{ "id": "/fuzhou/festivals/2080", "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": 2080, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/fuzhou/festivals/2080/ekadashi?on=2080-01-03", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16755, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-01-03T02:11:32+08:00", "utc": "2080-01-02T18:11:32Z", "ms": 3471444691758.9756 }, "end": { "local": "2080-01-03T23:54:18+08:00", "utc": "2080-01-03T15:54:18Z", "ms": 3471522858340.4893 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-01-03T02:11:32+08:00", "utc": "2080-01-02T18:11:32Z", "ms": 3471444691758.9756 }, "end": { "local": "2080-01-03T23:54:18+08:00", "utc": "2080-01-03T15:54:18Z", "ms": 3471522858340.4893 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-01-03", "window": { "start": { "local": "2080-01-03T06:50:47+08:00", "utc": "2080-01-02T22:50:47Z", "ms": 3471461447242.6567 }, "end": { "local": "2080-01-03T06:50:47+08:00", "utc": "2080-01-02T22:50:47Z", "ms": 3471461447242.6567 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-01-04", "window": { "start": { "local": "2080-01-04T06:51:01+08:00", "utc": "2080-01-03T22:51:01Z", "ms": 3471547861043.171 }, "end": { "local": "2080-01-04T06:51:01+08:00", "utc": "2080-01-03T22:51:01Z", "ms": 3471547861043.171 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:12 on Wed 3 Jan to 23:54 on Wed 3 Jan.", "fact": "2080-01-02T18:11:32Z → 2080-01-03T15:54:18Z" }, { "step": "kaala", "text": "Sunrise is at 06:51 on the 3rd and 06:51 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 16755 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Fuzhou, 2080: Wednesday 3 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-01-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Putradā Ekādaśī 2080 falls on Wednesday 3 January. Ekādaśī runs from 02:12 on Wed 3 Jan to 23:54 on Wed 3 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-01-03", "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/2080/pradosha-vrata?on=2080-01-05", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 323, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-01-04T20:57:44+08:00", "utc": "2080-01-04T12:57:44Z", "ms": 3471598664130.1733 }, "end": { "local": "2080-01-05T17:30:26+08:00", "utc": "2080-01-05T09:30:26Z", "ms": 3471672625513.4517 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-01-04T20:57:44+08:00", "utc": "2080-01-04T12:57:44Z", "ms": 3471598664130.1733 }, "end": { "local": "2080-01-05T17:30:26+08:00", "utc": "2080-01-05T09:30:26Z", "ms": 3471672625513.4517 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-01-04", "window": { "start": { "local": "2080-01-04T17:24:20+08:00", "utc": "2080-01-04T09:24:20Z", "ms": 3471585860314.2417 }, "end": { "local": "2080-01-04T19:11:55+08:00", "utc": "2080-01-04T11:11:55Z", "ms": 3471592315394.3374 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2080-01-05", "window": { "start": { "local": "2080-01-05T17:25:02+08:00", "utc": "2080-01-05T09:25:02Z", "ms": 3471672302400.305 }, "end": { "local": "2080-01-05T19:12:33+08:00", "utc": "2080-01-05T11:12:33Z", "ms": 3471678753326.4785 } }, "covered_min": 5, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:58 on Thu 4 Jan to 17:30 on Fri 5 Jan.", "fact": "2080-01-04T12:57:44Z → 2080-01-05T09:30:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:24–19:12 on the 4th, 17:25–19:13 on the 5th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 108 minutes on the 4th and 5 of 108 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 323 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Friday 5 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": "2080-01-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Friday 5 January. Trayodaśī runs from 20:58 on Thu 4 Jan to 17:30 on Fri 5 Jan and covers 5 of 108 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-01-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-01-09", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-09", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 2570, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-01-09T23:01:18+08:00", "utc": "2080-01-09T15:01:18Z", "ms": 3472038077917.8906 }, "end": { "local": "2080-01-10T20:25:36+08:00", "utc": "2080-01-10T12:25:36Z", "ms": 3472115135543.2 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-01-09T23:01:18+08:00", "utc": "2080-01-09T15:01:18Z", "ms": 3472038077917.8906 }, "end": { "local": "2080-01-10T20:25:36+08:00", "utc": "2080-01-10T12:25:36Z", "ms": 3472115135543.2 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-01-09", "window": { "start": { "local": "2080-01-09T20:02:29+08:00", "utc": "2080-01-09T12:02:29Z", "ms": 3472027348932.2666 }, "end": { "local": "2080-01-09T20:02:29+08:00", "utc": "2080-01-09T12:02:29Z", "ms": 3472027348932.2666 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-01-10", "window": { "start": { "local": "2080-01-10T21:08:26+08:00", "utc": "2080-01-10T13:08:26Z", "ms": 3472117705964.004 }, "end": { "local": "2080-01-10T21:08:26+08:00", "utc": "2080-01-10T13:08:26Z", "ms": 3472117705964.004 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:01 on Tue 9 Jan to 20:26 on Wed 10 Jan.", "fact": "2080-01-09T15:01:18Z → 2080-01-10T12:25:36Z" }, { "step": "kaala", "text": "Moonrise is at 20:02 on the 9th and 21:08 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 9th and is not on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: unstated → tithi-day · margin 2570 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Tuesday 9 January.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-01-09", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-09", "confidence": "boundary" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Tuesday 9 January. Caturthī runs from 23:01 on Tue 9 Jan to 20:26 on Wed 10 Jan, and is current at moonrise on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-01-09", "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/2080/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12889, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 }, "end": { "local": "2080-02-14T02:53:21+08:00", "utc": "2080-02-13T18:53:21Z", "ms": 3475076001255.174 } }, "span": { "of": "transit", "start": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 }, "end": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 } }, "kaala": "sunset-day", "days": [ { "local_date": "2080-01-15", "window": { "start": { "local": "2080-01-14T17:31:42+08:00", "utc": "2080-01-14T09:31:42Z", "ms": 3472450302093.8237 }, "end": { "local": "2080-01-15T17:32:28+08:00", "utc": "2080-01-15T09:32:28Z", "ms": 3472536748178.4717 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2080-01-16", "window": { "start": { "local": "2080-01-15T17:32:28+08:00", "utc": "2080-01-15T09:32:28Z", "ms": 3472536748178.4717 }, "end": { "local": "2080-01-16T17:33:14+08:00", "utc": "2080-01-16T09:33:14Z", "ms": 3472623194461.518 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2080-01-15", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 13:58 on Mon 15 Jan.", "fact": "2080-01-15T05:57:39Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 15th ends at 17:32, and the day of the 16th 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 12889 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Monday 15 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Fuzhou, 2080: Sunday 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": "2080-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2080-01-14", "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": "2080-01-14", "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, Bhogi 2080 falls on Sunday 14 January. It is kept the day before Pongal, which falls on Monday 15 January. The Sun enters Makara at 13:58 on Mon 15 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12889, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 }, "end": { "local": "2080-02-14T02:53:21+08:00", "utc": "2080-02-13T18:53:21Z", "ms": 3475076001255.174 } }, "span": { "of": "transit", "start": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 }, "end": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 } }, "kaala": "sunset-day", "days": [ { "local_date": "2080-01-15", "window": { "start": { "local": "2080-01-14T17:31:42+08:00", "utc": "2080-01-14T09:31:42Z", "ms": 3472450302093.8237 }, "end": { "local": "2080-01-15T17:32:28+08:00", "utc": "2080-01-15T09:32:28Z", "ms": 3472536748178.4717 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2080-01-16", "window": { "start": { "local": "2080-01-15T17:32:28+08:00", "utc": "2080-01-15T09:32:28Z", "ms": 3472536748178.4717 }, "end": { "local": "2080-01-16T17:33:14+08:00", "utc": "2080-01-16T09:33:14Z", "ms": 3472623194461.518 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 13:58 on Mon 15 Jan.", "fact": "2080-01-15T05:57:39Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 15th ends at 17:32, and the day of the 16th 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 12889 s" }, { "step": "ruling", "text": "Pongal, Fuzhou, 2080: Monday 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": "2080-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2080-01-15", "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": "2080-01-15", "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, Pongal 2080 falls on Monday 15 January. The Sun enters Makara at 13:58 on Mon 15 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36141, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 }, "end": { "local": "2080-02-14T02:53:21+08:00", "utc": "2080-02-13T18:53:21Z", "ms": 3475076001255.174 } }, "span": { "of": "transit", "start": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 }, "end": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 } }, "kaala": "civil-day", "days": [ { "local_date": "2080-01-15", "window": { "start": { "local": "2080-01-15T00:00:00+08:00", "utc": "2080-01-14T16:00:00Z", "ms": 3472473600000 }, "end": { "local": "2080-01-16T00:00:00+08:00", "utc": "2080-01-15T16:00:00Z", "ms": 3472560000000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "2080-01-16", "window": { "start": { "local": "2080-01-16T00:00:00+08:00", "utc": "2080-01-15T16:00:00Z", "ms": 3472560000000 }, "end": { "local": "2080-01-17T00:00:00+08:00", "utc": "2080-01-16T16:00:00Z", "ms": 3472646400000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 13:58 on Mon 15 Jan.", "fact": "2080-01-15T05:57:39Z · 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 15th, not the 16th.", "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 36141 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Fuzhou, 2080: Monday 15 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": "2080-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "2080-01-15", "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." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "2080-01-15", "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 2080 falls on Monday 15 January. The Sun enters Makara at 13:58 on Mon 15 Jan, and the rule counts the day from midnight.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12889, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 }, "end": { "local": "2080-02-14T02:53:21+08:00", "utc": "2080-02-13T18:53:21Z", "ms": 3475076001255.174 } }, "span": { "of": "transit", "start": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 }, "end": { "local": "2080-01-15T13:57:39+08:00", "utc": "2080-01-15T05:57:39Z", "ms": 3472523858786.0073 } }, "kaala": "sunset-day", "days": [ { "local_date": "2080-01-15", "window": { "start": { "local": "2080-01-14T17:31:42+08:00", "utc": "2080-01-14T09:31:42Z", "ms": 3472450302093.8237 }, "end": { "local": "2080-01-15T17:32:28+08:00", "utc": "2080-01-15T09:32:28Z", "ms": 3472536748178.4717 } }, "covered_min": 1, "window_min": 1441, "qualifies": true }, { "local_date": "2080-01-16", "window": { "start": { "local": "2080-01-15T17:32:28+08:00", "utc": "2080-01-15T09:32:28Z", "ms": 3472536748178.4717 }, "end": { "local": "2080-01-16T17:33:14+08:00", "utc": "2080-01-16T09:33:14Z", "ms": 3472623194461.518 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "2080-01-15", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 13:58 on Mon 15 Jan.", "fact": "2080-01-15T05:57:39Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 15th ends at 17:32, and the day of the 16th 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 12889 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Monday 15 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Fuzhou, 2080: Tuesday 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": "2080-01-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-16", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2080-01-16", "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": "2080-01-16", "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 2080 falls on Tuesday 16 January. It is kept the day after Pongal, which falls on Monday 15 January. The Sun enters Makara at 13:58 on Mon 15 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 14th and the 15th.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-01-17", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25202, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-01-16T21:30:42+08:00", "utc": "2080-01-16T13:30:42Z", "ms": 3472637442047.736 }, "end": { "local": "2080-01-17T23:51:38+08:00", "utc": "2080-01-17T15:51:38Z", "ms": 3472732298309.49 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-01-16T21:30:42+08:00", "utc": "2080-01-16T13:30:42Z", "ms": 3472637442047.736 }, "end": { "local": "2080-01-17T23:51:38+08:00", "utc": "2080-01-17T15:51:38Z", "ms": 3472732298309.49 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-01-17", "window": { "start": { "local": "2080-01-17T06:51:48+08:00", "utc": "2080-01-16T22:51:48Z", "ms": 3472671107549.9907 }, "end": { "local": "2080-01-17T06:51:48+08:00", "utc": "2080-01-16T22:51:48Z", "ms": 3472671107549.9907 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-01-18", "window": { "start": { "local": "2080-01-18T06:51:41+08:00", "utc": "2080-01-17T22:51:41Z", "ms": 3472757500719.996 }, "end": { "local": "2080-01-18T06:51:41+08:00", "utc": "2080-01-17T22:51:41Z", "ms": 3472757500719.996 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:31 on Tue 16 Jan to 23:52 on Wed 17 Jan.", "fact": "2080-01-16T13:30:42Z → 2080-01-17T15:51:38Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 17th and 06:52 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 25202 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Fuzhou, 2080: Wednesday 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": "2080-01-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Ṣaṭtilā Ekādaśī 2080 falls on Wednesday 17 January. Ekādaśī runs from 21:31 on Tue 16 Jan to 23:52 on Wed 17 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-01-17", "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/2080/pradosha-vrata?on=2080-01-19", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25412, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-01-19T02:24:33+08:00", "utc": "2080-01-18T18:24:33Z", "ms": 3472827873463.836 }, "end": { "local": "2080-01-20T05:00:30+08:00", "utc": "2080-01-19T21:00:30Z", "ms": 3472923629676.38 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-01-19T02:24:33+08:00", "utc": "2080-01-18T18:24:33Z", "ms": 3472827873463.836 }, "end": { "local": "2080-01-20T05:00:30+08:00", "utc": "2080-01-19T21:00:30Z", "ms": 3472923629676.38 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-01-18", "window": { "start": { "local": "2080-01-18T17:34:47+08:00", "utc": "2080-01-18T09:34:47Z", "ms": 3472796087470.8794 }, "end": { "local": "2080-01-18T19:21:01+08:00", "utc": "2080-01-18T11:21:01Z", "ms": 3472802461460.382 } }, "covered_min": 0, "window_min": 106, "qualifies": false }, { "local_date": "2080-01-19", "window": { "start": { "local": "2080-01-19T17:35:34+08:00", "utc": "2080-01-19T09:35:34Z", "ms": 3472882534122.1704 }, "end": { "local": "2080-01-19T19:21:41+08:00", "utc": "2080-01-19T11:21:41Z", "ms": 3472888900581.5723 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:25 on Fri 19 Jan to 05:00 on Sat 20 Jan.", "fact": "2080-01-18T18:24:33Z → 2080-01-19T21:00:30Z" }, { "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 0 of 106 minutes on the 18th and 106 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 25412 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Friday 19 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": "2080-01-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Friday 19 January. Trayodaśī runs from 02:25 on Fri 19 Jan to 05:00 on Sat 20 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-01-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-20", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 286, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-01-20T05:00:30+08:00", "utc": "2080-01-19T21:00:30Z", "ms": 3472923629676.38 }, "end": { "local": "2080-01-21T07:32:46+08:00", "utc": "2080-01-20T23:32:46Z", "ms": 3473019166385.6494 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-01-20T05:00:30+08:00", "utc": "2080-01-19T21:00:30Z", "ms": 3472923629676.38 }, "end": { "local": "2080-01-21T07:32:46+08:00", "utc": "2080-01-20T23:32:46Z", "ms": 3473019166385.6494 } }, "kaala": "arunodaya", "days": [ { "local_date": "2080-01-20", "window": { "start": { "local": "2080-01-20T05:05:16+08:00", "utc": "2080-01-19T21:05:16Z", "ms": 3472923916108.2812 }, "end": { "local": "2080-01-20T06:51:23+08:00", "utc": "2080-01-19T22:51:23Z", "ms": 3472930282567.683 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "2080-01-21", "window": { "start": { "local": "2080-01-21T05:05:13+08:00", "utc": "2080-01-20T21:05:13Z", "ms": 3473010312525.646 }, "end": { "local": "2080-01-21T06:51:11+08:00", "utc": "2080-01-20T22:51:11Z", "ms": 3473016671249.2666 } }, "covered_min": 106, "window_min": 106, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:00 on Sat 20 Jan to 07:33 on Sun 21 Jan.", "fact": "2080-01-19T21:00:30Z → 2080-01-20T23:32:46Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:05–06:51 on the 20th, 05:05–06:51 on the 21st.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 106 of 106 minutes on the 20th and 106 of 106 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both dawns qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 286 s < 300 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Fuzhou, 2080: Saturday 20 January.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-01-20", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-20", "confidence": "boundary" } ], "quote": "In Fuzhou, Yama Tarpaṇa 2080 falls on Saturday 20 January. Caturdaśī runs from 05:00 on Sat 20 Jan to 07:33 on Sun 21 Jan and covers all of aruṇodaya that dawn. It also reaches the next dawn for 106 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 4 min 46 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/shivaratri?on=2080-01-20", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15781, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-01-20T05:00:30+08:00", "utc": "2080-01-19T21:00:30Z", "ms": 3472923629676.38 }, "end": { "local": "2080-01-21T07:32:46+08:00", "utc": "2080-01-20T23:32:46Z", "ms": 3473019166385.6494 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-01-20T05:00:30+08:00", "utc": "2080-01-19T21:00:30Z", "ms": 3472923629676.38 }, "end": { "local": "2080-01-21T07:32:46+08:00", "utc": "2080-01-20T23:32:46Z", "ms": 3473019166385.6494 } }, "kaala": "nishita", "days": [ { "local_date": "2080-01-19", "window": { "start": { "local": "2080-01-19T23:49:28+08:00", "utc": "2080-01-19T15:49:28Z", "ms": 3472904968344.927 }, "end": { "local": "2080-01-20T00:37:28+08:00", "utc": "2080-01-19T16:37:28Z", "ms": 3472907848344.927 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-01-20", "window": { "start": { "local": "2080-01-20T23:49:46+08:00", "utc": "2080-01-20T15:49:46Z", "ms": 3472991386035.6895 }, "end": { "local": "2080-01-21T00:37:46+08:00", "utc": "2080-01-20T16:37:46Z", "ms": 3472994266035.6895 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 05:00 on Sat 20 Jan to 07:33 on Sun 21 Jan.", "fact": "2080-01-19T21:00:30Z → 2080-01-20T23:32:46Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:49–00:37 on the 19th, 23:50–00:38 on the 20th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15781 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Saturday 20 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": "2080-01-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Saturday 20 January. Caturdaśī runs from 05:00 on Sat 20 Jan to 07:33 on Sun 21 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-01-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2029, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-01-25T15:48:19+08:00", "utc": "2080-01-25T07:48:19Z", "ms": 3473394499221.2246 }, "end": { "local": "2080-01-26T17:07:11+08:00", "utc": "2080-01-26T09:07:11Z", "ms": 3473485631338.5933 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-01-25T15:48:19+08:00", "utc": "2080-01-25T07:48:19Z", "ms": 3473394499221.2246 }, "end": { "local": "2080-01-26T17:07:11+08:00", "utc": "2080-01-26T09:07:11Z", "ms": 3473485631338.5933 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-01-25", "window": { "start": { "local": "2080-01-25T17:40:14+08:00", "utc": "2080-01-25T09:40:14Z", "ms": 3473401213827.4688 }, "end": { "local": "2080-01-25T19:25:31+08:00", "utc": "2080-01-25T11:25:31Z", "ms": 3473407530972.64 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "2080-01-26", "window": { "start": { "local": "2080-01-26T17:41:00+08:00", "utc": "2080-01-26T09:41:00Z", "ms": 3473487660100.0454 }, "end": { "local": "2080-01-26T19:26:08+08:00", "utc": "2080-01-26T11:26:08Z", "ms": 3473493968387.016 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:48 on Thu 25 Jan to 17:07 on Fri 26 Jan.", "fact": "2080-01-25T07:48:19Z → 2080-01-26T09:07:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:40–19:26 on the 25th, 17:41–19:26 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 105 of 105 minutes on the 25th and 0 of 105 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 2029 s" }, { "step": "ruling", "text": "Tila Caturthī, Fuzhou, 2080: Thursday 25 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "tila-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-01-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Tila Caturthī 2080 falls on Thursday 25 January. Caturthī runs from 15:48 on Thu 25 Jan to 17:07 on Fri 26 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11347, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-01-25T15:48:19+08:00", "utc": "2080-01-25T07:48:19Z", "ms": 3473394499221.2246 }, "end": { "local": "2080-01-26T17:07:11+08:00", "utc": "2080-01-26T09:07:11Z", "ms": 3473485631338.5933 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-01-25T15:48:19+08:00", "utc": "2080-01-25T07:48:19Z", "ms": 3473394499221.2246 }, "end": { "local": "2080-01-26T17:07:11+08:00", "utc": "2080-01-26T09:07:11Z", "ms": 3473485631338.5933 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-01-25", "window": { "start": { "local": "2080-01-25T11:51:12+08:00", "utc": "2080-01-25T03:51:12Z", "ms": 3473380272476.876 }, "end": { "local": "2080-01-25T12:39:12+08:00", "utc": "2080-01-25T04:39:12Z", "ms": 3473383152476.876 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-01-26", "window": { "start": { "local": "2080-01-26T11:51:26+08:00", "utc": "2080-01-26T03:51:26Z", "ms": 3473466686258.15 }, "end": { "local": "2080-01-26T12:39:26+08:00", "utc": "2080-01-26T04:39:26Z", "ms": 3473469566258.15 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:48 on Thu 25 Jan to 17:07 on Fri 26 Jan.", "fact": "2080-01-25T07:48:19Z → 2080-01-26T09:07:11Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 25th, 11:51–12:39 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11347 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Fuzhou, 2080: Friday 26 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ganesha-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Tila caturthi and Kunda caturthi (pradosavyapini), Varada caturthi (Bengal & Orissa), Ganesa caturthi, Ganesa jayanti (madhyahnavyapini purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-01-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 2080 falls on Friday 26 January. Caturthī runs from 15:48 on Thu 25 Jan to 17:07 on Fri 26 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16065, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2080-01-26T17:07:11+08:00", "utc": "2080-01-26T09:07:11Z", "ms": 3473485631338.5933 }, "end": { "local": "2080-01-27T17:59:10+08:00", "utc": "2080-01-27T09:59:10Z", "ms": 3473575149718.7446 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-01-26T17:07:11+08:00", "utc": "2080-01-26T09:07:11Z", "ms": 3473485631338.5933 }, "end": { "local": "2080-01-27T17:59:10+08:00", "utc": "2080-01-27T09:59:10Z", "ms": 3473575149718.7446 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-01-26", "window": { "start": { "local": "2080-01-26T11:51:26+08:00", "utc": "2080-01-26T03:51:26Z", "ms": 3473466686258.15 }, "end": { "local": "2080-01-26T12:39:26+08:00", "utc": "2080-01-26T04:39:26Z", "ms": 3473469566258.15 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-01-27", "window": { "start": { "local": "2080-01-27T11:51:39+08:00", "utc": "2080-01-27T03:51:39Z", "ms": 3473553099222.552 }, "end": { "local": "2080-01-27T12:39:39+08:00", "utc": "2080-01-27T04:39:39Z", "ms": 3473555979222.552 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 17:07 on Fri 26 Jan to 17:59 on Sat 27 Jan.", "fact": "2080-01-26T09:07:11Z → 2080-01-27T09:59:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 26th, 11:52–12:40 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 16065 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Fuzhou, 2080: Saturday 27 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-01-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Śrī Pañcamī 2080 falls on Saturday 27 January. Pañcamī runs from 17:07 on Fri 26 Jan to 17:59 on Sat 27 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16065, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2080-01-26T17:07:11+08:00", "utc": "2080-01-26T09:07:11Z", "ms": 3473485631338.5933 }, "end": { "local": "2080-01-27T17:59:10+08:00", "utc": "2080-01-27T09:59:10Z", "ms": 3473575149718.7446 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-01-26T17:07:11+08:00", "utc": "2080-01-26T09:07:11Z", "ms": 3473485631338.5933 }, "end": { "local": "2080-01-27T17:59:10+08:00", "utc": "2080-01-27T09:59:10Z", "ms": 3473575149718.7446 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-01-26", "window": { "start": { "local": "2080-01-26T11:51:26+08:00", "utc": "2080-01-26T03:51:26Z", "ms": 3473466686258.15 }, "end": { "local": "2080-01-26T12:39:26+08:00", "utc": "2080-01-26T04:39:26Z", "ms": 3473469566258.15 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-01-27", "window": { "start": { "local": "2080-01-27T11:51:39+08:00", "utc": "2080-01-27T03:51:39Z", "ms": 3473553099222.552 }, "end": { "local": "2080-01-27T12:39:39+08:00", "utc": "2080-01-27T04:39:39Z", "ms": 3473555979222.552 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 17:07 on Fri 26 Jan to 17:59 on Sat 27 Jan.", "fact": "2080-01-26T09:07:11Z → 2080-01-27T09:59:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 26th, 11:52–12:40 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16065 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Fuzhou, 2080: Saturday 27 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasanta-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-01-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Vasanta Pañcamī 2080 falls on Saturday 27 January. Pañcamī runs from 17:07 on Fri 26 Jan to 17:59 on Sat 27 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38706, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2080-01-28T18:18:52+08:00", "utc": "2080-01-28T10:18:52Z", "ms": 3473662731729.661 }, "end": { "local": "2080-01-29T18:01:35+08:00", "utc": "2080-01-29T10:01:35Z", "ms": 3473748095085.957 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-01-28T18:18:52+08:00", "utc": "2080-01-28T10:18:52Z", "ms": 3473662731729.661 }, "end": { "local": "2080-01-29T18:01:35+08:00", "utc": "2080-01-29T10:01:35Z", "ms": 3473748095085.957 } }, "kaala": "arunodaya", "days": [ { "local_date": "2080-01-29", "window": { "start": { "local": "2080-01-29T05:03:58+08:00", "utc": "2080-01-28T21:03:58Z", "ms": 3473701437539.2236 }, "end": { "local": "2080-01-29T06:48:48+08:00", "utc": "2080-01-28T22:48:48Z", "ms": 3473707727610.085 } }, "covered_min": 105, "window_min": 105, "qualifies": true }, { "local_date": "2080-01-30", "window": { "start": { "local": "2080-01-30T05:03:42+08:00", "utc": "2080-01-29T21:03:42Z", "ms": 3473787822435.852 }, "end": { "local": "2080-01-30T06:48:23+08:00", "utc": "2080-01-29T22:48:23Z", "ms": 3473794103159.4736 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 18:19 on Sun 28 Jan to 18:02 on Mon 29 Jan.", "fact": "2080-01-28T10:18:52Z → 2080-01-29T10:01:35Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:04–06:49 on the 29th, 05:04–06:48 on the 30th.", "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 105 of 105 minutes on the 29th and 0 of 105 on the 30th.", "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 38706 s" }, { "step": "ruling", "text": "Ratha Saptamī, Fuzhou, 2080: Monday 29 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ratha-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Ratha saptami (covering 4 ghatikas before sunrise), Acala saptami, Vidhana saptami, Arogya saptami [purvaviddha]." } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-01-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Ratha Saptamī 2080 falls on Monday 29 January. Saptamī runs from 18:19 on Sun 28 Jan to 18:02 on Mon 29 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-02-02", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-02-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12863, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-02-01T13:10:34+08:00", "utc": "2080-02-01T05:10:34Z", "ms": 3473989834284.1553 }, "end": { "local": "2080-02-02T10:21:24+08:00", "utc": "2080-02-02T02:21:24Z", "ms": 3474066084007.5693 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-02-01T13:10:34+08:00", "utc": "2080-02-01T05:10:34Z", "ms": 3473989834284.1553 }, "end": { "local": "2080-02-02T10:21:24+08:00", "utc": "2080-02-02T02:21:24Z", "ms": 3474066084007.5693 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-02-01", "window": { "start": { "local": "2080-02-01T06:47:30+08:00", "utc": "2080-01-31T22:47:30Z", "ms": 3473966850081.589 }, "end": { "local": "2080-02-01T06:47:30+08:00", "utc": "2080-01-31T22:47:30Z", "ms": 3473966850081.589 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-02-02", "window": { "start": { "local": "2080-02-02T06:47:01+08:00", "utc": "2080-02-01T22:47:01Z", "ms": 3474053221492.7183 }, "end": { "local": "2080-02-02T06:47:01+08:00", "utc": "2080-02-01T22:47:01Z", "ms": 3474053221492.7183 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:11 on Thu 1 Feb to 10:21 on Fri 2 Feb.", "fact": "2080-02-01T05:10:34Z → 2080-02-02T02:21:24Z" }, { "step": "kaala", "text": "Sunrise is at 06:48 on the 1st and 06:47 on the 2nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 1st and is on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12863 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Fuzhou, 2080: Friday 2 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": "2080-02-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-02-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Jayā Ekādaśī 2080 falls on Friday 2 February. Ekādaśī runs from 13:11 on Thu 1 Feb to 10:21 on Fri 2 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-02-02", "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/2080/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-02-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5476, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2080-02-02T10:21:24+08:00", "utc": "2080-02-02T02:21:24Z", "ms": 3474066084007.5693 }, "end": { "local": "2080-02-03T07:06:23+08:00", "utc": "2080-02-02T23:06:23Z", "ms": 3474140783020.69 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-02-02T10:21:24+08:00", "utc": "2080-02-02T02:21:24Z", "ms": 3474066084007.5693 }, "end": { "local": "2080-02-03T07:06:23+08:00", "utc": "2080-02-02T23:06:23Z", "ms": 3474140783020.69 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-02-02", "window": { "start": { "local": "2080-02-02T11:52:40+08:00", "utc": "2080-02-02T03:52:40Z", "ms": 3474071559541.6973 }, "end": { "local": "2080-02-02T12:40:40+08:00", "utc": "2080-02-02T04:40:40Z", "ms": 3474074439541.6973 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-02-03", "window": { "start": { "local": "2080-02-03T11:52:47+08:00", "utc": "2080-02-03T03:52:47Z", "ms": 3474157966671.6157 }, "end": { "local": "2080-02-03T12:40:47+08:00", "utc": "2080-02-03T04:40:47Z", "ms": 3474160846671.6157 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 10:21 on Fri 2 Feb to 07:06 on Sat 3 Feb.", "fact": "2080-02-02T02:21:24Z → 2080-02-02T23:06:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 2nd, 11:53–12:41 on the 3rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 2nd and 0 of 48 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5476 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Fuzhou, 2080: Friday 2 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhishma-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-02-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-02-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Bhīṣma Dvādaśī 2080 falls on Friday 2 February. Dvādaśī runs from 10:21 on Fri 2 Feb to 07:06 on Sat 3 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/pradosha-vrata?on=2080-02-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-02-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29024, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-02-03T07:06:23+08:00", "utc": "2080-02-02T23:06:23Z", "ms": 3474140783020.69 }, "end": { "local": "2080-02-04T03:34:38+08:00", "utc": "2080-02-03T19:34:38Z", "ms": 3474214478065.792 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-02-03T07:06:23+08:00", "utc": "2080-02-02T23:06:23Z", "ms": 3474140783020.69 }, "end": { "local": "2080-02-04T03:34:38+08:00", "utc": "2080-02-03T19:34:38Z", "ms": 3474214478065.792 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-02-02", "window": { "start": { "local": "2080-02-02T17:46:18+08:00", "utc": "2080-02-02T09:46:18Z", "ms": 3474092777590.6763 }, "end": { "local": "2080-02-02T19:30:19+08:00", "utc": "2080-02-02T11:30:19Z", "ms": 3474099019454.0176 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "2080-02-03", "window": { "start": { "local": "2080-02-03T17:47:02+08:00", "utc": "2080-02-03T09:47:02Z", "ms": 3474179221777.496 }, "end": { "local": "2080-02-03T19:30:54+08:00", "utc": "2080-02-03T11:30:54Z", "ms": 3474185453583.6743 } }, "covered_min": 104, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 07:06 on Sat 3 Feb to 03:35 on Sun 4 Feb.", "fact": "2080-02-02T23:06:23Z → 2080-02-03T19:34:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:46–19:30 on the 2nd, 17:47–19:31 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 104 minutes on the 2nd and 104 of 104 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 29024 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Saturday 3 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-02-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-02-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Saturday 3 February. Trayodaśī runs from 07:06 on Sat 3 Feb to 03:35 on Sun 4 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-02-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-02-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27713, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-02-04T23:56:28+08:00", "utc": "2080-02-04T15:56:28Z", "ms": 3474287787973.3203 }, "end": { "local": "2080-02-05T20:22:52+08:00", "utc": "2080-02-05T12:22:52Z", "ms": 3474361371794.929 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "2080-02-04T23:56:28+08:00", "utc": "2080-02-04T15:56:28Z", "ms": 3474287787973.3203 }, "end": { "local": "2080-02-05T20:22:52+08:00", "utc": "2080-02-05T12:22:52Z", "ms": 3474361371794.929 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-02-04", "window": { "start": { "local": "2080-02-04T11:52:53+08:00", "utc": "2080-02-04T03:52:53Z", "ms": 3474244372975.2383 }, "end": { "local": "2080-02-04T12:40:53+08:00", "utc": "2080-02-04T04:40:53Z", "ms": 3474247252975.2383 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-02-05", "window": { "start": { "local": "2080-02-05T11:52:58+08:00", "utc": "2080-02-05T03:52:58Z", "ms": 3474330778460.282 }, "end": { "local": "2080-02-05T12:40:58+08:00", "utc": "2080-02-05T04:40:58Z", "ms": 3474333658460.282 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:56 on Sun 4 Feb to 20:23 on Mon 5 Feb.", "fact": "2080-02-04T15:56:28Z → 2080-02-05T12:22:52Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 4th, 11:53–12:41 on the 5th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27713 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Fuzhou, 2080: Monday 5 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maghi-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Maghi purnima (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-02-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-02-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Māghī Pūrṇimā 2080 falls on Monday 5 February. Pūrṇimā runs from 23:56 on Sun 4 Feb to 20:23 on Mon 5 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-02-08", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-02-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32052, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-02-08T11:58:24+08:00", "utc": "2080-02-08T03:58:24Z", "ms": 3474590304201.6084 }, "end": { "local": "2080-02-09T10:27:27+08:00", "utc": "2080-02-09T02:27:27Z", "ms": 3474671246809.653 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2080-02-08T11:58:24+08:00", "utc": "2080-02-08T03:58:24Z", "ms": 3474590304201.6084 }, "end": { "local": "2080-02-09T10:27:27+08:00", "utc": "2080-02-09T02:27:27Z", "ms": 3474671246809.653 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-02-08", "window": { "start": { "local": "2080-02-08T20:52:36+08:00", "utc": "2080-02-08T12:52:36Z", "ms": 3474622355983.785 }, "end": { "local": "2080-02-08T20:52:36+08:00", "utc": "2080-02-08T12:52:36Z", "ms": 3474622355983.785 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-02-09", "window": { "start": { "local": "2080-02-09T21:51:53+08:00", "utc": "2080-02-09T13:51:53Z", "ms": 3474712313338.6396 }, "end": { "local": "2080-02-09T21:51:53+08:00", "utc": "2080-02-09T13:51:53Z", "ms": 3474712313338.6396 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:58 on Thu 8 Feb to 10:27 on Fri 9 Feb.", "fact": "2080-02-08T03:58:24Z → 2080-02-09T02:27:27Z" }, { "step": "kaala", "text": "Moonrise is at 20:53 on the 8th and 21:52 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 8th and is not on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32052 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Thursday 8 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-02-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-02-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Thursday 8 February. Caturthī runs from 11:58 on Thu 8 Feb to 10:27 on Fri 9 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-02-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/ekadashi?on=2080-02-16", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-02-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38039, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-02-15T17:12:56+08:00", "utc": "2080-02-15T09:12:56Z", "ms": 3475213976017.175 }, "end": { "local": "2080-02-16T19:48:05+08:00", "utc": "2080-02-16T11:48:05Z", "ms": 3475309684945.816 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2080-02-15T17:12:56+08:00", "utc": "2080-02-15T09:12:56Z", "ms": 3475213976017.175 }, "end": { "local": "2080-02-16T19:48:05+08:00", "utc": "2080-02-16T11:48:05Z", "ms": 3475309684945.816 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-02-15", "window": { "start": { "local": "2080-02-15T06:38:57+08:00", "utc": "2080-02-14T22:38:57Z", "ms": 3475175936964.4604 }, "end": { "local": "2080-02-15T06:38:57+08:00", "utc": "2080-02-14T22:38:57Z", "ms": 3475175936964.4604 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-02-16", "window": { "start": { "local": "2080-02-16T06:38:12+08:00", "utc": "2080-02-15T22:38:12Z", "ms": 3475262291873.5073 }, "end": { "local": "2080-02-16T06:38:12+08:00", "utc": "2080-02-15T22:38:12Z", "ms": 3475262291873.5073 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:13 on Thu 15 Feb to 19:48 on Fri 16 Feb.", "fact": "2080-02-15T09:12:56Z → 2080-02-16T11:48:05Z" }, { "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 38039 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Fuzhou, 2080: Friday 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": "2080-02-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-02-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Vijayā Ekādaśī 2080 falls on Friday 16 February. Ekādaśī runs from 17:13 on Thu 15 Feb to 19:48 on Fri 16 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-02-16", "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/2080/pradosha-vrata?on=2080-02-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-02-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9623, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-02-17T22:18:25+08:00", "utc": "2080-02-17T14:18:25Z", "ms": 3475405104731.873 }, "end": { "local": "2080-02-19T00:35:46+08:00", "utc": "2080-02-18T16:35:46Z", "ms": 3475499745522.87 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2080-02-17T22:18:25+08:00", "utc": "2080-02-17T14:18:25Z", "ms": 3475405104731.873 }, "end": { "local": "2080-02-19T00:35:46+08:00", "utc": "2080-02-18T16:35:46Z", "ms": 3475499745522.87 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-02-17", "window": { "start": { "local": "2080-02-17T17:56:42+08:00", "utc": "2080-02-17T09:56:42Z", "ms": 3475389402139.3457 }, "end": { "local": "2080-02-17T19:38:02+08:00", "utc": "2080-02-17T11:38:02Z", "ms": 3475395481684.6787 } }, "covered_min": 0, "window_min": 101, "qualifies": false }, { "local_date": "2080-02-18", "window": { "start": { "local": "2080-02-18T17:57:21+08:00", "utc": "2080-02-18T09:57:21Z", "ms": 3475475840652.702 }, "end": { "local": "2080-02-18T19:38:29+08:00", "utc": "2080-02-18T11:38:29Z", "ms": 3475481908662.2495 } }, "covered_min": 101, "window_min": 101, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:18 on Sat 17 Feb to 00:36 on Mon 19 Feb.", "fact": "2080-02-17T14:18:25Z → 2080-02-18T16:35:46Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:57–19:38 on the 17th, 17:57–19:38 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 101 minutes on the 17th and 101 of 101 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9623 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Sunday 18 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": "2080-02-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-02-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Sunday 18 February. Trayodaśī runs from 22:18 on Sat 17 Feb to 00:36 on Mon 19 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-02-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-02-19", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-disputed" ], "boundary_margin_s": 290, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-02-19T00:35:46+08:00", "utc": "2080-02-18T16:35:46Z", "ms": 3475499745522.87 }, "end": { "local": "2080-02-20T02:34:48+08:00", "utc": "2080-02-19T18:34:48Z", "ms": 3475593288178.8804 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2080-02-19T00:35:46+08:00", "utc": "2080-02-18T16:35:46Z", "ms": 3475499745522.87 }, "end": { "local": "2080-02-20T02:34:48+08:00", "utc": "2080-02-19T18:34:48Z", "ms": 3475593288178.8804 } }, "kaala": "nishita", "days": [ { "local_date": "2080-02-18", "window": { "start": { "local": "2080-02-18T23:52:36+08:00", "utc": "2080-02-18T15:52:36Z", "ms": 