{ "id": "/lu-an/festivals/1933", "place": { "id": "1802206", "slug": "lu-an", "name": "Lu’an", "region": "Anhui, China", "country": "CN", "lat": 31.73561, "lon": 116.51688, "elevation_m": 81, "tz": "Asia/Shanghai" }, "year": 1933, "tradition": "smarta", "method": "pac-rp@2026.1", "ruleset": "2026.3-draft", "rulings": [ { "id": "/lu-an/festivals/1933/ekadashi?on=1933-01-07", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37239, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-01-06T18:19:13+08:00", "utc": "1933-01-06T10:19:13Z", "ms": -1167140447316.5383 }, "end": { "local": "1933-01-07T20:54:36+08:00", "utc": "1933-01-07T12:54:36Z", "ms": -1167044723967.3242 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-01-06T18:19:13+08:00", "utc": "1933-01-06T10:19:13Z", "ms": -1167140447316.5383 }, "end": { "local": "1933-01-07T20:54:36+08:00", "utc": "1933-01-07T12:54:36Z", "ms": -1167044723967.3242 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-01-07", "window": { "start": { "local": "1933-01-07T07:15:11+08:00", "utc": "1933-01-06T23:15:11Z", "ms": -1167093888538.3242 }, "end": { "local": "1933-01-07T07:15:11+08:00", "utc": "1933-01-06T23:15:11Z", "ms": -1167093888538.3242 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-01-08", "window": { "start": { "local": "1933-01-08T07:15:15+08:00", "utc": "1933-01-07T23:15:15Z", "ms": -1167007484980.0952 }, "end": { "local": "1933-01-08T07:15:15+08:00", "utc": "1933-01-07T23:15:15Z", "ms": -1167007484980.0952 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:19 on Fri 6 Jan to 20:55 on Sat 7 Jan.", "fact": "1933-01-06T10:19:13Z → 1933-01-07T12:54:36Z" }, { "step": "kaala", "text": "Sunrise is at 07:15 on the 7th and 07:15 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 37239 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Lu’an, 1933: Saturday 7 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": "1933-01-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-07", "confidence": "determinate" } ], "quote": "In Lu’an, Putradā Ekādaśī 1933 falls on Saturday 7 January. Ekādaśī runs from 18:19 on Fri 6 Jan to 20:55 on Sat 7 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-01-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-01-09", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14608, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-01-08T23:20:02+08:00", "utc": "1933-01-08T15:20:02Z", "ms": -1166949597556.3528 }, "end": { "local": "1933-01-10T01:27:52+08:00", "utc": "1933-01-09T17:27:52Z", "ms": -1166855527619.2356 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-01-08T23:20:02+08:00", "utc": "1933-01-08T15:20:02Z", "ms": -1166949597556.3528 }, "end": { "local": "1933-01-10T01:27:52+08:00", "utc": "1933-01-09T17:27:52Z", "ms": -1166855527619.2356 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-01-08", "window": { "start": { "local": "1933-01-08T17:26:01+08:00", "utc": "1933-01-08T09:26:01Z", "ms": -1166970839292.9624 }, "end": { "local": "1933-01-08T19:16:35+08:00", "utc": "1933-01-08T11:16:35Z", "ms": -1166964205144.2607 } }, "covered_min": 0, "window_min": 111, "qualifies": false }, { "local_date": "1933-01-09", "window": { "start": { "local": "1933-01-09T17:26:50+08:00", "utc": "1933-01-09T09:26:50Z", "ms": -1166884389973.6206 }, "end": { "local": "1933-01-09T19:17:18+08:00", "utc": "1933-01-09T11:17:18Z", "ms": -1166877762395.0012 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 23:20 on Sun 8 Jan to 01:28 on Tue 10 Jan.", "fact": "1933-01-08T15:20:02Z → 1933-01-09T17:27:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:26–19:17 on the 8th, 17:27–19:17 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 111 minutes on the 8th and 110 of 110 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 14608 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Monday 9 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": "1933-01-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-09", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Monday 9 January. Trayodaśī runs from 23:20 on Sun 8 Jan to 01:28 on Tue 10 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-01-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/bhogi", "festival": "bhogi", "name": "Bhogi", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12791, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-02-12T10:03:51+08:00", "utc": "1933-02-12T02:03:51Z", "ms": -1163973368556.3562 } }, "span": { "of": "transit", "start": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 } }, "kaala": "sunset-day", "days": [ { "local_date": "1933-01-13", "window": { "start": { "local": "1933-01-12T17:29:22+08:00", "utc": "1933-01-12T09:29:22Z", "ms": -1166625038194.325 }, "end": { "local": "1933-01-13T17:30:14+08:00", "utc": "1933-01-13T09:30:14Z", "ms": -1166538586463.5903 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1933-01-14", "window": { "start": { "local": "1933-01-13T17:30:14+08:00", "utc": "1933-01-13T09:30:14Z", "ms": -1166538586463.5903 }, "end": { "local": "1933-01-14T17:31:06+08:00", "utc": "1933-01-14T09:31:06Z", "ms": -1166452134229.8577 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1933-01-14", "days": -1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 21:03 on Fri 13 Jan.", "fact": "1933-01-13T13:03:25Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:30, and the day of the 14th ends at 17:31.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 12791 s" }, { "step": "counted", "text": "Bhogi is kept the day before Pongal: Saturday 14 January is the day taken above.", "fact": "follows: pongal − 1 d" }, { "step": "ruling", "text": "Bhogi, Lu’an, 1933: Friday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "bhogi", "follows": { "festival": "pongal", "days": -1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1933-01-12", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1933-01-12", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Lu’an, Bhogi 1933 falls on Friday 13 January. It is kept the day before Pongal, which falls on Saturday 14 January. The Sun enters Makara at 21:03 on Fri 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from midnight, or counted from sunrise, as in Orissa, it is 12 January.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/makara-sankranti", "festival": "makara-sankranti", "name": "Makara Saṅkrānti", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10595, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-02-12T10:03:51+08:00", "utc": "1933-02-12T02:03:51Z", "ms": -1163973368556.3562 } }, "span": { "of": "transit", "start": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 } }, "kaala": "civil-day", "days": [ { "local_date": "1933-01-13", "window": { "start": { "local": "1933-01-13T00:00:00+08:00", "utc": "1933-01-12T16:00:00Z", "ms": -1166601600000 }, "end": { "local": "1933-01-14T00:00:00+08:00", "utc": "1933-01-13T16:00:00Z", "ms": -1166515200000 } }, "covered_min": 1, "window_min": 1440, "qualifies": true }, { "local_date": "1933-01-14", "window": { "start": { "local": "1933-01-14T00:00:00+08:00", "utc": "1933-01-13T16:00:00Z", "ms": -1166515200000 }, "end": { "local": "1933-01-15T00:00:00+08:00", "utc": "1933-01-14T16:00:00Z", "ms": -1166428800000 } }, "covered_min": 0, "window_min": 1440, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 21:03 on Fri 13 Jan.", "fact": "1933-01-13T13:03:25Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from midnight to midnight, on the clock of Lu’an.", "fact": "civil-day: midnight-to-midnight · Asia/Shanghai" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from midnight. The transit falls on the 13th, not the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from midnight → only-day · margin 10595 s" }, { "step": "ruling", "text": "Makara Saṅkrānti, Lu’an, 1933: Friday 13 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "makara-sankranti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "rashi": "Makara", "day_from": "midnight" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-01-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1933-01-13", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1933-01-14", "statement": "Past sunset, the next day (the Tamil rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } } ], "quote": "In Lu’an, Makara Saṅkrānti 1933 falls on Friday 13 January. The Sun enters Makara at 21:03 on Fri 13 Jan, and the rule counts the day from midnight. By the Tamil rule for the first day of a solar month, which gives a transit after sunset to the next day, it is 14 January.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/pongal", "festival": "pongal", "name": "Pongal", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12791, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-02-12T10:03:51+08:00", "utc": "1933-02-12T02:03:51Z", "ms": -1163973368556.3562 } }, "span": { "of": "transit", "start": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 } }, "kaala": "sunset-day", "days": [ { "local_date": "1933-01-13", "window": { "start": { "local": "1933-01-12T17:29:22+08:00", "utc": "1933-01-12T09:29:22Z", "ms": -1166625038194.325 }, "end": { "local": "1933-01-13T17:30:14+08:00", "utc": "1933-01-13T09:30:14Z", "ms": -1166538586463.5903 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1933-01-14", "window": { "start": { "local": "1933-01-13T17:30:14+08:00", "utc": "1933-01-13T09:30:14Z", "ms": -1166538586463.5903 }, "end": { "local": "1933-01-14T17:31:06+08:00", "utc": "1933-01-14T09:31:06Z", "ms": -1166452134229.8577 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 21:03 on Fri 13 Jan.", "fact": "1933-01-13T13:03:25Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:30, and the day of the 14th ends at 17:31.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 12791 s" }, { "step": "ruling", "text": "Pongal, Lu’an, 1933: Saturday 14 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "pongal", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "not_evaluated": "The rule that heads the solar festivals, the day \"taken to begin from midnight\" (p. 106), is not applied to Pongal. It is kept on the first day of the month of Makara as the Tamil districts count it, a transit after sunset going to the next day (p. 244); the Rashtriya Panchang prints Pongal so.", "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-01-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-14", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1933-01-13", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunrise-day", "local_date": "1933-01-13", "statement": "Counted from sunrise (the Orissa rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Orissa rule: In Orissa the solar months of the Amli and Vilayati eras begin civilly on the same day (sunrise to next sunrise) as the samkranti, irrespective of whether this takes place before or after midnight." } } ], "quote": "In Lu’an, Pongal 1933 falls on Saturday 14 January. The Sun enters Makara at 21:03 on Fri 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from midnight, or counted from sunrise, as in Orissa, it is 13 January.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/mattu-pongal", "festival": "mattu-pongal", "name": "Mattu Pongal", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12791, "anga": { "type": "sankranti", "index": 9, "key": "makara", "name": "Makara", "start": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-02-12T10:03:51+08:00", "utc": "1933-02-12T02:03:51Z", "ms": -1163973368556.3562 } }, "span": { "of": "transit", "start": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 }, "end": { "local": "1933-01-13T21:03:25+08:00", "utc": "1933-01-13T13:03:25Z", "ms": -1166525795406.463 } }, "kaala": "sunset-day", "days": [ { "local_date": "1933-01-13", "window": { "start": { "local": "1933-01-12T17:29:22+08:00", "utc": "1933-01-12T09:29:22Z", "ms": -1166625038194.325 }, "end": { "local": "1933-01-13T17:30:14+08:00", "utc": "1933-01-13T09:30:14Z", "ms": -1166538586463.5903 } }, "covered_min": 0, "window_min": 1441, "qualifies": false }, { "local_date": "1933-01-14", "window": { "start": { "local": "1933-01-13T17:30:14+08:00", "utc": "1933-01-13T09:30:14Z", "ms": -1166538586463.5903 }, "end": { "local": "1933-01-14T17:31:06+08:00", "utc": "1933-01-14T09:31:06Z", "ms": -1166452134229.8577 } }, "covered_min": 1, "window_min": 1441, "qualifies": true } ], "follows": { "festival": "pongal", "name": "Pongal", "local_date": "1933-01-14", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Makara at 21:03 on Fri 13 Jan.", "fact": "1933-01-13T13:03:25Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day is counted from the sunset before it to its own sunset: the day of the 13th ends at 17:30, and the day of the 14th ends at 17:31.", "fact": "sunset-day: sunset-to-sunset · sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from the sunset before it: a transit after sunset belongs to the next day. The transit falls between the sunsets of the 13th and the 14th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunset → only-day · margin 12791 s" }, { "step": "counted", "text": "Mattu Pongal is kept the day after Pongal: Saturday 14 January is the day taken above.", "fact": "follows: pongal + 1 d" }, { "step": "ruling", "text": "Mattu Pongal, Lu’an, 1933: Sunday 15 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "mattu-pongal", "follows": { "festival": "pongal", "days": 1 }, "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Makaradi — Makaradi snana, Magh Bihu (Assam), Tila samkranti, Pongal (S. India), Bhogi (S. India — on the day before Pongal), Mattu Pongal (S. India — on the day after Pongal)." }, { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } ], "rashi": "Makara", "day_from": "sunset" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-15", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1933-01-14", "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": "1933-01-14", "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 Lu’an, Mattu Pongal 1933 falls on Sunday 15 January. It is kept the day after Pongal, which falls on Saturday 14 January. The Sun enters Makara at 21:03 on Fri 13 Jan. The rule counts the day from sunset to sunset, and the transit falls between the sunsets of the 13th and the 14th. Counted from midnight, or counted from sunrise, as in Orissa, it is 14 January.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-01-15", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32996, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-01-15T06:18:39+08:00", "utc": "1933-01-14T22:18:39Z", "ms": -1166406080798.1965 }, "end": { "local": "1933-01-16T06:06:33+08:00", "utc": "1933-01-15T22:06:33Z", "ms": -1166320406907.9846 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-01-15T06:18:39+08:00", "utc": "1933-01-14T22:18:39Z", "ms": -1166406080798.1965 }, "end": { "local": "1933-01-16T06:06:33+08:00", "utc": "1933-01-15T22:06:33Z", "ms": -1166320406907.9846 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-01-14", "window": { "start": { "local": "1933-01-14T19:55:06+08:00", "utc": "1933-01-14T11:55:06Z", "ms": -1166443494442.2751 }, "end": { "local": "1933-01-14T19:55:06+08:00", "utc": "1933-01-14T11:55:06Z", "ms": -1166443494442.2751 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-01-15", "window": { "start": { "local": "1933-01-15T20:56:37+08:00", "utc": "1933-01-15T12:56:37Z", "ms": -1166353403315.211 }, "end": { "local": "1933-01-15T20:56:37+08:00", "utc": "1933-01-15T12:56:37Z", "ms": -1166353403315.211 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 06:19 on Sun 15 Jan to 06:07 on Mon 16 Jan.", "fact": "1933-01-14T22:18:39Z → 1933-01-15T22:06:33Z" }, { "step": "kaala", "text": "Moonrise is at 19:55 on the 14th and 20:57 on the 15th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 14th and is on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 32996 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Sunday 15 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "sankashta-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "not_evaluated": "It is called Aṅgāraka Caturthī when it falls on a Tuesday; the weekday is not tested.", "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-01-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-15", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Sunday 15 January. Caturthī runs from 06:19 on Sun 15 Jan to 06:07 on Mon 16 Jan and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-01-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ekadashi?on=1933-01-22", "festival": "ekadashi", "name": "Ṣaṭtilā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38039, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-01-21T20:39:02+08:00", "utc": "1933-01-21T12:39:02Z", "ms": -1165836058130.918 }, "end": { "local": "1933-01-22T17:56:43+08:00", "utc": "1933-01-22T09:56:43Z", "ms": -1165759397211.6965 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-01-21T20:39:02+08:00", "utc": "1933-01-21T12:39:02Z", "ms": -1165836058130.918 }, "end": { "local": "1933-01-22T17:56:43+08:00", "utc": "1933-01-22T09:56:43Z", "ms": -1165759397211.6965 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-01-22", "window": { "start": { "local": "1933-01-22T07:13:01+08:00", "utc": "1933-01-21T23:13:01Z", "ms": -1165798018662.9297 }, "end": { "local": "1933-01-22T07:13:01+08:00", "utc": "1933-01-21T23:13:01Z", "ms": -1165798018662.9297 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-01-23", "window": { "start": { "local": "1933-01-23T07:12:39+08:00", "utc": "1933-01-22T23:12:39Z", "ms": -1165711641062.6597 }, "end": { "local": "1933-01-23T07:12:39+08:00", "utc": "1933-01-22T23:12:39Z", "ms": -1165711641062.6597 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 20:39 on Sat 21 Jan to 17:57 on Sun 22 Jan.", "fact": "1933-01-21T12:39:02Z → 1933-01-22T09:56:43Z" }, { "step": "kaala", "text": "Sunrise is at 07:13 on the 22nd and 07:13 on the 23rd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 22nd and is not on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 38039 s" }, { "step": "ruling", "text": "Ṣaṭtilā Ekādaśī, Lu’an, 1933: Sunday 22 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": "1933-01-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-22", "confidence": "determinate" } ], "quote": "In Lu’an, Ṣaṭtilā Ekādaśī 1933 falls on Sunday 22 January. Ekādaśī runs from 20:39 on Sat 21 Jan to 17:57 on Sun 22 Jan and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-01-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-01-23", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9101, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-01-23T15:07:31+08:00", "utc": "1933-01-23T07:07:31Z", "ms": -1165683148811.6682 }, "end": { "local": "1933-01-24T12:19:11+08:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-01-23T15:07:31+08:00", "utc": "1933-01-23T07:07:31Z", "ms": -1165683148811.6682 }, "end": { "local": "1933-01-24T12:19:11+08:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-01-23", "window": { "start": { "local": "1933-01-23T17:39:12+08:00", "utc": "1933-01-23T09:39:12Z", "ms": -1165674047743.7083 }, "end": { "local": "1933-01-23T19:27:37+08:00", "utc": "1933-01-23T11:27:37Z", "ms": -1165667543393.9941 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1933-01-24", "window": { "start": { "local": "1933-01-24T17:40:07+08:00", "utc": "1933-01-24T09:40:07Z", "ms": -1165587592576.5146 }, "end": { "local": "1933-01-24T19:28:21+08:00", "utc": "1933-01-24T11:28:21Z", "ms": -1165581099009.6802 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:08 on Mon 23 Jan to 12:19 on Tue 24 Jan.", "fact": "1933-01-23T07:07:31Z → 1933-01-24T04:19:11Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:28 on the 23rd, 17:40–19:28 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 108 of 108 minutes on the 23rd and 0 of 108 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9101 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Monday 23 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": "1933-01-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-23", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Monday 23 January. Trayodaśī runs from 15:08 on Mon 23 Jan to 12:19 on Tue 24 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-01-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shivaratri?on=1933-01-24", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31817, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-01-24T12:19:11+08:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 }, "end": { "local": "1933-01-25T09:40:15+08:00", "utc": "1933-01-25T01:40:15Z", "ms": -1165529984890.249 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-01-24T12:19:11+08:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 }, "end": { "local": "1933-01-25T09:40:15+08:00", "utc": "1933-01-25T01:40:15Z", "ms": -1165529984890.249 } }, "kaala": "nishita", "days": [ { "local_date": "1933-01-23", "window": { "start": { "local": "1933-01-24T00:01:44+08:00", "utc": "1933-01-23T16:01:44Z", "ms": -1165651096432.28 }, "end": { "local": "1933-01-24T00:49:44+08:00", "utc": "1933-01-23T16:49:44Z", "ms": -1165648216432.28 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-01-24", "window": { "start": { "local": "1933-01-25T00:01:58+08:00", "utc": "1933-01-24T16:01:58Z", "ms": -1165564681700.8855 }, "end": { "local": "1933-01-25T00:49:58+08:00", "utc": "1933-01-24T16:49:58Z", "ms": -1165561801700.8855 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:19 on Tue 24 Jan to 09:40 on Wed 25 Jan.", "fact": "1933-01-24T04:19:11Z → 1933-01-25T01:40:15Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:02–00:50 on the 23rd, 00:02–00:50 on the 24th.", "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 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 31817 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Tuesday 24 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": "1933-01-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-24", "confidence": "determinate" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Tuesday 24 January. Caturdaśī runs from 12:19 on Tue 24 Jan to 09:40 on Wed 25 Jan and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-01-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/yama-tarpana", "festival": "yama-tarpana", "name": "Yama Tarpaṇa", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8906, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-01-24T12:19:11+08:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 }, "end": { "local": "1933-01-25T09:40:15+08:00", "utc": "1933-01-25T01:40:15Z", "ms": -1165529984890.249 }, "month": { "amanta": 9, "purnimanta": 10, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-01-24T12:19:11+08:00", "utc": "1933-01-24T04:19:11Z", "ms": -1165606848709.413 }, "end": { "local": "1933-01-25T09:40:15+08:00", "utc": "1933-01-25T01:40:15Z", "ms": -1165529984890.249 } }, "kaala": "arunodaya", "days": [ { "local_date": "1933-01-24", "window": { "start": { "local": "1933-01-24T05:23:51+08:00", "utc": "1933-01-23T21:23:51Z", "ms": -1165631769470.566 }, "end": { "local": "1933-01-24T07:12:15+08:00", "utc": "1933-01-23T23:12:15Z", "ms": -1165625265120.8518 } }, "covered_min": 0, "window_min": 108, "qualifies": false }, { "local_date": "1933-01-25", "window": { "start": { "local": "1933-01-25T05:23:36+08:00", "utc": "1933-01-24T21:23:36Z", "ms": -1165545384392.0908 }, "end": { "local": "1933-01-25T07:11:49+08:00", "utc": "1933-01-24T23:11:49Z", "ms": -1165538890825.2563 } }, "covered_min": 108, "window_min": 108, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 12:19 on Tue 24 Jan to 09:40 on Wed 25 Jan.", "fact": "1933-01-24T04:19:11Z → 1933-01-25T01:40:15Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:24–07:12 on the 24th, 05:24–07:12 on the 25th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 108 minutes on the 24th and 108 of 108 on the 25th.", "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 8906 s" }, { "step": "ruling", "text": "Yama Tarpaṇa, Lu’an, 1933: Wednesday 25 January.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-tarpana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)" } ], "kaala": "arunodaya", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-01-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-25", "confidence": "determinate" } ], "quote": "In Lu’an, Yama Tarpaṇa 1933 falls on Wednesday 25 January. Caturdaśī runs from 12:19 on Tue 24 Jan to 09:40 on Wed 25 Jan and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ganesha-jayanti", "festival": "ganesha-jayanti", "name": "Gaṇeśa Jayantī", "everyday": "Maghi Ganesh Jayanti", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30443, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-01-29T03:29:13+08:00", "utc": "1933-01-28T19:29:13Z", "ms": -1165206647009.8804 }, "end": { "local": "1933-01-30T03:36:04+08:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-01-29T03:29:13+08:00", "utc": "1933-01-28T19:29:13Z", "ms": -1165206647009.8804 }, "end": { "local": "1933-01-30T03:36:04+08:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-01-29", "window": { "start": { "local": "1933-01-29T12:03:17+08:00", "utc": "1933-01-29T04:03:17Z", "ms": -1165175803093.973 }, "end": { "local": "1933-01-29T12:51:17+08:00", "utc": "1933-01-29T04:51:17Z", "ms": -1165172923093.973 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-01-30", "window": { "start": { "local": "1933-01-30T12:03:28+08:00", "utc": "1933-01-30T04:03:28Z", "ms": -1165089392416.916 }, "end": { "local": "1933-01-30T12:51:28+08:00", "utc": "1933-01-30T04:51:28Z", "ms": -1165086512416.916 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:29 on Sun 29 Jan to 03:36 on Mon 30 Jan.", "fact": "1933-01-28T19:29:13Z → 1933-01-29T19:36:04Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 29th, 12:03–12:51 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 48 of 48 minutes on the 29th and 0 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30443 s" }, { "step": "ruling", "text": "Gaṇeśa Jayantī, Lu’an, 1933: Sunday 29 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": "1933-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-29", "confidence": "determinate" } ], "quote": "In Lu’an, Gaṇeśa Jayantī (Maghi Ganesh Jayanti) 1933 falls on Sunday 29 January. Caturthī runs from 03:29 on Sun 29 Jan to 03:36 on Mon 30 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/tila-chaturthi", "festival": "tila-chaturthi", "name": "Tila Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28676, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-01-29T03:29:13+08:00", "utc": "1933-01-28T19:29:13Z", "ms": -1165206647009.8804 }, "end": { "local": "1933-01-30T03:36:04+08:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-01-29T03:29:13+08:00", "utc": "1933-01-28T19:29:13Z", "ms": -1165206647009.8804 }, "end": { "local": "1933-01-30T03:36:04+08:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-01-28", "window": { "start": { "local": "1933-01-28T17:43:48+08:00", "utc": "1933-01-28T09:43:48Z", "ms": -1165241771528.4373 }, "end": { "local": "1933-01-28T19:31:17+08:00", "utc": "1933-01-28T11:31:17Z", "ms": -1165235323302.5513 } }, "covered_min": 0, "window_min": 107, "qualifies": false }, { "local_date": "1933-01-29", "window": { "start": { "local": "1933-01-29T17:44:44+08:00", "utc": "1933-01-29T09:44:44Z", "ms": -1165155316353.6536 }, "end": { "local": "1933-01-29T19:32:00+08:00", "utc": "1933-01-29T11:32:00Z", "ms": -1165148879980.4587 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:29 on Sun 29 Jan to 03:36 on Mon 30 Jan.", "fact": "1933-01-28T19:29:13Z → 1933-01-29T19:36:04Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:44–19:31 on the 28th, 17:45–19:32 on the 29th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during pradoṣa. It covers 0 of 107 minutes on the 28th and 107 of 107 on the 29th.", "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 28676 s" }, { "step": "ruling", "text": "Tila Caturthī, Lu’an, 1933: Sunday 29 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": "1933-01-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-29", "confidence": "determinate" } ], "quote": "In Lu’an, Tila Caturthī 1933 falls on Sunday 29 January. Caturthī runs from 03:29 on Sun 29 Jan to 03:36 on Mon 30 Jan and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/shri-panchami", "festival": "shri-panchami", "name": "Śrī Pañcamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27352, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-01-30T03:36:04+08:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 }, "end": { "local": "1933-01-31T04:27:46+08:00", "utc": "1933-01-30T20:27:46Z", "ms": -1165030334096.2847 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-01-30T03:36:04+08:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 }, "end": { "local": "1933-01-31T04:27:46+08:00", "utc": "1933-01-30T20:27:46Z", "ms": -1165030334096.2847 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-01-30", "window": { "start": { "local": "1933-01-30T12:03:28+08:00", "utc": "1933-01-30T04:03:28Z", "ms": -1165089392416.916 }, "end": { "local": "1933-01-30T12:51:28+08:00", "utc": "1933-01-30T04:51:28Z", "ms": -1165086512416.916 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-01-31", "window": { "start": { "local": "1933-01-31T12:03:37+08:00", "utc": "1933-01-31T04:03:37Z", "ms": -1165002982579.0527 }, "end": { "local": "1933-01-31T12:51:37+08:00", "utc": "1933-01-31T04:51:37Z", "ms": -1165000102579.0527 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:36 on Mon 30 Jan to 04:28 on Tue 31 Jan.", "fact": "1933-01-29T19:36:04Z → 1933-01-30T20:27:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 30th, 12:04–12:52 on the 31st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27352 s" }, { "step": "ruling", "text": "Śrī Pañcamī, Lu’an, 1933: Monday 30 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": "1933-01-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-30", "confidence": "determinate" } ], "quote": "In Lu’an, Śrī Pañcamī 1933 falls on Monday 30 January. Pañcamī runs from 03:36 on Mon 30 Jan to 04:28 on Tue 31 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vasanta-panchami", "festival": "vasanta-panchami", "name": "Vasanta Pañcamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-01-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27352, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-01-30T03:36:04+08:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 }, "end": { "local": "1933-01-31T04:27:46+08:00", "utc": "1933-01-30T20:27:46Z", "ms": -1165030334096.2847 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-01-30T03:36:04+08:00", "utc": "1933-01-29T19:36:04Z", "ms": -1165119835563.5386 }, "end": { "local": "1933-01-31T04:27:46+08:00", "utc": "1933-01-30T20:27:46Z", "ms": -1165030334096.2847 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-01-30", "window": { "start": { "local": "1933-01-30T12:03:28+08:00", "utc": "1933-01-30T04:03:28Z", "ms": -1165089392416.916 }, "end": { "local": "1933-01-30T12:51:28+08:00", "utc": "1933-01-30T04:51:28Z", "ms": -1165086512416.916 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-01-31", "window": { "start": { "local": "1933-01-31T12:03:37+08:00", "utc": "1933-01-31T04:03:37Z", "ms": -1165002982579.0527 }, "end": { "local": "1933-01-31T12:51:37+08:00", "utc": "1933-01-31T04:51:37Z", "ms": -1165000102579.0527 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:36 on Mon 30 Jan to 04:28 on Tue 31 Jan.", "fact": "1933-01-29T19:36:04Z → 1933-01-30T20:27:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 30th, 12:04–12:52 on the 31st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27352 s" }, { "step": "ruling", "text": "Vasanta Pañcamī, Lu’an, 1933: Monday 30 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": "1933-01-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-01-30", "confidence": "determinate" } ], "quote": "In Lu’an, Vasanta Pañcamī 1933 falls on Monday 30 January. Pañcamī runs from 03:36 on Mon 30 Jan to 04:28 on Tue 31 Jan and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ratha-saptami", "festival": "ratha-saptami", "name": "Ratha Saptamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-02-02", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2343, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-02-01T06:00:15+08:00", "utc": "1933-01-31T22:00:15Z", "ms": -1164938384605.5164 }, "end": { "local": "1933-02-02T08:05:13+08:00", "utc": "1933-02-02T00:05:13Z", "ms": -1164844486906.5093 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-02-01T06:00:15+08:00", "utc": "1933-01-31T22:00:15Z", "ms": -1164938384605.5164 }, "end": { "local": "1933-02-02T08:05:13+08:00", "utc": "1933-02-02T00:05:13Z", "ms": -1164844486906.5093 } }, "kaala": "arunodaya", "days": [ { "local_date": "1933-02-01", "window": { "start": { "local": "1933-02-01T05:21:12+08:00", "utc": "1933-01-31T21:21:12Z", "ms": -1164940727716.4875 }, "end": { "local": "1933-02-01T07:08:04+08:00", "utc": "1933-01-31T23:08:04Z", "ms": -1164934315621.5315 } }, "covered_min": 68, "window_min": 107, "qualifies": true }, { "local_date": "1933-02-02", "window": { "start": { "local": "1933-02-02T05:20:46+08:00", "utc": "1933-02-01T21:20:46Z", "ms": -1164854353605.646 }, "end": { "local": "1933-02-02T07:07:26+08:00", "utc": "1933-02-01T23:07:26Z", "ms": -1164847953922.8184 } }, "covered_min": 107, "window_min": 107, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Saptamī runs from 06:00 on Wed 1 Feb to 08:05 on Thu 2 Feb.", "fact": "1933-01-31T22:00:15Z → 1933-02-02T00:05:13Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 05:21–07:08 on the 1st, 05:21–07:07 on the 2nd.", "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 68 of 107 minutes on the 1st and 107 of 107 on the 2nd.", "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 2343 s" }, { "step": "ruling", "text": "Ratha Saptamī, Lu’an, 1933: Thursday 2 February.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1933-02-02", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-02", "confidence": "boundary" } ], "quote": "In Lu’an, Ratha Saptamī 1933 falls on Thursday 2 February. Saptamī runs from 06:00 on Wed 1 Feb to 08:05 on Thu 2 Feb and covers all of aruṇodaya that dawn. It also reaches the previous dawn for 68 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/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-02-06", "festival": "ekadashi", "name": "Jayā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-02-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30178, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-02-05T15:28:20+08:00", "utc": "1933-02-05T07:28:20Z", "ms": -1164558699580.186 }, "end": { "local": "1933-02-06T17:34:59+08:00", "utc": "1933-02-06T09:34:59Z", "ms": -1164464700908.1965 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-02-05T15:28:20+08:00", "utc": "1933-02-05T07:28:20Z", "ms": -1164558699580.186 }, "end": { "local": "1933-02-06T17:34:59+08:00", "utc": "1933-02-06T09:34:59Z", "ms": -1164464700908.1965 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-02-05", "window": { "start": { "local": "1933-02-05T07:05:22+08:00", "utc": "1933-02-04T23:05:22Z", "ms": -1164588877602.4968 }, "end": { "local": "1933-02-05T07:05:22+08:00", "utc": "1933-02-04T23:05:22Z", "ms": -1164588877602.4968 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-02-06", "window": { "start": { "local": "1933-02-06T07:04:38+08:00", "utc": "1933-02-05T23:04:38Z", "ms": -1164502521666.6829 }, "end": { "local": "1933-02-06T07:04:38+08:00", "utc": "1933-02-05T23:04:38Z", "ms": -1164502521666.6829 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:28 on Sun 5 Feb to 17:35 on Mon 6 Feb.", "fact": "1933-02-05T07:28:20Z → 1933-02-06T09:34:59Z" }, { "step": "kaala", "text": "Sunrise is at 07:05 on the 5th and 07:05 on the 6th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 5th and is on the 6th.", "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 30178 s" }, { "step": "ruling", "text": "Jayā Ekādaśī, Lu’an, 1933: Monday 6 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": "1933-02-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-06", "confidence": "determinate" } ], "quote": "In Lu’an, Jayā Ekādaśī 1933 falls on Monday 6 February. Ekādaśī runs from 15:28 on Sun 5 Feb to 17:35 on Mon 6 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-02-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/bhishma-dvadashi", "festival": "bhishma-dvadashi", "name": "Bhīṣma Dvādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-02-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16960, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-02-06T17:34:59+08:00", "utc": "1933-02-06T09:34:59Z", "ms": -1164464700908.1965 }, "end": { "local": "1933-02-07T19:14:37+08:00", "utc": "1933-02-07T11:14:37Z", "ms": -1164372322668.3667 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-02-06T17:34:59+08:00", "utc": "1933-02-06T09:34:59Z", "ms": -1164464700908.1965 }, "end": { "local": "1933-02-07T19:14:37+08:00", "utc": "1933-02-07T11:14:37Z", "ms": -1164372322668.3667 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-02-06", "window": { "start": { "local": "1933-02-06T12:04:19+08:00", "utc": "1933-02-06T04:04:19Z", "ms": -1164484541197.19 }, "end": { "local": "1933-02-06T12:52:19+08:00", "utc": "1933-02-06T04:52:19Z", "ms": -1164481661197.19 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-02-07", "window": { "start": { "local": "1933-02-07T12:04:23+08:00", "utc": "1933-02-07T04:04:23Z", "ms": -1164398137213.6199 }, "end": { "local": "1933-02-07T12:52:23+08:00", "utc": "1933-02-07T04:52:23Z", "ms": -1164395257213.6199 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 17:35 on Mon 6 Feb to 19:15 on Tue 7 Feb.", "fact": "1933-02-06T09:34:59Z → 1933-02-07T11:14:37Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 6th, 12:04–12:52 on the 7th.", "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 6th and 48 of 48 on the 7th.", "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 16960 s" }, { "step": "ruling", "text": "Bhīṣma Dvādaśī, Lu’an, 1933: Tuesday 7 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": "1933-02-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-07", "confidence": "determinate" } ], "quote": "In Lu’an, Bhīṣma Dvādaśī 1933 falls on Tuesday 7 February. Dvādaśī runs from 17:35 on Mon 6 Feb to 19:15 on Tue 7 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/pradosha-vrata?on=1933-02-08", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-02-08", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1417, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-02-07T19:14:37+08:00", "utc": "1933-02-07T11:14:37Z", "ms": -1164372322668.3667 }, "end": { "local": "1933-02-08T20:22:34+08:00", "utc": "1933-02-08T12:22:34Z", "ms": -1164281845732.9475 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-02-07T19:14:37+08:00", "utc": "1933-02-07T11:14:37Z", "ms": -1164372322668.3667 }, "end": { "local": "1933-02-08T20:22:34+08:00", "utc": "1933-02-08T12:22:34Z", "ms": -1164281845732.9475 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-02-07", "window": { "start": { "local": "1933-02-07T17:52:53+08:00", "utc": "1933-02-07T09:52:53Z", "ms": -1164377227323.3667 }, "end": { "local": "1933-02-07T19:38:14+08:00", "utc": "1933-02-07T11:38:14Z", "ms": -1164370905531.655 } }, "covered_min": 24, "window_min": 105, "qualifies": true }, { "local_date": "1933-02-08", "window": { "start": { "local": "1933-02-08T17:53:46+08:00", "utc": "1933-02-08T09:53:46Z", "ms": -1164290774207.271 }, "end": { "local": "1933-02-08T19:38:54+08:00", "utc": "1933-02-08T11:38:54Z", "ms": -1164284465910.6353 } }, "covered_min": 105, "window_min": 105, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:15 on Tue 7 Feb to 20:23 on Wed 8 Feb.", "fact": "1933-02-07T11:14:37Z → 1933-02-08T12:22:34Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:53–19:38 on the 7th, 17:54–19:39 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 24 of 105 minutes on the 7th and 105 of 105 on the 8th.", "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 1417 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Wednesday 8 February.", "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": "1933-02-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-08", "confidence": "boundary" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Wednesday 8 February. Trayodaśī runs from 19:15 on Tue 7 Feb to 20:23 on Wed 8 Feb and covers all of pradoṣa that evening. It also reaches the previous evening for 24 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/lu-an/festivals/1933/pradosha-vrata?on=1933-02-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/maghi-purnima", "festival": "maghi-purnima", "name": "Māghī Pūrṇimā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-02-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29099, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-02-09T20:57:27+08:00", "utc": "1933-02-09T12:57:27Z", "ms": -1164193352614.192 }, "end": { "local": "1933-02-10T21:00:26+08:00", "utc": "1933-02-10T13:00:26Z", "ms": -1164106774261.9902 }, "month": { "amanta": 10, "purnimanta": 10, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Māgha" } }, "span": { "of": "tithi", "start": { "local": "1933-02-09T20:57:27+08:00", "utc": "1933-02-09T12:57:27Z", "ms": -1164193352614.192 }, "end": { "local": "1933-02-10T21:00:26+08:00", "utc": "1933-02-10T13:00:26Z", "ms": -1164106774261.9902 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-02-09", "window": { "start": { "local": "1933-02-09T12:04:28+08:00", "utc": "1933-02-09T04:04:28Z", "ms": -1164225331686.5327 }, "end": { "local": "1933-02-09T12:52:28+08:00", "utc": "1933-02-09T04:52:28Z", "ms": -1164222451686.5327 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-02-10", "window": { "start": { "local": "1933-02-10T12:04:30+08:00", "utc": "1933-02-10T04:04:30Z", "ms": -1164138930123.746 }, "end": { "local": "1933-02-10T12:52:30+08:00", "utc": "1933-02-10T04:52:30Z", "ms": -1164136050123.746 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 20:57 on Thu 9 Feb to 21:00 on Fri 10 Feb.", "fact": "1933-02-09T12:57:27Z → 1933-02-10T13:00:26Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 9th, 12:04–12:52 on the 10th.", "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 9th and 48 of 48 on the 10th.", "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 29099 s" }, { "step": "ruling", "text": "Māghī Pūrṇimā, Lu’an, 1933: Friday 10 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": "1933-02-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-10", "confidence": "determinate" } ], "quote": "In Lu’an, Māghī Pūrṇimā 1933 falls on Friday 10 February. Pūrṇimā runs from 20:57 on Thu 9 Feb to 21:00 on Fri 10 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-02-13", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-02-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8600, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-02-13T18:29:30+08:00", "utc": "1933-02-13T10:29:30Z", "ms": -1163856630165.2068 }, "end": { "local": "1933-02-14T16:58:34+08:00", "utc": "1933-02-14T08:58:34Z", "ms": -1163775685772.5264 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1933-02-13T18:29:30+08:00", "utc": "1933-02-13T10:29:30Z", "ms": -1163856630165.2068 }, "end": { "local": "1933-02-14T16:58:34+08:00", "utc": "1933-02-14T08:58:34Z", "ms": -1163775685772.5264 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-02-13", "window": { "start": { "local": "1933-02-13T20:52:50+08:00", "utc": "1933-02-13T12:52:50Z", "ms": -1163848030150.0845 }, "end": { "local": "1933-02-13T20:52:50+08:00", "utc": "1933-02-13T12:52:50Z", "ms": -1163848030150.0845 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-02-14", "window": { "start": { "local": "1933-02-14T21:57:19+08:00", "utc": "1933-02-14T13:57:19Z", "ms": -1163757760542.866 }, "end": { "local": "1933-02-14T21:57:19+08:00", "utc": "1933-02-14T13:57:19Z", "ms": -1163757760542.866 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:29 on Mon 13 Feb to 16:59 on Tue 14 Feb.", "fact": "1933-02-13T10:29:30Z → 1933-02-14T08:58:34Z" }, { "step": "kaala", "text": "Moonrise is at 20:53 on the 13th and 21:57 on the 14th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 13th and is not on the 14th.", "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 8600 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Monday 13 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": "1933-02-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-13", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Monday 13 February. Caturthī runs from 18:29 on Mon 13 Feb to 16:59 on Tue 14 Feb and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-02-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ekadashi?on=1933-02-20", "festival": "ekadashi", "name": "Vijayā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-02-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7880, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-02-20T04:40:51+08:00", "utc": "1933-02-19T20:40:51Z", "ms": -1163301549238.442 }, "end": { "local": "1933-02-21T02:35:40+08:00", "utc": "1933-02-20T18:35:40Z", "ms": -1163222659863.3252 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1933-02-20T04:40:51+08:00", "utc": "1933-02-19T20:40:51Z", "ms": -1163301549238.442 }, "end": { "local": "1933-02-21T02:35:40+08:00", "utc": "1933-02-20T18:35:40Z", "ms": -1163222659863.3252 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-02-20", "window": { "start": { "local": "1933-02-20T06:52:11+08:00", "utc": "1933-02-19T22:52:11Z", "ms": -1163293669190.4136 }, "end": { "local": "1933-02-20T06:52:11+08:00", "utc": "1933-02-19T22:52:11Z", "ms": -1163293669190.4136 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-02-21", "window": { "start": { "local": "1933-02-21T06:51:09+08:00", "utc": "1933-02-20T22:51:09Z", "ms": -1163207330704.0051 }, "end": { "local": "1933-02-21T06:51:09+08:00", "utc": "1933-02-20T22:51:09Z", "ms": -1163207330704.0051 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 04:41 on Mon 20 Feb to 02:36 on Tue 21 Feb.", "fact": "1933-02-19T20:40:51Z → 1933-02-20T18:35:40Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 20th and 06:51 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 20th and is not on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7880 s" }, { "step": "ruling", "text": "Vijayā Ekādaśī, Lu’an, 1933: Monday 20 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": "1933-02-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-20", "confidence": "determinate" } ], "quote": "In Lu’an, Vijayā Ekādaśī 1933 falls on Monday 20 February. Ekādaśī runs from 04:41 on Mon 20 Feb to 02:36 on Tue 21 Feb and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-02-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/maha-shivaratri", "festival": "maha-shivaratri", "name": "Mahāśivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3823, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-02-22T22:59:36+08:00", "utc": "1933-02-22T14:59:36Z", "ms": -1163062823663.7393 }, "end": { "local": "1933-02-23T21:39:01+08:00", "utc": "1933-02-23T13:39:01Z", "ms": -1162981258694.5898 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1933-02-22T22:59:36+08:00", "utc": "1933-02-22T14:59:36Z", "ms": -1163062823663.7393 }, "end": { "local": "1933-02-23T21:39:01+08:00", "utc": "1933-02-23T13:39:01Z", "ms": -1162981258694.5898 } }, "kaala": "nishita", "days": [ { "local_date": "1933-02-22", "window": { "start": { "local": "1933-02-23T00:03:20+08:00", "utc": "1933-02-22T16:03:20Z", "ms": -1163059000478.0796 }, "end": { "local": "1933-02-23T00:51:20+08:00", "utc": "1933-02-22T16:51:20Z", "ms": -1163056120478.0796 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-02-23", "window": { "start": { "local": "1933-02-24T00:03:11+08:00", "utc": "1933-02-23T16:03:11Z", "ms": -1162972608523.7134 }, "end": { "local": "1933-02-24T00:51:11+08:00", "utc": "1933-02-23T16:51:11Z", "ms": -1162969728523.7134 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:00 on Wed 22 Feb to 21:39 on Thu 23 Feb.", "fact": "1933-02-22T14:59:36Z → 1933-02-23T13:39:01Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 00:03–00:51 on the 22nd, 00:03–00:51 on the 23rd.", "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 22nd and 0 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: disputed → only-day · margin 3823 s" }, { "step": "ruling", "text": "Mahāśivarātri, Lu’an, 1933: Wednesday 22 February.