19 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-04-22", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27093, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-04-22T07:53:21+08:00", "utc": "2038-04-21T23:53:21Z", "ms": 2155506800761.7656 }, "end": { "local": "2038-04-23T05:17:35+08:00", "utc": "2038-04-22T21:17:35Z", "ms": 2155583855087.7107 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-04-22T07:53:21+08:00", "utc": "2038-04-21T23:53:21Z", "ms": 2155506800761.7656 }, "end": { "local": "2038-04-23T05:17:35+08:00", "utc": "2038-04-22T21:17:35Z", "ms": 2155583855087.7107 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-04-21", "window": { "start": { "local": "2038-04-21T20:39:33+08:00", "utc": "2038-04-21T12:39:33Z", "ms": 2155466372718.6597 }, "end": { "local": "2038-04-21T20:39:33+08:00", "utc": "2038-04-21T12:39:33Z", "ms": 2155466372718.6597 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-04-22", "window": { "start": { "local": "2038-04-22T21:46:02+08:00", "utc": "2038-04-22T13:46:02Z", "ms": 2155556761956.032 }, "end": { "local": "2038-04-22T21:46:02+08:00", "utc": "2038-04-22T13:46:02Z", "ms": 2155556761956.032 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:53 on Thu 22 Apr to 05:18 on Fri 23 Apr.", "fact": "2038-04-21T23:53:21Z → 2038-04-22T21:17:35Z" }, { "step": "kaala", "text": "Moonrise is at 20:40 on the 21st and 21:46 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 27093 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Thursday 22 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": "2038-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Thursday 22 April. Caturthī runs from 07:53 on Thu 22 Apr to 05:18 on Fri 23 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-04-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/ekadashi?on=2038-04-30", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 432, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-04-29T05:34:57+08:00", "utc": "2038-04-28T21:34:57Z", "ms": 2156103296883.0698 }, "end": { "local": "2038-04-30T07:43:27+08:00", "utc": "2038-04-29T23:43:27Z", "ms": 2156197406658.011 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-04-29T05:34:57+08:00", "utc": "2038-04-28T21:34:57Z", "ms": 2156103296883.0698 }, "end": { "local": "2038-04-30T07:43:27+08:00", "utc": "2038-04-29T23:43:27Z", "ms": 2156197406658.011 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-04-29", "window": { "start": { "local": "2038-04-29T05:27:45+08:00", "utc": "2038-04-28T21:27:45Z", "ms": 2156102865293.3845 }, "end": { "local": "2038-04-29T05:27:45+08:00", "utc": "2038-04-28T21:27:45Z", "ms": 2156102865293.3845 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-04-30", "window": { "start": { "local": "2038-04-30T05:26:58+08:00", "utc": "2038-04-29T21:26:58Z", "ms": 2156189217755.4072 }, "end": { "local": "2038-04-30T05:26:58+08:00", "utc": "2038-04-29T21:26:58Z", "ms": 2156189217755.4072 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:35 on Thu 29 Apr to 07:43 on Fri 30 Apr.", "fact": "2038-04-28T21:34:57Z → 2038-04-29T23:43:27Z" }, { "step": "kaala", "text": "Sunrise is at 05:28 on the 29th and 05:27 on the 30th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 432 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Fuzhou, 2038: Friday 30 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-04-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-04-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Varūthinī Ekādaśī 2038 falls on Friday 30 April. Ekādaśī runs from 05:35 on Thu 29 Apr to 07:43 on Fri 30 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-04-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-05-01", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21691, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-05-01T10:05:33+08:00", "utc": "2038-05-01T02:05:33Z", "ms": 2156292332534.0205 }, "end": { "local": "2038-05-02T12:33:02+08:00", "utc": "2038-05-02T04:33:02Z", "ms": 2156387582298.2776 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-01T10:05:33+08:00", "utc": "2038-05-01T02:05:33Z", "ms": 2156292332534.0205 }, "end": { "local": "2038-05-02T12:33:02+08:00", "utc": "2038-05-02T04:33:02Z", "ms": 2156387582298.2776 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-05-01", "window": { "start": { "local": "2038-05-01T18:34:01+08:00", "utc": "2038-05-01T10:34:01Z", "ms": 2156322841171.361 }, "end": { "local": "2038-05-01T20:00:52+08:00", "utc": "2038-05-01T12:00:52Z", "ms": 2156328052409.6135 } }, "covered_min": 87, "window_min": 87, "qualifies": true }, { "local_date": "2038-05-02", "window": { "start": { "local": "2038-05-02T18:34:33+08:00", "utc": "2038-05-02T10:34:33Z", "ms": 2156409272993.525 }, "end": { "local": "2038-05-02T20:01:14+08:00", "utc": "2038-05-02T12:01:14Z", "ms": 2156414474025.9058 } }, "covered_min": 0, "window_min": 87, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:06 on Sat 1 May to 12:33 on Sun 2 May.", "fact": "2038-05-01T02:05:33Z → 2038-05-02T04:33:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:34–20:01 on the 1st, 18:35–20:01 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 87 of 87 minutes on the 1st and 0 of 87 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 21691 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Saturday 1 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Saturday 1 May. Trayodaśī runs from 10:06 on Sat 1 May to 12:33 on Sun 2 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-05-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-05-02", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30966, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-05-02T12:33:02+08:00", "utc": "2038-05-02T04:33:02Z", "ms": 2156387582298.2776 }, "end": { "local": "2038-05-03T14:59:25+08:00", "utc": "2038-05-03T06:59:25Z", "ms": 2156482765367.7212 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-02T12:33:02+08:00", "utc": "2038-05-02T04:33:02Z", "ms": 2156387582298.2776 }, "end": { "local": "2038-05-03T14:59:25+08:00", "utc": "2038-05-03T06:59:25Z", "ms": 2156482765367.7212 } }, "kaala": "nishita", "days": [ { "local_date": "2038-05-02", "window": { "start": { "local": "2038-05-02T23:35:37+08:00", "utc": "2038-05-02T15:35:37Z", "ms": 2156427336864.953 }, "end": { "local": "2038-05-03T00:23:37+08:00", "utc": "2038-05-02T16:23:37Z", "ms": 2156430216864.953 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-05-03", "window": { "start": { "local": "2038-05-03T23:35:31+08:00", "utc": "2038-05-03T15:35:31Z", "ms": 2156513730969.7644 }, "end": { "local": "2038-05-04T00:23:31+08:00", "utc": "2038-05-03T16:23:31Z", "ms": 2156516610969.7644 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:33 on Sun 2 May to 14:59 on Mon 3 May.", "fact": "2038-05-02T04:33:02Z → 2038-05-03T06:59:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:36–00:24 on the 2nd, 23:36–00:24 on the 3rd.", "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 2nd and 0 of 48 on the 3rd.", "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 30966 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Sunday 2 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": "2038-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Sunday 2 May. Caturdaśī runs from 12:33 on Sun 2 May to 14:59 on Mon 3 May and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-05-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22672, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-05-06T21:25:47+08:00", "utc": "2038-05-06T13:25:47Z", "ms": 2156765146912.162 }, "end": { "local": "2038-05-07T23:03:20+08:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-06T21:25:47+08:00", "utc": "2038-05-06T13:25:47Z", "ms": 2156765146912.162 }, "end": { "local": "2038-05-07T23:03:20+08:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 } }, "kaala": "purvahna", "days": [ { "local_date": "2038-05-07", "window": { "start": { "local": "2038-05-07T05:21:52+08:00", "utc": "2038-05-06T21:21:52Z", "ms": 2156793711765.4739 }, "end": { "local": "2038-05-07T09:46:59+08:00", "utc": "2038-05-07T01:46:59Z", "ms": 2156809619134.5518 } }, "covered_min": 265, "window_min": 265, "qualifies": true }, { "local_date": "2038-05-08", "window": { "start": { "local": "2038-05-08T05:21:12+08:00", "utc": "2038-05-07T21:21:12Z", "ms": 2156880072082.9297 }, "end": { "local": "2038-05-08T09:46:43+08:00", "utc": "2038-05-08T01:46:43Z", "ms": 2156896003490.7021 } }, "covered_min": 0, "window_min": 266, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 21:26 on Thu 6 May to 23:03 on Fri 7 May.", "fact": "2038-05-06T13:25:47Z → 2038-05-07T15:03:20Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:22–09:47 on the 7th, 05:21–09:47 on the 8th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 265 of 265 minutes on the 7th and 0 of 266 on the 8th.", "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 22672 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Fuzhou, 2038: Friday 7 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": "2038-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Akṣaya Tṛtīyā 2038 falls on Friday 7 May. Tṛtīyā runs from 21:26 on Thu 6 May to 23:03 on Fri 7 May and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4984, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-05-06T21:25:47+08:00", "utc": "2038-05-06T13:25:47Z", "ms": 2156765146912.162 }, "end": { "local": "2038-05-07T23:03:20+08:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-06T21:25:47+08:00", "utc": "2038-05-06T13:25:47Z", "ms": 2156765146912.162 }, "end": { "local": "2038-05-07T23:03:20+08:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-05-06", "window": { "start": { "local": "2038-05-06T18:36:42+08:00", "utc": "2038-05-06T10:36:42Z", "ms": 2156755001505.1138 }, "end": { "local": "2038-05-06T20:02:43+08:00", "utc": "2038-05-06T12:02:43Z", "ms": 2156760162873.1619 } }, "covered_min": 0, "window_min": 86, "qualifies": false }, { "local_date": "2038-05-07", "window": { "start": { "local": "2038-05-07T18:37:14+08:00", "utc": "2038-05-07T10:37:14Z", "ms": 2156841433872.7078 }, "end": { "local": "2038-05-07T20:03:06+08:00", "utc": "2038-05-07T12:03:06Z", "ms": 2156846585634.0708 } }, "covered_min": 86, "window_min": 86, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 21:26 on Thu 6 May to 23:03 on Fri 7 May.", "fact": "2038-05-06T13:25:47Z → 2038-05-07T15:03:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:37–20:03 on the 6th, 18:37–20:03 on the 7th.", "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 6th and 86 of 86 on the 7th.", "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 4984 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Fuzhou, 2038: Friday 7 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": "2038-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Paraśurāma Jayantī 2038 falls on Friday 7 May. Tṛtīyā runs from 21:26 on Thu 6 May to 23:03 on Fri 7 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vinayaka-chaturthi?on=2038-05-08", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38387, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-05-07T23:03:20+08:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 }, "end": { "local": "2038-05-09T00:17:26+08:00", "utc": "2038-05-08T16:17:26Z", "ms": 2156948246360.424 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-07T23:03:20+08:00", "utc": "2038-05-07T15:03:20Z", "ms": 2156857399978.483 }, "end": { "local": "2038-05-09T00:17:26+08:00", "utc": "2038-05-08T16:17:26Z", "ms": 2156948246360.424 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-07", "window": { "start": { "local": "2038-05-07T11:35:33+08:00", "utc": "2038-05-07T03:35:33Z", "ms": 2156816132819.0908 }, "end": { "local": "2038-05-07T12:23:33+08:00", "utc": "2038-05-07T04:23:33Z", "ms": 2156819012819.0908 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-05-08", "window": { "start": { "local": "2038-05-08T11:35:29+08:00", "utc": "2038-05-08T03:35:29Z", "ms": 2156902529194.5884 }, "end": { "local": "2038-05-08T12:23:29+08:00", "utc": "2038-05-08T04:23:29Z", "ms": 2156905409194.5884 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:03 on Fri 7 May to 00:17 on Sun 9 May.", "fact": "2038-05-07T15:03:20Z → 2038-05-08T16:17:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 7th, 11:35–12:23 on the 8th.", "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 7th and 48 of 48 on the 8th.", "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 38387 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Saturday 8 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": "2038-05-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Saturday 8 May. Caturthī runs from 23:03 on Fri 7 May to 00:17 on Sun 9 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-05-08", "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/2038/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37964, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-05-09T00:17:26+08:00", "utc": "2038-05-08T16:17:26Z", "ms": 2156948246360.424 }, "end": { "local": "2038-05-10T01:02:40+08:00", "utc": "2038-05-09T17:02:40Z", "ms": 2157037359713.4321 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-09T00:17:26+08:00", "utc": "2038-05-08T16:17:26Z", "ms": 2156948246360.424 }, "end": { "local": "2038-05-10T01:02:40+08:00", "utc": "2038-05-09T17:02:40Z", "ms": 2157037359713.4321 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-09", "window": { "start": { "local": "2038-05-09T11:35:26+08:00", "utc": "2038-05-09T03:35:26Z", "ms": 2156988926122.2483 }, "end": { "local": "2038-05-09T12:23:26+08:00", "utc": "2038-05-09T04:23:26Z", "ms": 2156991806122.2483 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-05-10", "window": { "start": { "local": "2038-05-10T11:35:24+08:00", "utc": "2038-05-10T03:35:24Z", "ms": 2157075323600.9258 }, "end": { "local": "2038-05-10T12:23:24+08:00", "utc": "2038-05-10T04:23:24Z", "ms": 2157078203600.9258 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 00:17 on Sun 9 May to 01:03 on Mon 10 May.", "fact": "2038-05-08T16:17:26Z → 2038-05-09T17:02:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 9th, 11:35–12:23 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: unstated → only-day · margin 37964 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Fuzhou, 2038: Sunday 9 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": "2038-05-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Śaṅkara Jayantī 2038 falls on Sunday 9 May. Pañcamī runs from 00:17 on Sun 9 May to 01:03 on Mon 10 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37294, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-05-11T01:13:47+08:00", "utc": "2038-05-10T17:13:47Z", "ms": 2157124427234.6833 }, "end": { "local": "2038-05-12T00:46:43+08:00", "utc": "2038-05-11T16:46:43Z", "ms": 2157209203168.8245 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-11T01:13:47+08:00", "utc": "2038-05-10T17:13:47Z", "ms": 2157124427234.6833 }, "end": { "local": "2038-05-12T00:46:43+08:00", "utc": "2038-05-11T16:46:43Z", "ms": 2157209203168.8245 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-11", "window": { "start": { "local": "2038-05-11T11:35:22+08:00", "utc": "2038-05-11T03:35:22Z", "ms": 2157161721629.1646 }, "end": { "local": "2038-05-11T12:23:22+08:00", "utc": "2038-05-11T04:23:22Z", "ms": 2157164601629.1646 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-05-12", "window": { "start": { "local": "2038-05-12T11:35:20+08:00", "utc": "2038-05-12T03:35:20Z", "ms": 2157248120205.3643 }, "end": { "local": "2038-05-12T12:23:20+08:00", "utc": "2038-05-12T04:23:20Z", "ms": 2157251000205.3643 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 01:14 on Tue 11 May to 00:47 on Wed 12 May.", "fact": "2038-05-10T17:13:47Z → 2038-05-11T16:46:43Z" }, { "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": "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 37294 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Fuzhou, 2038: Tuesday 11 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": "2038-05-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaṅgotpatti (Ganga Saptami) 2038 falls on Tuesday 11 May. Saptamī runs from 01:14 on Tue 11 May to 00:47 on Wed 12 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-05-15", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35361, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-05-14T19:27:43+08:00", "utc": "2038-05-14T11:27:43Z", "ms": 2157449263480.1677 }, "end": { "local": "2038-05-15T16:32:02+08:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-14T19:27:43+08:00", "utc": "2038-05-14T11:27:43Z", "ms": 2157449263480.1677 }, "end": { "local": "2038-05-15T16:32:02+08:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-05-15", "window": { "start": { "local": "2038-05-15T05:17:05+08:00", "utc": "2038-05-14T21:17:05Z", "ms": 2157484624660.7773 }, "end": { "local": "2038-05-15T05:17:05+08:00", "utc": "2038-05-14T21:17:05Z", "ms": 2157484624660.7773 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-05-16", "window": { "start": { "local": "2038-05-16T05:16:34+08:00", "utc": "2038-05-15T21:16:34Z", "ms": 2157570993827.1802 }, "end": { "local": "2038-05-16T05:16:34+08:00", "utc": "2038-05-15T21:16:34Z", "ms": 2157570993827.1802 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:28 on Fri 14 May to 16:32 on Sat 15 May.", "fact": "2038-05-14T11:27:43Z → 2038-05-15T08:32:02Z" }, { "step": "kaala", "text": "Sunrise is at 05:17 on the 15th and 05:17 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 35361 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Fuzhou, 2038: Saturday 15 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Mohinī Ekādaśī 2038 falls on Saturday 15 May. Ekādaśī runs from 19:28 on Fri 14 May to 16:32 on Sat 15 May and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-05-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2945, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-05-15T16:32:02+08:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 }, "end": { "local": "2038-05-16T13:12:25+08:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-15T16:32:02+08:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 }, "end": { "local": "2038-05-16T13:12:25+08:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-15", "window": { "start": { "local": "2038-05-15T11:35:19+08:00", "utc": "2038-05-15T03:35:19Z", "ms": 2157507319208.0005 }, "end": { "local": "2038-05-15T12:23:19+08:00", "utc": "2038-05-15T04:23:19Z", "ms": 2157510199208.0005 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-05-16", "window": { "start": { "local": "2038-05-16T11:35:20+08:00", "utc": "2038-05-16T03:35:20Z", "ms": 2157593719964.397 }, "end": { "local": "2038-05-16T12:23:20+08:00", "utc": "2038-05-16T04:23:20Z", "ms": 2157596599964.397 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 16:32 on Sat 15 May to 13:12 on Sun 16 May.", "fact": "2038-05-15T08:32:02Z → 2038-05-16T05:12:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 15th, 11:35–12:23 on the 16th.", "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 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2945 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Fuzhou, 2038: Sunday 16 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": "2038-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Paraśurāma Dvādaśī 2038 falls on Sunday 16 May. Dvādaśī runs from 16:32 on Sat 15 May to 13:12 on Sun 16 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2945, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-05-15T16:32:02+08:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 }, "end": { "local": "2038-05-16T13:12:25+08:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-15T16:32:02+08:00", "utc": "2038-05-15T08:32:02Z", "ms": 2157525122460.4966 }, "end": { "local": "2038-05-16T13:12:25+08:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-15", "window": { "start": { "local": "2038-05-15T11:35:19+08:00", "utc": "2038-05-15T03:35:19Z", "ms": 2157507319208.0005 }, "end": { "local": "2038-05-15T12:23:19+08:00", "utc": "2038-05-15T04:23:19Z", "ms": 2157510199208.0005 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-05-16", "window": { "start": { "local": "2038-05-16T11:35:20+08:00", "utc": "2038-05-16T03:35:20Z", "ms": 2157593719964.397 }, "end": { "local": "2038-05-16T12:23:20+08:00", "utc": "2038-05-16T04:23:20Z", "ms": 2157596599964.397 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 16:32 on Sat 15 May to 13:12 on Sun 16 May.", "fact": "2038-05-15T08:32:02Z → 2038-05-16T05:12:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 15th, 11:35–12:23 on the 16th.", "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 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2945 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Fuzhou, 2038: Sunday 16 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": "2038-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Rukmiṇī Dvādaśī 2038 falls on Sunday 16 May. Dvādaśī runs from 16:32 on Sat 15 May to 13:12 on Sun 16 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/pradosha-vrata?on=2038-05-16", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19781, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-05-16T13:12:25+08:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 }, "end": { "local": "2038-05-17T09:37:47+08:00", "utc": "2038-05-17T01:37:47Z", "ms": 2157673067074.3174 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-16T13:12:25+08:00", "utc": "2038-05-16T05:12:25Z", "ms": 2157599544656.9756 }, "end": { "local": "2038-05-17T09:37:47+08:00", "utc": "2038-05-17T01:37:47Z", "ms": 2157673067074.3174 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-05-16", "window": { "start": { "local": "2038-05-16T18:42:06+08:00", "utc": "2038-05-16T10:42:06Z", "ms": 2157619326101.6138 }, "end": { "local": "2038-05-16T20:06:38+08:00", "utc": "2038-05-16T12:06:38Z", "ms": 2157624397843.5852 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "2038-05-17", "window": { "start": { "local": "2038-05-17T18:42:38+08:00", "utc": "2038-05-17T10:42:38Z", "ms": 2157705758363.9922 }, "end": { "local": "2038-05-17T20:07:02+08:00", "utc": "2038-05-17T12:07:02Z", "ms": 2157710822007.9111 } }, "covered_min": 0, "window_min": 84, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:12 on Sun 16 May to 09:38 on Mon 17 May.", "fact": "2038-05-16T05:12:25Z → 2038-05-17T01:37:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:42–20:07 on the 16th, 18:43–20:07 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 85 of 85 minutes on the 16th and 0 of 84 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 19781 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Sunday 16 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": "2038-05-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Sunday 16 May. Trayodaśī runs from 13:12 on Sun 16 May to 09:38 on Mon 17 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-05-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32691, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-05-17T09:37:47+08:00", "utc": "2038-05-17T01:37:47Z", "ms": 2157673067074.3174 }, "end": { "local": "2038-05-18T05:58:03+08:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-17T09:37:47+08:00", "utc": "2038-05-17T01:37:47Z", "ms": 2157673067074.3174 }, "end": { "local": "2038-05-18T05:58:03+08:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-05-17", "window": { "start": { "local": "2038-05-17T18:42:38+08:00", "utc": "2038-05-17T10:42:38Z", "ms": 2157705758363.9922 }, "end": { "local": "2038-05-17T20:07:02+08:00", "utc": "2038-05-17T12:07:02Z", "ms": 2157710822007.9111 } }, "covered_min": 84, "window_min": 84, "qualifies": true }, { "local_date": "2038-05-18", "window": { "start": { "local": "2038-05-18T18:43:11+08:00", "utc": "2038-05-18T10:43:11Z", "ms": 2157792190528.0718 }, "end": { "local": "2038-05-18T20:07:26+08:00", "utc": "2038-05-18T12:07:26Z", "ms": 2157797246247.3577 } }, "covered_min": 0, "window_min": 84, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:38 on Mon 17 May to 05:58 on Tue 18 May.", "fact": "2038-05-17T01:37:47Z → 2038-05-17T21:58:03Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:07 on the 17th, 18:43–20:07 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 84 of 84 minutes on the 17th and 0 of 84 on the 18th.", "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 32691 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Fuzhou, 2038: Monday 17 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": "2038-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2038 falls on Monday 17 May. Caturdaśī runs from 09:38 on Mon 17 May to 05:58 on Tue 18 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20240, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-05-18T05:58:03+08:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 }, "end": { "local": "2038-05-19T02:23:36+08:00", "utc": "2038-05-18T18:23:36Z", "ms": 2157819815661.7263 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-18T05:58:03+08:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 }, "end": { "local": "2038-05-19T02:23:36+08:00", "utc": "2038-05-18T18:23:36Z", "ms": 2157819815661.7263 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-18", "window": { "start": { "local": "2038-05-18T11:35:23+08:00", "utc": "2038-05-18T03:35:23Z", "ms": 2157766523110.7275 }, "end": { "local": "2038-05-18T12:23:23+08:00", "utc": "2038-05-18T04:23:23Z", "ms": 2157769403110.7275 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-05-19", "window": { "start": { "local": "2038-05-19T11:35:26+08:00", "utc": "2038-05-19T03:35:26Z", "ms": 2157852925500.9734 }, "end": { "local": "2038-05-19T12:23:26+08:00", "utc": "2038-05-19T04:23:26Z", "ms": 2157855805500.9734 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:58 on Tue 18 May to 02:24 on Wed 19 May.", "fact": "2038-05-17T21:58:03Z → 2038-05-18T18:23:36Z" }, { "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": "Pūrṇimā 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: unstated → only-day · margin 20240 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Fuzhou, 2038: Tuesday 18 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": "2038-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Buddha Pūrṇimā 2038 falls on Tuesday 18 May. Pūrṇimā runs from 05:58 on Tue 18 May to 02:24 on Wed 19 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20240, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-05-18T05:58:03+08:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 }, "end": { "local": "2038-05-19T02:23:36+08:00", "utc": "2038-05-18T18:23:36Z", "ms": 2157819815661.7263 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-18T05:58:03+08:00", "utc": "2038-05-17T21:58:03Z", "ms": 2157746283479.4697 }, "end": { "local": "2038-05-19T02:23:36+08:00", "utc": "2038-05-18T18:23:36Z", "ms": 2157819815661.7263 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-05-18", "window": { "start": { "local": "2038-05-18T11:35:23+08:00", "utc": "2038-05-18T03:35:23Z", "ms": 2157766523110.7275 }, "end": { "local": "2038-05-18T12:23:23+08:00", "utc": "2038-05-18T04:23:23Z", "ms": 2157769403110.7275 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-05-19", "window": { "start": { "local": "2038-05-19T11:35:26+08:00", "utc": "2038-05-19T03:35:26Z", "ms": 2157852925500.9734 }, "end": { "local": "2038-05-19T12:23:26+08:00", "utc": "2038-05-19T04:23:26Z", "ms": 2157855805500.9734 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 05:58 on Tue 18 May to 02:24 on Wed 19 May.", "fact": "2038-05-17T21:58:03Z → 2038-05-18T18:23:36Z" }, { "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": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 20240 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Fuzhou, 2038: Tuesday 18 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": "2038-05-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Sampat Gaurī Vrata 2038 falls on Tuesday 18 May. Pūrṇimā runs from 05:58 on Tue 18 May to 02:24 on Wed 19 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-05-21", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13225, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-05-21T17:52:41+08:00", "utc": "2038-05-21T09:52:41Z", "ms": 2158048361153.413 }, "end": { "local": "2038-05-22T16:15:33+08:00", "utc": "2038-05-22T08:15:33Z", "ms": 2158128933381.5962 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-21T17:52:41+08:00", "utc": "2038-05-21T09:52:41Z", "ms": 2158048361153.413 }, "end": { "local": "2038-05-22T16:15:33+08:00", "utc": "2038-05-22T08:15:33Z", "ms": 2158128933381.5962 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-05-21", "window": { "start": { "local": "2038-05-21T21:33:06+08:00", "utc": "2038-05-21T13:33:06Z", "ms": 2158061586410.126 }, "end": { "local": "2038-05-21T21:33:06+08:00", "utc": "2038-05-21T13:33:06Z", "ms": 2158061586410.126 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-05-22", "window": { "start": { "local": "2038-05-22T22:30:11+08:00", "utc": "2038-05-22T14:30:11Z", "ms": 2158151411296.4614 }, "end": { "local": "2038-05-22T22:30:11+08:00", "utc": "2038-05-22T14:30:11Z", "ms": 2158151411296.4614 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:53 on Fri 21 May to 16:16 on Sat 22 May.", "fact": "2038-05-21T09:52:41Z → 2038-05-22T08:15:33Z" }, { "step": "kaala", "text": "Moonrise is at 21:33 on the 21st and 22:30 on the 22nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 13225 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Friday 21 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": "2038-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Friday 21 May. Caturthī runs from 17:53 on Fri 21 May to 16:16 on Sat 22 May and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-05-21", "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/2038/ekadashi?on=2038-05-29", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18284, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-05-28T21:41:31+08:00", "utc": "2038-05-28T13:41:31Z", "ms": 2158666891011.542 }, "end": { "local": "2038-05-30T00:06:46+08:00", "utc": "2038-05-29T16:06:46Z", "ms": 2158762006377.6685 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-28T21:41:31+08:00", "utc": "2038-05-28T13:41:31Z", "ms": 2158666891011.542 }, "end": { "local": "2038-05-30T00:06:46+08:00", "utc": "2038-05-29T16:06:46Z", "ms": 2158762006377.6685 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-05-29", "window": { "start": { "local": "2038-05-29T05:11:44+08:00", "utc": "2038-05-28T21:11:44Z", "ms": 2158693904292.133 }, "end": { "local": "2038-05-29T05:11:44+08:00", "utc": "2038-05-28T21:11:44Z", "ms": 2158693904292.133 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-05-30", "window": { "start": { "local": "2038-05-30T05:11:31+08:00", "utc": "2038-05-29T21:11:31Z", "ms": 2158780290873.5469 }, "end": { "local": "2038-05-30T05:11:31+08:00", "utc": "2038-05-29T21:11:31Z", "ms": 2158780290873.5469 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:42 on Fri 28 May to 00:07 on Sun 30 May.", "fact": "2038-05-28T13:41:31Z → 2038-05-29T16:06:46Z" }, { "step": "kaala", "text": "Sunrise is at 05:12 on the 29th and 05:12 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 18284 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Fuzhou, 2038: Saturday 29 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-05-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Aparā Ekādaśī 2038 falls on Saturday 29 May. Ekādaśī runs from 21:42 on Fri 28 May to 00:07 on Sun 30 May and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-05-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-05-31", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-05-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22721, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-05-31T02:30:58+08:00", "utc": "2038-05-30T18:30:58Z", "ms": 2158857058217.1162 }, "end": { "local": "2038-06-01T04:45:44+08:00", "utc": "2038-05-31T20:45:44Z", "ms": 2158951543590.295 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-05-31T02:30:58+08:00", "utc": "2038-05-30T18:30:58Z", "ms": 2158857058217.1162 }, "end": { "local": "2038-06-01T04:45:44+08:00", "utc": "2038-05-31T20:45:44Z", "ms": 2158951543590.295 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-05-30", "window": { "start": { "local": "2038-05-30T18:49:22+08:00", "utc": "2038-05-30T10:49:22Z", "ms": 2158829361962.1226 }, "end": { "local": "2038-05-30T20:12:18+08:00", "utc": "2038-05-30T12:12:18Z", "ms": 2158834337531.2776 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "2038-05-31", "window": { "start": { "local": "2038-05-31T18:49:51+08:00", "utc": "2038-05-31T10:49:51Z", "ms": 2158915790956.1638 }, "end": { "local": "2038-05-31T20:12:41+08:00", "utc": "2038-05-31T12:12:41Z", "ms": 2158920761209.9873 } }, "covered_min": 83, "window_min": 83, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:31 on Mon 31 May to 04:46 on Tue 1 Jun.", "fact": "2038-05-30T18:30:58Z → 2038-05-31T20:45:44Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:49–20:12 on the 30th, 18:50–20:13 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 83 minutes on the 30th and 83 of 83 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 22721 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Monday 31 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": "2038-05-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-05-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Monday 31 May. Trayodaśī runs from 02:31 on Mon 31 May to 04:46 on Tue 1 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-05-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-06-01", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15674, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-06-01T04:45:44+08:00", "utc": "2038-05-31T20:45:44Z", "ms": 2158951543590.295 }, "end": { "local": "2038-06-02T06:44:53+08:00", "utc": "2038-06-01T22:44:53Z", "ms": 2159045093165.6843 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-01T04:45:44+08:00", "utc": "2038-05-31T20:45:44Z", "ms": 2158951543590.295 }, "end": { "local": "2038-06-02T06:44:53+08:00", "utc": "2038-06-01T22:44:53Z", "ms": 2159045093165.6843 } }, "kaala": "nishita", "days": [ { "local_date": "2038-05-31", "window": { "start": { "local": "2038-05-31T23:36:29+08:00", "utc": "2038-05-31T15:36:29Z", "ms": 2158932989408.002 }, "end": { "local": "2038-06-01T00:24:29+08:00", "utc": "2038-05-31T16:24:29Z", "ms": 2158935869408.002 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-06-01", "window": { "start": { "local": "2038-06-01T23:36:39+08:00", "utc": "2038-06-01T15:36:39Z", "ms": 2159019398883.917 }, "end": { "local": "2038-06-02T00:24:39+08:00", "utc": "2038-06-01T16:24:39Z", "ms": 2159022278883.917 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:46 on Tue 1 Jun to 06:45 on Wed 2 Jun.", "fact": "2038-05-31T20:45:44Z → 2038-06-01T22:44:53Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:36–00:24 on the 31st, 23:37–00:25 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 0 of 48 minutes on the 31st and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15674 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Tuesday 1 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": "2038-06-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Tuesday 1 June. Caturdaśī runs from 04:46 on Tue 1 Jun to 06:45 on Wed 2 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-06-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2239, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-06-05T10:33:40+08:00", "utc": "2038-06-05T02:33:40Z", "ms": 2159318019623.025 }, "end": { "local": "2038-06-06T11:00:14+08:00", "utc": "2038-06-06T03:00:14Z", "ms": 2159406014457.487 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-05T10:33:40+08:00", "utc": "2038-06-05T02:33:40Z", "ms": 2159318019623.025 }, "end": { "local": "2038-06-06T11:00:14+08:00", "utc": "2038-06-06T03:00:14Z", "ms": 2159406014457.487 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-06-05", "window": { "start": { "local": "2038-06-05T11:37:23+08:00", "utc": "2038-06-05T03:37:23Z", "ms": 2159321842832.624 }, "end": { "local": "2038-06-05T12:25:23+08:00", "utc": "2038-06-05T04:25:23Z", "ms": 2159324722832.624 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-06-06", "window": { "start": { "local": "2038-06-06T11:37:33+08:00", "utc": "2038-06-06T03:37:33Z", "ms": 2159408253455.762 }, "end": { "local": "2038-06-06T12:25:33+08:00", "utc": "2038-06-06T04:25:33Z", "ms": 2159411133455.762 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 10:34 on Sat 5 Jun to 11:00 on Sun 6 Jun.", "fact": "2038-06-05T02:33:40Z → 2038-06-06T03:00:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 5th, 11:38–12:26 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 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. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 2239 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Fuzhou, 2038: Saturday 5 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": "2038-06-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Rambhā Tṛtīyā 2038 falls on Saturday 5 June. Tṛtīyā runs from 10:34 on Sat 5 Jun to 11:00 on Sun 6 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vinayaka-chaturthi?on=2038-06-06", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2239, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-06-06T11:00:14+08:00", "utc": "2038-06-06T03:00:14Z", "ms": 2159406014457.487 }, "end": { "local": "2038-06-07T10:59:34+08:00", "utc": "2038-06-07T02:59:34Z", "ms": 2159492373667.436 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-06T11:00:14+08:00", "utc": "2038-06-06T03:00:14Z", "ms": 2159406014457.487 }, "end": { "local": "2038-06-07T10:59:34+08:00", "utc": "2038-06-07T02:59:34Z", "ms": 2159492373667.436 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-06-06", "window": { "start": { "local": "2038-06-06T11:37:33+08:00", "utc": "2038-06-06T03:37:33Z", "ms": 2159408253455.762 }, "end": { "local": "2038-06-06T12:25:33+08:00", "utc": "2038-06-06T04:25:33Z", "ms": 2159411133455.762 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-06-07", "window": { "start": { "local": "2038-06-07T11:37:44+08:00", "utc": "2038-06-07T03:37:44Z", "ms": 2159494664368.1628 }, "end": { "local": "2038-06-07T12:25:44+08:00", "utc": "2038-06-07T04:25:44Z", "ms": 2159497544368.1628 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:00 on Sun 6 Jun to 11:00 on Mon 7 Jun.", "fact": "2038-06-06T03:00:14Z → 2038-06-07T02:59:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 6th, 11:38–12:26 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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2239 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Sunday 6 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": "2038-06-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-06", "confidence": "boundary" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Sunday 6 June. Caturthī runs from 11:00 on Sun 6 Jun to 11:00 on Mon 7 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-06-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4046, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-06-08T10:30:29+08:00", "utc": "2038-06-08T02:30:29Z", "ms": 2159577029452.3748 }, "end": { "local": "2038-06-09T09:32:23+08:00", "utc": "2038-06-09T01:32:23Z", "ms": 2159659942582.9983 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-08T10:30:29+08:00", "utc": "2038-06-08T02:30:29Z", "ms": 2159577029452.3748 }, "end": { "local": "2038-06-09T09:32:23+08:00", "utc": "2038-06-09T01:32:23Z", "ms": 2159659942582.9983 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-06-08", "window": { "start": { "local": "2038-06-08T11:37:56+08:00", "utc": "2038-06-08T03:37:56Z", "ms": 2159581075546.5435 }, "end": { "local": "2038-06-08T12:25:56+08:00", "utc": "2038-06-08T04:25:56Z", "ms": 2159583955546.5435 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-06-09", "window": { "start": { "local": "2038-06-09T11:38:07+08:00", "utc": "2038-06-09T03:38:07Z", "ms": 2159667486967.688 }, "end": { "local": "2038-06-09T12:26:07+08:00", "utc": "2038-06-09T04:26:07Z", "ms": 2159670366967.688 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 10:30 on Tue 8 Jun to 09:32 on Wed 9 Jun.", "fact": "2038-06-08T02:30:29Z → 2038-06-09T01:32:23Z" }, { "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": "Ṣaṣṭhī 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: paraviddha → only-day · margin 4046 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Fuzhou, 2038: Tuesday 8 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": "2038-06-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Araṇya Gaurī Vrata 2038 falls on Tuesday 8 June. Ṣaṣṭhī runs from 10:30 on Tue 8 Jun to 09:32 on Wed 9 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4046, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-06-08T10:30:29+08:00", "utc": "2038-06-08T02:30:29Z", "ms": 2159577029452.3748 }, "end": { "local": "2038-06-09T09:32:23+08:00", "utc": "2038-06-09T01:32:23Z", "ms": 2159659942582.9983 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-08T10:30:29+08:00", "utc": "2038-06-08T02:30:29Z", "ms": 2159577029452.3748 }, "end": { "local": "2038-06-09T09:32:23+08:00", "utc": "2038-06-09T01:32:23Z", "ms": 2159659942582.9983 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-06-08", "window": { "start": { "local": "2038-06-08T11:37:56+08:00", "utc": "2038-06-08T03:37:56Z", "ms": 2159581075546.5435 }, "end": { "local": "2038-06-08T12:25:56+08:00", "utc": "2038-06-08T04:25:56Z", "ms": 2159583955546.5435 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-06-09", "window": { "start": { "local": "2038-06-09T11:38:07+08:00", "utc": "2038-06-09T03:38:07Z", "ms": 2159667486967.688 }, "end": { "local": "2038-06-09T12:26:07+08:00", "utc": "2038-06-09T04:26:07Z", "ms": 2159670366967.688 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 10:30 on Tue 8 Jun to 09:32 on Wed 9 Jun.", "fact": "2038-06-08T02:30:29Z → 2038-06-09T01:32:23Z" }, { "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": "Ṣaṣṭhī 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 4046 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Fuzhou, 2038: Tuesday 8 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": "2038-06-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2038 falls on Tuesday 8 June. Ṣaṣṭhī runs from 10:30 on Tue 8 Jun to 09:32 on Wed 9 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-06-13", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14329, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-06-13T01:11:44+08:00", "utc": "2038-06-12T17:11:44Z", "ms": 2159975503852.815 }, "end": { "local": "2038-06-13T22:16:45+08:00", "utc": "2038-06-13T14:16:45Z", "ms": 2160051405469.958 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-13T01:11:44+08:00", "utc": "2038-06-12T17:11:44Z", "ms": 2159975503852.815 }, "end": { "local": "2038-06-13T22:16:45+08:00", "utc": "2038-06-13T14:16:45Z", "ms": 2160051405469.958 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-06-13", "window": { "start": { "local": "2038-06-13T05:10:33+08:00", "utc": "2038-06-12T21:10:33Z", "ms": 2159989833332.904 }, "end": { "local": "2038-06-13T05:10:33+08:00", "utc": "2038-06-12T21:10:33Z", "ms": 2159989833332.904 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-06-14", "window": { "start": { "local": "2038-06-14T05:10:38+08:00", "utc": "2038-06-13T21:10:38Z", "ms": 2160076238073.9775 }, "end": { "local": "2038-06-14T05:10:38+08:00", "utc": "2038-06-13T21:10:38Z", "ms": 2160076238073.9775 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:12 on Sun 13 Jun to 22:17 on Sun 13 Jun.", "fact": "2038-06-12T17:11:44Z → 2038-06-13T14:16:45Z" }, { "step": "kaala", "text": "Sunrise is at 05:11 on the 13th and 05:11 on the 14th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 13th and is not on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14329 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Fuzhou, 2038: Sunday 13 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": "2038-06-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Nirjalā Ekādaśī 2038 falls on Sunday 13 June. Ekādaśī runs from 01:12 on Sun 13 Jun to 22:17 on Sun 13 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-06-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24375, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-06-13T22:16:45+08:00", "utc": "2038-06-13T14:16:45Z", "ms": 2160051405469.958 }, "end": { "local": "2038-06-14T19:13:22+08:00", "utc": "2038-06-14T11:13:22Z", "ms": 2160126802113.1277 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-13T22:16:45+08:00", "utc": "2038-06-13T14:16:45Z", "ms": 2160051405469.958 }, "end": { "local": "2038-06-14T19:13:22+08:00", "utc": "2038-06-14T11:13:22Z", "ms": 2160126802113.1277 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-06-13", "window": { "start": { "local": "2038-06-13T11:38:55+08:00", "utc": "2038-06-13T03:38:55Z", "ms": 2160013134632.5908 }, "end": { "local": "2038-06-13T12:26:55+08:00", "utc": "2038-06-13T04:26:55Z", "ms": 2160016014632.5908 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-06-14", "window": { "start": { "local": "2038-06-14T11:39:07+08:00", "utc": "2038-06-14T03:39:07Z", "ms": 2160099546939.146 }, "end": { "local": "2038-06-14T12:27:07+08:00", "utc": "2038-06-14T04:27:07Z", "ms": 2160102426939.146 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 22:17 on Sun 13 Jun to 19:13 on Mon 14 Jun.", "fact": "2038-06-13T14:16:45Z → 2038-06-14T11:13:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 13th, 11:39–12:27 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 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 24375 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Fuzhou, 2038: Monday 14 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": "2038-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Śrī Rāma Dvādaśī 2038 falls on Monday 14 June. Dvādaśī runs from 22:17 on Sun 13 Jun to 19:13 on Mon 14 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/pradosha-vrata?on=2038-06-14", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1066, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-06-14T19:13:22+08:00", "utc": "2038-06-14T11:13:22Z", "ms": 2160126802113.1277 }, "end": { "local": "2038-06-15T16:09:06+08:00", "utc": "2038-06-15T08:09:06Z", "ms": 2160202146204.4304 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-14T19:13:22+08:00", "utc": "2038-06-14T11:13:22Z", "ms": 2160126802113.1277 }, "end": { "local": "2038-06-15T16:09:06+08:00", "utc": "2038-06-15T08:09:06Z", "ms": 2160202146204.4304 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-06-14", "window": { "start": { "local": "2038-06-14T18:55:36+08:00", "utc": "2038-06-14T10:55:36Z", "ms": 2160125735804.3142 }, "end": { "local": "2038-06-14T20:17:37+08:00", "utc": "2038-06-14T12:17:37Z", "ms": 2160130656886.6516 } }, "covered_min": 64, "window_min": 82, "qualifies": true }, { "local_date": "2038-06-15", "window": { "start": { "local": "2038-06-15T18:55:55+08:00", "utc": "2038-06-15T10:55:55Z", "ms": 2160212154804.3425 }, "end": { "local": "2038-06-15T20:17:54+08:00", "utc": "2038-06-15T12:17:54Z", "ms": 2160217074278.6477 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:13 on Mon 14 Jun to 16:09 on Tue 15 Jun.", "fact": "2038-06-14T11:13:22Z → 2038-06-15T08:09:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:18 on the 14th, 18:56–20:18 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 64 of 82 minutes on the 14th and 0 of 82 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 1066 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Monday 14 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": "2038-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Monday 14 June. Trayodaśī runs from 19:13 on Mon 14 Jun to 16:09 on Tue 15 Jun and covers 64 of 82 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-06-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20649, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-06-16T13:12:04+08:00", "utc": "2038-06-16T05:12:04Z", "ms": 2160277924090.175 }, "end": { "local": "2038-06-17T10:30:36+08:00", "utc": "2038-06-17T02:30:36Z", "ms": 2160354635713.282 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-16T13:12:04+08:00", "utc": "2038-06-16T05:12:04Z", "ms": 2160277924090.175 }, "end": { "local": "2038-06-17T10:30:36+08:00", "utc": "2038-06-17T02:30:36Z", "ms": 2160354635713.282 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-06-16", "window": { "start": { "local": "2038-06-16T18:56:13+08:00", "utc": "2038-06-16T10:56:13Z", "ms": 2160298572910.703 }, "end": { "local": "2038-06-16T20:18:11+08:00", "utc": "2038-06-16T12:18:11Z", "ms": 2160303491039.7708 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "2038-06-17", "window": { "start": { "local": "2038-06-17T18:56:30+08:00", "utc": "2038-06-17T10:56:30Z", "ms": 2160384990102.4797 }, "end": { "local": "2038-06-17T20:18:27+08:00", "utc": "2038-06-17T12:18:27Z", "ms": 2160389907149.7964 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 13:12 on Wed 16 Jun to 10:31 on Thu 17 Jun.", "fact": "2038-06-16T05:12:04Z → 2038-06-17T02:30:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:18 on the 16th, 18:57–20:18 on the 17th.", "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 16th and 0 of 82 on the 17th.", "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 20649 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Fuzhou, 2038: Wednesday 16 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": "2038-06-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Vaṭa Sāvitrī Vrata 2038 falls on Wednesday 16 June. Pūrṇimā runs from 13:12 on Wed 16 Jun to 10:31 on Thu 17 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-06-20", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24747, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-06-20T05:17:29+08:00", "utc": "2038-06-19T21:17:29Z", "ms": 2160595049112.0947 }, "end": { "local": "2038-06-21T04:50:33+08:00", "utc": "2038-06-20T20:50:33Z", "ms": 2160679833024.6113 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-20T05:17:29+08:00", "utc": "2038-06-19T21:17:29Z", "ms": 2160595049112.0947 }, "end": { "local": "2038-06-21T04:50:33+08:00", "utc": "2038-06-20T20:50:33Z", "ms": 2160679833024.6113 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-06-19", "window": { "start": { "local": "2038-06-19T21:09:45+08:00", "utc": "2038-06-19T13:09:45Z", "ms": 2160565784795.8545 }, "end": { "local": "2038-06-19T21:09:45+08:00", "utc": "2038-06-19T13:09:45Z", "ms": 2160565784795.8545 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-06-20", "window": { "start": { "local": "2038-06-20T21:58:06+08:00", "utc": "2038-06-20T13:58:06Z", "ms": 2160655086295.9539 }, "end": { "local": "2038-06-20T21:58:06+08:00", "utc": "2038-06-20T13:58:06Z", "ms": 2160655086295.9539 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:17 on Sun 20 Jun to 04:51 on Mon 21 Jun.", "fact": "2038-06-19T21:17:29Z → 2038-06-20T20:50:33Z" }, { "step": "kaala", "text": "Moonrise is at 21:10 on the 19th and 21:58 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 24747 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Sunday 20 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": "2038-06-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Sunday 20 June. Caturthī runs from 05:17 on Sun 20 Jun to 04:51 on Mon 21 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-06-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/ekadashi?on=2038-06-28", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33092, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-06-27T14:24:47+08:00", "utc": "2038-06-27T06:24:47Z", "ms": 2161232686503.5234 }, "end": { "local": "2038-06-28T16:38:25+08:00", "utc": "2038-06-28T08:38:25Z", "ms": 2161327104906.3674 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-27T14:24:47+08:00", "utc": "2038-06-27T06:24:47Z", "ms": 2161232686503.5234 }, "end": { "local": "2038-06-28T16:38:25+08:00", "utc": "2038-06-28T08:38:25Z", "ms": 2161327104906.3674 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-06-27", "window": { "start": { "local": "2038-06-27T05:13:14+08:00", "utc": "2038-06-26T21:13:14Z", "ms": 2161199594310.6296 }, "end": { "local": "2038-06-27T05:13:14+08:00", "utc": "2038-06-26T21:13:14Z", "ms": 2161199594310.6296 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-06-28", "window": { "start": { "local": "2038-06-28T05:13:33+08:00", "utc": "2038-06-27T21:13:33Z", "ms": 2161286012886.3997 }, "end": { "local": "2038-06-28T05:13:33+08:00", "utc": "2038-06-27T21:13:33Z", "ms": 2161286012886.3997 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:25 on Sun 27 Jun to 16:38 on Mon 28 Jun.", "fact": "2038-06-27T06:24:47Z → 2038-06-28T08:38:25Z" }, { "step": "kaala", "text": "Sunrise is at 05:13 on the 27th and 05:14 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 33092 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Fuzhou, 2038: Monday 28 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": "2038-06-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Yoginī Ekādaśī 2038 falls on Monday 28 June. Ekādaśī runs from 14:25 on Sun 27 Jun to 16:38 on Mon 28 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-06-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-06-29", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-29", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1056, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-06-29T18:33:35+08:00", "utc": "2038-06-29T10:33:35Z", "ms": 2161420414831.4539 }, "end": { "local": "2038-06-30T20:03:12+08:00", "utc": "2038-06-30T12:03:12Z", "ms": 2161512192318.6467 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-29T18:33:35+08:00", "utc": "2038-06-29T10:33:35Z", "ms": 2161420414831.4539 }, "end": { "local": "2038-06-30T20:03:12+08:00", "utc": "2038-06-30T12:03:12Z", "ms": 2161512192318.6467 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-06-29", "window": { "start": { "local": "2038-06-29T18:58:37+08:00", "utc": "2038-06-29T10:58:37Z", "ms": 2161421917432.856 }, "end": { "local": "2038-06-29T20:20:42+08:00", "utc": "2038-06-29T12:20:42Z", "ms": 2161426842099.3794 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "2038-06-30", "window": { "start": { "local": "2038-06-30T18:58:41+08:00", "utc": "2038-06-30T10:58:41Z", "ms": 2161508320834.5723 }, "end": { "local": "2038-06-30T20:20:48+08:00", "utc": "2038-06-30T12:20:48Z", "ms": 2161513247835.2278 } }, "covered_min": 65, "window_min": 82, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:34 on Tue 29 Jun to 20:03 on Wed 30 Jun.", "fact": "2038-06-29T10:33:35Z → 2038-06-30T12:03:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:59–20:21 on the 29th, 18:59–20:21 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 82 of 82 minutes on the 29th and 65 of 82 on the 30th.", "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 1056 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Tuesday 29 June.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-06-29", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-29", "confidence": "boundary" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Tuesday 29 June. Trayodaśī runs from 18:34 on Tue 29 Jun to 20:03 on Wed 30 Jun and covers all of pradoṣa that evening. It also reaches the next evening for 65 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/2038/pradosha-vrata?on=2038-06-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-06-30", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-06-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9576, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-06-30T20:03:12+08:00", "utc": "2038-06-30T12:03:12Z", "ms": 2161512192318.6467 }, "end": { "local": "2038-07-01T21:03:13+08:00", "utc": "2038-07-01T13:03:13Z", "ms": 2161602193448.8325 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-06-30T20:03:12+08:00", "utc": "2038-06-30T12:03:12Z", "ms": 2161512192318.6467 }, "end": { "local": "2038-07-01T21:03:13+08:00", "utc": "2038-07-01T13:03:13Z", "ms": 2161602193448.8325 } }, "kaala": "nishita", "days": [ { "local_date": "2038-06-30", "window": { "start": { "local": "2038-06-30T23:42:37+08:00", "utc": "2038-06-30T15:42:37Z", "ms": 2161525357087.0305 }, "end": { "local": "2038-07-01T00:30:37+08:00", "utc": "2038-06-30T16:30:37Z", "ms": 2161528237087.0305 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-07-01", "window": { "start": { "local": "2038-07-01T23:42:49+08:00", "utc": "2038-07-01T15:42:49Z", "ms": 2161611768998.6533 }, "end": { "local": "2038-07-02T00:30:49+08:00", "utc": "2038-07-01T16:30:49Z", "ms": 2161614648998.6533 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:03 on Wed 30 Jun to 21:03 on Thu 1 Jul.", "fact": "2038-06-30T12:03:12Z → 2038-07-01T13:03:13Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:43–00:31 on the 30th, 23:43–00:31 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 30th 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 9576 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Wednesday 30 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": "2038-06-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-06-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Wednesday 30 June. Caturdaśī runs from 20:03 on Wed 30 Jun to 21:03 on Thu 1 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-06-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30579, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2038-07-03T21:30:46+08:00", "utc": "2038-07-03T13:30:46Z", "ms": 2161776645841.234 }, "end": { "local": "2038-07-04T21:00:50+08:00", "utc": "2038-07-04T13:00:50Z", "ms": 2161861250247.8948 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-03T21:30:46+08:00", "utc": "2038-07-03T13:30:46Z", "ms": 2161776645841.234 }, "end": { "local": "2038-07-04T21:00:50+08:00", "utc": "2038-07-04T13:00:50Z", "ms": 2161861250247.8948 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-07-03", "window": { "start": { "local": "2038-07-03T11:43:01+08:00", "utc": "2038-07-03T03:43:01Z", "ms": 2161741380516.3281 }, "end": { "local": "2038-07-03T12:31:01+08:00", "utc": "2038-07-03T04:31:01Z", "ms": 2161744260516.3281 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-07-04", "window": { "start": { "local": "2038-07-04T11:43:11+08:00", "utc": "2038-07-04T03:43:11Z", "ms": 2161827791239.8643 }, "end": { "local": "2038-07-04T12:31:11+08:00", "utc": "2038-07-04T04:31:11Z", "ms": 2161830671239.8643 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 21:31 on Sat 3 Jul to 21:01 on Sun 4 Jul.", "fact": "2038-07-03T13:30:46Z → 2038-07-04T13:00:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 3rd, 11:43–12:31 on the 4th.", "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 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30579 s" }, { "step": "ruling", "text": "Rathayātrā, Fuzhou, 2038: Sunday 4 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": "2038-07-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Rathayātrā 2038 falls on Sunday 4 July. Dvitīyā runs from 21:31 on Sat 3 Jul to 21:01 on Sun 4 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vinayaka-chaturthi?on=2038-07-06", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22521, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-07-05T20:05:10+08:00", "utc": "2038-07-05T12:05:10Z", "ms": 2161944310449.2988 }, "end": { "local": "2038-07-06T18:46:53+08:00", "utc": "2038-07-06T10:46:53Z", "ms": 2162026012705.9524 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-05T20:05:10+08:00", "utc": "2038-07-05T12:05:10Z", "ms": 2161944310449.2988 }, "end": { "local": "2038-07-06T18:46:53+08:00", "utc": "2038-07-06T10:46:53Z", "ms": 2162026012705.9524 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-07-05", "window": { "start": { "local": "2038-07-05T11:43:22+08:00", "utc": "2038-07-05T03:43:22Z", "ms": 2161914201636.3296 }, "end": { "local": "2038-07-05T12:31:22+08:00", "utc": "2038-07-05T04:31:22Z", "ms": 2161917081636.3296 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-07-06", "window": { "start": { "local": "2038-07-06T11:43:32+08:00", "utc": "2038-07-06T03:43:32Z", "ms": 2162000611681.712 }, "end": { "local": "2038-07-06T12:31:32+08:00", "utc": "2038-07-06T04:31:32Z", "ms": 2162003491681.712 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:05 on Mon 5 Jul to 18:47 on Tue 6 Jul.", "fact": "2038-07-05T12:05:10Z → 2038-07-06T10:46:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 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": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22521 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Tuesday 6 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": "2038-07-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Tuesday 6 July. Caturthī runs from 20:05 on Mon 5 Jul to 18:47 on Tue 6 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-07-06", "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/2038/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16648, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-07-06T18:46:53+08:00", "utc": "2038-07-06T10:46:53Z", "ms": 2162026012705.9524 }, "end": { "local": "2038-07-07T17:09:09+08:00", "utc": "2038-07-07T09:09:09Z", "ms": 2162106549158.0933 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-06T18:46:53+08:00", "utc": "2038-07-06T10:46:53Z", "ms": 2162026012705.9524 }, "end": { "local": "2038-07-07T17:09:09+08:00", "utc": "2038-07-07T09:09:09Z", "ms": 2162106549158.0933 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-07-06", "window": { "start": { "local": "2038-07-06T11:43:32+08:00", "utc": "2038-07-06T03:43:32Z", "ms": 