3475497155688.504 }, "end": { "local": "2080-02-19T00:40:36+08:00", "utc": "2080-02-18T16:40:36Z", "ms": 3475500035688.504 } }, "covered_min": 5, "window_min": 48, "qualifies": true }, { "local_date": "2080-02-19", "window": { "start": { "local": "2080-02-19T23:52:30+08:00", "utc": "2080-02-19T15:52:30Z", "ms": 3475583550273.835 }, "end": { "local": "2080-02-20T00:40:30+08:00", "utc": "2080-02-19T16:40:30Z", "ms": 3475586430273.835 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 00:36 on Mon 19 Feb to 02:35 on Tue 20 Feb.", "fact": "2080-02-18T16:35:46Z → 2080-02-19T18:34:48Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:53–00:41 on the 18th, 23:53–00:41 on the 19th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 5 of 48 minutes on the 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both nights qualify and the cited authorities disagree. The one covered longer is ruled, as a boundary.", "fact": "priority: disputed → greater-coverage · margin 290 s < 300 s" }, { "step": "ruling", "text": "Mahāśivarātri, Fuzhou, 2080: Monday 19 February.", "fact": "confidence: boundary (margin, tie-break-disputed)" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-02-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-02-19", "confidence": "boundary" } ], "quote": "In Fuzhou, Mahāśivarātri 2080 falls on Monday 19 February. Caturdaśī runs from 00:36 on Mon 19 Feb to 02:35 on Tue 20 Feb and covers all of niśītha that night. It also reaches the previous night for 5 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 4 min 50 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vinayaka-chaturthi?on=2080-02-24", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-02-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18169, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-02-24T06:46:53+08:00", "utc": "2080-02-23T22:46:53Z", "ms": 3475954013476.253 }, "end": { "local": "2080-02-25T06:49:22+08:00", "utc": "2080-02-24T22:49:22Z", "ms": 3476040561980.6235 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2080-02-24T06:46:53+08:00", "utc": "2080-02-23T22:46:53Z", "ms": 3475954013476.253 }, "end": { "local": "2080-02-25T06:49:22+08:00", "utc": "2080-02-24T22:49:22Z", "ms": 3476040561980.6235 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-02-24", "window": { "start": { "local": "2080-02-24T11:52:20+08:00", "utc": "2080-02-24T03:52:20Z", "ms": 3475972340153.664 }, "end": { "local": "2080-02-24T12:40:20+08:00", "utc": "2080-02-24T04:40:20Z", "ms": 3475975220153.664 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-02-25", "window": { "start": { "local": "2080-02-25T11:52:11+08:00", "utc": "2080-02-25T03:52:11Z", "ms": 3476058731357.689 }, "end": { "local": "2080-02-25T12:40:11+08:00", "utc": "2080-02-25T04:40:11Z", "ms": 3476061611357.689 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:47 on Sat 24 Feb to 06:49 on Sun 25 Feb.", "fact": "2080-02-23T22:46:53Z → 2080-02-24T22:49:22Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 24th, 11:52–12:40 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "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 18169 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2080: Saturday 24 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-02-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-02-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2080 falls on Saturday 24 February. Caturthī runs from 06:47 on Sat 24 Feb to 06:49 on Sun 25 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-02-24", "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/2080/ekadashi?on=2080-03-02", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31240, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-03-01T21:44:30+08:00", "utc": "2080-03-01T13:44:30Z", "ms": 3476526269545.9185 }, "end": { "local": "2080-03-02T18:55:37+08:00", "utc": "2080-03-02T10:55:37Z", "ms": 3476602536634.186 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2080-03-01T21:44:30+08:00", "utc": "2080-03-01T13:44:30Z", "ms": 3476526269545.9185 }, "end": { "local": "2080-03-02T18:55:37+08:00", "utc": "2080-03-02T10:55:37Z", "ms": 3476602536634.186 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-03-02", "window": { "start": { "local": "2080-03-02T06:25:10+08:00", "utc": "2080-03-01T22:25:10Z", "ms": 3476557509688.3193 }, "end": { "local": "2080-03-02T06:25:10+08:00", "utc": "2080-03-01T22:25:10Z", "ms": 3476557509688.3193 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-03-03", "window": { "start": { "local": "2080-03-03T06:24:12+08:00", "utc": "2080-03-02T22:24:12Z", "ms": 3476643851641.814 }, "end": { "local": "2080-03-03T06:24:12+08:00", "utc": "2080-03-02T22:24:12Z", "ms": 3476643851641.814 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 21:44 on Fri 1 Mar to 18:56 on Sat 2 Mar.", "fact": "2080-03-01T13:44:30Z → 2080-03-02T10:55:37Z" }, { "step": "kaala", "text": "Sunrise is at 06:25 on the 2nd and 06:24 on the 3rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 2nd and is not on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31240 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Fuzhou, 2080: Saturday 2 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": "2080-03-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Āmalakī Ekādaśī 2080 falls on Saturday 2 March. Ekādaśī runs from 21:44 on Fri 1 Mar to 18:56 on Sat 2 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-03-02", "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/2080/pradosha-vrata?on=2080-03-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7682, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-03-03T15:57:34+08:00", "utc": "2080-03-03T07:57:34Z", "ms": 3476678254404.8623 }, "end": { "local": "2080-03-04T12:58:18+08:00", "utc": "2080-03-04T04:58:18Z", "ms": 3476753897669.0312 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2080-03-03T15:57:34+08:00", "utc": "2080-03-03T07:57:34Z", "ms": 3476678254404.8623 }, "end": { "local": "2080-03-04T12:58:18+08:00", "utc": "2080-03-04T04:58:18Z", "ms": 3476753897669.0312 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-03-03", "window": { "start": { "local": "2080-03-03T18:05:36+08:00", "utc": "2080-03-03T10:05:36Z", "ms": 3476685936415.504 }, "end": { "local": "2080-03-03T19:43:57+08:00", "utc": "2080-03-03T11:43:57Z", "ms": 3476691837295.5747 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "2080-03-04", "window": { "start": { "local": "2080-03-04T18:06:09+08:00", "utc": "2080-03-04T10:06:09Z", "ms": 3476772368886.9 }, "end": { "local": "2080-03-04T19:44:18+08:00", "utc": "2080-03-04T11:44:18Z", "ms": 3476778257547.5293 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:58 on Sun 3 Mar to 12:58 on Mon 4 Mar.", "fact": "2080-03-03T07:57:34Z → 2080-03-04T04:58:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:06–19:44 on the 3rd, 18:06–19:44 on the 4th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 98 of 98 minutes on the 3rd and 0 of 98 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7682 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Sunday 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": "2080-03-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Sunday 3 March. Trayodaśī runs from 15:58 on Sun 3 Mar to 12:58 on Mon 4 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-03-03", "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/2080/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20363, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-03-05T10:06:25+08:00", "utc": "2080-03-05T02:06:25Z", "ms": 3476829984562.458 }, "end": { "local": "2080-03-06T07:30:52+08:00", "utc": "2080-03-05T23:30:52Z", "ms": 3476907051601.0244 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2080-03-05T10:06:25+08:00", "utc": "2080-03-05T02:06:25Z", "ms": 3476829984562.458 }, "end": { "local": "2080-03-06T07:30:52+08:00", "utc": "2080-03-05T23:30:52Z", "ms": 3476907051601.0244 } }, "kaala": "sayahna", "days": [ { "local_date": "2080-03-05", "window": { "start": { "local": "2080-03-05T15:45:48+08:00", "utc": "2080-03-05T07:45:48Z", "ms": 3476850347584.7485 }, "end": { "local": "2080-03-05T18:06:41+08:00", "utc": "2080-03-05T10:06:41Z", "ms": 3476858801020.5303 } }, "covered_min": 141, "window_min": 141, "qualifies": true }, { "local_date": "2080-03-06", "window": { "start": { "local": "2080-03-06T15:46:01+08:00", "utc": "2080-03-06T07:46:01Z", "ms": 3476936761096.0854 }, "end": { "local": "2080-03-06T18:07:13+08:00", "utc": "2080-03-06T10:07:13Z", "ms": 3476945232832.6504 } }, "covered_min": 0, "window_min": 141, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:06 on Tue 5 Mar to 07:31 on Wed 6 Mar.", "fact": "2080-03-05T02:06:25Z → 2080-03-05T23:30:52Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:46–18:07 on the 5th, 15:46–18:07 on the 6th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 141 of 141 minutes on the 5th and 0 of 141 on the 6th.", "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 20363 s" }, { "step": "ruling", "text": "Holikā Dahana, Fuzhou, 2080: Tuesday 5 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": "2080-03-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Holikā Dahana 2080 falls on Tuesday 5 March. Pūrṇimā runs from 10:06 on Tue 5 Mar to 07:31 on Wed 6 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20363, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-03-05T10:06:25+08:00", "utc": "2080-03-05T02:06:25Z", "ms": 3476829984562.458 }, "end": { "local": "2080-03-06T07:30:52+08:00", "utc": "2080-03-05T23:30:52Z", "ms": 3476907051601.0244 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "2080-03-05T10:06:25+08:00", "utc": "2080-03-05T02:06:25Z", "ms": 3476829984562.458 }, "end": { "local": "2080-03-06T07:30:52+08:00", "utc": "2080-03-05T23:30:52Z", "ms": 3476907051601.0244 } }, "kaala": "sayahna", "days": [ { "local_date": "2080-03-05", "window": { "start": { "local": "2080-03-05T15:45:48+08:00", "utc": "2080-03-05T07:45:48Z", "ms": 3476850347584.7485 }, "end": { "local": "2080-03-05T18:06:41+08:00", "utc": "2080-03-05T10:06:41Z", "ms": 3476858801020.5303 } }, "covered_min": 141, "window_min": 141, "qualifies": true }, { "local_date": "2080-03-06", "window": { "start": { "local": "2080-03-06T15:46:01+08:00", "utc": "2080-03-06T07:46:01Z", "ms": 3476936761096.0854 }, "end": { "local": "2080-03-06T18:07:13+08:00", "utc": "2080-03-06T10:07:13Z", "ms": 3476945232832.6504 } }, "covered_min": 0, "window_min": 141, "qualifies": false } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "2080-03-05", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:06 on Tue 5 Mar to 07:31 on Wed 6 Mar.", "fact": "2080-03-05T02:06:25Z → 2080-03-05T23:30:52Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:46–18:07 on the 5th, 15:46–18:07 on the 6th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 141 of 141 minutes on the 5th and 0 of 141 on the 6th.", "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 20363 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Tuesday 5 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Fuzhou, 2080: Wednesday 6 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": "2080-03-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Holī 2080 falls on Wednesday 6 March. It is kept the day after Holikā Dahana, which falls on Tuesday 5 March. Pūrṇimā runs from 10:06 on Tue 5 Mar to 07:31 on Wed 6 Mar and covers all of sāyāhna on the 5th.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-06", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 3589, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2080-03-06T07:30:52+08:00", "utc": "2080-03-05T23:30:52Z", "ms": 3476907051601.0244 }, "end": { "local": "2080-03-07T05:20:25+08:00", "utc": "2080-03-06T21:20:25Z", "ms": 3476985625131.9785 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-06T07:30:52+08:00", "utc": "2080-03-05T23:30:52Z", "ms": 3476907051601.0244 }, "end": { "local": "2080-03-07T05:20:25+08:00", "utc": "2080-03-06T21:20:25Z", "ms": 3476985625131.9785 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-03-06", "window": { "start": { "local": "2080-03-06T06:21:14+08:00", "utc": "2080-03-05T22:21:14Z", "ms": 3476902874149.8257 }, "end": { "local": "2080-03-06T06:21:14+08:00", "utc": "2080-03-05T22:21:14Z", "ms": 3476902874149.8257 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-03-07", "window": { "start": { "local": "2080-03-07T06:20:14+08:00", "utc": "2080-03-06T22:20:14Z", "ms": 3476989213970.3237 }, "end": { "local": "2080-03-07T06:20:14+08:00", "utc": "2080-03-06T22:20:14Z", "ms": 3476989213970.3237 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 07:31 on Wed 6 Mar to 05:20 on Thu 7 Mar.", "fact": "2080-03-05T23:30:52Z → 2080-03-06T21:20:25Z" }, { "step": "kaala", "text": "Sunrise is at 06:21 on the 6th and 06:20 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is not on the 6th and is not on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither sunrise qualifies. The day the tithi falls on is taken.", "fact": "priority: purvaviddha → tithi-day · margin 3589 s" }, { "step": "ruling", "text": "Vasantotsava, Fuzhou, 2080: Wednesday 6 March.", "fact": "confidence: boundary (absent-unstated)" } ], "rule": { "kind": "lunar", "id": "vasantotsava", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "sunrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-06", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-06", "confidence": "boundary" } ], "quote": "In Fuzhou, Vasantotsava 2080 falls on Wednesday 6 March. Pratipadā runs from 07:31 on Wed 6 Mar to 05:20 on Thu 7 Mar, and is current at sunrise on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-03-09", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17965, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-03-09T02:45:33+08:00", "utc": "2080-03-08T18:45:33Z", "ms": 3477149132652.01 }, "end": { "local": "2080-03-10T02:32:01+08:00", "utc": "2080-03-09T18:32:01Z", "ms": 3477234721434.306 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-09T02:45:33+08:00", "utc": "2080-03-08T18:45:33Z", "ms": 3477149132652.01 }, "end": { "local": "2080-03-10T02:32:01+08:00", "utc": "2080-03-09T18:32:01Z", "ms": 3477234721434.306 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-03-08", "window": { "start": { "local": "2080-03-08T20:33:29+08:00", "utc": "2080-03-08T12:33:29Z", "ms": 3477126808778.9307 }, "end": { "local": "2080-03-08T20:33:29+08:00", "utc": "2080-03-08T12:33:29Z", "ms": 3477126808778.9307 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-03-09", "window": { "start": { "local": "2080-03-09T21:32:37+08:00", "utc": "2080-03-09T13:32:37Z", "ms": 3477216756689.7417 }, "end": { "local": "2080-03-09T21:32:37+08:00", "utc": "2080-03-09T13:32:37Z", "ms": 3477216756689.7417 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:46 on Sat 9 Mar to 02:32 on Sun 10 Mar.", "fact": "2080-03-08T18:45:33Z → 2080-03-09T18:32:01Z" }, { "step": "kaala", "text": "Moonrise is at 20:33 on the 8th and 21:33 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 8th and is on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17965 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Saturday 9 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Saturday 9 March. Caturthī runs from 02:46 on Sat 9 Mar to 02:32 on Sun 10 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-03-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12261, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2080-03-13T06:08:13+08:00", "utc": "2080-03-12T22:08:13Z", "ms": 3477506893438.3286 }, "end": { "local": "2080-03-14T08:23:48+08:00", "utc": "2080-03-14T00:23:48Z", "ms": 3477601428156.813 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-13T06:08:13+08:00", "utc": "2080-03-12T22:08:13Z", "ms": 3477506893438.3286 }, "end": { "local": "2080-03-14T08:23:48+08:00", "utc": "2080-03-14T00:23:48Z", "ms": 3477601428156.813 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-03-13", "window": { "start": { "local": "2080-03-13T11:48:26+08:00", "utc": "2080-03-13T03:48:26Z", "ms": 3477527306126.1113 }, "end": { "local": "2080-03-13T12:36:26+08:00", "utc": "2080-03-13T04:36:26Z", "ms": 3477530186126.1113 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-03-14", "window": { "start": { "local": "2080-03-14T11:48:10+08:00", "utc": "2080-03-14T03:48:10Z", "ms": 3477613689653.5703 }, "end": { "local": "2080-03-14T12:36:10+08:00", "utc": "2080-03-14T04:36:10Z", "ms": 3477616569653.5703 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 06:08 on Wed 13 Mar to 08:24 on Thu 14 Mar.", "fact": "2080-03-12T22:08:13Z → 2080-03-14T00:23:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 13th, 11:48–12:36 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12261 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Fuzhou, 2080: Wednesday 13 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": "2080-03-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Śītalāṣṭamī 2080 falls on Wednesday 13 March. Aṣṭamī runs from 06:08 on Wed 13 Mar to 08:24 on Thu 14 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-03-17", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25713, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-03-16T13:19:29+08:00", "utc": "2080-03-16T05:19:29Z", "ms": 3477791968777.327 }, "end": { "local": "2080-03-17T15:34:11+08:00", "utc": "2080-03-17T07:34:11Z", "ms": 3477886451473.2993 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-16T13:19:29+08:00", "utc": "2080-03-16T05:19:29Z", "ms": 3477791968777.327 }, "end": { "local": "2080-03-17T15:34:11+08:00", "utc": "2080-03-17T07:34:11Z", "ms": 3477886451473.2993 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-03-16", "window": { "start": { "local": "2080-03-16T06:10:55+08:00", "utc": "2080-03-15T22:10:55Z", "ms": 3477766255313.448 }, "end": { "local": "2080-03-16T06:10:55+08:00", "utc": "2080-03-15T22:10:55Z", "ms": 3477766255313.448 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-03-17", "window": { "start": { "local": "2080-03-17T06:09:52+08:00", "utc": "2080-03-16T22:09:52Z", "ms": 3477852591865.456 }, "end": { "local": "2080-03-17T06:09:52+08:00", "utc": "2080-03-16T22:09:52Z", "ms": 3477852591865.456 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:19 on Sat 16 Mar to 15:34 on Sun 17 Mar.", "fact": "2080-03-16T05:19:29Z → 2080-03-17T07:34:11Z" }, { "step": "kaala", "text": "Sunrise is at 06:11 on the 16th and 06:10 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 25713 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Fuzhou, 2080: Sunday 17 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Pāpamocanī Ekādaśī 2080 falls on Sunday 17 March. Ekādaśī runs from 13:19 on Sat 16 Mar to 15:34 on Sun 17 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-03-17", "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/2080/pradosha-vrata?on=2080-03-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-18", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2255, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-03-18T17:26:49+08:00", "utc": "2080-03-18T09:26:49Z", "ms": 3477979608756.7573 }, "end": { "local": "2080-03-19T18:51:20+08:00", "utc": "2080-03-19T10:51:20Z", "ms": 3478071079664.7876 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-18T17:26:49+08:00", "utc": "2080-03-18T09:26:49Z", "ms": 3477979608756.7573 }, "end": { "local": "2080-03-19T18:51:20+08:00", "utc": "2080-03-19T10:51:20Z", "ms": 3478071079664.7876 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-03-18", "window": { "start": { "local": "2080-03-18T18:13:15+08:00", "utc": "2080-03-18T10:13:15Z", "ms": 3477982395233.8433 }, "end": { "local": "2080-03-18T19:48:31+08:00", "utc": "2080-03-18T11:48:31Z", "ms": 3477988111131.802 } }, "covered_min": 95, "window_min": 95, "qualifies": true }, { "local_date": "2080-03-19", "window": { "start": { "local": "2080-03-19T18:13:44+08:00", "utc": "2080-03-19T10:13:44Z", "ms": 3478068824226.1997 }, "end": { "local": "2080-03-19T19:48:48+08:00", "utc": "2080-03-19T11:48:48Z", "ms": 3478074527738.866 } }, "covered_min": 38, "window_min": 95, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:27 on Mon 18 Mar to 18:51 on Tue 19 Mar.", "fact": "2080-03-18T09:26:49Z → 2080-03-19T10:51:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:13–19:49 on the 18th, 18:14–19:49 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 95 of 95 minutes on the 18th and 38 of 95 on the 19th.", "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 2255 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Monday 18 March.", "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": "2080-03-18", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-18", "confidence": "boundary" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Monday 18 March. Trayodaśī runs from 17:27 on Mon 18 Mar to 18:51 on Tue 19 Mar and covers all of pradoṣa that evening. It also reaches the next evening for 38 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/2080/pradosha-vrata?on=2080-03-18", "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/2080/shivaratri?on=2080-03-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14460, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-03-19T18:51:20+08:00", "utc": "2080-03-19T10:51:20Z", "ms": 3478071079664.7876 }, "end": { "local": "2080-03-20T19:44:54+08:00", "utc": "2080-03-20T11:44:54Z", "ms": 3478160694428.7246 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-19T18:51:20+08:00", "utc": "2080-03-19T10:51:20Z", "ms": 3478071079664.7876 }, "end": { "local": "2080-03-20T19:44:54+08:00", "utc": "2080-03-20T11:44:54Z", "ms": 3478160694428.7246 } }, "kaala": "nishita", "days": [ { "local_date": "2080-03-19", "window": { "start": { "local": "2080-03-19T23:46:12+08:00", "utc": "2080-03-19T15:46:12Z", "ms": 3478088772398.699 }, "end": { "local": "2080-03-20T00:34:12+08:00", "utc": "2080-03-19T16:34:12Z", "ms": 3478091652398.699 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-03-20", "window": { "start": { "local": "2080-03-20T23:45:55+08:00", "utc": "2080-03-20T15:45:55Z", "ms": 3478175154830.734 }, "end": { "local": "2080-03-21T00:33:55+08:00", "utc": "2080-03-20T16:33:55Z", "ms": 3478178034830.734 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:51 on Tue 19 Mar to 19:45 on Wed 20 Mar.", "fact": "2080-03-19T10:51:20Z → 2080-03-20T11:44:54Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:46–00:34 on the 19th, 23:46–00:34 on the 20th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14460 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Tuesday 19 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Tuesday 19 March. Caturdaśī runs from 18:51 on Tue 19 Mar to 19:45 on Wed 20 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-03-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26774, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2080-03-21T20:07:18+08:00", "utc": "2080-03-21T12:07:18Z", "ms": 3478248438431.884 }, "end": { "local": "2080-03-22T20:00:05+08:00", "utc": "2080-03-22T12:00:05Z", "ms": 3478334405284.188 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-21T20:07:18+08:00", "utc": "2080-03-21T12:07:18Z", "ms": 3478248438431.884 }, "end": { "local": "2080-03-22T20:00:05+08:00", "utc": "2080-03-22T12:00:05Z", "ms": 3478334405284.188 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-03-21", "window": { "start": { "local": "2080-03-21T11:46:09+08:00", "utc": "2080-03-21T03:46:09Z", "ms": 3478218369199.7705 }, "end": { "local": "2080-03-21T12:34:09+08:00", "utc": "2080-03-21T04:34:09Z", "ms": 3478221249199.7705 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-03-22", "window": { "start": { "local": "2080-03-22T11:45:51+08:00", "utc": "2080-03-22T03:45:51Z", "ms": 3478304751477.3037 }, "end": { "local": "2080-03-22T12:33:51+08:00", "utc": "2080-03-22T04:33:51Z", "ms": 3478307631477.3037 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 20:07 on Thu 21 Mar to 20:00 on Fri 22 Mar.", "fact": "2080-03-21T12:07:18Z → 2080-03-22T12:00:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 21st, 11:46–12:34 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26774 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Fuzhou, 2080: Friday 22 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha-caitra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Navarātrārambha (Caitra) (Chaitra Navratri) 2080 falls on Friday 22 March. Pratipadā runs from 20:07 on Thu 21 Mar to 20:00 on Fri 22 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21269, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2080-03-23T19:25:52+08:00", "utc": "2080-03-23T11:25:52Z", "ms": 3478418752194.8306 }, "end": { "local": "2080-03-24T18:27:45+08:00", "utc": "2080-03-24T10:27:45Z", "ms": 3478501664796.011 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-23T19:25:52+08:00", "utc": "2080-03-23T11:25:52Z", "ms": 3478418752194.8306 }, "end": { "local": "2080-03-24T18:27:45+08:00", "utc": "2080-03-24T10:27:45Z", "ms": 3478501664796.011 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-03-23", "window": { "start": { "local": "2080-03-23T11:45:34+08:00", "utc": "2080-03-23T03:45:34Z", "ms": 3478391133678.258 }, "end": { "local": "2080-03-23T12:33:34+08:00", "utc": "2080-03-23T04:33:34Z", "ms": 3478394013678.258 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-03-24", "window": { "start": { "local": "2080-03-24T11:45:16+08:00", "utc": "2080-03-24T03:45:16Z", "ms": 3478477515819.271 }, "end": { "local": "2080-03-24T12:33:16+08:00", "utc": "2080-03-24T04:33:16Z", "ms": 3478480395819.271 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 19:26 on Sat 23 Mar to 18:28 on Sun 24 Mar.", "fact": "2080-03-23T11:25:52Z → 2080-03-24T10:27:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 23rd, 11:45–12:33 on the 24th.", "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 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21269 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Fuzhou, 2080: Sunday 24 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gauri-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaurī Tṛtīyā (Gangaur) 2080 falls on Sunday 24 March. Tṛtīyā runs from 19:26 on Sat 23 Mar to 18:28 on Sun 24 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21269, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2080-03-23T19:25:52+08:00", "utc": "2080-03-23T11:25:52Z", "ms": 3478418752194.8306 }, "end": { "local": "2080-03-24T18:27:45+08:00", "utc": "2080-03-24T10:27:45Z", "ms": 3478501664796.011 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-23T19:25:52+08:00", "utc": "2080-03-23T11:25:52Z", "ms": 3478418752194.8306 }, "end": { "local": "2080-03-24T18:27:45+08:00", "utc": "2080-03-24T10:27:45Z", "ms": 3478501664796.011 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-03-23", "window": { "start": { "local": "2080-03-23T11:45:34+08:00", "utc": "2080-03-23T03:45:34Z", "ms": 3478391133678.258 }, "end": { "local": "2080-03-23T12:33:34+08:00", "utc": "2080-03-23T04:33:34Z", "ms": 3478394013678.258 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-03-24", "window": { "start": { "local": "2080-03-24T11:45:16+08:00", "utc": "2080-03-24T03:45:16Z", "ms": 3478477515819.271 }, "end": { "local": "2080-03-24T12:33:16+08:00", "utc": "2080-03-24T04:33:16Z", "ms": 3478480395819.271 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 19:26 on Sat 23 Mar to 18:28 on Sun 24 Mar.", "fact": "2080-03-23T11:25:52Z → 2080-03-24T10:27:45Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 23rd, 11:45–12:33 on the 24th.", "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 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21269 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Fuzhou, 2080: Sunday 24 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "saubhagya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Saubhāgya Śayana Vrata 2080 falls on Sunday 24 March. Tṛtīyā runs from 19:26 on Sat 23 Mar to 18:28 on Sun 24 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vinayaka-chaturthi?on=2080-03-25", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16556, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-03-24T18:27:45+08:00", "utc": "2080-03-24T10:27:45Z", "ms": 3478501664796.011 }, "end": { "local": "2080-03-25T17:08:54+08:00", "utc": "2080-03-25T09:08:54Z", "ms": 3478583333864.5664 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-24T18:27:45+08:00", "utc": "2080-03-24T10:27:45Z", "ms": 3478501664796.011 }, "end": { "local": "2080-03-25T17:08:54+08:00", "utc": "2080-03-25T09:08:54Z", "ms": 3478583333864.5664 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-03-24", "window": { "start": { "local": "2080-03-24T11:45:16+08:00", "utc": "2080-03-24T03:45:16Z", "ms": 3478477515819.271 }, "end": { "local": "2080-03-24T12:33:16+08:00", "utc": "2080-03-24T04:33:16Z", "ms": 3478480395819.271 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-03-25", "window": { "start": { "local": "2080-03-25T11:44:58+08:00", "utc": "2080-03-25T03:44:58Z", "ms": 3478563897916.9756 }, "end": { "local": "2080-03-25T12:32:58+08:00", "utc": "2080-03-25T04:32:58Z", "ms": 3478566777916.9756 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:28 on Sun 24 Mar to 17:09 on Mon 25 Mar.", "fact": "2080-03-24T10:27:45Z → 2080-03-25T09:08:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 24th, 11:45–12:33 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 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 midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16556 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2080: Monday 25 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2080 falls on Monday 25 March. Caturthī runs from 18:28 on Sun 24 Mar to 17:09 on Mon 25 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-03-25", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10784, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2080-03-25T17:08:54+08:00", "utc": "2080-03-25T09:08:54Z", "ms": 3478583333864.5664 }, "end": { "local": "2080-03-26T15:32:24+08:00", "utc": "2080-03-26T07:32:24Z", "ms": 3478663943572.177 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-25T17:08:54+08:00", "utc": "2080-03-25T09:08:54Z", "ms": 3478583333864.5664 }, "end": { "local": "2080-03-26T15:32:24+08:00", "utc": "2080-03-26T07:32:24Z", "ms": 3478663943572.177 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-03-25", "window": { "start": { "local": "2080-03-25T11:44:58+08:00", "utc": "2080-03-25T03:44:58Z", "ms": 3478563897916.9756 }, "end": { "local": "2080-03-25T12:32:58+08:00", "utc": "2080-03-25T04:32:58Z", "ms": 3478566777916.9756 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-03-26", "window": { "start": { "local": "2080-03-26T11:44:40+08:00", "utc": "2080-03-26T03:44:40Z", "ms": 3478650279988.203 }, "end": { "local": "2080-03-26T12:32:40+08:00", "utc": "2080-03-26T04:32:40Z", "ms": 3478653159988.203 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 17:09 on Mon 25 Mar to 15:32 on Tue 26 Mar.", "fact": "2080-03-25T09:08:54Z → 2080-03-26T07:32:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 25th, 11:45–12:33 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 10784 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Fuzhou, 2080: Tuesday 26 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "lakshmi-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sri pancami or Laksmi pancami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Lakṣmī Pañcamī 2080 falls on Tuesday 26 March. Pañcamī runs from 17:09 on Mon 25 Mar to 15:32 on Tue 26 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 361, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2080-03-28T11:38:03+08:00", "utc": "2080-03-28T03:38:03Z", "ms": 3478822683440.9214 }, "end": { "local": "2080-03-29T09:26:03+08:00", "utc": "2080-03-29T01:26:03Z", "ms": 3478901163352.148 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-28T11:38:03+08:00", "utc": "2080-03-28T03:38:03Z", "ms": 3478822683440.9214 }, "end": { "local": "2080-03-29T09:26:03+08:00", "utc": "2080-03-29T01:26:03Z", "ms": 3478901163352.148 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-03-28", "window": { "start": { "local": "2080-03-28T11:44:04+08:00", "utc": "2080-03-28T03:44:04Z", "ms": 3478823044120.8193 }, "end": { "local": "2080-03-28T12:32:04+08:00", "utc": "2080-03-28T04:32:04Z", "ms": 3478825924120.8193 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-03-29", "window": { "start": { "local": "2080-03-29T11:43:46+08:00", "utc": "2080-03-29T03:43:46Z", "ms": 3478909426218.6973 }, "end": { "local": "2080-03-29T12:31:46+08:00", "utc": "2080-03-29T04:31:46Z", "ms": 3478912306218.6973 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:38 on Thu 28 Mar to 09:26 on Fri 29 Mar.", "fact": "2080-03-28T03:38:03Z → 2080-03-29T01:26:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 28th, 11:44–12:32 on the 29th.", "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 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 361 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Fuzhou, 2080: Thursday 28 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhavani-utpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Annapurna puja (Beng.) (paraviddha), Bhavani-utpatti (paraviddha), Asokastami (Special when combined with naks. Punarvasu and Wednesday, after mid-day)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Bhavānī Utpatti 2080 falls on Thursday 28 March. Aṣṭamī runs from 11:38 on Thu 28 Mar to 09:26 on Fri 29 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8263, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2080-03-29T09:26:03+08:00", "utc": "2080-03-29T01:26:03Z", "ms": 3478901163352.148 }, "end": { "local": "2080-03-30T07:08:23+08:00", "utc": "2080-03-29T23:08:23Z", "ms": 3478979303431.1313 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-29T09:26:03+08:00", "utc": "2080-03-29T01:26:03Z", "ms": 3478901163352.148 }, "end": { "local": "2080-03-30T07:08:23+08:00", "utc": "2080-03-29T23:08:23Z", "ms": 3478979303431.1313 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-03-29", "window": { "start": { "local": "2080-03-29T11:43:46+08:00", "utc": "2080-03-29T03:43:46Z", "ms": 3478909426218.6973 }, "end": { "local": "2080-03-29T12:31:46+08:00", "utc": "2080-03-29T04:31:46Z", "ms": 3478912306218.6973 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-03-30", "window": { "start": { "local": "2080-03-30T11:43:28+08:00", "utc": "2080-03-30T03:43:28Z", "ms": 3478995808363.353 }, "end": { "local": "2080-03-30T12:31:28+08:00", "utc": "2080-03-30T04:31:28Z", "ms": 3478998688363.353 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 09:26 on Fri 29 Mar to 07:08 on Sat 30 Mar.", "fact": "2080-03-29T01:26:03Z → 2080-03-29T23:08:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 29th, 11:43–12:31 on the 30th.", "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 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 8263 s" }, { "step": "ruling", "text": "Rāma Navamī, Fuzhou, 2080: Friday 29 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rama-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Ramanavami (madhyahnavyapini, special with Punarvasu naks.), Rama jayanti." } ], "not_evaluated": "The row calls the day special when it falls with Punarvasu nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Rāma Navamī 2080 falls on Friday 29 March. Navamī runs from 09:26 on Fri 29 Mar to 07:08 on Sat 30 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-03-31", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3973, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-03-31T04:48:44+08:00", "utc": "2080-03-30T20:48:44Z", "ms": 3479057323837.936 }, "end": { "local": "2080-04-01T02:31:17+08:00", "utc": "2080-03-31T18:31:17Z", "ms": 3479135476843.5874 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-03-31T04:48:44+08:00", "utc": "2080-03-30T20:48:44Z", "ms": 3479057323837.936 }, "end": { "local": "2080-04-01T02:31:17+08:00", "utc": "2080-03-31T18:31:17Z", "ms": 3479135476843.5874 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-03-31", "window": { "start": { "local": "2080-03-31T05:54:57+08:00", "utc": "2080-03-30T21:54:57Z", "ms": 3479061296601.6006 }, "end": { "local": "2080-03-31T05:54:57+08:00", "utc": "2080-03-30T21:54:57Z", "ms": 3479061296601.6006 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-04-01", "window": { "start": { "local": "2080-04-01T05:53:53+08:00", "utc": "2080-03-31T21:53:53Z", "ms": 3479147633164.5 }, "end": { "local": "2080-04-01T05:53:53+08:00", "utc": "2080-03-31T21:53:53Z", "ms": 3479147633164.5 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:49 on Sun 31 Mar to 02:31 on Mon 1 Apr.", "fact": "2080-03-30T20:48:44Z → 2080-03-31T18:31:17Z" }, { "step": "kaala", "text": "Sunrise is at 05:55 on the 31st and 05:54 on the 1st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 31st and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3973 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Fuzhou, 2080: Sunday 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": "2080-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-03-31", "confidence": "determinate" } ], "quote": "In Fuzhou, Kāmadā Ekādaśī 2080 falls on Sunday 31 March. Ekādaśī runs from 04:49 on Sun 31 Mar to 02:31 on Mon 1 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-03-31", "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/2080/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35520, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-04-02T00:20:49+08:00", "utc": "2080-04-01T16:20:49Z", "ms": 3479214048570.0884 }, "end": { "local": "2080-04-02T22:22:36+08:00", "utc": "2080-04-02T14:22:36Z", "ms": 3479293355507.023 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-04-02T00:20:49+08:00", "utc": "2080-04-01T16:20:49Z", "ms": 3479214048570.0884 }, "end": { "local": "2080-04-02T22:22:36+08:00", "utc": "2080-04-02T14:22:36Z", "ms": 3479293355507.023 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-04-01", "window": { "start": { "local": "2080-04-01T11:42:53+08:00", "utc": "2080-04-01T03:42:53Z", "ms": 3479168572875.6323 }, "end": { "local": "2080-04-01T12:30:53+08:00", "utc": "2080-04-01T04:30:53Z", "ms": 3479171452875.6323 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-04-02", "window": { "start": { "local": "2080-04-02T11:42:35+08:00", "utc": "2080-04-02T03:42:35Z", "ms": 3479254955286.584 }, "end": { "local": "2080-04-02T12:30:35+08:00", "utc": "2080-04-02T04:30:35Z", "ms": 3479257835286.584 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:21 on Tue 2 Apr to 22:23 on Tue 2 Apr.", "fact": "2080-04-01T16:20:49Z → 2080-04-02T14:22:36Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 1st, 11:43–12:31 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 35520 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Fuzhou, 2080: Tuesday 2 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": "2080-04-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Anaṅga Trayodaśī 2080 falls on Tuesday 2 April. Trayodaśī runs from 00:21 on Tue 2 Apr to 22:23 on Tue 2 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/pradosha-vrata?on=2080-04-02", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9003, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-04-02T00:20:49+08:00", "utc": "2080-04-01T16:20:49Z", "ms": 3479214048570.0884 }, "end": { "local": "2080-04-02T22:22:36+08:00", "utc": "2080-04-02T14:22:36Z", "ms": 3479293355507.023 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-04-02T00:20:49+08:00", "utc": "2080-04-01T16:20:49Z", "ms": 3479214048570.0884 }, "end": { "local": "2080-04-02T22:22:36+08:00", "utc": "2080-04-02T14:22:36Z", "ms": 3479293355507.023 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-04-01", "window": { "start": { "local": "2080-04-01T18:19:53+08:00", "utc": "2080-04-01T10:19:53Z", "ms": 3479192392586.7646 }, "end": { "local": "2080-04-01T19:52:16+08:00", "utc": "2080-04-01T11:52:16Z", "ms": 3479197936233.623 } }, "covered_min": 0, "window_min": 92, "qualifies": false }, { "local_date": "2080-04-02", "window": { "start": { "local": "2080-04-02T18:20:21+08:00", "utc": "2080-04-02T10:20:21Z", "ms": 3479278820634.965 }, "end": { "local": "2080-04-02T19:52:32+08:00", "utc": "2080-04-02T11:52:32Z", "ms": 3479284352143.8267 } }, "covered_min": 92, "window_min": 92, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:21 on Tue 2 Apr to 22:23 on Tue 2 Apr.", "fact": "2080-04-01T16:20:49Z → 2080-04-02T14:22:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:20–19:52 on the 1st, 18:20–19:53 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 0 of 92 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": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9003 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Tuesday 2 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": "2080-04-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Tuesday 2 April. Trayodaśī runs from 00:21 on Tue 2 Apr to 22:23 on Tue 2 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-04-02", "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/2080/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29517, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-04-02T22:22:36+08:00", "utc": "2080-04-02T14:22:36Z", "ms": 3479293355507.023 }, "end": { "local": "2080-04-03T20:42:15+08:00", "utc": "2080-04-03T12:42:15Z", "ms": 3479373735165.0615 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-04-02T22:22:36+08:00", "utc": "2080-04-02T14:22:36Z", "ms": 3479293355507.023 }, "end": { "local": "2080-04-03T20:42:15+08:00", "utc": "2080-04-03T12:42:15Z", "ms": 3479373735165.0615 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-04-02", "window": { "start": { "local": "2080-04-02T11:42:35+08:00", "utc": "2080-04-02T03:42:35Z", "ms": 3479254955286.584 }, "end": { "local": "2080-04-02T12:30:35+08:00", "utc": "2080-04-02T04:30:35Z", "ms": 3479257835286.584 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-04-03", "window": { "start": { "local": "2080-04-03T11:42:18+08:00", "utc": "2080-04-03T03:42:18Z", "ms": 3479341337830.549 }, "end": { "local": "2080-04-03T12:30:18+08:00", "utc": "2080-04-03T04:30:18Z", "ms": 3479344217830.549 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 22:23 on Tue 2 Apr to 20:42 on Wed 3 Apr.", "fact": "2080-04-02T14:22:36Z → 2080-04-03T12:42:15Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 2nd, 11:42–12:30 on the 3rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 2nd and 48 of 48 on the 3rd.", "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 29517 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Fuzhou, 2080: Wednesday 3 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": "2080-04-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Viṣṇudamanaka Caturdaśī 2080 falls on Wednesday 3 April. Caturdaśī runs from 22:23 on Tue 2 Apr to 20:42 on Wed 3 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24929, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-04-03T20:42:15+08:00", "utc": "2080-04-03T12:42:15Z", "ms": 3479373735165.0615 }, "end": { "local": "2080-04-04T19:25:30+08:00", "utc": "2080-04-04T11:25:30Z", "ms": 3479455529966.7983 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "2080-04-03T20:42:15+08:00", "utc": "2080-04-03T12:42:15Z", "ms": 3479373735165.0615 }, "end": { "local": "2080-04-04T19:25:30+08:00", "utc": "2080-04-04T11:25:30Z", "ms": 3479455529966.7983 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-04-03", "window": { "start": { "local": "2080-04-03T11:42:18+08:00", "utc": "2080-04-03T03:42:18Z", "ms": 3479341337830.549 }, "end": { "local": "2080-04-03T12:30:18+08:00", "utc": "2080-04-03T04:30:18Z", "ms": 3479344217830.549 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-04-04", "window": { "start": { "local": "2080-04-04T11:42:01+08:00", "utc": "2080-04-04T03:42:01Z", "ms": 3479427720530.118 }, "end": { "local": "2080-04-04T12:30:01+08:00", "utc": "2080-04-04T04:30:01Z", "ms": 3479430600530.118 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 20:42 on Wed 3 Apr to 19:25 on Thu 4 Apr.", "fact": "2080-04-03T12:42:15Z → 2080-04-04T11:25:30Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 3rd, 11:42–12:30 on the 4th.", "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 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 24929 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Fuzhou, 2080: Thursday 4 