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "maha-shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day" } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "disputed", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-22", "confidence": "determinate" } ], "quote": "In Lu’an, Mahāśivarātri 1933 falls on Wednesday 22 February. Caturdaśī runs from 23:00 on Wed 22 Feb to 21:39 on Thu 23 Feb and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/pradosha-vrata?on=1933-02-22", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-02-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11533, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-02-22T00:40:16+08:00", "utc": "1933-02-21T16:40:16Z", "ms": -1163143184492.325 }, "end": { "local": "1933-02-22T22:59:36+08:00", "utc": "1933-02-22T14:59:36Z", "ms": -1163062823663.7393 }, "month": { "amanta": 10, "purnimanta": 11, "adhika": false, "amanta_name": "Māgha", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1933-02-22T00:40:16+08:00", "utc": "1933-02-21T16:40:16Z", "ms": -1163143184492.325 }, "end": { "local": "1933-02-22T22:59:36+08:00", "utc": "1933-02-22T14:59:36Z", "ms": -1163062823663.7393 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-02-21", "window": { "start": { "local": "1933-02-21T18:04:47+08:00", "utc": "1933-02-21T10:04:47Z", "ms": -1163166912954.8635 }, "end": { "local": "1933-02-21T19:46:50+08:00", "utc": "1933-02-21T11:46:50Z", "ms": -1163160790313.2422 } }, "covered_min": 0, "window_min": 102, "qualifies": false }, { "local_date": "1933-02-22", "window": { "start": { "local": "1933-02-22T18:05:36+08:00", "utc": "1933-02-22T10:05:36Z", "ms": -1163080464476.9868 }, "end": { "local": "1933-02-22T19:47:23+08:00", "utc": "1933-02-22T11:47:23Z", "ms": -1163074356743.9448 } }, "covered_min": 102, "window_min": 102, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:40 on Wed 22 Feb to 23:00 on Wed 22 Feb.", "fact": "1933-02-21T16:40:16Z → 1933-02-22T14:59:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:05–19:47 on the 21st, 18:06–19:47 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 102 minutes on the 21st and 102 of 102 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11533 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Wednesday 22 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": "1933-02-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-22", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Wednesday 22 February. Trayodaśī runs from 00:40 on Wed 22 Feb to 23:00 on Wed 22 Feb and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-02-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-02-28", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-02-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30132, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-02-27T21:13:19+08:00", "utc": "1933-02-27T13:13:19Z", "ms": -1162637200857.3093 }, "end": { "local": "1933-02-28T22:33:55+08:00", "utc": "1933-02-28T14:33:55Z", "ms": -1162545965031.925 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1933-02-27T21:13:19+08:00", "utc": "1933-02-27T13:13:19Z", "ms": -1162637200857.3093 }, "end": { "local": "1933-02-28T22:33:55+08:00", "utc": "1933-02-28T14:33:55Z", "ms": -1162545965031.925 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-02-27", "window": { "start": { "local": "1933-02-27T12:03:07+08:00", "utc": "1933-02-27T04:03:07Z", "ms": -1162670212917.6655 }, "end": { "local": "1933-02-27T12:51:07+08:00", "utc": "1933-02-27T04:51:07Z", "ms": -1162667332917.6655 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-02-28", "window": { "start": { "local": "1933-02-28T12:02:57+08:00", "utc": "1933-02-28T04:02:57Z", "ms": -1162583823489.7935 }, "end": { "local": "1933-02-28T12:50:57+08:00", "utc": "1933-02-28T04:50:57Z", "ms": -1162580943489.7935 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:13 on Mon 27 Feb to 22:34 on Tue 28 Feb.", "fact": "1933-02-27T13:13:19Z → 1933-02-28T14:33:55Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 27th, 12:03–12:51 on the 28th.", "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 27th and 48 of 48 on the 28th.", "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 30132 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Lu’an, 1933: Tuesday 28 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": "1933-02-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-02-28", "confidence": "determinate" } ], "quote": "In Lu’an, Vināyaka Caturthī 1933 falls on Tuesday 28 February. Caturthī runs from 21:13 on Mon 27 Feb to 22:34 on Tue 28 Feb and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-02-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ekadashi?on=1933-03-08", "festival": "ekadashi", "name": "Āmalakī Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17882, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-03-07T11:33:25+08:00", "utc": "1933-03-07T03:33:25Z", "ms": -1161980794652.517 }, "end": { "local": "1933-03-08T12:43:38+08:00", "utc": "1933-03-08T04:43:38Z", "ms": -1161890181907.5618 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1933-03-07T11:33:25+08:00", "utc": "1933-03-07T03:33:25Z", "ms": -1161980794652.517 }, "end": { "local": "1933-03-08T12:43:38+08:00", "utc": "1933-03-08T04:43:38Z", "ms": -1161890181907.5618 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-03-07", "window": { "start": { "local": "1933-03-07T06:35:23+08:00", "utc": "1933-03-06T22:35:23Z", "ms": -1161998676509.6738 }, "end": { "local": "1933-03-07T06:35:23+08:00", "utc": "1933-03-06T22:35:23Z", "ms": -1161998676509.6738 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-03-08", "window": { "start": { "local": "1933-03-08T06:34:11+08:00", "utc": "1933-03-07T22:34:11Z", "ms": -1161912348970.0488 }, "end": { "local": "1933-03-08T06:34:11+08:00", "utc": "1933-03-07T22:34:11Z", "ms": -1161912348970.0488 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 11:33 on Tue 7 Mar to 12:44 on Wed 8 Mar.", "fact": "1933-03-07T03:33:25Z → 1933-03-08T04:43:38Z" }, { "step": "kaala", "text": "Sunrise is at 06:35 on the 7th and 06:34 on the 8th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 7th and is 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 17882 s" }, { "step": "ruling", "text": "Āmalakī Ekādaśī, Lu’an, 1933: Wednesday 8 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": "1933-03-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-08", "confidence": "determinate" } ], "quote": "In Lu’an, Āmalakī Ekādaśī 1933 falls on Wednesday 8 March. Ekādaśī runs from 11:33 on Tue 7 Mar to 12:44 on Wed 8 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-03-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-03-09", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18210, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-03-09T13:13:30+08:00", "utc": "1933-03-09T05:13:30Z", "ms": -1161801990369.083 }, "end": { "local": "1933-03-10T13:01:55+08:00", "utc": "1933-03-10T05:01:55Z", "ms": -1161716285262.5164 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1933-03-09T13:13:30+08:00", "utc": "1933-03-09T05:13:30Z", "ms": -1161801990369.083 }, "end": { "local": "1933-03-10T13:01:55+08:00", "utc": "1933-03-10T05:01:55Z", "ms": -1161716285262.5164 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-03-09", "window": { "start": { "local": "1933-03-09T18:16:59+08:00", "utc": "1933-03-09T10:16:59Z", "ms": -1161783780579.8704 }, "end": { "local": "1933-03-09T19:54:57+08:00", "utc": "1933-03-09T11:54:57Z", "ms": -1161777902548.3315 } }, "covered_min": 98, "window_min": 98, "qualifies": true }, { "local_date": "1933-03-10", "window": { "start": { "local": "1933-03-10T18:17:42+08:00", "utc": "1933-03-10T10:17:42Z", "ms": -1161697337653.8938 }, "end": { "local": "1933-03-10T19:55:25+08:00", "utc": "1933-03-10T11:55:25Z", "ms": -1161691475192.6794 } }, "covered_min": 0, "window_min": 98, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 13:13 on Thu 9 Mar to 13:02 on Fri 10 Mar.", "fact": "1933-03-09T05:13:30Z → 1933-03-10T05:01:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:17–19:55 on the 9th, 18:18–19:55 on the 10th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 98 of 98 minutes on the 9th and 0 of 98 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18210 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Thursday 9 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": "1933-03-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-09", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Thursday 9 March. Trayodaśī runs from 13:13 on Thu 9 Mar to 13:02 on Fri 10 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-03-09", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/holika-dahana", "festival": "holika-dahana", "name": "Holikā Dahana", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13546, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-03-11T12:11:04+08:00", "utc": "1933-03-11T04:11:04Z", "ms": -1161632935612.822 }, "end": { "local": "1933-03-12T10:45:36+08:00", "utc": "1933-03-12T02:45:36Z", "ms": -1161551663861.571 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1933-03-11T12:11:04+08:00", "utc": "1933-03-11T04:11:04Z", "ms": -1161632935612.822 }, "end": { "local": "1933-03-12T10:45:36+08:00", "utc": "1933-03-12T02:45:36Z", "ms": -1161551663861.571 } }, "kaala": "sayahna", "days": [ { "local_date": "1933-03-11", "window": { "start": { "local": "1933-03-11T15:56:50+08:00", "utc": "1933-03-11T07:56:50Z", "ms": -1161619389841.5312 }, "end": { "local": "1933-03-11T18:18:25+08:00", "utc": "1933-03-11T10:18:25Z", "ms": -1161610895003.2173 } }, "covered_min": 142, "window_min": 142, "qualifies": true }, { "local_date": "1933-03-12", "window": { "start": { "local": "1933-03-12T15:57:09+08:00", "utc": "1933-03-12T07:57:09Z", "ms": -1161532970779.5352 }, "end": { "local": "1933-03-12T18:19:07+08:00", "utc": "1933-03-12T10:19:07Z", "ms": -1161524452612.5007 } }, "covered_min": 0, "window_min": 142, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 12:11 on Sat 11 Mar to 10:46 on Sun 12 Mar.", "fact": "1933-03-11T04:11:04Z → 1933-03-12T02:45:36Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:57–18:18 on the 11th, 15:57–18:19 on the 12th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 142 of 142 minutes on the 11th and 0 of 142 on the 12th.", "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 13546 s" }, { "step": "ruling", "text": "Holikā Dahana, Lu’an, 1933: Saturday 11 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": "1933-03-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-11", "confidence": "determinate" } ], "quote": "In Lu’an, Holikā Dahana 1933 falls on Saturday 11 March. Pūrṇimā runs from 12:11 on Sat 11 Mar to 10:46 on Sun 12 Mar and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/holi", "festival": "holi", "name": "Holī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13546, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-03-11T12:11:04+08:00", "utc": "1933-03-11T04:11:04Z", "ms": -1161632935612.822 }, "end": { "local": "1933-03-12T10:45:36+08:00", "utc": "1933-03-12T02:45:36Z", "ms": -1161551663861.571 }, "month": { "amanta": 11, "purnimanta": 11, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Phālguna" } }, "span": { "of": "tithi", "start": { "local": "1933-03-11T12:11:04+08:00", "utc": "1933-03-11T04:11:04Z", "ms": -1161632935612.822 }, "end": { "local": "1933-03-12T10:45:36+08:00", "utc": "1933-03-12T02:45:36Z", "ms": -1161551663861.571 } }, "kaala": "sayahna", "days": [ { "local_date": "1933-03-11", "window": { "start": { "local": "1933-03-11T15:56:50+08:00", "utc": "1933-03-11T07:56:50Z", "ms": -1161619389841.5312 }, "end": { "local": "1933-03-11T18:18:25+08:00", "utc": "1933-03-11T10:18:25Z", "ms": -1161610895003.2173 } }, "covered_min": 142, "window_min": 142, "qualifies": true }, { "local_date": "1933-03-12", "window": { "start": { "local": "1933-03-12T15:57:09+08:00", "utc": "1933-03-12T07:57:09Z", "ms": -1161532970779.5352 }, "end": { "local": "1933-03-12T18:19:07+08:00", "utc": "1933-03-12T10:19:07Z", "ms": -1161524452612.5007 } }, "covered_min": 0, "window_min": 142, "qualifies": false } ], "follows": { "festival": "holika-dahana", "name": "Holikā Dahana", "local_date": "1933-03-11", "days": 1 }, "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 12:11 on Sat 11 Mar to 10:46 on Sun 12 Mar.", "fact": "1933-03-11T04:11:04Z → 1933-03-12T02:45:36Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 15:57–18:18 on the 11th, 15:57–18:19 on the 12th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 142 of 142 minutes on the 11th and 0 of 142 on the 12th.", "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 13546 s" }, { "step": "counted", "text": "Holī is kept the day after Holikā Dahana: Saturday 11 March is the day taken above.", "fact": "follows: holika-dahana + 1 d" }, { "step": "ruling", "text": "Holī, Lu’an, 1933: Sunday 12 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": "1933-03-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-12", "confidence": "determinate" } ], "quote": "In Lu’an, Holī 1933 falls on Sunday 12 March. It is kept the day after Holikā Dahana, which falls on Saturday 11 March. Pūrṇimā runs from 12:11 on Sat 11 Mar to 10:46 on Sun 12 Mar and covers all of sāyāhna on the 11th.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vasantotsava", "festival": "vasantotsava", "name": "Vasantotsava", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8622, "anga": { "type": "tithi", "index": 15, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-03-12T10:45:36+08:00", "utc": "1933-03-12T02:45:36Z", "ms": -1161551663861.571 }, "end": { "local": "1933-03-13T08:51:44+08:00", "utc": "1933-03-13T00:51:44Z", "ms": -1161472096037.7244 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-12T10:45:36+08:00", "utc": "1933-03-12T02:45:36Z", "ms": -1161551663861.571 }, "end": { "local": "1933-03-13T08:51:44+08:00", "utc": "1933-03-13T00:51:44Z", "ms": -1161472096037.7244 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-03-12", "window": { "start": { "local": "1933-03-12T06:29:17+08:00", "utc": "1933-03-11T22:29:17Z", "ms": -1161567043447.6733 }, "end": { "local": "1933-03-12T06:29:17+08:00", "utc": "1933-03-11T22:29:17Z", "ms": -1161567043447.6733 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-03-13", "window": { "start": { "local": "1933-03-13T06:28:02+08:00", "utc": "1933-03-12T22:28:02Z", "ms": -1161480718070.6035 }, "end": { "local": "1933-03-13T06:28:02+08:00", "utc": "1933-03-12T22:28:02Z", "ms": -1161480718070.6035 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 10:46 on Sun 12 Mar to 08:52 on Mon 13 Mar.", "fact": "1933-03-12T02:45:36Z → 1933-03-13T00:51:44Z" }, { "step": "kaala", "text": "Sunrise is at 06:29 on the 12th and 06:28 on the 13th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be current at sunrise. It is not on the 12th and is on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 8622 s" }, { "step": "ruling", "text": "Vasantotsava, Lu’an, 1933: Monday 13 March.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vasantotsava", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 105", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "sunrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-03-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-13", "confidence": "determinate" } ], "quote": "In Lu’an, Vasantotsava 1933 falls on Monday 13 March. Pratipadā runs from 10:46 on Sun 12 Mar to 08:52 on Mon 13 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-03-15", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12570, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-03-15T04:07:33+08:00", "utc": "1933-03-14T20:07:33Z", "ms": -1161316347180.7822 }, "end": { "local": "1933-03-16T01:31:53+08:00", "utc": "1933-03-15T17:31:53Z", "ms": -1161239286734.9985 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-15T04:07:33+08:00", "utc": "1933-03-14T20:07:33Z", "ms": -1161316347180.7822 }, "end": { "local": "1933-03-16T01:31:53+08:00", "utc": "1933-03-15T17:31:53Z", "ms": -1161239286734.9985 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-03-14", "window": { "start": { "local": "1933-03-14T20:52:03+08:00", "utc": "1933-03-14T12:52:03Z", "ms": -1161342477049.672 }, "end": { "local": "1933-03-14T20:52:03+08:00", "utc": "1933-03-14T12:52:03Z", "ms": -1161342477049.672 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-03-15", "window": { "start": { "local": "1933-03-15T22:02:23+08:00", "utc": "1933-03-15T14:02:23Z", "ms": -1161251856855.6533 }, "end": { "local": "1933-03-15T22:02:23+08:00", "utc": "1933-03-15T14:02:23Z", "ms": -1161251856855.6533 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 04:08 on Wed 15 Mar to 01:32 on Thu 16 Mar.", "fact": "1933-03-14T20:07:33Z → 1933-03-15T17:31:53Z" }, { "step": "kaala", "text": "Moonrise is at 20:52 on the 14th and 22:02 on the 15th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 14th and is on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 12570 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Wednesday 15 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": "1933-03-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-15", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Wednesday 15 March. Caturthī runs from 04:08 on Wed 15 Mar to 01:32 on Thu 16 Mar and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-03-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shitalashtami", "festival": "shitalashtami", "name": "Śītalāṣṭamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11905, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-03-18T18:08:17+08:00", "utc": "1933-03-18T10:08:17Z", "ms": -1161006703134.166 }, "end": { "local": "1933-03-19T16:04:38+08:00", "utc": "1933-03-19T08:04:38Z", "ms": -1160927721623.9778 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-18T18:08:17+08:00", "utc": "1933-03-18T10:08:17Z", "ms": -1161006703134.166 }, "end": { "local": "1933-03-19T16:04:38+08:00", "utc": "1933-03-19T08:04:38Z", "ms": -1160927721623.9778 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-18", "window": { "start": { "local": "1933-03-18T11:58:31+08:00", "utc": "1933-03-18T03:58:31Z", "ms": -1161028889207.2683 }, "end": { "local": "1933-03-18T12:46:31+08:00", "utc": "1933-03-18T04:46:31Z", "ms": -1161026009207.2683 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-03-19", "window": { "start": { "local": "1933-03-19T11:58:13+08:00", "utc": "1933-03-19T03:58:13Z", "ms": -1160942506783.4985 }, "end": { "local": "1933-03-19T12:46:13+08:00", "utc": "1933-03-19T04:46:13Z", "ms": -1160939626783.4985 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 18:08 on Sat 18 Mar to 16:05 on Sun 19 Mar.", "fact": "1933-03-18T10:08:17Z → 1933-03-19T08:04:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 18th, 11:58–12:46 on the 19th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 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. 105" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11905 s" }, { "step": "ruling", "text": "Śītalāṣṭamī, Lu’an, 1933: Sunday 19 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": "1933-03-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-19", "confidence": "determinate" } ], "quote": "In Lu’an, Śītalāṣṭamī 1933 falls on Sunday 19 March. Aṣṭamī runs from 18:08 on Sat 18 Mar to 16:05 on Sun 19 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-03-22", "festival": "ekadashi", "name": "Pāpamocanī Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19850, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-03-21T12:52:34+08:00", "utc": "1933-03-21T04:52:34Z", "ms": -1160766446278.9058 }, "end": { "local": "1933-03-22T11:47:29+08:00", "utc": "1933-03-22T03:47:29Z", "ms": -1160683950860.0566 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-21T12:52:34+08:00", "utc": "1933-03-21T04:52:34Z", "ms": -1160766446278.9058 }, "end": { "local": "1933-03-22T11:47:29+08:00", "utc": "1933-03-22T03:47:29Z", "ms": -1160683950860.0566 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-03-21", "window": { "start": { "local": "1933-03-21T06:17:55+08:00", "utc": "1933-03-20T22:17:55Z", "ms": -1160790124629.7551 }, "end": { "local": "1933-03-21T06:17:55+08:00", "utc": "1933-03-20T22:17:55Z", "ms": -1160790124629.7551 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-03-22", "window": { "start": { "local": "1933-03-22T06:16:39+08:00", "utc": "1933-03-21T22:16:39Z", "ms": -1160703801192.7578 }, "end": { "local": "1933-03-22T06:16:39+08:00", "utc": "1933-03-21T22:16:39Z", "ms": -1160703801192.7578 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:53 on Tue 21 Mar to 11:47 on Wed 22 Mar.", "fact": "1933-03-21T04:52:34Z → 1933-03-22T03:47:29Z" }, { "step": "kaala", "text": "Sunrise is at 06:18 on the 21st and 06:17 on the 22nd.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 21st and is on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 19850 s" }, { "step": "ruling", "text": "Pāpamocanī Ekādaśī, Lu’an, 1933: Wednesday 22 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": "1933-03-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-22", "confidence": "determinate" } ], "quote": "In Lu’an, Pāpamocanī Ekādaśī 1933 falls on Wednesday 22 March. Ekādaśī runs from 12:53 on Tue 21 Mar to 11:47 on Wed 22 Mar and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-03-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-03-23", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26525, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-03-23T11:04:36+08:00", "utc": "1933-03-23T03:04:36Z", "ms": -1160600124351.2537 }, "end": { "local": "1933-03-24T10:44:57+08:00", "utc": "1933-03-24T02:44:57Z", "ms": -1160514902805.102 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-23T11:04:36+08:00", "utc": "1933-03-23T03:04:36Z", "ms": -1160600124351.2537 }, "end": { "local": "1933-03-24T10:44:57+08:00", "utc": "1933-03-24T02:44:57Z", "ms": -1160514902805.102 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-03-23", "window": { "start": { "local": "1933-03-23T18:26:41+08:00", "utc": "1933-03-23T10:26:41Z", "ms": -1160573598895.9136 }, "end": { "local": "1933-03-23T20:01:00+08:00", "utc": "1933-03-23T12:01:00Z", "ms": -1160567939643.3518 } }, "covered_min": 94, "window_min": 94, "qualifies": true }, { "local_date": "1933-03-24", "window": { "start": { "local": "1933-03-24T18:27:22+08:00", "utc": "1933-03-24T10:27:22Z", "ms": -1160487158461.3623 }, "end": { "local": "1933-03-24T20:01:25+08:00", "utc": "1933-03-24T12:01:25Z", "ms": -1160481514825.7964 } }, "covered_min": 0, "window_min": 94, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:05 on Thu 23 Mar to 10:45 on Fri 24 Mar.", "fact": "1933-03-23T03:04:36Z → 1933-03-24T02:44:57Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:27–20:01 on the 23rd, 18:27–20:01 on the 24th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 94 of 94 minutes on the 23rd and 0 of 94 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 26525 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Thursday 23 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": "1933-03-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-23", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Thursday 23 March. Trayodaśī runs from 11:05 on Thu 23 Mar to 10:45 on Fri 24 Mar and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-03-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shivaratri?on=1933-03-24", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36034, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-03-24T10:44:57+08:00", "utc": "1933-03-24T02:44:57Z", "ms": -1160514902805.102 }, "end": { "local": "1933-03-25T10:49:45+08:00", "utc": "1933-03-25T02:49:45Z", "ms": -1160428214996.2615 }, "month": { "amanta": 11, "purnimanta": 0, "adhika": false, "amanta_name": "Phālguna", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-24T10:44:57+08:00", "utc": "1933-03-24T02:44:57Z", "ms": -1160514902805.102 }, "end": { "local": "1933-03-25T10:49:45+08:00", "utc": "1933-03-25T02:49:45Z", "ms": -1160428214996.2615 } }, "kaala": "nishita", "days": [ { "local_date": "1933-03-23", "window": { "start": { "local": "1933-03-23T23:56:23+08:00", "utc": "1933-03-23T15:56:23Z", "ms": -1160553816698.8066 }, "end": { "local": "1933-03-24T00:44:23+08:00", "utc": "1933-03-23T16:44:23Z", "ms": -1160550936698.8066 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-03-24", "window": { "start": { "local": "1933-03-24T23:56:05+08:00", "utc": "1933-03-24T15:56:05Z", "ms": -1160467434827.9902 }, "end": { "local": "1933-03-25T00:44:05+08:00", "utc": "1933-03-24T16:44:05Z", "ms": -1160464554827.9902 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 10:45 on Fri 24 Mar to 10:50 on Sat 25 Mar.", "fact": "1933-03-24T02:44:57Z → 1933-03-25T02:49:45Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:56–00:44 on the 23rd, 23:56–00:44 on the 24th.", "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 23rd and 48 of 48 on the 24th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 36034 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Friday 24 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": "1933-03-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-24", "confidence": "determinate" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Friday 24 March. Caturdaśī runs from 10:45 on Fri 24 Mar to 10:50 on Sat 25 Mar and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-03-24", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/navaratra-arambha-caitra", "festival": "navaratra-arambha-caitra", "name": "Navarātrārambha (Caitra)", "everyday": "Chaitra Navratri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1290, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-03-26T11:20:13+08:00", "utc": "1933-03-26T03:20:13Z", "ms": -1160339986835.5183 }, "end": { "local": "1933-03-27T12:17:19+08:00", "utc": "1933-03-27T04:17:19Z", "ms": -1160250161288.8335 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-26T11:20:13+08:00", "utc": "1933-03-26T03:20:13Z", "ms": -1160339986835.5183 }, "end": { "local": "1933-03-27T12:17:19+08:00", "utc": "1933-03-27T04:17:19Z", "ms": -1160250161288.8335 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-26", "window": { "start": { "local": "1933-03-26T11:56:07+08:00", "utc": "1933-03-26T03:56:07Z", "ms": -1160337832873.7136 }, "end": { "local": "1933-03-26T12:44:07+08:00", "utc": "1933-03-26T04:44:07Z", "ms": -1160334952873.7136 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-03-27", "window": { "start": { "local": "1933-03-27T11:55:49+08:00", "utc": "1933-03-27T03:55:49Z", "ms": -1160251451111.5408 }, "end": { "local": "1933-03-27T12:43:49+08:00", "utc": "1933-03-27T04:43:49Z", "ms": -1160248571111.5408 } }, "covered_min": 21, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 11:20 on Sun 26 Mar to 12:17 on Mon 27 Mar.", "fact": "1933-03-26T03:20:13Z → 1933-03-27T04:17:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 26th, 11:56–12:44 on the 27th.", "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 26th and 21 of 48 on the 27th.", "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 1290 s" }, { "step": "ruling", "text": "Navarātrārambha (Caitra), Lu’an, 1933: Monday 27 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": "1933-03-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-27", "confidence": "determinate" } ], "quote": "In Lu’an, Navarātrārambha (Caitra) (Chaitra Navratri) 1933 falls on Monday 27 March. Pratipadā runs from 11:20 on Sun 26 Mar to 12:17 on Mon 27 Mar and covers 21 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/lu-an/festivals/1933/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": "/lu-an/festivals/1933/gauri-tritiya", "festival": "gauri-tritiya", "name": "Gaurī Tṛtīyā", "everyday": "Gangaur", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3456, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-03-28T13:41:06+08:00", "utc": "1933-03-28T05:41:06Z", "ms": -1160158733554.0964 }, "end": { "local": "1933-03-29T15:30:03+08:00", "utc": "1933-03-29T07:30:03Z", "ms": -1160065797221.1558 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-28T13:41:06+08:00", "utc": "1933-03-28T05:41:06Z", "ms": -1160158733554.0964 }, "end": { "local": "1933-03-29T15:30:03+08:00", "utc": "1933-03-29T07:30:03Z", "ms": -1160065797221.1558 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-28", "window": { "start": { "local": "1933-03-28T11:55:31+08:00", "utc": "1933-03-28T03:55:31Z", "ms": -1160165069354.773 }, "end": { "local": "1933-03-28T12:43:31+08:00", "utc": "1933-03-28T04:43:31Z", "ms": -1160162189354.773 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-03-29", "window": { "start": { "local": "1933-03-29T11:55:12+08:00", "utc": "1933-03-29T03:55:12Z", "ms": -1160078687586.437 }, "end": { "local": "1933-03-29T12:43:12+08:00", "utc": "1933-03-29T04:43:12Z", "ms": -1160075807586.437 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:41 on Tue 28 Mar to 15:30 on Wed 29 Mar.", "fact": "1933-03-28T05:41:06Z → 1933-03-29T07:30:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 28th, 11:55–12:43 on the 29th.", "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 28th and 48 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: unstated → only-day · margin 3456 s" }, { "step": "ruling", "text": "Gaurī Tṛtīyā, Lu’an, 1933: Wednesday 29 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": "1933-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-29", "confidence": "determinate" } ], "quote": "In Lu’an, Gaurī Tṛtīyā (Gangaur) 1933 falls on Wednesday 29 March. Tṛtīyā runs from 13:41 on Tue 28 Mar to 15:30 on Wed 29 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/saubhagya-shayana-vrata", "festival": "saubhagya-shayana-vrata", "name": "Saubhāgya Śayana Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3456, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-03-28T13:41:06+08:00", "utc": "1933-03-28T05:41:06Z", "ms": -1160158733554.0964 }, "end": { "local": "1933-03-29T15:30:03+08:00", "utc": "1933-03-29T07:30:03Z", "ms": -1160065797221.1558 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-28T13:41:06+08:00", "utc": "1933-03-28T05:41:06Z", "ms": -1160158733554.0964 }, "end": { "local": "1933-03-29T15:30:03+08:00", "utc": "1933-03-29T07:30:03Z", "ms": -1160065797221.1558 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-28", "window": { "start": { "local": "1933-03-28T11:55:31+08:00", "utc": "1933-03-28T03:55:31Z", "ms": -1160165069354.773 }, "end": { "local": "1933-03-28T12:43:31+08:00", "utc": "1933-03-28T04:43:31Z", "ms": -1160162189354.773 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-03-29", "window": { "start": { "local": "1933-03-29T11:55:12+08:00", "utc": "1933-03-29T03:55:12Z", "ms": -1160078687586.437 }, "end": { "local": "1933-03-29T12:43:12+08:00", "utc": "1933-03-29T04:43:12Z", "ms": -1160075807586.437 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:41 on Tue 28 Mar to 15:30 on Wed 29 Mar.", "fact": "1933-03-28T05:41:06Z → 1933-03-29T07:30:03Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 28th, 11:55–12:43 on the 29th.", "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 28th and 48 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 3456 s" }, { "step": "ruling", "text": "Saubhāgya Śayana Vrata, Lu’an, 1933: Wednesday 29 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": "1933-03-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-29", "confidence": "determinate" } ], "quote": "In Lu’an, Saubhāgya Śayana Vrata 1933 falls on Wednesday 29 March. Tṛtīyā runs from 13:41 on Tue 28 Mar to 15:30 on Wed 29 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-03-30", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10010, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-03-29T15:30:03+08:00", "utc": "1933-03-29T07:30:03Z", "ms": -1160065797221.1558 }, "end": { "local": "1933-03-30T17:40:08+08:00", "utc": "1933-03-30T09:40:08Z", "ms": -1159971591801.6975 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-29T15:30:03+08:00", "utc": "1933-03-29T07:30:03Z", "ms": -1160065797221.1558 }, "end": { "local": "1933-03-30T17:40:08+08:00", "utc": "1933-03-30T09:40:08Z", "ms": -1159971591801.6975 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-29", "window": { "start": { "local": "1933-03-29T11:55:12+08:00", "utc": "1933-03-29T03:55:12Z", "ms": -1160078687586.437 }, "end": { "local": "1933-03-29T12:43:12+08:00", "utc": "1933-03-29T04:43:12Z", "ms": -1160075807586.437 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-03-30", "window": { "start": { "local": "1933-03-30T11:54:54+08:00", "utc": "1933-03-30T03:54:54Z", "ms": -1159992305789.3655 }, "end": { "local": "1933-03-30T12:42:54+08:00", "utc": "1933-03-30T04:42:54Z", "ms": -1159989425789.3655 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:30 on Wed 29 Mar to 17:40 on Thu 30 Mar.", "fact": "1933-03-29T07:30:03Z → 1933-03-30T09:40:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 29th, 11:55–12:43 on the 30th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturthī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10010 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Lu’an, 1933: Thursday 30 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": "1933-03-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-30", "confidence": "determinate" } ], "quote": "In Lu’an, Vināyaka Caturthī 1933 falls on Thursday 30 March. Caturthī runs from 15:30 on Wed 29 Mar to 17:40 on Thu 30 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-03-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/lakshmi-panchami", "festival": "lakshmi-panchami", "name": "Lakṣmī Pañcamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-03-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17834, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-03-30T17:40:08+08:00", "utc": "1933-03-30T09:40:08Z", "ms": -1159971591801.6975 }, "end": { "local": "1933-03-31T20:04:24+08:00", "utc": "1933-03-31T12:04:24Z", "ms": -1159876536217.511 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-03-30T17:40:08+08:00", "utc": "1933-03-30T09:40:08Z", "ms": -1159971591801.6975 }, "end": { "local": "1933-03-31T20:04:24+08:00", "utc": "1933-03-31T12:04:24Z", "ms": -1159876536217.511 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-03-30", "window": { "start": { "local": "1933-03-30T11:54:54+08:00", "utc": "1933-03-30T03:54:54Z", "ms": -1159992305789.3655 }, "end": { "local": "1933-03-30T12:42:54+08:00", "utc": "1933-03-30T04:42:54Z", "ms": -1159989425789.3655 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-03-31", "window": { "start": { "local": "1933-03-31T11:54:36+08:00", "utc": "1933-03-31T03:54:36Z", "ms": -1159905923946.1775 }, "end": { "local": "1933-03-31T12:42:36+08:00", "utc": "1933-03-31T04:42:36Z", "ms": -1159903043946.1775 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 17:40 on Thu 30 Mar to 20:04 on Fri 31 Mar.", "fact": "1933-03-30T09:40:08Z → 1933-03-31T12:04:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 30th, 11:55–12:43 on the 31st.", "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 30th and 48 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17834 s" }, { "step": "ruling", "text": "Lakṣmī Pañcamī, Lu’an, 1933: Friday 31 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": "1933-03-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-03-31", "confidence": "determinate" } ], "quote": "In Lu’an, Lakṣmī Pañcamī 1933 falls on Friday 31 March. Pañcamī runs from 17:40 on Thu 30 Mar to 20:04 on Fri 31 Mar and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/bhavani-utpatti", "festival": "bhavani-utpatti", "name": "Bhavānī Utpatti", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32451, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-04-03T00:53:13+08:00", "utc": "1933-04-02T16:53:13Z", "ms": -1159686406977.5876 }, "end": { "local": "1933-04-04T02:52:33+08:00", "utc": "1933-04-03T18:52:33Z", "ms": -1159592847236.6995 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-04-03T00:53:13+08:00", "utc": "1933-04-02T16:53:13Z", "ms": -1159686406977.5876 }, "end": { "local": "1933-04-04T02:52:33+08:00", "utc": "1933-04-03T18:52:33Z", "ms": -1159592847236.6995 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-03", "window": { "start": { "local": "1933-04-03T11:53:42+08:00", "utc": "1933-04-03T03:53:42Z", "ms": -1159646777962.9749 }, "end": { "local": "1933-04-03T12:41:42+08:00", "utc": "1933-04-03T04:41:42Z", "ms": -1159643897962.9749 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-04-04", "window": { "start": { "local": "1933-04-04T11:53:24+08:00", "utc": "1933-04-04T03:53:24Z", "ms": -1159560395757.3389 }, "end": { "local": "1933-04-04T12:41:24+08:00", "utc": "1933-04-04T04:41:24Z", "ms": -1159557515757.3389 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 00:53 on Mon 3 Apr to 02:53 on Tue 4 Apr.", "fact": "1933-04-02T16:53:13Z → 1933-04-03T18:52:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 3rd, 11:53–12:41 on the 4th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 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 32451 s" }, { "step": "ruling", "text": "Bhavānī Utpatti, Lu’an, 1933: Monday 3 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bhavani-utpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Annapurna puja (Beng.) (paraviddha), Bhavani-utpatti (paraviddha), Asokastami (Special when combined with naks. Punarvasu and Wednesday, after mid-day)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-04-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-03", "confidence": "determinate" } ], "quote": "In Lu’an, Bhavānī Utpatti 1933 falls on Monday 3 April. Aṣṭamī runs from 00:53 on Mon 3 Apr to 02:53 on Tue 4 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/rama-navami", "festival": "rama-navami", "name": "Rāma Navamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27248, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1933-04-04T02:52:33+08:00", "utc": "1933-04-03T18:52:33Z", "ms": -1159592847236.6995 }, "end": { "local": "1933-04-05T04:18:59+08:00", "utc": "1933-04-04T20:18:59Z", "ms": -1159501261355.4475 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-04-04T02:52:33+08:00", "utc": "1933-04-03T18:52:33Z", "ms": -1159592847236.6995 }, "end": { "local": "1933-04-05T04:18:59+08:00", "utc": "1933-04-04T20:18:59Z", "ms": -1159501261355.4475 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-04", "window": { "start": { "local": "1933-04-04T11:53:24+08:00", "utc": "1933-04-04T03:53:24Z", "ms": -1159560395757.3389 }, "end": { "local": "1933-04-04T12:41:24+08:00", "utc": "1933-04-04T04:41:24Z", "ms": -1159557515757.3389 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-04-05", "window": { "start": { "local": "1933-04-05T11:53:07+08:00", "utc": "1933-04-05T03:53:07Z", "ms": -1159474013415.4717 }, "end": { "local": "1933-04-05T12:41:07+08:00", "utc": "1933-04-05T04:41:07Z", "ms": -1159471133415.4717 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 02:53 on Tue 4 Apr to 04:19 on Wed 5 Apr.", "fact": "1933-04-03T18:52:33Z → 1933-04-04T20:18:59Z" }, { "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": "Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27248 s" }, { "step": "ruling", "text": "Rāma Navamī, Lu’an, 1933: Tuesday 4 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rama-navami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 9 Ramanavami (madhyahnavyapini, special with Punarvasu naks.), Rama jayanti." } ], "not_evaluated": "The row calls the day special when it falls with Punarvasu nakṣatra; the nakṣatra is not tested.", "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-04-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-04", "confidence": "determinate" } ], "quote": "In Lu’an, Rāma Navamī 1933 falls on Tuesday 4 April. Navamī runs from 02:53 on Tue 4 Apr to 04:19 on Wed 5 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-04-06", "festival": "ekadashi", "name": "Kāmadā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3245, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-04-06T05:03:32+08:00", "utc": "1933-04-05T21:03:32Z", "ms": -1159412188032.6633 }, "end": { "local": "1933-04-07T05:01:11+08:00", "utc": "1933-04-06T21:01:11Z", "ms": -1159325929455.6753 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-04-06T05:03:32+08:00", "utc": "1933-04-05T21:03:32Z", "ms": -1159412188032.6633 }, "end": { "local": "1933-04-07T05:01:11+08:00", "utc": "1933-04-06T21:01:11Z", "ms": -1159325929455.6753 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-04-06", "window": { "start": { "local": "1933-04-06T05:57:37+08:00", "utc": "1933-04-05T21:57:37Z", "ms": -1159408943280.6953 }, "end": { "local": "1933-04-06T05:57:37+08:00", "utc": "1933-04-05T21:57:37Z", "ms": -1159408943280.6953 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-04-07", "window": { "start": { "local": "1933-04-07T05:56:22+08:00", "utc": "1933-04-06T21:56:22Z", "ms": -1159322617785.3357 }, "end": { "local": "1933-04-07T05:56:22+08:00", "utc": "1933-04-06T21:56:22Z", "ms": -1159322617785.3357 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:04 on Thu 6 Apr to 05:01 on Fri 7 Apr.", "fact": "1933-04-05T21:03:32Z → 1933-04-06T21:01:11Z" }, { "step": "kaala", "text": "Sunrise is at 05:58 on the 6th and 05:56 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is 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": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3245 s" }, { "step": "ruling", "text": "Kāmadā Ekādaśī, Lu’an, 1933: Thursday 6 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": "1933-04-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-06", "confidence": "determinate" } ], "quote": "In Lu’an, Kāmadā Ekādaśī 1933 falls on Thursday 6 April. Ekādaśī runs from 05:04 on Thu 6 Apr to 05:01 on Fri 7 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-04-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ananga-trayodashi", "festival": "ananga-trayodashi", "name": "Anaṅga Trayodaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27671, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-04-08T04:11:04+08:00", "utc": "1933-04-07T20:11:04Z", "ms": -1159242536104.1152 }, "end": { "local": "1933-04-09T02:36:08+08:00", "utc": "1933-04-08T18:36:08Z", "ms": -1159161831985.266 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-04-08T04:11:04+08:00", "utc": "1933-04-07T20:11:04Z", "ms": -1159242536104.1152 }, "end": { "local": "1933-04-09T02:36:08+08:00", "utc": "1933-04-08T18:36:08Z", "ms": -1159161831985.266 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-08", "window": { "start": { "local": "1933-04-08T11:52:15+08:00", "utc": "1933-04-08T03:52:15Z", "ms": -1159214865381.2969 }, "end": { "local": "1933-04-08T12:40:15+08:00", "utc": "1933-04-08T04:40:15Z", "ms": -1159211985381.2969 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-04-09", "window": { "start": { "local": "1933-04-09T11:51:58+08:00", "utc": "1933-04-09T03:51:58Z", "ms": -1159128482300.5098 }, "end": { "local": "1933-04-09T12:39:58+08:00", "utc": "1933-04-09T04:39:58Z", "ms": -1159125602300.5098 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:11 on Sat 8 Apr to 02:36 on Sun 9 Apr.", "fact": "1933-04-07T20:11:04Z → 1933-04-08T18:36:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 8th, 11:52–12:40 on the 9th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 8th and 0 of 48 on the 9th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27671 s" }, { "step": "ruling", "text": "Anaṅga Trayodaśī, Lu’an, 1933: Saturday 8 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": "1933-04-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-08", "confidence": "determinate" } ], "quote": "In Lu’an, Anaṅga Trayodaśī 1933 falls on Saturday 8 April. Trayodaśī runs from 04:11 on Sat 8 Apr to 02:36 on Sun 9 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/pradosha-vrata?on=1933-04-08", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23314, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-04-08T04:11:04+08:00", "utc": "1933-04-07T20:11:04Z", "ms": -1159242536104.1152 }, "end": { "local": "1933-04-09T02:36:08+08:00", "utc": "1933-04-08T18:36:08Z", "ms": -1159161831985.266 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-04-08T04:11:04+08:00", "utc": "1933-04-07T20:11:04Z", "ms": -1159242536104.1152 }, "end": { "local": "1933-04-09T02:36:08+08:00", "utc": "1933-04-08T18:36:08Z", "ms": -1159161831985.266 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-04-07", "window": { "start": { "local": "1933-04-07T18:36:41+08:00", "utc": "1933-04-07T10:36:41Z", "ms": -1159276998708.8577 }, "end": { "local": "1933-04-07T20:07:09+08:00", "utc": "1933-04-07T12:07:09Z", "ms": -1159271571138.157 } }, "covered_min": 0, "window_min": 90, "qualifies": false }, { "local_date": "1933-04-08", "window": { "start": { "local": "1933-04-08T18:37:21+08:00", "utc": "1933-04-08T10:37:21Z", "ms": -1159190558833.9907 }, "end": { "local": "1933-04-08T20:07:34+08:00", "utc": "1933-04-08T12:07:34Z", "ms": -1159185146413.6345 } }, "covered_min": 90, "window_min": 90, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:11 on Sat 8 Apr to 02:36 on Sun 9 Apr.", "fact": "1933-04-07T20:11:04Z → 1933-04-08T18:36:08Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:37–20:07 on the 7th, 18:37–20:08 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 90 minutes on the 7th and 90 of 90 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23314 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Saturday 8 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": "1933-04-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-08", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Saturday 8 April. Trayodaśī runs from 04:11 on Sat 8 Apr to 02:36 on Sun 9 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-04-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/vishnu-damanaka-chaturdashi", "festival": "vishnu-damanaka-chaturdashi", "name": "Viṣṇudamanaka Caturdaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33350, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-04-09T02:36:08+08:00", "utc": "1933-04-08T18:36:08Z", "ms": -1159161831985.266 }, "end": { "local": "1933-04-10T00:22:18+08:00", "utc": "1933-04-09T16:22:18Z", "ms": -1159083462292.1836 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-04-09T02:36:08+08:00", "utc": "1933-04-08T18:36:08Z", "ms": -1159161831985.266 }, "end": { "local": "1933-04-10T00:22:18+08:00", "utc": "1933-04-09T16:22:18Z", "ms": -1159083462292.1836 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-09", "window": { "start": { "local": "1933-04-09T11:51:58+08:00", "utc": "1933-04-09T03:51:58Z", "ms": -1159128482300.5098 }, "end": { "local": "1933-04-09T12:39:58+08:00", "utc": "1933-04-09T04:39:58Z", "ms": -1159125602300.5098 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-04-10", "window": { "start": { "local": "1933-04-10T11:51:41+08:00", "utc": "1933-04-10T03:51:41Z", "ms": -1159042098983.5493 }, "end": { "local": "1933-04-10T12:39:41+08:00", "utc": "1933-04-10T04:39:41Z", "ms": -1159039218983.5493 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 02:36 on Sun 9 Apr to 00:22 on Mon 10 Apr.", "fact": "1933-04-08T18:36:08Z → 1933-04-09T16:22:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 9th, 11:52–12:40 on the 10th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33350 s" }, { "step": "ruling", "text": "Viṣṇudamanaka Caturdaśī, Lu’an, 1933: Sunday 9 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": "1933-04-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-09", "confidence": "determinate" } ], "quote": "In Lu’an, Viṣṇudamanaka Caturdaśī 1933 falls on Sunday 9 April. Caturdaśī runs from 02:36 on Sun 9 Apr to 00:22 on Mon 10 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/chaitri-purnima", "festival": "chaitri-purnima", "name": "Caitrī Pūrṇimā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32272, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-04-10T00:22:18+08:00", "utc": "1933-04-09T16:22:18Z", "ms": -1159083462292.1836 }, "end": { "local": "1933-04-10T21:37:33+08:00", "utc": "1933-04-10T13:37:33Z", "ms": -1159006946764.8582 }, "month": { "amanta": 0, "purnimanta": 0, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Caitra" } }, "span": { "of": "tithi", "start": { "local": "1933-04-10T00:22:18+08:00", "utc": "1933-04-09T16:22:18Z", "ms": -1159083462292.1836 }, "end": { "local": "1933-04-10T21:37:33+08:00", "utc": "1933-04-10T13:37:33Z", "ms": -1159006946764.8582 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-09", "window": { "start": { "local": "1933-04-09T11:51:58+08:00", "utc": "1933-04-09T03:51:58Z", "ms": -1159128482300.5098 }, "end": { "local": "1933-04-09T12:39:58+08:00", "utc": "1933-04-09T04:39:58Z", "ms": -1159125602300.5098 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-04-10", "window": { "start": { "local": "1933-04-10T11:51:41+08:00", "utc": "1933-04-10T03:51:41Z", "ms": -1159042098983.5493 }, "end": { "local": "1933-04-10T12:39:41+08:00", "utc": "1933-04-10T04:39:41Z", "ms": -1159039218983.5493 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 00:22 on Mon 10 Apr to 21:38 on Mon 10 Apr.", "fact": "1933-04-09T16:22:18Z → 1933-04-10T13:37:33Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 9th, 11:52–12:40 on the 10th.", "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 9th and 48 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 32272 s" }, { "step": "ruling", "text": "Caitrī Pūrṇimā, Lu’an, 1933: Monday 10 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": "1933-04-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-10", "confidence": "determinate" } ], "quote": "In Lu’an, Caitrī Pūrṇimā 1933 falls on Monday 10 April. Pūrṇimā runs from 00:22 on Mon 10 Apr to 21:38 on Mon 10 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vaishakhi", "festival": "vaishakhi", "name": "Vaiśākhī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 35452, "anga": { "type": "sankranti", "index": 0, "key": "mesha", "name": "Meṣa", "start": { "local": "1933-04-13T15:39:56+08:00", "utc": "1933-04-13T07:39:56Z", "ms": -1158769203899.7327 }, "end": { "local": "1933-05-14T12:42:11+08:00", "utc": "1933-05-14T04:42:11Z", "ms": -1156101469173.409 } }, "span": { "of": "transit", "start": { "local": "1933-04-13T15:39:56+08:00", "utc": "1933-04-13T07:39:56Z", "ms": -1158769203899.7327 }, "end": { "local": "1933-04-13T15:39:56+08:00", "utc": "1933-04-13T07:39:56Z", "ms": -1158769203899.7327 } }, "kaala": "day", "days": [ { "local_date": "1933-04-12", "window": { "start": { "local": "1933-04-12T05:50:16+08:00", "utc": "1933-04-11T21:50:16Z", "ms": -1158890984298.9824 }, "end": { "local": "1933-04-13T05:49:04+08:00", "utc": "1933-04-12T21:49:04Z", "ms": -1158804656190.8577 } }, "covered_min": 0, "window_min": 1439, "qualifies": false }, { "local_date": "1933-04-13", "window": { "start": { "local": "1933-04-13T05:49:04+08:00", "utc": "1933-04-12T21:49:04Z", "ms": -1158804656190.8577 }, "end": { "local": "1933-04-14T05:47:52+08:00", "utc": "1933-04-13T21:47:52Z", "ms": -1158718327541.692 } }, "covered_min": 1, "window_min": 1439, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "The Sun enters Meṣa at 15:40 on Thu 13 Apr.", "fact": "1933-04-13T07:39:56Z · nirayana, lahiri-iae1985" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:50 on the 12th, and from 05:49 on the 13th.", "fact": "day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "The festival is kept on the day of the transit, the day counted from sunrise. The transit falls on the 13th, not the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 106" }, { "step": "tie_break", "text": "An instant falls in one day and no other. No tie-break is needed.", "fact": "day counted from sunrise → only-day · margin 35452 s" }, { "step": "ruling", "text": "Vaiśākhī, Lu’an, 1933: Thursday 13 April.", "fact": "confidence: determinate" } ], "rule": { "kind": "solar", "id": "vaishakhi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Mesadi — Cadaka puja (Bengal), Bahag Bihu (Assam), Cheiraoba (Manipur), Visu (T. C. State), Vaisakhi (on the samkramana day commencing from sunrise)." }, { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } ], "not_evaluated": "The other names in the row (Cadaka puja, Bahag Bihu, Cheiraoba, Visu) are regional observances and wait with the regional rows.", "rashi": "Meṣa", "day_from": "sunrise" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-13", "confidence": "determinate" }, { "kind": "reckoning", "id": "civil-day", "local_date": "1933-04-13", "statement": "Counted from midnight", "reference": { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 106", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The following festivals are observed according to the day of Sun's transit into rasis (Ravi-samkramana). For this purpose the day has been taken to begin from midnight, i.e., when the samkramana takes place after midnight, the festival relating to the samkramana is to be observed on the following day." } }, { "kind": "reckoning", "id": "sunset-rule", "local_date": "1933-04-13", "statement": "Past sunset, the next day (the Tamil rule)", "reference": { "text": "Calendar Reform Committee 1955, Rules of Samkranti", "locator": "p. 244", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The Tamil rule: In the Tamil districts the rule is that when a samkranti takes place before sunset, the month begins on the same day, while if it takes place after sunset the month begins on the following day." } } ], "quote": "In Lu’an, Vaiśākhī 1933 falls on Thursday 13 April. The Sun enters Meṣa at 15:40 on Thu 13 Apr, and the rule counts the day from sunrise.