2162000611681.712 }, "end": { "local": "2038-07-06T12:31:32+08:00", "utc": "2038-07-06T04:31:32Z", "ms": 2162003491681.712 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-07-07", "window": { "start": { "local": "2038-07-07T11:43:41+08:00", "utc": "2038-07-07T03:43:41Z", "ms": 2162087021352.9224 }, "end": { "local": "2038-07-07T12:31:41+08:00", "utc": "2038-07-07T04:31:41Z", "ms": 2162089901352.9224 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 18:47 on Tue 6 Jul to 17:09 on Wed 7 Jul.", "fact": "2038-07-06T10:46:53Z → 2038-07-07T09:09:09Z" }, { "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": "Pañcamī 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 16648 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Fuzhou, 2038: Wednesday 7 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": "2038-07-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Skanda Pañcamī 2038 falls on Wednesday 7 July. Pañcamī runs from 18:47 on Tue 6 Jul to 17:09 on Wed 7 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2167, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-07-08T15:15:11+08:00", "utc": "2038-07-08T07:15:11Z", "ms": 2162186110654.8271 }, "end": { "local": "2038-07-09T13:08:07+08:00", "utc": "2038-07-09T05:08:07Z", "ms": 2162264886551.9553 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-08T15:15:11+08:00", "utc": "2038-07-08T07:15:11Z", "ms": 2162186110654.8271 }, "end": { "local": "2038-07-09T13:08:07+08:00", "utc": "2038-07-09T05:08:07Z", "ms": 2162264886551.9553 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-07-08", "window": { "start": { "local": "2038-07-08T11:43:51+08:00", "utc": "2038-07-08T03:43:51Z", "ms": 2162173430628.2227 }, "end": { "local": "2038-07-08T12:31:51+08:00", "utc": "2038-07-08T04:31:51Z", "ms": 2162176310628.2227 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-07-09", "window": { "start": { "local": "2038-07-09T11:43:59+08:00", "utc": "2038-07-09T03:43:59Z", "ms": 2162259839487.505 }, "end": { "local": "2038-07-09T12:31:59+08:00", "utc": "2038-07-09T04:31:59Z", "ms": 2162262719487.505 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 15:15 on Thu 8 Jul to 13:08 on Fri 9 Jul.", "fact": "2038-07-08T07:15:11Z → 2038-07-09T05:08:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 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": "Saptamī 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: purvaviddha → only-day · margin 2167 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Fuzhou, 2038: Friday 9 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": "2038-07-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Vivasvat Saptamī 2038 falls on Friday 9 July. Saptamī runs from 15:15 on Thu 8 Jul to 13:08 on Fri 9 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-07-12", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2544, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-07-12T06:01:27+08:00", "utc": "2038-07-11T22:01:27Z", "ms": 2162498487069.711 }, "end": { "local": "2038-07-13T03:36:30+08:00", "utc": "2038-07-12T19:36:30Z", "ms": 2162576190382.3804 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-12T06:01:27+08:00", "utc": "2038-07-11T22:01:27Z", "ms": 2162498487069.711 }, "end": { "local": "2038-07-13T03:36:30+08:00", "utc": "2038-07-12T19:36:30Z", "ms": 2162576190382.3804 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-07-12", "window": { "start": { "local": "2038-07-12T05:19:03+08:00", "utc": "2038-07-11T21:19:03Z", "ms": 2162495943087.9475 }, "end": { "local": "2038-07-12T05:19:03+08:00", "utc": "2038-07-11T21:19:03Z", "ms": 2162495943087.9475 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-07-13", "window": { "start": { "local": "2038-07-13T05:19:30+08:00", "utc": "2038-07-12T21:19:30Z", "ms": 2162582370390.3057 }, "end": { "local": "2038-07-13T05:19:30+08:00", "utc": "2038-07-12T21:19:30Z", "ms": 2162582370390.3057 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:01 on Mon 12 Jul to 03:37 on Tue 13 Jul.", "fact": "2038-07-11T22:01:27Z → 2038-07-12T19:36:30Z" }, { "step": "kaala", "text": "Sunrise is at 05:19 on the 12th and 05:20 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 12th and is not on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither sunrise qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 2544 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Fuzhou, 2038: Monday 12 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Hariśayanī Ekādaśī 2038 falls on Monday 12 July. Ekādaśī runs from 06:01 on Mon 12 Jul to 03:37 on Tue 13 Jul, and is current at sunrise on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-07-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-07-14", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10144, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-07-14T01:17:28+08:00", "utc": "2038-07-13T17:17:28Z", "ms": 2162654248116.1536 }, "end": { "local": "2038-07-14T23:09:25+08:00", "utc": "2038-07-14T15:09:25Z", "ms": 2162732964860.6587 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-14T01:17:28+08:00", "utc": "2038-07-13T17:17:28Z", "ms": 2162654248116.1536 }, "end": { "local": "2038-07-14T23:09:25+08:00", "utc": "2038-07-14T15:09:25Z", "ms": 2162732964860.6587 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-07-13", "window": { "start": { "local": "2038-07-13T18:57:30+08:00", "utc": "2038-07-13T10:57:30Z", "ms": 2162631450464.4126 }, "end": { "local": "2038-07-13T20:20:30+08:00", "utc": "2038-07-13T12:20:30Z", "ms": 2162636430139.9927 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "2038-07-14", "window": { "start": { "local": "2038-07-14T18:57:16+08:00", "utc": "2038-07-14T10:57:16Z", "ms": 2162717835908.6885 }, "end": { "local": "2038-07-14T20:20:21+08:00", "utc": "2038-07-14T12:20:21Z", "ms": 2162722821252.3896 } }, "covered_min": 83, "window_min": 83, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 01:17 on Wed 14 Jul to 23:09 on Wed 14 Jul.", "fact": "2038-07-13T17:17:28Z → 2038-07-14T15:09:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:58–20:21 on the 13th, 18:57–20:20 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 83 minutes on the 13th and 83 of 83 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 10144 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Wednesday 14 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": "2038-07-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Wednesday 14 July. Trayodaśī runs from 01:17 on Wed 14 Jul to 23:09 on Wed 14 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-07-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28986, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-07-15T21:17:49+08:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T19:48:18+08:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-15T21:17:49+08:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T19:48:18+08:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 } }, "kaala": "udaya-3", "days": [ { "local_date": "2038-07-16", "window": { "start": { "local": "2038-07-16T05:20:54+08:00", "utc": "2038-07-15T21:20:54Z", "ms": 2162841654232.6294 }, "end": { "local": "2038-07-16T08:04:04+08:00", "utc": "2038-07-16T00:04:04Z", "ms": 2162851443960.1714 } }, "covered_min": 163, "window_min": 163, "qualifies": true }, { "local_date": "2038-07-17", "window": { "start": { "local": "2038-07-17T05:21:23+08:00", "utc": "2038-07-16T21:21:23Z", "ms": 2162928082747.5186 }, "end": { "local": "2038-07-17T08:04:23+08:00", "utc": "2038-07-17T00:04:23Z", "ms": 2162937863078.189 } }, "covered_min": 0, "window_min": 163, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:18 on Thu 15 Jul to 19:48 on Fri 16 Jul.", "fact": "2038-07-15T13:17:49Z → 2038-07-16T11:48:18Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:21–08:04 on the 16th, 05:21–08:04 on the 17th.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 163 of 163 minutes on the 16th and 0 of 163 on the 17th.", "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 28986 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Fuzhou, 2038: Friday 16 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vyasa-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "udaya-3", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Vyāsa Pūjā 2038 falls on Friday 16 July. Pūrṇimā runs from 21:18 on Thu 15 Jul to 19:48 on Fri 16 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26130, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-07-15T21:17:49+08:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T19:48:18+08:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-15T21:17:49+08:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T19:48:18+08:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-07-15", "window": { "start": { "local": "2038-07-15T11:44:43+08:00", "utc": "2038-07-15T03:44:43Z", "ms": 2162778283014.1875 }, "end": { "local": "2038-07-15T12:32:43+08:00", "utc": "2038-07-15T04:32:43Z", "ms": 2162781163014.1875 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-07-16", "window": { "start": { "local": "2038-07-16T11:44:49+08:00", "utc": "2038-07-16T03:44:49Z", "ms": 2162864688551.4846 }, "end": { "local": "2038-07-16T12:32:49+08:00", "utc": "2038-07-16T04:32:49Z", "ms": 2162867568551.4846 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:18 on Thu 15 Jul to 19:48 on Fri 16 Jul.", "fact": "2038-07-15T13:17:49Z → 2038-07-16T11:48:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 15th, 11:45–12:33 on the 16th.", "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 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26130 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Fuzhou, 2038: Friday 16 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": "2038-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Guru Pūrṇimā 2038 falls on Friday 16 July. Pūrṇimā runs from 21:18 on Thu 15 Jul to 19:48 on Fri 16 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3096, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-07-15T21:17:49+08:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T19:48:18+08:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-15T21:17:49+08:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T19:48:18+08:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 } }, "kaala": "sayahna", "days": [ { "local_date": "2038-07-15", "window": { "start": { "local": "2038-07-15T16:13:41+08:00", "utc": "2038-07-15T08:13:41Z", "ms": 2162794421230.8315 }, "end": { "local": "2038-07-15T18:57:00+08:00", "utc": "2038-07-15T10:57:00Z", "ms": 2162804220041.9277 } }, "covered_min": 0, "window_min": 163, "qualifies": false }, { "local_date": "2038-07-16", "window": { "start": { "local": "2038-07-16T16:13:33+08:00", "utc": "2038-07-16T08:13:33Z", "ms": 2162880813142.7979 }, "end": { "local": "2038-07-16T18:56:43+08:00", "utc": "2038-07-16T10:56:43Z", "ms": 2162890602870.3398 } }, "covered_min": 163, "window_min": 163, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:18 on Thu 15 Jul to 19:48 on Fri 16 Jul.", "fact": "2038-07-15T13:17:49Z → 2038-07-16T11:48:18Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:14–18:57 on the 15th, 16:14–18:57 on the 16th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 163 minutes on the 15th and 163 of 163 on the 16th.", "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 3096 s" }, { "step": "ruling", "text": "Kokilā Vrata, Fuzhou, 2038: Friday 16 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": "2038-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Kokilā Vrata 2038 falls on Friday 16 July. Pūrṇimā runs from 21:18 on Thu 15 Jul to 19:48 on Fri 16 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1902, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-07-15T21:17:49+08:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T19:48:18+08:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2038-07-15T21:17:49+08:00", "utc": "2038-07-15T13:17:49Z", "ms": 2162812668539.5828 }, "end": { "local": "2038-07-16T19:48:18+08:00", "utc": "2038-07-16T11:48:18Z", "ms": 2162893698404.6052 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-07-15", "window": { "start": { "local": "2038-07-15T18:57:00+08:00", "utc": "2038-07-15T10:57:00Z", "ms": 2162804220041.9277 }, "end": { "local": "2038-07-15T20:20:11+08:00", "utc": "2038-07-15T12:20:11Z", "ms": 2162809211267.3547 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "2038-07-16", "window": { "start": { "local": "2038-07-16T18:56:43+08:00", "utc": "2038-07-16T10:56:43Z", "ms": 2162890602870.3398 }, "end": { "local": "2038-07-16T20:20:00+08:00", "utc": "2038-07-16T12:20:00Z", "ms": 2162895600187.297 } }, "covered_min": 52, "window_min": 83, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 21:18 on Thu 15 Jul to 19:48 on Fri 16 Jul.", "fact": "2038-07-15T13:17:49Z → 2038-07-16T11:48:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:57–20:20 on the 15th, 18:57–20:20 on the 16th.", "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 15th and 52 of 83 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1902 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Fuzhou, 2038: Friday 16 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": "2038-07-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Śiva Śayanotsava 2038 falls on Friday 16 July. Pūrṇimā runs from 21:18 on Thu 15 Jul to 19:48 on Fri 16 Jul and covers 52 of 83 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3719, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2038-07-17T18:46:25+08:00", "utc": "2038-07-17T10:46:25Z", "ms": 2162976384801.7295 }, "end": { "local": "2038-07-18T18:16:59+08:00", "utc": "2038-07-18T10:16:59Z", "ms": 2163061019068.0774 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-07-17T18:46:25+08:00", "utc": "2038-07-17T10:46:25Z", "ms": 2162976384801.7295 }, "end": { "local": "2038-07-18T18:16:59+08:00", "utc": "2038-07-18T10:16:59Z", "ms": 2163061019068.0774 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-07-17", "window": { "start": { "local": "2038-07-17T19:48:23+08:00", "utc": "2038-07-17T11:48:23Z", "ms": 2162980103355.2847 }, "end": { "local": "2038-07-17T19:48:23+08:00", "utc": "2038-07-17T11:48:23Z", "ms": 2162980103355.2847 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-07-18", "window": { "start": { "local": "2038-07-18T20:33:49+08:00", "utc": "2038-07-18T12:33:49Z", "ms": 2163069229455.7427 }, "end": { "local": "2038-07-18T20:33:49+08:00", "utc": "2038-07-18T12:33:49Z", "ms": 2163069229455.7427 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 18:46 on Sat 17 Jul to 18:17 on Sun 18 Jul.", "fact": "2038-07-17T10:46:25Z → 2038-07-18T10:16:59Z" }, { "step": "kaala", "text": "Moonrise is at 19:48 on the 17th and 20:34 on the 18th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 17th and is not on the 18th.", "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 3719 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Fuzhou, 2038: Saturday 17 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": "2038-07-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Aśūnya Śayana Vrata (Āṣāḍha) 2038 falls on Saturday 17 July. Dvitīyā runs from 18:46 on Sat 17 Jul to 18:17 on Sun 18 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-07-19", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9772, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-07-19T18:23:33+08:00", "utc": "2038-07-19T10:23:33Z", "ms": 2163147812906.039 }, "end": { "local": "2038-07-20T19:07:29+08:00", "utc": "2038-07-20T11:07:29Z", "ms": 2163236849379.0896 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-07-19T18:23:33+08:00", "utc": "2038-07-19T10:23:33Z", "ms": 2163147812906.039 }, "end": { "local": "2038-07-20T19:07:29+08:00", "utc": "2038-07-20T11:07:29Z", "ms": 2163236849379.0896 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-07-19", "window": { "start": { "local": "2038-07-19T21:14:06+08:00", "utc": "2038-07-19T13:14:06Z", "ms": 2163158045533.9792 }, "end": { "local": "2038-07-19T21:14:06+08:00", "utc": "2038-07-19T13:14:06Z", "ms": 2163158045533.9792 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-07-20", "window": { "start": { "local": "2038-07-20T21:50:21+08:00", "utc": "2038-07-20T13:50:21Z", "ms": 2163246621023.2478 }, "end": { "local": "2038-07-20T21:50:21+08:00", "utc": "2038-07-20T13:50:21Z", "ms": 2163246621023.2478 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:24 on Mon 19 Jul to 19:07 on Tue 20 Jul.", "fact": "2038-07-19T10:23:33Z → 2038-07-20T11:07:29Z" }, { "step": "kaala", "text": "Moonrise is at 21:14 on the 19th and 21:50 on the 20th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 19th and is not 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 9772 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Monday 19 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": "2038-07-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Monday 19 July. Caturthī runs from 18:24 on Mon 19 Jul to 19:07 on Tue 20 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-07-19", "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/2038/ekadashi?on=2038-07-28", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6222, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-07-27T07:10:00+08:00", "utc": "2038-07-26T23:10:00Z", "ms": 2163798599994.155 }, "end": { "local": "2038-07-28T08:42:54+08:00", "utc": "2038-07-28T00:42:54Z", "ms": 2163890573698.6965 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-07-27T07:10:00+08:00", "utc": "2038-07-26T23:10:00Z", "ms": 2163798599994.155 }, "end": { "local": "2038-07-28T08:42:54+08:00", "utc": "2038-07-28T00:42:54Z", "ms": 2163890573698.6965 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-07-27", "window": { "start": { "local": "2038-07-27T05:26:18+08:00", "utc": "2038-07-26T21:26:18Z", "ms": 2163792377979.8948 }, "end": { "local": "2038-07-27T05:26:18+08:00", "utc": "2038-07-26T21:26:18Z", "ms": 2163792377979.8948 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-07-28", "window": { "start": { "local": "2038-07-28T05:26:48+08:00", "utc": "2038-07-27T21:26:48Z", "ms": 2163878808044.1921 }, "end": { "local": "2038-07-28T05:26:48+08:00", "utc": "2038-07-27T21:26:48Z", "ms": 2163878808044.1921 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:10 on Tue 27 Jul to 08:43 on Wed 28 Jul.", "fact": "2038-07-26T23:10:00Z → 2038-07-28T00:42:54Z" }, { "step": "kaala", "text": "Sunrise is at 05:26 on the 27th and 05:27 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 6222 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Fuzhou, 2038: Wednesday 28 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Kāmikā Ekādaśī 2038 falls on Wednesday 28 July. Ekādaśī runs from 07:10 on Tue 27 Jul to 08:43 on Wed 28 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-07-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-07-29", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31922, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-07-29T09:40:16+08:00", "utc": "2038-07-29T01:40:16Z", "ms": 2163980415501.7178 }, "end": { "local": "2038-07-30T09:58:28+08:00", "utc": "2038-07-30T01:58:28Z", "ms": 2164067907707.2173 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-07-29T09:40:16+08:00", "utc": "2038-07-29T01:40:16Z", "ms": 2163980415501.7178 }, "end": { "local": "2038-07-30T09:58:28+08:00", "utc": "2038-07-30T01:58:28Z", "ms": 2164067907707.2173 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-07-29", "window": { "start": { "local": "2038-07-29T18:51:05+08:00", "utc": "2038-07-29T10:51:05Z", "ms": 2164013464586.11 }, "end": { "local": "2038-07-29T20:15:58+08:00", "utc": "2038-07-29T12:15:58Z", "ms": 2164018558400.5288 } }, "covered_min": 85, "window_min": 85, "qualifies": true }, { "local_date": "2038-07-30", "window": { "start": { "local": "2038-07-30T18:50:30+08:00", "utc": "2038-07-30T10:50:30Z", "ms": 2164099830045.8245 }, "end": { "local": "2038-07-30T20:15:32+08:00", "utc": "2038-07-30T12:15:32Z", "ms": 2164104932471.4983 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:40 on Thu 29 Jul to 09:58 on Fri 30 Jul.", "fact": "2038-07-29T01:40:16Z → 2038-07-30T01:58:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:16 on the 29th, 18:51–20:16 on the 30th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 85 of 85 minutes on the 29th and 0 of 85 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31922 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Thursday 29 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-07-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Thursday 29 July. Trayodaśī runs from 09:40 on Thu 29 Jul to 09:58 on Fri 30 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-07-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-07-30", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-07-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32647, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-07-30T09:58:28+08:00", "utc": "2038-07-30T01:58:28Z", "ms": 2164067907707.2173 }, "end": { "local": "2038-07-31T09:37:31+08:00", "utc": "2038-07-31T01:37:31Z", "ms": 2164153051182.732 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-07-30T09:58:28+08:00", "utc": "2038-07-30T01:58:28Z", "ms": 2164067907707.2173 }, "end": { "local": "2038-07-31T09:37:31+08:00", "utc": "2038-07-31T01:37:31Z", "ms": 2164153051182.732 } }, "kaala": "nishita", "days": [ { "local_date": "2038-07-29", "window": { "start": { "local": "2038-07-29T23:45:26+08:00", "utc": "2038-07-29T15:45:26Z", "ms": 2164031126390.1802 }, "end": { "local": "2038-07-30T00:33:26+08:00", "utc": "2038-07-29T16:33:26Z", "ms": 2164034006390.1802 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-07-30", "window": { "start": { "local": "2038-07-30T23:45:24+08:00", "utc": "2038-07-30T15:45:24Z", "ms": 2164117524142.1016 }, "end": { "local": "2038-07-31T00:33:24+08:00", "utc": "2038-07-30T16:33:24Z", "ms": 2164120404142.1016 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:58 on Fri 30 Jul to 09:38 on Sat 31 Jul.", "fact": "2038-07-30T01:58:28Z → 2038-07-31T01:37:31Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:45–00:33 on the 29th, 23:45–00:33 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 48 of 48 on the 30th.", "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 32647 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Friday 30 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": "2038-07-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-07-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Friday 30 July. Caturdaśī runs from 09:58 on Fri 30 Jul to 09:38 on Sat 31 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-07-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23158, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-08-03T05:18:56+08:00", "utc": "2038-08-02T21:18:56Z", "ms": 2164396736298.357 }, "end": { "local": "2038-08-04T03:07:43+08:00", "utc": "2038-08-03T19:07:43Z", "ms": 2164475263444.7092 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-03T05:18:56+08:00", "utc": "2038-08-02T21:18:56Z", "ms": 2164396736298.357 }, "end": { "local": "2038-08-04T03:07:43+08:00", "utc": "2038-08-03T19:07:43Z", "ms": 2164475263444.7092 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-03", "window": { "start": { "local": "2038-08-03T11:44:54+08:00", "utc": "2038-08-03T03:44:54Z", "ms": 2164419894179.7305 }, "end": { "local": "2038-08-03T12:32:54+08:00", "utc": "2038-08-03T04:32:54Z", "ms": 2164422774179.7305 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-04", "window": { "start": { "local": "2038-08-04T11:44:49+08:00", "utc": "2038-08-04T03:44:49Z", "ms": 2164506288923.5134 }, "end": { "local": "2038-08-04T12:32:49+08:00", "utc": "2038-08-04T04:32:49Z", "ms": 2164509168923.5134 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:19 on Tue 3 Aug to 03:08 on Wed 4 Aug.", "fact": "2038-08-02T21:18:56Z → 2038-08-03T19:07:43Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 3rd, 11:45–12:33 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23158 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Fuzhou, 2038: Tuesday 3 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": "2038-08-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Madhusravā Tṛtīyā (Hariyali Teej) 2038 falls on Tuesday 3 August. Tṛtīyā runs from 05:19 on Tue 3 Aug to 03:08 on Wed 4 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vinayaka-chaturthi?on=2038-08-04", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31025, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-08-04T03:07:43+08:00", "utc": "2038-08-03T19:07:43Z", "ms": 2164475263444.7092 }, "end": { "local": "2038-08-05T00:45:15+08:00", "utc": "2038-08-04T16:45:15Z", "ms": 2164553114526.0002 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-04T03:07:43+08:00", "utc": "2038-08-03T19:07:43Z", "ms": 2164475263444.7092 }, "end": { "local": "2038-08-05T00:45:15+08:00", "utc": "2038-08-04T16:45:15Z", "ms": 2164553114526.0002 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-04", "window": { "start": { "local": "2038-08-04T11:44:49+08:00", "utc": "2038-08-04T03:44:49Z", "ms": 2164506288923.5134 }, "end": { "local": "2038-08-04T12:32:49+08:00", "utc": "2038-08-04T04:32:49Z", "ms": 2164509168923.5134 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-05", "window": { "start": { "local": "2038-08-05T11:44:43+08:00", "utc": "2038-08-05T03:44:43Z", "ms": 2164592683053.7412 }, "end": { "local": "2038-08-05T12:32:43+08:00", "utc": "2038-08-05T04:32:43Z", "ms": 2164595563053.7412 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:08 on Wed 4 Aug to 00:45 on Thu 5 Aug.", "fact": "2038-08-03T19:07:43Z → 2038-08-04T16:45:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 4th, 11:45–12:33 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 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31025 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Wednesday 4 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": "2038-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Wednesday 4 August. Caturthī runs from 03:08 on Wed 4 Aug to 00:45 on Thu 5 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-08-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35105, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-08-05T00:45:15+08:00", "utc": "2038-08-04T16:45:15Z", "ms": 2164553114526.0002 }, "end": { "local": "2038-08-05T22:17:49+08:00", "utc": "2038-08-05T14:17:49Z", "ms": 2164630668546.6096 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-05T00:45:15+08:00", "utc": "2038-08-04T16:45:15Z", "ms": 2164553114526.0002 }, "end": { "local": "2038-08-05T22:17:49+08:00", "utc": "2038-08-05T14:17:49Z", "ms": 2164630668546.6096 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-04", "window": { "start": { "local": "2038-08-04T11:44:49+08:00", "utc": "2038-08-04T03:44:49Z", "ms": 2164506288923.5134 }, "end": { "local": "2038-08-04T12:32:49+08:00", "utc": "2038-08-04T04:32:49Z", "ms": 2164509168923.5134 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-05", "window": { "start": { "local": "2038-08-05T11:44:43+08:00", "utc": "2038-08-05T03:44:43Z", "ms": 2164592683053.7412 }, "end": { "local": "2038-08-05T12:32:43+08:00", "utc": "2038-08-05T04:32:43Z", "ms": 2164595563053.7412 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 00:45 on Thu 5 Aug to 22:18 on Thu 5 Aug.", "fact": "2038-08-04T16:45:15Z → 2038-08-05T14:17:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 4th, 11:45–12:33 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 0 of 48 minutes on the 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 35105 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Fuzhou, 2038: Thursday 5 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": "2038-08-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Nāga Pañcamī 2038 falls on Thursday 5 August. Pañcamī runs from 00:45 on Thu 5 Aug to 22:18 on Thu 5 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-08-11", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15632, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-08-10T11:26:57+08:00", "utc": "2038-08-10T03:26:57Z", "ms": 2165023617118.444 }, "end": { "local": "2038-08-11T09:54:14+08:00", "utc": "2038-08-11T01:54:14Z", "ms": 2165104454053.407 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-10T11:26:57+08:00", "utc": "2038-08-10T03:26:57Z", "ms": 2165023617118.444 }, "end": { "local": "2038-08-11T09:54:14+08:00", "utc": "2038-08-11T01:54:14Z", "ms": 2165104454053.407 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-08-10", "window": { "start": { "local": "2038-08-10T05:33:13+08:00", "utc": "2038-08-09T21:33:13Z", "ms": 2165002393048.8882 }, "end": { "local": "2038-08-10T05:33:13+08:00", "utc": "2038-08-09T21:33:13Z", "ms": 2165002393048.8882 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-08-11", "window": { "start": { "local": "2038-08-11T05:33:42+08:00", "utc": "2038-08-10T21:33:42Z", "ms": 2165088821655.394 }, "end": { "local": "2038-08-11T05:33:42+08:00", "utc": "2038-08-10T21:33:42Z", "ms": 2165088821655.394 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:27 on Tue 10 Aug to 09:54 on Wed 11 Aug.", "fact": "2038-08-10T03:26:57Z → 2038-08-11T01:54:14Z" }, { "step": "kaala", "text": "Sunrise is at 05:33 on the 10th and 05:34 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 15632 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Fuzhou, 2038: Wednesday 11 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": "2038-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Putradā Ekādaśī 2038 falls on Wednesday 11 August. Ekādaśī runs from 11:27 on Tue 10 Aug to 09:54 on Wed 11 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-08-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6581, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-08-11T09:54:14+08:00", "utc": "2038-08-11T01:54:14Z", "ms": 2165104454053.407 }, "end": { "local": "2038-08-12T08:38:33+08:00", "utc": "2038-08-12T00:38:33Z", "ms": 2165186312527.9587 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-11T09:54:14+08:00", "utc": "2038-08-11T01:54:14Z", "ms": 2165104454053.407 }, "end": { "local": "2038-08-12T08:38:33+08:00", "utc": "2038-08-12T00:38:33Z", "ms": 2165186312527.9587 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-11", "window": { "start": { "local": "2038-08-11T11:43:55+08:00", "utc": "2038-08-11T03:43:55Z", "ms": 2165111035076.5156 }, "end": { "local": "2038-08-11T12:31:55+08:00", "utc": "2038-08-11T04:31:55Z", "ms": 2165113915076.5156 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-12", "window": { "start": { "local": "2038-08-12T11:43:45+08:00", "utc": "2038-08-12T03:43:45Z", "ms": 2165197425012.0745 }, "end": { "local": "2038-08-12T12:31:45+08:00", "utc": "2038-08-12T04:31:45Z", "ms": 2165200305012.0745 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 09:54 on Wed 11 Aug to 08:39 on Thu 12 Aug.", "fact": "2038-08-11T01:54:14Z → 2038-08-12T00:38:33Z" }, { "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": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 6581 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Fuzhou, 2038: Wednesday 11 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": "2038-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Dāmodara Dvādaśī 2038 falls on Wednesday 11 August. Dvādaśī runs from 09:54 on Wed 11 Aug to 08:39 on Thu 12 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/pradosha-vrata?on=2038-08-12", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36167, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-08-12T08:38:33+08:00", "utc": "2038-08-12T00:38:33Z", "ms": 2165186312527.9587 }, "end": { "local": "2038-08-13T07:41:59+08:00", "utc": "2038-08-12T23:41:59Z", "ms": 2165269319182.497 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-12T08:38:33+08:00", "utc": "2038-08-12T00:38:33Z", "ms": 2165186312527.9587 }, "end": { "local": "2038-08-13T07:41:59+08:00", "utc": "2038-08-12T23:41:59Z", "ms": 2165269319182.497 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-08-12", "window": { "start": { "local": "2038-08-12T18:41:20+08:00", "utc": "2038-08-12T10:41:20Z", "ms": 2165222479953.8901 }, "end": { "local": "2038-08-12T20:08:26+08:00", "utc": "2038-08-12T12:08:26Z", "ms": 2165227706398.8892 } }, "covered_min": 87, "window_min": 87, "qualifies": true }, { "local_date": "2038-08-13", "window": { "start": { "local": "2038-08-13T18:40:30+08:00", "utc": "2038-08-13T10:40:30Z", "ms": 2165308830473.592 }, "end": { "local": "2038-08-13T20:07:47+08:00", "utc": "2038-08-13T12:07:47Z", "ms": 2165314067252.8677 } }, "covered_min": 0, "window_min": 87, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:39 on Thu 12 Aug to 07:42 on Fri 13 Aug.", "fact": "2038-08-12T00:38:33Z → 2038-08-12T23:41:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:41–20:08 on the 12th, 18:41–20:08 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 87 of 87 minutes on the 12th and 0 of 87 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 36167 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Thursday 12 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Thursday 12 August. Trayodaśī runs from 08:39 on Thu 12 Aug to 07:42 on Fri 13 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-08-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-14", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 4878, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-08-14T07:07:08+08:00", "utc": "2038-08-13T23:07:08Z", "ms": 2165353627679.6553 }, "end": { "local": "2038-08-15T06:56:52+08:00", "utc": "2038-08-14T22:56:52Z", "ms": 2165439412421.196 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "2038-08-14T18:58:44+08:00", "utc": "2038-08-14T10:58:44Z", "ms": 2165396324305.8105 }, "end": { "local": "2038-08-15T06:56:52+08:00", "utc": "2038-08-14T22:56:52Z", "ms": 2165439412421.196 } }, "kaala": "day", "days": [ { "local_date": "2038-08-14", "window": { "start": { "local": "2038-08-14T05:35:06+08:00", "utc": "2038-08-13T21:35:06Z", "ms": 2165348106318.1594 }, "end": { "local": "2038-08-15T05:35:34+08:00", "utc": "2038-08-14T21:35:34Z", "ms": 2165434534151.2146 } }, "covered_min": 637, "window_min": 1440, "qualifies": true }, { "local_date": "2038-08-15", "window": { "start": { "local": "2038-08-15T05:35:34+08:00", "utc": "2038-08-14T21:35:34Z", "ms": 2165434534151.2146 }, "end": { "local": "2038-08-16T05:36:02+08:00", "utc": "2038-08-15T21:36:02Z", "ms": 2165520961792.11 } }, "covered_min": 81, "window_min": 1440, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:07 on Sat 14 Aug to 06:57 on Sun 15 Aug. Its second half begins at 18:59 on Sat 14 Aug.", "fact": "2038-08-13T23:07:08Z → 2038-08-14T22:56:52Z · second half from 2038-08-14T10:58:44Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:35 on the 14th, and from 05:36 on the 15th.", "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 637 of 1440 minutes on the 14th and 81 of 1440 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 4878 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Fuzhou, 2038: Saturday 14 August.