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": "2080-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Caitrī Pūrṇimā 2080 falls on Thursday 4 April. Pūrṇimā runs from 20:42 on Wed 3 Apr to 19:25 on Thu 4 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-04-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9018, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-04-07T18:45:31+08:00", "utc": "2080-04-07T10:45:31Z", "ms": 3479712331191.9536 }, "end": { "local": "2080-04-08T19:44:32+08:00", "utc": "2080-04-08T11:44:32Z", "ms": 3479802272304.3247 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-07T18:45:31+08:00", "utc": "2080-04-07T10:45:31Z", "ms": 3479712331191.9536 }, "end": { "local": "2080-04-08T19:44:32+08:00", "utc": "2080-04-08T11:44:32Z", "ms": 3479802272304.3247 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-04-07", "window": { "start": { "local": "2080-04-07T21:15:49+08:00", "utc": "2080-04-07T13:15:49Z", "ms": 3479721348986.69 }, "end": { "local": "2080-04-07T21:15:49+08:00", "utc": "2080-04-07T13:15:49Z", "ms": 3479721348986.69 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-04-08", "window": { "start": { "local": "2080-04-08T22:15:02+08:00", "utc": "2080-04-08T14:15:02Z", "ms": 3479811301777.429 }, "end": { "local": "2080-04-08T22:15:02+08:00", "utc": "2080-04-08T14:15:02Z", "ms": 3479811301777.429 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:46 on Sun 7 Apr to 19:45 on Mon 8 Apr.", "fact": "2080-04-07T10:45:31Z → 2080-04-08T11:44:32Z" }, { "step": "kaala", "text": "Moonrise is at 21:16 on the 7th and 22:15 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9018 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Sunday 7 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": "2080-04-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Sunday 7 April. Caturthī runs from 18:46 on Sun 7 Apr to 19:45 on Mon 8 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-04-07", "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/2080/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8746, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "2080-04-14T08:06:24+08:00", "utc": "2080-04-14T00:06:24Z", "ms": 3480278783904.758 }, "end": { "local": "2080-05-15T04:54:37+08:00", "utc": "2080-05-14T20:54:37Z", "ms": 3482945677217.245 } }, "span": { "of": "transit", "start": { "local": "2080-04-14T08:06:24+08:00", "utc": "2080-04-14T00:06:24Z", "ms": 3480278783904.758 }, "end": { "local": "2080-04-14T08:06:24+08:00", "utc": "2080-04-14T00:06:24Z", "ms": 3480278783904.758 } }, "kaala": "day", "days": [ { "local_date": "2080-04-13", "window": { "start": { "local": "2080-04-13T05:41:37+08:00", "utc": "2080-04-12T21:41:37Z", "ms": 3480183696506.0728 }, "end": { "local": "2080-04-14T05:40:38+08:00", "utc": "2080-04-13T21:40:38Z", "ms": 3480270038006.6616 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "2080-04-14", "window": { "start": { "local": "2080-04-14T05:40:38+08:00", "utc": "2080-04-13T21:40:38Z", "ms": 3480270038006.6616 }, "end": { "local": "2080-04-15T05:39:40+08:00", "utc": "2080-04-14T21:39:40Z", "ms": 3480356380074.4175 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 08:06 on Sun 14 Apr.", "fact": "2080-04-14T00:06:24Z · 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 8746 s" }, { "step": "ruling", "text": "Vaiśākhī, Fuzhou, 2080: Sunday 14 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-04-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "2080-04-14", "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": "2080-04-14", "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 2080 falls on Sunday 14 April. The Sun enters Meṣa at 08:06 on Sun 14 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-04-16", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9384, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-04-15T08:16:04+08:00", "utc": "2080-04-15T00:16:04Z", "ms": 3480365763717.8203 }, "end": { "local": "2080-04-16T09:41:24+08:00", "utc": "2080-04-16T01:41:24Z", "ms": 3480457284097.426 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-15T08:16:04+08:00", "utc": "2080-04-15T00:16:04Z", "ms": 3480365763717.8203 }, "end": { "local": "2080-04-16T09:41:24+08:00", "utc": "2080-04-16T01:41:24Z", "ms": 3480457284097.426 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-04-15", "window": { "start": { "local": "2080-04-15T05:39:40+08:00", "utc": "2080-04-14T21:39:40Z", "ms": 3480356380074.4175 }, "end": { "local": "2080-04-15T05:39:40+08:00", "utc": "2080-04-14T21:39:40Z", "ms": 3480356380074.4175 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-04-16", "window": { "start": { "local": "2080-04-16T05:38:43+08:00", "utc": "2080-04-15T21:38:43Z", "ms": 3480442722733.948 }, "end": { "local": "2080-04-16T05:38:43+08:00", "utc": "2080-04-15T21:38:43Z", "ms": 3480442722733.948 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 08:16 on Mon 15 Apr to 09:41 on Tue 16 Apr.", "fact": "2080-04-15T00:16:04Z → 2080-04-16T01:41:24Z" }, { "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 9384 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Fuzhou, 2080: Tuesday 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": "2080-04-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Varūthinī Ekādaśī 2080 falls on Tuesday 16 April. Ekādaśī runs from 08:16 on Mon 15 Apr to 09:41 on Tue 16 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-04-16", "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/2080/pradosha-vrata?on=2080-04-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28211, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-04-17T10:29:32+08:00", "utc": "2080-04-17T02:29:32Z", "ms": 3480546571662.6367 }, "end": { "local": "2080-04-18T10:37:51+08:00", "utc": "2080-04-18T02:37:51Z", "ms": 3480633470617.509 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-17T10:29:32+08:00", "utc": "2080-04-17T02:29:32Z", "ms": 3480546571662.6367 }, "end": { "local": "2080-04-18T10:37:51+08:00", "utc": "2080-04-18T02:37:51Z", "ms": 3480633470617.509 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-04-17", "window": { "start": { "local": "2080-04-17T18:27:32+08:00", "utc": "2080-04-17T10:27:32Z", "ms": 3480575252048.054 }, "end": { "local": "2080-04-17T19:56:46+08:00", "utc": "2080-04-17T11:56:46Z", "ms": 3480580606431.466 } }, "covered_min": 89, "window_min": 89, "qualifies": true }, { "local_date": "2080-04-18", "window": { "start": { "local": "2080-04-18T18:28:02+08:00", "utc": "2080-04-18T10:28:02Z", "ms": 3480661681939.96 }, "end": { "local": "2080-04-18T19:57:05+08:00", "utc": "2080-04-18T11:57:05Z", "ms": 3480667024947.9097 } }, "covered_min": 0, "window_min": 89, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:30 on Wed 17 Apr to 10:38 on Thu 18 Apr.", "fact": "2080-04-17T02:29:32Z → 2080-04-18T02:37:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:28–19:57 on the 17th, 18:28–19:57 on the 18th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 89 of 89 minutes on the 17th and 0 of 89 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28211 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Wednesday 17 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-04-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Wednesday 17 April. Trayodaśī runs from 10:30 on Wed 17 Apr to 10:38 on Thu 18 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-04-17", "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/2080/shivaratri?on=2080-04-18", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34873, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-04-18T10:37:51+08:00", "utc": "2080-04-18T02:37:51Z", "ms": 3480633470617.509 }, "end": { "local": "2080-04-19T10:07:12+08:00", "utc": "2080-04-19T02:07:12Z", "ms": 3480718031572.794 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-18T10:37:51+08:00", "utc": "2080-04-18T02:37:51Z", "ms": 3480633470617.509 }, "end": { "local": "2080-04-19T10:07:12+08:00", "utc": "2080-04-19T02:07:12Z", "ms": 3480718031572.794 } }, "kaala": "nishita", "days": [ { "local_date": "2080-04-17", "window": { "start": { "local": "2080-04-17T23:38:11+08:00", "utc": "2080-04-17T15:38:11Z", "ms": 3480593890985.8486 }, "end": { "local": "2080-04-18T00:26:11+08:00", "utc": "2080-04-17T16:26:11Z", "ms": 3480596770985.8486 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-04-18", "window": { "start": { "local": "2080-04-18T23:37:58+08:00", "utc": "2080-04-18T15:37:58Z", "ms": 3480680278219.772 }, "end": { "local": "2080-04-19T00:25:58+08:00", "utc": "2080-04-18T16:25:58Z", "ms": 3480683158219.772 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:38 on Thu 18 Apr to 10:07 on Fri 19 Apr.", "fact": "2080-04-18T02:37:51Z → 2080-04-19T02:07:12Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:38–00:26 on the 17th, 23:38–00:26 on the 18th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34873 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Thursday 18 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-04-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Thursday 18 April. Caturdaśī runs from 10:38 on Thu 18 Apr to 10:07 on Fri 19 Apr and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-04-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 480, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2080-04-22T05:25:13+08:00", "utc": "2080-04-21T21:25:13Z", "ms": 3480960312635.5684 }, "end": { "local": "2080-04-23T03:08:45+08:00", "utc": "2080-04-22T19:08:45Z", "ms": 3481038524737.945 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-22T05:25:13+08:00", "utc": "2080-04-21T21:25:13Z", "ms": 3480960312635.5684 }, "end": { "local": "2080-04-23T03:08:45+08:00", "utc": "2080-04-22T19:08:45Z", "ms": 3481038524737.945 } }, "kaala": "purvahna", "days": [ { "local_date": "2080-04-22", "window": { "start": { "local": "2080-04-22T05:33:12+08:00", "utc": "2080-04-21T21:33:12Z", "ms": 3480960792409.1787 }, "end": { "local": "2080-04-22T09:52:09+08:00", "utc": "2080-04-22T01:52:09Z", "ms": 3480976329312.8066 } }, "covered_min": 259, "window_min": 259, "qualifies": true }, { "local_date": "2080-04-23", "window": { "start": { "local": "2080-04-23T05:32:20+08:00", "utc": "2080-04-22T21:32:20Z", "ms": 3481047139840.568 }, "end": { "local": "2080-04-23T09:51:44+08:00", "utc": "2080-04-23T01:51:44Z", "ms": 3481062704493.757 } }, "covered_min": 0, "window_min": 259, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:25 on Mon 22 Apr to 03:09 on Tue 23 Apr.", "fact": "2080-04-21T21:25:13Z → 2080-04-22T19:08:45Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:33–09:52 on the 22nd, 05:32–09:52 on the 23rd.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 259 of 259 minutes on the 22nd and 0 of 259 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 480 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Fuzhou, 2080: Monday 22 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akshaya-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "not_evaluated": "The row calls the day special with Rohiṇī nakṣatra and a Wednesday; neither is tested.", "kaala": "purvahna", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Akṣaya Tṛtīyā 2080 falls on Monday 22 April. Tṛtīyā runs from 05:25 on Mon 22 Apr to 03:09 on Tue 23 Apr and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25823, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2080-04-22T05:25:13+08:00", "utc": "2080-04-21T21:25:13Z", "ms": 3480960312635.5684 }, "end": { "local": "2080-04-23T03:08:45+08:00", "utc": "2080-04-22T19:08:45Z", "ms": 3481038524737.945 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-22T05:25:13+08:00", "utc": "2080-04-21T21:25:13Z", "ms": 3480960312635.5684 }, "end": { "local": "2080-04-23T03:08:45+08:00", "utc": "2080-04-22T19:08:45Z", "ms": 3481038524737.945 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-04-21", "window": { "start": { "local": "2080-04-21T18:29:33+08:00", "utc": "2080-04-21T10:29:33Z", "ms": 3480920972589.3467 }, "end": { "local": "2080-04-21T19:58:02+08:00", "utc": "2080-04-21T11:58:02Z", "ms": 3480926281898.6577 } }, "covered_min": 0, "window_min": 88, "qualifies": false }, { "local_date": "2080-04-22", "window": { "start": { "local": "2080-04-22T18:30:03+08:00", "utc": "2080-04-22T10:30:03Z", "ms": 3481007403120.0625 }, "end": { "local": "2080-04-22T19:58:21+08:00", "utc": "2080-04-22T11:58:21Z", "ms": 3481012701349.4634 } }, "covered_min": 88, "window_min": 88, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 05:25 on Mon 22 Apr to 03:09 on Tue 23 Apr.", "fact": "2080-04-21T21:25:13Z → 2080-04-22T19:08:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:30–19:58 on the 21st, 18:30–19:58 on the 22nd.", "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 88 minutes on the 21st and 88 of 88 on the 22nd.", "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 25823 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Fuzhou, 2080: Monday 22 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed)." } ], "kaala": "pradosha", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Paraśurāma Jayantī 2080 falls on Monday 22 April. Tṛtīyā runs from 05:25 on Mon 22 Apr to 03:09 on Tue 23 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vinayaka-chaturthi?on=2080-04-23", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30522, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-04-23T03:08:45+08:00", "utc": "2080-04-22T19:08:45Z", "ms": 3481038524737.945 }, "end": { "local": "2080-04-24T00:42:23+08:00", "utc": "2080-04-23T16:42:23Z", "ms": 3481116143337.6357 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-23T03:08:45+08:00", "utc": "2080-04-22T19:08:45Z", "ms": 3481038524737.945 }, "end": { "local": "2080-04-24T00:42:23+08:00", "utc": "2080-04-23T16:42:23Z", "ms": 3481116143337.6357 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-04-23", "window": { "start": { "local": "2080-04-23T11:37:27+08:00", "utc": "2080-04-23T03:37:27Z", "ms": 3481069046820.3516 }, "end": { "local": "2080-04-23T12:25:27+08:00", "utc": "2080-04-23T04:25:27Z", "ms": 3481071926820.3516 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-04-24", "window": { "start": { "local": "2080-04-24T11:37:16+08:00", "utc": "2080-04-24T03:37:16Z", "ms": 3481155436329.958 }, "end": { "local": "2080-04-24T12:25:16+08:00", "utc": "2080-04-24T04:25:16Z", "ms": 3481158316329.958 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:09 on Tue 23 Apr to 00:42 on Wed 24 Apr.", "fact": "2080-04-22T19:08:45Z → 2080-04-23T16:42:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 23rd, 11:37–12:25 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30522 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2080: Tuesday 23 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": "2080-04-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-23", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2080 falls on Tuesday 23 April. Caturthī runs from 03:09 on Tue 23 Apr to 00:42 on Wed 24 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-04-23", "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/2080/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35234, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2080-04-24T00:42:23+08:00", "utc": "2080-04-23T16:42:23Z", "ms": 3481116143337.6357 }, "end": { "local": "2080-04-24T22:12:31+08:00", "utc": "2080-04-24T14:12:31Z", "ms": 3481193550817.6245 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-24T00:42:23+08:00", "utc": "2080-04-23T16:42:23Z", "ms": 3481116143337.6357 }, "end": { "local": "2080-04-24T22:12:31+08:00", "utc": "2080-04-24T14:12:31Z", "ms": 3481193550817.6245 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-04-23", "window": { "start": { "local": "2080-04-23T11:37:27+08:00", "utc": "2080-04-23T03:37:27Z", "ms": 3481069046820.3516 }, "end": { "local": "2080-04-23T12:25:27+08:00", "utc": "2080-04-23T04:25:27Z", "ms": 3481071926820.3516 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-04-24", "window": { "start": { "local": "2080-04-24T11:37:16+08:00", "utc": "2080-04-24T03:37:16Z", "ms": 3481155436329.958 }, "end": { "local": "2080-04-24T12:25:16+08:00", "utc": "2080-04-24T04:25:16Z", "ms": 3481158316329.958 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 00:42 on Wed 24 Apr to 22:13 on Wed 24 Apr.", "fact": "2080-04-23T16:42:23Z → 2080-04-24T14:12:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 23rd, 11:37–12:25 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35234 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Fuzhou, 2080: Wednesday 24 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shankara-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Sankara jayanti." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-04-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Śaṅkara Jayantī 2080 falls on Wednesday 24 April. Pañcamī runs from 00:42 on Wed 24 Apr to 22:13 on Wed 24 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17937, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2080-04-25T19:44:46+08:00", "utc": "2080-04-25T11:44:46Z", "ms": 3481271085976.781 }, "end": { "local": "2080-04-26T17:23:54+08:00", "utc": "2080-04-26T09:23:54Z", "ms": 3481349033770.4185 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-25T19:44:46+08:00", "utc": "2080-04-25T11:44:46Z", "ms": 3481271085976.781 }, "end": { "local": "2080-04-26T17:23:54+08:00", "utc": "2080-04-26T09:23:54Z", "ms": 3481349033770.4185 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-04-25", "window": { "start": { "local": "2080-04-25T11:37:06+08:00", "utc": "2080-04-25T03:37:06Z", "ms": 3481241826300.7803 }, "end": { "local": "2080-04-25T12:25:06+08:00", "utc": "2080-04-25T04:25:06Z", "ms": 3481244706300.7803 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-04-26", "window": { "start": { "local": "2080-04-26T11:36:57+08:00", "utc": "2080-04-26T03:36:57Z", "ms": 3481328216740.617 }, "end": { "local": "2080-04-26T12:24:57+08:00", "utc": "2080-04-26T04:24:57Z", "ms": 3481331096740.617 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 19:45 on Thu 25 Apr to 17:24 on Fri 26 Apr.", "fact": "2080-04-25T11:44:46Z → 2080-04-26T09:23:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 25th, 11:37–12:25 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17937 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Fuzhou, 2080: Friday 26 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-04-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaṅgotpatti (Ganga Saptami) 2080 falls on Friday 26 April. Saptamī runs from 19:45 on Thu 25 Apr to 17:24 on Fri 26 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-04-30", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17186, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-04-29T11:36:16+08:00", "utc": "2080-04-29T03:36:16Z", "ms": 3481587375592.8867 }, "end": { "local": "2080-04-30T10:13:01+08:00", "utc": "2080-04-30T02:13:01Z", "ms": 3481668780773.274 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-29T11:36:16+08:00", "utc": "2080-04-29T03:36:16Z", "ms": 3481587375592.8867 }, "end": { "local": "2080-04-30T10:13:01+08:00", "utc": "2080-04-30T02:13:01Z", "ms": 3481668780773.274 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-04-29", "window": { "start": { "local": "2080-04-29T05:27:21+08:00", "utc": "2080-04-28T21:27:21Z", "ms": 3481565241197.57 }, "end": { "local": "2080-04-29T05:27:21+08:00", "utc": "2080-04-28T21:27:21Z", "ms": 3481565241197.57 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-04-30", "window": { "start": { "local": "2080-04-30T05:26:34+08:00", "utc": "2080-04-29T21:26:34Z", "ms": 3481651594419.3374 }, "end": { "local": "2080-04-30T05:26:34+08:00", "utc": "2080-04-29T21:26:34Z", "ms": 3481651594419.3374 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:36 on Mon 29 Apr to 10:13 on Tue 30 Apr.", "fact": "2080-04-29T03:36:16Z → 2080-04-30T02:13:01Z" }, { "step": "kaala", "text": "Sunrise is at 05:27 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 17186 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Fuzhou, 2080: Tuesday 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": "2080-04-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Mohinī Ekādaśī 2080 falls on Tuesday 30 April. Ekādaśī runs from 11:36 on Mon 29 Apr to 10:13 on Tue 30 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-04-30", "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/2080/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5003, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2080-04-30T10:13:01+08:00", "utc": "2080-04-30T02:13:01Z", "ms": 3481668780773.274 }, "end": { "local": "2080-05-01T09:09:00+08:00", "utc": "2080-05-01T01:09:00Z", "ms": 3481751340206.0303 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-30T10:13:01+08:00", "utc": "2080-04-30T02:13:01Z", "ms": 3481668780773.274 }, "end": { "local": "2080-05-01T09:09:00+08:00", "utc": "2080-05-01T01:09:00Z", "ms": 3481751340206.0303 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-04-30", "window": { "start": { "local": "2080-04-30T11:36:23+08:00", "utc": "2080-04-30T03:36:23Z", "ms": 3481673783367.7056 }, "end": { "local": "2080-04-30T12:24:23+08:00", "utc": "2080-04-30T04:24:23Z", "ms": 3481676663367.7056 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-05-01", "window": { "start": { "local": "2080-05-01T11:36:16+08:00", "utc": "2080-05-01T03:36:16Z", "ms": 3481760176290.125 }, "end": { "local": "2080-05-01T12:24:16+08:00", "utc": "2080-05-01T04:24:16Z", "ms": 3481763056290.125 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 10:13 on Tue 30 Apr to 09:09 on Wed 1 May.", "fact": "2080-04-30T02:13:01Z → 2080-05-01T01:09:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 30th, 11:36–12:24 on the 1st.", "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 30th and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5003 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Fuzhou, 2080: Tuesday 30 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-04-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Paraśurāma Dvādaśī 2080 falls on Tuesday 30 April. Dvādaśī runs from 10:13 on Tue 30 Apr to 09:09 on Wed 1 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-04-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5003, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2080-04-30T10:13:01+08:00", "utc": "2080-04-30T02:13:01Z", "ms": 3481668780773.274 }, "end": { "local": "2080-05-01T09:09:00+08:00", "utc": "2080-05-01T01:09:00Z", "ms": 3481751340206.0303 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-04-30T10:13:01+08:00", "utc": "2080-04-30T02:13:01Z", "ms": 3481668780773.274 }, "end": { "local": "2080-05-01T09:09:00+08:00", "utc": "2080-05-01T01:09:00Z", "ms": 3481751340206.0303 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-04-30", "window": { "start": { "local": "2080-04-30T11:36:23+08:00", "utc": "2080-04-30T03:36:23Z", "ms": 3481673783367.7056 }, "end": { "local": "2080-04-30T12:24:23+08:00", "utc": "2080-04-30T04:24:23Z", "ms": 3481676663367.7056 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-05-01", "window": { "start": { "local": "2080-05-01T11:36:16+08:00", "utc": "2080-05-01T03:36:16Z", "ms": 3481760176290.125 }, "end": { "local": "2080-05-01T12:24:16+08:00", "utc": "2080-05-01T04:24:16Z", "ms": 3481763056290.125 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 10:13 on Tue 30 Apr to 09:09 on Wed 1 May.", "fact": "2080-04-30T02:13:01Z → 2080-05-01T01:09:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 30th, 11:36–12:24 on the 1st.", "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 30th and 0 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 5003 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Fuzhou, 2080: Tuesday 30 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rukmini-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-04-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-04-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Rukmiṇī Dvādaśī 2080 falls on Tuesday 30 April. Dvādaśī runs from 10:13 on Tue 30 Apr to 09:09 on Wed 1 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/pradosha-vrata?on=2080-05-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33944, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-05-01T09:09:00+08:00", "utc": "2080-05-01T01:09:00Z", "ms": 3481751340206.0303 }, "end": { "local": "2080-05-02T08:26:01+08:00", "utc": "2080-05-02T00:26:01Z", "ms": 3481835161039.5244 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-01T09:09:00+08:00", "utc": "2080-05-01T01:09:00Z", "ms": 3481751340206.0303 }, "end": { "local": "2080-05-02T08:26:01+08:00", "utc": "2080-05-02T00:26:01Z", "ms": 3481835161039.5244 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-05-01", "window": { "start": { "local": "2080-05-01T18:34:44+08:00", "utc": "2080-05-01T10:34:44Z", "ms": 3481785284023.5835 }, "end": { "local": "2080-05-01T20:01:27+08:00", "utc": "2080-05-01T12:01:27Z", "ms": 3481790486638.0654 } }, "covered_min": 87, "window_min": 87, "qualifies": true }, { "local_date": "2080-05-02", "window": { "start": { "local": "2080-05-02T18:35:16+08:00", "utc": "2080-05-02T10:35:16Z", "ms": 3481871715845.678 }, "end": { "local": "2080-05-02T20:01:48+08:00", "utc": "2080-05-02T12:01:48Z", "ms": 3481876908355.376 } }, "covered_min": 0, "window_min": 87, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:09 on Wed 1 May to 08:26 on Thu 2 May.", "fact": "2080-05-01T01:09:00Z → 2080-05-02T00:26:01Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:35–20:01 on the 1st, 18:35–20:02 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 33944 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Wednesday 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": "2080-05-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Wednesday 1 May. Trayodaśī runs from 09:09 on Wed 1 May to 08:26 on Thu 2 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-05-01", "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/2080/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36555, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-05-02T08:26:01+08:00", "utc": "2080-05-02T00:26:01Z", "ms": 3481835161039.5244 }, "end": { "local": "2080-05-03T08:06:05+08:00", "utc": "2080-05-03T00:06:05Z", "ms": 3481920364658.3955 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-02T08:26:01+08:00", "utc": "2080-05-02T00:26:01Z", "ms": 3481835161039.5244 }, "end": { "local": "2080-05-03T08:06:05+08:00", "utc": "2080-05-03T00:06:05Z", "ms": 3481920364658.3955 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-05-02", "window": { "start": { "local": "2080-05-02T18:35:16+08:00", "utc": "2080-05-02T10:35:16Z", "ms": 3481871715845.678 }, "end": { "local": "2080-05-02T20:01:48+08:00", "utc": "2080-05-02T12:01:48Z", "ms": 3481876908355.376 } }, "covered_min": 87, "window_min": 87, "qualifies": true }, { "local_date": "2080-05-03", "window": { "start": { "local": "2080-05-03T18:35:48+08:00", "utc": "2080-05-03T10:35:48Z", "ms": 3481958147779.2886 }, "end": { "local": "2080-05-03T20:02:10+08:00", "utc": "2080-05-03T12:02:10Z", "ms": 3481963330300.3843 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 08:26 on Thu 2 May to 08:06 on Fri 3 May.", "fact": "2080-05-02T00:26:01Z → 2080-05-03T00:06:05Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:35–20:02 on the 2nd, 18:36–20:02 on the 3rd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 87 of 87 minutes on the 2nd and 0 of 86 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36555 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Fuzhou, 2080: Thursday 2 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": "2080-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 2080 falls on Thursday 2 May. Caturdaśī runs from 08:26 on Thu 2 May to 08:06 on Fri 3 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12277, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-05-03T08:06:05+08:00", "utc": "2080-05-03T00:06:05Z", "ms": 3481920364658.3955 }, "end": { "local": "2080-05-04T08:11:21+08:00", "utc": "2080-05-04T00:11:21Z", "ms": 3482007081157.394 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-03T08:06:05+08:00", "utc": "2080-05-03T00:06:05Z", "ms": 3481920364658.3955 }, "end": { "local": "2080-05-04T08:11:21+08:00", "utc": "2080-05-04T00:11:21Z", "ms": 3482007081157.394 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-05-03", "window": { "start": { "local": "2080-05-03T11:36:04+08:00", "utc": "2080-05-03T03:36:04Z", "ms": 3481932963723.8496 }, "end": { "local": "2080-05-03T12:24:04+08:00", "utc": "2080-05-03T04:24:04Z", "ms": 3481935843723.8496 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-05-04", "window": { "start": { "local": "2080-05-04T11:35:58+08:00", "utc": "2080-05-04T03:35:58Z", "ms": 3482019358253.9688 }, "end": { "local": "2080-05-04T12:23:58+08:00", "utc": "2080-05-04T04:23:58Z", "ms": 3482022238253.9688 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:06 on Fri 3 May to 08:11 on Sat 4 May.", "fact": "2080-05-03T00:06:05Z → 2080-05-04T00:11:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 3rd, 11:36–12:24 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12277 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Fuzhou, 2080: Friday 3 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": "2080-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Buddha Pūrṇimā 2080 falls on Friday 3 May. Pūrṇimā runs from 08:06 on Fri 3 May to 08:11 on Sat 4 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12277, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-05-03T08:06:05+08:00", "utc": "2080-05-03T00:06:05Z", "ms": 3481920364658.3955 }, "end": { "local": "2080-05-04T08:11:21+08:00", "utc": "2080-05-04T00:11:21Z", "ms": 3482007081157.394 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-03T08:06:05+08:00", "utc": "2080-05-03T00:06:05Z", "ms": 3481920364658.3955 }, "end": { "local": "2080-05-04T08:11:21+08:00", "utc": "2080-05-04T00:11:21Z", "ms": 3482007081157.394 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-05-03", "window": { "start": { "local": "2080-05-03T11:36:04+08:00", "utc": "2080-05-03T03:36:04Z", "ms": 3481932963723.8496 }, "end": { "local": "2080-05-03T12:24:04+08:00", "utc": "2080-05-03T04:24:04Z", "ms": 3481935843723.8496 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-05-04", "window": { "start": { "local": "2080-05-04T11:35:58+08:00", "utc": "2080-05-04T03:35:58Z", "ms": 3482019358253.9688 }, "end": { "local": "2080-05-04T12:23:58+08:00", "utc": "2080-05-04T04:23:58Z", "ms": 3482022238253.9688 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 08:06 on Fri 3 May to 08:11 on Sat 4 May.", "fact": "2080-05-03T00:06:05Z → 2080-05-04T00:11:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 3rd, 11:36–12:24 on the 4th.", "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 3rd and 0 of 48 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12277 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Fuzhou, 2080: Friday 3 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": "2080-05-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Sampat Gaurī Vrata 2080 falls on Friday 3 May. Pūrṇimā runs from 08:06 on Fri 3 May to 08:11 on Sat 4 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-05-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34801, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-05-07T11:13:31+08:00", "utc": "2080-05-07T03:13:31Z", "ms": 3482277211399.5156 }, "end": { "local": "2080-05-08T13:07:36+08:00", "utc": "2080-05-08T05:07:36Z", "ms": 3482370455858.093 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-07T11:13:31+08:00", "utc": "2080-05-07T03:13:31Z", "ms": 3482277211399.5156 }, "end": { "local": "2080-05-08T13:07:36+08:00", "utc": "2080-05-08T05:07:36Z", "ms": 3482370455858.093 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-05-07", "window": { "start": { "local": "2080-05-07T21:56:20+08:00", "utc": "2080-05-07T13:56:20Z", "ms": 3482315779921.6426 }, "end": { "local": "2080-05-07T21:56:20+08:00", "utc": "2080-05-07T13:56:20Z", "ms": 3482315779921.6426 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-05-08", "window": { "start": { "local": "2080-05-08T22:47:37+08:00", "utc": "2080-05-08T14:47:37Z", "ms": 3482405256822.4785 }, "end": { "local": "2080-05-08T22:47:37+08:00", "utc": "2080-05-08T14:47:37Z", "ms": 3482405256822.4785 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:14 on Tue 7 May to 13:08 on Wed 8 May.", "fact": "2080-05-07T03:13:31Z → 2080-05-08T05:07:36Z" }, { "step": "kaala", "text": "Moonrise is at 21:56 on the 7th and 22:48 on the 8th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 7th and is not on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34801 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Tuesday 7 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Tuesday 7 May. Caturthī runs from 11:14 on Tue 7 May to 13:08 on Wed 8 May and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-05-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/ekadashi?on=2080-05-15", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14887, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-05-15T00:52:15+08:00", "utc": "2080-05-14T16:52:15Z", "ms": 3482931134978.364 }, "end": { "local": "2080-05-16T01:08:17+08:00", "utc": "2080-05-15T17:08:17Z", "ms": 3483018497467.449 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-15T00:52:15+08:00", "utc": "2080-05-14T16:52:15Z", "ms": 3482931134978.364 }, "end": { "local": "2080-05-16T01:08:17+08:00", "utc": "2080-05-15T17:08:17Z", "ms": 3483018497467.449 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-05-15", "window": { "start": { "local": "2080-05-15T05:16:55+08:00", "utc": "2080-05-14T21:16:55Z", "ms": 3482947014570.6543 }, "end": { "local": "2080-05-15T05:16:55+08:00", "utc": "2080-05-14T21:16:55Z", "ms": 3482947014570.6543 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-05-16", "window": { "start": { "local": "2080-05-16T05:16:25+08:00", "utc": "2080-05-15T21:16:25Z", "ms": 3483033384895.463 }, "end": { "local": "2080-05-16T05:16:25+08:00", "utc": "2080-05-15T21:16:25Z", "ms": 3483033384895.463 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:52 on Wed 15 May to 01:08 on Thu 16 May.", "fact": "2080-05-14T16:52:15Z → 2080-05-15T17:08:17Z" }, { "step": "kaala", "text": "Sunrise is at 05:17 on the 15th and 05:16 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 14887 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Fuzhou, 2080: Wednesday 15 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-05-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Aparā Ekādaśī 2080 falls on Wednesday 15 May. Ekādaśī runs from 00:52 on Wed 15 May to 01:08 on Thu 16 May and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-05-15", "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/2080/pradosha-vrata?on=2080-05-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11648, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-05-17T00:37:32+08:00", "utc": "2080-05-16T16:37:32Z", "ms": 3483103052103.4473 }, "end": { "local": "2080-05-17T23:21:47+08:00", "utc": "2080-05-17T15:21:47Z", "ms": 3483184907022.042 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-17T00:37:32+08:00", "utc": "2080-05-16T16:37:32Z", "ms": 3483103052103.4473 }, "end": { "local": "2080-05-17T23:21:47+08:00", "utc": "2080-05-17T15:21:47Z", "ms": 3483184907022.042 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-05-16", "window": { "start": { "local": "2080-05-16T18:42:49+08:00", "utc": "2080-05-16T10:42:49Z", "ms": 3483081769364.3926 }, "end": { "local": "2080-05-16T20:07:14+08:00", "utc": "2080-05-16T12:07:14Z", "ms": 3483086834306.109 } }, "covered_min": 0, "window_min": 84, "qualifies": false }, { "local_date": "2080-05-17", "window": { "start": { "local": "2080-05-17T18:43:22+08:00", "utc": "2080-05-17T10:43:22Z", "ms": 3483168201803.055 }, "end": { "local": "2080-05-17T20:07:39+08:00", "utc": "2080-05-17T12:07:39Z", "ms": 3483173258785.965 } }, "covered_min": 84, "window_min": 84, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:38 on Fri 17 May to 23:22 on Fri 17 May.", "fact": "2080-05-16T16:37:32Z → 2080-05-17T15:21:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:43–20:07 on the 16th, 18:43–20:08 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 84 minutes on the 16th and 84 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 11648 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Friday 17 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Friday 17 May. Trayodaśī runs from 00:38 on Fri 17 May to 23:22 on Fri 17 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-05-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/shivaratri?on=2080-05-17", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 818, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-05-17T23:21:47+08:00", "utc": "2080-05-17T15:21:47Z", "ms": 3483184907022.042 }, "end": { "local": "2080-05-18T21:26:05+08:00", "utc": "2080-05-18T13:26:05Z", "ms": 3483264364855.312 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-17T23:21:47+08:00", "utc": "2080-05-17T15:21:47Z", "ms": 3483184907022.042 }, "end": { "local": "2080-05-18T21:26:05+08:00", "utc": "2080-05-18T13:26:05Z", "ms": 3483264364855.312 } }, "kaala": "nishita", "days": [ { "local_date": "2080-05-17", "window": { "start": { "local": "2080-05-17T23:35:25+08:00", "utc": "2080-05-17T15:35:25Z", "ms": 3483185725488.966 }, "end": { "local": "2080-05-18T00:23:25+08:00", "utc": "2080-05-17T16:23:25Z", "ms": 3483188605488.966 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-05-18", "window": { "start": { "local": "2080-05-18T23:35:29+08:00", "utc": "2080-05-18T15:35:29Z", "ms": 3483272128644.201 }, "end": { "local": "2080-05-19T00:23:29+08:00", "utc": "2080-05-18T16:23:29Z", "ms": 3483275008644.201 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:22 on Fri 17 May to 21:26 on Sat 18 May.", "fact": "2080-05-17T15:21:47Z → 2080-05-18T13:26:05Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 on the 17th, 23:35–00:23 on the 18th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 818 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Friday 17 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": "2080-05-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Friday 17 May. Caturdaśī runs from 23:22 on Fri 17 May to 21:26 on Sat 18 May and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-05-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2124, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2080-05-21T12:59:16+08:00", "utc": "2080-05-21T04:59:16Z", "ms": 3483493156113.0254 }, "end": { "local": "2080-05-22T09:48:03+08:00", "utc": "2080-05-22T01:48:03Z", "ms": 3483568082535.769 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-21T12:59:16+08:00", "utc": "2080-05-21T04:59:16Z", "ms": 3483493156113.0254 }, "end": { "local": "2080-05-22T09:48:03+08:00", "utc": "2080-05-22T01:48:03Z", "ms": 3483568082535.769 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-05-21", "window": { "start": { "local": "2080-05-21T11:35:53+08:00", "utc": "2080-05-21T03:35:53Z", "ms": 3483488152535.133 }, "end": { "local": "2080-05-21T12:23:53+08:00", "utc": "2080-05-21T04:23:53Z", "ms": 3483491032535.133 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-05-22", "window": { "start": { "local": "2080-05-22T11:35:57+08:00", "utc": "2080-05-22T03:35:57Z", "ms": 3483574557198.639 }, "end": { "local": "2080-05-22T12:23:57+08:00", "utc": "2080-05-22T04:23:57Z", "ms": 3483577437198.639 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 12:59 on Tue 21 May to 09:48 on Wed 22 May.", "fact": "2080-05-21T04:59:16Z → 2080-05-22T01:48:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 21st, 11:36–12:24 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 2124 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Fuzhou, 2080: Wednesday 22 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rambha-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Rambha trtiya (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Rambhā Tṛtīyā 2080 falls on Wednesday 22 May. Tṛtīyā runs from 12:59 on Tue 21 May to 09:48 on Wed 22 May, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vinayaka-chaturthi?on=2080-05-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6475, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-05-22T09:48:03+08:00", "utc": "2080-05-22T01:48:03Z", "ms": 3483568082535.769 }, "end": { "local": "2080-05-23T06:41:05+08:00", "utc": "2080-05-22T22:41:05Z", "ms": 3483643264679.8965 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-22T09:48:03+08:00", "utc": "2080-05-22T01:48:03Z", "ms": 3483568082535.769 }, "end": { "local": "2080-05-23T06:41:05+08:00", "utc": "2080-05-22T22:41:05Z", "ms": 3483643264679.8965 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-05-22", "window": { "start": { "local": "2080-05-22T11:35:57+08:00", "utc": "2080-05-22T03:35:57Z", "ms": 3483574557198.639 }, "end": { "local": "2080-05-22T12:23:57+08:00", "utc": "2080-05-22T04:23:57Z", "ms": 3483577437198.639 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-05-23", "window": { "start": { "local": "2080-05-23T11:36:02+08:00", "utc": "2080-05-23T03:36:02Z", "ms": 3483660962357.623 }, "end": { "local": "2080-05-23T12:24:02+08:00", "utc": "2080-05-23T04:24:02Z", "ms": 3483663842357.623 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:48 on Wed 22 May to 06:41 on Thu 23 May.", "fact": "2080-05-22T01:48:03Z → 2080-05-22T22:41:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 22nd, 11:36–12:24 on the 23rd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 6475 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2080: Wednesday 22 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": "2080-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2080 falls on Wednesday 22 May. Caturthī runs from 09:48 on Wed 22 May to 06:41 on Thu 23 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-05-22", "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/2080/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28177, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2080-05-24T03:46:31+08:00", "utc": "2080-05-23T19:46:31Z", "ms": 3483719190964.7944 }, "end": { "local": "2080-05-25T01:11:10+08:00", "utc": "2080-05-24T17:11:10Z", "ms": 3483796269639.628 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-24T03:46:31+08:00", "utc": "2080-05-23T19:46:31Z", "ms": 3483719190964.7944 }, "end": { "local": "2080-05-25T01:11:10+08:00", "utc": "2080-05-24T17:11:10Z", "ms": 3483796269639.628 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-05-24", "window": { "start": { "local": "2080-05-24T11:36:08+08:00", "utc": "2080-05-24T03:36:08Z", "ms": 3483747367997.9844 }, "end": { "local": "2080-05-24T12:24:08+08:00", "utc": "2080-05-24T04:24:08Z", "ms": 3483750247997.9844 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-05-25", "window": { "start": { "local": "2080-05-25T11:36:14+08:00", "utc": "2080-05-25T03:36:14Z", "ms": 3483833774106.2246 }, "end": { "local": "2080-05-25T12:24:14+08:00", "utc": "2080-05-25T04:24:14Z", "ms": 3483836654106.2246 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 03:47 on Fri 24 May to 01:11 on Sat 25 May.", "fact": "2080-05-23T19:46:31Z → 2080-05-24T17:11:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 24th, 11:36–12:24 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28177 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Fuzhou, 2080: Friday 24 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aranya-gauri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-05-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Araṇya Gaurī Vrata 2080 falls on Friday 24 May. Ṣaṣṭhī runs from 03:47 on Fri 24 May to 01:11 on Sat 25 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28177, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2080-05-24T03:46:31+08:00", "utc": "2080-05-23T19:46:31Z", "ms": 3483719190964.7944 }, "end": { "local": "2080-05-25T01:11:10+08:00", "utc": "2080-05-24T17:11:10Z", "ms": 3483796269639.628 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-24T03:46:31+08:00", "utc": "2080-05-23T19:46:31Z", "ms": 3483719190964.7944 }, "end": { "local": "2080-05-25T01:11:10+08:00", "utc": "2080-05-24T17:11:10Z", "ms": 3483796269639.628 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-05-24", "window": { "start": { "local": "2080-05-24T11:36:08+08:00", "utc": "2080-05-24T03:36:08Z", "ms": 3483747367997.9844 }, "end": { "local": "2080-05-24T12:24:08+08:00", "utc": "2080-05-24T04:24:08Z", "ms": 3483750247997.9844 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-05-25", "window": { "start": { "local": "2080-05-25T11:36:14+08:00", "utc": "2080-05-25T03:36:14Z", "ms": 3483833774106.2246 }, "end": { "local": "2080-05-25T12:24:14+08:00", "utc": "2080-05-25T04:24:14Z", "ms": 3483836654106.2246 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 03:47 on Fri 24 May to 01:11 on Sat 25 May.", "fact": "2080-05-23T19:46:31Z → 2080-05-24T17:11:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 24th, 11:36–12:24 on the 25th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 0 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 28177 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Fuzhou, 2080: Friday 24 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi-jyaishtha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Aranya sasthi, Aranya gauri vrata, (paraviddha), Skanda sasthi, (purvaviddha), Sitala sasthi yatra (Orissa)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-05-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Skanda Ṣaṣṭhī (Jyaiṣṭha) 2080 falls on Friday 24 May. Ṣaṣṭhī runs from 03:47 on Fri 24 May to 01:11 on Sat 25 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-05-29", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35719, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-05-28T19:16:32+08:00", "utc": "2080-05-28T11:16:32Z", "ms": 3484120591896.6914 }, "end": { "local": "2080-05-29T18:58:15+08:00", "utc": "2080-05-29T10:58:15Z", "ms": 3484205895370.1987 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-28T19:16:32+08:00", "utc": "2080-05-28T11:16:32Z", "ms": 3484120591896.6914 }, "end": { "local": "2080-05-29T18:58:15+08:00", "utc": "2080-05-29T10:58:15Z", "ms": 3484205895370.1987 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-05-29", "window": { "start": { "local": "2080-05-29T05:11:51+08:00", "utc": "2080-05-28T21:11:51Z", "ms": 3484156310773.354 }, "end": { "local": "2080-05-29T05:11:51+08:00", "utc": "2080-05-28T21:11:51Z", "ms": 3484156310773.354 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-05-30", "window": { "start": { "local": "2080-05-30T05:11:38+08:00", "utc": "2080-05-29T21:11:38Z", "ms": 3484242698372.655 }, "end": { "local": "2080-05-30T05:11:38+08:00", "utc": "2080-05-29T21:11:38Z", "ms": 3484242698372.655 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:17 on Tue 28 May to 18:58 on Wed 29 May.", "fact": "2080-05-28T11:16:32Z → 2080-05-29T10:58:15Z" }, { "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 35719 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Fuzhou, 2080: Wednesday 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": "2080-05-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Nirjalā Ekādaśī 2080 falls on Wednesday 29 May. Ekādaśī runs from 19:17 on Tue 28 May to 18:58 on Wed 29 May and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-05-29", "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/2080/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23612, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2080-05-29T18:58:15+08:00", "utc": "2080-05-29T10:58:15Z", "ms": 3484205895370.1987 }, "end": { "local": "2080-05-30T19:05:38+08:00", "utc": "2080-05-30T11:05:38Z", "ms": 3484292738073.2173 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-29T18:58:15+08:00", "utc": "2080-05-29T10:58:15Z", "ms": 3484205895370.1987 }, "end": { "local": "2080-05-30T19:05:38+08:00", "utc": "2080-05-30T11:05:38Z", "ms": 3484292738073.2173 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-05-29", "window": { "start": { "local": "2080-05-29T11:36:43+08:00", "utc": "2080-05-29T03:36:43Z", "ms": 3484179402969.1025 }, "end": { "local": "2080-05-29T12:24:43+08:00", "utc": "2080-05-29T04:24:43Z", "ms": 3484182282969.1025 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-05-30", "window": { "start": { "local": "2080-05-30T11:36:51+08:00", "utc": "2080-05-30T03:36:51Z", "ms": 3484265811232.8906 }, "end": { "local": "2080-05-30T12:24:51+08:00", "utc": "2080-05-30T04:24:51Z", "ms": 3484268691232.8906 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 18:58 on Wed 29 May to 19:06 on Thu 30 May.", "fact": "2080-05-29T10:58:15Z → 2080-05-30T11:05:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 29th, 11:37–12:25 on the 30th.", "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 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 23612 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Fuzhou, 2080: Thursday 30 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-rama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Śrī Rāma Dvādaśī 2080 falls on Thursday 30 May. Dvādaśī runs from 18:58 on Wed 29 May to 19:06 on Thu 30 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/pradosha-vrata?on=2080-05-30", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-05-30", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 934, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-05-30T19:05:38+08:00", "utc": "2080-05-30T11:05:38Z", "ms": 3484292738073.2173 }, "end": { "local": "2080-05-31T19:36:59+08:00", "utc": "2080-05-31T11:36:59Z", "ms": 3484381018840.633 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-05-30T19:05:38+08:00", "utc": "2080-05-30T11:05:38Z", "ms": 3484292738073.2173 }, "end": { "local": "2080-05-31T19:36:59+08:00", "utc": "2080-05-31T11:36:59Z", "ms": 3484381018840.633 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-05-30", "window": { "start": { "local": "2080-05-30T18:50:04+08:00", "utc": "2080-05-30T10:50:04Z", "ms": 3484291804093.127 }, "end": { "local": "2080-05-30T20:12:55+08:00", "utc": "2080-05-30T12:12:55Z", "ms": 3484296775176.734 } }, "covered_min": 67, "window_min": 83, "qualifies": true }, { "local_date": "2080-05-31", "window": { "start": { "local": "2080-05-31T18:50:33+08:00", "utc": "2080-05-31T10:50:33Z", "ms": 3484378232563.9917 }, "end": { "local": "2080-05-31T20:13:19+08:00", "utc": "2080-05-31T12:13:19Z", "ms": 3484383198530.8716 } }, "covered_min": 46, "window_min": 83, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:06 on Thu 30 May to 19:37 on Fri 31 May.", "fact": "2080-05-30T11:05:38Z → 2080-05-31T11:36:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:50–20:13 on the 30th, 18:51–20:13 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 67 of 83 minutes on the 30th and 46 of 83 on the 31st.", "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 934 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Thursday 30 May.", "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": "2080-05-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-05-30", "confidence": "boundary" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Thursday 30 May. Trayodaśī runs from 19:06 on Thu 30 May to 19:37 on Fri 31 May and covers 67 of 83 minutes of pradoṣa that evening. It also reaches the next evening for 46 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/2080/pradosha-vrata?on=2080-05-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1041, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-06-01T20:31:02+08:00", "utc": "2080-06-01T12:31:02Z", "ms": 3484470662294.7734 }, "end": { "local": "2080-06-02T21:46:58+08:00", "utc": "2080-06-02T13:46:58Z", "ms": 3484561617548.838 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-01T20:31:02+08:00", "utc": "2080-06-01T12:31:02Z", "ms": 3484470662294.7734 }, "end": { "local": "2080-06-02T21:46:58+08:00", "utc": "2080-06-02T13:46:58Z", "ms": 3484561617548.838 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-06-01", "window": { "start": { "local": "2080-06-01T18:51:01+08:00", "utc": "2080-06-01T10:51:01Z", "ms": 3484464660552.8706 }, "end": { "local": "2080-06-01T20:13:42+08:00", "utc": "2080-06-01T12:13:42Z", "ms": 3484469621633.5234 } }, "covered_min": 0, "window_min": 83, "qualifies": false }, { "local_date": "2080-06-02", "window": { "start": { "local": "2080-06-02T18:51:28+08:00", "utc": "2080-06-02T10:51:28Z", "ms": 3484551088034.895 }, "end": { "local": "2080-06-02T20:14:04+08:00", "utc": "2080-06-02T12:14:04Z", "ms": 3484556044462.8706 } }, "covered_min": 83, "window_min": 83, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 20:31 on Sat 1 Jun to 21:47 on Sun 2 Jun.", "fact": "2080-06-01T12:31:02Z → 2080-06-02T13:46:58Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:14 on the 1st, 18:51–20:14 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 83 minutes on the 1st and 83 of 83 on the 2nd.", "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 1041 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Fuzhou, 2080: Sunday 2 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vata-savitri-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Vata-savitri vrata (Deccan) (pradosavyapini, purvaviddha), Snanayatra (Bengal & Orissa) (paraviddha)." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-06-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Vaṭa Sāvitrī Vrata 2080 falls on Sunday 2 June. Pūrṇimā runs from 20:31 on Sat 1 Jun to 21:47 on Sun 2 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-06-06", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21854, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-06-06T03:32:59+08:00", "utc": "2080-06-05T19:32:59Z", "ms": 3484841579141.96 }, "end": { "local": "2080-06-07T05:56:23+08:00", "utc": "2080-06-06T21:56:23Z", "ms": 3484936583136.406 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-06T03:32:59+08:00", "utc": "2080-06-05T19:32:59Z", "ms": 3484841579141.96 }, "end": { "local": "2080-06-07T05:56:23+08:00", "utc": "2080-06-06T21:56:23Z", "ms": 3484936583136.406 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-06-05", "window": { "start": { "local": "2080-06-05T21:28:45+08:00", "utc": "2080-06-05T13:28:45Z", "ms": 3484819724921.879 }, "end": { "local": "2080-06-05T21:28:45+08:00", "utc": "2080-06-05T13:28:45Z", "ms": 3484819724921.879 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-06-06", "window": { "start": { "local": "2080-06-06T22:11:16+08:00", "utc": "2080-06-06T14:11:16Z", "ms": 3484908675818.1875 }, "end": { "local": "2080-06-06T22:11:16+08:00", "utc": "2080-06-06T14:11:16Z", "ms": 3484908675818.1875 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:33 on Thu 6 Jun to 05:56 on Fri 7 Jun.", "fact": "2080-06-05T19:32:59Z → 2080-06-06T21:56:23Z" }, { "step": "kaala", "text": "Moonrise is at 21:29 on the 5th and 22:11 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 21854 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Thursday 6 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-06-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Thursday 6 June. Caturthī runs from 03:33 on Thu 6 Jun to 05:56 on Fri 7 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-06-06", "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/2080/ekadashi?on=2080-06-14", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29959, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-06-13T14:29:41+08:00", "utc": "2080-06-13T06:29:41Z", "ms": 3485485780637.021 }, "end": { "local": "2080-06-14T13:30:20+08:00", "utc": "2080-06-14T05:30:20Z", "ms": 3485568619512.3735 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-13T14:29:41+08:00", "utc": "2080-06-13T06:29:41Z", "ms": 3485485780637.021 }, "end": { "local": "2080-06-14T13:30:20+08:00", "utc": "2080-06-14T05:30:20Z", "ms": 3485568619512.3735 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-06-13", "window": { "start": { "local": "2080-06-13T05:10:54+08:00", "utc": "2080-06-12T21:10:54Z", "ms": 3485452254355.1074 }, "end": { "local": "2080-06-13T05:10:54+08:00", "utc": "2080-06-12T21:10:54Z", "ms": 3485452254355.1074 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-06-14", "window": { "start": { "local": "2080-06-14T05:11:00+08:00", "utc": "2080-06-13T21:11:00Z", "ms": 3485538660174.3813 }, "end": { "local": "2080-06-14T05:11:00+08:00", "utc": "2080-06-13T21:11:00Z", "ms": 3485538660174.3813 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 14:30 on Thu 13 Jun to 13:30 on Fri 14 Jun.", "fact": "2080-06-13T06:29:41Z → 2080-06-14T05:30:20Z" }, { "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 not on the 13th and is on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29959 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Fuzhou, 2080: Friday 14 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-06-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Yoginī Ekādaśī 2080 falls on Friday 14 June. Ekādaśī runs from 14:30 on Thu 13 Jun to 13:30 on Fri 14 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-06-14", "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/2080/pradosha-vrata?on=2080-06-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26020, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-06-15T11:42:48+08:00", "utc": "2080-06-15T03:42:48Z", "ms": 3485648567555.179 }, "end": { "local": "2080-06-16T09:12:59+08:00", "utc": "2080-06-16T01:12:59Z", "ms": 3485725978883.683 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-15T11:42:48+08:00", "utc": "2080-06-15T03:42:48Z", "ms": 3485648567555.179 }, "end": { "local": "2080-06-16T09:12:59+08:00", "utc": "2080-06-16T01:12:59Z", "ms": 3485725978883.683 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-06-15", "window": { "start": { "local": "2080-06-15T18:56:27+08:00", "utc": "2080-06-15T10:56:27Z", "ms": 3485674587073.4897 }, "end": { "local": "2080-06-15T20:18:25+08:00", "utc": "2080-06-15T12:18:25Z", "ms": 3485679505485.2324 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "2080-06-16", "window": { "start": { "local": "2080-06-16T18:56:45+08:00", "utc": "2080-06-16T10:56:45Z", "ms": 3485761004613.5864 }, "end": { "local": "2080-06-16T20:18:42+08:00", "utc": "2080-06-16T12:18:42Z", "ms": 3485765921902.966 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:43 on Sat 15 Jun to 09:13 on Sun 16 Jun.", "fact": "2080-06-15T03:42:48Z → 2080-06-16T01:12:59Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:56–20:18 on the 15th, 18:57–20:19 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 82 of 82 minutes on the 15th and 0 of 82 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26020 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Saturday 15 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-06-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Saturday 15 June. Trayodaśī runs from 11:43 on Sat 15 Jun to 09:13 on Sun 16 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-06-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/shivaratri?on=2080-06-16", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20474, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-06-16T09:12:59+08:00", "utc": "2080-06-16T01:12:59Z", "ms": 3485725978883.683 }, "end": { "local": "2080-06-17T06:09:18+08:00", "utc": "2080-06-16T22:09:18Z", "ms": 3485801358187.3228 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-16T09:12:59+08:00", "utc": "2080-06-16T01:12:59Z", "ms": 3485725978883.683 }, "end": { "local": "2080-06-17T06:09:18+08:00", "utc": "2080-06-16T22:09:18Z", "ms": 3485801358187.3228 } }, "kaala": "nishita", "days": [ { "local_date": "2080-06-15", "window": { "start": { "local": "2080-06-15T23:39:51+08:00", "utc": "2080-06-15T15:39:51Z", "ms": 3485691591117.5254 }, "end": { "local": "2080-06-16T00:27:51+08:00", "utc": "2080-06-15T16:27:51Z", "ms": 3485694471117.5254 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-06-16", "window": { "start": { "local": "2080-06-16T23:40:04+08:00", "utc": "2080-06-16T15:40:04Z", "ms": 3485778004448.7593 }, "end": { "local": "2080-06-17T00:28:04+08:00", "utc": "2080-06-16T16:28:04Z", "ms": 3485780884448.7593 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 09:13 on Sun 16 Jun to 06:09 on Mon 17 Jun.", "fact": "2080-06-16T01:12:59Z → 2080-06-16T22:09:18Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:40–00:28 on the 15th, 23:40–00:28 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20474 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Sunday 16 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-06-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Sunday 16 June. Caturdaśī runs from 09:13 on Sun 16 Jun to 06:09 on Mon 17 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-06-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24596, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2080-06-18T23:01:11+08:00", "utc": "2080-06-18T15:01:11Z", "ms": 3485948471000.655 }, "end": { "local": "2080-06-19T19:18:34+08:00", "utc": "2080-06-19T11:18:34Z", "ms": 3486021514303.4355 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-18T23:01:11+08:00", "utc": "2080-06-18T15:01:11Z", "ms": 3485948471000.655 }, "end": { "local": "2080-06-19T19:18:34+08:00", "utc": "2080-06-19T11:18:34Z", "ms": 3486021514303.4355 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-06-18", "window": { "start": { "local": "2080-06-18T11:40:26+08:00", "utc": "2080-06-18T03:40:26Z", "ms": 3485907625666.689 }, "end": { "local": "2080-06-18T12:28:26+08:00", "utc": "2080-06-18T04:28:26Z", "ms": 3485910505666.689 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-06-19", "window": { "start": { "local": "2080-06-19T11:40:39+08:00", "utc": "2080-06-19T03:40:39Z", "ms": 3485994038594.5234 }, "end": { "local": "2080-06-19T12:28:39+08:00", "utc": "2080-06-19T04:28:39Z", "ms": 3485996918594.5234 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 23:01 on Tue 18 Jun to 19:19 on Wed 19 Jun.", "fact": "2080-06-18T15:01:11Z → 2080-06-19T11:18:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 18th, 11:41–12:29 on the 19th.", "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 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 24596 s" }, { "step": "ruling", "text": "Rathayātrā, Fuzhou, 2080: Wednesday 19 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rathayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Rathayatra (paraviddha, special when combined with naksatra 'Pusya')" } ], "not_evaluated": "The row calls the day special with Puṣya nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-06-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Rathayātrā 2080 falls on Wednesday 19 June. Dvitīyā runs from 23:01 on Tue 18 Jun to 19:19 on Wed 19 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-21", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 3, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2080-06-21T12:29:02+08:00", "utc": "2080-06-21T04:29:02Z", "ms": 3486169741669.2134 }, "end": { "local": "2080-06-22T09:40:20+08:00", "utc": "2080-06-22T01:40:20Z", "ms": 3486246020159.1455 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-21T12:29:02+08:00", "utc": "2080-06-21T04:29:02Z", "ms": 3486169741669.2134 }, "end": { "local": "2080-06-22T09:40:20+08:00", "utc": "2080-06-22T01:40:20Z", "ms": 3486246020159.1455 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-06-21", "window": { "start": { "local": "2080-06-21T11:41:04+08:00", "utc": "2080-06-21T03:41:04Z", "ms": 3486166864378.0684 }, "end": { "local": "2080-06-21T12:29:04+08:00", "utc": "2080-06-21T04:29:04Z", "ms": 3486169744378.0684 } }, "covered_min": 0, "window_min": 48, "qualifies": true }, { "local_date": "2080-06-22", "window": { "start": { "local": "2080-06-22T11:41:17+08:00", "utc": "2080-06-22T03:41:17Z", "ms": 3486253277176.996 }, "end": { "local": "2080-06-22T12:29:17+08:00", "utc": "2080-06-22T04:29:17Z", "ms": 3486256157176.996 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:29 on Fri 21 Jun to 09:40 on Sat 22 Jun.", "fact": "2080-06-21T04:29:02Z → 2080-06-22T01:40:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 21st, 11:41–12:29 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3 s < 300 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Fuzhou, 2080: Friday 21 June.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "skanda-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Skanda pancami (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-06-21", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Skanda Pañcamī 2080 falls on Friday 21 June. Pañcamī runs from 12:29 on Fri 21 Jun to 09:40 on Sat 22 Jun and covers 0 of 48 minutes of madhyāhna that midday. It is 0 min 03 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vinayaka-chaturthi?on=2080-06-21", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-21", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 3, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-06-20T15:44:35+08:00", "utc": "2080-06-20T07:44:35Z", "ms": 3486095075123.752 }, "end": { "local": "2080-06-21T12:29:02+08:00", "utc": "2080-06-21T04:29:02Z", "ms": 3486169741669.2134 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-20T15:44:35+08:00", "utc": "2080-06-20T07:44:35Z", "ms": 3486095075123.752 }, "end": { "local": "2080-06-21T12:29:02+08:00", "utc": "2080-06-21T04:29:02Z", "ms": 3486169741669.2134 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-06-20", "window": { "start": { "local": "2080-06-20T11:40:52+08:00", "utc": "2080-06-20T03:40:52Z", "ms": 3486080451508.0166 }, "end": { "local": "2080-06-20T12:28:52+08:00", "utc": "2080-06-20T04:28:52Z", "ms": 3486083331508.0166 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-06-21", "window": { "start": { "local": "2080-06-21T11:41:04+08:00", "utc": "2080-06-21T03:41:04Z", "ms": 3486166864378.0684 }, "end": { "local": "2080-06-21T12:29:04+08:00", "utc": "2080-06-21T04:29:04Z", "ms": 3486169744378.0684 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:45 on Thu 20 Jun to 12:29 on Fri 21 Jun.", "fact": "2080-06-20T07:44:35Z → 2080-06-21T04:29:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 20th, 11:41–12:29 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3 s < 300 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2080: Friday 21 June.", "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": "2080-06-21", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2080 falls on Friday 21 June. Caturthī runs from 15:45 on Thu 20 Jun to 12:29 on Fri 21 Jun and covers all of madhyāhna that midday. It is 0 min 03 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-06-21", "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/2080/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15386, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2080-06-23T07:25:04+08:00", "utc": "2080-06-22T23:25:04Z", "ms": 3486324303757.6865 }, "end": { "local": "2080-06-24T05:47:25+08:00", "utc": "2080-06-23T21:47:25Z", "ms": 3486404845200.924 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-23T07:25:04+08:00", "utc": "2080-06-22T23:25:04Z", "ms": 3486324303757.6865 }, "end": { "local": "2080-06-24T05:47:25+08:00", "utc": "2080-06-23T21:47:25Z", "ms": 3486404845200.924 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-06-23", "window": { "start": { "local": "2080-06-23T11:41:30+08:00", "utc": "2080-06-23T03:41:30Z", "ms": 3486339689878.798 }, "end": { "local": "2080-06-23T12:29:30+08:00", "utc": "2080-06-23T04:29:30Z", "ms": 3486342569878.798 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-06-24", "window": { "start": { "local": "2080-06-24T11:41:42+08:00", "utc": "2080-06-24T03:41:42Z", "ms": 3486426102459.119 }, "end": { "local": "2080-06-24T12:29:42+08:00", "utc": "2080-06-24T04:29:42Z", "ms": 3486428982459.119 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 07:25 on Sun 23 Jun to 05:47 on Mon 24 Jun.", "fact": "2080-06-22T23:25:04Z → 2080-06-23T21:47:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 23rd, 11:42–12:30 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 15386 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Fuzhou, 2080: Sunday 23 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vivasvat-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Vivasvat saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-06-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-23", "confidence": "determinate" } ], "quote": "In Fuzhou, Vivasvat Saptamī 2080 falls on Sunday 23 June. Saptamī runs from 07:25 on Sun 23 Jun to 05:47 on Mon 24 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-06-28", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 934, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-06-27T04:43:54+08:00", "utc": "2080-06-26T20:43:54Z", "ms": 3486660234127.1333 }, "end": { "local": "2080-06-28T05:29:42+08:00", "utc": "2080-06-27T21:29:42Z", "ms": 3486749382063.163 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-27T04:43:54+08:00", "utc": "2080-06-26T20:43:54Z", "ms": 3486660234127.1333 }, "end": { "local": "2080-06-28T05:29:42+08:00", "utc": "2080-06-27T21:29:42Z", "ms": 3486749382063.163 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-06-27", "window": { "start": { "local": "2080-06-27T05:13:49+08:00", "utc": "2080-06-26T21:13:49Z", "ms": 3486662028667.684 }, "end": { "local": "2080-06-27T05:13:49+08:00", "utc": "2080-06-26T21:13:49Z", "ms": 3486662028667.684 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-06-28", "window": { "start": { "local": "2080-06-28T05:14:08+08:00", "utc": "2080-06-27T21:14:08Z", "ms": 3486748447815.7373 }, "end": { "local": "2080-06-28T05:14:08+08:00", "utc": "2080-06-27T21:14:08Z", "ms": 3486748447815.7373 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:44 on Thu 27 Jun to 05:30 on Fri 28 Jun.", "fact": "2080-06-26T20:43:54Z → 2080-06-27T21:29:42Z" }, { "step": "kaala", "text": "Sunrise is at 05:14 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 on the 27th and is on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Both sunrises qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 934 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Fuzhou, 2080: Friday 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": "2080-06-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Hariśayanī Ekādaśī 2080 falls on Friday 28 June. Ekādaśī runs from 04:44 on Thu 27 Jun to 05:30 on Fri 28 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-06-28", "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/2080/pradosha-vrata?on=2080-06-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-06-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37225, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-06-29T06:41:24+08:00", "utc": "2080-06-28T22:41:24Z", "ms": 3486840084253.518 }, "end": { "local": "2080-06-30T08:14:29+08:00", "utc": "2080-06-30T00:14:29Z", "ms": 3486932069128.5615 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-06-29T06:41:24+08:00", "utc": "2080-06-28T22:41:24Z", "ms": 3486840084253.518 }, "end": { "local": "2080-06-30T08:14:29+08:00", "utc": "2080-06-30T00:14:29Z", "ms": 3486932069128.5615 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-06-28", "window": { "start": { "local": "2080-06-28T18:58:54+08:00", "utc": "2080-06-28T10:58:54Z", "ms": 3486797934431.5303 }, "end": { "local": "2080-06-28T20:20:59+08:00", "utc": "2080-06-28T12:20:59Z", "ms": 3486802858869.233 } }, "covered_min": 0, "window_min": 82, "qualifies": false }, { "local_date": "2080-06-29", "window": { "start": { "local": "2080-06-29T18:58:58+08:00", "utc": "2080-06-29T10:58:58Z", "ms": 3486884337832.701 }, "end": { "local": "2080-06-29T20:21:05+08:00", "utc": "2080-06-29T12:21:05Z", "ms": 3486889264566.679 } }, "covered_min": 82, "window_min": 82, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:41 on Sat 29 Jun to 08:14 on Sun 30 Jun.", "fact": "2080-06-28T22:41:24Z → 2080-06-30T00:14:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:59–20:21 on the 28th, 18:59–20:21 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 82 minutes on the 28th and 82 of 82 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 37225 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Saturday 29 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": "2080-06-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-06-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Saturday 29 June. Trayodaśī runs from 06:41 on Sat 29 Jun to 08:14 on Sun 30 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-06-29", "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/2080/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14651, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-07-01T10:05:08+08:00", "utc": "2080-07-01T02:05:08Z", "ms": 3487025107829.712 }, "end": { "local": "2080-07-02T12:10:08+08:00", "utc": "2080-07-02T04:10:08Z", "ms": 3487119008361.1787 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-07-01T10:05:08+08:00", "utc": "2080-07-01T02:05:08Z", "ms": 3487025107829.712 }, "end": { "local": "2080-07-02T12:10:08+08:00", "utc": "2080-07-02T04:10:08Z", "ms": 3487119008361.1787 } }, "kaala": "sayahna", "days": [ { "local_date": "2080-07-01", "window": { "start": { "local": "2080-07-01T16:14:15+08:00", "utc": "2080-07-01T08:14:15Z", "ms": 3487047254717.4355 }, "end": { "local": "2080-07-01T18:59:01+08:00", "utc": "2080-07-01T10:59:01Z", "ms": 3487057140981.878 } }, "covered_min": 165, "window_min": 165, "qualifies": true }, { "local_date": "2080-07-02", "window": { "start": { "local": "2080-07-02T16:14:19+08:00", "utc": "2080-07-02T08:14:19Z", "ms": 3487133658898.8687 }, "end": { "local": "2080-07-02T18:59:01+08:00", "utc": "2080-07-02T10:59:01Z", "ms": 3487143540709.8438 } }, "covered_min": 0, "window_min": 165, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:05 on Mon 1 Jul to 12:10 on Tue 2 Jul.", "fact": "2080-07-01T02:05:08Z → 2080-07-02T04:10:08Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:14–18:59 on the 1st, 16:14–18:59 on the 2nd.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 165 of 165 minutes on the 1st and 0 of 165 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14651 s" }, { "step": "ruling", "text": "Kokilā Vrata, Fuzhou, 2080: Monday 1 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": "2080-07-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Kokilā Vrata 2080 falls on Monday 1 July. Pūrṇimā runs from 10:05 on Mon 1 Jul to 12:10 on Tue 2 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24532, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-07-01T10:05:08+08:00", "utc": "2080-07-01T02:05:08Z", "ms": 3487025107829.712 }, "end": { "local": "2080-07-02T12:10:08+08:00", "utc": "2080-07-02T04:10:08Z", "ms": 3487119008361.1787 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-07-01T10:05:08+08:00", "utc": "2080-07-01T02:05:08Z", "ms": 3487025107829.712 }, "end": { "local": "2080-07-02T12:10:08+08:00", "utc": "2080-07-02T04:10:08Z", "ms": 3487119008361.1787 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-07-01", "window": { "start": { "local": "2080-07-01T18:59:01+08:00", "utc": "2080-07-01T10:59:01Z", "ms": 3487057140981.878 }, "end": { "local": "2080-07-01T20:21:13+08:00", "utc": "2080-07-01T12:21:13Z", "ms": 3487062073071.623 } }, "covered_min": 82, "window_min": 82, "qualifies": true }, { "local_date": "2080-07-02", "window": { "start": { "local": "2080-07-02T18:59:01+08:00", "utc": "2080-07-02T10:59:01Z", "ms": 3487143540709.8438 }, "end": { "local": "2080-07-02T20:21:16+08:00", "utc": "2080-07-02T12:21:16Z", "ms": 3487148475854.897 } }, "covered_min": 0, "window_min": 82, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:05 on Mon 1 Jul to 12:10 on Tue 2 Jul.", "fact": "2080-07-01T02:05:08Z → 2080-07-02T04:10:08Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:59–20:21 on the 1st, 18:59–20:21 on the 2nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 82 of 82 minutes on the 1st and 0 of 82 on the 2nd.", "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 24532 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Fuzhou, 2080: Monday 1 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": "2080-07-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Śiva Śayanotsava 2080 falls on Monday 1 July. Pūrṇimā runs from 10:05 on Mon 1 Jul to 12:10 on Tue 2 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7512, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-07-01T10:05:08+08:00", "utc": "2080-07-01T02:05:08Z", "ms": 3487025107829.712 }, "end": { "local": "2080-07-02T12:10:08+08:00", "utc": "2080-07-02T04:10:08Z", "ms": 3487119008361.1787 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-07-01T10:05:08+08:00", "utc": "2080-07-01T02:05:08Z", "ms": 3487025107829.712 }, "end": { "local": "2080-07-02T12:10:08+08:00", "utc": "2080-07-02T04:10:08Z", "ms": 3487119008361.1787 } }, "kaala": "udaya-3", "days": [ { "local_date": "2080-07-01", "window": { "start": { "local": "2080-07-01T05:15:10+08:00", "utc": "2080-06-30T21:15:10Z", "ms": 3487007709659.6655 }, "end": { "local": "2080-07-01T07:59:56+08:00", "utc": "2080-06-30T23:59:56Z", "ms": 3487017595924.108 } }, "covered_min": 0, "window_min": 165, "qualifies": false }, { "local_date": "2080-07-02", "window": { "start": { "local": "2080-07-02T05:15:32+08:00", "utc": "2080-07-01T21:15:32Z", "ms": 3487094131654.9673 }, "end": { "local": "2080-07-02T08:00:13+08:00", "utc": "2080-07-02T00:00:13Z", "ms": 3487104013465.9424 } }, "covered_min": 165, "window_min": 165, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:05 on Mon 1 Jul to 12:10 on Tue 2 Jul.", "fact": "2080-07-01T02:05:08Z → 2080-07-02T04:10:08Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:15–08:00 on the 1st, 05:16–08:00 on the 2nd.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must hold through the first three muhūrtas after sunrise. It covers 0 of 165 minutes on the 1st and 165 of 165 on the 2nd.", "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 7512 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Fuzhou, 2080: Tuesday 2 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vyasa-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "udaya-3", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Vyāsa Pūjā 2080 falls on Tuesday 2 July. Pūrṇimā runs from 10:05 on Mon 1 Jul to 12:10 on Tue 2 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1268, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-07-01T10:05:08+08:00", "utc": "2080-07-01T02:05:08Z", "ms": 3487025107829.712 }, "end": { "local": "2080-07-02T12:10:08+08:00", "utc": "2080-07-02T04:10:08Z", "ms": 3487119008361.1787 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "2080-07-01T10:05:08+08:00", "utc": "2080-07-01T02:05:08Z", "ms": 3487025107829.712 }, "end": { "local": "2080-07-02T12:10:08+08:00", "utc": "2080-07-02T04:10:08Z", "ms": 3487119008361.1787 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-07-01", "window": { "start": { "local": "2080-07-01T11:43:05+08:00", "utc": "2080-07-01T03:43:05Z", "ms": 3487030985320.7715 }, "end": { "local": "2080-07-01T12:31:05+08:00", "utc": "2080-07-01T04:31:05Z", "ms": 3487033865320.7715 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-07-02", "window": { "start": { "local": "2080-07-02T11:43:16+08:00", "utc": "2080-07-02T03:43:16Z", "ms": 3487117396182.4053 }, "end": { "local": "2080-07-02T12:31:16+08:00", "utc": "2080-07-02T04:31:16Z", "ms": 3487120276182.4053 } }, "covered_min": 27, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 10:05 on Mon 1 Jul to 12:10 on Tue 2 Jul.", "fact": "2080-07-01T02:05:08Z → 2080-07-02T04:10:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 1st, 11:43–12:31 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 1st and 27 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 1268 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Fuzhou, 2080: Tuesday 2 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "guru-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Guru purnima (paraviddha), Vyasa puja (paraviddha, 3 muhurtas after sunrise), Kokila vrata (sayahna vyapini). Siva sayanotsava (pradosavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-07-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Guru Pūrṇimā 2080 falls on Tuesday 2 July. Pūrṇimā runs from 10:05 on Mon 1 Jul to 12:10 on Tue 2 Jul and covers 27 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14299, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2080-07-03T14:26:24+08:00", "utc": "2080-07-03T06:26:24Z", "ms": 3487213583874.587 }, "end": { "local": "2080-07-04T16:50:05+08:00", "utc": "2080-07-04T08:50:05Z", "ms": 3487308605215.8066 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-07-03T14:26:24+08:00", "utc": "2080-07-03T06:26:24Z", "ms": 3487213583874.587 }, "end": { "local": "2080-07-04T16:50:05+08:00", "utc": "2080-07-04T08:50:05Z", "ms": 3487308605215.8066 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-07-03", "window": { "start": { "local": "2080-07-03T20:09:23+08:00", "utc": "2080-07-03T12:09:23Z", "ms": 3487234163476.999 }, "end": { "local": "2080-07-03T20:09:23+08:00", "utc": "2080-07-03T12:09:23Z", "ms": 3487234163476.999 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-07-04", "window": { "start": { "local": "2080-07-04T20:48:24+08:00", "utc": "2080-07-04T12:48:24Z", "ms": 3487322904121.959 }, "end": { "local": "2080-07-04T20:48:24+08:00", "utc": "2080-07-04T12:48:24Z", "ms": 3487322904121.959 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 14:26 on Wed 3 Jul to 16:50 on Thu 4 Jul.", "fact": "2080-07-03T06:26:24Z → 2080-07-04T08:50:05Z" }, { "step": "kaala", "text": "Moonrise is at 20:09 on the 3rd and 20:48 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is on the 3rd and is not on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14299 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Fuzhou, 2080: Wednesday 3 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ashunya-shayana-vrata-ashadha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 2 Asunya sayana vrata (candrodaya vyapini; purvahna vyapini and purvaviddha in Bengal)." } ], "not_evaluated": "In Bengal the row reads pūrvāhṇa and pūrvaviddha; that reading is not applied.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-07-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Aśūnya Śayana Vrata (Āṣāḍha) 2080 falls on Wednesday 3 July. Dvitīyā runs from 14:26 on Wed 3 Jul to 16:50 on Thu 4 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-07-05", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1080, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-07-05T19:15:53+08:00", "utc": "2080-07-05T11:15:53Z", "ms": 3487403752869.15 }, "end": { "local": "2080-07-06T21:36:26+08:00", "utc": "2080-07-06T13:36:26Z", "ms": 3487498586261.8745 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-07-05T19:15:53+08:00", "utc": "2080-07-05T11:15:53Z", "ms": 3487403752869.15 }, "end": { "local": "2080-07-06T21:36:26+08:00", "utc": "2080-07-06T13:36:26Z", "ms": 3487498586261.8745 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-07-05", "window": { "start": { "local": "2080-07-05T21:23:03+08:00", "utc": "2080-07-05T13:23:03Z", "ms": 3487411382946.27 }, "end": { "local": "2080-07-05T21:23:03+08:00", "utc": "2080-07-05T13:23:03Z", "ms": 3487411382946.27 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-07-06", "window": { "start": { "local": "2080-07-06T21:54:26+08:00", "utc": "2080-07-06T13:54:26Z", "ms": 3487499665908.668 }, "end": { "local": "2080-07-06T21:54:26+08:00", "utc": "2080-07-06T13:54:26Z", "ms": 3487499665908.668 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:16 on Fri 5 Jul to 21:36 on Sat 6 Jul.", "fact": "2080-07-05T11:15:53Z → 2080-07-06T13:36:26Z" }, { "step": "kaala", "text": "Moonrise is at 21:23 on the 5th and 21:54 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 5th and is not on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1080 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Friday 5 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-07-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Friday 5 July. Caturthī runs from 19:16 on Fri 5 Jul to 21:36 on Sat 6 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-07-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/ekadashi?on=2080-07-13", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15150, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-07-13T01:07:40+08:00", "utc": "2080-07-12T17:07:40Z", "ms": 3488029660255.1206 }, "end": { "local": "2080-07-13T23:03:20+08:00", "utc": "2080-07-13T15:03:20Z", "ms": 3488108599602.6587 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-07-13T01:07:40+08:00", "utc": "2080-07-12T17:07:40Z", "ms": 3488029660255.1206 }, "end": { "local": "2080-07-13T23:03:20+08:00", "utc": "2080-07-13T15:03:20Z", "ms": 3488108599602.6587 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-07-13", "window": { "start": { "local": "2080-07-13T05:20:11+08:00", "utc": "2080-07-12T21:20:11Z", "ms": 3488044810619.9844 }, "end": { "local": "2080-07-13T05:20:11+08:00", "utc": "2080-07-12T21:20:11Z", "ms": 3488044810619.9844 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-07-14", "window": { "start": { "local": "2080-07-14T05:20:39+08:00", "utc": "2080-07-13T21:20:39Z", "ms": 3488131238651.799 }, "end": { "local": "2080-07-14T05:20:39+08:00", "utc": "2080-07-13T21:20:39Z", "ms": 3488131238651.799 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:08 on Sat 13 Jul to 23:03 on Sat 13 Jul.", "fact": "2080-07-12T17:07:40Z → 2080-07-13T15:03:20Z" }, { "step": "kaala", "text": "Sunrise is at 05:20 on the 13th and 05:21 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 15150 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Fuzhou, 2080: Saturday 13 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-07-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Kāmikā Ekādaśī 2080 falls on Saturday 13 July. Ekādaśī runs from 01:08 on Sat 13 Jul to 23:03 on Sat 13 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-07-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/pradosha-vrata?on=2080-07-14", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-14", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 183, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-07-14T20:17:26+08:00", "utc": "2080-07-14T12:17:26Z", "ms": 3488185046158.662 }, "end": { "local": "2080-07-15T16:58:25+08:00", "utc": "2080-07-15T08:58:25Z", "ms": 3488259505434.097 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-07-14T20:17:26+08:00", "utc": "2080-07-14T12:17:26Z", "ms": 3488185046158.662 }, "end": { "local": "2080-07-15T16:58:25+08:00", "utc": "2080-07-15T08:58:25Z", "ms": 3488259505434.097 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-07-14", "window": { "start": { "local": "2080-07-14T18:57:19+08:00", "utc": "2080-07-14T10:57:19Z", "ms": 3488180238798.1987 }, "end": { "local": "2080-07-14T20:20:29+08:00", "utc": "2080-07-14T12:20:29Z", "ms": 3488185229225.7744 } }, "covered_min": 3, "window_min": 83, "qualifies": true }, { "local_date": "2080-07-15", "window": { "start": { "local": "2080-07-15T18:57:02+08:00", "utc": "2080-07-15T10:57:02Z", "ms": 3488266621966.0015 }, "end": { "local": "2080-07-15T20:20:18+08:00", "utc": "2080-07-15T12:20:18Z", "ms": 3488271618456.876 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:17 on Sun 14 Jul to 16:58 on Mon 15 Jul.", "fact": "2080-07-14T12:17:26Z → 2080-07-15T08:58:25Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:57–20:20 on the 14th, 18:57–20:20 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 3 of 83 minutes on the 14th and 0 of 83 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 183 s < 300 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Sunday 14 July.