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-04-13", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37075, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-04-13T11:53:08+08:00", "utc": "1933-04-13T03:53:08Z", "ms": -1158782812229.9783 }, "end": { "local": "1933-04-14T08:40:47+08:00", "utc": "1933-04-14T00:40:47Z", "ms": -1158707952658.3562 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-04-13T11:53:08+08:00", "utc": "1933-04-13T03:53:08Z", "ms": -1158782812229.9783 }, "end": { "local": "1933-04-14T08:40:47+08:00", "utc": "1933-04-14T00:40:47Z", "ms": -1158707952658.3562 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-04-13", "window": { "start": { "local": "1933-04-13T22:11:03+08:00", "utc": "1933-04-13T14:11:03Z", "ms": -1158745736860.859 }, "end": { "local": "1933-04-13T22:11:03+08:00", "utc": "1933-04-13T14:11:03Z", "ms": -1158745736860.859 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-04-14", "window": { "start": { "local": "1933-04-14T23:21:53+08:00", "utc": "1933-04-14T15:21:53Z", "ms": -1158655087194.5876 }, "end": { "local": "1933-04-14T23:21:53+08:00", "utc": "1933-04-14T15:21:53Z", "ms": -1158655087194.5876 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 11:53 on Thu 13 Apr to 08:41 on Fri 14 Apr.", "fact": "1933-04-13T03:53:08Z → 1933-04-14T00:40:47Z" }, { "step": "kaala", "text": "Moonrise is at 22:11 on the 13th and 23:22 on the 14th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 13th and is not on the 14th.", "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 37075 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Thursday 13 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": "1933-04-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-13", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Thursday 13 April. Caturthī runs from 11:53 on Thu 13 Apr to 08:41 on Fri 14 Apr and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-04-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ekadashi?on=1933-04-20", "festival": "ekadashi", "name": "Varūthinī Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26735, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-04-19T22:10:13+08:00", "utc": "1933-04-19T14:10:13Z", "ms": -1158227386736.6763 }, "end": { "local": "1933-04-20T22:14:16+08:00", "utc": "1933-04-20T14:14:16Z", "ms": -1158140744058.3064 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-04-19T22:10:13+08:00", "utc": "1933-04-19T14:10:13Z", "ms": -1158227386736.6763 }, "end": { "local": "1933-04-20T22:14:16+08:00", "utc": "1933-04-20T14:14:16Z", "ms": -1158140744058.3064 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-04-20", "window": { "start": { "local": "1933-04-20T05:40:57+08:00", "utc": "1933-04-19T21:40:57Z", "ms": -1158200342623.279 }, "end": { "local": "1933-04-20T05:40:57+08:00", "utc": "1933-04-19T21:40:57Z", "ms": -1158200342623.279 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-04-21", "window": { "start": { "local": "1933-04-21T05:39:51+08:00", "utc": "1933-04-20T21:39:51Z", "ms": -1158114009371.1367 }, "end": { "local": "1933-04-21T05:39:51+08:00", "utc": "1933-04-20T21:39:51Z", "ms": -1158114009371.1367 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:10 on Wed 19 Apr to 22:14 on Thu 20 Apr.", "fact": "1933-04-19T14:10:13Z → 1933-04-20T14:14:16Z" }, { "step": "kaala", "text": "Sunrise is at 05:41 on the 20th and 05:40 on the 21st.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 20th and is not on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26735 s" }, { "step": "ruling", "text": "Varūthinī Ekādaśī, Lu’an, 1933: Thursday 20 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": "1933-04-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-20", "confidence": "determinate" } ], "quote": "In Lu’an, Varūthinī Ekādaśī 1933 falls on Thursday 20 April. Ekādaśī runs from 22:10 on Wed 19 Apr to 22:14 on Thu 20 Apr and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-04-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-04-22", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9161, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-04-21T22:45:49+08:00", "utc": "1933-04-21T14:45:49Z", "ms": -1158052451257.0134 }, "end": { "local": "1933-04-22T23:41:56+08:00", "utc": "1933-04-22T15:41:56Z", "ms": -1157962684220.9456 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-04-21T22:45:49+08:00", "utc": "1933-04-21T14:45:49Z", "ms": -1158052451257.0134 }, "end": { "local": "1933-04-22T23:41:56+08:00", "utc": "1933-04-22T15:41:56Z", "ms": -1157962684220.9456 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-04-21", "window": { "start": { "local": "1933-04-21T18:46:07+08:00", "utc": "1933-04-21T10:46:07Z", "ms": -1158066832986.8564 }, "end": { "local": "1933-04-21T20:13:08+08:00", "utc": "1933-04-21T12:13:08Z", "ms": -1158061611969.1567 } }, "covered_min": 0, "window_min": 87, "qualifies": false }, { "local_date": "1933-04-22", "window": { "start": { "local": "1933-04-22T18:46:48+08:00", "utc": "1933-04-22T10:46:48Z", "ms": -1157980391763.8298 }, "end": { "local": "1933-04-22T20:13:35+08:00", "utc": "1933-04-22T12:13:35Z", "ms": -1157975184934.992 } }, "covered_min": 87, "window_min": 87, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 22:46 on Fri 21 Apr to 23:42 on Sat 22 Apr.", "fact": "1933-04-21T14:45:49Z → 1933-04-22T15:41:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:46–20:13 on the 21st, 18:47–20:14 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 87 minutes on the 21st and 87 of 87 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9161 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Saturday 22 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": "1933-04-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-22", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Saturday 22 April. Trayodaśī runs from 22:46 on Fri 21 Apr to 23:42 on Sat 22 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-04-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shivaratri?on=1933-04-22", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-22", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 378, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-04-22T23:41:56+08:00", "utc": "1933-04-22T15:41:56Z", "ms": -1157962684220.9456 }, "end": { "local": "1933-04-24T01:00:05+08:00", "utc": "1933-04-23T17:00:05Z", "ms": -1157871595287.5764 }, "month": { "amanta": 0, "purnimanta": 1, "adhika": false, "amanta_name": "Caitra", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-04-22T23:41:56+08:00", "utc": "1933-04-22T15:41:56Z", "ms": -1157962684220.9456 }, "end": { "local": "1933-04-24T01:00:05+08:00", "utc": "1933-04-23T17:00:05Z", "ms": -1157871595287.5764 } }, "kaala": "nishita", "days": [ { "local_date": "1933-04-22", "window": { "start": { "local": "1933-04-22T23:48:14+08:00", "utc": "1933-04-22T15:48:14Z", "ms": -1157962306155.6875 }, "end": { "local": "1933-04-23T00:36:14+08:00", "utc": "1933-04-22T16:36:14Z", "ms": -1157959426155.6875 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-04-23", "window": { "start": { "local": "1933-04-23T23:48:02+08:00", "utc": "1933-04-23T15:48:02Z", "ms": -1157875917681.1958 }, "end": { "local": "1933-04-24T00:36:02+08:00", "utc": "1933-04-23T16:36:02Z", "ms": -1157873037681.1958 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 23:42 on Sat 22 Apr to 01:00 on Mon 24 Apr.", "fact": "1933-04-22T15:41:56Z → 1933-04-23T17:00:05Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:48–00:36 on the 22nd, 23:48–00:36 on the 23rd.", "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 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Both nights qualify and the rule marks neither. The one covered longer is ruled, as a boundary.", "fact": "priority: unstated → greater-coverage · margin 378 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Saturday 22 April.", "fact": "confidence: boundary (tie-break-unstated)" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-04-22", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-22", "confidence": "boundary" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Saturday 22 April. Caturdaśī runs from 23:42 on Sat 22 Apr to 01:00 on Mon 24 Apr and covers all of niśītha that night. It also reaches the next night for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-04-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/parashurama-jayanti", "festival": "parashurama-jayanti", "name": "Paraśurāma Jayantī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34926, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-04-27T06:45:49+08:00", "utc": "1933-04-26T22:45:49Z", "ms": -1157591650728.037 }, "end": { "local": "1933-04-28T09:08:52+08:00", "utc": "1933-04-28T01:08:52Z", "ms": -1157496667992.1396 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-04-27T06:45:49+08:00", "utc": "1933-04-26T22:45:49Z", "ms": -1157591650728.037 }, "end": { "local": "1933-04-28T09:08:52+08:00", "utc": "1933-04-28T01:08:52Z", "ms": -1157496667992.1396 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-04-27", "window": { "start": { "local": "1933-04-27T18:50:16+08:00", "utc": "1933-04-27T10:50:16Z", "ms": -1157548184201.4678 }, "end": { "local": "1933-04-27T20:15:53+08:00", "utc": "1933-04-27T12:15:53Z", "ms": -1157543046819.3933 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "1933-04-28", "window": { "start": { "local": "1933-04-28T18:50:58+08:00", "utc": "1933-04-28T10:50:58Z", "ms": -1157461742455.2278 }, "end": { "local": "1933-04-28T20:16:21+08:00", "utc": "1933-04-28T12:16:21Z", "ms": -1157456618633.6604 } }, "covered_min": 0, "window_min": 85, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:46 on Thu 27 Apr to 09:09 on Fri 28 Apr.", "fact": "1933-04-26T22:45:49Z → 1933-04-28T01:08:52Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:50–20:16 on the 27th, 18:51–20:16 on the 28th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pradoṣa. It covers 86 of 86 minutes on the 27th and 0 of 85 on the 28th.", "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 34926 s" }, { "step": "ruling", "text": "Paraśurāma Jayantī, Lu’an, 1933: Thursday 27 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": "1933-04-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-27", "confidence": "determinate" } ], "quote": "In Lu’an, Paraśurāma Jayantī 1933 falls on Thursday 27 April. Tṛtīyā runs from 06:46 on Thu 27 Apr to 09:09 on Fri 28 Apr and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/akshaya-tritiya", "festival": "akshaya-tritiya", "name": "Akṣaya Tṛtīyā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2985, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-04-27T06:45:49+08:00", "utc": "1933-04-26T22:45:49Z", "ms": -1157591650728.037 }, "end": { "local": "1933-04-28T09:08:52+08:00", "utc": "1933-04-28T01:08:52Z", "ms": -1157496667992.1396 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-04-27T06:45:49+08:00", "utc": "1933-04-26T22:45:49Z", "ms": -1157591650728.037 }, "end": { "local": "1933-04-28T09:08:52+08:00", "utc": "1933-04-28T01:08:52Z", "ms": -1157496667992.1396 } }, "kaala": "purvahna", "days": [ { "local_date": "1933-04-27", "window": { "start": { "local": "1933-04-27T05:33:27+08:00", "utc": "1933-04-26T21:33:27Z", "ms": -1157595992947.187 }, "end": { "local": "1933-04-27T09:59:03+08:00", "utc": "1933-04-27T01:59:03Z", "ms": -1157580056698.614 } }, "covered_min": 193, "window_min": 266, "qualifies": true }, { "local_date": "1933-04-28", "window": { "start": { "local": "1933-04-28T05:32:26+08:00", "utc": "1933-04-27T21:32:26Z", "ms": -1157509653835.91 }, "end": { "local": "1933-04-28T09:58:37+08:00", "utc": "1933-04-28T01:58:37Z", "ms": -1157493683375.6826 } }, "covered_min": 216, "window_min": 266, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 06:46 on Thu 27 Apr to 09:09 on Fri 28 Apr.", "fact": "1933-04-26T22:45:49Z → 1933-04-28T01:08:52Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:33–09:59 on the 27th, 05:32–09:59 on the 28th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during pūrvāhṇa. It covers 193 of 266 minutes on the 27th and 216 of 266 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both forenoons qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 2985 s" }, { "step": "ruling", "text": "Akṣaya Tṛtīyā, Lu’an, 1933: Friday 28 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": "1933-04-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-28", "confidence": "determinate" } ], "quote": "In Lu’an, Akṣaya Tṛtīyā 1933 falls on Friday 28 April. Tṛtīyā runs from 06:46 on Thu 27 Apr to 09:09 on Fri 28 Apr and covers 216 of 266 minutes of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 193 minutes; by the rule the second forenoon is taken.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-04-28", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 615, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-04-28T09:08:52+08:00", "utc": "1933-04-28T01:08:52Z", "ms": -1157496667992.1396 }, "end": { "local": "1933-04-29T11:37:18+08:00", "utc": "1933-04-29T03:37:18Z", "ms": -1157401362479.2275 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-04-28T09:08:52+08:00", "utc": "1933-04-28T01:08:52Z", "ms": -1157496667992.1396 }, "end": { "local": "1933-04-29T11:37:18+08:00", "utc": "1933-04-29T03:37:18Z", "ms": -1157401362479.2275 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-28", "window": { "start": { "local": "1933-04-28T11:47:42+08:00", "utc": "1933-04-28T03:47:42Z", "ms": -1157487138145.5688 }, "end": { "local": "1933-04-28T12:35:42+08:00", "utc": "1933-04-28T04:35:42Z", "ms": -1157484258145.5688 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-04-29", "window": { "start": { "local": "1933-04-29T11:47:33+08:00", "utc": "1933-04-29T03:47:33Z", "ms": -1157400747223.2856 }, "end": { "local": "1933-04-29T12:35:33+08:00", "utc": "1933-04-29T04:35:33Z", "ms": -1157397867223.2856 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 09:09 on Fri 28 Apr to 11:37 on Sat 29 Apr.", "fact": "1933-04-28T01:08:52Z → 1933-04-29T03:37:18Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 28th, 11:48–12:36 on the 29th.", "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 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 615 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Lu’an, 1933: Friday 28 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": "1933-04-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-28", "confidence": "boundary" } ], "quote": "In Lu’an, Vināyaka Caturthī 1933 falls on Friday 28 April. Caturthī runs from 09:09 on Fri 28 Apr to 11:37 on Sat 29 Apr and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-04-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shankara-jayanti", "festival": "shankara-jayanti", "name": "Śaṅkara Jayantī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-04-29", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 615, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-04-29T11:37:18+08:00", "utc": "1933-04-29T03:37:18Z", "ms": -1157401362479.2275 }, "end": { "local": "1933-04-30T14:02:29+08:00", "utc": "1933-04-30T06:02:29Z", "ms": -1157306250614.547 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-04-29T11:37:18+08:00", "utc": "1933-04-29T03:37:18Z", "ms": -1157401362479.2275 }, "end": { "local": "1933-04-30T14:02:29+08:00", "utc": "1933-04-30T06:02:29Z", "ms": -1157306250614.547 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-04-29", "window": { "start": { "local": "1933-04-29T11:47:33+08:00", "utc": "1933-04-29T03:47:33Z", "ms": -1157400747223.2856 }, "end": { "local": "1933-04-29T12:35:33+08:00", "utc": "1933-04-29T04:35:33Z", "ms": -1157397867223.2856 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-04-30", "window": { "start": { "local": "1933-04-30T11:47:24+08:00", "utc": "1933-04-30T03:47:24Z", "ms": -1157314355801.1892 }, "end": { "local": "1933-04-30T12:35:24+08:00", "utc": "1933-04-30T04:35:24Z", "ms": -1157311475801.1892 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 11:37 on Sat 29 Apr to 14:02 on Sun 30 Apr.", "fact": "1933-04-29T03:37:18Z → 1933-04-30T06:02:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 29th, 11:47–12:35 on the 30th.", "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 29th and 48 of 48 on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "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 615 s" }, { "step": "ruling", "text": "Śaṅkara Jayantī, Lu’an, 1933: Saturday 29 April.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1933-04-29", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-04-30", "confidence": "boundary" } ], "quote": "In Lu’an, Śaṅkara Jayantī 1933 falls on Saturday 29 April. Pañcamī runs from 11:37 on Sat 29 Apr to 14:02 on Sun 30 Apr and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/gangotpatti", "festival": "gangotpatti", "name": "Gaṅgotpatti", "everyday": "Ganga Saptami", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13108, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-05-01T16:13:44+08:00", "utc": "1933-05-01T08:13:44Z", "ms": -1157211975981.203 }, "end": { "local": "1933-05-02T17:59:19+08:00", "utc": "1933-05-02T09:59:19Z", "ms": -1157119240624.941 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-01T16:13:44+08:00", "utc": "1933-05-01T08:13:44Z", "ms": -1157211975981.203 }, "end": { "local": "1933-05-02T17:59:19+08:00", "utc": "1933-05-02T09:59:19Z", "ms": -1157119240624.941 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-01", "window": { "start": { "local": "1933-05-01T11:47:16+08:00", "utc": "1933-05-01T03:47:16Z", "ms": -1157227963873.2583 }, "end": { "local": "1933-05-01T12:35:16+08:00", "utc": "1933-05-01T04:35:16Z", "ms": -1157225083873.2583 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-05-02", "window": { "start": { "local": "1933-05-02T11:47:09+08:00", "utc": "1933-05-02T03:47:09Z", "ms": -1157141571433.6965 }, "end": { "local": "1933-05-02T12:35:09+08:00", "utc": "1933-05-02T04:35:09Z", "ms": -1157138691433.6965 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 16:14 on Mon 1 May to 17:59 on Tue 2 May.", "fact": "1933-05-01T08:13:44Z → 1933-05-02T09:59:19Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 1st, 11:47–12:35 on the 2nd.", "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 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 13108 s" }, { "step": "ruling", "text": "Gaṅgotpatti, Lu’an, 1933: Tuesday 2 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gangotpatti", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-05-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-02", "confidence": "determinate" } ], "quote": "In Lu’an, Gaṅgotpatti (Ganga Saptami) 1933 falls on Tuesday 2 May. Saptamī runs from 16:14 on Mon 1 May to 17:59 on Tue 2 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-05-06", "festival": "ekadashi", "name": "Mohinī Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37144, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-05-05T19:05:51+08:00", "utc": "1933-05-05T11:05:51Z", "ms": -1156856049224.252 }, "end": { "local": "1933-05-06T17:49:01+08:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-05T19:05:51+08:00", "utc": "1933-05-05T11:05:51Z", "ms": -1156856049224.252 }, "end": { "local": "1933-05-06T17:49:01+08:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-05-06", "window": { "start": { "local": "1933-05-06T05:24:55+08:00", "utc": "1933-05-05T21:24:55Z", "ms": -1156818905468.0693 }, "end": { "local": "1933-05-06T05:24:55+08:00", "utc": "1933-05-05T21:24:55Z", "ms": -1156818905468.0693 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-05-07", "window": { "start": { "local": "1933-05-07T05:24:03+08:00", "utc": "1933-05-06T21:24:03Z", "ms": -1156732557136.8293 }, "end": { "local": "1933-05-07T05:24:03+08:00", "utc": "1933-05-06T21:24:03Z", "ms": -1156732557136.8293 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 19:06 on Fri 5 May to 17:49 on Sat 6 May.", "fact": "1933-05-05T11:05:51Z → 1933-05-06T09:49:01Z" }, { "step": "kaala", "text": "Sunrise is at 05:25 on the 6th and 05:24 on the 7th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is 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": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 37144 s" }, { "step": "ruling", "text": "Mohinī Ekādaśī, Lu’an, 1933: Saturday 6 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": "1933-05-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-06", "confidence": "determinate" } ], "quote": "In Lu’an, Mohinī Ekādaśī 1933 falls on Saturday 6 May. Ekādaśī runs from 19:06 on Fri 5 May to 17:49 on Sat 6 May and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-05-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/parashurama-dvadashi", "festival": "parashurama-dvadashi", "name": "Paraśurāma Dvādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11413, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-05-06T17:49:01+08:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 }, "end": { "local": "1933-05-07T15:44:51+08:00", "utc": "1933-05-07T07:44:51Z", "ms": -1156695308743.449 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-06T17:49:01+08:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 }, "end": { "local": "1933-05-07T15:44:51+08:00", "utc": "1933-05-07T07:44:51Z", "ms": -1156695308743.449 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-06", "window": { "start": { "local": "1933-05-06T11:46:44+08:00", "utc": "1933-05-06T03:46:44Z", "ms": -1156795996447.0347 }, "end": { "local": "1933-05-06T12:34:44+08:00", "utc": "1933-05-06T04:34:44Z", "ms": -1156793116447.0347 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-05-07", "window": { "start": { "local": "1933-05-07T11:46:39+08:00", "utc": "1933-05-07T03:46:39Z", "ms": -1156709601364.385 }, "end": { "local": "1933-05-07T12:34:39+08:00", "utc": "1933-05-07T04:34:39Z", "ms": -1156706721364.385 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 17:49 on Sat 6 May to 15:45 on Sun 7 May.", "fact": "1933-05-06T09:49:01Z → 1933-05-07T07:44:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 6th, 11:47–12:35 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11413 s" }, { "step": "ruling", "text": "Paraśurāma Dvādaśī, Lu’an, 1933: Sunday 7 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "parashurama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-07", "confidence": "determinate" } ], "quote": "In Lu’an, Paraśurāma Dvādaśī 1933 falls on Sunday 7 May. Dvādaśī runs from 17:49 on Sat 6 May to 15:45 on Sun 7 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/rukmini-dvadashi", "festival": "rukmini-dvadashi", "name": "Rukmiṇī Dvādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11413, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-05-06T17:49:01+08:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 }, "end": { "local": "1933-05-07T15:44:51+08:00", "utc": "1933-05-07T07:44:51Z", "ms": -1156695308743.449 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-06T17:49:01+08:00", "utc": "1933-05-06T09:49:01Z", "ms": -1156774259193.1797 }, "end": { "local": "1933-05-07T15:44:51+08:00", "utc": "1933-05-07T07:44:51Z", "ms": -1156695308743.449 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-06", "window": { "start": { "local": "1933-05-06T11:46:44+08:00", "utc": "1933-05-06T03:46:44Z", "ms": -1156795996447.0347 }, "end": { "local": "1933-05-06T12:34:44+08:00", "utc": "1933-05-06T04:34:44Z", "ms": -1156793116447.0347 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-05-07", "window": { "start": { "local": "1933-05-07T11:46:39+08:00", "utc": "1933-05-07T03:46:39Z", "ms": -1156709601364.385 }, "end": { "local": "1933-05-07T12:34:39+08:00", "utc": "1933-05-07T04:34:39Z", "ms": -1156706721364.385 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 17:49 on Sat 6 May to 15:45 on Sun 7 May.", "fact": "1933-05-06T09:49:01Z → 1933-05-07T07:44:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 6th, 11:47–12:35 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 11413 s" }, { "step": "ruling", "text": "Rukmiṇī Dvādaśī, Lu’an, 1933: Sunday 7 May.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rukmini-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)" } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-07", "confidence": "determinate" } ], "quote": "In Lu’an, Rukmiṇī Dvādaśī 1933 falls on Sunday 7 May. Dvādaśī runs from 17:49 on Sat 6 May to 15:45 on Sun 7 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/pradosha-vrata?on=1933-05-07", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11543, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-05-07T15:44:51+08:00", "utc": "1933-05-07T07:44:51Z", "ms": -1156695308743.449 }, "end": { "local": "1933-05-08T12:59:53+08:00", "utc": "1933-05-08T04:59:53Z", "ms": -1156618807408.4924 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-07T15:44:51+08:00", "utc": "1933-05-07T07:44:51Z", "ms": -1156695308743.449 }, "end": { "local": "1933-05-08T12:59:53+08:00", "utc": "1933-05-08T04:59:53Z", "ms": -1156618807408.4924 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-05-07", "window": { "start": { "local": "1933-05-07T18:57:14+08:00", "utc": "1933-05-07T10:57:14Z", "ms": -1156683765591.9407 }, "end": { "local": "1933-05-07T20:20:42+08:00", "utc": "1933-05-07T12:20:42Z", "ms": -1156678757868.1155 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "1933-05-08", "window": { "start": { "local": "1933-05-08T18:57:56+08:00", "utc": "1933-05-08T10:57:56Z", "ms": -1156597323806.09 }, "end": { "local": "1933-05-08T20:21:12+08:00", "utc": "1933-05-08T12:21:12Z", "ms": -1156592328235.031 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 15:45 on Sun 7 May to 13:00 on Mon 8 May.", "fact": "1933-05-07T07:44:51Z → 1933-05-08T04:59:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:57–20:21 on the 7th, 18:58–20:21 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 83 of 83 minutes on the 7th and 0 of 83 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 11543 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Sunday 7 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": "1933-05-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-07", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Sunday 7 May. Trayodaśī runs from 15:45 on Sun 7 May to 13:00 on Mon 8 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-05-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/nrisimha-chaturdashi", "festival": "nrisimha-chaturdashi", "name": "Nṛsiṃha Caturdaśī", "everyday": "Narasimha Jayanti", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21484, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-05-08T12:59:53+08:00", "utc": "1933-05-08T04:59:53Z", "ms": -1156618807408.4924 }, "end": { "local": "1933-05-09T09:42:55+08:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-08T12:59:53+08:00", "utc": "1933-05-08T04:59:53Z", "ms": -1156618807408.4924 }, "end": { "local": "1933-05-09T09:42:55+08:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-05-08", "window": { "start": { "local": "1933-05-08T18:57:56+08:00", "utc": "1933-05-08T10:57:56Z", "ms": -1156597323806.09 }, "end": { "local": "1933-05-08T20:21:12+08:00", "utc": "1933-05-08T12:21:12Z", "ms": -1156592328235.031 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "1933-05-09", "window": { "start": { "local": "1933-05-09T18:58:38+08:00", "utc": "1933-05-09T10:58:38Z", "ms": -1156510882078.6914 }, "end": { "local": "1933-05-09T20:21:42+08:00", "utc": "1933-05-09T12:21:42Z", "ms": -1156505898493.8174 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:00 on Mon 8 May to 09:43 on Tue 9 May.", "fact": "1933-05-08T04:59:53Z → 1933-05-09T01:42:55Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:58–20:21 on the 8th, 18:59–20:22 on the 9th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 83 of 83 minutes on the 8th and 0 of 83 on the 9th.", "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 21484 s" }, { "step": "ruling", "text": "Nṛsiṃha Caturdaśī, Lu’an, 1933: Monday 8 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": "1933-05-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-08", "confidence": "determinate" } ], "quote": "In Lu’an, Nṛsiṃha Caturdaśī (Narasimha Jayanti) 1933 falls on Monday 8 May. Caturdaśī runs from 13:00 on Mon 8 May to 09:43 on Tue 9 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/buddha-purnima", "festival": "buddha-purnima", "name": "Buddha Pūrṇimā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7416, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-05-09T09:42:55+08:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 }, "end": { "local": "1933-05-10T06:04:16+08:00", "utc": "1933-05-09T22:04:16Z", "ms": -1156470943981.9604 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-09T09:42:55+08:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 }, "end": { "local": "1933-05-10T06:04:16+08:00", "utc": "1933-05-09T22:04:16Z", "ms": -1156470943981.9604 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-09", "window": { "start": { "local": "1933-05-09T11:46:30+08:00", "utc": "1933-05-09T03:46:30Z", "ms": -1156536809550.919 }, "end": { "local": "1933-05-09T12:34:30+08:00", "utc": "1933-05-09T04:34:30Z", "ms": -1156533929550.919 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-10", "window": { "start": { "local": "1933-05-10T11:46:27+08:00", "utc": "1933-05-10T03:46:27Z", "ms": -1156450412806.103 }, "end": { "local": "1933-05-10T12:34:27+08:00", "utc": "1933-05-10T04:34:27Z", "ms": -1156447532806.103 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:43 on Tue 9 May to 06:04 on Wed 10 May.", "fact": "1933-05-09T01:42:55Z → 1933-05-09T22:04:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 9th, 11:46–12:34 on the 10th.", "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 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7416 s" }, { "step": "ruling", "text": "Buddha Pūrṇimā, Lu’an, 1933: Tuesday 9 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": "1933-05-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-09", "confidence": "determinate" } ], "quote": "In Lu’an, Buddha Pūrṇimā 1933 falls on Tuesday 9 May. Pūrṇimā runs from 09:43 on Tue 9 May to 06:04 on Wed 10 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sampat-gauri-vrata", "festival": "sampat-gauri-vrata", "name": "Sampat Gaurī Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7416, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-05-09T09:42:55+08:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 }, "end": { "local": "1933-05-10T06:04:16+08:00", "utc": "1933-05-09T22:04:16Z", "ms": -1156470943981.9604 }, "month": { "amanta": 1, "purnimanta": 1, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Vaiśākha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-09T09:42:55+08:00", "utc": "1933-05-09T01:42:55Z", "ms": -1156544225373.1348 }, "end": { "local": "1933-05-10T06:04:16+08:00", "utc": "1933-05-09T22:04:16Z", "ms": -1156470943981.9604 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-09", "window": { "start": { "local": "1933-05-09T11:46:30+08:00", "utc": "1933-05-09T03:46:30Z", "ms": -1156536809550.919 }, "end": { "local": "1933-05-09T12:34:30+08:00", "utc": "1933-05-09T04:34:30Z", "ms": -1156533929550.919 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-10", "window": { "start": { "local": "1933-05-10T11:46:27+08:00", "utc": "1933-05-10T03:46:27Z", "ms": -1156450412806.103 }, "end": { "local": "1933-05-10T12:34:27+08:00", "utc": "1933-05-10T04:34:27Z", "ms": -1156447532806.103 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 09:43 on Tue 9 May to 06:04 on Wed 10 May.", "fact": "1933-05-09T01:42:55Z → 1933-05-09T22:04:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 9th, 11:46–12:34 on the 10th.", "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 9th and 0 of 48 on the 10th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 7416 s" }, { "step": "ruling", "text": "Sampat Gaurī Vrata, Lu’an, 1933: Tuesday 9 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": "1933-05-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-09", "confidence": "determinate" } ], "quote": "In Lu’an, Sampat Gaurī Vrata 1933 falls on Tuesday 9 May. Pūrṇimā runs from 09:43 on Tue 9 May to 06:04 on Wed 10 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-05-12", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12084, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-05-12T18:49:34+08:00", "utc": "1933-05-12T10:49:34Z", "ms": -1156252226362.6516 }, "end": { "local": "1933-05-13T15:34:26+08:00", "utc": "1933-05-13T07:34:26Z", "ms": -1156177534483.317 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-12T18:49:34+08:00", "utc": "1933-05-12T10:49:34Z", "ms": -1156252226362.6516 }, "end": { "local": "1933-05-13T15:34:26+08:00", "utc": "1933-05-13T07:34:26Z", "ms": -1156177534483.317 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-05-12", "window": { "start": { "local": "1933-05-12T22:10:58+08:00", "utc": "1933-05-12T14:10:58Z", "ms": -1156240142421.2366 }, "end": { "local": "1933-05-12T22:10:58+08:00", "utc": "1933-05-12T14:10:58Z", "ms": -1156240142421.2366 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-05-13", "window": { "start": { "local": "1933-05-13T23:10:20+08:00", "utc": "1933-05-13T15:10:20Z", "ms": -1156150180470.815 }, "end": { "local": "1933-05-13T23:10:20+08:00", "utc": "1933-05-13T15:10:20Z", "ms": -1156150180470.815 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 18:50 on Fri 12 May to 15:34 on Sat 13 May.", "fact": "1933-05-12T10:49:34Z → 1933-05-13T07:34:26Z" }, { "step": "kaala", "text": "Moonrise is at 22:11 on the 12th and 23:10 on the 13th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 12th and is not on the 13th.", "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 12084 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Friday 12 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": "1933-05-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-12", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Friday 12 May. Caturthī runs from 18:50 on Fri 12 May to 15:34 on Sat 13 May and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-05-12", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ekadashi?on=1933-05-20", "festival": "ekadashi", "name": "Aparā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14042, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-05-19T09:09:21+08:00", "utc": "1933-05-19T01:09:21Z", "ms": -1155682238731.5422 }, "end": { "local": "1933-05-20T10:17:09+08:00", "utc": "1933-05-20T02:17:09Z", "ms": -1155591770813.9668 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-19T09:09:21+08:00", "utc": "1933-05-19T01:09:21Z", "ms": -1155682238731.5422 }, "end": { "local": "1933-05-20T10:17:09+08:00", "utc": "1933-05-20T02:17:09Z", "ms": -1155591770813.9668 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-05-19", "window": { "start": { "local": "1933-05-19T05:15:19+08:00", "utc": "1933-05-18T21:15:19Z", "ms": -1155696281208.4646 }, "end": { "local": "1933-05-19T05:15:19+08:00", "utc": "1933-05-18T21:15:19Z", "ms": -1155696281208.4646 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-05-20", "window": { "start": { "local": "1933-05-20T05:14:44+08:00", "utc": "1933-05-19T21:14:44Z", "ms": -1155609916219.1 }, "end": { "local": "1933-05-20T05:14:44+08:00", "utc": "1933-05-19T21:14:44Z", "ms": -1155609916219.1 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 09:09 on Fri 19 May to 10:17 on Sat 20 May.", "fact": "1933-05-19T01:09:21Z → 1933-05-20T02:17:09Z" }, { "step": "kaala", "text": "Sunrise is at 05:15 on the 19th and 05:15 on the 20th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 19th and is on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 14042 s" }, { "step": "ruling", "text": "Aparā Ekādaśī, Lu’an, 1933: Saturday 20 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": "1933-05-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-20", "confidence": "determinate" } ], "quote": "In Lu’an, Aparā Ekādaśī 1933 falls on Saturday 20 May. Ekādaśī runs from 09:09 on Fri 19 May to 10:17 on Sat 20 May and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-05-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-05-21", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19479, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-05-21T11:50:17+08:00", "utc": "1933-05-21T03:50:17Z", "ms": -1155499783066.97 }, "end": { "local": "1933-05-22T13:42:49+08:00", "utc": "1933-05-22T05:42:49Z", "ms": -1155406631230.684 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-21T11:50:17+08:00", "utc": "1933-05-21T03:50:17Z", "ms": -1155499783066.97 }, "end": { "local": "1933-05-22T13:42:49+08:00", "utc": "1933-05-22T05:42:49Z", "ms": -1155406631230.684 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-05-21", "window": { "start": { "local": "1933-05-21T19:06:49+08:00", "utc": "1933-05-21T11:06:49Z", "ms": -1155473591424.538 }, "end": { "local": "1933-05-21T20:27:43+08:00", "utc": "1933-05-21T12:27:43Z", "ms": -1155468736833.3157 } }, "covered_min": 81, "window_min": 81, "qualifies": true }, { "local_date": "1933-05-22", "window": { "start": { "local": "1933-05-22T19:07:28+08:00", "utc": "1933-05-22T11:07:28Z", "ms": -1155387152060.3125 }, "end": { "local": "1933-05-22T20:28:13+08:00", "utc": "1933-05-22T12:28:13Z", "ms": -1155382306816.1833 } }, "covered_min": 0, "window_min": 81, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 11:50 on Sun 21 May to 13:43 on Mon 22 May.", "fact": "1933-05-21T03:50:17Z → 1933-05-22T05:42:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:07–20:28 on the 21st, 19:07–20:28 on the 22nd.