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "raksha-bandhana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana" } ], "kaala": "day", "priority": "unstated", "when_absent": "unstated", "half": "second" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-14", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-14", "confidence": "boundary" } ], "quote": "In Fuzhou, Rakṣā Bandhana (Rakhi) 2038 falls on Saturday 14 August. The second half of Pūrṇimā runs from 18:59 on Sat 14 Aug to 06:57 on Sun 15 Aug and falls on two days: 637 minutes of it on the 14th, 81 on the 15th; the rule does not say which to take, and the day that holds more of it is ruled: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16576, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-08-14T07:07:08+08:00", "utc": "2038-08-13T23:07:08Z", "ms": 2165353627679.6553 }, "end": { "local": "2038-08-15T06:56:52+08:00", "utc": "2038-08-14T22:56:52Z", "ms": 2165439412421.196 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2038-08-14T07:07:08+08:00", "utc": "2038-08-13T23:07:08Z", "ms": 2165353627679.6553 }, "end": { "local": "2038-08-15T06:56:52+08:00", "utc": "2038-08-14T22:56:52Z", "ms": 2165439412421.196 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-14", "window": { "start": { "local": "2038-08-14T11:43:23+08:00", "utc": "2038-08-14T03:43:23Z", "ms": 2165370203199.98 }, "end": { "local": "2038-08-14T12:31:23+08:00", "utc": "2038-08-14T04:31:23Z", "ms": 2165373083199.98 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-15", "window": { "start": { "local": "2038-08-15T11:43:11+08:00", "utc": "2038-08-15T03:43:11Z", "ms": 2165456591477.4707 }, "end": { "local": "2038-08-15T12:31:11+08:00", "utc": "2038-08-15T04:31:11Z", "ms": 2165459471477.4707 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:07 on Sat 14 Aug to 06:57 on Sun 15 Aug.", "fact": "2038-08-13T23:07:08Z → 2038-08-14T22:56:52Z" }, { "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": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 14th and 0 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16576 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Fuzhou, 2038: Saturday 14 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": "2038-08-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Ṛṣi Tarpaṇa 2038 falls on Saturday 14 August. Pūrṇimā runs from 07:07 on Sat 14 Aug to 06:57 on Sun 15 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 43474, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2038-08-16T07:14:06+08:00", "utc": "2038-08-15T23:14:06Z", "ms": 2165526846225.2295 }, "end": { "local": "2038-08-17T08:01:02+08:00", "utc": "2038-08-17T00:01:02Z", "ms": 2165616061688.3225 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-16T07:14:06+08:00", "utc": "2038-08-15T23:14:06Z", "ms": 2165526846225.2295 }, "end": { "local": "2038-08-17T08:01:02+08:00", "utc": "2038-08-17T00:01:02Z", "ms": 2165616061688.3225 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-08-15", "window": { "start": { "local": "2038-08-15T19:09:32+08:00", "utc": "2038-08-15T11:09:32Z", "ms": 2165483372478.3047 }, "end": { "local": "2038-08-15T19:09:32+08:00", "utc": "2038-08-15T11:09:32Z", "ms": 2165483372478.3047 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-08-16", "window": { "start": { "local": "2038-08-16T19:47:18+08:00", "utc": "2038-08-16T11:47:18Z", "ms": 2165572037601.9626 }, "end": { "local": "2038-08-16T19:47:18+08:00", "utc": "2038-08-16T11:47:18Z", "ms": 2165572037601.9626 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 07:14 on Mon 16 Aug to 08:01 on Tue 17 Aug.", "fact": "2038-08-15T23:14:06Z → 2038-08-17T00:01:02Z" }, { "step": "kaala", "text": "Moonrise is at 19:10 on the 15th and 19:47 on the 16th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 15th and is on the 16th.", "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 43474 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Fuzhou, 2038: Monday 16 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": "2038-08-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Aśūnya Śayana Vrata 2038 falls on Monday 16 August. Dvitīyā runs from 07:14 on Mon 16 Aug to 08:01 on Tue 17 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8654, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-08-17T08:01:02+08:00", "utc": "2038-08-17T00:01:02Z", "ms": 2165616061688.3225 }, "end": { "local": "2038-08-18T09:18:19+08:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-17T08:01:02+08:00", "utc": "2038-08-17T00:01:02Z", "ms": 2165616061688.3225 }, "end": { "local": "2038-08-18T09:18:19+08:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-17", "window": { "start": { "local": "2038-08-17T11:42:46+08:00", "utc": "2038-08-17T03:42:46Z", "ms": 2165629366466.3203 }, "end": { "local": "2038-08-17T12:30:46+08:00", "utc": "2038-08-17T04:30:46Z", "ms": 2165632246466.3203 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-18", "window": { "start": { "local": "2038-08-18T11:42:33+08:00", "utc": "2038-08-18T03:42:33Z", "ms": 2165715753205.2004 }, "end": { "local": "2038-08-18T12:30:33+08:00", "utc": "2038-08-18T04:30:33Z", "ms": 2165718633205.2004 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 08:01 on Tue 17 Aug to 09:18 on Wed 18 Aug.", "fact": "2038-08-17T00:01:02Z → 2038-08-18T01:18:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 17th, 11:43–12:31 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 8654 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Fuzhou, 2038: Tuesday 17 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": "2038-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Kajjalī Tṛtīyā (Kajari Teej) 2038 falls on Tuesday 17 August. Tṛtīyā runs from 08:01 on Tue 17 Aug to 09:18 on Wed 18 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17734, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-08-18T09:18:19+08:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 }, "end": { "local": "2038-08-19T11:04:07+08:00", "utc": "2038-08-19T03:04:07Z", "ms": 2165799847467.6523 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-18T09:18:19+08:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 }, "end": { "local": "2038-08-19T11:04:07+08:00", "utc": "2038-08-19T03:04:07Z", "ms": 2165799847467.6523 } }, "kaala": "sayahna", "days": [ { "local_date": "2038-08-18", "window": { "start": { "local": "2038-08-18T16:00:19+08:00", "utc": "2038-08-18T08:00:19Z", "ms": 2165731219224.2917 }, "end": { "local": "2038-08-18T18:36:10+08:00", "utc": "2038-08-18T10:36:10Z", "ms": 2165740569903.686 } }, "covered_min": 156, "window_min": 156, "qualifies": true }, { "local_date": "2038-08-19", "window": { "start": { "local": "2038-08-19T15:59:41+08:00", "utc": "2038-08-19T07:59:41Z", "ms": 2165817580982.6326 }, "end": { "local": "2038-08-19T18:35:15+08:00", "utc": "2038-08-19T10:35:15Z", "ms": 2165826915331.8047 } }, "covered_min": 0, "window_min": 156, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:18 on Wed 18 Aug to 11:04 on Thu 19 Aug.", "fact": "2038-08-18T01:18:19Z → 2038-08-19T03:04:07Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:00–18:36 on the 18th, 16:00–18:35 on the 19th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 156 of 156 minutes on the 18th and 0 of 156 on the 19th.", "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 17734 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Fuzhou, 2038: Wednesday 18 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": "2038-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Bahulā Caturthī 2038 falls on Wednesday 18 August. Caturthī runs from 09:18 on Wed 18 Aug to 11:04 on Thu 19 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-08-18", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37328, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-08-18T09:18:19+08:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 }, "end": { "local": "2038-08-19T11:04:07+08:00", "utc": "2038-08-19T03:04:07Z", "ms": 2165799847467.6523 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-18T09:18:19+08:00", "utc": "2038-08-18T01:18:19Z", "ms": 2165707098959.8442 }, "end": { "local": "2038-08-19T11:04:07+08:00", "utc": "2038-08-19T03:04:07Z", "ms": 2165799847467.6523 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-08-18", "window": { "start": { "local": "2038-08-18T20:54:32+08:00", "utc": "2038-08-18T12:54:32Z", "ms": 2165748871940.349 }, "end": { "local": "2038-08-18T20:54:32+08:00", "utc": "2038-08-18T12:54:32Z", "ms": 2165748871940.349 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-08-19", "window": { "start": { "local": "2038-08-19T21:26:15+08:00", "utc": "2038-08-19T13:26:15Z", "ms": 2165837175173.1912 }, "end": { "local": "2038-08-19T21:26:15+08:00", "utc": "2038-08-19T13:26:15Z", "ms": 2165837175173.1912 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:18 on Wed 18 Aug to 11:04 on Thu 19 Aug.", "fact": "2038-08-18T01:18:19Z → 2038-08-19T03:04:07Z" }, { "step": "kaala", "text": "Moonrise is at 20:55 on the 18th and 21:26 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 37328 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Wednesday 18 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": "2038-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Wednesday 18 August. Caturthī runs from 09:18 on Wed 18 Aug to 11:04 on Thu 19 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-08-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2591, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-08-20T13:13:16+08:00", "utc": "2038-08-20T05:13:16Z", "ms": 2165893995849.4126 }, "end": { "local": "2038-08-21T15:36:50+08:00", "utc": "2038-08-21T07:36:50Z", "ms": 2165989010481.4648 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-20T13:13:16+08:00", "utc": "2038-08-20T05:13:16Z", "ms": 2165893995849.4126 }, "end": { "local": "2038-08-21T15:36:50+08:00", "utc": "2038-08-21T07:36:50Z", "ms": 2165989010481.4648 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-20", "window": { "start": { "local": "2038-08-20T11:42:05+08:00", "utc": "2038-08-20T03:42:05Z", "ms": 2165888525241.2144 }, "end": { "local": "2038-08-20T12:30:05+08:00", "utc": "2038-08-20T04:30:05Z", "ms": 2165891405241.2144 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-21", "window": { "start": { "local": "2038-08-21T11:41:51+08:00", "utc": "2038-08-21T03:41:51Z", "ms": 2165974910566.0684 }, "end": { "local": "2038-08-21T12:29:51+08:00", "utc": "2038-08-21T04:29:51Z", "ms": 2165977790566.0684 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 13:13 on Fri 20 Aug to 15:37 on Sat 21 Aug.", "fact": "2038-08-20T05:13:16Z → 2038-08-21T07:36:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 20th, 11:42–12:30 on the 21st.", "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 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2591 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Fuzhou, 2038: Saturday 21 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": "2038-08-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Hala Ṣaṣṭhī 2038 falls on Saturday 21 August. Ṣaṣṭhī runs from 13:13 on Fri 20 Aug to 15:37 on Sat 21 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12280, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-08-22T18:02:43+08:00", "utc": "2038-08-22T10:02:43Z", "ms": 2166084162762.5461 }, "end": { "local": "2038-08-23T20:16:53+08:00", "utc": "2038-08-23T12:16:53Z", "ms": 2166178612820.3215 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-22T18:02:43+08:00", "utc": "2038-08-22T10:02:43Z", "ms": 2166084162762.5461 }, "end": { "local": "2038-08-23T20:16:53+08:00", "utc": "2038-08-23T12:16:53Z", "ms": 2166178612820.3215 } }, "kaala": "nishita", "days": [ { "local_date": "2038-08-22", "window": { "start": { "local": "2038-08-22T23:41:49+08:00", "utc": "2038-08-22T15:41:49Z", "ms": 2166104508633.8118 }, "end": { "local": "2038-08-23T00:29:49+08:00", "utc": "2038-08-22T16:29:49Z", "ms": 2166107388633.8118 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-23", "window": { "start": { "local": "2038-08-23T23:41:33+08:00", "utc": "2038-08-23T15:41:33Z", "ms": 2166190893001.057 }, "end": { "local": "2038-08-24T00:29:33+08:00", "utc": "2038-08-23T16:29:33Z", "ms": 2166193773001.057 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 18:03 on Sun 22 Aug to 20:17 on Mon 23 Aug.", "fact": "2038-08-22T10:02:43Z → 2038-08-23T12:16:53Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:42–00:30 on the 22nd, 23:42–00:30 on the 23rd.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during niśītha. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "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 12280 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Fuzhou, 2038: Sunday 22 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": "2038-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Janmāṣṭamī 2038 falls on Sunday 22 August. Aṣṭamī runs from 18:03 on Sun 22 Aug to 20:17 on Mon 23 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11220, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-08-21T15:36:50+08:00", "utc": "2038-08-21T07:36:50Z", "ms": 2165989010481.4648 }, "end": { "local": "2038-08-22T18:02:43+08:00", "utc": "2038-08-22T10:02:43Z", "ms": 2166084162762.5461 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-21T15:36:50+08:00", "utc": "2038-08-21T07:36:50Z", "ms": 2165989010481.4648 }, "end": { "local": "2038-08-22T18:02:43+08:00", "utc": "2038-08-22T10:02:43Z", "ms": 2166084162762.5461 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-21", "window": { "start": { "local": "2038-08-21T11:41:51+08:00", "utc": "2038-08-21T03:41:51Z", "ms": 2165974910566.0684 }, "end": { "local": "2038-08-21T12:29:51+08:00", "utc": "2038-08-21T04:29:51Z", "ms": 2165977790566.0684 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-22", "window": { "start": { "local": "2038-08-22T11:41:35+08:00", "utc": "2038-08-22T03:41:35Z", "ms": 2166061295447.2568 }, "end": { "local": "2038-08-22T12:29:35+08:00", "utc": "2038-08-22T04:29:35Z", "ms": 2166064175447.2568 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 15:37 on Sat 21 Aug to 18:03 on Sun 22 Aug.", "fact": "2038-08-21T07:36:50Z → 2038-08-22T10:02:43Z" }, { "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": "Saptamī 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11220 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Fuzhou, 2038: Sunday 22 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": "2038-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Śītalā Saptamī 2038 falls on Sunday 22 August. Saptamī runs from 15:37 on Sat 21 Aug to 18:03 on Sun 22 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-08-26", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21364, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-08-25T23:17:22+08:00", "utc": "2038-08-25T15:17:22Z", "ms": 2166362242280.7 }, "end": { "local": "2038-08-26T23:44:50+08:00", "utc": "2038-08-26T15:44:50Z", "ms": 2166450289508.6516 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-25T23:17:22+08:00", "utc": "2038-08-25T15:17:22Z", "ms": 2166362242280.7 }, "end": { "local": "2038-08-26T23:44:50+08:00", "utc": "2038-08-26T15:44:50Z", "ms": 2166450289508.6516 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-08-26", "window": { "start": { "local": "2038-08-26T05:40:28+08:00", "utc": "2038-08-25T21:40:28Z", "ms": 2166385228245.6074 }, "end": { "local": "2038-08-26T05:40:28+08:00", "utc": "2038-08-25T21:40:28Z", "ms": 2166385228245.6074 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-08-27", "window": { "start": { "local": "2038-08-27T05:40:54+08:00", "utc": "2038-08-26T21:40:54Z", "ms": 2166471653966.6284 }, "end": { "local": "2038-08-27T05:40:54+08:00", "utc": "2038-08-26T21:40:54Z", "ms": 2166471653966.6284 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:17 on Wed 25 Aug to 23:45 on Thu 26 Aug.", "fact": "2038-08-25T15:17:22Z → 2038-08-26T15:44:50Z" }, { "step": "kaala", "text": "Sunrise is at 05:40 on the 26th and 05:41 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 26th and is not on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21364 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Fuzhou, 2038: Thursday 26 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Ajā Ekādaśī 2038 falls on Thursday 26 August. Ekādaśī runs from 23:17 on Wed 25 Aug to 23:45 on Thu 26 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-08-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-08-28", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8570, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-08-27T23:25:02+08:00", "utc": "2038-08-27T15:25:02Z", "ms": 2166535501996.3083 }, "end": { "local": "2038-08-28T22:19:25+08:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-27T23:25:02+08:00", "utc": "2038-08-27T15:25:02Z", "ms": 2166535501996.3083 }, "end": { "local": "2038-08-28T22:19:25+08:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-08-27", "window": { "start": { "local": "2038-08-27T18:27:33+08:00", "utc": "2038-08-27T10:27:33Z", "ms": 2166517653387.45 }, "end": { "local": "2038-08-27T19:57:24+08:00", "utc": "2038-08-27T11:57:24Z", "ms": 2166523043540.1235 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "2038-08-28", "window": { "start": { "local": "2038-08-28T18:26:33+08:00", "utc": "2038-08-28T10:26:33Z", "ms": 2166603992829.422 }, "end": { "local": "2038-08-28T19:56:34+08:00", "utc": "2038-08-28T11:56:34Z", "ms": 2166609394444.9353 } }, "covered_min": 90, "window_min": 90, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:25 on Fri 27 Aug to 22:19 on Sat 28 Aug.", "fact": "2038-08-27T15:25:02Z → 2038-08-28T14:19:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:28–19:57 on the 27th, 18:27–19:57 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 90 minutes on the 27th and 90 of 90 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8570 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Saturday 28 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": "2038-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Saturday 28 August. Trayodaśī runs from 23:25 on Fri 27 Aug to 22:19 on Sat 28 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-08-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-08-28", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4844, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-08-28T22:19:25+08:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 }, "end": { "local": "2038-08-29T20:32:53+08:00", "utc": "2038-08-29T12:32:53Z", "ms": 2166697972856.1445 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-28T22:19:25+08:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 }, "end": { "local": "2038-08-29T20:32:53+08:00", "utc": "2038-08-29T12:32:53Z", "ms": 2166697972856.1445 } }, "kaala": "nishita", "days": [ { "local_date": "2038-08-28", "window": { "start": { "local": "2038-08-28T23:40:09+08:00", "utc": "2038-08-28T15:40:09Z", "ms": 2166622808887.5967 }, "end": { "local": "2038-08-29T00:28:09+08:00", "utc": "2038-08-28T16:28:09Z", "ms": 2166625688887.5967 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-08-29", "window": { "start": { "local": "2038-08-29T23:39:51+08:00", "utc": "2038-08-29T15:39:51Z", "ms": 2166709190965.1143 }, "end": { "local": "2038-08-30T00:27:51+08:00", "utc": "2038-08-29T16:27:51Z", "ms": 2166712070965.1143 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:19 on Sat 28 Aug to 20:33 on Sun 29 Aug.", "fact": "2038-08-28T14:19:25Z → 2038-08-29T12:32:53Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:40–00:28 on the 28th, 23:40–00:28 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 48 of 48 minutes on the 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 4844 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Saturday 28 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": "2038-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Saturday 28 August. Caturdaśī runs from 22:19 on Sat 28 Aug to 20:33 on Sun 29 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-08-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2228, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-08-28T22:19:25+08:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 }, "end": { "local": "2038-08-29T20:32:53+08:00", "utc": "2038-08-29T12:32:53Z", "ms": 2166697972856.1445 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-28T22:19:25+08:00", "utc": "2038-08-28T14:19:25Z", "ms": 2166617964810.0684 }, "end": { "local": "2038-08-29T20:32:53+08:00", "utc": "2038-08-29T12:32:53Z", "ms": 2166697972856.1445 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-08-28", "window": { "start": { "local": "2038-08-28T18:26:33+08:00", "utc": "2038-08-28T10:26:33Z", "ms": 2166603992829.422 }, "end": { "local": "2038-08-28T19:56:34+08:00", "utc": "2038-08-28T11:56:34Z", "ms": 2166609394444.9353 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "2038-08-29", "window": { "start": { "local": "2038-08-29T18:25:32+08:00", "utc": "2038-08-29T10:25:32Z", "ms": 2166690331721.5498 }, "end": { "local": "2038-08-29T19:55:45+08:00", "utc": "2038-08-29T11:55:45Z", "ms": 2166695744853.167 } }, "covered_min": 90, "window_min": 90, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:19 on Sat 28 Aug to 20:33 on Sun 29 Aug.", "fact": "2038-08-28T14:19:25Z → 2038-08-29T12:32:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:27–19:57 on the 28th, 18:26–19:56 on the 29th.", "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 90 minutes on the 28th and 90 of 90 on the 29th.", "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 2228 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Fuzhou, 2038: Sunday 29 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": "2038-08-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Aghora Caturdaśī 2038 falls on Sunday 29 August. Caturdaśī runs from 22:19 on Sat 28 Aug to 20:33 on Sun 29 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10866, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-08-30T18:12:50+08:00", "utc": "2038-08-30T10:12:50Z", "ms": 2166775969558.97 }, "end": { "local": "2038-08-31T15:28:08+08:00", "utc": "2038-08-31T07:28:08Z", "ms": 2166852487959.9263 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-08-30T18:12:50+08:00", "utc": "2038-08-30T10:12:50Z", "ms": 2166775969558.97 }, "end": { "local": "2038-08-31T15:28:08+08:00", "utc": "2038-08-31T07:28:08Z", "ms": 2166852487959.9263 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-08-30", "window": { "start": { "local": "2038-08-30T11:39:20+08:00", "utc": "2038-08-30T03:39:20Z", "ms": 2166752360146.8823 }, "end": { "local": "2038-08-30T12:27:20+08:00", "utc": "2038-08-30T04:27:20Z", "ms": 2166755240146.8823 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-08-31", "window": { "start": { "local": "2038-08-31T11:39:02+08:00", "utc": "2038-08-31T03:39:02Z", "ms": 2166838741632.1162 }, "end": { "local": "2038-08-31T12:27:02+08:00", "utc": "2038-08-31T04:27:02Z", "ms": 2166841621632.1162 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 18:13 on Mon 30 Aug to 15:28 on Tue 31 Aug.", "fact": "2038-08-30T10:12:50Z → 2038-08-31T07:28:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 30th, 11:39–12:27 on the 31st.", "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 30th and 48 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 10866 s" }, { "step": "ruling", "text": "Rudra Vrata, Fuzhou, 2038: Tuesday 31 August.", "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": "2038-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-08-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Rudra Vrata 2038 falls on Tuesday 31 August. Pratipadā runs from 18:13 on Mon 30 Aug to 15:28 on Tue 31 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8125, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-09-02T09:22:59+08:00", "utc": "2038-09-02T01:22:59Z", "ms": 2167003379131.758 }, "end": { "local": "2038-09-03T06:21:00+08:00", "utc": "2038-09-02T22:21:00Z", "ms": 2167078860211.925 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-02T09:22:59+08:00", "utc": "2038-09-02T01:22:59Z", "ms": 2167003379131.758 }, "end": { "local": "2038-09-03T06:21:00+08:00", "utc": "2038-09-02T22:21:00Z", "ms": 2167078860211.925 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-02", "window": { "start": { "local": "2038-09-02T11:38:24+08:00", "utc": "2038-09-02T03:38:24Z", "ms": 2167011503665.3608 }, "end": { "local": "2038-09-02T12:26:24+08:00", "utc": "2038-09-02T04:26:24Z", "ms": 2167014383665.3608 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-09-03", "window": { "start": { "local": "2038-09-03T11:38:04+08:00", "utc": "2038-09-03T03:38:04Z", "ms": 2167097884238.3862 }, "end": { "local": "2038-09-03T12:26:04+08:00", "utc": "2038-09-03T04:26:04Z", "ms": 2167100764238.3862 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:23 on Thu 2 Sep to 06:21 on Fri 3 Sep.", "fact": "2038-09-02T01:22:59Z → 2038-09-02T22:21:00Z" }, { "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": "Caturthī 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 8125 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Fuzhou, 2038: Thursday 2 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": "2038-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaṇeśa Caturthī 2038 falls on Thursday 2 September. Caturthī runs from 09:23 on Thu 2 Sep to 06:21 on Fri 3 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-02", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 98, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2038-09-01T12:28:21+08:00", "utc": "2038-09-01T04:28:21Z", "ms": 2166928100662.1934 }, "end": { "local": "2038-09-02T09:22:59+08:00", "utc": "2038-09-02T01:22:59Z", "ms": 2167003379131.758 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-01T12:28:21+08:00", "utc": "2038-09-01T04:28:21Z", "ms": 2166928100662.1934 }, "end": { "local": "2038-09-02T09:22:59+08:00", "utc": "2038-09-02T01:22:59Z", "ms": 2167003379131.758 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-01", "window": { "start": { "local": "2038-09-01T11:38:43+08:00", "utc": "2038-09-01T03:38:43Z", "ms": 2166925122800.924 }, "end": { "local": "2038-09-01T12:26:43+08:00", "utc": "2038-09-01T04:26:43Z", "ms": 2166928002800.924 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-02", "window": { "start": { "local": "2038-09-02T11:38:24+08:00", "utc": "2038-09-02T03:38:24Z", "ms": 2167011503665.3608 }, "end": { "local": "2038-09-02T12:26:24+08:00", "utc": "2038-09-02T04:26:24Z", "ms": 2167014383665.3608 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 12:28 on Wed 1 Sep to 09:23 on Thu 2 Sep.", "fact": "2038-09-01T04:28:21Z → 2038-09-02T01:22:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 1st, 11:38–12:26 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 98 s < 300 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Fuzhou, 2038: Thursday 2 September.