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-07-14", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Sunday 14 July. Trayodaśī runs from 20:17 on Sun 14 Jul to 16:58 on Mon 15 Jul and covers 3 of 83 minutes of pradoṣa that evening. It is 3 min 03 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-07-14", "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/2080/shivaratri?on=2080-07-15", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24413, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-07-15T16:58:25+08:00", "utc": "2080-07-15T08:58:25Z", "ms": 3488259505434.097 }, "end": { "local": "2080-07-16T13:16:22+08:00", "utc": "2080-07-16T05:16:22Z", "ms": 3488332581723.25 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-07-15T16:58:25+08:00", "utc": "2080-07-15T08:58:25Z", "ms": 3488259505434.097 }, "end": { "local": "2080-07-16T13:16:22+08:00", "utc": "2080-07-16T05:16:22Z", "ms": 3488332581723.25 } }, "kaala": "nishita", "days": [ { "local_date": "2080-07-15", "window": { "start": { "local": "2080-07-15T23:45:19+08:00", "utc": "2080-07-15T15:45:19Z", "ms": 3488283918806.7812 }, "end": { "local": "2080-07-16T00:33:19+08:00", "utc": "2080-07-15T16:33:19Z", "ms": 3488286798806.7812 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-07-16", "window": { "start": { "local": "2080-07-16T23:45:24+08:00", "utc": "2080-07-16T15:45:24Z", "ms": 3488370324193.2686 }, "end": { "local": "2080-07-17T00:33:24+08:00", "utc": "2080-07-16T16:33:24Z", "ms": 3488373204193.2686 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:58 on Mon 15 Jul to 13:16 on Tue 16 Jul.", "fact": "2080-07-15T08:58:25Z → 2080-07-16T05:16:22Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:45–00:33 on the 15th, 23:45–00:33 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24413 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Monday 15 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": "2080-07-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Monday 15 July. Caturdaśī runs from 16:58 on Mon 15 Jul to 13:16 on Tue 16 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-07-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-07-20", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24734, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-07-19T22:19:12+08:00", "utc": "2080-07-19T14:19:12Z", "ms": 3488624351759.6367 }, "end": { "local": "2080-07-20T19:25:39+08:00", "utc": "2080-07-20T11:25:39Z", "ms": 3488700339198.226 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-07-19T22:19:12+08:00", "utc": "2080-07-19T14:19:12Z", "ms": 3488624351759.6367 }, "end": { "local": "2080-07-20T19:25:39+08:00", "utc": "2080-07-20T11:25:39Z", "ms": 3488700339198.226 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-07-19", "window": { "start": { "local": "2080-07-19T11:45:22+08:00", "utc": "2080-07-19T03:45:22Z", "ms": 3488586322332.201 }, "end": { "local": "2080-07-19T12:33:22+08:00", "utc": "2080-07-19T04:33:22Z", "ms": 3488589202332.201 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-07-20", "window": { "start": { "local": "2080-07-20T11:45:25+08:00", "utc": "2080-07-20T03:45:25Z", "ms": 3488672725412.792 }, "end": { "local": "2080-07-20T12:33:25+08:00", "utc": "2080-07-20T04:33:25Z", "ms": 3488675605412.792 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 22:19 on Fri 19 Jul to 19:26 on Sat 20 Jul.", "fact": "2080-07-19T14:19:12Z → 2080-07-20T11:25:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 19th, 11:45–12:33 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24734 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2080: Saturday 20 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": "2080-07-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2080 falls on Saturday 20 July. Caturthī runs from 22:19 on Fri 19 Jul to 19:26 on Sat 20 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-07-20", "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/2080/ekadashi?on=2080-07-27", "festival": "ekadashi", "name": "Śukla Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40124, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-07-26T16:35:16+08:00", "utc": "2080-07-26T08:35:16Z", "ms": 3489208515575.4546 }, "end": { "local": "2080-07-27T18:15:14+08:00", "utc": "2080-07-27T10:15:14Z", "ms": 3489300914181.213 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-07-26T16:35:16+08:00", "utc": "2080-07-26T08:35:16Z", "ms": 3489208515575.4546 }, "end": { "local": "2080-07-27T18:15:14+08:00", "utc": "2080-07-27T10:15:14Z", "ms": 3489300914181.213 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-07-26", "window": { "start": { "local": "2080-07-26T05:26:31+08:00", "utc": "2080-07-25T21:26:31Z", "ms": 3489168391203.0425 }, "end": { "local": "2080-07-26T05:26:31+08:00", "utc": "2080-07-25T21:26:31Z", "ms": 3489168391203.0425 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-07-27", "window": { "start": { "local": "2080-07-27T05:27:01+08:00", "utc": "2080-07-26T21:27:01Z", "ms": 3489254821104.39 }, "end": { "local": "2080-07-27T05:27:01+08:00", "utc": "2080-07-26T21:27:01Z", "ms": 3489254821104.39 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:35 on Fri 26 Jul to 18:15 on Sat 27 Jul.", "fact": "2080-07-26T08:35:16Z → 2080-07-27T10:15:14Z" }, { "step": "kaala", "text": "Sunrise is at 05:27 on the 26th and 05:27 on the 27th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 26th and is on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 40124 s" }, { "step": "ruling", "text": "Śukla Ekādaśī, Fuzhou, 2080: Saturday 27 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": "2080-07-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Ekādaśī 2080 falls on Saturday 27 July. Ekādaśī runs from 16:35 on Fri 26 Jul to 18:15 on Sat 27 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-07-27", "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/2080/pradosha-vrata?on=2080-07-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-07-29", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 49, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-07-28T20:15:30+08:00", "utc": "2080-07-28T12:15:30Z", "ms": 3489394529722.171 }, "end": { "local": "2080-07-29T22:29:16+08:00", "utc": "2080-07-29T14:29:16Z", "ms": 3489488955645.1494 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-07-28T20:15:30+08:00", "utc": "2080-07-28T12:15:30Z", "ms": 3489394529722.171 }, "end": { "local": "2080-07-29T22:29:16+08:00", "utc": "2080-07-29T14:29:16Z", "ms": 3489488955645.1494 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-07-28", "window": { "start": { "local": "2080-07-28T18:51:26+08:00", "utc": "2080-07-28T10:51:26Z", "ms": 3489389486165.136 }, "end": { "local": "2080-07-28T20:16:19+08:00", "utc": "2080-07-28T12:16:19Z", "ms": 3489394578788.179 } }, "covered_min": 1, "window_min": 85, "qualifies": true }, { "local_date": "2080-07-29", "window": { "start": { "local": "2080-07-29T18:50:52+08:00", "utc": "2080-07-29T10:50:52Z", "ms": 3489475851616.13 }, "end": { "local": "2080-07-29T20:15:53+08:00", "utc": "2080-07-29T12:15:53Z", "ms": 3489480952819.3906 } }, "covered_min": 85, "window_min": 85, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 20:15 on Sun 28 Jul to 22:29 on Mon 29 Jul.", "fact": "2080-07-28T12:15:30Z → 2080-07-29T14:29:16Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:51–20:16 on the 28th, 18:51–20:16 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 1 of 85 minutes on the 28th and 85 of 85 on the 29th.", "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 49 s < 300 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Monday 29 July.", "fact": "confidence: boundary (margin, tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-07-29", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-07-29", "confidence": "boundary" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Monday 29 July. Trayodaśī runs from 20:15 on Sun 28 Jul to 22:29 on Mon 29 Jul and covers all of pradoṣa that evening. It also reaches the previous evening for 1 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 0 min 49 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-07-29", "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/2080/sankashta-chaturthi?on=2080-08-04", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35121, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-08-04T09:55:03+08:00", "utc": "2080-08-04T01:55:03Z", "ms": 3489962102611.0576 }, "end": { "local": "2080-08-05T11:38:03+08:00", "utc": "2080-08-05T03:38:03Z", "ms": 3490054683135.7246 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-04T09:55:03+08:00", "utc": "2080-08-04T01:55:03Z", "ms": 3489962102611.0576 }, "end": { "local": "2080-08-05T11:38:03+08:00", "utc": "2080-08-05T03:38:03Z", "ms": 3490054683135.7246 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-08-04", "window": { "start": { "local": "2080-08-04T20:55:03+08:00", "utc": "2080-08-04T12:55:03Z", "ms": 3490001703161.271 }, "end": { "local": "2080-08-04T20:55:03+08:00", "utc": "2080-08-04T12:55:03Z", "ms": 3490001703161.271 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-08-05", "window": { "start": { "local": "2080-08-05T21:23:24+08:00", "utc": "2080-08-05T13:23:24Z", "ms": 3490089803909.9062 }, "end": { "local": "2080-08-05T21:23:24+08:00", "utc": "2080-08-05T13:23:24Z", "ms": 3490089803909.9062 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:55 on Sun 4 Aug to 11:38 on Mon 5 Aug.", "fact": "2080-08-04T01:55:03Z → 2080-08-05T03:38:03Z" }, { "step": "kaala", "text": "Moonrise is at 20:55 on the 4th and 21:23 on the 5th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 35121 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Sunday 4 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-08-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Sunday 4 August. Caturthī runs from 09:55 on Sun 4 Aug to 11:38 on Mon 5 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-08-04", "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/2080/ekadashi?on=2080-08-12", "festival": "ekadashi", "name": "Kṛṣṇa Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3667, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-08-11T09:21:09+08:00", "utc": "2080-08-11T01:21:09Z", "ms": 3490564869382.134 }, "end": { "local": "2080-08-12T06:35:56+08:00", "utc": "2080-08-11T22:35:56Z", "ms": 3490641355867.6147 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-11T09:21:09+08:00", "utc": "2080-08-11T01:21:09Z", "ms": 3490564869382.134 }, "end": { "local": "2080-08-12T06:35:56+08:00", "utc": "2080-08-11T22:35:56Z", "ms": 3490641355867.6147 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-08-11", "window": { "start": { "local": "2080-08-11T05:34:21+08:00", "utc": "2080-08-10T21:34:21Z", "ms": 3490551260824.459 }, "end": { "local": "2080-08-11T05:34:21+08:00", "utc": "2080-08-10T21:34:21Z", "ms": 3490551260824.459 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-08-12", "window": { "start": { "local": "2080-08-12T05:34:49+08:00", "utc": "2080-08-11T21:34:49Z", "ms": 3490637689150.6333 }, "end": { "local": "2080-08-12T05:34:49+08:00", "utc": "2080-08-11T21:34:49Z", "ms": 3490637689150.6333 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:21 on Sun 11 Aug to 06:36 on Mon 12 Aug.", "fact": "2080-08-11T01:21:09Z → 2080-08-11T22:35:56Z" }, { "step": "kaala", "text": "Sunrise is at 05:34 on the 11th and 05:35 on the 12th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 11th and is on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3667 s" }, { "step": "ruling", "text": "Kṛṣṇa Ekādaśī, Fuzhou, 2080: Monday 12 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Ekādaśī 2080 falls on Monday 12 August. Ekādaśī runs from 09:21 on Sun 11 Aug to 06:36 on Mon 12 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-08-12", "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/2080/pradosha-vrata?on=2080-08-13", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13114, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-08-13T03:21:14+08:00", "utc": "2080-08-12T19:21:14Z", "ms": 3490716073627.1807 }, "end": { "local": "2080-08-13T23:46:02+08:00", "utc": "2080-08-13T15:46:02Z", "ms": 3490789562420.1226 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-13T03:21:14+08:00", "utc": "2080-08-12T19:21:14Z", "ms": 3490716073627.1807 }, "end": { "local": "2080-08-13T23:46:02+08:00", "utc": "2080-08-13T15:46:02Z", "ms": 3490789562420.1226 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-08-12", "window": { "start": { "local": "2080-08-12T18:40:53+08:00", "utc": "2080-08-12T10:40:53Z", "ms": 3490684853112.8013 }, "end": { "local": "2080-08-12T20:08:08+08:00", "utc": "2080-08-12T12:08:08Z", "ms": 3490690088339.267 } }, "covered_min": 0, "window_min": 87, "qualifies": false }, { "local_date": "2080-08-13", "window": { "start": { "local": "2080-08-13T18:40:03+08:00", "utc": "2080-08-13T10:40:03Z", "ms": 3490771202953.2324 }, "end": { "local": "2080-08-13T20:07:29+08:00", "utc": "2080-08-13T12:07:29Z", "ms": 3490776448599.1367 } }, "covered_min": 87, "window_min": 87, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:21 on Tue 13 Aug to 23:46 on Tue 13 Aug.", "fact": "2080-08-12T19:21:14Z → 2080-08-13T15:46:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:41–20:08 on the 12th, 18:40–20:07 on the 13th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 87 minutes on the 12th and 87 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 13114 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Tuesday 13 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": "2080-08-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Tuesday 13 August. Trayodaśī runs from 03:21 on Tue 13 Aug to 23:46 on Tue 13 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-08-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/shivaratri?on=2080-08-13", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-13", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 128, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-08-13T23:46:02+08:00", "utc": "2080-08-13T15:46:02Z", "ms": 3490789562420.1226 }, "end": { "local": "2080-08-14T20:00:23+08:00", "utc": "2080-08-14T12:00:23Z", "ms": 3490862422506.635 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": true, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-13T23:46:02+08:00", "utc": "2080-08-13T15:46:02Z", "ms": 3490789562420.1226 }, "end": { "local": "2080-08-14T20:00:23+08:00", "utc": "2080-08-14T12:00:23Z", "ms": 3490862422506.635 } }, "kaala": "nishita", "days": [ { "local_date": "2080-08-13", "window": { "start": { "local": "2080-08-13T23:43:54+08:00", "utc": "2080-08-13T15:43:54Z", "ms": 3490789434125.374 }, "end": { "local": "2080-08-14T00:31:54+08:00", "utc": "2080-08-13T16:31:54Z", "ms": 3490792314125.374 } }, "covered_min": 46, "window_min": 48, "qualifies": true }, { "local_date": "2080-08-14", "window": { "start": { "local": "2080-08-14T23:43:43+08:00", "utc": "2080-08-14T15:43:43Z", "ms": 3490875822505.149 }, "end": { "local": "2080-08-15T00:31:43+08:00", "utc": "2080-08-14T16:31:43Z", "ms": 3490878702505.149 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:46 on Tue 13 Aug to 20:00 on Wed 14 Aug.", "fact": "2080-08-13T15:46:02Z → 2080-08-14T12:00:23Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:44–00:32 on the 13th, 23:44–00:32 on the 14th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 46 of 48 minutes on the 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 128 s < 300 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Tuesday 13 August.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-08-13", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-13", "confidence": "boundary" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Tuesday 13 August. Caturdaśī runs from 23:46 on Tue 13 Aug to 20:00 on Wed 14 Aug and covers 46 of 48 minutes of niśītha that night. It is 2 min 08 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-08-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8254, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2080-08-17T09:25:16+08:00", "utc": "2080-08-17T01:25:16Z", "ms": 3491083516457.5166 }, "end": { "local": "2080-08-18T06:40:55+08:00", "utc": "2080-08-17T22:40:55Z", "ms": 3491160054520.1133 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-17T09:25:16+08:00", "utc": "2080-08-17T01:25:16Z", "ms": 3491083516457.5166 }, "end": { "local": "2080-08-18T06:40:55+08:00", "utc": "2080-08-17T22:40:55Z", "ms": 3491160054520.1133 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-08-17", "window": { "start": { "local": "2080-08-17T11:42:51+08:00", "utc": "2080-08-17T03:42:51Z", "ms": 3491091770888.906 }, "end": { "local": "2080-08-17T12:30:51+08:00", "utc": "2080-08-17T04:30:51Z", "ms": 3491094650888.906 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-08-18", "window": { "start": { "local": "2080-08-18T11:42:37+08:00", "utc": "2080-08-18T03:42:37Z", "ms": 3491178157292 }, "end": { "local": "2080-08-18T12:30:37+08:00", "utc": "2080-08-18T04:30:37Z", "ms": 3491181037292 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 09:25 on Sat 17 Aug to 06:41 on Sun 18 Aug.", "fact": "2080-08-17T01:25:16Z → 2080-08-17T22:40:55Z" }, { "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 8254 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Fuzhou, 2080: Saturday 17 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": "2080-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Madhusravā Tṛtīyā (Hariyali Teej) 2080 falls on Saturday 17 August. Tṛtīyā runs from 09:25 on Sat 17 Aug to 06:41 on Sun 18 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vinayaka-chaturthi?on=2080-08-18", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18103, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-08-18T06:40:55+08:00", "utc": "2080-08-17T22:40:55Z", "ms": 3491160054520.1133 }, "end": { "local": "2080-08-19T04:34:25+08:00", "utc": "2080-08-18T20:34:25Z", "ms": 3491238865492.0205 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-18T06:40:55+08:00", "utc": "2080-08-17T22:40:55Z", "ms": 3491160054520.1133 }, "end": { "local": "2080-08-19T04:34:25+08:00", "utc": "2080-08-18T20:34:25Z", "ms": 3491238865492.0205 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-08-18", "window": { "start": { "local": "2080-08-18T11:42:37+08:00", "utc": "2080-08-18T03:42:37Z", "ms": 3491178157292 }, "end": { "local": "2080-08-18T12:30:37+08:00", "utc": "2080-08-18T04:30:37Z", "ms": 3491181037292 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-08-19", "window": { "start": { "local": "2080-08-19T11:42:23+08:00", "utc": "2080-08-19T03:42:23Z", "ms": 3491264543194.782 }, "end": { "local": "2080-08-19T12:30:23+08:00", "utc": "2080-08-19T04:30:23Z", "ms": 3491267423194.782 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:41 on Sun 18 Aug to 04:34 on Mon 19 Aug.", "fact": "2080-08-17T22:40:55Z → 2080-08-18T20:34:25Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 18th, 11:42–12:30 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18103 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2080: Sunday 18 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": "2080-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2080 falls on Sunday 18 August. Caturthī runs from 06:41 on Sun 18 Aug to 04:34 on Mon 19 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-08-18", "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/2080/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25678, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2080-08-19T04:34:25+08:00", "utc": "2080-08-18T20:34:25Z", "ms": 3491238865492.0205 }, "end": { "local": "2080-08-20T03:11:39+08:00", "utc": "2080-08-19T19:11:39Z", "ms": 3491320299125.4756 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-19T04:34:25+08:00", "utc": "2080-08-18T20:34:25Z", "ms": 3491238865492.0205 }, "end": { "local": "2080-08-20T03:11:39+08:00", "utc": "2080-08-19T19:11:39Z", "ms": 3491320299125.4756 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-08-19", "window": { "start": { "local": "2080-08-19T11:42:23+08:00", "utc": "2080-08-19T03:42:23Z", "ms": 3491264543194.782 }, "end": { "local": "2080-08-19T12:30:23+08:00", "utc": "2080-08-19T04:30:23Z", "ms": 3491267423194.782 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-08-20", "window": { "start": { "local": "2080-08-20T11:42:09+08:00", "utc": "2080-08-20T03:42:09Z", "ms": 3491350928607.052 }, "end": { "local": "2080-08-20T12:30:09+08:00", "utc": "2080-08-20T04:30:09Z", "ms": 3491353808607.052 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 04:34 on Mon 19 Aug to 03:12 on Tue 20 Aug.", "fact": "2080-08-18T20:34:25Z → 2080-08-19T19:11:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 19th, 11:42–12:30 on the 20th.", "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 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 25678 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Fuzhou, 2080: Monday 19 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": "2080-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Nāga Pañcamī 2080 falls on Monday 19 August. Pañcamī runs from 04:34 on Mon 19 Aug to 03:12 on Tue 20 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-08-26", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5378, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-08-25T07:10:17+08:00", "utc": "2080-08-24T23:10:17Z", "ms": 3491766617495.364 }, "end": { "local": "2080-08-26T09:27:09+08:00", "utc": "2080-08-26T01:27:09Z", "ms": 3491861228804.159 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-25T07:10:17+08:00", "utc": "2080-08-24T23:10:17Z", "ms": 3491766617495.364 }, "end": { "local": "2080-08-26T09:27:09+08:00", "utc": "2080-08-26T01:27:09Z", "ms": 3491861228804.159 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-08-25", "window": { "start": { "local": "2080-08-25T05:40:40+08:00", "utc": "2080-08-24T21:40:40Z", "ms": 3491761239817.828 }, "end": { "local": "2080-08-25T05:40:40+08:00", "utc": "2080-08-24T21:40:40Z", "ms": 3491761239817.828 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-08-26", "window": { "start": { "local": "2080-08-26T05:41:05+08:00", "utc": "2080-08-25T21:41:05Z", "ms": 3491847665355.2646 }, "end": { "local": "2080-08-26T05:41:05+08:00", "utc": "2080-08-25T21:41:05Z", "ms": 3491847665355.2646 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 07:10 on Sun 25 Aug to 09:27 on Mon 26 Aug.", "fact": "2080-08-24T23:10:17Z → 2080-08-26T01:27:09Z" }, { "step": "kaala", "text": "Sunrise is at 05:41 on the 25th and 05:41 on the 26th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 25th and is on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5378 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Fuzhou, 2080: Monday 26 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Putradā Ekādaśī 2080 falls on Monday 26 August. Ekādaśī runs from 07:10 on Sun 25 Aug to 09:27 on Mon 26 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-08-26", "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/2080/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 735, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2080-08-26T09:27:09+08:00", "utc": "2080-08-26T01:27:09Z", "ms": 3491861228804.159 }, "end": { "local": "2080-08-27T11:52:29+08:00", "utc": "2080-08-27T03:52:29Z", "ms": 3491956348506.68 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-26T09:27:09+08:00", "utc": "2080-08-26T01:27:09Z", "ms": 3491861228804.159 }, "end": { "local": "2080-08-27T11:52:29+08:00", "utc": "2080-08-27T03:52:29Z", "ms": 3491956348506.68 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-08-26", "window": { "start": { "local": "2080-08-26T11:40:31+08:00", "utc": "2080-08-26T03:40:31Z", "ms": 3491869231494.48 }, "end": { "local": "2080-08-26T12:28:31+08:00", "utc": "2080-08-26T04:28:31Z", "ms": 3491872111494.48 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-08-27", "window": { "start": { "local": "2080-08-27T11:40:14+08:00", "utc": "2080-08-27T03:40:14Z", "ms": 3491955613851.3877 }, "end": { "local": "2080-08-27T12:28:14+08:00", "utc": "2080-08-27T04:28:14Z", "ms": 3491958493851.3877 } }, "covered_min": 12, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 09:27 on Mon 26 Aug to 11:52 on Tue 27 Aug.", "fact": "2080-08-26T01:27:09Z → 2080-08-27T03:52:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 26th, 11:40–12:28 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 26th and 12 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 735 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Fuzhou, 2080: Monday 26 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": "2080-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Dāmodara Dvādaśī 2080 falls on Monday 26 August. Dvādaśī runs from 09:27 on Mon 26 Aug to 11:52 on Tue 27 Aug and covers all of madhyāhna that midday. It also reaches the next midday for 12 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/pradosha-vrata?on=2080-08-27", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14889, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-08-27T11:52:29+08:00", "utc": "2080-08-27T03:52:29Z", "ms": 3491956348506.68 }, "end": { "local": "2080-08-28T14:17:47+08:00", "utc": "2080-08-28T06:17:47Z", "ms": 3492051467082.1177 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-27T11:52:29+08:00", "utc": "2080-08-27T03:52:29Z", "ms": 3491956348506.68 }, "end": { "local": "2080-08-28T14:17:47+08:00", "utc": "2080-08-28T06:17:47Z", "ms": 3492051467082.1177 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-08-27", "window": { "start": { "local": "2080-08-27T18:26:57+08:00", "utc": "2080-08-27T10:26:57Z", "ms": 3491980016997.5 }, "end": { "local": "2080-08-27T19:56:57+08:00", "utc": "2080-08-27T11:56:57Z", "ms": 3491985416848.029 } }, "covered_min": 90, "window_min": 90, "qualifies": true }, { "local_date": "2080-08-28", "window": { "start": { "local": "2080-08-28T18:25:56+08:00", "utc": "2080-08-28T10:25:56Z", "ms": 3492066355796.4937 }, "end": { "local": "2080-08-28T19:56:07+08:00", "utc": "2080-08-28T11:56:07Z", "ms": 3492071767140.753 } }, "covered_min": 0, "window_min": 90, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:52 on Tue 27 Aug to 14:18 on Wed 28 Aug.", "fact": "2080-08-27T03:52:29Z → 2080-08-28T06:17:47Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:27–19:57 on the 27th, 18:26–19:56 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 90 of 90 minutes on the 27th and 0 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 14889 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Tuesday 27 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Tuesday 27 August. Trayodaśī runs from 11:52 on Tue 27 Aug to 14:18 on Wed 28 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-08-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-30", "confidence": "boundary", "boundary_reasons": [ "margin", "tie-break-unstated" ], "boundary_margin_s": 110, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-08-29T16:36:08+08:00", "utc": "2080-08-29T08:36:08Z", "ms": 3492146167582.8467 }, "end": { "local": "2080-08-30T18:42:02+08:00", "utc": "2080-08-30T10:42:02Z", "ms": 3492240121560.6484 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "2080-08-30T05:40:56+08:00", "utc": "2080-08-29T21:40:56Z", "ms": 3492193255514.193 }, "end": { "local": "2080-08-30T18:42:02+08:00", "utc": "2080-08-30T10:42:02Z", "ms": 3492240121560.6484 } }, "kaala": "day", "days": [ { "local_date": "2080-08-29", "window": { "start": { "local": "2080-08-29T05:42:21+08:00", "utc": "2080-08-28T21:42:21Z", "ms": 3492106940878.44 }, "end": { "local": "2080-08-30T05:42:46+08:00", "utc": "2080-08-29T21:42:46Z", "ms": 3492193365721.754 } }, "covered_min": 2, "window_min": 1440, "qualifies": true }, { "local_date": "2080-08-30", "window": { "start": { "local": "2080-08-30T05:42:46+08:00", "utc": "2080-08-29T21:42:46Z", "ms": 3492193365721.754 }, "end": { "local": "2080-08-31T05:43:10+08:00", "utc": "2080-08-30T21:43:10Z", "ms": 3492279790417.8267 } }, "covered_min": 779, "window_min": 1440, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:36 on Thu 29 Aug to 18:42 on Fri 30 Aug. Its second half begins at 05:41 on Fri 30 Aug.", "fact": "2080-08-29T08:36:08Z → 2080-08-30T10:42:02Z · second half from 2080-08-29T21:40:56Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:42 on the 29th, and from 05:43 on the 30th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The second half of Pūrṇimā must be present during the day. It covers 2 of 1440 minutes on the 29th and 779 of 1440 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 110 s < 300 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Fuzhou, 2080: Friday 30 August.", "fact": "confidence: boundary (margin, 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": "2080-08-30", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-30", "confidence": "boundary" } ], "quote": "In Fuzhou, Rakṣā Bandhana (Rakhi) 2080 falls on Friday 30 August. The second half of Pūrṇimā runs from 05:41 on Fri 30 Aug to 18:42 on Fri 30 Aug and falls on two days: 779 minutes of it on the 30th, 2 on the 29th; the rule does not say which to take, and the day that holds more of it is ruled: treat the date as contested. It is 1 min 50 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-08-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14910, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-08-29T16:36:08+08:00", "utc": "2080-08-29T08:36:08Z", "ms": 3492146167582.8467 }, "end": { "local": "2080-08-30T18:42:02+08:00", "utc": "2080-08-30T10:42:02Z", "ms": 3492240121560.6484 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "2080-08-29T16:36:08+08:00", "utc": "2080-08-29T08:36:08Z", "ms": 3492146167582.8467 }, "end": { "local": "2080-08-30T18:42:02+08:00", "utc": "2080-08-30T10:42:02Z", "ms": 3492240121560.6484 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-08-29", "window": { "start": { "local": "2080-08-29T11:39:37+08:00", "utc": "2080-08-29T03:39:37Z", "ms": 3492128377467.9565 }, "end": { "local": "2080-08-29T12:27:37+08:00", "utc": "2080-08-29T04:27:37Z", "ms": 3492131257467.9565 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-08-30", "window": { "start": { "local": "2080-08-30T11:39:19+08:00", "utc": "2080-08-30T03:39:19Z", "ms": 3492214758764.5845 }, "end": { "local": "2080-08-30T12:27:19+08:00", "utc": "2080-08-30T04:27:19Z", "ms": 3492217638764.5845 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 16:36 on Thu 29 Aug to 18:42 on Fri 30 Aug.", "fact": "2080-08-29T08:36:08Z → 2080-08-30T10:42:02Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 29th, 11:39–12:27 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14910 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Fuzhou, 2080: Friday 30 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rishi-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana" } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-08-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-08-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Ṛṣi Tarpaṇa 2080 falls on Friday 30 August. Pūrṇimā runs from 16:36 on Thu 29 Aug to 18:42 on Fri 30 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5560, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2080-08-31T20:31:06+08:00", "utc": "2080-08-31T12:31:06Z", "ms": 3492333066217.207 }, "end": { "local": "2080-09-01T21:59:36+08:00", "utc": "2080-09-01T13:59:36Z", "ms": 3492424776306.8467 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-08-31T20:31:06+08:00", "utc": "2080-08-31T12:31:06Z", "ms": 3492333066217.207 }, "end": { "local": "2080-09-01T21:59:36+08:00", "utc": "2080-09-01T13:59:36Z", "ms": 3492424776306.8467 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-08-31", "window": { "start": { "local": "2080-08-31T18:58:26+08:00", "utc": "2080-08-31T10:58:26Z", "ms": 3492327506007.487 }, "end": { "local": "2080-08-31T18:58:26+08:00", "utc": "2080-08-31T10:58:26Z", "ms": 3492327506007.487 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-09-01", "window": { "start": { "local": "2080-09-01T19:26:49+08:00", "utc": "2080-09-01T11:26:49Z", "ms": 3492415609151.7407 }, "end": { "local": "2080-09-01T19:26:49+08:00", "utc": "2080-09-01T11:26:49Z", "ms": 3492415609151.7407 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 20:31 on Sat 31 Aug to 22:00 on Sun 1 Sep.", "fact": "2080-08-31T12:31:06Z → 2080-09-01T13:59:36Z" }, { "step": "kaala", "text": "Moonrise is at 18:58 on the 31st and 19:27 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 31st and is on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 5560 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Fuzhou, 2080: Sunday 1 September.", "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": "2080-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-01", "confidence": "determinate" } ], "quote": "In Fuzhou, Aśūnya Śayana Vrata 2080 falls on Sunday 1 September. Dvitīyā runs from 20:31 on Sat 31 Aug to 22:00 on Sun 1 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34376, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2080-09-01T21:59:36+08:00", "utc": "2080-09-01T13:59:36Z", "ms": 3492424776306.8467 }, "end": { "local": "2080-09-02T23:04:03+08:00", "utc": "2080-09-02T15:04:03Z", "ms": 3492515042758.6353 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-01T21:59:36+08:00", "utc": "2080-09-01T13:59:36Z", "ms": 3492424776306.8467 }, "end": { "local": "2080-09-02T23:04:03+08:00", "utc": "2080-09-02T15:04:03Z", "ms": 3492515042758.6353 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-01", "window": { "start": { "local": "2080-09-01T11:38:40+08:00", "utc": "2080-09-01T03:38:40Z", "ms": 3492387520430.8125 }, "end": { "local": "2080-09-01T12:26:40+08:00", "utc": "2080-09-01T04:26:40Z", "ms": 3492390400430.8125 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-02", "window": { "start": { "local": "2080-09-02T11:38:21+08:00", "utc": "2080-09-02T03:38:21Z", "ms": 3492473900840.176 }, "end": { "local": "2080-09-02T12:26:21+08:00", "utc": "2080-09-02T04:26:21Z", "ms": 3492476780840.176 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 22:00 on Sun 1 Sep to 23:04 on Mon 2 Sep.", "fact": "2080-09-01T13:59:36Z → 2080-09-02T15:04:03Z" }, { "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 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 34376 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Fuzhou, 2080: Monday 2 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kajjali-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 3 Kajjali trtiya, (paraviddha), Angaveta trtiya (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Kajjalī Tṛtīyā (Kajari Teej) 2080 falls on Monday 2 September. Tṛtīyā runs from 22:00 on Sun 1 Sep to 23:04 on Mon 2 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17000, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-09-02T23:04:03+08:00", "utc": "2080-09-02T15:04:03Z", "ms": 3492515042758.6353 }, "end": { "local": "2080-09-03T23:41:06+08:00", "utc": "2080-09-03T15:41:06Z", "ms": 3492603665644.858 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-02T23:04:03+08:00", "utc": "2080-09-02T15:04:03Z", "ms": 3492515042758.6353 }, "end": { "local": "2080-09-03T23:41:06+08:00", "utc": "2080-09-03T15:41:06Z", "ms": 3492603665644.858 } }, "kaala": "sayahna", "days": [ { "local_date": "2080-09-02", "window": { "start": { "local": "2080-09-02T15:49:22+08:00", "utc": "2080-09-02T07:49:22Z", "ms": 3492488961693.7085 }, "end": { "local": "2080-09-02T18:20:42+08:00", "utc": "2080-09-02T10:20:42Z", "ms": 3492498042262.73 } }, "covered_min": 0, "window_min": 151, "qualifies": false }, { "local_date": "2080-09-03", "window": { "start": { "local": "2080-09-03T15:48:35+08:00", "utc": "2080-09-03T07:48:35Z", "ms": 3492575315341.978 }, "end": { "local": "2080-09-03T18:19:38+08:00", "utc": "2080-09-03T10:19:38Z", "ms": 3492584378240.6133 } }, "covered_min": 151, "window_min": 151, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:04 on Mon 2 Sep to 23:41 on Tue 3 Sep.", "fact": "2080-09-02T15:04:03Z → 2080-09-03T15:41:06Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:49–18:21 on the 2nd, 15:49–18:20 on the 3rd.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during sāyāhna. It covers 0 of 151 minutes on the 2nd and 151 of 151 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one late afternoon qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17000 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Fuzhou, 2080: Tuesday 3 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bahula-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day)." } ], "kaala": "sayahna", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Bahulā Caturthī 2080 falls on Tuesday 3 September. Caturthī runs from 23:04 on Mon 2 Sep to 23:41 on Tue 3 Sep and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-09-03", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11289, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-09-02T23:04:03+08:00", "utc": "2080-09-02T15:04:03Z", "ms": 3492515042758.6353 }, "end": { "local": "2080-09-03T23:41:06+08:00", "utc": "2080-09-03T15:41:06Z", "ms": 3492603665644.858 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-02T23:04:03+08:00", "utc": "2080-09-02T15:04:03Z", "ms": 3492515042758.6353 }, "end": { "local": "2080-09-03T23:41:06+08:00", "utc": "2080-09-03T15:41:06Z", "ms": 3492603665644.858 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-09-02", "window": { "start": { "local": "2080-09-02T19:55:54+08:00", "utc": "2080-09-02T11:55:54Z", "ms": 3492503753934.669 }, "end": { "local": "2080-09-02T19:55:54+08:00", "utc": "2080-09-02T11:55:54Z", "ms": 3492503753934.669 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-09-03", "window": { "start": { "local": "2080-09-03T20:26:59+08:00", "utc": "2080-09-03T12:26:59Z", "ms": 3492592019181.7485 }, "end": { "local": "2080-09-03T20:26:59+08:00", "utc": "2080-09-03T12:26:59Z", "ms": 3492592019181.7485 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:04 on Mon 2 Sep to 23:41 on Tue 3 Sep.", "fact": "2080-09-02T15:04:03Z → 2080-09-03T15:41:06Z" }, { "step": "kaala", "text": "Moonrise is at 19:56 on the 2nd and 20:27 on the 3rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 2nd and is on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11289 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Tuesday 3 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-03", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Tuesday 3 September. Caturthī runs from 23:04 on Mon 2 Sep to 23:41 on Tue 3 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-09-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39375, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2080-09-04T23:47:44+08:00", "utc": "2080-09-04T15:47:44Z", "ms": 3492690463560.0386 }, "end": { "local": "2080-09-05T23:21:36+08:00", "utc": "2080-09-05T15:21:36Z", "ms": 3492775295910.097 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-04T23:47:44+08:00", "utc": "2080-09-04T15:47:44Z", "ms": 3492690463560.0386 }, "end": { "local": "2080-09-05T23:21:36+08:00", "utc": "2080-09-05T15:21:36Z", "ms": 3492775295910.097 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-04", "window": { "start": { "local": "2080-09-04T11:37:41+08:00", "utc": "2080-09-04T03:37:41Z", "ms": 3492646660912.767 }, "end": { "local": "2080-09-04T12:25:41+08:00", "utc": "2080-09-04T04:25:41Z", "ms": 3492649540912.767 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-05", "window": { "start": { "local": "2080-09-05T11:37:21+08:00", "utc": "2080-09-05T03:37:21Z", "ms": 3492733040616.782 }, "end": { "local": "2080-09-05T12:25:21+08:00", "utc": "2080-09-05T04:25:21Z", "ms": 3492735920616.782 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 23:48 on Wed 4 Sep to 23:22 on Thu 5 Sep.", "fact": "2080-09-04T15:47:44Z → 2080-09-05T15:21:36Z" }, { "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 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 39375 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Fuzhou, 2080: Thursday 5 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "hala-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Hala sasthi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-05", "confidence": "determinate" } ], "quote": "In Fuzhou, Hala Ṣaṣṭhī 2080 falls on Thursday 5 September. Ṣaṣṭhī runs from 23:48 on Wed 4 Sep to 23:22 on Thu 5 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4542, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2080-09-06T22:21:31+08:00", "utc": "2080-09-06T14:21:31Z", "ms": 3492858090510.1514 }, "end": { "local": "2080-09-07T20:47:48+08:00", "utc": "2080-09-07T12:47:48Z", "ms": 3492938867698.1636 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-06T22:21:31+08:00", "utc": "2080-09-06T14:21:31Z", "ms": 3492858090510.1514 }, "end": { "local": "2080-09-07T20:47:48+08:00", "utc": "2080-09-07T12:47:48Z", "ms": 3492938867698.1636 } }, "kaala": "nishita", "days": [ { "local_date": "2080-09-06", "window": { "start": { "local": "2080-09-06T23:37:12+08:00", "utc": "2080-09-06T15:37:12Z", "ms": 3492862632140.537 }, "end": { "local": "2080-09-07T00:25:12+08:00", "utc": "2080-09-06T16:25:12Z", "ms": 3492865512140.537 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-09-07", "window": { "start": { "local": "2080-09-07T23:36:51+08:00", "utc": "2080-09-07T15:36:51Z", "ms": 3492949011453.699 }, "end": { "local": "2080-09-08T00:24:51+08:00", "utc": "2080-09-07T16:24:51Z", "ms": 3492951891453.699 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 22:22 on Fri 6 Sep to 20:48 on Sat 7 Sep.", "fact": "2080-09-06T14:21:31Z → 2080-09-07T12:47:48Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:37–00:25 on the 6th, 23:37–00:25 on the 7th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during niśītha. It covers 48 of 48 minutes on the 6th and 0 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 4542 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Fuzhou, 2080: Friday 6 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "janmashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami." } ], "not_evaluated": "The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.", "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Janmāṣṭamī 2080 falls on Friday 6 September. Aṣṭamī runs from 22:22 on Fri 6 Sep to 20:48 on Sat 7 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35790, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "2080-09-05T23:21:36+08:00", "utc": "2080-09-05T15:21:36Z", "ms": 3492775295910.097 }, "end": { "local": "2080-09-06T22:21:31+08:00", "utc": "2080-09-06T14:21:31Z", "ms": 3492858090510.1514 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-05T23:21:36+08:00", "utc": "2080-09-05T15:21:36Z", "ms": 3492775295910.097 }, "end": { "local": "2080-09-06T22:21:31+08:00", "utc": "2080-09-06T14:21:31Z", "ms": 3492858090510.1514 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-05", "window": { "start": { "local": "2080-09-05T11:37:21+08:00", "utc": "2080-09-05T03:37:21Z", "ms": 3492733040616.782 }, "end": { "local": "2080-09-05T12:25:21+08:00", "utc": "2080-09-05T04:25:21Z", "ms": 3492735920616.782 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-06", "window": { "start": { "local": "2080-09-06T11:37:00+08:00", "utc": "2080-09-06T03:37:00Z", "ms": 3492819420126.311 }, "end": { "local": "2080-09-06T12:25:00+08:00", "utc": "2080-09-06T04:25:00Z", "ms": 3492822300126.311 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 23:22 on Thu 5 Sep to 22:22 on Fri 6 Sep.", "fact": "2080-09-05T15:21:36Z → 2080-09-06T14:21:31Z" }, { "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": "Saptamī 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: purvaviddha → only-day · margin 35790 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Fuzhou, 2080: Friday 6 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitala-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 7 Sitala saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Śītalā Saptamī 2080 falls on Friday 6 September. Saptamī runs from 23:22 on Thu 5 Sep to 22:22 on Fri 6 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-09-10", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26860, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-09-09T16:09:45+08:00", "utc": "2080-09-09T08:09:45Z", "ms": 3493094984923.8306 }, "end": { "local": "2080-09-10T13:14:52+08:00", "utc": "2080-09-10T05:14:52Z", "ms": 3493170892343.741 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-09T16:09:45+08:00", "utc": "2080-09-09T08:09:45Z", "ms": 3493094984923.8306 }, "end": { "local": "2080-09-10T13:14:52+08:00", "utc": "2080-09-10T05:14:52Z", "ms": 3493170892343.741 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-09-09", "window": { "start": { "local": "2080-09-09T05:46:48+08:00", "utc": "2080-09-08T21:46:48Z", "ms": 3493057608184.9077 }, "end": { "local": "2080-09-09T05:46:48+08:00", "utc": "2080-09-08T21:46:48Z", "ms": 3493057608184.9077 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-09-10", "window": { "start": { "local": "2080-09-10T05:47:12+08:00", "utc": "2080-09-09T21:47:12Z", "ms": 3493144032116.072 }, "end": { "local": "2080-09-10T05:47:12+08:00", "utc": "2080-09-09T21:47:12Z", "ms": 3493144032116.072 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 16:10 on Mon 9 Sep to 13:15 on Tue 10 Sep.", "fact": "2080-09-09T08:09:45Z → 2080-09-10T05:14:52Z" }, { "step": "kaala", "text": "Sunrise is at 05:47 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 not on the 9th and is on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26860 