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 81 of 81 minutes on the 21st and 0 of 81 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19479 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Sunday 21 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": "1933-05-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-21", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Sunday 21 May. Trayodaśī runs from 11:50 on Sun 21 May to 13:43 on Mon 22 May and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-05-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shivaratri?on=1933-05-22", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28599, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-05-22T13:42:49+08:00", "utc": "1933-05-22T05:42:49Z", "ms": -1155406631230.684 }, "end": { "local": "1933-05-23T15:49:43+08:00", "utc": "1933-05-23T07:49:43Z", "ms": -1155312616964.0088 }, "month": { "amanta": 1, "purnimanta": 2, "adhika": false, "amanta_name": "Vaiśākha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-22T13:42:49+08:00", "utc": "1933-05-22T05:42:49Z", "ms": -1155406631230.684 }, "end": { "local": "1933-05-23T15:49:43+08:00", "utc": "1933-05-23T07:49:43Z", "ms": -1155312616964.0088 } }, "kaala": "nishita", "days": [ { "local_date": "1933-05-22", "window": { "start": { "local": "1933-05-22T23:46:18+08:00", "utc": "1933-05-22T15:46:18Z", "ms": -1155370422394.8284 }, "end": { "local": "1933-05-23T00:34:18+08:00", "utc": "1933-05-22T16:34:18Z", "ms": -1155367542394.8284 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-23", "window": { "start": { "local": "1933-05-23T23:46:22+08:00", "utc": "1933-05-23T15:46:22Z", "ms": -1155284017545.019 }, "end": { "local": "1933-05-24T00:34:22+08:00", "utc": "1933-05-23T16:34:22Z", "ms": -1155281137545.019 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 13:43 on Mon 22 May to 15:50 on Tue 23 May.", "fact": "1933-05-22T05:42:49Z → 1933-05-23T07:49:43Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:46–00:34 on the 22nd, 23:46–00:34 on the 23rd.", "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 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 28599 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Monday 22 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": "1933-05-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-22", "confidence": "determinate" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Monday 22 May. Caturdaśī runs from 13:43 on Mon 22 May to 15:50 on Tue 23 May and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-05-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/rambha-tritiya", "festival": "rambha-tritiya", "name": "Rambhā Tṛtīyā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37301, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-05-26T22:56:33+08:00", "utc": "1933-05-26T14:56:33Z", "ms": -1155027806720.6428 }, "end": { "local": "1933-05-28T01:19:42+08:00", "utc": "1933-05-27T17:19:42Z", "ms": -1154932818222.0774 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-26T22:56:33+08:00", "utc": "1933-05-26T14:56:33Z", "ms": -1155027806720.6428 }, "end": { "local": "1933-05-28T01:19:42+08:00", "utc": "1933-05-27T17:19:42Z", "ms": -1154932818222.0774 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-26", "window": { "start": { "local": "1933-05-26T11:46:53+08:00", "utc": "1933-05-26T03:46:53Z", "ms": -1155067987439.7327 }, "end": { "local": "1933-05-26T12:34:53+08:00", "utc": "1933-05-26T04:34:53Z", "ms": -1155065107439.7327 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-05-27", "window": { "start": { "local": "1933-05-27T11:46:59+08:00", "utc": "1933-05-27T03:46:59Z", "ms": -1154981581309.329 }, "end": { "local": "1933-05-27T12:34:59+08:00", "utc": "1933-05-27T04:34:59Z", "ms": -1154978701309.329 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 22:57 on Fri 26 May to 01:20 on Sun 28 May.", "fact": "1933-05-26T14:56:33Z → 1933-05-27T17:19:42Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 26th, 11:47–12:35 on the 27th.", "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 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 37301 s" }, { "step": "ruling", "text": "Rambhā Tṛtīyā, Lu’an, 1933: Saturday 27 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": "1933-05-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-27", "confidence": "determinate" } ], "quote": "In Lu’an, Rambhā Tṛtīyā 1933 falls on Saturday 27 May. Tṛtīyā runs from 22:57 on Fri 26 May to 01:20 on Sun 28 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-05-28", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29655, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-05-28T01:19:42+08:00", "utc": "1933-05-27T17:19:42Z", "ms": -1154932818222.0774 }, "end": { "local": "1933-05-29T03:32:58+08:00", "utc": "1933-05-28T19:32:58Z", "ms": -1154838422367.9436 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-28T01:19:42+08:00", "utc": "1933-05-27T17:19:42Z", "ms": -1154932818222.0774 }, "end": { "local": "1933-05-29T03:32:58+08:00", "utc": "1933-05-28T19:32:58Z", "ms": -1154838422367.9436 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-28", "window": { "start": { "local": "1933-05-28T11:47:05+08:00", "utc": "1933-05-28T03:47:05Z", "ms": -1154895174714.7717 }, "end": { "local": "1933-05-28T12:35:05+08:00", "utc": "1933-05-28T04:35:05Z", "ms": -1154892294714.7717 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-29", "window": { "start": { "local": "1933-05-29T11:47:12+08:00", "utc": "1933-05-29T03:47:12Z", "ms": -1154808767671.8223 }, "end": { "local": "1933-05-29T12:35:12+08:00", "utc": "1933-05-29T04:35:12Z", "ms": -1154805887671.8223 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 01:20 on Sun 28 May to 03:33 on Mon 29 May.", "fact": "1933-05-27T17:19:42Z → 1933-05-28T19:32:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 28th, 11:47–12:35 on the 29th.", "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 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29655 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Lu’an, 1933: Sunday 28 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": "1933-05-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-28", "confidence": "determinate" } ], "quote": "In Lu’an, Vināyaka Caturthī 1933 falls on Sunday 28 May. Caturthī runs from 01:20 on Sun 28 May to 03:33 on Mon 29 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-05-28", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/aranya-gauri-vrata", "festival": "aranya-gauri-vrata", "name": "Araṇya Gaurī Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17576, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-05-30T05:27:44+08:00", "utc": "1933-05-29T21:27:44Z", "ms": -1154745135641.072 }, "end": { "local": "1933-05-31T06:54:32+08:00", "utc": "1933-05-30T22:54:32Z", "ms": -1154653528405.6868 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-30T05:27:44+08:00", "utc": "1933-05-29T21:27:44Z", "ms": -1154745135641.072 }, "end": { "local": "1933-05-31T06:54:32+08:00", "utc": "1933-05-30T22:54:32Z", "ms": -1154653528405.6868 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-30", "window": { "start": { "local": "1933-05-30T11:47:20+08:00", "utc": "1933-05-30T03:47:20Z", "ms": -1154722360196.6667 }, "end": { "local": "1933-05-30T12:35:20+08:00", "utc": "1933-05-30T04:35:20Z", "ms": -1154719480196.6667 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-31", "window": { "start": { "local": "1933-05-31T11:47:28+08:00", "utc": "1933-05-31T03:47:28Z", "ms": -1154635952305.8062 }, "end": { "local": "1933-05-31T12:35:28+08:00", "utc": "1933-05-31T04:35:28Z", "ms": -1154633072305.8062 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 05:28 on Tue 30 May to 06:55 on Wed 31 May.", "fact": "1933-05-29T21:27:44Z → 1933-05-30T22:54:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 30th, 11:47–12:35 on the 31st.", "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 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 17576 s" }, { "step": "ruling", "text": "Araṇya Gaurī Vrata, Lu’an, 1933: Tuesday 30 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": "1933-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-30", "confidence": "determinate" } ], "quote": "In Lu’an, Araṇya Gaurī Vrata 1933 falls on Tuesday 30 May. Ṣaṣṭhī runs from 05:28 on Tue 30 May to 06:55 on Wed 31 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/skanda-shashthi-jyaishtha", "festival": "skanda-shashthi-jyaishtha", "name": "Skanda Ṣaṣṭhī (Jyaiṣṭha)", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-05-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17576, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-05-30T05:27:44+08:00", "utc": "1933-05-29T21:27:44Z", "ms": -1154745135641.072 }, "end": { "local": "1933-05-31T06:54:32+08:00", "utc": "1933-05-30T22:54:32Z", "ms": -1154653528405.6868 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-05-30T05:27:44+08:00", "utc": "1933-05-29T21:27:44Z", "ms": -1154745135641.072 }, "end": { "local": "1933-05-31T06:54:32+08:00", "utc": "1933-05-30T22:54:32Z", "ms": -1154653528405.6868 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-05-30", "window": { "start": { "local": "1933-05-30T11:47:20+08:00", "utc": "1933-05-30T03:47:20Z", "ms": -1154722360196.6667 }, "end": { "local": "1933-05-30T12:35:20+08:00", "utc": "1933-05-30T04:35:20Z", "ms": -1154719480196.6667 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-05-31", "window": { "start": { "local": "1933-05-31T11:47:28+08:00", "utc": "1933-05-31T03:47:28Z", "ms": -1154635952305.8062 }, "end": { "local": "1933-05-31T12:35:28+08:00", "utc": "1933-05-31T04:35:28Z", "ms": -1154633072305.8062 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 05:28 on Tue 30 May to 06:55 on Wed 31 May.", "fact": "1933-05-29T21:27:44Z → 1933-05-30T22:54:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 30th, 11:47–12:35 on the 31st.", "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 30th and 0 of 48 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 17576 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī (Jyaiṣṭha), Lu’an, 1933: Tuesday 30 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": "1933-05-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-05-30", "confidence": "determinate" } ], "quote": "In Lu’an, Skanda Ṣaṣṭhī (Jyaiṣṭha) 1933 falls on Tuesday 30 May. Ṣaṣṭhī runs from 05:28 on Tue 30 May to 06:55 on Wed 31 May and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-06-04", "festival": "ekadashi", "name": "Nirjalā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1531, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-06-04T05:34:23+08:00", "utc": "1933-06-03T21:34:23Z", "ms": -1154312736708.793 }, "end": { "local": "1933-06-05T03:16:36+08:00", "utc": "1933-06-04T19:16:36Z", "ms": -1154234603594.4546 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-04T05:34:23+08:00", "utc": "1933-06-03T21:34:23Z", "ms": -1154312736708.793 }, "end": { "local": "1933-06-05T03:16:36+08:00", "utc": "1933-06-04T19:16:36Z", "ms": -1154234603594.4546 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-06-04", "window": { "start": { "local": "1933-06-04T05:08:53+08:00", "utc": "1933-06-03T21:08:53Z", "ms": -1154314267474.3643 }, "end": { "local": "1933-06-04T05:08:53+08:00", "utc": "1933-06-03T21:08:53Z", "ms": -1154314267474.3643 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-06-05", "window": { "start": { "local": "1933-06-05T05:08:41+08:00", "utc": "1933-06-04T21:08:41Z", "ms": -1154227879108.8538 }, "end": { "local": "1933-06-05T05:08:41+08:00", "utc": "1933-06-04T21:08:41Z", "ms": -1154227879108.8538 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:34 on Sun 4 Jun to 03:17 on Mon 5 Jun.", "fact": "1933-06-03T21:34:23Z → 1933-06-04T19:16:36Z" }, { "step": "kaala", "text": "Sunrise is at 05:09 on the 4th and 05:09 on the 5th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 4th and is not on the 5th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither sunrise qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 1531 s" }, { "step": "ruling", "text": "Nirjalā Ekādaśī, Lu’an, 1933: Sunday 4 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": "1933-06-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-04", "confidence": "determinate" } ], "quote": "In Lu’an, Nirjalā Ekādaśī 1933 falls on Sunday 4 June. Ekādaśī runs from 05:34 on Sun 4 Jun to 03:17 on Mon 5 Jun, and is current at sunrise on neither day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-06-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shri-rama-dvadashi", "festival": "shri-rama-dvadashi", "name": "Śrī Rāma Dvādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30696, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-06-05T03:16:36+08:00", "utc": "1933-06-04T19:16:36Z", "ms": -1154234603594.4546 }, "end": { "local": "1933-06-06T00:19:23+08:00", "utc": "1933-06-05T16:19:23Z", "ms": -1154158836739.9253 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-05T03:16:36+08:00", "utc": "1933-06-04T19:16:36Z", "ms": -1154234603594.4546 }, "end": { "local": "1933-06-06T00:19:23+08:00", "utc": "1933-06-05T16:19:23Z", "ms": -1154158836739.9253 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-06-05", "window": { "start": { "local": "1933-06-05T11:48:13+08:00", "utc": "1933-06-05T03:48:13Z", "ms": -1154203907196.6892 }, "end": { "local": "1933-06-05T12:36:13+08:00", "utc": "1933-06-05T04:36:13Z", "ms": -1154201027196.6892 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-06-06", "window": { "start": { "local": "1933-06-06T11:48:23+08:00", "utc": "1933-06-06T03:48:23Z", "ms": -1154117497155.9526 }, "end": { "local": "1933-06-06T12:36:23+08:00", "utc": "1933-06-06T04:36:23Z", "ms": -1154114617155.9526 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:17 on Mon 5 Jun to 00:19 on Tue 6 Jun.", "fact": "1933-06-04T19:16:36Z → 1933-06-05T16:19:23Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 5th, 11:48–12:36 on the 6th.", "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 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 30696 s" }, { "step": "ruling", "text": "Śrī Rāma Dvādaśī, Lu’an, 1933: Monday 5 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shri-rama-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 12 Sri Rama dvadasi (purvaviddha), Campaka dvadasi (Orissa) (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-06-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-05", "confidence": "determinate" } ], "quote": "In Lu’an, Śrī Rāma Dvādaśī 1933 falls on Monday 5 June. Dvādaśī runs from 03:17 on Mon 5 Jun to 00:19 on Tue 6 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/pradosha-vrata?on=1933-06-06", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 970, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-06-06T00:19:23+08:00", "utc": "1933-06-05T16:19:23Z", "ms": -1154158836739.9253 }, "end": { "local": "1933-06-06T20:51:22+08:00", "utc": "1933-06-06T12:51:22Z", "ms": -1154084918159.0088 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-06T00:19:23+08:00", "utc": "1933-06-05T16:19:23Z", "ms": -1154158836739.9253 }, "end": { "local": "1933-06-06T20:51:22+08:00", "utc": "1933-06-06T12:51:22Z", "ms": -1154084918159.0088 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-06-05", "window": { "start": { "local": "1933-06-05T19:15:45+08:00", "utc": "1933-06-05T11:15:45Z", "ms": -1154177055284.5247 }, "end": { "local": "1933-06-05T20:34:47+08:00", "utc": "1933-06-05T12:34:47Z", "ms": -1154172313148.834 } }, "covered_min": 0, "window_min": 79, "qualifies": false }, { "local_date": "1933-06-06", "window": { "start": { "local": "1933-06-06T19:16:15+08:00", "utc": "1933-06-06T11:16:15Z", "ms": -1154090625045.061 }, "end": { "local": "1933-06-06T20:35:12+08:00", "utc": "1933-06-06T12:35:12Z", "ms": -1154085888099.0552 } }, "covered_min": 79, "window_min": 79, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 00:19 on Tue 6 Jun to 20:51 on Tue 6 Jun.", "fact": "1933-06-05T16:19:23Z → 1933-06-06T12:51:22Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:16–20:35 on the 5th, 19:16–20:35 on the 6th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 79 minutes on the 5th and 79 of 79 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 970 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Tuesday 6 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": "1933-06-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-06", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Tuesday 6 June. Trayodaśī runs from 00:19 on Tue 6 Jun to 20:51 on Tue 6 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-06-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/vata-savitri-vrata", "festival": "vata-savitri-vrata", "name": "Vaṭa Sāvitrī Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8040, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-06-07T17:02:44+08:00", "utc": "1933-06-07T09:02:44Z", "ms": -1154012235891.007 }, "end": { "local": "1933-06-08T13:04:36+08:00", "utc": "1933-06-08T05:04:36Z", "ms": -1153940124400.6794 }, "month": { "amanta": 2, "purnimanta": 2, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Jyeṣṭha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-07T17:02:44+08:00", "utc": "1933-06-07T09:02:44Z", "ms": -1154012235891.007 }, "end": { "local": "1933-06-08T13:04:36+08:00", "utc": "1933-06-08T05:04:36Z", "ms": -1153940124400.6794 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-06-07", "window": { "start": { "local": "1933-06-07T19:16:44+08:00", "utc": "1933-06-07T11:16:44Z", "ms": -1154004195670.9573 }, "end": { "local": "1933-06-07T20:35:36+08:00", "utc": "1933-06-07T12:35:36Z", "ms": -1153999463602.8628 } }, "covered_min": 79, "window_min": 79, "qualifies": true }, { "local_date": "1933-06-08", "window": { "start": { "local": "1933-06-08T19:17:13+08:00", "utc": "1933-06-08T11:17:13Z", "ms": -1153917767188.6204 }, "end": { "local": "1933-06-08T20:36:00+08:00", "utc": "1933-06-08T12:36:00Z", "ms": -1153913039683.4185 } }, "covered_min": 0, "window_min": 79, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 17:03 on Wed 7 Jun to 13:05 on Thu 8 Jun.", "fact": "1933-06-07T09:02:44Z → 1933-06-08T05:04:36Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:17–20:36 on the 7th, 19:17–20:36 on the 8th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 79 of 79 minutes on the 7th and 0 of 79 on the 8th.", "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 8040 s" }, { "step": "ruling", "text": "Vaṭa Sāvitrī Vrata, Lu’an, 1933: Wednesday 7 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": "1933-06-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-07", "confidence": "determinate" } ], "quote": "In Lu’an, Vaṭa Sāvitrī Vrata 1933 falls on Wednesday 7 June. Pūrṇimā runs from 17:03 on Wed 7 Jun to 13:05 on Thu 8 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-06-11", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2747, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-06-11T02:06:04+08:00", "utc": "1933-06-10T18:06:04Z", "ms": -1153720436030.8499 }, "end": { "local": "1933-06-11T23:20:02+08:00", "utc": "1933-06-11T15:20:02Z", "ms": -1153643998187.7415 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-11T02:06:04+08:00", "utc": "1933-06-10T18:06:04Z", "ms": -1153720436030.8499 }, "end": { "local": "1933-06-11T23:20:02+08:00", "utc": "1933-06-11T15:20:02Z", "ms": -1153643998187.7415 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-06-10", "window": { "start": { "local": "1933-06-10T21:49:08+08:00", "utc": "1933-06-10T13:49:08Z", "ms": -1153735851586.9138 }, "end": { "local": "1933-06-10T21:49:08+08:00", "utc": "1933-06-10T13:49:08Z", "ms": -1153735851586.9138 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-06-11", "window": { "start": { "local": "1933-06-11T22:34:15+08:00", "utc": "1933-06-11T14:34:15Z", "ms": -1153646745487.021 }, "end": { "local": "1933-06-11T22:34:15+08:00", "utc": "1933-06-11T14:34:15Z", "ms": -1153646745487.021 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:06 on Sun 11 Jun to 23:20 on Sun 11 Jun.", "fact": "1933-06-10T18:06:04Z → 1933-06-11T15:20:02Z" }, { "step": "kaala", "text": "Moonrise is at 21:49 on the 10th and 22:34 on the 11th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 10th and is on the 11th.", "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 2747 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Sunday 11 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": "1933-06-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-11", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Sunday 11 June. Caturthī runs from 02:06 on Sun 11 Jun to 23:20 on Sun 11 Jun and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-06-11", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ekadashi?on=1933-06-18", "festival": "ekadashi", "name": "Yoginī Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18502, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-06-17T22:04:23+08:00", "utc": "1933-06-17T14:04:23Z", "ms": -1153130136650.9304 }, "end": { "local": "1933-06-19T00:00:10+08:00", "utc": "1933-06-18T16:00:10Z", "ms": -1153036790383.3506 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-17T22:04:23+08:00", "utc": "1933-06-17T14:04:23Z", "ms": -1153130136650.9304 }, "end": { "local": "1933-06-19T00:00:10+08:00", "utc": "1933-06-18T16:00:10Z", "ms": -1153036790383.3506 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-06-18", "window": { "start": { "local": "1933-06-18T05:08:23+08:00", "utc": "1933-06-17T21:08:23Z", "ms": -1153104697301.7036 }, "end": { "local": "1933-06-18T05:08:23+08:00", "utc": "1933-06-17T21:08:23Z", "ms": -1153104697301.7036 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-06-19", "window": { "start": { "local": "1933-06-19T05:08:31+08:00", "utc": "1933-06-18T21:08:31Z", "ms": -1153018288762.6584 }, "end": { "local": "1933-06-19T05:08:31+08:00", "utc": "1933-06-18T21:08:31Z", "ms": -1153018288762.6584 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 22:04 on Sat 17 Jun to 00:00 on Mon 19 Jun.", "fact": "1933-06-17T14:04:23Z → 1933-06-18T16:00:10Z" }, { "step": "kaala", "text": "Sunrise is at 05:08 on the 18th and 05:09 on the 19th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 18th and is not on the 19th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18502 s" }, { "step": "ruling", "text": "Yoginī Ekādaśī, Lu’an, 1933: Sunday 18 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": "1933-06-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-18", "confidence": "determinate" } ], "quote": "In Lu’an, Yoginī Ekādaśī 1933 falls on Sunday 18 June. Ekādaśī runs from 22:04 on Sat 17 Jun to 00:00 on Mon 19 Jun and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-06-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-06-20", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19995, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-06-20T02:12:53+08:00", "utc": "1933-06-19T18:12:53Z", "ms": -1152942427338.0403 }, "end": { "local": "1933-06-21T04:34:49+08:00", "utc": "1933-06-20T20:34:49Z", "ms": -1152847510558.768 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-20T02:12:53+08:00", "utc": "1933-06-19T18:12:53Z", "ms": -1152942427338.0403 }, "end": { "local": "1933-06-21T04:34:49+08:00", "utc": "1933-06-20T20:34:49Z", "ms": -1152847510558.768 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-06-19", "window": { "start": { "local": "1933-06-19T19:21:19+08:00", "utc": "1933-06-19T11:21:19Z", "ms": -1152967120780.4114 }, "end": { "local": "1933-06-19T20:39:38+08:00", "utc": "1933-06-19T12:39:38Z", "ms": -1152962421861.2883 } }, "covered_min": 0, "window_min": 78, "qualifies": false }, { "local_date": "1933-06-20", "window": { "start": { "local": "1933-06-20T19:21:35+08:00", "utc": "1933-06-20T11:21:35Z", "ms": -1152880705230.3486 }, "end": { "local": "1933-06-20T20:39:53+08:00", "utc": "1933-06-20T12:39:53Z", "ms": -1152876006892.9014 } }, "covered_min": 78, "window_min": 78, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:13 on Tue 20 Jun to 04:35 on Wed 21 Jun.", "fact": "1933-06-19T18:12:53Z → 1933-06-20T20:34:49Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:21–20:40 on the 19th, 19:22–20:40 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 78 minutes on the 19th and 78 of 78 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19995 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Tuesday 20 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": "1933-06-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-20", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Tuesday 20 June. Trayodaśī runs from 02:13 on Tue 20 Jun to 04:35 on Wed 21 Jun and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-06-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shivaratri?on=1933-06-21", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14136, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-06-21T04:34:49+08:00", "utc": "1933-06-20T20:34:49Z", "ms": -1152847510558.768 }, "end": { "local": "1933-06-22T06:59:39+08:00", "utc": "1933-06-21T22:59:39Z", "ms": -1152752421398.1328 }, "month": { "amanta": 2, "purnimanta": 3, "adhika": false, "amanta_name": "Jyeṣṭha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-21T04:34:49+08:00", "utc": "1933-06-20T20:34:49Z", "ms": -1152847510558.768 }, "end": { "local": "1933-06-22T06:59:39+08:00", "utc": "1933-06-21T22:59:39Z", "ms": -1152752421398.1328 } }, "kaala": "nishita", "days": [ { "local_date": "1933-06-20", "window": { "start": { "local": "1933-06-20T23:51:14+08:00", "utc": "1933-06-20T15:51:14Z", "ms": -1152864526464.9211 }, "end": { "local": "1933-06-21T00:39:14+08:00", "utc": "1933-06-20T16:39:14Z", "ms": -1152861646464.9211 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-06-21", "window": { "start": { "local": "1933-06-21T23:51:27+08:00", "utc": "1933-06-21T15:51:27Z", "ms": -1152778113087.5186 }, "end": { "local": "1933-06-22T00:39:27+08:00", "utc": "1933-06-21T16:39:27Z", "ms": -1152775233087.5186 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 04:35 on Wed 21 Jun to 07:00 on Thu 22 Jun.", "fact": "1933-06-20T20:34:49Z → 1933-06-21T22:59:39Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:51–00:39 on the 20th, 23:51–00:39 on the 21st.", "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 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14136 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Wednesday 21 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": "1933-06-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-21", "confidence": "determinate" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Wednesday 21 June. Caturdaśī runs from 04:35 on Wed 21 Jun to 07:00 on Thu 22 Jun and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-06-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/rathayatra", "festival": "rathayatra", "name": "Rathayātrā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 835, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1933-06-24T11:38:03+08:00", "utc": "1933-06-24T03:38:03Z", "ms": -1152562916552.6995 }, "end": { "local": "1933-06-25T13:42:44+08:00", "utc": "1933-06-25T05:42:44Z", "ms": -1152469035748.632 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-24T11:38:03+08:00", "utc": "1933-06-24T03:38:03Z", "ms": -1152562916552.6995 }, "end": { "local": "1933-06-25T13:42:44+08:00", "utc": "1933-06-25T05:42:44Z", "ms": -1152469035748.632 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-06-24", "window": { "start": { "local": "1933-06-24T11:51:59+08:00", "utc": "1933-06-24T03:51:59Z", "ms": -1152562081259.8997 }, "end": { "local": "1933-06-24T12:39:59+08:00", "utc": "1933-06-24T04:39:59Z", "ms": -1152559201259.8997 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-06-25", "window": { "start": { "local": "1933-06-25T11:52:11+08:00", "utc": "1933-06-25T03:52:11Z", "ms": -1152475668708.1135 }, "end": { "local": "1933-06-25T12:40:11+08:00", "utc": "1933-06-25T04:40:11Z", "ms": -1152472788708.1135 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 11:38 on Sat 24 Jun to 13:43 on Sun 25 Jun.", "fact": "1933-06-24T03:38:03Z → 1933-06-25T05:42:44Z" }, { "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": "Dvitīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 24th and 48 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Both middays qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 835 s" }, { "step": "ruling", "text": "Rathayātrā, Lu’an, 1933: Sunday 25 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": "1933-06-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-25", "confidence": "boundary" } ], "quote": "In Lu’an, Rathayātrā 1933 falls on Sunday 25 June. Dvitīyā runs from 11:38 on Sat 24 Jun to 13:43 on Sun 25 Jun and covers all 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/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-06-27", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10249, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-06-26T15:31:12+08:00", "utc": "1933-06-26T07:31:12Z", "ms": -1152376127544.4282 }, "end": { "local": "1933-06-27T16:57:39+08:00", "utc": "1933-06-27T08:57:39Z", "ms": -1152284540742.342 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-26T15:31:12+08:00", "utc": "1933-06-26T07:31:12Z", "ms": -1152376127544.4282 }, "end": { "local": "1933-06-27T16:57:39+08:00", "utc": "1933-06-27T08:57:39Z", "ms": -1152284540742.342 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-06-26", "window": { "start": { "local": "1933-06-26T11:52:24+08:00", "utc": "1933-06-26T03:52:24Z", "ms": -1152389256269.3755 }, "end": { "local": "1933-06-26T12:40:24+08:00", "utc": "1933-06-26T04:40:24Z", "ms": -1152386376269.3755 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-06-27", "window": { "start": { "local": "1933-06-27T11:52:36+08:00", "utc": "1933-06-27T03:52:36Z", "ms": -1152302843970.182 }, "end": { "local": "1933-06-27T12:40:36+08:00", "utc": "1933-06-27T04:40:36Z", "ms": -1152299963970.182 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 15:31 on Mon 26 Jun to 16:58 on Tue 27 Jun.", "fact": "1933-06-26T07:31:12Z → 1933-06-27T08:57:39Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 26th, 11:53–12:41 on the 27th.", "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 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10249 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Lu’an, 1933: Tuesday 27 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "vinayaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The sukla caturthi in each month is called Ganesa caturthi or Vinayaka caturthi. It is observed at madhyahna. The chief among them are caturthis of Bhadrapada and Magha. Similarly the krsna caturthi in each month is called Sankasta caturthi, to be observed on the day when the tithi is current at moonrise. It is called Angaraka caturthi if it falls on Tuesday." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-06-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-27", "confidence": "determinate" } ], "quote": "In Lu’an, Vināyaka Caturthī 1933 falls on Tuesday 27 June. Caturthī runs from 15:31 on Mon 26 Jun to 16:58 on Tue 27 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-06-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/skanda-panchami", "festival": "skanda-panchami", "name": "Skanda Pañcamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 15423, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-06-27T16:57:39+08:00", "utc": "1933-06-27T08:57:39Z", "ms": -1152284540742.342 }, "end": { "local": "1933-06-28T17:55:46+08:00", "utc": "1933-06-28T09:55:46Z", "ms": -1152194653878.0532 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-27T16:57:39+08:00", "utc": "1933-06-27T08:57:39Z", "ms": -1152284540742.342 }, "end": { "local": "1933-06-28T17:55:46+08:00", "utc": "1933-06-28T09:55:46Z", "ms": -1152194653878.0532 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-06-27", "window": { "start": { "local": "1933-06-27T11:52:36+08:00", "utc": "1933-06-27T03:52:36Z", "ms": -1152302843970.182 }, "end": { "local": "1933-06-27T12:40:36+08:00", "utc": "1933-06-27T04:40:36Z", "ms": -1152299963970.182 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-06-28", "window": { "start": { "local": "1933-06-28T11:52:48+08:00", "utc": "1933-06-28T03:52:48Z", "ms": -1152216431836.5005 }, "end": { "local": "1933-06-28T12:40:48+08:00", "utc": "1933-06-28T04:40:48Z", "ms": -1152213551836.5005 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 16:58 on Tue 27 Jun to 17:56 on Wed 28 Jun.", "fact": "1933-06-27T08:57:39Z → 1933-06-28T09:55:46Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 27th, 11:53–12:41 on the 28th.", "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 27th and 48 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 15423 s" }, { "step": "ruling", "text": "Skanda Pañcamī, Lu’an, 1933: Wednesday 28 June.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "skanda-panchami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 102", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Skanda pancami (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-06-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-28", "confidence": "determinate" } ], "quote": "In Lu’an, Skanda Pañcamī 1933 falls on Wednesday 28 June. Pañcamī runs from 16:58 on Tue 27 Jun to 17:56 on Wed 28 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vivasvat-saptami", "festival": "vivasvat-saptami", "name": "Vivasvat Saptamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-06-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19361, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-06-29T18:19:28+08:00", "utc": "1933-06-29T10:19:28Z", "ms": -1152106831637.3582 }, "end": { "local": "1933-06-30T18:03:53+08:00", "utc": "1933-06-30T10:03:53Z", "ms": -1152021366750.895 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-06-29T18:19:28+08:00", "utc": "1933-06-29T10:19:28Z", "ms": -1152106831637.3582 }, "end": { "local": "1933-06-30T18:03:53+08:00", "utc": "1933-06-30T10:03:53Z", "ms": -1152021366750.895 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-06-29", "window": { "start": { "local": "1933-06-29T11:53:00+08:00", "utc": "1933-06-29T03:53:00Z", "ms": -1152130019893.6 }, "end": { "local": "1933-06-29T12:41:00+08:00", "utc": "1933-06-29T04:41:00Z", "ms": -1152127139893.6 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-06-30", "window": { "start": { "local": "1933-06-30T11:53:12+08:00", "utc": "1933-06-30T03:53:12Z", "ms": -1152043608165.8713 }, "end": { "local": "1933-06-30T12:41:12+08:00", "utc": "1933-06-30T04:41:12Z", "ms": -1152040728165.8713 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 18:19 on Thu 29 Jun to 18:04 on Fri 30 Jun.", "fact": "1933-06-29T10:19:28Z → 1933-06-30T10:03:53Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 29th, 11:53–12:41 on the 30th.", "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 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 19361 s" }, { "step": "ruling", "text": "Vivasvat Saptamī, Lu’an, 1933: Friday 30 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": "1933-06-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-06-30", "confidence": "determinate" } ], "quote": "In Lu’an, Vivasvat Saptamī 1933 falls on Friday 30 June. Saptamī runs from 18:19 on Thu 29 Jun to 18:04 on Fri 30 Jun and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-07-04", "festival": "ekadashi", "name": "Hariśayanī Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-04", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18066, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-07-03T13:07:19+08:00", "utc": "1933-07-03T05:07:19Z", "ms": -1151779960675.7185 }, "end": { "local": "1933-07-04T10:14:10+08:00", "utc": "1933-07-04T02:14:10Z", "ms": -1151703949720.4014 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-07-03T13:07:19+08:00", "utc": "1933-07-03T05:07:19Z", "ms": -1151779960675.7185 }, "end": { "local": "1933-07-04T10:14:10+08:00", "utc": "1933-07-04T02:14:10Z", "ms": -1151703949720.4014 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-07-03", "window": { "start": { "local": "1933-07-03T05:12:38+08:00", "utc": "1933-07-02T21:12:38Z", "ms": -1151808441586.051 }, "end": { "local": "1933-07-03T05:12:38+08:00", "utc": "1933-07-02T21:12:38Z", "ms": -1151808441586.051 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-07-04", "window": { "start": { "local": "1933-07-04T05:13:04+08:00", "utc": "1933-07-03T21:13:04Z", "ms": -1151722016033.4087 }, "end": { "local": "1933-07-04T05:13:04+08:00", "utc": "1933-07-03T21:13:04Z", "ms": -1151722016033.4087 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 13:07 on Mon 3 Jul to 10:14 on Tue 4 Jul.", "fact": "1933-07-03T05:07:19Z → 1933-07-04T02:14:10Z" }, { "step": "kaala", "text": "Sunrise is at 05:13 on the 3rd and 05:13 on the 4th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 3rd and is on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 18066 s" }, { "step": "ruling", "text": "Hariśayanī Ekādaśī, Lu’an, 1933: Tuesday 4 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": "1933-07-04", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-04", "confidence": "determinate" } ], "quote": "In Lu’an, Hariśayanī Ekādaśī 1933 falls on Tuesday 4 July. Ekādaśī runs from 13:07 on Mon 3 Jul to 10:14 on Tue 4 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-07-04", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-07-05", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23742, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-07-05T06:54:29+08:00", "utc": "1933-07-04T22:54:29Z", "ms": -1151629531326.7166 }, "end": { "local": "1933-07-06T03:17:14+08:00", "utc": "1933-07-05T19:17:14Z", "ms": -1151556165845.5854 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-07-05T06:54:29+08:00", "utc": "1933-07-04T22:54:29Z", "ms": -1151629531326.7166 }, "end": { "local": "1933-07-06T03:17:14+08:00", "utc": "1933-07-05T19:17:14Z", "ms": -1151556165845.5854 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-07-04", "window": { "start": { "local": "1933-07-04T19:22:48+08:00", "utc": "1933-07-04T11:22:48Z", "ms": -1151671031671.7678 }, "end": { "local": "1933-07-04T20:41:34+08:00", "utc": "1933-07-04T12:41:34Z", "ms": -1151666306061.5935 } }, "covered_min": 0, "window_min": 79, "qualifies": false }, { "local_date": "1933-07-05", "window": { "start": { "local": "1933-07-05T19:22:43+08:00", "utc": "1933-07-05T11:22:43Z", "ms": -1151584637448.9248 }, "end": { "local": "1933-07-05T20:41:33+08:00", "utc": "1933-07-05T12:41:33Z", "ms": -1151579907429.2927 } }, "covered_min": 79, "window_min": 79, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 06:54 on Wed 5 Jul to 03:17 on Thu 6 Jul.", "fact": "1933-07-04T22:54:29Z → 1933-07-05T19:17:14Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:23–20:42 on the 4th, 19:23–20:42 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 79 minutes on the 4th and 79 of 79 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 23742 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Wednesday 5 July.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "pradosha-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "Pradosa-vrata — The sukla and krsna trayodasi tithis of each month when cover the period of 'pradosa', are observed as Pradosa-vratas." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-07-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-05", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Wednesday 5 July. Trayodaśī runs from 06:54 on Wed 5 Jul to 03:17 on Thu 6 Jul and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-07-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/vyasa-puja", "festival": "vyasa-puja", "name": "Vyāsa Pūjā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20521, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-07-06T23:32:25+08:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T19:50:29+08:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-07-06T23:32:25+08:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T19:50:29+08:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 } }, "kaala": "udaya-3", "days": [ { "local_date": "1933-07-07", "window": { "start": { "local": "1933-07-07T05:14:26+08:00", "utc": "1933-07-06T21:14:26Z", "ms": -1151462734180.402 }, "end": { "local": "1933-07-07T08:04:02+08:00", "utc": "1933-07-07T00:04:02Z", "ms": -1151452558058.3782 } }, "covered_min": 170, "window_min": 170, "qualifies": true }, { "local_date": "1933-07-08", "window": { "start": { "local": "1933-07-08T05:14:55+08:00", "utc": "1933-07-07T21:14:55Z", "ms": -1151376305258.8308 }, "end": { "local": "1933-07-08T08:04:23+08:00", "utc": "1933-07-08T00:04:23Z", "ms": -1151366136990.09 } }, "covered_min": 0, "window_min": 169, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:32 on Thu 6 Jul to 19:50 on Fri 7 Jul.", "fact": "1933-07-06T15:32:25Z → 1933-07-07T11:50:29Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:14–08:04 on the 7th, 05:15–08:04 on the 8th.", "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 170 of 170 minutes on the 7th and 0 of 169 on the 8th.", "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 20521 s" }, { "step": "ruling", "text": "Vyāsa Pūjā, Lu’an, 1933: Friday 7 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": "1933-07-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-07", "confidence": "determinate" } ], "quote": "In Lu’an, Vyāsa Pūjā 1933 falls on Friday 7 July. Pūrṇimā runs from 23:32 on Thu 6 Jul to 19:50 on Fri 7 Jul and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/guru-purnima", "festival": "guru-purnima", "name": "Guru Pūrṇimā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25682, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-07-06T23:32:25+08:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T19:50:29+08:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-07-06T23:32:25+08:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T19:50:29+08:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-07-06", "window": { "start": { "local": "1933-07-06T11:54:16+08:00", "utc": "1933-07-06T03:54:16Z", "ms": -1151525143524.9307 }, "end": { "local": "1933-07-06T12:42:16+08:00", "utc": "1933-07-06T04:42:16Z", "ms": -1151522263524.9307 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-07-07", "window": { "start": { "local": "1933-07-07T11:54:26+08:00", "utc": "1933-07-07T03:54:26Z", "ms": -1151438733875.3423 }, "end": { "local": "1933-07-07T12:42:26+08:00", "utc": "1933-07-07T04:42:26Z", "ms": -1151435853875.3423 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:32 on Thu 6 Jul to 19:50 on Fri 7 Jul.", "fact": "1933-07-06T15:32:25Z → 1933-07-07T11:50:29Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 6th, 11:54–12:42 on the 7th.", "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 6th and 48 of 48 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 25682 s" }, { "step": "ruling", "text": "Guru Pūrṇimā, Lu’an, 1933: Friday 7 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": "1933-07-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-07", "confidence": "determinate" } ], "quote": "In Lu’an, Guru Pūrṇimā 1933 falls on Friday 7 July. Pūrṇimā runs from 23:32 on Thu 6 Jul to 19:50 on Fri 7 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/kokila-vrata", "festival": "kokila-vrata", "name": "Kokilā Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1682, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-07-06T23:32:25+08:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T19:50:29+08:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-07-06T23:32:25+08:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T19:50:29+08:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 } }, "kaala": "sayahna", "days": [ { "local_date": "1933-07-06", "window": { "start": { "local": "1933-07-06T16:32:52+08:00", "utc": "1933-07-06T08:32:52Z", "ms": -1151508428258.8782 }, "end": { "local": "1933-07-06T19:22:35+08:00", "utc": "1933-07-06T11:22:35Z", "ms": -1151498244748.1765 } }, "covered_min": 0, "window_min": 170, "qualifies": false }, { "local_date": "1933-07-07", "window": { "start": { "local": "1933-07-07T16:32:50+08:00", "utc": "1933-07-07T08:32:50Z", "ms": -1151422029692.3064 }, "end": { "local": "1933-07-07T19:22:26+08:00", "utc": "1933-07-07T11:22:26Z", "ms": -1151411853570.2825 } }, "covered_min": 170, "window_min": 170, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:32 on Thu 6 Jul to 19:50 on Fri 7 Jul.", "fact": "1933-07-06T15:32:25Z → 1933-07-07T11:50:29Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:33–19:23 on the 6th, 16:33–19:22 on the 7th.", "fact": "sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during sāyāhna. It covers 0 of 170 minutes on the 6th and 170 of 170 on the 7th.", "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 1682 s" }, { "step": "ruling", "text": "Kokilā Vrata, Lu’an, 1933: Friday 7 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": "1933-07-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-07", "confidence": "determinate" } ], "quote": "In Lu’an, Kokilā Vrata 1933 falls on Friday 7 July. Pūrṇimā runs from 23:32 on Thu 6 Jul to 19:50 on Fri 7 Jul and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/shiva-shayanotsava", "festival": "shiva-shayanotsava", "name": "Śiva Śayanotsava", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1682, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-07-06T23:32:25+08:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T19:50:29+08:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 }, "month": { "amanta": 3, "purnimanta": 3, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Āṣāḍha" } }, "span": { "of": "tithi", "start": { "local": "1933-07-06T23:32:25+08:00", "utc": "1933-07-06T15:32:25Z", "ms": -1151483254981.0745 }, "end": { "local": "1933-07-07T19:50:29+08:00", "utc": "1933-07-07T11:50:29Z", "ms": -1151410171385.9382 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-07-06", "window": { "start": { "local": "1933-07-06T19:22:35+08:00", "utc": "1933-07-06T11:22:35Z", "ms": -1151498244748.1765 }, "end": { "local": "1933-07-06T20:41:30+08:00", "utc": "1933-07-06T12:41:30Z", "ms": -1151493510005.8066 } }, "covered_min": 0, "window_min": 79, "qualifies": false }, { "local_date": "1933-07-07", "window": { "start": { "local": "1933-07-07T19:22:26+08:00", "utc": "1933-07-07T11:22:26Z", "ms": -1151411853570.2825 }, "end": { "local": "1933-07-07T20:41:26+08:00", "utc": "1933-07-07T12:41:26Z", "ms": -1151407113795.4224 } }, "covered_min": 28, "window_min": 79, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 23:32 on Thu 6 Jul to 19:50 on Fri 7 Jul.", "fact": "1933-07-06T15:32:25Z → 1933-07-07T11:50:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:23–20:41 on the 6th, 19:22–20:41 on the 7th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during pradoṣa. It covers 0 of 79 minutes on the 6th and 28 of 79 on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1682 s" }, { "step": "ruling", "text": "Śiva Śayanotsava, Lu’an, 1933: Friday 7 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": "1933-07-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-07", "confidence": "determinate" } ], "quote": "In Lu’an, Śiva Śayanotsava 1933 falls on Friday 7 July. Pūrṇimā runs from 23:32 on Thu 6 Jul to 19:50 on Fri 7 Jul and covers 28 of 79 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ashunya-shayana-vrata-ashadha", "festival": "ashunya-shayana-vrata-ashadha", "name": "Aśūnya Śayana Vrata (Āṣāḍha)", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14522, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1933-07-08T16:21:54+08:00", "utc": "1933-07-08T08:21:54Z", "ms": -1151336285688.0938 }, "end": { "local": "1933-07-09T13:16:46+08:00", "utc": "1933-07-09T05:16:46Z", "ms": -1151260993814.4219 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-07-08T16:21:54+08:00", "utc": "1933-07-08T08:21:54Z", "ms": -1151336285688.0938 }, "end": { "local": "1933-07-09T13:16:46+08:00", "utc": "1933-07-09T05:16:46Z", "ms": -1151260993814.4219 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-07-08", "window": { "start": { "local": "1933-07-08T20:23:56+08:00", "utc": "1933-07-08T12:23:56Z", "ms": -1151321763558.8367 }, "end": { "local": "1933-07-08T20:23:56+08:00", "utc": "1933-07-08T12:23:56Z", "ms": -1151321763558.8367 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-07-09", "window": { "start": { "local": "1933-07-09T21:05:33+08:00", "utc": "1933-07-09T13:05:33Z", "ms": -1151232866973.202 }, "end": { "local": "1933-07-09T21:05:33+08:00", "utc": "1933-07-09T13:05:33Z", "ms": -1151232866973.202 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 16:22 on Sat 8 Jul to 13:17 on Sun 9 Jul.", "fact": "1933-07-08T08:21:54Z → 1933-07-09T05:16:46Z" }, { "step": "kaala", "text": "Moonrise is at 20:24 on the 8th and 21:06 on the 9th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā 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. 102" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 14522 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata (Āṣāḍha), Lu’an, 1933: Saturday 8 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": "1933-07-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-08", "confidence": "determinate" } ], "quote": "In Lu’an, Aśūnya Śayana Vrata (Āṣāḍha) 1933 falls on Saturday 8 July. Dvitīyā runs from 16:22 on Sat 8 Jul to 13:17 on Sun 9 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-07-10", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-10", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39378, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-07-10T10:44:12+08:00", "utc": "1933-07-10T02:44:12Z", "ms": -1151183747904.2566 }, "end": { "local": "1933-07-11T08:51:47+08:00", "utc": "1933-07-11T00:51:47Z", "ms": -1151104093031.4512 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-07-10T10:44:12+08:00", "utc": "1933-07-10T02:44:12Z", "ms": -1151183747904.2566 }, "end": { "local": "1933-07-11T08:51:47+08:00", "utc": "1933-07-11T00:51:47Z", "ms": -1151104093031.4512 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-07-10", "window": { "start": { "local": "1933-07-10T21:40:30+08:00", "utc": "1933-07-10T13:40:30Z", "ms": -1151144370108.9834 }, "end": { "local": "1933-07-10T21:40:30+08:00", "utc": "1933-07-10T13:40:30Z", "ms": -1151144370108.9834 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-07-11", "window": { "start": { "local": "1933-07-11T22:11:06+08:00", "utc": "1933-07-11T14:11:06Z", "ms": -1151056134305.083 }, "end": { "local": "1933-07-11T22:11:06+08:00", "utc": "1933-07-11T14:11:06Z", "ms": -1151056134305.083 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:44 on Mon 10 Jul to 08:52 on Tue 11 Jul.", "fact": "1933-07-10T02:44:12Z → 1933-07-11T00:51:47Z" }, { "step": "kaala", "text": "Moonrise is at 21:40 on the 10th and 22:11 on the 11th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is on the 10th and is not on the 11th.", "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 39378 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Monday 10 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": "1933-07-10", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-10", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Monday 10 July. Caturthī runs from 10:44 on Mon 10 Jul to 08:52 on Tue 11 Jul and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-07-10", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ekadashi?on=1933-07-18", "festival": "ekadashi", "name": "Kāmikā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27341, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-07-17T12:55:27+08:00", "utc": "1933-07-17T04:55:27Z", "ms": -1150571072618.0745 }, "end": { "local": "1933-07-18T15:17:11+08:00", "utc": "1933-07-18T07:17:11Z", "ms": -1150476168822.175 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-07-17T12:55:27+08:00", "utc": "1933-07-17T04:55:27Z", "ms": -1150571072618.0745 }, "end": { "local": "1933-07-18T15:17:11+08:00", "utc": "1933-07-18T07:17:11Z", "ms": -1150476168822.175 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-07-17", "window": { "start": { "local": "1933-07-17T05:19:46+08:00", "utc": "1933-07-16T21:19:46Z", "ms": -1150598413513.2043 }, "end": { "local": "1933-07-17T05:19:46+08:00", "utc": "1933-07-16T21:19:46Z", "ms": -1150598413513.2043 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-07-18", "window": { "start": { "local": "1933-07-18T05:20:22+08:00", "utc": "1933-07-17T21:20:22Z", "ms": -1150511978160.3848 }, "end": { "local": "1933-07-18T05:20:22+08:00", "utc": "1933-07-17T21:20:22Z", "ms": -1150511978160.3848 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 12:55 on Mon 17 Jul to 15:17 on Tue 18 Jul.", "fact": "1933-07-17T04:55:27Z → 1933-07-18T07:17:11Z" }, { "step": "kaala", "text": "Sunrise is at 05:20 on the 17th and 05:20 on the 18th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 17th and is on the 18th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27341 s" }, { "step": "ruling", "text": "Kāmikā Ekādaśī, Lu’an, 1933: Tuesday 18 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": "1933-07-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-18", "confidence": "determinate" } ], "quote": "In Lu’an, Kāmikā Ekādaśī 1933 falls on Tuesday 18 July. Ekādaśī runs from 12:55 on Mon 17 Jul to 15:17 on Tue 18 Jul and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-07-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-07-19", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-19", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 2176, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-07-19T17:42:22+08:00", "utc": "1933-07-19T09:42:22Z", "ms": -1150381058285.923 }, "end": { "local": "1933-07-20T20:02:29+08:00", "utc": "1933-07-20T12:02:29Z", "ms": -1150286251047.7751 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-07-19T17:42:22+08:00", "utc": "1933-07-19T09:42:22Z", "ms": -1150381058285.923 }, "end": { "local": "1933-07-20T20:02:29+08:00", "utc": "1933-07-20T12:02:29Z", "ms": -1150286251047.7751 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-07-19", "window": { "start": { "local": "1933-07-19T19:18:42+08:00", "utc": "1933-07-19T11:18:42Z", "ms": -1150375277683.5474 }, "end": { "local": "1933-07-19T20:39:05+08:00", "utc": "1933-07-19T12:39:05Z", "ms": -1150370454803.9785 } }, "covered_min": 80, "window_min": 80, "qualifies": true }, { "local_date": "1933-07-20", "window": { "start": { "local": "1933-07-20T19:18:14+08:00", "utc": "1933-07-20T11:18:14Z", "ms": -1150288906106.1204 }, "end": { "local": "1933-07-20T20:38:45+08:00", "utc": "1933-07-20T12:38:45Z", "ms": -1150284074549.7175 } }, "covered_min": 44, "window_min": 81, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 17:42 on Wed 19 Jul to 20:02 on Thu 20 Jul.", "fact": "1933-07-19T09:42:22Z → 1933-07-20T12:02:29Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:19–20:39 on the 19th, 19:18–20:39 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 80 of 80 minutes on the 19th and 44 of 81 on the 20th.", "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 2176 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Wednesday 19 July.", "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": "1933-07-19", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-19", "confidence": "boundary" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Wednesday 19 July. Trayodaśī runs from 17:42 on Wed 19 Jul to 20:02 on Thu 20 Jul and covers all of pradoṣa that evening. It also reaches the next evening for 44 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-07-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shivaratri?on=1933-07-20", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6317, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-07-20T20:02:29+08:00", "utc": "1933-07-20T12:02:29Z", "ms": -1150286251047.7751 }, "end": { "local": "1933-07-21T22:10:59+08:00", "utc": "1933-07-21T14:10:59Z", "ms": -1150192141146.339 }, "month": { "amanta": 3, "purnimanta": 4, "adhika": false, "amanta_name": "Āṣāḍha", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-07-20T20:02:29+08:00", "utc": "1933-07-20T12:02:29Z", "ms": -1150286251047.7751 }, "end": { "local": "1933-07-21T22:10:59+08:00", "utc": "1933-07-21T14:10:59Z", "ms": -1150192141146.339 } }, "kaala": "nishita", "days": [ { "local_date": "1933-07-20", "window": { "start": { "local": "1933-07-20T23:56:12+08:00", "utc": "1933-07-20T15:56:12Z", "ms": -1150272227769.6094 }, "end": { "local": "1933-07-21T00:44:12+08:00", "utc": "1933-07-20T16:44:12Z", "ms": -1150269347769.6094 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-07-21", "window": { "start": { "local": "1933-07-21T23:56:16+08:00", "utc": "1933-07-21T15:56:16Z", "ms": -1150185824206.3037 }, "end": { "local": "1933-07-22T00:44:16+08:00", "utc": "1933-07-21T16:44:16Z", "ms": -1150182944206.3037 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 20:02 on Thu 20 Jul to 22:11 on Fri 21 Jul.", "fact": "1933-07-20T12:02:29Z → 1933-07-21T14:10:59Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:56–00:44 on the 20th, 23:56–00:44 on the 21st.", "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 20th and 0 of 48 on the 21st.", "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 6317 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Thursday 20 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": "1933-07-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-20", "confidence": "determinate" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Thursday 20 July. Caturdaśī runs from 20:02 on Thu 20 Jul to 22:11 on Fri 21 Jul and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-07-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/madhusrava-tritiya", "festival": "madhusrava-tritiya", "name": "Madhusravā Tṛtīyā", "everyday": "Hariyali Teej", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30436, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-07-25T02:44:37+08:00", "utc": "1933-07-24T18:44:37Z", "ms": -1149916523396.411 }, "end": { "local": "1933-07-26T03:28:50+08:00", "utc": "1933-07-25T19:28:50Z", "ms": -1149827470089.9912 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-07-25T02:44:37+08:00", "utc": "1933-07-24T18:44:37Z", "ms": -1149916523396.411 }, "end": { "local": "1933-07-26T03:28:50+08:00", "utc": "1933-07-25T19:28:50Z", "ms": -1149827470089.9912 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-07-25", "window": { "start": { "local": "1933-07-25T11:56:05+08:00", "utc": "1933-07-25T03:56:05Z", "ms": -1149883434789.745 }, "end": { "local": "1933-07-25T12:44:05+08:00", "utc": "1933-07-25T04:44:05Z", "ms": -1149880554789.745 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-07-26", "window": { "start": { "local": "1933-07-26T11:56:06+08:00", "utc": "1933-07-26T03:56:06Z", "ms": -1149797034259.306 }, "end": { "local": "1933-07-26T12:44:06+08:00", "utc": "1933-07-26T04:44:06Z", "ms": -1149794154259.306 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 02:45 on Tue 25 Jul to 03:29 on Wed 26 Jul.", "fact": "1933-07-24T18:44:37Z → 1933-07-25T19:28:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 25th, 11:56–12:44 on the 26th.", "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 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: paraviddha → only-day · margin 30436 s" }, { "step": "ruling", "text": "Madhusravā Tṛtīyā, Lu’an, 1933: Tuesday 25 July.", "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": "1933-07-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-25", "confidence": "determinate" } ], "quote": "In Lu’an, Madhusravā Tṛtīyā (Hariyali Teej) 1933 falls on Tuesday 25 July. Tṛtīyā runs from 02:45 on Tue 25 Jul to 03:29 on Wed 26 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-07-26", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29434, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-07-26T03:28:50+08:00", "utc": "1933-07-25T19:28:50Z", "ms": -1149827470089.9912 }, "end": { "local": "1933-07-27T03:45:32+08:00", "utc": "1933-07-26T19:45:32Z", "ms": -1149740068202.8093 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-07-26T03:28:50+08:00", "utc": "1933-07-25T19:28:50Z", "ms": -1149827470089.9912 }, "end": { "local": "1933-07-27T03:45:32+08:00", "utc": "1933-07-26T19:45:32Z", "ms": -1149740068202.8093 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-07-26", "window": { "start": { "local": "1933-07-26T11:56:06+08:00", "utc": "1933-07-26T03:56:06Z", "ms": -1149797034259.306 }, "end": { "local": "1933-07-26T12:44:06+08:00", "utc": "1933-07-26T04:44:06Z", "ms": -1149794154259.306 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-07-27", "window": { "start": { "local": "1933-07-27T11:56:06+08:00", "utc": "1933-07-27T03:56:06Z", "ms": -1149710634327.4053 }, "end": { "local": "1933-07-27T12:44:06+08:00", "utc": "1933-07-27T04:44:06Z", "ms": -1149707754327.4053 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 03:29 on Wed 26 Jul to 03:46 on Thu 27 Jul.", "fact": "1933-07-25T19:28:50Z → 1933-07-26T19:45:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 26th, 11:56–12:44 on the 27th.", "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 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 29434 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Lu’an, 1933: Wednesday 26 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": "1933-07-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-26", "confidence": "determinate" } ], "quote": "In Lu’an, Vināyaka Caturthī 1933 falls on Wednesday 26 July. Caturthī runs from 03:29 on Wed 26 Jul to 03:46 on Thu 27 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-07-26", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/naga-panchami", "festival": "naga-panchami", "name": "Nāga Pañcamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-07-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29434, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-07-27T03:45:32+08:00", "utc": "1933-07-26T19:45:32Z", "ms": -1149740068202.8093 }, "end": { "local": "1933-07-28T03:32:38+08:00", "utc": "1933-07-27T19:32:38Z", "ms": -1149654442440.2314 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-07-27T03:45:32+08:00", "utc": "1933-07-26T19:45:32Z", "ms": -1149740068202.8093 }, "end": { "local": "1933-07-28T03:32:38+08:00", "utc": "1933-07-27T19:32:38Z", "ms": -1149654442440.2314 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-07-27", "window": { "start": { "local": "1933-07-27T11:56:06+08:00", "utc": "1933-07-27T03:56:06Z", "ms": -1149710634327.4053 }, "end": { "local": "1933-07-27T12:44:06+08:00", "utc": "1933-07-27T04:44:06Z", "ms": -1149707754327.4053 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-07-28", "window": { "start": { "local": "1933-07-28T11:56:05+08:00", "utc": "1933-07-28T03:56:05Z", "ms": -1149624235001.0208 }, "end": { "local": "1933-07-28T12:44:05+08:00", "utc": "1933-07-28T04:44:05Z", "ms": -1149621355001.0208 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 03:46 on Thu 27 Jul to 03:33 on Fri 28 Jul.", "fact": "1933-07-26T19:45:32Z → 1933-07-27T19:32:38Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 27th, 11:56–12:44 on the 28th.", "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 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29434 s" }, { "step": "ruling", "text": "Nāga Pañcamī, Lu’an, 1933: Thursday 27 July.", "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": "1933-07-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-07-27", "confidence": "determinate" } ], "quote": "In Lu’an, Nāga Pañcamī 1933 falls on Thursday 27 July. Pañcamī runs from 03:46 on Thu 27 Jul to 03:33 on Fri 28 Jul and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-08-02", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37571, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-08-01T18:53:18+08:00", "utc": "1933-08-01T10:53:18Z", "ms": -1149253602043.6113 }, "end": { "local": "1933-08-02T15:56:02+08:00", "utc": "1933-08-02T07:56:02Z", "ms": -1149177838333.3865 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-08-01T18:53:18+08:00", "utc": "1933-08-01T10:53:18Z", "ms": -1149253602043.6113 }, "end": { "local": "1933-08-02T15:56:02+08:00", "utc": "1933-08-02T07:56:02Z", "ms": -1149177838333.3865 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-08-01", "window": { "start": { "local": "1933-08-01T05:29:11+08:00", "utc": "1933-07-31T21:29:11Z", "ms": -1149301848872.7947 }, "end": { "local": "1933-08-01T05:29:11+08:00", "utc": "1933-07-31T21:29:11Z", "ms": -1149301848872.7947 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-08-02", "window": { "start": { "local": "1933-08-02T05:29:50+08:00", "utc": "1933-08-01T21:29:50Z", "ms": -1149215409787.549 }, "end": { "local": "1933-08-02T05:29:50+08:00", "utc": "1933-08-01T21:29:50Z", "ms": -1149215409787.549 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 18:53 on Tue 1 Aug to 15:56 on Wed 2 Aug.", "fact": "1933-08-01T10:53:18Z → 1933-08-02T07:56:02Z" }, { "step": "kaala", "text": "Sunrise is at 05:29 on the 1st and 05:30 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 37571 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Lu’an, 1933: Wednesday 2 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": "1933-08-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-02", "confidence": "determinate" } ], "quote": "In Lu’an, Putradā Ekādaśī 1933 falls on Wednesday 2 August. Ekādaśī runs from 18:53 on Tue 1 Aug to 15:56 on Wed 2 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-08-02", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/damodara-dvadashi", "festival": "damodara-dvadashi", "name": "Dāmodara Dvādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-03", "confidence": "boundary", "boundary_reasons": [ "margin" ], "boundary_margin_s": 199, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-08-02T15:56:02+08:00", "utc": "1933-08-02T07:56:02Z", "ms": -1149177838333.3865 }, "end": { "local": "1933-08-03T12:47:07+08:00", "utc": "1933-08-03T04:47:07Z", "ms": -1149102773268.5415 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-08-02T15:56:02+08:00", "utc": "1933-08-02T07:56:02Z", "ms": -1149177838333.3865 }, "end": { "local": "1933-08-03T12:47:07+08:00", "utc": "1933-08-03T04:47:07Z", "ms": -1149102773268.5415 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-02", "window": { "start": { "local": "1933-08-02T11:55:52+08:00", "utc": "1933-08-02T03:55:52Z", "ms": -1149192247590.179 }, "end": { "local": "1933-08-02T12:43:52+08:00", "utc": "1933-08-02T04:43:52Z", "ms": -1149189367590.179 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-03", "window": { "start": { "local": "1933-08-03T11:55:48+08:00", "utc": "1933-08-03T03:55:48Z", "ms": -1149105851956.2156 }, "end": { "local": "1933-08-03T12:43:48+08:00", "utc": "1933-08-03T04:43:48Z", "ms": -1149102971956.2156 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 15:56 on Wed 2 Aug to 12:47 on Thu 3 Aug.", "fact": "1933-08-02T07:56:02Z → 1933-08-03T04:47:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 2nd, 11:56–12:44 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 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 199 s < 300 s" }, { "step": "ruling", "text": "Dāmodara Dvādaśī, Lu’an, 1933: Thursday 3 August.", "fact": "confidence: boundary (margin)" } ], "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": "1933-08-03", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-03", "confidence": "determinate" } ], "quote": "In Lu’an, Dāmodara Dvādaśī 1933 falls on Thursday 3 August. Dvādaśī runs from 15:56 on Wed 2 Aug to 12:47 on Thu 3 Aug and covers all of madhyāhna that midday. It is 3 min 19 s from a threshold: treat the date as contested.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/pradosha-vrata?on=1933-08-03", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22920, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-08-03T12:47:07+08:00", "utc": "1933-08-03T04:47:07Z", "ms": -1149102773268.5415 }, "end": { "local": "1933-08-04T09:34:23+08:00", "utc": "1933-08-04T01:34:23Z", "ms": -1149027937447.7522 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-08-03T12:47:07+08:00", "utc": "1933-08-03T04:47:07Z", "ms": -1149102773268.5415 }, "end": { "local": "1933-08-04T09:34:23+08:00", "utc": "1933-08-04T01:34:23Z", "ms": -1149027937447.7522 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-08-03", "window": { "start": { "local": "1933-08-03T19:09:07+08:00", "utc": "1933-08-03T11:09:07Z", "ms": -1149079853254.774 }, "end": { "local": "1933-08-03T20:32:03+08:00", "utc": "1933-08-03T12:32:03Z", "ms": -1149074877020.5806 } }, "covered_min": 83, "window_min": 83, "qualifies": true }, { "local_date": "1933-08-04", "window": { "start": { "local": "1933-08-04T19:08:18+08:00", "utc": "1933-08-04T11:08:18Z", "ms": -1148993502364.8584 }, "end": { "local": "1933-08-04T20:31:26+08:00", "utc": "1933-08-04T12:31:26Z", "ms": -1148988514359.192 } }, "covered_min": 0, "window_min": 83, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 12:47 on Thu 3 Aug to 09:34 on Fri 4 Aug.", "fact": "1933-08-03T04:47:07Z → 1933-08-04T01:34:23Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 19:09–20:32 on the 3rd, 19:08–20:31 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 83 of 83 minutes on the 3rd and 0 of 83 on the 4th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 22920 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Thursday 3 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": "1933-08-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-03", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Thursday 3 August. Trayodaśī runs from 12:47 on Thu 3 Aug to 09:34 on Fri 4 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-08-03", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/raksha-bandhana", "festival": "raksha-bandhana", "name": "Rakṣā Bandhana", "everyday": "Rakhi", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7259, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-08-05T06:26:15+08:00", "utc": "1933-08-04T22:26:15Z", "ms": -1148952824563.142 }, "end": { "local": "1933-08-06T03:31:28+08:00", "utc": "1933-08-05T19:31:28Z", "ms": -1148876912125.888 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "second-half", "start": { "local": "1933-08-05T16:56:39+08:00", "utc": "1933-08-05T08:56:39Z", "ms": -1148915000976.8848 }, "end": { "local": "1933-08-06T03:31:28+08:00", "utc": "1933-08-05T19:31:28Z", "ms": -1148876912125.888 } }, "kaala": "day", "days": [ { "local_date": "1933-08-05", "window": { "start": { "local": "1933-08-05T05:31:48+08:00", "utc": "1933-08-04T21:31:48Z", "ms": -1148956092322.3591 }, "end": { "local": "1933-08-06T05:32:27+08:00", "utc": "1933-08-05T21:32:27Z", "ms": -1148869653140.4578 } }, "covered_min": 635, "window_min": 1441, "qualifies": true }, { "local_date": "1933-08-06", "window": { "start": { "local": "1933-08-06T05:32:27+08:00", "utc": "1933-08-05T21:32:27Z", "ms": -1148869653140.4578 }, "end": { "local": "1933-08-07T05:33:06+08:00", "utc": "1933-08-06T21:33:06Z", "ms": -1148783213961.742 } }, "covered_min": 0, "window_min": 1441, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:26 on Sat 5 Aug to 03:31 on Sun 6 Aug. Its second half begins at 16:57 on Sat 5 Aug.", "fact": "1933-08-04T22:26:15Z → 1933-08-05T19:31:28Z · second half from 1933-08-05T08:56:39Z" }, { "step": "kaala", "text": "The day runs from sunrise to the next sunrise: from 05:32 on the 5th, and from 05:32 on the 6th.", "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 635 of 1441 minutes on the 5th and 0 of 1441 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one day qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 7259 s" }, { "step": "ruling", "text": "Rakṣā Bandhana, Lu’an, 1933: Saturday 5 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "raksha-bandhana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana" } ], "kaala": "day", "priority": "unstated", "when_absent": "unstated", "half": "second" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-05", "confidence": "determinate" } ], "quote": "In Lu’an, Rakṣā Bandhana (Rakhi) 1933 falls on Saturday 5 August. The second half of Pūrṇimā runs from 16:57 on Sat 5 Aug to 03:31 on Sun 6 Aug and lies within that day, sunrise to sunrise.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/rishi-tarpana", "festival": "rishi-tarpana", "name": "Ṛṣi Tarpaṇa", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19762, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-08-05T06:26:15+08:00", "utc": "1933-08-04T22:26:15Z", "ms": -1148952824563.142 }, "end": { "local": "1933-08-06T03:31:28+08:00", "utc": "1933-08-05T19:31:28Z", "ms": -1148876912125.888 }, "month": { "amanta": 4, "purnimanta": 4, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Śrāvaṇa" } }, "span": { "of": "tithi", "start": { "local": "1933-08-05T06:26:15+08:00", "utc": "1933-08-04T22:26:15Z", "ms": -1148952824563.142 }, "end": { "local": "1933-08-06T03:31:28+08:00", "utc": "1933-08-05T19:31:28Z", "ms": -1148876912125.888 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-05", "window": { "start": { "local": "1933-08-05T11:55:37+08:00", "utc": "1933-08-05T03:55:37Z", "ms": -1148933062510.2837 }, "end": { "local": "1933-08-05T12:43:37+08:00", "utc": "1933-08-05T04:43:37Z", "ms": -1148930182510.2837 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-06", "window": { "start": { "local": "1933-08-06T11:55:31+08:00", "utc": "1933-08-06T03:55:31Z", "ms": -1148846668685.0908 }, "end": { "local": "1933-08-06T12:43:31+08:00", "utc": "1933-08-06T04:43:31Z", "ms": -1148843788685.0908 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 06:26 on Sat 5 Aug to 03:31 on Sun 6 Aug.", "fact": "1933-08-04T22:26:15Z → 1933-08-05T19:31:28Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 5th, 11:56–12:44 on the 6th.", "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 5th and 0 of 48 on the 6th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 19762 s" }, { "step": "ruling", "text": "Ṛṣi Tarpaṇa, Lu’an, 1933: Saturday 5 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": "1933-08-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-05", "confidence": "determinate" } ], "quote": "In Lu’an, Ṛṣi Tarpaṇa 1933 falls on Saturday 5 August. Pūrṇimā runs from 06:26 on Sat 5 Aug to 03:31 on Sun 6 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ashunya-shayana-vrata", "festival": "ashunya-shayana-vrata", "name": "Aśūnya Śayana Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10053, "anga": { "type": "tithi", "index": 16, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1933-08-07T00:58:36+08:00", "utc": "1933-08-06T16:58:36Z", "ms": -1148799684214.37 }, "end": { "local": "1933-08-07T22:55:42+08:00", "utc": "1933-08-07T14:55:42Z", "ms": -1148720658426.414 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-07T00:58:36+08:00", "utc": "1933-08-06T16:58:36Z", "ms": -1148799684214.37 }, "end": { "local": "1933-08-07T22:55:42+08:00", "utc": "1933-08-07T14:55:42Z", "ms": -1148720658426.414 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-08-06", "window": { "start": { "local": "1933-08-06T19:35:16+08:00", "utc": "1933-08-06T11:35:16Z", "ms": -1148819083749.4043 }, "end": { "local": "1933-08-06T19:35:16+08:00", "utc": "1933-08-06T11:35:16Z", "ms": -1148819083749.4043 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-08-07", "window": { "start": { "local": "1933-08-07T20:08:08+08:00", "utc": "1933-08-07T12:08:08Z", "ms": -1148730711683.354 }, "end": { "local": "1933-08-07T20:08:08+08:00", "utc": "1933-08-07T12:08:08Z", "ms": -1148730711683.354 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 00:59 on Mon 7 Aug to 22:56 on Mon 7 Aug.", "fact": "1933-08-06T16:58:36Z → 1933-08-07T14:55:42Z" }, { "step": "kaala", "text": "Moonrise is at 19:35 on the 6th and 20:08 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Dvitīyā must be current at moonrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 10053 s" }, { "step": "ruling", "text": "Aśūnya Śayana Vrata, Lu’an, 1933: Monday 7 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ashunya-shayana-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 2 Asunyasayana vrata (Dvitiya current at moonrise; if occurs on two successive days, it is to be observed on the second day)." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-07", "confidence": "determinate" } ], "quote": "In Lu’an, Aśūnya Śayana Vrata 1933 falls on Monday 7 August. Dvitīyā runs from 00:59 on Mon 7 Aug to 22:56 on Mon 7 Aug and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/kajjali-tritiya", "festival": "kajjali-tritiya", "name": "Kajjalī Tṛtīyā", "everyday": "Kajari Teej", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-08", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31584, "anga": { "type": "tithi", "index": 17, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-08-07T22:55:42+08:00", "utc": "1933-08-07T14:55:42Z", "ms": -1148720658426.414 }, "end": { "local": "1933-08-08T21:29:41+08:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-07T22:55:42+08:00", "utc": "1933-08-07T14:55:42Z", "ms": -1148720658426.414 }, "end": { "local": "1933-08-08T21:29:41+08:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-07", "window": { "start": { "local": "1933-08-07T11:55:25+08:00", "utc": "1933-08-07T03:55:25Z", "ms": -1148760275447.9746 }, "end": { "local": "1933-08-07T12:43:25+08:00", "utc": "1933-08-07T04:43:25Z", "ms": -1148757395447.9746 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-08", "window": { "start": { "local": "1933-08-08T11:55:17+08:00", "utc": "1933-08-08T03:55:17Z", "ms": -1148673882790.4438 }, "end": { "local": "1933-08-08T12:43:17+08:00", "utc": "1933-08-08T04:43:17Z", "ms": -1148671002790.4438 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 22:56 on Mon 7 Aug to 21:30 on Tue 8 Aug.", "fact": "1933-08-07T14:55:42Z → 1933-08-08T13:29:41Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 7th, 11:55–12:43 on the 8th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 7th and 48 of 48 on the 8th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 31584 s" }, { "step": "ruling", "text": "Kajjalī Tṛtīyā, Lu’an, 1933: Tuesday 8 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kajjali-tritiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 3 Kajjali trtiya, (paraviddha), Angaveta trtiya (Orissa)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-08", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-08", "confidence": "determinate" } ], "quote": "In Lu’an, Kajjalī Tṛtīyā (Kajari Teej) 1933 falls on Tuesday 8 August. Tṛtīyā runs from 22:56 on Mon 7 Aug to 21:30 on Tue 8 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-08-08", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-08", "confidence": "boundary", "boundary_reasons": [ "absent-unstated" ], "boundary_margin_s": 1226, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-08-08T21:29:41+08:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 }, "end": { "local": "1933-08-09T20:45:41+08:00", "utc": "1933-08-09T12:45:41Z", "ms": -1148555658950.5747 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-08T21:29:41+08:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 }, "end": { "local": "1933-08-09T20:45:41+08:00", "utc": "1933-08-09T12:45:41Z", "ms": -1148555658950.5747 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-08-08", "window": { "start": { "local": "1933-08-08T20:37:51+08:00", "utc": "1933-08-08T12:37:51Z", "ms": -1148642528854.673 }, "end": { "local": "1933-08-08T20:37:51+08:00", "utc": "1933-08-08T12:37:51Z", "ms": -1148642528854.673 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-08-09", "window": { "start": { "local": "1933-08-09T21:06:07+08:00", "utc": "1933-08-09T13:06:07Z", "ms": -1148554433286.3796 }, "end": { "local": "1933-08-09T21:06:07+08:00", "utc": "1933-08-09T13:06:07Z", "ms": -1148554433286.3796 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:30 on Tue 8 Aug to 20:46 on Wed 9 Aug.", "fact": "1933-08-08T13:29:41Z → 1933-08-09T12:45:41Z" }, { "step": "kaala", "text": "Moonrise is at 20:38 on the 8th and 21:06 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 not on the 9th.", "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 1226 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Tuesday 8 August.", "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": "1933-08-08", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-08", "confidence": "boundary" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Tuesday 8 August. Caturthī runs from 21:30 on Tue 8 Aug to 20:46 on Wed 9 Aug, and is current at moonrise on neither day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-08-08", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/bahula-chaturthi", "festival": "bahula-chaturthi", "name": "Bahulā Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6107, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-08-08T21:29:41+08:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 }, "end": { "local": "1933-08-09T20:45:41+08:00", "utc": "1933-08-09T12:45:41Z", "ms": -1148555658950.5747 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-08T21:29:41+08:00", "utc": "1933-08-08T13:29:41Z", "ms": -1148639419282.281 }, "end": { "local": "1933-08-09T20:45:41+08:00", "utc": "1933-08-09T12:45:41Z", "ms": -1148555658950.5747 } }, "kaala": "sayahna", "days": [ { "local_date": "1933-08-08", "window": { "start": { "local": "1933-08-08T16:22:36+08:00", "utc": "1933-08-08T08:22:36Z", "ms": -1148657843588.0378 }, "end": { "local": "1933-08-08T19:04:49+08:00", "utc": "1933-08-08T11:04:49Z", "ms": -1148648110786.4338 } }, "covered_min": 0, "window_min": 162, "qualifies": false }, { "local_date": "1933-08-09", "window": { "start": { "local": "1933-08-09T16:22:00+08:00", "utc": "1933-08-09T08:22:00Z", "ms": -1148571479738.2761 }, "end": { "local": "1933-08-09T19:03:54+08:00", "utc": "1933-08-09T11:03:54Z", "ms": -1148561765761.1921 } }, "covered_min": 162, "window_min": 162, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:30 on Tue 8 Aug to 20:46 on Wed 9 Aug.", "fact": "1933-08-08T13:29:41Z → 1933-08-09T12:45:41Z" }, { "step": "kaala", "text": "Sāyāhna is last 3 of 15 day muhūrtas: 16:23–19:05 on the 8th, 16:22–19:04 on the 9th.", "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 162 minutes on the 8th and 162 of 162 on the 9th.", "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 6107 s" }, { "step": "ruling", "text": "Bahulā Caturthī, Lu’an, 1933: Wednesday 9 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bahula-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day)." } ], "kaala": "sayahna", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-09", "confidence": "determinate" } ], "quote": "In Lu’an, Bahulā Caturthī 1933 falls on Wednesday 9 August. Caturthī runs from 21:30 on Tue 8 Aug to 20:46 on Wed 9 Aug and covers all of sāyāhna that late afternoon.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/hala-shashthi", "festival": "hala-shashthi", "name": "Hala Ṣaṣṭhī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 28996, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-08-10T20:46:17+08:00", "utc": "1933-08-10T12:46:17Z", "ms": -1148469222838.5842 }, "end": { "local": "1933-08-11T21:30:48+08:00", "utc": "1933-08-11T13:30:48Z", "ms": -1148380152328.6199 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-10T20:46:17+08:00", "utc": "1933-08-10T12:46:17Z", "ms": -1148469222838.5842 }, "end": { "local": "1933-08-11T21:30:48+08:00", "utc": "1933-08-11T13:30:48Z", "ms": -1148380152328.6199 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-10", "window": { "start": { "local": "1933-08-10T11:55:01+08:00", "utc": "1933-08-10T03:55:01Z", "ms": -1148501099179.8882 }, "end": { "local": "1933-08-10T12:43:01+08:00", "utc": "1933-08-10T04:43:01Z", "ms": -1148498219179.8882 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-11", "window": { "start": { "local": "1933-08-11T11:54:52+08:00", "utc": "1933-08-11T03:54:52Z", "ms": -1148414708210.188 }, "end": { "local": "1933-08-11T12:42:52+08:00", "utc": "1933-08-11T04:42:52Z", "ms": -1148411828210.188 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 20:46 on Thu 10 Aug to 21:31 on Fri 11 Aug.", "fact": "1933-08-10T12:46:17Z → 1933-08-11T13:30:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 10th, 11:55–12:43 on the 11th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ṣaṣṭhī must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 28996 s" }, { "step": "ruling", "text": "Hala Ṣaṣṭhī, Lu’an, 1933: Friday 11 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "hala-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Hala sasthi (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-11", "confidence": "determinate" } ], "quote": "In Lu’an, Hala Ṣaṣṭhī 1933 falls on Friday 11 August. Ṣaṣṭhī runs from 20:46 on Thu 10 Aug to 21:31 on Fri 11 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/shitala-saptami", "festival": "shitala-saptami", "name": "Śītalā Saptamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-12", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31676, "anga": { "type": "tithi", "index": 21, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-08-11T21:30:48+08:00", "utc": "1933-08-11T13:30:48Z", "ms": -1148380152328.6199 }, "end": { "local": "1933-08-12T22:54:49+08:00", "utc": "1933-08-12T14:54:49Z", "ms": -1148288711340.042 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-11T21:30:48+08:00", "utc": "1933-08-11T13:30:48Z", "ms": -1148380152328.6199 }, "end": { "local": "1933-08-12T22:54:49+08:00", "utc": "1933-08-12T14:54:49Z", "ms": -1148288711340.042 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-11", "window": { "start": { "local": "1933-08-11T11:54:52+08:00", "utc": "1933-08-11T03:54:52Z", "ms": -1148414708210.188 }, "end": { "local": "1933-08-11T12:42:52+08:00", "utc": "1933-08-11T04:42:52Z", "ms": -1148411828210.188 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-12", "window": { "start": { "local": "1933-08-12T11:54:42+08:00", "utc": "1933-08-12T03:54:42Z", "ms": -1148328317786.816 }, "end": { "local": "1933-08-12T12:42:42+08:00", "utc": "1933-08-12T04:42:42Z", "ms": -1148325437786.816 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 21:31 on Fri 11 Aug to 22:55 on Sat 12 Aug.", "fact": "1933-08-11T13:30:48Z → 1933-08-12T14:54:49Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 11th, 11:55–12:43 on the 12th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Saptamī must be present during madhyāhna. It covers 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 31676 s" }, { "step": "ruling", "text": "Śītalā Saptamī, Lu’an, 1933: Saturday 12 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shitala-saptami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 7 Sitala saptami (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-12", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-12", "confidence": "determinate" } ], "quote": "In Lu’an, Śītalā Saptamī 1933 falls on Saturday 12 August. Saptamī runs from 21:31 on Fri 11 Aug to 22:55 on Sat 12 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/janmashtami", "festival": "janmashtami", "name": "Janmāṣṭamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 447, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-08-12T22:54:49+08:00", "utc": "1933-08-12T14:54:49Z", "ms": -1148288711340.042 }, "end": { "local": "1933-08-14T00:50:19+08:00", "utc": "1933-08-13T16:50:19Z", "ms": -1148195381222.0803 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-12T22:54:49+08:00", "utc": "1933-08-12T14:54:49Z", "ms": -1148288711340.042 }, "end": { "local": "1933-08-14T00:50:19+08:00", "utc": "1933-08-13T16:50:19Z", "ms": -1148195381222.0803 } }, "kaala": "nishita", "days": [ { "local_date": "1933-08-12", "window": { "start": { "local": "1933-08-12T23:55:02+08:00", "utc": "1933-08-12T15:55:02Z", "ms": -1148285098294.655 }, "end": { "local": "1933-08-13T00:43:02+08:00", "utc": "1933-08-12T16:43:02Z", "ms": -1148282218294.655 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-13", "window": { "start": { "local": "1933-08-13T23:54:52+08:00", "utc": "1933-08-13T15:54:52Z", "ms": -1148198708441.4585 }, "end": { "local": "1933-08-14T00:42:52+08:00", "utc": "1933-08-13T16:42:52Z", "ms": -1148195828441.4585 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 22:55 on Sat 12 Aug to 00:50 on Mon 14 Aug.", "fact": "1933-08-12T14:54:49Z → 1933-08-13T16:50:19Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:55–00:43 on the 12th, 23:55–00:43 on the 13th.", "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 12th and 48 of 48 on the 13th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Both nights qualify. Paraviddhā: the second is taken.", "fact": "priority: paraviddha → paraviddha · margin 447 s" }, { "step": "ruling", "text": "Janmāṣṭamī, Lu’an, 1933: Sunday 13 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "janmashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Janmastami (madhyaratra-vyapini), if midnight is covered on two days, or not on any day, it is to be observed on the 2nd day; special when combined with naksatra 'Rohini' at midnight, more so when on Monday or Wednesday. If the combination occurs before midnight and 'Rohini' extends up to midnight, it is to be observed on that day. Gokulastami." } ], "not_evaluated": "The clauses on Rohiṇī nakṣatra, the Vaiṣṇava observance on the day after saptamī, and the Assam and South India reckoning in the solar month belong to other readings and are not applied.", "kaala": "nishita", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-13", "confidence": "determinate" } ], "quote": "In Lu’an, Janmāṣṭamī 1933 falls on Sunday 13 August. Aṣṭamī runs from 22:55 on Sat 12 Aug to 00:50 on Mon 14 Aug and covers all of niśītha that night. It also reaches the previous night for 48 minutes; by the rule the second night is taken.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-08-17", "festival": "ekadashi", "name": "Ajā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 487, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-08-16T05:30:51+08:00", "utc": "1933-08-15T21:30:51Z", "ms": -1148005749426.8162 }, "end": { "local": "1933-08-17T07:51:27+08:00", "utc": "1933-08-16T23:51:27Z", "ms": -1147910913264.0588 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-16T05:30:51+08:00", "utc": "1933-08-15T21:30:51Z", "ms": -1148005749426.8162 }, "end": { "local": "1933-08-17T07:51:27+08:00", "utc": "1933-08-16T23:51:27Z", "ms": -1147910913264.0588 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-08-16", "window": { "start": { "local": "1933-08-16T05:38:57+08:00", "utc": "1933-08-15T21:38:57Z", "ms": -1148005262882.231 }, "end": { "local": "1933-08-16T05:38:57+08:00", "utc": "1933-08-15T21:38:57Z", "ms": -1148005262882.231 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-08-17", "window": { "start": { "local": "1933-08-17T05:39:36+08:00", "utc": "1933-08-16T21:39:36Z", "ms": -1147918824203.6382 }, "end": { "local": "1933-08-17T05:39:36+08:00", "utc": "1933-08-16T21:39:36Z", "ms": -1147918824203.6382 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "paraviddha", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 05:31 on Wed 16 Aug to 07:51 on Thu 17 Aug.", "fact": "1933-08-15T21:30:51Z → 1933-08-16T23:51:27Z" }, { "step": "kaala", "text": "Sunrise is at 05:39 on the 16th and 05:40 on the 17th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 16th and is on the 17th.", "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 487 s" }, { "step": "ruling", "text": "Ajā Ekādaśī, Lu’an, 1933: Thursday 17 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": "1933-08-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-17", "confidence": "determinate" } ], "quote": "In Lu’an, Ajā Ekādaśī 1933 falls on Thursday 17 August. Ekādaśī runs from 05:31 on Wed 16 Aug to 07:51 on Thu 17 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-08-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-08-18", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25896, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-08-18T09:57:50+08:00", "utc": "1933-08-18T01:57:50Z", "ms": -1147816930239.3103 }, "end": { "local": "1933-08-19T11:42:12+08:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-18T09:57:50+08:00", "utc": "1933-08-18T01:57:50Z", "ms": -1147816930239.3103 }, "end": { "local": "1933-08-19T11:42:12+08:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-08-18", "window": { "start": { "local": "1933-08-18T18:54:53+08:00", "utc": "1933-08-18T10:54:53Z", "ms": -1147784706935.3335 }, "end": { "local": "1933-08-18T20:21:01+08:00", "utc": "1933-08-18T12:21:01Z", "ms": -1147779538963.3372 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "1933-08-19", "window": { "start": { "local": "1933-08-19T18:53:48+08:00", "utc": "1933-08-19T10:53:48Z", "ms": -1147698371770.3108 }, "end": { "local": "1933-08-19T20:20:10+08:00", "utc": "1933-08-19T12:20:10Z", "ms": -1147693190038.325 } }, "covered_min": 0, "window_min": 86, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 09:58 on Fri 18 Aug to 11:42 on Sat 19 Aug.", "fact": "1933-08-18T01:57:50Z → 1933-08-19T03:42:12Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:55–20:21 on the 18th, 18:54–20:20 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 86 of 86 minutes on the 18th and 0 of 86 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 25896 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Friday 18 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": "1933-08-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-18", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Friday 18 August. Trayodaśī runs from 09:58 on Fri 18 Aug to 11:42 on Sat 19 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-08-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/aghora-chaturdashi", "festival": "aghora-chaturdashi", "name": "Aghora Caturdaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21185, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-08-19T11:42:12+08:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 }, "end": { "local": "1933-08-20T12:59:38+08:00", "utc": "1933-08-20T04:59:38Z", "ms": -1147633222268.3242 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-19T11:42:12+08:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 }, "end": { "local": "1933-08-20T12:59:38+08:00", "utc": "1933-08-20T04:59:38Z", "ms": -1147633222268.3242 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-08-19", "window": { "start": { "local": "1933-08-19T18:53:48+08:00", "utc": "1933-08-19T10:53:48Z", "ms": -1147698371770.3108 }, "end": { "local": "1933-08-19T20:20:10+08:00", "utc": "1933-08-19T12:20:10Z", "ms": -1147693190038.325 } }, "covered_min": 86, "window_min": 86, "qualifies": true }, { "local_date": "1933-08-20", "window": { "start": { "local": "1933-08-20T18:52:43+08:00", "utc": "1933-08-20T10:52:43Z", "ms": -1147612037457.201 }, "end": { "local": "1933-08-20T20:19:18+08:00", "utc": "1933-08-20T12:19:18Z", "ms": -1147606841867.4495 } }, "covered_min": 0, "window_min": 87, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:42 on Sat 19 Aug to 13:00 on Sun 20 Aug.", "fact": "1933-08-19T03:42:12Z → 1933-08-20T04:59:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:54–20:20 on the 19th, 18:53–20:19 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during pradoṣa. It covers 86 of 86 minutes on the 19th and 0 of 87 on the 20th.", "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 21185 s" }, { "step": "ruling", "text": "Aghora Caturdaśī, Lu’an, 1933: Saturday 19 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "aghora-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Aghora caturdasi (pradosa vyapini)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-19", "confidence": "determinate" } ], "quote": "In Lu’an, Aghora Caturdaśī 1933 falls on Saturday 19 August. Caturdaśī runs from 11:42 on Sat 19 Aug to 13:00 on Sun 20 Aug and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/shivaratri?on=1933-08-19", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 39228, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-08-19T11:42:12+08:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 }, "end": { "local": "1933-08-20T12:59:38+08:00", "utc": "1933-08-20T04:59:38Z", "ms": -1147633222268.3242 }, "month": { "amanta": 4, "purnimanta": 5, "adhika": false, "amanta_name": "Śrāvaṇa", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-19T11:42:12+08:00", "utc": "1933-08-19T03:42:12Z", "ms": -1147724268099.9114 }, "end": { "local": "1933-08-20T12:59:38+08:00", "utc": "1933-08-20T04:59:38Z", "ms": -1147633222268.3242 } }, "kaala": "nishita", "days": [ { "local_date": "1933-08-19", "window": { "start": { "local": "1933-08-19T23:53:40+08:00", "utc": "1933-08-19T15:53:40Z", "ms": -1147680380275.3638 }, "end": { "local": "1933-08-20T00:41:40+08:00", "utc": "1933-08-19T16:41:40Z", "ms": -1147677500275.3638 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-20", "window": { "start": { "local": "1933-08-20T23:53:26+08:00", "utc": "1933-08-20T15:53:26Z", "ms": -1147593993995.6328 }, "end": { "local": "1933-08-21T00:41:26+08:00", "utc": "1933-08-20T16:41:26Z", "ms": -1147591113995.6328 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 11:42 on Sat 19 Aug to 13:00 on Sun 20 Aug.", "fact": "1933-08-19T03:42:12Z → 1933-08-20T04:59:38Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:54–00:42 on the 19th, 23:53–00:41 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 39228 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Saturday 19 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "shivaratri", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 108", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "The krsna caturdasi in each month is called 'Sivaratri'. The chief among them is that of Magha. The tithi must cover nisitha (or pradosa in some opinion)." } ], "not_evaluated": "The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.", "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-19", "confidence": "determinate" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Saturday 19 August. Caturdaśī runs from 11:42 on Sat 19 Aug to 13:00 on Sun 20 Aug and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-08-19", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/rudra-vrata", "festival": "rudra-vrata", "name": "Rudra Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4015, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-08-21T13:47:48+08:00", "utc": "1933-08-21T05:47:48Z", "ms": -1147543932269.2812 }, "end": { "local": "1933-08-22T14:06:24+08:00", "utc": "1933-08-22T06:06:24Z", "ms": -1147456415864.4207 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-21T13:47:48+08:00", "utc": "1933-08-21T05:47:48Z", "ms": -1147543932269.2812 }, "end": { "local": "1933-08-22T14:06:24+08:00", "utc": "1933-08-22T06:06:24Z", "ms": -1147456415864.4207 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-21", "window": { "start": { "local": "1933-08-21T11:52:53+08:00", "utc": "1933-08-21T03:52:53Z", "ms": -1147550827253.121 }, "end": { "local": "1933-08-21T12:40:53+08:00", "utc": "1933-08-21T04:40:53Z", "ms": -1147547947253.121 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-22", "window": { "start": { "local": "1933-08-22T11:52:38+08:00", "utc": "1933-08-22T03:52:38Z", "ms": -1147464441852.0205 }, "end": { "local": "1933-08-22T12:40:38+08:00", "utc": "1933-08-22T04:40:38Z", "ms": -1147461561852.0205 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 13:48 on Mon 21 Aug to 14:06 on Tue 22 Aug.", "fact": "1933-08-21T05:47:48Z → 1933-08-22T06:06:24Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 21st, 11:53–12:41 on the 22nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4015 s" }, { "step": "ruling", "text": "Rudra Vrata, Lu’an, 1933: Tuesday 22 August.