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "haritalika-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Haritalika vrata (paraviddha), Gauri vrata (Orissa), Gauri (Mysore)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-02", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Haritālikā Vrata (Hartalika Teej) 2038 falls on Thursday 2 September. Tṛtīyā runs from 12:28 on Wed 1 Sep to 09:23 on Thu 2 Sep, and reaches madhyāhna on neither day. It is 1 min 38 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19024, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-09-03T06:21:00+08:00", "utc": "2038-09-02T22:21:00Z", "ms": 2167078860211.925 }, "end": { "local": "2038-09-04T03:30:18+08:00", "utc": "2038-09-03T19:30:18Z", "ms": 2167155017683.0723 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-03T06:21:00+08:00", "utc": "2038-09-02T22:21:00Z", "ms": 2167078860211.925 }, "end": { "local": "2038-09-04T03:30:18+08:00", "utc": "2038-09-03T19:30:18Z", "ms": 2167155017683.0723 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-03", "window": { "start": { "local": "2038-09-03T11:38:04+08:00", "utc": "2038-09-03T03:38:04Z", "ms": 2167097884238.3862 }, "end": { "local": "2038-09-03T12:26:04+08:00", "utc": "2038-09-03T04:26:04Z", "ms": 2167100764238.3862 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-09-04", "window": { "start": { "local": "2038-09-04T11:37:45+08:00", "utc": "2038-09-04T03:37:45Z", "ms": 2167184264534.1763 }, "end": { "local": "2038-09-04T12:25:45+08:00", "utc": "2038-09-04T04:25:45Z", "ms": 2167187144534.1763 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 06:21 on Fri 3 Sep to 03:30 on Sat 4 Sep.", "fact": "2038-09-02T22:21:00Z → 2038-09-03T19:30:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 3rd, 11:38–12:26 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 19024 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Fuzhou, 2038: Friday 3 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": "2038-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Ṛṣi Pañcamī 2038 falls on Friday 3 September. Pañcamī runs from 06:21 on Fri 3 Sep to 03:30 on Sat 4 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29247, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-09-04T03:30:18+08:00", "utc": "2038-09-03T19:30:18Z", "ms": 2167155017683.0723 }, "end": { "local": "2038-09-05T00:57:18+08:00", "utc": "2038-09-04T16:57:18Z", "ms": 2167232238358.8743 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-04T03:30:18+08:00", "utc": "2038-09-03T19:30:18Z", "ms": 2167155017683.0723 }, "end": { "local": "2038-09-05T00:57:18+08:00", "utc": "2038-09-04T16:57:18Z", "ms": 2167232238358.8743 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-04", "window": { "start": { "local": "2038-09-04T11:37:45+08:00", "utc": "2038-09-04T03:37:45Z", "ms": 2167184264534.1763 }, "end": { "local": "2038-09-04T12:25:45+08:00", "utc": "2038-09-04T04:25:45Z", "ms": 2167187144534.1763 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-09-05", "window": { "start": { "local": "2038-09-05T11:37:25+08:00", "utc": "2038-09-05T03:37:25Z", "ms": 2167270644568.269 }, "end": { "local": "2038-09-05T12:25:25+08:00", "utc": "2038-09-05T04:25:25Z", "ms": 2167273524568.269 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 03:30 on Sat 4 Sep to 00:57 on Sun 5 Sep.", "fact": "2038-09-03T19:30:18Z → 2038-09-04T16:57:18Z" }, { "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": "Ṣaṣṭhī 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 29247 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Fuzhou, 2038: Saturday 4 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": "2038-09-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Sūrya Ṣaṣṭhī (Bhādrapada) 2038 falls on Saturday 4 September. Ṣaṣṭhī runs from 03:30 on Sat 4 Sep to 00:57 on Sun 5 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37280, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-09-05T00:57:18+08:00", "utc": "2038-09-04T16:57:18Z", "ms": 2167232238358.8743 }, "end": { "local": "2038-09-05T22:46:45+08:00", "utc": "2038-09-05T14:46:45Z", "ms": 2167310804593.8596 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-05T00:57:18+08:00", "utc": "2038-09-04T16:57:18Z", "ms": 2167232238358.8743 }, "end": { "local": "2038-09-05T22:46:45+08:00", "utc": "2038-09-05T14:46:45Z", "ms": 2167310804593.8596 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-04", "window": { "start": { "local": "2038-09-04T11:37:45+08:00", "utc": "2038-09-04T03:37:45Z", "ms": 2167184264534.1763 }, "end": { "local": "2038-09-04T12:25:45+08:00", "utc": "2038-09-04T04:25:45Z", "ms": 2167187144534.1763 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-05", "window": { "start": { "local": "2038-09-05T11:37:25+08:00", "utc": "2038-09-05T03:37:25Z", "ms": 2167270644568.269 }, "end": { "local": "2038-09-05T12:25:25+08:00", "utc": "2038-09-05T04:25:25Z", "ms": 2167273524568.269 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 00:57 on Sun 5 Sep to 22:47 on Sun 5 Sep.", "fact": "2038-09-04T16:57:18Z → 2038-09-05T14:46:45Z" }, { "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": "Saptamī 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 37280 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Fuzhou, 2038: Sunday 5 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": "2038-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Muktābharaṇa Vrata 2038 falls on Sunday 5 September. Saptamī runs from 00:57 on Sun 5 Sep to 22:47 on Sun 5 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30983, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-09-05T22:46:45+08:00", "utc": "2038-09-05T14:46:45Z", "ms": 2167310804593.8596 }, "end": { "local": "2038-09-06T21:01:27+08:00", "utc": "2038-09-06T13:01:27Z", "ms": 2167390887030.8076 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-05T22:46:45+08:00", "utc": "2038-09-05T14:46:45Z", "ms": 2167310804593.8596 }, "end": { "local": "2038-09-06T21:01:27+08:00", "utc": "2038-09-06T13:01:27Z", "ms": 2167390887030.8076 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-05", "window": { "start": { "local": "2038-09-05T11:37:25+08:00", "utc": "2038-09-05T03:37:25Z", "ms": 2167270644568.269 }, "end": { "local": "2038-09-05T12:25:25+08:00", "utc": "2038-09-05T04:25:25Z", "ms": 2167273524568.269 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-06", "window": { "start": { "local": "2038-09-06T11:37:04+08:00", "utc": "2038-09-06T03:37:04Z", "ms": 2167357024357.6147 }, "end": { "local": "2038-09-06T12:25:04+08:00", "utc": "2038-09-06T04:25:04Z", "ms": 2167359904357.6147 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 22:47 on Sun 5 Sep to 21:01 on Mon 6 Sep.", "fact": "2038-09-05T14:46:45Z → 2038-09-06T13:01:27Z" }, { "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": "Aṣṭamī 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: unstated → only-day · margin 30983 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Fuzhou, 2038: Monday 6 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": "2038-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Rādhāṣṭamī 2038 falls on Monday 6 September. Aṣṭamī runs from 22:47 on Sun 5 Sep to 21:01 on Mon 6 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-09-09", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39393, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-09-08T18:49:42+08:00", "utc": "2038-09-08T10:49:42Z", "ms": 2167555782200.443 }, "end": { "local": "2038-09-09T18:21:56+08:00", "utc": "2038-09-09T10:21:56Z", "ms": 2167640515748.415 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-08T18:49:42+08:00", "utc": "2038-09-08T10:49:42Z", "ms": 2167555782200.443 }, "end": { "local": "2038-09-09T18:21:56+08:00", "utc": "2038-09-09T10:21:56Z", "ms": 2167640515748.415 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-09-09", "window": { "start": { "local": "2038-09-09T05:46:15+08:00", "utc": "2038-09-08T21:46:15Z", "ms": 2167595175396.6323 }, "end": { "local": "2038-09-09T05:46:15+08:00", "utc": "2038-09-08T21:46:15Z", "ms": 2167595175396.6323 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-09-10", "window": { "start": { "local": "2038-09-10T05:46:39+08:00", "utc": "2038-09-09T21:46:39Z", "ms": 2167681599338.7827 }, "end": { "local": "2038-09-10T05:46:39+08:00", "utc": "2038-09-09T21:46:39Z", "ms": 2167681599338.7827 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:50 on Wed 8 Sep to 18:22 on Thu 9 Sep.", "fact": "2038-09-08T10:49:42Z → 2038-09-09T10:21:56Z" }, { "step": "kaala", "text": "Sunrise is at 05:46 on the 9th and 05:47 on the 10th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 9th and is not on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 39393 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Fuzhou, 2038: Thursday 9 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Parivartanī Ekādaśī 2038 falls on Thursday 9 September. Ekādaśī runs from 18:50 on Wed 8 Sep to 18:22 on Thu 9 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-09-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21260, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-09-09T18:21:56+08:00", "utc": "2038-09-09T10:21:56Z", "ms": 2167640515748.415 }, "end": { "local": "2038-09-10T18:18:01+08:00", "utc": "2038-09-10T10:18:01Z", "ms": 2167726680958.8765 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-09T18:21:56+08:00", "utc": "2038-09-09T10:21:56Z", "ms": 2167640515748.415 }, "end": { "local": "2038-09-10T18:18:01+08:00", "utc": "2038-09-10T10:18:01Z", "ms": 2167726680958.8765 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-09", "window": { "start": { "local": "2038-09-09T11:36:02+08:00", "utc": "2038-09-09T03:36:02Z", "ms": 2167616162445.588 }, "end": { "local": "2038-09-09T12:24:02+08:00", "utc": "2038-09-09T04:24:02Z", "ms": 2167619042445.588 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-10", "window": { "start": { "local": "2038-09-10T11:35:41+08:00", "utc": "2038-09-10T03:35:41Z", "ms": 2167702541449.5073 }, "end": { "local": "2038-09-10T12:23:41+08:00", "utc": "2038-09-10T04:23:41Z", "ms": 2167705421449.5073 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 18:22 on Thu 9 Sep to 18:18 on Fri 10 Sep.", "fact": "2038-09-09T10:21:56Z → 2038-09-10T10:18:01Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 9th, 11:36–12:24 on the 10th.", "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 9th and 48 of 48 on the 10th.", "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 21260 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Fuzhou, 2038: Friday 10 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": "2038-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-10", "confidence": "determinate" } ], "quote": "In Fuzhou, Vāmana Jayantī 2038 falls on Friday 10 September. Dvādaśī runs from 18:22 on Thu 9 Sep to 18:18 on Fri 10 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/pradosha-vrata?on=2038-09-10", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-10", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 317, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-09-10T18:18:01+08:00", "utc": "2038-09-10T10:18:01Z", "ms": 2167726680958.8765 }, "end": { "local": "2038-09-11T18:37:10+08:00", "utc": "2038-09-11T10:37:10Z", "ms": 2167814229940.7285 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-10T18:18:01+08:00", "utc": "2038-09-10T10:18:01Z", "ms": 2167726680958.8765 }, "end": { "local": "2038-09-11T18:37:10+08:00", "utc": "2038-09-11T10:37:10Z", "ms": 2167814229940.7285 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-09-10", "window": { "start": { "local": "2038-09-10T18:12:44+08:00", "utc": "2038-09-10T10:12:44Z", "ms": 2167726363560.2322 }, "end": { "local": "2038-09-10T19:45:18+08:00", "utc": "2038-09-10T11:45:18Z", "ms": 2167731918182.1917 } }, "covered_min": 87, "window_min": 93, "qualifies": true }, { "local_date": "2038-09-11", "window": { "start": { "local": "2038-09-11T18:11:37+08:00", "utc": "2038-09-11T10:11:37Z", "ms": 2167812697395.641 }, "end": { "local": "2038-09-11T19:44:24+08:00", "utc": "2038-09-11T11:44:24Z", "ms": 2167818264018.9646 } }, "covered_min": 26, "window_min": 93, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:18 on Fri 10 Sep to 18:37 on Sat 11 Sep.", "fact": "2038-09-10T10:18:01Z → 2038-09-11T10:37:10Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:13–19:45 on the 10th, 18:12–19:44 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 87 of 93 minutes on the 10th and 26 of 93 on the 11th.", "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 317 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Friday 10 September.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-10", "confidence": "boundary" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Friday 10 September. Trayodaśī runs from 18:18 on Fri 10 Sep to 18:37 on Sat 11 Sep and covers 87 of 93 minutes of pradoṣa that evening. It also reaches the next evening for 26 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/2038/pradosha-vrata?on=2038-09-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37272, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-09-11T18:37:10+08:00", "utc": "2038-09-11T10:37:10Z", "ms": 2167814229940.7285 }, "end": { "local": "2038-09-12T19:19:13+08:00", "utc": "2038-09-12T11:19:13Z", "ms": 2167903152658.603 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2038-09-11T18:37:10+08:00", "utc": "2038-09-11T10:37:10Z", "ms": 2167814229940.7285 }, "end": { "local": "2038-09-12T19:19:13+08:00", "utc": "2038-09-12T11:19:13Z", "ms": 2167903152658.603 } }, "kaala": "udaya-3", "days": [ { "local_date": "2038-09-11", "window": { "start": { "local": "2038-09-11T05:47:03+08:00", "utc": "2038-09-10T21:47:03Z", "ms": 2167768023224.9285 }, "end": { "local": "2038-09-11T08:15:58+08:00", "utc": "2038-09-11T00:15:58Z", "ms": 2167776958059.071 } }, "covered_min": 0, "window_min": 149, "qualifies": false }, { "local_date": "2038-09-12", "window": { "start": { "local": "2038-09-12T05:47:27+08:00", "utc": "2038-09-11T21:47:27Z", "ms": 2167854447070.5671 }, "end": { "local": "2038-09-12T08:16:04+08:00", "utc": "2038-09-12T00:16:04Z", "ms": 2167863363862.17 } }, "covered_min": 149, "window_min": 149, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:37 on Sat 11 Sep to 19:19 on Sun 12 Sep.", "fact": "2038-09-11T10:37:10Z → 2038-09-12T11:19:13Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:47–08:16 on the 11th, 05:47–08:16 on the 12th.", "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 149 minutes on the 11th and 149 of 149 on the 12th.", "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 37272 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Fuzhou, 2038: Sunday 12 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": "2038-09-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Ananta Caturdaśī 2038 falls on Sunday 12 September. Caturdaśī runs from 18:37 on Sat 11 Sep to 19:19 on Sun 12 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-09-17", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21559, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-09-17T01:56:57+08:00", "utc": "2038-09-16T17:56:57Z", "ms": 2168272616986.0671 }, "end": { "local": "2038-09-18T04:24:00+08:00", "utc": "2038-09-17T20:24:00Z", "ms": 2168367839783.6855 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-17T01:56:57+08:00", "utc": "2038-09-16T17:56:57Z", "ms": 2168272616986.0671 }, "end": { "local": "2038-09-18T04:24:00+08:00", "utc": "2038-09-17T20:24:00Z", "ms": 2168367839783.6855 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-09-16", "window": { "start": { "local": "2038-09-16T19:57:38+08:00", "utc": "2038-09-16T11:57:38Z", "ms": 2168251057904.8394 }, "end": { "local": "2038-09-16T19:57:38+08:00", "utc": "2038-09-16T11:57:38Z", "ms": 2168251057904.8394 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-09-17", "window": { "start": { "local": "2038-09-17T20:30:04+08:00", "utc": "2038-09-17T12:30:04Z", "ms": 2168339404094.17 }, "end": { "local": "2038-09-17T20:30:04+08:00", "utc": "2038-09-17T12:30:04Z", "ms": 2168339404094.17 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:57 on Fri 17 Sep to 04:24 on Sat 18 Sep.", "fact": "2038-09-16T17:56:57Z → 2038-09-17T20:24:00Z" }, { "step": "kaala", "text": "Moonrise is at 19:58 on the 16th and 20:30 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 16th and is on the 17th.", "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 21559 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Friday 17 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": "2038-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Friday 17 September. Caturthī runs from 01:57 on Fri 17 Sep to 04:24 on Sat 18 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-09-17", "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/2038/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35584, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-09-19T06:57:20+08:00", "utc": "2038-09-18T22:57:20Z", "ms": 2168463440229.0037 }, "end": { "local": "2038-09-20T09:25:12+08:00", "utc": "2038-09-20T01:25:12Z", "ms": 2168558712415.3604 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-19T06:57:20+08:00", "utc": "2038-09-18T22:57:20Z", "ms": 2168463440229.0037 }, "end": { "local": "2038-09-20T09:25:12+08:00", "utc": "2038-09-20T01:25:12Z", "ms": 2168558712415.3604 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-09-18", "window": { "start": { "local": "2038-09-18T21:04:17+08:00", "utc": "2038-09-18T13:04:17Z", "ms": 2168427856558.2395 }, "end": { "local": "2038-09-18T21:04:17+08:00", "utc": "2038-09-18T13:04:17Z", "ms": 2168427856558.2395 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-09-19", "window": { "start": { "local": "2038-09-19T21:41:14+08:00", "utc": "2038-09-19T13:41:14Z", "ms": 2168516474262.8806 }, "end": { "local": "2038-09-19T21:41:14+08:00", "utc": "2038-09-19T13:41:14Z", "ms": 2168516474262.8806 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 06:57 on Sun 19 Sep to 09:25 on Mon 20 Sep.", "fact": "2038-09-18T22:57:20Z → 2038-09-20T01:25:12Z" }, { "step": "kaala", "text": "Moonrise is at 21:04 on the 18th and 21:41 on the 19th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 18th and is on the 19th.", "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 35584 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Fuzhou, 2038: Sunday 19 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": "2038-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Candra Ṣaṣṭhī 2038 falls on Sunday 19 September. Ṣaṣṭhī runs from 06:57 on Sun 19 Sep to 09:25 on Mon 20 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17331, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-09-21T11:34:03+08:00", "utc": "2038-09-21T03:34:03Z", "ms": 2168652842874.5251 }, "end": { "local": "2038-09-22T13:10:32+08:00", "utc": "2038-09-22T05:10:32Z", "ms": 2168745031821.4312 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-21T11:34:03+08:00", "utc": "2038-09-21T03:34:03Z", "ms": 2168652842874.5251 }, "end": { "local": "2038-09-22T13:10:32+08:00", "utc": "2038-09-22T05:10:32Z", "ms": 2168745031821.4312 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-09-21", "window": { "start": { "local": "2038-09-21T18:00:29+08:00", "utc": "2038-09-21T10:00:29Z", "ms": 2168676029348.2646 }, "end": { "local": "2038-09-21T19:35:17+08:00", "utc": "2038-09-21T11:35:17Z", "ms": 2168681717040.213 } }, "covered_min": 95, "window_min": 95, "qualifies": true }, { "local_date": "2038-09-22", "window": { "start": { "local": "2038-09-22T17:59:23+08:00", "utc": "2038-09-22T09:59:23Z", "ms": 2168762362522.213 }, "end": { "local": "2038-09-22T19:34:22+08:00", "utc": "2038-09-22T11:34:22Z", "ms": 2168768062391.9622 } }, "covered_min": 0, "window_min": 95, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:34 on Tue 21 Sep to 13:11 on Wed 22 Sep.", "fact": "2038-09-21T03:34:03Z → 2038-09-22T05:10:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:00–19:35 on the 21st, 17:59–19:34 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī 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. 103" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17331 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Fuzhou, 2038: Tuesday 21 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "jitashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Jitāṣṭamī (Jitiya) 2038 falls on Tuesday 21 September. Aṣṭamī runs from 11:34 on Tue 21 Sep to 13:11 on Wed 22 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38797, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-09-21T11:34:03+08:00", "utc": "2038-09-21T03:34:03Z", "ms": 2168652842874.5251 }, "end": { "local": "2038-09-22T13:10:32+08:00", "utc": "2038-09-22T05:10:32Z", "ms": 2168745031821.4312 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-21T11:34:03+08:00", "utc": "2038-09-21T03:34:03Z", "ms": 2168652842874.5251 }, "end": { "local": "2038-09-22T13:10:32+08:00", "utc": "2038-09-22T05:10:32Z", "ms": 2168745031821.4312 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-09-21", "window": { "start": { "local": "2038-09-21T23:07:03+08:00", "utc": "2038-09-21T15:07:03Z", "ms": 2168694423012.6487 }, "end": { "local": "2038-09-21T23:07:03+08:00", "utc": "2038-09-21T15:07:03Z", "ms": 2168694423012.6487 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-09-22", "window": { "start": { "local": "2038-09-22T23:57:08+08:00", "utc": "2038-09-22T15:57:08Z", "ms": 2168783828386.5955 }, "end": { "local": "2038-09-22T23:57:08+08:00", "utc": "2038-09-22T15:57:08Z", "ms": 2168783828386.5955 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:34 on Tue 21 Sep to 13:11 on Wed 22 Sep.", "fact": "2038-09-21T03:34:03Z → 2038-09-22T05:10:32Z" }, { "step": "kaala", "text": "Moonrise is at 23:07 on the 21st and 23:57 on the 22nd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī 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. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 38797 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Fuzhou, 2038: Tuesday 21 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": "2038-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahālakṣmī Vrata Samāpana 2038 falls on Tuesday 21 September. Aṣṭamī runs from 11:34 on Tue 21 Sep to 13:11 on Wed 22 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-09-25", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26705, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-09-24T14:06:51+08:00", "utc": "2038-09-24T06:06:51Z", "ms": 2168921210713.277 }, "end": { "local": "2038-09-25T13:17:47+08:00", "utc": "2038-09-25T05:17:47Z", "ms": 2169004666527.4807 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-24T14:06:51+08:00", "utc": "2038-09-24T06:06:51Z", "ms": 2168921210713.277 }, "end": { "local": "2038-09-25T13:17:47+08:00", "utc": "2038-09-25T05:17:47Z", "ms": 2169004666527.4807 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-09-24", "window": { "start": { "local": "2038-09-24T05:52:16+08:00", "utc": "2038-09-23T21:52:16Z", "ms": 2168891536206.0798 }, "end": { "local": "2038-09-24T05:52:16+08:00", "utc": "2038-09-23T21:52:16Z", "ms": 2168891536206.0798 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-09-25", "window": { "start": { "local": "2038-09-25T05:52:41+08:00", "utc": "2038-09-24T21:52:41Z", "ms": 2168977961033.1855 }, "end": { "local": "2038-09-25T05:52:41+08:00", "utc": "2038-09-24T21:52:41Z", "ms": 2168977961033.1855 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:07 on Fri 24 Sep to 13:18 on Sat 25 Sep.", "fact": "2038-09-24T06:06:51Z → 2038-09-25T05:17:47Z" }, { "step": "kaala", "text": "Sunrise is at 05:52 on the 24th and 05:53 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 26705 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Fuzhou, 2038: Saturday 25 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": "2038-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Indirā Ekādaśī 2038 falls on Saturday 25 September. Ekādaśī runs from 14:07 on Fri 24 Sep to 13:18 on Sat 25 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-09-25", "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/2038/pradosha-vrata?on=2038-09-26", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22557, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-09-26T11:39:00+08:00", "utc": "2038-09-26T03:39:00Z", "ms": 2169085139667.5393 }, "end": { "local": "2038-09-27T09:16:38+08:00", "utc": "2038-09-27T01:16:38Z", "ms": 2169162998003.666 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-26T11:39:00+08:00", "utc": "2038-09-26T03:39:00Z", "ms": 2169085139667.5393 }, "end": { "local": "2038-09-27T09:16:38+08:00", "utc": "2038-09-27T01:16:38Z", "ms": 2169162998003.666 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-09-26", "window": { "start": { "local": "2038-09-26T17:54:57+08:00", "utc": "2038-09-26T09:54:57Z", "ms": 2169107696534.922 }, "end": { "local": "2038-09-26T19:30:45+08:00", "utc": "2038-09-26T11:30:45Z", "ms": 2169113445161.4216 } }, "covered_min": 96, "window_min": 96, "qualifies": true }, { "local_date": "2038-09-27", "window": { "start": { "local": "2038-09-27T17:53:50+08:00", "utc": "2038-09-27T09:53:50Z", "ms": 2169194030494.5186 }, "end": { "local": "2038-09-27T19:29:51+08:00", "utc": "2038-09-27T11:29:51Z", "ms": 2169199791312.3066 } }, "covered_min": 0, "window_min": 96, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:39 on Sun 26 Sep to 09:17 on Mon 27 Sep.", "fact": "2038-09-26T03:39:00Z → 2038-09-27T01:16:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:55–19:31 on the 26th, 17:54–19:30 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 96 of 96 minutes on the 26th and 0 of 96 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 22557 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Sunday 26 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Sunday 26 September. Trayodaśī runs from 11:39 on Sun 26 Sep to 09:17 on Mon 27 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-09-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-09-27", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21691, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-09-27T09:16:38+08:00", "utc": "2038-09-27T01:16:38Z", "ms": 2169162998003.666 }, "end": { "local": "2038-09-28T06:19:25+08:00", "utc": "2038-09-27T22:19:25Z", "ms": 2169238765034.9995 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-27T09:16:38+08:00", "utc": "2038-09-27T01:16:38Z", "ms": 2169162998003.666 }, "end": { "local": "2038-09-28T06:19:25+08:00", "utc": "2038-09-27T22:19:25Z", "ms": 2169238765034.9995 } }, "kaala": "nishita", "days": [ { "local_date": "2038-09-26", "window": { "start": { "local": "2038-09-26T23:30:14+08:00", "utc": "2038-09-26T15:30:14Z", "ms": 2169127813884.2957 }, "end": { "local": "2038-09-27T00:18:14+08:00", "utc": "2038-09-26T16:18:14Z", "ms": 2169130693884.2957 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-09-27", "window": { "start": { "local": "2038-09-27T23:29:54+08:00", "utc": "2038-09-27T15:29:54Z", "ms": 2169214193561.2236 }, "end": { "local": "2038-09-28T00:17:54+08:00", "utc": "2038-09-27T16:17:54Z", "ms": 2169217073561.2236 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:17 on Mon 27 Sep to 06:19 on Tue 28 Sep.", "fact": "2038-09-27T01:16:38Z → 2038-09-27T22:19:25Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:30–00:18 on the 26th, 23:30–00:18 on the 27th.", "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 26th and 48 of 48 on the 27th.", "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 21691 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Monday 27 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Monday 27 September. Caturdaśī runs from 09:17 on Mon 27 Sep to 06:19 on Tue 28 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-09-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24348, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2038-09-28T06:19:25+08:00", "utc": "2038-09-27T22:19:25Z", "ms": 2169238765034.9995 }, "end": { "local": "2038-09-29T02:57:39+08:00", "utc": "2038-09-28T18:57:39Z", "ms": 2169313058847.9702 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-28T06:19:25+08:00", "utc": "2038-09-27T22:19:25Z", "ms": 2169238765034.9995 }, "end": { "local": "2038-09-29T02:57:39+08:00", "utc": "2038-09-28T18:57:39Z", "ms": 2169313058847.9702 } }, "kaala": "aparahna", "days": [ { "local_date": "2038-09-28", "window": { "start": { "local": "2038-09-28T13:05:13+08:00", "utc": "2038-09-28T05:05:13Z", "ms": 2169263113462.2 }, "end": { "local": "2038-09-28T15:28:59+08:00", "utc": "2038-09-28T07:28:59Z", "ms": 2169271739073.6238 } }, "covered_min": 144, "window_min": 144, "qualifies": true }, { "local_date": "2038-09-29", "window": { "start": { "local": "2038-09-29T13:04:44+08:00", "utc": "2038-09-29T05:04:44Z", "ms": 2169349484369.8828 }, "end": { "local": "2038-09-29T15:28:12+08:00", "utc": "2038-09-29T07:28:12Z", "ms": 2169358091749.693 } }, "covered_min": 0, "window_min": 143, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 06:19 on Tue 28 Sep to 02:58 on Wed 29 Sep.", "fact": "2038-09-27T22:19:25Z → 2038-09-28T18:57:39Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:05–15:29 on the 28th, 13:05–15:28 on the 29th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 144 of 144 minutes on the 28th and 0 of 143 on the 29th.", "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 24348 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Fuzhou, 2038: Tuesday 28 September.", "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": "2038-09-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahālaya Amāvāsyā 2038 falls on Tuesday 28 September. Amāvasyā runs from 06:19 on Tue 28 Sep to 02:58 on Wed 29 Sep and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30682, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-09-29T02:57:39+08:00", "utc": "2038-09-28T18:57:39Z", "ms": 2169313058847.9702 }, "end": { "local": "2038-09-29T23:22:22+08:00", "utc": "2038-09-29T15:22:22Z", "ms": 2169386541601.289 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-09-29T02:57:39+08:00", "utc": "2038-09-28T18:57:39Z", "ms": 2169313058847.9702 }, "end": { "local": "2038-09-29T23:22:22+08:00", "utc": "2038-09-29T15:22:22Z", "ms": 2169386541601.289 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-09-29", "window": { "start": { "local": "2038-09-29T11:29:01+08:00", "utc": "2038-09-29T03:29:01Z", "ms": 2169343740679.9775 }, "end": { "local": "2038-09-29T12:17:01+08:00", "utc": "2038-09-29T04:17:01Z", "ms": 2169346620679.9775 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-09-30", "window": { "start": { "local": "2038-09-30T11:28:41+08:00", "utc": "2038-09-30T03:28:41Z", "ms": 2169430120950.0833 }, "end": { "local": "2038-09-30T12:16:41+08:00", "utc": "2038-09-30T04:16:41Z", "ms": 2169433000950.0833 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:58 on Wed 29 Sep to 23:22 on Wed 29 Sep.", "fact": "2038-09-28T18:57:39Z → 2038-09-29T15:22:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:29–12:17 on the 29th, 11:29–12:17 on the 30th.", "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 29th and 0 of 48 on the 30th.", "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 30682 s" }, { "step": "ruling", "text": "Navarātrārambha, Fuzhou, 2038: Wednesday 29 September.", "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": "2038-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-09-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Navarātrārambha (Navratri) 2038 falls on Wednesday 29 September. Pratipadā runs from 02:58 on Wed 29 Sep to 23:22 on Wed 29 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vinayaka-chaturthi?on=2038-10-02", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2848, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-10-01T16:15:10+08:00", "utc": "2038-10-01T08:15:10Z", "ms": 2169533709626.0986 }, "end": { "local": "2038-10-02T13:03:30+08:00", "utc": "2038-10-02T05:03:30Z", "ms": 2169608610008.1697 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-01T16:15:10+08:00", "utc": "2038-10-01T08:15:10Z", "ms": 2169533709626.0986 }, "end": { "local": "2038-10-02T13:03:30+08:00", "utc": "2038-10-02T05:03:30Z", "ms": 2169608610008.1697 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-01", "window": { "start": { "local": "2038-10-01T11:28:21+08:00", "utc": "2038-10-01T03:28:21Z", "ms": 2169516501482.3188 }, "end": { "local": "2038-10-01T12:16:21+08:00", "utc": "2038-10-01T04:16:21Z", "ms": 2169519381482.3188 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-02", "window": { "start": { "local": "2038-10-02T11:28:02+08:00", "utc": "2038-10-02T03:28:02Z", "ms": 2169602882292.6558 }, "end": { "local": "2038-10-02T12:16:02+08:00", "utc": "2038-10-02T04:16:02Z", "ms": 2169605762292.6558 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 16:15 on Fri 1 Oct to 13:04 on Sat 2 Oct.", "fact": "2038-10-01T08:15:10Z → 2038-10-02T05:03:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 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": "Caturthī 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. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2848 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Saturday 2 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": "2038-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-02", "confidence": "boundary" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Saturday 2 October. Caturthī runs from 16:15 on Fri 1 Oct to 13:04 on Sat 2 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-10-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-04", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1035, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-10-04T08:04:22+08:00", "utc": "2038-10-04T00:04:22Z", "ms": 2169763461839.322 }, "end": { "local": "2038-10-05T06:26:58+08:00", "utc": "2038-10-04T22:26:58Z", "ms": 2169844018453.0059 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-04T08:04:22+08:00", "utc": "2038-10-04T00:04:22Z", "ms": 2169763461839.322 }, "end": { "local": "2038-10-05T06:26:58+08:00", "utc": "2038-10-04T22:26:58Z", "ms": 2169844018453.0059 } }, "kaala": "udaya-1", "days": [ { "local_date": "2038-10-04", "window": { "start": { "local": "2038-10-04T05:56:34+08:00", "utc": "2038-10-03T21:56:34Z", "ms": 2169755793655.317 }, "end": { "local": "2038-10-04T06:43:52+08:00", "utc": "2038-10-03T22:43:52Z", "ms": 2169758632476.7217 } }, "covered_min": 0, "window_min": 47, "qualifies": false }, { "local_date": "2038-10-05", "window": { "start": { "local": "2038-10-05T05:57:01+08:00", "utc": "2038-10-04T21:57:01Z", "ms": 2169842220685.2742 }, "end": { "local": "2038-10-05T06:44:13+08:00", "utc": "2038-10-04T22:44:13Z", "ms": 2169845053469.2944 } }, "covered_min": 30, "window_min": 47, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 08:04 on Mon 4 Oct to 06:27 on Tue 5 Oct.", "fact": "2038-10-04T00:04:22Z → 2038-10-04T22:26:58Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:57–06:44 on the 4th, 05:57–06:44 on the 5th.", "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 4th and 30 of 47 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither morning qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 1035 s" }, { "step": "ruling", "text": "Durgā Saptamī, Fuzhou, 2038: Monday 4 October.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "2038-10-04", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-04", "confidence": "boundary" } ], "quote": "In Fuzhou, Durgā Saptamī 2038 falls on Monday 4 October. Saptamī runs from 08:04 on Mon 4 Oct to 06:27 on Tue 5 Oct, and reaches the first muhūrta after sunrise on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18008, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-10-05T06:26:58+08:00", "utc": "2038-10-04T22:26:58Z", "ms": 2169844018453.0059 }, "end": { "local": "2038-10-06T05:27:03+08:00", "utc": "2038-10-05T21:27:03Z", "ms": 2169926822733.1282 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-05T06:26:58+08:00", "utc": "2038-10-04T22:26:58Z", "ms": 2169844018453.0059 }, "end": { "local": "2038-10-06T05:27:03+08:00", "utc": "2038-10-05T21:27:03Z", "ms": 2169926822733.1282 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-05", "window": { "start": { "local": "2038-10-05T11:27:07+08:00", "utc": "2038-10-05T03:27:07Z", "ms": 2169862026565.4268 }, "end": { "local": "2038-10-05T12:15:07+08:00", "utc": "2038-10-05T04:15:07Z", "ms": 2169864906565.4268 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-10-06", "window": { "start": { "local": "2038-10-06T11:26:49+08:00", "utc": "2038-10-06T03:26:49Z", "ms": 2169948408666.4639 }, "end": { "local": "2038-10-06T12:14:49+08:00", "utc": "2038-10-06T04:14:49Z", "ms": 2169951288666.4639 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 06:27 on Tue 5 Oct to 05:27 on Wed 6 Oct.", "fact": "2038-10-04T22:26:58Z → 2038-10-05T21:27:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 5th, 11:27–12:15 on the 6th.", "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 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 18008 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Fuzhou, 2038: Tuesday 5 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": "2038-10-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahāṣṭamī (Durga Ashtami) 2038 falls on Tuesday 5 October. Aṣṭamī runs from 06:27 on Tue 5 Oct to 05:27 on Wed 6 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21586, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2038-10-06T05:27:03+08:00", "utc": "2038-10-05T21:27:03Z", "ms": 2169926822733.1282 }, "end": { "local": "2038-10-07T05:03:37+08:00", "utc": "2038-10-06T21:03:37Z", "ms": 2170011817111.3381 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-06T05:27:03+08:00", "utc": "2038-10-05T21:27:03Z", "ms": 2169926822733.1282 }, "end": { "local": "2038-10-07T05:03:37+08:00", "utc": "2038-10-06T21:03:37Z", "ms": 2170011817111.3381 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-06", "window": { "start": { "local": "2038-10-06T11:26:49+08:00", "utc": "2038-10-06T03:26:49Z", "ms": 2169948408666.4639 }, "end": { "local": "2038-10-06T12:14:49+08:00", "utc": "2038-10-06T04:14:49Z", "ms": 2169951288666.4639 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-10-07", "window": { "start": { "local": "2038-10-07T11:26:31+08:00", "utc": "2038-10-07T03:26:31Z", "ms": 2170034791139.608 }, "end": { "local": "2038-10-07T12:14:31+08:00", "utc": "2038-10-07T04:14:31Z", "ms": 2170037671139.608 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 05:27 on Wed 6 Oct to 05:04 on Thu 7 Oct.", "fact": "2038-10-05T21:27:03Z → 2038-10-06T21:03:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 6th, 11:27–12:15 on the 7th.", "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 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 21586 s" }, { "step": "ruling", "text": "Mahānavamī, Fuzhou, 2038: Wednesday 6 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": "2038-10-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahānavamī 2038 falls on Wednesday 6 October. Navamī runs from 05:27 on Wed 6 Oct to 05:04 on Thu 7 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2669, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "2038-10-07T05:03:37+08:00", "utc": "2038-10-06T21:03:37Z", "ms": 2170011817111.3381 }, "end": { "local": "2038-10-08T05:13:55+08:00", "utc": "2038-10-07T21:13:55Z", "ms": 2170098834666.9163 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "2038-10-07T10:00:19+08:00", "utc": "2038-10-07T02:00:19Z", "ms": 2170029619140.0254 }, "end": { "local": "2038-10-08T05:13:55+08:00", "utc": "2038-10-07T21:13:55Z", "ms": 2170098834666.9163 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "2038-10-07T10:00:19+08:00", "utc": "2038-10-07T02:00:19Z", "ms": 2170029619140.0254 }, "end": { "local": "2038-10-08T10:55:06+08:00", "utc": "2038-10-08T02:55:06Z", "ms": 2170119305516.164 } } }, "kaala": "daytime", "days": [ { "local_date": "2038-10-07", "window": { "start": { "local": "2038-10-07T05:57:56+08:00", "utc": "2038-10-06T21:57:56Z", "ms": 2170015075577.5112 }, "end": { "local": "2038-10-07T17:43:07+08:00", "utc": "2038-10-07T09:43:07Z", "ms": 2170057386701.7046 } }, "covered_min": 463, "window_min": 705, "qualifies": true }, { "local_date": "2038-10-08", "window": { "start": { "local": "2038-10-08T05:58:23+08:00", "utc": "2038-10-07T21:58:23Z", "ms": 2170101503465.8784 }, "end": { "local": "2038-10-08T17:42:05+08:00", "utc": "2038-10-08T09:42:05Z", "ms": 2170143724546.3325 } }, "covered_min": 0, "window_min": 704, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 05:04 on Thu 7 Oct to 05:14 on Fri 8 Oct, and Śravaṇa from 10:00 on Thu 7 Oct to 10:55 on Fri 8 Oct. They are together from 10:00 on Thu 7 Oct to 05:14 on Fri 8 Oct.", "fact": "2038-10-07T02:00:19Z → 2038-10-07T21:13:55Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 05:58–17:43 on the 7th, 05:58–17:42 on the 8th.", "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 463 of 705 minutes on the 7th and 0 of 704 on the 8th.", "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 2669 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Fuzhou, 2038: Thursday 7 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": "2038-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Vijayā Daśamī (Dussehra) 2038 falls on Thursday 7 October. Daśamī runs from 05:04 on Thu 7 Oct to 05:14 on Fri 8 Oct and is with Śravaṇa in the day time that day, for 463 minutes.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-10-08", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-08", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 285, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-10-08T05:13:55+08:00", "utc": "2038-10-07T21:13:55Z", "ms": 2170098834666.9163 }, "end": { "local": "2038-10-09T05:54:07+08:00", "utc": "2038-10-08T21:54:07Z", "ms": 2170187646633.886 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-08T05:13:55+08:00", "utc": "2038-10-07T21:13:55Z", "ms": 2170098834666.9163 }, "end": { "local": "2038-10-09T05:54:07+08:00", "utc": "2038-10-08T21:54:07Z", "ms": 2170187646633.886 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-10-08", "window": { "start": { "local": "2038-10-08T05:58:23+08:00", "utc": "2038-10-07T21:58:23Z", "ms": 2170101503465.8784 }, "end": { "local": "2038-10-08T05:58:23+08:00", "utc": "2038-10-07T21:58:23Z", "ms": 2170101503465.8784 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-10-09", "window": { "start": { "local": "2038-10-09T05:58:52+08:00", "utc": "2038-10-08T21:58:52Z", "ms": 2170187931667.4995 }, "end": { "local": "2038-10-09T05:58:52+08:00", "utc": "2038-10-08T21:58:52Z", "ms": 2170187931667.4995 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:14 on Fri 8 Oct to 05:54 on Sat 9 Oct.", "fact": "2038-10-07T21:13:55Z → 2038-10-08T21:54:07Z" }, { "step": "kaala", "text": "Sunrise is at 05:58 on the 8th and 05:59 on the 9th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 8th and is not on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 285 s < 300 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Fuzhou, 2038: Friday 8 October.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-08", "confidence": "boundary" } ], "quote": "In Fuzhou, Pāśāṅkuśā Ekādaśī 2038 falls on Friday 8 October. Ekādaśī runs from 05:14 on Fri 8 Oct to 05:54 on Sat 9 Oct and is current at sunrise that day. It is 4 min 45 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-10-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-10-10", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33019, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-10-10T07:00:13+08:00", "utc": "2038-10-09T23:00:13Z", "ms": 2170278013251.8242 }, "end": { "local": "2038-10-11T08:28:42+08:00", "utc": "2038-10-11T00:28:42Z", "ms": 2170369722331.2488 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2038-10-10T07:00:13+08:00", "utc": "2038-10-09T23:00:13Z", "ms": 2170278013251.8242 }, "end": { "local": "2038-10-11T08:28:42+08:00", "utc": "2038-10-11T00:28:42Z", "ms": 2170369722331.2488 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-10", "window": { "start": { "local": "2038-10-10T17:40:02+08:00", "utc": "2038-10-10T09:40:02Z", "ms": 2170316401815.4812 }, "end": { "local": "2038-10-10T19:18:40+08:00", "utc": "2038-10-10T11:18:40Z", "ms": 2170322320115.7656 } }, "covered_min": 99, "window_min": 99, "qualifies": true }, { "local_date": "2038-10-11", "window": { "start": { "local": "2038-10-11T17:39:01+08:00", "utc": "2038-10-11T09:39:01Z", "ms": 2170402741299.2402 }, "end": { "local": "2038-10-11T19:17:52+08:00", "utc": "2038-10-11T11:17:52Z", "ms": 2170408671565.3071 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:00 on Sun 10 Oct to 08:29 on Mon 11 Oct.", "fact": "2038-10-09T23:00:13Z → 2038-10-11T00:28:42Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:40–19:19 on the 10th, 17:39–19:18 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 99 of 99 minutes on the 10th and 0 of 99 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33019 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Sunday 10 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-10", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Sunday 10 October. Trayodaśī runs from 07:00 on Sun 10 Oct to 08:29 on Mon 11 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-10-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 532, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-10-16T19:48:40+08:00", "utc": "2038-10-16T11:48:40Z", "ms": 2170842519847.9683 }, "end": { "local": "2038-10-17T22:22:18+08:00", "utc": "2038-10-17T14:22:18Z", "ms": 2170938138110.5227 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-16T19:48:40+08:00", "utc": "2038-10-16T11:48:40Z", "ms": 2170842519847.9683 }, "end": { "local": "2038-10-17T22:22:18+08:00", "utc": "2038-10-17T14:22:18Z", "ms": 2170938138110.5227 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-10-16", "window": { "start": { "local": "2038-10-16T19:39:48+08:00", "utc": "2038-10-16T11:39:48Z", "ms": 2170841987692.9934 }, "end": { "local": "2038-10-16T19:39:48+08:00", "utc": "2038-10-16T11:39:48Z", "ms": 2170841987692.9934 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-10-17", "window": { "start": { "local": "2038-10-17T20:18:50+08:00", "utc": "2038-10-17T12:18:50Z", "ms": 2170930730059.2297 }, "end": { "local": "2038-10-17T20:18:50+08:00", "utc": "2038-10-17T12:18:50Z", "ms": 2170930730059.2297 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:49 on Sat 16 Oct to 22:22 on Sun 17 Oct.", "fact": "2038-10-16T11:48:40Z → 2038-10-17T14:22:18Z" }, { "step": "kaala", "text": "Moonrise is at 19:40 on the 16th and 20:19 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 16th and is on the 17th.", "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 532 s" }, { "step": "ruling", "text": "Karaka Caturthī, Fuzhou, 2038: Sunday 17 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": "2038-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Karaka Caturthī (Karwa Chauth) 2038 falls on Sunday 17 October. Caturthī runs from 19:49 on Sat 16 Oct to 22:22 on Sun 17 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-10-17", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 532, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-10-16T19:48:40+08:00", "utc": "2038-10-16T11:48:40Z", "ms": 2170842519847.9683 }, "end": { "local": "2038-10-17T22:22:18+08:00", "utc": "2038-10-17T14:22:18Z", "ms": 2170938138110.5227 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-16T19:48:40+08:00", "utc": "2038-10-16T11:48:40Z", "ms": 2170842519847.9683 }, "end": { "local": "2038-10-17T22:22:18+08:00", "utc": "2038-10-17T14:22:18Z", "ms": 2170938138110.5227 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-10-16", "window": { "start": { "local": "2038-10-16T19:39:48+08:00", "utc": "2038-10-16T11:39:48Z", "ms": 2170841987692.9934 }, "end": { "local": "2038-10-16T19:39:48+08:00", "utc": "2038-10-16T11:39:48Z", "ms": 2170841987692.9934 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-10-17", "window": { "start": { "local": "2038-10-17T20:18:50+08:00", "utc": "2038-10-17T12:18:50Z", "ms": 2170930730059.2297 }, "end": { "local": "2038-10-17T20:18:50+08:00", "utc": "2038-10-17T12:18:50Z", "ms": 2170930730059.2297 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:49 on Sat 16 Oct to 22:22 on Sun 17 Oct.", "fact": "2038-10-16T11:48:40Z → 2038-10-17T14:22:18Z" }, { "step": "kaala", "text": "Moonrise is at 19:40 on the 16th and 20:19 on the 17th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 16th and is on the 17th.", "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 532 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Sunday 17 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": "2038-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Sunday 17 October. Caturthī runs from 19:49 on Sat 16 Oct to 22:22 on Sun 17 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-10-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17870, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-10-21T03:59:45+08:00", "utc": "2038-10-20T19:59:45Z", "ms": 2171217585349.3984 }, "end": { "local": "2038-10-22T04:35:03+08:00", "utc": "2038-10-21T20:35:03Z", "ms": 2171306102677.7656 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-21T03:59:45+08:00", "utc": "2038-10-20T19:59:45Z", "ms": 2171217585349.3984 }, "end": { "local": "2038-10-22T04:35:03+08:00", "utc": "2038-10-21T20:35:03Z", "ms": 2171306102677.7656 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-10-20", "window": { "start": { "local": "2038-10-20T22:41:18+08:00", "utc": "2038-10-20T14:41:18Z", "ms": 2171198477729.394 }, "end": { "local": "2038-10-20T22:41:18+08:00", "utc": "2038-10-20T14:41:18Z", "ms": 2171198477729.394 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-10-21", "window": { "start": { "local": "2038-10-21T23:37:13+08:00", "utc": "2038-10-21T15:37:13Z", "ms": 2171288232791.6626 }, "end": { "local": "2038-10-21T23:37:13+08:00", "utc": "2038-10-21T15:37:13Z", "ms": 2171288232791.6626 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 04:00 on Thu 21 Oct to 04:35 on Fri 22 Oct.", "fact": "2038-10-20T19:59:45Z → 2038-10-21T20:35:03Z" }, { "step": "kaala", "text": "Moonrise is at 22:41 on the 20th and 23:37 on the 21st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 20th and is on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17870 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Fuzhou, 2038: Thursday 21 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Ahoyī Aṣṭamī 2038 falls on Thursday 21 October. Aṣṭamī runs from 04:00 on Thu 21 Oct to 04:35 on Fri 22 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-10-24", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10480, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-10-24T03:12:02+08:00", "utc": "2038-10-23T19:12:02Z", "ms": 2171473921601.2737 }, "end": { "local": "2038-10-25T01:15:12+08:00", "utc": "2038-10-24T17:15:12Z", "ms": 2171553311739.3506 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-24T03:12:02+08:00", "utc": "2038-10-23T19:12:02Z", "ms": 2171473921601.2737 }, "end": { "local": "2038-10-25T01:15:12+08:00", "utc": "2038-10-24T17:15:12Z", "ms": 2171553311739.3506 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-10-24", "window": { "start": { "local": "2038-10-24T06:06:41+08:00", "utc": "2038-10-23T22:06:41Z", "ms": 2171484401215.0383 }, "end": { "local": "2038-10-24T06:06:41+08:00", "utc": "2038-10-23T22:06:41Z", "ms": 2171484401215.0383 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-10-25", "window": { "start": { "local": "2038-10-25T06:07:16+08:00", "utc": "2038-10-24T22:07:16Z", "ms": 2171570836068.4175 }, "end": { "local": "2038-10-25T06:07:16+08:00", "utc": "2038-10-24T22:07:16Z", "ms": 2171570836068.4175 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 03:12 on Sun 24 Oct to 01:15 on Mon 25 Oct.", "fact": "2038-10-23T19:12:02Z → 2038-10-24T17:15:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:07 on the 24th and 06:07 on the 25th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 24th and is not on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10480 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Fuzhou, 2038: Sunday 24 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Ramā Ekādaśī 2038 falls on Sunday 24 October. Ekādaśī runs from 03:12 on Sun 24 Oct to 01:15 on Mon 25 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-10-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12458, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-10-25T01:15:12+08:00", "utc": "2038-10-24T17:15:12Z", "ms": 2171553311739.3506 }, "end": { "local": "2038-10-25T22:35:22+08:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-25T01:15:12+08:00", "utc": "2038-10-24T17:15:12Z", "ms": 2171553311739.3506 }, "end": { "local": "2038-10-25T22:35:22+08:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-24", "window": { "start": { "local": "2038-10-24T17:27:00+08:00", "utc": "2038-10-24T09:27:00Z", "ms": 2171525220363.3633 }, "end": { "local": "2038-10-24T19:08:22+08:00", "utc": "2038-10-24T11:08:22Z", "ms": 2171531302457.3706 } }, "covered_min": 0, "window_min": 101, "qualifies": false }, { "local_date": "2038-10-25", "window": { "start": { "local": "2038-10-25T17:26:11+08:00", "utc": "2038-10-25T09:26:11Z", "ms": 2171611570961.0715 }, "end": { "local": "2038-10-25T19:07:44+08:00", "utc": "2038-10-25T11:07:44Z", "ms": 2171617664351.809 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 01:15 on Mon 25 Oct to 22:35 on Mon 25 Oct.", "fact": "2038-10-24T17:15:12Z → 2038-10-25T14:35:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:27–19:08 on the 24th, 17:26–19:08 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 0 of 101 minutes on the 24th and 102 of 102 on the 25th.", "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 12458 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Fuzhou, 2038: Monday 25 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": "2038-10-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Govatsa Dvādaśī (Vasu Baras) 2038 falls on Monday 25 October. Dvādaśī runs from 01:15 on Mon 25 Oct to 22:35 on Mon 25 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 852, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-10-25T22:35:22+08:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 }, "end": { "local": "2038-10-26T19:21:19+08:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-25T22:35:22+08:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 }, "end": { "local": "2038-10-26T19:21:19+08:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-25", "window": { "start": { "local": "2038-10-25T17:26:11+08:00", "utc": "2038-10-25T09:26:11Z", "ms": 2171611570961.0715 }, "end": { "local": "2038-10-25T19:07:44+08:00", "utc": "2038-10-25T11:07:44Z", "ms": 2171617664351.809 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "2038-10-26", "window": { "start": { "local": "2038-10-26T17:25:23+08:00", "utc": "2038-10-26T09:25:23Z", "ms": 2171697922556.1309 }, "end": { "local": "2038-10-26T19:07:07+08:00", "utc": "2038-10-26T11:07:07Z", "ms": 2171704027172.8594 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:35 on Mon 25 Oct to 19:21 on Tue 26 Oct.", "fact": "2038-10-25T14:35:22Z → 2038-10-26T11:21:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:26–19:08 on the 25th, 17:25–19:07 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 102 minutes on the 25th and 102 of 102 on the 26th.", "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 852 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Fuzhou, 2038: Tuesday 26 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": "2038-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Yama Dīpadāna 2038 falls on Tuesday 26 October. Trayodaśī runs from 22:35 on Mon 25 Oct to 19:21 on Tue 26 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/pradosha-vrata?on=2038-10-26", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 852, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-10-25T22:35:22+08:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 }, "end": { "local": "2038-10-26T19:21:19+08:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-25T22:35:22+08:00", "utc": "2038-10-25T14:35:22Z", "ms": 2171630121858.5537 }, "end": { "local": "2038-10-26T19:21:19+08:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-25", "window": { "start": { "local": "2038-10-25T17:26:11+08:00", "utc": "2038-10-25T09:26:11Z", "ms": 2171611570961.0715 }, "end": { "local": "2038-10-25T19:07:44+08:00", "utc": "2038-10-25T11:07:44Z", "ms": 2171617664351.809 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "2038-10-26", "window": { "start": { "local": "2038-10-26T17:25:23+08:00", "utc": "2038-10-26T09:25:23Z", "ms": 2171697922556.1309 }, "end": { "local": "2038-10-26T19:07:07+08:00", "utc": "2038-10-26T11:07:07Z", "ms": 2171704027172.8594 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:35 on Mon 25 Oct to 19:21 on Tue 26 Oct.", "fact": "2038-10-25T14:35:22Z → 2038-10-26T11:21:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:26–19:08 on the 25th, 17:25–19:07 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 102 minutes on the 25th and 102 of 102 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 852 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Tuesday 26 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": "2038-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Tuesday 26 October. Trayodaśī runs from 22:35 on Mon 25 Oct to 19:21 on Tue 26 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-10-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-10-26", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14496, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-10-26T19:21:19+08:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "end": { "local": "2038-10-27T15:43:26+08:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-26T19:21:19+08:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "end": { "local": "2038-10-27T15:43:26+08:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 } }, "kaala": "nishita", "days": [ { "local_date": "2038-10-26", "window": { "start": { "local": "2038-10-26T23:22:55+08:00", "utc": "2038-10-26T15:22:55Z", "ms": 2171719374868.8628 }, "end": { "local": "2038-10-27T00:10:55+08:00", "utc": "2038-10-26T16:10:55Z", "ms": 2171722254868.8628 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-10-27", "window": { "start": { "local": "2038-10-27T23:22:49+08:00", "utc": "2038-10-27T15:22:49Z", "ms": 2171805769302.3416 }, "end": { "local": "2038-10-28T00:10:49+08:00", "utc": "2038-10-27T16:10:49Z", "ms": 2171808649302.3416 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:21 on Tue 26 Oct to 15:43 on Wed 27 Oct.", "fact": "2038-10-26T11:21:19Z → 2038-10-27T07:43:26Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:23–00:11 on the 26th, 23:23–00:11 on the 27th.", "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 26th and 0 of 48 on the 27th.", "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 14496 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Tuesday 26 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": "2038-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Tuesday 26 October. Caturdaśī runs from 19:21 on Tue 26 Oct to 15:43 on Wed 27 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-10-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32723, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-10-26T19:21:19+08:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "end": { "local": "2038-10-27T15:43:26+08:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-26T19:21:19+08:00", "utc": "2038-10-26T11:21:19Z", "ms": 2171704879073.4805 }, "end": { "local": "2038-10-27T15:43:26+08:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 } }, "kaala": "arunodaya", "days": [ { "local_date": "2038-10-27", "window": { "start": { "local": "2038-10-27T04:26:43+08:00", "utc": "2038-10-26T20:26:43Z", "ms": 2171737602564.8665 }, "end": { "local": "2038-10-27T06:08:27+08:00", "utc": "2038-10-26T22:08:27Z", "ms": 2171743707181.595 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "2038-10-28", "window": { "start": { "local": "2038-10-28T04:27:08+08:00", "utc": "2038-10-27T20:27:08Z", "ms": 2171824027665.0757 }, "end": { "local": "2038-10-28T06:09:03+08:00", "utc": "2038-10-27T22:09:03Z", "ms": 2171830143433.3428 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 19:21 on Tue 26 Oct to 15:43 on Wed 27 Oct.", "fact": "2038-10-26T11:21:19Z → 2038-10-27T07:43:26Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:27–06:08 on the 27th, 04:27–06:09 on the 28th.", "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 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 dawn qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 32723 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Fuzhou, 2038: Wednesday 27 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": "2038-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Naraka Caturdaśī (Choti Diwali) 2038 falls on Wednesday 27 October. Caturdaśī runs from 19:21 on Tue 26 Oct to 15:43 on Wed 27 Oct and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6069, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2038-10-27T15:43:26+08:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "end": { "local": "2038-10-28T11:52:55+08:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-27T15:43:26+08:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "end": { "local": "2038-10-28T11:52:55+08:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-27", "window": { "start": { "local": "2038-10-27T17:24:35+08:00", "utc": "2038-10-27T09:24:35Z", "ms": 