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Fuzhou, 2080: Tuesday 10 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": "2080-09-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-10", "confidence": "determinate" } ], "quote": "In Fuzhou, Ajā Ekādaśī 2080 falls on Tuesday 10 September. Ekādaśī runs from 16:10 on Mon 9 Sep to 13:15 on Tue 10 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-09-10", "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/2080/pradosha-vrata?on=2080-09-11", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29164, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-09-11T10:04:51+08:00", "utc": "2080-09-11T02:04:51Z", "ms": 3493245890642.992 }, "end": { "local": "2080-09-12T06:47:35+08:00", "utc": "2080-09-11T22:47:35Z", "ms": 3493320455356.233 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-11T10:04:51+08:00", "utc": "2080-09-11T02:04:51Z", "ms": 3493245890642.992 }, "end": { "local": "2080-09-12T06:47:35+08:00", "utc": "2080-09-11T22:47:35Z", "ms": 3493320455356.233 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-09-11", "window": { "start": { "local": "2080-09-11T18:10:55+08:00", "utc": "2080-09-11T10:10:55Z", "ms": 3493275054821.0996 }, "end": { "local": "2080-09-11T19:43:52+08:00", "utc": "2080-09-11T11:43:52Z", "ms": 3493280631504.707 } }, "covered_min": 93, "window_min": 93, "qualifies": true }, { "local_date": "2080-09-12", "window": { "start": { "local": "2080-09-12T18:09:48+08:00", "utc": "2080-09-12T10:09:48Z", "ms": 3493361388375.465 }, "end": { "local": "2080-09-12T19:42:57+08:00", "utc": "2080-09-12T11:42:57Z", "ms": 3493366977107.4673 } }, "covered_min": 0, "window_min": 93, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 10:05 on Wed 11 Sep to 06:48 on Thu 12 Sep.", "fact": "2080-09-11T02:04:51Z → 2080-09-11T22:47:35Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:11–19:44 on the 11th, 18:10–19:43 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 93 of 93 minutes on the 11th and 0 of 93 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29164 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Wednesday 11 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": "2080-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Wednesday 11 September. Trayodaśī runs from 10:05 on Wed 11 Sep to 06:48 on Thu 12 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-09-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28126, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-09-12T06:47:35+08:00", "utc": "2080-09-11T22:47:35Z", "ms": 3493320455356.233 }, "end": { "local": "2080-09-13T03:31:43+08:00", "utc": "2080-09-12T19:31:43Z", "ms": 3493395103051.0073 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-12T06:47:35+08:00", "utc": "2080-09-11T22:47:35Z", "ms": 3493320455356.233 }, "end": { "local": "2080-09-13T03:31:43+08:00", "utc": "2080-09-12T19:31:43Z", "ms": 3493395103051.0073 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-09-11", "window": { "start": { "local": "2080-09-11T18:10:55+08:00", "utc": "2080-09-11T10:10:55Z", "ms": 3493275054821.0996 }, "end": { "local": "2080-09-11T19:43:52+08:00", "utc": "2080-09-11T11:43:52Z", "ms": 3493280631504.707 } }, "covered_min": 0, "window_min": 93, "qualifies": false }, { "local_date": "2080-09-12", "window": { "start": { "local": "2080-09-12T18:09:48+08:00", "utc": "2080-09-12T10:09:48Z", "ms": 3493361388375.465 }, "end": { "local": "2080-09-12T19:42:57+08:00", "utc": "2080-09-12T11:42:57Z", "ms": 3493366977107.4673 } }, "covered_min": 93, "window_min": 93, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:48 on Thu 12 Sep to 03:32 on Fri 13 Sep.", "fact": "2080-09-11T22:47:35Z → 2080-09-12T19:31:43Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:11–19:44 on the 11th, 18:10–19:43 on the 12th.", "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 93 minutes on the 11th and 93 of 93 on the 12th.", "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 28126 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Fuzhou, 2080: Thursday 12 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Aghora Caturdaśī 2080 falls on Thursday 12 September. Caturdaśī runs from 06:48 on Thu 12 Sep to 03:32 on Fri 13 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/shivaratri?on=2080-09-12", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11317, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-09-12T06:47:35+08:00", "utc": "2080-09-11T22:47:35Z", "ms": 3493320455356.233 }, "end": { "local": "2080-09-13T03:31:43+08:00", "utc": "2080-09-12T19:31:43Z", "ms": 3493395103051.0073 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-12T06:47:35+08:00", "utc": "2080-09-11T22:47:35Z", "ms": 3493320455356.233 }, "end": { "local": "2080-09-13T03:31:43+08:00", "utc": "2080-09-12T19:31:43Z", "ms": 3493395103051.0073 } }, "kaala": "nishita", "days": [ { "local_date": "2080-09-11", "window": { "start": { "local": "2080-09-11T23:35:27+08:00", "utc": "2080-09-11T15:35:27Z", "ms": 3493294527384.627 }, "end": { "local": "2080-09-12T00:23:27+08:00", "utc": "2080-09-11T16:23:27Z", "ms": 3493297407384.627 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-12", "window": { "start": { "local": "2080-09-12T23:35:06+08:00", "utc": "2080-09-12T15:35:06Z", "ms": 3493380906120.4736 }, "end": { "local": "2080-09-13T00:23:06+08:00", "utc": "2080-09-12T16:23:06Z", "ms": 3493383786120.4736 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:48 on Thu 12 Sep to 03:32 on Fri 13 Sep.", "fact": "2080-09-11T22:47:35Z → 2080-09-12T19:31:43Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 on the 11th, 23:35–00:23 on the 12th.", "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 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11317 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Thursday 12 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": "2080-09-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Thursday 12 September. Caturdaśī runs from 06:48 on Thu 12 Sep to 03:32 on Fri 13 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-09-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33464, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2080-09-14T00:26:11+08:00", "utc": "2080-09-13T16:26:11Z", "ms": 3493470371009.931 }, "end": { "local": "2080-09-14T21:39:56+08:00", "utc": "2080-09-14T13:39:56Z", "ms": 3493546795833.191 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-14T00:26:11+08:00", "utc": "2080-09-13T16:26:11Z", "ms": 3493470371009.931 }, "end": { "local": "2080-09-14T21:39:56+08:00", "utc": "2080-09-14T13:39:56Z", "ms": 3493546795833.191 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-13", "window": { "start": { "local": "2080-09-13T11:34:33+08:00", "utc": "2080-09-13T03:34:33Z", "ms": 3493424072824.5425 }, "end": { "local": "2080-09-13T12:22:33+08:00", "utc": "2080-09-13T04:22:33Z", "ms": 3493426952824.5425 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-14", "window": { "start": { "local": "2080-09-14T11:34:11+08:00", "utc": "2080-09-14T03:34:11Z", "ms": 3493510451430.7637 }, "end": { "local": "2080-09-14T12:22:11+08:00", "utc": "2080-09-14T04:22:11Z", "ms": 3493513331430.7637 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 00:26 on Sat 14 Sep to 21:40 on Sat 14 Sep.", "fact": "2080-09-13T16:26:11Z → 2080-09-14T13:39:56Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 13th, 11:34–12:22 on the 14th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 33464 s" }, { "step": "ruling", "text": "Rudra Vrata, Fuzhou, 2080: Saturday 14 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rudra-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Rudra vrata (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-14", "confidence": "determinate" } ], "quote": "In Fuzhou, Rudra Vrata 2080 falls on Saturday 14 September. Pratipadā runs from 00:26 on Sat 14 Sep to 21:40 on Sat 14 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19015, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "2080-09-15T19:21:29+08:00", "utc": "2080-09-15T11:21:29Z", "ms": 3493624888590.2285 }, "end": { "local": "2080-09-16T17:38:24+08:00", "utc": "2080-09-16T09:38:24Z", "ms": 3493705103850.487 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-15T19:21:29+08:00", "utc": "2080-09-15T11:21:29Z", "ms": 3493624888590.2285 }, "end": { "local": "2080-09-16T17:38:24+08:00", "utc": "2080-09-16T09:38:24Z", "ms": 3493705103850.487 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-15", "window": { "start": { "local": "2080-09-15T11:33:50+08:00", "utc": "2080-09-15T03:33:50Z", "ms": 3493596829995.6675 }, "end": { "local": "2080-09-15T12:21:50+08:00", "utc": "2080-09-15T04:21:50Z", "ms": 3493599709995.6675 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-16", "window": { "start": { "local": "2080-09-16T11:33:29+08:00", "utc": "2080-09-16T03:33:29Z", "ms": 3493683208535.034 }, "end": { "local": "2080-09-16T12:21:29+08:00", "utc": "2080-09-16T04:21:29Z", "ms": 3493686088535.034 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 19:21 on Sun 15 Sep to 17:38 on Mon 16 Sep.", "fact": "2080-09-15T11:21:29Z → 2080-09-16T09:38:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 15th, 11:33–12:21 on the 16th.", "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 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19015 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Fuzhou, 2080: Monday 16 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "haritalika-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 3 Haritalika vrata (paraviddha), Gauri vrata (Orissa), Gauri (Mysore)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Haritālikā Vrata (Hartalika Teej) 2080 falls on Monday 16 September. Tṛtīyā runs from 19:21 on Sun 15 Sep to 17:38 on Mon 16 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15334, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-09-16T17:38:24+08:00", "utc": "2080-09-16T09:38:24Z", "ms": 3493705103850.487 }, "end": { "local": "2080-09-17T16:36:41+08:00", "utc": "2080-09-17T08:36:41Z", "ms": 3493787800957.892 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-16T17:38:24+08:00", "utc": "2080-09-16T09:38:24Z", "ms": 3493705103850.487 }, "end": { "local": "2080-09-17T16:36:41+08:00", "utc": "2080-09-17T08:36:41Z", "ms": 3493787800957.892 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-16", "window": { "start": { "local": "2080-09-16T11:33:29+08:00", "utc": "2080-09-16T03:33:29Z", "ms": 3493683208535.034 }, "end": { "local": "2080-09-16T12:21:29+08:00", "utc": "2080-09-16T04:21:29Z", "ms": 3493686088535.034 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-17", "window": { "start": { "local": "2080-09-17T11:33:07+08:00", "utc": "2080-09-17T03:33:07Z", "ms": 3493769587065.466 }, "end": { "local": "2080-09-17T12:21:07+08:00", "utc": "2080-09-17T04:21:07Z", "ms": 3493772467065.466 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:38 on Mon 16 Sep to 16:37 on Tue 17 Sep.", "fact": "2080-09-16T09:38:24Z → 2080-09-17T08:36:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:33–12:21 on the 16th, 11:33–12:21 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 16th and 48 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 15334 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Fuzhou, 2080: Tuesday 17 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": "2080-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Gaṇeśa Caturthī 2080 falls on Tuesday 17 September. Caturthī runs from 17:38 on Mon 16 Sep to 16:37 on Tue 17 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14353, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2080-09-17T16:36:41+08:00", "utc": "2080-09-17T08:36:41Z", "ms": 3493787800957.892 }, "end": { "local": "2080-09-18T16:19:59+08:00", "utc": "2080-09-18T08:19:59Z", "ms": 3493873198831.017 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-17T16:36:41+08:00", "utc": "2080-09-17T08:36:41Z", "ms": 3493787800957.892 }, "end": { "local": "2080-09-18T16:19:59+08:00", "utc": "2080-09-18T08:19:59Z", "ms": 3493873198831.017 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-17", "window": { "start": { "local": "2080-09-17T11:33:07+08:00", "utc": "2080-09-17T03:33:07Z", "ms": 3493769587065.466 }, "end": { "local": "2080-09-17T12:21:07+08:00", "utc": "2080-09-17T04:21:07Z", "ms": 3493772467065.466 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-18", "window": { "start": { "local": "2080-09-18T11:32:46+08:00", "utc": "2080-09-18T03:32:46Z", "ms": 3493855965604.4707 }, "end": { "local": "2080-09-18T12:20:46+08:00", "utc": "2080-09-18T04:20:46Z", "ms": 3493858845604.4707 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 16:37 on Tue 17 Sep to 16:20 on Wed 18 Sep.", "fact": "2080-09-17T08:36:41Z → 2080-09-18T08:19:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:33–12:21 on the 17th, 11:33–12:21 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 17th and 48 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 14353 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Fuzhou, 2080: Wednesday 18 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": "2080-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Ṛṣi Pañcamī 2080 falls on Wednesday 18 September. Pañcamī runs from 16:37 on Tue 17 Sep to 16:20 on Wed 18 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14353, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2080-09-18T16:19:59+08:00", "utc": "2080-09-18T08:19:59Z", "ms": 3493873198831.017 }, "end": { "local": "2080-09-19T16:48:51+08:00", "utc": "2080-09-19T08:48:51Z", "ms": 3493961330573.975 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-18T16:19:59+08:00", "utc": "2080-09-18T08:19:59Z", "ms": 3493873198831.017 }, "end": { "local": "2080-09-19T16:48:51+08:00", "utc": "2080-09-19T08:48:51Z", "ms": 3493961330573.975 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-18", "window": { "start": { "local": "2080-09-18T11:32:46+08:00", "utc": "2080-09-18T03:32:46Z", "ms": 3493855965604.4707 }, "end": { "local": "2080-09-18T12:20:46+08:00", "utc": "2080-09-18T04:20:46Z", "ms": 3493858845604.4707 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-19", "window": { "start": { "local": "2080-09-19T11:32:24+08:00", "utc": "2080-09-19T03:32:24Z", "ms": 3493942344170.4463 }, "end": { "local": "2080-09-19T12:20:24+08:00", "utc": "2080-09-19T04:20:24Z", "ms": 3493945224170.4463 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 16:20 on Wed 18 Sep to 16:49 on Thu 19 Sep.", "fact": "2080-09-18T08:19:59Z → 2080-09-19T08:48:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:33–12:21 on the 18th, 11:32–12:20 on the 19th.", "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 18th and 48 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14353 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Fuzhou, 2080: Thursday 19 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi-bhadrapada", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Surya sasthi (paraviddha), Lolarka sasthi" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-19", "confidence": "determinate" } ], "quote": "In Fuzhou, Sūrya Ṣaṣṭhī (Bhādrapada) 2080 falls on Thursday 19 September. Ṣaṣṭhī runs from 16:20 on Wed 18 Sep to 16:49 on Thu 19 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16106, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2080-09-19T16:48:51+08:00", "utc": "2080-09-19T08:48:51Z", "ms": 3493961330573.975 }, "end": { "local": "2080-09-20T18:00:10+08:00", "utc": "2080-09-20T10:00:10Z", "ms": 3494052010130.368 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-19T16:48:51+08:00", "utc": "2080-09-19T08:48:51Z", "ms": 3493961330573.975 }, "end": { "local": "2080-09-20T18:00:10+08:00", "utc": "2080-09-20T10:00:10Z", "ms": 3494052010130.368 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-19", "window": { "start": { "local": "2080-09-19T11:32:24+08:00", "utc": "2080-09-19T03:32:24Z", "ms": 3493942344170.4463 }, "end": { "local": "2080-09-19T12:20:24+08:00", "utc": "2080-09-19T04:20:24Z", "ms": 3493945224170.4463 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-20", "window": { "start": { "local": "2080-09-20T11:32:03+08:00", "utc": "2080-09-20T03:32:03Z", "ms": 3494028722782.592 }, "end": { "local": "2080-09-20T12:20:03+08:00", "utc": "2080-09-20T04:20:03Z", "ms": 3494031602782.592 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 16:49 on Thu 19 Sep to 18:00 on Fri 20 Sep.", "fact": "2080-09-19T08:48:51Z → 2080-09-20T10:00:10Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:32–12:20 on the 19th, 11:32–12:20 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 16106 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Fuzhou, 2080: Friday 20 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "muktabharana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Muktabharana vrata (purvaviddha), Lalita saptami (Bengal & Orissa)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Muktābharaṇa Vrata 2080 falls on Friday 20 September. Saptamī runs from 16:49 on Thu 19 Sep to 18:00 on Fri 20 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20407, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2080-09-20T18:00:10+08:00", "utc": "2080-09-20T10:00:10Z", "ms": 3494052010130.368 }, "end": { "local": "2080-09-21T19:47:07+08:00", "utc": "2080-09-21T11:47:07Z", "ms": 3494144826764.113 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-20T18:00:10+08:00", "utc": "2080-09-20T10:00:10Z", "ms": 3494052010130.368 }, "end": { "local": "2080-09-21T19:47:07+08:00", "utc": "2080-09-21T11:47:07Z", "ms": 3494144826764.113 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-20", "window": { "start": { "local": "2080-09-20T11:32:03+08:00", "utc": "2080-09-20T03:32:03Z", "ms": 3494028722782.592 }, "end": { "local": "2080-09-20T12:20:03+08:00", "utc": "2080-09-20T04:20:03Z", "ms": 3494031602782.592 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-09-21", "window": { "start": { "local": "2080-09-21T11:31:41+08:00", "utc": "2080-09-21T03:31:41Z", "ms": 3494115101460.7983 }, "end": { "local": "2080-09-21T12:19:41+08:00", "utc": "2080-09-21T04:19:41Z", "ms": 3494117981460.7983 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 18:00 on Fri 20 Sep to 19:47 on Sat 21 Sep.", "fact": "2080-09-20T10:00:10Z → 2080-09-21T11:47:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:32–12:20 on the 20th, 11:32–12:20 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 20407 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Fuzhou, 2080: Saturday 21 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "radhashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini)" } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Rādhāṣṭamī 2080 falls on Saturday 21 September. Aṣṭamī runs from 18:00 on Fri 20 Sep to 19:47 on Sat 21 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-09-24", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10784, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-09-24T00:25:52+08:00", "utc": "2080-09-23T16:25:52Z", "ms": 3494334352440.849 }, "end": { "local": "2080-09-25T02:53:31+08:00", "utc": "2080-09-24T18:53:31Z", "ms": 3494429610549.3525 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-24T00:25:52+08:00", "utc": "2080-09-23T16:25:52Z", "ms": 3494334352440.849 }, "end": { "local": "2080-09-25T02:53:31+08:00", "utc": "2080-09-24T18:53:31Z", "ms": 3494429610549.3525 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-09-24", "window": { "start": { "local": "2080-09-24T05:52:50+08:00", "utc": "2080-09-23T21:52:50Z", "ms": 3494353969760.5825 }, "end": { "local": "2080-09-24T05:52:50+08:00", "utc": "2080-09-23T21:52:50Z", "ms": 3494353969760.5825 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-09-25", "window": { "start": { "local": "2080-09-25T05:53:14+08:00", "utc": "2080-09-24T21:53:14Z", "ms": 3494440394498.5327 }, "end": { "local": "2080-09-25T05:53:14+08:00", "utc": "2080-09-24T21:53:14Z", "ms": 3494440394498.5327 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:26 on Tue 24 Sep to 02:54 on Wed 25 Sep.", "fact": "2080-09-23T16:25:52Z → 2080-09-24T18:53:31Z" }, { "step": "kaala", "text": "Sunrise is at 05:53 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 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 10784 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Fuzhou, 2080: Tuesday 24 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Parivartanī Ekādaśī 2080 falls on Tuesday 24 September. Ekādaśī runs from 00:26 on Tue 24 Sep to 02:54 on Wed 25 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-09-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22702, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2080-09-25T02:53:31+08:00", "utc": "2080-09-24T18:53:31Z", "ms": 3494429610549.3525 }, "end": { "local": "2080-09-26T05:11:34+08:00", "utc": "2080-09-25T21:11:34Z", "ms": 3494524294352.4976 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-25T02:53:31+08:00", "utc": "2080-09-24T18:53:31Z", "ms": 3494429610549.3525 }, "end": { "local": "2080-09-26T05:11:34+08:00", "utc": "2080-09-25T21:11:34Z", "ms": 3494524294352.4976 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-09-25", "window": { "start": { "local": "2080-09-25T11:30:17+08:00", "utc": "2080-09-25T03:30:17Z", "ms": 3494460617250.912 }, "end": { "local": "2080-09-25T12:18:17+08:00", "utc": "2080-09-25T04:18:17Z", "ms": 3494463497250.912 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-09-26", "window": { "start": { "local": "2080-09-26T11:29:57+08:00", "utc": "2080-09-26T03:29:57Z", "ms": 3494546996575.8027 }, "end": { "local": "2080-09-26T12:17:57+08:00", "utc": "2080-09-26T04:17:57Z", "ms": 3494549876575.8027 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 02:54 on Wed 25 Sep to 05:12 on Thu 26 Sep.", "fact": "2080-09-24T18:53:31Z → 2080-09-25T21:11:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:30–12:18 on the 25th, 11:30–12:18 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 0 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22702 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Fuzhou, 2080: Wednesday 25 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vamana-jayanti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Visnuparivartanotsava, Sakrotthana (in any of the naksatras U. Asadha, Sravana & Dhanistha), Kalki dvadasi, Sravana dvadasi (when combined with naksatra Sravana), Vamana jayanti (madhyahna vyapini)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-25", "confidence": "determinate" } ], "quote": "In Fuzhou, Vāmana Jayantī 2080 falls on Wednesday 25 September. Dvādaśī runs from 02:54 on Wed 25 Sep to 05:12 on Thu 26 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/pradosha-vrata?on=2080-09-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34828, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-09-26T05:11:34+08:00", "utc": "2080-09-25T21:11:34Z", "ms": 3494524294352.4976 }, "end": { "local": "2080-09-27T07:11:24+08:00", "utc": "2080-09-26T23:11:24Z", "ms": 3494617883584.0957 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-26T05:11:34+08:00", "utc": "2080-09-25T21:11:34Z", "ms": 3494524294352.4976 }, "end": { "local": "2080-09-27T07:11:24+08:00", "utc": "2080-09-26T23:11:24Z", "ms": 3494617883584.0957 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-09-25", "window": { "start": { "local": "2080-09-25T17:55:20+08:00", "utc": "2080-09-25T09:55:20Z", "ms": 3494483720003.292 }, "end": { "local": "2080-09-25T19:31:07+08:00", "utc": "2080-09-25T11:31:07Z", "ms": 3494489466588.7485 } }, "covered_min": 0, "window_min": 96, "qualifies": false }, { "local_date": "2080-09-26", "window": { "start": { "local": "2080-09-26T17:54:14+08:00", "utc": "2080-09-26T09:54:14Z", "ms": 3494570053757.388 }, "end": { "local": "2080-09-26T19:30:13+08:00", "utc": "2080-09-26T11:30:13Z", "ms": 3494575812518.3154 } }, "covered_min": 96, "window_min": 96, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 05:12 on Thu 26 Sep to 07:11 on Fri 27 Sep.", "fact": "2080-09-25T21:11:34Z → 2080-09-26T23:11:24Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:55–19:31 on the 25th, 17:54–19:30 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 96 minutes on the 25th and 96 of 96 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 34828 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Thursday 26 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Thursday 26 September. Trayodaśī runs from 05:12 on Thu 26 Sep to 07:11 on Fri 27 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-09-26", "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/2080/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-09-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1743, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-09-27T07:11:24+08:00", "utc": "2080-09-26T23:11:24Z", "ms": 3494617883584.0957 }, "end": { "local": "2080-09-28T08:47:03+08:00", "utc": "2080-09-28T00:47:03Z", "ms": 3494710022979.2573 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "2080-09-27T07:11:24+08:00", "utc": "2080-09-26T23:11:24Z", "ms": 3494617883584.0957 }, "end": { "local": "2080-09-28T08:47:03+08:00", "utc": "2080-09-28T00:47:03Z", "ms": 3494710022979.2573 } }, "kaala": "udaya-3", "days": [ { "local_date": "2080-09-27", "window": { "start": { "local": "2080-09-27T05:54:04+08:00", "utc": "2080-09-26T21:54:04Z", "ms": 3494613244464.344 }, "end": { "local": "2080-09-27T08:17:53+08:00", "utc": "2080-09-27T00:17:53Z", "ms": 3494621873117.1064 } }, "covered_min": 66, "window_min": 144, "qualifies": false }, { "local_date": "2080-09-28", "window": { "start": { "local": "2080-09-28T05:54:30+08:00", "utc": "2080-09-27T21:54:30Z", "ms": 3494699669726.0996 }, "end": { "local": "2080-09-28T08:18:00+08:00", "utc": "2080-09-28T00:18:00Z", "ms": 3494708280169.745 } }, "covered_min": 144, "window_min": 144, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 07:11 on Fri 27 Sep to 08:47 on Sat 28 Sep.", "fact": "2080-09-26T23:11:24Z → 2080-09-28T00:47:03Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:54–08:18 on the 27th, 05:54–08:18 on the 28th.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must hold through the first three muhūrtas after sunrise. It covers 66 of 144 minutes on the 27th and 144 of 144 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one morning qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1743 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Fuzhou, 2080: Saturday 28 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": "2080-09-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-09-28", "confidence": "determinate" } ], "quote": "In Fuzhou, Ananta Caturdaśī 2080 falls on Saturday 28 September. Caturdaśī runs from 07:11 on Fri 27 Sep to 08:47 on Sat 28 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-10-02", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33087, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-10-02T10:29:48+08:00", "utc": "2080-10-02T02:29:48Z", "ms": 3495061787878.6016 }, "end": { "local": "2080-10-03T09:48:16+08:00", "utc": "2080-10-03T01:48:16Z", "ms": 3495145696494.3594 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-02T10:29:48+08:00", "utc": "2080-10-02T02:29:48Z", "ms": 3495061787878.6016 }, "end": { "local": "2080-10-03T09:48:16+08:00", "utc": "2080-10-03T01:48:16Z", "ms": 3495145696494.3594 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-10-02", "window": { "start": { "local": "2080-10-02T19:41:14+08:00", "utc": "2080-10-02T11:41:14Z", "ms": 3495094874380.225 }, "end": { "local": "2080-10-02T19:41:14+08:00", "utc": "2080-10-02T11:41:14Z", "ms": 3495094874380.225 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-10-03", "window": { "start": { "local": "2080-10-03T20:25:57+08:00", "utc": "2080-10-03T12:25:57Z", "ms": 3495183957209.7363 }, "end": { "local": "2080-10-03T20:25:57+08:00", "utc": "2080-10-03T12:25:57Z", "ms": 3495183957209.7363 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:30 on Wed 2 Oct to 09:48 on Thu 3 Oct.", "fact": "2080-10-02T02:29:48Z → 2080-10-03T01:48:16Z" }, { "step": "kaala", "text": "Moonrise is at 19:41 on the 2nd and 20:26 on the 3rd.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 2nd and is not on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33087 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Wednesday 2 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-02", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Wednesday 2 October. Caturthī runs from 10:30 on Wed 2 Oct to 09:48 on Thu 3 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-10-02", "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/2080/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35906, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2080-10-04T08:43:12+08:00", "utc": "2080-10-04T00:43:12Z", "ms": 3495228191675.8975 }, "end": { "local": "2080-10-05T07:16:35+08:00", "utc": "2080-10-04T23:16:35Z", "ms": 3495309395356.6973 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-04T08:43:12+08:00", "utc": "2080-10-04T00:43:12Z", "ms": 3495228191675.8975 }, "end": { "local": "2080-10-05T07:16:35+08:00", "utc": "2080-10-04T23:16:35Z", "ms": 3495309395356.6973 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-10-03", "window": { "start": { "local": "2080-10-03T20:25:57+08:00", "utc": "2080-10-03T12:25:57Z", "ms": 3495183957209.7363 }, "end": { "local": "2080-10-03T20:25:57+08:00", "utc": "2080-10-03T12:25:57Z", "ms": 3495183957209.7363 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-10-04", "window": { "start": { "local": "2080-10-04T21:18:10+08:00", "utc": "2080-10-04T13:18:10Z", "ms": 3495273489610.15 }, "end": { "local": "2080-10-04T21:18:10+08:00", "utc": "2080-10-04T13:18:10Z", "ms": 3495273489610.15 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 08:43 on Fri 4 Oct to 07:17 on Sat 5 Oct.", "fact": "2080-10-04T00:43:12Z → 2080-10-04T23:16:35Z" }, { "step": "kaala", "text": "Moonrise is at 20:26 on the 3rd and 21:18 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is not on the 3rd and is on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 35906 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Fuzhou, 2080: Friday 4 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chandra-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Candra Ṣaṣṭhī 2080 falls on Friday 4 October. Ṣaṣṭhī runs from 08:43 on Fri 4 Oct to 07:17 on Sat 5 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29181, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2080-10-06T05:30:39+08:00", "utc": "2080-10-05T21:30:39Z", "ms": 3495389438630.2246 }, "end": { "local": "2080-10-07T03:27:49+08:00", "utc": "2080-10-06T19:27:49Z", "ms": 3495468469297.009 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-06T05:30:39+08:00", "utc": "2080-10-05T21:30:39Z", "ms": 3495389438630.2246 }, "end": { "local": "2080-10-07T03:27:49+08:00", "utc": "2080-10-06T19:27:49Z", "ms": 3495468469297.009 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-10-05", "window": { "start": { "local": "2080-10-05T17:44:31+08:00", "utc": "2080-10-05T09:44:31Z", "ms": 3495347070779.306 }, "end": { "local": "2080-10-05T19:22:19+08:00", "utc": "2080-10-05T11:22:19Z", "ms": 3495352938787.89 } }, "covered_min": 0, "window_min": 98, "qualifies": false }, { "local_date": "2080-10-06", "window": { "start": { "local": "2080-10-06T17:43:28+08:00", "utc": "2080-10-06T09:43:28Z", "ms": 3495433408010.261 }, "end": { "local": "2080-10-06T19:21:28+08:00", "utc": "2080-10-06T11:21:28Z", "ms": 3495439288090.525 } }, "covered_min": 98, "window_min": 98, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 05:31 on Sun 6 Oct to 03:28 on Mon 7 Oct.", "fact": "2080-10-05T21:30:39Z → 2080-10-06T19:27:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:45–19:22 on the 5th, 17:43–19:21 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 0 of 98 minutes on the 5th and 98 of 98 on the 6th.", "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 29181 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Fuzhou, 2080: Sunday 6 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "jitashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Jitāṣṭamī (Jitiya) 2080 falls on Sunday 6 October. Aṣṭamī runs from 05:31 on Sun 6 Oct to 03:28 on Mon 7 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14662, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2080-10-06T05:30:39+08:00", "utc": "2080-10-05T21:30:39Z", "ms": 3495389438630.2246 }, "end": { "local": "2080-10-07T03:27:49+08:00", "utc": "2080-10-06T19:27:49Z", "ms": 3495468469297.009 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-06T05:30:39+08:00", "utc": "2080-10-05T21:30:39Z", "ms": 3495389438630.2246 }, "end": { "local": "2080-10-07T03:27:49+08:00", "utc": "2080-10-06T19:27:49Z", "ms": 3495468469297.009 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-10-05", "window": { "start": { "local": "2080-10-05T22:17:54+08:00", "utc": "2080-10-05T14:17:54Z", "ms": 3495363474037.2446 }, "end": { "local": "2080-10-05T22:17:54+08:00", "utc": "2080-10-05T14:17:54Z", "ms": 3495363474037.2446 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-10-06", "window": { "start": { "local": "2080-10-06T23:23:27+08:00", "utc": "2080-10-06T15:23:27Z", "ms": 3495453807394.7686 }, "end": { "local": "2080-10-06T23:23:27+08:00", "utc": "2080-10-06T15:23:27Z", "ms": 3495453807394.7686 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 05:31 on Sun 6 Oct to 03:28 on Mon 7 Oct.", "fact": "2080-10-05T21:30:39Z → 2080-10-06T19:27:49Z" }, { "step": "kaala", "text": "Moonrise is at 22:18 on the 5th and 23:23 on the 6th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 5th and is on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14662 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Fuzhou, 2080: Sunday 6 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalakshmi-vrata-samapana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-06", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahālakṣmī Vrata Samāpana 2080 falls on Sunday 6 October. Aṣṭamī runs from 05:31 on Sun 6 Oct to 03:28 on Mon 7 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-10-09", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26138, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-10-08T22:43:47+08:00", "utc": "2080-10-08T14:43:47Z", "ms": 3495624227009.175 }, "end": { "local": "2080-10-09T20:10:19+08:00", "utc": "2080-10-09T12:10:19Z", "ms": 3495701418983.112 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-08T22:43:47+08:00", "utc": "2080-10-08T14:43:47Z", "ms": 3495624227009.175 }, "end": { "local": "2080-10-09T20:10:19+08:00", "utc": "2080-10-09T12:10:19Z", "ms": 3495701418983.112 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-10-09", "window": { "start": { "local": "2080-10-09T05:59:25+08:00", "utc": "2080-10-08T21:59:25Z", "ms": 3495650365219.3726 }, "end": { "local": "2080-10-09T05:59:25+08:00", "utc": "2080-10-08T21:59:25Z", "ms": 3495650365219.3726 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-10-10", "window": { "start": { "local": "2080-10-10T05:59:54+08:00", "utc": "2080-10-09T21:59:54Z", "ms": 3495736794076.721 }, "end": { "local": "2080-10-10T05:59:54+08:00", "utc": "2080-10-09T21:59:54Z", "ms": 3495736794076.721 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:44 on Tue 8 Oct to 20:10 on Wed 9 Oct.", "fact": "2080-10-08T14:43:47Z → 2080-10-09T12:10:19Z" }, { "step": "kaala", "text": "Sunrise is at 05:59 on the 9th and 06:00 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 26138 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Fuzhou, 2080: Wednesday 9 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": "2080-10-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Indirā Ekādaśī 2080 falls on Wednesday 9 October. Ekādaśī runs from 22:44 on Tue 8 Oct to 20:10 on Wed 9 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-10-09", "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/2080/pradosha-vrata?on=2080-10-10", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-10", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 224, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-10-10T17:35:39+08:00", "utc": "2080-10-10T09:35:39Z", "ms": 3495778538633.619 }, "end": { "local": "2080-10-11T15:05:32+08:00", "utc": "2080-10-11T07:05:32Z", "ms": 3495855932352.191 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-10T17:35:39+08:00", "utc": "2080-10-10T09:35:39Z", "ms": 3495778538633.619 }, "end": { "local": "2080-10-11T15:05:32+08:00", "utc": "2080-10-11T07:05:32Z", "ms": 3495855932352.191 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-10-10", "window": { "start": { "local": "2080-10-10T17:39:22+08:00", "utc": "2080-10-10T09:39:22Z", "ms": 3495778762281.9814 }, "end": { "local": "2080-10-10T19:18:10+08:00", "utc": "2080-10-10T11:18:10Z", "ms": 3495784690419.4907 } }, "covered_min": 99, "window_min": 99, "qualifies": true }, { "local_date": "2080-10-11", "window": { "start": { "local": "2080-10-11T17:38:22+08:00", "utc": "2080-10-11T09:38:22Z", "ms": 3495865102319.4062 }, "end": { "local": "2080-10-11T19:17:22+08:00", "utc": "2080-10-11T11:17:22Z", "ms": 3495871042401.4893 } }, "covered_min": 0, "window_min": 99, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:36 on Thu 10 Oct to 15:06 on Fri 11 Oct.", "fact": "2080-10-10T09:35:39Z → 2080-10-11T07:05:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:18 on the 10th, 17:38–19:17 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 224 s < 300 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Thursday 10 October.", "fact": "confidence: boundary (margin)" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-10", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-10", "confidence": "boundary" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Thursday 10 October. Trayodaśī runs from 17:36 on Thu 10 Oct to 15:06 on Fri 11 Oct and covers all of pradoṣa that evening. It is 3 min 44 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-10-10", "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/2080/shivaratri?on=2080-10-11", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30005, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-10-11T15:05:32+08:00", "utc": "2080-10-11T07:05:32Z", "ms": 3495855932352.191 }, "end": { "local": "2080-10-12T12:46:26+08:00", "utc": "2080-10-12T04:46:26Z", "ms": 3495933985801.365 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-11T15:05:32+08:00", "utc": "2080-10-11T07:05:32Z", "ms": 3495855932352.191 }, "end": { "local": "2080-10-12T12:46:26+08:00", "utc": "2080-10-12T04:46:26Z", "ms": 3495933985801.365 } }, "kaala": "nishita", "days": [ { "local_date": "2080-10-11", "window": { "start": { "local": "2080-10-11T23:25:38+08:00", "utc": "2080-10-11T15:25:38Z", "ms": 3495885937627.2173 }, "end": { "local": "2080-10-12T00:13:38+08:00", "utc": "2080-10-11T16:13:38Z", "ms": 3495888817627.2173 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-10-12", "window": { "start": { "local": "2080-10-12T23:25:23+08:00", "utc": "2080-10-12T15:25:23Z", "ms": 3495972322970.745 }, "end": { "local": "2080-10-13T00:13:23+08:00", "utc": "2080-10-12T16:13:23Z", "ms": 3495975202970.745 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 15:06 on Fri 11 Oct to 12:46 on Sat 12 Oct.", "fact": "2080-10-11T07:05:32Z → 2080-10-12T04:46:26Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:26–00:14 on the 11th, 23:25–00:13 on the 12th.", "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 11th and 0 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 30005 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Friday 11 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": "2080-10-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Friday 11 October. Caturdaśī runs from 15:06 on Fri 11 Oct to 12:46 on Sat 12 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-10-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 741, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2080-10-12T12:46:26+08:00", "utc": "2080-10-12T04:46:26Z", "ms": 3495933985801.365 }, "end": { "local": "2080-10-13T10:45:12+08:00", "utc": "2080-10-13T02:45:12Z", "ms": 3496013111736.9053 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-12T12:46:26+08:00", "utc": "2080-10-12T04:46:26Z", "ms": 3495933985801.365 }, "end": { "local": "2080-10-13T10:45:12+08:00", "utc": "2080-10-13T02:45:12Z", "ms": 3496013111736.9053 } }, "kaala": "aparahna", "days": [ { "local_date": "2080-10-12", "window": { "start": { "local": "2080-10-12T12:58:47+08:00", "utc": "2080-10-12T04:58:47Z", "ms": 3495934726970.8296 }, "end": { "local": "2080-10-12T15:18:05+08:00", "utc": "2080-10-12T07:18:05Z", "ms": 3495943084982.763 } }, "covered_min": 139, "window_min": 139, "qualifies": true }, { "local_date": "2080-10-13", "window": { "start": { "local": "2080-10-13T12:58:24+08:00", "utc": "2080-10-13T04:58:24Z", "ms": 3496021103777.821 }, "end": { "local": "2080-10-13T15:17:24+08:00", "utc": "2080-10-13T07:17:24Z", "ms": 3496029444054.83 } }, "covered_min": 0, "window_min": 139, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 12:46 on Sat 12 Oct to 10:45 on Sun 13 Oct.", "fact": "2080-10-12T04:46:26Z → 2080-10-13T02:45:12Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 12:59–15:18 on the 12th, 12:58–15:17 on the 13th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 139 of 139 minutes on the 12th and 0 of 139 on the 13th.", "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 741 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Fuzhou, 2080: Saturday 12 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalaya-amavasya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Mahalaya amavasya (aparahnavyapini)" } ], "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.", "kaala": "aparahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahālaya Amāvāsyā 2080 falls on Saturday 12 October. Amāvasyā runs from 12:46 on Sat 12 Oct to 10:45 on Sun 13 Oct and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2382, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2080-10-13T10:45:12+08:00", "utc": "2080-10-13T02:45:12Z", "ms": 3496013111736.9053 }, "end": { "local": "2080-10-14T09:08:50+08:00", "utc": "2080-10-14T01:08:50Z", "ms": 3496093730347.7637 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-13T10:45:12+08:00", "utc": "2080-10-13T02:45:12Z", "ms": 3496013111736.9053 }, "end": { "local": "2080-10-14T09:08:50+08:00", "utc": "2080-10-14T01:08:50Z", "ms": 3496093730347.7637 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-10-13", "window": { "start": { "local": "2080-10-13T11:24:54+08:00", "utc": "2080-10-13T03:24:54Z", "ms": 3496015493639.3164 }, "end": { "local": "2080-10-13T12:12:54+08:00", "utc": "2080-10-13T04:12:54Z", "ms": 3496018373639.3164 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-10-14", "window": { "start": { "local": "2080-10-14T11:24:40+08:00", "utc": "2080-10-14T03:24:40Z", "ms": 3496101879853.727 }, "end": { "local": "2080-10-14T12:12:40+08:00", "utc": "2080-10-14T04:12:40Z", "ms": 3496104759853.727 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 10:45 on Sun 13 Oct to 09:09 on Mon 14 Oct.", "fact": "2080-10-13T02:45:12Z → 2080-10-14T01:08:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:25–12:13 on the 13th, 11:25–12:13 on the 14th.", "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 13th and 0 of 48 on the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2382 s" }, { "step": "ruling", "text": "Navarātrārambha, Fuzhou, 2080: Sunday 13 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Navarātrārambha (Navratri) 2080 falls on Sunday 13 October. Pratipadā runs from 10:45 on Sun 13 Oct to 09:09 on Mon 14 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vinayaka-chaturthi?on=2080-10-16", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12881, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-10-16T07:36:17+08:00", "utc": "2080-10-15T23:36:17Z", "ms": 3496260976527.2715 }, "end": { "local": "2080-10-17T07:49:21+08:00", "utc": "2080-10-16T23:49:21Z", "ms": 3496348161098.132 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-16T07:36:17+08:00", "utc": "2080-10-15T23:36:17Z", "ms": 3496260976527.2715 }, "end": { "local": "2080-10-17T07:49:21+08:00", "utc": "2080-10-16T23:49:21Z", "ms": 3496348161098.132 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-10-16", "window": { "start": { "local": "2080-10-16T11:24:14+08:00", "utc": "2080-10-16T03:24:14Z", "ms": 3496274653958.1367 }, "end": { "local": "2080-10-16T12:12:14+08:00", "utc": "2080-10-16T04:12:14Z", "ms": 3496277533958.1367 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-10-17", "window": { "start": { "local": "2080-10-17T11:24:02+08:00", "utc": "2080-10-17T03:24:02Z", "ms": 3496361041876.457 }, "end": { "local": "2080-10-17T12:12:02+08:00", "utc": "2080-10-17T04:12:02Z", "ms": 3496363921876.457 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 07:36 on Wed 16 Oct to 07:49 on Thu 17 Oct.", "fact": "2080-10-15T23:36:17Z → 2080-10-16T23:49:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 16th, 11:24–12:12 on the 17th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12881 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2080: Wednesday 16 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": "2080-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2080 falls on Wednesday 16 October. Caturthī runs from 07:36 on Wed 16 Oct to 07:49 on Thu 17 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-10-16", "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/2080/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12423, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2080-10-19T10:17:20+08:00", "utc": "2080-10-19T02:17:20Z", "ms": 3496529839716.5386 }, "end": { "local": "2080-10-20T12:22:03+08:00", "utc": "2080-10-20T04:22:03Z", "ms": 3496623723326.624 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-19T10:17:20+08:00", "utc": "2080-10-19T02:17:20Z", "ms": 3496529839716.5386 }, "end": { "local": "2080-10-20T12:22:03+08:00", "utc": "2080-10-20T04:22:03Z", "ms": 3496623723326.624 } }, "kaala": "udaya-1", "days": [ { "local_date": "2080-10-19", "window": { "start": { "local": "2080-10-19T06:04:31+08:00", "utc": "2080-10-18T22:04:31Z", "ms": 3496514671421.796 }, "end": { "local": "2080-10-19T06:50:17+08:00", "utc": "2080-10-18T22:50:17Z", "ms": 3496517416501.341 } }, "covered_min": 0, "window_min": 46, "qualifies": false }, { "local_date": "2080-10-20", "window": { "start": { "local": "2080-10-20T06:05:04+08:00", "utc": "2080-10-19T22:05:04Z", "ms": 3496601104269.317 }, "end": { "local": "2080-10-20T06:50:44+08:00", "utc": "2080-10-19T22:50:44Z", "ms": 3496603843603.0107 } }, "covered_min": 46, "window_min": 46, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 10:17 on Sat 19 Oct to 12:22 on Sun 20 Oct.", "fact": "2080-10-19T02:17:20Z → 2080-10-20T04:22:03Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:05–06:50 on the 19th, 06:05–06:51 on the 20th.", "fact": "udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must hold through the first muhūrta after sunrise. It covers 0 of 46 minutes on the 19th and 46 of 46 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one morning qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12423 s" }, { "step": "ruling", "text": "Durgā Saptamī, Fuzhou, 2080: Sunday 20 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "durga-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Durga saptami (paraviddha) — covering one muhurta from sunrise" } ], "kaala": "udaya-1", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Durgā Saptamī 2080 falls on Sunday 20 October. Saptamī runs from 10:17 on Sat 19 Oct to 12:22 on Sun 20 Oct and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 634, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2080-10-20T12:22:03+08:00", "utc": "2080-10-20T04:22:03Z", "ms": 3496623723326.624 }, "end": { "local": "2080-10-21T14:47:06+08:00", "utc": "2080-10-21T06:47:06Z", "ms": 3496718825600.1147 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-20T12:22:03+08:00", "utc": "2080-10-20T04:22:03Z", "ms": 3496623723326.624 }, "end": { "local": "2080-10-21T14:47:06+08:00", "utc": "2080-10-21T06:47:06Z", "ms": 3496718825600.1147 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-10-20", "window": { "start": { "local": "2080-10-20T11:23:29+08:00", "utc": "2080-10-20T03:23:29Z", "ms": 3496620209272.0195 }, "end": { "local": "2080-10-20T12:11:29+08:00", "utc": "2080-10-20T04:11:29Z", "ms": 3496623089272.0195 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-10-21", "window": { "start": { "local": "2080-10-21T11:23:20+08:00", "utc": "2080-10-21T03:23:20Z", "ms": 3496706599667.7305 }, "end": { "local": "2080-10-21T12:11:20+08:00", "utc": "2080-10-21T04:11:20Z", "ms": 3496709479667.7305 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:22 on Sun 20 Oct to 14:47 on Mon 21 Oct.", "fact": "2080-10-20T04:22:03Z → 2080-10-21T06:47:06Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:23–12:11 on the 20th, 11:23–12:11 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 634 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Fuzhou, 2080: Monday 21 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Mahastami (paraviddha)" } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahāṣṭamī (Durga Ashtami) 2080 falls on Monday 21 October. Aṣṭamī runs from 12:22 on Sun 20 Oct to 14:47 on Mon 21 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 570, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "2080-10-22T17:18:41+08:00", "utc": "2080-10-22T09:18:41Z", "ms": 3496814320595.1914 }, "end": { "local": "2080-10-23T19:42:23+08:00", "utc": "2080-10-23T11:42:23Z", "ms": 3496909343016.297 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "2080-10-22T17:18:41+08:00", "utc": "2080-10-22T09:18:41Z", "ms": 3496814320595.1914 }, "end": { "local": "2080-10-22T18:10:21+08:00", "utc": "2080-10-22T10:10:21Z", "ms": 3496817420837.1772 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "2080-10-21T15:10:21+08:00", "utc": "2080-10-21T07:10:21Z", "ms": 3496720221204.561 }, "end": { "local": "2080-10-22T18:10:21+08:00", "utc": "2080-10-22T10:10:21Z", "ms": 3496817420837.1772 } } }, "kaala": "daytime", "days": [ { "local_date": "2080-10-22", "window": { "start": { "local": "2080-10-22T06:06:11+08:00", "utc": "2080-10-21T22:06:11Z", "ms": 3496773971229.133 }, "end": { "local": "2080-10-22T17:28:10+08:00", "utc": "2080-10-22T09:28:10Z", "ms": 3496814890212.5366 } }, "covered_min": 9, "window_min": 682, "qualifies": true }, { "local_date": "2080-10-23", "window": { "start": { "local": "2080-10-23T06:06:45+08:00", "utc": "2080-10-22T22:06:45Z", "ms": 3496860405349.0166 }, "end": { "local": "2080-10-23T17:27:20+08:00", "utc": "2080-10-23T09:27:20Z", "ms": 3496901239544.321 } }, "covered_min": 0, "window_min": 681, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 17:19 on Tue 22 Oct to 19:42 on Wed 23 Oct, and Śravaṇa from 15:10 on Mon 21 Oct to 18:10 on Tue 22 Oct. They are together from 17:19 on Tue 22 Oct to 18:10 on Tue 22 Oct.", "fact": "2080-10-22T09:18:41Z → 2080-10-22T10:10:21Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 06:06–17:28 on the 22nd, 06:07–17:27 on the 23rd.", "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 9 of 682 minutes on the 22nd and 0 of 681 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 570 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Fuzhou, 2080: Tuesday 22 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vijaya-dashami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 10 Vijaya dasami (In Bengal it is observed as paraviddha, covering one muhurta from sunrise. In other places, if it touches Sravana naksatra in the day time it is observed on that day), Sarasvati visarjana (to be observed in naksatra Sravana), Dasahara." } ], "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day", "conjunction": { "nakshatra": "Śravaṇa", "kaala": "daytime" } }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Vijayā Daśamī (Dussehra) 2080 falls on Tuesday 22 October. Daśamī runs from 17:19 on Tue 22 Oct to 19:42 on Wed 23 Oct and is with Śravaṇa in the day time that day, for 9 minutes.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9346, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2080-10-21T14:47:06+08:00", "utc": "2080-10-21T06:47:06Z", "ms": 3496718825600.1147 }, "end": { "local": "2080-10-22T17:18:41+08:00", "utc": "2080-10-22T09:18:41Z", "ms": 3496814320595.1914 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-21T14:47:06+08:00", "utc": "2080-10-21T06:47:06Z", "ms": 3496718825600.1147 }, "end": { "local": "2080-10-22T17:18:41+08:00", "utc": "2080-10-22T09:18:41Z", "ms": 3496814320595.1914 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-10-21", "window": { "start": { "local": "2080-10-21T11:23:20+08:00", "utc": "2080-10-21T03:23:20Z", "ms": 3496706599667.7305 }, "end": { "local": "2080-10-21T12:11:20+08:00", "utc": "2080-10-21T04:11:20Z", "ms": 3496709479667.7305 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-10-22", "window": { "start": { "local": "2080-10-22T11:23:11+08:00", "utc": "2080-10-22T03:23:11Z", "ms": 3496792990720.835 }, "end": { "local": "2080-10-22T12:11:11+08:00", "utc": "2080-10-22T04:11:11Z", "ms": 3496795870720.835 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 14:47 on Mon 21 Oct to 17:19 on Tue 22 Oct.", "fact": "2080-10-21T06:47:06Z → 2080-10-22T09:18:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:23–12:11 on the 21st, 11:23–12:11 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 21st and 48 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 9346 s" }, { "step": "ruling", "text": "Mahānavamī, Fuzhou, 2080: Tuesday 22 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahanavami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Mahanavami (purvaviddha) (In Bengal it is observed as paraviddha covering one muhurta from sunrise)." } ], "not_evaluated": "The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.", "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-22", "confidence": "determinate" } ], "quote": "In Fuzhou, Mahānavamī 2080 falls on Tuesday 22 October. Navamī runs from 14:47 on Mon 21 Oct to 17:19 on Tue 22 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-10-24", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30157, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-10-23T19:42:23+08:00", "utc": "2080-10-23T11:42:23Z", "ms": 3496909343016.297 }, "end": { "local": "2080-10-24T21:45:18+08:00", "utc": "2080-10-24T13:45:18Z", "ms": 3497003118031.2085 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-23T19:42:23+08:00", "utc": "2080-10-23T11:42:23Z", "ms": 3496909343016.297 }, "end": { "local": "2080-10-24T21:45:18+08:00", "utc": "2080-10-24T13:45:18Z", "ms": 3497003118031.2085 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-10-24", "window": { "start": { "local": "2080-10-24T06:07:20+08:00", "utc": "2080-10-23T22:07:20Z", "ms": 3496946839900.3677 }, "end": { "local": "2080-10-24T06:07:20+08:00", "utc": "2080-10-23T22:07:20Z", "ms": 3496946839900.3677 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-10-25", "window": { "start": { "local": "2080-10-25T06:07:55+08:00", "utc": "2080-10-24T22:07:55Z", "ms": 3497033274886.618 }, "end": { "local": "2080-10-25T06:07:55+08:00", "utc": "2080-10-24T22:07:55Z", "ms": 3497033274886.618 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:42 on Wed 23 Oct to 21:45 on Thu 24 Oct.", "fact": "2080-10-23T11:42:23Z → 2080-10-24T13:45:18Z" }, { "step": "kaala", "text": "Sunrise is at 06:07 on the 24th and 06:08 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 30157 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Fuzhou, 2080: Thursday 24 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Pāśāṅkuśā Ekādaśī 2080 falls on Thursday 24 October. Ekādaśī runs from 19:42 on Wed 23 Oct to 21:45 on Thu 24 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-10-24", "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/2080/pradosha-vrata?on=2080-10-26", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15019, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-10-25T23:17:42+08:00", "utc": "2080-10-25T15:17:42Z", "ms": 3497095062370.109 }, "end": { "local": "2080-10-27T00:13:53+08:00", "utc": "2080-10-26T16:13:53Z", "ms": 3497184833394.261 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "2080-10-25T23:17:42+08:00", "utc": "2080-10-25T15:17:42Z", "ms": 3497095062370.109 }, "end": { "local": "2080-10-27T00:13:53+08:00", "utc": "2080-10-26T16:13:53Z", "ms": 3497184833394.261 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-10-25", "window": { "start": { "local": "2080-10-25T17:25:41+08:00", "utc": "2080-10-25T09:25:41Z", "ms": 3497073941069.16 }, "end": { "local": "2080-10-25T19:07:24+08:00", "utc": "2080-10-25T11:07:24Z", "ms": 3497080043634.75 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "2080-10-26", "window": { "start": { "local": "2080-10-26T17:24:53+08:00", "utc": "2080-10-26T09:24:53Z", "ms": 3497160293316.8833 }, "end": { "local": "2080-10-26T19:06:47+08:00", "utc": "2080-10-26T11:06:47Z", "ms": 3497166407031.5635 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:18 on Fri 25 Oct to 00:14 on Sun 27 Oct.", "fact": "2080-10-25T15:17:42Z → 2080-10-26T16:13:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:26–19:07 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 15019 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Saturday 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": "2080-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Saturday 26 October. Trayodaśī runs from 23:18 on Fri 25 Oct to 00:14 on Sun 27 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-10-26", "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/2080/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-31", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 4429, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-10-31T20:27:01+08:00", "utc": "2080-10-31T12:27:01Z", "ms": 3497603221467.1826 }, "end": { "local": "2080-11-01T18:33:32+08:00", "utc": "2080-11-01T10:33:32Z", "ms": 3497682812194.087 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-10-31T20:27:01+08:00", "utc": "2080-10-31T12:27:01Z", "ms": 3497603221467.1826 }, "end": { "local": "2080-11-01T18:33:32+08:00", "utc": "2080-11-01T10:33:32Z", "ms": 3497682812194.087 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-10-31", "window": { "start": { "local": "2080-10-31T19:13:13+08:00", "utc": "2080-10-31T11:13:13Z", "ms": 3497598792684.755 }, "end": { "local": "2080-10-31T19:13:13+08:00", "utc": "2080-10-31T11:13:13Z", "ms": 3497598792684.755 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-11-01", "window": { "start": { "local": "2080-11-01T20:11:42+08:00", "utc": "2080-11-01T12:11:42Z", "ms": 3497688702222.3325 }, "end": { "local": "2080-11-01T20:11:42+08:00", "utc": "2080-11-01T12:11:42Z", "ms": 3497688702222.3325 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:27 on Thu 31 Oct to 18:34 on Fri 1 Nov.", "fact": "2080-10-31T12:27:01Z → 2080-11-01T10:33:32Z" }, { "step": "kaala", "text": "Moonrise is at 19:13 on the 31st and 20:12 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 31st and is not on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither moonrise qualifies. The day the tithi falls on is taken.", "fact": "priority: purvaviddha → tithi-day · margin 4429 s" }, { "step": "ruling", "text": "Karaka Caturthī, Fuzhou, 2080: Thursday 31 October.", "fact": "confidence: boundary (absent-unstated)" } ], "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": "2080-10-31", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-31", "confidence": "boundary" } ], "quote": "In Fuzhou, Karaka Caturthī (Karwa Chauth) 2080 falls on Thursday 31 October. Caturthī runs from 20:27 on Thu 31 Oct to 18:34 on Fri 1 Nov, and is current at moonrise on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-10-31", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-10-31", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 4429, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-10-31T20:27:01+08:00", "utc": "2080-10-31T12:27:01Z", "ms": 3497603221467.1826 }, "end": { "local": "2080-11-01T18:33:32+08:00", "utc": "2080-11-01T10:33:32Z", "ms": 3497682812194.087 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-10-31T20:27:01+08:00", "utc": "2080-10-31T12:27:01Z", "ms": 3497603221467.1826 }, "end": { "local": "2080-11-01T18:33:32+08:00", "utc": "2080-11-01T10:33:32Z", "ms": 3497682812194.087 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-10-31", "window": { "start": { "local": "2080-10-31T19:13:13+08:00", "utc": "2080-10-31T11:13:13Z", "ms": 3497598792684.755 }, "end": { "local": "2080-10-31T19:13:13+08:00", "utc": "2080-10-31T11:13:13Z", "ms": 3497598792684.755 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-11-01", "window": { "start": { "local": "2080-11-01T20:11:42+08:00", "utc": "2080-11-01T12:11:42Z", "ms": 3497688702222.3325 }, "end": { "local": "2080-11-01T20:11:42+08:00", "utc": "2080-11-01T12:11:42Z", "ms": 3497688702222.3325 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 20:27 on Thu 31 Oct to 18:34 on Fri 1 Nov.", "fact": "2080-10-31T12:27:01Z → 2080-11-01T10:33:32Z" }, { "step": "kaala", "text": "Moonrise is at 19:13 on the 31st and 20:12 on the 1st.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 31st and is not on the 1st.", "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 4429 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Thursday 31 October.", "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": "2080-10-31", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-10-31", "confidence": "boundary" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Thursday 31 October. Caturthī runs from 20:27 on Thu 31 Oct to 18:34 on Fri 1 Nov, and is current at moonrise on neither day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-10-31", "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/2080/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38248, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2080-11-04T12:15:08+08:00", "utc": "2080-11-04T04:15:08Z", "ms": 3497919307780.0825 }, "end": { "local": "2080-11-05T10:09:04+08:00", "utc": "2080-11-05T02:09:04Z", "ms": 3497998144296.532 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-04T12:15:08+08:00", "utc": "2080-11-04T04:15:08Z", "ms": 3497919307780.0825 }, "end": { "local": "2080-11-05T10:09:04+08:00", "utc": "2080-11-05T02:09:04Z", "ms": 3497998144296.532 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-11-03", "window": { "start": { "local": "2080-11-03T22:24:02+08:00", "utc": "2080-11-03T14:24:02Z", "ms": 3497869441813.364 }, "end": { "local": "2080-11-03T22:24:02+08:00", "utc": "2080-11-03T14:24:02Z", "ms": 3497869441813.364 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-11-04", "window": { "start": { "local": "2080-11-04T23:31:37+08:00", "utc": "2080-11-04T15:31:37Z", "ms": 3497959896541.964 }, "end": { "local": "2080-11-04T23:31:37+08:00", "utc": "2080-11-04T15:31:37Z", "ms": 3497959896541.964 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:15 on Mon 4 Nov to 10:09 on Tue 5 Nov.", "fact": "2080-11-04T04:15:08Z → 2080-11-05T02:09:04Z" }, { "step": "kaala", "text": "Moonrise is at 22:24 on the 3rd and 23:32 on the 4th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is not on the 3rd and is on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 38248 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Fuzhou, 2080: Monday 4 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-04", "confidence": "determinate" } ], "quote": "In Fuzhou, Ahoyī Aṣṭamī 2080 falls on Monday 4 November. Aṣṭamī runs from 12:15 on Mon 4 Nov to 10:09 on Tue 5 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-11-07", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-07", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 257, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-11-07T06:11:53+08:00", "utc": "2080-11-06T22:11:53Z", "ms": 3498156713044.38 }, "end": { "local": "2080-11-08T04:24:37+08:00", "utc": "2080-11-07T20:24:37Z", "ms": 3498236677304.1416 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-07T06:11:53+08:00", "utc": "2080-11-06T22:11:53Z", "ms": 3498156713044.38 }, "end": { "local": "2080-11-08T04:24:37+08:00", "utc": "2080-11-07T20:24:37Z", "ms": 3498236677304.1416 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-11-07", "window": { "start": { "local": "2080-11-07T06:16:10+08:00", "utc": "2080-11-06T22:16:10Z", "ms": 3498156970127.445 }, "end": { "local": "2080-11-07T06:16:10+08:00", "utc": "2080-11-06T22:16:10Z", "ms": 3498156970127.445 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-11-08", "window": { "start": { "local": "2080-11-08T06:16:51+08:00", "utc": "2080-11-07T22:16:51Z", "ms": 3498243411235.869 }, "end": { "local": "2080-11-08T06:16:51+08:00", "utc": "2080-11-07T22:16:51Z", "ms": 3498243411235.869 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:12 on Thu 7 Nov to 04:25 on Fri 8 Nov.", "fact": "2080-11-06T22:11:53Z → 2080-11-07T20:24:37Z" }, { "step": "kaala", "text": "Sunrise is at 06:16 on the 7th and 06:17 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 257 s < 300 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Fuzhou, 2080: Thursday 7 November.", "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": "2080-11-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-07", "confidence": "boundary" } ], "quote": "In Fuzhou, Ramā Ekādaśī 2080 falls on Thursday 7 November. Ekādaśī runs from 06:12 on Thu 7 Nov to 04:25 on Fri 8 Nov and is current at sunrise that day. It is 4 min 17 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-11-07", "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/2080/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28056, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2080-11-08T04:24:37+08:00", "utc": "2080-11-07T20:24:37Z", "ms": 3498236677304.1416 }, "end": { "local": "2080-11-09T02:48:02+08:00", "utc": "2080-11-08T18:48:02Z", "ms": 3498317281687.1904 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-08T04:24:37+08:00", "utc": "2080-11-07T20:24:37Z", "ms": 3498236677304.1416 }, "end": { "local": "2080-11-09T02:48:02+08:00", "utc": "2080-11-08T18:48:02Z", "ms": 3498317281687.1904 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-11-07", "window": { "start": { "local": "2080-11-07T17:16:48+08:00", "utc": "2080-11-07T09:16:48Z", "ms": 3498196608214.157 }, "end": { "local": "2080-11-07T19:00:49+08:00", "utc": "2080-11-07T11:00:49Z", "ms": 3498202848617.0522 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "2080-11-08", "window": { "start": { "local": "2080-11-08T17:16:16+08:00", "utc": "2080-11-08T09:16:16Z", "ms": 3498282975901.5254 }, "end": { "local": "2080-11-08T19:00:26+08:00", "utc": "2080-11-08T11:00:26Z", "ms": 3498289226144.3887 } }, "covered_min": 104, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 04:25 on Fri 8 Nov to 02:48 on Sat 9 Nov.", "fact": "2080-11-07T20:24:37Z → 2080-11-08T18:48:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:17–19:01 on the 7th, 17:16–19:00 on the 8th.", "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 104 minutes on the 7th and 104 of 104 on the 8th.", "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 28056 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Fuzhou, 2080: Friday 8 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govatsa-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Govatsa Dvādaśī (Vasu Baras) 2080 falls on Friday 8 November. Dvādaśī runs from 04:25 on Fri 8 Nov to 02:48 on Sat 9 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23114, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-11-09T02:48:02+08:00", "utc": "2080-11-08T18:48:02Z", "ms": 3498317281687.1904 }, "end": { "local": "2080-11-10T01:25:19+08:00", "utc": "2080-11-09T17:25:19Z", "ms": 3498398718656.332 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-09T02:48:02+08:00", "utc": "2080-11-08T18:48:02Z", "ms": 3498317281687.1904 }, "end": { "local": "2080-11-10T01:25:19+08:00", "utc": "2080-11-09T17:25:19Z", "ms": 3498398718656.332 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-11-08", "window": { "start": { "local": "2080-11-08T17:16:16+08:00", "utc": "2080-11-08T09:16:16Z", "ms": 3498282975901.5254 }, "end": { "local": "2080-11-08T19:00:26+08:00", "utc": "2080-11-08T11:00:26Z", "ms": 3498289226144.3887 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "2080-11-09", "window": { "start": { "local": "2080-11-09T17:15:45+08:00", "utc": "2080-11-09T09:15:45Z", "ms": 3498369344940.24 }, "end": { "local": "2080-11-09T19:00:05+08:00", "utc": "2080-11-09T11:00:05Z", "ms": 3498375604890.8623 } }, "covered_min": 104, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:48 on Sat 9 Nov to 01:25 on Sun 10 Nov.", "fact": "2080-11-08T18:48:02Z → 2080-11-09T17:25:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:16–19:00 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. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23114 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Fuzhou, 2080: Saturday 9 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dipadana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 13 Yama dipadana (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Yama Dīpadāna 2080 falls on Saturday 9 November. Trayodaśī runs from 02:48 on Sat 9 Nov to 01:25 on Sun 10 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/pradosha-vrata?on=2080-11-09", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23114, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-11-09T02:48:02+08:00", "utc": "2080-11-08T18:48:02Z", "ms": 3498317281687.1904 }, "end": { "local": "2080-11-10T01:25:19+08:00", "utc": "2080-11-09T17:25:19Z", "ms": 3498398718656.332 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-09T02:48:02+08:00", "utc": "2080-11-08T18:48:02Z", "ms": 3498317281687.1904 }, "end": { "local": "2080-11-10T01:25:19+08:00", "utc": "2080-11-09T17:25:19Z", "ms": 3498398718656.332 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-11-08", "window": { "start": { "local": "2080-11-08T17:16:16+08:00", "utc": "2080-11-08T09:16:16Z", "ms": 3498282975901.5254 }, "end": { "local": "2080-11-08T19:00:26+08:00", "utc": "2080-11-08T11:00:26Z", "ms": 3498289226144.3887 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "2080-11-09", "window": { "start": { "local": "2080-11-09T17:15:45+08:00", "utc": "2080-11-09T09:15:45Z", "ms": 3498369344940.24 }, "end": { "local": "2080-11-09T19:00:05+08:00", "utc": "2080-11-09T11:00:05Z", "ms": 3498375604890.8623 } }, "covered_min": 104, "window_min": 104, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:48 on Sat 9 Nov to 01:25 on Sun 10 Nov.", "fact": "2080-11-08T18:48:02Z → 2080-11-09T17:25:19Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:16–19:00 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 23114 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Saturday 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": "2080-11-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Saturday 9 November. Trayodaśī runs from 02:48 on Sat 9 Nov to 01:25 on Sun 10 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-11-09", "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/2080/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11316, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-11-10T01:25:19+08:00", "utc": "2080-11-09T17:25:19Z", "ms": 3498398718656.332 }, "end": { "local": "2080-11-11T00:20:31+08:00", "utc": "2080-11-10T16:20:31Z", "ms": 3498481230657.056 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-10T01:25:19+08:00", "utc": "2080-11-09T17:25:19Z", "ms": 3498398718656.332 }, "end": { "local": "2080-11-11T00:20:31+08:00", "utc": "2080-11-10T16:20:31Z", "ms": 3498481230657.056 } }, "kaala": "arunodaya", "days": [ { "local_date": "2080-11-10", "window": { "start": { "local": "2080-11-10T04:33:55+08:00", "utc": "2080-11-09T20:33:55Z", "ms": 3498410034619.284 }, "end": { "local": "2080-11-10T06:18:15+08:00", "utc": "2080-11-09T22:18:15Z", "ms": 3498416294569.9062 } }, "covered_min": 104, "window_min": 104, "qualifies": true }, { "local_date": "2080-11-11", "window": { "start": { "local": "2080-11-11T04:34:27+08:00", "utc": "2080-11-10T20:34:27Z", "ms": 3498496467234.6284 }, "end": { "local": "2080-11-11T06:18:57+08:00", "utc": "2080-11-10T22:18:57Z", "ms": 3498502736755.806 } }, "covered_min": 0, "window_min": 104, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:25 on Sun 10 Nov to 00:21 on Mon 11 Nov.", "fact": "2080-11-09T17:25:19Z → 2080-11-10T16:20:31Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:34–06:18 on the 10th, 04:34–06:19 on the 11th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 104 of 104 minutes on the 10th and 0 of 104 on the 11th.", "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 11316 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Fuzhou, 2080: Sunday 10 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-10", "confidence": "determinate" } ], "quote": "In Fuzhou, Naraka Caturdaśī (Choti Diwali) 2080 falls on Sunday 10 November. Caturdaśī runs from 01:25 on Sun 10 Nov to 00:21 on Mon 11 Nov and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/shivaratri?on=2080-11-10", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 565, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-11-10T01:25:19+08:00", "utc": "2080-11-09T17:25:19Z", "ms": 3498398718656.332 }, "end": { "local": "2080-11-11T00:20:31+08:00", "utc": "2080-11-10T16:20:31Z", "ms": 3498481230657.056 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-10T01:25:19+08:00", "utc": "2080-11-09T17:25:19Z", "ms": 3498398718656.332 }, "end": { "local": "2080-11-11T00:20:31+08:00", "utc": "2080-11-10T16:20:31Z", "ms": 3498481230657.056 } }, "kaala": "nishita", "days": [ { "local_date": "2080-11-09", "window": { "start": { "local": "2080-11-09T23:23:00+08:00", "utc": "2080-11-09T15:23:00Z", "ms": 3498391379755.073 }, "end": { "local": "2080-11-10T00:11:00+08:00", "utc": "2080-11-09T16:11:00Z", "ms": 3498394259755.073 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-11-10", "window": { "start": { "local": "2080-11-10T23:23:06+08:00", "utc": "2080-11-10T15:23:06Z", "ms": 3498477786051.3896 }, "end": { "local": "2080-11-11T00:11:06+08:00", "utc": "2080-11-10T16:11:06Z", "ms": 3498480666051.3896 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 01:25 on Sun 10 Nov to 00:21 on Mon 11 Nov.", "fact": "2080-11-09T17:25:19Z → 2080-11-10T16:20:31Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:23–00:11 on the 9th, 23:23–00:11 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 565 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Sunday 10 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": "2080-11-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-10", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Sunday 10 November. Caturdaśī runs from 01:25 on Sun 10 Nov to 00:21 on Mon 11 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-11-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16734, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2080-11-11T00:20:31+08:00", "utc": "2080-11-10T16:20:31Z", "ms": 3498481230657.056 }, "end": { "local": "2080-11-11T23:38:20+08:00", "utc": "2080-11-11T15:38:20Z", "ms": 3498565100390.5107 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-11T00:20:31+08:00", "utc": "2080-11-10T16:20:31Z", "ms": 3498481230657.056 }, "end": { "local": "2080-11-11T23:38:20+08:00", "utc": "2080-11-11T15:38:20Z", "ms": 3498565100390.5107 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-11-10", "window": { "start": { "local": "2080-11-10T17:15:15+08:00", "utc": "2080-11-10T09:15:15Z", "ms": 3498455715346.9727 }, "end": { "local": "2080-11-10T18:59:45+08:00", "utc": "2080-11-10T10:59:45Z", "ms": 3498461984868.1504 } }, "covered_min": 0, "window_min": 104, "qualifies": false }, { "local_date": "2080-11-11", "window": { "start": { "local": "2080-11-11T17:14:47+08:00", "utc": "2080-11-11T09:14:47Z", "ms": 3498542087137.1484 }, "end": { "local": "2080-11-11T18:59:26+08:00", "utc": "2080-11-11T10:59:26Z", "ms": 3498548366086.639 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 00:21 on Mon 11 Nov to 23:38 on Mon 11 Nov.", "fact": "2080-11-10T16:20:31Z → 2080-11-11T15:38:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:15–19:00 on the 10th, 17:15–18:59 on the 11th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 0 of 104 minutes on the 10th and 105 of 105 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 16734 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Fuzhou, 2080: Monday 11 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "diwali-lakshmi-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Lakṣmī Pūjā (Diwali) 2080 falls on Monday 11 November. Amāvasyā runs from 00:21 on Mon 11 Nov to 23:38 on Mon 11 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 565, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "2080-11-11T00:20:31+08:00", "utc": "2080-11-10T16:20:31Z", "ms": 3498481230657.056 }, "end": { "local": "2080-11-11T23:38:20+08:00", "utc": "2080-11-11T15:38:20Z", "ms": 3498565100390.5107 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-11T00:20:31+08:00", "utc": "2080-11-10T16:20:31Z", "ms": 3498481230657.056 }, "end": { "local": "2080-11-11T23:38:20+08:00", "utc": "2080-11-11T15:38:20Z", "ms": 3498565100390.5107 } }, "kaala": "nishita", "days": [ { "local_date": "2080-11-10", "window": { "start": { "local": "2080-11-10T23:23:06+08:00", "utc": "2080-11-10T15:23:06Z", "ms": 3498477786051.3896 }, "end": { "local": "2080-11-11T00:11:06+08:00", "utc": "2080-11-10T16:11:06Z", "ms": 3498480666051.3896 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-11-11", "window": { "start": { "local": "2080-11-11T23:23:13+08:00", "utc": "2080-11-11T15:23:13Z", "ms": 3498564193197.7393 }, "end": { "local": "2080-11-12T00:11:13+08:00", "utc": "2080-11-11T16:11:13Z", "ms": 3498567073197.7393 } }, "covered_min": 15, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 00:21 on Mon 11 Nov to 23:38 on Mon 11 Nov.", "fact": "2080-11-10T16:20:31Z → 2080-11-11T15:38:20Z" }, { "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": "Amāvasyā must be present during niśītha. It covers 0 of 48 minutes on the 10th and 15 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: unstated → only-day · margin 565 s" }, { "step": "ruling", "text": "Kālī Pūjā, Fuzhou, 2080: Monday 11 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-11", "confidence": "determinate" } ], "quote": "In Fuzhou, Kālī Pūjā 2080 falls on Monday 11 November. Amāvasyā runs from 00:21 on Mon 11 Nov to 23:38 on Mon 11 Nov and covers 15 of 48 minutes of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40365, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2080-11-11T23:38:20+08:00", "utc": "2080-11-11T15:38:20Z", "ms": 3498565100390.5107 }, "end": { "local": "2080-11-12T23:23:45+08:00", "utc": "2080-11-12T15:23:45Z", "ms": 3498650624759.299 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-11T23:38:20+08:00", "utc": "2080-11-11T15:38:20Z", "ms": 3498565100390.5107 }, "end": { "local": "2080-11-12T23:23:45+08:00", "utc": "2080-11-12T15:23:45Z", "ms": 3498650624759.299 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-11-11", "window": { "start": { "local": "2080-11-11T11:22:52+08:00", "utc": "2080-11-11T03:22:52Z", "ms": 3498520971946.4775 }, "end": { "local": "2080-11-11T12:10:52+08:00", "utc": "2080-11-11T04:10:52Z", "ms": 3498523851946.4775 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-11-12", "window": { "start": { "local": "2080-11-12T11:23:00+08:00", "utc": "2080-11-12T03:23:00Z", "ms": 3498607379791.79 }, "end": { "local": "2080-11-12T12:11:00+08:00", "utc": "2080-11-12T04:11:00Z", "ms": 3498610259791.79 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 23:38 on Mon 11 Nov to 23:24 on Tue 12 Nov.", "fact": "2080-11-11T15:38:20Z → 2080-11-12T15:23:45Z" }, { "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": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 11th and 48 of 48 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 40365 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Fuzhou, 2080: Tuesday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govardhana-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Govardhana Pūjā 2080 falls on Tuesday 12 November. Pratipadā runs from 23:38 on Mon 11 Nov to 23:24 on Tue 12 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15876, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2080-11-11T23:38:20+08:00", "utc": "2080-11-11T15:38:20Z", "ms": 3498565100390.5107 }, "end": { "local": "2080-11-12T23:23:45+08:00", "utc": "2080-11-12T15:23:45Z", "ms": 3498650624759.299 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-11T23:38:20+08:00", "utc": "2080-11-11T15:38:20Z", "ms": 3498565100390.5107 }, "end": { "local": "2080-11-12T23:23:45+08:00", "utc": "2080-11-12T15:23:45Z", "ms": 3498650624759.299 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-11-11", "window": { "start": { "local": "2080-11-11T17:14:47+08:00", "utc": "2080-11-11T09:14:47Z", "ms": 3498542087137.1484 }, "end": { "local": "2080-11-11T18:59:26+08:00", "utc": "2080-11-11T10:59:26Z", "ms": 3498548366086.639 } }, "covered_min": 0, "window_min": 105, "qualifies": false }, { "local_date": "2080-11-12", "window": { "start": { "local": "2080-11-12T17:14:20+08:00", "utc": "2080-11-12T09:14:20Z", "ms": 3498628460325.2495 }, "end": { "local": "2080-11-12T18:59:09+08:00", "utc": "2080-11-12T10:59:09Z", "ms": 3498634748555.7236 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 23:38 on Mon 11 Nov to 23:24 on Tue 12 Nov.", "fact": "2080-11-11T15:38:20Z → 2080-11-12T15:23:45Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:15–18:59 on the 11th, 17:14–18:59 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 0 of 105 minutes on the 11th and 105 of 105 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 15876 s" }, { "step": "ruling", "text": "Bali Pūjā, Fuzhou, 2080: Tuesday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Bali Pūjā 2080 falls on Tuesday 12 November. Pratipadā runs from 23:38 on Mon 11 Nov to 23:24 on Tue 12 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24079, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "2080-11-11T23:38:20+08:00", "utc": "2080-11-11T15:38:20Z", "ms": 3498565100390.5107 }, "end": { "local": "2080-11-12T23:23:45+08:00", "utc": "2080-11-12T15:23:45Z", "ms": 3498650624759.299 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-11T23:38:20+08:00", "utc": "2080-11-11T15:38:20Z", "ms": 3498565100390.5107 }, "end": { "local": "2080-11-12T23:23:45+08:00", "utc": "2080-11-12T15:23:45Z", "ms": 3498650624759.299 } }, "kaala": "purvahna", "days": [ { "local_date": "2080-11-12", "window": { "start": { "local": "2080-11-12T06:19:39+08:00", "utc": "2080-11-11T22:19:39Z", "ms": 3498589179258.33 }, "end": { "local": "2080-11-12T09:57:53+08:00", "utc": "2080-11-12T01:57:53Z", "ms": 3498602272947.303 } }, "covered_min": 218, "window_min": 218, "qualifies": true }, { "local_date": "2080-11-13", "window": { "start": { "local": "2080-11-13T06:20:22+08:00", "utc": "2080-11-12T22:20:22Z", "ms": 3498675622053.805 }, "end": { "local": "2080-11-13T09:58:13+08:00", "utc": "2080-11-13T01:58:13Z", "ms": 3498688693010.897 } }, "covered_min": 0, "window_min": 218, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 23:38 on Mon 11 Nov to 23:24 on Tue 12 Nov.", "fact": "2080-11-11T15:38:20Z → 2080-11-12T15:23:45Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:20–09:58 on the 12th, 06:20–09:58 on the 13th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 218 of 218 minutes on the 12th and 0 of 218 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24079 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Fuzhou, 2080: Tuesday 12 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-12", "confidence": "determinate" } ], "quote": "In Fuzhou, Dyūta Pratipad 2080 falls on Tuesday 12 November. Pratipadā runs from 23:38 on Mon 11 Nov to 23:24 on Tue 12 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40365, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "2080-11-12T23:23:45+08:00", "utc": "2080-11-12T15:23:45Z", "ms": 3498650624759.299 }, "end": { "local": "2080-11-13T23:41:12+08:00", "utc": "2080-11-13T15:41:12Z", "ms": 3498738071796.183 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-12T23:23:45+08:00", "utc": "2080-11-12T15:23:45Z", "ms": 3498650624759.299 }, "end": { "local": "2080-11-13T23:41:12+08:00", "utc": "2080-11-13T15:41:12Z", "ms": 3498738071796.183 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-11-12", "window": { "start": { "local": "2080-11-12T11:23:00+08:00", "utc": "2080-11-12T03:23:00Z", "ms": 3498607379791.79 }, "end": { "local": "2080-11-12T12:11:00+08:00", "utc": "2080-11-12T04:11:00Z", "ms": 3498610259791.79 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-11-13", "window": { "start": { "local": "2080-11-13T11:23:08+08:00", "utc": "2080-11-13T03:23:08Z", "ms": 3498693788489.443 }, "end": { "local": "2080-11-13T12:11:08+08:00", "utc": "2080-11-13T04:11:08Z", "ms": 3498696668489.443 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 23:24 on Tue 12 Nov to 23:41 on Wed 13 Nov.", "fact": "2080-11-12T15:23:45Z → 2080-11-13T15:41:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:23–12:11 on the 12th, 11:23–12:11 on the 13th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 40365 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Fuzhou, 2080: Wednesday 13 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dvitiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Bhratrdvitiya, Yamadvitiya (madhyahna, purvaviddha), Masyadhara (Dwat) puja (Bihar)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-13", "confidence": "determinate" } ], "quote": "In Fuzhou, Yama Dvitīyā (Bhai Dooj) 2080 falls on Wednesday 13 November. Dvitīyā runs from 23:24 on Tue 12 Nov to 23:41 on Wed 13 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33722, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-11-15T00:33:42+08:00", "utc": "2080-11-14T16:33:42Z", "ms": 3498827621747.971 }, "end": { "local": "2080-11-16T02:01:38+08:00", "utc": "2080-11-15T18:01:38Z", "ms": 3498919297734.508 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-15T00:33:42+08:00", "utc": "2080-11-14T16:33:42Z", "ms": 3498827621747.971 }, "end": { "local": "2080-11-16T02:01:38+08:00", "utc": "2080-11-15T18:01:38Z", "ms": 3498919297734.508 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-11-15", "window": { "start": { "local": "2080-11-15T11:23:28+08:00", "utc": "2080-11-15T03:23:28Z", "ms": 3498866608418.45 }, "end": { "local": "2080-11-15T12:11:28+08:00", "utc": "2080-11-15T04:11:28Z", "ms": 3498869488418.45 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-11-16", "window": { "start": { "local": "2080-11-16T11:23:40+08:00", "utc": "2080-11-16T03:23:40Z", "ms": 3498953019636.7607 }, "end": { "local": "2080-11-16T12:11:40+08:00", "utc": "2080-11-16T04:11:40Z", "ms": 3498955899636.7607 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:34 on Fri 15 Nov to 02:02 on Sat 16 Nov.", "fact": "2080-11-14T16:33:42Z → 2080-11-15T18:01:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:23–12:11 on the 15th, 11:24–12:12 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33722 s" }, { "step": "ruling", "text": "Nāga Caturthī, Fuzhou, 2080: Friday 15 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Nāga Caturthī 2080 falls on Friday 15 November. Caturthī runs from 00:34 on Fri 15 Nov to 02:02 on Sat 16 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/vinayaka-chaturthi?on=2080-11-15", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33722, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-11-15T00:33:42+08:00", "utc": "2080-11-14T16:33:42Z", "ms": 3498827621747.971 }, "end": { "local": "2080-11-16T02:01:38+08:00", "utc": "2080-11-15T18:01:38Z", "ms": 3498919297734.508 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-15T00:33:42+08:00", "utc": "2080-11-14T16:33:42Z", "ms": 3498827621747.971 }, "end": { "local": "2080-11-16T02:01:38+08:00", "utc": "2080-11-15T18:01:38Z", "ms": 3498919297734.508 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-11-15", "window": { "start": { "local": "2080-11-15T11:23:28+08:00", "utc": "2080-11-15T03:23:28Z", "ms": 3498866608418.45 }, "end": { "local": "2080-11-15T12:11:28+08:00", "utc": "2080-11-15T04:11:28Z", "ms": 3498869488418.45 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-11-16", "window": { "start": { "local": "2080-11-16T11:23:40+08:00", "utc": "2080-11-16T03:23:40Z", "ms": 3498953019636.7607 }, "end": { "local": "2080-11-16T12:11:40+08:00", "utc": "2080-11-16T04:11:40Z", "ms": 3498955899636.7607 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 00:34 on Fri 15 Nov to 02:02 on Sat 16 Nov.", "fact": "2080-11-14T16:33:42Z → 2080-11-15T18:01:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:23–12:11 on the 15th, 11:24–12:12 on the 16th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 33722 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2080: Friday 15 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2080 falls on Friday 15 November. Caturthī runs from 00:34 on Fri 15 Nov to 02:02 on Sat 16 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-11-15", "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/2080/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17885, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2080-11-17T04:01:39+08:00", "utc": "2080-11-16T20:01:39Z", "ms": 3499012899042.16 }, "end": { "local": "2080-11-18T06:25:59+08:00", "utc": "2080-11-17T22:25:59Z", "ms": 3499107959370.3696 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-17T04:01:39+08:00", "utc": "2080-11-16T20:01:39Z", "ms": 3499012899042.16 }, "end": { "local": "2080-11-18T06:25:59+08:00", "utc": "2080-11-17T22:25:59Z", "ms": 3499107959370.3696 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-11-17", "window": { "start": { "local": "2080-11-17T11:23:52+08:00", "utc": "2080-11-17T03:23:52Z", "ms": 3499039431681.4233 }, "end": { "local": "2080-11-17T12:11:52+08:00", "utc": "2080-11-17T04:11:52Z", "ms": 3499042311681.4233 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-11-18", "window": { "start": { "local": "2080-11-18T11:24:05+08:00", "utc": "2080-11-18T03:24:05Z", "ms": 3499125844544.6553 }, "end": { "local": "2080-11-18T12:12:05+08:00", "utc": "2080-11-18T04:12:05Z", "ms": 3499128724544.6553 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 04:02 on Sun 17 Nov to 06:26 on Mon 18 Nov.", "fact": "2080-11-16T20:01:39Z → 2080-11-17T22:25:59Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 17th, 11:24–12:12 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 17885 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Fuzhou, 2080: Sunday 17 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "surya-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar)." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Sūrya Ṣaṣṭhī (Chhath) 2080 falls on Sunday 17 November. Ṣaṣṭhī runs from 04:02 on Sun 17 Nov to 06:26 on Mon 18 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-19", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 719, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "2080-11-19T09:02:37+08:00", "utc": "2080-11-19T01:02:37Z", "ms": 3499203756671.2603 }, "end": { "local": "2080-11-20T11:36:31+08:00", "utc": "2080-11-20T03:36:31Z", "ms": 3499299391384.434 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-19T09:02:37+08:00", "utc": "2080-11-19T01:02:37Z", "ms": 3499203756671.2603 }, "end": { "local": "2080-11-20T11:36:31+08:00", "utc": "2080-11-20T03:36:31Z", "ms": 3499299391384.434 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-11-19", "window": { "start": { "local": "2080-11-19T11:24:18+08:00", "utc": "2080-11-19T03:24:18Z", "ms": 3499212258218.116 }, "end": { "local": "2080-11-19T12:12:18+08:00", "utc": "2080-11-19T04:12:18Z", "ms": 3499215138218.116 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-11-20", "window": { "start": { "local": "2080-11-20T11:24:33+08:00", "utc": "2080-11-20T03:24:33Z", "ms": 3499298672692.8784 }, "end": { "local": "2080-11-20T12:12:33+08:00", "utc": "2080-11-20T04:12:33Z", "ms": 3499301552692.8784 } }, "covered_min": 12, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 09:03 on Tue 19 Nov to 11:37 on Wed 20 Nov.", "fact": "2080-11-19T01:02:37Z → 2080-11-20T03:36:31Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 19th, 11:25–12:13 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 12 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 719 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Fuzhou, 2080: Tuesday 19 November.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "gopashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Gopastami, Gosthastami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-19", "confidence": "boundary" } ], "quote": "In Fuzhou, Gopāṣṭamī 2080 falls on Tuesday 19 November. Aṣṭamī runs from 09:03 on Tue 19 Nov to 11:37 on Wed 20 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 12 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/2080/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/2080/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 719, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2080-11-20T11:36:31+08:00", "utc": "2080-11-20T03:36:31Z", "ms": 3499299391384.434 }, "end": { "local": "2080-11-21T13:52:03+08:00", "utc": "2080-11-21T05:52:03Z", "ms": 3499393923287.1 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-20T11:36:31+08:00", "utc": "2080-11-20T03:36:31Z", "ms": 3499299391384.434 }, "end": { "local": "2080-11-21T13:52:03+08:00", "utc": "2080-11-21T05:52:03Z", "ms": 3499393923287.1 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-11-20", "window": { "start": { "local": "2080-11-20T11:24:33+08:00", "utc": "2080-11-20T03:24:33Z", "ms": 3499298672692.8784 }, "end": { "local": "2080-11-20T12:12:33+08:00", "utc": "2080-11-20T04:12:33Z", "ms": 3499301552692.8784 } }, "covered_min": 36, "window_min": 48, "qualifies": true }, { "local_date": "2080-11-21", "window": { "start": { "local": "2080-11-21T11:24:48+08:00", "utc": "2080-11-21T03:24:48Z", "ms": 3499385087959.422 }, "end": { "local": "2080-11-21T12:12:48+08:00", "utc": "2080-11-21T04:12:48Z", "ms": 3499387967959.422 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Navamī runs from 11:37 on Wed 20 Nov to 13:52 on Thu 21 Nov.", "fact": "2080-11-20T03:36:31Z → 2080-11-21T05:52:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:25–12:13 on the 20th, 11:25–12:13 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 36 of 48 minutes on the 20th and 48 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both middays qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 719 s" }, { "step": "ruling", "text": "Durgā Navamī, Fuzhou, 2080: Wednesday 20 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "durga-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-20", "confidence": "determinate" } ], "quote": "In Fuzhou, Durgā Navamī 2080 falls on Wednesday 20 November. Navamī runs from 11:37 on Wed 20 Nov to 13:52 on Thu 21 Nov and covers 36 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 5740, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "2080-11-20T11:36:31+08:00", "utc": "2080-11-20T03:36:31Z", "ms": 3499299391384.434 }, "end": { "local": "2080-11-21T13:52:03+08:00", "utc": "2080-11-21T05:52:03Z", "ms": 3499393923287.1 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-20T11:36:31+08:00", "utc": "2080-11-20T03:36:31Z", "ms": 3499299391384.434 }, "end": { "local": "2080-11-21T13:52:03+08:00", "utc": "2080-11-21T05:52:03Z", "ms": 3499393923287.1 } }, "kaala": "purvahna", "days": [ { "local_date": "2080-11-20", "window": { "start": { "local": "2080-11-20T06:25:28+08:00", "utc": "2080-11-19T22:25:28Z", "ms": 3499280727670.4644 }, "end": { "local": "2080-11-20T10:00:51+08:00", "utc": "2080-11-20T02:00:51Z", "ms": 3499293651018.74 } }, "covered_min": 0, "window_min": 215, "qualifies": false }, { "local_date": "2080-11-21", "window": { "start": { "local": "2080-11-21T06:26:12+08:00", "utc": "2080-11-20T22:26:12Z", "ms": 3499367171869.859 }, "end": { "local": "2080-11-21T10:01:16+08:00", "utc": "2080-11-21T02:01:16Z", "ms": 3499380075929.568 } }, "covered_min": 215, "window_min": 215, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 11:37 on Wed 20 Nov to 13:52 on Thu 21 Nov.", "fact": "2080-11-20T03:36:31Z → 2080-11-21T05:52:03Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:25–10:01 on the 20th, 06:26–10:01 on the 21st.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 0 of 215 minutes on the 20th and 215 of 215 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one forenoon qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 5740 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Fuzhou, 2080: Thursday 21 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": "2080-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-21", "confidence": "determinate" } ], "quote": "In Fuzhou, Akṣaya Navamī (Amla Navami) 2080 falls on Thursday 21 November. Navamī runs from 11:37 on Wed 20 Nov to 13:52 on Thu 21 Nov and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-11-23", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32911, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-11-22T15:35:27+08:00", "utc": "2080-11-22T07:35:27Z", "ms": 3499486527200.2007 }, "end": { "local": "2080-11-23T16:36:57+08:00", "utc": "2080-11-23T08:36:57Z", "ms": 3499576616945.474 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-22T15:35:27+08:00", "utc": "2080-11-22T07:35:27Z", "ms": 3499486527200.2007 }, "end": { "local": "2080-11-23T16:36:57+08:00", "utc": "2080-11-23T08:36:57Z", "ms": 3499576616945.474 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-11-22", "window": { "start": { "local": "2080-11-22T06:26:56+08:00", "utc": "2080-11-21T22:26:56Z", "ms": 3499453616119.6294 }, "end": { "local": "2080-11-22T06:26:56+08:00", "utc": "2080-11-21T22:26:56Z", "ms": 3499453616119.6294 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-11-23", "window": { "start": { "local": "2080-11-23T06:27:40+08:00", "utc": "2080-11-22T22:27:40Z", "ms": 3499540060390.643 }, "end": { "local": "2080-11-23T06:27:40+08:00", "utc": "2080-11-22T22:27:40Z", "ms": 3499540060390.643 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:35 on Fri 22 Nov to 16:37 on Sat 23 Nov.", "fact": "2080-11-22T07:35:27Z → 2080-11-23T08:36:57Z" }, { "step": "kaala", "text": "Sunrise is at 06:27 on the 22nd and 06:28 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 32911 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Fuzhou, 2080: Saturday 23 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ekadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The general rule prevalent in most part of India is that it is to be observed on the day when the tithi is current at sunrise. If it occurs on two successive days, it is to be observed on the second day. When does not occur on any day, it is to be observed on the day of the tithi, but widows and sannyasins would observe on the next-day." } ], "not_evaluated": "The next-day observance for widows and sannyāsins, the Bengal avoidance of an ekādaśī joined to daśamī, and the Vaiṣṇava aruṇodaya rule belong to other traditions and are not applied.", "kaala": "sunrise", "priority": "paraviddha", "when_absent": "tithi-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-23", "confidence": "determinate" } ], "quote": "In Fuzhou, Prabodhinī Ekādaśī 2080 falls on Saturday 23 November. Ekādaśī runs from 15:35 on Fri 22 Nov to 16:37 on Sat 23 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-11-23", "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/2080/pradosha-vrata?on=2080-11-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1148, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-11-24T16:51:45+08:00", "utc": "2080-11-24T08:51:45Z", "ms": 3499663904574.884 }, "end": { "local": "2080-11-25T16:19:53+08:00", "utc": "2080-11-25T08:19:53Z", "ms": 3499748393398.957 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-24T16:51:45+08:00", "utc": "2080-11-24T08:51:45Z", "ms": 3499663904574.884 }, "end": { "local": "2080-11-25T16:19:53+08:00", "utc": "2080-11-25T08:19:53Z", "ms": 3499748393398.957 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-11-24", "window": { "start": { "local": "2080-11-24T17:10:52+08:00", "utc": "2080-11-24T09:10:52Z", "ms": 3499665052159.3887 }, "end": { "local": "2080-11-24T18:57:18+08:00", "utc": "2080-11-24T10:57:18Z", "ms": 3499671438388.7065 } }, "covered_min": 106, "window_min": 106, "qualifies": true }, { "local_date": "2080-11-25", "window": { "start": { "local": "2080-11-25T17:10:45+08:00", "utc": "2080-11-25T09:10:45Z", "ms": 3499751444590.249 }, "end": { "local": "2080-11-25T18:57:18+08:00", "utc": "2080-11-25T10:57:18Z", "ms": 3499757837716.6597 } }, "covered_min": 0, "window_min": 107, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 16:52 on Sun 24 Nov to 16:20 on Mon 25 Nov.", "fact": "2080-11-24T08:51:45Z → 2080-11-25T08:19:53Z" }, { "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 107 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 1148 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Sunday 24 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Sunday 24 November. Trayodaśī runs from 16:52 on Sun 24 Nov to 16:20 on Mon 25 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-11-24", "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/2080/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30071, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-11-26T15:05:26+08:00", "utc": "2080-11-26T07:05:26Z", "ms": 3499830326356.284 }, "end": { "local": "2080-11-27T13:15:16+08:00", "utc": "2080-11-27T05:15:16Z", "ms": 3499910116349.914 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-26T15:05:26+08:00", "utc": "2080-11-26T07:05:26Z", "ms": 3499830326356.284 }, "end": { "local": "2080-11-27T13:15:16+08:00", "utc": "2080-11-27T05:15:16Z", "ms": 3499910116349.914 } }, "kaala": "nishita", "days": [ { "local_date": "2080-11-26", "window": { "start": { "local": "2080-11-26T23:26:38+08:00", "utc": "2080-11-26T15:26:38Z", "ms": 3499860397831.704 }, "end": { "local": "2080-11-27T00:14:38+08:00", "utc": "2080-11-26T16:14:38Z", "ms": 3499863277831.704 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-11-27", "window": { "start": { "local": "2080-11-27T23:26:58+08:00", "utc": "2080-11-27T15:26:58Z", "ms": 3499946817559.4014 }, "end": { "local": "2080-11-28T00:14:58+08:00", "utc": "2080-11-27T16:14:58Z", "ms": 3499949697559.4014 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:05 on Tue 26 Nov to 13:15 on Wed 27 Nov.", "fact": "2080-11-26T07:05:26Z → 2080-11-27T05:15:16Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:27–00:15 on the 26th, 23:27–00:15 on the 27th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during niśītha. It covers 48 of 48 minutes on the 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 30071 s" }, { "step": "ruling", "text": "Rāsayātrā, Fuzhou, 2080: Tuesday 26 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rasayatra", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima." } ], "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Rāsayātrā 2080 falls on Tuesday 26 November. Pūrṇimā runs from 15:05 on Tue 26 Nov to 13:15 on Wed 27 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3641, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-11-26T15:05:26+08:00", "utc": "2080-11-26T07:05:26Z", "ms": 3499830326356.284 }, "end": { "local": "2080-11-27T13:15:16+08:00", "utc": "2080-11-27T05:15:16Z", "ms": 3499910116349.914 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "2080-11-26T15:05:26+08:00", "utc": "2080-11-26T07:05:26Z", "ms": 3499830326356.284 }, "end": { "local": "2080-11-27T13:15:16+08:00", "utc": "2080-11-27T05:15:16Z", "ms": 3499910116349.914 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-11-26", "window": { "start": { "local": "2080-11-26T11:26:16+08:00", "utc": "2080-11-26T03:26:16Z", "ms": 3499817175800.13 }, "end": { "local": "2080-11-26T12:14:16+08:00", "utc": "2080-11-26T04:14:16Z", "ms": 3499820055800.13 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-11-27", "window": { "start": { "local": "2080-11-27T11:26:36+08:00", "utc": "2080-11-27T03:26:36Z", "ms": 3499903595590.589 }, "end": { "local": "2080-11-27T12:14:36+08:00", "utc": "2080-11-27T04:14:36Z", "ms": 3499906475590.589 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:05 on Tue 26 Nov to 13:15 on Wed 27 Nov.", "fact": "2080-11-26T07:05:26Z → 2080-11-27T05:15:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:26–12:14 on the 26th, 11:27–12:15 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 3641 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Fuzhou, 2080: Wednesday 27 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kartiki-purnima", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rasayatra, (nisithavyapini, i.e. covering a period from 24 minutes before to 24 minutes after midnight. If occurs on two days or does not occur on any day, it is to be observed on the second day), Puskar Fair. Ratha yatra (Jain), Tripurotsava (evening), Kedara vrata (Orissa), Kartiki purnima." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-27", "confidence": "determinate" } ], "quote": "In Fuzhou, Kārtikī Pūrṇimā 2080 falls on Wednesday 27 November. Pūrṇimā runs from 15:05 on Tue 26 Nov to 13:15 on Wed 27 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-11-30", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-11-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24087, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-11-30T05:39:02+08:00", "utc": "2080-11-29T21:39:02Z", "ms": 3500141941728.069 }, "end": { "local": "2080-12-01T02:55:11+08:00", "utc": "2080-11-30T18:55:11Z", "ms": 3500218511424.7573 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-11-30T05:39:02+08:00", "utc": "2080-11-29T21:39:02Z", "ms": 3500141941728.069 }, "end": { "local": "2080-12-01T02:55:11+08:00", "utc": "2080-11-30T18:55:11Z", "ms": 3500218511424.7573 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-11-29", "window": { "start": { "local": "2080-11-29T19:04:41+08:00", "utc": "2080-11-29T11:04:41Z", "ms": 3500103881033.9336 }, "end": { "local": "2080-11-29T19:04:41+08:00", "utc": "2080-11-29T11:04:41Z", "ms": 3500103881033.9336 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-11-30", "window": { "start": { "local": "2080-11-30T20:13:44+08:00", "utc": "2080-11-30T12:13:44Z", "ms": 3500194424078.231 }, "end": { "local": "2080-11-30T20:13:44+08:00", "utc": "2080-11-30T12:13:44Z", "ms": 3500194424078.231 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:39 on Sat 30 Nov to 02:55 on Sun 1 Dec.", "fact": "2080-11-29T21:39:02Z → 2080-11-30T18:55:11Z" }, { "step": "kaala", "text": "Moonrise is at 19:05 on the 29th and 20:14 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 29th and is on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24087 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Saturday 30 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": "2080-11-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-11-30", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Saturday 30 November. Caturthī runs from 05:39 on Sat 30 Nov to 02:55 on Sun 1 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-11-30", "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/2080/ekadashi?on=2080-12-07", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29232, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-12-06T15:30:50+08:00", "utc": "2080-12-06T07:30:50Z", "ms": 3500695849581.332 }, "end": { "local": "2080-12-07T14:44:57+08:00", "utc": "2080-12-07T06:44:57Z", "ms": 3500779496938.917 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-06T15:30:50+08:00", "utc": "2080-12-06T07:30:50Z", "ms": 3500695849581.332 }, "end": { "local": "2080-12-07T14:44:57+08:00", "utc": "2080-12-07T06:44:57Z", "ms": 3500779496938.917 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-12-06", "window": { "start": { "local": "2080-12-06T06:37:04+08:00", "utc": "2080-12-05T22:37:04Z", "ms": 3500663824087.2437 }, "end": { "local": "2080-12-06T06:37:04+08:00", "utc": "2080-12-05T22:37:04Z", "ms": 3500663824087.2437 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-12-07", "window": { "start": { "local": "2080-12-07T06:37:45+08:00", "utc": "2080-12-06T22:37:45Z", "ms": 3500750265354.458 }, "end": { "local": "2080-12-07T06:37:45+08:00", "utc": "2080-12-06T22:37:45Z", "ms": 3500750265354.458 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:31 on Fri 6 Dec to 14:45 on Sat 7 Dec.", "fact": "2080-12-06T07:30:50Z → 2080-12-07T06:44:57Z" }, { "step": "kaala", "text": "Sunrise is at 06:37 on the 6th and 06:38 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 29232 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Fuzhou, 2080: Saturday 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": "2080-12-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-07", "confidence": "determinate" } ], "quote": "In Fuzhou, Utpannā Ekādaśī 2080 falls on Saturday 7 December. Ekādaśī runs from 15:31 on Fri 6 Dec to 14:45 on Sat 7 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-12-07", "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/2080/pradosha-vrata?on=2080-12-08", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10355, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-12-08T14:18:52+08:00", "utc": "2080-12-08T06:18:52Z", "ms": 3500864332220.799 }, "end": { "local": "2080-12-09T14:13:18+08:00", "utc": "2080-12-09T06:13:18Z", "ms": 3500950398016.896 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-08T14:18:52+08:00", "utc": "2080-12-08T06:18:52Z", "ms": 3500864332220.799 }, "end": { "local": "2080-12-09T14:13:18+08:00", "utc": "2080-12-09T06:13:18Z", "ms": 3500950398016.896 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-12-08", "window": { "start": { "local": "2080-12-08T17:11:27+08:00", "utc": "2080-12-08T09:11:27Z", "ms": 3500874687096.3955 }, "end": { "local": "2080-12-08T18:59:08+08:00", "utc": "2080-12-08T10:59:08Z", "ms": 3500881148330.898 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "2080-12-09", "window": { "start": { "local": "2080-12-09T17:11:41+08:00", "utc": "2080-12-09T09:11:41Z", "ms": 3500961101052.8267 }, "end": { "local": "2080-12-09T18:59:26+08:00", "utc": "2080-12-09T10:59:26Z", "ms": 3500967565712.3145 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:19 on Sun 8 Dec to 14:13 on Mon 9 Dec.", "fact": "2080-12-08T06:18:52Z → 2080-12-09T06:13:18Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:11–18:59 on the 8th, 17:12–18:59 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 108 of 108 minutes on the 8th and 0 of 108 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10355 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Fuzhou, 2080: Sunday 8 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": "2080-12-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-08", "confidence": "determinate" } ], "quote": "In Fuzhou, Kṛṣṇa Pradoṣa Vrata 2080 falls on Sunday 8 December. Trayodaśī runs from 14:19 on Sun 8 Dec to 14:13 on Mon 9 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-12-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/fuzhou/festivals/2080/shivaratri?on=2080-12-09", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32538, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "2080-12-09T14:13:18+08:00", "utc": "2080-12-09T06:13:18Z", "ms": 3500950398016.896 }, "end": { "local": "2080-12-10T14:29:53+08:00", "utc": "2080-12-10T06:29:53Z", "ms": 3501037792722.3735 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-09T14:13:18+08:00", "utc": "2080-12-09T06:13:18Z", "ms": 3500950398016.896 }, "end": { "local": "2080-12-10T14:29:53+08:00", "utc": "2080-12-10T06:29:53Z", "ms": 3501037792722.3735 } }, "kaala": "nishita", "days": [ { "local_date": "2080-12-09", "window": { "start": { "local": "2080-12-09T23:31:44+08:00", "utc": "2080-12-09T15:31:44Z", "ms": 3500983903525.9053 }, "end": { "local": "2080-12-10T00:19:44+08:00", "utc": "2080-12-09T16:19:44Z", "ms": 3500986783525.9053 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-12-10", "window": { "start": { "local": "2080-12-10T23:32:11+08:00", "utc": "2080-12-10T15:32:11Z", "ms": 3501070330738.5728 }, "end": { "local": "2080-12-11T00:20:11+08:00", "utc": "2080-12-10T16:20:11Z", "ms": 3501073210738.5728 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 14:13 on Mon 9 Dec to 14:30 on Tue 10 Dec.", "fact": "2080-12-09T06:13:18Z → 2080-12-10T06:29:53Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:32–00:20 on the 9th, 23:32–00:20 on the 10th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32538 s" }, { "step": "ruling", "text": "Śivarātri, Fuzhou, 2080: Monday 9 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": "2080-12-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-09", "confidence": "determinate" } ], "quote": "In Fuzhou, Śivarātri 2080 falls on Monday 9 December. Caturdaśī runs from 14:13 on Mon 9 Dec to 14:30 on Tue 10 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/fuzhou/festivals/2080/shivaratri?on=2080-12-09", "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/2080/vinayaka-chaturthi?on=2080-12-15", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27357, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-12-14T19:57:42+08:00", "utc": "2080-12-14T11:57:42Z", "ms": 3501403062197.511 }, "end": { "local": "2080-12-15T22:23:49+08:00", "utc": "2080-12-15T14:23:49Z", "ms": 3501498229230.2188 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-14T19:57:42+08:00", "utc": "2080-12-14T11:57:42Z", "ms": 3501403062197.511 }, "end": { "local": "2080-12-15T22:23:49+08:00", "utc": "2080-12-15T14:23:49Z", "ms": 3501498229230.2188 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-12-14", "window": { "start": { "local": "2080-12-14T11:33:45+08:00", "utc": "2080-12-14T03:33:45Z", "ms": 3501372825003.3423 }, "end": { "local": "2080-12-14T12:21:45+08:00", "utc": "2080-12-14T04:21:45Z", "ms": 3501375705003.3423 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-12-15", "window": { "start": { "local": "2080-12-15T11:34:14+08:00", "utc": "2080-12-15T03:34:14Z", "ms": 3501459254182.491 }, "end": { "local": "2080-12-15T12:22:14+08:00", "utc": "2080-12-15T04:22:14Z", "ms": 3501462134182.491 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 19:58 on Sat 14 Dec to 22:24 on Sun 15 Dec.", "fact": "2080-12-14T11:57:42Z → 2080-12-15T14:23:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 14th, 11:34–12:22 on the 15th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 48 of 48 on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27357 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Fuzhou, 2080: Sunday 15 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-15", "confidence": "determinate" } ], "quote": "In Fuzhou, Vināyaka Caturthī 2080 falls on Sunday 15 December. Caturthī runs from 19:58 on Sat 14 Dec to 22:24 on Sun 15 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/vinayaka-chaturthi?on=2080-12-15", "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/2080/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36095, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "2080-12-15T22:23:49+08:00", "utc": "2080-12-15T14:23:49Z", "ms": 3501498229230.2188 }, "end": { "local": "2080-12-17T01:04:38+08:00", "utc": "2080-12-16T17:04:38Z", "ms": 3501594278493.805 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-15T22:23:49+08:00", "utc": "2080-12-15T14:23:49Z", "ms": 3501498229230.2188 }, "end": { "local": "2080-12-17T01:04:38+08:00", "utc": "2080-12-16T17:04:38Z", "ms": 3501594278493.805 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-12-15", "window": { "start": { "local": "2080-12-15T11:34:14+08:00", "utc": "2080-12-15T03:34:14Z", "ms": 3501459254182.491 }, "end": { "local": "2080-12-15T12:22:14+08:00", "utc": "2080-12-15T04:22:14Z", "ms": 3501462134182.491 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "2080-12-16", "window": { "start": { "local": "2080-12-16T11:34:44+08:00", "utc": "2080-12-16T03:34:44Z", "ms": 3501545683584.534 }, "end": { "local": "2080-12-16T12:22:44+08:00", "utc": "2080-12-16T04:22:44Z", "ms": 3501548563584.534 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 22:24 on Sun 15 Dec to 01:05 on Tue 17 Dec.", "fact": "2080-12-15T14:23:49Z → 2080-12-16T17:04:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 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": "Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 15th and 48 of 48 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 36095 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Fuzhou, 2080: Monday 16 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami-margashirsha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (2nd) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-12-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-16", "confidence": "determinate" } ], "quote": "In Fuzhou, Nāga Pañcamī (Mārgaśīrṣa) 2080 falls on Monday 16 December. Pañcamī runs from 22:24 on Sun 15 Dec to 01:05 on Tue 17 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28069, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2080-12-17T01:04:38+08:00", "utc": "2080-12-16T17:04:38Z", "ms": 3501594278493.805 }, "end": { "local": "2080-12-18T03:47:54+08:00", "utc": "2080-12-17T19:47:54Z", "ms": 3501690473993.5684 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-17T01:04:38+08:00", "utc": "2080-12-16T17:04:38Z", "ms": 3501594278493.805 }, "end": { "local": "2080-12-18T03:47:54+08:00", "utc": "2080-12-17T19:47:54Z", "ms": 3501690473993.5684 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-12-17", "window": { "start": { "local": "2080-12-17T11:35:13+08:00", "utc": "2080-12-17T03:35:13Z", "ms": 3501632113173.714 }, "end": { "local": "2080-12-17T12:23:13+08:00", "utc": "2080-12-17T04:23:13Z", "ms": 3501634993173.714 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-12-18", "window": { "start": { "local": "2080-12-18T11:35:43+08:00", "utc": "2080-12-18T03:35:43Z", "ms": 3501718542914.4463 }, "end": { "local": "2080-12-18T12:23:43+08:00", "utc": "2080-12-18T04:23:43Z", "ms": 3501721422914.4463 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 01:05 on Tue 17 Dec to 03:48 on Wed 18 Dec.", "fact": "2080-12-16T17:04:38Z → 2080-12-17T19:47:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 17th, 11:36–12:24 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28069 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Fuzhou, 2080: Tuesday 17 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "champa-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "not_evaluated": "The row calls the day special with Śatabhiṣaj nakṣatra, Vyatīpāta yoga and a Sunday; none is tested.", "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Campā Ṣaṣṭhī 2080 falls on Tuesday 17 December. Ṣaṣṭhī runs from 01:05 on Tue 17 Dec to 03:48 on Wed 18 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28069, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "2080-12-17T01:04:38+08:00", "utc": "2080-12-16T17:04:38Z", "ms": 3501594278493.805 }, "end": { "local": "2080-12-18T03:47:54+08:00", "utc": "2080-12-17T19:47:54Z", "ms": 3501690473993.5684 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-17T01:04:38+08:00", "utc": "2080-12-16T17:04:38Z", "ms": 3501594278493.805 }, "end": { "local": "2080-12-18T03:47:54+08:00", "utc": "2080-12-17T19:47:54Z", "ms": 3501690473993.5684 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-12-17", "window": { "start": { "local": "2080-12-17T11:35:13+08:00", "utc": "2080-12-17T03:35:13Z", "ms": 3501632113173.714 }, "end": { "local": "2080-12-17T12:23:13+08:00", "utc": "2080-12-17T04:23:13Z", "ms": 3501634993173.714 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-12-18", "window": { "start": { "local": "2080-12-18T11:35:43+08:00", "utc": "2080-12-18T03:35:43Z", "ms": 3501718542914.4463 }, "end": { "local": "2080-12-18T12:23:43+08:00", "utc": "2080-12-18T04:23:43Z", "ms": 3501721422914.4463 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 01:05 on Tue 17 Dec to 03:48 on Wed 18 Dec.", "fact": "2080-12-16T17:04:38Z → 2080-12-17T19:47:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 17th, 11:36–12:24 on the 18th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 28069 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Fuzhou, 2080: Tuesday 17 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 6 Campa sasthi (Maharashtra) (paraviddha). (Special when combined with naksatra Satabhisaj, yoga Vyatipata and Sunday), Skanda sasthi (purvaviddha), Guha sasthi" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-12-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-17", "confidence": "determinate" } ], "quote": "In Fuzhou, Skanda Ṣaṣṭhī 2080 falls on Tuesday 17 December. Ṣaṣṭhī runs from 01:05 on Tue 17 Dec to 03:48 on Wed 18 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19054, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "2080-12-18T03:47:54+08:00", "utc": "2080-12-17T19:47:54Z", "ms": 3501690473993.5684 }, "end": { "local": "2080-12-19T06:18:39+08:00", "utc": "2080-12-18T22:18:39Z", "ms": 3501785919174.211 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-18T03:47:54+08:00", "utc": "2080-12-17T19:47:54Z", "ms": 3501690473993.5684 }, "end": { "local": "2080-12-19T06:18:39+08:00", "utc": "2080-12-18T22:18:39Z", "ms": 3501785919174.211 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-12-18", "window": { "start": { "local": "2080-12-18T11:35:43+08:00", "utc": "2080-12-18T03:35:43Z", "ms": 3501718542914.4463 }, "end": { "local": "2080-12-18T12:23:43+08:00", "utc": "2080-12-18T04:23:43Z", "ms": 3501721422914.4463 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-12-19", "window": { "start": { "local": "2080-12-19T11:36:13+08:00", "utc": "2080-12-19T03:36:13Z", "ms": 3501804972771.3926 }, "end": { "local": "2080-12-19T12:24:13+08:00", "utc": "2080-12-19T04:24:13Z", "ms": 3501807852771.3926 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 03:48 on Wed 18 Dec to 06:19 on Thu 19 Dec.", "fact": "2080-12-17T19:47:54Z → 2080-12-18T22:18:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 18th, 11:36–12:24 on the 19th.", "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 18th and 0 of 48 on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 19054 s" }, { "step": "ruling", "text": "Mitra Saptamī, Fuzhou, 2080: Wednesday 18 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mitra-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Mitra saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-12-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-18", "confidence": "determinate" } ], "quote": "In Fuzhou, Mitra Saptamī 2080 falls on Wednesday 18 December. Saptamī runs from 03:48 on Wed 18 Dec to 06:19 on Thu 19 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/ekadashi?on=2080-12-23", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11271, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "2080-12-22T10:15:53+08:00", "utc": "2080-12-22T02:15:53Z", "ms": 3502059352627.8657 }, "end": { "local": "2080-12-23T09:54:59+08:00", "utc": "2080-12-23T01:54:59Z", "ms": 3502144498725.709 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-22T10:15:53+08:00", "utc": "2080-12-22T02:15:53Z", "ms": 3502059352627.8657 }, "end": { "local": "2080-12-23T09:54:59+08:00", "utc": "2080-12-23T01:54:59Z", "ms": 3502144498725.709 } }, "kaala": "sunrise", "days": [ { "local_date": "2080-12-22", "window": { "start": { "local": "2080-12-22T06:46:40+08:00", "utc": "2080-12-21T22:46:40Z", "ms": 3502046799968.9307 }, "end": { "local": "2080-12-22T06:46:40+08:00", "utc": "2080-12-21T22:46:40Z", "ms": 3502046799968.9307 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "2080-12-23", "window": { "start": { "local": "2080-12-23T06:47:08+08:00", "utc": "2080-12-22T22:47:08Z", "ms": 3502133228091.843 }, "end": { "local": "2080-12-23T06:47:08+08:00", "utc": "2080-12-22T22:47:08Z", "ms": 3502133228091.843 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:16 on Sun 22 Dec to 09:55 on Mon 23 Dec.", "fact": "2080-12-22T02:15:53Z → 2080-12-23T01:54:59Z" }, { "step": "kaala", "text": "Sunrise is at 06:47 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 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 11271 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Fuzhou, 2080: Monday 23 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": "2080-12-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-23", "confidence": "determinate" } ], "quote": "In Fuzhou, Mokṣadā Ekādaśī 2080 falls on Monday 23 December. Ekādaśī runs from 10:16 on Sun 22 Dec to 09:55 on Mon 23 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/ekadashi?on=2080-12-23", "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/2080/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6194, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "2080-12-23T09:54:59+08:00", "utc": "2080-12-23T01:54:59Z", "ms": 3502144498725.709 }, "end": { "local": "2080-12-24T08:42:26+08:00", "utc": "2080-12-24T00:42:26Z", "ms": 3502226545690.0776 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-23T09:54:59+08:00", "utc": "2080-12-23T01:54:59Z", "ms": 3502144498725.709 }, "end": { "local": "2080-12-24T08:42:26+08:00", "utc": "2080-12-24T00:42:26Z", "ms": 3502226545690.0776 } }, "kaala": "madhyahna", "days": [ { "local_date": "2080-12-23", "window": { "start": { "local": "2080-12-23T11:38:13+08:00", "utc": "2080-12-23T03:38:13Z", "ms": 3502150692669.3945 }, "end": { "local": "2080-12-23T12:26:13+08:00", "utc": "2080-12-23T04:26:13Z", "ms": 3502153572669.3945 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "2080-12-24", "window": { "start": { "local": "2080-12-24T11:38:43+08:00", "utc": "2080-12-24T03:38:43Z", "ms": 3502237122594.4 }, "end": { "local": "2080-12-24T12:26:43+08:00", "utc": "2080-12-24T04:26:43Z", "ms": 3502240002594.4 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 09:55 on Mon 23 Dec to 08:42 on Tue 24 Dec.", "fact": "2080-12-23T01:54:59Z → 2080-12-24T00:42:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 23rd, 11:39–12:27 on the 24th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 6194 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Fuzhou, 2080: Monday 23 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "akhanda-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-12-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-23", "confidence": "determinate" } ], "quote": "In Fuzhou, Akhaṇḍa Dvādaśī 2080 falls on Monday 23 December. Dvādaśī runs from 09:55 on Mon 23 Dec to 08:42 on Tue 24 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/pradosha-vrata?on=2080-12-24", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30924, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "2080-12-24T08:42:26+08:00", "utc": "2080-12-24T00:42:26Z", "ms": 3502226545690.0776 }, "end": { "local": "2080-12-25T06:43:53+08:00", "utc": "2080-12-24T22:43:53Z", "ms": 3502305832563.959 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-24T08:42:26+08:00", "utc": "2080-12-24T00:42:26Z", "ms": 3502226545690.0776 }, "end": { "local": "2080-12-25T06:43:53+08:00", "utc": "2080-12-24T22:43:53Z", "ms": 3502305832563.959 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-12-24", "window": { "start": { "local": "2080-12-24T17:17:50+08:00", "utc": "2080-12-24T09:17:50Z", "ms": 3502257470118.757 }, "end": { "local": "2080-12-24T19:05:52+08:00", "utc": "2080-12-24T11:05:52Z", "ms": 3502263951552.9785 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "2080-12-25", "window": { "start": { "local": "2080-12-25T17:18:24+08:00", "utc": "2080-12-25T09:18:24Z", "ms": 3502343903996.8076 }, "end": { "local": "2080-12-25T19:06:24+08:00", "utc": "2080-12-25T11:06:24Z", "ms": 3502350384194.822 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:42 on Tue 24 Dec to 06:44 on Wed 25 Dec.", "fact": "2080-12-24T00:42:26Z → 2080-12-24T22:43:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:18–19:06 on the 24th, 17:18–19:06 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 108 of 108 minutes on the 24th and 0 of 108 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 30924 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Fuzhou, 2080: Tuesday 24 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-12-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-24", "confidence": "determinate" } ], "quote": "In Fuzhou, Śukla Pradoṣa Vrata 2080 falls on Tuesday 24 December. Trayodaśī runs from 08:42 on Tue 24 Dec to 06:44 on Wed 25 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/pradosha-vrata?on=2080-12-24", "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/2080/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21454, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "2080-12-26T04:07:50+08:00", "utc": "2080-12-25T20:07:50Z", "ms": 3502382870333.529 }, "end": { "local": "2080-12-27T01:04:32+08:00", "utc": "2080-12-26T17:04:32Z", "ms": 3502458271948.729 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-26T04:07:50+08:00", "utc": "2080-12-25T20:07:50Z", "ms": 3502382870333.529 }, "end": { "local": "2080-12-27T01:04:32+08:00", "utc": "2080-12-26T17:04:32Z", "ms": 3502458271948.729 } }, "kaala": "pradosha", "days": [ { "local_date": "2080-12-25", "window": { "start": { "local": "2080-12-25T17:18:24+08:00", "utc": "2080-12-25T09:18:24Z", "ms": 3502343903996.8076 }, "end": { "local": "2080-12-25T19:06:24+08:00", "utc": "2080-12-25T11:06:24Z", "ms": 3502350384194.822 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "2080-12-26", "window": { "start": { "local": "2080-12-26T17:18:59+08:00", "utc": "2080-12-26T09:18:59Z", "ms": 3502430338847.5874 }, "end": { "local": "2080-12-26T19:06:58+08:00", "utc": "2080-12-26T11:06:58Z", "ms": 3502436817516.604 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 04:08 on Thu 26 Dec to 01:05 on Fri 27 Dec.", "fact": "2080-12-25T20:07:50Z → 2080-12-26T17:04:32Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:18–19:06 on the 25th, 17:19–19:07 on the 26th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 108 minutes on the 25th and 108 of 108 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 21454 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Fuzhou, 2080: Thursday 26 December.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dattatreyotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Dattatreyotpatti (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "2080-12-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-26", "confidence": "determinate" } ], "quote": "In Fuzhou, Dattātreyotpatti (Datta Jayanti) 2080 falls on Thursday 26 December. Pūrṇimā runs from 04:08 on Thu 26 Dec to 01:05 on Fri 27 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/fuzhou/festivals/2080/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/2080/sankashta-chaturthi?on=2080-12-29", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1810821", "year": 2080, "local_date": "2080-12-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19005, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "2080-12-29T15:00:05+08:00", "utc": "2080-12-29T07:00:05Z", "ms": 3502681204562.876 }, "end": { "local": "2080-12-30T11:54:34+08:00", "utc": "2080-12-30T03:54:34Z", "ms": 3502756474060.2964 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "2080-12-29T15:00:05+08:00", "utc": "2080-12-29T07:00:05Z", "ms": 3502681204562.876 }, "end": { "local": "2080-12-30T11:54:34+08:00", "utc": "2080-12-30T03:54:34Z", "ms": 3502756474060.2964 } }, "kaala": "moonrise", "days": [ { "local_date": "2080-12-29", "window": { "start": { "local": "2080-12-29T20:16:49+08:00", "utc": "2080-12-29T12:16:49Z", "ms": 3502700209456.063 }, "end": { "local": "2080-12-29T20:16:49+08:00", "utc": "2080-12-29T12:16:49Z", "ms": 3502700209456.063 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "2080-12-30", "window": { "start": { "local": "2080-12-30T21:24:29+08:00", "utc": "2080-12-30T13:24:29Z", "ms": 3502790669370.5083 }, "end": { "local": "2080-12-30T21:24:29+08:00", "utc": "2080-12-30T13:24:29Z", "ms": 3502790669370.5083 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:00 on Sun 29 Dec to 11:55 on Mon 30 Dec.", "fact": "2080-12-29T07:00:05Z → 2080-12-30T03:54:34Z" }, { "step": "kaala", "text": "Moonrise is at 20:17 on the 29th and 21:24 on the 30th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 29th and is not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19005 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Fuzhou, 2080: Sunday 29 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": "2080-12-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "2080-12-29", "confidence": "determinate" } ], "quote": "In Fuzhou, Saṅkaṣṭa Caturthī 2080 falls on Sunday 29 December. Caturthī runs from 15:00 on Sun 29 Dec to 11:55 on Mon 30 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/fuzhou/festivals/2080/sankashta-chaturthi?on=2080-12-29", "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" } }