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "rudra-vrata", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Rudra vrata (purvaviddha)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-08-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-22", "confidence": "determinate" } ], "quote": "In Lu’an, Rudra Vrata 1933 falls on Tuesday 22 August. Pratipadā runs from 13:48 on Mon 21 Aug to 14:06 on Tue 22 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/haritalika-vrata", "festival": "haritalika-vrata", "name": "Haritālikā Vrata", "everyday": "Hartalika Teej", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2400, "anga": { "type": "tithi", "index": 2, "key": "tritiya", "name": "Tṛtīyā", "start": { "local": "1933-08-23T13:56:32+08:00", "utc": "1933-08-23T05:56:32Z", "ms": -1147370607539.697 }, "end": { "local": "1933-08-24T13:20:08+08:00", "utc": "1933-08-24T05:20:08Z", "ms": -1147286392361.1294 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-23T13:56:32+08:00", "utc": "1933-08-23T05:56:32Z", "ms": -1147370607539.697 }, "end": { "local": "1933-08-24T13:20:08+08:00", "utc": "1933-08-24T05:20:08Z", "ms": -1147286392361.1294 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-23", "window": { "start": { "local": "1933-08-23T11:52:23+08:00", "utc": "1933-08-23T03:52:23Z", "ms": -1147378056906.4233 }, "end": { "local": "1933-08-23T12:40:23+08:00", "utc": "1933-08-23T04:40:23Z", "ms": -1147375176906.4233 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-24", "window": { "start": { "local": "1933-08-24T11:52:08+08:00", "utc": "1933-08-24T03:52:08Z", "ms": -1147291672406.7622 }, "end": { "local": "1933-08-24T12:40:08+08:00", "utc": "1933-08-24T04:40:08Z", "ms": -1147288792406.7622 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Tṛtīyā runs from 13:57 on Wed 23 Aug to 13:20 on Thu 24 Aug.", "fact": "1933-08-23T05:56:32Z → 1933-08-24T05:20:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 23rd, 11:52–12:40 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2400 s" }, { "step": "ruling", "text": "Haritālikā Vrata, Lu’an, 1933: Thursday 24 August.", "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": "1933-08-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-24", "confidence": "determinate" } ], "quote": "In Lu’an, Haritālikā Vrata (Hartalika Teej) 1933 falls on Thursday 24 August. Tṛtīyā runs from 13:57 on Wed 23 Aug to 13:20 on Thu 24 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ganesha-chaturthi", "festival": "ganesha-chaturthi", "name": "Gaṇeśa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1222, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-08-24T13:20:08+08:00", "utc": "1933-08-24T05:20:08Z", "ms": -1147286392361.1294 }, "end": { "local": "1933-08-25T12:19:29+08:00", "utc": "1933-08-25T04:19:29Z", "ms": -1147203630777.0862 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-24T13:20:08+08:00", "utc": "1933-08-24T05:20:08Z", "ms": -1147286392361.1294 }, "end": { "local": "1933-08-25T12:19:29+08:00", "utc": "1933-08-25T04:19:29Z", "ms": -1147203630777.0862 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-24", "window": { "start": { "local": "1933-08-24T11:52:08+08:00", "utc": "1933-08-24T03:52:08Z", "ms": -1147291672406.7622 }, "end": { "local": "1933-08-24T12:40:08+08:00", "utc": "1933-08-24T04:40:08Z", "ms": -1147288792406.7622 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-08-25", "window": { "start": { "local": "1933-08-25T11:51:52+08:00", "utc": "1933-08-25T03:51:52Z", "ms": -1147205288342.8076 }, "end": { "local": "1933-08-25T12:39:52+08:00", "utc": "1933-08-25T04:39:52Z", "ms": -1147202408342.8076 } }, "covered_min": 28, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:20 on Thu 24 Aug to 12:19 on Fri 25 Aug.", "fact": "1933-08-24T05:20:08Z → 1933-08-25T04:19:29Z" }, { "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 0 of 48 minutes on the 24th and 28 of 48 on the 25th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1222 s" }, { "step": "ruling", "text": "Gaṇeśa Caturthī, Lu’an, 1933: Friday 25 August.", "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": "1933-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-24", "confidence": "determinate" } ], "quote": "In Lu’an, Gaṇeśa Caturthī 1933 falls on Friday 25 August. Caturthī runs from 13:20 on Thu 24 Aug to 12:19 on Fri 25 Aug and covers 28 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/rishi-panchami", "festival": "rishi-panchami", "name": "Ṛṣi Pañcamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-25", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1222, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-08-25T12:19:29+08:00", "utc": "1933-08-25T04:19:29Z", "ms": -1147203630777.0862 }, "end": { "local": "1933-08-26T10:57:07+08:00", "utc": "1933-08-26T02:57:07Z", "ms": -1147122173265.3755 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-25T12:19:29+08:00", "utc": "1933-08-25T04:19:29Z", "ms": -1147203630777.0862 }, "end": { "local": "1933-08-26T10:57:07+08:00", "utc": "1933-08-26T02:57:07Z", "ms": -1147122173265.3755 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-25", "window": { "start": { "local": "1933-08-25T11:51:52+08:00", "utc": "1933-08-25T03:51:52Z", "ms": -1147205288342.8076 }, "end": { "local": "1933-08-25T12:39:52+08:00", "utc": "1933-08-25T04:39:52Z", "ms": -1147202408342.8076 } }, "covered_min": 20, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-26", "window": { "start": { "local": "1933-08-26T11:51:35+08:00", "utc": "1933-08-26T03:51:35Z", "ms": -1147118904703.5012 }, "end": { "local": "1933-08-26T12:39:35+08:00", "utc": "1933-08-26T04:39:35Z", "ms": -1147116024703.5012 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 12:19 on Fri 25 Aug to 10:57 on Sat 26 Aug.", "fact": "1933-08-25T04:19:29Z → 1933-08-26T02:57:07Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 25th, 11:52–12:40 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pañcamī must be present during madhyāhna. It covers 20 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: disputed → only-day · margin 1222 s" }, { "step": "ruling", "text": "Ṛṣi Pañcamī, Lu’an, 1933: Friday 25 August.", "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": "1933-08-25", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-25", "confidence": "boundary" } ], "quote": "In Lu’an, Ṛṣi Pañcamī 1933 falls on Friday 25 August. Pañcamī runs from 12:19 on Fri 25 Aug to 10:57 on Sat 26 Aug and covers 20 of 48 minutes of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/surya-shashthi-bhadrapada", "festival": "surya-shashthi-bhadrapada", "name": "Sūrya Ṣaṣṭhī (Bhādrapada)", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3269, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-08-26T10:57:07+08:00", "utc": "1933-08-26T02:57:07Z", "ms": -1147122173265.3755 }, "end": { "local": "1933-08-27T09:15:34+08:00", "utc": "1933-08-27T01:15:34Z", "ms": -1147041865738.427 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-26T10:57:07+08:00", "utc": "1933-08-26T02:57:07Z", "ms": -1147122173265.3755 }, "end": { "local": "1933-08-27T09:15:34+08:00", "utc": "1933-08-27T01:15:34Z", "ms": -1147041865738.427 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-26", "window": { "start": { "local": "1933-08-26T11:51:35+08:00", "utc": "1933-08-26T03:51:35Z", "ms": -1147118904703.5012 }, "end": { "local": "1933-08-26T12:39:35+08:00", "utc": "1933-08-26T04:39:35Z", "ms": -1147116024703.5012 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-27", "window": { "start": { "local": "1933-08-27T11:51:19+08:00", "utc": "1933-08-27T03:51:19Z", "ms": -1147032521476.8008 }, "end": { "local": "1933-08-27T12:39:19+08:00", "utc": "1933-08-27T04:39:19Z", "ms": -1147029641476.8008 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 10:57 on Sat 26 Aug to 09:16 on Sun 27 Aug.", "fact": "1933-08-26T02:57:07Z → 1933-08-27T01:15:34Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 26th, 11:51–12:39 on the 27th.", "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 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 3269 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī (Bhādrapada), Lu’an, 1933: Saturday 26 August.", "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": "1933-08-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-26", "confidence": "boundary" } ], "quote": "In Lu’an, Sūrya Ṣaṣṭhī (Bhādrapada) 1933 falls on Saturday 26 August. Ṣaṣṭhī runs from 10:57 on Sat 26 Aug to 09:16 on Sun 27 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/muktabharana-vrata", "festival": "muktabharana-vrata", "name": "Muktābharaṇa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9344, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-08-27T09:15:34+08:00", "utc": "1933-08-27T01:15:34Z", "ms": -1147041865738.427 }, "end": { "local": "1933-08-28T07:17:32+08:00", "utc": "1933-08-27T23:17:32Z", "ms": -1146962547734.3435 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-27T09:15:34+08:00", "utc": "1933-08-27T01:15:34Z", "ms": -1147041865738.427 }, "end": { "local": "1933-08-28T07:17:32+08:00", "utc": "1933-08-27T23:17:32Z", "ms": -1146962547734.3435 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-27", "window": { "start": { "local": "1933-08-27T11:51:19+08:00", "utc": "1933-08-27T03:51:19Z", "ms": -1147032521476.8008 }, "end": { "local": "1933-08-27T12:39:19+08:00", "utc": "1933-08-27T04:39:19Z", "ms": -1147029641476.8008 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-28", "window": { "start": { "local": "1933-08-28T11:51:01+08:00", "utc": "1933-08-28T03:51:01Z", "ms": -1146946138649.5552 }, "end": { "local": "1933-08-28T12:39:01+08:00", "utc": "1933-08-28T04:39:01Z", "ms": -1146943258649.5552 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 09:16 on Sun 27 Aug to 07:18 on Mon 28 Aug.", "fact": "1933-08-27T01:15:34Z → 1933-08-27T23:17:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 27th, 11:51–12:39 on the 28th.", "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 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 9344 s" }, { "step": "ruling", "text": "Muktābharaṇa Vrata, Lu’an, 1933: Sunday 27 August.", "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": "1933-08-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-27", "confidence": "determinate" } ], "quote": "In Lu’an, Muktābharaṇa Vrata 1933 falls on Sunday 27 August. Saptamī runs from 09:16 on Sun 27 Aug to 07:18 on Mon 28 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/radhashtami", "festival": "radhashtami", "name": "Rādhāṣṭamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16409, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-08-28T07:17:32+08:00", "utc": "1933-08-27T23:17:32Z", "ms": -1146962547734.3435 }, "end": { "local": "1933-08-29T05:05:54+08:00", "utc": "1933-08-28T21:05:54Z", "ms": -1146884045964.5273 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-28T07:17:32+08:00", "utc": "1933-08-27T23:17:32Z", "ms": -1146962547734.3435 }, "end": { "local": "1933-08-29T05:05:54+08:00", "utc": "1933-08-28T21:05:54Z", "ms": -1146884045964.5273 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-28", "window": { "start": { "local": "1933-08-28T11:51:01+08:00", "utc": "1933-08-28T03:51:01Z", "ms": -1146946138649.5552 }, "end": { "local": "1933-08-28T12:39:01+08:00", "utc": "1933-08-28T04:39:01Z", "ms": -1146943258649.5552 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-08-29", "window": { "start": { "local": "1933-08-29T11:50:44+08:00", "utc": "1933-08-29T03:50:44Z", "ms": -1146859756207.4038 }, "end": { "local": "1933-08-29T12:38:44+08:00", "utc": "1933-08-29T04:38:44Z", "ms": -1146856876207.4038 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 07:18 on Mon 28 Aug to 05:06 on Tue 29 Aug.", "fact": "1933-08-27T23:17:32Z → 1933-08-28T21:05:54Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 28th, 11:51–12:39 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. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 16409 s" }, { "step": "ruling", "text": "Rādhāṣṭamī, Lu’an, 1933: Monday 28 August.", "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": "1933-08-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-28", "confidence": "determinate" } ], "quote": "In Lu’an, Rādhāṣṭamī 1933 falls on Monday 28 August. Aṣṭamī runs from 07:18 on Mon 28 Aug to 05:06 on Tue 29 Aug and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-08-31", "festival": "ekadashi", "name": "Parivartanī Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-08-31", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19988, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-08-31T00:15:16+08:00", "utc": "1933-08-30T16:15:16Z", "ms": -1146728683703.0059 }, "end": { "local": "1933-08-31T21:44:19+08:00", "utc": "1933-08-31T13:44:19Z", "ms": -1146651340533.9685 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-31T00:15:16+08:00", "utc": "1933-08-30T16:15:16Z", "ms": -1146728683703.0059 }, "end": { "local": "1933-08-31T21:44:19+08:00", "utc": "1933-08-31T13:44:19Z", "ms": -1146651340533.9685 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-08-31", "window": { "start": { "local": "1933-08-31T05:48:24+08:00", "utc": "1933-08-30T21:48:24Z", "ms": -1146708695516.3716 }, "end": { "local": "1933-08-31T05:48:24+08:00", "utc": "1933-08-30T21:48:24Z", "ms": -1146708695516.3716 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-09-01", "window": { "start": { "local": "1933-09-01T05:49:01+08:00", "utc": "1933-08-31T21:49:01Z", "ms": -1146622258765.0107 }, "end": { "local": "1933-09-01T05:49:01+08:00", "utc": "1933-08-31T21:49:01Z", "ms": -1146622258765.0107 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 00:15 on Thu 31 Aug to 21:44 on Thu 31 Aug.", "fact": "1933-08-30T16:15:16Z → 1933-08-31T13:44:19Z" }, { "step": "kaala", "text": "Sunrise is at 05:48 on the 31st and 05:49 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 19988 s" }, { "step": "ruling", "text": "Parivartanī Ekādaśī, Lu’an, 1933: Thursday 31 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": "1933-08-31", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-08-31", "confidence": "determinate" } ], "quote": "In Lu’an, Parivartanī Ekādaśī 1933 falls on Thursday 31 August. Ekādaśī runs from 00:15 on Thu 31 Aug to 21:44 on Thu 31 Aug and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-08-31", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/vamana-jayanti", "festival": "vamana-jayanti", "name": "Vāmana Jayantī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23891, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-08-31T21:44:19+08:00", "utc": "1933-08-31T13:44:19Z", "ms": -1146651340533.9685 }, "end": { "local": "1933-09-01T19:16:00+08:00", "utc": "1933-09-01T11:16:00Z", "ms": -1146573840049.9812 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-08-31T21:44:19+08:00", "utc": "1933-08-31T13:44:19Z", "ms": -1146651340533.9685 }, "end": { "local": "1933-09-01T19:16:00+08:00", "utc": "1933-09-01T11:16:00Z", "ms": -1146573840049.9812 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-08-31", "window": { "start": { "local": "1933-08-31T11:50:08+08:00", "utc": "1933-08-31T03:50:08Z", "ms": -1146686992414.5762 }, "end": { "local": "1933-08-31T12:38:08+08:00", "utc": "1933-08-31T04:38:08Z", "ms": -1146684112414.5762 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-09-01", "window": { "start": { "local": "1933-09-01T11:49:49+08:00", "utc": "1933-09-01T03:49:49Z", "ms": -1146600611028.788 }, "end": { "local": "1933-09-01T12:37:49+08:00", "utc": "1933-09-01T04:37:49Z", "ms": -1146597731028.788 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 21:44 on Thu 31 Aug to 19:16 on Fri 1 Sep.", "fact": "1933-08-31T13:44:19Z → 1933-09-01T11:16:00Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 31st, 11:50–12:38 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 0 of 48 minutes on the 31st and 48 of 48 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23891 s" }, { "step": "ruling", "text": "Vāmana Jayantī, Lu’an, 1933: Friday 1 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": "1933-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-01", "confidence": "determinate" } ], "quote": "In Lu’an, Vāmana Jayantī 1933 falls on Friday 1 September. Dvādaśī runs from 21:44 on Thu 31 Aug to 19:16 on Fri 1 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/pradosha-vrata?on=1933-09-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2243, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-09-01T19:16:00+08:00", "utc": "1933-09-01T11:16:00Z", "ms": -1146573840049.9812 }, "end": { "local": "1933-09-02T16:55:50+08:00", "utc": "1933-09-02T08:55:50Z", "ms": -1146495850223.9268 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-09-01T19:16:00+08:00", "utc": "1933-09-01T11:16:00Z", "ms": -1146573840049.9812 }, "end": { "local": "1933-09-02T16:55:50+08:00", "utc": "1933-09-02T08:55:50Z", "ms": -1146495850223.9268 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-09-01", "window": { "start": { "local": "1933-09-01T18:38:37+08:00", "utc": "1933-09-01T10:38:37Z", "ms": -1146576083292.5652 }, "end": { "local": "1933-09-01T20:08:05+08:00", "utc": "1933-09-01T12:08:05Z", "ms": -1146570715137.534 } }, "covered_min": 52, "window_min": 89, "qualifies": true }, { "local_date": "1933-09-02", "window": { "start": { "local": "1933-09-02T18:37:22+08:00", "utc": "1933-09-02T10:37:22Z", "ms": -1146489757786.1504 }, "end": { "local": "1933-09-02T20:07:05+08:00", "utc": "1933-09-02T12:07:05Z", "ms": -1146484374827.9492 } }, "covered_min": 0, "window_min": 90, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 19:16 on Fri 1 Sep to 16:56 on Sat 2 Sep.", "fact": "1933-09-01T11:16:00Z → 1933-09-02T08:55:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:39–20:08 on the 1st, 18:37–20:07 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 52 of 89 minutes on the 1st and 0 of 90 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 2243 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Friday 1 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": "1933-09-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-01", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Friday 1 September. Trayodaśī runs from 19:16 on Fri 1 Sep to 16:56 on Sat 2 Sep and covers 52 of 89 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-09-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ananta-chaturdashi", "festival": "ananta-chaturdashi", "name": "Ananta Caturdaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-03", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23185, "anga": { "type": "tithi", "index": 13, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-09-02T16:55:50+08:00", "utc": "1933-09-02T08:55:50Z", "ms": -1146495850223.9268 }, "end": { "local": "1933-09-03T14:49:50+08:00", "utc": "1933-09-03T06:49:50Z", "ms": -1146417009982.1394 }, "month": { "amanta": 5, "purnimanta": 5, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Bhādrapada" } }, "span": { "of": "tithi", "start": { "local": "1933-09-02T16:55:50+08:00", "utc": "1933-09-02T08:55:50Z", "ms": -1146495850223.9268 }, "end": { "local": "1933-09-03T14:49:50+08:00", "utc": "1933-09-03T06:49:50Z", "ms": -1146417009982.1394 } }, "kaala": "udaya-3", "days": [ { "local_date": "1933-09-02", "window": { "start": { "local": "1933-09-02T05:49:38+08:00", "utc": "1933-09-01T21:49:38Z", "ms": -1146535822129.8313 }, "end": { "local": "1933-09-02T08:23:11+08:00", "utc": "1933-09-02T00:23:11Z", "ms": -1146526609261.0952 } }, "covered_min": 0, "window_min": 154, "qualifies": false }, { "local_date": "1933-09-03", "window": { "start": { "local": "1933-09-03T05:50:14+08:00", "utc": "1933-09-02T21:50:14Z", "ms": -1146449385599.6423 }, "end": { "local": "1933-09-03T08:23:25+08:00", "utc": "1933-09-03T00:23:25Z", "ms": -1146440195032.512 } }, "covered_min": 153, "window_min": 153, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 16:56 on Sat 2 Sep to 14:50 on Sun 3 Sep.", "fact": "1933-09-02T08:55:50Z → 1933-09-03T06:49:50Z" }, { "step": "kaala", "text": "The first three muhūrtas after sunrise is first 3 of 15 day muhūrtas: 05:50–08:23 on the 2nd, 05:50–08:23 on the 3rd.", "fact": "udaya-3: day-muhurta-1-3 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must hold through the first three muhūrtas after sunrise. It covers 0 of 154 minutes on the 2nd and 153 of 153 on the 3rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "step": "tie_break", "text": "Only one morning qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 23185 s" }, { "step": "ruling", "text": "Ananta Caturdaśī, Lu’an, 1933: Sunday 3 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": "1933-09-03", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-03", "confidence": "determinate" } ], "quote": "In Lu’an, Ananta Caturdaśī 1933 falls on Sunday 3 September. Caturdaśī runs from 16:56 on Sat 2 Sep to 14:50 on Sun 3 Sep and covers all of the first three muhūrtas after sunrise that morning.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-09-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33193, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-09-07T10:49:23+08:00", "utc": "1933-09-07T02:49:23Z", "ms": -1146085837289.9124 }, "end": { "local": "1933-09-08T11:18:58+08:00", "utc": "1933-09-08T03:18:58Z", "ms": -1145997661660.3862 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-07T10:49:23+08:00", "utc": "1933-09-07T02:49:23Z", "ms": -1146085837289.9124 }, "end": { "local": "1933-09-08T11:18:58+08:00", "utc": "1933-09-08T03:18:58Z", "ms": -1145997661660.3862 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-09-07", "window": { "start": { "local": "1933-09-07T20:02:36+08:00", "utc": "1933-09-07T12:02:36Z", "ms": -1146052644233.2878 }, "end": { "local": "1933-09-07T20:02:36+08:00", "utc": "1933-09-07T12:02:36Z", "ms": -1146052644233.2878 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-09-08", "window": { "start": { "local": "1933-09-08T20:34:08+08:00", "utc": "1933-09-08T12:34:08Z", "ms": -1145964351691.3772 }, "end": { "local": "1933-09-08T20:34:08+08:00", "utc": "1933-09-08T12:34:08Z", "ms": -1145964351691.3772 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 10:49 on Thu 7 Sep to 11:19 on Fri 8 Sep.", "fact": "1933-09-07T02:49:23Z → 1933-09-08T03:18:58Z" }, { "step": "kaala", "text": "Moonrise is at 20:03 on the 7th and 20:34 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 33193 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Thursday 7 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": "1933-09-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-07", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Thursday 7 September. Caturthī runs from 10:49 on Thu 7 Sep to 11:19 on Fri 8 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-09-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/chandra-shashthi", "festival": "chandra-shashthi", "name": "Candra Ṣaṣṭhī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-09", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27514, "anga": { "type": "tithi", "index": 20, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-09-09T12:27:15+08:00", "utc": "1933-09-09T04:27:15Z", "ms": -1145907165106.7795 }, "end": { "local": "1933-09-10T14:09:59+08:00", "utc": "1933-09-10T06:09:59Z", "ms": -1145814600643.1404 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-09T12:27:15+08:00", "utc": "1933-09-09T04:27:15Z", "ms": -1145907165106.7795 }, "end": { "local": "1933-09-10T14:09:59+08:00", "utc": "1933-09-10T06:09:59Z", "ms": -1145814600643.1404 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-09-09", "window": { "start": { "local": "1933-09-09T21:09:06+08:00", "utc": "1933-09-09T13:09:06Z", "ms": -1145875854268.6858 }, "end": { "local": "1933-09-09T21:09:06+08:00", "utc": "1933-09-09T13:09:06Z", "ms": -1145875854268.6858 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-09-10", "window": { "start": { "local": "1933-09-10T21:48:34+08:00", "utc": "1933-09-10T13:48:34Z", "ms": -1145787086331.8198 }, "end": { "local": "1933-09-10T21:48:34+08:00", "utc": "1933-09-10T13:48:34Z", "ms": -1145787086331.8198 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 12:27 on Sat 9 Sep to 14:10 on Sun 10 Sep.", "fact": "1933-09-09T04:27:15Z → 1933-09-10T06:09:59Z" }, { "step": "kaala", "text": "Moonrise is at 21:09 on the 9th and 21:49 on the 10th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Ṣaṣṭhī must be current at moonrise. It is on the 9th and is not on the 10th.", "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 27514 s" }, { "step": "ruling", "text": "Candra Ṣaṣṭhī, Lu’an, 1933: Saturday 9 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "chandra-shashthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 6 Candra sasthi (Sasthi current at moon-rise, if occurs on two successive days, it is to be observed on the first day)." } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-09-09", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-09", "confidence": "determinate" } ], "quote": "In Lu’an, Candra Ṣaṣṭhī 1933 falls on Saturday 9 September. Ṣaṣṭhī runs from 12:27 on Sat 9 Sep to 14:10 on Sun 10 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/jitashtami", "festival": "jitashtami", "name": "Jitāṣṭamī", "everyday": "Jitiya", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-11", "confidence": "boundary", "boundary_reasons": [ "tie-break-unstated" ], "boundary_margin_s": 1096, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-09-11T16:19:03+08:00", "utc": "1933-09-11T08:19:03Z", "ms": -1145720457187.641 }, "end": { "local": "1933-09-12T18:42:51+08:00", "utc": "1933-09-12T10:42:51Z", "ms": -1145625428981.9792 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-11T16:19:03+08:00", "utc": "1933-09-11T08:19:03Z", "ms": -1145720457187.641 }, "end": { "local": "1933-09-12T18:42:51+08:00", "utc": "1933-09-12T10:42:51Z", "ms": -1145625428981.9792 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-09-11", "window": { "start": { "local": "1933-09-11T18:25:54+08:00", "utc": "1933-09-11T10:25:54Z", "ms": -1145712846490.0752 }, "end": { "local": "1933-09-11T19:57:52+08:00", "utc": "1933-09-11T11:57:52Z", "ms": -1145707328208.572 } }, "covered_min": 92, "window_min": 92, "qualifies": true }, { "local_date": "1933-09-12", "window": { "start": { "local": "1933-09-12T18:24:35+08:00", "utc": "1933-09-12T10:24:35Z", "ms": -1145626524509.8984 }, "end": { "local": "1933-09-12T19:56:49+08:00", "utc": "1933-09-12T11:56:49Z", "ms": -1145620991000.0288 } }, "covered_min": 18, "window_min": 92, "qualifies": true } ], "decided_by": "greater-coverage", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 16:19 on Mon 11 Sep to 18:43 on Tue 12 Sep.", "fact": "1933-09-11T08:19:03Z → 1933-09-12T10:42:51Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:26–19:58 on the 11th, 18:25–19:57 on the 12th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during pradoṣa. It covers 92 of 92 minutes on the 11th and 18 of 92 on the 12th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103" }, { "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 1096 s" }, { "step": "ruling", "text": "Jitāṣṭamī, Lu’an, 1933: Monday 11 September.", "fact": "confidence: boundary (tie-break-unstated)" } ], "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": "1933-09-11", "confidence": "boundary" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-11", "confidence": "boundary" } ], "quote": "In Lu’an, Jitāṣṭamī (Jitiya) 1933 falls on Monday 11 September. Aṣṭamī runs from 16:19 on Mon 11 Sep to 18:43 on Tue 12 Sep and covers all of pradoṣa that evening. It also reaches the next evening for 18 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/lu-an/festivals/1933/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": "/lu-an/festivals/1933/mahalakshmi-vrata-samapana", "festival": "mahalakshmi-vrata-samapana", "name": "Mahālakṣmī Vrata Samāpana", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 16827, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-09-11T16:19:03+08:00", "utc": "1933-09-11T08:19:03Z", "ms": -1145720457187.641 }, "end": { "local": "1933-09-12T18:42:51+08:00", "utc": "1933-09-12T10:42:51Z", "ms": -1145625428981.9792 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-11T16:19:03+08:00", "utc": "1933-09-11T08:19:03Z", "ms": -1145720457187.641 }, "end": { "local": "1933-09-12T18:42:51+08:00", "utc": "1933-09-12T10:42:51Z", "ms": -1145625428981.9792 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-09-11", "window": { "start": { "local": "1933-09-11T22:33:16+08:00", "utc": "1933-09-11T14:33:16Z", "ms": -1145698003779.5105 }, "end": { "local": "1933-09-11T22:33:16+08:00", "utc": "1933-09-11T14:33:16Z", "ms": -1145698003779.5105 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-09-12", "window": { "start": { "local": "1933-09-12T23:23:18+08:00", "utc": "1933-09-12T15:23:18Z", "ms": -1145608601743.1987 }, "end": { "local": "1933-09-12T23:23:18+08:00", "utc": "1933-09-12T15:23:18Z", "ms": -1145608601743.1987 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 16:19 on Mon 11 Sep to 18:43 on Tue 12 Sep.", "fact": "1933-09-11T08:19:03Z → 1933-09-12T10:42:51Z" }, { "step": "kaala", "text": "Moonrise is at 22:33 on the 11th and 23:23 on the 12th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 11th and is not on the 12th.", "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 16827 s" }, { "step": "ruling", "text": "Mahālakṣmī Vrata Samāpana, Lu’an, 1933: Monday 11 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalakshmi-vrata-samapana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja" } ], "kaala": "moonrise", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-09-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-11", "confidence": "determinate" } ], "quote": "In Lu’an, Mahālakṣmī Vrata Samāpana 1933 falls on Monday 11 September. Aṣṭamī runs from 16:19 on Mon 11 Sep to 18:43 on Tue 12 Sep and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-09-15", "festival": "ekadashi", "name": "Indirā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 17412, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-09-14T23:20:04+08:00", "utc": "1933-09-14T15:20:04Z", "ms": -1145435995570.599 }, "end": { "local": "1933-09-16T01:07:54+08:00", "utc": "1933-09-15T17:07:54Z", "ms": -1145343126264.1943 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-14T23:20:04+08:00", "utc": "1933-09-14T15:20:04Z", "ms": -1145435995570.599 }, "end": { "local": "1933-09-16T01:07:54+08:00", "utc": "1933-09-15T17:07:54Z", "ms": -1145343126264.1943 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-09-15", "window": { "start": { "local": "1933-09-15T05:57:29+08:00", "utc": "1933-09-14T21:57:29Z", "ms": -1145412150699.401 }, "end": { "local": "1933-09-15T05:57:29+08:00", "utc": "1933-09-14T21:57:29Z", "ms": -1145412150699.401 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-09-16", "window": { "start": { "local": "1933-09-16T05:58:06+08:00", "utc": "1933-09-15T21:58:06Z", "ms": -1145325714385.376 }, "end": { "local": "1933-09-16T05:58:06+08:00", "utc": "1933-09-15T21:58:06Z", "ms": -1145325714385.376 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 23:20 on Thu 14 Sep to 01:08 on Sat 16 Sep.", "fact": "1933-09-14T15:20:04Z → 1933-09-15T17:07:54Z" }, { "step": "kaala", "text": "Sunrise is at 05:57 on the 15th and 05:58 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 17412 s" }, { "step": "ruling", "text": "Indirā Ekādaśī, Lu’an, 1933: Friday 15 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": "1933-09-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-15", "confidence": "determinate" } ], "quote": "In Lu’an, Indirā Ekādaśī 1933 falls on Friday 15 September. Ekādaśī runs from 23:20 on Thu 14 Sep to 01:08 on Sat 16 Sep and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-09-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-09-17", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 23405, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-09-17T02:22:41+08:00", "utc": "1933-09-16T18:22:41Z", "ms": -1145252238671.199 }, "end": { "local": "1933-09-18T02:59:50+08:00", "utc": "1933-09-17T18:59:50Z", "ms": -1145163610075.2278 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-17T02:22:41+08:00", "utc": "1933-09-16T18:22:41Z", "ms": -1145252238671.199 }, "end": { "local": "1933-09-18T02:59:50+08:00", "utc": "1933-09-17T18:59:50Z", "ms": -1145163610075.2278 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-09-16", "window": { "start": { "local": "1933-09-16T18:19:22+08:00", "utc": "1933-09-16T10:19:22Z", "ms": -1145281238270.2515 }, "end": { "local": "1933-09-16T19:52:36+08:00", "utc": "1933-09-16T11:52:36Z", "ms": -1145275643569.0994 } }, "covered_min": 0, "window_min": 93, "qualifies": false }, { "local_date": "1933-09-17", "window": { "start": { "local": "1933-09-17T18:18:03+08:00", "utc": "1933-09-17T10:18:03Z", "ms": -1145194916995.1978 }, "end": { "local": "1933-09-17T19:51:33+08:00", "utc": "1933-09-17T11:51:33Z", "ms": -1145189306938.3818 } }, "covered_min": 94, "window_min": 94, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 02:23 on Sun 17 Sep to 03:00 on Mon 18 Sep.", "fact": "1933-09-16T18:22:41Z → 1933-09-17T18:59:50Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:19–19:53 on the 16th, 18:18–19:52 on the 17th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 93 minutes on the 16th and 94 of 94 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 23405 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Sunday 17 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": "1933-09-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-17", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Sunday 17 September. Trayodaśī runs from 02:23 on Sun 17 Sep to 03:00 on Mon 18 Sep and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-09-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shivaratri?on=1933-09-18", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8768, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-09-18T02:59:50+08:00", "utc": "1933-09-17T18:59:50Z", "ms": -1145163610075.2278 }, "end": { "local": "1933-09-19T02:58:28+08:00", "utc": "1933-09-18T18:58:28Z", "ms": -1145077292091.0837 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-18T02:59:50+08:00", "utc": "1933-09-17T18:59:50Z", "ms": -1145163610075.2278 }, "end": { "local": "1933-09-19T02:58:28+08:00", "utc": "1933-09-18T18:58:28Z", "ms": -1145077292091.0837 } }, "kaala": "nishita", "days": [ { "local_date": "1933-09-17", "window": { "start": { "local": "1933-09-17T23:44:41+08:00", "utc": "1933-09-17T15:44:41Z", "ms": -1145175319282.1382 }, "end": { "local": "1933-09-18T00:32:41+08:00", "utc": "1933-09-17T16:32:41Z", "ms": -1145172439282.1382 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-09-18", "window": { "start": { "local": "1933-09-18T23:44:20+08:00", "utc": "1933-09-18T15:44:20Z", "ms": -1145088940415.094 }, "end": { "local": "1933-09-19T00:32:20+08:00", "utc": "1933-09-18T16:32:20Z", "ms": -1145086060415.094 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 03:00 on Mon 18 Sep to 02:58 on Tue 19 Sep.", "fact": "1933-09-17T18:59:50Z → 1933-09-18T18:58:28Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:45–00:33 on the 17th, 23:44–00:32 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 8768 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Monday 18 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": "1933-09-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-18", "confidence": "determinate" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Monday 18 September. Caturdaśī runs from 03:00 on Mon 18 Sep to 02:58 on Tue 19 Sep and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-09-18", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/mahalaya-amavasya", "festival": "mahalaya-amavasya", "name": "Mahālaya Amāvāsyā", "everyday": "Sarvapitṛ Amāvāsyā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 37365, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1933-09-19T02:58:28+08:00", "utc": "1933-09-18T18:58:28Z", "ms": -1145077292091.0837 }, "end": { "local": "1933-09-20T02:20:49+08:00", "utc": "1933-09-19T18:20:49Z", "ms": -1144993150903.6267 }, "month": { "amanta": 5, "purnimanta": 6, "adhika": false, "amanta_name": "Bhādrapada", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-19T02:58:28+08:00", "utc": "1933-09-18T18:58:28Z", "ms": -1145077292091.0837 }, "end": { "local": "1933-09-20T02:20:49+08:00", "utc": "1933-09-19T18:20:49Z", "ms": -1144993150903.6267 } }, "kaala": "aparahna", "days": [ { "local_date": "1933-09-19", "window": { "start": { "local": "1933-09-19T13:21:13+08:00", "utc": "1933-09-19T05:21:13Z", "ms": -1145039926780.8306 }, "end": { "local": "1933-09-19T15:48:19+08:00", "utc": "1933-09-19T07:48:19Z", "ms": -1145031100691.3833 } }, "covered_min": 147, "window_min": 147, "qualifies": true }, { "local_date": "1933-09-20", "window": { "start": { "local": "1933-09-20T13:20:41+08:00", "utc": "1933-09-20T05:20:41Z", "ms": -1144953559437.0232 }, "end": { "local": "1933-09-20T15:47:24+08:00", "utc": "1933-09-20T07:47:24Z", "ms": -1144944756434.8113 } }, "covered_min": 0, "window_min": 147, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 02:58 on Tue 19 Sep to 02:21 on Wed 20 Sep.", "fact": "1933-09-18T18:58:28Z → 1933-09-19T18:20:49Z" }, { "step": "kaala", "text": "Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:21–15:48 on the 19th, 13:21–15:47 on the 20th.", "fact": "aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during aparāhṇa. It covers 147 of 147 minutes on the 19th and 0 of 147 on the 20th.", "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 37365 s" }, { "step": "ruling", "text": "Mahālaya Amāvāsyā, Lu’an, 1933: Tuesday 19 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "mahalaya-amavasya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 103", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Mahalaya amavasya (aparahnavyapini)" } ], "not_evaluated": "The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.", "kaala": "aparahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-09-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-19", "confidence": "determinate" } ], "quote": "In Lu’an, Mahālaya Amāvāsyā 1933 falls on Tuesday 19 September. Amāvasyā runs from 02:58 on Tue 19 Sep to 02:21 on Wed 20 Sep and covers all of aparāhṇa that afternoon.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/navaratra-arambha", "festival": "navaratra-arambha", "name": "Navarātrārambha", "everyday": "Navratri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33750, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-09-20T02:20:49+08:00", "utc": "1933-09-19T18:20:49Z", "ms": -1144993150903.6267 }, "end": { "local": "1933-09-21T01:11:20+08:00", "utc": "1933-09-20T17:11:20Z", "ms": -1144910919873.0938 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-20T02:20:49+08:00", "utc": "1933-09-19T18:20:49Z", "ms": -1144993150903.6267 }, "end": { "local": "1933-09-21T01:11:20+08:00", "utc": "1933-09-20T17:11:20Z", "ms": -1144910919873.0938 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-09-20", "window": { "start": { "local": "1933-09-20T11:43:19+08:00", "utc": "1933-09-20T03:43:19Z", "ms": -1144959400938.1292 }, "end": { "local": "1933-09-20T12:31:19+08:00", "utc": "1933-09-20T04:31:19Z", "ms": -1144956520938.1292 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-09-21", "window": { "start": { "local": "1933-09-21T11:42:58+08:00", "utc": "1933-09-21T03:42:58Z", "ms": -1144873021996.2534 }, "end": { "local": "1933-09-21T12:30:58+08:00", "utc": "1933-09-21T04:30:58Z", "ms": -1144870141996.2534 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 02:21 on Wed 20 Sep to 01:11 on Thu 21 Sep.", "fact": "1933-09-19T18:20:49Z → 1933-09-20T17:11:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 20th, 11:43–12:31 on the 21st.", "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 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 33750 s" }, { "step": "ruling", "text": "Navarātrārambha, Lu’an, 1933: Wednesday 20 September.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "navaratra-arambha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Navaratrarambha (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-09-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-20", "confidence": "determinate" } ], "quote": "In Lu’an, Navarātrārambha (Navratri) 1933 falls on Wednesday 20 September. Pratipadā runs from 02:21 on Wed 20 Sep to 01:11 on Thu 21 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-09-23", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 25312, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-09-22T21:40:37+08:00", "utc": "1933-09-22T13:40:37Z", "ms": -1144750763135.1033 }, "end": { "local": "1933-09-23T19:32:08+08:00", "utc": "1933-09-23T11:32:08Z", "ms": -1144672071605.5232 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-22T21:40:37+08:00", "utc": "1933-09-22T13:40:37Z", "ms": -1144750763135.1033 }, "end": { "local": "1933-09-23T19:32:08+08:00", "utc": "1933-09-23T11:32:08Z", "ms": -1144672071605.5232 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-09-22", "window": { "start": { "local": "1933-09-22T11:42:37+08:00", "utc": "1933-09-22T03:42:37Z", "ms": -1144786642983.5107 }, "end": { "local": "1933-09-22T12:30:37+08:00", "utc": "1933-09-22T04:30:37Z", "ms": -1144783762983.5107 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-09-23", "window": { "start": { "local": "1933-09-23T11:42:16+08:00", "utc": "1933-09-23T03:42:16Z", "ms": -1144700263883.3535 }, "end": { "local": "1933-09-23T12:30:16+08:00", "utc": "1933-09-23T04:30:16Z", "ms": -1144697383883.3535 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:41 on Fri 22 Sep to 19:32 on Sat 23 Sep.", "fact": "1933-09-22T13:40:37Z → 1933-09-23T11:32:08Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 22nd, 11:42–12:30 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 0 of 48 minutes on the 22nd and 48 of 48 on the 23rd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 25312 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Lu’an, 1933: Saturday 23 September.", "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": "1933-09-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-23", "confidence": "determinate" } ], "quote": "In Lu’an, Vināyaka Caturthī 1933 falls on Saturday 23 September. Caturthī runs from 21:41 on Fri 22 Sep to 19:32 on Sat 23 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-09-23", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/durga-saptami", "festival": "durga-saptami", "name": "Durgā Saptamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21000, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-09-25T14:58:18+08:00", "utc": "1933-09-25T06:58:18Z", "ms": -1144515702192.5461 }, "end": { "local": "1933-09-26T12:42:22+08:00", "utc": "1933-09-26T04:42:22Z", "ms": -1144437458250.0767 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-25T14:58:18+08:00", "utc": "1933-09-25T06:58:18Z", "ms": -1144515702192.5461 }, "end": { "local": "1933-09-26T12:42:22+08:00", "utc": "1933-09-26T04:42:22Z", "ms": -1144437458250.0767 } }, "kaala": "udaya-1", "days": [ { "local_date": "1933-09-25", "window": { "start": { "local": "1933-09-25T06:03:36+08:00", "utc": "1933-09-24T22:03:36Z", "ms": -1144547783854.071 }, "end": { "local": "1933-09-25T06:51:52+08:00", "utc": "1933-09-24T22:51:52Z", "ms": -1144544888053.8608 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-09-26", "window": { "start": { "local": "1933-09-26T06:04:13+08:00", "utc": "1933-09-25T22:04:13Z", "ms": -1144461346565.182 }, "end": { "local": "1933-09-26T06:52:22+08:00", "utc": "1933-09-25T22:52:22Z", "ms": -1144458458474.614 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 14:58 on Mon 25 Sep to 12:42 on Tue 26 Sep.", "fact": "1933-09-25T06:58:18Z → 1933-09-26T04:42:22Z" }, { "step": "kaala", "text": "The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:04–06:52 on the 25th, 06:04–06:52 on the 26th.", "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 48 minutes on the 25th and 48 of 48 on the 26th.", "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 21000 s" }, { "step": "ruling", "text": "Durgā Saptamī, Lu’an, 1933: Tuesday 26 September.", "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": "1933-09-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-26", "confidence": "determinate" } ], "quote": "In Lu’an, Durgā Saptamī 1933 falls on Tuesday 26 September. Saptamī runs from 14:58 on Mon 25 Sep to 12:42 on Tue 26 Sep and covers all of the first muhūrta after sunrise that morning.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/mahashtami", "festival": "mahashtami", "name": "Mahāṣṭamī", "everyday": "Durga Ashtami", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 788, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-09-26T12:42:22+08:00", "utc": "1933-09-26T04:42:22Z", "ms": -1144437458250.0767 }, "end": { "local": "1933-09-27T10:31:51+08:00", "utc": "1933-09-27T02:31:51Z", "ms": -1144358888701.7578 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-26T12:42:22+08:00", "utc": "1933-09-26T04:42:22Z", "ms": -1144437458250.0767 }, "end": { "local": "1933-09-27T10:31:51+08:00", "utc": "1933-09-27T02:31:51Z", "ms": -1144358888701.7578 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-09-26", "window": { "start": { "local": "1933-09-26T11:41:14+08:00", "utc": "1933-09-26T03:41:14Z", "ms": -1144441125885.9224 }, "end": { "local": "1933-09-26T12:29:14+08:00", "utc": "1933-09-26T04:29:14Z", "ms": -1144438245885.9224 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-09-27", "window": { "start": { "local": "1933-09-27T11:40:54+08:00", "utc": "1933-09-27T03:40:54Z", "ms": -1144354746259.8672 }, "end": { "local": "1933-09-27T12:28:54+08:00", "utc": "1933-09-27T04:28:54Z", "ms": -1144351866259.8672 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 12:42 on Tue 26 Sep to 10:32 on Wed 27 Sep.", "fact": "1933-09-26T04:42:22Z → 1933-09-27T02:31:51Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 26th, 11:41–12:29 on the 27th.", "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 26th and 0 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: paraviddha → second-day · margin 788 s" }, { "step": "ruling", "text": "Mahāṣṭamī, Lu’an, 1933: Wednesday 27 September.", "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": "1933-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-26", "confidence": "determinate" } ], "quote": "In Lu’an, Mahāṣṭamī (Durga Ashtami) 1933 falls on Wednesday 27 September. Aṣṭamī runs from 12:42 on Tue 26 Sep to 10:32 on Wed 27 Sep, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/mahanavami", "festival": "mahanavami", "name": "Mahānavamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4142, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1933-09-27T10:31:51+08:00", "utc": "1933-09-27T02:31:51Z", "ms": -1144358888701.7578 }, "end": { "local": "1933-09-28T08:29:21+08:00", "utc": "1933-09-28T00:29:21Z", "ms": -1144279838579.5886 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-27T10:31:51+08:00", "utc": "1933-09-27T02:31:51Z", "ms": -1144358888701.7578 }, "end": { "local": "1933-09-28T08:29:21+08:00", "utc": "1933-09-28T00:29:21Z", "ms": -1144279838579.5886 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-09-27", "window": { "start": { "local": "1933-09-27T11:40:54+08:00", "utc": "1933-09-27T03:40:54Z", "ms": -1144354746259.8672 }, "end": { "local": "1933-09-27T12:28:54+08:00", "utc": "1933-09-27T04:28:54Z", "ms": -1144351866259.8672 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-09-28", "window": { "start": { "local": "1933-09-28T11:40:34+08:00", "utc": "1933-09-28T03:40:34Z", "ms": -1144268366454.0513 }, "end": { "local": "1933-09-28T12:28:34+08:00", "utc": "1933-09-28T04:28:34Z", "ms": -1144265486454.0513 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 10:32 on Wed 27 Sep to 08:29 on Thu 28 Sep.", "fact": "1933-09-27T02:31:51Z → 1933-09-28T00:29:21Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 27th, 11:41–12:29 on the 28th.", "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 27th and 0 of 48 on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 4142 s" }, { "step": "ruling", "text": "Mahānavamī, Lu’an, 1933: Wednesday 27 September.", "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": "1933-09-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-27", "confidence": "determinate" } ], "quote": "In Lu’an, Mahānavamī 1933 falls on Wednesday 27 September. Navamī runs from 10:32 on Wed 27 Sep to 08:29 on Thu 28 Sep and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vijaya-dashami", "festival": "vijaya-dashami", "name": "Vijayā Daśamī", "everyday": "Dussehra", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1852, "anga": { "type": "tithi", "index": 9, "key": "dashami", "name": "Daśamī", "start": { "local": "1933-09-28T08:29:21+08:00", "utc": "1933-09-28T00:29:21Z", "ms": -1144279838579.5886 }, "end": { "local": "1933-09-29T06:36:58+08:00", "utc": "1933-09-28T22:36:58Z", "ms": -1144200182136.3665 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "conjunction", "start": { "local": "1933-09-29T02:28:53+08:00", "utc": "1933-09-28T18:28:53Z", "ms": -1144215066967.78 }, "end": { "local": "1933-09-29T06:36:58+08:00", "utc": "1933-09-28T22:36:58Z", "ms": -1144200182136.3665 }, "nakshatra": { "type": "nakshatra", "index": 21, "key": "shravana", "name": "Śravaṇa", "start": { "local": "1933-09-29T02:28:53+08:00", "utc": "1933-09-28T18:28:53Z", "ms": -1144215066967.78 }, "end": { "local": "1933-09-30T01:29:58+08:00", "utc": "1933-09-29T17:29:58Z", "ms": -1144132201798.831 } } }, "kaala": "daytime", "days": [ { "local_date": "1933-09-28", "window": { "start": { "local": "1933-09-28T06:05:28+08:00", "utc": "1933-09-27T22:05:28Z", "ms": -1144288471536.6172 }, "end": { "local": "1933-09-28T18:03:39+08:00", "utc": "1933-09-28T10:03:39Z", "ms": -1144245381371.4856 } }, "covered_min": 0, "window_min": 718, "qualifies": false }, { "local_date": "1933-09-29", "window": { "start": { "local": "1933-09-29T06:06:06+08:00", "utc": "1933-09-28T22:06:06Z", "ms": -1144202033771.7446 }, "end": { "local": "1933-09-29T18:02:21+08:00", "utc": "1933-09-29T10:02:21Z", "ms": -1144159059122.6484 } }, "covered_min": 31, "window_min": 716, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Daśamī runs from 08:29 on Thu 28 Sep to 06:37 on Fri 29 Sep, and Śravaṇa from 02:29 on Fri 29 Sep to 01:30 on Sat 30 Sep. They are together from 02:29 on Fri 29 Sep to 06:37 on Fri 29 Sep.", "fact": "1933-09-28T18:28:53Z → 1933-09-28T22:36:58Z" }, { "step": "kaala", "text": "The day time is sunrise to sunset: 06:05–18:04 on the 28th, 06:06–18:02 on the 29th.", "fact": "daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 718 minutes on the 28th and 31 of 716 on the 29th.", "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 1852 s" }, { "step": "ruling", "text": "Vijayā Daśamī, Lu’an, 1933: Friday 29 September.", "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": "1933-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-29", "confidence": "determinate" } ], "quote": "In Lu’an, Vijayā Daśamī (Dussehra) 1933 falls on Friday 29 September. Daśamī runs from 08:29 on Thu 28 Sep to 06:37 on Fri 29 Sep and is with Śravaṇa in the day time that day, for 31 minutes.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-09-29", "festival": "ekadashi", "name": "Pāśāṅkuśā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-09-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1852, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-09-29T06:36:58+08:00", "utc": "1933-09-28T22:36:58Z", "ms": -1144200182136.3665 }, "end": { "local": "1933-09-30T04:56:38+08:00", "utc": "1933-09-29T20:56:38Z", "ms": -1144119801514.3555 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-09-29T06:36:58+08:00", "utc": "1933-09-28T22:36:58Z", "ms": -1144200182136.3665 }, "end": { "local": "1933-09-30T04:56:38+08:00", "utc": "1933-09-29T20:56:38Z", "ms": -1144119801514.3555 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-09-29", "window": { "start": { "local": "1933-09-29T06:06:06+08:00", "utc": "1933-09-28T22:06:06Z", "ms": -1144202033771.7446 }, "end": { "local": "1933-09-29T06:06:06+08:00", "utc": "1933-09-28T22:06:06Z", "ms": -1144202033771.7446 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-09-30", "window": { "start": { "local": "1933-09-30T06:06:44+08:00", "utc": "1933-09-29T22:06:44Z", "ms": -1144115595820.7537 }, "end": { "local": "1933-09-30T06:06:44+08:00", "utc": "1933-09-29T22:06:44Z", "ms": -1144115595820.7537 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "tithi-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 06:37 on Fri 29 Sep to 04:57 on Sat 30 Sep.", "fact": "1933-09-28T22:36:58Z → 1933-09-29T20:56:38Z" }, { "step": "kaala", "text": "Sunrise is at 06:06 on the 29th and 06:07 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 not on the 30th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Neither sunrise qualifies. The day the tithi falls on is taken.", "fact": "priority: paraviddha → tithi-day · margin 1852 s" }, { "step": "ruling", "text": "Pāśāṅkuśā Ekādaśī, Lu’an, 1933: Friday 29 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": "1933-09-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-09-29", "confidence": "determinate" } ], "quote": "In Lu’an, Pāśāṅkuśā Ekādaśī 1933 falls on Friday 29 September. Ekādaśī runs from 06:37 on Fri 29 Sep to 04:57 on Sat 30 Sep, and is current at sunrise on neither day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-09-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-10-01", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 24275, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-10-01T03:30:35+08:00", "utc": "1933-09-30T19:30:35Z", "ms": -1144038565429.0256 }, "end": { "local": "1933-10-02T02:21:27+08:00", "utc": "1933-10-01T18:21:27Z", "ms": -1143956313126.658 }, "month": { "amanta": 6, "purnimanta": 6, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Āśvina" } }, "span": { "of": "tithi", "start": { "local": "1933-10-01T03:30:35+08:00", "utc": "1933-09-30T19:30:35Z", "ms": -1144038565429.0256 }, "end": { "local": "1933-10-02T02:21:27+08:00", "utc": "1933-10-01T18:21:27Z", "ms": -1143956313126.658 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-09-30", "window": { "start": { "local": "1933-09-30T18:01:03+08:00", "utc": "1933-09-30T10:01:03Z", "ms": -1144072736613.435 }, "end": { "local": "1933-09-30T19:37:54+08:00", "utc": "1933-09-30T11:37:54Z", "ms": -1144066926087.3557 } }, "covered_min": 0, "window_min": 97, "qualifies": false }, { "local_date": "1933-10-01", "window": { "start": { "local": "1933-10-01T17:59:46+08:00", "utc": "1933-10-01T09:59:46Z", "ms": -1143986413813.658 }, "end": { "local": "1933-10-01T19:36:52+08:00", "utc": "1933-10-01T11:36:52Z", "ms": -1143980587878.014 } }, "covered_min": 97, "window_min": 97, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 03:31 on Sun 1 Oct to 02:21 on Mon 2 Oct.", "fact": "1933-09-30T19:30:35Z → 1933-10-01T18:21:27Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 18:01–19:38 on the 30th, 18:00–19:37 on the 1st.