2171784275171.3403 }, "end": { "local": "2038-10-27T19:06:31+08:00", "utc": "2038-10-27T11:06:31Z", "ms": 2171790390939.6074 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "2038-10-28", "window": { "start": { "local": "2038-10-28T17:23:49+08:00", "utc": "2038-10-28T09:23:49Z", "ms": 2171870628828.3303 }, "end": { "local": "2038-10-28T19:05:56+08:00", "utc": "2038-10-28T11:05:56Z", "ms": 2171876755669.8782 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 15:43 on Wed 27 Oct to 11:53 on Thu 28 Oct.", "fact": "2038-10-27T07:43:26Z → 2038-10-28T03:52:55Z" }, { "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": "Amāvasyā 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: unstated → only-day · margin 6069 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Fuzhou, 2038: Wednesday 27 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": "2038-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Lakṣmī Pūjā (Diwali) 2038 falls on Wednesday 27 October. Amāvasyā runs from 15:43 on Wed 27 Oct to 11:53 on Thu 28 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27563, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2038-10-27T15:43:26+08:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "end": { "local": "2038-10-28T11:52:55+08:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-27T15:43:26+08:00", "utc": "2038-10-27T07:43:26Z", "ms": 2171778206023.5193 }, "end": { "local": "2038-10-28T11:52:55+08:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 } }, "kaala": "nishita", "days": [ { "local_date": "2038-10-27", "window": { "start": { "local": "2038-10-27T23:22:49+08:00", "utc": "2038-10-27T15:22:49Z", "ms": 2171805769302.3416 }, "end": { "local": "2038-10-28T00:10:49+08:00", "utc": "2038-10-27T16:10:49Z", "ms": 2171808649302.3416 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-10-28", "window": { "start": { "local": "2038-10-28T23:22:44+08:00", "utc": "2038-10-28T15:22:44Z", "ms": 2171892164484.1345 }, "end": { "local": "2038-10-29T00:10:44+08:00", "utc": "2038-10-28T16:10:44Z", "ms": 2171895044484.1345 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 15:43 on Wed 27 Oct to 11:53 on Thu 28 Oct.", "fact": "2038-10-27T07:43:26Z → 2038-10-28T03:52:55Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:23–00:11 on the 27th, 23:23–00:11 on the 28th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 27th and 0 of 48 on the 28th.", "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 27563 s" }, { "step": "ruling", "text": "Kālī Pūjā, Fuzhou, 2038: Wednesday 27 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": "2038-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Kālī Pūjā 2038 falls on Wednesday 27 October. Amāvasyā runs from 15:43 on Wed 27 Oct to 11:53 on Thu 28 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1051, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-10-28T11:52:55+08:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-29T08:01:11+08:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-28T11:52:55+08:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-29T08:01:11+08:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-28", "window": { "start": { "local": "2038-10-28T11:22:26+08:00", "utc": "2038-10-28T03:22:26Z", "ms": 2171848946130.8364 }, "end": { "local": "2038-10-28T12:10:26+08:00", "utc": "2038-10-28T04:10:26Z", "ms": 2171851826130.8364 } }, "covered_min": 18, "window_min": 48, "qualifies": true }, { "local_date": "2038-10-29", "window": { "start": { "local": "2038-10-29T11:22:22+08:00", "utc": "2038-10-29T03:22:22Z", "ms": 2171935341843.9546 }, "end": { "local": "2038-10-29T12:10:22+08:00", "utc": "2038-10-29T04:10:22Z", "ms": 2171938221843.9546 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 11:53 on Thu 28 Oct to 08:01 on Fri 29 Oct.", "fact": "2038-10-28T03:52:55Z → 2038-10-29T00:01:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 28th, 11:22–12:10 on the 29th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 18 of 48 minutes on the 28th and 0 of 48 on the 29th.", "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 1051 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Fuzhou, 2038: Thursday 28 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": "2038-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Govardhana Pūjā 2038 falls on Thursday 28 October. Pratipadā runs from 11:53 on Thu 28 Oct to 08:01 on Fri 29 Oct and covers 18 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19854, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-10-28T11:52:55+08:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-29T08:01:11+08:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-28T11:52:55+08:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-29T08:01:11+08:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-10-28", "window": { "start": { "local": "2038-10-28T17:23:49+08:00", "utc": "2038-10-28T09:23:49Z", "ms": 2171870628828.3303 }, "end": { "local": "2038-10-28T19:05:56+08:00", "utc": "2038-10-28T11:05:56Z", "ms": 2171876755669.8782 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "2038-10-29", "window": { "start": { "local": "2038-10-29T17:23:04+08:00", "utc": "2038-10-29T09:23:04Z", "ms": 2171956983547.9707 }, "end": { "local": "2038-10-29T19:05:21+08:00", "utc": "2038-10-29T11:05:21Z", "ms": 2171963121380.6455 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 11:53 on Thu 28 Oct to 08:01 on Fri 29 Oct.", "fact": "2038-10-28T03:52:55Z → 2038-10-29T00:01:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:24–19:06 on the 28th, 17:23–19:05 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā 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 19854 s" }, { "step": "ruling", "text": "Bali Pūjā, Fuzhou, 2038: Thursday 28 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": "2038-10-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Bali Pūjā 2038 falls on Thursday 28 October. Pratipadā runs from 11:53 on Thu 28 Oct to 08:01 on Fri 29 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12071, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2038-10-29T08:01:11+08:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 }, "end": { "local": "2038-10-30T04:19:23+08:00", "utc": "2038-10-29T20:19:23Z", "ms": 2171996363342.4727 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-29T08:01:11+08:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 }, "end": { "local": "2038-10-30T04:19:23+08:00", "utc": "2038-10-29T20:19:23Z", "ms": 2171996363342.4727 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-29", "window": { "start": { "local": "2038-10-29T11:22:22+08:00", "utc": "2038-10-29T03:22:22Z", "ms": 2171935341843.9546 }, "end": { "local": "2038-10-29T12:10:22+08:00", "utc": "2038-10-29T04:10:22Z", "ms": 2171938221843.9546 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-10-30", "window": { "start": { "local": "2038-10-30T11:22:18+08:00", "utc": "2038-10-30T03:22:18Z", "ms": 2172021738321.9985 }, "end": { "local": "2038-10-30T12:10:18+08:00", "utc": "2038-10-30T04:10:18Z", "ms": 2172024618321.9985 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 08:01 on Fri 29 Oct to 04:19 on Sat 30 Oct.", "fact": "2038-10-29T00:01:11Z → 2038-10-29T20:19:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 29th, 11:22–12:10 on the 30th.", "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 29th and 0 of 48 on the 30th.", "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 12071 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Fuzhou, 2038: Friday 29 October.", "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": "2038-10-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Yama Dvitīyā (Bhai Dooj) 2038 falls on Friday 29 October. Dvitīyā runs from 08:01 on Fri 29 Oct to 04:19 on Sat 30 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6691, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2038-10-28T11:52:55+08:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-29T08:01:11+08:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-28T11:52:55+08:00", "utc": "2038-10-28T03:52:55Z", "ms": 2171850774845.4417 }, "end": { "local": "2038-10-29T08:01:11+08:00", "utc": "2038-10-29T00:01:11Z", "ms": 2171923270935.0044 } }, "kaala": "purvahna", "days": [ { "local_date": "2038-10-28", "window": { "start": { "local": "2038-10-28T06:09:03+08:00", "utc": "2038-10-27T22:09:03Z", "ms": 2171830143433.3428 }, "end": { "local": "2038-10-28T09:53:59+08:00", "utc": "2038-10-28T01:53:59Z", "ms": 2171843638565.0054 } }, "covered_min": 0, "window_min": 225, "qualifies": false }, { "local_date": "2038-10-29", "window": { "start": { "local": "2038-10-29T06:09:40+08:00", "utc": "2038-10-28T22:09:40Z", "ms": 2171916580139.9387 }, "end": { "local": "2038-10-29T09:54:08+08:00", "utc": "2038-10-29T01:54:08Z", "ms": 2171930047942.616 } }, "covered_min": 112, "window_min": 224, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 11:53 on Thu 28 Oct to 08:01 on Fri 29 Oct.", "fact": "2038-10-28T03:52:55Z → 2038-10-29T00:01:11Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:09–09:54 on the 28th, 06:10–09:54 on the 29th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 0 of 225 minutes on the 28th and 112 of 224 on the 29th.", "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 6691 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Fuzhou, 2038: Friday 29 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-10-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Dyūta Pratipad 2038 falls on Friday 29 October. Pratipadā runs from 11:53 on Thu 28 Oct to 08:01 on Fri 29 Oct and covers 112 of 224 minutes of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35751, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-10-31T00:57:57+08:00", "utc": "2038-10-30T16:57:57Z", "ms": 2172070677432.4795 }, "end": { "local": "2038-10-31T22:06:06+08:00", "utc": "2038-10-31T14:06:06Z", "ms": 2172146766142.7761 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-31T00:57:57+08:00", "utc": "2038-10-30T16:57:57Z", "ms": 2172070677432.4795 }, "end": { "local": "2038-10-31T22:06:06+08:00", "utc": "2038-10-31T14:06:06Z", "ms": 2172146766142.7761 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-30", "window": { "start": { "local": "2038-10-30T11:22:18+08:00", "utc": "2038-10-30T03:22:18Z", "ms": 2172021738321.9985 }, "end": { "local": "2038-10-30T12:10:18+08:00", "utc": "2038-10-30T04:10:18Z", "ms": 2172024618321.9985 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-31", "window": { "start": { "local": "2038-10-31T11:22:16+08:00", "utc": "2038-10-31T03:22:16Z", "ms": 2172108135570.9106 }, "end": { "local": "2038-10-31T12:10:16+08:00", "utc": "2038-10-31T04:10:16Z", "ms": 2172111015570.9106 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:58 on Sun 31 Oct to 22:06 on Sun 31 Oct.", "fact": "2038-10-30T16:57:57Z → 2038-10-31T14:06:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 30th, 11:22–12:10 on the 31st.", "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 30th and 48 of 48 on the 31st.", "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 35751 s" }, { "step": "ruling", "text": "Nāga Caturthī, Fuzhou, 2038: Sunday 31 October.", "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": "2038-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Nāga Caturthī 2038 falls on Sunday 31 October. Caturthī runs from 00:58 on Sun 31 Oct to 22:06 on Sun 31 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vinayaka-chaturthi?on=2038-10-31", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-10-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35751, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-10-31T00:57:57+08:00", "utc": "2038-10-30T16:57:57Z", "ms": 2172070677432.4795 }, "end": { "local": "2038-10-31T22:06:06+08:00", "utc": "2038-10-31T14:06:06Z", "ms": 2172146766142.7761 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-10-31T00:57:57+08:00", "utc": "2038-10-30T16:57:57Z", "ms": 2172070677432.4795 }, "end": { "local": "2038-10-31T22:06:06+08:00", "utc": "2038-10-31T14:06:06Z", "ms": 2172146766142.7761 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-10-30", "window": { "start": { "local": "2038-10-30T11:22:18+08:00", "utc": "2038-10-30T03:22:18Z", "ms": 2172021738321.9985 }, "end": { "local": "2038-10-30T12:10:18+08:00", "utc": "2038-10-30T04:10:18Z", "ms": 2172024618321.9985 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-10-31", "window": { "start": { "local": "2038-10-31T11:22:16+08:00", "utc": "2038-10-31T03:22:16Z", "ms": 2172108135570.9106 }, "end": { "local": "2038-10-31T12:10:16+08:00", "utc": "2038-10-31T04:10:16Z", "ms": 2172111015570.9106 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:58 on Sun 31 Oct to 22:06 on Sun 31 Oct.", "fact": "2038-10-30T16:57:57Z → 2038-10-31T14:06:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 30th, 11:22–12:10 on the 31st.", "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 30th and 48 of 48 on the 31st.", "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 35751 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Sunday 31 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": "2038-10-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-10-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Sunday 31 October. Caturthī runs from 00:58 on Sun 31 Oct to 22:06 on Sun 31 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-10-31", "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/2038/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22114, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-11-01T19:51:18+08:00", "utc": "2038-11-01T11:51:18Z", "ms": 2172225078373.4788 }, "end": { "local": "2038-11-02T18:18:46+08:00", "utc": "2038-11-02T10:18:46Z", "ms": 2172305926496.8455 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-01T19:51:18+08:00", "utc": "2038-11-01T11:51:18Z", "ms": 2172225078373.4788 }, "end": { "local": "2038-11-02T18:18:46+08:00", "utc": "2038-11-02T10:18:46Z", "ms": 2172305926496.8455 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-01", "window": { "start": { "local": "2038-11-01T11:22:14+08:00", "utc": "2038-11-01T03:22:14Z", "ms": 2172194533596.8757 }, "end": { "local": "2038-11-01T12:10:14+08:00", "utc": "2038-11-01T04:10:14Z", "ms": 2172197413596.8757 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-11-02", "window": { "start": { "local": "2038-11-02T11:22:12+08:00", "utc": "2038-11-02T03:22:12Z", "ms": 2172280932406.5867 }, "end": { "local": "2038-11-02T12:10:12+08:00", "utc": "2038-11-02T04:10:12Z", "ms": 2172283812406.5867 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 19:51 on Mon 1 Nov to 18:19 on Tue 2 Nov.", "fact": "2038-11-01T11:51:18Z → 2038-11-02T10:18:46Z" }, { "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": "Ṣaṣṭhī 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: unstated → only-day · margin 22114 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Fuzhou, 2038: Tuesday 2 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": "2038-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Sūrya Ṣaṣṭhī (Chhath) 2038 falls on Tuesday 2 November. Ṣaṣṭhī runs from 19:51 on Mon 1 Nov to 18:19 on Tue 2 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19035, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2038-11-03T17:30:59+08:00", "utc": "2038-11-03T09:30:59Z", "ms": 2172389459068.5034 }, "end": { "local": "2038-11-04T17:27:28+08:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-03T17:30:59+08:00", "utc": "2038-11-03T09:30:59Z", "ms": 2172389459068.5034 }, "end": { "local": "2038-11-04T17:27:28+08:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-03", "window": { "start": { "local": "2038-11-03T11:22:12+08:00", "utc": "2038-11-03T03:22:12Z", "ms": 2172367332007.2705 }, "end": { "local": "2038-11-03T12:10:12+08:00", "utc": "2038-11-03T04:10:12Z", "ms": 2172370212007.2705 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-11-04", "window": { "start": { "local": "2038-11-04T11:22:12+08:00", "utc": "2038-11-04T03:22:12Z", "ms": 2172453732406.545 }, "end": { "local": "2038-11-04T12:10:12+08:00", "utc": "2038-11-04T04:10:12Z", "ms": 2172456612406.545 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 17:31 on Wed 3 Nov to 17:27 on Thu 4 Nov.", "fact": "2038-11-03T09:30:59Z → 2038-11-04T09:27:28Z" }, { "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": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19035 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Fuzhou, 2038: Thursday 4 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gopashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Gopastami, Gosthastami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Gopāṣṭamī 2038 falls on Thursday 4 November. Aṣṭamī runs from 17:31 on Wed 3 Nov to 17:27 on Thu 4 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27130, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2038-11-04T17:27:28+08:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 }, "end": { "local": "2038-11-05T18:04:58+08:00", "utc": "2038-11-05T10:04:58Z", "ms": 2172564298233.434 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-04T17:27:28+08:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 }, "end": { "local": "2038-11-05T18:04:58+08:00", "utc": "2038-11-05T10:04:58Z", "ms": 2172564298233.434 } }, "kaala": "purvahna", "days": [ { "local_date": "2038-11-04", "window": { "start": { "local": "2038-11-04T06:13:29+08:00", "utc": "2038-11-03T22:13:29Z", "ms": 2172435209431.5603 }, "end": { "local": "2038-11-04T09:55:18+08:00", "utc": "2038-11-04T01:55:18Z", "ms": 2172448518081.55 } }, "covered_min": 0, "window_min": 222, "qualifies": false }, { "local_date": "2038-11-05", "window": { "start": { "local": "2038-11-05T06:14:09+08:00", "utc": "2038-11-04T22:14:09Z", "ms": 2172521649071.5928 }, "end": { "local": "2038-11-05T09:55:32+08:00", "utc": "2038-11-05T01:55:32Z", "ms": 2172534932098.6602 } }, "covered_min": 221, "window_min": 221, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 17:27 on Thu 4 Nov to 18:05 on Fri 5 Nov.", "fact": "2038-11-04T09:27:28Z → 2038-11-05T10:04:58Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:13–09:55 on the 4th, 06:14–09:56 on the 5th.", "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 222 minutes on the 4th and 221 of 221 on the 5th.", "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 27130 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Fuzhou, 2038: Friday 5 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": "2038-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Akṣaya Navamī (Amla Navami) 2038 falls on Friday 5 November. Navamī runs from 17:27 on Thu 4 Nov to 18:05 on Fri 5 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19035, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2038-11-04T17:27:28+08:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 }, "end": { "local": "2038-11-05T18:04:58+08:00", "utc": "2038-11-05T10:04:58Z", "ms": 2172564298233.434 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-04T17:27:28+08:00", "utc": "2038-11-04T09:27:28Z", "ms": 2172475647904.0674 }, "end": { "local": "2038-11-05T18:04:58+08:00", "utc": "2038-11-05T10:04:58Z", "ms": 2172564298233.434 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-04", "window": { "start": { "local": "2038-11-04T11:22:12+08:00", "utc": "2038-11-04T03:22:12Z", "ms": 2172453732406.545 }, "end": { "local": "2038-11-04T12:10:12+08:00", "utc": "2038-11-04T04:10:12Z", "ms": 2172456612406.545 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-11-05", "window": { "start": { "local": "2038-11-05T11:22:14+08:00", "utc": "2038-11-05T03:22:14Z", "ms": 2172540133612.1938 }, "end": { "local": "2038-11-05T12:10:14+08:00", "utc": "2038-11-05T04:10:14Z", "ms": 2172543013612.1938 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 17:27 on Thu 4 Nov to 18:05 on Fri 5 Nov.", "fact": "2038-11-04T09:27:28Z → 2038-11-05T10:04:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 4th, 11:22–12:10 on the 5th.", "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 4th and 48 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: purvaviddha → only-day · margin 19035 s" }, { "step": "ruling", "text": "Durgā Navamī, Fuzhou, 2038: Friday 5 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": "2038-11-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Durgā Navamī 2038 falls on Friday 5 November. Navamī runs from 17:27 on Thu 4 Nov to 18:05 on Fri 5 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-11-07", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33363, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-11-06T19:18:05+08:00", "utc": "2038-11-06T11:18:05Z", "ms": 2172655084857.5796 }, "end": { "local": "2038-11-07T21:00:07+08:00", "utc": "2038-11-07T13:00:07Z", "ms": 2172747607452.2095 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-06T19:18:05+08:00", "utc": "2038-11-06T11:18:05Z", "ms": 2172655084857.5796 }, "end": { "local": "2038-11-07T21:00:07+08:00", "utc": "2038-11-07T13:00:07Z", "ms": 2172747607452.2095 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-11-07", "window": { "start": { "local": "2038-11-07T06:15:29+08:00", "utc": "2038-11-06T22:15:29Z", "ms": 2172694529496.2083 }, "end": { "local": "2038-11-07T06:15:29+08:00", "utc": "2038-11-06T22:15:29Z", "ms": 2172694529496.2083 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-11-08", "window": { "start": { "local": "2038-11-08T06:16:10+08:00", "utc": "2038-11-07T22:16:10Z", "ms": 2172780970262.8914 }, "end": { "local": "2038-11-08T06:16:10+08:00", "utc": "2038-11-07T22:16:10Z", "ms": 2172780970262.8914 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:18 on Sat 6 Nov to 21:00 on Sun 7 Nov.", "fact": "2038-11-06T11:18:05Z → 2038-11-07T13:00:07Z" }, { "step": "kaala", "text": "Sunrise is at 06:15 on the 7th and 06:16 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33363 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Fuzhou, 2038: Sunday 7 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Prabodhinī Ekādaśī 2038 falls on Sunday 7 November. Ekādaśī runs from 19:18 on Sat 6 Nov to 21:00 on Sun 7 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-11-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-11-09", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14613, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-11-08T23:04:09+08:00", "utc": "2038-11-08T15:04:09Z", "ms": 2172841449432.8901 }, "end": { "local": "2038-11-10T01:23:43+08:00", "utc": "2038-11-09T17:23:43Z", "ms": 2172936222614.3342 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-08T23:04:09+08:00", "utc": "2038-11-08T15:04:09Z", "ms": 2172841449432.8901 }, "end": { "local": "2038-11-10T01:23:43+08:00", "utc": "2038-11-09T17:23:43Z", "ms": 2172936222614.3342 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-11-08", "window": { "start": { "local": "2038-11-08T17:16:34+08:00", "utc": "2038-11-08T09:16:34Z", "ms": 2172820594023.2405 }, "end": { "local": "2038-11-08T19:00:36+08:00", "utc": "2038-11-08T11:00:36Z", "ms": 2172826836338.3025 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "2038-11-09", "window": { "start": { "local": "2038-11-09T17:16:02+08:00", "utc": "2038-11-09T09:16:02Z", "ms": 2172906961909.7393 }, "end": { "local": "2038-11-09T19:00:14+08:00", "utc": "2038-11-09T11:00:14Z", "ms": 2172913214035.8354 } }, "covered_min": 104, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:04 on Mon 8 Nov to 01:24 on Wed 10 Nov.", "fact": "2038-11-08T15:04:09Z → 2038-11-09T17:23:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:17–19:01 on the 8th, 17:16–19:00 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 104 minutes on the 8th and 104 of 104 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14613 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Tuesday 9 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Tuesday 9 November. Trayodaśī runs from 23:04 on Mon 8 Nov to 01:24 on Wed 10 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-11-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17731, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-11-11T03:53:06+08:00", "utc": "2038-11-10T19:53:06Z", "ms": 2173031585669.6252 }, "end": { "local": "2038-11-12T06:27:15+08:00", "utc": "2038-11-11T22:27:15Z", "ms": 2173127234548.3743 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-11T03:53:06+08:00", "utc": "2038-11-10T19:53:06Z", "ms": 2173031585669.6252 }, "end": { "local": "2038-11-12T06:27:15+08:00", "utc": "2038-11-11T22:27:15Z", "ms": 2173127234548.3743 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-11", "window": { "start": { "local": "2038-11-11T11:22:38+08:00", "utc": "2038-11-11T03:22:38Z", "ms": 2173058558185.553 }, "end": { "local": "2038-11-11T12:10:38+08:00", "utc": "2038-11-11T04:10:38Z", "ms": 2173061438185.553 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-11-12", "window": { "start": { "local": "2038-11-12T11:22:45+08:00", "utc": "2038-11-12T03:22:45Z", "ms": 2173144965227.6006 }, "end": { "local": "2038-11-12T12:10:45+08:00", "utc": "2038-11-12T04:10:45Z", "ms": 2173147845227.6006 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 03:53 on Thu 11 Nov to 06:27 on Fri 12 Nov.", "fact": "2038-11-10T19:53:06Z → 2038-11-11T22:27:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:23–12:11 on the 11th, 11:23–12:11 on the 12th.", "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 11th and 0 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: unstated → only-day · margin 17731 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Fuzhou, 2038: Thursday 11 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": "2038-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Kārtikī Pūrṇimā 2038 falls on Thursday 11 November. Pūrṇimā runs from 03:53 on Thu 11 Nov to 06:27 on Fri 12 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13333, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-11-11T03:53:06+08:00", "utc": "2038-11-10T19:53:06Z", "ms": 2173031585669.6252 }, "end": { "local": "2038-11-12T06:27:15+08:00", "utc": "2038-11-11T22:27:15Z", "ms": 2173127234548.3743 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2038-11-11T03:53:06+08:00", "utc": "2038-11-10T19:53:06Z", "ms": 2173031585669.6252 }, "end": { "local": "2038-11-12T06:27:15+08:00", "utc": "2038-11-11T22:27:15Z", "ms": 2173127234548.3743 } }, "kaala": "nishita", "days": [ { "local_date": "2038-11-10", "window": { "start": { "local": "2038-11-10T23:22:53+08:00", "utc": "2038-11-10T15:22:53Z", "ms": 2173015372895.5615 }, "end": { "local": "2038-11-11T00:10:53+08:00", "utc": "2038-11-10T16:10:53Z", "ms": 2173018252895.5615 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-11-11", "window": { "start": { "local": "2038-11-11T23:22:59+08:00", "utc": "2038-11-11T15:22:59Z", "ms": 2173101779248.1885 }, "end": { "local": "2038-11-12T00:10:59+08:00", "utc": "2038-11-11T16:10:59Z", "ms": 2173104659248.1885 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 03:53 on Thu 11 Nov to 06:27 on Fri 12 Nov.", "fact": "2038-11-10T19:53:06Z → 2038-11-11T22:27:15Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:23–00:11 on the 10th, 23:23–00:11 on the 11th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 13333 s" }, { "step": "ruling", "text": "Rāsayātrā, Fuzhou, 2038: Thursday 11 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": "2038-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Rāsayātrā 2038 falls on Thursday 11 November. Pūrṇimā runs from 03:53 on Thu 11 Nov to 06:27 on Fri 12 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-11-15", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17578, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-11-15T13:45:55+08:00", "utc": "2038-11-15T05:45:55Z", "ms": 2173412754829.9617 }, "end": { "local": "2038-11-16T15:42:52+08:00", "utc": "2038-11-16T07:42:52Z", "ms": 2173506172167.4075 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-15T13:45:55+08:00", "utc": "2038-11-15T05:45:55Z", "ms": 2173412754829.9617 }, "end": { "local": "2038-11-16T15:42:52+08:00", "utc": "2038-11-16T07:42:52Z", "ms": 2173506172167.4075 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-11-15", "window": { "start": { "local": "2038-11-15T19:45:38+08:00", "utc": "2038-11-15T11:45:38Z", "ms": 2173434337856.3044 }, "end": { "local": "2038-11-15T19:45:38+08:00", "utc": "2038-11-15T11:45:38Z", "ms": 2173434337856.3044 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-11-16", "window": { "start": { "local": "2038-11-16T20:35:50+08:00", "utc": "2038-11-16T12:35:50Z", "ms": 2173523750390.9714 }, "end": { "local": "2038-11-16T20:35:50+08:00", "utc": "2038-11-16T12:35:50Z", "ms": 2173523750390.9714 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:46 on Mon 15 Nov to 15:43 on Tue 16 Nov.", "fact": "2038-11-15T05:45:55Z → 2038-11-16T07:42:52Z" }, { "step": "kaala", "text": "Moonrise is at 19:46 on the 15th and 20:36 on the 16th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 15th and is not on the 16th.", "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 17578 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Monday 15 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": "2038-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Monday 15 November. Caturthī runs from 13:46 on Mon 15 Nov to 15:43 on Tue 16 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-11-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/ekadashi?on=2038-11-23", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19480, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-11-22T14:30:18+08:00", "utc": "2038-11-22T06:30:18Z", "ms": 2174020217907.8594 }, "end": { "local": "2038-11-23T11:51:37+08:00", "utc": "2038-11-23T03:51:37Z", "ms": 2174097096800.7112 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-22T14:30:18+08:00", "utc": "2038-11-22T06:30:18Z", "ms": 2174020217907.8594 }, "end": { "local": "2038-11-23T11:51:37+08:00", "utc": "2038-11-23T03:51:37Z", "ms": 2174097096800.7112 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-11-22", "window": { "start": { "local": "2038-11-22T06:26:12+08:00", "utc": "2038-11-21T22:26:12Z", "ms": 2173991172015.2834 }, "end": { "local": "2038-11-22T06:26:12+08:00", "utc": "2038-11-21T22:26:12Z", "ms": 2173991172015.2834 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-11-23", "window": { "start": { "local": "2038-11-23T06:26:56+08:00", "utc": "2038-11-22T22:26:56Z", "ms": 2174077616452.9888 }, "end": { "local": "2038-11-23T06:26:56+08:00", "utc": "2038-11-22T22:26:56Z", "ms": 2174077616452.9888 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:30 on Mon 22 Nov to 11:52 on Tue 23 Nov.", "fact": "2038-11-22T06:30:18Z → 2038-11-23T03:51:37Z" }, { "step": "kaala", "text": "Sunrise is at 06:26 on the 22nd and 06:27 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 22nd and is