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 97 minutes on the 30th and 97 of 97 on the 1st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 24275 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Sunday 1 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": "1933-10-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-01", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Sunday 1 October. Trayodaśī runs from 03:31 on Sun 1 Oct to 02:21 on Mon 2 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-10-01", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/karaka-chaturthi", "festival": "karaka-chaturthi", "name": "Karaka Caturthī", "everyday": "Karwa Chauth", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27857, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-10-07T02:50:27+08:00", "utc": "1933-10-06T18:50:27Z", "ms": -1143522573027.6892 }, "end": { "local": "1933-10-08T04:28:42+08:00", "utc": "1933-10-07T20:28:42Z", "ms": -1143430278338.731 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-07T02:50:27+08:00", "utc": "1933-10-06T18:50:27Z", "ms": -1143522573027.6892 }, "end": { "local": "1933-10-08T04:28:42+08:00", "utc": "1933-10-07T20:28:42Z", "ms": -1143430278338.731 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-10-06", "window": { "start": { "local": "1933-10-06T19:06:10+08:00", "utc": "1933-10-06T11:06:10Z", "ms": -1143550430386.6458 }, "end": { "local": "1933-10-06T19:06:10+08:00", "utc": "1933-10-06T11:06:10Z", "ms": -1143550430386.6458 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-10-07", "window": { "start": { "local": "1933-10-07T19:44:01+08:00", "utc": "1933-10-07T11:44:01Z", "ms": -1143461758599.686 }, "end": { "local": "1933-10-07T19:44:01+08:00", "utc": "1933-10-07T11:44:01Z", "ms": -1143461758599.686 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:50 on Sat 7 Oct to 04:29 on Sun 8 Oct.", "fact": "1933-10-06T18:50:27Z → 1933-10-07T20:28:42Z" }, { "step": "kaala", "text": "Moonrise is at 19:06 on the 6th and 19:44 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 27857 s" }, { "step": "ruling", "text": "Karaka Caturthī, Lu’an, 1933: Saturday 7 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "karaka-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 4 Karaka caturthi (current at moon-rise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "moonrise", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-07", "confidence": "determinate" } ], "quote": "In Lu’an, Karaka Caturthī (Karwa Chauth) 1933 falls on Saturday 7 October. Caturthī runs from 02:50 on Sat 7 Oct to 04:29 on Sun 8 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-10-07", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-07", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27857, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-10-07T02:50:27+08:00", "utc": "1933-10-06T18:50:27Z", "ms": -1143522573027.6892 }, "end": { "local": "1933-10-08T04:28:42+08:00", "utc": "1933-10-07T20:28:42Z", "ms": -1143430278338.731 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-07T02:50:27+08:00", "utc": "1933-10-06T18:50:27Z", "ms": -1143522573027.6892 }, "end": { "local": "1933-10-08T04:28:42+08:00", "utc": "1933-10-07T20:28:42Z", "ms": -1143430278338.731 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-10-06", "window": { "start": { "local": "1933-10-06T19:06:10+08:00", "utc": "1933-10-06T11:06:10Z", "ms": -1143550430386.6458 }, "end": { "local": "1933-10-06T19:06:10+08:00", "utc": "1933-10-06T11:06:10Z", "ms": -1143550430386.6458 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-10-07", "window": { "start": { "local": "1933-10-07T19:44:01+08:00", "utc": "1933-10-07T11:44:01Z", "ms": -1143461758599.686 }, "end": { "local": "1933-10-07T19:44:01+08:00", "utc": "1933-10-07T11:44:01Z", "ms": -1143461758599.686 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 02:50 on Sat 7 Oct to 04:29 on Sun 8 Oct.", "fact": "1933-10-06T18:50:27Z → 1933-10-07T20:28:42Z" }, { "step": "kaala", "text": "Moonrise is at 19:06 on the 6th and 19:44 on the 7th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Caturthī must be current at moonrise. It is not on the 6th and is on the 7th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one moonrise qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27857 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Saturday 7 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": "1933-10-07", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-07", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Saturday 7 October. Caturthī runs from 02:50 on Sat 7 Oct to 04:29 on Sun 8 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-10-07", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ahoyi-ashtami", "festival": "ahoyi-ashtami", "name": "Ahoyī Aṣṭamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-11", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 36370, "anga": { "type": "tithi", "index": 22, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-10-11T11:31:18+08:00", "utc": "1933-10-11T03:31:18Z", "ms": -1143145722380.4578 }, "end": { "local": "1933-10-12T13:55:53+08:00", "utc": "1933-10-12T05:55:53Z", "ms": -1143050647042.5093 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-11T11:31:18+08:00", "utc": "1933-10-11T03:31:18Z", "ms": -1143145722380.4578 }, "end": { "local": "1933-10-12T13:55:53+08:00", "utc": "1933-10-12T05:55:53Z", "ms": -1143050647042.5093 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-10-11", "window": { "start": { "local": "1933-10-11T23:03:51+08:00", "utc": "1933-10-11T15:03:51Z", "ms": -1143104169143.3892 }, "end": { "local": "1933-10-11T23:03:51+08:00", "utc": "1933-10-11T15:03:51Z", "ms": -1143104169143.3892 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-10-12", "window": { "start": { "local": "1933-10-13T00:02:02+08:00", "utc": "1933-10-12T16:02:02Z", "ms": -1143014277531.892 }, "end": { "local": "1933-10-13T00:02:02+08:00", "utc": "1933-10-12T16:02:02Z", "ms": -1143014277531.892 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 11:31 on Wed 11 Oct to 13:56 on Thu 12 Oct.", "fact": "1933-10-11T03:31:18Z → 1933-10-12T05:55:53Z" }, { "step": "kaala", "text": "Moonrise is at 23:04 on the 11th and 00:02 on the 12th.", "fact": "moonrise: disc centre, 31′" }, { "step": "rule", "text": "Aṣṭamī must be current at moonrise. It is on the 11th and is not on the 12th.", "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 36370 s" }, { "step": "ruling", "text": "Ahoyī Aṣṭamī, Lu’an, 1933: Wednesday 11 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "ahoyi-ashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 8 Ahoyi astami (Gujerat) (current at moonrise), Karastami (Maharashtra). If occurs on two successive days, it is to be observed on the second day." } ], "kaala": "moonrise", "priority": "paraviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-11", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-11", "confidence": "determinate" } ], "quote": "In Lu’an, Ahoyī Aṣṭamī 1933 falls on Wednesday 11 October. Aṣṭamī runs from 11:31 on Wed 11 Oct to 13:56 on Thu 12 Oct and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-10-15", "festival": "ekadashi", "name": "Ramā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 40220, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-10-14T17:26:24+08:00", "utc": "1933-10-14T09:26:24Z", "ms": -1142865215834.5786 }, "end": { "local": "1933-10-15T18:11:12+08:00", "utc": "1933-10-15T10:11:12Z", "ms": -1142776128485.4255 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-14T17:26:24+08:00", "utc": "1933-10-14T09:26:24Z", "ms": -1142865215834.5786 }, "end": { "local": "1933-10-15T18:11:12+08:00", "utc": "1933-10-15T10:11:12Z", "ms": -1142776128485.4255 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-10-14", "window": { "start": { "local": "1933-10-14T06:16:04+08:00", "utc": "1933-10-13T22:16:04Z", "ms": -1142905436108.5466 }, "end": { "local": "1933-10-14T06:16:04+08:00", "utc": "1933-10-13T22:16:04Z", "ms": -1142905436108.5466 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-10-15", "window": { "start": { "local": "1933-10-15T06:16:46+08:00", "utc": "1933-10-14T22:16:46Z", "ms": -1142818993578.6357 }, "end": { "local": "1933-10-15T06:16:46+08:00", "utc": "1933-10-14T22:16:46Z", "ms": -1142818993578.6357 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:26 on Sat 14 Oct to 18:11 on Sun 15 Oct.", "fact": "1933-10-14T09:26:24Z → 1933-10-15T10:11:12Z" }, { "step": "kaala", "text": "Sunrise is at 06:16 on the 14th and 06:17 on the 15th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 14th and is on the 15th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 40220 s" }, { "step": "ruling", "text": "Ramā Ekādaśī, Lu’an, 1933: Sunday 15 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": "1933-10-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-15", "confidence": "determinate" } ], "quote": "In Lu’an, Ramā Ekādaśī 1933 falls on Sunday 15 October. Ekādaśī runs from 17:26 on Sat 14 Oct to 18:11 on Sun 15 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-10-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/govatsa-dvadashi", "festival": "govatsa-dvadashi", "name": "Govatsa Dvādaśī", "everyday": "Vasu Baras", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1652, "anga": { "type": "tithi", "index": 26, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-10-15T18:11:12+08:00", "utc": "1933-10-15T10:11:12Z", "ms": -1142776128485.4255 }, "end": { "local": "1933-10-16T18:08:56+08:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-15T18:11:12+08:00", "utc": "1933-10-15T10:11:12Z", "ms": -1142776128485.4255 }, "end": { "local": "1933-10-16T18:08:56+08:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-15", "window": { "start": { "local": "1933-10-15T17:42:33+08:00", "utc": "1933-10-15T09:42:33Z", "ms": -1142777846882.363 }, "end": { "local": "1933-10-15T19:23:13+08:00", "utc": "1933-10-15T11:23:13Z", "ms": -1142771807386.3787 } }, "covered_min": 72, "window_min": 101, "qualifies": true }, { "local_date": "1933-10-16", "window": { "start": { "local": "1933-10-16T17:41:24+08:00", "utc": "1933-10-16T09:41:24Z", "ms": -1142691516040.5176 }, "end": { "local": "1933-10-16T19:22:18+08:00", "utc": "1933-10-16T11:22:18Z", "ms": -1142685461549.3298 } }, "covered_min": 28, "window_min": 101, "qualifies": true } ], "decided_by": "purvaviddha", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 18:11 on Sun 15 Oct to 18:09 on Mon 16 Oct.", "fact": "1933-10-15T10:11:12Z → 1933-10-16T10:08:56Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:43–19:23 on the 15th, 17:41–19:22 on the 16th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvādaśī must be present during pradoṣa. It covers 72 of 101 minutes on the 15th and 28 of 101 on the 16th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Both evenings qualify. Pūrvaviddhā: the first is taken.", "fact": "priority: purvaviddha → purvaviddha · margin 1652 s" }, { "step": "ruling", "text": "Govatsa Dvādaśī, Lu’an, 1933: Sunday 15 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govatsa-dvadashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day." } ], "kaala": "pradosha", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-15", "confidence": "determinate" } ], "quote": "In Lu’an, Govatsa Dvādaśī (Vasu Baras) 1933 falls on Sunday 15 October. Dvādaśī runs from 18:11 on Sun 15 Oct to 18:09 on Mon 16 Oct and covers 72 of 101 minutes of pradoṣa that evening. It also reaches the next evening for 28 minutes; by the rule the first evening is taken.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/yama-dipadana", "festival": "yama-dipadana", "name": "Yama Dīpadāna", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1195, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-10-16T18:08:56+08:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 }, "end": { "local": "1933-10-17T17:20:21+08:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-16T18:08:56+08:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 }, "end": { "local": "1933-10-17T17:20:21+08:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-16", "window": { "start": { "local": "1933-10-16T17:41:24+08:00", "utc": "1933-10-16T09:41:24Z", "ms": -1142691516040.5176 }, "end": { "local": "1933-10-16T19:22:18+08:00", "utc": "1933-10-16T11:22:18Z", "ms": -1142685461549.3298 } }, "covered_min": 73, "window_min": 101, "qualifies": true }, { "local_date": "1933-10-17", "window": { "start": { "local": "1933-10-17T17:40:16+08:00", "utc": "1933-10-17T09:40:16Z", "ms": -1142605184422.5818 }, "end": { "local": "1933-10-17T19:21:25+08:00", "utc": "1933-10-17T11:21:25Z", "ms": -1142599114987.443 } }, "covered_min": 0, "window_min": 101, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:09 on Mon 16 Oct to 17:20 on Tue 17 Oct.", "fact": "1933-10-16T10:08:56Z → 1933-10-17T09:20:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:41–19:22 on the 16th, 17:40–19:21 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 73 of 101 minutes on the 16th and 0 of 101 on the 17th.", "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 1195 s" }, { "step": "ruling", "text": "Yama Dīpadāna, Lu’an, 1933: Monday 16 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dipadana", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 13 Yama dipadana (pradosa)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-16", "confidence": "determinate" } ], "quote": "In Lu’an, Yama Dīpadāna 1933 falls on Monday 16 October. Trayodaśī runs from 18:09 on Mon 16 Oct to 17:20 on Tue 17 Oct and covers 73 of 101 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/pradosha-vrata?on=1933-10-16", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1195, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-10-16T18:08:56+08:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 }, "end": { "local": "1933-10-17T17:20:21+08:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-16T18:08:56+08:00", "utc": "1933-10-16T10:08:56Z", "ms": -1142689863758.1064 }, "end": { "local": "1933-10-17T17:20:21+08:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-16", "window": { "start": { "local": "1933-10-16T17:41:24+08:00", "utc": "1933-10-16T09:41:24Z", "ms": -1142691516040.5176 }, "end": { "local": "1933-10-16T19:22:18+08:00", "utc": "1933-10-16T11:22:18Z", "ms": -1142685461549.3298 } }, "covered_min": 73, "window_min": 101, "qualifies": true }, { "local_date": "1933-10-17", "window": { "start": { "local": "1933-10-17T17:40:16+08:00", "utc": "1933-10-17T09:40:16Z", "ms": -1142605184422.5818 }, "end": { "local": "1933-10-17T19:21:25+08:00", "utc": "1933-10-17T11:21:25Z", "ms": -1142599114987.443 } }, "covered_min": 0, "window_min": 101, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 18:09 on Mon 16 Oct to 17:20 on Tue 17 Oct.", "fact": "1933-10-16T10:08:56Z → 1933-10-17T09:20:21Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:41–19:22 on the 16th, 17:40–19:21 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 73 of 101 minutes on the 16th and 0 of 101 on the 17th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 1195 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Monday 16 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": "1933-10-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-16", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Monday 16 October. Trayodaśī runs from 18:09 on Mon 16 Oct to 17:20 on Tue 17 Oct and covers 73 of 101 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-10-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shivaratri?on=1933-10-17", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-17", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 22515, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-10-17T17:20:21+08:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 }, "end": { "local": "1933-10-18T15:49:52+08:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-17T17:20:21+08:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 }, "end": { "local": "1933-10-18T15:49:52+08:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 } }, "kaala": "nishita", "days": [ { "local_date": "1933-10-17", "window": { "start": { "local": "1933-10-17T23:35:36+08:00", "utc": "1933-10-17T15:35:36Z", "ms": -1142583864040.812 }, "end": { "local": "1933-10-18T00:23:36+08:00", "utc": "1933-10-17T16:23:36Z", "ms": -1142580984040.812 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-10-18", "window": { "start": { "local": "1933-10-18T23:35:24+08:00", "utc": "1933-10-18T15:35:24Z", "ms": -1142497475785.099 }, "end": { "local": "1933-10-19T00:23:24+08:00", "utc": "1933-10-18T16:23:24Z", "ms": -1142494595785.099 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:20 on Tue 17 Oct to 15:50 on Wed 18 Oct.", "fact": "1933-10-17T09:20:21Z → 1933-10-18T07:49:52Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:36–00:24 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 22515 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Tuesday 17 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": "1933-10-17", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-17", "confidence": "determinate" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Tuesday 17 October. Caturdaśī runs from 17:20 on Tue 17 Oct to 15:50 on Wed 18 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-10-17", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/naraka-chaturdashi", "festival": "naraka-chaturdashi", "name": "Naraka Caturdaśī", "everyday": "Choti Diwali", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 34256, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-10-17T17:20:21+08:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 }, "end": { "local": "1933-10-18T15:49:52+08:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-17T17:20:21+08:00", "utc": "1933-10-17T09:20:21Z", "ms": -1142606379229.1843 }, "end": { "local": "1933-10-18T15:49:52+08:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 } }, "kaala": "arunodaya", "days": [ { "local_date": "1933-10-17", "window": { "start": { "local": "1933-10-17T04:37:18+08:00", "utc": "1933-10-16T20:37:18Z", "ms": -1142652161847.7964 }, "end": { "local": "1933-10-17T06:18:13+08:00", "utc": "1933-10-16T22:18:13Z", "ms": -1142646107356.6086 } }, "covered_min": 0, "window_min": 101, "qualifies": false }, { "local_date": "1933-10-18", "window": { "start": { "local": "1933-10-18T04:37:47+08:00", "utc": "1933-10-17T20:37:47Z", "ms": -1142565733094.1807 }, "end": { "local": "1933-10-18T06:18:56+08:00", "utc": "1933-10-17T22:18:56Z", "ms": -1142559663659.042 } }, "covered_min": 101, "window_min": 101, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 17:20 on Tue 17 Oct to 15:50 on Wed 18 Oct.", "fact": "1933-10-17T09:20:21Z → 1933-10-18T07:49:52Z" }, { "step": "kaala", "text": "Aruṇodaya is 2 muhūrtas before sunrise: 04:37–06:18 on the 17th, 04:38–06:19 on the 18th.", "fact": "arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during aruṇodaya. It covers 0 of 101 minutes on the 17th and 101 of 101 on the 18th.", "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 34256 s" }, { "step": "ruling", "text": "Naraka Caturdaśī, Lu’an, 1933: Wednesday 18 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naraka-chaturdashi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 14 Naraka caturdasi (covering a period of 4 ghatikas before sunrise, if occurs on two successive days, it is to be observed on the first day)" } ], "kaala": "arunodaya", "priority": "purvaviddha", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-18", "confidence": "determinate" } ], "quote": "In Lu’an, Naraka Caturdaśī (Choti Diwali) 1933 falls on Wednesday 18 October. Caturdaśī runs from 17:20 on Tue 17 Oct to 15:50 on Wed 18 Oct and covers all of aruṇodaya that dawn.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/diwali-lakshmi-puja", "festival": "diwali-lakshmi-puja", "name": "Lakṣmī Pūjā", "everyday": "Diwali", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 6556, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1933-10-18T15:49:52+08:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 }, "end": { "local": "1933-10-19T13:44:37+08:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-18T15:49:52+08:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 }, "end": { "local": "1933-10-19T13:44:37+08:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-18", "window": { "start": { "local": "1933-10-18T17:39:08+08:00", "utc": "1933-10-18T09:39:08Z", "ms": -1142518852000.8586 }, "end": { "local": "1933-10-18T19:20:32+08:00", "utc": "1933-10-18T11:20:32Z", "ms": -1142512767676.656 } }, "covered_min": 101, "window_min": 101, "qualifies": true }, { "local_date": "1933-10-19", "window": { "start": { "local": "1933-10-19T17:38:01+08:00", "utc": "1933-10-19T09:38:01Z", "ms": -1142432518748.4438 }, "end": { "local": "1933-10-19T19:19:40+08:00", "utc": "1933-10-19T11:19:40Z", "ms": -1142426419593.794 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 15:50 on Wed 18 Oct to 13:45 on Thu 19 Oct.", "fact": "1933-10-18T07:49:52Z → 1933-10-19T05:44:37Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:39–19:21 on the 18th, 17:38–19:20 on the 19th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during pradoṣa. It covers 101 of 101 minutes on the 18th and 0 of 102 on the 19th.", "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 6556 s" }, { "step": "ruling", "text": "Lakṣmī Pūjā, Lu’an, 1933: Wednesday 18 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "diwali-lakshmi-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-18", "confidence": "determinate" } ], "quote": "In Lu’an, Lakṣmī Pūjā (Diwali) 1933 falls on Wednesday 18 October. Amāvasyā runs from 15:50 on Wed 18 Oct to 13:45 on Thu 19 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/kali-puja", "festival": "kali-puja", "name": "Kālī Pūjā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-18", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27932, "anga": { "type": "tithi", "index": 29, "key": "amavasya", "name": "Amāvasyā", "start": { "local": "1933-10-18T15:49:52+08:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 }, "end": { "local": "1933-10-19T13:44:37+08:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "month": { "amanta": 6, "purnimanta": 7, "adhika": false, "amanta_name": "Āśvina", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-18T15:49:52+08:00", "utc": "1933-10-18T07:49:52Z", "ms": -1142525407817.6567 }, "end": { "local": "1933-10-19T13:44:37+08:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 } }, "kaala": "nishita", "days": [ { "local_date": "1933-10-18", "window": { "start": { "local": "1933-10-18T23:35:24+08:00", "utc": "1933-10-18T15:35:24Z", "ms": -1142497475785.099 }, "end": { "local": "1933-10-19T00:23:24+08:00", "utc": "1933-10-18T16:23:24Z", "ms": -1142494595785.099 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-10-19", "window": { "start": { "local": "1933-10-19T23:35:13+08:00", "utc": "1933-10-19T15:35:13Z", "ms": -1142411086918.5063 }, "end": { "local": "1933-10-20T00:23:13+08:00", "utc": "1933-10-19T16:23:13Z", "ms": -1142408206918.5063 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Amāvasyā runs from 15:50 on Wed 18 Oct to 13:45 on Thu 19 Oct.", "fact": "1933-10-18T07:49:52Z → 1933-10-19T05:44:37Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 on the 18th, 23:35–00:23 on the 19th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 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 night qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 27932 s" }, { "step": "ruling", "text": "Kālī Pūjā, Lu’an, 1933: Wednesday 18 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "kali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)" } ], "kaala": "nishita", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-18", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-18", "confidence": "determinate" } ], "quote": "In Lu’an, Kālī Pūjā 1933 falls on Wednesday 18 October. Amāvasyā runs from 15:50 on Wed 18 Oct to 13:45 on Thu 19 Oct and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/bali-puja", "festival": "bali-puja", "name": "Bali Pūjā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-19", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 14004, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-10-19T13:44:37+08:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T11:13:20+08:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-19T13:44:37+08:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T11:13:20+08:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-19", "window": { "start": { "local": "1933-10-19T17:38:01+08:00", "utc": "1933-10-19T09:38:01Z", "ms": -1142432518748.4438 }, "end": { "local": "1933-10-19T19:19:40+08:00", "utc": "1933-10-19T11:19:40Z", "ms": -1142426419593.794 } }, "covered_min": 102, "window_min": 102, "qualifies": true }, { "local_date": "1933-10-20", "window": { "start": { "local": "1933-10-20T17:36:55+08:00", "utc": "1933-10-20T09:36:55Z", "ms": -1142346184639.0889 }, "end": { "local": "1933-10-20T19:18:49+08:00", "utc": "1933-10-20T11:18:49Z", "ms": -1142340070716.4326 } }, "covered_min": 0, "window_min": 102, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 13:45 on Thu 19 Oct to 11:13 on Fri 20 Oct.", "fact": "1933-10-19T05:44:37Z → 1933-10-20T03:13:20Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:38–19:20 on the 19th, 17:37–19:19 on the 20th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pradoṣa. It covers 102 of 102 minutes on the 19th and 0 of 102 on the 20th.", "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 14004 s" }, { "step": "ruling", "text": "Bali Pūjā, Lu’an, 1933: Thursday 19 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "bali-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "pradosha", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-19", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-19", "confidence": "determinate" } ], "quote": "In Lu’an, Bali Pūjā 1933 falls on Thursday 19 October. Pratipadā runs from 13:45 on Thu 19 Oct to 11:13 on Fri 20 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/govardhana-puja", "festival": "govardhana-puja", "name": "Govardhana Pūjā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1280, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-10-19T13:44:37+08:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T11:13:20+08:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-19T13:44:37+08:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T11:13:20+08:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-19", "window": { "start": { "local": "1933-10-19T11:34:51+08:00", "utc": "1933-10-19T03:34:51Z", "ms": -1142454309158.8916 }, "end": { "local": "1933-10-19T12:22:51+08:00", "utc": "1933-10-19T04:22:51Z", "ms": -1142451429158.8916 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-20", "window": { "start": { "local": "1933-10-20T11:34:40+08:00", "utc": "1933-10-20T03:34:40Z", "ms": -1142367919863.8289 }, "end": { "local": "1933-10-20T12:22:40+08:00", "utc": "1933-10-20T04:22:40Z", "ms": -1142365039863.8289 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 13:45 on Thu 19 Oct to 11:13 on Fri 20 Oct.", "fact": "1933-10-19T05:44:37Z → 1933-10-20T03:13:20Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 19th, 11:35–12:23 on the 20th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 0 of 48 on the 20th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: purvaviddha → second-day · margin 1280 s" }, { "step": "ruling", "text": "Govardhana Pūjā, Lu’an, 1933: Friday 20 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "govardhana-puja", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-20", "confidence": "determinate" } ], "quote": "In Lu’an, Govardhana Pūjā 1933 falls on Friday 20 October. Pratipadā runs from 13:45 on Thu 19 Oct to 11:13 on Fri 20 Oct, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/yama-dvitiya", "festival": "yama-dvitiya", "name": "Yama Dvitīyā", "everyday": "Bhai Dooj", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 1280, "anga": { "type": "tithi", "index": 1, "key": "dvitiya", "name": "Dvitīyā", "start": { "local": "1933-10-20T11:13:20+08:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 }, "end": { "local": "1933-10-21T08:25:27+08:00", "utc": "1933-10-21T00:25:27Z", "ms": -1142292873130.7334 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-20T11:13:20+08:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 }, "end": { "local": "1933-10-21T08:25:27+08:00", "utc": "1933-10-21T00:25:27Z", "ms": -1142292873130.7334 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-20", "window": { "start": { "local": "1933-10-20T11:34:40+08:00", "utc": "1933-10-20T03:34:40Z", "ms": -1142367919863.8289 }, "end": { "local": "1933-10-20T12:22:40+08:00", "utc": "1933-10-20T04:22:40Z", "ms": -1142365039863.8289 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-10-21", "window": { "start": { "local": "1933-10-21T11:34:30+08:00", "utc": "1933-10-21T03:34:30Z", "ms": -1142281529933.025 }, "end": { "local": "1933-10-21T12:22:30+08:00", "utc": "1933-10-21T04:22:30Z", "ms": -1142278649933.025 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvitīyā runs from 11:13 on Fri 20 Oct to 08:25 on Sat 21 Oct.", "fact": "1933-10-20T03:13:20Z → 1933-10-21T00:25:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 20th, 11:35–12:23 on the 21st.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Dvitīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 1280 s" }, { "step": "ruling", "text": "Yama Dvitīyā, Lu’an, 1933: Friday 20 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "yama-dvitiya", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 2 Bhratrdvitiya, Yamadvitiya (madhyahna, purvaviddha), Masyadhara (Dwat) puja (Bihar)." } ], "kaala": "madhyahna", "priority": "purvaviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-20", "confidence": "determinate" } ], "quote": "In Lu’an, Yama Dvitīyā (Bhai Dooj) 1933 falls on Friday 20 October. Dvitīyā runs from 11:13 on Fri 20 Oct to 08:25 on Sat 21 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/dyuta-pratipad", "festival": "dyuta-pratipad", "name": "Dyūta Pratipad", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 4045, "anga": { "type": "tithi", "index": 0, "key": "pratipada", "name": "Pratipadā", "start": { "local": "1933-10-19T13:44:37+08:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T11:13:20+08:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-19T13:44:37+08:00", "utc": "1933-10-19T05:44:37Z", "ms": -1142446522560.2498 }, "end": { "local": "1933-10-20T11:13:20+08:00", "utc": "1933-10-20T03:13:20Z", "ms": -1142369199806.1118 } }, "kaala": "purvahna", "days": [ { "local_date": "1933-10-19", "window": { "start": { "local": "1933-10-19T06:19:40+08:00", "utc": "1933-10-18T22:19:40Z", "ms": -1142473219569.3396 }, "end": { "local": "1933-10-19T10:05:47+08:00", "utc": "1933-10-19T02:05:47Z", "ms": -1142459652629.041 } }, "covered_min": 0, "window_min": 226, "qualifies": false }, { "local_date": "1933-10-20", "window": { "start": { "local": "1933-10-20T06:20:25+08:00", "utc": "1933-10-19T22:20:25Z", "ms": -1142386775088.5688 }, "end": { "local": "1933-10-20T10:05:55+08:00", "utc": "1933-10-20T02:05:55Z", "ms": -1142373244938.7422 } }, "covered_min": 226, "window_min": 226, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pratipadā runs from 13:45 on Thu 19 Oct to 11:13 on Fri 20 Oct.", "fact": "1933-10-19T05:44:37Z → 1933-10-20T03:13:20Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:20–10:06 on the 19th, 06:20–10:06 on the 20th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pratipadā must be present during pūrvāhṇa. It covers 0 of 226 minutes on the 19th and 226 of 226 on the 20th.", "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 4045 s" }, { "step": "ruling", "text": "Dyūta Pratipad, Lu’an, 1933: Friday 20 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "dyuta-pratipad", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna)." } ], "kaala": "purvahna", "priority": "unstated", "when_absent": "unstated" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-20", "confidence": "determinate" } ], "quote": "In Lu’an, Dyūta Pratipad 1933 falls on Friday 20 October. Pratipadā runs from 13:45 on Thu 19 Oct to 11:13 on Fri 20 Oct and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/naga-chaturthi", "festival": "naga-chaturthi", "name": "Nāga Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21838, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-10-22T05:30:23+08:00", "utc": "1933-10-21T21:30:23Z", "ms": -1142216976950.6182 }, "end": { "local": "1933-10-23T02:36:58+08:00", "utc": "1933-10-22T18:36:58Z", "ms": -1142140981864.4548 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-22T05:30:23+08:00", "utc": "1933-10-21T21:30:23Z", "ms": -1142216976950.6182 }, "end": { "local": "1933-10-23T02:36:58+08:00", "utc": "1933-10-22T18:36:58Z", "ms": -1142140981864.4548 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-22", "window": { "start": { "local": "1933-10-22T11:34:21+08:00", "utc": "1933-10-22T03:34:21Z", "ms": -1142195139355.2441 }, "end": { "local": "1933-10-22T12:22:21+08:00", "utc": "1933-10-22T04:22:21Z", "ms": -1142192259355.2441 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-10-23", "window": { "start": { "local": "1933-10-23T11:34:12+08:00", "utc": "1933-10-23T03:34:12Z", "ms": -1142108748119.3413 }, "end": { "local": "1933-10-23T12:22:12+08:00", "utc": "1933-10-23T04:22:12Z", "ms": -1142105868119.3413 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:30 on Sun 22 Oct to 02:37 on Mon 23 Oct.", "fact": "1933-10-21T21:30:23Z → 1933-10-22T18:36:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 22nd, 11:34–12:22 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 21838 s" }, { "step": "ruling", "text": "Nāga Caturthī, Lu’an, 1933: Sunday 22 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-chaturthi", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 4 Naga caturthi (paraviddha and madhyahnavyapini)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-22", "confidence": "determinate" } ], "quote": "In Lu’an, Nāga Caturthī 1933 falls on Sunday 22 October. Caturthī runs from 05:30 on Sun 22 Oct to 02:37 on Mon 23 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-10-22", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21838, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-10-22T05:30:23+08:00", "utc": "1933-10-21T21:30:23Z", "ms": -1142216976950.6182 }, "end": { "local": "1933-10-23T02:36:58+08:00", "utc": "1933-10-22T18:36:58Z", "ms": -1142140981864.4548 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-22T05:30:23+08:00", "utc": "1933-10-21T21:30:23Z", "ms": -1142216976950.6182 }, "end": { "local": "1933-10-23T02:36:58+08:00", "utc": "1933-10-22T18:36:58Z", "ms": -1142140981864.4548 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-22", "window": { "start": { "local": "1933-10-22T11:34:21+08:00", "utc": "1933-10-22T03:34:21Z", "ms": -1142195139355.2441 }, "end": { "local": "1933-10-22T12:22:21+08:00", "utc": "1933-10-22T04:22:21Z", "ms": -1142192259355.2441 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-10-23", "window": { "start": { "local": "1933-10-23T11:34:12+08:00", "utc": "1933-10-23T03:34:12Z", "ms": -1142108748119.3413 }, "end": { "local": "1933-10-23T12:22:12+08:00", "utc": "1933-10-23T04:22:12Z", "ms": -1142105868119.3413 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 05:30 on Sun 22 Oct to 02:37 on Mon 23 Oct.", "fact": "1933-10-21T21:30:23Z → 1933-10-22T18:36:58Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 22nd, 11:34–12:22 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 21838 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Lu’an, 1933: Sunday 22 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": "1933-10-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-22", "confidence": "determinate" } ], "quote": "In Lu’an, Vināyaka Caturthī 1933 falls on Sunday 22 October. Caturthī runs from 05:30 on Sun 22 Oct to 02:37 on Mon 23 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-10-22", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/surya-shashthi", "festival": "surya-shashthi", "name": "Sūrya Ṣaṣṭhī", "everyday": "Chhath", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-24", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 32548, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-10-23T23:52:56+08:00", "utc": "1933-10-23T15:52:56Z", "ms": -1142064423864.533 }, "end": { "local": "1933-10-24T21:24:32+08:00", "utc": "1933-10-24T13:24:32Z", "ms": -1141986927866.8828 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-23T23:52:56+08:00", "utc": "1933-10-23T15:52:56Z", "ms": -1142064423864.533 }, "end": { "local": "1933-10-24T21:24:32+08:00", "utc": "1933-10-24T13:24:32Z", "ms": -1141986927866.8828 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-23", "window": { "start": { "local": "1933-10-23T11:34:12+08:00", "utc": "1933-10-23T03:34:12Z", "ms": -1142108748119.3413 }, "end": { "local": "1933-10-23T12:22:12+08:00", "utc": "1933-10-23T04:22:12Z", "ms": -1142105868119.3413 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-24", "window": { "start": { "local": "1933-10-24T11:34:04+08:00", "utc": "1933-10-24T03:34:04Z", "ms": -1142022356213.8767 }, "end": { "local": "1933-10-24T12:22:04+08:00", "utc": "1933-10-24T04:22:04Z", "ms": -1142019476213.8767 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 23:53 on Mon 23 Oct to 21:25 on Tue 24 Oct.", "fact": "1933-10-23T15:52:56Z → 1933-10-24T13:24:32Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 23rd, 11:34–12:22 on the 24th.", "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 23rd and 48 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: unstated → only-day · margin 32548 s" }, { "step": "ruling", "text": "Sūrya Ṣaṣṭhī, Lu’an, 1933: Tuesday 24 October.", "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": "1933-10-24", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-24", "confidence": "determinate" } ], "quote": "In Lu’an, Sūrya Ṣaṣṭhī (Chhath) 1933 falls on Tuesday 24 October. Ṣaṣṭhī runs from 23:53 on Mon 23 Oct to 21:25 on Tue 24 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/gopashtami", "festival": "gopashtami", "name": "Gopāṣṭamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-26", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 18540, "anga": { "type": "tithi", "index": 7, "key": "ashtami", "name": "Aṣṭamī", "start": { "local": "1933-10-25T19:16:16+08:00", "utc": "1933-10-25T11:16:16Z", "ms": -1141908223628.3665 }, "end": { "local": "1933-10-26T17:30:50+08:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-25T19:16:16+08:00", "utc": "1933-10-25T11:16:16Z", "ms": -1141908223628.3665 }, "end": { "local": "1933-10-26T17:30:50+08:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-25", "window": { "start": { "local": "1933-10-25T11:33:56+08:00", "utc": "1933-10-25T03:33:56Z", "ms": -1141935963626.85 }, "end": { "local": "1933-10-25T12:21:56+08:00", "utc": "1933-10-25T04:21:56Z", "ms": -1141933083626.85 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-26", "window": { "start": { "local": "1933-10-26T11:33:50+08:00", "utc": "1933-10-26T03:33:50Z", "ms": -1141849570345.5762 }, "end": { "local": "1933-10-26T12:21:50+08:00", "utc": "1933-10-26T04:21:50Z", "ms": -1141846690345.5762 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Aṣṭamī runs from 19:16 on Wed 25 Oct to 17:31 on Thu 26 Oct.", "fact": "1933-10-25T11:16:16Z → 1933-10-26T09:30:50Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 25th, 11:34–12:22 on the 26th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 18540 s" }, { "step": "ruling", "text": "Gopāṣṭamī, Lu’an, 1933: Thursday 26 October.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "gopashtami", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 8 Gopastami, Gosthastami." } ], "kaala": "madhyahna", "priority": "unstated", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-10-26", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-26", "confidence": "determinate" } ], "quote": "In Lu’an, Gopāṣṭamī 1933 falls on Thursday 26 October. Aṣṭamī runs from 19:16 on Wed 25 Oct to 17:31 on Thu 26 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/akshaya-navami", "festival": "akshaya-navami", "name": "Akṣaya Navamī", "everyday": "Amla Navami", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 21729, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1933-10-26T17:30:50+08:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 }, "end": { "local": "1933-10-27T16:09:14+08:00", "utc": "1933-10-27T08:09:14Z", "ms": -1141746646229.552 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-26T17:30:50+08:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 }, "end": { "local": "1933-10-27T16:09:14+08:00", "utc": "1933-10-27T08:09:14Z", "ms": -1141746646229.552 } }, "kaala": "purvahna", "days": [ { "local_date": "1933-10-26", "window": { "start": { "local": "1933-10-26T06:25:00+08:00", "utc": "1933-10-25T22:25:00Z", "ms": -1141868100179.5981 }, "end": { "local": "1933-10-26T10:06:53+08:00", "utc": "1933-10-26T02:06:53Z", "ms": -1141854786956.917 } }, "covered_min": 0, "window_min": 222, "qualifies": false }, { "local_date": "1933-10-27", "window": { "start": { "local": "1933-10-27T06:25:47+08:00", "utc": "1933-10-26T22:25:47Z", "ms": -1141781653060.193 }, "end": { "local": "1933-10-27T10:07:05+08:00", "utc": "1933-10-27T02:07:05Z", "ms": -1141768375257.8682 } }, "covered_min": 221, "window_min": 221, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 17:31 on Thu 26 Oct to 16:09 on Fri 27 Oct.", "fact": "1933-10-26T09:30:50Z → 1933-10-27T08:09:14Z" }, { "step": "kaala", "text": "Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:25–10:07 on the 26th, 06:26–10:07 on the 27th.", "fact": "purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during pūrvāhṇa. It covers 0 of 222 minutes on the 26th and 221 of 221 on the 27th.", "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 21729 s" }, { "step": "ruling", "text": "Akṣaya Navamī, Lu’an, 1933: Friday 27 October.", "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": "1933-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-27", "confidence": "determinate" } ], "quote": "In Lu’an, Akṣaya Navamī (Amla Navami) 1933 falls on Friday 27 October. Navamī runs from 17:31 on Thu 26 Oct to 16:09 on Fri 27 Oct and covers all of pūrvāhṇa that forenoon.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/durga-navami", "festival": "durga-navami", "name": "Durgā Navamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 13650, "anga": { "type": "tithi", "index": 8, "key": "navami", "name": "Navamī", "start": { "local": "1933-10-26T17:30:50+08:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 }, "end": { "local": "1933-10-27T16:09:14+08:00", "utc": "1933-10-27T08:09:14Z", "ms": -1141746646229.552 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-26T17:30:50+08:00", "utc": "1933-10-26T09:30:50Z", "ms": -1141828150326.2634 }, "end": { "local": "1933-10-27T16:09:14+08:00", "utc": "1933-10-27T08:09:14Z", "ms": -1141746646229.552 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-10-26", "window": { "start": { "local": "1933-10-26T11:33:50+08:00", "utc": "1933-10-26T03:33:50Z", "ms": -1141849570345.5762 }, "end": { "local": "1933-10-26T12:21:50+08:00", "utc": "1933-10-26T04:21:50Z", "ms": -1141846690345.5762 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-10-27", "window": { "start": { "local": "1933-10-27T11:33:44+08:00", "utc": "1933-10-27T03:33:44Z", "ms": -1141763176356.7056 }, "end": { "local": "1933-10-27T12:21:44+08:00", "utc": "1933-10-27T04:21:44Z", "ms": -1141760296356.7056 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Navamī runs from 17:31 on Thu 26 Oct to 16:09 on Fri 27 Oct.", "fact": "1933-10-26T09:30:50Z → 1933-10-27T08:09:14Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:34–12:22 on the 26th, 11:34–12:22 on the 27th.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 26th and 48 of 48 on the 27th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 13650 s" }, { "step": "ruling", "text": "Durgā Navamī, Lu’an, 1933: Friday 27 October.", "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": "1933-10-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-27", "confidence": "determinate" } ], "quote": "In Lu’an, Durgā Navamī 1933 falls on Friday 27 October. Navamī runs from 17:31 on Thu 26 Oct to 16:09 on Fri 27 Oct and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-10-29", "festival": "ekadashi", "name": "Prabodhinī Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 29330, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-10-28T15:11:17+08:00", "utc": "1933-10-28T07:11:17Z", "ms": -1141663722791.7444 }, "end": { "local": "1933-10-29T14:36:13+08:00", "utc": "1933-10-29T06:36:13Z", "ms": -1141579427468.9307 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-28T15:11:17+08:00", "utc": "1933-10-28T07:11:17Z", "ms": -1141663722791.7444 }, "end": { "local": "1933-10-29T14:36:13+08:00", "utc": "1933-10-29T06:36:13Z", "ms": -1141579427468.9307 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-10-28", "window": { "start": { "local": "1933-10-28T06:26:34+08:00", "utc": "1933-10-27T22:26:34Z", "ms": -1141695205576.9211 }, "end": { "local": "1933-10-28T06:26:34+08:00", "utc": "1933-10-27T22:26:34Z", "ms": -1141695205576.9211 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-10-29", "window": { "start": { "local": "1933-10-29T06:27:22+08:00", "utc": "1933-10-28T22:27:22Z", "ms": -1141608757731.6453 }, "end": { "local": "1933-10-29T06:27:22+08:00", "utc": "1933-10-28T22:27:22Z", "ms": -1141608757731.6453 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 15:11 on Sat 28 Oct to 14:36 on Sun 29 Oct.", "fact": "1933-10-28T07:11:17Z → 1933-10-29T06:36:13Z" }, { "step": "kaala", "text": "Sunrise is at 06:27 on the 28th and 06:27 on the 29th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is not on the 28th and is on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 29330 s" }, { "step": "ruling", "text": "Prabodhinī Ekādaśī, Lu’an, 1933: Sunday 29 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": "1933-10-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-29", "confidence": "determinate" } ], "quote": "In Lu’an, Prabodhinī Ekādaśī 1933 falls on Sunday 29 October. Ekādaśī runs from 15:11 on Sat 28 Oct to 14:36 on Sun 29 Oct and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-10-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-10-30", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-10-30", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 10418, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-10-30T14:23:16+08:00", "utc": "1933-10-30T06:23:16Z", "ms": -1141493804325.7988 }, "end": { "local": "1933-10-31T14:32:17+08:00", "utc": "1933-10-31T06:32:17Z", "ms": -1141406863478.539 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-10-30T14:23:16+08:00", "utc": "1933-10-30T06:23:16Z", "ms": -1141493804325.7988 }, "end": { "local": "1933-10-31T14:32:17+08:00", "utc": "1933-10-31T06:32:17Z", "ms": -1141406863478.539 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-10-30", "window": { "start": { "local": "1933-10-30T17:26:50+08:00", "utc": "1933-10-30T09:26:50Z", "ms": -1141482790481.8945 }, "end": { "local": "1933-10-30T19:11:07+08:00", "utc": "1933-10-30T11:11:07Z", "ms": -1141476533212.6575 } }, "covered_min": 104, "window_min": 104, "qualifies": true }, { "local_date": "1933-10-31", "window": { "start": { "local": "1933-10-31T17:25:55+08:00", "utc": "1933-10-31T09:25:55Z", "ms": -1141396445124.1318 }, "end": { "local": "1933-10-31T19:10:26+08:00", "utc": "1933-10-31T11:10:26Z", "ms": -1141390174046.7427 } }, "covered_min": 0, "window_min": 105, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 14:23 on Mon 30 Oct to 14:32 on Tue 31 Oct.", "fact": "1933-10-30T06:23:16Z → 1933-10-31T06:32:17Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:27–19:11 on the 30th, 17:26–19:10 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 104 of 104 minutes on the 30th and 0 of 105 on the 31st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Only one evening qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 10418 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Monday 30 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": "1933-10-30", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-10-30", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Monday 30 October. Trayodaśī runs from 14:23 on Mon 30 Oct to 14:32 on Tue 31 Oct and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-10-30", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/rasayatra", "festival": "rasayatra", "name": "Rāsayātrā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27276, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-11-01T15:03:51+08:00", "utc": "1933-11-01T07:03:51Z", "ms": -1141318568706.6667 }, "end": { "local": "1933-11-02T15:59:12+08:00", "utc": "1933-11-02T07:59:12Z", "ms": -1141228848385.0725 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-11-01T15:03:51+08:00", "utc": "1933-11-01T07:03:51Z", "ms": -1141318568706.6667 }, "end": { "local": "1933-11-02T15:59:12+08:00", "utc": "1933-11-02T07:59:12Z", "ms": -1141228848385.0725 } }, "kaala": "nishita", "days": [ { "local_date": "1933-11-01", "window": { "start": { "local": "1933-11-01T23:33:49+08:00", "utc": "1933-11-01T15:33:49Z", "ms": -1141287970668.9893 }, "end": { "local": "1933-11-02T00:21:49+08:00", "utc": "1933-11-01T16:21:49Z", "ms": -1141285090668.9893 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-02", "window": { "start": { "local": "1933-11-02T23:33:48+08:00", "utc": "1933-11-02T15:33:48Z", "ms": -1141201571964.5776 }, "end": { "local": "1933-11-03T00:21:48+08:00", "utc": "1933-11-02T16:21:48Z", "ms": -1141198691964.5776 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:04 on Wed 1 Nov to 15:59 on Thu 2 Nov.", "fact": "1933-11-01T07:03:51Z → 1933-11-02T07:59:12Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:34–00:22 on the 1st, 23:34–00:22 on the 2nd.", "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 1st and 0 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one night qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 27276 s" }, { "step": "ruling", "text": "Rāsayātrā, Lu’an, 1933: Wednesday 1 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": "1933-11-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-01", "confidence": "determinate" } ], "quote": "In Lu’an, Rāsayātrā 1933 falls on Wednesday 1 November. Pūrṇimā runs from 15:04 on Wed 1 Nov to 15:59 on Thu 2 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/kartiki-purnima", "festival": "kartiki-purnima", "name": "Kārtikī Pūrṇimā", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-02", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 9747, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-11-01T15:03:51+08:00", "utc": "1933-11-01T07:03:51Z", "ms": -1141318568706.6667 }, "end": { "local": "1933-11-02T15:59:12+08:00", "utc": "1933-11-02T07:59:12Z", "ms": -1141228848385.0725 }, "month": { "amanta": 7, "purnimanta": 7, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Kārtika" } }, "span": { "of": "tithi", "start": { "local": "1933-11-01T15:03:51+08:00", "utc": "1933-11-01T07:03:51Z", "ms": -1141318568706.6667 }, "end": { "local": "1933-11-02T15:59:12+08:00", "utc": "1933-11-02T07:59:12Z", "ms": -1141228848385.0725 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-01", "window": { "start": { "local": "1933-11-01T11:33:25+08:00", "utc": "1933-11-01T03:33:25Z", "ms": -1141331195304.2544 }, "end": { "local": "1933-11-01T12:21:25+08:00", "utc": "1933-11-01T04:21:25Z", "ms": -1141328315304.2544 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-11-02", "window": { "start": { "local": "1933-11-02T11:33:23+08:00", "utc": "1933-11-02T03:33:23Z", "ms": -1141244796773.1575 }, "end": { "local": "1933-11-02T12:21:23+08:00", "utc": "1933-11-02T04:21:23Z", "ms": -1141241916773.1575 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 15:04 on Wed 1 Nov to 15:59 on Thu 2 Nov.", "fact": "1933-11-01T07:03:51Z → 1933-11-02T07:59:12Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:33–12:21 on the 1st, 11:33–12:21 on the 2nd.", "fact": "madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 1st and 48 of 48 on the 2nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: unstated → only-day · margin 9747 s" }, { "step": "ruling", "text": "Kārtikī Pūrṇimā, Lu’an, 1933: Thursday 2 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": "1933-11-02", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-02", "confidence": "determinate" } ], "quote": "In Lu’an, Kārtikī Pūrṇimā 1933 falls on Thursday 2 November. Pūrṇimā runs from 15:04 on Wed 1 Nov to 15:59 on Thu 2 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-11-06", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-06", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 7546, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-11-05T21:14:12+08:00", "utc": "1933-11-05T13:14:12Z", "ms": -1140950748259.2788 }, "end": { "local": "1933-11-06T23:42:07+08:00", "utc": "1933-11-06T15:42:07Z", "ms": -1140855472571.3481 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-05T21:14:12+08:00", "utc": "1933-11-05T13:14:12Z", "ms": -1140950748259.2788 }, "end": { "local": "1933-11-06T23:42:07+08:00", "utc": "1933-11-06T15:42:07Z", "ms": -1140855472571.3481 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-11-05", "window": { "start": { "local": "1933-11-05T19:08:26+08:00", "utc": "1933-11-05T11:08:26Z", "ms": -1140958294147.7039 }, "end": { "local": "1933-11-05T19:08:26+08:00", "utc": "1933-11-05T11:08:26Z", "ms": -1140958294147.7039 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-11-06", "window": { "start": { "local": "1933-11-06T19:59:34+08:00", "utc": "1933-11-06T11:59:34Z", "ms": -1140868826359.422 }, "end": { "local": "1933-11-06T19:59:34+08:00", "utc": "1933-11-06T11:59:34Z", "ms": -1140868826359.422 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 21:14 on Sun 5 Nov to 23:42 on Mon 6 Nov.", "fact": "1933-11-05T13:14:12Z → 1933-11-06T15:42:07Z" }, { "step": "kaala", "text": "Moonrise is at 19:08 on the 5th and 20:00 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 7546 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Monday 6 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": "1933-11-06", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-06", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Monday 6 November. Caturthī runs from 21:14 on Sun 5 Nov to 23:42 on Mon 6 Nov and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-11-06", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ekadashi?on=1933-11-14", "festival": "ekadashi", "name": "Utpannā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-14", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11977, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-11-13T10:35:10+08:00", "utc": "1933-11-13T02:35:10Z", "ms": -1140297890075.7927 }, "end": { "local": "1933-11-14T10:00:30+08:00", "utc": "1933-11-14T02:00:30Z", "ms": -1140213570264.5994 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-13T10:35:10+08:00", "utc": "1933-11-13T02:35:10Z", "ms": -1140297890075.7927 }, "end": { "local": "1933-11-14T10:00:30+08:00", "utc": "1933-11-14T02:00:30Z", "ms": -1140213570264.5994 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-11-13", "window": { "start": { "local": "1933-11-13T06:40:00+08:00", "utc": "1933-11-12T22:40:00Z", "ms": -1140312000214.8396 }, "end": { "local": "1933-11-13T06:40:00+08:00", "utc": "1933-11-12T22:40:00Z", "ms": -1140312000214.8396 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-11-14", "window": { "start": { "local": "1933-11-14T06:40:52+08:00", "utc": "1933-11-13T22:40:52Z", "ms": -1140225547602.7888 }, "end": { "local": "1933-11-14T06:40:52+08:00", "utc": "1933-11-13T22:40:52Z", "ms": -1140225547602.7888 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 10:35 on Mon 13 Nov to 10:00 on Tue 14 Nov.", "fact": "1933-11-13T02:35:10Z → 1933-11-14T02:00:30Z" }, { "step": "kaala", "text": "Sunrise is at 06:40 on the 13th and 06:41 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 11977 s" }, { "step": "ruling", "text": "Utpannā Ekādaśī, Lu’an, 1933: Tuesday 14 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": "1933-11-14", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-14", "confidence": "determinate" } ], "quote": "In Lu’an, Utpannā Ekādaśī 1933 falls on Tuesday 14 November. Ekādaśī runs from 10:35 on Mon 13 Nov to 10:00 on Tue 14 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-11-14", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-11-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 31206, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-11-15T08:34:50+08:00", "utc": "1933-11-15T00:34:50Z", "ms": -1140132309582.8838 }, "end": { "local": "1933-11-16T06:24:06+08:00", "utc": "1933-11-15T22:24:06Z", "ms": -1140053754155.6382 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-15T08:34:50+08:00", "utc": "1933-11-15T00:34:50Z", "ms": -1140132309582.8838 }, "end": { "local": "1933-11-16T06:24:06+08:00", "utc": "1933-11-15T22:24:06Z", "ms": -1140053754155.6382 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-11-15", "window": { "start": { "local": "1933-11-15T17:14:56+08:00", "utc": "1933-11-15T09:14:56Z", "ms": -1140101103920.7117 }, "end": { "local": "1933-11-15T19:02:38+08:00", "utc": "1933-11-15T11:02:38Z", "ms": -1140094642325.9856 } }, "covered_min": 108, "window_min": 108, "qualifies": true }, { "local_date": "1933-11-16", "window": { "start": { "local": "1933-11-16T17:14:24+08:00", "utc": "1933-11-16T09:14:24Z", "ms": -1140014735872.3801 }, "end": { "local": "1933-11-16T19:02:17+08:00", "utc": "1933-11-16T11:02:17Z", "ms": -1140008262954.9126 } }, "covered_min": 0, "window_min": 108, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 08:35 on Wed 15 Nov to 06:24 on Thu 16 Nov.", "fact": "1933-11-15T00:34:50Z → 1933-11-15T22:24:06Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:15–19:03 on the 15th, 17:14–19:02 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 108 of 108 minutes on the 15th and 0 of 108 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 31206 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Wednesday 15 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": "1933-11-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-15", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Wednesday 15 November. Trayodaśī runs from 08:35 on Wed 15 Nov to 06:24 on Thu 16 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-11-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shivaratri?on=1933-11-16", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-16", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 11639, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-11-16T06:24:06+08:00", "utc": "1933-11-15T22:24:06Z", "ms": -1140053754155.6382 }, "end": { "local": "1933-11-17T03:36:56+08:00", "utc": "1933-11-16T19:36:56Z", "ms": -1139977383847.8616 }, "month": { "amanta": 7, "purnimanta": 8, "adhika": false, "amanta_name": "Kārtika", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-16T06:24:06+08:00", "utc": "1933-11-15T22:24:06Z", "ms": -1140053754155.6382 }, "end": { "local": "1933-11-17T03:36:56+08:00", "utc": "1933-11-16T19:36:56Z", "ms": -1139977383847.8616 } }, "kaala": "nishita", "days": [ { "local_date": "1933-11-15", "window": { "start": { "local": "1933-11-15T23:34:47+08:00", "utc": "1933-11-15T15:34:47Z", "ms": -1140078312940.4888 }, "end": { "local": "1933-11-16T00:22:47+08:00", "utc": "1933-11-15T16:22:47Z", "ms": -1140075432940.4888 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-11-16", "window": { "start": { "local": "1933-11-16T23:34:58+08:00", "utc": "1933-11-16T15:34:58Z", "ms": -1139991902431.877 }, "end": { "local": "1933-11-17T00:22:58+08:00", "utc": "1933-11-16T16:22:58Z", "ms": -1139989022431.877 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 06:24 on Thu 16 Nov to 03:37 on Fri 17 Nov.", "fact": "1933-11-15T22:24:06Z → 1933-11-16T19:36:56Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:35–00:23 on the 15th, 23:35–00:23 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 11639 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Thursday 16 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": "1933-11-16", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-16", "confidence": "determinate" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Thursday 16 November. Caturdaśī runs from 06:24 on Thu 16 Nov to 03:37 on Fri 17 Nov and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-11-16", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/naga-panchami-margashirsha", "festival": "naga-panchami-margashirsha", "name": "Nāga Pañcamī (Mārgaśīrṣa)", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2748, "anga": { "type": "tithi", "index": 4, "key": "panchami", "name": "Pañcamī", "start": { "local": "1933-11-21T10:49:48+08:00", "utc": "1933-11-21T02:49:48Z", "ms": -1139605811745.0264 }, "end": { "local": "1933-11-22T08:05:50+08:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-21T10:49:48+08:00", "utc": "1933-11-21T02:49:48Z", "ms": -1139605811745.0264 }, "end": { "local": "1933-11-22T08:05:50+08:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-21", "window": { "start": { "local": "1933-11-21T11:35:36+08:00", "utc": "1933-11-21T03:35:36Z", "ms": -1139603063967.0493 }, "end": { "local": "1933-11-21T12:23:36+08:00", "utc": "1933-11-21T04:23:36Z", "ms": -1139600183967.0493 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-22", "window": { "start": { "local": "1933-11-22T11:35:51+08:00", "utc": "1933-11-22T03:35:51Z", "ms": -1139516648538.276 }, "end": { "local": "1933-11-22T12:23:51+08:00", "utc": "1933-11-22T04:23:51Z", "ms": -1139513768538.276 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pañcamī runs from 10:50 on Tue 21 Nov to 08:06 on Wed 22 Nov.", "fact": "1933-11-21T02:49:48Z → 1933-11-22T00:05:50Z" }, { "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": "Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 2748 s" }, { "step": "ruling", "text": "Nāga Pañcamī (Mārgaśīrṣa), Lu’an, 1933: Tuesday 21 November.", "fact": "confidence: determinate" } ], "rule": { "kind": "lunar", "id": "naga-panchami-margashirsha", "references": [ { "text": "Calendar Reform Committee 1955, General Rules for Religious Festivals", "locator": "p. 104", "url": "https://archive.org/details/calendar_reform_comittee_report", "quote": "S 5 Naga pancami (2nd) (paraviddha)." } ], "kaala": "madhyahna", "priority": "paraviddha", "when_absent": "second-day" }, "alternatives": [ { "kind": "profile", "profile": "classical@2026.1", "local_date": "1933-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-21", "confidence": "determinate" } ], "quote": "In Lu’an, Nāga Pañcamī (Mārgaśīrṣa) 1933 falls on Tuesday 21 November. Pañcamī runs from 10:50 on Tue 21 Nov to 08:06 on Wed 22 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-11-21", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-21", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2748, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-11-20T13:58:24+08:00", "utc": "1933-11-20T05:58:24Z", "ms": -1139680895714.3235 }, "end": { "local": "1933-11-21T10:49:48+08:00", "utc": "1933-11-21T02:49:48Z", "ms": -1139605811745.0264 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-20T13:58:24+08:00", "utc": "1933-11-20T05:58:24Z", "ms": -1139680895714.3235 }, "end": { "local": "1933-11-21T10:49:48+08:00", "utc": "1933-11-21T02:49:48Z", "ms": -1139605811745.0264 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-20", "window": { "start": { "local": "1933-11-20T11:35:21+08:00", "utc": "1933-11-20T03:35:21Z", "ms": -1139689478600.5376 }, "end": { "local": "1933-11-20T12:23:21+08:00", "utc": "1933-11-20T04:23:21Z", "ms": -1139686598600.5376 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-11-21", "window": { "start": { "local": "1933-11-21T11:35:36+08:00", "utc": "1933-11-21T03:35:36Z", "ms": -1139603063967.0493 }, "end": { "local": "1933-11-21T12:23:36+08:00", "utc": "1933-11-21T04:23:36Z", "ms": -1139600183967.0493 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "second-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 13:58 on Mon 20 Nov to 10:50 on Tue 21 Nov.", "fact": "1933-11-20T05:58:24Z → 1933-11-21T02:49:48Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 20th, 11:36–12:24 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 0 of 48 on the 21st.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 108" }, { "step": "tie_break", "text": "Neither midday qualifies. The rule takes the second day.", "fact": "priority: unstated → second-day · margin 2748 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Lu’an, 1933: Tuesday 21 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": "1933-11-21", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-21", "confidence": "determinate" } ], "quote": "In Lu’an, Vināyaka Caturthī 1933 falls on Tuesday 21 November. Caturthī runs from 13:58 on Mon 20 Nov to 10:50 on Tue 21 Nov, and reaches madhyāhna on neither day.", "cite": "https://ahargana.org/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-11-21", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/champa-shashthi", "festival": "champa-shashthi", "name": "Campā Ṣaṣṭhī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12601, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-11-22T08:05:50+08:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 }, "end": { "local": "1933-11-23T05:52:39+08:00", "utc": "1933-11-22T21:52:39Z", "ms": -1139450840893.8894 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-22T08:05:50+08:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 }, "end": { "local": "1933-11-23T05:52:39+08:00", "utc": "1933-11-22T21:52:39Z", "ms": -1139450840893.8894 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-22", "window": { "start": { "local": "1933-11-22T11:35:51+08:00", "utc": "1933-11-22T03:35:51Z", "ms": -1139516648538.276 }, "end": { "local": "1933-11-22T12:23:51+08:00", "utc": "1933-11-22T04:23:51Z", "ms": -1139513768538.276 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-23", "window": { "start": { "local": "1933-11-23T11:36:08+08:00", "utc": "1933-11-23T03:36:08Z", "ms": -1139430232327.4404 }, "end": { "local": "1933-11-23T12:24:08+08:00", "utc": "1933-11-23T04:24:08Z", "ms": -1139427352327.4404 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 08:06 on Wed 22 Nov to 05:53 on Thu 23 Nov.", "fact": "1933-11-22T00:05:50Z → 1933-11-22T21:52:39Z" }, { "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": "Ṣaṣṭhī 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12601 s" }, { "step": "ruling", "text": "Campā Ṣaṣṭhī, Lu’an, 1933: Wednesday 22 November.", "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": "1933-11-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-22", "confidence": "determinate" } ], "quote": "In Lu’an, Campā Ṣaṣṭhī 1933 falls on Wednesday 22 November. Ṣaṣṭhī runs from 08:06 on Wed 22 Nov to 05:53 on Thu 23 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/skanda-shashthi", "festival": "skanda-shashthi", "name": "Skanda Ṣaṣṭhī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-22", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12601, "anga": { "type": "tithi", "index": 5, "key": "shashthi", "name": "Ṣaṣṭhī", "start": { "local": "1933-11-22T08:05:50+08:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 }, "end": { "local": "1933-11-23T05:52:39+08:00", "utc": "1933-11-22T21:52:39Z", "ms": -1139450840893.8894 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-22T08:05:50+08:00", "utc": "1933-11-22T00:05:50Z", "ms": -1139529249860.9226 }, "end": { "local": "1933-11-23T05:52:39+08:00", "utc": "1933-11-22T21:52:39Z", "ms": -1139450840893.8894 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-22", "window": { "start": { "local": "1933-11-22T11:35:51+08:00", "utc": "1933-11-22T03:35:51Z", "ms": -1139516648538.276 }, "end": { "local": "1933-11-22T12:23:51+08:00", "utc": "1933-11-22T04:23:51Z", "ms": -1139513768538.276 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-23", "window": { "start": { "local": "1933-11-23T11:36:08+08:00", "utc": "1933-11-23T03:36:08Z", "ms": -1139430232327.4404 }, "end": { "local": "1933-11-23T12:24:08+08:00", "utc": "1933-11-23T04:24:08Z", "ms": -1139427352327.4404 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ṣaṣṭhī runs from 08:06 on Wed 22 Nov to 05:53 on Thu 23 Nov.", "fact": "1933-11-22T00:05:50Z → 1933-11-22T21:52:39Z" }, { "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": "Ṣaṣṭhī 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 12601 s" }, { "step": "ruling", "text": "Skanda Ṣaṣṭhī, Lu’an, 1933: Wednesday 22 November.", "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": "1933-11-22", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-22", "confidence": "determinate" } ], "quote": "In Lu’an, Skanda Ṣaṣṭhī 1933 falls on Wednesday 22 November. Ṣaṣṭhī runs from 08:06 on Wed 22 Nov to 05:53 on Thu 23 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/mitra-saptami", "festival": "mitra-saptami", "name": "Mitra Saptamī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-23", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 20609, "anga": { "type": "tithi", "index": 6, "key": "saptami", "name": "Saptamī", "start": { "local": "1933-11-23T05:52:39+08:00", "utc": "1933-11-22T21:52:39Z", "ms": -1139450840893.8894 }, "end": { "local": "1933-11-24T04:14:05+08:00", "utc": "1933-11-23T20:14:05Z", "ms": -1139370354801.4604 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-23T05:52:39+08:00", "utc": "1933-11-22T21:52:39Z", "ms": -1139450840893.8894 }, "end": { "local": "1933-11-24T04:14:05+08:00", "utc": "1933-11-23T20:14:05Z", "ms": -1139370354801.4604 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-23", "window": { "start": { "local": "1933-11-23T11:36:08+08:00", "utc": "1933-11-23T03:36:08Z", "ms": -1139430232327.4404 }, "end": { "local": "1933-11-23T12:24:08+08:00", "utc": "1933-11-23T04:24:08Z", "ms": -1139427352327.4404 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-24", "window": { "start": { "local": "1933-11-24T11:36:25+08:00", "utc": "1933-11-24T03:36:25Z", "ms": -1139343815347.455 }, "end": { "local": "1933-11-24T12:24:25+08:00", "utc": "1933-11-24T04:24:25Z", "ms": -1139340935347.455 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Saptamī runs from 05:53 on Thu 23 Nov to 04:14 on Fri 24 Nov.", "fact": "1933-11-22T21:52:39Z → 1933-11-23T20:14:05Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 23rd, 11:36–12:24 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. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: purvaviddha → only-day · margin 20609 s" }, { "step": "ruling", "text": "Mitra Saptamī, Lu’an, 1933: Thursday 23 November.", "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": "1933-11-23", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-23", "confidence": "determinate" } ], "quote": "In Lu’an, Mitra Saptamī 1933 falls on Thursday 23 November. Saptamī runs from 05:53 on Thu 23 Nov to 04:14 on Fri 24 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/ekadashi?on=1933-11-27", "festival": "ekadashi", "name": "Mokṣadā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 12576, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-11-27T02:49:16+08:00", "utc": "1933-11-26T18:49:16Z", "ms": -1139116244240.609 }, "end": { "local": "1933-11-28T03:23:33+08:00", "utc": "1933-11-27T19:23:33Z", "ms": -1139027787107.0835 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-27T02:49:16+08:00", "utc": "1933-11-26T18:49:16Z", "ms": -1139116244240.609 }, "end": { "local": "1933-11-28T03:23:33+08:00", "utc": "1933-11-27T19:23:33Z", "ms": -1139027787107.0835 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-11-27", "window": { "start": { "local": "1933-11-27T06:52:17+08:00", "utc": "1933-11-26T22:52:17Z", "ms": -1139101662682.924 }, "end": { "local": "1933-11-27T06:52:17+08:00", "utc": "1933-11-26T22:52:17Z", "ms": -1139101662682.924 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-11-28", "window": { "start": { "local": "1933-11-28T06:53:09+08:00", "utc": "1933-11-27T22:53:09Z", "ms": -1139015211230.3652 }, "end": { "local": "1933-11-28T06:53:09+08:00", "utc": "1933-11-27T22:53:09Z", "ms": -1139015211230.3652 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 02:49 on Mon 27 Nov to 03:24 on Tue 28 Nov.", "fact": "1933-11-26T18:49:16Z → 1933-11-27T19:23:33Z" }, { "step": "kaala", "text": "Sunrise is at 06:52 on the 27th and 06:53 on the 28th.", "fact": "sunrise: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Ekādaśī must be current at sunrise. It is on the 27th and is not on the 28th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105" }, { "step": "tie_break", "text": "Only one sunrise qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 12576 s" }, { "step": "ruling", "text": "Mokṣadā Ekādaśī, Lu’an, 1933: Monday 27 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": "1933-11-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-27", "confidence": "determinate" } ], "quote": "In Lu’an, Mokṣadā Ekādaśī 1933 falls on Monday 27 November. Ekādaśī runs from 02:49 on Mon 27 Nov to 03:24 on Tue 28 Nov and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-11-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/akhanda-dvadashi", "festival": "akhanda-dvadashi", "name": "Akhaṇḍa Dvādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-28", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 26073, "anga": { "type": "tithi", "index": 11, "key": "dvadashi", "name": "Dvādaśī", "start": { "local": "1933-11-28T03:23:33+08:00", "utc": "1933-11-27T19:23:33Z", "ms": -1139027787107.0835 }, "end": { "local": "1933-11-29T04:23:27+08:00", "utc": "1933-11-28T20:23:27Z", "ms": -1138937792608.613 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-28T03:23:33+08:00", "utc": "1933-11-27T19:23:33Z", "ms": -1139027787107.0835 }, "end": { "local": "1933-11-29T04:23:27+08:00", "utc": "1933-11-28T20:23:27Z", "ms": -1138937792608.613 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-11-28", "window": { "start": { "local": "1933-11-28T11:37:40+08:00", "utc": "1933-11-28T03:37:40Z", "ms": -1138998139992.7058 }, "end": { "local": "1933-11-28T12:25:40+08:00", "utc": "1933-11-28T04:25:40Z", "ms": -1138995259992.7058 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-11-29", "window": { "start": { "local": "1933-11-29T11:38:01+08:00", "utc": "1933-11-29T03:38:01Z", "ms": -1138911719362.1514 }, "end": { "local": "1933-11-29T12:26:01+08:00", "utc": "1933-11-29T04:26:01Z", "ms": -1138908839362.1514 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Dvādaśī runs from 03:24 on Tue 28 Nov to 04:23 on Wed 29 Nov.", "fact": "1933-11-27T19:23:33Z → 1933-11-28T20:23:27Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 28th, 11:38–12:26 on the 29th.", "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 28th and 0 of 48 on the 29th.", "fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104" }, { "step": "tie_break", "text": "Only one midday qualifies. No tie-break is needed.", "fact": "priority: paraviddha → only-day · margin 26073 s" }, { "step": "ruling", "text": "Akhaṇḍa Dvādaśī, Lu’an, 1933: Tuesday 28 November.", "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": "1933-11-28", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-28", "confidence": "determinate" } ], "quote": "In Lu’an, Akhaṇḍa Dvādaśī 1933 falls on Tuesday 28 November. Dvādaśī runs from 03:24 on Tue 28 Nov to 04:23 on Wed 29 Nov and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/pradosha-vrata?on=1933-11-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-11-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 33806, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-11-29T04:23:27+08:00", "utc": "1933-11-28T20:23:27Z", "ms": -1138937792608.613 }, "end": { "local": "1933-11-30T05:46:02+08:00", "utc": "1933-11-29T21:46:02Z", "ms": -1138846437702.844 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-11-29T04:23:27+08:00", "utc": "1933-11-28T20:23:27Z", "ms": -1138937792608.613 }, "end": { "local": "1933-11-30T05:46:02+08:00", "utc": "1933-11-29T21:46:02Z", "ms": -1138846437702.844 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-11-28", "window": { "start": { "local": "1933-11-28T17:10:11+08:00", "utc": "1933-11-28T09:10:11Z", "ms": -1138978188755.0464 }, "end": { "local": "1933-11-28T19:00:02+08:00", "utc": "1933-11-28T11:00:02Z", "ms": -1138971598273.2075 } }, "covered_min": 0, "window_min": 110, "qualifies": false }, { "local_date": "1933-11-29", "window": { "start": { "local": "1933-11-29T17:10:01+08:00", "utc": "1933-11-29T09:10:01Z", "ms": -1138891798583.0486 }, "end": { "local": "1933-11-29T19:00:00+08:00", "utc": "1933-11-29T11:00:00Z", "ms": -1138885200032.3997 } }, "covered_min": 110, "window_min": 110, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 04:23 on Wed 29 Nov to 05:46 on Thu 30 Nov.", "fact": "1933-11-28T20:23:27Z → 1933-11-29T21:46:02Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:10–19:00 on the 28th, 17:10–19:00 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 110 minutes on the 28th and 110 of 110 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 33806 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Wednesday 29 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": "1933-11-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-11-29", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Wednesday 29 November. Trayodaśī runs from 04:23 on Wed 29 Nov to 05:46 on Thu 30 Nov and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-11-29", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/dattatreyotpatti", "festival": "dattatreyotpatti", "name": "Dattātreyotpatti", "everyday": "Datta Jayanti", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-12-01", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 27530, "anga": { "type": "tithi", "index": 14, "key": "purnima", "name": "Pūrṇimā", "start": { "local": "1933-12-01T07:29:06+08:00", "utc": "1933-11-30T23:29:06Z", "ms": -1138753854405.8213 }, "end": { "local": "1933-12-02T09:30:53+08:00", "utc": "1933-12-02T01:30:53Z", "ms": -1138660147007.7598 }, "month": { "amanta": 8, "purnimanta": 8, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Mārgaśīrṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-12-01T07:29:06+08:00", "utc": "1933-11-30T23:29:06Z", "ms": -1138753854405.8213 }, "end": { "local": "1933-12-02T09:30:53+08:00", "utc": "1933-12-02T01:30:53Z", "ms": -1138660147007.7598 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-12-01", "window": { "start": { "local": "1933-12-01T17:09:47+08:00", "utc": "1933-12-01T09:09:47Z", "ms": -1138719012902.0183 }, "end": { "local": "1933-12-01T19:00:01+08:00", "utc": "1933-12-01T11:00:01Z", "ms": -1138712399106.2356 } }, "covered_min": 110, "window_min": 110, "qualifies": true }, { "local_date": "1933-12-02", "window": { "start": { "local": "1933-12-02T17:09:43+08:00", "utc": "1933-12-02T09:09:43Z", "ms": -1138632617381.319 }, "end": { "local": "1933-12-02T19:00:04+08:00", "utc": "1933-12-02T11:00:04Z", "ms": -1138625996421.179 } }, "covered_min": 0, "window_min": 110, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Pūrṇimā runs from 07:29 on Fri 1 Dec to 09:31 on Sat 2 Dec.", "fact": "1933-11-30T23:29:06Z → 1933-12-02T01:30:53Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:10–19:00 on the 1st, 17:10–19:00 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 110 of 110 minutes on the 1st and 0 of 110 on the 2nd.", "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 27530 s" }, { "step": "ruling", "text": "Dattātreyotpatti, Lu’an, 1933: Friday 1 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": "1933-12-01", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-12-01", "confidence": "determinate" } ], "quote": "In Lu’an, Dattātreyotpatti (Datta Jayanti) 1933 falls on Friday 1 December. Pūrṇimā runs from 07:29 on Fri 1 Dec to 09:31 on Sat 2 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/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": "/lu-an/festivals/1933/sankashta-chaturthi?on=1933-12-05", "festival": "sankashta-chaturthi", "name": "Saṅkaṣṭa Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-12-05", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 3510, "anga": { "type": "tithi", "index": 18, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-12-05T17:01:59+08:00", "utc": "1933-12-05T09:01:59Z", "ms": -1138373880832.3982 }, "end": { "local": "1933-12-06T19:42:41+08:00", "utc": "1933-12-06T11:42:41Z", "ms": -1138277838796.9739 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-12-05T17:01:59+08:00", "utc": "1933-12-05T09:01:59Z", "ms": -1138373880832.3982 }, "end": { "local": "1933-12-06T19:42:41+08:00", "utc": "1933-12-06T11:42:41Z", "ms": -1138277838796.9739 } }, "kaala": "moonrise", "days": [ { "local_date": "1933-12-05", "window": { "start": { "local": "1933-12-05T19:43:49+08:00", "utc": "1933-12-05T11:43:49Z", "ms": -1138364170522.128 }, "end": { "local": "1933-12-05T19:43:49+08:00", "utc": "1933-12-05T11:43:49Z", "ms": -1138364170522.128 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-12-06", "window": { "start": { "local": "1933-12-06T20:41:11+08:00", "utc": "1933-12-06T12:41:11Z", "ms": -1138274328874.5757 }, "end": { "local": "1933-12-06T20:41:11+08:00", "utc": "1933-12-06T12:41:11Z", "ms": -1138274328874.5757 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 17:02 on Tue 5 Dec to 19:43 on Wed 6 Dec.", "fact": "1933-12-05T09:01:59Z → 1933-12-06T11:42:41Z" }, { "step": "kaala", "text": "Moonrise is at 19:44 on the 5th and 20:41 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 3510 s" }, { "step": "ruling", "text": "Saṅkaṣṭa Caturthī, Lu’an, 1933: Tuesday 5 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": "1933-12-05", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-12-05", "confidence": "determinate" } ], "quote": "In Lu’an, Saṅkaṣṭa Caturthī 1933 falls on Tuesday 5 December. Caturthī runs from 17:02 on Tue 5 Dec to 19:43 on Wed 6 Dec and is current at moonrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/sankashta-chaturthi?on=1933-12-05", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ekadashi?on=1933-12-13", "festival": "ekadashi", "name": "Saphalā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-12-13", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19430, "anga": { "type": "tithi", "index": 25, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-12-13T01:41:05+08:00", "utc": "1933-12-12T17:41:05Z", "ms": -1137737935306.2734 }, "end": { "local": "1933-12-13T23:53:33+08:00", "utc": "1933-12-13T15:53:33Z", "ms": -1137657987437.6406 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-12-13T01:41:05+08:00", "utc": "1933-12-12T17:41:05Z", "ms": -1137737935306.2734 }, "end": { "local": "1933-12-13T23:53:33+08:00", "utc": "1933-12-13T15:53:33Z", "ms": -1137657987437.6406 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-12-13", "window": { "start": { "local": "1933-12-13T07:04:55+08:00", "utc": "1933-12-12T23:04:55Z", "ms": -1137718505362.42 }, "end": { "local": "1933-12-13T07:04:55+08:00", "utc": "1933-12-12T23:04:55Z", "ms": -1137718505362.42 } }, "covered_min": 1, "window_min": 0, "qualifies": true }, { "local_date": "1933-12-14", "window": { "start": { "local": "1933-12-14T07:05:35+08:00", "utc": "1933-12-13T23:05:35Z", "ms": -1137632064613.8015 }, "end": { "local": "1933-12-14T07:05:35+08:00", "utc": "1933-12-13T23:05:35Z", "ms": -1137632064613.8015 } }, "covered_min": 0, "window_min": 0, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 01:41 on Wed 13 Dec to 23:54 on Wed 13 Dec.", "fact": "1933-12-12T17:41:05Z → 1933-12-13T15:53:33Z" }, { "step": "kaala", "text": "Sunrise is at 07:05 on the 13th and 07:06 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 19430 s" }, { "step": "ruling", "text": "Saphalā Ekādaśī, Lu’an, 1933: Wednesday 13 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": "1933-12-13", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-12-13", "confidence": "determinate" } ], "quote": "In Lu’an, Saphalā Ekādaśī 1933 falls on Wednesday 13 December. Ekādaśī runs from 01:41 on Wed 13 Dec to 23:54 on Wed 13 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-12-13", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-12-15", "festival": "pradosha-vrata", "name": "Kṛṣṇa Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 2964, "anga": { "type": "tithi", "index": 27, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-12-14T21:21:24+08:00", "utc": "1933-12-14T13:21:24Z", "ms": -1137580715882.5256 }, "end": { "local": "1933-12-15T18:13:26+08:00", "utc": "1933-12-15T10:13:26Z", "ms": -1137505593503.1912 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-12-14T21:21:24+08:00", "utc": "1933-12-14T13:21:24Z", "ms": -1137580715882.5256 }, "end": { "local": "1933-12-15T18:13:26+08:00", "utc": "1933-12-15T10:13:26Z", "ms": -1137505593503.1912 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-12-14", "window": { "start": { "local": "1933-12-14T17:11:08+08:00", "utc": "1933-12-14T09:11:08Z", "ms": -1137595731940.4668 }, "end": { "local": "1933-12-14T19:02:29+08:00", "utc": "1933-12-14T11:02:29Z", "ms": -1137589051002.5889 } }, "covered_min": 0, "window_min": 111, "qualifies": false }, { "local_date": "1933-12-15", "window": { "start": { "local": "1933-12-15T17:11:27+08:00", "utc": "1933-12-15T09:11:27Z", "ms": -1137509313477.9111 }, "end": { "local": "1933-12-15T19:02:50+08:00", "utc": "1933-12-15T11:02:50Z", "ms": -1137502629852.451 } }, "covered_min": 62, "window_min": 111, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:21 on Thu 14 Dec to 18:13 on Fri 15 Dec.", "fact": "1933-12-14T13:21:24Z → 1933-12-15T10:13:26Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:11–19:02 on the 14th, 17:11–19:03 on the 15th.", "fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Trayodaśī must be present during pradoṣa. It covers 0 of 111 minutes on the 14th and 62 of 111 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 2964 s" }, { "step": "ruling", "text": "Kṛṣṇa Pradoṣa Vrata, Lu’an, 1933: Friday 15 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": "1933-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-12-15", "confidence": "determinate" } ], "quote": "In Lu’an, Kṛṣṇa Pradoṣa Vrata 1933 falls on Friday 15 December. Trayodaśī runs from 21:21 on Thu 14 Dec to 18:13 on Fri 15 Dec and covers 62 of 111 minutes of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-12-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/shivaratri?on=1933-12-15", "festival": "shivaratri", "name": "Śivarātri", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-12-15", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 19904, "anga": { "type": "tithi", "index": 28, "key": "chaturdashi", "name": "Caturdaśī", "start": { "local": "1933-12-15T18:13:26+08:00", "utc": "1933-12-15T10:13:26Z", "ms": -1137505593503.1912 }, "end": { "local": "1933-12-16T14:40:06+08:00", "utc": "1933-12-16T06:40:06Z", "ms": -1137431993711.3606 }, "month": { "amanta": 8, "purnimanta": 9, "adhika": false, "amanta_name": "Mārgaśīrṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-12-15T18:13:26+08:00", "utc": "1933-12-15T10:13:26Z", "ms": -1137505593503.1912 }, "end": { "local": "1933-12-16T14:40:06+08:00", "utc": "1933-12-16T06:40:06Z", "ms": -1137431993711.3606 } }, "kaala": "nishita", "days": [ { "local_date": "1933-12-15", "window": { "start": { "local": "1933-12-15T23:45:10+08:00", "utc": "1933-12-15T15:45:10Z", "ms": -1137485689882.4355 }, "end": { "local": "1933-12-16T00:33:10+08:00", "utc": "1933-12-15T16:33:10Z", "ms": -1137482809882.4355 } }, "covered_min": 48, "window_min": 48, "qualifies": true }, { "local_date": "1933-12-16", "window": { "start": { "local": "1933-12-16T23:45:39+08:00", "utc": "1933-12-16T15:45:39Z", "ms": -1137399261079.4712 }, "end": { "local": "1933-12-17T00:33:39+08:00", "utc": "1933-12-16T16:33:39Z", "ms": -1137396381079.4712 } }, "covered_min": 0, "window_min": 48, "qualifies": false } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturdaśī runs from 18:13 on Fri 15 Dec to 14:40 on Sat 16 Dec.", "fact": "1933-12-15T10:13:26Z → 1933-12-16T06:40:06Z" }, { "step": "kaala", "text": "Niśītha is 1 ghaṭikā either side of midnight: 23:45–00:33 on the 15th, 23:46–00:34 on the 16th.", "fact": "nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′" }, { "step": "rule", "text": "Caturdaśī must be present during niśītha. It covers 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 19904 s" }, { "step": "ruling", "text": "Śivarātri, Lu’an, 1933: Friday 15 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": "1933-12-15", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-12-15", "confidence": "determinate" } ], "quote": "In Lu’an, Śivarātri 1933 falls on Friday 15 December. Caturdaśī runs from 18:13 on Fri 15 Dec to 14:40 on Sat 16 Dec and covers all of niśītha that night.", "cite": "https://ahargana.org/lu-an/festivals/1933/shivaratri?on=1933-12-15", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-12-20", "festival": "vinayaka-chaturthi", "name": "Vināyaka Caturthī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-12-20", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 30596, "anga": { "type": "tithi", "index": 3, "key": "chaturthi", "name": "Caturthī", "start": { "local": "1933-12-19T23:59:05+08:00", "utc": "1933-12-19T15:59:05Z", "ms": -1137139254917.1587 }, "end": { "local": "1933-12-20T21:05:16+08:00", "utc": "1933-12-20T13:05:16Z", "ms": -1137063284373.9082 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-12-19T23:59:05+08:00", "utc": "1933-12-19T15:59:05Z", "ms": -1137139254917.1587 }, "end": { "local": "1933-12-20T21:05:16+08:00", "utc": "1933-12-20T13:05:16Z", "ms": -1137063284373.9082 } }, "kaala": "madhyahna", "days": [ { "local_date": "1933-12-19", "window": { "start": { "local": "1933-12-19T11:46:50+08:00", "utc": "1933-12-19T03:46:50Z", "ms": -1137183190388.8271 }, "end": { "local": "1933-12-19T12:34:50+08:00", "utc": "1933-12-19T04:34:50Z", "ms": -1137180310388.8271 } }, "covered_min": 0, "window_min": 48, "qualifies": false }, { "local_date": "1933-12-20", "window": { "start": { "local": "1933-12-20T11:47:20+08:00", "utc": "1933-12-20T03:47:20Z", "ms": -1137096760271.898 }, "end": { "local": "1933-12-20T12:35:20+08:00", "utc": "1933-12-20T04:35:20Z", "ms": -1137093880271.898 } }, "covered_min": 48, "window_min": 48, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Caturthī runs from 23:59 on Tue 19 Dec to 21:05 on Wed 20 Dec.", "fact": "1933-12-19T15:59:05Z → 1933-12-20T13:05:16Z" }, { "step": "kaala", "text": "Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 19th, 11:47–12:35 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 30596 s" }, { "step": "ruling", "text": "Vināyaka Caturthī, Lu’an, 1933: Wednesday 20 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": "1933-12-20", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-12-20", "confidence": "determinate" } ], "quote": "In Lu’an, Vināyaka Caturthī 1933 falls on Wednesday 20 December. Caturthī runs from 23:59 on Tue 19 Dec to 21:05 on Wed 20 Dec and covers all of madhyāhna that midday.", "cite": "https://ahargana.org/lu-an/festivals/1933/vinayaka-chaturthi?on=1933-12-20", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/ekadashi?on=1933-12-27", "festival": "ekadashi", "name": "Putradā Ekādaśī", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-12-27", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 38287, "anga": { "type": "tithi", "index": 10, "key": "ekadashi", "name": "Ekādaśī", "start": { "local": "1933-12-26T17:50:17+08:00", "utc": "1933-12-26T09:50:17Z", "ms": -1136556583350.836 }, "end": { "local": "1933-12-27T19:28:15+08:00", "utc": "1933-12-27T11:28:15Z", "ms": -1136464304517.4387 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-12-26T17:50:17+08:00", "utc": "1933-12-26T09:50:17Z", "ms": -1136556583350.836 }, "end": { "local": "1933-12-27T19:28:15+08:00", "utc": "1933-12-27T11:28:15Z", "ms": -1136464304517.4387 } }, "kaala": "sunrise", "days": [ { "local_date": "1933-12-26", "window": { "start": { "local": "1933-12-26T07:12:10+08:00", "utc": "1933-12-25T23:12:10Z", "ms": -1136594869903.2961 }, "end": { "local": "1933-12-26T07:12:10+08:00", "utc": "1933-12-25T23:12:10Z", "ms": -1136594869903.2961 } }, "covered_min": 0, "window_min": 0, "qualifies": false }, { "local_date": "1933-12-27", "window": { "start": { "local": "1933-12-27T07:12:34+08:00", "utc": "1933-12-26T23:12:34Z", "ms": -1136508446098.1272 }, "end": { "local": "1933-12-27T07:12:34+08:00", "utc": "1933-12-26T23:12:34Z", "ms": -1136508446098.1272 } }, "covered_min": 1, "window_min": 0, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Ekādaśī runs from 17:50 on Tue 26 Dec to 19:28 on Wed 27 Dec.", "fact": "1933-12-26T09:50:17Z → 1933-12-27T11:28:15Z" }, { "step": "kaala", "text": "Sunrise is at 07:12 on the 26th and 07:13 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 38287 s" }, { "step": "ruling", "text": "Putradā Ekādaśī, Lu’an, 1933: Wednesday 27 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": "1933-12-27", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-12-27", "confidence": "determinate" } ], "quote": "In Lu’an, Putradā Ekādaśī 1933 falls on Wednesday 27 December. Ekādaśī runs from 17:50 on Tue 26 Dec to 19:28 on Wed 27 Dec and is current at sunrise that day.", "cite": "https://ahargana.org/lu-an/festivals/1933/ekadashi?on=1933-12-27", "method": "pac-rp@2026.1", "engine": { "version": "0.1.0", "ruleset": "2026.3-draft", "kernel": "de440-1900-2100", "kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74", "tzdata": "2026f" } }, { "id": "/lu-an/festivals/1933/pradosha-vrata?on=1933-12-29", "festival": "pradosha-vrata", "name": "Śukla Pradoṣa Vrata", "tradition": "smarta", "place": "1802206", "year": 1933, "local_date": "1933-12-29", "confidence": "determinate", "boundary_reasons": [], "boundary_margin_s": 8416, "anga": { "type": "tithi", "index": 12, "key": "trayodashi", "name": "Trayodaśī", "start": { "local": "1933-12-28T21:29:25+08:00", "utc": "1933-12-28T13:29:25Z", "ms": -1136370634655.8752 }, "end": { "local": "1933-12-29T23:47:38+08:00", "utc": "1933-12-29T15:47:38Z", "ms": -1136275942009.5378 }, "month": { "amanta": 9, "purnimanta": 9, "adhika": false, "amanta_name": "Pauṣa", "purnimanta_name": "Pauṣa" } }, "span": { "of": "tithi", "start": { "local": "1933-12-28T21:29:25+08:00", "utc": "1933-12-28T13:29:25Z", "ms": -1136370634655.8752 }, "end": { "local": "1933-12-29T23:47:38+08:00", "utc": "1933-12-29T15:47:38Z", "ms": -1136275942009.5378 } }, "kaala": "pradosha", "days": [ { "local_date": "1933-12-28", "window": { "start": { "local": "1933-12-28T17:17:45+08:00", "utc": "1933-12-28T09:17:45Z", "ms": -1136385734546.7888 }, "end": { "local": "1933-12-28T19:09:10+08:00", "utc": "1933-12-28T11:09:10Z", "ms": -1136379050360.7502 } }, "covered_min": 0, "window_min": 111, "qualifies": false }, { "local_date": "1933-12-29", "window": { "start": { "local": "1933-12-29T17:18:24+08:00", "utc": "1933-12-29T09:18:24Z", "ms": -1136299295938.3281 }, "end": { "local": "1933-12-29T19:09:46+08:00", "utc": "1933-12-29T11:09:46Z", "ms": -1136292614354.0142 } }, "covered_min": 111, "window_min": 111, "qualifies": true } ], "decided_by": "only-day", "explanation": [ { "step": "anga", "text": "Trayodaśī runs from 21:29 on Thu 28 Dec to 23:48 on Fri 29 Dec.", "fact": "1933-12-28T13:29:25Z → 1933-12-29T15:47:38Z" }, { "step": "kaala", "text": "Pradoṣa is 2 muhūrtas after sunset: 17:18–19:09 on the 28th, 17:18–19:10 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 111 minutes on the 28th and 111 of 111 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 8416 s" }, { "step": "ruling", "text": "Śukla Pradoṣa Vrata, Lu’an, 1933: Friday 29 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": "1933-12-29", "confidence": "determinate" }, { "kind": "profile", "profile": "compat-drikpanchang@2026.1", "local_date": "1933-12-29", "confidence": "determinate" } ], "quote": "In Lu’an, Śukla Pradoṣa Vrata 1933 falls on Friday 29 December. Trayodaśī runs from 21:29 on Thu 28 Dec to 23:48 on Fri 29 Dec and covers all of pradoṣa that evening.", "cite": "https://ahargana.org/lu-an/festivals/1933/pradosha-vrata?on=1933-12-29", "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" } }