on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19480 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Fuzhou, 2038: Tuesday 23 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-11-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-23", "confidence": "determinate" } ], "quote": "In Fuzhou, Utpannā Ekādaśī 2038 falls on Tuesday 23 November. Ekādaśī runs from 14:30 on Mon 22 Nov to 11:52 on Tue 23 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-11-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-11-24", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30505, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-11-24T08:42:26+08:00", "utc": "2038-11-24T00:42:26Z", "ms": 2174172146094.513 }, "end": { "local": "2038-11-25T05:11:49+08:00", "utc": "2038-11-24T21:11:49Z", "ms": 2174245908640.526 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-24T08:42:26+08:00", "utc": "2038-11-24T00:42:26Z", "ms": 2174172146094.513 }, "end": { "local": "2038-11-25T05:11:49+08:00", "utc": "2038-11-24T21:11:49Z", "ms": 2174245908640.526 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-11-24", "window": { "start": { "local": "2038-11-24T17:10:51+08:00", "utc": "2038-11-24T09:10:51Z", "ms": 2174202651258.7246 }, "end": { "local": "2038-11-24T18:57:12+08:00", "utc": "2038-11-24T10:57:12Z", "ms": 2174209031818.393 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "2038-11-25", "window": { "start": { "local": "2038-11-25T17:10:43+08:00", "utc": "2038-11-25T09:10:43Z", "ms": 2174289042633.1458 }, "end": { "local": "2038-11-25T18:57:10+08:00", "utc": "2038-11-25T10:57:10Z", "ms": 2174295430275.2632 } }, "covered_min": 0, "window_min": 106, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:42 on Wed 24 Nov to 05:12 on Thu 25 Nov.", "fact": "2038-11-24T00:42:26Z → 2038-11-24T21:11:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:11–18:57 on the 24th, 17:11–18:57 on the 25th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 24th and 0 of 106 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30505 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Wednesday 24 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-11-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Wednesday 24 November. Trayodaśī runs from 08:42 on Wed 24 Nov to 05:12 on Thu 25 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-11-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/shivaratri?on=2038-11-25", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4549, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-11-25T05:11:49+08:00", "utc": "2038-11-24T21:11:49Z", "ms": 2174245908640.526 }, "end": { "local": "2038-11-26T01:29:46+08:00", "utc": "2038-11-25T17:29:46Z", "ms": 2174318985549.7139 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-25T05:11:49+08:00", "utc": "2038-11-24T21:11:49Z", "ms": 2174245908640.526 }, "end": { "local": "2038-11-26T01:29:46+08:00", "utc": "2038-11-25T17:29:46Z", "ms": 2174318985549.7139 } }, "kaala": "nishita", "days": [ { "local_date": "2038-11-24", "window": { "start": { "local": "2038-11-24T23:25:38+08:00", "utc": "2038-11-24T15:25:38Z", "ms": 2174225138357.4817 }, "end": { "local": "2038-11-25T00:13:38+08:00", "utc": "2038-11-24T16:13:38Z", "ms": 2174228018357.4817 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-11-25", "window": { "start": { "local": "2038-11-25T23:25:56+08:00", "utc": "2038-11-25T15:25:56Z", "ms": 2174311556291.086 }, "end": { "local": "2038-11-26T00:13:56+08:00", "utc": "2038-11-25T16:13:56Z", "ms": 2174314436291.086 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:12 on Thu 25 Nov to 01:30 on Fri 26 Nov.", "fact": "2038-11-24T21:11:49Z → 2038-11-25T17:29:46Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:26–00:14 on the 24th, 23:26–00:14 on the 25th.", "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 24th and 48 of 48 on the 25th.", "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 4549 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Thursday 25 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": "2038-11-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Thursday 25 November. Caturdaśī runs from 05:12 on Thu 25 Nov to 01:30 on Fri 26 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-11-25", "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/2038/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4703, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2038-11-30T10:08:52+08:00", "utc": "2038-11-30T02:08:52Z", "ms": 2174695731604.6328 }, "end": { "local": "2038-12-01T08:45:50+08:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-30T10:08:52+08:00", "utc": "2038-11-30T02:08:52Z", "ms": 2174695731604.6328 }, "end": { "local": "2038-12-01T08:45:50+08:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-30", "window": { "start": { "local": "2038-11-30T11:27:15+08:00", "utc": "2038-11-30T03:27:15Z", "ms": 2174700434835.9453 }, "end": { "local": "2038-11-30T12:15:15+08:00", "utc": "2038-11-30T04:15:15Z", "ms": 2174703314835.9453 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-12-01", "window": { "start": { "local": "2038-12-01T11:27:37+08:00", "utc": "2038-12-01T03:27:37Z", "ms": 2174786857050.0913 }, "end": { "local": "2038-12-01T12:15:37+08:00", "utc": "2038-12-01T04:15:37Z", "ms": 2174789737050.0913 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 10:09 on Tue 30 Nov to 08:46 on Wed 1 Dec.", "fact": "2038-11-30T02:08:52Z → 2038-12-01T00:45:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 30th, 11:28–12:16 on the 1st.", "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 30th 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: paraviddha → only-day · margin 4703 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Fuzhou, 2038: Tuesday 30 November.", "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": "2038-11-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Nāga Pañcamī (Mārgaśīrṣa) 2038 falls on Tuesday 30 November. Pañcamī runs from 10:09 on Tue 30 Nov to 08:46 on Wed 1 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/vinayaka-chaturthi?on=2038-11-30", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-11-30", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 45, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-11-29T12:15:38+08:00", "utc": "2038-11-29T04:15:38Z", "ms": 2174616938041.3376 }, "end": { "local": "2038-11-30T10:08:52+08:00", "utc": "2038-11-30T02:08:52Z", "ms": 2174695731604.6328 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-11-29T12:15:38+08:00", "utc": "2038-11-29T04:15:38Z", "ms": 2174616938041.3376 }, "end": { "local": "2038-11-30T10:08:52+08:00", "utc": "2038-11-30T02:08:52Z", "ms": 2174695731604.6328 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-11-29", "window": { "start": { "local": "2038-11-29T11:26:53+08:00", "utc": "2038-11-29T03:26:53Z", "ms": 2174614013276.0737 }, "end": { "local": "2038-11-29T12:14:53+08:00", "utc": "2038-11-29T04:14:53Z", "ms": 2174616893276.0737 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-11-30", "window": { "start": { "local": "2038-11-30T11:27:15+08:00", "utc": "2038-11-30T03:27:15Z", "ms": 2174700434835.9453 }, "end": { "local": "2038-11-30T12:15:15+08:00", "utc": "2038-11-30T04:15:15Z", "ms": 2174703314835.9453 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 12:16 on Mon 29 Nov to 10:09 on Tue 30 Nov.", "fact": "2038-11-29T04:15:38Z → 2038-11-30T02:08:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 29th, 11:27–12:15 on the 30th.", "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 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 midday qualifies. The rule takes the second day.", "fact": "priority: unstated → second-day · margin 45 s < 300 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Tuesday 30 November.", "fact": "confidence: boundary (margin)" } ], "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": "2038-11-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-11-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Tuesday 30 November. Caturthī runs from 12:16 on Mon 29 Nov to 10:09 on Tue 30 Nov, and reaches madhyāhna on neither day. It is 0 min 45 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-11-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9707, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-12-01T08:45:50+08:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 }, "end": { "local": "2038-12-02T08:10:17+08:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-01T08:45:50+08:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 }, "end": { "local": "2038-12-02T08:10:17+08:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-12-01", "window": { "start": { "local": "2038-12-01T11:27:37+08:00", "utc": "2038-12-01T03:27:37Z", "ms": 2174786857050.0913 }, "end": { "local": "2038-12-01T12:15:37+08:00", "utc": "2038-12-01T04:15:37Z", "ms": 2174789737050.0913 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-12-02", "window": { "start": { "local": "2038-12-02T11:28:00+08:00", "utc": "2038-12-02T03:28:00Z", "ms": 2174873279895.475 }, "end": { "local": "2038-12-02T12:16:00+08:00", "utc": "2038-12-02T04:16:00Z", "ms": 2174876159895.475 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 08:46 on Wed 1 Dec to 08:10 on Thu 2 Dec.", "fact": "2038-12-01T00:45:50Z → 2038-12-02T00:10:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 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": "Ṣaṣṭhī 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: paraviddha → only-day · margin 9707 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Fuzhou, 2038: Wednesday 1 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": "2038-12-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Campā Ṣaṣṭhī 2038 falls on Wednesday 1 December. Ṣaṣṭhī runs from 08:46 on Wed 1 Dec to 08:10 on Thu 2 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9707, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2038-12-01T08:45:50+08:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 }, "end": { "local": "2038-12-02T08:10:17+08:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-01T08:45:50+08:00", "utc": "2038-12-01T00:45:50Z", "ms": 2174777150263.4893 }, "end": { "local": "2038-12-02T08:10:17+08:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-12-01", "window": { "start": { "local": "2038-12-01T11:27:37+08:00", "utc": "2038-12-01T03:27:37Z", "ms": 2174786857050.0913 }, "end": { "local": "2038-12-01T12:15:37+08:00", "utc": "2038-12-01T04:15:37Z", "ms": 2174789737050.0913 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-12-02", "window": { "start": { "local": "2038-12-02T11:28:00+08:00", "utc": "2038-12-02T03:28:00Z", "ms": 2174873279895.475 }, "end": { "local": "2038-12-02T12:16:00+08:00", "utc": "2038-12-02T04:16:00Z", "ms": 2174876159895.475 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 08:46 on Wed 1 Dec to 08:10 on Thu 2 Dec.", "fact": "2038-12-01T00:45:50Z → 2038-12-02T00:10:17Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 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": "Ṣaṣṭhī 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 9707 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Fuzhou, 2038: Wednesday 1 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": "2038-12-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Skanda Ṣaṣṭhī 2038 falls on Wednesday 1 December. Ṣaṣṭhī runs from 08:46 on Wed 1 Dec to 08:10 on Thu 2 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11137, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2038-12-02T08:10:17+08:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 }, "end": { "local": "2038-12-03T08:22:46+08:00", "utc": "2038-12-03T00:22:46Z", "ms": 2174948566124.873 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-02T08:10:17+08:00", "utc": "2038-12-02T00:10:17Z", "ms": 2174861417196.4343 }, "end": { "local": "2038-12-03T08:22:46+08:00", "utc": "2038-12-03T00:22:46Z", "ms": 2174948566124.873 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-12-02", "window": { "start": { "local": "2038-12-02T11:28:00+08:00", "utc": "2038-12-02T03:28:00Z", "ms": 2174873279895.475 }, "end": { "local": "2038-12-02T12:16:00+08:00", "utc": "2038-12-02T04:16:00Z", "ms": 2174876159895.475 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-12-03", "window": { "start": { "local": "2038-12-03T11:28:23+08:00", "utc": "2038-12-03T03:28:23Z", "ms": 2174959703349.1655 }, "end": { "local": "2038-12-03T12:16:23+08:00", "utc": "2038-12-03T04:16:23Z", "ms": 2174962583349.1655 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 08:10 on Thu 2 Dec to 08:23 on Fri 3 Dec.", "fact": "2038-12-02T00:10:17Z → 2038-12-03T00:22:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:28–12:16 on the 2nd, 11:28–12:16 on the 3rd.", "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 2nd and 0 of 48 on the 3rd.", "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 11137 s" }, { "step": "ruling", "text": "Mitra Saptamī, Fuzhou, 2038: Thursday 2 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": "2038-12-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Mitra Saptamī 2038 falls on Thursday 2 December. Saptamī runs from 08:10 on Thu 2 Dec to 08:23 on Fri 3 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/ekadashi?on=2038-12-07", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23229, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-12-06T13:03:34+08:00", "utc": "2038-12-06T05:03:34Z", "ms": 2175224613544.4094 }, "end": { "local": "2038-12-07T15:30:13+08:00", "utc": "2038-12-07T07:30:13Z", "ms": 2175319813252.7947 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-06T13:03:34+08:00", "utc": "2038-12-06T05:03:34Z", "ms": 2175224613544.4094 }, "end": { "local": "2038-12-07T15:30:13+08:00", "utc": "2038-12-07T07:30:13Z", "ms": 2175319813252.7947 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-12-06", "window": { "start": { "local": "2038-12-06T06:36:25+08:00", "utc": "2038-12-05T22:36:25Z", "ms": 2175201384824.3018 }, "end": { "local": "2038-12-06T06:36:25+08:00", "utc": "2038-12-05T22:36:25Z", "ms": 2175201384824.3018 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-12-07", "window": { "start": { "local": "2038-12-07T06:37:06+08:00", "utc": "2038-12-06T22:37:06Z", "ms": 2175287826416.7266 }, "end": { "local": "2038-12-07T06:37:06+08:00", "utc": "2038-12-06T22:37:06Z", "ms": 2175287826416.7266 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:04 on Mon 6 Dec to 15:30 on Tue 7 Dec.", "fact": "2038-12-06T05:03:34Z → 2038-12-07T07:30:13Z" }, { "step": "kaala", "text": "Sunrise is at 06:36 on the 6th and 06:37 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23229 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Fuzhou, 2038: Tuesday 7 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-12-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Mokṣadā Ekādaśī 2038 falls on Tuesday 7 December. Ekādaśī runs from 13:04 on Mon 6 Dec to 15:30 on Tue 7 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-12-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11530, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2038-12-07T15:30:13+08:00", "utc": "2038-12-07T07:30:13Z", "ms": 2175319813252.7947 }, "end": { "local": "2038-12-08T18:06:40+08:00", "utc": "2038-12-08T10:06:40Z", "ms": 2175415600095.9897 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-07T15:30:13+08:00", "utc": "2038-12-07T07:30:13Z", "ms": 2175319813252.7947 }, "end": { "local": "2038-12-08T18:06:40+08:00", "utc": "2038-12-08T10:06:40Z", "ms": 2175415600095.9897 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-12-07", "window": { "start": { "local": "2038-12-07T11:30:03+08:00", "utc": "2038-12-07T03:30:03Z", "ms": 2175305402781.9153 }, "end": { "local": "2038-12-07T12:18:03+08:00", "utc": "2038-12-07T04:18:03Z", "ms": 2175308282781.9153 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2038-12-08", "window": { "start": { "local": "2038-12-08T11:30:29+08:00", "utc": "2038-12-08T03:30:29Z", "ms": 2175391828924.982 }, "end": { "local": "2038-12-08T12:18:29+08:00", "utc": "2038-12-08T04:18:29Z", "ms": 2175394708924.982 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 15:30 on Tue 7 Dec to 18:07 on Wed 8 Dec.", "fact": "2038-12-07T07:30:13Z → 2038-12-08T10:06:40Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 7th, 11:30–12:18 on the 8th.", "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 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 11530 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Fuzhou, 2038: Wednesday 8 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": "2038-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Akhaṇḍa Dvādaśī 2038 falls on Wednesday 8 December. Dvādaśī runs from 15:30 on Tue 7 Dec to 18:07 on Wed 8 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/pradosha-vrata?on=2038-12-09", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-09", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 3129, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-12-08T18:06:40+08:00", "utc": "2038-12-08T10:06:40Z", "ms": 2175415600095.9897 }, "end": { "local": "2038-12-09T20:43:41+08:00", "utc": "2038-12-09T12:43:41Z", "ms": 2175511421041.8699 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-08T18:06:40+08:00", "utc": "2038-12-08T10:06:40Z", "ms": 2175415600095.9897 }, "end": { "local": "2038-12-09T20:43:41+08:00", "utc": "2038-12-09T12:43:41Z", "ms": 2175511421041.8699 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-12-08", "window": { "start": { "local": "2038-12-08T17:11:10+08:00", "utc": "2038-12-08T09:11:10Z", "ms": 2175412270340.6082 }, "end": { "local": "2038-12-08T18:58:49+08:00", "utc": "2038-12-08T10:58:49Z", "ms": 2175418728703.7866 } }, "covered_min": 52, "window_min": 108, "qualifies": true }, { "local_date": "2038-12-09", "window": { "start": { "local": "2038-12-09T17:11:23+08:00", "utc": "2038-12-09T09:11:23Z", "ms": 2175498683000.3965 }, "end": { "local": "2038-12-09T18:59:05+08:00", "utc": "2038-12-09T10:59:05Z", "ms": 2175505145006.2766 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:07 on Wed 8 Dec to 20:44 on Thu 9 Dec.", "fact": "2038-12-08T10:06:40Z → 2038-12-09T12:43:41Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:11–18:59 on the 8th, 17:11–18:59 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 52 of 108 minutes on the 8th and 108 of 108 on the 9th.", "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 3129 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2038: Thursday 9 December.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-12-09", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-09", "confidence": "boundary" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2038 falls on Thursday 9 December. Trayodaśī runs from 18:07 on Wed 8 Dec to 20:44 on Thu 9 Dec and covers all of pradoṣa that evening. It also reaches the previous evening for 52 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/2038/pradosha-vrata?on=2038-12-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15255, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2038-12-10T23:13:37+08:00", "utc": "2038-12-10T15:13:37Z", "ms": 2175606817300.0823 }, "end": { "local": "2038-12-12T01:30:28+08:00", "utc": "2038-12-11T17:30:28Z", "ms": 2175701428046.7197 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-10T23:13:37+08:00", "utc": "2038-12-10T15:13:37Z", "ms": 2175606817300.0823 }, "end": { "local": "2038-12-12T01:30:28+08:00", "utc": "2038-12-11T17:30:28Z", "ms": 2175701428046.7197 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-12-10", "window": { "start": { "local": "2038-12-10T17:11:37+08:00", "utc": "2038-12-10T09:11:37Z", "ms": 2175585097112.611 }, "end": { "local": "2038-12-10T18:59:22+08:00", "utc": "2038-12-10T10:59:22Z", "ms": 2175591562485.8975 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2038-12-11", "window": { "start": { "local": "2038-12-11T17:11:53+08:00", "utc": "2038-12-11T09:11:53Z", "ms": 2175671512662.137 }, "end": { "local": "2038-12-11T18:59:41+08:00", "utc": "2038-12-11T10:59:41Z", "ms": 2175677981124.617 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:14 on Fri 10 Dec to 01:30 on Sun 12 Dec.", "fact": "2038-12-10T15:13:37Z → 2038-12-11T17:30:28Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:12–18:59 on the 10th, 17:12–19:00 on the 11th.", "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 108 minutes on the 10th and 108 of 108 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15255 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Fuzhou, 2038: Saturday 11 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": "2038-12-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Dattātreyotpatti (Datta Jayanti) 2038 falls on Saturday 11 December. Pūrṇimā runs from 23:14 on Fri 10 Dec to 01:30 on Sun 12 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/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/2038/sankashta-chaturthi?on=2038-12-15", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38574, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-12-15T06:19:37+08:00", "utc": "2038-12-14T22:19:37Z", "ms": 2175977976956.223 }, "end": { "local": "2038-12-16T07:04:18+08:00", "utc": "2038-12-15T23:04:18Z", "ms": 2176067057790.4143 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-15T06:19:37+08:00", "utc": "2038-12-14T22:19:37Z", "ms": 2175977976956.223 }, "end": { "local": "2038-12-16T07:04:18+08:00", "utc": "2038-12-15T23:04:18Z", "ms": 2176067057790.4143 } }, "kaala": "moonrise", "days": [ { "local_date": "2038-12-14", "window": { "start": { "local": "2038-12-14T19:25:14+08:00", "utc": "2038-12-14T11:25:14Z", "ms": 2175938713853.1785 }, "end": { "local": "2038-12-14T19:25:14+08:00", "utc": "2038-12-14T11:25:14Z", "ms": 2175938713853.1785 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2038-12-15", "window": { "start": { "local": "2038-12-15T20:21:24+08:00", "utc": "2038-12-15T12:21:24Z", "ms": 2176028483669.1912 }, "end": { "local": "2038-12-15T20:21:24+08:00", "utc": "2038-12-15T12:21:24Z", "ms": 2176028483669.1912 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:20 on Wed 15 Dec to 07:04 on Thu 16 Dec.", "fact": "2038-12-14T22:19:37Z → 2038-12-15T23:04:18Z" }, { "step": "kaala", "text": "Moonrise is at 19:25 on the 14th and 20:21 on the 15th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 14th and is on the 15th.", "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 38574 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2038: Wednesday 15 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": "2038-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2038 falls on Wednesday 15 December. Caturthī runs from 06:20 on Wed 15 Dec to 07:04 on Thu 16 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/sankashta-chaturthi?on=2038-12-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/ekadashi?on=2038-12-22", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23132, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2038-12-22T00:20:38+08:00", "utc": "2038-12-21T16:20:38Z", "ms": 2176561238063.6394 }, "end": { "local": "2038-12-22T21:33:16+08:00", "utc": "2038-12-22T13:33:16Z", "ms": 2176637595569.9172 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-22T00:20:38+08:00", "utc": "2038-12-21T16:20:38Z", "ms": 2176561238063.6394 }, "end": { "local": "2038-12-22T21:33:16+08:00", "utc": "2038-12-22T13:33:16Z", "ms": 2176637595569.9172 } }, "kaala": "sunrise", "days": [ { "local_date": "2038-12-22", "window": { "start": { "local": "2038-12-22T06:46:10+08:00", "utc": "2038-12-21T22:46:10Z", "ms": 2176584369580.9702 }, "end": { "local": "2038-12-22T06:46:10+08:00", "utc": "2038-12-21T22:46:10Z", "ms": 2176584369580.9702 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2038-12-23", "window": { "start": { "local": "2038-12-23T06:46:39+08:00", "utc": "2038-12-22T22:46:39Z", "ms": 2176670798752.9385 }, "end": { "local": "2038-12-23T06:46:39+08:00", "utc": "2038-12-22T22:46:39Z", "ms": 2176670798752.9385 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:21 on Wed 22 Dec to 21:33 on Wed 22 Dec.", "fact": "2038-12-21T16:20:38Z → 2038-12-22T13:33:16Z" }, { "step": "kaala", "text": "Sunrise is at 06:46 on the 22nd and 06:47 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 22nd and is not on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 23132 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Fuzhou, 2038: Wednesday 22 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2038-12-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Saphalā Ekādaśī 2038 falls on Wednesday 22 December. Ekādaśī runs from 00:21 on Wed 22 Dec to 21:33 on Wed 22 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2038/ekadashi?on=2038-12-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/pradosha-vrata?on=2038-12-23", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2103, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2038-12-23T18:29:44+08:00", "utc": "2038-12-23T10:29:44Z", "ms": 2176712984377.741 }, "end": { "local": "2038-12-24T15:17:41+08:00", "utc": "2038-12-24T07:17:41Z", "ms": 2176787860519.2307 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-23T18:29:44+08:00", "utc": "2038-12-23T10:29:44Z", "ms": 2176712984377.741 }, "end": { "local": "2038-12-24T15:17:41+08:00", "utc": "2038-12-24T07:17:41Z", "ms": 2176787860519.2307 } }, "kaala": "pradosha", "days": [ { "local_date": "2038-12-23", "window": { "start": { "local": "2038-12-23T17:16:44+08:00", "utc": "2038-12-23T09:16:44Z", "ms": 2176708604013.6165 }, "end": { "local": "2038-12-23T19:04:47+08:00", "utc": "2038-12-23T11:04:47Z", "ms": 2176715087056.7856 } }, "covered_min": 35, "window_min": 108, "qualifies": true }, { "local_date": "2038-12-24", "window": { "start": { "local": "2038-12-24T17:17:16+08:00", "utc": "2038-12-24T09:17:16Z", "ms": 2176795036220.075 }, "end": { "local": "2038-12-24T19:05:19+08:00", "utc": "2038-12-24T11:05:19Z", "ms": 2176801518563.618 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:30 on Thu 23 Dec to 15:18 on Fri 24 Dec.", "fact": "2038-12-23T10:29:44Z → 2038-12-24T07:17:41Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:17–19:05 on the 23rd, 17:17–19:05 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 35 of 108 minutes on the 23rd and 0 of 108 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2103 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2038: Thursday 23 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": "2038-12-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-23", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2038 falls on Thursday 23 December. Trayodaśī runs from 18:30 on Thu 23 Dec to 15:18 on Fri 24 Dec and covers 35 of 108 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2038/pradosha-vrata?on=2038-12-23", "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/2038/shivaratri?on=2038-12-24", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30044, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2038-12-24T15:17:41+08:00", "utc": "2038-12-24T07:17:41Z", "ms": 2176787860519.2307 }, "end": { "local": "2038-12-25T12:05:28+08:00", "utc": "2038-12-25T04:05:28Z", "ms": 2176862728020.1436 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-24T15:17:41+08:00", "utc": "2038-12-24T07:17:41Z", "ms": 2176787860519.2307 }, "end": { "local": "2038-12-25T12:05:28+08:00", "utc": "2038-12-25T04:05:28Z", "ms": 2176862728020.1436 } }, "kaala": "nishita", "days": [ { "local_date": "2038-12-24", "window": { "start": { "local": "2038-12-24T23:38:25+08:00", "utc": "2038-12-24T15:38:25Z", "ms": 2176817905008.3608 }, "end": { "local": "2038-12-25T00:26:25+08:00", "utc": "2038-12-24T16:26:25Z", "ms": 2176820785008.3608 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-12-25", "window": { "start": { "local": "2038-12-25T23:38:55+08:00", "utc": "2038-12-25T15:38:55Z", "ms": 2176904334538.9443 }, "end": { "local": "2038-12-26T00:26:55+08:00", "utc": "2038-12-25T16:26:55Z", "ms": 2176907214538.9443 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:18 on Fri 24 Dec to 12:05 on Sat 25 Dec.", "fact": "2038-12-24T07:17:41Z → 2038-12-25T04:05:28Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:38–00:26 on the 24th, 23:39–00:27 on the 25th.", "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 24th and 0 of 48 on the 25th.", "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 30044 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2038: Friday 24 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": "2038-12-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2038 falls on Friday 24 December. Caturdaśī runs from 15:18 on Fri 24 Dec to 12:05 on Sat 25 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2038/shivaratri?on=2038-12-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-12-29", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2038, "local_date": "2038-12-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34020, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2038-12-29T02:13:40+08:00", "utc": "2038-12-28T18:13:40Z", "ms": 2177172820453.9836 }, "end": { "local": "2038-12-30T01:11:27+08:00", "utc": "2038-12-29T17:11:27Z", "ms": 2177255487039.317 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2038-12-29T02:13:40+08:00", "utc": "2038-12-28T18:13:40Z", "ms": 2177172820453.9836 }, "end": { "local": "2038-12-30T01:11:27+08:00", "utc": "2038-12-29T17:11:27Z", "ms": 2177255487039.317 } }, "kaala": "madhyahna", "days": [ { "local_date": "2038-12-29", "window": { "start": { "local": "2038-12-29T11:40:41+08:00", "utc": "2038-12-29T03:40:41Z", "ms": 2177206840951.3079 }, "end": { "local": "2038-12-29T12:28:41+08:00", "utc": "2038-12-29T04:28:41Z", "ms": 2177209720951.3079 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2038-12-30", "window": { "start": { "local": "2038-12-30T11:41:10+08:00", "utc": "2038-12-30T03:41:10Z", "ms": 2177293270299.5625 }, "end": { "local": "2038-12-30T12:29:10+08:00", "utc": "2038-12-30T04:29:10Z", "ms": 2177296150299.5625 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:14 on Wed 29 Dec to 01:11 on Thu 30 Dec.", "fact": "2038-12-28T18:13:40Z → 2038-12-29T17:11:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 29th, 11:41–12:29 on the 30th.", "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 29th and 0 of 48 on the 30th.", "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 34020 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2038: Wednesday 29 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": "2038-12-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2038-12-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2038 falls on Wednesday 29 December. Caturthī runs from 02:14 on Wed 29 Dec to 01:11 on Thu 30 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2038/vinayaka-chaturthi?on=2038-12-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } } ], "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }